Abstract
This process invented in Yawata Technical Reserch Center of Nippon Steel Corporation can be easily apply to the existing coke plant by the addition of Coal briquetting equipments.
This process effects the excellent improvement in coking properties of charged Coal.
This report explains about the development of this process, that is, briquette mixing ratio, homogeneous mixing method of Coal and briquette, selection of the briquette machine and the layout of these equipments, and the actual effects to coal blending ratio on the operation results for two years.
According to this process, when 30% of the briquette are mixed to the normal charging coal, coke strength Index (DIN15050 Index) rises 2 to 4%. If coke strength should be keeped to the same level, about 10% of the heavy caking coal could be exchange for non caking coal in normal charging coal.
