A method and device for grading and cooperative control of hot-rolled buckling head, electronic equipment and storage medium

Abstract

The present application relates to a kind of hot rolling buckling head grading collaborative control method, comprising: set buckling head amount threshold range;The buckling head amount collected is compared with buckling head amount threshold range, according to the comparison result judging buckling head situation and executing primary control or secondary control;Repeat the acquisition, comparison process until the rolling of all slabs is completed.The present application also relates to a kind of hot rolling buckling head grading collaborative control device, comprising setting module, acquisition module, comparison module, cycle module.The present application also relates to an electronic device and storage medium.Using the hot rolling buckling head grading collaborative control method, device, electronic device and storage medium designed by the present application, the risk of impact equipment caused by simply relying on roll speed adjustment in the control measures for buckling head when the heating furnace state is abnormal or the initial temperature field of slab is significantly unbalanced, and the problems of easy over-treatment or serious abnormal treatment, subsequent slab easy to repeat buckling head can be solved.

Description

Technical Field

[0001] This invention relates to the field of iron and steel metallurgy technology, specifically to a graded collaborative control method, device, electronic equipment, and storage medium for hot-rolled warp heads. Background Technology

[0002] On a hot rolling production line, slabs are heated to the set exit temperature in a furnace and then enter the roughing and finishing mills for rolling into finished products. During this process, due to factors such as uneven heating of the upper and lower surfaces of the slab, slight differences in the diameter of the upper and lower rolls, deviations in the rolling line elevation, and different roll wear conditions, the elongation of the upper and lower surfaces of the slab head often differs, resulting in an upward or downward bending phenomenon at the rolling exit. Generally, the upward bending of the slab head is called "curving head," and the downward bending is called "bending head," collectively referred to as "curving head and bending head."

[0003] The phenomenon of slab head lifting not only affects the bite stability of subsequent stands, but may also cause the slab head to collide with equipment such as roller conveyors, guide plates, and vertical rolls. This leads to equipment damage and downtime risks, as well as dimensional and surface quality defects in the slab head, thus affecting finished product quality and production rhythm. The risk of slab head lifting is particularly prominent in production conditions with larger slab dimensions or higher rolling speeds.

[0004] In existing technologies, control measures for warping are mainly focused on a single stage. For example, adjusting the difference in roller speed between the upper and lower working rollers can change the difference in elongation between the upper and lower surfaces of the slab, thereby correcting the warping trend to a certain extent; adjusting the slab heating regime in the heating furnace through experience or simple compensation methods to try to reduce the temperature difference between the upper and lower surfaces of the slab; and judging the warping trend on-site through the experience of operators, manually intervening in the production rhythm or temporarily adjusting certain process parameters.

[0005] However, in existing technologies for controlling slab tilting, when the furnace condition is abnormal or the initial temperature field of the slab is significantly unbalanced, the amount of tilting may approach or even exceed the effective range that can be compensated for by adjusting the roll speed difference. Simply relying on roll speed adjustment is insufficient to control the slab tilting within a safe range in a timely manner, posing a risk of the slab colliding with the equipment. Furthermore, simple roll speed adjustment is prone to over-treating minor anomalies or under-treating severe anomalies; and if severe tilting occurs in the slab, adjusting the roll speed only on the mill side can easily lead to repeated tilting problems in subsequent slabs.

[0006] Therefore, existing technologies have shortcomings and need to be improved and developed. Summary of the Invention

[0007] The present invention provides a graded and coordinated control method, device, electronic equipment, and storage medium for hot-rolled slab warping, which addresses the following issues in the prior art: when the furnace condition is abnormal or the initial temperature field of the slab is significantly unbalanced, the amount of warping may approach or even exceed the effective range that can be compensated by adjusting the roll speed difference. Simply relying on roll speed adjustment is insufficient to control the slab warping within a safe range in a timely manner, posing a risk of the slab colliding with the equipment; simple roll speed adjustment is prone to over-processing minor anomalies or under-processing severe anomalies; and after severe warping occurs in the slab, adjusting the roll speed only on the mill side can easily lead to repeated warping on subsequent slabs.

[0008] In a first aspect, the present invention provides a graded collaborative control method for hot-rolled warp ends, comprising:

[0009] Set the threshold range for the amount of button flipping;

[0010] Real-time data collection The amount of upturned head of the slab blank ,in, Indicates the first The No. 1 heating furnace slab blank; It is a natural number that is not less than 2. It is a natural number greater than 0; when The time indicates that the slab has a warped end. The time indicates the buckle of the slab blank. This indicates that the head of the slab is in a flat state;

[0011] Compare the amount of the popped button head With respect to the threshold range of the button popping amount, when the button popping amount When the value is within the threshold range of the warp head and is not zero, the slab is determined to have a slight warp head and primary control is executed. Primary control includes adjusting the speed difference between the upper and lower rolls to control the... The amount of the raised head of the slab blank, when the amount of the raised head When it is 0, maintain the first The rolling process parameters for the slab; otherwise, the slab is determined to have a severe warping head and secondary control is implemented. The secondary control includes first prioritizing the tapping of other heating furnaces through coordinated production scheduling, and then, for the heating furnace that produced the severely warped head slab, utilizing the tapping interval time to control the rolling process parameters for the slab. Temperature feedforward control is applied to the block and subsequent slabs. After temperature feedforward control is completed, the heating furnace is then... The blocks and subsequent slabs are fed into the rolling process, and the speed difference between the upper and lower rolls is maintained;

[0012] Repeat the above collection and comparison steps until all slabs have been rolled.

[0013] Furthermore, the setting of the threshold range for the amount of button flipping includes:

[0014] The maximum allowable deduction amount for the production equipment. and maximum head tilt ;

[0015] According to the maximum buckle amount and the maximum tilt amount Set the threshold range for the number of button pops as follows: ,in and This is the grading coefficient for the upturned buckle, and its value range is (0,1).

[0016] Furthermore, the real-time acquisition of the first The amount of upturned head of the slab blank The method is to use a button-lifting detector to collect data in real time. The amount of upturned head of the slab blank .

[0017] Furthermore, the primary control includes:

[0018] When the speeds of the upper and lower rolls are the same, if the first... If the slab blank has a warped shape, increase the speed of the upper roll or decrease the speed of the lower roll to increase the speed difference. The slab blank is fed into the rolling process; if the first If the slab blank has a buckle, then the speed of the upper roll is reduced or the speed of the lower roll is increased to increase the speed difference, thus affecting the first... The slab blank is fed into the rolling process;

[0019] When the speed of the upper roll is greater than the speed of the lower roll, if the first... If the slab blank has a warped shape, increase the speed of the upper roll or decrease the speed of the lower roll to increase the speed difference. The slab blank is fed into the rolling process; if the first If the slab blank has a clip, the speed of the upper roll is reduced or the speed of the lower roll is increased to reduce the speed difference. The slab blank is fed into the rolling process;

[0020] When the speed of the upper roll is less than the speed of the lower roll, if the first... If the slab blank has a warped shape, the speed of the upper roll can be increased or the speed of the lower roll can be decreased to reduce the speed difference. The slab blank is fed into the rolling process; if the first If the slab blank has a buckle, then the speed of the upper roll is reduced or the speed of the lower roll is increased to increase the speed difference, thus affecting the first... The slab blanks are fed into the rolling process.

[0021] Furthermore, the secondary control includes:

[0022] When the first The amount of upturned head of the slab blank If the amount of warped head is not within the threshold range, the slab is determined to have a severe warped head.

[0023] Coordinated production scheduling prioritizes steel output from other heating furnaces; simultaneously, for the heating furnace that produced the severely warped slab, according to a function... Calculate the target temperature difference Among them, when H>0, the deviation of the buckle head is... When H < 0, the deviation of the buckle head is considered. Using the steel tapping interval time to measure the first Temperature feedforward regulation is applied to the blocks and subsequent slabs, among which... Represents the temperature of the upper surface of the slab. This represents the temperature of the lower surface of the slab. and All are constants.

[0024] A second aspect of the present invention provides a graded collaborative control device for hot-rolled buckle heads, comprising:

[0025] The settings module is used to set the threshold range for the amount of button flaps;

[0026] The acquisition module is used to acquire data in real time. The amount of upturned head of the slab blank ,in, Indicates the first The No. 1 heating furnace slab blank; It is a natural number that is not less than 2. It is a natural number greater than 0; when The time indicates that the slab has a warped end. The time indicates the buckle of the slab blank. This indicates that the head of the slab is in a flat state;

[0027] The comparison module is used to compare the number of popped buckles. With respect to the threshold range of the button popping amount, when the button popping amount When the value is within the threshold range of the warp head and is not zero, the slab is determined to have a slight warp head and primary control is executed. Primary control includes adjusting the speed difference between the upper and lower rolls to control the... The amount of the raised head of the slab blank, when the amount of the raised head When it is 0, maintain the first The rolling process parameters for the slab; otherwise, the slab is determined to have a severe warping head and secondary control is implemented. The secondary control includes first prioritizing the tapping of other heating furnaces through coordinated production scheduling, and then, for the heating furnace that produced the severely warped head slab, utilizing the tapping interval time to control the rolling process parameters for the slab. Temperature feedforward control is applied to the block and subsequent slabs. After temperature feedforward control is completed, the heating furnace is then... The blocks and subsequent slabs are fed into the rolling process, and the speed difference between the upper and lower rolls is maintained;

[0028] The loop module is used to repeat the above acquisition and comparison steps until all slabs have been rolled.

[0029] In a third aspect, the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the electronic device implements the hierarchical collaborative control method for hot-rolled buckle heads.

[0030] In a fourth aspect, the present invention provides a computer-readable storage medium for storing a computer program that, when run on a computer, causes the computer to execute the hierarchical collaborative control method for hot-rolled buckle heads.

[0031] Beneficial effects:

[0032] As can be seen from the above technical solutions, the present invention provides a graded collaborative control method for hot-rolled warp heads, which has the following beneficial effects:

[0033] 1. A hierarchical collaborative control system with buckle tipping as the core indicator was constructed: By setting a threshold range based on the maximum allowable buckle tipping of the equipment, buckle tipping was divided into two levels: mild and severe, and each level corresponds to a different control strategy. This realized the transformation from "single-link adjustment" to "hierarchical strategy control", which is conducive to improving the pertinence and interpretability of the control strategy.

[0034] 2. A closed-loop coupling of rolling feedback, heating furnace temperature feedforward, and production scheduling was achieved: When a slab from a certain heating furnace exhibits severe tipping during subsequent rolling, not only is the problematic slab identified and processed, but other heating furnaces are also temporarily scheduled to replace its production task. At the same time, a function is used to adjust the temperature feedforward of subsequent slabs in that heating furnace, reducing the probability of tipping from the source and effectively feeding back the information of the "problematic slab" to the "previous heating process".

[0035] 3. Improved production safety and equipment protection capabilities: By directly linking the boundary between mild and severe tipping to the maximum allowable tipping amount of the equipment, and promptly switching to production scheduling and temperature control strategies in the event of severe tipping, the risk of slab head impacting the equipment is reduced, which helps protect critical equipment such as rolling mills, roller conveyors, and guides.

[0036] 4. Balancing production rhythm and control effect: Minor rollover can be corrected by adjusting the roller speed difference of the next slab in the same heating furnace, avoiding frequent disruptions to the production rhythm; severe rollover is addressed by scheduling qualified slabs from adjacent heating furnaces to continue rolling, maintaining continuous operation of the production line, while reserving time for temperature optimization of the heating furnace, reducing the impact of abnormalities on the production rhythm.

[0037] 5. Facilitates automation and algorithm expansion: This application uses a button-lifting detector as the data source, quantified button-lifting quantity and threshold range as criteria, and introduces a linear function relationship for temperature feedforward control, providing a clear data interface and control logic framework for the subsequent integration of multivariable control algorithms, optimization algorithms or intelligent decision-making methods into the automated control system.

[0038] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered part of the inventive subject matter of this disclosure, provided that such concepts do not contradict each other.

[0039] The foregoing and other aspects, embodiments, and features of the teachings of the present invention will be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the invention, such as features and / or beneficial effects of exemplary embodiments, will become apparent from the following description or may be learned through practice of specific embodiments according to the teachings of the present invention. Attached Figure Description

[0040] The accompanying drawings are not drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0041] Figure 1 This is a flowchart illustrating the hierarchical collaborative control method for hot-rolled buckle heads in an embodiment of this application.

[0042] Figure 2 This is a flowchart of step S102 of a graded collaborative control method for hot-rolled buckle heads in an embodiment of this application.

[0043] Figure 3 This is a flowchart of the first-level control of a hierarchical collaborative control method for hot-rolled buckle heads in an embodiment of this application.

[0044] Figure 4 This is a flowchart of the secondary control stage of a hierarchical collaborative control method for hot-rolled buckle heads in an embodiment of this application.

[0045] Figure 5 This is a comparison diagram of the hierarchical control effects in the embodiments of this application.

[0046] Figure 6 This is a schematic diagram of an electronic device according to an embodiment of this application. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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 some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this invention pertains.

[0048] The terms "first," "second," and similar words used in the specification and claims of this patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding "comprising" encompasses the features, integrals, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0049] However, in existing technologies for controlling slab tilting, when the furnace condition is abnormal or the initial temperature field of the slab is significantly unbalanced, the amount of tilting may approach or even exceed the effective range that can be compensated for by adjusting the roll speed difference. Simply relying on roll speed adjustment is insufficient to control the slab tilting within a safe range in a timely manner, posing a risk of the slab colliding with the equipment. Furthermore, simple roll speed adjustment is prone to over-treating minor anomalies or under-treating severe anomalies; and if severe tilting occurs in the slab, adjusting the roll speed only on the mill side can easily lead to repeated tilting problems in subsequent slabs.

[0050] In view of this, refer to Figure 1 This invention provides a graded collaborative control method for hot-rolled buckle heads, comprising:

[0051] Step S102: Set the threshold range for the amount of button popping.

[0052] Step S104: Real-time acquisition of the first... The amount of upturned head of the slab blank ,in, Indicates the first The No. 1 heating furnace slab blank; It is a natural number that is not less than 2. It is a natural number greater than 0; when The time indicates that the slab has a warped end. The time indicates the buckle of the slab blank. This indicates that the head of the slab is in a flat state.

[0053] Step S106: Compare the amount of buttonholes sticking up. With respect to the threshold range of button popping amount, when the button popping amount If the value of the warp head is within the threshold range and not zero, the slab is determined to have a slight warp head and primary control is executed. Primary control includes adjusting the speed difference between the upper and lower rolls to control the warp head. The amount of the raised head of the slab blank, when the amount of the raised head When it is 0, maintain the first The rolling process parameters for the slab; otherwise, the slab is determined to have a severe warping head and secondary control is implemented. Secondary control includes first prioritizing the tapping of other heating furnaces through coordinated production scheduling, and then, for the heating furnace that produced the severely warped head slab, utilizing the tapping interval time to... Temperature feedforward control is applied to the block and subsequent slabs. After temperature feedforward control is completed, the heating furnace is then... The blocks and subsequent slabs are fed into the rolling process, and the speed difference between the upper and lower rolls is maintained.

[0054] Step S108: Repeat the above steps S104 (collection) and S106 (comparison) until all slabs have been rolled.

[0055] Through steps S102 to S108, the detection results of the tilting head of a single slab are linked with production scheduling, temperature feedforward, and subsequent slab control to form a dynamic closed loop. In the case of mild tilting head, the tilting head amount of the next slab in the same furnace is controlled only by the difference in roll speed between the upper and lower rolls, avoiding excessive intervention in the production rhythm and maintaining the capacity utilization rate of the rolling line. The core of adjusting the roll speed difference is to flexibly adjust it in combination with the current process parameters and the trend of tilting head changes, rather than increasing or decreasing it in a fixed direction, and always precisely control it with the goal of reducing the amount of tilting head. In the case of severe tilting head, the heating furnace is temporarily removed from the current production sequence, and normal slabs from other heating furnaces are arranged to enter the rolling process first through production scheduling; during this interval, the temperature of the heating furnace that produces slabs with severe tilting head is controlled, thereby digesting the abnormality within a safe range, reducing the risk of accidents, and realizing the expansion from single-link control to cross-equipment and cross-process collaborative control, which is conducive to improving the overall stability of hot rolling production.

[0056] Hot rolling production lines typically include multiple heating furnaces and multi-stand rolling mills. Production scheduling manages the exit sequence of each heating furnace and the allocation of slabs. Mill control enables precise control of the rotational speeds of the upper and lower rolls, and heating furnace control sets and adjusts the furnace temperature profile and the temperature of each section. The aforementioned devices and control functions are known technologies. This application's embodiments, based on these, add head-lifting detection and hierarchical control logic, combining existing equipment and control systems with a new control flow to achieve hierarchical and coordinated control of hot-rolled head-lifting.

[0057] In some embodiments, a threshold range for the amount of button flipping is set, referring to... Figure 2 ,include:

[0058] Step S1021: Collect the maximum allowable deduction amount of the production equipment. and maximum head tilt .

[0059] Step S1022: Based on the maximum discount amount and maximum head tilt Set the threshold range for the number of button pops as follows: ,in and This is the grading coefficient for the upturned buckle, and its value range is (0,1).

[0060] By collecting data on the maximum allowable buckle amount and maximum buckle lift amount of the production equipment, and setting a threshold range for buckle lift amount, the judgment range of "slight buckle lift" is directly correlated with the equipment's allowable limit capacity. Furthermore, by adjusting... and The value can be flexibly controlled to determine the boundary between mild and severe buckling, depending on the rolling mill, slab specifications, and safety strategy. , The closer it is to 1, the closer the mild range is to the equipment's safety boundary; , When the threshold is relatively low, a larger safety margin is reserved. This approach avoids the control mismatch problem that may be caused by setting fixed thresholds based solely on experience, and ensures that the tiered control is coordinated with the specific equipment capabilities in terms of magnitude, which is conducive to ensuring safety and applicability.

[0061] In some embodiments, the first data is collected in real time. The amount of upturned head of the slab blank The method is to use a button-lifting detector to collect data in real time. The amount of upturned head of the slab blank .

[0062] By using a button-lifting head detector to collect the button-lifting head quantity in real time, the acquisition of the button-lifting head quantity is objective, continuous, and quantifiable, avoiding complete reliance on manual visual inspection or simple trigger signals. Real-time acquisition of the button-lifting head quantity is beneficial for building an online control system. Using the button-lifting head quantity as a feedback variable for control algorithm design improves control response speed and accuracy, and provides a reliable source of basic data for subsequent threshold comparison, grading judgment, and temperature feedforward control.

[0063] In some embodiments, a primary control reference Figure 3 ,include:

[0064] When the speeds of the upper and lower rolls are the same, if the first... If the slab blank has a warped shape, increase the speed of the upper roll or decrease the speed of the lower roll to increase the speed difference. The slab blank is fed into the rolling process; if the first If the slab blank has a buckle, then the speed of the upper roll is reduced or the speed of the lower roll is increased to increase the speed difference, thus affecting the first... The slab blank is fed into the rolling process;

[0065] When the speed of the upper roll is greater than the speed of the lower roll, if the first... If the slab blank has a warped shape, increase the speed of the upper roll or decrease the speed of the lower roll to increase the speed difference. The slab blank is fed into the rolling process; if the first If the slab blank has a clip, the speed of the upper roll is reduced or the speed of the lower roll is increased to reduce the speed difference. The slab blank is fed into the rolling process;

[0066] When the speed of the upper roll is less than the speed of the lower roll, if the first... If the slab blank has a warped shape, the speed of the upper roll can be increased or the speed of the lower roll can be decreased to reduce the speed difference. The slab blank is fed into the rolling process; if the first If the slab blank has a buckle, then the speed of the upper roll is reduced or the speed of the lower roll is increased to increase the speed difference, thus affecting the first... The slab blanks are fed into the rolling process.

[0067] In some embodiments, secondary control reference Figure 4 ,include:

[0068] When the first The amount of upturned head of the slab blank If the warp head is not within the threshold range, the slab is judged to have a severe warp head.

[0069] Coordinated production scheduling prioritizes steel output from other heating furnaces; simultaneously, for the heating furnace that produced the severely warped slab, according to a function... Calculate the target temperature difference Among them, when H>0, the deviation of the buckle head is... When H < 0, the deviation of the buckle head is considered. Using the steel tapping interval time to measure the first Temperature feedforward regulation is applied to the blocks and subsequent slabs, among which... Represents the temperature of the upper surface of the slab. This represents the temperature of the lower surface of the slab. and All are constants.

[0070] When the detected amount of popped button head is not in When the range is defined, in addition to determining severe buckling, the processing of the second heating furnace is also adjusted by scheduling adjacent heating furnaces. The slab blank is used to calculate the target temperature difference based on a function. Feedforward adjustment is implemented for the outlet temperature field of the furnace where the slab with severe warping occurs. By establishing a functional relationship between the amount of warping and the target temperature difference between the upper and lower surfaces of the slab, temperature control becomes a quantifiable and calculable feedforward control link. This facilitates targeted adjustments to the heating regime of subsequent slabs based on the actual measured warping situation. Adjacent furnaces can participate in processing the next slab, maintaining production rhythm using normal slabs from other furnaces without complete shutdown. Simultaneously, it provides time for adjusting the temperature parameters of the furnace corresponding to the slab with severe warping, balancing production continuity and anomaly correction.

[0071] This diversion control strategy allows minor rollover issues to be resolved within the current mill's control capabilities, while severe rollover issues are corrected at their source through scheduling and temperature feedforward, preventing multiple consecutive severe rollovers in the same heat and improving overall production continuity and safety. Simultaneously, this logic provides the control strategy with clear triggering conditions and execution paths, facilitating rule-based configuration and maintenance within automated systems.

[0072] In another embodiment, a hot-rolled roughing production line is producing SPC hot-rolled coils and has three heating furnaces. Measurements show that the maximum allowable reduction (i.e., the allowable reduction limit) in the roughing process of this production line is... The maximum tilting distance is -66mm (i.e., the tilting limit). The thickness is 70mm, and the buckle head grading coefficient is... and The threshold values ​​are 0.303 and 0.571 respectively, and the range of the buckle tip threshold is [-20mm, 40mm].

[0073] Implementation process: Steel was tapped from heating furnace #1, and the amount of warping was detected after rough rolling. The value is -28.3mm, exceeding the threshold range for the pop-out buckle [-20mm, 40mm], triggering the secondary level control. If the deviation is less than 0, the tipping amount deviation ∆h = -28.3 - (-20) = -8.3 mm. In this case, priority is given to scheduling steel tapping from heating furnace #2 or #3. Utilizing the tapping interval, temperature feedforward control is initiated to regulate the temperature field of the subsequent slabs from furnace #1. The temperature difference between the upper and lower surfaces is controlled at ∆T = 3.1 * ∆h - 0.2 = -25.93℃, meaning the upper surface temperature is controlled to be 25.93℃ lower than the lower surface temperature. After this adjustment, the tipping amount of the subsequent slabs from furnace #1 is effectively controlled within the threshold range without changing the original roll speed adjustment strategy. Figure 5 This is a comparison chart of the effects of graded control, used to visually demonstrate the actual corrective effect of the graded control strategy of this invention. The horizontal axis of the chart represents the rolled length of the slab (unit: mm), and the vertical axis represents the amount of warpage (unit: mm). Figure 5 It is evident that, after graded control, for the same rolling length, the smaller the absolute value of the amount of curling head, the better the control effect.

[0074] Another embodiment of the present invention also provides a graded collaborative control device for hot-rolled buckle heads, comprising:

[0075] The settings module is used to set the threshold range for the amount of button flaps.

[0076] The acquisition module is used to acquire data in real time. The amount of upturned head of the slab blank ,in, Indicates the first The No. 1 heating furnace slab blank; It is a natural number that is not less than 2. It is a natural number greater than 0; when The time indicates that the slab has a warped end. The time indicates the buckle of the slab blank. This indicates that the head of the slab is in a flat state.

[0077] The comparison module is used to compare the number of buttonholes that have popped open. With respect to the threshold range of button popping amount, when the button popping amount If the value of the warp head is within the threshold range and not zero, the slab is determined to have a slight warp head and primary control is executed. Primary control includes adjusting the speed difference between the upper and lower rolls to control the warp head. The amount of the raised head of the slab blank, when the amount of the raised head When it is 0, maintain the first The rolling process parameters for the slab; otherwise, the slab is determined to have a severe warping head and secondary control is implemented. Secondary control includes first prioritizing the tapping of other heating furnaces through coordinated production scheduling, and then, for the heating furnace that produced the severely warped head slab, utilizing the tapping interval time to... Temperature feedforward control is applied to the block and subsequent slabs. After temperature feedforward control is completed, the heating furnace is then... The blocks and subsequent slabs are fed into the rolling process, and the speed difference between the upper and lower rolls is maintained.

[0078] The loop module is used to repeat the above acquisition and comparison steps until all slabs have been rolled.

[0079] It should be noted that although several units or sub-units of the device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of this application, the features and functions of two or more units described above can be embodied in one unit. Conversely, the features and functions of one unit described above can be further divided and embodied by multiple units.

[0080] Based on the same inventive concept as the above method embodiments, this application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it enables the electronic device to implement the control method described in the above embodiments.

[0081] In one embodiment, the electronic device may be a server, and in this embodiment, the structure of the electronic device may be as follows: Figure 6 As shown, it includes a memory, a communication module, and one or more processors.

[0082] Memory is used to store computer programs executed by the processor. Memory can be mainly divided into a program storage area and a data storage area. The program storage area can store the operating system and programs required to run instant messaging functions, etc.; the data storage area can store various instant messaging information and operation instruction sets, etc.

[0083] Memory can be volatile memory, such as random access memory (RAM); memory can also be non-volatile memory, such as read-only memory, flash memory, hard disk drive (HDD), or solid-state drive (SSD); or memory can be any other medium capable of carrying or storing a desired computer program having the form of instructions or data structures and accessible by a computer, but is not limited thereto. Memory can be a combination of the above-mentioned types of memory.

[0084] A processor may include one or more central processing units (CPUs) or digital processing units, etc. The processor is used to implement the aforementioned audio data processing methods when it invokes computer programs stored in memory.

[0085] The communication module is used to communicate with terminal devices and other servers.

[0086] This application embodiment does not limit the specific connection medium between the above-described memory, communication module, and processor. This application embodiment... Figure 6 The memory and processor are connected via a bus, and the bus is in... Figure 6 The connections between other components are illustrated with arrows and are for illustrative purposes only, not as limiting information. Buses can be categorized as address buses, data buses, control buses, etc. For ease of description, Figure 6 The text uses only one arrow to describe it, but does not indicate that there is only one bus or one type of bus.

[0087] Based on the same inventive concept as the above-described method embodiments, embodiments of the present invention also provide a computer-readable storage medium for storing a computer program. When the computer program is run on a computer, it enables an electronic device to implement the control methods described in the above embodiments. The computer-readable storage medium can be a readable signal medium or a readable storage medium. A readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof.

[0088] Based on the same inventive concept as the above-described method embodiments, embodiments of the present invention also provide a computer program product. The computer program product includes a computer program that, when run on an electronic device, causes the electronic device to perform the steps of the control methods described above according to various exemplary embodiments of this application. The program product may take the form of any combination of one or more readable media. These computer program commands can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the commands executed by the processor of the computer or other programmable data processing device generate a process for implementing... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0089] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A graded collaborative control method for hot-rolled warp heads, characterized in that, include: Set the threshold range for the amount of button flipping; Real-time data collection The amount of upturned head of the slab blank ,in, Indicates the first The No. 1 heating furnace slab blank; It is a natural number that is not less than 2. It is a natural number greater than 0; when The time indicates that the slab has a warped end. The time indicates the buckle of the slab blank. This indicates that the head of the slab is in a flat state; Compare the amount of the popped button head With respect to the threshold range of the button popping amount, when the button popping amount When the value is within the threshold range of the warp head and is not zero, the slab is determined to have a slight warp head and primary control is executed. Primary control includes adjusting the speed difference between the upper and lower rolls to control the... The amount of the raised head of the slab blank, when the amount of the raised head When it is 0, maintain the first The rolling process parameters for the slab; otherwise, the slab is determined to have a severe warping head and secondary control is implemented. The secondary control includes first prioritizing the tapping of other heating furnaces through coordinated production scheduling, and then, for the heating furnace that produced the severely warped head slab, utilizing the tapping interval time to control the rolling process parameters for the slab. Temperature feedforward control is applied to the block and subsequent slabs. After temperature feedforward control is completed, the heating furnace is then... The blocks and subsequent slabs are fed into the rolling process, and the speed difference between the upper and lower rolls is maintained; Repeat the above collection and comparison steps until all slabs have been rolled.

2. The graded collaborative control method for hot-rolled buckle heads according to claim 1, characterized in that, The set threshold range for the amount of button flipping includes: Obtain the maximum allowable deduction amount of the production equipment. and maximum head tilt ; According to the maximum buckle amount and the maximum tilt amount Set the threshold range for the number of button pops as follows: ,in and This is the grading coefficient for the upturned buckle, and its value range is (0,1).

3. The graded collaborative control method for hot-rolled warp heads according to claim 1, characterized in that, The real-time acquisition of the first The amount of upturned head of the slab blank The method is to use a button-lifting detector to collect data in real time. The amount of upturned head of the slab blank .

4. The graded collaborative control method for hot-rolled warp heads according to claim 1, characterized in that, The primary control includes: When the speeds of the upper and lower rolls are the same, if the first... If the slab blank has a warped shape, increase the speed of the upper roll or decrease the speed of the lower roll to increase the speed difference. The slab blank is fed into the rolling process; if the first If the slab blank has a buckle, then the speed of the upper roll is reduced or the speed of the lower roll is increased to increase the speed difference, thus affecting the first... The slab blank is fed into the rolling process; When the speed of the upper roll is greater than the speed of the lower roll, if the first... If the slab blank has a warped shape, increase the speed of the upper roll or decrease the speed of the lower roll to increase the speed difference. The slab blank is fed into the rolling process; if the first If the slab blank has a clip, the speed of the upper roll is reduced or the speed of the lower roll is increased to reduce the speed difference. The slab blank is fed into the rolling process; When the speed of the upper roll is less than the speed of the lower roll, if the first... If the slab blank has a warped shape, the speed of the upper roll can be increased or the speed of the lower roll can be decreased to reduce the speed difference. The slab blank is fed into the rolling process; if the first If the slab blank has a buckle, then the speed of the upper roll is reduced or the speed of the lower roll is increased to increase the speed difference, thus affecting the first... The slab blanks are fed into the rolling process.

5. The graded collaborative control method for hot-rolled warp heads according to claim 1, characterized in that, The secondary control includes: When the first The amount of upturned head of the slab blank If the amount of warped head is not within the threshold range, the slab is determined to have a severe warped head. Coordinated production scheduling prioritizes steel output from other heating furnaces; simultaneously, for the heating furnace that produced the severely warped slab, according to a function... Calculate the target temperature difference Among them, when H>0, the deviation of the buckle head is... When H < 0, the deviation of the buckle head is considered. Using the steel tapping interval time to measure the first Temperature feedforward regulation is applied to the blocks and subsequent slabs, among which... Represents the temperature of the upper surface of the slab. This represents the temperature of the lower surface of the slab. and All are constants.

6. A graded collaborative control device for hot-rolled buckle heads, characterized in that, include: The settings module is used to set the threshold range for the amount of button flaps; The acquisition module is used to acquire data in real time. The amount of upturned head of the slab blank ,in, Indicates the first The No. 1 heating furnace slab blank; It is a natural number that is not less than 2. It is a natural number greater than 0; when The time indicates that the slab has a warped end. The time indicates the buckle of the slab blank. This indicates that the head of the slab is in a flat state; The comparison module is used to compare the number of popped buckles. With respect to the threshold range of the button popping amount, when the button popping amount When the value is within the threshold range of the warp head and is not zero, the slab is determined to have a slight warp head and primary control is executed. Primary control includes adjusting the speed difference between the upper and lower rolls to control the... The amount of the raised head of the slab blank, when the amount of the raised head When it is 0, maintain the first The rolling process parameters for the slab; otherwise, the slab is determined to have a severe warping head and secondary control is implemented. The secondary control includes first prioritizing the tapping of other heating furnaces through coordinated production scheduling, and then, for the heating furnace that produced the severely warped head slab, utilizing the tapping interval time to control the rolling process parameters for the slab. Temperature feedforward control is applied to the block and subsequent slabs. After temperature feedforward control is completed, the heating furnace is then... The blocks and subsequent slabs are fed into the rolling process, and the speed difference between the upper and lower rolls is maintained; The loop module is used to repeat the above acquisition and comparison steps until all slabs have been rolled.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it enables the electronic device to implement the hierarchical collaborative control method for hot-rolled buckle heads as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program that, when run on a computer, causes the computer to perform the hierarchical collaborative control method for hot-rolled buckles as described in any one of claims 1 to 5.

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