Abstract:

Crucible coking experiment without coking coal is carried out by taking the mixture of Xuzhou gas coal and Zaozhuang fat coal as basic coal material,and adding coke fines,lean coal and anthracite coal of various sizes.The coke optical texture,coke micro strength index and structure strength index of obtained crucible coke are measured and tested.The result shows that with the addition of inert materials,OTI of coke increases,while I+Mf+FF decreases.Among the three inert materials,addition of coke fines is the most effective way to improve coke micro strength and structure strength.The smaller the inert material size,the better the coke quality.