Coke oven height heating control method and device

Abstract

The invention discloses a coke oven height-direction heating control method, and relates to the technical field of coke oven heating combustion control, and the specific implementation scheme is as follows: constructing a physical model of a vertical flue in a combustion chamber of a coke oven under different simulation working conditions; simulating combustion states of air and fuel gas in each physical model by adopting a mathematical model; based on the combustion state, determining an index value of each physical model in the aspect of high-direction heating uniformity; and determining a target working condition based on the index values of all the physical models. And a reliable basis is provided for the design of the vertical flue of the coke oven.

Description

Technical Field

[0001] The present invention belongs to the technical field of coke oven heating and combustion control, and in particular relates to a coke oven high-direction heating control method and device, electronic equipment, and computer-readable storage medium. Background Art

[0002] The uniformity of high-direction heating of large top-loading coke ovens is an important indicator that affects the quality of coke in coke ovens. Uneven heating distribution reduces the uniformity of the quality of coking products and the stability of the coke oven structure. Overheated silica bricks caused by long-term high temperature in a flue area may melt and eventually cause the coke oven to collapse. Generally speaking, the uniformity of high-direction heating is mainly affected by the structure of the vertical flue. These structural parameters affect the supply and distribution of air and gas, and then affect combustion. At home and abroad, the means of multi-stage heating of air and gas are currently used to change the heating level and control the uniformity of high-direction heating of large top-loading coke ovens.

[0003] The development of multi-stage heating technology for large coke ovens has been mainly based on experiments and actual production experience to determine the number and position of air and gas inlets, and to adjust the outlet size through the regulating bricks of each outlet. The engineering application range is relatively wide, but due to the complex structure of the vertical fire channel, including the influence of factors such as multi-stage heating, exhaust gas circulation, and reversing at fixed intervals, the theoretical research on vertical fire channel combustion is not in-depth enough to make a substantial change to the high-directional heating uniformity of the coke oven.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the disclosure and should not be regarded as an acknowledgement or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to solve the technical problem that the high-direction heating effect of the existing coke oven is poor, and to provide a high-direction heating control method for the coke oven.

[0006] A first aspect of the present disclosure provides a method for controlling high-directional heating of a coke oven, the method comprising: constructing a physical model of a neutral fire channel in a combustion chamber of the coke oven under different simulated operating conditions; using a mathematical model to simulate the combustion state of air and gas in each physical model; based on the combustion state, determining an index value of each physical model on high-directional heating uniformity; and determining a target operating condition based on the index values ​​of all physical models.

[0007] In one embodiment of the present disclosure, before determining the index value of each physical model in high-directional heating uniformity based on the combustion state, the method also includes: determining the first average temperature of each physical model based on the combustion state; obtaining the on-site average temperature of the coke oven under actual operating conditions; detecting whether the difference between the first average temperature and the on-site average temperature is within a difference threshold range; in response to the difference between the first average temperature and the on-site average temperature being within the difference threshold range, determining the index value of each physical model in high-directional heating uniformity based on the combustion state.

[0008] In one embodiment of the present disclosure, the above-mentioned determination of the index value of each physical model in high-directional heating uniformity based on the combustion state includes: calculating the heat flux of different areas in each physical model based on the combustion state; calculating the standard deviation value of the heat flux of each physical model based on the heat flux, and using the standard deviation value as the index value of each physical model in high-directional heating uniformity.

[0009] In one embodiment of the present disclosure, the above-mentioned indicator values ​​based on all physical models to determine the target operating condition include: subtracting the standard deviation value of each physical model in all physical models from the standard deviation value of the actual operating condition and taking the absolute value to obtain the deviation comparison value of each physical model; sorting the deviation comparison values ​​of all physical models to obtain a sorting result; based on the sorting result, obtaining the target model, and taking the simulated operating condition of the target model as the target operating condition.

[0010] In one embodiment of the present disclosure, the above-mentioned determination of the index value of each physical model in high-directional heating uniformity based on the combustion state includes: determining the high-directional temperature value of the side wall of each physical model based on the combustion state; calculating the high-directional average temperature value of each physical model based on the high-directional temperature value, and using the high-directional average temperature value as the index value of each physical model in high-directional heating uniformity.

[0011] In one embodiment of the present disclosure, the above-mentioned construction of the physical model of the vertical fire channel in the combustion chamber of the coke oven under different simulated working conditions includes: constructing a basic model of different vertical fire channels in the combustion chamber of the coke oven; based on the pre-set number and position of air and gas inlets, arranging various types of air inlets and gas inlets on the basic model to obtain the physical model of the vertical fire channel under different simulated working conditions.

[0012] In one embodiment of the present disclosure, the above-mentioned construction of the physical model of the vertical fire channel in the combustion chamber of the coke oven under different simulated working conditions includes: constructing the physical model of the vertical fire channel under actual working conditions; adjusting the air inlet and gas inlet of the physical model of the vertical fire channel under actual working conditions based on the number and positions of pre-set air and gas inlets, and obtaining the physical model of the vertical fire channel under different simulated working conditions by adjusting the state each time.

[0013] A second aspect of the present disclosure provides a coke oven high-directional heating control device, the device comprising: a construction unit, configured to construct a physical model of a neutral fire channel in a combustion chamber of the coke oven under different simulated working conditions; a simulation unit, configured to use a mathematical model to simulate the combustion state of air and gas in each physical model; a value determination unit, configured to determine the index value of each physical model on high-directional heating uniformity based on the combustion state; and an operating condition determination unit, configured to determine the target operating condition based on the index values ​​of all physical models.

[0014] In one embodiment of the present disclosure, the above-mentioned device also includes: a verification unit, which is configured to: determine the first average temperature of each physical model based on the combustion state; obtain the on-site average temperature of the coke oven under actual working conditions; detect whether the difference between the first average temperature and the on-site average temperature is within a difference threshold range; in response to the difference between the first average temperature and the on-site average temperature being within the difference threshold range, determine the index value of each physical model on high-directional heating uniformity based on the combustion state.

[0015] In one embodiment of the present disclosure, the above-mentioned value determination unit is configured to: calculate the heat flux of different areas in each physical model based on the combustion state; calculate the standard deviation value of the heat flux of each physical model based on the heat flux, and use the standard deviation value as an indicator value of the high-directional heating uniformity of each physical model.

[0016] In one embodiment of the present disclosure, the above-mentioned operating condition determination unit is configured to: subtract the standard deviation value of each physical model in all physical models from the standard deviation value of the actual operating condition and take the absolute value to obtain the deviation comparison value of each physical model; sort the deviation comparison values ​​of all physical models to obtain the sorting result; based on the sorting result, obtain the target model, and take the simulated operating condition of the target model as the target operating condition.

[0017] In one embodiment of the present disclosure, the above-mentioned value determination unit is configured to: determine the high-direction temperature value of the side wall of each physical model based on the combustion state; calculate the high-direction average temperature value of each physical model based on the high-direction temperature value, and use the high-direction average temperature value as an indicator value of the high-direction heating uniformity of each physical model.

[0018] In one embodiment of the present disclosure, the above-mentioned construction unit is configured to: construct a basic model of different vertical fire channels in the combustion chamber of the coke oven; based on the pre-set number and position of air and gas inlets, arrange various types of air inlets and gas inlets on the basic model to obtain a physical model of the vertical fire channel under different simulation conditions.

[0019] In one embodiment of the present disclosure, the above-mentioned construction unit is configured to: construct a physical model of the vertical fire channel under actual working conditions; adjust the air inlet and gas inlet of the physical model of the vertical fire channel under actual working conditions based on the pre-set number and position of the air and gas inlets, and obtain the physical model of the vertical fire channel under different simulated working conditions by adjusting the state each time.

[0020] Compared with the prior art, the technical effects achieved by the present invention are as follows: the physical structure of each vertical fire channel is determined through the physical model of the vertical fire channel under different working conditions in the combustion chamber of the coke oven; based on the mathematical model, the combustion state of the physical structure of each vertical fire channel is simulated, thereby realizing the analysis of the actual combustion situation of the vertical fire channel; based on the combustion state, the index value of the physical model on high-direction heating uniformity is determined, and the influence of different heating levels on the high-direction heating uniformity of the coke oven is quantitatively analyzed, which provides a reliable means for effectively measuring the high-direction uniformity, and determines the target working condition based on the index value of the physical model on the high-direction heating uniformity. When the coke oven adopts the vertical fire channel of the target working condition, the heating uniformity of the coke oven can be effectively guaranteed, which provides a theoretical basis for the selection of the heating level, ensures the uniformity of the high-direction heating of the coke oven, and reduces the energy consumption of the coke oven. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a flow chart of an embodiment of a coke oven high-direction heating control method according to the present disclosure;

[0022] Figure 2 It is a structural schematic diagram of a physical model in the coke oven high-direction heating control method disclosed in the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the vertical fire channel under different simulated working conditions in the high-direction heating control method of the coke oven disclosed in the present invention;

[0024] Figure 4 is a bar graph of standard deviation values ​​of a physical model according to one embodiment of the present disclosure;

[0025] Figure 5 It is a structural schematic diagram of an embodiment of a coke oven high-direction heating control device according to the present disclosure;

[0026] Figure 6 It is a block diagram of an electronic device used to implement the coke oven high-directional heating control method according to the embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0028] The technical solution of the present disclosure is described below by means of specific embodiments. It should be understood that one or more steps mentioned in the present disclosure do not exclude the existence of other methods and steps before and after the combination step, or other methods and steps may be inserted between these explicitly mentioned steps. It should also be understood that these examples are only used to illustrate the present disclosure and are not used to limit the scope of the present disclosure. Unless otherwise specified, the numbering of each method step is only for the purpose of identifying each method step, and does not limit the order of arrangement of each method or limit the scope of implementation of the present disclosure. Changes or adjustments in their relative relationships can also be regarded as the scope of implementation of the present disclosure without substantial changes in the technical content.

[0029] The sources of the raw materials and instruments used in the examples are not particularly limited and can be purchased from the market or prepared according to conventional methods known to those skilled in the art.

[0030] In the traditional technology of coke oven design, the coking process of coal in the carbonization chamber involves complex chemical changes and heat transfer processes, and the carbonization chambers on both sides of the vertical fire channel are not in a uniform coking state, and the heat transfer process from the vertical fire channel to the carbonization chambers on both sides is extremely complex. Generally, the traditional technology mainly evaluates the high-direction heating uniformity of the coke oven based on the high-direction average temperature in the vertical fire channel. However, since the carbonization chambers on both sides of the vertical fire channel are in different coking states and require different amounts of heat, the high-direction heat transfer uniformity of the carbonization chambers on both sides of the vertical fire channel cannot be accurately evaluated based on the average temperature alone.

[0031] In recent years, domestic and foreign scholars have simulated the combustion and heat transfer process of coke ovens and studied the vertical fire channel combustion process, but none of them have proposed optimization design methods for the high-direction heating structure and heating uniformity of coke ovens.

[0032] In view of the defects in the prior art, the present invention provides a method for controlling the high-directional heating of a coke oven. By constructing a physical model of a neutral fire channel in a combustion chamber of the coke oven and simulating the combustion state of the physical model, the high-directional heating uniformity of the coke oven is effectively quantified, and the vertical fire channel of the target operating condition is determined. When designing the coke oven, if the vertical fire channel of the target operating condition is adopted, the high-directional heating uniformity of the coke oven can be guaranteed, the cost of coke oven design can be saved, and the energy consumption of the coke oven can be reduced. Figure 1 A process 100 of an embodiment of a coke oven high-direction heating control method is shown. The coke oven high-direction heating control method comprises the following steps:

[0033] Step 101, constructing a physical model of a neutral fire channel in a combustion chamber of a coke oven under different simulated working conditions.

[0034] A coke oven is an industrial kiln for refining coke. It consists of three chambers and two zones, generally including: carbonization chamber, combustion chamber, heat storage chamber, ramp zone, and furnace top zone. The combustion chamber is located on both sides of the carbonization chamber, which is divided into many fire channels, where coal gas and air are mixed and burned. The heat generated is transferred to the furnace wall, indirectly heating the coal in the carbonization chamber and subjecting it to high-temperature dry distillation. There is one more combustion chamber than the carbonization chamber, and its length is equal to that of the carbonization chamber, and its taper is equal to that of the carbonization chamber but in the opposite direction, to ensure that the center distance of the coke oven carbonization chamber is equal.

[0035] In this embodiment, each combustion chamber of the coke oven has multiple vertical fire channels, for example, 18 groups (26) of vertical fire channels arranged in parallel, each group of vertical fire channels has corresponding ascending flues (or ascending airflow fire channels) and descending flues (or descending airflow fire channels). In order to effectively analyze the high-directional heating uniformity of the vertical fire channels, a representative standard vertical fire channel in the combustion chamber of the coke oven can be selected. The standard vertical fire channel is the middle vertical fire channel among the multiple vertical fire channels arranged in parallel in the combustion chamber. For example, if there are nine groups of vertical fire channels arranged in parallel in the combustion chamber, the fourth or fifth group of vertical fire channels is selected as the vertical fire channel for constructing the physical model. By constructing and analyzing different simulation conditions for the standard vertical fire channels, the determined target conditions can be made more accurate.

[0036] In this embodiment, the simulated working condition and the target working condition are: the layout structure of the air and gas inlet inlets of the vertical fire channel under the current coke pushing sequence and heating level, the simulated working condition is the layout structure of the air and gas inlet inlets under the current coke pushing sequence and heating level simulated by simulation means, and the target working condition is the layout structure of the air and gas inlet inlets that can be actually arranged selected from the simulated working condition. Among them, the coke pushing sequence: refers to the sequence of coke pushing in the carbonization chamber, usually using a 9-2 sequence, a 5-2 sequence, a 2-1 sequence and other sequence methods. These sequence methods determine the order of coal loading and coke discharge in each carbonization chamber of each coke oven. 9-2 sequence: means that after every 9 carbonization chambers are pushed, the coke pushing operation of 2 carbonization chambers is carried out. 5-2 sequence: means that after every 5 carbonization chambers are pushed, the coke pushing operation of 2 carbonization chambers is carried out. 2-1 sequence: means that after every 2 carbonization chambers are pushed, the coke pushing operation of 1 carbonization chamber is carried out.

[0037] Coke oven heating level: The height difference between the top surface of the combustion chamber and the top surface of the carbonization chamber is called the heating level.

[0038] In this embodiment, the physical model is a conceptual model established by discarding minor factors and focusing on major factors when studying and solving physics problems. A physical model can also be referred to as a model, but in this case it is usually different from a conceptual model and is a smaller or larger replica that can simulate a physical object. In this embodiment, the physical model is an actual fire channel conceptual model, such as Figure 2As shown in the figure, the conceptual model of the vertical fire channel in the physical model completely replicates the actual vertical fire channel through the physical model. Furthermore, the vertical fire channel in the combustion chamber of the coke oven can be simulated under different simulation conditions through the physical model. Figure 2 In the example, the vertical fire channel includes two flues, one ascending flue SY and one descending flue XY. The physical model uses mixed gas for heating. The air and gas have three air inlets at the bottom, middle and top, respectively. Figure 2 The lower air inlet DR, the middle air inlet ZR and the upper air inlet SR divide the vertical fire channel into three sections. Since the three-section gas outlet will make the top temperature of the carbonization chamber too high, causing a series of structural and operational problems, the vertical fire channel under the target working condition can be heated in only two sections.

[0039] In this embodiment, since the carbonization chambers on both sides of the vertical flue are in different coking states, at the same time, the heat conduction of the vertical flue to the two sides is different, and different temperature boundary conditions are set for the furnace walls on both sides.

[0040] In this embodiment, the physical model also simulates the cross-over hole KK, the exhaust gas outlet FC and the circulation window XC.

[0041] In this embodiment, Figure 3 Five simulation working conditions are given. The working condition G1 of the vertical fire channel L simulated by the physical model: the air enters the vertical fire channel at three positions at 0m, 1.6m and 3.55m respectively, and the gas enters the vertical fire channel at two positions at 0m and 1.6m respectively; working condition G2: the air enters the vertical fire channel at three positions at 0m, 1.6m and 3.55m respectively, and the gas enters the vertical fire channel at one position at 0m; working condition G3: the air enters the vertical fire channel at two positions at 0m and 1.6m respectively, and the gas enters the vertical fire channel at one position at 0m; working condition G4: the air enters the vertical fire channel at two positions at 0m and 2.6m respectively, and the gas enters the vertical fire channel at one position at 0m; working condition G5: the air enters the vertical fire channel at two positions at 0m and 2m respectively, and the gas enters the vertical fire channel at one position at 0m.

[0042] In this embodiment, the physical model may be divided into grid units to achieve conversion of effective unit size from the edge to the core of the domain.

[0043] Specifically, the above step 101 also includes: determining multiple size grids of the physical model; calculating the average temperature under multiple size grids based on the average temperature of the neutral fire channel outlet of the physical model; obtaining the target type grid according to the average temperature under the multiple size networks; using the target type network, determining the index reflecting the high-directional heating uniformity in each physical model; based on the combustion state, calculating the index value of the index, and obtaining the index value of each physical model in the high-directional heating uniformity.

[0044] After obtaining various mesh sizes, the average temperature at the exit of the vertical fire channel in the simulation results is compared. As shown in Table 1, there is a significant difference between the results of the medium mesh (1007274) and the coarse mesh (770879). However, the results obtained using the medium mesh (1007274) and the fine mesh (1249997) are almost the same. Considering the calculation amount and calculation accuracy, 1007274 units were selected for the final calculation.

[0045] Table 1

[0046] Grid quantity 770879 1007274 1249997 Vertical fire channel outlet temperature / K 1591 1573 1579

[0047] Step 102, using a mathematical model to simulate the combustion state of air and gas in each physical model.

[0048] The combustion of various components of the mixed gas needs to be considered in the vertical fire channel, which involves the interaction control between complex chemical reaction dynamics and turbulence. To this end, in this embodiment, after replicating the vertical fire channel through a physical model, a mathematical model is used to simulate the combustion state of the air and gas in the vertical fire channel.

[0049] Specifically, the mathematical model includes: a gas combustion sub-model, physical conservation laws, and a radiation heat transfer sub-model. The combustion state of air and gas in the vertical fire channel is determined by calculating using the gas combustion model, physical conservation laws (including continuity equation, momentum equation, energy equation, material conservation equation), and a radiation heat transfer model of high-temperature flue gas (such as a discrete coordinate model Discrete Ordinates).

[0050] The gas combustion submodel in the stand-alone channel is controlled by the interaction between complex chemical reaction kinetics and turbulence, and adopts the eddy dissipation concept (EDC) model. In this model, the molecular mixing between reactants associated with turbulent dissipation occurs in concentrated, isolated regions that occupy only a small part of the total volume of the fluid. It assumes that the reaction occurs in small turbulent structures called fine scales, and the combustion at the fine scale is considered to be carried out as a constant pressure reactor.

[0051] In this embodiment, the combustion state refers to the combustion and heat dissipation state of the air and gas in the vertical fire channel. The combustion state can reflect the energy conversion state and the combustion reaction state of the air and gas in the vertical fire channel.

[0052] correspond Figure 3The simulation results of the working conditions show that in working conditions G1 and G2, the high-temperature zone in the upper part of the vertical flue is relatively larger than in other cases. According to the experimental conditions, the increase in the high-temperature zone in the upper part of the heating flue can be attributed to the three-stage air intake, which increases the oxygen concentration in the upper part of the flue. In addition, the high-temperature zone in the upper part of the heating flue of working condition G2 is slightly smaller than that of working condition G1. This shows that the high-temperature zone in the upper part of the heating flue can be reduced by eliminating the air inlet. In actual coking production, the temperature in the upper part of the vertical flue is too high, which will threaten the stability of the flue structure. Therefore, working conditions G3, G4 and G5 further reduce the number of air and fuel gas inlets, and two stages can be used to supply air to the coke oven and one stage can be used to supply gas to the coke oven.

[0053] In this embodiment, the fuel gas may be one or more of H, CH4, CO, CO2, C2H4, C6H6, H2S, and COS.

[0054] Step 103: Determine the index value of each physical model on high-directional heating uniformity based on the combustion state.

[0055] In this embodiment, the high direction refers to the length direction of the vertical fire channel, the high-direction heating uniformity is the heating uniformity in the length direction of the vertical fire channel, and the index value of the high-direction heating uniformity refers to the actual value of the index that can reflect the uniform effect of the physical model in high-direction heating, wherein the index is an index that reflects the high-direction heating uniformity of the physical model (i.e., the vertical fire channel), for example, the index is the average temperature of the outlet of the vertical fire channel.

[0056] In this embodiment, the above step 103 includes: determining the index reflecting the high-directional heating uniformity in each physical model; calculating the index value of the index based on the combustion state, and obtaining the index value of each physical model in the high-directional heating uniformity. Specifically, the index can also be the average temperature of the furnace walls on both sides of the vertical flue (corresponding to the walls of different carbonization chambers), and the index value is the actual value of the average temperature. The index can also be the standard deviation of the heat flux in different areas on the heating walls on both sides of the vertical flue.

[0057] Step 104: determine the target operating condition based on the index values ​​of all physical models.

[0058] In this embodiment, the index values ​​of all physical models are compared with the index values ​​of the vertical fire channel under actual working conditions, and the simulated working condition of the physical model with the largest difference between the index value and the index value of the vertical fire channel under actual working conditions is taken as the target working condition.

[0059] The coke oven high-directional heating control method provided by the present invention first constructs a physical model of the neutral fire channel of the coke oven combustion chamber under different simulated working conditions; secondly, a mathematical model is used to simulate the combustion state of air and gas in each physical model; then, based on the combustion state, the index value of each physical model on the high-directional heating uniformity is determined; finally, based on the index values ​​of all physical models, the target working condition is determined. Therefore, the physical structure of each vertical fire channel is determined through the physical model of the vertical fire channel under different working conditions in the combustion chamber of the coke oven; based on the mathematical model, the combustion state of the physical structure of each vertical fire channel is simulated, so as to realize the analysis of the actual combustion situation of the vertical fire channel; based on the combustion state, the index value of the physical model on high-direction heating uniformity is determined, and the influence of different heating levels on the high-direction heating uniformity of the coke oven is quantitatively analyzed, which provides a reliable means to measure the high-direction uniformity, and based on the index value of the physical model on high-direction heating uniformity, the target working condition is determined. When the coke oven adopts the vertical fire channel of the target working condition, the heating uniformity of the coke oven can be effectively guaranteed, which provides a theoretical basis for the selection of the heating level, ensures the uniformity of the high-direction heating of the coke oven, and reduces the energy consumption of the coke oven.

[0060] In some embodiments of the present disclosure, before determining the index value of each physical model in terms of high-directional heating uniformity based on the combustion state, the method also includes: determining the first average temperature of each physical model based on the combustion state; obtaining the on-site average temperature of the coke oven under actual operating conditions; detecting whether the difference between the first average temperature and the on-site average temperature is within a difference threshold range; in response to the difference between the first average temperature and the on-site average temperature being within the difference threshold range, determining the index value of each physical model in terms of high-directional heating uniformity based on the combustion state.

[0061] The embodiment of the present disclosure provides a coke oven high-directional heating control method, which constructs a physical model of a neutral fire channel in a combustion chamber of a coke oven under different simulated working conditions; uses a mathematical model to simulate the combustion state of air and gas in each physical model; determines the first average temperature of each physical model based on the combustion state; obtains the on-site average temperature of the coke oven under actual working conditions; detects whether the difference between the first average temperature and the on-site average temperature is within a difference threshold range; in response to the difference between the first average temperature and the on-site average temperature being within the difference threshold range, determines the index value of each physical model on high-directional heating uniformity based on the combustion state; and determines the target working condition based on the index values ​​of all physical models.

[0062] In this embodiment, the simulation result (the first average temperature of the physical model) is compared with the on-site measurement data (the on-site average temperature) of the coke oven (the actual on-site model is the attached Figure 3 The working condition G1 in the figure verifies the reliability of the mathematical model. It can be seen from Table 2 that the numerical difference between the simulation results and the field data is less than 1%, which proves the rationality of the mathematical model.

[0063] Table 2

[0064] Data sampling location On-site measurement results / ℃ Simulation results / ℃ Relative error / % Nose brick 1327 1329 0.15 The surface of the imported silica bricks at the highest point 1311 1303 0.61 Fire exit (Tout) 1588 1597.5 0.72

[0065] The coke oven high-directional heating control method provided by the present invention determines whether the construction of the physical model is accurate based on the difference between the first average temperature of each physical model and the on-site average temperature of the coke oven under actual working conditions before determining the index value of each physical model on the high-directional heating uniformity, thereby providing a reliable means for verifying the physical model and improving the reliability of the physical model.

[0066] Optionally, in response to the difference between the first average temperature of the physical model and the on-site average temperature not being within a difference threshold range, it is determined that the construction of the physical model is inaccurate, and the physical model is reconstructed.

[0067] In some optional implementations of the present disclosure, the above-mentioned determination of the index value of each physical model in high-directional heating uniformity based on the combustion state includes: calculating the heat flux of different areas in each physical model based on the combustion state; calculating the standard deviation value of the heat flux of each physical model based on the heat flux, and using the standard deviation value as the index value of each physical model in high-directional heating uniformity.

[0068] In this optional implementation, heat flux is heat flux density, which refers to the heat energy passing through a unit area per unit time.

[0069] In this optional implementation, multiple simulation results are obtained by simulating the gas inlet positions of different furnace types of vertical flues multiple times. The heating wall is divided into multiple regions at intervals starting from the bottom of the vertical flue, and the heat flux of multiple regions along the vertical direction of the inner surface is calculated. The standard deviation of the heat flux in different regions on the heating wall on both sides of the vertical flue is calculated, and the standard deviation S is defined by the equation shown in formula (1).

[0070]

[0071] In formula (1), q i represents the heat flux on sub-region i. represents the average heat flux over all zones, where a heated wall has n sub-zones.

[0072] The simulation results show that the standard deviation of the heat flux in different areas on the heating wall on both sides of the vertical flue can be obtained when the gas inlet of the vertical flue is at different positions. Figure 4 The furnace wall Q1 and the furnace wall Q2 are the heating walls on both sides of the vertical fire channel.

[0073] In this optional implementation, the heat flux of different areas in the physical model refers to the two side walls of the furnace corresponding to different carbonization chambers in the vertical fire channel of the physical model. The function of the vertical fire channel is to burn gas and provide heat to the carbonization chambers on both sides. Since the coal is evenly distributed in the carbonization chamber, the heat absorbed from bottom to top is as uniform as possible to ensure that the coke matures at the same time, so the two heat fluxes of the two side walls of the furnace corresponding to different carbonization chambers in the vertical fire channel have an impact on the maturation of the coke.

[0074] This optional implementation provides a method for determining the index value of the physical model in high-directional heating uniformity. By taking the standard deviation value as the index value, it fully considers the influence of the coke pushing sequence and the heating level on the high-directional heating uniformity, and realizes quantitative analysis of the influence of different heating levels on the high-directional heating uniformity of the coke oven. It provides a theoretical basis for the selection of the coke oven heating level and achieves the effect of energy saving and consumption reduction.

[0075] In some optional implementations of the present disclosure, the above-mentioned determination of the target operating condition based on the indicator values ​​of all physical models includes: subtracting the standard deviation value of each physical model in all physical models from the standard deviation value of the actual operating condition and taking the absolute value to obtain the deviation comparison value of each physical model; sorting the deviation comparison values ​​of all physical models to obtain a sorting result; based on the sorting result, obtaining the target model, and taking the simulated operating condition of the target model as the target operating condition.

[0076] Depend on Figure 4 From the data, it can be seen that the standard deviation values ​​of the heat flux of the heating furnace walls one and two in condition G2 are basically the same as those of condition G1, and the quantitative value is reduced very little, and there is almost no improvement in the vertical uniformity of the heat flux. Among conditions G3, G4 and G5, condition G3 looks significantly better. On the heating furnace wall Q1, compared with condition G1, the deviation comparison values ​​of the heat flux standard deviation are: condition G3> condition G4> condition G5> condition G2. On the heating furnace wall Q2, compared with condition G1, the deviation comparison values ​​of the heat flux standard deviation are: condition G3> condition G5> condition G4> condition G2. In general, condition G3 has the best high-direction heating uniformity, and the optimization design direction of the high-direction heating uniformity of this furnace type should be close to condition G3, that is, condition G3 should be taken as the target condition.

[0077] From the simulation data, it can be seen that the number and position of gas and air inlets affect the distribution and combustion state of air and gas, resulting in different heating levels. The standard deviation of heat flux is affected by the heating level and the coking state of the carbonization chamber. Carbonization chambers in different coking states have different requirements for heating levels. The final heating level is determined by combining the standard deviation of heat flux of the heating walls on both sides.

[0078] Coke ovens of various sizes have been developed at home and abroad. The sizes of the vertical fire channel are different. The selection of the heating level is affected by many factors. Theoretical calculations and practical experience often cannot fully determine the position and size of the air and gas inlets. Once the heating level is determined and the coke oven is built, the position of the air and gas cannot be changed. The size of the air and gas inlets can only be adjusted by adjusting the bricks. Since the temperature in the vertical fire channel is as high as about 1400°C and the adjustment distance is very long, the actual adjustment is very difficult. The present invention establishes a physical model based on the vertical fire channel structure of the coke oven, and quantitatively evaluates the high-direction heating uniformity of the coke oven through simulation and evaluation standards, providing a theoretical basis for the selection of the coke oven heating level.

[0079] The method for determining the target operating condition provided by this optional implementation subtracts the standard deviation value of each physical model from the standard deviation value of the actual operating condition and takes the absolute value, which can effectively measure the difference in the standard deviation of each simulation work, and takes the simulation operating condition with the largest difference among all physical models as the target operating condition, thereby improving the reliability and accuracy of obtaining the target operating condition.

[0080] In some optional implementations of the present disclosure, the above-mentioned determination of the index value of each physical model in terms of high-directional heating uniformity based on the combustion state includes: determining the high-directional temperature value of the side wall of each physical model based on the combustion state; calculating the high-directional average temperature value of each physical model based on the high-directional temperature value, and using the high-directional average temperature value as the index value of each physical model in terms of high-directional heating uniformity.

[0081] In this optional implementation, the high temperature value of the side wall of the physical model refers to the temperature distribution value in the direction from the bottom to the top of the vertical fire channel. Specifically, the temperature value of the set height of the side wall of the physical model can be selected as the high temperature value of the side wall of the physical model. The side wall of the physical model is the side walls of the furnace walls on both sides of the vertical fire channel corresponding to different carbonization chambers established by the physical model.

[0082] In this optional implementation, after the combustion state of the physical model is determined, the temperature of each area in the physical model can be calculated using a mathematical model, and in particular, the high temperature value of the side wall of the physical model can be calculated.

[0083] The method for determining the index value of high-direction heating uniformity provided by this optional implementation method takes the average high-direction temperature as the index to measure the high-direction heating uniformity of the coke oven, takes the temperature value of the average high-direction temperature as the index value, and determines the high-direction temperature value of the side wall of each physical model based on the combustion state; based on the high-direction temperature value, calculates the high-direction average temperature value of each physical model, which provides a reliable implementation method for determining the index value of heating uniformity.

[0084] Optionally, the above-mentioned determination of the index value of each physical model in high-directional heating uniformity based on the combustion state includes: determining the sampling surface temperature and mass flow rate of each physical model based on the combustion state; calculating the mass-weighted average temperature value based on the sampling surface temperature and mass flow rate, and using the mass-weighted average temperature value as the index value of each physical model in high-directional heating uniformity.

[0085] In this embodiment, the mass-weighted average temperature is the mass-weighted average temperature of the fluid in a given area. The mass-weighted average temperature is a function of the distance from the sampling surface to the bottom of the flue. The mass-weighted average temperature takes into account the temperature and mass flow rate of the sampling surface and is positively correlated with the thermal radiation intensity. Through actual simulation, it can be seen that the mass-weighted average temperature trends of conditions G1 and G2 look very similar, and both reach the peak of combustion and radiation intensity above the highest air inlet. Conditions G3, G4 and G5 all use a two-stage air supply and a one-stage gas supply. Compared with condition G1, the mass-weighted average temperature trends of conditions G3, G4 and G5 have changed significantly, mainly manifested in the movement of the combustion and radiation intensity peaks to the middle section of the upper flue. In addition, compared with condition G1, in these cases, the combustion and radiation intensity decreases in the upper part of the flue and increases in the lower part.

[0086] In some optional implementations of the present disclosure, the above-mentioned construction of the physical model of the vertical fire channel in the combustion chamber of the coke oven under different simulated working conditions includes: constructing a basic model of different vertical fire channels in the combustion chamber of the coke oven; based on the pre-set number and positions of air and gas inlets, arranging multiple types of air inlets and gas inlets on the basic model to obtain the physical model of the vertical fire channel under different simulated working conditions.

[0087] In this optional implementation, the basic model is the basic physical structure of the vertical fire duct. The basic model does not have inlets for various gases, while the physical model is a physical vertical fire duct with inlets for various gases. By designing the inlet position of the basic model, a physical model under simulated working conditions can be obtained.

[0088] In this optional implementation, in order to add corresponding air and gas inlets to the basic model, the number and positions of the air and gas inlets can be recorded in a table in advance. The corresponding inlets can be added at the corresponding heights of the basic model based on the number and positions of the air and gas inlets in the table, thereby achieving the purpose of inlet layout of the basic model. After the air and gas inlets at corresponding heights are arranged for the basic model, the arranged model is a vertical fire channel under simulated working conditions.

[0089] In this optional implementation, the number of physical models of the vertical fire channel for different simulation conditions can be set as needed. For example, there are 5 physical models, and the layout of the air and gas inlets in the 5 physical models is completely different.

[0090] This optional implementation provides a method for constructing a physical model of a vertical fire channel under different simulation conditions. First, a basic model without an inlet is constructed. Secondly, based on the pre-set number and positions of air and gas inlets, various types of air inlets and gas inlets are arranged on the basic model to obtain a physical model of the vertical fire channel under different simulation conditions. The method is simple to operate and easy to implement, and provides a reliable implementation method for obtaining the physical model.

[0091] In some optional implementations of the present disclosure, the above-mentioned construction of the physical model of the vertical fire channel in the combustion chamber of the coke oven under different simulated working conditions includes: constructing the physical model of the vertical fire channel under actual working conditions; adjusting the air inlet and gas inlet of the physical model of the vertical fire channel under actual working conditions based on the pre-set number and position of the air and gas inlets, and obtaining the physical model of the vertical fire channel under different simulated working conditions by adjusting the state each time.

[0092] In this optional implementation, the vertical fire channel under actual working conditions refers to the standard vertical fire channel used in actual coke ovens. The standard vertical fire channel is the middle vertical fire channel among the vertical fire channels arranged in parallel in the combustion chamber. Each group of vertical fire channels in the combustion chamber has an ascending flue and a descending flue.

[0093] In this optional implementation, the vertical fire duct under actual working conditions has an air inlet and a gas inlet, and the number and positions of the pre-set air and gas inlets may be the same as or different from the number and positions of the air inlets of the vertical fire duct under actual working conditions. When the number and positions of the pre-set air and gas inlets are different from the number and positions of the air inlets of the vertical fire duct under actual working conditions, the number and positions of the inlets of the physical model of the vertical fire duct under actual working conditions can be directly adjusted in the software system for constructing the physical model to obtain the physical model of the vertical fire duct under different simulation conditions.

[0094] This optional method provides a method for constructing a physical model of a vertical fire duct under different simulated working conditions. First, a physical model of the vertical fire duct under actual working conditions is constructed. Secondly, based on the number and positions of pre-set air and gas inlets, the air inlet and gas inlet of the physical model of the vertical fire duct under actual working conditions are adjusted. By adjusting the state each time, the physical model of the vertical fire duct under different simulated working conditions is obtained. The air inlet and gas inlet are adjusted based on the actual working conditions. The operation is simple, so that the physical model obtained under the simulated working conditions is closer to the actual working conditions, and another reliable implementation method is provided for obtaining the physical model.

[0095] Further references Figure 5As an implementation of the methods shown in the above figures, the present disclosure provides an embodiment of a coke oven high-direction heating control device, which is similar to Figure 1 Corresponding to the method embodiment shown, the device can be specifically applied to various electronic devices.

[0096] like Figure 5 As shown, the coke oven high-directional heating control device 500 provided in this embodiment includes: a construction unit 501, a simulation unit 502, a value determination unit 503, and an operating condition determination unit 504. Among them, the above-mentioned construction unit 501 can be configured to construct a physical model of the neutral fire channel of the combustion chamber of the coke oven under different simulated operating conditions. The above-mentioned simulation unit 502 can be configured to use a mathematical model to simulate the combustion state of air and gas in each physical model. The above-mentioned value determination unit 503 can be configured to determine the index value of each physical model on the high-directional heating uniformity based on the combustion state. The above-mentioned operating condition determination unit 504 can be configured to determine the target operating condition based on the index values ​​of all physical models.

[0097] In this embodiment, in the coke oven high-direction heating control device 500, the specific processing of the construction unit 501, the simulation unit 502, the value determination unit 503, and the working condition determination unit 504 and the technical effects thereof can be referred to respectively. Figure 1 The relevant descriptions of step 101, step 102, step 103, and step 104 in the corresponding embodiment are not repeated here.

[0098] In one embodiment of the present disclosure, the above-mentioned device also includes: a verification unit (not shown in the figure), which is configured to: determine the first average temperature of each physical model based on the combustion state; obtain the on-site average temperature of the coke oven under actual working conditions; detect whether the difference between the first average temperature and the on-site average temperature is within a difference threshold range; in response to the difference between the first average temperature and the on-site average temperature being within the difference threshold range, determine the index value of each physical model on high-directional heating uniformity based on the combustion state.

[0099] In one embodiment of the present disclosure, the above-mentioned value determination unit 503 is configured to: calculate the heat flux of different areas in each physical model based on the combustion state; calculate the standard deviation value of the heat flux of each physical model based on the heat flux, and use the standard deviation value as an indicator value of the high-directional heating uniformity of each physical model.

[0100] In one embodiment of the present disclosure, the above-mentioned operating condition determination unit 504 is configured to: subtract the standard deviation value of each physical model in all physical models from the standard deviation value of the actual operating condition and take the absolute value to obtain the deviation comparison value of each physical model; sort the deviation comparison values ​​of all physical models to obtain the sorting result; based on the sorting result, obtain the target model, and take the simulated operating condition of the target model as the target operating condition.

[0101] In one embodiment of the present disclosure, the above-mentioned value determination unit 503 is configured to: determine the high-direction temperature value of the side wall of each physical model based on the combustion state; calculate the high-direction average temperature value of each physical model based on the high-direction temperature value, and use the high-direction average temperature value as an indicator value of the high-direction heating uniformity of each physical model.

[0102] In one embodiment of the present disclosure, the above-mentioned construction unit 501 is configured to: construct a basic model of different vertical fire channels in the combustion chamber of the coke oven; based on the pre-set number and position of air and gas inlets, arrange various types of air inlets and gas inlets on the basic model to obtain a physical model of the vertical fire channel under different simulation conditions.

[0103] In one embodiment of the present disclosure, the above-mentioned construction unit 501 is configured to: construct a physical model of the vertical fire channel under actual working conditions; adjust the air inlet and gas inlet of the physical model of the vertical fire channel under actual working conditions based on the pre-set number and position of the air and gas inlets, and obtain the physical model of the vertical fire channel under different simulation conditions by adjusting the state each time.

[0104] In the coke oven high-direction heating control device provided in the embodiment of the present disclosure, first, the control unit 501 controls the application to run in the real-time application self-protection environment; secondly, the acquisition unit 502 acquires the structured query statement of the application accessing the database in the relevant interface class of the application connecting to the database; thirdly, the acquisition unit 503 acquires the token list based on the structured query statement; then, the detection unit 504 detects the structured query statement and obtains the detection result of the structured query statement; finally, the processing unit 505 processes the structured query statement based on the detection result. Thus, by acquiring the structured query statement through the relevant interface class, the real-time processing effect of the structured query statement can be achieved; based on the token list and the structured query statement, the automatic detection of the structured query statement injection is realized, the database security and database management efficiency are improved, and the operation and maintenance cost is reduced.

[0105] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program product.

[0106] Figure 6A schematic block diagram of an example electronic device 600 that can be used to implement an embodiment of the present disclosure is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their modes are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0107] like Figure 6 As shown, the device 600 includes a computing unit 601, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 602 or a computer program loaded from a storage unit 608 into a random access memory (RAM) 603. In the RAM 603, various programs and data required for the operation of the device 600 can also be stored. The computing unit 601, the ROM 602, and the RAM 603 are connected to each other via a bus 604. An input / output (I / O) interface 605 is also connected to the bus 604.

[0108] A number of components in the device 600 are connected to the I / O interface 605, including: an input unit 606, such as a keyboard, a mouse, etc.; an output unit 607, such as various types of displays, speakers, etc.; a storage unit 608, such as a disk, an optical disk, etc.; and a communication unit 609, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 609 allows the device 600 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0109] The computing unit 601 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 601 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The computing unit 601 performs the various methods and processes described above, such as a coke oven high-to-direction heating control method. For example, in some embodiments, the coke oven high-to-direction heating control method may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit 608. In some embodiments, part or all of the computer program may be loaded and / or installed on the device 600 via the ROM 602 and / or the communication unit 609. When the computer program is loaded into the RAM 603 and executed by the computing unit 601, one or more steps of the coke oven high-to-direction heating control method described above may be performed. Alternatively, in other embodiments, the computing unit 601 may be configured to execute the coke oven high-directional heating control method in any other appropriate manner (for example, by means of firmware).

[0110] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0111] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable coke oven high-directional heating control device, so that when the program code is executed by the processor or controller, the mode / operation specified in the flow chart and / or block diagram is implemented. The program code may be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0112] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0113] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0114] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0115] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0116] The foregoing description of specific exemplary embodiments of the present disclosure is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present disclosure to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present disclosure and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present disclosure and various different selections and changes. The scope of the present disclosure is intended to be defined by the claims and their equivalents.

Claims

1. A coke oven high-direction heating control method, characterized in that: The method comprises: Construct the physical model of the neutral fire channel of the coke oven combustion chamber under different simulated working conditions; Use mathematical models to simulate the combustion state of air and gas in various physical models; Based on the combustion state, determining the index value of each physical model on the high-directional heating uniformity; Based on the index values ​​of all physical models, the target operating conditions are determined.

2. The method according to claim 1, characterized in that: Before determining the index values ​​of each physical model on high-directional heating uniformity based on the combustion state, the method further includes: Based on the combustion state, determining a first average temperature of each physical model; Obtain the on-site average temperature of the coke oven under actual working conditions; Detecting whether a difference between the first average temperature and the on-site average temperature is within a difference threshold range; In response to a difference between the first average temperature and the on-site average temperature being within a difference threshold range, an index value of each physical model on high-directional heating uniformity is determined based on the combustion state.

3. The method according to claim 1 or 2, characterized in that: Determining the index value of each physical model on the high-directional heating uniformity based on the combustion state includes: Based on the combustion state, calculating the heat flux of different regions in each physical model; Based on the heat flux, the standard deviation value of the heat flux of each physical model is calculated, and the standard deviation value is used as an index value of the high-directional heating uniformity of each physical model.

4. The method according to claim 3, characterized in that The target operating condition is determined based on the index values ​​of all physical models, including: Subtracting the standard deviation value of each physical model in all physical models from the standard deviation value of the actual working condition and taking the absolute value to obtain the deviation comparison value of each physical model; Sorting the deviation comparison values ​​of all physical models to obtain a sorting result; Based on the sorting results, a target model is obtained, and the simulated working condition of the target model is used as the target working condition.

5. The method according to claim 1 or 2, characterized in that: Determining the index value of each physical model on the high-directional heating uniformity based on the combustion state includes: Based on the combustion state, determining the high temperature value of the side wall of each physical model; Based on the high-direction temperature value, the high-direction average temperature value of each physical model is calculated, and the high-direction average temperature value is used as an index value of the high-direction heating uniformity of each physical model.

6. The method according to claim 1 or 2, characterized in that: The physical model of the neutral fire channel of the combustion chamber of the coke oven under different simulated working conditions is constructed as follows: Construct the basic model of different vertical fire channels in the combustion chamber of the coke oven; Based on the number and positions of the preset air and gas inlets, various types of air inlets and gas inlets are arranged on the basic model to obtain the physical model of the vertical fire channel under different simulation conditions.

7. The method according to claim 1 or 2, characterized in that: The physical model of the neutral fire channel of the combustion chamber of the coke oven under different simulated working conditions is constructed as follows: Construct a physical model of the vertical fire channel under actual working conditions; Based on the number and positions of the preset air and gas inlets, the air inlet and gas inlet of the physical model of the vertical fire channel under the actual working conditions are adjusted, and the physical model of the vertical fire channel under different simulation conditions is obtained by adjusting the state each time.

8. A coke oven high-direction heating control device, characterized in that: The device comprises: A construction unit is configured to construct a physical model of a neutral fire channel of a combustion chamber of a coke oven under different simulated working conditions; The simulation unit is configured to use a mathematical model to simulate the combustion state of air and gas in each physical model; a value determination unit configured to determine the index value of each physical model on the high-directional heating uniformity based on the combustion state; The operating condition determination unit is configured to determine the target operating condition based on the index values ​​of all physical models.

9. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to enable the computer to execute the method according to any one of claims 1 to 7.

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