Method, device and equipment for controlling a slab line

Abstract

The application discloses a slab production line control method, device and equipment, the slab production line includes a heating furnace, a descaling machine located downstream of the heating furnace, a position detection element located between the heating furnace and the descaling machine; the method comprises the following steps: after the slab is discharged from the heating furnace, the header mode of the descaling machine is acquired, and position information of position detection of the slab by the position detection element is acquired; if the header mode is a single header mode, and the position information indicates that the head of the slab is close to the jet coverage area of the inlet header of the descaling machine, the inlet header is opened; if the header mode is a single header mode, and the position information indicates that the tail of the slab is away from the jet coverage area of the inlet header, the inlet header is closed. The application solves the technical problem of large energy consumption in the descaling process.

Description

Technical Field

[0001] This invention belongs to the field of slab production technology, and particularly relates to a control method, device and equipment for a slab production line. Background Technology

[0002] Descaling is a crucial process on slab production lines. The descaling machine's function is to use high-pressure water generated by a descaling pump unit, through nozzles, to create a high-speed jet that impacts the slab surface, causing the iron oxide scale to detach and ensuring the surface quality of the rolled slab. However, current processes employ a crude descaling strategy, with the descaling machine's manifold operating for extended periods, resulting in excessive water waste. Therefore, the high energy consumption of the descaling process is a pressing technical problem that needs to be addressed. Summary of the Invention

[0003] This invention provides a control method, apparatus, and equipment for a slab production line, which solves the technical problem of high energy consumption in the descaling process.

[0004] In a first aspect, embodiments of the present invention provide a control method for a slab production line, the slab production line including a heating furnace, a descaling machine located downstream of the heating furnace, and a position detection element located between the heating furnace and the descaling machine; the method includes: after the slab exits the heating furnace, acquiring the manifold mode of the descaling machine, and acquiring position information of the position detection element for position detection of the slab; if the manifold mode is a single manifold mode, and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold of the descaling machine, opening the inlet manifold; if the manifold mode is a single manifold mode, and the position information indicates that the tail of the slab leaves the spray coverage area of ​​the inlet manifold, closing the inlet manifold.

[0005] In conjunction with the first aspect of the invention, in some embodiments, the method further includes: if the manifold mode is a dual-manifold mode, and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold, opening the inlet manifold; if the manifold mode is a dual-manifold mode, and the position information indicates that the tail of the slab is away from the spray coverage area of ​​the inlet manifold, closing the inlet manifold; if the manifold mode is a dual-manifold mode, and the position information indicates that the head of the slab is close to the spray coverage area of ​​the outlet manifold of the descaling machine, opening the outlet manifold; if the manifold mode is a dual-manifold mode, and the position information indicates that the tail of the slab is away from the spray coverage area of ​​the outlet manifold, closing the outlet manifold.

[0006] In conjunction with the first aspect of the present invention, in some embodiments, obtaining the manifold mode of the descaling machine includes: obtaining the material type of the slab; if the material type is a preset material type, using the dual manifold mode as the manifold mode of the descaling machine; otherwise, using the single manifold mode as the manifold mode of the descaling machine.

[0007] In conjunction with the first aspect of the present invention, in some embodiments, the slab is a medium-thick plate; the preset material type is wear-resistant steel, weather-resistant steel, high-strength steel, bridge steel, and steel plate with a thickness of 6mm to 7mm.

[0008] In conjunction with the first aspect of the present invention, in some embodiments, the invention further includes: adjusting the start-stop pressure range of the descaling pump group of the descaling machine to a preset pressure range; the preset pressure range is 19 MPa to 22 MPa.

[0009] In conjunction with the first aspect of the present invention, in some embodiments, the method further includes: obtaining the current pressure of the descaling pump group; if the current pressure is less than the lower limit of the preset pressure range and the duration is greater than the preset duration threshold, outputting a prompt message to indicate that the pressure is too low.

[0010] In conjunction with the first aspect of the present invention, in some embodiments, the method further includes: obtaining the thickness of the slab; determining the height of the target manifold during the jetting water flow based on the thickness of the slab; wherein the target manifold is an inlet manifold or an outlet manifold; the greater the thickness of the slab, the greater the height of the target manifold.

[0011] In conjunction with the first aspect of the present invention, in some embodiments, determining the height of the target manifold during water jetting based on the thickness of the slab includes: summing the thickness of the slab with a preset value as the height of the target manifold during water jetting.

[0012] Secondly, embodiments of the present invention provide a control device for a slab production line, the slab production line including a heating furnace, a descaling machine located downstream of the heating furnace, and a position detection element located between the heating furnace and the descaling machine; the device includes: an information acquisition unit, used to acquire the manifold mode of the descaling machine and the position information of the position detection element for position detection of the slab after the slab exits the heating furnace; a first manifold control unit, used to open the inlet manifold if the manifold mode is a single manifold mode and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold of the descaling machine; and a second manifold control unit, used to close the inlet manifold if the manifold mode is a single manifold mode and the position information indicates that the tail of the slab leaves the spray coverage area of ​​the inlet manifold.

[0013] Thirdly, embodiments of the present invention provide an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in any of the first aspects.

[0014] The one or more technical solutions provided in the embodiments of the present invention achieve at least the following technical effects or advantages: This invention, in its embodiments, obtains the manifold mode of the descaling machine and the position information of the slab detected by a position detection element after the slab exits the heating furnace. If the manifold mode is a single-manifold mode, and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold of the descaling machine, the inlet manifold is opened; if the manifold mode is a single-manifold mode, and the position information indicates that the tail of the slab is away from the spray coverage area of ​​the inlet manifold, the inlet manifold is closed. By determining the position of the slab using position information, the opening and closing timing of the manifold can be accurately controlled, avoiding prolonged ineffective water spraying from the manifold. Therefore, the energy consumption of the descaling process is reduced. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, 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 based on these drawings without creative effort.

[0016] Figure 1 This is a flowchart of the control method for the slab production line in an embodiment of the present invention; Figure 2 This is a functional block diagram of the control device for the slab production line in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of an electronic device in an embodiment of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0018] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0019] This invention provides a control method for a slab production line, the slab production line including a heating furnace, a descaling machine located downstream of the heating furnace, and a position detection element located between the heating furnace and the descaling machine; (Reference) Figure 1 As shown, the method includes the following steps S101 to S103: S101: After the slab exits the heating furnace, obtain the manifold mode of the descaling machine and the position information of the position detection element for position detection of the slab.

[0020] It should be noted that the descaling machine includes an inlet manifold located on the inlet side and an outlet manifold located on the outlet side. The manifold modes of the descaling machine include a single manifold mode and a double manifold mode. In the single manifold mode, only the inlet manifold is used to descale the slab; in the double manifold mode, both the inlet manifold and the outlet manifold are used to descale the slab.

[0021] Specifically, the position detection element can be placed on the inlet side of the descaling machine, that is, next to the roller conveyor before the descaling machine inlet. The point where the position detection element is placed is also called the image reference point. The position detection element can be a hot metal detector or an industrial vision device. The descaling machine can be a primary descaling machine, which is a dedicated piece of equipment for the first descaling process. It is installed on the roller conveyor between the outlet of the heating furnace and the inlet of the roughing mill, and is specifically used to remove the furnace-grown iron oxide scale formed when the slab is heated at high temperature in the heating furnace.

[0022] In some implementations, obtaining the manifold mode of the descaling machine includes: obtaining the material type of the slab; if the material type is a preset material type, using the dual-manifold mode as the manifold mode of the descaling machine; otherwise, using the single-manifold mode as the manifold mode of the descaling machine.

[0023] In some embodiments, the slab is a medium-thick plate; the preset material type is wear-resistant steel, weather-resistant steel, high-strength steel, bridge steel, and steel plate with a thickness of 6mm to 7mm.

[0024] It should be noted that if all processes are assumed to use the dual-manifold mode, there will be a significant amount of energy wasted on excessive descaling. This embodiment of the invention switches the majority of common material types, which account for the majority of production line capacity, to single-manifold operation, directly reducing the high-pressure water spray volume under normal operating conditions by approximately 50%. Simultaneously, the reduced spray volume slows the pressure drop rate in the high-pressure pipeline network, reducing the load-bearing operating time and start-stop frequency of the high-pressure pump set, resulting in a significant reduction in water and electricity consumption—one of the core energy-saving sources of the entire solution. This design avoids the ineffective splashing of high-pressure water in the roller conveyor and air, ensuring that energy is only invested in the necessary descaling process, resulting in energy savings far exceeding those of simple timing optimization. Furthermore, the rule does not indiscriminately reduce descaling capacity; rather, it retains the powerful dual-manifold descaling mode for wear-resistant steel, weathering steel, high-strength steel, bridge steel, and steel plates with a thickness of 6mm to 7mm. These types of materials either have strong iron oxide scale adhesion and are difficult to remove, or have stringent surface quality standards. Two layers of overlapping spraying can completely remove furnace-grown iron oxide scale, avoiding permanent quality defects such as scale indentation and surface pitting. Therefore, it achieves the beneficial effect of balancing energy saving and process reliability.

[0025] S102: If the manifold mode is single manifold mode and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold of the descaling machine, open the inlet manifold.

[0026] S103: If the manifold mode is single manifold mode and the position information indicates that the tail of the slab leaves the spray coverage area of ​​the inlet manifold, close the inlet manifold.

[0027] It should be noted that in single-manifold mode, the inlet manifold is only opened when the head of the slab approaches the spray coverage area of ​​the descaling machine's inlet manifold. This prevents energy waste caused by prolonged water spraying before the slab enters the spray coverage area. The inlet manifold is immediately closed when the tail of the slab leaves the spray coverage area to prevent energy waste caused by continuous ineffective water spraying after the slab has left the spray coverage area. Therefore, this achieves the beneficial effect of energy saving.

[0028] In some embodiments, the control method for the slab production line further includes: if the manifold mode is a dual manifold mode and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold, opening the inlet manifold; if the manifold mode is a dual manifold mode and the position information indicates that the tail of the slab is away from the spray coverage area of ​​the inlet manifold, closing the inlet manifold; if the manifold mode is a dual manifold mode and the position information indicates that the head of the slab is close to the spray coverage area of ​​the outlet manifold of the descaling machine, opening the outlet manifold; if the manifold mode is a dual manifold mode and the position information indicates that the tail of the slab is away from the spray coverage area of ​​the outlet manifold, closing the outlet manifold.

[0029] In some embodiments, the control method for the slab production line further includes: adjusting the start-stop pressure range of the descaling pump group of the descaling machine to a preset pressure range; the preset pressure range is 19 MPa to 22 MPa.

[0030] It should be noted that the descaling pump set generally consists of multiple high-pressure plunger pumps connected in parallel, installed in a separate high-pressure pump station building. High-pressure water is supplied to the inlet and outlet manifolds of the descaling machine via high-pressure pipelines, providing the energy for the nozzles to form a high-speed jet and remove iron oxide scale. The preset pressure range is 19 MPa to 22 MPa, with a starting pressure of 19 MPa and a stopping pressure of 22 MPa. By limiting the preset pressure range to 19 MPa to 22 MPa, the pressure fluctuation range is reduced, decreasing the pump's start-up frequency and single-cycle running time.

[0031] In some implementations, the control method for the slab production line further includes: acquiring the current pressure of the descaling pump group; if the current pressure is less than the lower limit of a preset pressure range and the duration is greater than a preset duration threshold, outputting a prompt message indicating that the pressure is too low.

[0032] It should be noted that if the current pressure is less than the lower limit of the preset pressure range and the duration is longer than the preset duration threshold, the operation interface can be controlled to flash red to remind timely measures to check the pressure of high-pressure water descaling, thus ensuring production safety while saving energy.

[0033] In some embodiments, the control method for the slab production line further includes: obtaining the thickness of the slab; determining the height of the target manifold during the water jet based on the thickness of the slab; wherein the target manifold is an inlet manifold or an outlet manifold; the greater the thickness of the slab, the greater the height of the target manifold.

[0034] In some implementations, determining the height of the target manifold during water jetting based on the thickness of the slab includes: summing the thickness of the slab with a preset value as the height of the target manifold during water jetting.

[0035] It should be noted that the preset values ​​include 110mm to 120mm.

[0036] It should be noted that for thin slabs, the header automatically lowers to avoid insufficient jet impact and incomplete removal of iron oxide scale due to excessive spacing; for thick slabs, the header automatically raises to avoid uneven jet coverage and blind spots in descaling at the slab edges due to insufficient spacing. This ensures that the nozzle and the upper surface of the slab are always at the optimal spray distance, fundamentally solving the problem of poor adaptability of fixed-height headers to different thicknesses, and ensuring that slabs of all thicknesses can achieve uniform and compliant descaling results. This achieves the beneficial effect of ensuring stable and consistent descaling quality across all slab sizes.

[0037] Secondly, in the traditional fixed-height mode, thin slabs suffer from reduced descaling efficiency due to excessively large spray spacing. This typically requires extending the spraying time and increasing system pressure to compensate for insufficient impact force, resulting in additional waste of high-pressure water and electricity. With adaptive height adjustment, the jet energy can directly and efficiently act on the slab surface, significantly improving descaling efficiency. There's no need to extend the spraying time or increase pressure to ensure quality, directly reducing water and electricity consumption per slab. Furthermore, it can synergize with energy-saving measures such as timing optimization and single / dual manifold modes to improve energy utilization and reduce ineffective energy consumption.

[0038] Finally, thick slabs are prone to head warping and arching after exiting the furnace. Fixed-height manifolds pose a risk of scraping and impacting the slab, potentially causing nozzle deformation, manifold seal damage, or even unplanned downtime. Raising the manifold synchronously with the slab thickness allows for sufficient safety clearance, effectively preventing mechanical interference between the slab and manifold, reducing damage to vulnerable components such as nozzles, manifolds, and seals, and lowering spare parts replacement costs and downtime. Therefore, this achieves the beneficial effects of mitigating equipment interference risks and extending component lifespan.

[0039] It should be noted that the location information can be the distance between the image reference point and the slab. In this case, the opening and closing of the inlet and outlet manifolds can be controlled based on this distance. For example, the opening position of the outlet manifold of the primary descaling machine can be adjusted to 5.3m from the image reference point at the head of the slab, with a delayed opening time to ensure water spraying only after the slab has reached its destination. The closing positions of the inlet and outlet manifolds are set to 7.5m and 8.0m from the image reference point at the tail of the slab, respectively, achieving phased closure and ensuring water spraying stops immediately after the tail of the slab leaves. By optimizing the manifold opening and closing sequence, ineffective water spraying time is eliminated.

[0040] It should be noted that during the process of determining the manifold mode, when a new slab enters the rolling line, the primary basic automation system obtains the slab's production data information, including steel grade, specifications (thickness, width), and order surface quality requirements, from the secondary process control computer via a communication interface. For example, weathering steel includes Q355NH, and high-strength steel includes Q500q. Additionally, a dual-manifold mode can be used for customer orders with special surface requirements. Furthermore, the operation interface provides "Dual Manifold Activation / Single Manifold Activation" buttons, allowing operators to manually override or intervene as needed.

[0041] It should be noted that in the process of adaptive adjustment and control of the manifold height, the automatic adjustment function of the manifold height can be constructed by integrating an automated control system and a hydraulic execution system. Wire encoders can be installed on both sides of the descaling machine to monitor the lifting position in real time. The control system adds analog and digital modules to process the encoder signals and output proportional valve commands. The hydraulic system precisely drives the manifold height through proportional valve control, achieving precise adjustment. The mill control program obtains the thickness through secondary communication, automatically calculates and sets the optimal manifold height, and achieves precise descaling of slabs of different specifications.

[0042] It should be noted that the embodiments of the present invention achieve coordinated operation of optimized manifold action timing, adaptive manifold height adjustment, refined pump pressure control, and intelligent selection of descaling mode. While ensuring descaling quality, this significantly reduces energy consumption and improves the operating efficiency and economy of the primary descaling machine. In practical applications, by implementing the above-mentioned optimized control methods and systems, the number of times the descaling pump unit is operated under load for pressurization can be significantly reduced, as can the load-bearing time of the descaling pump unit, further saving power consumption. Field verification after adjustment shows that it does not affect the primary descaling effect at all. It effectively reduces equipment idling, improves equipment utilization efficiency, and achieves low-cost production of products under the strong advocacy of energy conservation. Reducing the number of pump starts and stops can reduce equipment wear, thereby extending equipment lifespan and the frequency of periodic replacement and maintenance. The embodiments of the present invention, by adjusting the manifold switch position, reduce the time of cross-opening and premature opening of the manifold, effectively reducing energy waste. By adjusting the pressure range of the descaling pump unit, the descaling process is further optimized, reducing the number of times the descaling pump unit is started and stopped, reducing wear on the manifold nozzles, and extending service life. By introducing a two-level control system and adding a button activation function, the manifold can be selectively opened based on different steel grades and specifications, improving descaling efficiency while reducing unnecessary energy consumption. An early warning function has also been added to the user interface, enhancing system reliability.

[0043] This invention, in its embodiments, obtains the manifold mode of the descaling machine and the position information of the slab detected by a position detection element after the slab exits the heating furnace. If the manifold mode is a single-manifold mode, and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold of the descaling machine, the inlet manifold is opened; if the manifold mode is a single-manifold mode, and the position information indicates that the tail of the slab is away from the spray coverage area of ​​the inlet manifold, the inlet manifold is closed. By determining the position of the slab using position information, the opening and closing timing of the manifold can be accurately controlled, avoiding prolonged ineffective water spraying from the manifold. Therefore, the energy consumption of the descaling process is reduced.

[0044] Based on the same inventive concept, and referring to Figure 2 As shown, this embodiment of the invention provides a control device 10 for a slab production line. The slab production line includes a heating furnace, a descaling machine located downstream of the heating furnace, and a position detection element located between the heating furnace and the descaling machine. The control device 10 for the slab production line includes: an information acquisition unit 110, used to acquire the manifold mode of the descaling machine and the position information of the position detection element for position detection of the slab after the slab exits the heating furnace; a first manifold control unit 120, used to open the inlet manifold if the manifold mode is a single manifold mode and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold of the descaling machine; and a second manifold control unit 130, used to close the inlet manifold if the manifold mode is a single manifold mode and the position information indicates that the tail of the slab leaves the spray coverage area of ​​the inlet manifold.

[0045] Understandably, the control device 10 of the slab production line also includes: a third manifold control unit, used to open the inlet manifold if the manifold mode is a dual manifold mode and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold; to close the inlet manifold if the manifold mode is a dual manifold mode and the position information indicates that the tail of the slab is away from the spray coverage area of ​​the inlet manifold; to open the outlet manifold if the manifold mode is a dual manifold mode and the position information indicates that the head of the slab is close to the spray coverage area of ​​the outlet manifold of the descaling machine; and to close the outlet manifold if the manifold mode is a dual manifold mode and the position information indicates that the tail of the slab is away from the spray coverage area of ​​the outlet manifold.

[0046] It is understood that the information acquisition unit 110 is specifically used to: acquire the material type of the slab; if the material type is a preset material type, use the dual-manifold mode as the manifold mode of the descaling machine; otherwise, use the single-manifold mode as the manifold mode of the descaling machine. The slab is a medium-thick plate; the preset material types are wear-resistant steel, weather-resistant steel, high-strength steel, bridge steel, and steel plates with a thickness of 6mm to 7mm.

[0047] It is understandable that the control device 10 of the slab production line also includes: a pressure adjustment unit, used to adjust the start and stop pressure range of the descaling pump group of the descaling machine to a preset pressure range; the preset pressure range is 19 MPa to 22 MPa.

[0048] It is understandable that the control device 10 of the slab production line also includes: a prompting unit, used to obtain the current pressure of the descaling pump group; if the current pressure is less than the lower limit of the preset pressure range and the duration is greater than the preset duration threshold, output a prompting message to indicate that the pressure is too low.

[0049] Understandably, the control device 10 of the slab production line also includes: a height determination unit, used to obtain the thickness of the slab; and based on the thickness of the slab, to determine the height of the target manifold during the water jet flow; wherein the target manifold is an inlet manifold or an outlet manifold; the greater the thickness of the slab, the greater the height of the target manifold. Specifically, determining the height of the target manifold during the water jet flow based on the thickness of the slab includes: summing the thickness of the slab with a preset value as the height of the target manifold during the water jet flow.

[0050] It should be understood that further implementation details of the control device 10 for the slab production line in the embodiments of the present invention are described in the foregoing control method for the slab production line, and will not be repeated here for the sake of brevity.

[0051] Based on the same inventive concept, embodiments of the present invention also provide an electronic device, such as... Figure 3 As shown, it includes a memory 304, a processor 302, and a computer program stored in the memory 304 and executable on the processor 302. The processor 302 executes the program to implement the steps described in any embodiment of the control method for the slab production line.

[0052] Among them, Figure 3 In this document, a bus architecture (represented by bus 300) is used. Bus 300 may include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 302 and memory represented by memory 304. Bus 300 may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 305 provides an interface between bus 300 and receiver 301 and transmitter 303. Receiver 301 and transmitter 303 may be the same element, i.e., a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 302 is responsible for managing bus 300 and general processing, while memory 304 can be used to store data used by processor 302 during operation.

[0053] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this invention and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units can be integrated into a single processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.

[0054] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0055] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0056] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0057] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A control method for a slab production line, characterized in that, The slab production line includes a heating furnace, a descaling machine located downstream of the heating furnace, and a position detection element located between the heating furnace and the descaling machine; the method includes: After the slab exits the heating furnace, the manifold mode of the descaling machine is obtained, as well as the position information of the position detection element for position detection of the slab is obtained. If the manifold mode is a single manifold mode, and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold of the descaling machine, the inlet manifold is opened; If the manifold mode is a single manifold mode, and the position information indicates that the tail of the slab leaves the spray coverage area of ​​the inlet manifold, the inlet manifold is closed.

2. The control method for a slab production line according to claim 1, characterized in that, Also includes: If the manifold mode is a dual manifold mode, and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold, the inlet manifold is opened; If the manifold mode is a dual manifold mode, and the position information indicates that the tail of the slab leaves the spray coverage area of ​​the inlet manifold, the inlet manifold is closed; If the manifold mode is a dual manifold mode, and the position information indicates that the head of the slab is close to the spray coverage area of ​​the outlet manifold of the descaling machine, the outlet manifold is opened. If the manifold mode is a dual manifold mode, and the position information indicates that the tail of the slab leaves the spray coverage area of ​​the outlet manifold, the outlet manifold is closed.

3. The control method for a slab production line according to claim 1, characterized in that, The process of obtaining the manifold mode of the descaling machine includes: Obtain the material type of the slab; If the material type is a preset material type, the dual-manifold mode will be used as the manifold mode of the descaling machine; otherwise, the single-manifold mode will be used as the manifold mode of the descaling machine.

4. The control method for a slab production line according to claim 3, characterized in that, The slab is a medium-thick plate; the preset material type is wear-resistant steel, weather-resistant steel, high-strength steel, bridge steel, and steel plate with a thickness of 6mm to 7mm.

5. The control method for a slab production line according to claim 1, characterized in that, Also includes: Adjust the start-stop pressure range of the descaling pump group of the descaling machine to a preset pressure range; the preset pressure range is 19 MPa to 22 MPa.

6. The control method for a slab production line according to claim 5, characterized in that, Also includes: Obtain the current pressure of the descaling pump unit; If the current pressure is less than the lower limit of the preset pressure range and the duration is greater than the preset duration threshold, a prompt message indicating that the pressure is too low will be output.

7. The control method for a slab production line according to claim 1, characterized in that, Also includes: Obtain the thickness of the slab; Based on the thickness of the slab, the height of the target manifold during the water jet is determined; wherein, the target manifold is an inlet manifold or an outlet manifold; the greater the thickness of the slab, the greater the height of the target manifold.

8. The control method for a slab production line according to claim 7, characterized in that, Determining the height of the target manifold during water jetting based on the thickness of the slab includes: The sum of the thickness of the slab and the preset value is used as the height of the target manifold when the water jet is applied.

9. A control device for a slab production line, characterized in that, The slab production line includes a heating furnace, a descaling machine located downstream of the heating furnace, and a position detection element located between the heating furnace and the descaling machine; the device includes: The information acquisition unit is used to acquire the manifold mode of the descaling machine and the position information of the position detection element for position detection of the slab after the slab exits the heating furnace. The first manifold control unit is configured to open the inlet manifold if the manifold mode is a single manifold mode and the position information indicates that the head of the slab is close to the spray coverage area of ​​the inlet manifold of the descaling machine. The second manifold control unit is configured to close the inlet manifold if the manifold mode is a single manifold mode and the position information indicates that the tail of the slab leaves the spray coverage area of ​​the inlet manifold.

10. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method of any one of claims 1-8.

Images