一种特征煤代替肥煤的配煤炼焦试验

在对特征煤基础特性分析的基础上，用特征煤替代部分肥煤和气煤进行了40 kg小焦炉及4.3 m顶装焦炉炼焦试验，结果表明，特征煤代替肥煤配量控制在20%以内，焦炭质量变化不大，热态强度略有改善，在常规顶装焦炉上用10%～15%的特征煤代替肥煤炼焦是可行的。增配10%特征煤、相应减少肥煤配量8%、气煤2%，可生产出高强度一级冶金焦（M40=84.3%、M10=7.2%，CRI=23.5%、CSR=69.7%），降低配煤成本19.1元/t。

Coal Blending and Coking Test Replaced Fat Coal by a Characteristic Coal

On the basis of analyzing the features of a characteristic coal, the coking test was done replaced part of fat coal and gas coal in 40 kg small coke oven and 4.3 m top charge coke oven. The results showed that the characteristic coal instead of fat coal proportioning control within 20%, the coke quality change is not big, hot strength improves somewhat. With 10%-15% of the characteristic coal instead of fat coal and coking coal in top charge coke oven is feasible. Blending 10%the characteristic coal and relevantly reducing fat coal 8%and gas coal 2%produced metallurgical coke with high strength level （M40=84.3%, M10=84.3%, CRI=23.5%, CSR=69.7%）, and reduced the cost of coal blending 19.1 Yuan/t.