CN116371948A - High-speed wire rod cooling method and slow cooling line thereof - Google Patents
High-speed wire rod cooling method and slow cooling line thereof Download PDFInfo
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- CN116371948A CN116371948A CN202310074404.4A CN202310074404A CN116371948A CN 116371948 A CN116371948 A CN 116371948A CN 202310074404 A CN202310074404 A CN 202310074404A CN 116371948 A CN116371948 A CN 116371948A
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- 238000010583 slow cooling Methods 0.000 title claims abstract description 100
- 238000001816 cooling Methods 0.000 title claims abstract description 59
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- 238000004804 winding Methods 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000009423 ventilation Methods 0.000 claims description 33
- 238000004321 preservation Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 11
- 230000001939 inductive effect Effects 0.000 claims description 10
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- 238000010586 diagram Methods 0.000 description 6
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- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B38/006—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
The invention relates to a high-speed wire cooling method and a slow cooling line thereof, and the technical scheme is characterized in that the method comprises the following steps of S1, conveying high-speed wires rolled by a high-speed rolling mill into a heat collecting drum, and collecting the high-speed wires into coils by the heat collecting drum to obtain wire coils; s2, placing the wire reel disc manufactured by the heat collecting reel on a vertical winding core frame, and sequentially transmitting the vertical winding core frame with the wire reel to a cooling transmission line; step S3, when the cooling transmission line transmits the vertical winding cores with the wire coils, the vertical winding core frame sequentially passes through a plurality of slow cooling chambers, and the indoor temperatures of the slow cooling chambers are gradually reduced from the feeding end of the cooling transmission line to the discharging end of the cooling transmission line; when the high-speed wire rod cooling device is used for cooling the high-speed wire rod, the occupied space is small, and the online continuous cooling state of the high-speed wire rod can be well controlled.
Description
Technical Field
The invention relates to the technical field of high-speed wire rod cooling devices, in particular to a high-speed wire rod cooling method and a slow cooling wire thereof.
Background
The high-speed wire rod is a wire steel material rolled by a high-speed rolling mill. In the production process of the high-speed wire rod, the material properties of the wire rod product are obtained through extrusion deformation and controlled cooling. The high-speed wire is hot-rolled and cooled, and when the metal reaches the phase transition temperature point, the metal crystalline phase structure of the material changes. The properties of the end products obtained with different cooling temperatures and cooling rates vary considerably. Therefore, when the high-speed wire rod is cooled, the high-speed wire rod is usually cooled slowly, so that the high-speed wire rod has better mechanical properties.
At present, after the high-speed wire rod is rolled on a high-speed wire rod rolling mill, the rolled high-speed wire rod is transmitted to a transmission roller bed, so that the high-speed wire rod is uniformly spread on the transmission roller bed for transmission, and then the high-speed wire rod is transmitted to a P/F wire. In the transmission process of the transmission roller bed, the high-speed wire rod is naturally cooled or the fans are arranged on two sides of the transmission roller bed to cool the high-speed wire rod in the transmission process, and in order to enable the high-speed wire rod to be slowly cooled to a phase transition temperature point, the transmission roller bed needs to be provided with a longer transmission distance (generally about 100 meters).
Because the high-speed wire rod is long in transmission distance when being cooled, and then a large field is occupied, and the high-speed wire rod is easy to receive the interference of external environment in the transmission process of the transmission roller bed, the cooling state of the high-speed wire rod is not easy to control.
Disclosure of Invention
One of the purposes of the invention is to provide a high-speed wire cooling method, which occupies small space and can well control the online continuous cooling state of the high-speed wire when cooling the high-speed wire.
The technical aim of the invention is realized by the following technical scheme:
a high-speed wire cooling method comprising the method steps of:
step S1, transmitting high-speed wires rolled by a high-speed rolling mill into a heat collecting drum, and collecting the high-speed wires into coils by the heat collecting drum to obtain wire coils;
s2, placing the wire reel disc manufactured by the heat collecting reel on a vertical winding core frame, and sequentially transmitting the vertical winding core frame with the wire reel to a cooling transmission line;
step S3, when the cooling transmission line is used for transmitting the vertical winding cores with the wire coils, the vertical winding core frame sequentially passes through the plurality of slow cooling chambers, the indoor temperature of the plurality of slow cooling chambers is gradually reduced from the feeding end of the cooling transmission line to the discharging end of the cooling transmission line, and the indoor temperature of the final slow cooling chamber is equal to the phase change temperature point of the high-speed wire.
According to the technical scheme, the high-speed wire is collected and coiled and placed on the vertical winding core frame, and is cooled through the relatively sealed slow cooling chamber, so that the occupied area of the cooling equipment can be effectively reduced on the basis of ensuring uniform cooling of the wire compared with the original air cooling mode of spreading on a transmission line; and the vertical coil core frame gradually and slowly cools down through a plurality of slow cooling chambers, so that the cooling curve of the high-speed wire rod can be well controlled, and the high-speed wire rod can be better slowly cooled.
Preferably, in step S3, the room temperature of each slow cooling chamber is controlled by controlling the flow rate of the exchange between each slow cooling chamber and the outside air in a unit time.
By the technical scheme, the slow cooling chamber is relatively closed, so that the temperature of the high-speed wire rod in the slow cooling chamber can be increased when the high-speed wire rod enters the slow cooling chamber; through carrying out gas exchange with the external world with the slow cooling room inside, and then adjust the slow cooling room and cool down, through the flow of each slow cooling room and external gas exchange in the control unit time, and then control the room temperature of each slow cooling room.
Another object of the present invention is to provide a slow cooling wire for high-speed wire, which occupies a small space when cooling the high-speed wire, and can control the cooling state of the high-speed wire well.
The technical aim of the invention is realized by the following technical scheme: the utility model provides a high-speed wire rod slow cooling line, includes a plurality of transmission roller bed that links to each other in proper order, its characterized in that: the upper part of the conveying roller bed is provided with a slow cooling gallery; the slow cooling corridor comprises a heat preservation cover, a plurality of openable doors with openable structures are arranged on the heat preservation cover along the length direction of the heat preservation cover, and the openable doors partition the inside of the heat preservation cover into a plurality of slow cooling chambers; the slow cooling chambers are respectively provided with a vent communicated with the outside, and the vent is connected with a ventilation fan; the high-speed wire slow cooling line further comprises a main control unit, and the transmission roller bed, the opening and closing door and the ventilation fan are controlled by the main control unit.
Through the technical scheme, when the high-speed wire slow cooling wire is used for cooling the high-speed wire, the high-speed wire is conveyed in a coiled form on a conveying roller bed; in the process of conveying the wire coil, the opening and closing doors of the opening and closing doors are sequentially opened, and after the wire coil enters the corresponding slow cooling chamber, the opening and closing doors are closed; when the wire rod coil enters the slow cooling chamber, the air exchange is carried out between the wire rod coil and the outside through a ventilation fan, so that the temperature inside the slow cooling chamber is controlled; the wire rod coils are cooled step by step through a relatively sealed environment, so that the occupied area of cooling equipment is effectively reduced, and the cooling process of the high-speed wire rod can be controlled more accurately.
Preferably, the opening and closing door comprises a door frame, two door bodies arranged on the door frame and an opening and closing driving unit, wherein the opening and closing driving unit is used for driving the door bodies to slide along the direction of the door frame so as to control the opening and closing of the opening and closing door; the opening and closing driving unit is controlled by the main control unit.
Through the technical scheme, the opening and closing door is arranged in a split mode, the action stroke is short, the response is rapid, and then the temperature interference between adjacent slow cooling chambers can be reduced when the opening and closing door opens and closes.
Preferably, an outlet end of the slow cooling chamber is provided with an inductive switch for detecting the position of the high-speed wire coil, and the inductive switch is controlled by the main control unit; when the inductive switch detects an object signal, a detection signal is sent to the main control unit, and the main control unit controls the opening and closing door at the outlet end of the current slow cooling chamber to be opened and closed in a delay manner.
According to the technical scheme, when the induction switch detects an object signal in the transmission process of the wire coil, a detection signal is sent to the main control unit, and the main control unit controls the opening and closing door at the outlet end of the current slow cooling chamber to be opened, so that the wire coil enters the next slow cooling chamber; and after the delay is set, the opening and closing door is closed, so that the temperature interference among the slow cooling chambers is reduced.
Preferably, the inlet end of the slow cooling chamber is provided with a temperature sensor for detecting the temperature of the high-speed wire rod; the temperature sensor is used for detecting the temperature of the wire coil and sending a temperature detection signal to the main control unit, and the main control unit servo-controls the ventilation power of the ventilation fan according to the temperature detection signal sent by the temperature sensor.
Through above-mentioned technical scheme, when the wire coil gets into the slow cooling room through setting up temperature sensor, detect its temperature, and then main control unit changes the control by temperature change strategy according to ideal cooling curve, and then carries out servo regulation to ventilation power to can be better carry out the temperature control cooling to high-speed wire rod.
Preferably, an air heater is arranged in the slow cooling chamber, and the air heater is controlled by the main control unit.
Through above-mentioned technical scheme, through setting up air heater in the slow cooling chamber, before using the slow cooling line of high-speed wire rod to carry out the transmission slow cooling to high speed, preheat the inside air heater in the slow cooling chamber, and then can be better carry out slow cooling control by temperature change to the wire rod coil.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of a high-speed wire cooling characteristic.
Fig. 2 is a schematic diagram of a high-speed wire slow cooling line.
Fig. 3 is a control schematic diagram of a slow cooling line for a high-speed wire rod.
Fig. 4 is a schematic view showing the internal structure of the slow cooling chamber.
Fig. 5 is a three-dimensional schematic of a transfer roll bed.
Fig. 6 is a schematic structural view of the opening and closing door.
Fig. 7 is a schematic structural view of the opening and closing driving unit.
Fig. 8 is a schematic diagram showing the structure of the guide holder.
Fig. 9 is a schematic diagram showing the structure of the heat-retaining cover.
Fig. 10 is a schematic view showing a connection manner of the top plate and the side plate.
1, a conveying roller bed; 2. a main control unit; 3. a thermal insulation cover; 31. a top plate; 32. a side plate; 33. the upper part is connected with a bracket; 34. the lower part is connected with a bracket; 35. hoisting the sliding rail; 36. a thermal insulation lining; 4. an opening/closing door; 41. a door frame; 42. a door body; 43. a hanging rail; 44. supporting the slide rail; 45. an opening and closing driving unit; 451. a mounting base; 452. a driving motor; 453. a drive sprocket; 46. a guide seat; 47. a drive chain; 48. a guide wheel; 5. a ventilation fan; 6. an inductive switch; 7. a temperature sensor; 8. an air heater.
Description of the embodiments
The present invention will be described in further detail with reference to the accompanying drawings. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.
Examples
A high-speed wire cooling method comprising the method steps of:
step S1, high-speed wires discharged by a wire-discharge machine are transmitted to a heat-collecting reel through a heat-resistant transmission line, and the high-speed wires are collected into coils by the heat-collecting reel to prepare wire coils; the heat-resistant transmission line can be arranged in various forms such as a roller way transmission line.
Step S2, arranging a lifting tray and an installation transmission line below the heat collection drum device; a step-by-step transmission vertical winding core frame is arranged on the installation transmission line; when the coiled high-speed wire is discharged from the lower portion of the heat collection reel,
the discharged wire rod coil is lifted by the lifting tray, and then the wire rod coil is placed on the vertical winding core frame. The vertical winding core frame for placing the wire coil is sequentially conveyed forwards to the cooling conveying line.
Step S3, when the cooling transmission line is used for transmitting the vertical winding cores with the wire coils, the vertical winding core frame sequentially passes through the plurality of slow cooling chambers, and the indoor temperature of the plurality of slow cooling chambers is gradually reduced from the feeding end of the cooling transmission line to the discharging end of the cooling transmission line. Each slow cooling chamber is respectively connected with a ventilation fan for exchanging gas with the outside, and the ventilation power of the ventilation fan is controlled to further control the flow rate of the air exchange between each slow cooling chamber and the outside in unit time, so that the room temperature of each slow cooling chamber is controlled.
Fig. 1 is a schematic diagram of a cooling characteristic curve of a high-speed wire, wherein L1 is a characteristic curve of air cooling of the high-speed wire in conventional open transmission. L2 is a high-speed wire cooling characteristic curve cooled by the method of this example. Wherein T1 is the temperature of the high-speed wire rod during initial cooling, and T2 is the phase transition temperature of the high-speed wire rod. t1 is the heat preservation time of the high-speed wire rod required by the process. As can be seen from the figure, with the cooling method of the present embodiment, the cooling curve is simulated as a straight linear line; and cooling uniformly. And the traditional open type transmission and air cooling mode is adopted, as the initial high-speed wire rod is horizontally laid on the transmission line, the temperature of the high-speed wire rod is quickly reduced, the later cooling efficiency is gradually reduced, and the high-speed wire rod is unevenly cooled. And because the wire is completely opened with the outside, the trend of the air flow in the later stage is uncontrollable, the heat of the surrounding air can be gradually increased, the cooling efficiency is reduced, and the time required for cooling the high-speed wire to the T2 phase transition temperature is greatly longer than the heat preservation time, so that the production efficiency is low.
Examples
The utility model provides a high-speed wire rod slow cooling line, refers to fig. 2 through 5, includes that a plurality of links to each other in proper order transmission roller bed 1, sets up the upper portion at transmission roller bed 1 and is provided with slow cooling vestibule to and be used for carrying out industrial control's main control unit 2 to high-speed wire rod slow cooling line. The slow cooling gallery comprises a heat preservation cover 3, and the heat preservation cover 3 is provided with a plurality of openable doors 4 with openable structures along the length direction. The main control unit 2 can adopt a singlechip, an MCU with a function, or a PLC.
The opening and closing door 4 is an electric control door and is controlled by the main control unit 2. The opening and closing door 4 partitions the inside of the heat preservation cover 3 into a plurality of slow cooling chambers; the slow cooling chambers are respectively provided with a ventilation opening communicated with the outside, and the ventilation openings are connected with a ventilation fan 5. The vent is usually offered at the slow cooling chamber top, and this is because the other ventilation end of slow cooling chamber is located slow cooling chamber bottom, and transmission roller bed 1 clearance department, and then can be good even through ventilation heat transfer to the inside accuse temperature that cools down of slow cooling chamber. The ventilation fan 5 can adopt a positive pressure fan or a negative pressure fan. The transmission roller bed 1 and the ventilation fan 5 are controlled by the main control unit 2. When the ventilation fan 5 adopts a negative pressure fan, air flow enters the slow cooling chamber from the bottom of the transmission roller bed 1 and is discharged by the ventilation pipe; when the ventilation fan 5 adopts a positive pressure fan, air flow enters the slow cooling chamber from the ventilation pipe and is discharged from the bottom of the conveying roller bed 1. The heat preservation cover 3 has good heat insulation characteristic, and after the wire coil enters the slow cooling chamber, the slow cooling chamber is relatively closed, so that heat is less dissipated to the outside, the temperature in the slow cooling chamber can be rapidly increased, and the wire coil is further protected. The main control unit 2 controls the ventilation ventilator to ventilate with the outside, so as to control the cooling speed of the wire coil. The conveying direction of the conveying roller bed 1 is shown in fig. 2 a.
The transmission roller bed 1 is driven by a servo motor, and a transmission assembly formed by chain wheels and chains drives a plurality of transmission rollers which are arranged at intervals to synchronously rotate, so that a vertical winding core frame placed on the transmission roller bed 1 is driven to walk. The servo motor of the transmission roller bed 1 is controlled by the main control unit 2, so that the transmission speed of the transmission roller bed 1 can be accurately regulated.
An inductive switch 6 for detecting the position of the high-speed wire coil is arranged at the outlet end of the slow cooling chamber, and the inductive switch 6 is controlled by the main control unit 2; when the inductive switch 6 detects an object signal, a detection signal is sent to the main control unit 2, and the main control unit 2 controls the opening and closing door 4 at the outlet end of the current slow cooling chamber to be opened and closed in a delay manner. The inlet end of the slow cooling chamber is provided with a temperature sensor 7 for detecting the temperature of the high-speed wire rod; the temperature sensor 7 is used for detecting the temperature of the wire coil, and sending a temperature detection signal to the main control unit 2, and the main control unit 2 performs servo control on the ventilation power of the ventilation fan 5 according to the temperature detection signal sent by the temperature sensor 7. An air heater 8 is arranged in the slow cooling chamber, and the air heater 8 is controlled by the main control unit 2. By arranging the air heater 8 in the slow cooling chamber, the inside of the slow cooling chamber is preheated by the air heater 8 in the slow cooling chamber before the high-speed wire rod slow cooling line is used for carrying out high-speed transmission slow cooling, and then the temperature of the wire rod coil can be controlled better.
When the high-speed wire is cooled, the best effect is that the high-speed wire cannot be cooled too fast or slower, and the temperature of the high-speed wire is uniformly reduced from the current temperature to the vicinity of the phase transition temperature point of the high-speed wire in the heat preservation time period required by the high-speed wire. In order to achieve the purpose, the high-speed wire is placed on the vertical winding core frame in a wire coil mode, the start and stop of each transmission roller bed 1 are controlled through the main control unit 2, and then the vertical winding core frame is driven to slowly walk on each transmission roller bed 1. When the induction switch 6 detects an object signal in the transmission process of the wire coil, a detection signal is sent to the main control unit 2, and the main control unit 2 controls the opening and closing door 4 at the outlet end of the current slow cooling chamber to be opened, so that the wire coil enters the next slow cooling chamber; and after the delay is set, the opening and closing door 4 is closed, so that the temperature interference among the slow cooling chambers is reduced. When the temperature sensor 7 detects the temperature of the wire coil entering the current slow cooling chamber, the current temperature of the wire coil is analyzed through the driving unit; when the temperature of the wire coil is higher than the temperature point of a preset temperature characteristic curve, the main control unit 2 controls the ventilation fan 5 to increase the ventilation quantity; when the temperature of the wire coil is lower than the temperature point of the preset temperature characteristic curve, the main control unit 2 controls the ventilation fan 5, so that the ventilation quantity of the ventilation fan 5 is reduced.
Referring to fig. 6 to 8, the opening and closing door 4 includes a door frame 41, two door bodies 42 disposed on the door frame 41, and an opening and closing driving unit 45, wherein the opening and closing driving unit 45 is used for driving the door bodies 42 to slide along the door frame 41 to control the opening and closing of the opening and closing door 4. The portal 41 is shaped like a door and spans across the two sides of the conveying roller bed 1. A hanging rail 43 along the width direction of the portal 41 is fixed at the upper part of the portal 41; the suspension rail 43 is a pair of channel-shaped steel, and is suspended and fixed on the gantry 41 by a plate body. The lower part of the suspension rail 43 is provided with a support slide rail 44 arranged in parallel with the suspension rail 43; the support rail 44 spans the upper portion of the transport roller bed 1. The door body 42 is mounted between the hanging rail 43 and the supporting rail 44. The lower portion of the door body 42 is in sliding contact with the support rail 44 along the length direction of the support rail 44.
The opening and closing driving unit 45 includes a driving motor 452, a mounting base 451, and a driving sprocket 453. The driving motor 452 adopts a servo motor and is controlled by the main control unit 2. The mount 451 is located above the hanger rail 43 and is secured to the mast 41. The driving sprocket 453 is rotatably mounted on the mount 451. The body of the driving motor 452 is fixedly connected with the mounting base 451, and an output shaft of the driving motor 452 is coaxially arranged with the driving sprocket 453 and is fixedly connected with the driving sprocket 453.
The lower part of the mounting seat 451 is provided with a guide seat 46, and the door body 42 is hung on the lower part of the guide seat 46. The driving chain 47 is installed on the upper portion of the guide holder 46 and is disposed along the width direction of the door frame 41, and the driving chain 47 is matched with the driving sprocket 453. A plurality of guide wheels 48 are respectively arranged on two sides of the lower part of the guide seat 46, and the guide wheels 48 are in rolling contact with the hanging rail 43 along the length direction of the hanging rail 43. The sprocket 453 is driven to rotate by the driving motor 452, and then the chain is shifted by the sprocket, so that the guide seat 46 moves along the width direction of the door frame 41 under the support of the guide wheel 48, and the door body 42 is driven to open and close. The opening and closing door 4 adopts a form of opposite opening and closing, and adopts a servo motor to drive, so that the response is rapid, the action time is short, and the temperature interference between adjacent slow cooling chambers can be effectively reduced when the door body 42 performs opening and closing actions.
Referring to fig. 4, 9 and 10, the insulating cover 3 includes an outer shell and an insulating liner 36 fixed inside the outer shell. The shell is made of carbon structural steel plates, and has good structural strength; the insulating lining 36 is made of a material having excellent fire-retarding and heat-insulating properties, such as ceramic fiber. The housing includes a top plate 31 and side plates 32 located at both sides of a lower portion of the top plate 31. The insulating lining 36 is also divided into a plurality of mounting blocks, and is mounted on the top plate 31 and the side plate 32 at corresponding positions. A plurality of upper connecting brackets 33 are respectively fixed on two sides of the top plate 31 along the length direction; the side plate 32 is fixed with a plurality of lower connecting brackets 34 along the length direction thereof; the upper connecting brackets 33 and the lower connecting brackets 34 are in one-to-one correspondence, and the upper connecting brackets 33 and the lower connecting brackets 34 are connected by bolts. The roof 31 and curb plate 32 pass through the bolted connection of L type connecting plate, and then assemble together, form heat preservation cover 3, this kind of modularization's detachable construction, conveniently make and dismantle heat preservation cover 3. A hoisting slide rail 35 for installing a hoisting hoist is fixed at the lower part of the top plate 31. Through setting up hoist and mount slide rail 35, and then utilize hoist and mount slide rail 35, use hoist and mount slide rail 35, under the condition that the top cap is not dismantled, conveniently overhaul heat preservation cover 3 inside.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (7)
1. A method of high speed wire cooling comprising the steps of:
step S1, transmitting high-speed wires rolled by a high-speed rolling mill into a heat collecting drum, and collecting the high-speed wires into coils by the heat collecting drum to obtain wire coils;
s2, placing the wire reel disc manufactured by the heat collecting reel on a vertical winding core frame, and sequentially transmitting the vertical winding core frame with the wire reel to a cooling transmission line;
step S3, when the cooling transmission line is used for transmitting the vertical winding cores with the wire coils, the vertical winding core frame sequentially passes through the plurality of slow cooling chambers, and the indoor temperature of the plurality of slow cooling chambers is gradually reduced from the feeding end of the cooling transmission line to the discharging end of the cooling transmission line.
2. A high-speed wire cooling method according to claim 1, characterized in that: in step S3, the room temperature of each slow cooling chamber is controlled by controlling the flow rate of the air exchange between each slow cooling chamber and the outside air in a unit time.
3. The utility model provides a high-speed wire rod slow cooling line, includes a plurality of transmission roller bed (1) that link to each other in proper order, its characterized in that: the upper part of the conveying roller bed (1) is provided with a slow cooling corridor; the slow cooling corridor comprises a heat preservation cover (3), a plurality of openable doors (4) with openable structures are arranged on the heat preservation cover (3) along the length direction of the heat preservation cover, and the openable doors (4) partition the inside of the heat preservation cover (3) into a plurality of slow cooling chambers; the slow cooling chambers are respectively provided with a vent communicated with the outside, and the vent is connected with a ventilation fan (5); the high-speed wire slow cooling line further comprises a main control unit (2), and the transmission roller bed (1), the opening and closing door (4) and the ventilation fan (5) are controlled by the main control unit (2).
4. A high-speed wire slow cooling wire according to claim 3, wherein: the opening and closing door (4) comprises a door frame (41), two door bodies (42) arranged on the door frame (41) and an opening and closing driving unit (45), wherein the opening and closing driving unit (45) is used for driving the door bodies (42) to slide along the direction of the door frame (41) so as to control the opening and closing of the opening and closing door (4); the opening and closing driving unit (45) is controlled by the main control unit (2).
5. A high-speed wire slow cooling wire according to claim 3, wherein: an inductive switch (6) for detecting the position of the high-speed wire coil is arranged at the outlet end of the slow cooling chamber, and the inductive switch (6) is controlled by the main control unit (2); when the inductive switch (6) detects an object signal, a detection signal is sent to the main control unit (2), and the main control unit (2) controls the opening and closing door (4) at the outlet end of the current slow cooling chamber to be opened and closed in a delayed manner.
6. A high-speed wire slow cooling wire according to claim 3, wherein: the inlet end of the slow cooling chamber is provided with a temperature sensor (7) for detecting the temperature of the high-speed wire rod; the temperature sensor (7) is used for detecting the temperature of the coil, and sending a temperature detection signal to the main control unit (2), and the main control unit (2) servo-controls the ventilation power of the ventilation fan (5) according to the temperature detection signal sent by the temperature sensor (7).
7. A high-speed wire slow cooling wire according to claim 3, wherein: an air heater (8) is arranged in the slow cooling chamber, and the air heater (8) is controlled by the main control unit (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310074404.4A CN116371948A (en) | 2023-02-07 | 2023-02-07 | High-speed wire rod cooling method and slow cooling line thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310074404.4A CN116371948A (en) | 2023-02-07 | 2023-02-07 | High-speed wire rod cooling method and slow cooling line thereof |
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| Publication Number | Publication Date |
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| CN116371948A true CN116371948A (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310074404.4A Pending CN116371948A (en) | 2023-02-07 | 2023-02-07 | High-speed wire rod cooling method and slow cooling line thereof |
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| CN (1) | CN116371948A (en) |
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| CN216588306U (en) * | 2021-12-02 | 2022-05-24 | 河北新大东纺织有限公司 | Double-layer self-control door |
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| CN219683584U (en) * | 2023-02-07 | 2023-09-15 | 青岛雷霆重工股份有限公司 | High-speed wire slow cooling line |
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