A method, device, medium and equipment for controlling rolling rhythm

Abstract

The application provides a rolling rhythm control method, device, medium and equipment, and the method comprises the following steps: controlling the head of a to-be-sized wide slab to run to the entry roller way of a sizing mill to wait for sizing the to-be-sized wide slab; if there is a to-be-rolled slab between the entry roller way of a rolling mill and the rolling mill, and the to-be-rolled slab is in the first pass rolling, timing is performed after the edger rolls bite the to-be-rolled slab; if the timing reaches a set time, the to-be-sized wide slab is controlled to enter the sizing mill to be sized. The application solves the problem that the rolling rhythm is not well controlled due to the change of the length of the slab in the rolling mill production line, thereby affecting the production efficiency of the rolling mill production line. The scheme provided by the application can effectively control the rolling rhythm according to the length of the slab, reduce the waiting time of the next slab when the previous slab is rolled, improve the production efficiency, reduce the production cost, and ensure the high-quality and stable production of the rolling production line.

Description

Technical Field

[0001] This application relates to the field of steel rolling technology, and in particular to a method, device, medium and equipment for controlling the rhythm of steel rolling. Background Technology

[0002] When the width-fixing mill is in width-fixing mode, the interlocking condition for the slab to enter the mill is a 5-second delay after the previous slab bites into the mill. If the length of the slab rolled by the mill is shorter than the length of the next slab to be width-fixed at the mill's entrance, it will result in a longer mill waiting time, directly affecting the production efficiency of the mill line. A larger feed gap will increase production costs such as electricity and fuel consumption, indirectly impacting environmental regulations. Therefore, ensuring the next slab enters the width-fixing mill earlier and is transported to the mill when the slab length changes, thus reducing waiting time, is a key and challenging issue. It directly affects the capacity and efficiency of the rolling mill and is crucial for improving efficiency and reducing production costs.

[0003] Therefore, in continuous production, how to effectively control the rolling rhythm, reduce the waiting time of the next slab while the previous slab is being rolled, and ensure high-quality and stable production on the rolling production line is an urgent technical problem to be solved. Summary of the Invention

[0004] The purpose of this application is to provide a rolling rhythm control method, device, medium and equipment. This application solves the problem that the rolling rhythm is difficult to control due to changes in the length of the slab in the rolling mill production line, which affects the production efficiency of the rolling mill production line. The solution proposed in this application can effectively control the rolling rhythm according to the length of the slab, reduce the waiting time of the next slab when the previous slab is being rolled, improve production efficiency, reduce production costs, and ensure high-quality and stable production of the rolling production line.

[0005] Specifically, this application adopts the following technical solution:

[0006] According to one aspect of the embodiments of this application, a steel rolling rhythm control method is provided, the method comprising: controlling the head of a slab to be widened to run to the inlet roller table of the width-fixing mill to wait for the width of the slab to be widened; if there is a slab to be rolled in the area between the inlet roller table and the mill, and the slab to be rolled is in the first rolling pass, timing is started after the vertical roller bites the slab to be rolled; if the timing reaches a set time, the slab to be widened is controlled to enter the width-fixing mill for width fixing.

[0007] In some embodiments of this application, based on the foregoing scheme, the method further includes: if there is no slab to be rolled in the area between the width-fixing mill inlet roller table and the rolling mill, then controlling the slab to be width-fixed to enter the width-fixing mill for width fixing.

[0008] In some embodiments of this application, based on the foregoing scheme, before controlling the slab to be widened to enter the width-fixing machine for width fixing, the method further includes: obtaining the length of the slab to be widened to and the length of the slab to be rolled; if the length of the slab to be widened to is less than or equal to the length of the slab to be rolled, then a first preset time is determined as the set time; if the length of the slab to be widened to is greater than the length of the slab to be rolled, then a second preset time is determined as the set time, wherein the first preset time is greater than the second preset time.

[0009] In some embodiments of this application, based on the aforementioned scheme, the first preset time is 7 seconds.

[0010] In some embodiments of this application, based on the foregoing scheme, the second preset time is determined by the following steps: obtaining the first preset time, the length of the undetermined width slab, and the length of the slab to be rolled; and determining the second preset time based on the first preset time, the length of the undetermined width slab, and the length of the slab to be rolled.

[0011] In some embodiments of this application, based on the foregoing scheme, the second preset time is determined by the following formula:

[0012] T2 = T1 - (Lssp - LR1) * S

[0013] Where T2 is the second preset time, T1 is the first preset time, Lssp is the length of the undetermined width slab, LR1 is the length of the slab to be rolled, and S is the adjustment coefficient.

[0014] In some embodiments of this application, based on the foregoing scheme, the adjustment coefficient S is 1 to 1.5.

[0015] According to one aspect of the embodiments of this application, a steel rolling rhythm control device is provided, the device comprising: a first control unit, configured to control the head of a slab to be rolled to run to the inlet roller table of the width-fixing mill to wait for the width of the slab to be rolled to be fixed; a timing unit, configured to start timing after the vertical roll bites the slab to be rolled when there is a slab to be rolled in the area between the inlet roller table and the mill, and the slab to be rolled is in the first rolling pass; and a second control unit, configured to control the slab to be rolled to enter the width-fixing mill for width fixing when the timing reaches a set time.

[0016] According to one aspect of the embodiments of this application, a computer-readable storage medium is provided, wherein at least one piece of program code is stored in the computer-readable storage medium, the at least one piece of program code being loaded and executed by a processor to implement the operations performed by the rolling mill rhythm control method as described above.

[0017] According to one aspect of the present application, an electronic device is provided, including a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the operations performed by the rolling mill rhythm control method as described above.

[0018] As can be seen from the above technical solution, this application has at least the following advantages and positive effects:

[0019] The proposed solution can solve the problem of poor rolling rhythm control caused by changes in slab length in the rolling mill production line, which affects the production efficiency of the rolling mill production line. The proposed solution can effectively control the rolling rhythm according to the slab length, reduce the waiting time of the next slab while the previous slab is being rolled, improve production efficiency, reduce production costs, and ensure high-quality and stable production of the rolling production line. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A method flowchart of one embodiment of this application is shown;

[0022] Figure 2 A schematic diagram of the descaling machine, width-fixing mill, and rolling mill area in one embodiment of this application is shown;

[0023] Figure 3 A structural block diagram of a steel rolling rhythm control device according to one embodiment of this application is shown;

[0024] Figure 4 A schematic diagram of the structure of a computer system suitable for implementing the embodiments of this application is shown;

[0025] The accompanying diagrams and their labels are explained below:

[0026] 201—Post-furnace descaling machine; 202—Descaling manifold.

[0027] 203—Dephosphorization roller conveyor; 204—Width measuring instrument.

[0028] 205—Hot metal detector; 206—Wide slab to be determined.

[0029] 207—Inlet roller conveyor of the width fixing machine; 208—Width fixing machine;

[0030] 209—Inlet pinch roller of the width sizing machine; 210—Inlet guide roller of the width sizing machine;

[0031] 211—Exit guide roller of the width stabilizing machine; 212—Exit pinch roller of the width stabilizing machine;

[0032] 213—Exit roller table of the width-fixing mill; 214—Inlet roller table of the rolling mill;

[0033] 215—Slab to be rolled; 216—Vertical roll;

[0034] 217—Descaling machine at the mill inlet; 218—Mill. Detailed Implementation

[0035] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0036] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0037] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such uses of these terms can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described.

[0039] The implementation details of the technical solutions in the embodiments of this application are described in detail below:

[0040] Reference Figure 1 , Figure 1 This is a flowchart of a steel rolling rhythm control method in one embodiment of this application.

[0041] In this application, when the slab is heated in the furnace, oxygen in the air reacts with the iron in the heated slab, forming a thick layer of iron oxide scale. To ensure the quality of the slab, a descaling machine is used after the slab exits the furnace to remove the iron oxide scale generated in the furnace. The descaling machine can use water at 220 bar pressure to remove the furnace-generated iron oxide scale from the slab surface. The descaling machine includes two sets of descaling manifolds, arranged symmetrically above and below. After removing the iron oxide scale from the slab, a width-fixing machine is used to fix the width of the slab so that the slab specifications meet the requirements of subsequent production. After the slab width is fixed, the slab is controlled to pass through the descaling machine at the mill inlet for descaling. After descaling, the slab enters the mill for rolling.

[0042] In actual production, when the width-fixing mill is in width-fixing mode, the interlocking condition for the slab to enter the mill is that the previous slab bites the first stand of the rolling mill after a 5-second delay. If the length of the slab to be rolled is shorter than the length of the next slab, it will cause the mill to wait for a long time, which will directly affect the production efficiency of the mill production line. If the steel feed gap is too large, it will increase production costs such as electricity consumption and fuel consumption, and indirectly affect environmental protection control.

[0043] According to a typical embodiment of this application, a method for controlling the rhythm of steel rolling is provided, the method comprising the following steps S1 to S3:

[0044] Step S1: Control the head of the slab to be widened to run to the inlet roller conveyor of the width-fixing machine to wait for the width of the slab to be widened.

[0045] In this application, before the width determination of the slab is carried out, the iron oxide scale on the surface is removed in the dephosphorizer after the furnace. Then, the head of the slab is controlled to run to the inlet roller table of the width determination machine, so as to wait for the slab to be run to the width determination machine for width determination.

[0046] Step S2: If there is a slab to be rolled in the area between the mill inlet roller table and the mill, and the slab to be rolled is in the first rolling pass, timing is started after the vertical roller bites the slab to be rolled.

[0047] In this application, when the slab to be rolled is waiting at the entrance roller table of the width-fixing mill, the area between the entrance roller table and the mill can be detected. If there is a slab to be rolled in the area between the entrance roller table and the mill, and the slab to be rolled is in the first rolling pass, the timing is started after the vertical roll bites the slab to be rolled.

[0048] Step S3: If the timing reaches the set time, control the blank to be width-determined to enter the width-determining machine for width determination.

[0049] In this application, timing is performed after the vertical roller bites the slab to be rolled. If the timing reaches a preset time, the slab to be widened waiting in the width-fixing mill entrance roller table can enter the width-fixing mill for width fixing, and the slab to be widened is controlled to enter the width-fixing mill for width fixing.

[0050] In one embodiment of this application, the method further includes:

[0051] If there is no slab to be rolled in the area between the inlet roller table of the width sizing mill and the rolling mill, then the slab to be width sizing is controlled to enter the width sizing mill for width sizing.

[0052] In this application, when the slab to be widened is waiting at the entrance roller table of the width-fixing mill, the area between the entrance roller table of the mill and the mill can be detected. If it is detected that there is no slab to be rolled in the area between the entrance roller table of the width-fixing mill and the mill, the slab to be widened can be controlled to enter the width-fixing mill for width fixing.

[0053] In one embodiment of this application, before controlling the slab to be width-defined to enter the width-defined machine for width determination, the method further includes:

[0054] Obtain the length of the slab of unknown width and the length of the slab to be rolled.

[0055] If the length of the undetermined width slab is less than or equal to the length of the slab to be rolled, then the first preset time is determined as the set time.

[0056] If the length of the undetermined width slab is greater than the length of the slab to be rolled, then the second preset time is determined as the set time, and the first preset time is greater than the second preset time.

[0057] In this application, on the slab production line, the lengths of two consecutive slabs may not be equal. It is possible that the length of the slab to be rolled is shorter than the length of the slab to be widened, which will result in a longer waiting time for the rolling mill. The rolling mill still consumes energy during the waiting time, which directly affects the production efficiency of the rolling mill production line. Therefore, it is necessary to determine the time when the slab to be widened enters the width-fixing mill based on the length of the slab to be rolled and the length of the slab to be widened, control the rolling rhythm, and shorten the steel feeding gap of the next slab after the previous slab is rolled.

[0058] In this application, before controlling the slab to be widened to enter the width-fixing mill for width fixing, the lengths of the slab to be widened to and the slab to be rolled can be obtained first. The lengths of the slab to be widened to and the slab to be rolled are compared. If the length of the slab to be widened to and the slab to be rolled is less than or equal to the length of the slab to be rolled, a first preset time is determined as the set time. When the timer reaches the set time (first preset time), the slab to be widened to and the slab to be widened is controlled to enter the width-fixing mill for width fixing. If the length of the slab to be widened to and the slab to be rolled is greater than the length of the slab to be rolled, a second preset time is determined as the set time. When the timer reaches the set time (second preset time), the slab to be widened to and the slab to be widened is controlled to enter the width-fixing mill for width fixing. The first preset time can be greater than the second preset time.

[0059] In one embodiment of this application, the first preset time can be 7 seconds. This application does not impose any particular limitation on the value of the first preset time, and it can be adjusted according to actual production needs.

[0060] In one embodiment of this application, the second preset time is determined by the following steps:

[0061] Obtain the first preset time, the length of the undetermined width slab, and the length of the slab to be rolled;

[0062] Based on the first preset time, the length of the undetermined width slab, and the length of the slab to be rolled, a second preset time is determined.

[0063] In one embodiment of this application, the second preset time can be determined by the following formula:

[0064] T2 = T1 - (Lssp - LR1) * S

[0065] Where T2 is the second preset time, T1 is the first preset time, Lssp is the length of the undetermined width slab, LR1 is the length of the slab to be rolled, and S is the adjustment coefficient.

[0066] In one embodiment of this application, the adjustment coefficient S can be 1 to 1.5. This application does not impose any special restrictions on the adjustment coefficient S, and it can be adjusted according to the needs in actual production.

[0067] The specific implementation of this application will be further illustrated by specific embodiments below, but the specific implementation of this application is not limited to the following embodiments.

[0068] Reference Figure 2 , Figure 2 A schematic diagram of the descaling machine, width-fixing mill, and rolling mill area in one embodiment of this application is shown.

[0069] In one specific embodiment of this application, such as Figure 2 The diagram shows the area of ​​the descaling machine, width-fixing mill, and rolling mill. It should be noted that although only one rolling mill, 218, is clearly shown in the diagram, it can be understood that 218 is only the first rolling mill in the rolling mill area, and there are other rolling mills behind it.

[0070] Continue to refer to Figure 2 After the slab of undetermined width 206 exits the furnace, it is controlled to run onto the descaling roller conveyor 203. The descaling roller conveyor 203 carries the slab of undetermined width 206 into the furnace descaling machine 201 to remove the iron oxide scale from its surface. The descaling roller conveyor speed can be 1.3 m / s. High-pressure water can be used to remove the iron oxide scale from the surface of the slab of undetermined width 206 through the descaling manifold 202. After descaling, the slab of undetermined width 206 is transported out of the furnace descaling machine 201 via the descaling roller conveyor 203. A width detector 204 is installed at the outlet of the furnace descaling machine 201 to detect the width of the slab of undetermined width 206, facilitating subsequent width determination of the slab of undetermined width 206.

[0071] Continue to refer to Figure 2 After the width detector 204 detects the width of the slab 206 to be widened, the head of the slab 206 is controlled to move to the inlet roller conveyor 207 of the width stabilizing machine to wait for the width stabilization of the slab 206. A hot metal detector 205 can be installed on the inlet roller conveyor 207 of the width stabilizing machine to detect the position of the slab 206 to be widened and whether there is a slab on the inlet roller conveyor 207 of the width stabilizing machine. After the hot metal detector 205 detects the slab, the slab 206 to be widened stops, the side guide plate closes to center the slab, and after centering, the side guide plate opens to a state greater than the width of the slab by 200mm. When the head of the slab 206 to be widened reaches the width-fixing mill inlet roller table 207 for width-fixing waiting, the area between the mill inlet roller table 214 and the mill 218 can be detected. If there is a slab 215 to be rolled in the area between the mill inlet roller table 214 and the mill 218, and the slab 215 to be rolled is in the first rolling pass, a timer is started after the vertical roller 216 bites the slab 215 to be rolled; if the timer reaches the set time, the slab 206 to be widened is controlled to enter the width-fixing mill 208 for width-fixing.

[0072] In one specific embodiment of this application, it should be noted that, as described above, when the head of the slab 206 to be widened reaches the width-fixing mill inlet roller table 207 for width-fixing waiting, there is another situation where, when the head of the slab 206 to be widened reaches the width-fixing mill inlet roller table 207 for width-fixing waiting, the area between the width-fixing mill inlet roller table 207 and the rolling mill 218 can be detected. If there is no slab 215 to be rolled in the area between the width-fixing mill inlet roller table 207 and the rolling mill 218, the slab 206 to be widened is controlled to enter the width-fixing mill 208 for width-fixing without waiting.

[0073] Continue to refer to Figure 2 Before the slab to be widened 206 enters the width-fixing mill 208 for width fixing, considering the presence of slabs to be rolled 215 in the area between the mill inlet roller table 214 and the mill 218, and the slab to be rolled 215 being in the first rolling pass, since the lengths of each consecutive slab may not be equal, the length of the slab to be rolled 215 may be shorter than the length of the slab to be widened 206, resulting in a longer waiting time in the mill 218 and directly affecting the production efficiency of the mill line, the time for the slab to be widened 206 to enter the width-fixing mill 208 for width fixing can be set according to the specific situation of the length of the rolled slab and the length of the slab to be widened 206.

[0074] The lengths of the undetermined width slab 206 and the slab 215 to be rolled can be obtained. If the length of the undetermined width slab 206 is less than or equal to the length of the slab 215 to be rolled, then a first preset time (which can be 7s, 7.5s, or 6.5s, and this application does not impose any particular restriction on it, but can be adjusted according to the actual situation) is determined as the set time. If the length of the undetermined width slab 206 is greater than the length of the slab 215 to be rolled, then a second preset time is determined as the set time, and the first preset time is greater than the second preset time.

[0075] Continue to refer to Figure 2 The second preset time can be determined through the following steps 11 to 12:

[0076] Step 11: Obtain the first preset time, the length of the undetermined width slab 206, and the length of the slab 215 to be rolled.

[0077] Step 12: Based on the first preset time, the length of the undetermined width slab 206, and the length of the slab 215 to be rolled, determine the second preset time.

[0078] Continue to refer to Figure 2In one specific embodiment of this application, it should be noted that the second preset time can be determined by the following formula:

[0079] T2 = T1 - (Lssp - LR1) * S

[0080] Wherein, T2 is the second preset time, T1 is the first preset time, Lssp is the length of the undetermined width slab 206, LR1 is the length of the slab 215 to be rolled, and S is the adjustment coefficient, which can be 1 to 1.5.

[0081] Continue to refer to Figure 2 When the timer reaches the set time, the slab 206 to be width-set enters the width-setting machine 208 through the width-setting machine inlet roller conveyor 207 for width setting. The width-setting machine 208 includes a width-setting machine inlet pinch roller 209, a width-setting machine inlet guide roller 210, a width-setting machine outlet guide roller 211, and a width-setting machine outlet pinch roller 212. The width-setting machine inlet pinch roller 209 and the width-setting machine outlet pinch roller 212 are symmetrically distributed vertically and vertically, and can be used to clamp the slab during the width setting process. The width-setting machine inlet guide roller 210 and the width-setting machine outlet guide roller 211 are symmetrically distributed vertically and vertically, and can be used to prevent the slab from detaching upwards or downwards during the width setting process.

[0082] In one specific embodiment of this application, the inlet pinch roll 209 of the width-fixing mill can clamp and transport the slab through the inlet guide roll 210, the outlet guide roll 211, and the outlet pinch roll 212 of the width-fixing mill in a "walk-stop" mode. During the walk-stop process, the hammers on both sides of the width-fixing mill 208 squeeze the slab to reduce its width (the "walk-stop" mode means that the hammers on both sides of the width-fixing mill 208 do not squeeze the slab when the slab is moving, but squeeze the slab when the slab stops moving, so as to fix the slab to a set width). After the slab is widened by the width-fixing mill 208, it passes through the outlet roller table 213 and reaches the mill inlet roller table 214. After passing through the vertical roll 216, which can control the width of the slab, it reaches the mill 218 for rolling after the secondary iron oxide scale on the surface of the slab is removed by the mill inlet descaling machine 217, so as to roll the slab to the target thickness.

[0083] In a specific embodiment of this application, it should be noted that in the width-fixing mode, the width-fixing machine operates in a "walk-stop" mode during the width-fixing process, and the main drive system of the width-fixing machine has only one main motor. Through the drive shaft and universal joint, the torque is evenly distributed to the two hammers via an eccentric wheel device to complete the extrusion action. The two hammers of the width-fixing machine act on the two sides of the slab in opposite directions; the two hammers reciprocate. After the slab stops, during the hammer closing process, the slab is extruded within a certain range. During the hammer opening process, the hammers lose contact with the slab, and the slab can be conveyed forward, allowing the portion of the slab whose width has not decreased to enter the area that the hammers can act upon. The length of each step the slab takes can be 400mm, and the maximum width reduction of the slab can be 350mm.

[0084] The following describes an embodiment of the apparatus described in this application, which can be used to execute the rolling rhythm control method in the above embodiments of this application. For details not disclosed in the apparatus embodiments of this application, please refer to the embodiments of the rolling rhythm control method described above in this application.

[0085] Figure 3 This is a structural block diagram of a steel rolling rhythm control device according to an embodiment of this application.

[0086] Reference Figure 3 As shown, according to one embodiment of the present application, the rolling mill rhythm control device 300 includes a coiler condition monitoring device comprising: a first control unit 301, a timing unit 302, and a second control unit 303.

[0087] The first control unit 301 is used to control the head of the slab to be widened to run to the inlet roller table of the width-fixing machine, so as to wait for the width of the slab to be widened.

[0088] The timing unit 302 is used when there is a slab to be rolled in the area between the mill entrance roller table and the mill, and the slab to be rolled is in the first rolling pass, and timing is started after the vertical roller bites the slab to be rolled.

[0089] The second control unit 303 is used to control the slab to be width-fixed to enter the width-fixing machine for width-fixing when the timer reaches the set time.

[0090] Reference Figure 4 , Figure 4 A schematic diagram of the structure of a computer system suitable for implementing the electronic device of the present application is shown.

[0091] like Figure 4As shown, the computer system 400 includes a Central Processing Unit (CPU) 401, which can perform various appropriate actions and processes based on programs stored in Read-Only Memory (ROM) 402 or programs loaded from storage portion 408 into Random Access Memory (RAM) 403, such as performing the methods described in the above embodiments. The RAM 403 also stores various programs and data required for system operation. The CPU 1101, ROM 402, and RAM 403 are interconnected via a bus 404. An Input / Output (I / O) interface 405 is also connected to the bus 404.

[0092] The following components are connected to I / O interface 405: an input section 406 including a keyboard, mouse, etc.; an output section 407 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to I / O interface 405 as needed. A removable medium 411, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 410 as needed so that computer programs read from it can be installed into storage section 408 as needed.

[0093] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 409, and / or installed from removable medium 411. When the computer program is executed by central processing unit (CPU) 401, it performs various functions defined in the system of this application.

[0094] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such transmitted data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0095] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0096] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0097] According to a typical embodiment of this application, this application also proposes a computer-readable storage medium storing at least one piece of program code, which is loaded and executed by a processor to implement the operations performed by the rolling mill rhythm control method as described above.

[0098] According to a typical embodiment of this application, this application also proposes an electronic device, which includes a memory and a processor, wherein the memory stores a computer program, characterized in that the processor executes the computer program to implement the operations performed by the rolling mill rhythm control method as described above.

[0099] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0100] As can be seen from the above technical solution, this application has at least the following advantages and positive effects:

[0101] Firstly, the proposed solution can solve the problem of poor control of rolling rhythm caused by changes in slab length in the rolling mill production line, which affects the production efficiency of the rolling mill production line. The proposed solution can effectively control the rolling rhythm according to the slab length, reduce the waiting time of the next slab while the previous slab is being rolled, improve production efficiency, reduce production costs, and ensure high-quality and stable production of the rolling production line.

[0102] Secondly, adopting the solution proposed in this application can ensure high-quality production on the production line, improve product quality and production efficiency, and increase market competitiveness and financial returns.

[0103] Third, the proposed solution can reduce the rolling mill waiting time by 1 to 7 seconds compared to the prior art, thereby improving the production efficiency of the rolling production line, saving production costs such as electricity and fuel consumption, and indirectly achieving environmental protection effects.

[0104] Although this application has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since this application can be embodied in many forms without departing from the spirit or substance of the application, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A method for controlling the rhythm of steel rolling, characterized in that, The method includes: The head of the slab to be width determined is controlled to move to the inlet roller conveyor of the width determination machine to wait for the width determination of the slab to be width determined; If there is a slab to be rolled in the area between the mill inlet roller table and the mill, and the slab to be rolled is in the first rolling pass, the timing is started after the vertical roller bites the slab to be rolled. If the timing reaches the set time, the blank to be width determined is controlled to enter the width determination machine for width determination; The method further includes: If there is no slab to be rolled in the area between the inlet roller table of the width-fixing mill and the rolling mill, then the slab to be width-fixed is controlled to enter the width-fixing mill for width fixing; Before the slab to be width-defined enters the width-defined machine for width determination, the method further includes: Obtain the length of the slab of unknown width and the length of the slab to be rolled; If the length of the undetermined width slab is less than or equal to the length of the slab to be rolled, then the first preset time is determined as the set time; If the length of the undetermined width slab is greater than the length of the slab to be rolled, then the second preset time is determined as the set time, and the first preset time is greater than the second preset time.

2. The method according to claim 1, characterized in that, The first preset time is 7 seconds.

3. The method according to claim 1, characterized in that, The second preset time is determined by the following steps: Obtain the first preset time, the length of the undetermined width slab, and the length of the slab to be rolled; Based on the first preset time, the length of the undetermined width slab, and the length of the slab to be rolled, a second preset time is determined.

4. The method according to claim 3, characterized in that, The second preset time is determined using the following formula: in, For the second preset time, The first preset time, The length of the undetermined wide slab. The length of the slab to be rolled is... This is for adjusting the coefficient.

5. The method according to claim 4, characterized in that, The adjustment coefficient It is 1~1.

5.

6. A rolling mill rhythm control device, used to implement the rolling mill rhythm control method as described in any one of claims 1 to 5, characterized in that, The device includes: The first control unit is used to control the head of the slab to be widened to run to the inlet roller table of the width-fixing machine, so as to wait for the width of the slab to be widened; The timing unit is used when there is a slab to be rolled in the area between the mill inlet roller table and the mill, and the slab is in the first rolling pass, and timing is started after the vertical roll bites the slab; The second control unit is used to control the slab to be width-fixed to enter the width-fixing machine for width fixing when the timer reaches the set time.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one piece of program code, which is loaded and executed by a processor to perform the operations performed by the method as described in any one of claims 1 to 5.

8. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it performs the operations described in any one of claims 1 to 5.

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