A control method, device and computer equipment for strip finishing rolling equipment

Abstract

The present application provides a control method for strip finishing equipment, the method comprising: obtaining initial strip parameters and target strip parameters, the initial strip parameters are used to characterize the specifications of the strip before finishing, and the target strip parameters are used to characterize the target specifications of the strip after finishing; according to the initial strip parameters and the target strip parameters, select some cooling water spray devices in the cooling water spray devices located after a certain finishing mill as target cooling water spray devices; control the target cooling water spray devices to cool the strip; when the steel throwing signal from the last finishing mill is detected, close one or more cooling water spray devices in the target cooling water spray devices. The present application accurately controls the temperature of the strip head to a certain extent, avoids fluctuations in the performance of the strip head, reduces the subsequent cutting length, reduces production costs, and ultimately improves finishing efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of steel rolling, and in particular to a control method, device and computer equipment for strip finishing rolling equipment. Background Art

[0002] The temperature hit rate of the head of hot-rolled thin-gauge strip is a key factor affecting the stability of the head performance. Since the thin-gauge strip is threaded at a low speed during the rolling process, the temperature of the strip decreases faster as the thickness of the strip becomes thinner, causing the head temperature to fail to reach the target temperature, resulting in fluctuations in the head performance.

[0003] Therefore, technical personnel in this field urgently need a control method for strip finishing equipment to accurately control the temperature of the strip head, thereby avoiding fluctuations in strip head performance, reducing subsequent cutting length, reducing production costs, and improving finishing efficiency. Summary of the invention

[0004] The embodiments of the present application provide a control method, device and computer equipment for strip finishing equipment, which can accurately control the temperature of the strip head at least to a certain extent, avoid fluctuations in the performance of the strip head, reduce subsequent cutting length, reduce production costs, and ultimately improve finishing efficiency.

[0005] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0006] According to one aspect of the present application, a control method for strip finishing equipment is provided, the strip finishing equipment comprising M finishing mills arranged in sequence, wherein a cooling water spray device is arranged between each two adjacent finishing mills, and M is an integer greater than or equal to 2, and the method comprises: obtaining initial strip parameters and target strip parameters, the initial strip parameters are used to characterize the specifications of the strip before finishing rolling, and the target strip parameters are used to characterize the target specifications of the strip after finishing rolling; according to the initial strip parameters and the target strip parameters, selecting some cooling water spray devices in the cooling water spray devices located after the Nth finishing mill as target cooling water spray devices, where N is a positive integer less than M; controlling the target cooling water spray devices to perform cooling treatment on the strip; and when a steel throwing signal emitted by the Mth finishing mill is detected, closing one or more cooling water spray devices in the target cooling water spray devices.

[0007] In some embodiments of the present application, the initial strip parameters include but are not limited to the steel type of the strip, the initial temperature of the strip, the initial thickness of the strip, and the target width of the strip; the target strip parameters include but are not limited to the target temperature of the strip, the target thickness of the strip, and the target width of the strip.

[0008] In some embodiments of the present application, the target cooling water spray device is controlled to cool the strip, including: obtaining the strip outlet temperature at the outlet of the Mth finishing mill in real time; if the strip outlet temperature is higher than or equal to the target temperature of the strip, the target cooling water spray device is controlled to increase the spraying amount; if the strip outlet temperature is lower than the target temperature of the strip, the target cooling water spray device is controlled to reduce the spraying amount.

[0009] In some embodiments of the present application, the method also includes: acquiring in real time the strip outlet temperature at the outlet of the Mth finishing mill; if the strip outlet temperature is higher than or equal to the target temperature of the strip, controlling the finishing rolling equipment to reduce the finishing speed; if the strip outlet temperature is lower than the target temperature of the strip, controlling the finishing rolling equipment to increase the finishing speed.

[0010] In some embodiments of the present application, the method also includes: if a steel biting signal is detected from the Mth finishing mill, controlling the finishing rolling equipment to increase the finishing speed; obtaining the strip outlet temperature at the outlet of the Mth finishing mill in real time, and if it is detected that the strip outlet temperature reaches the target temperature of the strip, controlling the finishing rolling equipment to stop increasing the finishing speed.

[0011] In some embodiments of the present application, some cooling water spray devices are selected from the cooling water spray devices located after the Nth finishing mill as target cooling water spray devices, where N is a positive integer less than M, including: reading a cooling schedule table to determine the N value and a selection scheme for the target cooling water spray device, the cooling schedule table recording different parameter combinations of the initial strip parameters and the target strip parameters, and the N value and the selection scheme for the target cooling water spray device corresponding to each parameter combination; if a steel biting signal is detected from the Nth finishing mill, the target cooling water spray device is controlled to cool the strip.

[0012] In some embodiments of the present application, the target cooling water spray device is controlled to spray to the upper surface and the lower surface of the steel strip at the same time, so as to perform a temperature reduction treatment on the upper surface and the lower surface of the steel strip at the same time.

[0013] According to one aspect of the present application, a control device for strip finishing equipment is provided, wherein the strip finishing equipment comprises M finishing mills arranged in sequence, wherein a cooling water spray device is arranged between each two adjacent finishing mills, and M is an integer greater than or equal to 2, and the device comprises: an acquisition unit, used to acquire initial strip parameters and target strip parameters, wherein the initial strip parameters are used to characterize the specifications of the strip before finishing rolling, and the target strip parameters are used to characterize the target specifications of the strip after finishing rolling; a selection unit, used to select part of the cooling water spray devices in the cooling water spray devices behind the Nth finishing mill as target cooling water spray devices according to the initial strip parameters and the target strip parameters, and N is a positive integer less than M; a first control unit, used to control the target cooling water spray devices to cool the strip; and a second control unit, used to turn off one or more cooling water spray devices in the target cooling water spray devices when a steel throwing signal from the Mth finishing mill is detected.

[0014] According to one aspect of the present application, a computer-readable storage medium is provided, in which at least one program code is stored. The at least one program code is loaded and executed by a processor to implement the operations performed by the control method of the strip finishing equipment as described.

[0015] According to one aspect of the present application, a computer device is provided, which includes one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by the control method of the strip finishing equipment as described.

[0016] Based on the above scheme, this application has at least the following advantages or improved effects:

[0017] The present application provides a control method for strip finishing equipment, which determines the cooling scheme for the strip by analyzing the initial strip parameters and the target strip parameters, and only controls a number of cooling water spray devices to cool the strip, thereby avoiding a significant drop in the temperature of the strip head, which causes the performance fluctuation of the strip head. The technical solution provided by the present application can effectively control the temperature of the strip head, thereby reducing the cutting length of the strip head in subsequent processes, reducing production costs, and ultimately improving the finishing efficiency.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application, and together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0020] Figure 1 A simplified flow chart of a control method for a strip steel finishing rolling equipment in one embodiment of the present application is shown;

[0021] Figure 2 A simplified flow chart of a control method for a strip steel finishing rolling equipment in one embodiment of the present application is shown;

[0022] Figure 3 A simplified flow chart of a control method for a strip steel finishing rolling equipment in one embodiment of the present application is shown;

[0023] Figure 4 A simplified flow chart of a control method for a strip steel finishing rolling equipment in one embodiment of the present application is shown;

[0024] Figure 5 A simplified flow chart of a control method for a strip steel finishing rolling equipment in one embodiment of the present application is shown;

[0025] Figure 6 A simplified diagram of a strip steel finishing equipment in one embodiment of the present application is shown;

[0026] Figure 7 A simplified structural diagram of a strip steel finishing rolling equipment control device in one embodiment of the present application is shown;

[0027] Figure 8 A schematic diagram of the structure of a computer system suitable for implementing the control method of the strip steel finishing rolling equipment in the embodiment of the present application is shown. DETAILED DESCRIPTION

[0028] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0029] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0030] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities may be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0031] The flowcharts shown in the accompanying drawings are only exemplary and do not necessarily include all the contents and operations / steps, nor must they be executed in the order described. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined, so the actual execution order may change according to actual conditions.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those shown or described.

[0033] Next, the technical solution of the present application will be described in detail with reference to the accompanying drawings.

[0034] See also Figure 1 , Figure 1 A simplified flow chart of a control method for a strip steel finishing mill in an embodiment of the present application is shown, wherein the strip steel finishing mill comprises M finishing mills arranged in sequence, wherein a cooling water spraying device is provided between each two adjacent finishing mills, and M is an integer greater than or equal to 2. The method comprises steps S101-S104:

[0035] Step S101, obtaining initial strip steel parameters and target strip steel parameters, wherein the initial strip steel parameters are used to characterize the specifications of the strip steel before finish rolling, and the target strip steel parameters are used to characterize the target specifications of the strip steel after finish rolling.

[0036] Step S102, according to the initial parameters of the steel strip and the target parameters of the steel strip, select some cooling water spray devices in the cooling water spray devices located after the Nth finishing mill as target cooling water spray devices, where N is a positive integer less than M.

[0037] Step S103, controlling the target cooling water spraying device to perform a cooling treatment on the steel strip.

[0038] Step S104, when a steel throwing signal is detected from the Mth finishing mill, one or more cooling water spray devices in the target cooling water spray devices are turned off.

[0039] In the present application, by analyzing the initial strip parameters and the target strip parameters, the cooling scheme for the strip can be determined. It is only necessary to control a number of cooling water spray devices to cool the strip to avoid a significant drop in the temperature of the strip head, which leads to fluctuations in the performance of the strip head. In addition, the technical solution provided by the present application can effectively control the temperature of the strip head, thereby reducing the length of the strip head removed in subsequent processes, reducing production costs, and ultimately improving the finishing efficiency. Furthermore, the technical solution provided by the present application does not require the forced opening of all cooling devices. Compared with traditional methods, it can save a lot of cooling water, effectively reduce production costs, and improve economic benefits.

[0040] In some embodiments of the present application, the initial strip parameters include but are not limited to the steel type of the strip, the initial temperature of the strip, the initial thickness of the strip, and the target width of the strip; the target strip parameters include but are not limited to the target temperature of the strip, the target thickness of the strip, and the target width of the strip.

[0041] In this application, different cooling schemes are adopted mainly according to the difference between the initial strip parameters and the target strip parameters. For example, the parameters of the existing steel billets A and B to be finished rolled can be as shown in Table 1:

[0042] Table 1

[0043]

[0044] For the same set of strip finishing equipment, steel coils with different parameters need to be produced, so the opening plan of the spray water device needs to be adjusted according to different parameters.

[0045] See also Figure 2 , Figure 2 A simplified flow chart of a control method for a strip steel finishing mill in an embodiment of the present application is shown. The method of controlling the target cooling water spraying device to cool the strip steel may include steps S201-S203:

[0046] Step S201, obtaining in real time the strip outlet temperature at the outlet of the Mth finishing mill.

[0047] Step S202: If the strip outlet temperature is higher than or equal to the target temperature of the strip, control the target cooling water spray device to increase the spraying amount.

[0048] Step S203: If the strip outlet temperature is lower than the target strip temperature, control the target cooling water spray device to reduce the spraying amount.

[0049] In the present application, after the target cooling water spray device is controlled to cool the strip, the outlet temperature of the strip may be different from the target temperature. In this case, it is necessary to reduce or increase the cooling amount by adjusting the spray amount of the target spray device in order to adjust the outlet temperature of the strip to the target temperature. For example, there is a set of finishing equipment with 7 finishing mills. When finishing billet A, the 1st, 2nd, and 4th cooling water spray devices are used as the target cooling water spray devices to cool A. The outlet temperature sensor of the finishing equipment detects that the outlet temperature of A is lower than the target temperature, and the 1st, 2nd, and 4th cooling water spray devices are controlled to reduce their own spray amounts. Continue finishing rolling, the outlet temperature of A rises, and the outlet temperature sensor of the finishing equipment detects that the outlet temperature of A is higher than the target temperature, and the 1st, 2nd, and 4th cooling water spray devices are controlled to increase their own spray amounts.

[0050] Based on the above technical solution, after determining the target cooling water spray device, the present application will continue to detect the outlet temperature of the strip and adjust the spraying amount at any time to control the outlet temperature of the strip near the target temperature, thereby avoiding fluctuations in the performance of the strip head and reducing the subsequent cutting length.

[0051] See also Figure 3 , Figure 3 A simplified flow chart of a control method for a strip steel finishing rolling equipment in an embodiment of the present application is shown. The control method may further include steps S301-S303:

[0052] Step S301, obtaining in real time the strip outlet temperature at the outlet of the Mth finishing mill.

[0053] Step S302: If the strip outlet temperature is higher than or equal to the target temperature of the strip, control the finishing rolling equipment to reduce the finishing rolling speed.

[0054] Step S303: If the strip outlet temperature is lower than the target temperature of the strip, control the finishing rolling equipment to increase the finishing rolling speed.

[0055] In the present application, after the target cooling water spray device is controlled to cool the strip, the outlet temperature of the strip may be different from the target temperature. In this case, it is necessary to adjust the finishing speed to reduce or increase the cooling time in order to adjust the outlet temperature of the strip to the target temperature. For example, there is a set of finishing equipment with 7 finishing mills. When finishing billet A, the second, fifth, and sixth cooling water spray devices are used as the target cooling water spray devices to cool A. If the outlet temperature sensor of the finishing equipment detects that the outlet temperature of A is lower than the target temperature, the finishing equipment is controlled to reduce the finishing speed and increase the contact time between A and cooling water, thereby increasing the cooling amount of A. If the finishing rolling continues, the outlet temperature of A rises. If the outlet temperature sensor of the finishing equipment detects that the outlet temperature of A is higher than the target temperature, the finishing equipment is controlled to increase the finishing speed and reduce the contact time between A and cooling water, thereby reducing the cooling amount of A.

[0056] Based on the above technical solution, after determining the target cooling water spray device, the present application will continue to detect the outlet temperature of the strip and adjust the finishing speed at any time to control the outlet temperature of the strip near the target temperature, thereby avoiding fluctuations in the performance of the strip head and reducing the subsequent cutting length.

[0057] See also Figure 4 , Figure 4 A simplified flow chart of a control method for a strip steel finishing rolling equipment in an embodiment of the present application is shown. The control method may further include steps S401-S402:

[0058] S401, if a steel biting signal is detected from the Mth finishing mill, the finishing equipment is controlled to increase the finishing speed.

[0059] S402, acquiring the strip outlet temperature at the outlet of the Mth finishing mill in real time, and if it is detected that the strip outlet temperature reaches the target temperature of the strip, controlling the finishing rolling equipment to stop increasing the finishing rolling speed.

[0060] In the present application, when the bite signal from the last finishing mill is detected, it means that the entire billet has been threaded and can be stably rolled. At this time, the finishing speed needs to be increased in order to finish-roll the billet into the target coil. At the same time, the outlet temperature of the strip needs to be considered. The finishing temperature cannot be continuously increased to avoid the outlet temperature of the strip being too low below the target temperature. For example, there is a set of finishing equipment with 6 finishing mills. When finishing billet A, after the bite signal from the 6th finishing mill is detected, the finishing speed is increased in time to perform stable rolling. At the same time, the outlet temperature of A is detected. When the outlet temperature of A drops to the target temperature, the finishing speed is stopped. Finishing is performed at the finishing speed at this time, and the finishing speed is adjusted according to the outlet temperature of the strip later.

[0061] See also Figure 5 , Figure 5 A simplified flow chart of a control method for a strip steel finishing mill in an embodiment of the present application is shown. A method of selecting a portion of cooling water spray devices located after the Nth finishing mill as target cooling water spray devices, where N is a positive integer less than M, may include steps S501-S502:

[0062] S501, read the cooling schedule table to determine the N value and the selection scheme of the target cooling water spray device, wherein the cooling schedule table records parameter combinations of different initial strip parameters and target strip parameters, as well as the N value and the selection scheme of the target cooling water spray device corresponding to each parameter combination.

[0063] S502: If a steel biting signal is detected from the Nth finishing mill, the target cooling water spraying device is controlled to perform a temperature reduction treatment on the steel strip.

[0064] In this application, different cooling schemes are adopted mainly according to the difference between the initial strip parameters and the target strip parameters. For example, there are two steel billets A and B to be finished rolled, and a set of finishing equipment with 7 finishing mills. The cooling schedule of A and B can be shown in Table 2:

[0065] Table 2

[0066]

[0067] For A, the value of N may be 1, and the first, second, and fourth cooling water spray devices may be selected as target cooling water spray devices.

[0068] For B, the value of N may be 3, and the third, fifth, and sixth cooling water spray devices may be selected as target cooling water spray devices.

[0069] In this embodiment, the opening timing of the target cooling water spray device can be set, which can save the amount of cooling water to a certain extent. For example, for A, when the steel biting signal from the first finishing mill is detected, the first, second, and fourth cooling water spray devices are turned on to cool A; and for B, when the steel biting signal from the third finishing mill is detected, the third, fifth, and sixth cooling water spray devices are turned on to cool B, which can save a certain amount of cooling water.

[0070] In some embodiments of the present application, the target cooling water spray device is controlled to spray to the upper surface and the lower surface of the steel strip at the same time, so as to perform a temperature reduction treatment on the upper surface and the lower surface of the steel strip at the same time.

[0071] In the present application, the target cooling water spray device can be controlled to spray the upper and lower surfaces of the steel strip at the same time. If only the upper surface is cooled, the upper surface temperature of the steel strip will be lower than the lower surface temperature, and the steel strip will warp upward, eventually causing a warping and steel jamming accident. Therefore, the present application sprays the upper and lower surfaces of the steel strip at the same time to avoid the above situation.

[0072] In order to enable those skilled in the art to have a deep understanding of the present application, a complete embodiment will be described below.

[0073] See also Figure 6 , Figure 6 A schematic diagram of a strip steel finishing equipment in an embodiment of the present application is shown. There is a set of finishing equipment, with a total of 7 finishing mills, numbered 601, 602, 603, 604, 605, 606, and 607. There are 6 spray devices, numbered 608, 609, 610, 611, 612, and 613. The strip steel is numbered 614, the inlet temperature sensor is numbered 615, and the outlet temperature sensor is 616.

[0074] The inlet temperature of 614 is detected by 615, and then by reading the cooling schedule table, the N value is obtained to be 2, and 609, 610, and 611 are selected as the target cooling water spraying devices. The finishing rolling is started. When the steel biting signal sent by 602 is detected, 609, 610, and 611 are controlled to cool 614. When the steel biting signal sent by 607 is detected, the finishing rolling speed is increased. 616 starts to detect the outlet temperature of 614. According to the outlet temperature, the finishing rolling equipment is controlled to adjust the finishing rolling speed and the spraying amount of 609, 610, and 611 in time to perform stable finishing rolling.

[0075] Next, a device embodiment of the present application will be introduced in conjunction with the drawings.

[0076] Figure 7 A simplified structural diagram of a strip steel finishing equipment control device in an embodiment of the present application is shown, wherein the strip steel finishing equipment comprises M finishing mills arranged in sequence, wherein a cooling water spraying device is provided between each two adjacent finishing mills, and M is an integer greater than or equal to 2. The device may comprise: an acquisition unit 701, a selection unit 702, a first control unit 703, and a second control unit 704.

[0077] The specific configuration of the device may be:

[0078] 701 acquisition unit, used to acquire initial strip parameters and target strip parameters, wherein the initial strip parameters are used to characterize the specifications of the strip before finish rolling, and the target strip parameters are used to characterize the target specifications of the strip after finish rolling.

[0079] The selection unit 702 is used to select part of the cooling water spray devices in the cooling water spray devices behind the Nth finishing mill as target cooling water spray devices according to the initial parameters of the strip and the target parameters of the strip, where N is a positive integer less than M.

[0080] 703 A first control unit is used to control the target cooling water spray device to perform a cooling treatment on the steel strip.

[0081] 704 The second control unit is used to close one or more cooling water spray devices in the target cooling water spray devices when a steel throwing signal is detected from the Mth finishing mill.

[0082] See also Figure 8 , Figure 8 A schematic diagram of the structure of a computer system suitable for implementing the control method of the strip steel finishing rolling equipment in the embodiment of the present application is shown.

[0083] It should be noted that Figure 8 The computer system 800 of the control method of the strip finishing rolling equipment shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0084] like Figure 8 As shown, the computer system 800 includes a central processing unit (CPU) 801, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 802 or the program loaded from the storage part 808 to the random access memory (RAM) 803, such as executing the method described in the above embodiment. In the RAM 803, various programs and data required for system operation are also stored. The CPU 801, the ROM 802 and the RAM 803 are connected to each other through the bus 804. The input / output (I / O) interface 805 is also connected to the bus 804.

[0085] The following components are connected to the I / O interface 805: an input section 806 including a keyboard, a mouse, etc.; an output section 807 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 808 including a hard disk, etc.; and a communication section 809 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 809 performs communication processing via a network such as the Internet. A drive 810 is also connected to the I / O interface 805 as needed. A removable medium 811, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 810 as needed so that a computer program read therefrom is installed into the storage section 808 as needed.

[0086] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication part 809, and / or installed from a removable medium 811. When the computer program is executed by a central processing unit (CPU) 801, various functions defined in the system of the present application are executed.

[0087] It should be noted that the computer-readable medium shown in the embodiment of the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program, which may be used by or in combination with an instruction execution system, device or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0088] The flowchart and block diagram in the accompanying drawings illustrate the possible architecture, functions and operations of the system, method and computer program product according to various embodiments of the present application. Wherein, each box in the flowchart or block diagram can represent a module, a program segment, or a part of the code, and the above-mentioned module, program segment, or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram or flowchart, and the combination of boxes in the block diagram or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0089] The units involved in the embodiments described in this application may be implemented by software or hardware, and the units described may also be set in a processor. The names of these units do not, in some cases, constitute limitations on the units themselves.

[0090] As another aspect, the present application further provides a computer program product or a computer program, the computer program product or the computer program including computer instructions, the computer instructions being stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the control method of the strip steel finishing rolling equipment described in the above embodiment.

[0091] As another aspect, the present application also provides a computer-readable medium, which may be included in the electronic device described in the above embodiment; or may exist independently without being assembled into the electronic device. The above computer-readable medium carries one or more programs, and when the above one or more programs are executed by an electronic device, the electronic device implements the control method of the strip steel finishing equipment described in the above embodiment.

[0092] It should be noted that, although several modules or units of the equipment for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present application, the features and functions of two or more modules or units described above can be embodied in one module or unit. On the contrary, the features and functions of one module or unit described above can be further divided into being embodied by multiple modules or units.

[0093] Through the description of the above implementation methods, it is easy for those skilled in the art to understand that the example implementation methods described here can be implemented by software, or by combining software with necessary hardware. Therefore, the technical solution according to the implementation method of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, including several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the implementation method of the present application.

[0094] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the embodiments disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application.

[0095] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A control method for strip finishing equipment, characterized in that: The strip finishing equipment comprises M finishing mills arranged in sequence, wherein a cooling water spraying device is provided between each two adjacent finishing mills, and M is an integer greater than or equal to 2. The method comprises: Acquire initial strip steel parameters and target strip steel parameters, wherein the initial strip steel parameters are used to characterize the specifications of the strip steel before finish rolling, and the target strip steel parameters are used to characterize the target specifications of the strip steel after finish rolling; According to the initial parameters of the steel strip and the target parameters of the steel strip, a portion of cooling water spray devices in the cooling water spray devices located after the Nth finishing mill are selected as target cooling water spray devices, where N is a positive integer less than M; Controlling the target cooling water spray device to perform a temperature reduction treatment on the steel strip; When a steel throwing signal from the Mth finishing mill is detected, one or more cooling water spray devices in the target cooling water spray devices are turned off; The initial strip parameters include but are not limited to the steel type of the strip, the initial temperature of the strip, the initial thickness of the strip, and the target width of the strip; the target strip parameters include but are not limited to the target temperature of the strip, the target thickness of the strip, and the target width of the strip; If a steel biting signal from the Mth finishing mill is detected, the finishing rolling equipment is controlled to increase the finishing rolling speed; the strip outlet temperature at the outlet of the Mth finishing mill is acquired in real time, and if it is detected that the strip outlet temperature reaches the target temperature of the strip, the finishing rolling equipment is controlled to stop increasing the finishing rolling speed; Among them, the method of selecting a part of the cooling water spray devices in the cooling water spray devices behind the Nth finishing mill as the target cooling water spray devices, where N is a positive integer less than M, includes: reading a cooling schedule table, determining the N value and the selection scheme of the target cooling water spray device, the cooling schedule table recording the parameter combinations of different initial strip steel parameters and target strip steel parameters, and the N value and the selection scheme of the target cooling water spray device corresponding to each parameter combination; if a steel biting signal from the Nth finishing mill is detected, controlling the target cooling water spray device to cool the strip steel; The target cooling water spray device is controlled to spray the upper surface and the lower surface of the steel strip at the same time, so as to perform a temperature reduction treatment on the upper surface and the lower surface of the steel strip at the same time.

2. The control method according to claim 1, characterized in that: The controlling the target cooling water spraying device to perform a temperature reduction treatment on the steel strip comprises: Real-time acquisition of the strip steel outlet temperature at the outlet of the Mth finishing mill; If the strip outlet temperature is higher than or equal to the target temperature of the strip, controlling the target cooling water spray device to increase the spraying amount; If the outlet temperature of the steel strip is lower than the target temperature of the steel strip, the target cooling water spraying device is controlled to reduce the spraying amount.

3. The control method according to claim 1, characterized in that: The method further comprises: Real-time acquisition of the strip steel outlet temperature at the outlet of the Mth finishing mill; If the strip outlet temperature is higher than or equal to the target temperature of the strip, controlling the finishing rolling equipment to reduce the finishing rolling speed; If the outlet temperature of the steel strip is lower than the target temperature of the steel strip, the finishing rolling equipment is controlled to increase the finishing rolling speed.

4. A strip finishing equipment control device, characterized in that: The strip finishing equipment comprises M finishing mills arranged in sequence, wherein a cooling water spraying device is provided between each two adjacent finishing mills, M is an integer greater than or equal to 2, and the device comprises: An acquisition unit is used to acquire initial strip steel parameters and target strip steel parameters, wherein the initial strip steel parameters are used to characterize the specifications of the strip steel before finish rolling, and the target strip steel parameters are used to characterize the target specifications of the strip steel after finish rolling; A selection unit is used to select part of the cooling water spray devices in the cooling water spray devices after the Nth finishing mill as target cooling water spray devices according to the initial parameters of the steel strip and the target parameters of the steel strip, where N is a positive integer less than M; A first control unit is used to control the target cooling water spray device to perform a temperature reduction treatment on the steel strip; The second control unit is used to close one or more cooling water spray devices in the target cooling water spray device when a steel throwing signal is detected from the Mth finishing mill; the initial strip parameters include but are not limited to the steel type of the strip, the initial temperature of the strip, the initial thickness of the strip, and the target width of the strip; the target strip parameters include but are not limited to the target temperature of the strip, the target thickness of the strip, and the target width of the strip; if a steel biting signal is detected from the Mth finishing mill, the finishing equipment is controlled to increase the finishing speed; the strip outlet temperature at the outlet of the Mth finishing mill is obtained in real time, and if it is detected that the strip outlet temperature reaches the target temperature of the strip, the finishing equipment is controlled to stop increasing the finishing speed; Among them, the method of selecting a part of the cooling water spray devices in the cooling water spray devices behind the Nth finishing mill as the target cooling water spray devices, where N is a positive integer less than M, includes: reading a cooling schedule table, determining the N value and the selection scheme of the target cooling water spray device, the cooling schedule table recording the parameter combinations of different initial strip steel parameters and target strip steel parameters, and the N value and the selection scheme of the target cooling water spray device corresponding to each parameter combination; if a steel biting signal from the Nth finishing mill is detected, controlling the target cooling water spray device to cool the strip steel; The target cooling water spray device is controlled to spray the upper surface and the lower surface of the steel strip at the same time, so as to perform a temperature reduction treatment on the upper surface and the lower surface of the steel strip at the same time.

5. A computer-readable storage medium, characterized in that: At least one program code is stored in the computer-readable storage medium, and the at least one program code is loaded and executed by the processor to implement the operations performed by the control method of the strip finishing rolling equipment according to any one of claims 1 to 3.

6. A computer device, characterized in that: The computer device includes one or more processors and one or more memories, wherein at least one program code is stored in the one or more memories, and the at least one program code is loaded and executed by the one or more processors to implement the operations performed by the control method of the strip steel finishing equipment as described in any one of claims 1 to 3.

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