CN109821902B - Method for improving transverse lubricating capability distribution of edge profile of silicon steel - Google Patents
Method for improving transverse lubricating capability distribution of edge profile of silicon steel Download PDFInfo
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- 238000009826 distribution Methods 0.000 title claims abstract description 92
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 27
- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 77
- 239000010959 steel Substances 0.000 claims abstract description 77
- 238000005299 abrasion Methods 0.000 claims abstract description 29
- 238000005461 lubrication Methods 0.000 claims description 30
- 230000011218 segmentation Effects 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 8
- 239000007921 spray Substances 0.000 claims description 3
- 230000001186 cumulative effect Effects 0.000 claims 1
- 241000282326 Felis catus Species 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention provides a method for improving the distribution of transverse lubricating capacity of the edge profile of silicon steel, which comprises the following steps: simulating the distribution curve of the integral lubricating capacity in the width direction of the strip steel through the nozzle parameters; collecting wear data of the edge of the roller to obtain an edge wear distribution curve of the roller; and adjusting the parameters of the nozzle according to the edge wear distribution curve and the strip steel width direction overall lubricating capacity distribution curve, so that the strip steel width direction overall lubricating capacity distribution curve conforms to the edge wear distribution curve trend. The technical problems that in the prior art, the lubricating capability cannot be enhanced aiming at a wear concentrated area, the roller is not worn uniformly, and the shape and the contour of a cat ear appear on strip steel are solved. The technical effects of improving the shape and the profile of the strip steel cat ear and improving the precision of the strip steel profile by optimizing the overall flow, increasing the lubricating capacity of the edge of the strip steel, effectively improving the problem of concentrated abrasion of the edge of the strip steel and reducing the uneven degree of abrasion of the roller are achieved.
Description
Technical Field
The invention relates to the technical field of hot-rolled strip steel form control, in particular to a method for improving the distribution of transverse lubricating capacity of the edge profile of silicon steel.
Background
In the process of silicon steel rolling, the influence of a component system and a process system is caused, the silicon content is higher, the finish rolling temperature is low, the edge of the strip steel is quickly abraded by contacting with a roller, and the shape and the profile of a cat ear are easily generated in the same-width rolling process, so that the plate shape quality of a product is influenced. The process lubrication is commonly adopted in the industry to reduce the abrasion of the roller and improve the outline of the strip steel. However, production lines are different, product specifications are different, and traditional process lubrication cannot enhance lubricating capability for a wear concentrated area according to the width characteristic of a product plate.
However, the applicant of the present invention finds that the prior art has at least the following technical problems:
in the prior art, the lubricating capability can not be enhanced aiming at a wear concentrated area, and the technical problems of uneven wear of a roller and cat ear appearance and outline of strip steel exist.
Disclosure of Invention
The embodiment of the invention provides a method for improving the distribution of transverse lubricating capacity of the edge profile of silicon steel, and solves the technical problems that the lubricating capacity cannot be enhanced aiming at a wear concentrated area, the roller wear is uneven, and the strip steel has a cat ear-shaped profile in the prior art.
In view of the above problems, the present invention provides a method for improving the distribution of the lateral lubrication capability of the edge profile of silicon steel, the method comprising: simulating a distribution curve of the integral lubricating capacity of the strip steel in the width direction through nozzle parameters, wherein the nozzle parameters at least comprise: nozzle angle, nozzle flow, nozzle spacing, and collector-to-roll section distance; collecting wear data of the edge of the roller to obtain an edge wear distribution curve of the roller; and adjusting the parameters of the nozzle according to the edge wear distribution curve and the strip steel width direction overall lubricating capacity distribution curve, so that the strip steel width direction overall lubricating capacity distribution curve conforms to the edge wear distribution curve trend.
Preferably, the simulating of the distribution curve of the integral lubricating capacity in the width direction of the strip steel through the nozzle parameters comprises: taking the nozzle parameters as physical input quantities, analyzing the lubricating capacity of the nozzle parameters according to a trigonometric function and a fixed splitting unit to obtain the transverse splitting flow of a single nozzle; obtaining the accumulated transverse flow of two adjacent nozzles according to the transverse segmentation flow of the single nozzle; and obtaining the distribution curve of the integral lubricating capacity of the strip steel in the width direction according to the transverse splitting flow of the single nozzle and the accumulated transverse flow of the two adjacent nozzles.
Preferably, said cam is based on a triangleAnalyzing the lubricating capacity of the nozzle parameters by the function according to the fixed segmentation unit to obtain the transverse segmentation flow of a single nozzle, wherein the transverse segmentation flow comprises the following steps: according to the formula
Obtaining the transverse cutting flow of the single nozzle; wherein theta is the angle of the nozzle, D is the distance between the nozzle and the tangent plane of the roller, P1 is the flow rate of the nozzle, and W1 is the transverse splitting flow rate of a single nozzle.
Preferably, the nozzle parameters further include: the number of nozzles, the spray length of the nozzles, the number of edge nozzles, the distance between adjacent nozzles and the angle of the edge nozzles.
Preferably, the obtaining of the accumulated lateral flow of two adjacent nozzles according to the lateral splitting flow of the single nozzle includes: obtaining the transverse flow overlapping area of the adjacent nozzles according to the distance between the adjacent nozzles and the transverse splitting flow of the single nozzle of the adjacent nozzle; and obtaining the accumulated transverse flow of the two adjacent nozzles in the transverse flow overlapping area according to the transverse segmentation flow of the single nozzle of the adjacent nozzle.
Preferably, the obtaining the accumulated lateral flow of the two adjacent nozzles in the lateral flow overlapping region according to the lateral split flow of the single nozzle of the adjacent nozzle includes: obtaining the accumulated lateral flow of the two adjacent nozzles of the lateral flow overlap region according to the formula W + ═ W1+ W2; and W + is the accumulated transverse flow of two adjacent nozzles, and W1 and W2 are the transverse splitting flow of the single nozzle of the adjacent nozzles.
Preferably, the adjusting the nozzle parameters according to the edge wear distribution curve and the distribution curve of the overall lubricating capacity in the width direction of the strip steel includes: according to the formula
Modifying the nozzle parameters to enable the modified distribution curve of the integral lubricating capacity in the width direction of the strip steel to be consistent with the trend of the edge abrasion distribution curve; wherein θ is a nozzleThe angle, D is the distance of the nozzle from the tangent plane of the roller, P1 is the nozzle flow rate, and W1 is the single nozzle transverse cutting flow rate.
Preferably, the nozzle angle is 15-120 °.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
the embodiment of the invention provides a method for improving the distribution of transverse lubricating capacity of the edge profile of silicon steel, which comprises the following steps: simulating a distribution curve of the integral lubricating capacity of the strip steel in the width direction through nozzle parameters, wherein the nozzle parameters at least comprise: nozzle angle, nozzle flow, nozzle spacing, and collector-to-roll section distance; collecting wear data of the edge of the roller to obtain an edge wear distribution curve of the roller; according to the edge wear distribution curve and the strip steel width direction integral lubrication capability distribution curve, the nozzle parameters are adjusted, so that the strip steel width direction integral lubrication capability distribution curve is matched with the edge wear distribution curve, the lubrication capability of a high-value position, namely a wear concentration area, in the edge wear distribution curve is increased, so that the corresponding lubrication capability distribution curve position is also increased, vice versa, the lubrication capability of a low-wear area is also reduced at the same time, the wear degree of the edge of the roller is reduced by improving the lubrication capability, and therefore the problem of edge wear concentration of the strip steel is solved, and the technical problems that in the prior art, the lubrication capability cannot be enhanced aiming at the wear concentration area, the roller wear is uneven, and the strip steel has a 'cat ear' shape and outline are solved. The technical effects of improving the shape and the profile of the strip steel cat ear and improving the precision of the strip steel profile by optimizing the overall flow, increasing the lubricating capacity of the edge of the strip steel, effectively improving the problem of concentrated abrasion of the edge of the strip steel and reducing the uneven degree of abrasion of the roller are achieved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
FIG. 1 is a schematic flow chart illustrating a method for improving the distribution of the lateral lubrication capability of the edge profile of silicon steel according to an embodiment of the present invention;
FIG. 2 is an exploded view of a nozzle flow in an embodiment of the present invention;
FIG. 3 is a graph showing the distribution of the overall lubricating ability in the width direction of the strip steel according to the embodiment of the present invention;
FIG. 4 is a graph showing the wear curve of the strip steel roll in the embodiment of the present invention;
FIG. 5 is a graph comparing the wear of the lower roll in the example of the present invention.
Detailed Description
The embodiment of the invention provides a method for improving the distribution of transverse lubricating capacity of the edge profile of silicon steel, which is used for solving the technical problems that the lubricating capacity cannot be enhanced aiming at a wear concentrated area, the roller wear is uneven, and the strip steel has a cat ear-shaped profile in the prior art.
The technical scheme provided by the invention has the following general idea:
simulating a distribution curve of the integral lubricating capacity of the strip steel in the width direction through nozzle parameters, wherein the nozzle parameters at least comprise: nozzle angle, nozzle flow, nozzle spacing, and collector-to-roll section distance; collecting wear data of the edge of the roller to obtain an edge wear distribution curve of the roller; and adjusting the parameters of the nozzle according to the edge wear distribution curve and the strip steel width direction overall lubricating capacity distribution curve, so that the strip steel width direction overall lubricating capacity distribution curve conforms to the edge wear distribution curve trend. The technical effects of improving the shape and the profile of the strip steel cat ear and improving the precision of the strip steel profile by optimizing the overall flow, increasing the lubricating capacity of the edge of the strip steel, effectively improving the problem of concentrated abrasion of the edge of the strip steel and reducing the uneven degree of abrasion of the roller are achieved.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
FIG. 1 is a schematic flow chart illustrating a method for improving the distribution of the lateral lubrication capability of the edge profile of silicon steel according to an embodiment of the present invention. An embodiment of the present invention provides a method for improving the distribution of the lateral lubrication capability of the edge profile of silicon steel, referring to fig. 1 to 3, the method including:
step 10: simulating a distribution curve of the integral lubricating capacity of the strip steel in the width direction through nozzle parameters, wherein the nozzle parameters at least comprise: nozzle angle, nozzle flow, nozzle spacing, header to roll section distance.
Further, simulating the distribution curve of the integral lubricating capacity in the width direction of the strip steel through the nozzle parameters comprises: taking the nozzle parameters as physical input quantities, analyzing the lubricating capacity of the nozzle parameters according to a trigonometric function and a fixed splitting unit to obtain the transverse splitting flow of a single nozzle; obtaining the accumulated transverse flow of two adjacent nozzles according to the transverse segmentation flow of the single nozzle; and obtaining the distribution curve of the integral lubricating capacity of the strip steel in the width direction according to the transverse splitting flow of the single nozzle and the accumulated transverse flow of the two adjacent nozzles.
Further, the analyzing the nozzle parameter to the lubricating capacity according to the trigonometric function and the fixed segmentation unit to obtain the transverse segmentation flow of the single nozzle includes: according to the formula
Obtaining the transverse cutting flow of the single nozzle; wherein theta is the angle of the nozzle, D is the distance between the nozzle and the tangent plane of the roller, P1 is the flow rate of the nozzle, and W1 is the transverse splitting flow rate of a single nozzle.
Further, the nozzle parameters further include: the number of nozzles, the spray length of the nozzles, the number of edge nozzles, the distance between adjacent nozzles and the angle of the edge nozzles.
Further, the obtaining of the accumulated lateral flow of two adjacent nozzles according to the lateral splitting flow of the single nozzle includes: obtaining the transverse flow overlapping area of the adjacent nozzles according to the distance between the adjacent nozzles and the transverse splitting flow of the single nozzle of the adjacent nozzle; and obtaining the accumulated transverse flow of the two adjacent nozzles in the transverse flow overlapping area according to the transverse segmentation flow of the single nozzle of the adjacent nozzle.
Further, the obtaining the accumulated lateral flow of the two adjacent nozzles in the lateral flow overlapping region according to the lateral splitting flow of the single nozzle of the adjacent nozzle includes: obtaining the accumulated lateral flow of the two adjacent nozzles of the lateral flow overlap region according to the formula W + ═ W1+ W2; and W + is the accumulated transverse flow of two adjacent nozzles, and W1 and W2 are the transverse splitting flow of the single nozzle of the adjacent nozzles.
Specifically, the nozzle parameters, namely the nozzle angle, the nozzle flow, the nozzle distance and the distance between the manifold and the roller section, are used for off-line programming by using EXCEL VBA, the physical input quantities are used, the lubrication capacity of the nozzle is decomposed and accumulated according to a fixed segmentation unit by using a trigonometric function, and as shown in FIG. 2, the nozzle flow is decomposed into a schematic diagram according to a formula
Calculating the transverse cutting flow of a single nozzle of each nozzle, combining the transverse cutting flow of the single nozzle with the distance between two adjacent nozzles to obtain the accumulated transverse flow of two adjacent nozzles in the overlapped area of the two nozzles, wherein the accumulated transverse flow of the two adjacent nozzles is the sum of the transverse cutting flows of the single nozzles of the two adjacent nozzles, and obtaining a curve graph of the transverse flow through the obtained transverse cutting flow of the single nozzle and the accumulated transverse flow of the two adjacent nozzles, thereby simulating the whole lubricating capacity distribution curve along the width direction of the strip steel. The distribution curve of the integral lubricating capability of the strip steel in the width direction describes the lubrication of the nozzle in the width direction of the strip steelThe sliding flow is distributed, and the corresponding lubricating capability is strong in places with large flow.
Step 20: and collecting the edge wear data of the roller to obtain an edge wear distribution curve of the roller.
Specifically, the specific production condition of the production line is collected, the data of the actual edge wear of the roller is obtained, the distribution of the actual edge wear concentrated area of the roller is obtained, and as shown in fig. 4, the edge wear distribution curve corresponding to the production line is obtained by using the edge wear data.
Step 30: and adjusting the parameters of the nozzle according to the edge wear distribution curve and the strip steel width direction overall lubricating capacity distribution curve, so that the strip steel width direction overall lubricating capacity distribution curve conforms to the edge wear distribution curve trend.
Further, the adjusting the nozzle parameters according to the edge wear distribution curve and the distribution curve of the integral lubrication capability in the width direction of the strip steel comprises: according to the formula
Modifying the nozzle parameters to enable the modified distribution curve of the integral lubricating capacity in the width direction of the strip steel to be consistent with the trend of the edge abrasion distribution curve; wherein theta is the angle of the nozzle, D is the distance between the nozzle and the tangent plane of the roller, P1 is the flow rate of the nozzle, and W1 is the transverse splitting flow rate of a single nozzle.
Specifically, the nozzle angle and the flow rate of the edge nozzle are reset according to the nozzle parameters and the distribution of the actual edge wear concentrated area of the roller, and an off-line simulation program is utilized according to a formula
And simulating the whole transverse lubrication distribution capacity, and carrying out targeted adjustment on the whole lubrication capacity of the wear concentrated area, so that the whole lubrication capacity of the wear concentrated area is increased, and the edge wear degree is reduced. As shown in fig. 3, by following the formula
The nozzle parameters are adjusted to enable the distribution curve of the integral lubricating capacity in the width direction of the strip steel to be consistent with the trend of the distribution curve of the edge abrasion, when the edge abrasion is increased to a concentrated area, the lubricating capacity is also increased, namely the lubricating capacity of a position with a high value in the distribution curve of the edge abrasion, namely the lubricating capacity of the abrasion concentrated area, is increased to enable the position of the corresponding distribution curve of the lubricating capacity to be increased, vice versa, the lubricating capacity is also reduced in the same trend for a region with low abrasion, the lubricating capacity is increased to reduce the degree of the edge abrasion by increasing the lubricating capacity of the region with concentrated edge abrasion, when the lubricating capacity of the concentrated abrasion region is high, the problem of uneven roller abrasion is effectively reduced, the lubricating capacity in the width direction of the plate is optimized, so that the uniformity of the roller abrasion is improved, the appearance profile of the cat ear of the strip steel is improved, the precision of the, the technical problems of uneven roller wear and cat ear appearance and contour of the strip steel exist.
Further, the nozzle angle is 15-120 °.
Example two
In order to better describe the technical features and the applications of the method for improving the distribution of the lateral lubrication capability of the edge profile of silicon steel of the present invention, the following will explain the application of the present invention in detail with reference to the specific embodiments, please refer to fig. 2-5.
The embodiment of the invention takes a 1580 production line of a certain company as an example, and the main width specification of a silicon steel product in the 1580 production line is 1000-1200 mm.
Using trigonometric functions, using VBA off-line programming, the manifold lubrication capability in the width direction was simulated, as shown in FIG. 2, by nozzle parameters: theta is the angle of the nozzle, D is the distance between the nozzle and the tangent plane of the roller, P1 is the flow rate of the nozzle, W1 is the transverse splitting flow rate of a single nozzle, and the formula is utilized
And obtaining the distribution curve of the integral lubricating capacity of the strip steel in the width direction.
And collecting actual wear data of the roller, obtaining a corresponding wear curve, and determining a strip steel wear concentrated area. As shown in FIG. 4, the width of the finished product is 1000-1200mm, and the concentrated band steel wear area is concentrated at the position 500-600mm away from the center.
And adjusting the nozzle parameters by combining the actual wear curve of the on-site roller and the actual working condition data of the roller lubrication manifold, wherein the width of the finished product is 1200mm, and the concentrated band steel wear area is concentrated at the position 500 mm away from the center and 600mm away from the center. And (3) aiming at the wear concentration position, the nozzle is reselected, namely parameter setting is carried out, the lubricating capability along the plate width direction is simulated, and the lubricating capability at the position 500-600mm away from the center is improved. The nozzle parameters are as follows: center nozzle angle θ: 90 °, edge nozzle angle θ: 60 degrees, the flow P of a central nozzle is 5ml/min, the flow of an edge nozzle is 15ml/min, and the distance H between two adjacent nozzles is as follows: 197mm, distance D of the nozzle from the tangent plane of the roller: 400mm, simulating the distribution of the lubricating flow at each point along the width direction by using an off-line program, as shown in FIG. 3, it can be seen from the graph that the distribution curve of the overall lubricating capacity of the strip steel in the width direction is consistent with the abrasion trend of the roller, and the lubricating capacity of the strip steel in the concentrated abrasion area, namely the position 500 mm away from the center and 600mm away from the center, is obviously improved.
Through detection of the roller, in the production of the hot-rolled non-oriented silicon steel, the abrasion difference between an edge abrasion concentrated area and a central abrasion area of the roller can be reduced by 10-20%, as shown in fig. 5, the upper curve in the graph is optimized, namely the edge nozzle is designed by an off-line program to be re-shaped, and after the lubricating capability of the edge is increased, the roller is taken off the mill to grind the curve; the following curves are: the flow of the traditional rolling lubricating nozzle is uniformly distributed, and the rolling mill wear curve is obtained. As can be seen from the figure, the grinding loss of the lower mill roller is obviously improved after the optimization of the embodiment of the invention. By optimizing the whole flow and increasing the lubricating capacity of the edge of the strip steel, the problem of concentrated abrasion of the edge of the strip steel can be effectively improved, and the uneven degree of abrasion of the roller is effectively reduced, so that the shape and the profile of the cat ear of the strip steel are improved, and the precision of the profile of the strip steel is improved.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
the embodiment of the invention provides a method for improving the distribution of transverse lubricating capacity of the edge profile of silicon steel, which comprises the following steps: simulating a distribution curve of the integral lubricating capacity of the strip steel in the width direction through nozzle parameters, wherein the nozzle parameters at least comprise: nozzle angle, nozzle flow, nozzle spacing, and collector-to-roll section distance; collecting wear data of the edge of the roller to obtain an edge wear distribution curve of the roller; according to the edge wear distribution curve and the strip steel width direction integral lubrication capability distribution curve, the nozzle parameters are adjusted, so that the strip steel width direction integral lubrication capability distribution curve is matched with the edge wear distribution curve, the lubrication capability of a high-value position, namely a wear concentration area, in the edge wear distribution curve is increased, so that the corresponding lubrication capability distribution curve position is also increased, vice versa, the lubrication capability of a low-wear area is also reduced at the same time, the wear degree of the edge of the roller is reduced by improving the lubrication capability, and therefore the problem of edge wear concentration of the strip steel is solved, and the technical problems that in the prior art, the lubrication capability cannot be enhanced aiming at the wear concentration area, the roller wear is uneven, and the strip steel has a 'cat ear' shape and outline are solved. The technical effects of improving the shape and the profile of the strip steel cat ear and improving the precision of the strip steel profile by optimizing the overall flow, increasing the lubricating capacity of the edge of the strip steel, effectively improving the problem of concentrated abrasion of the edge of the strip steel and reducing the uneven degree of abrasion of the roller are achieved.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (7)
1. A method of improving the lateral lubricity distribution of a silicon steel edge profile, the method comprising:
simulating a distribution curve of the integral lubricating capacity of the strip steel in the width direction through nozzle parameters, wherein the nozzle parameters at least comprise: nozzle angle, nozzle flow, nozzle spacing, and collector-to-roll section distance;
collecting wear data of the edge of the roller to obtain an edge wear distribution curve of the roller;
adjusting the nozzle parameters according to the edge wear distribution curve and the strip steel width direction overall lubricating capacity distribution curve to enable the strip steel width direction overall lubricating capacity distribution curve to accord with the edge wear distribution curve trend;
wherein, according to limit portion's wearing and tearing distribution curve with the whole lubricating ability distribution curve of belted steel width direction, right the nozzle parameter is adjusted, include:
according to the formula
Modifying the nozzle parameters to enable the modified distribution curve of the integral lubricating capacity in the width direction of the strip steel to be consistent with the trend of the edge abrasion distribution curve;
wherein theta is the angle of the nozzle, D is the distance between the nozzle and the tangent plane of the roller, P1 is the flow rate of the nozzle, and W1 is the transverse splitting flow rate of a single nozzle.
2. The method of claim 1, wherein the simulating the distribution curve of the overall lubricating capacity in the width direction of the strip steel through the nozzle parameters comprises:
taking the nozzle parameters as physical input quantities, analyzing the lubricating capacity of the nozzle parameters according to a trigonometric function and a fixed splitting unit to obtain the transverse splitting flow of a single nozzle;
obtaining the accumulated transverse flow of two adjacent nozzles according to the transverse segmentation flow of the single nozzle;
and obtaining the distribution curve of the integral lubricating capacity of the strip steel in the width direction according to the transverse splitting flow of the single nozzle and the accumulated transverse flow of the two adjacent nozzles.
3. The method of claim 2, wherein said analyzing lubrication capability of said nozzle parameters according to a fixed cut unit based on trigonometric functions to obtain individual nozzle lateral cut flow comprises:
according to the formula
Obtaining the transverse cutting flow of the single nozzle;
wherein theta is the angle of the nozzle, D is the distance between the nozzle and the tangent plane of the roller, P1 is the flow rate of the nozzle, and W1 is the transverse splitting flow rate of a single nozzle.
4. The method of claim 2, wherein the nozzle parameters further comprise: the number of nozzles, the spray length of the nozzles, the number of edge nozzles, the distance between adjacent nozzles and the angle of the edge nozzles.
5. The method of claim 4, wherein said obtaining an accumulated cross flow for two adjacent nozzles based on said single nozzle cross-slicing flow comprises:
obtaining the transverse flow overlapping area of the adjacent nozzles according to the distance between the adjacent nozzles and the transverse splitting flow of the single nozzle of the adjacent nozzle;
and obtaining the accumulated transverse flow of the two adjacent nozzles in the transverse flow overlapping area according to the transverse segmentation flow of the single nozzle of the adjacent nozzle.
6. The method of claim 5, wherein said obtaining said cumulative lateral flow for said two adjacent nozzles in said lateral flow overlap region based on said laterally split flow for each of said individual nozzles of said two adjacent nozzles comprises:
obtaining the accumulated lateral flow of the two adjacent nozzles of the lateral flow overlap region according to the formula W + ═ W1+ W2;
and W + is the accumulated transverse flow of two adjacent nozzles, and W1 and W2 are the transverse splitting flow of the single nozzle of the adjacent nozzles.
7. The method of claim 1, wherein the nozzle angle is 15-120 °.
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