A blast furnace production control method, system, electronic device and storage medium for stabilizing the carbon cycle

Abstract

The present application relates to a production control method, system, electronic device and storage medium for a stable carbon cycle blast furnace, including obtaining the types of circulating gas, the real-time quantity of circulating gas, the real-time content of each component in the circulating gas, and the real-time average specific heat capacity of the circulating gas in the blast furnace production, determining an adjustment strategy according to the real-time quantity of circulating gas, the real-time content of each component in the circulating gas and the type of circulating gas, adjusting the blast furnace production conditions according to the adjustment strategy, and carrying out production according to the adjusted blast furnace production conditions, obtaining the real-time output, real-time production index, replacement ratio of circulating gas, heat data and the gas volume formed by the combustion of fuel in front of the tuyere during production according to the adjusted blast furnace production conditions, determining the operating state based on the heat data, the gas volume formed by the combustion of fuel in front of the tuyere, the replacement ratio and the real-time production index, and if the operating state is unstable, repeating the adjustment according to the adjustment strategy and repeating the determination of the operating state until the operating state is stable.

Description

Technical Field

[0001] The present application relates to the technical field of blast furnace production, and particularly to a production control method, system, electronic device and storage medium for a stable carbon cycle blast furnace. Background Art

[0002] A blast furnace is a high-temperature, countercurrent, airtight reaction vessel. During blast furnace production, iron ore, coke, and flux for slag formation (usually limestone) are charged from the top of the furnace, and preheated air is blown in through tuyeres located along the furnace circumference at the lower part of the blast furnace. At high temperatures, carbon in fuels (such as coke, pulverized coal, heavy oil, natural gas, etc.) reacts with oxygen in the air entering the blast furnace to generate carbon monoxide and hydrogen. These gases react with iron ore during their upward movement in the furnace, thereby reducing pig iron and by-products such as blast furnace slag and blast furnace gas. The molten iron produced is discharged from the taphole. The unreduced impurities in the iron ore combine with fluxes such as limestone to form slag, which is discharged from the taphole, and the generated gas is discharged from the top of the furnace. After dust removal, it is used as fuel for hot blast stoves, heating furnaces, coke ovens, boilers, etc.

[0003] The stable and smooth operation of a blast furnace is the basic condition for the efficient and low-consumption operation of a blast furnace. Traditional blast furnaces stabilize the blast furnace condition by stabilizing the quality of raw fuels and the blast supply system. The factors affecting the stable and smooth operation of a blast furnace, such as the quality of raw fuels and the stable blast supply system, have relatively small fluctuations and are relatively easy to control. However, the blast furnace condition of a carbon cycle blast furnace has added an unstable factor of blown gas. Compared with the blast furnace condition of a traditional blast furnace, the risk of blast furnace condition fluctuations increases. Moreover, compared with other fluctuation factors such as fluctuations in raw fuel conditions, the volatility of blown gas is relatively large. Since it is a secondary energy source, the fluctuation frequency and range of its composition and generation amount are larger, and it is more difficult to control. Blowing gas with large fluctuations into the blast furnace will cause the blast furnace condition of the carbon cycle blast furnace to be difficult to stably and smoothly operate, and then it is impossible to achieve a good effect of using gas to replace solid fuels in the blast furnace, and finally the decarbonization effect of the smelting of the carbon cycle blast furnace condition is not ideal. Summary of the Invention

[0004] In view of the above-mentioned disadvantages of the prior art, the present application provides a production control method, system, electronic device and storage medium for a stable carbon cycle blast furnace.

[0005] In the first aspect, the present application provides a production control method for a stable carbon cycle blast furnace, and the production control method includes:

[0006] Obtain the types of circulating gas, the real-time amount of circulating gas, the real-time content of each component in the circulating gas, and the real-time average specific heat capacity of the circulating gas in blast furnace production;

[0007] Determine an adjustment strategy according to the real-time amount of circulating gas, the real-time content of each component in the circulating gas, and the type of circulating gas;

[0008] Adjust the blast furnace production conditions according to the adjustment strategy, and carry out production according to the adjusted blast furnace production conditions;

[0009] Obtain the real-time output, real-time production indexes, replacement ratio of recycled gas, heat data, and the amount of gas formed by fuel combustion in front of the tuyere during production according to the adjusted blast furnace production conditions;

[0010] Based on the heat data, the amount of gas formed by fuel combustion in front of the tuyere, the replacement ratio, and the real-time production indexes, determine the operating state, where the operating state includes stable and unstable;

[0011] If the operating state is unstable, repeat the adjustment according to the adjustment strategy and repeat the determination of the operating state until the operating state is stable.

[0012] In an exemplary embodiment of the present application, determining the adjustment strategy includes:

[0013] Determine the fluctuation amount of recycled gas according to the real-time amount of recycled gas corresponding to adjacent time points;

[0014] Determine the calorific value fluctuation amount according to the real-time content of each component in the recycled gas.

[0015] Based on the type of recycled gas, the fluctuation amount of recycled gas, and the calorific value fluctuation amount, determine the adjustment strategy.

[0016] In an exemplary embodiment of the present application, determining the calorific value fluctuation amount includes:

[0017] Determine the real-time calorific value of the recycled gas according to the real-time content of each component in the recycled gas;

[0018] Determine the calorific value fluctuation amount according to the real-time calorific value of the recycled gas corresponding to adjacent time points;

[0019] In an exemplary embodiment of the present application, the types of recycled gas include coke oven gas, converter gas, and blast furnace gas. Determining the adjustment strategy includes:

[0020] If the fluctuation amount of recycled gas is less than the preset threshold of gas volume fluctuation, and the type of recycled gas is coke oven gas, increasing the pulverized coal injection amount according to the first preset injection amount, increasing the coke ratio according to the first preset coke ratio, and increasing the oxygen-enriched blast volume according to the first preset oxygen-enriched blast volume are determined as the adjustment methods for blast furnace production conditions;

[0021] If the fluctuation amount of recycled gas is less than the preset threshold of gas volume fluctuation, and the type of recycled gas is converter gas, increasing the pulverized coal injection amount according to the second preset injection amount, increasing the coke ratio according to the second preset coke ratio, and increasing the oxygen-enriched blast volume according to the second preset oxygen-enriched blast volume are determined as the adjustment methods for blast furnace production conditions;

[0022] If the fluctuation amount of the recycled gas is less than the preset threshold of the gas amount fluctuation, and the type of the recycled gas is blast furnace gas, the pulverized coal injection amount will be increased according to the third preset injection amount, the coke ratio will be increased according to the third preset coke ratio, and the oxygen-enriched blast volume will be increased according to the third preset oxygen-enriched blast volume, which is determined as the adjustment method of the blast furnace production conditions;

[0023] If the calorific value fluctuation amount is greater than the preset threshold of the calorific value fluctuation, the pulverized coal injection amount will be decreased according to the fourth preset injection amount, and the coke ratio will be decreased according to the fourth preset coke ratio, which is determined as the adjustment method of the blast furnace production conditions.

[0024] In an exemplary embodiment of the present application, determining the adjustment strategy further includes:

[0025] If the fluctuation amount of the recycled gas is greater than the preset threshold of the gas amount fluctuation, and the type of the recycled gas is coke oven gas, the pulverized coal injection amount will be decreased according to the fifth preset injection amount, the coke ratio will be decreased according to the fifth preset coke ratio, and the oxygen-enriched blast volume will be decreased according to the fourth preset oxygen-enriched blast volume, which is determined as the adjustment method of the blast furnace production conditions;

[0026] If the fluctuation amount of the recycled gas is greater than the preset threshold of the gas amount fluctuation, and the type of the recycled gas is converter gas, the pulverized coal injection amount will be decreased according to the sixth preset injection amount, the coke ratio will be decreased according to the sixth preset coke ratio, and the oxygen-enriched blast volume will be decreased according to the fifth preset oxygen-enriched blast volume, which is determined as the adjustment method of the blast furnace production conditions;

[0027] If the fluctuation amount of the recycled gas is greater than the preset threshold of the gas amount fluctuation, and the type of the recycled gas is blast furnace gas, the pulverized coal injection amount will be decreased according to the seventh preset injection amount, the coke ratio will be decreased according to the seventh preset coke ratio, and the oxygen-enriched blast volume will be decreased according to the sixth preset oxygen-enriched blast volume, which is determined as the adjustment method of the blast furnace production conditions;

[0028] If the calorific value fluctuation amount is less than the preset threshold of the calorific value fluctuation, the pulverized coal injection amount will be increased according to the eighth preset injection amount, and the coke ratio will be increased according to the eighth preset coke ratio, which is determined as the adjustment method of the blast furnace production conditions.

[0029] In an exemplary embodiment of the present application, the heat data includes the heat released by the combustion of coke in front of the tuyere, the heat released by the combustion of pulverized coal in front of the tuyere, the physical heat of the coke when it enters the combustion zone, the heat brought in by the blast, the heat consumed by the decomposition of moisture, and the heat consumed by the decomposition of pulverized coal. Determining the operating state includes:

[0030] Based on the heat released by the combustion of coke in front of the tuyere, the heat released by the combustion of pulverized coal in front of the tuyere, the heat brought in by the gas, the heat released by the decomposition of hydrocarbon substances in the gas into carbon monoxide and hydrogen, the physical heat of the coke when it enters the combustion zone, the heat brought in by the blast, the heat consumed by the decomposition of moisture, the heat consumed by the decomposition of pulverized coal, the volume of the gas formed by the combustion of the fuel in front of the tuyere, and the average specific heat capacity of the real-time recycled gas, determine the theoretical combustion temperature;

[0031] Based on the theoretical combustion temperature, replacement ratio, and real-time production indicators, determine the operating state.

[0032] In an exemplary embodiment of the present application, determining the operating state includes:

[0033] If the theoretical combustion temperature is greater than or equal to the preset temperature lower threshold and less than or equal to the preset temperature upper threshold, the replacement ratio is greater than or equal to the preset replacement ratio threshold, and the real-time production indicator is greater than or equal to the preset production indicator threshold, determine the operating state as stable;

[0034] If the theoretical combustion temperature is less than the preset temperature lower threshold, determine the operating state as unstable;

[0035] If the theoretical combustion temperature is greater than the preset temperature upper threshold, determine the operating state as unstable;

[0036] If the replacement ratio is less than the preset replacement ratio threshold, determine the operating state as unstable;

[0037] If the real-time production indicator is less than the preset production indicator threshold, determine the operating state as unstable.

[0038] In a second aspect, the present application provides a production control system for a stable carbon cycle blast furnace. The production control system includes:

[0039] A first acquisition module for acquiring the types of recycled gas, the real-time amount of recycled gas, the real-time content of each component in the recycled gas, and the real-time average specific heat capacity of the recycled gas in the blast furnace production;

[0040] A first determination module for determining an adjustment strategy based on the real-time amount of recycled gas, the real-time content of each component in the recycled gas, and the type of recycled gas;

[0041] A processing module for adjusting the blast furnace production conditions according to the adjustment strategy and producing according to the adjusted blast furnace production conditions;

[0042] A second acquisition module for acquiring the real-time output, real-time production indicators, replacement ratio of the recycled gas, heat data, and the amount of gas formed by the combustion of fuel in front of the tuyere during production according to the adjusted blast furnace production conditions;

[0043] A second determination module for determining the operating state based on the heat data, the amount of gas formed by the combustion of fuel in front of the tuyere, the replacement ratio, and the real-time production indicators. The operating state includes stable and unstable;

[0044] A third determination module, if the operating state is unstable, for repeatedly adjusting according to the adjustment strategy and repeatedly determining the operating state until the operating state is stable.

[0045] In a third aspect, the present application further provides an electronic device, characterized in that the electronic device includes:

[0046] One or more processors;

[0047] A storage device for storing one or more programs, which, when executed by the one or more processors, cause the electronic device to implement the production control method of the stable carbon cycle blast furnace as described above.

[0048] In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor of a computer, causes the computer to execute the production control method of the stable carbon cycle blast furnace as described above.

[0049] The production control method, system, electronic device and storage medium of the stable carbon cycle blast furnace of the present application have the following beneficial effects:

[0050] The present application determines the adjustment strategy by obtaining the types of circulating gas, the real-time quantity of circulating gas, the real-time content of each component in the circulating gas, and the real-time average specific heat capacity of the circulating gas in the blast furnace production. According to the real-time quantity of circulating gas, the real-time content of each component in the circulating gas and the type of circulating gas, the adjustment strategy is determined, the blast furnace production conditions are adjusted according to the adjustment strategy, and production is carried out according to the adjusted blast furnace production conditions. The real-time output, real-time production index, replacement ratio of circulating gas, heat data, and the amount of gas formed by fuel combustion in front of the tuyere are obtained during production according to the adjusted blast furnace production conditions. Based on the heat data, the amount of gas formed by fuel combustion in front of the tuyere, the replacement ratio, and the real-time production index, the operating state is determined. If the operating state is unstable, the adjustment is repeated according to the adjustment strategy, and the operating state is repeatedly determined until the operating state is stable. That is, during the blast furnace production process, the present application can achieve stable and smooth operation of the carbon cycle blast furnace by coordinately adjusting the technological conditions of the carbon cycle blast furnace production, so as to achieve the purpose of increasing the replacement ratio of solid fuel by circulating gas and reducing the carbon emission of blast furnace smelting.

[0051] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0053] Figure 1 Flow chart of the production control method of a stable carbon cycle blast furnace shown in an exemplary embodiment of the present application;

[0054] Figure 2 For Figure 1 Flow chart of determining the adjustment strategy in an exemplary embodiment shown in the illustrated embodiment;

[0055] Figure 3 For Figure 2 Flow chart of determining the calorific value fluctuation in an exemplary embodiment shown in the illustrated embodiment;

[0056] Figure 4 For Figure 2 Flow chart of determining the adjustment strategy in an exemplary embodiment shown in the illustrated embodiment;

[0057] Figure 5 For Figure 2 Flow chart of determining the adjustment strategy in another exemplary embodiment shown in the illustrated embodiment;

[0058] Figure 6 For Figure 1 Flow chart of determining the operating state in another exemplary embodiment shown in the illustrated embodiment;

[0059] Figure 7 For Figure 6 Flow chart of determining the operating state in another exemplary embodiment shown in the illustrated embodiment;

[0060] Figure 8 Flow chart of the production control method of a stable carbon cycle blast furnace shown in a specific embodiment;

[0061] Figure 9 Block diagram of the production control system of a stable carbon cycle blast furnace shown in an exemplary embodiment of the present application;

[0062] Figure 10 Schematic diagram of the structure of a computer system of an electronic device suitable for implementing the embodiments of the present application. Detailed implementation manners

[0063] The following will describe the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners, and various details in this specification can also be modified or changed according to different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for explaining the present invention, rather than for limiting the protection scope of the present invention.

[0064] It should be noted that the illustrations provided in the following embodiments only schematically illustrate the basic concept of the present invention. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0065] In the following description, a large number of details are explored to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0066] Please refer to Figure 1 , Figure 1 which is a flowchart of a production control method for a stable carbon cycle blast furnace shown in an exemplary embodiment of the present application.

[0067] As Figure 1 shown, in an exemplary embodiment of the present application, the production control method for a stable carbon cycle blast furnace at least includes steps S110 to S160, which are introduced in detail as follows:

[0068] Step S110. Obtain the types of circulating gas, the real-time quantity of circulating gas, the real-time content of each component in the circulating gas, and the real-time average specific heat capacity of the circulating gas in the blast furnace production;

[0069] It should be noted that the circulating gas includes coke oven gas, converter gas, and blast furnace gas;

[0070] The real-time average specific heat capacity of the circulating gas is obtained by multiplying the real-time content of each component in the real-time circulating gas by the specific heat capacity of the corresponding component and then summing them up;

[0071] Step S120. Determine an adjustment strategy based on the real-time quantity of circulating gas, the real-time content of each component in the circulating gas, and the type of circulating gas;

[0072] Step S130. Adjust the blast furnace production conditions according to the adjustment strategy and carry out production according to the adjusted blast furnace production conditions;

[0073] Step S140. Obtain the real-time output, real-time production index, replacement ratio of the circulating gas, heat data, and the amount of gas formed by the combustion of fuel in front of the tuyere during production according to the adjusted blast furnace production conditions;

[0074] Step S150. Determine the operating state based on the heat data, the amount of gas formed by the combustion of fuel in front of the tuyere, the replacement ratio, and the real-time production index;

[0075] It should be noted that the real-time production indicators include molten iron output, utilization coefficient of blast furnace (i.e., utilization coefficient of effective volume of blast furnace), energy consumption, comprehensive fuel ratio, etc.;

[0076] In this application, the operating state includes stable and unstable;

[0077] Step S160. If the operating state is unstable, repeatedly adjust according to the adjustment strategy, and repeatedly determine the operating state until the operating state is stable.

[0078] In the related art, the blast furnace stabilizes the blast furnace condition by stabilizing the quality of raw materials and fuels, stabilizing the blowing regime, etc. The factors affecting the stable and smooth operation of the blast furnace, such as the quality of raw materials and fuels and the stable blowing regime, have relatively small fluctuations and are relatively easy to control. After analyzing the related art, the inventor found that the injection of blast gas has been added as an unstable factor in the condition of the carbon cycle blast furnace. Compared with the condition of the traditional blast furnace, the risk of blast furnace condition fluctuations has increased. Moreover, compared with other fluctuation factors such as fluctuations in raw material conditions, since it belongs to secondary energy, the fluctuation frequency and fluctuation range of its composition and generation amount are larger and it is more difficult to control. Injecting blast gas with large fluctuations into the blast furnace will cause the condition of the carbon cycle blast furnace to be difficult to operate stably and smoothly, and then it is impossible to achieve a good effect of replacing solid fuels in the blast furnace with gas, and ultimately the decarbonization effect of the carbon cycle blast furnace smelting is not ideal. Therefore, the inventor considered obtaining the types of recycled gas produced by the blast furnace, the real-time amount of recycled gas, the real-time content of each component in the recycled gas, and the real-time average specific heat capacity of the recycled gas, determining the adjustment strategy according to the real-time amount of recycled gas, the real-time content of each component in the recycled gas, and the type of recycled gas, adjusting the blast furnace production conditions according to the adjustment strategy, and producing according to the adjusted blast furnace production conditions, obtaining the real-time output, real-time production indicators, replacement ratio of recycled gas, heat data, and the amount of gas formed by fuel combustion in front of the tuyere during production according to the adjusted blast furnace production conditions, determining the operating state based on the heat data, the amount of gas formed by fuel combustion in front of the tuyere, the replacement ratio, and the real-time production indicators. If the operating state is unstable, repeatedly adjust according to the adjustment strategy, and repeatedly determine the operating state until the operating state is stable. That is, during the blast furnace production process, this application can achieve stable and smooth operation of the carbon cycle blast furnace by coordinately adjusting the process conditions of the carbon cycle blast furnace production, so as to achieve the purpose of increasing the replacement ratio of recycled gas for solid fuels and reducing carbon emissions in blast furnace smelting.

[0079] Please refer to Figure 2 , Figure 2 For Figure 1 the flowchart of determining the adjustment strategy in an exemplary embodiment shown in

[0080] As Figure 2 shown, in an exemplary embodiment of this application, Figure 1The process of determining the adjustment strategy in the illustrated embodiment includes steps S210 to S230, which are introduced in detail as follows:

[0081] Step S210. Determine the fluctuation amount of the circulating gas according to the real-time amount of the circulating gas corresponding to adjacent time points;

[0082] Specifically, the difference between the real-time amount of the circulating gas corresponding to the adjacent later time point and the real-time amount of the circulating gas corresponding to the adjacent previous time point is the fluctuation amount of the circulating gas;

[0083] Step S210. Determine the calorific value fluctuation amount according to the real-time content of each component in the circulating gas;

[0084] Step S230. Determine the adjustment strategy based on the type of the circulating gas, the fluctuation amount of the circulating gas, and the calorific value fluctuation amount.

[0085] Please refer to Figure 3 , Figure 3 For Figure 2 the flowchart of determining the calorific value fluctuation amount in the illustrated embodiment in an exemplary embodiment.

[0086] As Figure 3 shown, in an exemplary embodiment of the present application, Figure 2 the process of determining the calorific value fluctuation amount in the illustrated embodiment includes steps S310 and S320, which are introduced in detail as follows:

[0087] Step S310. Determine the real-time calorific value of the circulating gas according to the real-time content of each component in the circulating gas;

[0088] Exemplarily, determine the real-time calorific value of the circulating gas according to formula (I):

[0089]

[0090] Wherein, Q 煤气 is the real-time calorific value of the circulating gas, and the unit is kJ / Nm 3 ; ω CO is the volume fraction of carbon monoxide gas in the circulating gas; is the volume fraction of hydrogen in the circulating gas; is the volume fraction of methane in the circulating gas.

[0091] Step S320. Determine the calorific value fluctuation amount according to the real-time calorific value of the circulating gas corresponding to adjacent time points;

[0092] Specifically, the difference between the real-time calorific value of the circulating gas corresponding to the adjacent later time point and the real-time calorific value of the circulating gas corresponding to the adjacent previous time point is the calorific value fluctuation amount;

[0093] Please refer to Figure 4 ,Figure 4 For Figure 2 The flowchart for determining the adjustment strategy in the illustrated embodiment in an exemplary embodiment.

[0094] As Figure 4 shown, in an exemplary embodiment of the present application, the types of circulating gas include coke oven gas, converter gas, and blast furnace gas. Figure 2 The process of determining the adjustment strategy in the illustrated embodiment includes steps S410 to S440, which are introduced in detail as follows:

[0095] Step S410. If the fluctuation amount of the circulating gas is less than the preset threshold of the gas amount fluctuation, and the type of circulating gas is coke oven gas, the pulverized coal injection amount will be increased according to the first preset injection amount, the coke ratio will be increased according to the first preset coke ratio, and the oxygen enrichment blast volume will be increased according to the first preset oxygen enrichment blast volume, and it is determined as the adjustment method for blast furnace production conditions;

[0096] Step S420. If the fluctuation amount of the circulating gas is less than the preset threshold of the gas amount fluctuation, and the type of circulating gas is converter gas, the pulverized coal injection amount will be increased according to the second preset injection amount, the coke ratio will be increased according to the second preset coke ratio, and the oxygen enrichment blast volume will be increased according to the second preset oxygen enrichment blast volume, and it is determined as the adjustment method for blast furnace production conditions;

[0097] Step S430. If the fluctuation amount of the circulating gas is less than the preset threshold of the gas amount fluctuation, and the type of circulating gas is blast furnace gas, the pulverized coal injection amount will be increased according to the third preset injection amount, the coke ratio will be increased according to the third preset coke ratio, and the oxygen enrichment blast volume will be increased according to the third preset oxygen enrichment blast volume, and it is determined as the adjustment method for blast furnace production conditions;

[0098] Step S440. If the calorific value fluctuation amount is greater than the preset threshold of the calorific value fluctuation, the pulverized coal injection amount will be decreased according to the fourth preset injection amount, and the coke ratio will be decreased according to the fourth preset coke ratio, and it is determined as the adjustment method for blast furnace production conditions.

[0099] It should be noted that the preset threshold of the gas amount fluctuation, the first preset injection amount, the first preset coke ratio, the first preset oxygen enrichment blast volume, the second preset injection amount, the second preset coke ratio, the second preset oxygen enrichment blast volume, the third preset injection amount, the third preset coke ratio, the third preset oxygen enrichment blast volume, the preset threshold of the calorific value fluctuation, the fourth preset injection amount, and the fourth preset coke ratio can be set by oneself and will not be elaborated here.

[0100] Please refer to Figure 5 , Figure 5 For Figure 2 The flowchart for determining the adjustment strategy in the illustrated embodiment in another exemplary embodiment.

[0101] As Figure 5 shown, in another exemplary embodiment of the present application, Figure 2The process of determining the adjustment strategy in the illustrated embodiment further includes steps S510 to S540, which are introduced in detail as follows:

[0102] Step S510. If the fluctuation amount of the circulating gas is greater than the preset threshold of the gas volume fluctuation, and the type of the circulating gas is coke oven gas, the pulverized coal injection amount will be reduced according to the fifth preset injection amount, the coke ratio will be reduced according to the fifth preset coke ratio, and the oxygen-enriched blast volume will be reduced according to the fourth preset oxygen-enriched blast volume, which is determined as the adjustment method for the blast furnace production conditions;

[0103] Step S520. If the fluctuation amount of the circulating gas is greater than the preset threshold of the gas volume fluctuation, and the type of the circulating gas is converter gas, the pulverized coal injection amount will be reduced according to the sixth preset injection amount, the coke ratio will be reduced according to the sixth preset coke ratio, and the oxygen-enriched blast volume will be reduced according to the fifth preset oxygen-enriched blast volume, which is determined as the adjustment method for the blast furnace production conditions;

[0104] Step S530. If the fluctuation amount of the circulating gas is greater than the preset threshold of the gas volume fluctuation, and the type of the circulating gas is blast furnace gas, the pulverized coal injection amount will be reduced according to the seventh preset injection amount, the coke ratio will be reduced according to the seventh preset coke ratio, and the oxygen-enriched blast volume will be reduced according to the sixth preset oxygen-enriched blast volume, which is determined as the adjustment method for the blast furnace production conditions;

[0105] Step S540. If the calorific value fluctuation amount is less than the preset threshold of the calorific value fluctuation, the pulverized coal injection amount will be increased according to the eighth preset injection amount, and the coke ratio will be increased according to the eighth preset coke ratio, which is determined as the adjustment method for the blast furnace production conditions.

[0106] It should be noted that the fifth preset injection amount, the fifth preset coke ratio, the fourth preset oxygen-enriched blast volume, the sixth preset injection amount, the sixth preset coke ratio, the fifth preset oxygen-enriched blast volume, the seventh preset injection amount, the seventh preset coke ratio, the sixth preset oxygen-enriched blast volume, the eighth preset injection amount, the eighth preset coke ratio, and the eighth preset oxygen-enriched blast volume can be set by oneself, and will not be elaborated here.

[0107] Please refer to Figure 6 , Figure 6 For Figure 1 the flowchart of determining the operating state in the illustrated embodiment in an exemplary embodiment.

[0108] As Figure 6 shown, in an exemplary embodiment of the present application, the heat data includes the heat released by the combustion of coke in front of the tuyere, the heat released by the combustion of pulverized coal in front of the tuyere, the physical heat of the coke when it enters the combustion zone, the heat brought in by the blast, the heat brought in by the gas, the heat released by the decomposition of hydrocarbon substances in the gas into carbon monoxide and hydrogen, the heat consumed by the decomposition of water, and the heat consumed by the decomposition of pulverized coal. Figure 1 The process of determining the operating state in the illustrated embodiment includes steps S610 and S620, which are introduced in detail as follows:

[0109] Step S610. Determine the theoretical combustion temperature based on the heat released by the combustion of coke in front of the tuyere, the heat released by the combustion of pulverized coal in front of the tuyere, the physical heat of the coke when it enters the combustion zone, the heat brought in by the blast air, the heat brought in by the gas, the heat released by the decomposition of hydrocarbon substances in the gas into carbon monoxide and hydrogen, the heat consumed by the decomposition of moisture, the heat consumed by the decomposition of pulverized coal, the volume of gas formed by the combustion of fuel in front of the tuyere, and the average specific heat capacity of the real-time circulating gas.

[0110] Exemplarily, determine the theoretical combustion temperature according to Equation (II):

[0111]

[0112] where TF is the theoretical combustion temperature, with the unit of K; is the heat released by the combustion of coke in front of the tuyere, with the unit of J / t; is the heat released by the combustion of pulverized coal in front of the tuyere, with the unit of kJ / t; Q 焦物 is the physical heat brought in by the coke when it enters the combustion zone, with the unit of J; Q 风 is the heat brought in by the blast air, with the unit of kJ / t; Q 煤气 is the heat brought in by the gas, with the unit of kJ / t; Q 煤气解 is the heat released by the decomposition of hydrocarbon substances in the gas into carbon monoxide and hydrogen, with the unit of kJ / t; Q 水解 is the heat consumed by the decomposition of moisture (i.e., the total heat consumed by the decomposition of the moisture contained in the raw materials), with the unit of kJ / t; Q 煤解 is the heat consumed by the decomposition of pulverized coal, with the unit of kJ / t; V 煤气 is the volume of gas formed by the combustion and decomposition of fuel in front of the tuyere (here referring to volume), with the unit of m 3 / t; c 煤气 is the average specific heat capacity of the real-time circulating gas (here referring to volume specific heat capacity), with the unit of kJ / m 3 / K;

[0113] Step S620. Determine the operating state based on the theoretical combustion temperature, the replacement ratio, and the real-time production indicators.

[0114] Please refer to Figure 7 , Figure 7 is Figure 6 the flowchart of determining the operating state in an exemplary embodiment shown in

[0115] As Figure 7 shown, in an exemplary embodiment of the present application, Figure 6 the process of determining the operating state in the embodiment shown in

[0116] Step S710. If the theoretical combustion temperature is greater than or equal to the preset temperature lower threshold and less than or equal to the preset temperature upper threshold, the substitution ratio is greater than or equal to the preset substitution ratio threshold, and the real-time production index is greater than or equal to the preset production index threshold, determine the operating state as stable;

[0117] Specifically, if the theoretical combustion temperature is greater than the preset temperature lower threshold and less than the preset temperature upper threshold, the substitution ratio is greater than or equal to the preset substitution ratio threshold, and the real-time production index is greater than or equal to the preset production index threshold (that is, each real-time production index is greater than or equal to the corresponding preset production index threshold), determine the operating state as stable;

[0118] Step S720. If the theoretical combustion temperature is less than the preset temperature lower threshold, determine the operating state as unstable;

[0119] Step S730. If the theoretical combustion temperature is greater than the preset temperature upper threshold, determine the operating state as unstable;

[0120] Step S740. If the substitution ratio is less than the preset substitution ratio threshold, determine the operating state as unstable;

[0121] Step S750. If the real-time production index is less than the preset production index threshold, determine the operating state as unstable.

[0122] Specifically, if one of the real-time production indexes is less than the corresponding preset production index threshold, determine the operating state as unstable.

[0123] Please refer to Figure 8 , Figure 8 which is a flowchart of the production control method of a stable carbon cycle blast furnace shown in a specific embodiment.

[0124] As Figure 8 shown, the steps of the production control method of a stable carbon cycle blast furnace are as follows:

[0125] Obtain the types of recycled gas, the real-time amount of recycled gas, the real-time content of each component in the recycled gas, and the real-time average specific heat capacity of the recycled gas in the blast furnace production. The types of recycled gas include coke oven gas, converter gas, and blast furnace gas. Among them, the real-time average specific heat capacity of the recycled gas is obtained by multiplying the real-time content of each component in the real-time recycled gas by the specific heat capacity of the corresponding component and then summing them up;

[0126] Determine the fluctuation amount of the recycled gas according to the real-time amount of the recycled gas corresponding to adjacent time points. Specifically, subtract the real-time amount of the recycled gas corresponding to the adjacent previous time point from the real-time amount of the recycled gas corresponding to the adjacent subsequent time point to obtain the fluctuation amount of the recycled gas;

[0127] Determine the real-time calorific value of the recycled gas according to the real-time content of each component in the recycled gas according to Equation (I):

[0128]

[0129] Among them, Q 煤气 is the real-time calorific value of the circulating gas, with the unit of kJ / Nm 3 ; ω CO is the volume fraction of carbon monoxide gas in the circulating gas; is the volume fraction of hydrogen in the circulating gas; is the volume fraction of methane in the circulating gas;

[0130] According to the real-time calorific value of the circulating gas corresponding to adjacent time points, determine the calorific value fluctuation amount. Specifically, subtract the real-time calorific value of the circulating gas corresponding to the adjacent previous time point from the real-time calorific value of the circulating gas corresponding to the adjacent subsequent time point to obtain the calorific value fluctuation amount;

[0131] Based on the circulating gas type, circulating gas fluctuation amount and calorific value fluctuation amount, determine the adjustment strategy. Specifically:

[0132] If the circulating gas fluctuation amount is less than the preset threshold of the gas volume fluctuation, 10 Nm 3 / thm, that is, for every 10 Nm 3 / thm reduction in the circulating gas volume, and the circulating gas type is coke oven gas, the pulverized coal injection rate will be increased by the first preset injection rate of 1.5 kg / thm, that is, the pulverized coal injection rate will be increased by a magnitude of 1.5 kg / thm, the coke ratio will be increased by the first preset coke ratio of 2.5 kg / thm, that is, the coke ratio will be increased by a magnitude of 2.5 kg / thm, and the oxygen-enriched blast volume will be increased by the first preset oxygen-enriched blast volume of 10 Nm 3 / thm, that is, the oxygen-enriched blast volume will be increased by a magnitude of 10 Nm 3 / thm, which is determined as the adjustment method of the blast furnace production conditions;

[0133] If the circulating gas fluctuation amount is less than the preset threshold of the gas volume fluctuation, 10 Nm 3 / thm, that is, for every 10 Nm 3 / thm reduction in the circulating gas volume, and the circulating gas type is converter gas, the pulverized coal injection rate will be increased by the second preset injection rate of 1 kg / thm, that is, the pulverized coal injection rate will be increased by a magnitude of 1 kg / thm, the coke ratio will be increased by the second preset coke ratio of 1.8 kg / thm, that is, the coke ratio will be increased by a magnitude of 1.8 kg / thm, and the oxygen-enriched blast volume will be increased by the second preset oxygen-enriched blast volume of 10 Nm 3 / thm, that is, the oxygen-enriched blast volume will be increased by a magnitude of 10 Nm 3 / thm, which is determined as the adjustment method of the blast furnace production conditions;

[0134] If the circulating gas fluctuation amount is less than the preset threshold of the gas volume fluctuation, 10 Nm3 / thm, that is, for every 10 Nm decrease in the circulating gas volume 3 / thm, the circulating gas type is blast furnace gas. The pulverized coal injection rate will be increased by 0.9 kg / thm according to the third preset injection rate, that is, the pulverized coal injection rate will be increased by a magnitude of 0.9 kg / thm. The coke ratio will be increased by 1.3 kg / thm according to the third preset coke ratio, that is, the coke ratio will be increased by a magnitude of 1.3 kg / thm. The oxygen-enriched blast volume will be increased by 10 Nm 3 / thm, that is, the oxygen-enriched blast volume will be increased by a magnitude of 10 Nm 3 / thm, which is determined as the adjustment method for blast furnace production conditions;

[0135] If the fluctuation volume of the circulating gas is greater than the preset threshold of 10 Nm for gas volume fluctuation 3 / thm, the circulating gas type is coke oven gas. The pulverized coal injection rate will be decreased by 1.2 kg / thm according to the fifth preset injection rate, that is, the pulverized coal injection rate will be decreased by a magnitude of 1.2 kg / thm. The coke ratio will be decreased by 1 kg / thm according to the fifth preset coke ratio, that is, the coke ratio will be decreased by a magnitude of 1 kg / thm. The oxygen-enriched blast volume will be decreased by 10 Nm 3 / thm, that is, the oxygen-enriched blast volume will be decreased by a magnitude of 10 Nm 3 / thm, which is determined as the adjustment method for blast furnace production conditions;

[0136] If the fluctuation volume of the circulating gas is greater than the preset threshold of 10 Nm for gas volume fluctuation 3 / thm, that is, for every 10 Nm increase in the circulating gas volume 3 / thm, the circulating gas type is converter gas. The pulverized coal injection rate will be decreased by 1 kg / thm according to the sixth preset injection rate, that is, the pulverized coal injection rate will be decreased by a magnitude of 0.8 kg / thm. The coke ratio will be decreased by 0.8 kg / thm according to the sixth preset coke ratio, that is, the coke ratio will be decreased by a magnitude of 1 kg / thm. The oxygen-enriched blast volume will be decreased by 10 Nm 3 / thm, that is, the oxygen-enriched blast volume will be decreased by a magnitude of 10 Nm 3 / thm, which is determined as the adjustment method for blast furnace production conditions;

[0137] If the fluctuation volume of the circulating gas is greater than the preset threshold of 10 Nm for gas volume fluctuation 3 / thm, that is, for every 10 Nm increase in the circulating gas volume 3 / thm, the type of circulating gas is blast furnace gas. The pulverized coal injection rate will be reduced by the seventh preset injection rate of 0.9 kg / thm, that is, the pulverized coal injection rate will be reduced by 0.9 kg / thm. The coke ratio will be reduced by the seventh preset coke ratio of 0.7 kg / thm, that is, the coke ratio will be reduced by 0.7 kg / thm. The oxygen-enriched blast volume will be reduced by the seventh preset oxygen-enriched blast volume of 10 Nm 3 / thm, that is, the oxygen-enriched blast volume will be reduced by 10 Nm 3 / thm, which is determined as the adjustment method for blast furnace production conditions;

[0138] If the calorific value fluctuation is greater than the preset threshold of calorific value fluctuation of 100 kJ / Nm 3 , the pulverized coal injection rate will be reduced by the fourth preset injection rate of 0.1 kg / thm, that is, the pulverized coal injection rate will be reduced by 0.1 kg / thm. The coke ratio will be reduced by the fourth preset coke ratio of 0.1 kg / thm, that is, the coke ratio will be reduced by 0.1 kg / thm, which is determined as the adjustment method for blast furnace production conditions;

[0139] If the calorific value fluctuation is less than the preset threshold of calorific value fluctuation of 100 kJ / Nm 3 , the pulverized coal injection rate will be increased by the eighth preset injection rate of 0.1 kg / thm, that is, the pulverized coal injection rate will be increased by 0.1 kg / thm. The coke ratio will be increased by the eighth preset coke ratio of 0.1 kg / thm, that is, the coke ratio will be increased by 0.1 kg / thm, which is determined as the adjustment method for blast furnace production conditions;

[0140] If both the circulating gas and the calorific value fluctuate, the adjustment methods of the pulverized coal injection rate and the coke ratio can be superimposed by their respective adjustment amplitudes when the circulating gas and the calorific value fluctuate separately. For example, if the circulating gas fluctuation is greater than the preset threshold of gas volume fluctuation of 10 Nm 3 / thm, that is, for every 10 Nm increase in the circulating gas volume 3 / thm, and the calorific value fluctuation is greater than the preset threshold of calorific value fluctuation of 100 kJ / Nm 3 , the type of circulating gas is blast furnace gas. The reduction of the pulverized coal injection rate by the seventh preset injection rate of 0.9 kg / thm + the reduction of the pulverized coal injection rate by the fourth preset injection rate of 0.1 kg / thm will be superimposed, that is, the pulverized coal injection rate will be reduced by 0.9 kg / thm + 0.1 kg / thm = 1.0 kg / thm. The reduction of the coke ratio by the seventh preset coke ratio of 0.7 kg / thm + the reduction of the coke ratio by the fourth preset coke ratio of 0.1 kg / thm will be superimposed, that is, the coke ratio will be reduced by 0.7 kg / thm + 0.1 kg / thm = 0.8 kg / thm as the adjustment methods of the pulverized coal injection rate and the coke ratio;

[0141] Adjust the blast furnace production conditions according to the adjustment strategy and carry out production according to the adjusted blast furnace production conditions;

[0142] Obtain the real-time output, real-time production indexes, replacement ratio of circulating gas, heat data and the gas volume formed by fuel combustion in front of the tuyere during production according to the adjusted blast furnace production conditions. Among them, the heat data includes the heat released by coke combustion in front of the tuyere, the heat released by pulverized coal combustion in front of the tuyere, the physical heat of coke when entering the combustion zone, the heat brought in by the blast, the heat brought in by the gas, the heat released by the decomposition of hydrocarbon substances in the gas into carbon monoxide and hydrogen, the heat consumed by water decomposition, and the heat consumed by pulverized coal decomposition. The real-time production indexes include hot metal output, utilization coefficient of the blast furnace (i.e., utilization coefficient of the effective volume of the blast furnace), energy consumption, comprehensive fuel ratio, etc.;

[0143] Based on the heat released by coke combustion in front of the tuyere, the heat released by pulverized coal combustion in front of the tuyere, the physical heat of coke when entering the combustion zone, the heat brought in by the blast, the heat brought in by the gas, the heat released by the decomposition of hydrocarbon substances in the gas into carbon monoxide and hydrogen, the heat consumed by water decomposition, the heat consumed by pulverized coal decomposition, the gas volume formed by fuel combustion in front of the tuyere and the average specific heat capacity of the real-time circulating gas, determine the theoretical combustion temperature according to formula (II):

[0144]

[0145] Among them, TF is the theoretical combustion temperature, and the unit is K; is the heat released by coke combustion in front of the tuyere, and the unit is J / t; is the heat released by pulverized coal combustion in front of the tuyere, and the unit is kJ / t; Q 焦物 is the physical heat brought in by coke when entering the combustion zone, and the unit is J; Q 风 is the heat brought in by the blast, and the unit is kJ / t; Q 煤气 is the heat brought in by the gas, and the unit is kJ / t; Q 煤气解 is the heat released by the decomposition of hydrocarbon substances in the gas into carbon monoxide and hydrogen, and the unit is kJ / t; Q 水解 is the heat consumed by water decomposition (i.e., the total heat consumed by the decomposition of the water contained in the raw materials), and the unit is kJ / t; Q 煤解 is the heat consumed by pulverized coal decomposition, and the unit is kJ / t; V 煤气 is the gas volume (here refers to the volume) formed by fuel combustion and decomposition in front of the tuyere, and the unit is m 3 / t; c 煤气 is the average specific heat capacity of the real-time circulating gas (here refers to the volume specific heat capacity), and the unit is kJ / m 3 / K;

[0146] Based on the theoretical combustion temperature, replacement ratio, and real-time production indicators, determine the operating status. Specifically:

[0147] If the theoretical combustion temperature is greater than or equal to the preset lower temperature threshold of 2373 K (i.e., 2100 °C) and less than or equal to the preset upper temperature threshold of 2673 K (i.e., 2300 °C), the replacement ratio is greater than or equal to the preset replacement ratio threshold (the preset replacement ratio thresholds for coke oven gas, converter gas, and blast furnace gas are 0.4 kg / Nm 3 , 0.28 kg / Nm 3 , and 0.22 kg / Nm 3 ), and the real-time production indicator is greater than or equal to the preset production indicator threshold, determine the operating status as stable;

[0148] Specifically, if the theoretical combustion temperature is greater than the preset lower temperature threshold and less than the preset upper temperature threshold, the replacement ratio is greater than or equal to the preset replacement ratio threshold, and the real-time production indicator is greater than or equal to the preset production indicator threshold (i.e., each real-time production indicator is greater than or equal to the corresponding preset production indicator threshold), determine the operating status as stable;

[0149] If the theoretical combustion temperature is less than the preset lower temperature threshold of 2373 K (i.e., 2100 °C), determine the operating status as unstable;

[0150] If the theoretical combustion temperature is greater than the preset upper temperature threshold of 2673 K (i.e., 2300 °C), determine the operating status as unstable;

[0151] If the replacement ratio is less than the preset replacement ratio threshold (the preset replacement ratio thresholds for coke oven gas, converter gas, and blast furnace gas are 0.4 kg / Nm 3 , 0.28 kg / Nm 3 , and 0.22 kg / Nm 3 ), determine the operating status as unstable;

[0152] If the real-time production indicator is less than the preset production indicator threshold, specifically, if one of the real-time production indicators is less than the corresponding preset production indicator threshold, determine the operating status as unstable;

[0153] If the operating status is unstable, repeatedly adjust the blast furnace production conditions according to the adjustment strategy and repeatedly determine the operating status until the operating status is stable.

[0154] Please refer to Figure 9 , Figure 9 which is a block diagram of the production control system M900 of the stable carbon cycle blast furnace shown in an exemplary embodiment of the present application.

[0155] As shown in Figure 9As shown in the figure, the production control system M900 of the stable carbon cycle blast furnace according to the embodiments of the present application includes:

[0156] A first acquisition module M910, configured to acquire the type of circulating gas, the real-time amount of circulating gas, the real-time content of each component in the circulating gas, and the real-time average specific heat capacity of the circulating gas during the production of the blast furnace;

[0157] A first determination module M920, configured to determine an adjustment strategy according to the real-time amount of circulating gas, the real-time content of each component in the circulating gas, and the type of circulating gas;

[0158] A processing module M930, configured to adjust the production conditions of the blast furnace according to the adjustment strategy, and carry out production according to the adjusted production conditions of the blast furnace;

[0159] A second acquisition module M940, configured to acquire the real-time output, real-time production index, replacement ratio of the circulating gas, heat data, and the amount of gas formed by the combustion of fuel in front of the tuyere during the production according to the adjusted production conditions of the blast furnace;

[0160] A second determination module M950, configured to determine the operating state based on the heat data, the amount of gas formed by the combustion of fuel in front of the tuyere, the replacement ratio, and the real-time production index, where the operating state includes stable and unstable;

[0161] A third determination module M960, if the operating state is unstable, is configured to repeatedly adjust according to the adjustment strategy, and repeatedly determine the operating state until the operating state is stable.

[0162] It should be noted that the production control system of the stable carbon cycle blast furnace provided in the above embodiments belongs to the same concept as the production control method of the stable carbon cycle blast furnace provided in the above embodiments. The specific manners in which each module and unit perform operations have been described in detail in the method embodiments, and will not be elaborated here. In practical applications, the production control system of the stable carbon cycle blast furnace provided in the above embodiments may, according to needs, allocate the above functions to different functional modules, that is, divide the internal structure of the device into different functional modules to complete all or part of the functions described above. No limitation is imposed here.

[0163] An embodiment of the present application further provides an electronic device, including: one or more processors; a storage device, configured to store one or more programs, when the one or more programs are executed by the one or more processors, enabling the electronic device to implement the production control method of the stable carbon cycle blast furnace provided in each of the above embodiments.

[0164] Figure 10 The structure diagram of a computer system of an electronic device suitable for implementing the embodiments of the present application is shown. It should be noted that, Figure 10The computer system 1000 of the illustrated electronic device is merely an example and should not impose any limitations on the functions and scope of use of the embodiments of the present application.

[0165] As Figure 10 shown, the computer system 1000 includes a central processing unit (CPU) 1001, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 1002 or the program loaded from the storage section 1008 into the random access memory (RAM) 1003, such as executing the method described in the above embodiments. In the RAM 1003, various programs and data required for system operation are also stored. The CPU 1001, ROM 1002, and RAM 1003 are connected to each other via a bus 1004. The input / output (I / O) interface 1005 is also connected to the bus 1004.

[0166] The following components are connected to the I / O interface 1005: an input section 1006 including a keyboard, a mouse, etc.; an output section 907 including, for example, a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 1008 including a hard disk, etc.; and a communication section 1009 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 1009 performs communication processing via a network such as the Internet. The drive 1010 is also connected to the I / O interface 1005 as needed. A removable medium 1011, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 1010 as needed so that a computer program read from it can be installed into the storage section 1008 as needed.

[0167] Specifically, according to the embodiments of the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments of the present application include a computer program product that includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication section 1009 and / or installed from the removable medium 911. When the computer program is executed by the central processing unit (CPU) 1001, various functions defined in the system of the present application are executed.

[0168] It should be noted that the computer-readable medium shown in the embodiments of the present application can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable computer program. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted by any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0169] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present application. Among them, each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, and the above module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order from that marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram or flowchart, and the combination of blocks in the block diagram or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0170] The units involved in the embodiments described in this application can be implemented in software or in hardware, and the described units can also be provided in a processor. Among them, the names of these units do not, in some cases, constitute a limitation on the units themselves.

[0171] On the other hand, this application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor of a computer, the computer is caused to execute the production control method of the stable carbon cycle blast furnace as described above. The computer-readable storage medium can be included in the electronic device described in the above embodiments, or can exist alone without being assembled into the electronic device.

[0172] On the other hand, this application also provides a computer program product or a computer program. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the production control method of the stable carbon cycle blast furnace provided in the above various embodiments.

[0173] The above embodiments are only used to exemplarily illustrate the principles and effects of the present invention, rather than to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A production control method for a stable carbon cycle blast furnace, characterized in that, The described production control method includes: Obtaining the types of recycled gas in blast furnace production, the real-time quantity of recycled gas, the real-time content of each component in the recycled gas, and the real-time average specific heat capacity of the recycled gas; Determining the fluctuation quantity of the recycled gas according to the real-time quantity of the recycled gas corresponding to adjacent time points; Determining the calorific value fluctuation quantity according to the real-time content of each component in the recycled gas; Determining an adjustment strategy based on the type of recycled gas, the fluctuation quantity of the recycled gas, and the calorific value fluctuation quantity; Adjusting the blast furnace production conditions according to the adjustment strategy and carrying out production according to the adjusted blast furnace production conditions; Obtaining the real-time output, real-time production index, replacement ratio of the recycled gas, heat data, and the quantity of gas formed by fuel combustion in front of the tuyere during production according to the adjusted blast furnace production conditions, where the heat data includes the heat released by coke combustion in front of the tuyere, the heat released by pulverized coal combustion in front of the tuyere, the heat brought in by the gas, the heat released by the decomposition of hydrocarbon substances in the gas into carbon monoxide and hydrogen, the physical heat of the coke when it enters the combustion zone, the heat brought in by the blast, the heat consumed by water decomposition, and the heat consumed by pulverized coal decomposition; Determining the theoretical combustion temperature based on the heat released by coke combustion in front of the tuyere, the heat released by pulverized coal combustion in front of the tuyere, the heat brought in by the gas, the heat released by the decomposition of hydrocarbon substances in the gas into carbon monoxide and hydrogen, the physical heat of the coke when it enters the combustion zone, the heat brought in by the blast, the heat consumed by water decomposition, the heat consumed by pulverized coal decomposition, the volume of gas formed by fuel combustion in front of the tuyere, and the average specific heat capacity of the real-time recycled gas; Determining the operating state based on the theoretical combustion temperature, replacement ratio, and real-time production index, where the operating state includes stable and unstable; If the operating state is unstable, repeat the adjustment according to the adjustment strategy and repeat determining the operating state until the operating state is stable.

2. The production control method of the stable carbon cycle blast furnace according to claim 1, wherein, Determining the calorific value fluctuation quantity includes: Determining the real-time calorific value of the recycled gas according to the real-time content of each component in the recycled gas; Determining the calorific value fluctuation quantity according to the real-time calorific value of the recycled gas corresponding to adjacent time points.

3. The production control method of the stable carbon cycle blast furnace according to claim 1, characterized in that, The types of the recycled gas include coke oven gas, converter gas, and blast furnace gas. Determining the adjustment strategy includes: If the fluctuation quantity of the recycled gas is less than the preset threshold of the gas quantity fluctuation, and the type of the recycled gas is coke oven gas, increasing the pulverized coal injection rate according to the first preset injection rate, increasing the coke ratio according to the first preset coke ratio, and increasing the oxygen enrichment blast volume according to the first preset oxygen enrichment blast volume, which is determined as the adjustment method of the blast furnace production conditions; If the fluctuation quantity of the recycled gas is less than the preset threshold of the gas quantity fluctuation, and the type of the recycled gas is converter gas, increasing the pulverized coal injection rate according to the second preset injection rate, increasing the coke ratio according to the second preset coke ratio, and increasing the oxygen enrichment blast volume according to the second preset oxygen enrichment blast volume, which is determined as the adjustment method of the blast furnace production conditions; If the fluctuation quantity of the recycled gas is less than the preset threshold of the gas quantity fluctuation, and the type of the recycled gas is blast furnace gas, increasing the pulverized coal injection rate according to the third preset injection rate, increasing the coke ratio according to the third preset coke ratio, and increasing the oxygen enrichment blast volume according to the third preset oxygen enrichment blast volume, which is determined as the adjustment method of the blast furnace production conditions; If the calorific value fluctuation amount is greater than the preset threshold of calorific value fluctuation, the pulverized coal injection amount will be reduced according to the fourth preset injection amount, and the coke ratio will be reduced according to the fourth preset coke ratio, which is determined as the adjustment method of blast furnace production conditions.

4. The production control method of the stable carbon cycle blast furnace according to claim 3, characterized in that, Determining the adjustment strategy also includes: If the circulating gas fluctuation amount is greater than the preset threshold of gas volume fluctuation, and the type of circulating gas is coke oven gas, the pulverized coal injection amount will be reduced according to the fifth preset injection amount, the coke ratio will be reduced according to the fifth preset coke ratio, and the oxygen-enriched blast volume will be reduced according to the fourth preset oxygen-enriched blast volume, which is determined as the adjustment method of blast furnace production conditions; If the circulating gas fluctuation amount is greater than the preset threshold of gas volume fluctuation, and the type of circulating gas is converter gas, the pulverized coal injection amount will be reduced according to the sixth preset injection amount, the coke ratio will be reduced according to the sixth preset coke ratio, and the oxygen-enriched blast volume will be reduced according to the fifth preset oxygen-enriched blast volume, which is determined as the adjustment method of blast furnace production conditions; If the circulating gas fluctuation amount is greater than the preset threshold of gas volume fluctuation, and the type of circulating gas is blast furnace gas, the pulverized coal injection amount will be reduced according to the seventh preset injection amount, the coke ratio will be reduced according to the seventh preset coke ratio, and the oxygen-enriched blast volume will be reduced according to the sixth preset oxygen-enriched blast volume, which is determined as the adjustment method of blast furnace production conditions; If the calorific value fluctuation amount is less than the preset threshold of calorific value fluctuation, the pulverized coal injection amount will be increased according to the eighth preset injection amount, and the coke ratio will be increased according to the eighth preset coke ratio, which is determined as the adjustment method of blast furnace production conditions.

5. The production control method of the stable carbon cycle blast furnace according to claim 1, characterized in that, Determining the operating state includes: If the theoretical combustion temperature is greater than or equal to the preset temperature lower limit threshold and less than or equal to the preset temperature upper limit threshold, the replacement ratio is greater than or equal to the preset replacement ratio threshold, and the real-time production index is greater than or equal to the preset production index threshold, the operating state is determined to be stable; If the theoretical combustion temperature is less than the preset temperature lower limit threshold, the operating state is determined to be unstable; If the theoretical combustion temperature is greater than the preset temperature upper limit threshold, the operating state is determined to be unstable; If the replacement ratio is less than the preset replacement ratio threshold, the operating state is determined to be unstable; If the real-time production index is less than the preset production index threshold, the operating state is determined to be unstable.

6. A production control system for a stable carbon cycle blast furnace, characterized in that, The production control system includes: The first acquisition module is used to obtain the type of circulating gas, the real-time amount of circulating gas, the real-time content of each component in the circulating gas, and the real-time average specific heat capacity of the circulating gas in blast furnace production; The first determination module is used to determine the circulating gas fluctuation amount according to the real-time amount of circulating gas corresponding to adjacent time points; determine the calorific value fluctuation amount according to the real-time content of each component in the circulating gas; and determine the adjustment strategy based on the type of circulating gas, the circulating gas fluctuation amount, and the calorific value fluctuation amount; The processing module is used to adjust the blast furnace production conditions according to the adjustment strategy and carry out production according to the adjusted blast furnace production conditions; The second acquisition module is used to obtain the real-time output, real-time production indexes, replacement ratio of the circulating gas, heat data, and the gas volume formed by the combustion of fuel in front of the tuyere during the production according to the adjusted blast furnace production conditions. The heat data includes the heat released by the combustion of coke in front of the tuyere, the heat released by the combustion of pulverized coal in front of the tuyere, the heat brought in by the gas, the heat released by the decomposition of hydrocarbons in the gas into carbon monoxide and hydrogen, the physical heat of the coke when it enters the combustion zone, the heat brought in by the blast, the heat consumed by the decomposition of water, and the heat consumed by the decomposition of pulverized coal. The second determination module is used to determine the theoretical combustion temperature based on the heat released by the combustion of coke in front of the tuyere, the heat released by the combustion of pulverized coal in front of the tuyere, the heat brought in by the gas, the heat released by the decomposition of hydrocarbons in the gas into carbon monoxide and hydrogen, the physical heat of the coke when it enters the combustion zone, the heat brought in by the blast, the heat consumed by the decomposition of water, the heat consumed by the decomposition of pulverized coal, the gas volume formed by the combustion of fuel in front of the tuyere, and the average specific heat capacity of the real-time circulating gas; and determine the operating state based on the theoretical combustion temperature, replacement ratio, and real-time production indexes. The operating state includes stable and unstable. The third determination module, if the operating state is unstable, is used to repeatedly adjust according to the adjustment strategy and repeatedly determine the operating state until the operating state is stable.

7. An electronic device, characterized in that, The electronic device includes: One or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, cause the electronic device to implement the production control method of the stable carbon cycle blast furnace according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, A computer program is stored thereon, which, when executed by the processor of the computer, causes the computer to execute the production control method of the stable carbon cycle blast furnace according to any one of claims 1-5.

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