The Experiment Research On Coking Coal Of Wisco

In order to evaluate comprehensively and scientifically the performance of Wiscocoking coal, this study is based on the Wisco segmentation criteria of coal, selected11class representative coal which are fully analyzed, meanwhile, from the microscopicview, to analyze the formation characteristic of coal. In combination with20kgtest-oven, it is showed that the Wisco coking coal is multiply, complex and unstableperformance and mixes seriously.This study is to analyze the mean maximum reflectance and coke quality, and itis concluded that Rmaxis within the scope of1.05%～1.25%,the coke strength ishigher, according to the experiment of petrographic constituent of Wisco coking coal,the Vitrinite content is higher, the exinite content is lesser, the inertinite content ismoderate. By the statistics of coal maceral, and calculating live idle than, regardlessof the metamorphic degree of coal, the active component of coal are higher than inertcomponent, the live idle than of the Wisco coking coal are all within1～3,combinedlive idle than of coal with coke quality, it is showed that the coke strength afterreaction is higher when the live idle than within the range of1.40~1.80,while theratio is higher than1.90,the coke quality is lower. According to the quantitativeanalysis of coke optical organization, it is concluded that the coke breaking strengthand the OTI index of coke is a linear relationship, compared the coke strength withthe index of OTI, it is not a good linear relationship.According to the performance of the single coal, it is concluded that it isnecessary to combine with the actual production ratio, to make use of the idle thanequation F (x)=∑fi*xi, and the distribution range of reflectivity to formulate sevenschemes, the experiment shows that the appropriate ratio of coal can get higherstrength coke, so to make coke quality is better, it is necessary to make the coalblending reflectivity distribution range within the scope of1.05%~1.25%, live idlethan within1.40~1.80.