Control method, system, medium and equipment for headless continuous casting and rolling strip steel production line

Abstract

The present invention proposes a control method, system, medium, and equipment for a headless continuous casting and rolling strip steel production line. The method comprises: arranging multiple virtual steel coils in the continuous casting, rough rolling, finishing rolling, and coiling areas; the multiple virtual steel coils enter a single coiler, and each virtual steel coil corresponds to a strip steel of a certain thickness specification; when strip steel of different thickness specifications passes through the coiling area, the strip steel of the thickness specification corresponding to each virtual steel coil tracks and enters the coiling area; the high-speed flying shear device in the coiling area does not shear the virtual head and tail of the virtual steel coil; the single coiler merges the strip steel corresponding to the multiple virtual steel coils into a physical steel coil of different thickness specifications. This method can reduce transition materials in the headless continuous casting and rolling strip steel production line, increase the proportion of thin-gauge strip steel, and enhance the economic benefits of the continuous casting and rolling production line.

Description

Technical Field

[0001] The present invention relates to the technical field of steel casting, and in particular to a control method, system, medium and equipment for a headless continuous casting and rolling strip steel production line. Background Art

[0002] Endless continuous casting and rolling technology connects the strip steel produced in the continuous casting, roughing, and finishing rolling areas. Strip steel of varying thicknesses is then cut by high-speed flying shears in the coiling area before entering separate coilers. Compared to traditional production lines, this strip steel production line eliminates the need for head threading and tail casting, resulting in a more stable rolling process.

[0003] However, the production process requires a large amount of transition material to roll thin-gauge strip, resulting in a certain amount of unintended product, significantly reducing the proportion of thin-gauge strip. Although small-tonnage coiling can be adopted, the equipment's operating rhythm and control accuracy limit the continuous production of only three small-tonnage coils. This still results in a large number of unintended products with low added value, affecting overall economic benefits and failing to fully realize the value of the endless continuous casting and rolling line. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention proposes a control method, system, medium and equipment for a headless continuous casting and rolling strip steel production line. The method can reduce the transition material of the headless continuous casting and rolling strip steel production line, increase the proportion of thin-gauge strip steel, give full play to the stable thin-gauge rolling characteristics of the production line, and increase the economic benefits of the continuous casting and rolling production line.

[0005] In order to achieve the above-mentioned object, the present invention provides, on one hand, a control method for a headless continuous casting and rolling strip steel production line, comprising:

[0006] Arrange multiple virtual steel coils in the continuous casting, rough rolling, finishing rolling and coiling areas, and track the multiple virtual steel coils into a single coiler, each of the virtual steel coils corresponding to a strip steel of a certain thickness specification;

[0007] When strip steels of different thickness specifications pass through the coiling area, the strip steel of the thickness specification corresponding to each virtual steel coil tracks and enters the coiling area. The high-speed flying shear device in the coiling area does not shear the virtual head and tail of the virtual steel coil. A single coiler merges the strip steels corresponding to multiple virtual steel coils into a physical steel coil of different thickness specifications.

[0008] Optionally, before arranging multiple virtual steel coil tracking in the continuous casting, rough rolling, finishing rolling and coiling areas, the method further includes:

[0009] Acquire the production information of the merged steel coils, which includes the number of virtual steel coils required before the merger and the thickness and length information of each virtual steel coil, as well as the number of the physical steel coils after the merger and the thickness and length information of all virtual steel coils corresponding to the physical steel coils.

[0010] Optionally, the method further includes:

[0011] The combined steel coil production information is received, and after the steel is rolled, a combined steel coil production mode is triggered to perform automatic chain control of the equipment.

[0012] Optionally, the method further includes:

[0013] After the number of physical steel coils in the physical coiler reaches the preset number of physical steel coils after merging, the merged steel coil production mode is canceled before the tail of the currently merged physical steel coil tracks and reaches the finishing mill, and the automatic chain control of the equipment is canceled.

[0014] Optionally, the method further includes:

[0015] After receiving the cancellation information of the combined steel coil production mode,

[0016] When the tail of the currently merged physical steel coil reaches the high-speed flying shear device, it is sheared normally and switched to the standby coiler for coiling.

[0017] Another aspect of the present invention provides a control system for a headless continuous casting and rolling strip steel production line, adopting the above-mentioned headless continuous casting and rolling strip steel production line control method, the system at least comprising:

[0018] Multiple virtual steel coils arranged in the continuous casting, roughing, finishing and coiling areas;

[0019] Single coiler,

[0020] Multiple virtual steel coils are tracked and enter a corresponding single coiler, and each virtual steel coil corresponds to a strip steel of a certain thickness specification;

[0021] Control unit for controlling:

[0022] When strip steels of different thickness specifications pass through the coiling area, when the strip steel of the thickness specification corresponding to each virtual steel coil enters the coiling area, the high-speed flying shear device of the coiling area does not shear the virtual head and tail of the steel coil;

[0023] The strip steels of different thickness specifications passing through the virtual steel coil enter the single coiler and are merged into a physical steel coil of different thickness specifications.

[0024] The control unit is further configured to:

[0025] Acquire the production information of the merged steel coils, wherein the production information of the merged steel coils includes the number of virtual steel coils required before the merger and the thickness and length information of each virtual steel coil, and the number of the physical merged steel coils after the merger and the thickness and length information of all virtual steel coils corresponding to the physical merged steel coils;

[0026] The virtual steel coils and the physical merged steel coils are configured according to the number of the virtual steel coils, the thickness and length information of each of the virtual steel coils, and the number of the physical merged steel coils and the thickness and length information of the physical merged steel coils.

[0027] The control unit is further configured to:

[0028] Receive the merged steel coil production information, perform normal cutting before merging the physical steel coil, and trigger the merged steel coil production mode after merging the virtual head coil of the virtual steel coil to perform automatic chain control of the equipment.

[0029] Another aspect of the present invention provides a storage medium for storing a computer program for executing the above-mentioned method for controlling the headless continuous casting and rolling strip steel production line.

[0030] On the other hand, the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned headless continuous casting and rolling strip production line control method when executing the computer program.

[0031] From the above scheme, it can be seen that the advantages of the present invention are:

[0032] The present invention provides a control method for a headless continuous casting and rolling strip steel production line. In the headless continuous casting and rolling strip steel production line, multiple virtual steel coil machines are used to track the production mode corresponding to a single coiler. On the basis of ensuring the normal transition of the FGC thickness specification during roughing and finishing rolling, the multiple virtual steel coils are not sheared, and ultimately only one physical steel coil of a combined thickness specification is produced. That is, multiple virtual steel coils are arranged in the continuous casting, roughing, finishing, and coiling areas. The multiple virtual steel coils enter a single coiler, and each virtual steel coil corresponds to a strip steel of a different thickness specification. When the strip steels of different thickness specifications pass through the coiling area, the strip steel of the thickness specification corresponding to each virtual steel coil is tracked and enters the coiling area. The high-speed flying shear device of the coiling area does not shear the virtual head and tail of the virtual steel coil. The single coiler merges the strip steels corresponding to the multiple virtual steel coils into a physical steel coil of different thickness specifications. Through the control method of the headless continuous casting and rolling strip production line, the tonnage of transition materials can be reduced. Strips of different thickness specifications are not cut at the high-speed flying shear device, and enter the same coiler for coiling. This can meet the rapid transition of thickness specifications and ensure stable production operation. At the same time, the wear of equipment such as the shear blade and pinch roller of the high-speed flying shear device during operation is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic flow chart of a method for controlling a headless continuous casting and rolling strip steel production line according to an embodiment of the present invention;

[0034] Figure 2 This is a framework diagram of the control system of the headless continuous casting and rolling strip steel production line of the present invention;

[0035] Figure 3 A schematic diagram of the structure of an electronic device. DETAILED DESCRIPTION

[0036] In order to make the above features and effects of the present invention more clearly understood, embodiments are given below and described in detail with reference to the accompanying drawings.

[0037] Specifically, refer to Figure 1 As shown in Figure 1 A flow chart of a control method for a headless continuous casting and rolling strip steel production line is shown;

[0038] A control method for a headless continuous casting and rolling strip steel production line, comprising:

[0039] S1. Arrange multiple virtual steel coils in the continuous casting, rough rolling, finishing rolling and coiling areas. The multiple virtual steel coils enter a single coiler. Each virtual steel coil corresponds to a strip steel of a certain thickness specification.

[0040] In the specific implementation, multiple virtual steel coils are arranged in the continuous casting, rough rolling, finishing rolling and coiling areas. The virtual steel coils are tracked corresponding to the physical steel coils on the production line. Each of the virtual steel coils corresponds to a strip steel of a certain thickness specification and can indicate the position, length and other information of the physical steel coil.

[0041] In addition, before arranging multiple virtual steel coils in the continuous casting, rough rolling, finishing rolling and coiling areas, the merged steel coil production information is obtained, and the merged steel coil production information includes the number of virtual steel coils required before merging and the thickness and length information of each of the virtual steel coils, as well as the number of the physical steel coils after merging and the thickness and length information of all virtual steel coils corresponding to the physical steel coils.

[0042] S2. When strip steels of different thickness specifications pass through the coiling area, the strip steels of the thickness specifications corresponding to each virtual steel coil are tracked and enter the coiling area.

[0043] The high-speed flying shear device in the coiling area does not shear the virtual head and tail of the virtual steel coil, and a single coiler combines the strip steels corresponding to multiple virtual steel coils into a physical steel coil with different thickness specifications.

[0044] In addition, in this embodiment, the control system of the headless continuous casting and rolling strip production line receives the production information of the merged steel coils, performs normal slitting before merging the physical steel coils, and triggers the merged steel coil production mode after merging the virtual head coil of the virtual steel coil, and performs automatic chain control of the equipment. The head and tail of the strip tracked by the virtual steel coil are not sheared when passing through the high-speed flying shear device, and the coil change action is not performed when passing through the front clamping rollers, lower clamping transverse movement, side guides, auxiliary coil rollers, reels, and unloading trolleys of the coiler. The coil diameter in the coiler continues to be calculated, the standby coiler does not activate the ready-to-feed signal, and the coiler is not switched. Then, after monitoring that the number of the physical steel coils merged in the coiler has reached the preset number of physical steel coils, the merged steel coil production mode is canceled when the tail of the currently merged physical steel coil tracks and reaches the preset position before the finishing mill, and the automatic chain control of the equipment is canceled. Then, after receiving the cancellation information of the merged steel coil production mode, the system will cut the tail of the currently merged physical steel coil normally when it reaches the high-speed flying shear device, and switch to the standby coiler for coiling.

[0045] Therefore, the control method of the headless continuous casting and rolling strip steel production line provided by the present invention adopts multiple virtual steel coil machines to track the production mode corresponding to a single coiler in the headless continuous casting and rolling strip steel production line. On the basis of ensuring the normal transition of FGC thickness specifications during roughing and finishing rolling, multiple virtual steel coils are not cut, and only one physical steel coil with a combined thickness specification is finally produced. For example, in the headless continuous casting and rolling production line, the first roll of 3.5mm thickness enters the strip steel, and then from 3.5mm→(3.0mm→2.8mm→2.5mm→2.3mm→2.0mm→1.8mm→1.5mm→1.4mm→1.3mm) (transition material)→1.2mm→1.1mm→1.05mm→1.0mm→0.95mm→0.9mm→0.8mm, each thickness specification of the strip steel is sheared in the high-speed flying shear device at the entrance of the coiling area, and each virtual steel coil tracks a corresponding thickness specification and enters a single coiler after shearing. Steel coils with a specification of 1.2mm or larger are not economically efficient, but this arrangement is necessary to ensure stable production. Furthermore, due to the limited number of coilers, the weight of each transition specification cannot be too small, generally 20 tons, otherwise the coiling area will not be able to unload and transport the coils normally. This application mainly changes the thickness specifications in the continuous casting, rough rolling, and finishing rolling areas to the same level as before, but reduces the tonnage of each transition material to a quarter or a third of the original. No shearing is done in the high-speed flying shear area, and three or four virtual steel coils enter the same coiler, ensuring both rolling stability and reducing the weight of the transition material.

[0046] In summary, this embodiment arranges multiple virtual steel coils in the continuous casting, rough rolling, finishing rolling and coiling areas, and the multiple virtual steel coils enter a single coiler, and each virtual steel coil corresponds to a strip steel of a thickness specification; when the strip steels of different thickness specifications pass through the coiling area, the strip steel of the thickness specification corresponding to each virtual steel coil tracks and enters the coiling area, and the high-speed flying shear device in the coiling area does not shear the virtual head and tail of the virtual steel coil, and the single coiler merges the strip steels corresponding to the multiple virtual steel coils into a physical steel coil of different thickness specifications. Through this headless continuous casting and rolling strip production line control method, the tonnage of transition materials can be reduced, and the strip steels of different thickness specifications are not cut at the high-speed flying shear device, and enter the same coiler for coiling, which satisfies the rapid transition of thickness specifications and ensures stable production operation, while reducing the wear of the shear blades and pinch rollers of the high-speed flying shear device during operation.

[0047] Reference Figure 2 , Figure 2 A control system 400 for a headless continuous casting and rolling strip steel production line is shown. The control method for a headless continuous casting and rolling strip steel production line can be applied to a personal terminal and a host terminal device, which can be realized by Figure 1The headless continuous casting and rolling strip steel production line control method shown in the figure, the headless continuous casting and rolling strip steel production line control system provided in the embodiment of the present application can realize each process realized by the above-mentioned headless continuous casting and rolling strip steel production line control method.

[0048] A control system 400 for a headless continuous casting and rolling steel strip production line adopts the above-mentioned control method for a headless continuous casting and rolling steel strip production line, and the system at least comprises:

[0049] Multiple virtual steel coils arranged in the continuous casting, roughing, finishing and coiling areas;

[0050] High-speed flying shear device 401,

[0051] Single coiler 402,

[0052] Multiple virtual steel coils are tracked and enter a corresponding single coiler 401, and each virtual steel coil corresponds to a strip steel of a certain thickness specification;

[0053] The control unit 403 is used to control:

[0054] When strip steels of different thickness specifications pass through the coiling area, when the strip steel of the thickness specification corresponding to each virtual steel coil enters the coiling area, the high-speed flying shear device 401 in the coiling area does not shear the virtual head and tail of the steel coil;

[0055] The strip steels of different thickness specifications that have passed through the virtual steel coil enter the single coiler 402 and are merged into a physical steel coil of different thickness specifications.

[0056] The control unit 403 is further configured to:

[0057] Acquire the production information of the merged steel coils, wherein the production information of the merged steel coils includes the number of virtual steel coils required before the merger and the thickness and length information of each virtual steel coil, and the number of the physical merged steel coils after the merger and the thickness and length information of all virtual steel coils corresponding to the physical merged steel coils;

[0058] The virtual steel coils and the physical merged steel coils are configured according to the number of the virtual steel coils, the thickness and length information of each of the virtual steel coils, and the number of the physical merged steel coils and the thickness and length information of the physical merged steel coils.

[0059] The control unit 403 is further configured to:

[0060] Receive the merged steel coil production information, perform normal cutting before merging the physical steel coil, and trigger the merged steel coil production mode after merging the virtual head coil of the virtual steel coil to perform automatic chain control of the equipment.

[0061] This embodiment of the headless continuous casting and rolling strip production line control system utilizes multiple virtual coilers to track the production mode of a single coiler. While ensuring the normal transition between FGC thickness specifications during roughing and finishing, the multiple virtual coilers do not cut each other, ultimately producing a single physical coil of the combined thickness specifications. This system reduces the tonnage of transition material. Strips of varying thickness specifications are not cut at the high-speed flying shear and instead enter the same coiler for coiling. This ensures rapid transition between thickness specifications while ensuring stable production operations. It also reduces wear on the high-speed flying shear's shear blades and pinch rollers.

[0062] In addition, it should be understood that in the headless continuous casting and rolling strip production line control system 400 according to the embodiment of the present application, the division of the above-mentioned functional modules is only used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the headless continuous casting and rolling strip production line control system 400 can be divided into functional modules different from the modules illustrated above to complete all or part of the functions described above.

[0063] Figure 3 It is a structural diagram of an electronic device provided in an embodiment of the present application.

[0064] like Figure 3 As shown in , an embodiment of the present application also provides an electronic device 500, including a processor 501, a memory 502, and a program or instruction stored in the memory 502 and executable on the processor 501. When the program or instruction is executed by the processor 501, the steps of the above-mentioned headless continuous casting and rolling strip production line control method are implemented, and the same technical effect can be achieved.

[0065] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the above-mentioned headless continuous casting and rolling strip production line control method are implemented, and the same technical effect can be achieved.

[0066] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or system comprising the element. In addition, it should be noted that the scope of the methods and systems in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be applied, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0067] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), including a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0068] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A control method for a headless continuous casting and rolling strip steel production line, characterized in that: include: Arrange multiple virtual steel coils in the continuous casting, rough rolling, finishing rolling and coiling areas, and track the multiple virtual steel coils into a single coiler, each of the virtual steel coils corresponding to a strip steel of a certain thickness specification; When strip steels of different thickness specifications pass through the coiling area, each virtual steel coil corresponding to the thickness specification of the strip steel tracks and enters the coiling area. The high-speed flying shear device in the coiling area does not shear the virtual head and tail of the virtual steel coil, and a single coiler combines the strip steels corresponding to multiple virtual steel coils into a physical steel coil with different thickness specifications.

2. The method according to claim 1, characterized in that Before arranging multiple virtual steel coil tracking in the continuous casting, rough rolling, finishing rolling and coiling areas, the method further includes: Acquire the production information of the merged steel coils, which includes the number of virtual steel coils required before the merger and the thickness and length information of each virtual steel coil, as well as the number of the physical steel coils after the merger and the thickness and length information of all virtual steel coils corresponding to the physical steel coils.

3. The method according to claim 2, characterized in that Also includes: Receive the merged steel coil production information, perform normal cutting before merging the physical steel coil, and trigger the merged steel coil production mode after merging the virtual head coil of the virtual steel coil to perform automatic chain control of the equipment.

4. The method according to claim 3, characterized in that Also includes: After the number of the physical steel coils merged in the coiler reaches the preset number of physical steel coils, When the tail of the currently merged physical steel coil tracks and reaches a preset position before the finishing mill, the merged steel coil production mode is canceled and the automatic chain control of the equipment is canceled.

5. The method according to claim 4, characterized in that Also includes: After receiving the cancellation information of the combined steel coil production mode, When the tail of the currently merged physical steel coil reaches the high-speed flying shear device, it is sheared normally and switched to the standby coiler for coiling.

6. A control system for a headless continuous casting and rolling strip steel production line, characterized in that: The control method for a headless continuous casting and rolling strip steel production line according to any one of claims 1 to 5 is adopted, wherein the system at least comprises: Multiple virtual steel coils arranged in the continuous casting, roughing, finishing and coiling areas; Single coiler, Multiple virtual steel coils are tracked and enter a single coiler, each of the virtual steel coils corresponding to a strip steel of a certain thickness specification; Control unit for controlling: When strip steels of different thickness specifications pass through the coiling area, when the strip steel of the thickness specification corresponding to each virtual steel coil enters the coiling area, the high-speed flying shear device of the coiling area does not shear the virtual head and tail of the steel coil; The strip steels of different thickness specifications passing through the virtual steel coil enter the single coiler and are merged into a physical steel coil of different thickness specifications.

7. The system according to claim 6, characterized in that The control unit is further configured to: Acquire the merged steel coil production information, wherein the merged steel coil production information includes the number of virtual steel coils required before merging and the thickness and length information of each virtual steel coil, and the number of physical steel coils after merging and the thickness and length information of all virtual steel coils corresponding to the physical steel coils; The virtual steel coils and the physical steel coils are configured according to the number of the virtual steel coils, the thickness and length information of each of the virtual steel coils, and the number of the merged physical steel coils and the thickness and length information of the physical steel coils.

8. The system according to claim 7, characterized in that The control unit is further configured to: Receive the merged steel coil production information, perform normal cutting before merging the physical steel coil, and trigger the merged steel coil production mode after merging the virtual head coil of the virtual steel coil to perform automatic chain control of the equipment.

9. A storage medium, characterized in that: Used to store a computer program for executing the control method of the headless continuous casting and rolling strip steel production line according to any one of claims 1-5.

10. An electronic device, characterized in that: including a memory, a processor, and a The computer program running on the processor implements the headless continuous casting and rolling strip steel production line control method according to any one of claims 1 to 5 when the processor executes the computer program.

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