A method for blending high volatile coking coal

A high-volatility, coking coal technology, applied in the coking oven, petroleum industry, etc., can solve the problems of coke cold strength and thermal performance, coke coking rate reduction, increase the amount of gas generation, etc., to improve coke quality and chemical products The effect of increasing yield and avoiding severe decline
CN105112083BActive Publication Date: 2017-10-17HBIS COMPANY LIMITED HANDAN BRANCH COMPANY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HBIS COMPANY LIMITED HANDAN BRANCH COMPANY
Publication Date
2017-10-17

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Abstract

The invention relates to a method for coking coal blending with high volatile content, and belongs to the technical field of coking coal blending. Including mixing each single type of coking coal, single type of coking coal includes: gas coal, gas fat coal, 1 / 3 coking coal, fat coal, coking coal, lean coal and lean coal, and the improvement is: each single type The ratio of coking coal is as follows: gas coal 0-5%, gas-fertilized coal 15%-23%, fat coal 0-8%, 1 / 3 coking coal 19-28%, coking coal 30%-48%, Lean coal 8-25%, lean coal 0-7%. The invention can control the volatile content of blended coal at 30% to 31%, and the post-reaction strength CSR is ≥ 66%, meeting the smelting requirements of blast furnaces with a size of 2000m3 and above; avoiding the serious decline in the quality of coke produced due to the increase in the proportion of gas coal and lean coal, At the same time, the amount of coke oven gas generation and the yield of chemical products have increased significantly, achieving a win-win effect of reducing coke output and increasing the profit of subsequent products on the premise of ensuring coke quality.
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Description

technical field

[0001] The invention relates to a method for coking coal blending with high volatile content, and belongs to the technical field of coking coal blending. Background technique

[0002] With the development of large-scale blast furnaces, higher requirements are put forward for the quality of coke, and the thermal reactivity and post-reaction strength indicators of coke are more concerned than ever. Batch coal is the raw material for coke production. It is made of single coking coals of different properties in a certain proportion. The properties of these single coals are quite different, and they play different roles in the coking process, and their prices also vary greatly.

[0003] 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. kind. The blending ratio of each single type of ...

Claims

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