COAL BRIQUETTES WITH HIGH STRENGTH AND METHOD FOR MANUFACTURING THE SAME

摘要

It provides a coal briquettes and a method of manufacturing the same by increasing the soft melt temperature range to improve the hot strength. The coal briquettes are charged into a molten gasifier in a molten iron manufacturing apparatus including i) a molten gasification furnace into which reduced iron is charged, and ii) a reducing gas providing the reducing iron to a molten gasifier and receiving a reducing gas from the molten gasifier. The method for producing coal briquettes includes i) mixing three or more types of coals, ii) providing a mixture of coal mixed with a binder, and iii) molding the mixture to produce coal briquettes. In the coal mixing step, the overlapping temperature range of the softening melting temperature range of the first coal and the softening melting temperature range of the second coal among the three or more types of coals may be 0 to 10 ° C.