MEASURING METHOD OF BULK DENSITY OF COAL

摘要

PURPOSE:To calculate bulk density simply with precision close to the actual furnace condition by charging a coal sample into a cylindrical sample vessel and compressing it with a piston in the vessel and measuring the relation between the applied pressure and the bulk density. CONSTITUTION:The coal sample of the quantity more than the volume of the sample vessel 2 is charged into the vessel 2 and the excessive sample of the upper surface of the vessel 2 is cut and the weight of the sample is weighed. This vessel 2 packed with the sample is loaded on a load cell 1 and the relation between the dropping distance of the piston 3 and the applied pressure is recorded with a recorder 5 by lowering the piston 3 at the specified speed. Since the packed volume of the sample is obtained from the dropping distance, the bulk density is calculated from the calculated sample weight in advance. Consequently, the bulk density for the applied pressure corresponding to the impressed force of the actual furnace is calculated immediately.