Method for diagnosing fluctuation reason of quality of coke

A technology for coke quality and coke, which is applied in the field of diagnosing the causes of fluctuations in coke quality, can solve problems such as rising coal blending costs and waste of high-quality resources, and achieve the effects of saving coal blending costs and reducing energy waste.

Active Publication Date: 2013-12-18
SHANXI TAIGANG STAINLESS STEEL CO LTD
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Problems solved by technology

[0002] The stability of coke quality is very important to the smooth operation of the blast furnace, so each coking enterprise generally sets control indicators for coke quality. Since coke quality fluctuations are inevitable in actual production, when the reasons for coke quality fluctuations are not clear , in order to reduce the fluctuation of coke quality, enterprises will increase the proportion of high-quality and high-priced coking coal to achieve the purpose of stable coke quality, resulting in the increase of coal blending costs and the waste of high-quality resources

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  • Method for diagnosing fluctuation reason of quality of coke
  • Method for diagnosing fluctuation reason of quality of coke

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Embodiment Construction

[0011] From 0-8:00 on February 27, 2013, the coke quality index of Shanxi Taigang Stainless Steel Co., Ltd. Coking Plant fluctuated for 5 consecutive shifts. It means that the coke particle size and diameter are larger than 40mm), and the coke agglomeration becomes smaller. The specific indicators are shown in the following table.

[0012] Coke quality index (Table 1)

[0013]

[0014] The various problems of coke during quality fluctuations are listed and the possible causes are analyzed, and the results are shown in the following table:

[0015]

[0016] In view of the reason of the coal blending structure, the vitrinite reflectance of the blended coal on the 27th was randomly checked. The results showed that the content of the low-metamorphic coal in the coal loaded on the 27th increased, and the coal containing the gas coal metamorphic degree was 3%. The results are as follows: figure 1 shown.

[0017] Schematic diagram of vitrinite reflectance distribution Graphic...

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Abstract

The invention belongs to the field of coal blending, and particularly relates to a method for diagnosing a fluctuation reason of quality of coke. The coke is measured, if any one or two of the particle size of the coke and the ash content of the coke is/are not in the defined range, vitrinite reflectance detection is carried out on the mixing coal of the coke, the result is recorded on a vitrinite reflectance distribution diagram with the abscissa as the reflectance range and the ordinate as the mass percent of a single coal in the overall mixing coal, so that the actual coal types of the mixing coal and the actual proportion of each coal type can be determined, and the actual proportion of each coal type is compared with the set proportion of the coal blending process so as to regulate the set proportion of the coal blending process. According to the method, the mixing coal generating coke of specified indicator can be allocated, so that the energy resource waste is reduced, and the cost of mixing coal is saved.

Description

technical field [0001] The invention belongs to the field of coal blending, in particular to a method for diagnosing the cause of coke quality fluctuation. Background technique [0002] The stability of coke quality is very important to the forward operation of blast furnaces, so each coking enterprise generally sets control indicators for coke quality. Since coke quality fluctuations are inevitable in actual production, when the reasons for coke quality fluctuations are not clear , In order to reduce the fluctuation of coke quality, the company will increase the proportion of high-quality and high-priced coking coal to achieve the purpose of stable coke quality, resulting in an increase in coal blending costs and a waste of high-quality resources. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is: in coke production, how to analyze the reasons under the condition of fluctuation of coke quality, so as to arrange suitable coal ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B57/04
Inventor 吴波屈秀珍齐洪涛刘昔跃贺佳
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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