System and method for roll side pressure overrunning redistribution

Abstract

This invention provides a system and method for redistributing excessive side pressure on vertical rolls, comprising: first, acquiring the vertical roll mill pass mode, initial calculated side pressure, maximum side pressure, and load allocation, and normalizing the load allocation; then, checking the initial calculated side pressure, setting the side pressure of the pass exceeding the maximum side pressure as the maximum side pressure, subtracting the corresponding load and setting it to zero, and calculating the remaining total excess; subsequently, performing iterative calculation and allocation, iterating when both the remaining total excess and the total load are greater than 0, calculating the side pressure to be allocated, adjusting according to the relationship with the maximum side pressure, accumulating the allocated side pressure, updating the calculated side pressure, and processing the load for the excess side pressure, continuously updating the remaining total excess until the conditions are met; this invention, by iteratively calculating the excessive side pressure of the vertical rolls and rationally redistributing the side pressure of each pass, can maximize and rationally utilize the side pressure capacity of the vertical rolls while ensuring the final width accuracy.

Description

Technical Field

[0001] This invention belongs to the field of hot-rolled strip steel technology, specifically, it relates to a system and method for redistributing excessive side pressure on vertical rolls. Background Technology

[0002] The roughing zone of a traditional hot strip mill consists of two sets of reversible roughing mills. Each set of roughing mills is composed of a horizontal roll mill and a vertical roll mill. The horizontal roll mill is responsible for controlling the strip thickness, while the vertical roll mill is mainly responsible for controlling the strip width.

[0003] Vertical rolling mills reciprocate-roll strip steel according to different rolling pass patterns (e.g., 3+3, 1+5, 3+5, 1+7, etc.). In each odd-numbered pass, the vertical rolling mill applies a certain amount of lateral pressure to the incoming slab to precisely control the strip width and ensure that the final finished product width meets production requirements. The amount of lateral pressure and the opening degree of the vertical rolling mill in each pass are calculated by a model system.

[0004] For example, patent document CN110756592A discloses a method and apparatus for controlling the width of the tail of hot-rolled strip steel, including: when the finished strip steel is detected to be an ultra-wide strip steel at the tail, acquiring a first type of parameter, and determining the starting point and distance of short-stroke control based on the first type of parameter; acquiring a second type of parameter, and determining the target opening of the vertical roll based on the second type of parameter; during the rolling process of the slab to be rolled, when the vertical roll is located at the starting point of short-stroke control, setting the opening of the vertical roll as the target opening, and controlling the vertical roll to maintain the target opening within the distance of short-stroke control; based on the above calculation method, calculating the force application point of the vertical roll on the slab and the magnitude of the lateral pressure to be applied, and thereby controlling the vertical roll to adjust the width of the strip steel, improving the control accuracy of the strip steel width, thereby improving the quality of the finished strip steel.

[0005] For example, patent document CN119426378A discloses a rolling width control method based on continuous optimization of side pressure strategy, including: using steel grade, billet thickness, billet width, finished product thickness, and total side pressure as indexes, pre-setting multiple maximum side pressure value strategies for each type of steel grade; before rough rolling, selecting a maximum side pressure value strategy from the pre-set multiple maximum side pressure value strategies according to the steel grade, actual side pressure requirements, and rough rolling width requirements; determining the number of rolling passes and the side pressure amount for each pass based on the selected maximum side pressure value strategy; during rough rolling, based on the selected number of rolling passes and the side pressure amount for each pass, correcting and adjusting the side pressure amount for subsequent passes according to the actual rough rolling width measured after the previous pass. This invention can improve the rolling width control accuracy, significantly reduce overwidth and negative width ratios, and significantly improve the finished product yield.

[0006] However, in actual production, to ensure production stability and product quality, it is necessary to comprehensively consider factors such as width-to-thickness ratio, vertical roll protection, control of edge peeling defects, and anti-jamming measures. Based on this consideration, the process strictly limits the maximum side pressure for each pass, and the side pressure calculated by the model for each pass must not exceed this maximum. When the planned side pressure (i.e., the difference between the slab width and the finished product width) is large, or when the maximum side pressure for each pass is small, the problem of calculated side pressure exceeding the limit can easily occur. At the same time, mainstream models on the market, such as TMEIC and GE, also have problems such as missing related functions or unreasonable redistribution. Summary of the Invention

[0007] To address the shortcomings of existing technologies, the present invention aims to provide a method for redistributing excessive side pressure on vertical rollers, comprising:

[0008] Step S1: Obtain the pass mode, initial calculated side pressure, maximum side pressure, and load distribution of the vertical roll mill;

[0009] Step S2: Normalize the load allocation to obtain the normalized load for each pass;

[0010] Step S3: Perform an initial check on the initial calculated side pressure, determine the initial number of over-limit passages, and calculate the remaining total over-limit amount;

[0011] Step S4: Iteratively calculate the remaining total excess amount and redistribute it to all tracks.

[0012] Preferably, step S2 includes:

[0013] Step S201: Normalize the load distribution of the vertical rolling mill and lock the initial total load for subsequent calculations to 1;

[0014] Step S202: Calculate the normalized load for each pass.

[0015] Preferably, step S3 includes:

[0016] Step S301: Compare the initial calculated lateral pressure with the maximum lateral pressure for each pass;

[0017] Step S302: If the initially calculated lateral pressure is less than the maximum lateral pressure, no processing is required;

[0018] Step S303: When the initial calculated lateral pressure is not less than the maximum lateral pressure, set the lateral pressure of the current track to the maximum lateral pressure, subtract the load of the current track from the total load, and set the load of the current track to 0.

[0019] Step S304: After all rounds of calculations have been completed, the remaining total excess amount can be obtained.

[0020] Preferably, step S4 includes:

[0021] Step S401: Determine the remaining total overload and total load. If both are greater than 0, that is, there is an overload, and there are passes that can accept the overload, then proceed to iterative calculation.

[0022] Step S402: Calculate the amount of side pressure to be allocated for the current track based on the specific load;

[0023] Step S403: Determine whether the sum of the initial calculated lateral pressure and the lateral pressure to be allocated for the current track is greater than or equal to the maximum lateral pressure. If so, set the lateral pressure to be allocated to the allocable lateral pressure, which is the maximum lateral pressure minus the initial calculated lateral pressure.

[0024] Step S404: Calculate the sum of the initial calculated lateral pressure and the lateral pressure to be allocated to obtain the new calculated lateral pressure;

[0025] Step S405: Accumulate the amount of side pressure to be allocated to obtain the amount of side pressure already allocated in this cycle;

[0026] Step S406: Determine the new calculated lateral pressure. If it exceeds the maximum lateral pressure, subtract the current track load from the total load and set the current track load to 0.

[0027] Step S407: Subtract the allocated side pressure from the remaining total excess amount to obtain the new remaining total excess amount, and enter the next iteration loop until the condition is met to exit.

[0028] This invention proposes a system for redistributing excessive side pressure on vertical rollers, comprising:

[0029] Module M1: Obtains the pass mode, initial calculated side pressure, maximum side pressure, and load distribution of the vertical roll mill.

[0030] Module M2: Normalizes the load distribution to obtain the normalized load for each pass;

[0031] Module M3: Performs an initial check on the initial calculated side pressure, determines the initial number of over-limit tracks, and calculates the remaining total over-limit amount;

[0032] Module M4: Iteratively calculates the remaining total excess and redistributes it to all tracks.

[0033] Preferably, the module M2 includes:

[0034] Module M201: Normalizes the load distribution of the vertical rolling mill and locks the initial total load for subsequent calculations to 1;

[0035] Module M202: Calculates the normalized load for each pass.

[0036] Preferably, the module M3 includes:

[0037] Module M301: Compares the initial calculated lateral pressure with the maximum lateral pressure for each pass;

[0038] Module M302: If the initially calculated lateral pressure is less than the maximum lateral pressure, no processing is performed;

[0039] Module M303: When the initial calculated lateral pressure is not less than the maximum lateral pressure, the lateral pressure of the current track is set to the maximum lateral pressure, the total load is subtracted from the load of the current track, and the load of the current track is set to 0.

[0040] Module M304: Once all rounds of calculations have been completed, the remaining total excess amount can be obtained.

[0041] Preferably, the module M4 includes:

[0042] Module M401: Determines the remaining total overload and total load. If both are greater than 0, indicating an overload, and there are available track passes to accommodate the overload, iterative calculation begins.

[0043] Module M402: Calculates the amount of side pressure to be allocated for the current track based on the specific load;

[0044] Module M403: Determine whether the sum of the initial calculated lateral pressure and the lateral pressure to be allocated for the current track is greater than or equal to the maximum lateral pressure. If so, set the lateral pressure to be allocated to the allocable lateral pressure, which is the maximum lateral pressure minus the initial calculated lateral pressure.

[0045] Module M404: Calculates the sum of the initial calculated lateral pressure and the lateral pressure to be allocated to obtain the new calculated lateral pressure;

[0046] Module M405: Accumulates the amount of side pressure to be allocated to obtain the amount of side pressure already allocated in this cycle;

[0047] Module M406: Determines the new calculated lateral pressure. If it exceeds the maximum lateral pressure, the total load is reduced by the current track load, and the current track load is set to 0.

[0048] Module M407: Subtract the allocated side pressure from the remaining total excess amount to obtain the new remaining total excess amount, and enter the next iteration loop until the condition is met to exit.

[0049] This invention proposes an apparatus for a method of redistributing excessive side pressure on vertical rolls. The method involves normalizing the load distribution data of the vertical rolls to obtain normalized data, performing an initial check on the initially calculated side pressure amount to identify the initial excess track and calculate the remaining total excess amount; then, the remaining total excess amount is iteratively calculated and reasonably distributed to all tracks.

[0050] This invention proposes a medium for implementing a method for redistributing excessive side pressure on vertical rollers. Using the aforementioned method, the side pressure on vertical rollers is rationally redistributed by sequentially reading calculation data, load normalization, initial checking, and iterative calculation, thereby making reasonable use of the side pressure capacity of the vertical rollers while ensuring the final width accuracy.

[0051] Compared with the prior art, the present invention has the following beneficial effects:

[0052] 1. This invention, through iterative calculation of excessive vertical roller side pressure and rational redistribution of side pressure in each pass, can maximize and rationally utilize the side pressure capacity of the vertical roller while ensuring the final width accuracy.

[0053] 2. This invention can be applied to the load distribution program of vertical rolls in various hot rolling production lines. The technology is simple and easy to implement and promotes its use.

[0054] 3. This invention achieves a rational redistribution of the side pressure of the vertical roller through steps such as reading calculation data, load normalization, initial inspection, and iterative calculation. It can also ensure the final width accuracy while making the maximum and reasonable use of the side pressure capacity of the vertical roller. Attached Figure Description

[0055] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0056] Figure 1 This is a schematic diagram of the layout of a hot-rolled strip steel production line for a method of redistributing excessive vertical roll side pressure proposed in this invention;

[0057] Figure 2 This is a schematic diagram of the initial inspection process for a method of reallocating excessive side pressure on a vertical roller proposed in this invention.

[0058] Figure 3 This is a schematic diagram of the iterative calculation process for a method of redistributing excessive side pressure on vertical rollers proposed in this invention;

[0059] The diagram shows:

[0060] drexall represents the total load;

[0061] drex represents load distribution;

[0062] remaindraft represents the remaining unallocated lateral pressure.

[0063] de represents the new calculated lateral pressure;

[0064] alloc represents the amount of side pressure to be allocated;

[0065] vemax represents the maximum lateral pressure.

[0066] distributed represents the allocated side pressure;

[0067] drexck represents the current track load;

[0068] 1 indicates a heating furnace;

[0069] 2 represents the vertical roll mill and the horizontal roll mill in the first group of reversible roughing mills;

[0070] 3 represents the vertical roll mill and horizontal roll mill in the second group of reversible roughing mills;

[0071] 4 indicates a hot roll box;

[0072] 5 indicates a finishing mill with small vertical rolls and a finishing mill with horizontal rolls;

[0073] 6 indicates the laminar flow cooling zone;

[0074] 7 indicates a winding machine. Detailed Implementation

[0075] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0076] This invention proposes a method for redistributing excessive side pressure on vertical rollers, comprising:

[0077] Step S1: Obtain the pass mode, initial calculated side pressure, maximum side pressure, and load distribution of the vertical roll mill;

[0078] Step S2: Normalize the load allocation to obtain the normalized load for each pass;

[0079] Further, step S2 includes:

[0080] Step S201: Normalize the load distribution of the vertical rolling mill and lock the initial total load for subsequent calculations to 1;

[0081] Step S202: Calculate the normalized load for each pass;

[0082] Step S3: Perform an initial check on the initial calculated side pressure, determine the initial number of over-limit passages, and calculate the remaining total over-limit amount;

[0083] Further, step S3 includes:

[0084] Step S301: Compare the initial calculated lateral pressure with the maximum lateral pressure for each pass;

[0085] Step S302: If the initially calculated lateral pressure is less than the maximum lateral pressure, no processing is required;

[0086] Step S303: When the initially calculated lateral pressure is not less than the maximum lateral pressure, set the lateral pressure of this course to the maximum lateral pressure, subtract the load of this course from the total load, and set the load of this course to 0.

[0087] Step S304: After all rounds of calculations have been completed, the remaining total excess amount can be obtained;

[0088] Step S4: Iteratively calculate the remaining total excess amount and redistribute it to all tracks;

[0089] Further, step S4 includes:

[0090] Step S401: Determine the remaining total overload and total load. If both are greater than 0, that is, there is an overload, and there are passes that can accept the overload, then proceed to iterative calculation.

[0091] Step S402: Calculate the amount of side pressure to be allocated for the current track based on the specific load;

[0092] Step S403: Determine whether the sum of the initial calculated lateral pressure and the lateral pressure to be allocated for the current track is greater than or equal to the maximum lateral pressure. If so, set the lateral pressure to be allocated to the allocable lateral pressure, which is the maximum lateral pressure minus the initial calculated lateral pressure.

[0093] Step S404: Calculate the sum of the initial calculated lateral pressure and the lateral pressure to be allocated to obtain the new calculated lateral pressure;

[0094] Step S405: Accumulate the amount of side pressure to be allocated to obtain the amount of side pressure already allocated in this cycle;

[0095] Step S406: Determine the new calculated side pressure. If it exceeds the maximum side pressure, subtract the load of this pass from the total load and set the load of this pass to 0.

[0096] Step S407: Subtract the allocated side pressure from the remaining total excess amount to obtain the new remaining total excess amount, and enter the next iteration loop until the condition is met to exit.

[0097] This invention proposes a system for redistributing excessive side pressure on vertical rollers, comprising:

[0098] Module M1: Obtains the pass mode, initial calculated side pressure, maximum side pressure, and load distribution of the vertical roll mill.

[0099] Module M2: Normalizes the load distribution to obtain the normalized load for each pass;

[0100] Furthermore, module M2 includes:

[0101] Module M201: Normalizes the load distribution of the vertical rolling mill and locks the initial total load for subsequent calculations to 1;

[0102] Module M202: Calculates the normalized load for each pass;

[0103] Module M3: Performs an initial check on the initial calculated side pressure, determines the initial number of over-limit tracks, and calculates the remaining total over-limit amount;

[0104] Furthermore, module M3 includes:

[0105] Module M301: Compares the initial calculated lateral pressure with the maximum lateral pressure for each pass;

[0106] Module M302: If the initially calculated lateral pressure is less than the maximum lateral pressure, no processing is performed;

[0107] Module M303: When the initial calculated lateral pressure is not less than the maximum lateral pressure, the lateral pressure of this track is set to the maximum lateral pressure, and the total load is subtracted from the load of this track, and the load of this track is set to 0.

[0108] Module M304: Once all rounds of calculations have been completed, the remaining total excess amount can be obtained;

[0109] Module M4: Iteratively calculates the remaining total excess and redistributes it to all tracks;

[0110] Furthermore, the module M4 includes:

[0111] Module M401: Determines the remaining total overload and total load. If both are greater than 0, indicating an overload, and there are available track passes to accommodate the overload, iterative calculation begins.

[0112] Module M402: Calculates the amount of side pressure to be allocated for the current track based on the specific load;

[0113] Module M403: Determine whether the sum of the initial calculated lateral pressure and the lateral pressure to be allocated for the current track is greater than or equal to the maximum lateral pressure. If so, set the lateral pressure to be allocated to the allocable lateral pressure, which is the maximum lateral pressure minus the initial calculated lateral pressure.

[0114] Module M404: Calculates the sum of the initial calculated lateral pressure and the lateral pressure to be allocated to obtain the new calculated lateral pressure;

[0115] Module M405: Accumulates the amount of side pressure to be allocated to obtain the amount of side pressure already allocated in this cycle;

[0116] Module M406: Determines the new calculated side pressure. If it exceeds the maximum side pressure, the total load is reduced by the load of that pass, and the load of that pass is set to 0.

[0117] Module M407: Subtract the allocated side pressure from the remaining total excess amount to obtain the new remaining total excess amount, and enter the next iteration loop until the condition is met to exit.

[0118] Preferably, as shown in the appendix Figure 2 As shown, this invention proposes a method for redistributing excessive side pressure on vertical rollers, comprising:

[0119] Step S30001: Start the process;

[0120] Step S30002: Set the number of passes to 0 and check the R1-1 passes;

[0121] Step S30003: Determine the relationship between the initial calculated lateral pressure and the maximum lateral pressure, and determine whether the initial calculated lateral pressure of the current track is greater than or equal to the maximum lateral pressure; if the determination is yes, proceed to step S30004; if the determination is no, proceed to step S30006.

[0122] Step S30004: Subtract the load of this particular circuit from the total load;

[0123] Step S30005: Set the load of this pass to 0, and then accumulate the remaining unallocated side pressure;

[0124] Step S30006: Increment the number of attempts by 1;

[0125] Step S30007: Determine whether all passes have been checked. If yes, proceed to step S30008; if no, return to step S30003 to continue checking the next pass.

[0126] Step S30008: End the process;

[0127] Preferably, as shown in the appendix Figure 3As shown, this invention proposes a method for redistributing excessive side pressure on vertical rollers, comprising:

[0128] Step S40001: The process begins to run;

[0129] Step S40002: Determine whether the remaining undistributed side pressure is greater than 0. If it is not greater than 0, proceed to step S400010; otherwise, proceed to step S40003.

[0130] Step S40003: Determine if the total load is greater than 0. If it is greater than 0, proceed to step S40004; otherwise, proceed to step S400010.

[0131] Step S40004: Enter the loop and redistribute the load calculation for all passes;

[0132] Step S40005: Calculate the amount of side pressure to be allocated to this track based on the current track load and the remaining unallocated side pressure.

[0133] Step S40006: Determine whether the sum of the initially calculated side pressure and the side pressure to be allocated is not less than the maximum side pressure. If it is satisfied, proceed to step S40007; otherwise, proceed to step S40008.

[0134] Step S40007: Adjust the amount of side pressure to be allocated to the maximum side pressure minus the initial calculated side pressure, and then update the initial calculated side pressure to the initial calculated side pressure plus the amount of side pressure to be allocated.

[0135] Step S40008: Update the remaining unallocated side pressure to the remaining unallocated side pressure minus the amount of side pressure to be allocated;

[0136] Step S40009: Accumulate the side pressure to be allocated for each pass to obtain the side pressure already allocated for this cycle;

[0137] Step S400010: Determine whether the allocated side pressure in this round is not less than the maximum side pressure. If it is satisfied, proceed to step S400011; otherwise, proceed to step S400013.

[0138] Step S400011: Subtract the current track load from the total load, and set the current track load to 0;

[0139] Step S400012: Increment the number of passes by 1;

[0140] Step S400013: Determine whether all passes have been checked. If the checks are complete, proceed to step S400014; otherwise, return to step S40005 to continue processing the next pass.

[0141] Step S400014: Determine whether the allocated side pressure in this round is less than 0. If it is less than 0, proceed to step S400015; otherwise, return to step S40002 to continue the loop.

[0142] Step S400015: Process execution ends;

[0143] Preferably, the method for redistributing excessive side pressure on vertical rollers proposed in this invention is as follows: Figure 1 As shown, taking the calculation process of a strip steel model on a certain day of a certain hot rolling production line as an example, the hot rolling production line includes: heating furnace 1, vertical and horizontal rolling mills in the first group of reversible roughing mills 2, vertical and horizontal rolling mills in the second group of reversible roughing mills 3, hot coil box 4, finishing mill small vertical and finishing mill horizontal rolling mill group 5, laminar flow cooling zone 6, coiler 7.

[0144] The calculation process for a certain strip steel model on a certain day of a certain hot rolling production line includes the following steps:

[0145] Step S10001: Read the calculation parameters, that is, read the strip S1 information in the example, which includes slab width of 1030mm, finished product width of 1000mm, planned side pressure of 30mm, roughing target exit width (hot state) of 1036mm, pass mode of 3+3, vertical roll load distribution ratio of 0.65:1:0.9:0.5, and maximum side pressure of each pass of 20, 38, 38, and 25 respectively;

[0146] Step S10002: Load normalization, that is, normalizing the vertical roller load distribution ratio of 0.65:1:0.9:0.5 to make the total load 1, and the normalized loads of each pass are 0.213:0.328:0.295:0.164 respectively;

[0147] Step S10003: Initial limit check, that is, after the check, R1-1 and R1-3 channels exceed the limit, while R2-1 and R2-3 channels do not exceed the limit. At this time, the remaining total excess amount is 9.65286, the total load is updated to 0.459, and the normalized load of each channel is updated to 0:0:0.295:0.164.

[0148] Step S10004: Iterative calculation, specifically including: Loop1: R1-1, R1-3 Tranche R2-1 and R2-3 are not exceeding limits. Based on the normalized load, R2-1 is allocated 0.928093, and R2-3 is allocated 3.55899. The side pressure already allocated in this round is 4.48708, and the remaining total excess is 5.47808. The total load is updated to 0.164, and the normalized load of each tranche is updated to 0:0:0:0.164. Loop 2: Tranche R1-1, R1-3, and R2-1 are exceeding limits, while R2-3 is not exceeding limits. R2-3 is allocated 5.47808. The side pressure already allocated in this round is 5.47808, and the remaining total excess is 4.76837e-07 (floating-point error, negligible). The iteration loop is exited, the allocation is completed, and the side pressure of each tranche is updated.

[0149] This invention proposes a device for redistributing the side pressure of vertical rollers when it exceeds the limit. The method involves normalizing the load distribution data of the vertical rollers to obtain normalized data, and simultaneously performing an initial check on the initially calculated side pressure to identify the initial over-limit tracks and calculate the remaining total over-limit amount. Subsequently, the remaining total over-limit amount is iteratively calculated and reasonably distributed to all tracks.

[0150] This invention proposes a method for redistributing excessive side pressure on vertical rollers. By adopting the method described above, the side pressure on vertical rollers is rationally redistributed by sequentially reading calculation data, load normalization, initial check, and iterative calculation, so as to make reasonable use of the side pressure capacity of vertical rollers and ensure the final width accuracy.

[0151] The present invention also provides a system for redistributing excessive side pressure on vertical rollers. The system for redistributing excessive side pressure on vertical rollers can be implemented by executing the process steps of the method for redistributing excessive side pressure on vertical rollers. That is, those skilled in the art can understand the method for redistributing excessive side pressure on vertical rollers as a preferred embodiment of the system for redistributing excessive side pressure on vertical rollers.

[0152] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A method of edger roll side pressure over-limit redistribution, characterized by, include: Step S1: Obtain the pass mode, initial calculated side pressure, maximum side pressure, and load distribution of the vertical roll mill; Step S2: Normalize the load allocation to obtain the normalized load for each pass; Step S3: Perform an initial check on the initial calculated side pressure, determine the initial number of over-limit passages, and calculate the remaining total over-limit amount; Step S4: Iteratively calculate the remaining total excess amount and redistribute it to all tracks; Step S3 includes: Step S301: Compare the initial calculated lateral pressure with the maximum lateral pressure for each pass; Step S302: If the initially calculated lateral pressure is less than the maximum lateral pressure, no processing is required; Step S303: When the initial calculated lateral pressure is not less than the maximum lateral pressure, set the lateral pressure of the current track to the maximum lateral pressure, subtract the load of the current track from the total load, and set the load of the current track to 0. Step S304: After all rounds of calculations have been completed, the remaining total excess amount can be obtained; Step S4 includes: Step S401: Determine the remaining total overload and total load. If both are greater than 0, that is, there is an overload, and there are passes that can accept the overload, then proceed to iterative calculation. Step S402: Calculate the amount of side pressure to be allocated for the current track based on the specific load; Step S403: Determine whether the sum of the initial calculated lateral pressure and the lateral pressure to be allocated for the current track is greater than or equal to the maximum lateral pressure. If so, set the lateral pressure to be allocated to the allocable lateral pressure, which is the maximum lateral pressure minus the initial calculated lateral pressure. Step S404: Calculate the sum of the initial calculated lateral pressure and the lateral pressure to be allocated to obtain the new calculated lateral pressure; Step S405: Accumulate the amount of side pressure to be allocated to obtain the amount of side pressure already allocated in this cycle; Step S406: Determine the new calculated lateral pressure. If it exceeds the maximum lateral pressure, subtract the current track load from the total load and set the current track load to 0. Step S407: Subtract the allocated side pressure from the remaining total excess amount to obtain the new remaining total excess amount, and enter the next iteration loop until the condition is met to exit.

2. The method of edger roll side pressure overkill redistribution according to claim 1, wherein, Step S2 includes: Step S201: Normalize the load distribution of the vertical rolling mill and lock the initial total load for subsequent calculations to 1; Step S202: Calculate the normalized load for each pass.

3. A system for redistributing excessive side pressure on vertical rollers, characterized in that, include: Module M1: Obtains the pass mode, initial calculated side pressure, maximum side pressure, and load distribution of the vertical roll mill. Module M2: Normalizes the load distribution to obtain the normalized load for each pass; Module M3: Performs an initial check on the initial calculated side pressure, determines the initial number of over-limit tracks, and calculates the remaining total over-limit amount; Module M4: Iteratively calculates the remaining total excess and redistributes it to all tracks; The module M3 includes: Module M301: Compares the initial calculated lateral pressure with the maximum lateral pressure for each pass; Module M302: If the initially calculated lateral pressure is less than the maximum lateral pressure, no processing is performed; Module M303: When the initial calculated lateral pressure is not less than the maximum lateral pressure, the lateral pressure of the current track is set to the maximum lateral pressure, the total load is subtracted from the load of the current track, and the load of the current track is set to 0. Module M304: Once all rounds of calculations have been completed, the remaining total excess amount can be obtained; The module M4 includes: Module M401: Determines the remaining total overload and total load. If both are greater than 0, indicating an overload, and there are available track passes to accommodate the overload, iterative calculation begins. Module M402: Calculates the amount of side pressure to be allocated for the current track based on the specific load; Module M403: Determine whether the sum of the initial calculated lateral pressure and the lateral pressure to be allocated for the current track is greater than or equal to the maximum lateral pressure. If so, set the lateral pressure to be allocated to the allocable lateral pressure, which is the maximum lateral pressure minus the initial calculated lateral pressure. Module M404: Calculates the sum of the initial calculated lateral pressure and the lateral pressure to be allocated to obtain the new calculated lateral pressure; Module M405: Accumulates the amount of side pressure to be allocated to obtain the amount of side pressure already allocated in this cycle; Module M406: Determines the new calculated lateral pressure. If it exceeds the maximum lateral pressure, the total load is reduced by the current track load, and the current track load is set to 0. Module M407: Subtract the allocated side pressure from the remaining total excess amount to obtain the new remaining total excess amount, and enter the next iteration loop until the condition is met to exit.

4. The system for redistributing excessive side pressure on the vertical roller according to claim 3, characterized in that, The module M2 includes: Module M201: Normalizes the load distribution of the vertical rolling mill and locks the initial total load for subsequent calculations to 1; Module M202: Calculates the normalized load for each pass.

5. An apparatus for a method of redistributing excessive side pressure on vertical rollers, characterized in that, The method of reallocating the side pressure of the vertical roll as described in any one of claims 1 to 2 involves normalizing the load distribution data of the vertical roll to obtain normalized data, performing an initial check on the initially calculated side pressure amount, identifying the initial over-limit tracks and calculating the remaining total over-limit amount, and then iteratively calculating the remaining total over-limit amount to reasonably allocate it to all tracks.

6. A medium for performing a method of redistributing excessive side pressure on vertical rollers, characterized in that, The method of redistributing excessive side pressure of vertical rolls according to any one of claims 1 to 2 involves sequentially reading calculation data, load normalization, initial inspection, and iterative calculation to rationally redistribute the side pressure of vertical rolls, making reasonable use of the side pressure capacity of vertical rolls while ensuring the final width accuracy.

Images