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A method of comprehensively using coal and rock indicators for coal source development

A technology of indicators and coal rocks, which is applied in the field of coal source development by comprehensively using coal and rock indicators, can solve problems such as the analysis and identification of coal types that cannot be mixed, achieve controllable coal blending costs, broaden the selection range, and optimize coal blending structures Effect

Active Publication Date: 2016-08-24
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Description
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AI Technical Summary

Problems solved by technology

The existing industrial analysis index evaluation method of coal type cannot effectively analyze and identify the mixed type of coal, so there are obvious deficiencies in the alternative development of coal resources

Method used

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  • A method of comprehensively using coal and rock indicators for coal source development

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Effect test

Embodiment

[0048] A new coal type of coking coal in Luliang area, which replaces the coal type being used is coking coal A. The feasibility determination process is as follows:

[0049] 1. Carry out coal rock analysis on the selected new coal and compare it with the coal being used. The reflectance and distribution results of vitrinite are shown in Table 1.

[0050] sample

reflectance value

standard deviation

type

<0.9

0.9-1.2

1.2-1.8

1.8-2.0

Luliang Coking Coal

1.424

0.083

single coal

0.0

0.0

100.0

0.0

In use coking coal A

1.468

0.092

single coal

0.0

0.0

100.0

0.0

[0051] According to the analysis of coal and rock indicators, Lvliang coking coal is a single type of coal, and its indicators are close to those of coking coal A in use.

[0052] 2. Analyze the coal quality index and compare it with the A index of coking coal in use. The results of routine index analysis are shown in Table 2. ...

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Abstract

The invention relates to a method for carrying out coal source development by comprehensively applying coal petrography indexes. The method comprises the following steps of: I, carrying out coal petrography analysis on a new coal type, and judging coal as a single coal type when reflectivity standard deviation is less than 0.10; II, analyzing the coal quality indexes on the coal, and comparing ash content, volatile content, sulfur content, a caking index G value and a colloidal layer thickness Y value with those of a coal type which is in use; III, evaluating the coking property of the new coal type by using an experimental coke oven, and comparing with a substituted coal type, wherein coke strength indexes include M40, M10, CRI and CSR; IV, substituting the new coal type for the coal type which is in use according to the proportion of 4%-18%, and experimenting two coal blending schemes by using two experimental coke furnaces, wherein the coke strength indexes include M40, M10, CRI and CSR; V, trying to use the new coal type on an industrial 7.63 m coke furnace, and inspecting the coke strength indexes including M40, M10, CRI and CSR. The method disclosed by the invention can be used for partially or wholly substituting the coal resource which is in use so as to widen the selecting range of the coal resource.

Description

technical field [0001] The invention relates to a method for developing coal sources by comprehensively using coal and rock indexes. Background technique [0002] With the continuous consumption and reduction of high-quality coking coal resources, the development of new coal resources and the partial or complete replacement of existing resources have increasingly become an important task for coking enterprises. With the diversification of coal resource procurement channels, many mine sites, coal quality, and large fluctuations appear more and more frequently, traditional industrial analysis indicators have been difficult to meet the requirements of comprehensive evaluation of coal resource performance. As a technical means that has been vigorously promoted and applied in recent years, coal rock analysis is playing an increasingly important role in coal quality identification and coal quality evaluation. Better use of coal and rock indicators to evaluate coal quality and rep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B57/04C10B57/00
CPCC10B57/04
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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