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CN117358909A - Cooling solidification control method and linear pouring forming equipment - Google Patents

Cooling solidification control method and linear pouring forming equipment Download PDF

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Publication number
CN117358909A
CN117358909A CN202311682138.XA CN202311682138A CN117358909A CN 117358909 A CN117358909 A CN 117358909A CN 202311682138 A CN202311682138 A CN 202311682138A CN 117358909 A CN117358909 A CN 117358909A
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Prior art keywords
cooling
liquid
cooled
position point
temperature
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CN202311682138.XA
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CN117358909B (en
Inventor
齐志坤
王东
任靖辉
钟海胜
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Suzhou Langxin Intelligent Technology Co ltd
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Suzhou Langxin Intelligent Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • B22D2/006—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the temperature of the molten metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/90—Details of database functions independent of the retrieved data types
    • G06F16/903—Querying

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Databases & Information Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Computational Linguistics (AREA)
  • Data Mining & Analysis (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)

Abstract

The invention discloses a cooling solidification control method and linear pouring molding equipment, wherein the control method comprises the following steps: establishing an arrival time database of the liquid to be cooled on the cooling inclined plane, wherein the arrival time database is a collection of arrival time of the liquid to be cooled flowing to each position point on the cooling inclined plane; pre-calculating cooling temperatures of the position points based on the arrival time database; before the liquid to be cooled flows to each position point, the cooling power of each position point is adjusted based on the cooling temperature of each position point so as to cool the liquid to be cooled, so that the liquid to be cooled is in a solidification state when leaving the cooling inclined plane. According to the method, the cooling power of each position point on the cooling inclined plane is adjusted in advance based on the arrival time database, so that the cooling solidification effect of the cooling inclined plane on the liquid to be cooled is guaranteed.

Description

Cooling solidification control method and linear pouring forming equipment
Technical Field
The invention relates to the technical field of pouring forming equipment, in particular to a cooling solidification control method and linear pouring forming equipment.
Background
In the casting production process, the casting process of smelting iron alloy or metal silicon from liquid state to solid state is to cast the liquid iron alloy or metal silicon into a fixed cast iron ingot mould by a ladle, naturally cool and solidify through air, and then transport and crush. The method is characterized in that the air is naturally cooled, so that a large amount of space is needed, the cooling speed is low, the production efficiency is greatly reduced, and the influence of heat radiation and the like on the surrounding environment is also caused.
To solve the above-mentioned problem, application document CN202223075962.2 proposes a mold for ferroalloy casting, so that ferroalloy liquid can be rapidly cooled and molded in an open flow, but a large amount of dynamic variables are involved in the process of cooling the ferroalloy liquid, and the cooling effect is difficult to be ensured by the technical scheme, and the cooling quality is reduced.
Disclosure of Invention
The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, a first object of the present invention is to provide a cooling solidification control method, which adjusts the cooling power of each position point on the cooling inclined plane based on the arrival time database, so as to ensure the cooling solidification effect of the cooling inclined plane to the liquid to be cooled.
A second object of the present invention is to provide a linear casting molding apparatus.
To achieve the above object, an embodiment of a first aspect of the present invention provides a cooling solidification control method, including: establishing an arrival time database of the liquid to be cooled on the cooling inclined plane, wherein the arrival time database is a collection of arrival time of the liquid to be cooled flowing to each position point on the cooling inclined plane; pre-calculating cooling temperatures of the position points based on the arrival time database; before the liquid to be cooled flows to each position point, the cooling power of each position point is adjusted based on the cooling temperature of each position point so as to cool the liquid to be cooled, so that the liquid to be cooled is in a solidification state when leaving the cooling inclined plane.
According to the cooling solidification control method provided by the embodiment of the invention, firstly, an arrival time database of the liquid to be cooled on the cooling inclined plane is established, wherein the arrival time database is a collection of arrival time of the liquid to be cooled flowing to each position point on the cooling inclined plane, cooling temperatures of each position point are calculated in advance based on the arrival time database, and before the liquid to be cooled flows to each position point, cooling power of each position point is regulated based on the cooling temperatures of each position point so as to cool the liquid to be cooled, so that the liquid to be cooled is in a solidification state when leaving the cooling inclined plane. Therefore, the method adjusts the cooling power of each position point on the cooling inclined plane based on the arrival time database, and ensures the cooling solidification effect of the cooling inclined plane on the liquid to be cooled.
In addition, the cooling solidification control method according to the above embodiment of the present invention may further have the following additional technical features:
according to one embodiment of the invention, establishing a database of arrival times of liquid to be cooled on a cooling ramp comprises: acquiring a first initial speed of the liquid to be cooled when flowing out of the container; and determining the arrival time of the liquid to be cooled flowing to each position point based on the first initial speed and the displacement of the liquid to be cooled flowing out of the container and flowing to each position point, and obtaining an arrival time database of the liquid to be cooled on the cooling inclined plane.
According to one embodiment of the invention, obtaining a first initial velocity of the liquid to be cooled as it exits the container comprises: acquiring the weight of liquid to be cooled flowing out of a container in two adjacent sampling time intervals; the first initial velocity is determined based on the adjacent two sampling time intervals, the weight, the density of the liquid to be cooled and the cross-sectional area of the liquid to be cooled as it flows out of the container.
According to one embodiment of the invention, obtaining the weight of the liquid to be cooled flowing from the container during two adjacent sampling time intervals comprises: respectively obtaining total weights corresponding to two adjacent sampling times, wherein the total weights comprise a first weight of liquid to be cooled in a container and a second weight except the liquid to be cooled, and the second weight is a fixed value; and obtaining the weight difference of the total weight corresponding to the two adjacent sampling times to obtain the weight of the liquid to be cooled flowing out of the container in the two adjacent sampling time intervals.
According to one embodiment of the invention, determining the arrival time of the flow of the liquid to be cooled to each location point based on the first initial velocity and the displacement of the liquid to be cooled from the container and flowing to each location point comprises: determining a second initial velocity of the liquid to be cooled on the cooling inclined plane based on the first initial velocity, the inclination angle of the container when the liquid to be cooled flows out of the container and the inclination angle of the cooling inclined plane; determining the inclined plane acceleration of the liquid to be cooled on the cooling inclined plane based on the inclined plane angle; the arrival time of the flow of the liquid to be cooled to each position point is determined based on the second initial velocity, the slope acceleration, and the displacement of the flow of the liquid to be cooled to each position point.
According to one embodiment of the present invention, pre-calculating cooling temperatures for each location point based on a time-of-arrival database includes: determining a cooling time of the liquid to be cooled between every two adjacent position points based on the arrival time database; the cooling temperature of each location point is determined based on the cooling time of the liquid to be cooled between every two adjacent location points, the ramp length of the cooling ramp, and the target cooling temperature.
According to an embodiment of the present invention, when cooling the liquid to be cooled, the cooling solidification control method further includes: when the liquid to be cooled flows to each position point, acquiring the real-time temperature of the liquid to be cooled at each position point; and adjusting the cooling power of each position point according to the real-time temperature and the cooling temperature.
According to one embodiment of the invention, adjusting the cooling power of each location point according to the real-time temperature and the cooling temperature comprises: when the cooling temperature is greater than the real-time temperature, a first temperature difference value between the cooling temperature and the real-time temperature is obtained, and the cooling power of the corresponding position point is reduced or kept unchanged based on the first temperature difference value; and when the cooling temperature is smaller than the real-time temperature, acquiring a second temperature difference value between the real-time temperature and the cooling temperature, and adjusting the cooling power of the corresponding position point and/or the cooling power of at least one position point after the corresponding position point based on the second temperature difference value.
According to one embodiment of the invention, the cooling power of at least one location point after the corresponding location point is adjusted up based on the second temperature difference value, comprising: the cooling power adjustment amount of each of the at least one location point is the same as the cooling power adjustment amount of the corresponding location point, or the cooling power adjustment amount of each of the at least one location point is inversely related to the distance between each of the at least one location point and the corresponding location point.
In order to achieve the above object, a sixth aspect of the present invention provides a linear casting molding apparatus, including: a container for containing a liquid to be cooled; a bracket for supporting the container; the weight sensor is arranged below the bracket and is used for measuring the total weight of the container, the liquid to be cooled and the bracket; the cooling inclined plane comprises a plurality of independent vibrating cooling sub-inclined planes and is used for cooling liquid to be cooled; the temperature sensors are arranged on the cooling inclined plane at intervals and are used for measuring the real-time temperature of the liquid to be cooled at each position point on the cooling inclined plane; the control module is used for controlling the container to incline so that the liquid to be cooled flows out of the container and flows onto the cooling inclined plane, and establishing an arrival time database of the liquid to be cooled on the cooling inclined plane, wherein the arrival time database is a collection of arrival time of the liquid to be cooled flowing to each position point on the cooling inclined plane, and the cooling temperature of each position point is calculated in advance based on the arrival time database so as to adjust the cooling power of each position point based on the cooling temperature of each position point before the liquid to be cooled flows to each position point, so as to cool the liquid to be cooled, and when the liquid to be cooled flows to each position point, the cooling power of each position point is adjusted according to the real-time temperature of the liquid to be cooled at each position point, so that the liquid to be cooled is in a solidification state when leaving the cooling inclined plane.
According to the linear pouring molding equipment provided by the embodiment of the invention, the container is used for containing liquid to be cooled, the container is supported by the bracket, the weight sensor is arranged below the bracket, the total weight of the container, the liquid to be cooled and the bracket is measured by the weight sensor, the cooling inclined plane comprises a plurality of cooling sub inclined planes which vibrate independently, the liquid to be cooled is cooled by the cooling inclined plane, the temperature sensors are arranged on the cooling inclined plane at intervals to measure the real-time temperature of the liquid to be cooled at each position point on the cooling inclined plane, the control module controls the container to incline so that the liquid to be cooled flows out from the container and flows onto the cooling inclined plane, an arrival time database of the liquid to be cooled on the cooling inclined plane is established, the cooling power of each position point is regulated based on the cooling temperature of each position point before the liquid to be cooled flows onto each position point, and the cooling power of each position point is regulated according to the real-time temperature of the liquid to be cooled when the liquid to be cooled flows onto each position point, so that the liquid to be cooled leaves the cooling inclined plane, and the arrival time database is set when the liquid to be cooled arrives at each position point. Therefore, the linear pouring forming equipment controls the cooling power of each position point on the cooling inclined plane based on the arrival time database, so that the cooling power of each position point is adjusted, the real-time temperature of the liquid to be cooled at each position point is further combined to adjust the cooling power of each position point, and the cooling solidification effect of the liquid to be cooled is ensured.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a flow chart of a cooling solidification control method according to an embodiment of the present invention;
FIG. 2 is a schematic view of a casting machine according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating the estimation of cooling temperature according to an embodiment of the present invention;
FIG. 4 is a schematic illustration of weighing a liquid to be cooled according to an embodiment of the invention;
FIG. 5 is a schematic diagram of the velocity of a liquid to be cooled according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating acceleration of a liquid to be cooled according to an embodiment of the present invention;
FIG. 7 is a schematic diagram showing the comparison of cooling temperature and real-time temperature of a liquid to be cooled according to an embodiment of the present invention;
FIG. 8 is a flow chart of a method of cooling solidification control according to an embodiment of the present invention;
fig. 9 is a block schematic diagram of a straight pouring molding apparatus according to an embodiment of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
The cooling solidification control method and the straight casting molding apparatus according to the embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a flowchart of a cooling solidification control method according to an embodiment of the present invention.
As shown in fig. 1, the cooling solidification control method according to the embodiment of the present invention may include:
s1, establishing an arrival time database of liquid to be cooled on a cooling inclined plane, wherein the arrival time database is a collection of arrival time of the liquid to be cooled flowing to each position point on the cooling inclined plane;
s2, pre-calculating cooling temperatures of all the position points based on an arrival time database;
and S3, before the liquid to be cooled flows to each position point, adjusting the cooling power of each position point on the cooling inclined plane based on the cooling temperature of each position point so as to cool the liquid to be cooled, so that the liquid to be cooled is in a solidification state when leaving the cooling inclined plane.
Specifically, the liquid to be cooled is a melt in which a cooling solidification operation needs to be performed, such as iron alloy and industrial silicon in which the liquid to be cooled is in a liquid state. The arrival time database of the liquid to be cooled on the cooling slope is a data set of arrival time of the liquid to be cooled flowing to each position point on the cooling slope.
Taking the casting machine as shown in fig. 2 as an example, the cooling solidification control method is applied to the casting machine, the liquid to be cooled is contained in the container 1, the container 1 is placed at the upper end of the cooling inclined plane 2, the container 1 is controlled to incline at a certain angle to enable the liquid to be cooled in the container to flow out, and the liquid flows onto the cooling inclined plane 2 and flows along the cooling inclined plane 2. The cooling inclined plane 2 is provided with a cooling liquid pipeline, and in the flowing process of the liquid to be cooled along the cooling inclined plane 2, the cooling liquid flowing in the cooling liquid pipeline absorbs the heat of the liquid to be cooled, namely, performs heat exchange, so that the temperature of the liquid to be cooled is gradually reduced, and the liquid to be cooled is cooled. Therefore, the heat of the liquid to be cooled is absorbed through the cooling liquid, and the influence on environmental heat radiation is reduced.
During pouring of the liquid to be cooled, the arrival time of the liquid to be cooled flowing out of the container 1 and to each position point on the cooling ramp 2 is calculated to build up a database of arrival times of the liquid to be cooled on the cooling ramp 2. For example, the arrival time of the liquid to be cooled from the container 1 to each position point on the cooling ramp 2 may be calculated based on parameters such as the inclination angle of the container 1, the weight of the liquid to be cooled in the container 1, the distance between each position point and the container 1, etc., to determine an arrival time database of the liquid to be cooled on the cooling ramp 2; the mapping relation between the corresponding parameters and the arrival time of the liquid to be cooled flowing out of the container 1 and flowing to each position point on the cooling inclined plane 2 can be calibrated in advance based on the test, and the mapping relation is stored in a table form, wherein the corresponding parameters can comprise the inclination angle of the container 1, the weight of the liquid to be cooled in the container 1 and the like, and the arrival time database of each position point on the cooling inclined plane 2 of the liquid to be cooled is determined based on the table call.
Taking the corresponding parameters as the weight of the liquid to be cooled in the container 1 and the inclination angle of the container 1 as examples, the relative positions of the container 1 and the cooling inclined plane 2 are unchanged, and the liquid to be cooled contained in the container is poured onto the cooling inclined plane 2 by controlling the inclination angle of the container 1. In the pouring process of the liquid to be cooled, the weight of the liquid to be cooled in the container 1 is obtained through the weight sensor, the pouring angle of the container 1 is obtained through the angle measuring sensor, and then the arrival time of the liquid to be cooled flowing out of the container 1 and flowing to each position point on the cooling inclined plane 2 is determined according to the weight of the liquid to be cooled and the table look-up table of the pouring angle. Wherein each position point on the cooling ramp 2 can be calibrated in advance. For example, as shown in fig. 2, each position point of the cooling ramp 2 is represented by a position 11, a position 12, a position 13, … …, a position 91, a position 92, and a position 93, and the arrival times of the corresponding position points are represented by tS11, tS12, tS13, tS21 … … tS11, tS91, tS92, tS93, respectively, to create a database of the arrival times of the liquid to be cooled on the cooling ramp.
The cooling power of each position point on the cooling inclined plane 2 can be adjusted based on the arrival time database, for example, a relation table of the arrival time database and the cooling power of each position point can be established in advance, the cooling power of each position point is obtained according to the arrival time database, and the cooling units corresponding to each position point are adjusted according to the cooling control parameters corresponding to the cooling power, so that the liquid to be cooled is in a solidification state when leaving the cooling inclined plane 2, and the cooling effect is ensured. The cooling control parameter may be a cooling liquid flow rate, a cooling liquid temperature, or the like.
According to one embodiment of the present application, controlling cooling power for each location point on a cooling ramp based on a time-of-arrival database includes: pre-calculating cooling temperatures of the position points based on the arrival time database; before the liquid to be cooled flows to each position point, the cooling power of each position point is adjusted based on the cooling temperature of each position point.
The casting machine shown in fig. 2 is continuously used as an example of the cooling solidification control method.
First, the cooling temperatures of the respective position points are calculated in advance from the arrival time database and estimated, and the cooling temperatures of the respective position points are represented by T11, T12, T13, … …, T91, T92, and T93, respectively. Specifically, a mapping table between the arrival time of each location point and the cooling temperature of each location point may be previously established, a corresponding cooling temperature may be determined based on the calculated arrival time lookup table of each location point, and the cooling temperature of each location point determined according to the arrival time may be as shown in fig. 3.
The cooling power of each position point is adjusted according to the cooling temperature of each position point. For example, a relation table of cooling control parameters and cooling temperatures can be pre-established, corresponding cooling control parameters can be obtained according to a table look-up of the determined cooling temperatures, and cooling units corresponding to all the position points are controlled according to the cooling control parameters, so that the cooling power of all the position points can be adjusted in advance, the cooling temperature can be reduced when the cooling liquid flows through all the position points, and the cooling effect is ensured.
Therefore, the embodiment can realize the advanced adjustment of the cooling power of each position point based on the estimated operation before the liquid to be cooled flows to each position point, and ensure the cooling effect of each position point, the cooling power of the liquid to be cooled and the cooling quality.
In one embodiment of the present invention, adjusting the cooling power of each location point based on the cooling temperature includes: the flow rate of the cooling liquid or the temperature of the cooling liquid at each position point is adjusted based on the cooling temperature to adjust the cooling power at each position point.
Under the condition that the temperature of the cooling liquid is unchanged, the larger the flow rate of the cooling liquid is, the higher the cooling power is; the smaller the flow of the cooling liquid, the lower the cooling power. Under the condition that the flow rate of the cooling liquid is unchanged, the lower the temperature of the cooling liquid is, the higher the cooling power is; the higher the cooling fluid temperature, the lower the cooling power. The flow rate of the cooling liquid can be adjusted by controlling the opening of the flow valve, and the temperature of the cooling liquid can be adjusted based on the temperature control module, such as a heating unit, without limitation.
Specifically, taking an example of adjusting the cooling power of each position point by adjusting the flow rate of the cooling liquid at each position point, the flow valves are provided for each position point. When the cooling solidification control is executed, firstly, the flow valves of all the position points are controlled according to the preset valve opening, then, the target valve opening of each position point is determined based on the estimated cooling temperature of the corresponding position point in a table look-up mode, and the flow valve opening of the corresponding position point is adjusted to the target valve opening, so that the flow of the cooling liquid of the corresponding position point is adjusted, and the cooling power of the corresponding position point is adjusted.
In one embodiment of the invention, establishing a database of arrival times of liquid to be cooled on a cooling ramp comprises: acquiring a first initial speed of the liquid to be cooled when flowing out of the container; and determining the arrival time of the liquid to be cooled flowing to each position point based on the first initial speed and the displacement of the liquid to be cooled flowing out of the container and flowing to each position point, and obtaining an arrival time database of the liquid to be cooled on the cooling inclined plane.
Specifically, a table of the relation between the weight of the liquid to be cooled in the container, the pouring angle of the container and the speed of the liquid to be cooled flowing out of the container may be established in advance, and during the pouring process of the liquid to be cooled, the corresponding speed, i.e., the first initial speed, is determined based on the weight of the liquid to be cooled in the container and the pouring angle of the container obtained by real-time detection.
The displacement of the liquid to be cooled flowing out of the container to each position point can be pre-measured and stored based on the position of the position point preset by the cooling inclined plane, and the arrival time of the liquid to be cooled flowing to each position point is obtained by combining the first initial speed and the displacement of the liquid to be cooled flowing out of the container and flowing to each position point. For example: the corresponding relation table of the first initial speed, the displacement and the arrival time can be established in advance, the arrival time of each position point can be obtained by looking up a table based on the first initial speed determined in real time, in addition, the real-time calculation can be performed based on a displacement formula, and the method is not limited.
In one embodiment of the invention, obtaining a first initial velocity of the liquid to be cooled as it exits the container comprises: acquiring the weight of liquid to be cooled flowing out of a container in two adjacent sampling time intervals; the first initial velocity is determined based on the adjacent two sampling time intervals, the weight, the density of the liquid to be cooled and the cross-sectional area of the liquid to be cooled as it flows out of the container.
Specifically, in the process that the container is filled with the liquid to be cooled and pouring of the liquid to be cooled in the container is completed, the weight m of the container is acquired in real time according to the sampling time interval delta t through the combination of a weighing sensor and a high-speed data acquisition and analysis module, and weight data are acquired according to the time sequence: (m 1, t 1), (m 2, t 2), (m 3, t 3), (m 4, t 4) … (mn-1, tn-1), (mn, tn), and saved to a data real-time analysis database. Where the sampling time t may be accurate to the millisecond level.
In the pouring process of the liquid to be cooled, the weight difference value obtained by two adjacent sampling times is obtained to obtain the weight of the liquid to be cooled flowing out of the container in two adjacent sampling time intervals, and taking the two adjacent sampling times as t1 and t2 as an example, the weight of the liquid to be cooled flowing out is m1-m2 between t1 and t 2. The first initial velocity is calculated from the adjacent two sampling intervals Δt, the weight (m 1-m 2), the density of the liquid to be cooled and the sectional area of the liquid to be cooled as it flows out of the container.
According to one embodiment of the invention, obtaining the weight of the liquid to be cooled flowing from the container during two adjacent sampling time intervals comprises: respectively obtaining total weights corresponding to two adjacent sampling times, wherein the total weights comprise a first weight of liquid to be cooled in a container and a second weight except the liquid to be cooled, and the second weight is a fixed value; and obtaining the weight difference of the total weight corresponding to the two adjacent sampling times to obtain the weight of the liquid to be cooled flowing out of the container in the two adjacent sampling time intervals.
Specifically, taking fig. 4 as an example, the container 1 is supported by the bracket 3 mounted on the fixed base 4, and the inclination angle of the container 1 is detected in real time by the angle sensor 6. Because the container 1 is always in a moving state during the dumping process, the direct weight measurement is inconvenient, the gravity center of the weighing is also continuously changed, and the weighing sensor 5 is arranged at the bottom of the fixed base 4 for more convenient and reliable measurement.
At this time, the total weight measured by the load cell 5 includes: (1) the weight of the empty container, (2) the weight of the liquid to be cooled in the container, (3) the weight of the stationary base, and (4) the weight of the rack. Wherein (2) is a first weight and (1), (3) and (4) are second weights.
During pouring, except that (2) is changed in real time, (1), (3) and (4) are all fixed. Therefore, when the weight difference of the total weight corresponding to the two sampling times is obtained, the obtained weight difference is only the first weight corresponding to the two sampling times, namely the weight difference of the liquid to be cooled, so that the weight of the liquid to be cooled flowing out of the container in the adjacent two sampling time intervals is determined.
The weight of the empty container 1, the weight of the liquid to be cooled in the container 1, the weight of the fixed base 4 and the weight of the bracket 3 obtained by the weighing sensor 5 are taken as the total weight, and the total weight and the sampling time are stored and recorded in the data real-time analysis database so as to calculate the weight of the liquid to be cooled flowing out of the container in two adjacent sampling time intervals, thereby facilitating and ensuring the detection.
In one embodiment of the invention, determining the first initial velocity based on the adjacent two sampling time intervals, the weight, the density of the liquid to be cooled, and the cross-sectional area of the liquid to be cooled as it flows from the container comprises: and obtaining the ratio of the weight to the product of the density, the gravity acceleration, the adjacent two sampling time intervals and the cross section area to obtain the first initial speed.
Specifically, the calculation formula of the first initial velocity of the liquid to be cooled is:
（1）
wherein,for the first initial speed, Δq is the volume of the liquid to be cooled flowing out of the container in two adjacent sampling time intervals, a is the cross-sectional area of the liquid to be cooled flowing out of the container, and Δt is the two adjacent sampling time intervals.
According to the density calculation formula, the volume calculation formula of the liquid to be cooled flowing out of the container in two adjacent sampling time intervals can be determined as follows:
（2）
wherein DeltaQ is the volume of the liquid to be cooled flowing out of the container in two adjacent sampling time intervals, deltam is the weight of the liquid to be cooled flowing out of the container in two adjacent sampling time intervals, g is the gravitational acceleration, and ρ is the density of the liquid to be cooled.
Substituting the formula (2) into the formula (1) to obtain a calculation formula of the first initial speed, wherein the calculation formula is as follows:
（3）
wherein,for the first initial speed, deltam is the weight of the liquid to be cooled flowing out of the container in two adjacent sampling time intervals, g is the gravity acceleration, ρ is the density of the liquid to be cooled, A is the sectional area of the liquid to be cooled flowing out of the container, deltat is the two adjacent sampling time intervals, n is the sampling time number, and ρ is the weight of the liquid to be cooled in the container>Total weight taken for the nth sampling time, +. >Total weight taken for the n-1 th sampling time, < >>For the nth sampling time, +.>For the n-1 th sampling time.
According to one embodiment of the invention, determining the arrival time of the flow of the liquid to be cooled to each location point based on the first initial velocity and the displacement of the liquid to be cooled from the container and flowing to each location point comprises: determining a second initial velocity of the liquid to be cooled on the cooling inclined plane based on the first initial velocity, the inclination angle of the container when the liquid to be cooled flows out of the container and the inclination angle of the cooling inclined plane; determining the inclined plane acceleration of the liquid to be cooled on the cooling inclined plane based on the inclined plane angle; the arrival time of the flow of the liquid to be cooled to each position point is determined based on the second initial velocity, the slope acceleration, and the displacement of the flow of the liquid to be cooled to each position point.
Specifically, as shown in connection with FIG. 5, the first initial velocity V 1 Is related to the inclination angle alpha of the container 1 when the liquid to be cooled flows out of the container 1, and the first initial velocity V 1 In combination with the inclination angle alpha of the container when the liquid to be cooled flows out of the container 1 and the inclination angle theta of the cooling ramp 2, a second initial velocity V of the liquid to be cooled along a direction parallel to the cooling ramp 2 is determined 2 . The method can be based on test measurement or real-time calculation and acquisition by establishing a relational expression.
Referring to fig. 6, during pouring of the liquid to be cooled, there is a gravitational acceleration g under the action of gravity when the liquid to be cooled flows out of the container 1, and the gravitational acceleration g may be converted into a slope acceleration a of the liquid to be cooled on the cooling slope 2 according to the slope angle θ.
Further, according to the second initial speed, the inclined plane acceleration and the displacement of the liquid to be cooled flowing to each position point, the arrival time of the liquid to be cooled flowing to each position point can be calculated by combining a displacement formula.
The calculation process of the second initial velocity will be described in detail below.
In one embodiment of the invention, determining the second initial velocity of the liquid to be cooled at the cooling ramp based on the first initial velocity, the angle of inclination of the container as the liquid to be cooled flows from the container, and the angle of inclination of the cooling ramp comprises: acquiring a cosine value of an angle difference between the inclination angle and the inclined plane angle; and obtaining the product of the cosine value of the angle difference value and the first initial speed to obtain the second initial speed.
That is, the first initial velocity is scaled to a second initial velocity along the cooling ramp by the following formula:
（4）
Wherein V is 2 At a second initial speed, V 1 For the first initial speed, alpha is the inclination angle, theta is the inclination angle,is the cosine of the angle difference between the tilt angle and the bevel angle.
In one embodiment of the invention, determining the ramp acceleration of the liquid to be cooled at the cooling ramp based on the ramp angle comprises: and obtaining the product of the sine value of the inclined plane angle and the gravity acceleration to obtain the inclined plane acceleration.
Namely, the calculation formula of the inclined plane acceleration is as follows:
（5）
wherein a is inclined plane acceleration, g is gravity acceleration, θ is inclined plane angle,is a sine value of the bevel angle.
According to one embodiment of the present invention, determining the arrival time of the flow of the liquid to be cooled to each location point based on the second initial velocity, the ramp acceleration, and the displacement of the flow of the liquid to be cooled to each location point includes: and determining the arrival time of the liquid to be cooled flowing to each position point based on the displacement calculation formula, the second initial speed, the inclined plane acceleration and the displacement of the liquid to be cooled flowing to each position point.
Specifically, based on the initial velocity displacement formula, the displacement of the liquid to be cooled flowing to each position point can be expressed by the following formula:
（6）
wherein,for displacement of the liquid to be cooled flowing to the ith position point, V 2 For the second initial speed, a is the ramp acceleration, +.>Is the arrival time of the flow of the liquid to be cooled to the i-th position point.
From this, the second initial velocity calculated based on the formula (4), the slope acceleration calculated based on the formula (5), and the displacement of the liquid to be cooled flowing to the corresponding position point are substituted into the formula (6) to calculate the arrival time of the liquid to be cooled flowing to the corresponding position point.
Further, based on the formulas (4), (5) and (6), it is possible to obtain the calculation formulas of the arrival time of the liquid to be cooled flowing to the corresponding position points:
（7）
wherein,for the arrival time of the flow of the liquid to be cooled to the ith position point, V 1 For the first initial speed, α is the angle of inclination, θ is the angle of inclination, ++>Is the cosine of the angle difference between the inclination angle and the slope angle, g is the gravitational acceleration,/is the angle difference between the inclination angle and the slope angle>Is a sine value of the bevel angle, +.>Is the displacement of the liquid to be cooled flowing to the i-th position point.
Therefore, the first initial speed, the inclination angle, the inclined plane angle and the displacement of the liquid to be cooled flowing to each position point can be directly substituted into the formula (7), and the arrival time of the liquid to be cooled flowing to each position point can be calculated.
In addition, the displacement of the liquid to be cooled flowing to each position point can be expressed by a final speed displacement formula:
（8）
wherein,for displacement of the liquid to be cooled flowing to the ith position point, V 2 For the second initial speed, a is the ramp acceleration, +.>Is the velocity of the cooling ramp as the liquid to be cooled flows to the i-th point.
Based on a speed calculation formula, the speed calculation formula of the cooling inclined plane when the liquid to be cooled flows to the ith position point is as follows:
（9）
wherein,for the speed of the liquid to be cooled at the cooling ramp when flowing to the ith point, a is the ramp acceleration, +.>Is the arrival time of the flow of the liquid to be cooled to the i-th position point.
Thus, in combination with formulas (5), (8) and (9), the arrival time of the liquid to be cooled flowing to each position point can also be calculated from the second initial velocity, the slope acceleration and the displacement of the liquid to be cooled flowing to each position point.
According to one embodiment of the present invention, pre-calculating cooling temperatures for each location point based on a time-of-arrival database includes: determining a cooling time of the liquid to be cooled between every two adjacent position points based on the arrival time database; the cooling temperature of each location point is determined based on the cooling time of the liquid to be cooled between every two adjacent location points, the ramp length of the cooling ramp, and the target cooling temperature. The target cooling temperature is the real-time temperature of the liquid to be cooled when the liquid flows out of the cooling inclined plane, namely the actual temperature of the liquid to be cooled.
Specifically, with the arrival time of the liquid to be cooled flowing out from the container to each position point (position 11, position 12, position 13 … …, position 91, position 92, position 93) of the cooling slope being tS11, tS12, tS13, tS21 … … tS11, tS91, tS92, tS93, the cooling time between position 11 and position 12 is tS12-tS11, the cooling time between position 12 and position 13 is tS13-tS12, and so on, the cooling time between each adjacent two position points can be determined.
And according to the calculated cooling time between every two adjacent position points, dividing the cooling heat between every two adjacent position points by combining the length of the inclined plane of the cooling inclined plane and the target cooling temperature. Specifically, the corresponding relation between the cooling time, the length of the inclined plane and the target cooling temperature and the cooling amount between every two adjacent position points can be preset based on the test, and in the application process, the cooling amount between every two adjacent position points is determined based on the actually determined cooling time, the actually determined inclined plane length and the actually determined target cooling temperature, so that the cooling temperature of each position point is estimated. In addition, the correspondence between the cooling time and the cooling amount may be preset, the cooling amount between every two adjacent position points may be determined based on the cooling time between every two adjacent position points, and the cooling amount between every two adjacent position points may be further adjusted by combining the length of the inclined plane and the target cooling temperature. The cooling amount may be expressed as a cooling temperature of the liquid to be cooled.
It can be understood that, in the case that the cooling liquid and the cooling device at each position point are the same, the longer the cooling time is, the slower the flowing speed of the liquid to be cooled is, the longer the residence time of the liquid to be cooled between the two adjacent position points is, and the better the cooling effect of the liquid to be cooled at the corresponding position point is; and the shorter the cooling time is, the faster the flowing speed of the liquid to be cooled is, the shorter the residence time of the liquid to be cooled between the two adjacent position points is, and the weaker the cooling effect of the liquid to be cooled is at the corresponding position points. Therefore, the cooling power can be distributed to the position points with longer cooling time, so that the cooling quantity between the adjacent position points is improved, and the cooling effect of the liquid to be cooled is ensured.
Therefore, the cooling temperature of each position point on the cooling inclined plane is calculated, so that the pre-adjustment of the cooling power of each position point is realized, and the cooling solidification effect is ensured.
In one embodiment of the present invention, when cooling the liquid to be cooled, the cooling solidification control method further includes: when the liquid to be cooled flows to each position point, acquiring the real-time temperature of the liquid to be cooled at each position point; and adjusting the cooling power of each position point according to the real-time temperature and the cooling temperature.
Specifically, the cooling inclined plane is provided with infrared temperature measuring sensors corresponding to the position points (position 11, position 12, position 13, … … and position 93), and the real-time temperature of the liquid to be cooled is measured by the infrared temperature measuring sensors of the position points and is respectively represented by T1r1, T1r2, T1r3, … … and T9r 3. The real-time temperatures T1r1, T1r2, T1r3, … … and T9r3 of the liquid to be cooled at each position point obtained in real time are compared with the estimated cooling temperatures T11, T12, T13, … … and T93 of the liquid to be cooled at each position point in a one-to-one correspondence manner, so that the cooling power of each position point is regulated based on the real-time temperatures and the cooling temperatures, the rapid response regulation is realized, and the cooling effect is ensured. For example, when the real-time temperature is greater than the cooling temperature, the cooling power of the corresponding position point is increased; and when the real-time temperature is smaller than the cooling temperature, the cooling power of the corresponding position point is reduced.
It is understood that during the movement of the liquid to be cooled along the cooling ramp, the liquid to be cooled will gradually change from liquid to solid based on heat exchange, and thus the real-time temperature of the liquid to be cooled includes, but is not limited to, the real-time temperature in the liquid state, the real-time temperature in the solid state, and the like.
The embodiment dynamically adjusts the cooling power of each position point in real time based on the acquired real-time temperature and the obtained cooling temperature in advance, as shown in fig. 7, so as to achieve dynamic heat balance and ensure the cooling solidification effect of the liquid to be cooled.
In one embodiment of the invention, adjusting the cooling power of each location point according to the real-time temperature and the cooling temperature includes: when the cooling temperature is higher than the real-time temperature, the cooling power of the corresponding position point is reduced or kept unchanged; and when the cooling temperature is smaller than the real-time temperature, the cooling power of the corresponding position point and/or the cooling power of at least one position point after the corresponding position point are/is increased.
Taking the position 11 as an example, if the cooling temperature T11 is greater than the real-time temperature T1r1, it is explained that the cooling effect of the liquid to be cooled at the position 11 is better, the cooling amount is sufficient, the cooling power of the position 11 can be properly adjusted, for example, the cooling liquid flow rate at the position 11 can be reduced, and the cooling power of the position 11 can be not adjusted.
If the cooling temperature T11 is equal to the real-time temperature T1r1, it indicates that the cooling power of the location 11 reaches the preset cooling requirement, and the cooling power of the location 11 can be kept unchanged.
If the cooling temperature T11 is smaller than the real-time temperature T1r1, it is explained that the cooling effect of the position 11 on the liquid to be cooled is poor, and the cooling power of the position 11 can be appropriately increased, for example, the flow rate of the liquid to be cooled at the position 11 is increased and the temperature of the liquid to be cooled is decreased. In consideration of the time required for cooling the liquid to be cooled, the liquid to be cooled also always flows, so that the cooling power of the position 11 is increased, and the cooling power of the position 12 is also increased at the same time, so that the cooling temperature T12 of the position 12 is ensured to be greater than or equal to the real-time temperature T1r2, and the reliable operation of the whole cooling process is ensured.
It will be appreciated that in the case where the cooling temperature T11 is smaller than the real-time temperature T1r1, the cooling power of the position 11 may not be adjusted, and only the cooling power of the position 12 may be increased to perform the advance control. In addition, when the cooling temperature T11 is smaller than the real-time temperature T1r1, the cooling power of the position points such as the position 13 and the position 14 may be adjusted at the same time to ensure the cooling effect, and the control strategy may be specifically set based on the actual situation, which is not limited herein.
According to one embodiment of the invention, reducing the cooling power of the corresponding location point comprises: acquiring a first temperature difference between the cooling temperature and the real-time temperature; the cooling power of the corresponding location point is reduced based on the first temperature difference.
Specifically, taking the cooling power of each position point as an example of adjusting the cooling liquid flow of each position point, a relation table of the first temperature difference value and the first adjusting flow can be established in advance, and the corresponding first adjusting flow can be determined by looking up the table based on the first temperature difference value obtained in real time, so that the cooling liquid flow at the corresponding position point is adjusted to be smaller by the first adjusting flow, and the cooling operation is continuously performed according to the adjusted cooling liquid flow. It will be appreciated that the greater the first temperature difference, the greater the first regulated flow; the smaller the first temperature difference, the smaller the first regulated flow.
Besides the above-mentioned cooling power adjustment based on the first temperature difference, the functional relation between the first temperature difference and the adjustment parameter may be established in advance, the first temperature difference is substituted into the objective functional relation to obtain a calculation result, and the cooling power of the corresponding position point is adjusted according to the calculation result, where the calculation result may be a cooling liquid flow adjustment amount, a cooling liquid temperature adjustment amount, or the like, and the present invention is not limited thereto.
According to one embodiment of the invention, the step of increasing the cooling power of the corresponding location point comprises: acquiring a second temperature difference between the real-time temperature and the cooling temperature; and increasing the cooling power of the corresponding position point based on the second temperature difference value.
Specifically, taking the cooling power of each position point as an example of adjusting the cooling liquid flow rate of each position point, a relation table of a second temperature difference value and a second adjusting flow rate may be pre-established, and the corresponding second adjusting flow rate may be determined by looking up a table based on the second temperature difference value obtained in real time, so that the cooling liquid flow rate at the corresponding position point is adjusted by the second adjusting flow rate, and the cooling operation is continuously performed according to the adjusted cooling liquid flow rate. It will be appreciated that the greater the second temperature difference, the greater the second regulated flow; the smaller the second temperature difference, the smaller the second regulated flow.
Besides the above-mentioned cooling power of the corresponding position point is enlarged by looking up the table based on the second temperature difference, a function formula between the second temperature difference and the adjustment parameter may be established in advance, and the cooling power of the corresponding position point is enlarged by calculating the result.
According to one embodiment of the invention, the cooling power of at least one location point after the corresponding location point is increased, comprising: increasing the cooling power of at least one location point after the corresponding location point based on the second temperature difference; the cooling power adjustment amount of each position point in the at least one position point is the same as the cooling power adjustment amount of the corresponding position point, or the cooling power adjustment amount of each position point in the at least one position point is inversely related to the distance between each position point in the at least one position point and the corresponding position point.
Specifically, taking an example of increasing the cooling power of the locations 12 and 13 when the cooling temperature T11 at the location 11 is smaller than the real-time temperature T1r1, first, a second temperature difference between the real-time temperature T1r1 and the cooling temperature T11 is obtained, and the cooling power of the locations 12 and 13 is adjusted according to the second temperature difference.
Since the velocity of the liquid to be cooled on the cooling ramp gradually increases with increasing displacement distance during the operation of the liquid to be cooled on the cooling ramp, i.e. the velocity of the liquid to be cooled flowing through the location 12 is greater than the velocity of the liquid to be cooled flowing through the location 13, the residence time of the liquid to be cooled at the location 12 is greater than the residence time of the liquid to be cooled at the location 13, and a better heat absorption effect can be achieved at the location 12 relative to the location 13 under the same cooling equipment and cooling control parameters. Therefore, to ensure the cooling effect, the cooling power adjustment amount of the position 12 may be larger than the cooling power adjustment amount of the position 13.
According to the embodiment, based on the movement rule of the liquid to be cooled, the setting of the cooling power adjustment quantity is performed by combining the distance between the position point and the position point where the cooling temperature is smaller than the real-time temperature, so that the cooling effect is ensured.
According to the cooling solidification control method disclosed by the application, the mutual balance control of each variable in the cooling solidification process can be effectively realized, and meanwhile, the cooling solidification time of liquid to be cooled can be reduced, so that the whole production period is shortened, in addition, the faster cooling speed means that the next process can be completed more quickly, and the production efficiency is improved.
As a specific embodiment of the present application, as shown in fig. 8, the cooling solidification control method may include the steps of:
s801, the total weight corresponding to two adjacent sampling times is obtained.
S802, calculating and obtaining the weight delta m of the liquid to be cooled flowing out of the container in two adjacent sampling time intervals;
s803, calculating a first initial speed:
s804, calculating a second initial speed:
s805, calculating a ramp acceleration:
s806, based on the formulaThe arrival time of the flow of the liquid to be cooled to each location point is determined.
S807, determining the cooling time of the liquid to be cooled between every two adjacent position points according to the arrival time.
S808, determining the cooling temperature of each position point according to the cooling time of the liquid to be cooled between every two adjacent position points, the inclined plane length of the cooling inclined plane and the target cooling temperature.
S809, before the liquid to be cooled flows to each position point, the cooling power of each position point is adjusted based on the cooling temperature of each position point.
S810, acquiring real-time temperature of the liquid to be cooled at each position point when the liquid to be cooled flows to each position point.
S811, judging whether the cooling temperature is larger than the real-time temperature. If yes, go to step S812; if not, go to step S814.
S812, a first temperature difference between the cooling temperature and the real-time temperature is obtained.
S813, cooling power of the corresponding position point is reduced according to the first temperature difference value.
S814, judging whether the cooling temperature is less than the real-time temperature. If yes, go to step S815; if not, go to step S817.
S815, a second temperature difference between the real-time temperature and the cooling temperature is obtained.
And S816, adjusting the cooling power of the corresponding position point based on the second temperature difference value.
S817, the cooling power of the corresponding position point is kept unchanged.
In the pouring process of the liquid to be cooled, the embodiment firstly calculates the cooling temperature of each position point, adjusts the cooling power of each position point in advance based on the cooling temperature of each position point, ensures the cooling solidification effect of the liquid to be cooled, and simultaneously adjusts the cooling power of the corresponding position point in time based on the cooling temperature and the acquired real-time temperature, so that the cooling power is higher, the control effect is better, and the method has the following beneficial effects:
1. Increase production capacity: the control method can cool and solidify the liquid to be cooled rapidly, thereby shortening the production period and increasing the available time of the equipment. This means that more production tasks can be completed in the same time, improving the production capacity.
2. Reducing equipment downtime: in industrial production, equipment downtime is an important indicator of production efficiency. The cooling of the liquid to be cooled can reduce the downtime of the equipment, thereby improving the utilization rate and the production efficiency of the equipment.
3. The product quality is improved: the control of the cooling solidification of the liquid to be cooled can help ensure the quality and consistency of the product. Through proper cooling solidification measures, the solidification process of the liquid to be cooled can be controlled, defects and deformation are avoided, and the strength, hardness and appearance of the product are improved.
4. Optimizing process parameters: the cooling solidification control of the liquid to be cooled can also help to optimize the process parameters and further improve the production efficiency. By controlling the cooling speed and temperature, the solidification speed, grain structure and product performance of the liquid to be cooled can be adjusted, thereby achieving the best production effect.
5. The energy consumption is reduced: the cooling of the liquid to be cooled can reduce the energy consumption by reducing the time and energy consumption of the heating device. This helps reduce production costs and contributes to sustainable development.
In summary, according to the cooling solidification control method of the embodiment of the present invention, an arrival time database of a liquid to be cooled on a cooling slope is established, where the arrival time database is a set of arrival times of the liquid to be cooled flowing to each position point on the cooling slope; pre-calculating cooling temperatures of the position points based on the arrival time database; before the liquid to be cooled flows to each position point, the cooling power of each position point is adjusted based on the cooling temperature of each position point so as to cool the liquid to be cooled, so that the liquid to be cooled is in a solidification state when leaving the cooling inclined plane. Therefore, the method adjusts the cooling power of each position point on the cooling inclined plane based on the arrival time database, and ensures the cooling solidification effect of the cooling inclined plane on the liquid to be cooled.
Corresponding to the embodiment, the invention further provides a straight pouring molding device.
As shown in fig. 9, the straight casting molding apparatus 100 of the embodiment of the present invention includes: container 10, bracket 20, weight sensor 30, cooling ramp 40, a plurality of temperature sensors 50, and control module 60.
Wherein the container 10 is adapted to contain a liquid to be cooled. The stand 20 serves to support the container 10. A weight sensor 30 is provided below the holder 20 for measuring the total weight of the container 10, the liquid to be cooled and the holder 20. The cooling ramp 40 comprises a plurality of independently oscillating cooling sub-ramps 41, the cooling ramp 40 being adapted to cool the liquid to be cooled. A plurality of temperature sensors 50 are disposed on the cooling ramp 40 at intervals, and the plurality of temperature sensors 50 are used for measuring the real-time temperature of the liquid to be cooled at each position point on the cooling ramp 40. The control module 60 is configured to control the container 10 to tilt so that the liquid to be cooled flows out of the container 10 and onto the cooling ramp 40, and build a time-of-arrival database of the liquid to be cooled on the cooling ramp 40, wherein the time-of-arrival database is a set of arrival times of the liquid to be cooled flowing to each position point on the cooling ramp 40, and calculate cooling temperatures of each position point in advance based on the time-of-arrival database, so as to adjust cooling power of each position point based on the cooling temperatures of each position point before the liquid to be cooled flows to each position point, so as to cool the liquid to be cooled, and adjust the cooling power of each position point according to the real-time temperature of the liquid to be cooled at each position point when the liquid to be cooled flows to each position point, so that the liquid to be cooled is in a solidified state when leaving the cooling ramp 40.
The liquid to be cooled is a melt in which a cooling solidification operation needs to be performed, such as an iron alloy and industrial silicon in which the liquid to be cooled is in a liquid state. The specific connection of the container 10, the bracket 20 and the weight sensor 30 can be shown with reference to fig. 4, wherein fig. 4 is an implementation manner of the present application, the container 1 in fig. 4 corresponds to the container 10 in the linear casting device 100, and the bracket 3 and the fixing base 4 form the bracket 20 in the linear casting device 100. The load cell 5 is used as the weight sensor 30 in the linear casting apparatus 100, and detailed description thereof will be omitted.
It should be noted that, for details not disclosed in the straight pouring molding apparatus according to the embodiment of the present invention, please refer to details disclosed in the cooling solidification control method according to the above embodiment of the present invention, and details are not described here again.
According to the linear pouring molding equipment provided by the embodiment of the invention, the container is used for containing liquid to be cooled, the container is supported by the bracket, the weight sensor is arranged below the bracket, the total weight of the container, the liquid to be cooled and the bracket is measured by the weight sensor, the cooling inclined plane comprises a plurality of cooling sub inclined planes which vibrate independently, the liquid to be cooled is cooled by the cooling inclined plane, the temperature sensors are arranged on the cooling inclined plane at intervals to measure the real-time temperature of the liquid to be cooled at each position point on the cooling inclined plane, the control module controls the container to incline so that the liquid to be cooled flows out from the container and flows onto the cooling inclined plane, an arrival time database of the liquid to be cooled on the cooling inclined plane is established, the arrival time database is a set of arrival time of the liquid to be cooled flowing onto each position point on the cooling inclined plane, the cooling temperature of each position point is calculated in advance based on the arrival time database, so that the cooling power of each position point is cooled based on the cooling temperature of each position point before the liquid to be cooled is flowing onto each position point, and when the liquid to be cooled flows onto each position point, the cooling power of each position point is cooled is set according to the cooling temperature of each position point to be cooled. Therefore, the linear pouring forming equipment controls the cooling power of each position point on the cooling inclined plane based on the arrival time database, so that the cooling power of each position point is adjusted, the real-time temperature of the liquid to be cooled at each position point is further combined to adjust the cooling power of each position point, and the cooling solidification effect of the liquid to be cooled is ensured.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, for example, may be considered as a ordered listing of executable instructions for implementing logical functions, and may be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). In addition, the computer readable medium may even be paper or other suitable medium on which the program is printed, as the program may be electronically captured, via, for instance, optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and then stored in a computer memory.
It is to be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.

Claims (10)

1. A method of controlling cooling solidification, the method comprising:
establishing an arrival time database of liquid to be cooled on a cooling inclined plane, wherein the arrival time database is a collection of arrival time of the liquid to be cooled flowing to each position point on the cooling inclined plane;
pre-calculating cooling temperatures of all the position points based on the arrival time database;
before the liquid to be cooled flows to each position point, the cooling power of each position point is regulated based on the cooling temperature of each position point so as to cool the liquid to be cooled, so that the liquid to be cooled is in a solidification state when leaving the cooling inclined plane.
2. The method of claim 1, wherein the creating a database of arrival times of the liquid to be cooled on the cooling ramp comprises:
acquiring a first initial speed of the liquid to be cooled when flowing out of the container;
and determining the arrival time of the liquid to be cooled flowing to each position point based on the first initial speed and the displacement of the liquid to be cooled flowing out of the container and flowing to each position point, and obtaining an arrival time database of the liquid to be cooled on a cooling inclined plane.
3. The method of claim 2, wherein said obtaining a first initial velocity of the liquid to be cooled as it flows from the container comprises:
acquiring the weight of the liquid to be cooled flowing out of the container in two adjacent sampling time intervals;
the first initial velocity is determined based on the two adjacent sampling time intervals, the weight, the density of the liquid to be cooled, and the cross-sectional area of the liquid to be cooled as it flows out of the container.
4. A method according to claim 3, wherein said taking the weight of the liquid to be cooled flowing from the container during two adjacent sampling intervals comprises:
respectively obtaining total weights corresponding to two adjacent sampling times, wherein the total weights comprise a first weight of liquid to be cooled in the container and a second weight of liquid except the liquid to be cooled, and the second weight is a fixed value;
and obtaining the weight difference of the total weight corresponding to the two adjacent sampling times to obtain the weight of the liquid to be cooled flowing out of the container in the two adjacent sampling time intervals.
5. The method of claim 2, wherein determining the arrival time of the flow of the liquid to be cooled to each location point based on the first initial velocity and the displacement of the liquid to be cooled from the vessel to each location point comprises:
Determining a second initial speed of the liquid to be cooled on the cooling inclined plane based on the first initial speed, the inclination angle of the container when the liquid to be cooled flows out from the container and the inclined plane angle of the cooling inclined plane;
determining the inclined plane acceleration of the liquid to be cooled on the cooling inclined plane based on the inclined plane angle;
and determining the arrival time of the liquid to be cooled flowing to each position point based on the second initial speed, the inclined plane acceleration and the displacement of the liquid to be cooled flowing to each position point.
6. The method of claim 1, wherein pre-calculating the cooling temperature for each location point based on the time-of-arrival database comprises:
determining the cooling time of the liquid to be cooled between every two adjacent position points based on the arrival time database;
and determining the cooling temperature of each position point based on the cooling time of the liquid to be cooled between every two adjacent position points, the inclined surface length of the cooling inclined surface and the target cooling temperature.
7. The method according to claim 1 or 6, characterized in that, when cooling the liquid to be cooled, the method further comprises:
When the liquid to be cooled flows to each position point, acquiring the real-time temperature of the liquid to be cooled at each position point;
and adjusting the cooling power of each position point according to the real-time temperature and the cooling temperature.
8. The method of claim 7, wherein said adjusting the cooling power of each location point based on said real-time temperature and said cooling temperature comprises:
when the cooling temperature is larger than the real-time temperature, acquiring a first temperature difference value between the cooling temperature and the real-time temperature, and adjusting the cooling power of the corresponding position point or keeping the cooling power of the corresponding position point unchanged based on the first temperature difference value;
and when the cooling temperature is smaller than the real-time temperature, acquiring a second temperature difference value between the real-time temperature and the cooling temperature, and adjusting the cooling power of the corresponding position point and/or adjusting the cooling power of at least one position point after the corresponding position point based on the second temperature difference value.
9. The method of claim 8, wherein said increasing the cooling power of at least one location point after the corresponding location point based on the second temperature difference value comprises:
The cooling power adjustment amount of each of the at least one location point is the same as the cooling power adjustment amount of the corresponding location point, or the cooling power adjustment amount of each of the at least one location point is inversely related to the distance between each of the at least one location point and the corresponding location point.
10. The utility model provides a straight line pouring former which characterized in that includes:
a container for containing a liquid to be cooled;
a bracket for supporting the container;
the weight sensor is arranged below the bracket and is used for measuring the total weight of the container, the liquid to be cooled and the bracket;
the cooling inclined plane comprises a plurality of independent vibrating cooling sub-inclined planes which are used for cooling the liquid to be cooled;
the temperature sensors are arranged on the cooling inclined plane at intervals and are used for measuring the real-time temperature of the liquid to be cooled at each position point on the cooling inclined plane;
the control module is used for controlling the container to incline so as to enable the liquid to be cooled to flow out of the container and flow onto the cooling inclined plane, and establishing an arrival time database of the liquid to be cooled on the cooling inclined plane, wherein the arrival time database is a set of arrival times of the liquid to be cooled flowing to each position point on the cooling inclined plane, and the cooling temperature of each position point is calculated in advance based on the arrival time database so as to adjust the cooling power of each position point based on the cooling temperature of each position point before the liquid to be cooled flows to each position point, so as to cool the liquid to be cooled, and when the liquid to be cooled flows to each position point, the cooling power of each position point is adjusted according to the real-time temperature of the liquid to be cooled at each position point, so that the liquid to be cooled is in a solidification state when leaving the cooling inclined plane.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1210482A (en) * 1996-02-02 1999-03-10 三德金属工业株式会社 Apparatus and method for producing thin solidified alloy
CN101474666A (en) * 2009-01-16 2009-07-08 重庆大学 Cooling method of continuous casting billet solidification processing temperature and quality control
CN108500228A (en) * 2017-02-27 2018-09-07 宝山钢铁股份有限公司 FLUID FLOW INSIDE CONTINUOUS SLAB CASTING MOLD control method
CN113996773A (en) * 2021-10-27 2022-02-01 北京科技大学 Dynamic diversified continuous casting cooling online control method and system
CN115971441A (en) * 2023-01-31 2023-04-18 武汉高智达连铸智能科技有限公司 Continuous casting billet surface target temperature-based dynamic water control method and system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1210482A (en) * 1996-02-02 1999-03-10 三德金属工业株式会社 Apparatus and method for producing thin solidified alloy
CN101474666A (en) * 2009-01-16 2009-07-08 重庆大学 Cooling method of continuous casting billet solidification processing temperature and quality control
CN108500228A (en) * 2017-02-27 2018-09-07 宝山钢铁股份有限公司 FLUID FLOW INSIDE CONTINUOUS SLAB CASTING MOLD control method
CN113996773A (en) * 2021-10-27 2022-02-01 北京科技大学 Dynamic diversified continuous casting cooling online control method and system
CN115971441A (en) * 2023-01-31 2023-04-18 武汉高智达连铸智能科技有限公司 Continuous casting billet surface target temperature-based dynamic water control method and system

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