METHOD FOR BLENDING COALS COAL BLEND AND METHOD FOR PRODUCING COKE

摘要

It is possible to estimate the strength of the coke produced using the compounding material as a raw material by using physical properties which have not been considered in the past as an indicator and to thereby suppress the increase of the cost of raw materials for the compounding coke and to increase the coke strength, The present invention also provides a method of blending a blend for production. Coal of two or more items is blended to form a blend for coke production. When mixing two or more kinds of coal, the surface tension of the coal in each heat-treated item is used as a management index to determine the blending ratio of the coal item and the coal of the item.