Method, device and readable storage medium for detecting rolling mill

Abstract

The application discloses a rolling mill detection method, device and readable storage medium, and relates to the technical field of hot rolling. The rolling mill detection method comprises the following steps: detecting the moving speed of the steel material in the process of rolling the steel material by the rolling mill, so as to obtain the speed variation of the steel material within a preset detection time length; determining the ratio between the speed variation and a pre-acquired entry speed, so as to obtain a speed ratio; wherein the entry speed is the speed of the steel material when entering the rolling mill; and in the case that the speed ratio is greater than a preset threshold, controlling the rolling mill to output alarm information. The application improves the detection accuracy of the rolling mill.

Description

Technical Field

[0001] This application relates to the field of hot rolling technology, and more particularly to a method, apparatus and readable storage medium for testing rolling mills. Background Technology

[0002] In hot-rolled strip steel production lines, when producing high-strength wide and thin specifications, the first mill in the finishing area experiences back-slip abnormalities due to slippage or intermediate waves during the rolling process. This leads to major malfunctions such as lumps and broken rolls within the mill stand. Therefore, it is urgent to conduct high-accuracy detection of back-slip abnormalities in the mill. Summary of the Invention

[0003] This application provides a method, apparatus, and readable storage medium for detecting rolling mill anomalies, which addresses the technical problem of poor accuracy in detecting backslip anomalies in the prior art.

[0004] A first aspect of this application provides a method for detecting rolling mills, the method comprising: During the rolling process of steel in a rolling mill, the inlet velocity of the steel entering the rolling mill is obtained; The moving speed of the steel is detected to obtain the change in the steel's speed; Determine the ratio between the change in velocity and the population velocity to obtain the velocity ratio; If the speed ratio is greater than a preset threshold, the control mill will output an alarm message.

[0005] The detection method for the rolling mill in this embodiment detects the inlet speed of the steel entering the rolling mill and the speed change of the steel during the rolling process. This ensures the real-time performance and accuracy of the inlet speed and speed change data. Then, the ratio between the speed change and the inlet speed is determined to obtain the speed ratio. The speed ratio is compared with a preset threshold. If the speed ratio is greater than the preset threshold, it indicates that the rolling mill has a backslip anomaly, and the rolling mill needs to output an alarm message. This method ensures the timeliness and accuracy of the detection of backslip anomalies, thereby guaranteeing the accuracy of the backslip anomaly detection.

[0006] A second aspect of this application provides a detection device for a rolling mill, the device comprising: The acquisition unit is used to acquire the inlet velocity of steel entering the rolling mill during the rolling process. The detection unit is used to detect the moving speed of the steel to obtain the change in the steel's speed; A processing unit is used to determine the ratio between the change in velocity and the population velocity to obtain the velocity ratio. The control unit is used to control the mill to output alarm information when the speed ratio is greater than a preset threshold.

[0007] The detection device of the rolling mill in this embodiment detects the inlet speed of the steel entering the rolling mill and the change in the steel speed, ensuring the real-time and accurate data of the inlet speed and the change in speed. Then, it determines the ratio between the change in speed and the inlet speed to obtain the speed ratio. The speed ratio is compared with a preset threshold. If the speed ratio is greater than the preset threshold, it indicates that the rolling mill has a backslip anomaly, and the rolling mill needs to output an alarm message. For the backslip anomaly of the rolling mill, the device ensures the timeliness of the detection and the accuracy of the judgment, thereby ensuring the accuracy of the detection of the backslip anomaly of the rolling mill.

[0008] A third aspect of this application provides another rolling mill detection apparatus, including a processor and a memory. The memory stores a computer program, which, when executed by the processor, implements the steps of the rolling mill detection method as described in any of the above embodiments. Therefore, this rolling mill detection apparatus possesses all the beneficial effects of the rolling mill detection method in any of the above embodiments, which will not be elaborated further here.

[0009] A fourth aspect of this application provides a readable storage medium storing a program or instructions that, when executed by a processor, implement the steps of the mill detection method as described in any of the above embodiments. Therefore, this readable storage medium possesses all the beneficial effects of the mill detection method in any of the above embodiments, which will not be elaborated further here. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 A flowchart illustrating the detection method for a rolling mill provided in this application embodiment; Figure 2 A functional block diagram of the detection device for a rolling mill provided in an embodiment of this application; Figure 3 This is a structural block diagram of the detection device for a rolling mill provided in an embodiment of this application. Detailed Implementation

[0012] To better understand the technical solutions provided in the embodiments of this specification, the technical solutions of the embodiments of this specification will be described in detail below with reference to 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.

[0013] In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element. The term "two or more" includes two or more cases.

[0014] In some embodiments, the present application provides a method for detecting a rolling mill. In this embodiment, the method for detecting a rolling mill is used to determine whether the rolling mill has a backslip abnormality. The rolling mill is the core equipment for realizing metal rolling processing. It uses the pressure of rotating rolls to cause plastic deformation of metal billets to obtain steel products with specified shapes, sizes and properties.

[0015] For example, rolling mills can be divided into billet rolling mills, section rolling mills (used for H-beams, rails, etc.), plate rolling mills (cold-rolled plates, hot-rolled plates), pipe rolling mills, wire rod rolling mills (high-speed wire rod rolling mills), etc., with corresponding structures matched for different steel products.

[0016] For example, rolling mills can be divided into hot rolling mills (processing above the recrystallization temperature of metals, used for billet making and forming) and cold rolling mills (processing below the recrystallization temperature, used for producing high-precision thin strips).

[0017] For example, rolling mills can be divided into two-roll, three-roll, four-roll, universal rolling mills (the core type of H-beam steel production), continuous rolling mills, etc., with different structures corresponding to different rolling precision and production efficiency.

[0018] like Figure 1 As shown, the inspection methods for rolling mills include: Step S101: During the rolling process of steel in the rolling mill, the moving speed of the steel is detected to obtain the change in the speed of the steel within a preset detection time. After the rolling mill is started, the rolling mill is controlled to roll the steel, and the moving speed of the steel is detected to obtain the change in the speed of the steel within a preset detection time. The preset detection time is the set speed detection time, and the speed change is the change in the moving speed of the steel.

[0019] For example, the preset detection duration can be 4 seconds.

[0020] For example, the steel can be strip steel, which refers to long strip steel with a width of 1000mm-2500mm and a thickness of 0.1mm-20mm. According to the rolling temperature, it can be divided into hot-rolled strip steel and cold-rolled strip steel, which is one of the most widely used steel products in industry.

[0021] For example, the entry velocity of steel into a rolling mill can be detected using a laser velocimeter. Laser velocimeters are non-contact detection devices that measure velocity based on the laser optical effect and are widely used in industrial applications such as strip rolling. The principle of a laser Doppler velocimeter is based on the optical Doppler effect: The laser emits two coherent laser beams, which intersect to form an interference fringe region (measurement area) with alternating bright and dark areas. When a moving object such as a strip passes through the measurement area, it will scatter the laser light, and the frequency of the scattered light will differ from the frequency of the incident laser light (Doppler shift). The magnitude of the frequency shift is directly proportional to the speed of the object's motion. The signal processor can calculate the actual speed of the object by measuring the frequency difference.

[0022] For example, the change in speed can be the change in the speed at which the steel moves within a preset market.

[0023] For example, the moving speed of the steel can be detected by a laser velocimeter to obtain the change in the steel's speed.

[0024] The advantages of laser velocimeters include: Non-contact measurement: No direct contact with the strip is required, so it will not damage the strip surface and is not affected by wear or slippage, resulting in more stable measurement accuracy.

[0025] High precision: Under controlled conditions, the precision can reach ±0.006%, which is far higher than that of traditional indirect speed measurement methods and can meet the requirements of high-precision strip steel production.

[0026] Fast response: The response time is only a fraction of a second, and it can track the acceleration and deceleration of the strip in real time. It is suitable for high-speed rolling scenarios and has mature applications in cold rolling mills of domestic steel mills such as Jiuquan Iron & Steel and Anshan Iron & Steel.

[0027] Strong anti-interference: It is suitable for the harsh industrial environment of high temperature, dust and emulsion in the rolling site. With the help of protective box, cooling water and air purging, it can ensure long-term stable operation.

[0028] Step S102: Determine the ratio between the change in speed and the pre-acquired population speed to obtain the speed ratio; The ratio between the change in velocity and the inlet velocity is calculated to obtain the velocity ratio, where the velocity ratio is the ratio between the change in velocity and the inlet velocity, and the inlet velocity is the velocity of the steel entering the mill.

[0029] Step S103: If the speed ratio is greater than a preset threshold, control the mill to output an alarm message.

[0030] Get the preset threshold value set in advance.

[0031] For example, the preset threshold can be specifically 10%.

[0032] Comparing the speed ratio with the preset threshold, if the speed ratio is greater than the preset threshold, it indicates that the mill has experienced a backslip abnormality, and the mill needs to output an alarm message, which is a message indicating that the mill is abnormal.

[0033] For example, if the speed ratio is less than a preset threshold, it indicates that there is no backslip abnormality in the mill, and the mill can be controlled to continue running.

[0034] The mill detection method in this embodiment detects the inlet speed of the steel entering the mill and the change in the steel speed, ensuring the real-time nature and accuracy of the inlet speed and speed change data. Then, it determines the ratio between the speed change and the inlet speed to obtain the speed ratio. The speed ratio is compared with a preset threshold. If the speed ratio is greater than the preset threshold, it indicates that the mill has a backslip anomaly, and the mill needs to output an alarm message. This method ensures the timeliness and accuracy of the detection of backslip anomalies, thereby ensuring the accuracy of the backslip anomaly detection.

[0035] In some embodiments, this application provides a detection method for a rolling mill, wherein a preset detection duration includes multiple detection periods, and the moving speed of the steel is detected to obtain the change in the speed of the steel within the preset detection duration, including: Based on multiple detection periods, the moving speed of the steel is detected multiple times to obtain multiple real-time speeds, and each real-time speed corresponds one-to-one with a detection period. Data processing is performed on multiple real-time speeds to obtain the speed change.

[0036] In this embodiment, the preset detection duration includes multiple detection time periods, wherein the detection time period is a preset speed detection interval time period.

[0037] Based on multiple detection periods, the moving speed of the steel is detected multiple times to obtain multiple real-time speeds. The real-time speed is the real-time moving speed of the steel, and the multiple real-time speeds correspond one-to-one with the multiple detection periods.

[0038] For example, multiple detection times can be determined based on multiple detection periods, and multiple real-time speeds of the steel can be detected based on these multiple detection times.

[0039] For example, the moving speed of the steel is detected 10 times within a preset detection time to obtain 10 real-time speeds.

[0040] Data processing is performed on multiple real-time speeds to obtain the speed change.

[0041] In some embodiments of this application, a detection method for a rolling mill is provided, which processes data from multiple real-time speeds to obtain speed change, including: Determine the maximum value among multiple real-time speeds to obtain the maximum real-time speed; Determine the minimum value among multiple real-time velocities to obtain the minimum real-time velocity; Determine the difference between the maximum and minimum real-time speeds to obtain the speed change.

[0042] In this embodiment, a maximum value among multiple real-time speeds is determined to obtain the maximum real-time speed, wherein the maximum real-time speed is the maximum value among the multiple real-time speeds.

[0043] Determine the minimum value among multiple real-time velocities to obtain the minimum real-time velocity, where the minimum real-time velocity is the minimum value among multiple real-time velocities.

[0044] Determine the difference between the maximum and minimum real-time speeds to obtain the speed change.

[0045] In some embodiments of this application, a detection method for a rolling mill is provided, which processes data from multiple real-time speeds to obtain speed change, including: Establish a speed detection model for the rolling mill; Multiple real-time velocities are input into the velocity detection model to obtain the velocity change output by the velocity detection model.

[0046] In this embodiment, a speed detection model corresponding to the rolling mill is established, wherein the speed detection model is a model for detecting changes in the speed of steel.

[0047] For example, the speed detection model can be a deep learning model.

[0048] For example, the velocity detection model can be a mathematical model.

[0049] Multiple real-time velocities are input into the velocity detection model to obtain the velocity change output by the velocity detection model.

[0050] In some embodiments of this application, a detection method for a rolling mill is provided, which processes data from multiple real-time speeds to obtain speed change, including: Establish velocity distribution curves based on multiple real-time velocities; The change in velocity is determined based on the magnitude of the change in the velocity distribution curve.

[0051] In this embodiment, a speed distribution curve is established based on multiple real-time speeds, wherein the speed distribution curve is a curve representing the speed of the steel.

[0052] For example, the horizontal axis of the velocity distribution curve represents time, and the vertical axis of the velocity distribution curve represents velocity.

[0053] The change in velocity is determined based on the magnitude of the change in the velocity distribution curve.

[0054] For example, the velocity change is determined based on the maximum change amplitude of the velocity distribution curve.

[0055] In some embodiments of this application, a detection method for a rolling mill is provided. After controlling the rolling mill to output alarm information, the method includes: Control the rolling mill to stop working.

[0056] In this embodiment, after the control mill outputs an alarm message, it is necessary to control the mill to stop working in order to avoid mill malfunction.

[0057] In some embodiments, this application provides a method for detecting the movement speed of steel in a rolling mill, including: The moving speed of the steel is detected at preset detection intervals; Methods for controlling the output alarm information of the rolling mill include: Within the preset alarm duration, the control mill outputs alarm information; wherein the total value of the preset alarm duration and the preset detection duration is less than or equal to the detection time interval.

[0058] In this embodiment, a preset detection time interval is obtained, wherein the detection time interval is the time interval for detecting the speed of the steel.

[0059] For example, the detection time interval can be specifically 10 seconds.

[0060] The moving speed of the steel is detected at preset detection intervals.

[0061] Obtain the preset alarm duration, where the preset alarm duration is the duration of the alarm message.

[0062] Within the preset alarm duration, the control mill outputs alarm information, wherein the total value of the preset alarm duration and the preset detection duration is less than or equal to the detection time interval.

[0063] For example, after the control mill outputs an alarm message, if the speed ratio is less than a preset threshold, it indicates that there is no backslip abnormality in the mill, and the control mill stops outputting alarm messages.

[0064] For example, when the laser velocimeter is loaded and the laser velocimeter detects a speed greater than 0, after the rolling mill F1 is loaded, the maximum (a) and minimum (b) within a 2-second time interval are calculated every 4 seconds. The difference between the maximum and minimum values ​​is divided by the current F1 inlet speed c. If the quotient is greater than 10%, an alarm is triggered.

[0065] That is: d = (ab) / c, and an alarm is triggered when d > 10%.

[0066] If d>10% for only one cycle, the alarm will disappear after 2 seconds; if it continues to be greater than 10%, the alarm will continue.

[0067] In some embodiments, such as Figure 2 As shown, an embodiment of this application provides a rolling mill inspection device 200, comprising: The acquisition unit 202 is used to detect the moving speed of the steel during the rolling process of the rolling mill, so as to obtain the change in the speed of the steel within a preset detection time. Processing unit 204 is used to determine the ratio between the speed change and the pre-acquired inlet speed to obtain the speed ratio; wherein, the inlet speed is the speed at which the steel enters the inlet of the rolling mill; Control unit 206 is used to control the mill to output alarm information when the speed ratio is greater than a preset threshold.

[0068] In this embodiment, the rolling mill detection rolling 200 detects the inlet speed of the steel entering the rolling mill and detects the change in the steel speed, ensuring the real-time and accurate data of the inlet speed and the change in speed. Then, the ratio between the change in speed and the inlet speed is determined to obtain the speed ratio. The speed ratio is compared with a preset threshold. If the speed ratio is greater than the preset threshold, it indicates that the rolling mill has a backslip anomaly, and the rolling mill needs to output an alarm message. For the backslip anomaly of the rolling mill, the timely detection and accurate judgment of the backslip anomaly are ensured, thereby ensuring the accuracy of the detection of the backslip anomaly of the rolling mill.

[0069] In some embodiments of this application, a detection device 200 for a rolling mill is provided, wherein the detection unit 204 is further configured to: Based on multiple detection periods, the moving speed of the steel is detected multiple times to obtain multiple real-time speeds, and each real-time speed corresponds one-to-one with a detection period. Data processing is performed on multiple real-time speeds to obtain the speed change.

[0070] In some embodiments of this application, a detection device 200 for a rolling mill is provided, wherein the detection unit 204 is further configured to: Determine the maximum value among multiple real-time speeds to obtain the maximum real-time speed; Determine the minimum value among multiple real-time velocities to obtain the minimum real-time velocity; Determine the difference between the maximum and minimum real-time speeds to obtain the speed change.

[0071] In some embodiments of this application, a detection device 200 for a rolling mill is provided, wherein the detection unit 204 is further configured to: Establish a speed detection model for the rolling mill; Multiple real-time velocities are input into the velocity detection model to obtain the velocity change output by the velocity detection model.

[0072] In some embodiments of this application, a detection device 200 for a rolling mill is provided, wherein the detection unit 204 is further configured to: Establish velocity distribution curves based on multiple real-time velocities; The change in velocity is determined based on the magnitude of the change in the velocity distribution curve.

[0073] In some embodiments of this application, a detection device 200 for a rolling mill is provided, wherein the control unit 208 is further configured to: Control the rolling mill to stop working.

[0074] In some embodiments of this application, a detection device 200 for a rolling mill is provided, wherein the control unit 208 is further configured to: The moving speed of the steel is detected at preset detection intervals; Within the preset alarm duration, the control mill outputs alarm information; wherein the total value of the preset alarm duration and the preset detection duration is less than or equal to the detection time interval.

[0075] In some embodiments, such as Figure 3As shown, a rolling mill inspection device 300 is proposed. The rolling mill inspection device 300 includes a processor 302 and a memory 304. The memory 304 stores a computer program, which, when executed by the processor 302, implements the steps of the rolling mill inspection method as described in any of the above embodiments. Therefore, the rolling mill inspection device 300 possesses all the beneficial effects of the rolling mill inspection method in any of the above embodiments, which will not be elaborated further here.

[0076] In some embodiments, a readable storage medium is provided having a program stored thereon, which, when executed by a processor, implements the steps of the mill detection method as described in any of the above embodiments, and thus has all the beneficial technical effects of the mill detection method as described in any of the above embodiments.

[0077] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0078] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-readable program code.

[0079] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0080] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0081] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0082] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to execute a process of a detection method for a rolling mill.

[0083] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0084] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0085] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between devices or units, and may be electrical, mechanical, or other forms.

[0086] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0087] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0088] If the integrated unit is implemented as 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 this application, in essence, 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. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0089] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

[0090] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this specification.

[0091] Obviously, those skilled in the art can make various modifications and variations to this specification without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, this specification is also intended to include such modifications and variations.

Claims

1. A method for detecting rolling mills, characterized in that, The method includes: During the rolling process of the steel in the rolling mill, the moving speed of the steel is detected to obtain the change in the speed of the steel within a preset detection time. The ratio between the speed change and the pre-acquired inlet speed is determined to obtain the speed ratio; wherein, the inlet speed is the speed at which the steel enters the inlet of the rolling mill; If the speed ratio is greater than a preset threshold, the mill is controlled to output an alarm message.

2. The method according to claim 1, characterized in that, The preset detection duration includes multiple detection periods. The detection of the steel's moving speed to obtain the change in the steel's speed within the preset detection duration includes: Based on multiple detection time periods, the moving speed of the steel is detected multiple times to obtain multiple real-time speeds, and the multiple real-time speeds correspond one-to-one with the multiple detection time periods; Data processing is performed on multiple real-time speeds to obtain the speed change.

3. The method according to claim 2, characterized in that, The process of processing multiple real-time speeds to obtain the speed change includes: Determine the maximum value among the multiple real-time speeds to obtain the maximum real-time speed; Determine the minimum value among the multiple real-time speeds to obtain the minimum real-time speed; The difference between the maximum real-time speed and the minimum real-time speed is determined to obtain the speed change.

4. The method according to claim 2, characterized in that, The process of processing multiple real-time speeds to obtain the speed change includes: Establish a speed detection model corresponding to the rolling mill; Multiple real-time velocities are input into the velocity detection model to obtain the velocity change output by the velocity detection model.

5. The method according to claim 2, characterized in that, The process of processing multiple real-time speeds to obtain the speed change includes: Based on the multiple real-time velocities, establish a velocity distribution curve; The amount of velocity change is determined based on the magnitude of the change in the velocity distribution curve.

6. The method according to any one of claims 1 to 5, characterized in that, After controlling the mill to output alarm information, the method includes: Control the rolling mill to stop working.

7. The method according to any one of claims 2 to 5, characterized in that, The detection of the moving speed of the steel includes: The moving speed of the steel is detected at preset detection time intervals; The method for controlling the mill to output alarm information includes: Within a preset alarm duration, the rolling mill is controlled to output alarm information; wherein the total duration of the preset alarm duration and the preset detection duration is less than or equal to the detection time interval.

8. A detection device for a rolling mill, characterized in that, The device includes: The acquisition unit is used to detect the moving speed of the steel during the rolling process of the rolling mill, so as to obtain the speed change of the steel within a preset detection time. A processing unit is configured to determine the ratio between the speed change and the pre-acquired inlet speed to obtain a speed ratio; wherein the inlet speed is the speed at which the steel enters the inlet of the rolling mill; The control unit is used to control the mill to output alarm information when the speed ratio is greater than a preset threshold.

9. A detection device for a rolling mill, characterized in that, include: processor; A memory containing programs or instructions, wherein a processor, when executing the programs or instructions in the memory, implements the steps of the detection method for the rolling mill as described in any one of claims 1 to 7.

10. A readable storage medium, characterized in that, A program or instructions are stored on a readable storage medium, which, when executed by a processor, implement the steps of the detection method for the rolling mill as described in any one of claims 1 to 7.

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