Value-based carbon emission accounting method and system in steel production process

Abstract

The invention relates to the technical field of carbon emission accounting, and discloses a # imgabs0 # value-based carbon emission accounting method and system in a steel production process, and the method comprises the steps: obtaining the energy data of each process link in the steel production process; according to the energy data, obtaining an energy # imgabs 1 # value; and on the basis of the energy # imgabs2 # value, the carbon emission in the steel production process is obtained. A # imgabs3 # value is introduced as a basic metering method, a # imgabs4 # value is combined with carbon emission, the quality change of the # imgabs4 # value is uniformly measured through a # imgabs5 # value, and the carbon emission of each process link is calculated in combination with an improved carbon emission factor; the carbon emission accounting is no longer limited to total amount control, but is refined to each link, so that a high-emission area can be identified conveniently, and a targeted improvement scheme can be formulated.

Description

Technical Field

[0001] The present invention relates to the technical field of carbon emission accounting, and in particular to a method based on Carbon emission accounting method and system in the steel production process. Background Art

[0002] The steel production process is complex, covering multiple links such as coking, blast furnace, converter, electric furnace, etc., involving the conversion of materials such as ores, as well as the conversion of energy such as coal and electricity, and generating a large amount of carbon dioxide emissions in the process. At present, the carbon emission accounting of the steel industry mainly relies on the mass balance method. However, the steel production process involves the conversion of materials such as ores, as well as the conversion of energy such as coal and electricity, and the energy and material quality and conversion efficiency of different links are different. This method ignores the complexity of the steel production process, making it difficult to achieve a unified measurement method, which affects the formulation of differentiated emission reduction strategies for different production process flows.

[0003] Therefore, there is an urgent need for a carbon emissions accounting method in the steel production process that can accurately calculate the carbon emissions in the steel production process. Summary of the invention

[0004] In view of this, the present application provides a A carbon emission accounting method and system for the steel production process can accurately calculate the carbon emissions in the steel production process. The technical solution is as follows.

[0005] In a first aspect, the present invention provides a The carbon emission accounting method of the steel production process is as follows:

[0006] Obtain energy data for each process in the steel production process;

[0007] According to the energy data, the energy value;

[0008] Based on this energy The carbon emissions during steel production are obtained by calculating the value.

[0009] The present invention provides The carbon emission accounting method in the steel production process is also The value is used to uniformly measure the changes in its quality, and the carbon emissions of each process link are calculated in combination with the improved carbon emission factor; so that carbon emission accounting is no longer limited to total amount control, but is refined to each link, which is convenient for identifying high-emission areas and then formulating targeted improvement plans.

[0010] In an optional embodiment, the method further includes:

[0011] Obtain material data for each process step in the steel production process;

[0012] According to the material data, the material value;

[0013] According to this material Value and energy Value, get the input of steel production process Value, Output Value and loss value;

[0014] Based on this investment value, the output Value and loss value to obtain the conversion efficiency in the steel production process.

[0015] In an optional embodiment, the energy The expression for the value is:

[0016] Ex energy,i ≈α i ×LHV i ;

[0017] Where, Ex energy,i For energy Value; α is the energy approximation coefficient, LHV is the lower heating value.

[0018] In an alternative embodiment, the material The expression for the value is:

[0019] Ex material,j ≈β j ×Mass j ;

[0020] Where, Ex material,j For material j Value, β is the material approximation Coefficient, Mass is the mass of the input material.

[0021] In an optional embodiment, the material Value and energy Value, get the input of steel production process Value, Output Value and loss Values, including:

[0022] According to this energy Value, get energy input Value and energy output value;

[0023] According to this material Value, get material input Value and material output value;

[0024] According to the energy input Value, energy output Value, material input Value and material output Value, get the input of steel production process Value, Output Value and loss value;

[0025] Among them, the input of the steel production process Value, the expression is:

[0026]

[0027] The output of the steel production process Value, the expression is:

[0028]

[0029] The loss of the steel production process Value, the expression is:

[0030] Ex loss,p =Ex input,p -Ex output,p .

[0031] In an optional implementation, the conversion efficiency is expressed as:

[0032]

[0033] In an optional embodiment, the carbon emissions in the steel production process are obtained, including:

[0034] According to this energy The carbon emissions in the steel production process are obtained by p , the expression is:

[0035]

[0036] In the formula, Carbon p is the carbon emission of the steel production process; c i is the CO2 emission factor of energy source i;

[0037] According to the carbon emissions of steel production process p, the total carbon emissions of steel production are obtained as follows:

[0038]

[0039] The present invention provides The carbon emission accounting method in the steel production process will also The combination of value with energy and material flow accounting can reflect the flow and transformation of materials and energy in each process link.

[0040] The present invention provides a method based on The carbon emission accounting method in the steel production process has the following advantages.

[0041] The present invention is based on Carbon emission accounting method in steel production process The value is used to uniformly measure the quality change, and the carbon emission of each process link is calculated in combination with the improved carbon emission factor; the carbon emission accounting is no longer limited to total control, but is refined to each link, which is convenient for identifying high-emission areas and then formulating targeted improvement plans. This detailed accounting can not only intuitively display the carbon emission characteristics of each link, but also display the emission source of each link based on energy and material accounting, and support the adoption of precise emission reduction measures in specific processes. In addition, this method will also The combination of mass balance and energy and material flow accounting can reflect the flow and transformation of materials and energy in each process link. Specifically, first obtain the material data and energy data of each process link in the steel production process, including input data and output data. Based on the mass balance, calculate the materials and energy of each link in the steel production process, and obtain the energy of each link in the steel production process. Values ​​and Materials value. Then you can Value and energy Value, get the input of steel production process Value, Output Value, loss Value and comprehensive Conversion efficiency. Compared with the prior art, the present invention introduces The value establishes a unified measurement method for energy and materials in the steel production process, solves the measurement problems caused by different types of energy and materials in steel production, and realizes unified measurement of complex conversion processes. Using the value as a standardized indicator can avoid the problem of inability to directly compare each link in traditional methods, thereby improving the accuracy of accounting. A calculation method for the comprehensive conversion efficiency of the steel process flow has been established. By quantifying the comprehensive conversion efficiency of different process links, high-energy consumption and low-efficiency production links can be accurately identified. This method facilitates the optimization of energy use in the steel production process, reduces unnecessary energy losses, and promotes efficiency improvements in the production process.

[0042] In a second aspect, the present invention provides a The carbon emission accounting system in the steel production process is composed of:

[0043] The first acquisition module is used to obtain energy data of each process link in the steel production process;

[0044] The first calculation module is used to obtain energy according to the energy data. value;

[0045] The second calculation module is used to calculate the energy based on the The carbon emissions during steel production are obtained by calculating the value.

[0046] In an optional embodiment, the system further includes:

[0047] The second acquisition module is used to obtain material data of each process link in the steel production process;

[0048] The third calculation module is used to obtain the material according to the material data. value;

[0049] The fourth calculation module is used to calculate the Value and energy Value, get the input of steel production process Value, Output Value and loss value;

[0050] The fifth calculation module is used to calculate the value, the output Value and loss value to obtain the conversion efficiency in the steel production process.

[0051] In an optional implementation, the fourth calculation module is specifically configured to:

[0052] According to the energy Value, get energy input Value and energy output value;

[0053] According to the material Value, get material input Value and material output value;

[0054] According to the energy input Value, energy output Value, material input Value and material output Value, get the input of steel production process Value, Output Value and loss value;

[0055] Among them, the input of the steel production process Value, the expression is:

[0056]

[0057] Output of the steel production process Value, the expression is:

[0058]

[0059] Losses in the steel production process Value, the expression is:

[0060] Ex loss,p =Ex input,p -Ex output,p .

[0061] In a third aspect, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor are connected to each other for communication, the memory stores computer instructions, and the processor executes the computer instructions to perform the above-mentioned first aspect or any corresponding embodiment based on A method for calculating carbon emissions in the steel production process.

[0062] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to cause a computer to execute the method according to the first aspect or any corresponding embodiment thereof. A method for calculating carbon emissions in the steel production process.

[0063] In a fifth aspect, the present invention provides a computer program product, including computer instructions, the computer instructions are used to enable a computer to execute the method according to the first aspect or any corresponding embodiment thereof. A method for calculating carbon emissions in the steel production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0065] Figure 1 According to an exemplary embodiment, a method based on Schematic diagram of the method flow chart of the carbon emission accounting method in the steel production process.

[0066] Figure 2 It is a schematic diagram of a production process flow in a steel production process according to an exemplary embodiment.

[0067] Figure 3 The present invention is a flowchart of a method for calculating conversion efficiency in a steel production process according to an exemplary embodiment.

[0068] Figure 4 It is a flow chart showing input, output and loss in a steel production process according to an exemplary embodiment.

[0069] Figure 5 This embodiment of the present application provides a method based on Schematic diagram of the structure of the carbon emission accounting system in the steel production process.

[0070] Figure 6 It is a structural schematic diagram of a computer device provided by an optional embodiment of the present invention. DETAILED DESCRIPTION

[0071] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0072] It should be understood that the "indication" mentioned in the embodiments of the present application can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0073] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between two items, or an association relationship between the two items, or a relationship between indication and being indicated, configuration and being configured, and the like.

[0074] In an embodiment of the present application, "predefinition" can be achieved by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device). The present application does not limit its specific implementation method.

[0075] The steel production process is complex, covering multiple links such as coking, blast furnaces, converters, and electric furnaces. It involves the conversion of materials such as ores, as well as the conversion of energy such as coal and electricity, and generates a large amount of carbon dioxide emissions in the process. At present, the accounting of the steel industry mainly relies on the mass balance method. Although this type of method can provide quantitative information on carbon emissions, it is difficult to fully reflect the energy utilization efficiency and carbon emission characteristics in the production process. This limitation hinders the accurate identification of inefficient energy consumption links and carbon emission hotspots in production, which in turn restricts its deep decarbonization process.

[0076] The mass balance method only considers the quantitative changes in carbon dioxide emissions, treating the entire steel production process as a "black box" and ignoring the specific mechanism of carbon dioxide emissions caused by energy and material use. Therefore, it is difficult for steel companies to accurately identify specific process links with high carbon emissions and low production efficiency, and it is difficult to provide effective decision-making support for deep decarbonization. The main reason for this defect is the complexity of the steel production process, which makes it difficult to achieve a unified measurement method. The steel production process involves the conversion of materials such as ores, as well as the conversion of energy such as coal and electricity, and the energy and material quality and conversion efficiency of different links are different. The traditional mass balance method is usually measured in kg, but when analyzing the material and energy conversion of a certain process, difficult-to-explain measurement results often appear. For example, in the smelting process of iron ore to molten iron, multiple inputs and conversions such as iron ore, coal and electricity are involved. If it is measured simply in kg, a result such as "1kg of electricity" may appear, which is not only difficult to explain, but also easy to cause misunderstanding.

[0077] The value originates from the field of thermodynamics and is often used to measure the difference in work capacity of different energy sources. For example, 1 kJ of electrical energy has a higher work capacity than 1 kJ of thermal energy. The value can also be used to measure the quality of materials in the steel production process. For example, during the smelting process of iron ore, the iron content gradually increases, forming higher quality steel, which corresponds to the quality of the iron ore. The value keeps rising.

[0078] Therefore, in order to solve the defects of the existing calculation method in the steel production process, the embodiment of the present invention provides a method based on The carbon emission accounting method in the steel production process is The combination of carbon emission reduction value with energy and material flow accounting can reflect the flow and transformation of materials and energy in each process link, and can also accurately calculate carbon emissions.

[0079] This embodiment provides The method flow of carbon emission accounting method in steel production process is as follows: Figure 1 As shown, the following steps are included.

[0080] S101. Obtain energy data for each process step in the steel production process.

[0081] Specifically, the energy data obtained in the above steps include specific energy consumption data consumed in each process link in the steel production process, such as electricity and natural gas.

[0082] S102. Obtain energy according to the energy data. value.

[0083] Specifically, in the above steps, the energy types reflected by the energy data are classified into energy Energy types are mainly fossil fuels (coal, electricity, natural gas, etc.), chemical fuels The value indicates the maximum useful work that can be produced under given environmental conditions. The value can be expressed by Gibbs free energy, which is the difference between the free energy of fuel and combustion products during the combustion process. The energy in the steel production process can be obtained by the enthalpy change and entropy change of the combustion reaction during the combustion process. value.

[0084] S103, based on this energy The carbon emissions during steel production are obtained by calculating the value.

[0085] Specifically, carbon dioxide emissions in the steel production process are mainly caused by the use of fossil fuels, and the emission factor method is generally used to calculate carbon dioxide emissions.

[0086] In order to better illustrate the above embodiment, each of the above steps will be described in detail below.

[0087] In step S101, the process steps of the steel production process include coking, blast furnace, converter, electric furnace, etc. Figure 2As shown, energy data includes specific energy consumption (such as electricity, natural gas, etc.) of coking, blast furnace, converter, electric furnace and other process links, ensuring that the input and output of each process link are clearly visible. These data can be obtained in real time through online monitoring, production records and equipment sensors to ensure the accuracy and timeliness of the data and provide a data basis for subsequent calculations.

[0088] In the above step S102, the energy flow involved in the steel production process is first calculated. The energy types involved are mainly fossil fuels (such as coal, electricity, natural gas, etc.), chemical fuels The value indicates the maximum useful work that can be produced under given environmental conditions. The value can be expressed by Gibbs free energy (G), which is the difference in free energy between fuel and combustion products during the combustion process. The specific calculation formula is as follows:

[0089] Ex energy,i =ΔG = ΔH - T0ΔS;

[0090] Where, Ex energy,i For fuel value; ΔG is the change in Gibbs free energy of the combustion reaction, that is, the value; ΔH is the enthalpy change of the combustion reaction; T0 is the ambient temperature (usually in Kelvin, usually 298.15K); ΔS is the entropy change of the combustion reaction.

[0091] In this way, according to the specific combustion process, the specific calculation can be done by determining the combustion equation and finding the corresponding ΔH and ΔS value.

[0092] Optionally, in step S102 of this embodiment, in the actual calculation of the steel production process, the chemical fuel The value is usually slightly higher than its lower heating value (LHV), and the relationship between the two is relatively stable. Therefore, the LHV can be multiplied by the empirical coefficient to calculate the LHV of chemical fuels according to the approximate method. value, i.e. the energy used in steel production The specific calculation formula is as follows:

[0093] Ex energy,i ≈α i ×LHV i ;

[0094] Where, Ex energy,i For fuel value, α is the energy approximation Coefficient, LHV is lower heating value. The coefficients are shown in Table 1.

[0095] Table 1

[0096]

[0097] In the above step S103, the calculation basis of the emission factor method is to multiply the lower heating value LHV of the fuel by the carbon dioxide emission factor c, and the calculation formula is:

[0098] Carbon i =c i ×LHV i ;

[0099] Combined with the above steps, the approximate method is used to calculate the energy The formula for the value is:

[0100]

[0101] In the formula, Carbon i is carbon dioxide emissions, Ex energy,i For fossil fuels Value, c i 'Based on Emission factors for fossil fuel i after method correction.

[0102] Then, the new emission factor c' is expressed as:

[0103]

[0104] Carbon emissions from steel production p It can be expressed as:

[0105]

[0106] Then, the total carbon emissions during steel production is:

[0107]

[0108] This formula can fully reflect the carbon emission characteristics of different steel production processes p and different fossil fuels i in the steel production process. The value is used to uniformly measure the changes in its quality, and the carbon emissions of each process link are calculated in combination with the improved carbon emission factor; so that carbon emission accounting is no longer limited to total amount control, but is refined to each link, which is convenient for identifying high-emission areas and then formulating targeted improvement plans.

[0109] In addition, the present embodiment provides The carbon emission accounting method in the steel production process can also be used to calculate the conversion efficiency in the steel production process. The method flow of the conversion efficiency accounting method in the steel production process is as follows: Figure 3 As shown, the following steps are included.

[0110] S301. Obtain material data of each process link in the steel production process.

[0111] Specifically, the material data obtained in the above steps include specific materials consumed in each process link in the steel production process, such as iron ore, coal, and coke.

[0112] S302, according to the material data, obtain the material value.

[0113] Material The calculation of the value is based on the principle of thermodynamics, which is mainly divided into chemical and physics Two parts: Chemistry Evaluate the effective energy released when a material undergoes a chemical reaction, usually determined by thermodynamic properties such as enthalpy and entropy of formation; physical The energy requirement of the material from the environmental reference state (such as 25°C, 1atm) to the working condition is calculated, usually obtained by methods such as specific heat capacity integration. and physics Add them together to get the materials in the steel production process value.

[0114] S303, according to the material Value and energy Value, get the input of steel production process Value, Output Value and loss value.

[0115] According to the energy in the steel production process Values ​​and Materials The input, output and loss of the steel production process can be calculated by using the energy Energy Input Value and energy output Value, same, material Material Input Value and material output Value, based on energy input Value, material input Value, material output Value and energy output The input value of steel production process can be obtained Value, Output Value and loss value.

[0116] S304, based on the input value, the output Value and loss value to obtain the conversion efficiency in the steel production process.

[0117] The conversion efficiency in the steel production process, i.e. the output Value as a percentage of investment The percentage of the value can be calculated to obtain the conversion efficiency in the steel production process.

[0118] In order to better illustrate the above embodiment, the above steps will be described in detail below.

[0119] The process of steel production includes coking, blast furnace, converter, electric furnace, etc. Figure 2 As shown in the figure, material data includes specific material consumption (such as iron ore, coal, coke, etc.) of coking, blast furnace, converter, electric furnace and other process links, ensuring that the input and output of each process link are clearly visible. These data can be obtained in real time through online monitoring, production records and equipment sensors to ensure the accuracy and timeliness of the data and provide a data basis for subsequent calculations.

[0120] In steel production, The value of the material can be applied not only to the evaluation of the "input-conversion-output" process of fossil fuels, but can also be extended to raw materials such as iron ore and crude steel. The value is a method of evaluating the available energy of a material in a specified environment, which is used to reflect its degree of deviation from the environment. The calculation of the value is based on the principle of thermodynamics, which is mainly divided into chemical and physics Two parts: Chemistry Evaluate the effective energy released when a material undergoes a chemical reaction, usually determined by thermodynamic properties such as enthalpy and entropy of formation; physical The energy requirement of the material from the environmental reference state (such as 25°C, 1 atm) to the working condition is calculated, usually obtained by methods such as specific heat capacity integration.

[0121] In Chemistry In the calculation process, for each material, its chemical reaction formula must first be established. For example, for iron oxide in iron ore, it can be expressed in the form of oxides such as Fe2O3 and SiO2; for crude steel, the corresponding reaction can be established based on the main alloy components (carbon, silicon) and their content.

[0122] Based on the established chemical reaction formula, standard enthalpy and entropy are used to calculate the standard chemical Ex material，chemical，j , the calculation formula is as follows:

[0123] Ex material，chemical，j =∑n q (ΔH f,q -T0S q );

[0124] Where, Ex material，chemical，j Chemical properties of materials ;n q is the number of moles of each substance in the chemical reaction; ΔH f,q is the standard enthalpy of formation of each substance; S q is the standard entropy of each substance; T0 is the ambient temperature (usually in Kelvin, usually 298.15K). The standard chemical entropy of each chemical component can be calculated by the above formula. , and then add these values ​​to get the chemical .

[0125] physics ValueEx material，physical，j It is used to evaluate the energy required for materials to change from the environmental reference state (usually 25°C) to the process conditions (such as high temperature), mainly referring to the energy demand caused by changes in temperature and pressure. The specific heat capacity C is usually used. p The integral of the material is used to calculate the physical properties of the material at different temperatures. , the calculation formula is as follows:

[0126]

[0127] Where T0 is the ambient temperature; T is the final process temperature of the material; C p is the specific heat, usually a function of temperature. This integral can be calculated from a data table or numerically. If the specific heat data varies with temperature, the integral can be calculated piecewise to improve accuracy.

[0128] The final material Value is chemical ValueEx material，chemical，j and physics ValueEx material，physical，j The sum of:

[0129] Ex material,j =Ex material，chemical，j +Ex material，physical，j ;

[0130] Through the above steps, materials such as iron ore or crude steel can be obtained. This total The value reflects the total available energy carried by the material.

[0131] In the actual application process, the material in the above steps can also be calculated based on the empirical value method. The specific calculation formula is as follows:

[0132] Ex material,j ≈β j ×Mass j ;

[0133] Where, Ex material,j For material j Value, β is the material approximation Coefficient, Mass is the mass of the input material. The coefficients are shown in Table 2.

[0134] Table 2

[0135]

[0136] In order to obtain different energy i and material j After the values ​​are calculated, the input, output and loss processes of the different steel production processes in the above steps can be comprehensively calculated. The input, output and loss of the steel production process are as follows: Figure 4 shown.

[0137] For production process p, the input Ex input,p It can be expressed as:

[0138]

[0139] Accordingly, the output of production process p is Ex output,p It can be expressed as:

[0140]

[0141] At the same time, for each steel production process, there are the following Balanced equation:

[0142] Ex input,p =Ex output,p +Ex loss,p ;

[0143] So, LossEx loss It can be calculated as:

[0144] Ex loss,p =Ex input,p -Ex output,p .

[0145] Based on the above investment Value, Output Value and loss The conversion efficiency in the steel production process can be obtained by calculating the value. The calculation formula is:

[0146]

[0147] In summary, the embodiments of the present invention provide Carbon emission accounting method in steel production process The value is used to uniformly measure the quality change, and the carbon emission of each process link is calculated in combination with the improved carbon emission factor; the carbon emission accounting is no longer limited to total control, but is refined to each link, which is convenient for identifying high-emission areas and then formulating targeted improvement plans. This detailed accounting can not only intuitively display the carbon emission characteristics of each link, but also display the emission source of each link based on energy and material accounting, and support the adoption of precise emission reduction measures in specific processes. In addition, this method will also The combination of mass balance and energy and material flow accounting can reflect the flow and transformation of materials and energy in each process link. Specifically, first obtain the material data and energy data of each process link in the steel production process, including input data and output data. Based on the mass balance, calculate the materials and energy of each link in the steel production process, and obtain the energy of each link in the steel production process. Values ​​and Materials value. Then you can Value and energy Value, get the input of steel production process Value, Output Value, loss Value and comprehensive Conversion efficiency. Compared with the prior art, the present invention introduces The value establishes a unified measurement method for energy and materials in the steel production process, solves the measurement problems caused by different types of energy and materials in steel production, and realizes unified measurement of complex conversion processes. Using the value as a standardized indicator can avoid the problem of inability to directly compare each link in traditional methods, thereby improving the accuracy of accounting. A calculation method for the comprehensive conversion efficiency of the steel process flow has been established. By quantifying the comprehensive conversion efficiency of different process links, high-energy consumption and low-efficiency production links can be accurately identified. This method facilitates the optimization of energy use in the steel production process, reduces unnecessary energy losses, and promotes efficiency improvements in the production process.

[0148] In the embodiment of the present application, a method based on The carbon emission accounting system in the steel production process is used to implement the above-mentioned embodiments and preferred embodiments, which have been described and will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0149] The present application embodiment provides a Carbon emission accounting system in steel production process Figure 5 This embodiment of the present application provides a method based on The structural diagram of the carbon emission accounting system in the steel production process is shown in Figure 1. The system includes:

[0150] The first acquisition module 501 is used to acquire energy data of each process link in the steel production process;

[0151] The first calculation module 502 is used to obtain energy according to the energy data. value;

[0152] The second calculation module 503 is used to calculate the energy The carbon emissions during steel production are obtained by calculating the value.

[0153] In an optional embodiment, the system further includes:

[0154] The second acquisition module 504 is used to acquire material data of each process link in the steel production process;

[0155] The third calculation module 505 is used to obtain the material value;

[0156] The fourth calculation module 506 is used to calculate the Value and energy Value, get the input of steel production process Value, Output Value and loss value;

[0157] The fifth calculation module 507 is used to calculate the value, the output Value and loss value to obtain the conversion efficiency in the steel production process.

[0158] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0159] In this embodiment, based on The carbon emission accounting system for the steel production process is presented in the form of functional units, where the units refer to ASIC (Application Specific Integrated Circuit) circuits, processors and memories that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0160] The embodiment of the present invention also provides a computer device having the above Figure 5 Based on the A carbon emissions accounting system for the steel production process.

[0161] See also Figure 6 , Figure 6 is a schematic diagram of the structure of a computer device provided by an optional embodiment of the present invention, such as Figure 6 As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process instructions executed in the computer device, including instructions stored in or on the memory to display graphic information in a graphical user interface on an external input / output device (such as a display device coupled to an interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 6 A processor 10 is taken as an example.

[0162] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0163] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0164] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0165] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0166] The computer device also includes an input device 30 and an output device 40. The processor 10, the memory 20, the input device 30 and the output device 40 may be connected via a bus or other means. Figure 6 The example of connecting through bus is taken in the following.

[0167] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0168] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0169] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method based on A method for calculating carbon emissions in the steel production process is characterized by: The method comprises: Obtain energy data for each process in the steel production process; According to the energy data, energy value; Based on the energy The carbon emissions in the steel production process are obtained by calculating the value.

2. The method according to claim 1, characterized in that The method further comprises: Obtain material data for each process step in the steel production process; According to the material data, the material value; According to the material Value and energy Value, get the input of steel production process Value, Output Value and loss value; Based on the input Value, output Value and loss value to obtain the conversion efficiency in the steel production process.

3. The method according to claim 2, characterized in that The energy source The expression for the value is: Ex energy,i ≈α i ×LHV i ; Where, Ex energy,i For energy Value; α is the energy approximation coefficient, LHV is the lower heating value.

4. The method according to claim 3, characterized in that The materials The expression for the value is: Ex material,j ≈β j ×Mass j ; In the formula, For material j Value, β is the material approximation Coefficient, Mass is the mass of the input material.

5. The method according to claim 4, characterized in that According to the material Value and energy Value, get the input of steel production process Value, Output Value and loss Values, including: According to the energy Value, get energy input Value and energy output value; According to the material Value, get material input Value and material output value; According to the energy input Value, energy output Value, material input Value and material output Value, get the input of steel production process Value, Output Value and loss value; Among them, the input of the steel production process Value, the expression is: Output of the steel production process Value, the expression is: Losses in the steel production process Value, the expression is: Ex loss,p =Ex input,p -Ex output,p 。 6. The method according to claim 5, characterized in that The expression of the conversion efficiency is:

7. The method according to claim 6, characterized in that The carbon emissions during the steel production process include: According to the energy The carbon emissions in the steel production process are obtained by p , the expression is: In the formula, Carbon p is the carbon emission of the steel production process; c i is the CO2 emission factor of energy source i; According to the carbon emissions of steel production process p , the total carbon emissions of steel production are obtained as follows:

8. A method based on The carbon emission accounting system in the steel production process is characterized by: The system comprises: The first acquisition module is used to obtain energy data of each process link in the steel production process; The first calculation module is used to obtain energy according to the energy data. value; The second calculation module is used to calculate the energy based on the The carbon emissions in the steel production process are obtained by calculating the value.

9. The system according to claim 8, characterized in that The system further comprises: The second acquisition module is used to obtain material data of each process link in the steel production process; The third calculation module is used to obtain the material according to the material data. value; The fourth calculation module is used to calculate the Value and energy Value, get the input of steel production process Value, Output Value and loss value; A fifth calculation module is used for calculating the Value, output Value and loss value to obtain the conversion efficiency in the steel production process.

10. The system according to claim 9, characterized in that The fourth calculation module is specifically used for: According to the energy Value, get energy input Value and energy output value; According to the material Value, get material input Value and material output value; According to the energy input Value, energy output Value, material input Value and material output Value, get the input of steel production process Value, Output Value and loss value; Among them, the input of the steel production process Value, the expression is: Output of the steel production process Value, the expression is: Losses in the steel production process Value, the expression is: Ex loss,p =Ex input,p -Ex output,p 。

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