Unit control method and device of non-oriented electrical steel production line, medium and product

Abstract

The invention provides a unit control method and device for a non-oriented electrical steel production line, a medium and a product, the non-oriented electrical steel production line comprises a normalizing furnace, and the method comprises the steps that in the production process of target strip steel, the current running speed of the target strip steel and the current furnace area temperature of the normalizing furnace are obtained; target set process parameters corresponding to the specification of the target strip steel and the target production speed of the target strip steel are determined on the basis of the corresponding relation among the strip steel specification, the strip steel planned production speed and the set process parameters, and the set process parameters comprise the set furnace area temperature and the set unit tension of a unit; and based on the current running speed, the current furnace area temperature, the target production speed and the target set process parameters, target tension of the unit is determined, so that the unit runs at the target tension. According to the scheme, the situation that strip steel is narrowed when the unit abnormally slows down is eliminated, and the quality of non-oriented electrical steel is improved.

Description

Technical Field

[0001] The present invention relates to the field of non-oriented electrical steel production, and in particular to a unit control method, device, medium and product of a non-oriented electrical steel production line. Background Art

[0002] With the increasing sales of new energy vehicles, the demand for non-oriented electrical steel has also increased significantly. As a key unit for producing electrical steel, the normalizing pickling unit plays a connecting role in the production process of electrical steel, and the normalizing furnace is the top priority in the normalizing pickling unit. During the continuous production process, the unit will slow down the process section due to various reasons. When the strip steel is running at a reduced speed in the normalizing furnace, the high temperature in the furnace causes the strip steel to narrow after it comes off the line. After the strip steel is narrowed, it often causes the strip to break when it is rolled on the rolling mill, affecting production capacity and causing large losses. Summary of the invention

[0003] The embodiments of this specification provide a unit control method, device, medium and product for a non-oriented electrical steel production line.

[0004] In a first aspect, the present invention provides a unit control method for a non-oriented electrical steel production line, wherein the non-oriented electrical steel production line comprises a normalizing furnace, and the method comprises:

[0005] During the production process of the target steel strip, obtaining the current running speed of the target steel strip and the current furnace zone temperature of the normalizing furnace;

[0006] Based on the correspondence between the strip steel specification, the planned strip steel production speed and the set process parameters, determine the target set process parameters corresponding to the target strip steel specification and the target production speed of the target strip steel, wherein the set process parameters include the set furnace zone temperature and the set unit tension of the unit;

[0007] Based on the current operating speed, the current furnace zone temperature, the target production speed and the target setting process parameters, the target tension of the unit is determined so that the unit operates at the target tension.

[0008] In some embodiments, after obtaining the current running speed of the target steel strip, the method further includes:

[0009] determining a first error between the target production speed and the current operating speed;

[0010] If the first error is greater than a preset error, the step of determining the target tension of the unit based on the current operating speed, the current furnace zone temperature, the target production speed and the target setting process parameters is performed.

[0011] In some embodiments, determining the target tension of the unit based on the current operating speed, the current furnace zone temperature, the target production speed, and the target setting process parameter includes:

[0012] Determining a target unit tension of the target strip based on the current furnace zone temperature, the current operating speed, the target production speed, the set furnace zone temperature corresponding to the target strip, and the set unit tension corresponding to the target strip;

[0013] The target tension of the unit is determined based on the target unit tension, the set width of the target strip steel and the set thickness of the target strip steel.

[0014] In some embodiments, determining the target unit tension of the target strip based on the current furnace zone temperature, the current operating speed, the target production speed, the set furnace zone temperature corresponding to the target strip, and the set unit tension corresponding to the target strip includes:

[0015] Determining a target weight based on the current furnace zone temperature, the current operating speed, the target production speed, and a set furnace zone temperature corresponding to the target strip;

[0016] The target unit tension is determined based on the target weight and the set unit tension corresponding to the target strip steel.

[0017] In some embodiments, determining the target weight based on the current furnace zone temperature, the current operating speed, the target production speed, and the set furnace zone temperature corresponding to the target strip steel includes:

[0018] determining a first ratio between the current operating speed and the target production speed;

[0019] Determine a second ratio between the set furnace zone temperature corresponding to the target steel strip and the current furnace zone temperature;

[0020] The product of the first ratio and the second ratio is used as the target weight.

[0021] In some embodiments, after determining the target tension of the machine set, the method further comprises:

[0022] During the operation of the unit at the target tension, detecting the actual width of the target strip;

[0023] If the error between the actual width and the set width of the target strip is greater than the second error, the target tension is adjusted at least once until the error between the actual width of the target strip and the set width is less than or equal to the second error when the unit runs at the final adjusted tension.

[0024] In some embodiments, the step of adjusting the target tension at least once comprises:

[0025] The set unit tension corresponding to the target strip is adjusted, and the target tension of the unit is recalculated based on the adjusted set unit tension, and the recalculated target tension of the unit is used as the adjusted target tension.

[0026] In a second aspect, an embodiment of the present specification provides a unit control device for a non-oriented electrical steel production line, wherein the non-oriented electrical steel production line includes a normalizing furnace, and the device includes:

[0027] An acquisition module, used for acquiring the current running speed of the target steel strip and the current furnace zone temperature of the normalizing furnace during the production process of the target steel strip;

[0028] A parameter determination module, for determining target set process parameters corresponding to the target strip steel specification and the target production speed of the target strip steel based on the correspondence between the strip steel specification, the planned strip steel production speed and the set process parameters, wherein the set process parameters include a set furnace zone temperature and a set unit tension of the unit;

[0029] The tension determination module is used to determine the target tension of the unit based on the current operating speed, the current furnace zone temperature, the target production speed and the target setting process parameters, so that the unit operates at the target tension.

[0030] In a third aspect, an embodiment of the present specification provides a unit control device for a non-oriented electrical steel production line, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of any of the above methods when executing the program.

[0031] In a fourth aspect, an embodiment of the present specification provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of any of the above methods when executed by a processor.

[0032] In a fifth aspect, an embodiment of the present specification provides a computer program product, wherein the computer program product includes a computer program, and when the computer program is executed by a processor, the computer program is used to load and execute the steps of any of the above methods.

[0033] The beneficial effects of the embodiments of this specification are as follows:

[0034] In the technical solution of the embodiment of this specification, in the production process of the target strip steel, the running speed of the target strip steel and the current furnace zone temperature of the normalizing furnace are obtained; based on the corresponding relationship between the strip steel specification, the planned production speed of the strip steel and the set process parameters, the target set process parameters corresponding to the target strip steel specification and the target production speed of the target strip steel are determined, wherein the set process parameters include setting the furnace zone temperature and the set unit tension of the unit; based on the current running speed, the current furnace zone temperature, the target production speed and the target set process parameters, the target tension of the unit is determined so that the unit operates at the target tension. In this solution, in the production process of non-oriented electrical steel, the target tension of the unit is adjusted based on the current running speed of the target strip steel, so as to eliminate the situation that the strip steel is narrowed when the unit speed is abnormally reduced, ensure the stable control of the strip steel width when the unit speed is abnormal, and improve the quality of non-oriented electrical steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present specification. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0036] Figure 1 A flow chart of a unit control method for a non-oriented electrical steel production line provided in an embodiment of this specification;

[0037] Figure 2 A schematic diagram of a unit control device for a non-oriented electrical steel production line provided in an embodiment of this specification;

[0038] Figure 3 A schematic diagram of a unit control device for a non-oriented electrical steel production line provided in an embodiment of this specification. DETAILED DESCRIPTION

[0039] The embodiment of the present invention provides a unit control method, device, medium and product for a non-oriented electrical steel production line. The non-oriented electrical steel production line includes a normalizing furnace. The method includes: in the production process of a target strip steel, obtaining the current operating speed of the target strip steel and the current furnace zone temperature of the normalizing furnace; based on the correspondence between the strip steel specification, the planned strip steel production speed and the set process parameters, determining the target set process parameters corresponding to the specification of the target strip steel and the target production speed of the target strip steel, wherein the set process parameters include the set furnace zone temperature and the set unit tension of the unit; based on the current operating speed, the current furnace zone temperature, the target production speed and the target set process parameters, determining the target tension of the unit so that the unit operates at the target tension.

[0040] According to the scheme of the embodiments of this specification, during the production process of non-oriented electrical steel, the target tension of the unit is adjusted based on the current operating speed of the target strip, so as to eliminate the situation where the strip is narrowed when the unit speed is abnormally reduced, ensure the stable control of the strip width when the unit speed is abnormal, and improve the quality of non-oriented electrical steel.

[0041] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0042] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0043] In a first aspect, the present invention provides a unit control method for a non-oriented electrical steel production line, wherein the non-oriented electrical steel production line comprises a normalizing furnace, such as Figure 1 As shown, the method comprises the following steps:

[0044] Step S101: in the production process of the target steel strip, obtaining the current running speed of the target steel strip and the current furnace zone temperature of the normalizing furnace;

[0045] Step S102: based on the correspondence between the strip steel specification, the planned strip steel production speed and the set process parameters, determining the target set process parameters corresponding to the target strip steel specification and the target production speed of the target strip steel, wherein the set process parameters include the set furnace zone temperature and the set unit tension of the unit;

[0046] Step S103: Based on the current operating speed, the current furnace zone temperature, the target production speed and the target setting process parameters, determine the target tension of the unit so that the unit operates at the target tension.

[0047] In step S101, the target steel strip may be any steel strip running on the line, and the current running speed of the target steel strip may be determined in a variety of ways. In some embodiments, a speed sensor may be provided on the non-oriented electrical steel production line to detect the current running speed of the target steel strip. In other embodiments, the current running speed of the target steel strip may be calculated based on the distance the steel strip runs within a preset time. Of course, the current running speed of the target steel strip may also be determined in other ways, which are not limited here. A temperature sensor may be provided in the normalizing furnace to detect the current furnace zone temperature of the normalizing furnace.

[0048] In step S102, the correspondence between the strip steel specification, the planned production speed of the strip steel and the set process parameters can be pre-constructed. In some embodiments, each specification of the strip steel corresponds to its own planned production speed. For example, the planned production speed of the strip steel 25SW1300 is 60mpm. It should be noted that each specification of the strip steel can correspond to multiple speeds, such as the normal production speed and the speed when an abnormality occurs, wherein the planned production speed of the strip steel is the speed of normal production of the strip steel. Still taking the strip steel 25SW1300 as an example, the normal production speed is 60mpm, and the speed when an abnormality occurs is 45mpm, then the planned production speed of the strip steel is 60mpm. In the embodiments of this specification, each specification of the strip steel can have its own generation plan, and the planned production speed can be obtained through the production plan.

[0049] For each specification of strip steel, the corresponding set process parameters can be regarded as process parameters that can make the final strip steel width meet the requirements when producing the strip steel at the planned production speed, and will not cause the problem of being narrowed. The set process parameters include but are not limited to the set furnace zone temperature and the set unit tension of the unit.

[0050] In the embodiments of this specification, for each specification of steel strip, each planned production speed corresponds to a set process parameter, and a mapping relationship is established between the steel strip specification, the planned production speed, and the set process parameter, so that the corresponding relationship between the steel strip specification, the planned production speed of the steel strip, and the set process parameter can be obtained. Further, based on the specification of the target steel strip and the target production speed of the target steel strip, the above corresponding relationship is searched to obtain the target set process parameter corresponding to the target steel strip, wherein the target production speed is based on the planned production speed of the target steel strip.

[0051] In step S103, in order to avoid changes in the strip width due to abnormal speed during the production of the target strip, the target tension of the unit can be determined based on the current operating speed, the current furnace zone temperature, the target production speed and the target setting process parameters, so that the tension of the unit can be adaptively adjusted based on the running speed of the strip, so that the tension of the unit matches the running speed of the strip.

[0052] It should be noted that when producing non-oriented electrical steel of required specifications, the initial process parameters of the unit can be set process parameters corresponding to the planned production speed. In the production process of non-oriented electrical steel, if the running speed is always stable near the planned production speed, there is no need to adjust the tension of the unit. If the running speed of the strip steel changes suddenly, such as speed reduction, the tension of the unit needs to be adjusted to avoid the strip steel being narrowed.

[0053] Therefore, in the embodiment of this specification, after obtaining the current running speed of the target strip, the following steps may also be included: determining a first error between the target production speed and the current running speed; if the first error is greater than a preset error, executing the step of determining the target tension of the unit based on the current running speed, the current furnace zone temperature, the target production speed and the target setting process parameters.

[0054] It should be noted that the first error can be set according to actual needs. For example, the first error can be 10 mpm, 20 mpm, etc., which is not limited here. In some embodiments, the running speed of the target strip can be continuously monitored and compared with the planned production speed of the target strip, that is, the target production speed. If the error between the two is greater than the first error, it indicates that the running speed of the target strip is abnormal, and the unit tension needs to be recalculated and adjusted. If the error between the two is less than or equal to the first error, it indicates that the running speed of the strip is maintained within a stable range. In order to save computing resources, the unit tension can be calculated. Of course, if you want to accurately control the width of the strip, you can also continuously calculate and adjust the unit tension. For example, for each collected running speed of the target strip, the unit tension is calculated and adjusted, which is not limited here.

[0055] In the embodiments of this specification, step S103 can be implemented in a variety of ways. In some embodiments, the target tension can be obtained by a pre-trained tension estimation model. For example, the input data of the tension estimation model can be the current furnace zone temperature, the current operating speed, the target production speed, and the target setting process parameters, and the output data of the tension estimation model is the target tension of the unit.

[0056] In other embodiments, step S103 can be implemented by the following steps: determining the target unit tension of the target strip based on the current furnace zone temperature, the current operating speed, the target production speed, the set furnace zone temperature corresponding to the target strip, and the set unit tension corresponding to the target strip; determining the target tension of the unit based on the target unit tension, the set width of the target strip and the set thickness of the target strip.

[0057] Specifically, the target unit tension can be calculated by the current furnace zone temperature, the current operating speed, the target production speed, the set furnace zone temperature corresponding to the target strip steel, and the set unit tension corresponding to the target strip steel.

[0058] In some embodiments, the target strip tension can be obtained through a preset unit tension estimation model, wherein the input of the unit tension estimation model can be the current furnace zone temperature, the current operating speed, the target production speed, the set furnace zone temperature corresponding to the target strip steel, and the set unit tension corresponding to the target strip steel. The unit tension estimation model outputs the target unit tension by analyzing and processing the input data.

[0059] In some embodiments, the target unit tension can also be obtained through the following steps: determining the target weight based on the current furnace zone temperature, the current operating speed, the target production speed, and the set furnace zone temperature corresponding to the target strip; determining the target unit tension based on the target weight and the set unit tension corresponding to the target strip.

[0060] The target weight can be determined in a variety of ways. In some embodiments, the target weight can be achieved through the following steps: determining a first ratio between the current operating speed and the target production speed; determining a second ratio between the set furnace zone temperature corresponding to the target strip and the current furnace zone temperature; and taking the product of the first ratio and the second ratio as the target weight.

[0061] For example, if the current running speed is V 实 Indicates that the target production speed is V 设 Indicates that the target strip temperature corresponding to the set furnace zone temperature is T 设 Indicates that the current furnace zone temperature is T 实 Represented as: The target weight q can be calculated by the following formula:

[0062]

[0063] Correspondingly, if the unit tension is set to f 设 Indicates that the target unit tension f 实 It can be obtained by the following formula:

[0064]

[0065] Of course, the target weight can also be obtained by other means, which are not limited here. For example, based on the influence of each parameter on the strip width, an influence factor is set for each parameter, each parameter is multiplied by its respective influence factor, and then the target weight is calculated by the above ratio.

[0066] Furthermore, after obtaining the target unit tension, the total tension of the computer group, that is, the target tension F of the group, can be calculated by the following formula:

[0067] F=f 实 ×W×H

[0068] Wherein, W is the set width of the target strip, and H is the set thickness of the target strip. It should be noted that the set width and set thickness are the width and thickness required for producing the target strip.

[0069] After obtaining the target tension of the unit, the tension of the unit can be adjusted to the target tension, thereby effectively avoiding the problem of abnormal narrowing of the strip.

[0070] In the embodiments of the present specification, after the unit tension is adjusted to the target tension, the strip width can also be verified. If the target tension cannot eliminate the strip width abnormality, the target tension can be further adjusted. The specific steps may include: during the operation of the unit at the target tension, the actual width of the target strip is detected; if the error between the actual width and the set width of the target strip is greater than a second error, the target tension is adjusted at least once until the error between the actual width of the target strip and the set width is less than or equal to the second error when the unit is running at the finally adjusted tension.

[0071] Specifically, when the unit is running at the target tension, the actual width of the target strip can be detected in real time and compared with the set width to determine whether the width of the target strip is abnormally narrowed. In the embodiment of this specification, the second error can be set according to actual needs. If the error between the actual width and the set width is greater than the second error, it indicates that the current target tension still cannot completely eliminate the width abnormality. At this time, the tension of the unit needs to be further adjusted.

[0072] The adjustment of the unit tension can be achieved through multiple rounds of iterations. For example, when the unit is running at the target tension, the strip width is still abnormal, for example, the strip width is still narrowed, then enter the first round of iteration steps, reduce the current target tension, obtain the first tension, and control the unit to run according to the first tension, detect the strip width again, if the strip width is still in a narrowed state, enter the second round of iteration steps, reduce the tension again on the basis of the first tension, obtain the second tension, and control the unit to run according to the second tension, detect the strip width again, if the strip width is still in a narrowed state, enter the third round of iteration steps, and so on. If the strip width abnormality is still not eliminated after the number of iterations reaches the preset number, stop the iteration and alarm to notify relevant personnel of production abnormality. If there is a unit tension that eliminates the strip width abnormality within the number of iterations, the unit is controlled to run with this unit tension.

[0073] In some embodiments, during each round of iteration, the adjustment of the target tension can be achieved through the following steps: adjusting the set unit tension corresponding to the target strip, and recalculating the target tension of the unit based on the adjusted set unit tension, and using the recalculated target tension of the unit as the adjusted target tension.

[0074] Specifically, in each round of iteration, the target tension can be adjusted by modifying the set unit tension. Still taking the above-mentioned strip width narrowing as an example, after entering the first round of iteration steps, the set unit tension is reduced to obtain the first set unit tension, and then the first target unit tension is recalculated based on the first set unit tension by the target tension calculation method introduced above, and then the first tension is calculated based on the first target unit tension. If the first tension still cannot eliminate the problem of strip width narrowing, enter the second round of iteration steps, reduce the first set unit tension again, obtain the second set unit tension, and obtain the second target unit tension based on the second set unit tension, thereby obtaining the second tension, and so on.

[0075] It should be noted that if there is a unit tension that eliminates the abnormal strip width, the corrected set unit tension corresponding to the unit tension can be determined, and the next time the running speed consistent with the current running speed is detected, the corrected set unit tension is used to calculate the target tension of the unit. For example, if the target production speed of the target strip is 60mpm, when the current running speed is detected to be 10mpm, the target tension of the unit is determined by the above method, and the target tension cannot completely eliminate the situation of the width being narrowed. Therefore, the target tension is adjusted through multiple iterations, wherein the second set unit tension is obtained in the second round of iterations, and the second target unit tension is obtained based on the second set unit tension, and the second tension obtained can eliminate the width being narrowed. Therefore, the second set unit tension is used as the corrected set unit tension and recorded. When the current running speed of the target strip is detected to be reduced to 10mpm again next time, the corrected set unit tension, that is, the second set unit tension, can be directly used to calculate the target tension of the unit.

[0076] In order to better understand the unit control method of the non-oriented electrical steel production line provided in the embodiments of this specification, the production process of 25SW1300 non-oriented electrical steel is taken as an example to illustrate the unit tension adjustment in its production process.

[0077] Specifically, the target production speed of 25SW1300 non-oriented electrical steel during normal production is 60mpm, the furnace temperature is set to 900℃, and the unit tension is set to 10N / mm. 2 When the current running speed of the strip steel is detected to be reduced to 5mpm, it indicates that the unit has abnormal deceleration. At this time, the current furnace zone temperature is 930℃. According to the formula Calculate the target unit tension f 实 0.8N / mm 2 Furthermore, the production specifications of the strip steel require that the set width of the strip steel be 1200 mm and the set thickness of the strip steel be 2.4 mm. According to the formula F = f 实 ×W×H, the target tension of the unit is 2.3KN. The target tension required for steel grade 25SW1300 when the speed is abnormally reduced to 5mpm is obtained through the above method, and the total tension of the furnace area is automatically adjusted to 2.3KN to avoid the strip narrowing during the speed reduction process. When the unit resumes normal operating speed, the furnace area tension will also be restored to the normal tension value. Of course, if it is detected that the operating speed is changing in real time, the corresponding target tension can also be calculated based on the real-time changing operating speed, and the furnace area tension can be controlled to be updated.

[0078] In summary, the method of the embodiment of this specification can effectively eliminate the narrowing of non-oriented electrical steel during abnormal speed reduction, achieve stable operation of the normalizing pickling unit, and ensure the quality of the lower limit product.

[0079] Based on the same inventive concept, the embodiment of this specification also provides a unit control device for a non-oriented electrical steel production line, wherein the non-oriented electrical steel production line includes a normalizing furnace, such as Figure 2 As shown, the device comprises:

[0080] An acquisition module 201 is used to acquire the current running speed of the target steel strip and the current furnace zone temperature of the normalizing furnace during the production process of the target steel strip;

[0081] A parameter determination module 202 is used to determine target set process parameters corresponding to the target strip steel specification and the target production speed of the target strip steel based on the correspondence between the strip steel specification, the planned strip steel production speed and the set process parameters, wherein the set process parameters include a set furnace zone temperature and a set unit tension of the unit;

[0082] The tension determination module 203 is used to determine the target tension of the unit based on the current operating speed, the current furnace zone temperature, the target production speed and the target setting process parameters, so that the unit operates at the target tension.

[0083] In some embodiments, the apparatus further comprises:

[0084] A first processing module, configured to determine a first error between the target production speed and the current operating speed;

[0085] The second processing module is used to execute the step of determining the target tension of the unit based on the current operating speed, the current furnace zone temperature, the target production speed and the target setting process parameters if the first error is greater than a preset error.

[0086] In some embodiments, the tension determination module 203 is configured to:

[0087] Determining a target unit tension of the target strip based on the current furnace zone temperature, the current operating speed, the target production speed, the set furnace zone temperature corresponding to the target strip, and the set unit tension corresponding to the target strip;

[0088] The target tension of the unit is determined based on the target unit tension, the set width of the target strip steel and the set thickness of the target strip steel.

[0089] In some embodiments, the tension determination module 203 is configured to:

[0090] Determining a target weight based on the current furnace zone temperature, the current operating speed, the target production speed, and a set furnace zone temperature corresponding to the target strip;

[0091] The target unit tension is determined based on the target weight and the set unit tension corresponding to the target strip steel.

[0092] In some embodiments, the tension determination module 203 is configured to:

[0093] determining a first ratio between the current operating speed and the target production speed;

[0094] Determine a second ratio between the set furnace zone temperature corresponding to the target steel strip and the current furnace zone temperature;

[0095] The product of the first ratio and the second ratio is used as the target weight.

[0096] In some embodiments, the device further comprises:

[0097] A detection module, used for detecting the actual width of the target strip steel when the unit is running at the target tension;

[0098] The third processing module is used to adjust the target tension at least once if the error between the actual width and the set width of the target strip is greater than the second error, until the error between the actual width of the target strip and the set width detected is less than or equal to the second error when the unit runs at the final adjusted tension.

[0099] In some embodiments, the third processing module is used to:

[0100] The set unit tension corresponding to the target strip is adjusted, and the target tension of the unit is recalculated based on the adjusted set unit tension, and the recalculated target tension of the unit is used as the adjusted target tension.

[0101] Regarding the above-mentioned device, the specific functions of each module therein have been described in detail in the embodiment of the unit control method for a non-oriented electrical steel production line provided in the embodiments of this specification, and will not be elaborated here.

[0102] In the third aspect, based on the same inventive concept, an embodiment of the present invention provides a unit control device for a non-oriented electrical steel production line, referring to Figure 3 As shown, it includes a memory 304, a processor 302, and a computer program stored in the memory 304 and executable on the processor 302. When the processor 302 executes the program, any implementation method of the unit control method for a non-oriented electrical steel production line is implemented.

[0103] Among them, Figure 3In the embodiment of the present invention, a bus architecture (represented by bus 300) is shown, which may include any number of interconnected buses and bridges, and bus 300 links various circuits including one or more processors represented by processor 302 and memory represented by memory 304. Bus 300 may also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. Bus interface 305 provides an interface between bus 300 and receiver 301 and transmitter 303. Receiver 301 and transmitter 303 may be the same element, namely a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 302 is responsible for managing bus 300 and general processing, while memory 304 may be used to store data used by processor 302 when performing operations.

[0104] In a fourth aspect, based on the same inventive concept as the unit control method for a non-oriented electrical steel production line in the aforementioned embodiment, the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps in the unit control method for a non-oriented electrical steel production line described above.

[0105] In a fifth aspect, based on the same inventive concept as the unit control method for a non-oriented electrical steel production line in the aforementioned embodiment, the present invention also provides a computer program product, comprising a computer program, which, when executed by a processor, is used to load and execute the steps in the unit control method for a non-oriented electrical steel production line described above.

[0106] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0107] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks 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 processor, or other programmable data processing device to produce 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.

[0108] 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.

[0109] 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 1 The steps for the functions specified in one or more boxes.

[0110] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other 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 the present invention.

[0111] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations 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 include these modifications and variations.

Claims

1. A unit control method for a non-oriented electrical steel production line, characterized in that: The non-oriented electrical steel production line includes a normalizing furnace, and the method includes: During the production process of the target steel strip, obtaining the current running speed of the target steel strip and the current furnace zone temperature of the normalizing furnace; Based on the correspondence between the strip steel specification, the planned strip steel production speed and the set process parameters, determine the target set process parameters corresponding to the target strip steel specification and the target production speed of the target strip steel, wherein the set process parameters include the set furnace zone temperature and the set unit tension of the unit; Based on the current operating speed, the current furnace zone temperature, the target production speed and the target setting process parameters, the target tension of the unit is determined so that the unit operates at the target tension.

2. The method according to claim 1, characterized in that After obtaining the current running speed of the target steel strip, the method further includes: determining a first error between the target production speed and the current operating speed; If the first error is greater than a preset error, the step of determining the target tension of the unit based on the current operating speed, the current furnace zone temperature, the target production speed and the target setting process parameters is performed.

3. The method according to claim 1, characterized in that The step of determining the target tension of the unit based on the current operating speed, the current furnace zone temperature, the target production speed, and the target setting process parameter comprises: Determining a target unit tension of the target strip based on the current furnace zone temperature, the current operating speed, the target production speed, the set furnace zone temperature corresponding to the target strip, and the set unit tension corresponding to the target strip; The target tension of the unit is determined based on the target unit tension, the set width of the target strip steel and the set thickness of the target strip steel.

4. The method according to claim 3, characterized in that The determining the target unit tension of the target strip based on the current furnace zone temperature, the current operating speed, the target production speed, the set furnace zone temperature corresponding to the target strip, and the set unit tension corresponding to the target strip includes: Determining a target weight based on the current furnace zone temperature, the current operating speed, the target production speed, and a set furnace zone temperature corresponding to the target strip; The target unit tension is determined based on the target weight and the set unit tension corresponding to the target strip steel.

5. The method according to claim 4, characterized in that The determining of the target weight based on the current furnace zone temperature, the current operating speed, the target production speed, and the set furnace zone temperature corresponding to the target strip steel includes: determining a first ratio between the current operating speed and the target production speed; Determine a second ratio between the set furnace zone temperature corresponding to the target steel strip and the current furnace zone temperature; The product of the first ratio and the second ratio is used as the target weight.

6. The method according to claim 1, characterized in that After determining the target tension of the machine set, the method further comprises: During the operation of the unit at the target tension, detecting the actual width of the target strip; If the error between the actual width and the set width of the target strip is greater than the second error, the target tension is adjusted at least once until the error between the actual width of the target strip and the set width is less than or equal to the second error when the unit runs at the final adjusted tension.

7. The method according to claim 6, characterized in that The step of adjusting the target tension at least once comprises: The set unit tension corresponding to the target strip is adjusted, and the target tension of the unit is recalculated based on the adjusted set unit tension, and the recalculated target tension of the unit is used as the adjusted target tension.

8. A unit control device for a non-oriented electrical steel production line, characterized in that: The method comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the steps of the method according to any one of claims 1 to 7 are implemented when the processor executes the program.

9. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the computer program is used to load and execute the method according to any one of claims 1 to 7.

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