Continuous mill, control method and device thereof and readable storage medium
By using a laser speed gauge on the continuous rolling mill to detect the steel speed, correct the front slip model and adjust the rolling speed, the problem of low accuracy in the continuous rolling mill is solved, and a more stable steel rolling process is achieved.
Patent Information
- Application Number
- CN202411780025.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-02-11
AI Technical Summary
The rolling speed accuracy of existing hot-rolling continuous rolling mills is low, resulting in large rolling errors, unstable sleeve volume in the frame, abnormal thickness, divergence of model learning coefficients, etc.
A laser speedometer is set up on the continuous rolling mill, and the first speed data is obtained by detecting the speed of the steel, and based on this, the first front slip model is corrected to obtain the second front slip model. Then, the parameters of the steel are input to the second front sliding model to obtain the front sliding coefficient, and the rolling speed of the continuous rolling mill is adjusted according to the front sliding coefficient.
Through this method, the speed accuracy of the continuous rolling steel is improved, the rolling error is reduced, and the stability of the continuous rolling steel is ensured.
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Figure CN119406939A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of equipment control, and in particular to a continuous rolling mill and a control method, device and readable storage medium thereof. Background Art
[0002] Hot rolling flow rate control is the core control technology of hot rolling tandem mills. Traditional hot rolling mills have no speed measuring device at the finishing exit, so the control of flow rate in seconds uses the theoretical flow rate in seconds. Because the actual speed of the strip cannot be obtained, the flow rate in seconds uses the model calculation value. Limited by the control accuracy of the model, the error of flow rate in seconds directly leads to unstable set volume in the frame, abnormal thickness, divergence of model learning coefficients and other problems. It can be seen that at this stage, the control method of the tandem mill has technical problems such as low rolling speed accuracy and large rolling error. Summary of the invention
[0003] The embodiments of the present application provide a continuous rolling mill and a control method, device and readable storage medium thereof, which are used to solve technical problems in the prior art such as low rolling speed accuracy and large rolling error.
[0004] In a first aspect of an embodiment of the present application, a control method for a continuous rolling mill is provided, wherein a laser velocimeter is provided on the continuous rolling mill, and the method comprises:
[0005] In the process of rolling steel in the continuous rolling mill, the speed of the steel is detected by a laser speed meter to obtain first speed data;
[0006] Obtaining a first forward sliding model corresponding to the continuous rolling mill;
[0007] Based on the first speed data, the first forward sliding model is modified to obtain a second forward sliding model;
[0008] Inputting the parameters of the steel material into the second forward sliding model to obtain the forward sliding coefficient output by the second forward sliding model;
[0009] Adjust the speed of the continuous rolling mill rolling steel according to the forward slip coefficient.
[0010] The control method of the continuous rolling mill in this embodiment corrects the first forward slip model based on the first speed data to obtain the second forward slip model, and then outputs the forward slip coefficient through the second forward slip model. According to the forward slip coefficient, the speed at which the continuous rolling mill rolls steel is adjusted, thereby ensuring the speed accuracy of the continuous rolling mill rolling steel, reducing the error of the continuous rolling mill rolling steel, and ensuring the stability of the continuous rolling mill rolling steel.
[0011] In a second aspect of the embodiment of the present application, a control device for a continuous rolling mill is provided. The continuous rolling mill is provided with a laser velocimeter, and the device comprises:
[0012] A control unit, used for detecting the speed of the steel by a laser speed meter during the rolling process of the steel by the continuous rolling mill to obtain first speed data;
[0013] A processing unit, used for obtaining a first forward sliding model corresponding to the continuous rolling mill;
[0014] The processing unit is further used to perform model correction on the first forward sliding model based on the first speed data to obtain a second forward sliding model;
[0015] The processing unit is also used to input the parameters of the steel material into the second forward sliding model to obtain the forward sliding coefficient output by the second forward sliding model;
[0016] The control unit is also used to control the speed at which the continuous rolling mill rolls steel according to the forward slip coefficient.
[0017] The control device of the continuous rolling mill in this embodiment performs model correction on the first forward slip model based on the first speed data to obtain the second forward slip model, and then outputs the forward slip coefficient through the second forward slip model, and adjusts the speed at which the continuous rolling mill rolls steel according to the forward slip coefficient, thereby ensuring the speed accuracy of the continuous rolling mill rolling steel, reducing the error of the continuous rolling mill rolling steel, and ensuring the stability of the continuous rolling mill rolling steel.
[0018] In a third aspect of the embodiments of the present application, another control device for a continuous rolling mill is provided, comprising a processor and a memory, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the steps of the control method for a continuous rolling mill in any of the above embodiments are implemented. Therefore, the control device for a continuous rolling mill has all the beneficial effects of the control method for a continuous rolling mill in any of the above embodiments, which will not be described in detail here.
[0019] In a fourth aspect of the embodiments of the present application, a readable storage medium is provided, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the control method of the continuous rolling mill in any of the above embodiments are implemented. Therefore, the readable storage medium has all the beneficial effects of the control method of the continuous rolling mill in any of the above embodiments, which will not be repeated here.
[0020] According to a fifth aspect of the present invention, a continuous rolling mill is proposed, comprising: a control device for the continuous rolling mill as defined in the above second aspect, or the control device for the continuous rolling mill as defined in the above third aspect, and / or a readable storage medium as defined in the above fourth aspect, and thus having all the beneficial technical effects of the control device for the continuous rolling mill as defined in the above second aspect, or the control device for the continuous rolling mill as defined in the above third aspect, and / or the readable storage medium as defined in the above fourth aspect, which will not be elaborated herein. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0022] Figure 1 A flow chart of a control method for a continuous rolling mill provided in an embodiment of the present application;
[0023] Figure 2 A functional module block diagram of a control device for a continuous rolling mill provided in an embodiment of the present application;
[0024] Figure 3 This is a structural block diagram of the control device of the continuous rolling mill provided in an embodiment of the present application. DETAILED DESCRIPTION
[0025] In order to better understand the technical solutions provided by the embodiments of this specification, the technical solutions of the embodiments of this specification are described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of this specification and the specific features in the embodiments are detailed descriptions of the technical solutions of the embodiments of this specification, rather than limitations on the technical solutions of this specification. In the absence of conflict, the embodiments of this specification and the technical features in the embodiments can be combined with each other.
[0026] In this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements limited by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements. The term "more than two" includes two or more than two situations.
[0027] In some embodiments, Figure 1 As shown, in an embodiment of the present application, a control method for a continuous rolling mill is provided, comprising:
[0028] Step S101, in the process of rolling steel in a continuous rolling mill, the speed of the steel is detected by a laser speed meter to obtain first speed data;
[0029] Step S102, obtaining a first forward sliding model corresponding to the continuous rolling mill;
[0030] Step S103, based on the first speed data, modifying the first forward sliding model to obtain a second forward sliding model;
[0031] Step S104, inputting the parameters of the steel material into the second forward sliding model to obtain the forward sliding coefficient output by the second forward sliding model;
[0032] Step S105, adjusting the speed of the tandem mill rolling the steel according to the forward slip coefficient.
[0033] In this embodiment, a control method for a continuous rolling mill is proposed. The continuous rolling mill is provided with a laser velocimeter, which can detect the speed of steel in the continuous rolling mill.
[0034] During the process of the continuous rolling mill rolling steel, the laser speed meter is controlled to detect the speed of the steel to obtain first speed data, wherein the first speed data is real-time speed data of the continuous rolling mill rolling the steel.
[0035] Exemplarily, the tandem rolling mill may be a tandem rolling mill unit consisting of multiple tandem rolling mills, and the laser velocimeter may detect the multiple tandem rolling mills.
[0036] A first forward slip model corresponding to the continuous rolling mill is obtained, wherein the first forward slip model is a mathematical model for determining operating parameters of the continuous rolling mill.
[0037] Exemplarily, the first forward sliding model can calculate the speed at which the tandem rolling mill rolls the steel.
[0038] Based on the first speed data, the first forward slip model is corrected to obtain a second forward slip model, wherein the second forward slip model is an optimized forward slip model.
[0039] Exemplarily, the first forward slip model is corrected based on the first speed data so that the first forward slip model is updated to the second forward slip model.
[0040] The parameters of the steel material are input into the second forward sliding model to obtain the forward sliding coefficient output by the second forward sliding model.
[0041] It should be noted that during the rolling process, the exit speed of the rolled metal is greater than the circumferential speed of the roller. The descriptive parameter is called the forward slip value, also known as the forward slip coefficient. The forward slip is the result of the longitudinal extension of the metal and the friction force during rolling.
[0042] Exemplarily, the parameters of the steel include thickness, tension and other parameters of the steel.
[0043] Adjust the speed of the continuous rolling mill rolling steel according to the forward slip coefficient.
[0044] Exemplarily, according to the forward slip coefficient, a target rolling speed corresponding to the tandem rolling mill is determined, and parameters of the tandem rolling mill are set so that the speed at which the tandem rolling mill rolls steel is equal to the target rolling speed.
[0045] It should be noted that the second forward sliding model can determine the accurate rolling speed of the continuous rolling mill, ensure the speed accuracy of the continuous rolling mill rolling steel, reduce the error of the continuous rolling mill rolling steel, and ensure the stability of the continuous rolling mill rolling steel.
[0046] The control method of the continuous rolling mill in this embodiment corrects the first forward slip model based on the first speed data to obtain the second forward slip model, and then outputs the forward slip coefficient through the second forward slip model. According to the forward slip coefficient, the speed at which the continuous rolling mill rolls steel is adjusted, thereby ensuring the speed accuracy of the continuous rolling mill rolling steel, reducing the error of the continuous rolling mill rolling steel, and ensuring the stability of the continuous rolling mill rolling steel.
[0047] In some embodiments, an embodiment of the present application provides a control method for a continuous rolling mill, which performs a model correction on a first forward slip model based on first speed data to obtain a second forward slip model, including:
[0048] Step S201, performing data filtering processing on the first speed data to obtain second speed data;
[0049] Step S201: According to the second speed data, the output data of the first forward sliding model is corrected so that the first forward sliding model is updated to the second forward sliding model.
[0050] In this embodiment, data filtering is performed on the first speed data to obtain second speed data, wherein the second speed data is valid speed data in the first speed data.
[0051] Exemplarily, the validity of the first speed data is determined according to the standard deviation, extreme value, mean value, etc. to obtain the second speed data.
[0052] According to the second speed data, data correction is performed on the output data of the first forward sliding model so that the first forward sliding model is updated to the second forward sliding model.
[0053] Exemplarily, the first forward slip model is corrected based on the second speed data so that the first forward slip model is updated to the second forward slip model.
[0054] The control method of the continuous rolling mill in this embodiment obtains second speed data by filtering the first speed data, and then corrects the first forward slip model based on the second speed data to update the first forward slip model to the second forward slip model, thereby ensuring the model accuracy of the second forward slip model and further ensuring the speed accuracy of the continuous rolling mill in rolling steel.
[0055] In some embodiments, an embodiment of the present application provides a control method for a continuous rolling mill, which performs data correction on output data of a first forward slip model according to second speed data so as to update the first forward slip model to a second forward slip model, including:
[0056] Step S301, processing the output data of the first forward sliding model to obtain third speed data;
[0057] Step S302: calibrate the third speed data according to the second speed data, so as to update the first forward sliding model to the second forward sliding model.
[0058] In this embodiment, data processing is performed on the output data of the first forward sliding model to obtain third speed data, wherein the third speed data is speed data determined according to the output data of the first forward sliding model.
[0059] Exemplarily, the output data of the first forward slip model may be a theoretical forward slip coefficient, and the third speed data is obtained according to the product of the linear speed of the roller and the theoretical forward slip coefficient.
[0060] According to the second speed data, the third speed data is data-calibrated so that the first forward sliding model is updated to the second forward sliding model.
[0061] Exemplarily, the third speed data is corrected by the second speed data to adjust the model parameters of the first forward sliding model, thereby obtaining the second forward sliding model.
[0062] The control method of the continuous rolling mill in this embodiment corrects the third speed data through the second speed data to adjust the model parameters of the first forward slip model, and then obtains the second forward slip model, thereby ensuring the model accuracy of the second forward slip model and further ensuring the speed accuracy of the continuous rolling mill in rolling steel.
[0063] In some embodiments, an embodiment of the present application provides a control method for a continuous rolling mill, wherein the parameters of the steel are input into a second forward slip model to obtain a forward slip coefficient output by the second forward slip model, including:
[0064] Step S401, checking the operating parameters of the continuous rolling mill to determine the thickness variation and tension difference of the steel;
[0065] Step S402, inputting the thickness variable and the tension difference into the second forward sliding model to obtain the forward sliding coefficient.
[0066] In this embodiment, the parameters of the steel include the thickness variable and the tension difference of the steel, the thickness variable is the thickness variable of the steel after rolling, and the tension difference is the tension variable of the steel after rolling.
[0067] Check the operating parameters of the continuous rolling mill to determine the thickness variation and tension difference of the steel.
[0068] Exemplarily, the operating parameters of the continuous rolling mill are detected in real time to obtain the thickness variation and tension difference of the steel.
[0069] The thickness variable and the tension difference are input into the second forward slip model to obtain the forward slip coefficient.
[0070] The control method of the continuous rolling mill in this embodiment ensures the data accuracy of the forward slip coefficient by inputting the thickness variable and the tension difference into the second forward slip model to obtain the forward slip coefficient, thereby ensuring the speed accuracy of the continuous rolling mill in rolling steel.
[0071] In some embodiments, an embodiment of the present application provides a control method for a continuous rolling mill, which adjusts the speed of rolling steel by the continuous rolling mill according to the forward slip coefficient, including:
[0072] Step S501, obtaining the roller linear speed of the continuous rolling mill;
[0073] Step S502, determining the target speed value of the steel material according to the roller linear speed and the forward slip coefficient;
[0074] Step S503, determining the target flow rate per second of the steel material according to the target speed value and the thickness data of the steel material;
[0075] Step S504, based on the target flow rate per second, control the speed of the continuous rolling mill rolling the steel.
[0076] In this embodiment, the linear speed of the rollers of the continuous rolling mill is obtained, wherein the continuous rolling mill includes rollers, and the linear speed of the rollers is the linear speed of the rollers.
[0077] Determine the target speed value of the steel based on the roller linear speed and forward slip coefficient.
[0078] Exemplarily, the product of the roller linear velocity and the forward slip coefficient is calculated to obtain the target velocity value.
[0079] Determine the target flow rate per second of the steel based on the target speed value and the thickness data of the steel.
[0080] Exemplarily, the product of the target speed value and the thickness data of the steel material is calculated to obtain the target flow rate per second.
[0081] Based on the target flow rate per second, the speed at which the continuous rolling mill rolls steel is controlled.
[0082] For example, the control of the flow rate per second adopts the theoretical flow rate per second value, that is, flow rate per second = actual thickness of the strip × theoretical speed of the strip. During the control process, the thickness, rolling force, deformation resistance, and the amount of the inner sleeve of the frame are all based on the theoretical flow rate per second.
[0083] The control method of the continuous rolling mill in this embodiment controls the speed of the continuous rolling mill rolling steel based on the target second flow rate, thereby ensuring the speed accuracy of the continuous rolling mill rolling steel, reducing the error of the continuous rolling mill rolling steel, and ensuring the stability of the continuous rolling mill rolling steel.
[0084] In some embodiments, Figure 2 As shown, in an embodiment of the present application, a control device 600 for a continuous rolling mill is provided, comprising:
[0085] The control unit 602 is used to detect the speed of the steel by a laser speed meter during the rolling process of the steel by the continuous rolling mill to obtain first speed data;
[0086] The processing unit 604 is used to obtain a first forward sliding model corresponding to the continuous rolling mill;
[0087] The processing unit 604 is further configured to perform model correction on the first forward sliding model based on the first speed data to obtain a second forward sliding model;
[0088] The processing unit 604 is further used to input the parameters of the steel material into the second forward sliding model to obtain the forward sliding coefficient output by the second forward sliding model;
[0089] The control unit 602 is also used to control the speed at which the continuous rolling mill rolls steel according to the forward slip coefficient.
[0090] In this embodiment, a control device 600 for a continuous rolling mill is proposed. The continuous rolling mill is provided with a laser velocimeter, which can detect the speed of steel in the continuous rolling mill.
[0091] During the process of the continuous rolling mill rolling steel, the laser speed meter is controlled to detect the speed of the steel to obtain first speed data, wherein the first speed data is real-time speed data of the continuous rolling mill rolling the steel.
[0092] Exemplarily, the tandem rolling mill may be a tandem rolling mill unit consisting of multiple tandem rolling mills, and the laser velocimeter may detect the multiple tandem rolling mills.
[0093] A first forward slip model corresponding to the continuous rolling mill is obtained, wherein the first forward slip model is a mathematical model for determining operating parameters of the continuous rolling mill.
[0094] Exemplarily, the first forward sliding model can calculate the speed at which the tandem rolling mill rolls the steel.
[0095] Based on the first speed data, the first forward slip model is corrected to obtain a second forward slip model, wherein the second forward slip model is an optimized forward slip model.
[0096] Exemplarily, the first forward slip model is corrected based on the first speed data so that the first forward slip model is updated to the second forward slip model.
[0097] The parameters of the steel material are input into the second forward sliding model to obtain the forward sliding coefficient output by the second forward sliding model.
[0098] It should be noted that during the rolling process, the exit speed of the rolled metal is greater than the circumferential speed of the roller. The descriptive parameter is called the forward slip value, also known as the forward slip coefficient. The forward slip is the result of the longitudinal extension of the metal and the friction force during rolling.
[0099] Exemplarily, the parameters of the steel include thickness, tension and other parameters of the steel.
[0100] Adjust the speed of the continuous rolling mill rolling steel according to the forward slip coefficient.
[0101] Exemplarily, according to the forward slip coefficient, a target rolling speed corresponding to the tandem rolling mill is determined, and parameters of the tandem rolling mill are set so that the speed at which the tandem rolling mill rolls steel is equal to the target rolling speed.
[0102] It should be noted that the second forward sliding model can determine the accurate rolling speed of the continuous rolling mill, ensure the speed accuracy of the continuous rolling mill rolling steel, reduce the error of the continuous rolling mill rolling steel, and ensure the stability of the continuous rolling mill rolling steel.
[0103] The control device 600 of the continuous rolling mill in this embodiment performs model correction on the first forward slip model based on the first speed data to obtain the second forward slip model, and then outputs the forward slip coefficient through the second forward slip model, and adjusts the speed of the continuous rolling mill rolling the steel according to the forward slip coefficient, thereby ensuring the speed accuracy of the continuous rolling mill rolling the steel, reducing the error of the continuous rolling mill rolling the steel, and ensuring the stability of the continuous rolling mill rolling the steel.
[0104] In some embodiments, an embodiment of the present application provides a control device 600 for a continuous rolling mill, further comprising:
[0105] The processing unit 604 is further used to perform data filtering processing on the first speed data to obtain second speed data;
[0106] The processing unit 604 is further configured to perform data correction on the output data of the first forward sliding model according to the second speed data, so as to update the first forward sliding model to the second forward sliding model.
[0107] In some embodiments, an embodiment of the present application provides a control device 600 for a continuous rolling mill, further comprising:
[0108] The processing unit 604 is further used to process the output data of the first forward sliding model to obtain third speed data;
[0109] The processing unit 604 is further configured to perform data calibration on the third speed data according to the second speed data, so as to update the first forward sliding model to the second forward sliding model.
[0110] In some embodiments, an embodiment of the present application provides a control device 600 for a continuous rolling mill, further comprising:
[0111] The processing unit 604 is also used to check the operating parameters of the continuous rolling mill to determine the thickness variation and tension difference of the steel;
[0112] The processing unit 604 is further configured to input the thickness variable and the tension difference into the second forward sliding model to obtain the forward sliding coefficient.
[0113] In some embodiments, an embodiment of the present application provides a control device 600 for a continuous rolling mill, further comprising:
[0114] The processing unit 604 is also used to obtain the roller linear speed of the continuous rolling mill;
[0115] The processing unit 604 is further used to determine the target speed value of the steel material according to the linear speed of the roller and the forward slip coefficient;
[0116] The processing unit 604 is further used to determine the target flow rate per second of the steel material according to the target speed value and the thickness data of the steel material;
[0117] The processing unit 604 is also used to control the speed of the continuous rolling mill rolling steel based on the target second flow rate.
[0118] In some embodiments, Figure 3 As shown, a control device 700 for a continuous rolling mill is proposed, and the control device 700 for the continuous rolling mill includes a processor 702 and a memory 704. The memory 704 stores a computer program, and when the computer program is executed by the processor 702, the steps of the control method for the continuous rolling mill in any of the above embodiments are implemented. Therefore, the control device 700 for the continuous rolling mill has all the beneficial effects of the control method for the continuous rolling mill in any of the above embodiments, which will not be described in detail here.
[0119] In some embodiments, a readable storage medium is provided, on which a program is stored. When the program is executed by a processor, the steps of the control method of the continuous rolling mill in any of the above embodiments are implemented, thereby having all the beneficial technical effects of the control method of the continuous rolling mill in any of the above embodiments.
[0120] In some embodiments, a continuous rolling mill is provided, comprising: a control device for the continuous rolling mill as in any of the above embodiments, and / or a readable storage medium as in any of the above embodiments, and thus having all the beneficial technical effects of the control device for the continuous rolling mill as in any of the above embodiments, and / or the readable storage medium as in any of the above embodiments, which will not be elaborated herein.
[0121] In some embodiments, a continuous rolling mill is provided, the continuous rolling mill further comprising:
[0122] Laser speed meter, during the process of rolling steel in the continuous rolling mill, the laser speed meter is used to detect the speed of steel.
[0123] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0124] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-readable program code.
[0125] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded computer, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.
[0126] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.
[0127] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1The steps for the functions specified in one or more boxes.
[0128] An embodiment of the present application further provides a computer program product, which includes computer software instructions. When the computer software instructions are executed on a processing device, the processing device executes the process of the control method of the continuous rolling mill.
[0129] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a server or a data center that includes one or more available media integration. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.
[0130] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.
[0131] In the several embodiments provided in the present application, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.
[0132] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
[0133] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
[0134] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program codes.
[0135] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
[0136] Although the preferred embodiments of this specification have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of this specification.
[0137] Obviously, those skilled in the art can make various changes and modifications to this specification without departing from the spirit and scope of this specification. Thus, if these modifications and variations of this specification fall within the scope of the claims of this specification and their equivalents, this specification is also intended to include these modifications and variations.
Claims
1. A control method for a continuous rolling mill, characterized in that: The continuous rolling mill is provided with a laser velocimeter, and the method comprises: During the process of rolling the steel by the continuous rolling mill, the speed of the steel is detected by the laser speed meter to obtain first speed data; Acquire a first forward sliding model corresponding to the continuous rolling mill; Based on the first speed data, performing model correction on the first forward sliding model to obtain a second forward sliding model; Inputting the parameters of the steel material into the second forward sliding model to obtain the forward sliding coefficient output by the second forward sliding model; The speed at which the steel is rolled by the tandem rolling mill is adjusted according to the forward slip coefficient.
2. The method according to claim 1, characterized in that The method of performing model correction on the first forward sliding model based on the first speed data to obtain a second forward sliding model includes: Performing data filtering processing on the first speed data to obtain second speed data; According to the second speed data, data correction is performed on the output data of the first forward slip model, so that the first forward slip model is updated to the second forward slip model.
3. The method according to claim 2, characterized in that The step of performing data correction on the output data of the first forward sliding model according to the second speed data so as to update the first forward sliding model to the second forward sliding model includes: Processing the output data of the first forward sliding model to obtain third speed data; The third speed data is data-calibrated according to the second speed data, so that the first forward sliding model is updated to the second forward sliding model.
4. The method according to claim 1, characterized in that: The parameters of the steel material include thickness variables and tension differences of the steel material. Inputting the parameters of the steel material into the second forward sliding model to obtain the forward sliding coefficient output by the second forward sliding model includes: Checking the operating parameters of the tandem mill to determine the thickness variation and the tension difference of the steel; The thickness variable and the tension difference are input into the second forward slip model to obtain the forward slip coefficient.
5. The method according to any one of claims 1 to 4, characterized in that The step of adjusting the speed at which the tandem rolling mill rolls the steel material according to the forward slip coefficient comprises: Obtaining the roller linear speed of the continuous rolling mill; Determining a target speed value of the steel material according to the roller linear speed and the forward slip coefficient; Determining a target flow rate per second of the steel material according to the target speed value and the thickness data of the steel material; Based on the target flow rate per second, the speed at which the tandem rolling mill rolls the steel is controlled.
6. A control device for a continuous rolling mill, characterized in that: The continuous rolling mill is provided with a laser velocimeter, and the device comprises: A control unit, used for detecting the speed of the steel by the laser speed meter during the rolling of the steel by the tandem rolling mill to obtain first speed data; A processing unit, used for acquiring a first forward sliding model corresponding to the continuous rolling mill; The processing unit is further configured to perform model correction on the first forward sliding model based on the first speed data to obtain a second forward sliding model; The processing unit is further used to input the parameters of the steel material into the second forward sliding model to obtain the forward sliding coefficient output by the second forward sliding model; The control unit is further used to control the speed at which the tandem rolling mill rolls the steel according to the forward slip coefficient.
7. A control device for a continuous rolling mill, characterized in that: include: processor; A memory, wherein a program or instruction is stored in the memory, and when the processor executes the program or instruction in the memory, the steps of the control method of the continuous rolling mill as claimed in any one of claims 1 to 5 are implemented.
8. A readable storage medium, characterized in that: The readable storage medium stores programs or instructions, and when the programs or instructions are executed by the processor, the steps of the control method of the continuous rolling mill as claimed in any one of claims 1 to 5 are implemented.
9. A continuous rolling mill, characterized in that: include: The control device of the tandem rolling mill according to claim 6 or 7; and / or The readable storage medium as claimed in claim 8.
10. The tandem rolling mill according to claim 9, characterized in that: The continuous rolling mill also includes: The laser speed meter is used to detect the speed of the steel during the rolling process of the steel by the continuous rolling mill.