Low-rank coal coking process

A low-rank coal and coking technology, applied in the field of coking process, can solve the problems of expensive raw materials for coking process, low-rank coal cannot be applied on a large scale, low economic benefit in the coking industry, etc. , The effect of not easy to powder
CN105400533AActive Publication Date: 2016-03-16BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
Publication Date
2016-03-16
Patent Text Reader

Abstract

The present invention discloses a low-rank coal coking process, which comprises: (1) crushing low-rank coal, mixing the crushed low-rank coal and an auxiliary agent, and carrying out stamp-charging molding on the raw material coal by using stamp-charging equipment; and (2) pushing the molded raw material coal into a coke oven, coking, and collecting the overflowed crude coal gas, tar and crude benzene mixture while obtaining the byproduct coke, wherein the coking temperature is controlled at more than 800 DEG C, the coking time is not less than 15 h, and the auxiliary agent is an organic binder with air isolated dry distillation weightlessness of less than 50% at a temperature of 850 DEG C. According to the present invention, with the low-rank coal coking process, the problems of low existing stamp-charging coke oven utilization rate and excess coking industry production capacity are solved, and the problem that the application of the low-rank coal is limited due to no large-scale industrial equipment is solved.
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Description

technical field

[0001] The invention relates to a coking process, in particular to a coking process using low-rank coal as a raw material, and belongs to the technical field of low-rank coal conversion. Background technique

[0002] Coal is the main energy source in my country, accounting for about 70% of the primary energy structure. In the long process of geological evolution, the formation of coal is affected by many factors, resulting in various types of coal. According to the structure and composition, coal is divided into three categories: lignite, bituminous coal and anthracite. Bituminous coal is divided into low-metamorphic bituminous coal and medium-metamorphic bituminous coal. Low-metamorphic bituminous coal is also called sub-bituminous coal, which is collectively referred to as "low-rank coal" together with lignite. . Low-rank coal is the product of the initial stage of coalification. It has the characteristics of low carbon content, high moisture, easy pulver...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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