Blast furnace charge tank charging method

Abstract

The invention relates to the technical field of blast furnace smelting, and particularly discloses a blast furnace charge can charging method which comprises the following steps: analyzing the furnace top gas temperature and the charge descending speed of a blast furnace, analyzing the balance state of the gas temperature relative value and the descending speed relative value, and calculating to obtain a coal heat balance value; analyzing and judging the adjustment conditions of the charging speed and the coke load; on the basis of the obtained coal heat balance value, calculating and analyzing the specific adjustment process of the charging speed and the coke load; based on the obtained coal heat balance value, performing comprehensive analysis on an abnormal temperature gradient obtained from a temperature gradient change curve in the furnace, and performing optimization adjustment on the charging speed and the coke load; and based on the optimized charging speed and coke load, the blast furnace molten iron temperature is analyzed, an optimized compensation speed and an optimized compensation load are obtained through calculation, and the charging speed and the coke load are subjected to optimized compensation adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field of blast furnace smelting, and particularly relates to a charging method for a blast furnace burden bin. Background Art

[0002] In the prior art, in the traditional blast furnace ironmaking process, the monitoring of key parameters is often limited to a few indicators, only focusing on the single-parameter changes of the top gas temperature or the burden descent speed, lacking the comprehensive consideration of the correlation between multiple parameters; the parameter monitoring frequency cannot meet the requirements of the real-time dynamic changes of the blast furnace; the reactions in the blast furnace are complex and dynamic processes, and parameters such as temperature and speed are changing all the time. The inability to capture parameter changes in real time will lead to a lag in the response to furnace condition changes; the existing blast furnace charging and coke load adjustment technologies are often designed for specific blast furnaces or a certain type of blast furnace, lacking good universality for blast furnaces with different processes, furnace types, and raw material conditions. The existing technology cannot quickly adjust parameters to adapt to new blast furnace conditions, restricting the application effect on different blast furnaces; during the blast furnace production process, complex working condition changes such as raw material quality fluctuations and production task changes will be encountered. The existing technology lacks sufficient flexibility and adaptability in dealing with these complex changes, unable to timely adjust the charging and coke load to ensure the efficient and stable operation of the blast furnace, and unable to better cope with complex working condition changes through multi-parameter comprehensive analysis and flexible parameter adjustment mechanisms; therefore, there is a need to provide an efficient and stable charging method for a blast furnace burden bin. Summary of the Invention

[0003] The purpose of the present invention is to provide a charging method for a blast furnace burden bin. To solve the above-mentioned prior art problems, the present invention is achieved through the following technical solutions: In the first aspect, a charging method for a blast furnace burden bin provided by an embodiment of the present invention specifically includes the following steps: Analyze the top gas temperature and the burden descent speed of the blast furnace, analyze the equilibrium state of the relative value of the gas temperature and the relative value of the descent speed, calculate the coal heat equilibrium value, and analyze and judge the adjustment of the charging speed and the coke load; Based on the obtained coal heat equilibrium value, calculate and analyze the specific adjustment process of the charging speed and the coke load; Based on the comprehensive analysis of the abnormal temperature gradient obtained from the temperature gradient change curve in the furnace, optimize and adjust the charging speed and the coke load; Based on the optimized charging speed and coke load, analyze the molten iron temperature of the blast furnace, calculate the optimized compensation speed and the optimized compensation load, and perform optimized compensation adjustment on the charging speed and the coke load.

[0004] In the second aspect, a charging system for a blast furnace burden bin provided by an embodiment of the present invention specifically includes the following modules: Data collection module: Obtain relevant parameters of blast furnace charging, including but not limited to: top gas temperature, burden descent rate, volume percentage of hydrogen in top gas, temperature gradient value, and hot metal temperature; Data analysis module: Analyze relevant parameters of blast furnace charging, judge the adjustment of charging speed and coke burden, and calculate and analyze the specific adjustment process of charging speed and coke burden; Charging adjustment module: Conduct the specific adjustment process of charging speed and coke burden, optimize the adjustment of charging speed and coke load, and optimize and compensate the adjustment of charging speed and coke burden; Charging optimization analysis module: Comprehensively analyze the abnormal temperature gradient obtained from the temperature gradient change curve in the furnace. Based on the optimized charging speed and coke burden, analyze the hot metal temperature of the blast furnace, and calculate the optimized compensation speed and optimized compensation burden.

[0005] Advantages of the present invention: 1. By monitoring and analyzing multiple parameters such as top gas temperature, burden descent rate, and gas utilization rate, calculate the coal heat balance value, and accordingly adjust the charging speed and coke burden to achieve precise control of the blast furnace ironmaking process. Judge whether the heat energy of the top gas is excessive or insufficient according to the coal heat balance value, and then reasonably adjust the charging speed and coke burden, which helps to make full use of the gas heat energy, avoid waste caused by excessive heat or affect the reaction due to insufficient heat, and set the adjustment amplitude value to avoid excessive adjustment of the charging speed and coke burden, which helps to ensure the stability of blast furnace operation, optimize the charging speed and coke burden, improve the gas utilization rate, and make the fuel more fully utilized; 2. By combining the coal heat balance value with the analysis of abnormal temperature gradients in the temperature gradient change curve in the furnace, judge the adjustment direction and amplitude of the charging speed and coke burden; Based on the abnormal gradient number and the analysis of the abnormal gradient number, adjust the charging speed and coke burden, which helps to make full use of the gas heat energy; Perform secondary compensation adjustment on the charging speed and coke burden according to the hot metal temperature deviation value. Based on the feedback mechanism of the final product temperature, through multi-parameter comprehensive analysis and flexible parameter adjustment mechanism, better cope with complex working condition changes, further improve the charging system of the blast furnace, and meet the actual production needs of the blast furnace. Description of the drawings

[0006] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0007] Figure 1 It is the flowchart provided in Embodiment 1 of the present invention; Figure 2 It is a schematic diagram of the system structure provided in Embodiment 3 of the present invention. Detailed implementation manners

[0008] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0009] As Figure 1 shown, a charging method for a blast furnace burdening bucket provided by an embodiment of the present invention specifically includes the following steps: Step 1: Analyze the top gas temperature and the burden descent rate of the blast furnace, analyze the equilibrium state of the relative value of the gas temperature and the relative value of the descent rate, calculate the coal heat equilibrium value, and analyze and judge the adjustment of the charging speed and the coke load; In some embodiments, the top gas temperature of the blast furnace is obtained through a temperature sensor, and the descent height of the burden per unit time is obtained through an ultrasonic level gauge, and the burden descent rate is calculated; It should be noted that the top gas temperature is an important indicator in the process of blast furnace ironmaking, reflecting the thermal state in the furnace and the degree of reaction progress. Under normal production conditions, the top gas temperature remains within a relatively stable range, which may vary for different blast furnaces due to production processes and furnace type factors. If the top gas temperature is too high, it indicates that there is excessive heat in the furnace, high fuel ratio, poor burden permeability resulting in incomplete combustion; if the top gas temperature is too low, it indicates insufficient heat in the furnace, that is, insufficient fuel supply, and the burden descends too fast, affecting the heating and reduction reactions of the burden; Based on the obtained top gas temperature, the top gas temperature is ratio-processed with a preset gas temperature threshold to obtain the relative value of the gas temperature ; Based on the calculated burden descent rate, the burden descent rate is ratio-processed with a descent rate threshold to obtain the relative value of the descent rate ; Analyze the mole fractions of carbon monoxide and carbon dioxide in the top gas, calculate the proportion of the mole fraction of carbon monoxide in the total mole fractions of carbon monoxide and carbon dioxide to obtain the gas utilization rate ; It should be noted that in the process of blast furnace ironmaking, carbon monoxide is the main reducing agent. After reacting with iron oxides in the ore, it will generate carbon dioxide. By calculating the proportion of the amount of carbon monoxide that has reacted to form carbon dioxide in the total amount of carbon monoxide and carbon dioxide in the gas, the utilization degree of the gas is reflected. The higher the carbon dioxide proportion, the more carbon monoxide in the gas is converted, and the higher the gas utilization rate; Based on the obtained relative value of the gas temperature , the relative value of the descending speed and the gas utilization rate , through the formula the coal heat balance value MR is calculated. Among them, is the preset correlation coefficient, The value of ; Based on the obtained coal heat balance value MR, it is compared with the preset coal heat balance threshold value to analyze and judge whether the charging speed and coke load need to be adjusted; Specifically, if the coal heat balance value MR is greater than or equal to the preset coal heat balance threshold value , when is greater than 1, it indicates that the heat energy of the top gas is excessive, the charging speed is too slow, resulting in too fast a descending speed of the burden in the furnace, and the heat energy of the gas is not fully utilized. The charging speed is increased and the coke load is increased. When is less than or equal to 1, it indicates that the heat energy of the top gas is excessive, the charging speed is too slow, and the coke load is too small, resulting in too fast a descending speed of the burden in the furnace, and the heat energy of the gas is not fully utilized. The charging speed is increased and the coke load is reduced; If the coal heat balance value MR is greater than the preset coal heat balance threshold value and the coal heat balance value MR is less than the preset coal heat balance threshold value , it indicates that the gas temperature and the descending speed of the burden are within the expected range; If the coal heat balance value MR is less than or equal to the preset coal heat balance threshold value , when is less than 1, it indicates that the charging speed is too fast, and the preheating and reduction processes of the burden in the furnace are insufficient, resulting in too slow a descending speed of the burden in the furnace. The charging speed is reduced and the coke load is reduced. When is greater than or equal to 1, it indicates that the charging speed is too fast, the coke load is too small, too much coke burns to generate a large amount of heat, the burden fully absorbs the heat for preheating and reduction reactions, and during the upward movement of the gas, a large amount of heat is absorbed by the burden, resulting in a decrease in the top gas temperature and too fast a descending speed of the burden in the furnace. The charging speed is reduced and the coke load is increased; Step 2: Based on the obtained coal heat balance value, calculate and analyze the specific adjustment process of the charging speed and coke load; Based on the obtained coal heat balance value, adjust the charging speed, through the formula to obtain the adjusted charging speed , where represents the original charging speed preset for the blast furnace, is the charging speed to be adjusted and where represents the preset charging speed adjustment coefficient, with a value of 0.101, represents the adjustment threshold of the coal heat balance value, with a value of 1, represents the preset adjustment amplitude value, with a value of 0.18. Setting the adjustment amplitude value can avoid excessive adjustment of the charging speed and ensure the stability of the blast furnace; It should be noted that , and are all adjustment values preset by the professional technical personnel of the present invention according to historical experience and can be adjusted according to actual situations; Based on the obtained coal heat balance value, obtain the volume percentage of hydrogen in the top gas of the blast furnace , adjust the coke burden, through the formula to obtain the adjusted coke burden , where represents the original coke burden preset for the blast furnace, is the coke burden to be adjusted and is obtained through the formula , where represents the preset coke burden adjustment coefficient, with a value of 0.3, represents the adjustment threshold of the coal heat balance value, with a value of 1, represents the hydrogen injection correction coefficient, represents the preset adjustment amplitude value, with a value of 0.45. Setting the adjustment amplitude value can avoid excessive adjustment of the coke burden and ensure the stability of the blast furnace; It should be noted that , , and are all adjustment values preset by the professional technical personnel of the present invention according to historical experience and can be adjusted according to actual situations; The technical solution of the embodiment of the present invention is as follows: By monitoring and analyzing multiple parameters such as the temperature of the top gas of the blast furnace, the descending speed of the burden, and the gas utilization rate, calculate the coal heat balance value, and accordingly adjust the charging speed and coke load to achieve precise control of the blast furnace ironmaking process. Judge whether the heat energy of the top gas of the blast furnace is excessive or insufficient according to the coal heat balance value, and then reasonably adjust the charging speed and coke load, which helps to make full use of the gas heat energy, avoid waste caused by excessive heat or affect the reaction due to insufficient heat. Set the adjustment amplitude value to avoid excessive adjustment of the charging speed and coke load, which helps to ensure the stability of the blast furnace operation, optimize the charging speed and coke load, improve the gas utilization rate, and make the fuel more fully utilized. Embodiment 2

[0010] A charging method for a blast furnace burden bin provided by an embodiment of the present invention specifically includes the following steps: Step 3: Based on the obtained coal heat balance value, comprehensively analyze the abnormal temperature gradients obtained from the temperature gradient change curve in the furnace, and optimize and adjust the charging speed and coke load; In some specific embodiments, measurement points are set at a unit height in the direction perpendicular to the horizontal plane through a temperature sensor, and the temperature difference between adjacent positions in the furnace at the adjacent unit heights of the blast furnace is processed to obtain the adjacent temperature difference; Based on the obtained adjacent temperature difference and the unit height, the adjacent temperature gradient is obtained by taking the ratio. The ratio of each layer of adjacent temperature gradients to the preset standard temperature gradient is processed to obtain the temperature gradient value ; Arrange the temperature gradient values of each layer in height order, establish a plane rectangular coordinate system with the blast furnace height as the X-axis and the furnace internal temperature as the Y-axis, connect the temperature gradient values according to the blast furnace height to generate a temperature gradient change curve, and mark the temperature gradient values on the corresponding temperature gradients; Analyze the obtained temperature gradient value and the preset temperature gradient threshold to judge and mark the abnormal temperature gradient; Specifically, if the temperature gradient value is greater than or equal to times the temperature gradient threshold , it indicates that the corresponding intracranial temperature gradient is abnormal and is marked as an abnormal temperature gradient, where represents the preset abnormal amplitude coefficient; If the temperature gradient value is less than times the temperature gradient threshold and the temperature gradient value is greater than times the temperature gradient threshold , it indicates that the corresponding intracranial temperature gradient is normal; The temperature gradient value is less than times the temperature gradient threshold It indicates that the corresponding intracranial temperature gradient is abnormal and is marked as an abnormal temperature gradient; Statistically sum up the number of obtained abnormal temperature gradients to obtain the number of abnormal gradients n; Based on the temperature gradient value and the number of abnormal gradients, optimize and correct the charging speed. Through the formula Obtain the optimized charging speed after optimization and correction , where represents a preset gradient correction coefficient with a value of 0.08, represents the original charging speed preset for the blast furnace, is the charging speed that needs to be optimized and corrected and is obtained through the formula , where represents a preset charging speed adjustment coefficient with a value of 0.101, represents the adjustment threshold of the coal heat balance value with a value of 1, represents a preset adjustment amplitude value with a value of 0.18; Based on the temperature gradient value and the number of abnormal gradients, optimize and correct the coke burden. Through the formula Obtain the optimized coke burden after optimization and correction , where represents a preset burden correction coefficient with a value of 0.12, represents the original coke burden preset for the blast furnace, is the coke burden that needs to be optimized and corrected and is obtained through the formula , where represents a preset coke burden adjustment coefficient with a value of 0.3, represents the adjustment threshold of the coal heat balance value with a value of 1, represents the hydrogen injection correction coefficient, represents a preset adjustment amplitude value with a value of 0.45; It should be noted that the preset parameters in the formula are set by those skilled in the art according to the actual situation and historical experience and can be adjusted according to the actual situation; Step Four: Based on the optimized charging speed and coke burden, analyze the molten iron temperature of the blast furnace, and calculate the optimized compensation speed and optimized compensation burden; In some specific embodiments, an immersion thermocouple is installed in the iron runner in front of the furnace to obtain the molten iron temperature in real time; Calculate the difference between the obtained molten iron temperature and the preset target temperature to obtain the molten iron temperature deviation, and calculate the ratio of the obtained temperature deviation to the target temperature to obtain the temperature deviation value WP; Based on the obtained temperature deviation value, compensate the charging speed, and through the formula obtain the optimized compensation speed , where and both represent preset proportionality coefficients, represents the abnormal gradient number, represents the total number of temperature gradient layers in the blast furnace; Based on the obtained temperature deviation value, compensate the charging speed, and through the formula obtain the optimized compensation compliance , where , and both represent preset proportionality coefficients; It should be noted that the preset parameters in the formula are set by those skilled in the art according to the actual situation and historical experience, and can be adjusted according to the actual situation; Based on the obtained optimized compensation speed and optimized compensation load, optimize and compensate the charging speed and coke load to ensure the stability of the blast furnace; The technical solution of the embodiment of the present invention is: by combining the coal heat balance value with the analysis of abnormal temperature gradients in the in-furnace temperature gradient change curve, judge the adjustment direction and amplitude of the charging speed and coke load; based on the abnormal gradient number and the analysis of the abnormal gradient number, adjust the charging speed and coke load, which helps to make full use of the gas heat energy; perform secondary compensation adjustment on the charging speed and coke load according to the molten iron temperature deviation value, and based on the feedback mechanism of the final product temperature, through multi-parameter comprehensive analysis and flexible parameter adjustment mechanism, better cope with complex working condition changes, further improve the charging system of the blast furnace, and meet the actual production needs of the blast furnace; Embodiment 3

[0011] As Figure 2 shown, a blast furnace bunker charging system provided by an embodiment of the present invention specifically includes the following modules: Data collection module: Obtain relevant parameters of blast furnace charging, including but not limited to: top gas temperature, burden descent speed, volume ratio of hydrogen in top gas, temperature gradient value, and molten iron temperature; Data analysis module: Analyze relevant parameters of blast furnace charging, judge the adjustment of charging speed and coke load, and calculate and analyze the specific adjustment process of charging speed and coke load; Charging adjustment module: Perform a specific adjustment process on the charging speed and coke load, optimize and adjust the charging speed and coke load, and optimize and compensate the charging speed and coke load; Charging optimization analysis module: comprehensively analyze the abnormal temperature gradients obtained from the temperature gradient change curve in the furnace, analyze the hot metal temperature in the blast furnace based on the optimized charging speed and coke load, and calculate the optimized compensation speed and optimized compensation load.

[0012] The above has described an embodiment of the present invention in detail, but the content described is only the preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention; the above formulas are all dimensionless and take their numerical calculations. The formulas are obtained by collecting a large amount of data for software simulation to obtain a formula closest to the actual situation. The preset parameters in the formulas are set by those skilled in the art according to the actual situation and historical experience and can be adjusted according to the actual situation; all equivalent changes and improvements made according to the scope of the present invention application should still fall within the scope covered by the patent of the present invention.

Claims

1. A charging method for a blast furnace burden bin, characterized in that, It includes the following steps: Analyze the top gas temperature and the burden descent rate of the blast furnace, analyze the equilibrium state of the relative gas temperature and the relative descent rate, calculate the coal heat equilibrium value, and analyze and judge the adjustment of the charging speed and the coke burden; Based on the obtained coal heat equilibrium value, calculate and adjust the charging speed and analyze the specific adjustment process of the coke burden to analyze the charging speed and the coke burden; Based on the obtained abnormal temperature gradient, conduct a comprehensive analysis, calculate and optimize the charging speed and the coke burden, and optimize and adjust the charging speed and the coke load; Based on the optimized charging speed and coke burden, analyze the hot metal temperature of the blast furnace, calculate the optimized compensation speed and the optimized compensation load, and optimize and compensate the adjustment of the charging speed and the coke burden.

2. The charging method of a blast furnace burden bin according to claim 1, characterized in that, The method for obtaining the coal heat equilibrium value is: Based on the obtained relative value R of the gas temperature MQ , relative value R of the descending speed JS and gas utilization rate η MQ , through the formula calculate the coal heat balance value MR, where α is a preset correlation coefficient, and the value of α is α = 0.

42.

3. The charging method of a blast furnace burden bin according to claim 2, characterized in that The method for obtaining the relative gas temperature and the relative descent rate is: Obtain the temperature of the top gas of the blast furnace and the height of the burden descent per unit time, and calculate the burden descent rate; The gas temperature of the top gas is ratio-processed with a preset gas temperature threshold value to obtain a relative gas temperature value R MQ ; The ratio of the burden lowering speed to the lowering speed threshold is processed to obtain the relative lowering speed value R JS ; Calculate the proportion of the mole fraction of carbon monoxide in the total mole fraction of carbon monoxide and carbon dioxide to obtain the gas utilization rate η MQ .

4. A method for charging a blast furnace burden bin, according to claim 1, characterized in that, The analysis and judgment process of the coal heat equilibrium value is: Based on the obtained coal heat equilibrium value MR, compare it with the preset coal heat equilibrium threshold, and analyze and judge whether the charging speed and the coke burden need to be adjusted.

5. A charging method for a blast furnace burden bin, according to claim 1, characterized in that, The method for obtaining the adjusted charging speed is: Based on the obtained coal heat balance value, adjust the charging speed. Through the formula obtain the adjusted charging speed v 调 , where v0 represents the original charging speed preset for the blast furnace, v1 is the charging speed to be adjusted, and where β1 represents the preset charging speed adjustment coefficient, with a value of 0.101, ω1 represents the adjustment threshold of the coal heat balance value, with a value of 1, and θ1 represents the preset adjustment amplitude value, with a value of 0.

18.

6. A charging method for a blast furnace burden bin, according to claim 1, characterized in that The method for obtaining the adjusted coke burden is: Based on the obtained coal heat equilibrium value, obtain the volume fraction of hydrogen in the top gas Adjust the coke burden through the formula Obtain the adjusted coke burden K c / o , where K0 represents the original coke burden preset in the blast furnace, K1 is the coke burden to be adjusted and K1 is obtained through the formula Obtained, where β2 represents the preset coke burden adjustment coefficient, with a value of 0.3, ω2 represents the adjustment threshold of the coal heat equilibrium value, with a value of 1, Represents the hydrogen injection correction coefficient, and θ2 represents the preset adjustment amplitude value, with a value of 0.

45.

7. A method for charging a blast furnace burden bin according to claim 1, characterized in that, The method for obtaining the abnormal temperature gradient is: Perform a difference operation on the temperatures in the blast furnace at adjacent unit heights to obtain the adjacent temperature difference; Ratio processing is performed on the adjacent temperature gradients of each layer and a preset standard temperature gradient to obtain a temperature gradient value G i ; Connect the temperature gradient values according to the height of the blast furnace to generate a temperature gradient change curve, and mark the temperature gradient values on the corresponding temperature gradients; Analyze the obtained temperature gradient values with the preset temperature gradient threshold G0, judge and mark the abnormal temperature gradient.

8. A method for charging a blast furnace burden bin, according to claim 1, characterized in that, The method for obtaining the optimized charging speed is: Count and sum the number of abnormal temperature gradients obtained to obtain the number of abnormal gradients n; Based on the temperature gradient value and the abnormal gradient number, optimize and correct the charging speed, through the formula Obtain the optimized charging speed v after optimization and correction 优 , where m represents a preset gradient correction coefficient with a value of 0.08, v0 represents the original charging speed preset for the blast furnace, v2 is the charging speed that needs to be optimized and corrected and is obtained through the formula Obtained, where β1 represents a preset charging speed adjustment coefficient with a value of 0.101, ω1 represents the adjustment threshold of the coal heat balance value with a value of 1, and θ1 represents a preset adjustment amplitude value with a value of 0.

18.

9. A charging method for a blast furnace burden bin, characterized in that, according to claim 1, The method for obtaining the optimized coke burden is: Based on the temperature gradient value and the abnormal gradient number, the coke load is optimized and corrected through the formula to obtain the optimized coke load K after optimization and correction 优 , where d represents a preset load correction coefficient with a value of 0.12, K0 represents the original coke load preset for the blast furnace, K2 is the coke load that needs to be optimized and corrected, and K2 is obtained through the formula Obtained, where β2 represents a preset coke load adjustment coefficient with a value of 0.3, and ω2 represents an adjustment threshold for the coal heat balance value with a value of 1. It represents a hydrogen injection correction coefficient, and θ2 represents a preset adjustment amplitude value with a value of 0.

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10. A charging method for a blast furnace burden bin, according to claim 1, characterized in that The specific process of the optimized compensation adjustment is: Calculate the difference between the obtained hot metal temperature and the preset target temperature to obtain the hot metal temperature deviation, and calculate the ratio of the obtained temperature deviation to the target temperature to obtain the temperature deviation value WP; Based on the obtained temperature deviation value, compensate the charging speed through the formula to obtain the optimized compensation speed v 补 , where both g1 and g2 represent preset proportionality coefficients, n represents the abnormal gradient number, and N 总 represents the total number of temperature gradient layers in the blast furnace hearth; Based on the obtained temperature deviation value, compensate the loading speed, and obtain the optimized compensation compliance K through the formula where λ1, λ2, and λ3 all represent preset proportionality coefficients; 补 ​ Based on the obtained optimized compensation speed and the optimized compensation load, optimize and compensate the adjustment of the charging speed and the coke burden.

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