Research on Coking Test with High Volatile Matter 1/3 Coking Coal and Blending Coal

The 1/3 coking coal and gas coal from Jiangzhuang Mine as well as the 1/3 coking coal(caking index ranging from 70~75),from Tianzhuang Mine were applied to the micro structural analysis on the industrial index,coal and rock components and signal coal coking.The analysis showed that the 1/3 coking coal from Jiangzhuang Mine had a low metamorphism degree;high volatile matter,coke misconstrue with lot different isotropic structure.The coal quality had the gas coal features.The 1/3 coking coal and gas coal were be applied with the blending coal for coking.A study and comparison was conducted on the blending coal quality and the coke structure performance.The results showed that the 1/3 coking coal and gas coal from Jiangzhuang Mine would have the same affected to the coke quality.When the blending coal percentage low,the coke quality would be better.When the blending percentage based on the conventional blending percentage with 1/3 coking coal,the coke quality would get worse obviously.Thus the 1/3 coking coal based on the gas coal blended would be more rational.