Coking Research for Blending with Datong Yungang Weak Caking Coal
CHONG Zhenyu
DONG Xiaochun
LIU Jianxun
Abstract：Based on the elemental and proximate analysis results of Datong Yungang coal and present coal blending scheme, the coking tests for blending with Yungang coal instead of a part of lean coal, 1/3 coking coal and gas coal were carried out. The influences of the coal fineness and proportioning on the cold-status strength, hot-status strength and reactivity of coke were investigated. The main conclusions are as follows:The cold-status strength and hot-status strength increased with the increase of the fineness of Yungang coal;With Yungang Coal instead of gas coal, the cold-status strength first increased and then decreased while hot-status strength decreased with proportioning increase; Instead of 1/3 coking coal and lean coal, the cold-status strength and hot-status strength of coke decreased with proportioning increase of yungang coal. Increasing the mixing quantity of fat coal and not larger than 3%Yungang Coal in coal blending, the quality of coke can be guaranteed. In a word, it will be beneficial for reducing sulfur and ash content in coke, expanding the coking coal resources, reducing the cost of coal blending.
Keywords：Datong Yungang coalweak caking coalcoal blendingleaning agent
Publication Date：2013-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 19-21 )