Control method for heating medium-temperature oriented steel and related equipment
By utilizing gap coefficient and heating load control technology in the heating process of medium-temperature oriented steel, combined with physical intervention measures, the problem of local overheating caused by gaps in the cross-rolling mode was solved, thereby improving product quality and magnetic properties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2026-03-10
AI Technical Summary
In the cross-rolling mode, local overheating caused by the gap in steel loading between adjacent slabs during the heating process of medium-temperature oriented steel leads to decarburization and grain coarsening on the surface of the slab, affecting magnetic properties and product quality stability.
By obtaining the spacing and effective length of the steel loading gaps in the heating furnace, the gap coefficient is calculated, the target heating load is dynamically adjusted, and physical intervention measures such as inserting spare slabs are combined to suppress the accumulation of radiant heat and ensure that the slab temperature is within the process window.
It effectively suppressed local overheating, improved the heating quality of medium-temperature oriented steel, reduced the defect rate of finished wire rods, improved magnetic properties, and ensured product qualification rate and market competitiveness.
Smart Images
Figure CN121629148A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of steel production technology, and in particular to a control method and related equipment for heating medium-temperature oriented steel. Background Technology
[0002] Grain-oriented silicon steel is an indispensable soft magnetic material in the power industry. Among them, medium-temperature grain-oriented steel has become the mainstream product due to its comprehensive performance advantages. Its production process is long and has the characteristics of high silicon content, high heating temperature, and long furnace time, requiring multiple processes such as continuous casting, heating, hot rolling, and cold rolling. In the hot rolling stage, in order to improve production efficiency, a cross-rolling mode is generally adopted to organize production.
[0003] However, the cross-rolling pattern easily leads to unstable slab loading rhythm, especially during the waiting period for loading, resulting in excessively large gaps between adjacent slabs in the heating furnace. Because these gaps lack heat absorption by the slabs, the radiant heat from the furnace concentrates at the ends of the slabs before and after the gaps, causing localized temperatures far exceeding the process requirements. This localized overheating exacerbates surface decarburization and grain coarsening in the slabs, ultimately leading to linear defects in the finished product and severely degrading magnetic properties, becoming an industry-wide problem restricting product quality stability. Therefore, a method for controlling the heating of medium-temperature oriented steel is urgently needed to solve the aforementioned technical problems. Summary of the Invention
[0004] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key and essential technical features of the claimed technical solutions, nor is it intended to define the scope of protection of the claimed technical solutions.
[0005] In a first aspect, this application provides a method for controlling the heating of medium-temperature oriented steel, including: Obtain the steel loading gap distance between adjacent slabs in the heating furnace and the effective length of the heating furnace; The gap coefficient is determined based on the steel loading gap spacing and the effective length of the heating furnace; Based on the gap coefficient, the target heating load of the target furnace section corresponding to the steel loading gap spacing is determined.
[0006] In some implementations, before determining the target heating load of the target furnace section corresponding to the steel loading gap spacing based on the gap coefficient, the method further includes: Based on the neutral coefficient and the preset neutral coefficient threshold, the neutral intervention operation is determined.
[0007] After performing the gap intervention operation, the target heating load of the target furnace section corresponding to the steel loading gap spacing is determined based on the gap coefficient.
[0008] In some implementations, the decision to perform a neutral intervention operation is based on a neutral coefficient and a preset neutral coefficient threshold, including: When the gap coefficient is greater than the preset gap coefficient threshold, a gap intervention operation is determined to be executed. The gap intervention operation is to schedule the insertion of a pre-stored spare slab into the gap position of the steel loading.
[0009] In some implementations, the gap coefficient is determined based on the steel loading gap spacing and the effective length of the heating furnace, including: The gap coefficient is determined based on the ratio of the steel loading gap spacing to the effective length of the heating furnace.
[0010] In some implementations, the target heating load of the target furnace section corresponding to the steel loading gap is determined based on the gap coefficient, including: Obtain the standard heating load of the target furnace section; Based on the gap coefficient and standard heating load, the target heating load of the target furnace section corresponding to the steel loading gap spacing is determined.
[0011] In some implementations, it also includes: Adjust the current heating load of the target furnace section based on the target heating load.
[0012] In some implementations, after adjusting the current heating load of the target furnace section based on the target heating load, the method further includes: Obtain the furnace gas temperature on the upper and lower surfaces of the target furnace section where the slab is located; determine the temperature deviation based on the furnace gas temperature on the upper and lower surfaces; control the temperature deviation within the preset temperature difference range.
[0013] Secondly, this application proposes a control device for heating medium-temperature oriented steel, comprising: The furnace body parameter acquisition unit is used to acquire the steel loading gap distance between adjacent slabs in the heating furnace and the effective length of the heating furnace; The gap coefficient determination unit determines the gap coefficient based on the steel loading gap spacing and the effective length of the heating furnace; The target load optimization unit determines the target heating load of the target furnace section corresponding to the steel loading gap distance based on the gap coefficient.
[0014] Thirdly, an electronic device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program stored in the memory to implement the steps of the control method for heating medium-temperature oriented steel according to any one of the first aspects.
[0015] Fourthly, this application proposes a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the control method for heating medium-temperature oriented steel according to any one of the first aspects.
[0016] In summary, this application improves the heating quality of medium-temperature oriented steel by establishing a quantitative control mechanism for the spacing between steel loading gaps and the heating load. Specifically, the gap coefficient (the ratio of the steel loading gap spacing to the effective length of the furnace body) is used as a control parameter to locate the target furnace section corresponding to the gap, and the target heating load is calculated based on this coefficient. This method directly targets the heat accumulation effect in the gap area. When the gap coefficient increases, the system proportionally reduces the heating load of the target furnace section, thereby suppressing the abnormal temperature rise at the ends of the slab before and after the gap, and stabilizing the overall heating temperature of the slab within the process window of 1280–1290℃.
[0017] The method for controlling the heating of medium-temperature oriented steel proposed in this application, along with other advantages, objectives, and features of this application, will be partly apparent from the following description and partly understood by those skilled in the art through study and practice of this application. Attached Figure Description
[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit this specification. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This application provides a schematic flowchart of a method for controlling the heating of medium-temperature oriented steel. Figure 2 A schematic diagram of a control device for heating medium-temperature oriented steel provided in this application embodiment; Figure 3 This is a schematic diagram of a control electronic device for heating medium-temperature oriented steel, provided in an embodiment of this application. Detailed Implementation
[0019] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in a sequence other than that illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. The technical solutions of the embodiments of this application 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 this application, and not all of them.
[0020] Please see Figure 1 This is a schematic flowchart of a method for controlling the heating of medium-temperature oriented steel according to an embodiment of this application, which may specifically include: S110. Obtain the steel loading gap distance between adjacent slabs in the heating furnace and the effective length of the heating furnace; For example, in cross-rolling mode, due to differences in the charging rhythm of slabs of different steel grades, a waiting-for-material-charging state often occurs in the heating furnace, resulting in physical gaps between adjacent slabs. This step uses slab position sensors (such as infrared detection units or machine vision systems) deployed in the furnace to scan the distance between the ends of adjacent slabs in real time, capturing the charging gap distance L. 空 In this embodiment of the application, the steel loading gap spacing L 空 The value can be set to 1m, 2m, 3m, etc., depending on the actual situation; at the same time, the effective furnace length data L in the heating furnace design parameter library will be called. 炉 In this embodiment of the application, the effective furnace length data L 炉 The length is 43.6m; this data represents the total length of the continuous space within the furnace available for heating the slab. L 空 With L 炉 The acquisition of these parameters provides the basic spatial parameters for subsequent quantification of the thermal impact of the gap. Since there is no slab absorbing heat in the gap area, abnormal accumulation of furnace gas radiant heat will occur.
[0021] S120. Determine the gap coefficient based on the steel loading gap spacing and the effective length of the heating furnace; For example, by establishing a quantitative proportional relationship between the steel loading gap spacing and the effective length of the heating furnace, physical spatial characteristics are transformed into thermodynamic control parameters. Specifically, the steel loading gap spacing characterizes the length scale of the local area within the furnace without slab coverage, while the effective length of the heating furnace reflects the overall heat capacity distribution range of the furnace chamber. The ratio of the two, i.e., the gap coefficient, directly maps the potential risk level of radiant heat accumulation. As a dimensionless indicator, an increase in this coefficient means that the relative proportion of the gap area in the furnace space increases, and furnace gas radiant energy is more easily concentrated and conducted to the ends of slabs adjacent to the gap, leading to an increased risk of local temperature rise deviating from the process window. Through the proportional calculation of spatial parameters, a basis for determining the subsequent heat load control target is provided, thereby accurately suppressing temperature distribution distortion caused by gaps.
[0022] S130. Based on the gap coefficient, determine the target heating load of the target furnace section corresponding to the steel loading gap spacing.
[0023] For example, based on the gap coefficient, the system dynamically locates the target furnace section (such as the soaking zone or high-temperature heating zone) corresponding to the gap spacing during steel loading and determines its target heating load. Specifically, the gap coefficient quantifies the influence weight of the gap area in the furnace thermodynamic environment; when the gap coefficient increases, it indicates that the area without slab coverage is relatively expanded, leading to an increased risk of abnormal accumulation of furnace gas radiant heat to the ends of adjacent slabs. To suppress such local overheating, it is necessary to implement directional control of the heating load of the target furnace section directly above the gap. This control is achieved through the coupled calculation of the gap coefficient and the standard heating load of the target furnace section. The gap coefficient acts as a negative correction factor, proportionally reducing the standard load value (for example, when the gap coefficient is 0.1, the target load is adjusted to 90% of the standard value). This mechanism directly weakens the radiative heat transfer efficiency of the gap area, causing the actual heating intensity at the slab ends to return to the process safety window, thereby blocking the decarburization chain reaction and grain coarsening process caused by local overheating.
[0024] In summary, this application's embodiments effectively solve the problem of localized overheating caused by furnace gaps in cross-rolling mode by establishing a quantitative control mechanism for the steel loading gap spacing and heating load. Specifically, based on the real-time acquired steel loading gap spacing and effective furnace length, a gap coefficient is constructed as a control parameter to quantify the influence weight of the gap area on the thermodynamic environment. This coefficient is used to locate the target furnace section (e.g., the soaking zone) corresponding to the gap, and a target heating load is generated based on the coupling of the gap coefficient and the standard heating load (e.g., when the gap coefficient reaches 0.1, the load drops to 90% of the standard value). The method provided in this application's embodiments directly targets the radiative heat accumulation effect. When the gap coefficient increases, the heating intensity of the target furnace section is reduced proportionally, suppressing abnormal temperature rises at the slab ends before and after the gap, and ensuring that the overall slab heating temperature stably converges within the 1280–1290℃ process window, thereby improving the product qualification rate and market competitiveness of medium-temperature oriented steel.
[0025] In some instances, before determining the target heating load of the target furnace section corresponding to the steel loading gap spacing based on the gap coefficient, the following steps are also included: When the gap coefficient is greater than the preset gap coefficient threshold, a gap intervention operation is determined to be executed. The gap intervention operation is to schedule the insertion of a pre-stored spare slab into the gap position of the steel loading.
[0026] After performing the gap intervention operation, the target heating load of the target furnace section corresponding to the steel loading gap spacing is determined based on the gap coefficient.
[0027] For example, when the system determines that the gap coefficient n is greater than the preset gap coefficient threshold (0.125), a gap intervention operation is triggered. The core of this operation is to schedule the spare slabs pre-stored in the insulation pit to be inserted into the steel loading gap position. Specifically, this includes: based on the production plan sequence, before the start of the rolling batch, the first 10-20 medium-temperature oriented steel slabs in the planned sequence are not loaded into the furnace after being taken off the production line, but are instead hoisted to a dedicated insulation pit for slow cooling and storage; the insulation pit is covered with inert gas or designed with a heat insulation layer to maintain the slab temperature at 600-800℃ (to avoid complete cooling), ensuring that it can be quickly put into the heating process.
[0028] When the heating furnace enters the loading state due to cross-rolling, the estimated loading time is obtained in real time through the Production Execution System (MES) in coordination with the steelmaking and hot rolling processes. If the idle coefficient n is greater than the preset idle coefficient threshold (e.g., L is detected), 空 =5.45m, L 炉 =43.6m, n=0.125), then 2-3 spare slabs are extracted from the insulation pit and inserted into the production plan queue. The insertion position is precisely located in the gap area, dividing the original single gap into multiple small gaps (for example, after inserting 2 slabs, 3 independent gaps are formed, with the distance between each gap ≤1.82m, corresponding to n≤0.042). This physical intervention directly prevents the formation of excessive gaps, eliminating the basic conditions for abnormal accumulation of radiant heat from a spatial distribution perspective. After the slab insertion is completed, the system rescans the slab positions in the furnace and updates the steel loading gap distance L. 空 And based on the new L 空 The idle coefficient is recalculated. Then the target heating load determination logic (i.e., step S130) is executed again to ensure that the load adjustment is based on the latest furnace space status.
[0029] After inserting the spare slab, the target heating load control process continues based on the recalculated gap coefficient (n≤0.125 at this point). It is important to emphasize that even with the insertion of the spare slab, a small gap still exists between adjacent slabs (e.g., the normal steel loading gap of 30-50mm), and the corresponding gap coefficient n may be in the range of 0.001-0.125. Therefore, it is necessary to locate the target furnace section (e.g., the soaking zone or secondary heating zone) corresponding to the current gap position, obtain the standard heating load Q for that furnace section, and apply the formula Q... 空 =Q×(1-n) Dynamically calculate the target heating load. For example, if the residual gap coefficient n=0.08 after inserting the slab, the target load is adjusted to 92% of the standard value. This step ensures the compensatory suppression of the heat accumulation effect in the small gap area, forming a dual guarantee mechanism of spatial intervention and heat load regulation.
[0030] In summary, the embodiments of this application solve the problem of localized overheating caused by large gaps through the synergistic effect of physical intervention and thermodynamic control. The spare slab insertion mechanism forcibly divides the excessive gaps (n>0.125) into safe gaps (n≤0.125), avoiding abnormal concentration of furnace gas radiant heat at the slab ends; and subsequent dynamic load adjustment based on the residual gap coefficient further suppresses the edge thermal effect in the small gap region. This combined control ensures that the slab end temperature strictly converges within the 1280-1290℃ process window, reduces the surface decarburization depth and grain coarsening ratio, and ultimately reduces the linear crystal defect rate of the finished product, achieving stable magnetic properties with iron loss P1.7 / 50≤1.02W / kg and magnetic induction B8≥1.89T.
[0031] In some instances, the gap coefficient is determined based on the steel loading gap spacing and the effective length of the heating furnace, including: The gap coefficient is determined based on the ratio of the steel loading gap spacing to the effective length of the heating furnace.
[0032] For example, by establishing the steel loading gap spacing (L) 空 ) and the effective length of the heating furnace (L) 炉 The quantitative proportional relationship between these parameters transforms physical spatial characteristics into thermodynamic control parameters. Specifically, the gap spacing in the steel loading process characterizes the absolute length of the uncovered area between adjacent slabs in the heating furnace (e.g., measured values of 1m, 2m, or 5.45m), while the effective length of the heating furnace reflects the overall heat capacity distribution range of the furnace chamber (e.g., a fixed constant of 43.6m). The gap coefficient (n=L) is generated through a ratio calculation between these two parameters. 空 / L 炉This coefficient, a dimensionless scalar, directly maps the potential risk level of radiative heat accumulation. Its physical meaning is that as the value of n increases, it indicates a rise in the relative proportion of the furnace space occupied by the empty area. Radiation energy from the furnace top and sidewalls is more easily concentrated and conducted to the ends of adjacent slabs in the empty area, leading to an increased risk of local temperatures exceeding the process window (1280-1290℃). During the calculation, L... 空 L captures slab position data in real time using sensors deployed inside the furnace (such as infrared detection units or machine vision systems). 炉 Fixed values are retrieved from the furnace design parameter library; after both are input into the control system, a division operation is performed, and the output value n is used as the basis for subsequent heat load regulation.
[0033] In summary, this application's embodiments, through the normalization of spatial parameters, transform the complex problem of radiative heat conduction into a quantifiable risk indicator, providing a basis for suppressing local overheating. The introduction of the gap coefficient n establishes a correlation between the physical dimensions of the steel loading gap and the weight of its thermodynamic influence. When n ≤ 0.125 (i.e., the gap length does not exceed 12.5% of the furnace length), the risk is deemed controllable, and load adjustment compensation is implemented. When n > 0.125, a physical intervention mechanism (insertion of a spare slab) is triggered, preventing the formation of excessive gaps at the source. This application's embodiments avoid the blindness of traditional empirical control. Through real-time calculation of the n value and threshold comparison, corresponding control strategies are matched to ensure that the actual temperature of the slab ends before and after the gap strictly converges within the process window (1280-1290℃). Ultimately, this reduces the surface decarburization rate and grain coarsening ratio caused by local overheating, ensuring that the finished product's magnetic properties stably achieve an iron loss P1.7 / 50 ≤ 1.02 W / kg and a magnetic induction B8 ≥ 1.89 T.
[0034] In some instances, the target heating load for the target furnace section corresponding to the steel loading gap spacing is determined based on the gap coefficient, including: Obtain the standard heating load of the target furnace section; Based on the gap coefficient and standard heating load, the target heating load of the target furnace section corresponding to the steel loading gap spacing is determined.
[0035] For example, based on the actual location of the gap along the length of the heating furnace (e.g., the middle of the soaking zone), combined with the furnace section zoning topology data (preheating zone, heating zone, soaking zone, etc.), the furnace section directly above the gap is determined as the target furnace section. For instance, if the gap is located in the 20-25 meter range of the furnace length, and this range falls within the control range of the soaking zone, then the soaking zone is the target furnace section. The standard heating load Q of the target furnace section is obtained by calling the preset value stored in the heating furnace process database. This value is calculated from the slab steel grade, the target tapping temperature (1280-1290℃), and the heat balance model under normal steel charging conditions. For example, the standard load Q of the soaking zone is 850 GJ / h.
[0036] Calculate the target heating load Q 空 Using the neutral coefficient n as a negative correction factor, the formula Q is applied. 空 =Q×(1-n) generates the target value. For example, when n=0.1, Q 空 =850×(1 0.1) = 765 GJ / h. Based on this, the control system adjusts the opening of the fuel valves in the target furnace section, reducing the gas supply and directly weakening the radiant heat intensity in the idle area.
[0037] In summary, this application embodiment quantifies the thermodynamic impact of the gap region by coupling the gap coefficient n with the standard heating load Q, and generates the target heating load Q. 空 As the value of n increases, Q 空 By proportionally reducing the load (e.g., reducing it to 90% when n=0.1), the combustion intensity of the furnace section directly above the vacancy is directly suppressed, preventing abnormal accumulation of radiant heat to the ends of adjacent slabs. In this embodiment, the temperature of the slab ends before and after the vacancy is stabilized within the process safety window of 1280-1290℃. The thickness of the decarburized layer on the slab surface is reduced, grain size uniformity is improved, and the final product's linear crystal defect rate is reduced to below 5%. More than 90% of the products achieve magnetic properties with iron loss P1.7 / 50 ≤ 1.02 W / kg and magnetic induction B8 ≥ 1.89 T.
[0038] In some instances, it also includes: Adjust the current heating load of the target furnace section based on the target heating load.
[0039] For example, the control system is based on a determined target heating load (Q). 空 To adjust the current heating load of the target furnace section, the following steps are taken: First, adjust the target heating load Q... 空 This is converted to a fuel flow rate setpoint, specifically based on preset fuel calorific value parameters (e.g., gas calorific value 32 MJ / m³) and combustion efficiency coefficient (0.92), calculated using the formula: Fuel Flow Rate = Q 空 The theoretical flow rate is calculated as (fuel calorific value × combustion efficiency). Next, the opening-flow relationship curve of the fuel regulating valve corresponding to the target furnace section is retrieved to determine the target opening value that matches the theoretical flow rate. Finally, a control signal is sent to the actuator to drive the fuel regulating valve to adjust from its current opening to the target opening value, while simultaneously adjusting the combustion air supply according to the preset air-fuel ratio using the linked air volume regulating valve. During the adjustment process, furnace temperature feedback data for the target furnace section is collected in real time. If the actual temperature deviates from the set value by more than ±10℃, a PID closed-loop control algorithm is used to fine-tune the opening value until the actual heating load stably converges to Q. 空 .
[0040] In summary, this embodiment of the application achieves heat suppression in the idle area by converting the target heating load into fuel valve opening operation. Specifically, based on the quantitative conversion of fuel calorific value and combustion efficiency, it ensures that the target load Q is controlled. 空 It is accurately mapped to physical flow rate; combined with the pre-calibration of the valve opening-flow relationship curve, the conversion from flow rate setpoint to actuator action is realized; synchronous air-fuel ratio regulation ensures complete combustion and avoids incomplete combustion caused by load reduction.
[0041] In some instances, after adjusting the current heating load of the target furnace section based on the target heating load, the following is also included: Obtain the furnace gas temperature of the upper and lower surfaces of the target furnace section where the slab is located; The temperature deviation is determined based on the furnace gas temperature of the upper surface and the furnace gas temperature of the lower surface. Control the temperature deviation within the preset temperature difference range.
[0042] For example, after adjusting the heating supply to the target furnace section based on the target heating load, the furnace gas temperature (T) on the upper surface of the target furnace section where the slab is located is collected in real time using a high-temperature thermocouple sensor array deployed at the top and bottom of the heating furnace. 上 ) and the furnace gas temperature on the lower surface (T) 下 The upper surface temperature measuring point is located 100mm below the furnace top, vertically aligned with the center area of the upper surface of the slab; the lower surface temperature measuring point is located in the gap of the furnace bottom support slide rail, 80mm from the lower surface of the slab. Temperature data is transmitted to the control system via a shielded cable, updated at a sampling frequency of 1Hz, and noise is eliminated using a Kalman filter algorithm to generate a stable temperature signal.
[0043] Based on real-time acquired T 上 With T 下 Calculate the absolute temperature deviation ΔT = |T 上 -T 下 The control system compares ΔT with a preset temperature difference range [5℃, 15℃]. If ΔT < 5℃, it determines that the lower surface is underheated and generates a positive gas flow regulation (+ΔQ), proportionally increasing the gas valve opening of the lower burner. If ΔT > 15℃, it indicates that the upper surface is radiating overheated and generates a negative gas flow regulation (-ΔQ), decreasing the gas valve opening of the upper burner. The regulation amount ΔQ is dynamically calculated using a PID control algorithm, and its output value satisfies ΔQ = K. p ×e(t)+K i ∫e(t)dt+K d ×de(t) / dt, where e(t)=|ΔT-10℃| is the deviation of the setpoint (10℃), K p K i K dThese are the pre-calibrated proportional, integral, and derivative coefficients. During execution, the gas flow rate adjustment step is limited to ±2% / s to avoid valve overshoot, until ΔT converges to the preset temperature difference range.
[0044] In summary, the embodiments of this application improve the three-dimensional heating uniformity of the slab by controlling the temperature difference between the upper and lower surfaces of the furnace. When the temperature difference ΔT is stably within the range of 5-15℃, the difference in heat conduction rate between the upper and lower surfaces of the slab is strictly suppressed, avoiding internal thermal stress cracks in the slab caused by the lag in heating of the lower surface, or localized thickening of the decarburized layer caused by overheating of the upper surface.
[0045] Please see Figure 2 The diagram below illustrates the structure of a control device for heating medium-temperature oriented steel, as provided in an embodiment of this application. The device includes: The furnace body parameter acquisition unit 21 is used to acquire the steel loading gap distance between adjacent slabs in the heating furnace and the effective length of the heating furnace. The gap coefficient determination unit 22 determines the gap coefficient based on the steel loading gap spacing and the effective length of the heating furnace; The target load optimization unit 23 determines the target heating load of the target furnace section corresponding to the steel loading gap distance based on the gap coefficient.
[0046] Please see Figure 3 This application also provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor. When the processor 320 executes the computer program 311, it implements the steps of a control method for heating medium-temperature oriented steel.
[0047] Since the electronic device described in this embodiment is the device used to implement the control device for heating medium-temperature oriented steel in the embodiment of this application, those skilled in the art can understand the specific implementation method and various variations of the electronic device in this embodiment based on the method described in the embodiment of this application. Therefore, how the electronic device implements the method in the embodiment of this application will not be described in detail here. Any device used by those skilled in the art to implement the method in the embodiment of this application is within the scope of protection of this application.
[0048] In practice, when the computer program 311 is executed by the processor, it can implement any of the embodiments corresponding to the first aspect.
[0049] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0050] Those skilled in the art will understand that embodiments of this application can provide methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-readable storage media containing computer-readable program code.
[0051] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.
[0052] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.
[0053] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.
[0054] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to perform... Figure 1 The flowchart of a method for controlling the heating of medium-temperature oriented steel in a corresponding embodiment.
[0055] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, computer instructions may be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium may be any usable medium that a computer can store or a data storage device such as a server or data center that integrates one or more usable media. The usable medium may be a magnetic medium, an optical medium, or a semiconductor medium, etc.
[0056] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.
[0057] In the several embodiments provided in this application, it should be understood that the disclosed devices, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Furthermore, the mutual couplings or direct couplings or communication connections shown or discussed may be indirect couplings or communication connections through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.
[0058] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0059] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated units described above can be implemented in the form of hardware and / or software functional units.
[0060] 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 this application, 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 to execute all or part of the steps of the methods in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory, magnetic disks, or optical disks.
[0061] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
[0062] Although preferred embodiments have been described in this specification, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications that fall outside the scope of this specification.
[0063] Obviously, those skilled in the art can make various modifications to this specification without departing from its spirit and scope. Therefore, this specification also intends to include any modifications that fall within the scope of the claims and their equivalents.
Claims
1. A method of controlling heating of an intermediate temperature oriented steel, characterized by, The method comprises the following steps: obtaining the steel loading empty block spacing between adjacent slabs in the heating furnace and the effective length of the heating furnace; determining an empty block coefficient based on the steel loading empty block spacing and the effective length of the heating furnace; determining the target heating load of the target furnace section corresponding to the steel loading empty block spacing based on the empty block coefficient.
2. The method of claim 1, wherein, Before the step of determining the target heating load of the target furnace section corresponding to the steel loading empty block spacing based on the empty block coefficient, the method further comprises the following steps: determining to perform an empty block intervention operation based on the empty block coefficient and a preset empty block coefficient threshold value; after performing the empty block intervention operation, determining the target heating load of the target furnace section corresponding to the steel loading empty block spacing based on the empty block coefficient.
3. The method of claim 2, wherein, The step of determining to perform an empty block intervention operation based on the empty block coefficient and a preset empty block coefficient threshold value comprises the following step: when the empty block coefficient is greater than the preset empty block coefficient threshold value, determining to perform the empty block intervention operation, wherein the empty block intervention operation is an operation of scheduling a pre-stored standby slab to be inserted into the steel loading empty block position.
4. The method of claim 1, wherein, The step of determining an empty block coefficient based on the steel loading empty block spacing and the effective length of the heating furnace comprises the following step: determining the empty block coefficient based on the ratio of the steel loading empty block spacing to the effective length of the heating furnace.
5. The method of claim 1, wherein, The step of determining the target heating load of the target furnace section corresponding to the steel loading empty block spacing based on the empty block coefficient comprises the following steps: obtaining a standard heating load of the target furnace section; determining the target heating load of the target furnace section corresponding to the steel loading empty block spacing based on the empty block coefficient and the standard heating load.
6. The method of claim 1, wherein, The method further comprises the following step: adjusting the current heating load of the target furnace section based on the target heating load.
7. The method of claim 6, wherein, After the step of adjusting the current heating load of the target furnace section based on the target heating load, the method further comprises the following steps: obtaining the upper surface furnace gas temperature and the lower surface furnace gas temperature of the target furnace section where the slab is located; determining a temperature deviation based on the upper surface furnace gas temperature and the lower surface furnace gas temperature; controlling the temperature deviation to be within a preset temperature deviation range.
8. A control device for heating of a medium temperature oriented steel, characterized in that The method comprises the following steps: a furnace body parameter acquisition unit is configured to obtain the steel loading empty block spacing between adjacent slabs in the heating furnace and the effective length of the heating furnace; an empty block coefficient determination unit is configured to determine an empty block coefficient based on the steel loading empty block spacing and the effective length of the heating furnace; a target load optimization unit is configured to determine the target heating load of the target furnace section corresponding to the steel loading empty block spacing based on the empty block coefficient.
9. An electronic device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor is configured to execute the computer program stored in the memory to implement the steps of the control method for heating a medium temperature oriented steel according to any one of claims 1 to 7.
10. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executable by the processor to implement the control method for heating a medium temperature oriented steel according to any one of claims 1 to 7.