METHOD FOR IMPROVING BULK DENSITY OF CHARGING COAL INTO COKE OVEN BY BRIQUETTING TREATMENT

摘要

PURPOSE:To improve the bulk density of coal and reduce the variation in the bulk density distribution in a coke oven, by briquetting a coal for charging into the coke oven under specific conditions to keep a specific particle diameter distribution, and charging the resultant coal into the coke oven. CONSTITUTION:A mixed coal obtained by treating a coal for charging into a coke oven in a pulverizer or coal mixer, used in the treating process is without heating and kneading treatment briquetted in a compression briquetting machine at ordinary temperature to give a briquetted coal having such a retained particle size distribution as to give =20pts.wt. weight ratio particles having =6mm. particle diameter, which is then wholly charged through a usual coal feeding path into the coke oven. Thus, the average bulk density of the charged coal in the coke oven is improved, and the variation in the bulk density distribution in the coke oven is reduced.