煤岩配煤的试验研究

Test and study on coal blending of coal petrography

通过40kg小焦炉试验,探求了煤岩指数(CBI、SI)与焦炭指标M25、CSR之间的关系。试验表明,平均反射率R与机械强度M25、反应后强度的相关性明显。煤岩指数不仅可以预测焦炭的机械强度和反应后强度,还可以通过调整CBI值,使其接近最佳配比,为减少主焦煤用量,降低配煤炼焦成本开辟了新途径。

Through 40kg small coke oven test,the relationship between coal petrographic indexes（CBI and IS） and coke indexes M25 and CSR is studied.The test shows that the relativities between the average reflectivity R and mechanical strength M25 and CSR are obvious.The coal petrographic index can not only predict the mechanical strength and CSR of coke,but also can make it approach optimized coal blending ratio through the adjustment of CBI value.In order to reduce the using amount of major coking coal and lower the costs of coal blending and cokemaking,a new way is developed.