METHOD OF MEASURING DILATATION OF COAL, METHOD OF ESTIMATING SPECIFIC VOLUME OF COAL, METHOD OF MEASURING ABILITY TO FILL INTER-PARTICLE SPACE, AND COAL BLEDING METHOD

摘要

A method of measuring a dilatation of a coal includes: charging a coal into a dilatometer tube; inserting a piston into the dilatation tube; heating the coal so that a rate of a temperature increase in the plastic stage of the coal is 6 °C/min or higher; measuring a displacement of the piston; and obtaining a dilatation of the coal from the displacement.