Method for evaluating quality of metallurgical coke for blast furnace, evaluation device, and electronic device

Abstract

The present application relates to the technical field of metallurgical coke quality evaluation, and particularly relates to a quality evaluation method, an evaluation device and electronic equipment for metallurgical coke used in blast furnaces. The evaluation method comprises the following steps: obtaining a first performance parameter of each performance index in a performance index set of current metallurgical coke used in a blast furnace; obtaining a second performance parameter of each performance index in the performance index set of historical metallurgical coke used in the blast furnace; and obtaining a smelting intensity evaluation result of the blast furnace based on the current metallurgical coke according to the first performance parameter and the second performance parameter. The evaluation device comprises an acquisition module and an evaluation module. The electronic equipment comprises a memory and a processor. The present application establishes a quality evaluation method for metallurgical coke used for evaluating the smelting intensity of a blast furnace, which is beneficial to blast furnace operators to improve the smelting intensity of the blast furnace, thereby improving the daily output of the blast furnace.

Description

Technical Field

[0001] This invention relates to the technical field of metallurgical coke quality evaluation, specifically to a method, device, and electronic equipment for evaluating the quality of metallurgical coke used in blast furnaces. Background Technology

[0002] Smelting intensity refers to the amount of coke consumed per cubic meter of effective blast furnace volume per day. Higher smelting intensity results in higher daily output; conversely, for blast furnaces of the same volume, higher daily output indicates higher smelting intensity. Coke acts as a heat source, reducing agent, carburizing agent, and structural framework within the blast furnace. The smelting intensity is closely related to the quality indicators of the coke. Under the development trend of energy conservation, carbon reduction, cost reduction, and efficiency improvement, it is necessary to formulate operating procedures adapted to blast furnaces based on different coke qualities to achieve high output and low consumption, and economical ironmaking.

[0003] The main quality indicators of coke include: ash content, volatile matter, fixed carbon, sulfur content, moisture, average particle size, crush strength (M40), abrasion resistance (M10), reactivity (CRI), and post-reaction strength (CSR). Given the continuous depletion of high-quality coking coal resources, it is difficult to ensure that every indicator of coke is within its optimal range during the coal blending and coking process. Therefore, establishing a coke quality evaluation method and using comprehensive scoring to guide blast furnace intensification and coking coal blending is of great significance.

[0004] Patent CN111401774A provides a comprehensive evaluation method for coke quality. It calculates an evaluation score by multiplying the difference between actual coke indicators and benchmark coke indicators by the influence coefficient of each indicator on the blast furnace coke ratio. This score is used for optimizing coal blending to reduce the blast furnace coke ratio. Patent CN113555073A provides a comprehensive evaluation method for blast furnace coke quality. The score obtained from this method can be used to classify coke for use in different levels of blast furnaces. However, none of the above coke quality evaluation methods can reflect the smelting intensity of the blast furnace, which is detrimental to blast furnace operators in improving smelting intensity. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing coke quality evaluation methods, which cannot reflect the smelting intensity of the blast furnace and are not conducive to blast furnace operators improving the smelting intensity.

[0006] Therefore, the present invention provides a method, device and electronic equipment for quality evaluation of metallurgical coke for blast furnaces.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] A method for quality evaluation of metallurgical coke for blast furnaces includes the following steps:

[0009] Obtain the first performance parameter of each performance index in the set of performance indexes of the current metallurgical coke used in the blast furnace;

[0010] Obtain the second performance parameter of each performance index in the set of performance indexes of historical metallurgical coke used in the blast furnace;

[0011] Based on the first performance parameter and the second performance parameter, the smelting intensity evaluation result of the blast furnace based on the current metallurgical coke is obtained.

[0012] Furthermore, the performance indicators in the set of performance indicators include one or more of the following: ash content, sulfur content, crush resistance, abrasion resistance, reactivity, post-reaction strength, and average particle size.

[0013] Furthermore, for each performance metric, the first performance parameter is the actual value of the performance metric, and the second performance parameter is the maximum value and the minimum value of the performance metric.

[0014] Further, obtaining the smelting intensity evaluation result of the blast furnace based on the current metallurgical coke according to the first performance parameter and the second performance parameter includes:

[0015] For each performance indicator, a score for that performance indicator is obtained based on its first and second performance parameters.

[0016] Iterate through all performance metrics in the set of performance metrics to obtain the individual metric scores for each performance metric.

[0017] The comprehensive score of the current metallurgical coke is obtained based on the scores of all individual indicators.

[0018] Based on the comprehensive score, the smelting intensity evaluation result of the blast furnace based on the current metallurgical coke is obtained.

[0019] Furthermore, for each performance indicator, obtaining the individual indicator score based on the first and second performance parameters of that performance indicator includes:

[0020] For each performance indicator, the individual indicator score is obtained using a preset formula 1 based on the first and second performance parameters of that performance indicator.

[0021] Formula 1 is:

[0022]

[0023] Furthermore, the comprehensive score of the current metallurgical coke obtained based on the scores of all individual indicators includes:

[0024] Based on the scores of all the individual indicators, the comprehensive score of the current metallurgical coke is obtained using the preset formula 2.

[0025] Formula 2 is as follows:

[0026]

[0027] Where Y is the overall score of metallurgical coke.

[0028] Furthermore, obtaining the smelting intensity evaluation result of the current metallurgical coke based on the comprehensive score includes: the relationship between the smelting intensity and the comprehensive score is as follows:

[0029] Based on the comprehensive score, the smelting intensity evaluation result of the current metallurgical coke is obtained by using the preset correspondence between the comprehensive score and smelting intensity; wherein, in the correspondence between the comprehensive score and smelting intensity, the higher the comprehensive score, the higher the smelting intensity.

[0030] The present invention also provides a quality evaluation device for metallurgical coke used in blast furnaces, comprising:

[0031] The acquisition module is used to acquire the first performance parameter of each performance index in the set of performance indexes of the current metallurgical coke used in the blast furnace;

[0032] The acquisition module is also used to acquire the second performance parameter of each performance index in the set of performance indexes of historical metallurgical coke used in the blast furnace.

[0033] The evaluation module obtains the smelting intensity evaluation result of the blast furnace based on the current metallurgical coke, according to the first performance parameter and the second performance parameter.

[0034] The present invention also provides an electronic device, comprising:

[0035] The system includes a memory and a processor, which are interconnected. The memory stores computer instructions, and the processor executes the aforementioned method for evaluating the quality of metallurgical coke for blast furnaces by executing the computer instructions.

[0036] The present invention also provides a computer-readable storage medium storing computer instructions for causing the computer to execute the above-described method for evaluating the quality of metallurgical coke for blast furnaces.

[0037] The technical solution of this invention has the following advantages:

[0038] 1. In this application, the smelting intensity evaluation result of the blast furnace based on the current metallurgical coke is determined by obtaining the first performance parameter of each performance indicator in the current set of performance indicators for metallurgical coke used in the blast furnace and the second performance parameter of each performance indicator in the historical set of performance indicators for metallurgical coke used in the blast furnace. This application establishes for the first time a metallurgical coke quality evaluation method for evaluating the smelting intensity of a blast furnace, which is beneficial for blast furnace operators to improve smelting intensity and thus increase the daily output of the blast furnace.

[0039] 2. This application establishes a quality evaluation method for metallurgical coke used in blast furnaces, which can be used to compare the quality of coke of different grades. It focuses on the correlation between the quality evaluation results of metallurgical coke and the smelting intensity of the blast furnace, providing a reference for blast furnace operators to improve the daily output of the blast furnace. Attached Figure Description

[0040] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0041] Figure 1 This is a flowchart illustrating the quality evaluation method for metallurgical coke used in blast furnaces in Embodiment 1 of the present invention.

[0042] Figure 2 This is a schematic diagram of the quality evaluation device for blast furnace metallurgical coke in Embodiment 3 of the present invention;

[0043] Figure 3 This is a schematic diagram of the electronic device in Embodiment 4 of the present invention;

[0044] Figure 4 This is a correlation diagram between the comprehensive score of metallurgical coke and the daily output of blast furnace in the experimental examples of this invention. Detailed Implementation

[0045] The following embodiments are provided to better understand the present invention and are not limited to the preferred embodiments described. They do not constitute a limitation on the content and scope of protection of the present invention. Any product that is the same as or similar to the present invention, derived by any person under the guidance of the present invention or by combining the features of the present invention with other prior art, falls within the protection scope of the present invention.

[0046] For experiments not specifically described in the examples, the procedures or conditions should be followed according to the conventional experimental procedures described in the literature in this field. Reagents or instruments whose manufacturers are not specified are all commercially available conventional reagent products.

[0047] Example 1

[0048] This embodiment provides a method for quality evaluation of metallurgical coke used in blast furnaces. Figure 1 This is a flowchart illustrating the quality evaluation method for metallurgical coke used in blast furnaces in Embodiment 1 of the present invention. Figure 1 As shown, the evaluation method includes the following steps:

[0049] S1: Obtain the first performance parameter of each performance index in the set of performance indexes of the current metallurgical coke used in the blast furnace.

[0050] Specifically, the performance indicators in the set of performance indicators include one or more of the following: ash content, sulfur content, crush resistance (M40), abrasion resistance (M10), reactivity (CRI), post-reaction strength (CSR), and average particle size.

[0051] Specifically, the first performance parameter is the actual value of the performance index.

[0052] Specifically, reactivity (CRI) is a stability index that measures the ability of coke to react with CO2 carbon at high temperatures; post-reaction strength (CSR) measures the ability of coke to maintain its high-temperature strength when subjected to CO2 and alkali metal erosion.

[0053] S2: Obtain the second performance parameter of each performance index in the set of performance indexes of historical metallurgical coke used in the blast furnace.

[0054] Specifically, the second performance parameter is the maximum value and the minimum value of the performance index.

[0055] S3: Based on the first performance parameter and the second performance parameter, obtain the smelting intensity evaluation result of the blast furnace based on the current metallurgical coke.

[0056] Specifically, obtaining the smelting strength evaluation result of the blast furnace based on the current metallurgical coke according to the first performance parameter and the second performance parameter includes:

[0057] S301: For each performance indicator, obtain the individual indicator score based on the first and second performance parameters of that performance indicator.

[0058] Specifically, for each performance indicator, the individual indicator score is obtained based on the first and second performance parameters of that performance indicator, including:

[0059] For each performance indicator, the individual indicator score is obtained using a preset formula 1 based on the first and second performance parameters of that performance indicator.

[0060] Formula 1 is:

[0061]

[0062] S302: Traverse all performance indicators in the set of performance indicators to obtain the individual indicator scores for each performance indicator.

[0063] Specifically, for each performance indicator, a single-item score for each performance indicator is obtained using the preset formula 1.

[0064] S303: Based on the scores of all individual indicators, obtain the comprehensive score of the current metallurgical coke.

[0065] Specifically, the comprehensive score for the current metallurgical coke, obtained based on the scores of all individual indicators, includes:

[0066] Based on the scores of all the individual indicators, the comprehensive score of the current metallurgical coke is obtained using the preset formula 2.

[0067] Formula 2 is as follows:

[0068]

[0069] Where Y is the overall score of metallurgical coke.

[0070] S304: Based on the comprehensive score, the smelting strength evaluation result of the blast furnace based on the current metallurgical coke is obtained.

[0071] Specifically, obtaining the smelting intensity evaluation result of the current metallurgical coke based on the comprehensive score includes: the relationship between the smelting intensity and the comprehensive score is as follows:

[0072] Based on the comprehensive score, the smelting intensity evaluation result of the current metallurgical coke is obtained by using the preset correspondence between the comprehensive score and smelting intensity; wherein, in the correspondence between the comprehensive score and smelting intensity, the higher the comprehensive score, the higher the smelting intensity.

[0073] Example 2

[0074] This embodiment provides a quality evaluation method for metallurgical coke used in blast furnaces. The evaluation method is consistent with that in Embodiment 1. This embodiment focuses on a 5000m³ blast furnace coke. 3 The quality of the seven types of metallurgical coke used in the blast furnace will be evaluated, specifically:

[0075] The first performance parameter of each performance index in the set of performance indexes of the seven metallurgical cokes that the blast furnace will use is shown in Table 1; the seven metallurgical cokes are denoted as No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, and No. 7 respectively;

[0076] Table 2 shows the second performance parameter of each performance index in the set of historical metallurgical coke performance in the blast furnace.

[0077] Based on the first and second performance parameters, the individual index scores for each performance indicator are calculated and shown in Table 3.

[0078] Based on the scores of all individual indicators, the comprehensive score of the current metallurgical coke is calculated as shown in Table 4.

[0079] Based on the comprehensive score in Table 4, the blast furnace is judged according to the smelting intensity of the current metallurgical coke. The result is: the comprehensive score ranking of the seven metallurgical cokes is: No. 1 < No. 2 < No. 3 < No. 4 < No. 5 < No. 6 < No. 7. Therefore, the smelting intensity ranking of the blast furnace when using the seven metallurgical cokes is: No. 1 < No. 2 < No. 3 < No. 4 < No. 5 < No. 6 < No. 7. So, the blast furnace with No. 7 metallurgical coke has the highest daily output.

[0080] Table 1

[0081]

[0082] Table 2

[0083]

[0084] Table 3

[0085]

[0086] Table 4

[0087]

[0088]

[0089] Example 3

[0090] Corresponding to Examples 1-2, this example provides a quality evaluation device for metallurgical coke used in blast furnaces. Figure 2 This is a schematic diagram of the quality evaluation device for blast furnace metallurgical coke in Embodiment 3 of the present invention, as shown below. Figure 3 As shown, the quality evaluation device for metallurgical coke used in blast furnaces in Embodiment 3 of the present invention includes an acquisition module 21 and an evaluation module 22. The acquisition module 21 is used to acquire a first performance parameter for each performance indicator in the performance indicator set of the current metallurgical coke used in the blast furnace; the acquisition module 21 is also used to acquire a second performance parameter for each performance indicator in the performance indicator set of the historical metallurgical coke used in the blast furnace. The evaluation module 22 is used to obtain an evaluation result of the blast furnace's smelting intensity based on the current metallurgical coke, according to the first performance parameter and the second performance parameter.

[0091] Specifically, the quality evaluation device for blast furnace metallurgical coke provided in this embodiment further includes a calculation module 23. The calculation module 23 is used to obtain a single-item score for each performance indicator based on its first and second performance parameters; the calculation module 23 is also used to iterate through all performance indicators in the performance indicator set to obtain single-item scores for all performance indicators; the calculation module 23 is further used to obtain a comprehensive score for the current metallurgical coke based on all single-item scores. The evaluation module 22 is used to obtain an evaluation result of the blast furnace's smelting intensity based on the current metallurgical coke based on the comprehensive score.

[0092] Example 4

[0093] Corresponding to Examples 1-2, this embodiment provides an electronic device. Figure 3 This is a schematic diagram of the electronic device in Embodiment 4 of the present invention, as shown below. Figure 3 The electronic device in Embodiment 4 of the present invention includes a memory 32 and a processor 31. The memory 32 and the processor 31 are interconnected. The memory 32 stores computer instructions. The processor 31 executes the computer instructions to perform the above-mentioned quality evaluation method for metallurgical coke for blast furnaces.

[0094] Processor 31 can be a central processing unit (CPU). Processor 31 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations of the above types of chips.

[0095] The memory 32, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules. The processor 31 executes various functional applications and data processing by running the non-transitory software programs, instructions, and modules stored in the memory 32, thereby realizing the quality evaluation method for metallurgical coke for blast furnaces in the above embodiments 1-2.

[0096] The memory 32 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created by the processor, etc. Furthermore, the memory 32 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. The memory 32 may optionally include memory remotely located relative to the processor, which can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0097] Example 5

[0098] Corresponding to Embodiments 1-2, Embodiment 5 of the present invention provides a computer-readable storage medium storing computer instructions for causing the computer to execute the quality evaluation method for blast furnace metallurgical coke of Embodiments 1-2.

[0099] Test case

[0100] To verify the accuracy of the evaluation method provided in this application, the seven types of metallurgical cokes evaluated in Example 2 were respectively fed into a 5000m³ solution in Example 2. 3 Ironmaking was carried out in a blast furnace of type 1, maintaining consistent blast furnace operating conditions when seven types of metallurgical coke were used in production. The daily blast furnace output was statistically analyzed when using the seven types of metallurgical coke. A graph was plotted with the comprehensive score of the seven types of metallurgical coke as the x-axis and the daily blast furnace output as the y-axis to verify the correlation between the comprehensive score and the daily blast furnace output. The statistical results are shown in Table 5, and the correlation graph between the comprehensive score and the daily blast furnace output is shown in [reference needed]. Figure 4 .

[0101] Table 5

[0102]

[0103] As shown in Table 5, the daily output of the blast furnace using the seven types of metallurgical coke is ranked as follows: No. 2 < No. 1 < No. 3 < No. 4 < No. 5 < No. 6 < No. 7, which is basically consistent with the ranking of the comprehensive score. No. 7 metallurgical coke has the highest daily output.

[0104] Reference Figure 4 It can be seen that the comprehensive score of metallurgical coke is strongly correlated with the daily output of blast furnace. Overall, the comprehensive score of metallurgical coke and the daily output of blast furnace are linearly correlated, with a correlation coefficient of R. 2 =0.93. The higher the comprehensive score, the higher the daily output of the blast furnace, that is, the higher the comprehensive score, the higher the blast furnace smelting intensity.

[0105] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A method for evaluating the quality of metallurgical coke used in blast furnaces, characterized in that, Includes the following steps: Obtain the first performance parameter of each performance index in the set of performance indexes of the current metallurgical coke used in the blast furnace; Obtain the second performance parameter of each performance index in the set of performance indexes of historical metallurgical coke used in the blast furnace; Based on the first performance parameter and the second performance parameter, the smelting strength evaluation result of the blast furnace based on the current metallurgical coke is obtained; The performance indicators in the set of performance indicators include one or more of the following: ash content, sulfur content, crush resistance, abrasion resistance, reactivity, post-reaction strength, and average particle size; For each performance metric, the first performance parameter is the actual value of the performance metric, and the second performance parameter is the maximum value and the minimum value of the performance metric. The step of obtaining the blast furnace smelting strength evaluation result based on the current metallurgical coke according to the first performance parameter and the second performance parameter includes: For each performance indicator, a score for that performance indicator is obtained based on its first and second performance parameters. Iterate through all performance metrics in the set of performance metrics to obtain the individual metric scores for each performance metric. The comprehensive score of the current metallurgical coke is obtained based on the scores of all individual indicators. Based on the comprehensive score, the smelting intensity evaluation result of the blast furnace based on the current metallurgical coke is obtained; The comprehensive score for the current metallurgical coke, obtained based on the scores of all individual indicators, includes: Based on the scores of all the individual indicators, the comprehensive score of the current metallurgical coke is obtained using the preset formula 2. Formula 2 is as follows: Where Y is the overall score of metallurgical coke.

2. The method for quality evaluation of metallurgical coke for blast furnaces according to claim 1, characterized in that, For each performance indicator, the individual indicator score is obtained based on the first and second performance parameters of that performance indicator, including: For each performance indicator, the individual indicator score is obtained using a preset formula 1 based on the first and second performance parameters of that performance indicator. Formula 1 is:

3. The method for quality evaluation of metallurgical coke for blast furnaces according to claim 1, characterized in that, The process of obtaining the smelting intensity evaluation result of the current metallurgical coke based on the comprehensive score includes: the relationship between the smelting intensity and the comprehensive score is as follows: Based on the comprehensive score, the smelting intensity evaluation result of the current metallurgical coke is obtained by using the preset correspondence between the comprehensive score and smelting intensity; wherein, in the correspondence between the comprehensive score and smelting intensity, the higher the comprehensive score, the higher the smelting intensity.

4. A quality evaluation device for blast furnace metallurgical coke using the quality evaluation method according to any one of claims 1-3, characterized in that, include: The acquisition module is used to acquire the first performance parameter of each performance index in the set of performance indexes of the current metallurgical coke used in the blast furnace; The acquisition module is also used to acquire the second performance parameter of each performance index in the set of performance indexes of historical metallurgical coke used in the blast furnace. The evaluation module obtains the smelting intensity evaluation result of the blast furnace based on the current metallurgical coke, according to the first performance parameter and the second performance parameter.

5. An electronic device, characterized in that, include: A memory and a processor are interconnected, the memory stores computer instructions, and the processor executes the computer instructions to perform the quality evaluation method for metallurgical coke for blast furnaces as described in any one of claims 1-3.

6. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to perform the quality evaluation method for metallurgical coke for blast furnaces as described in any one of claims 1-3.

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