Coking coal quality classification method and coking coal blending method involving same

A technology of coking coal and coal blending, applied in coking ovens, petroleum industry, etc., can solve the problems of not being able to meet the needs of use, the classification of coking coal is not accurate enough, and cannot be used well, so as to achieve optimal matching and reasonable classification , The effect of resource optimization

Pending Publication Date: 2019-02-01
SHANDONG TIEXIONG XINSHA ENERGY CO LTD
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Problems solved by technology

[0002] Fatty coal can adjust the rheology and expansion of blended coal in coal blending and coking. It can be blended with a certain amount of weakly viscous coking coal, and at the same time provide a certain granular structure to support the thermal properties of coke. According to the Chinese coal classification standard (GB 5751-2009 ), dry ash-free base volatile matter Vdaf > 10.0-37.0%, cohesive index G value > 85, colloidal layer maximum thickness Y value > 25.0mm is classified as fat coal, but because the quality of coking coal is not only affected by geological Influenced by age, geographical environment, coal-forming conditions and other factors, the quality of coking coal classifi

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[0020] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0021] The present invention provides a technical solution, a coal quality classification method for coking coal, comprising the following steps:

[0022] 1) Determine the indicators that affect the coking property of coking coal: the coking property of coking coal is determined by using the dry ash-free volatile matter, the determination of the Oya expansion degree b, the average maximum reflectance of vitrinite, the maximum fluidity of Gibsonian and the optical structure of coke index;

[0023] 2) Determination of dry ash-free volatile matter in a single coal, determination of Aurora expansion b, average maximum ref...

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Abstract

The invention discloses a coking coal quality classification method. The method includes steps: 1) determining indexes having influences on coking coal cokeability, to be more specific, taking dry ash-free basis volatiles, determined Audibert-Arnu dilation degree b, vitrinite average maximum reflectivity, Kirschner's maximum mobility and coke optical texture structure as the indexes for determining coking coal cokeability, so that appearance limitation of existing classification indexes can be overcome, reasonability and accuracy in coking coal are achieved, application optimization is realized to give full play to functions of coking coal. In addition, by application of the Audibert-Arnu dilation degree index to the coking coal utilization technique and the compound coal utilization technique, coking coal quality characteristics are deeply mined, and optimal and reasonable resource application is realized.

Description

technical field [0001] The invention relates to the technical field of coking coal blending, in particular to a coal quality classification method for coking coal and a participating coking coal blending method. Background technique [0002] Fatty coal can adjust the rheology and expansion of blended coal in coal blending and coking. It can be blended with a certain amount of weakly viscous coking coal, and at the same time provide a certain granular structure to support the thermal properties of coke. According to the Chinese coal classification standard (GB 5751-2009 ), dry ash-free base volatile matter Vdaf > 10.0-37.0%, cohesive index G value > 85, colloidal layer maximum thickness Y value > 25.0mm is classified as fat coal, but because the quality of coking coal is not only affected by geological Influenced by age, geographical environment, coal-forming conditions and other factors, the quality of coking coal classified as fat coal according to the national sta...

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Application Information

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IPC IPC(8): C10B57/04
CPCC10B57/04
Inventor 吴盛海撒玉虎黄保玺王景涛张华闯孟凡凯韩清徐艳芳
Owner SHANDONG TIEXIONG XINSHA ENERGY CO LTD
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