Coal coking blending method

A technology of coking coal and coking coal, which is applied in coking ovens, petroleum industry, solid fuels, etc., can solve the problems of quantitative coal blending and the inability to accurately evaluate and use the coal quality of a single type of coking coal, so as to achieve accurate coal blending and improve The effect of coke quality

Inactive Publication Date: 2007-12-05
WUHAN IRON & STEEL (GROUP) CORP
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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a coking coal blending method, which overcomes the shortcomings of the prior art that cannot quantitatively blend the

Method used

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Embodiment Construction

[0027] The coking coal blending method of the present invention comprises the steps of mixing individual coking coals; the single coking coals include: gas coal, gas fat coal, fat coal, 1 / 3 coking coal, coking coal, lean coal, etc.; each single coal The bonding index G and thickness Y of the colloidal layer are in line with the classification indicators in the corresponding national standards.

[0028] The characteristic intervals of the vitrinite reflectance distribution and the concentration of the characteristic intervals of each single coking coal are:

[0029] Gas fat coal: R max The characteristic interval is 0.55-0.75%, and the concentration of this interval reaches 50-80%.

[0030] Fat Coal: R max The characteristic interval is 0.85-1.10%, and the concentration of this interval reaches 50-70%,

[0031] 1 / 3 Coking Coal: R max The characteristic interval is 0.70-0.95%, and the concentration of this interval reaches more than 55%.

[0032] Coking coal: R max The cha...

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Abstract

The present invention is coking blend method with gas coal, and different kinds of coking coal with required vitrinite reflectance distribution are blended. The blended coals include gas-fat coal 5-10 wt%, fat coal 5-20 wt%, 1/3 coking coal 30-45 wt%, coking coal 30-45 wt% and lean coal 10-18 wt%. The method of the present invention has reasonable utilization of the coking coal resource, accurate coal blending and high coke quality.

Description

technical field [0001] The invention relates to the technical field of coking coal blending, in particular to a coking coal blending method. Background technique [0002] my country's coking coal is mainly divided into gas coal, gas fat coal, 1 / 3 coking coal, fat coal, coking coal, lean coal and lean coal. Except for gas coal and lean coal, other coal types are commonly used for coking coal blending. The blending ratio of each coking coal is determined by each unit according to its own coal consumption and experience. So far, there is no quantitative rule to follow to produce coke of specified quality. [0003] With the increasing shortage of coking coal resources, the quality of coking coal has become more complicated, and the traditional method of judging the quality of a single coking coal and blending coking coal has been limited, causing misleading use of coking coal and making coking coal blending work increasingly difficult. This is mainly due to the fact that the e...

Claims

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Application Information

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IPC IPC(8): C10B57/04C10L5/04
Inventor 薛改凤陈鹏魏松波陈强张前香项茹周学鹰宋子逵刘尚超
Owner WUHAN IRON & STEEL (GROUP) CORP
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