METHOD FOR TESTING EXPANSIVITY OF COAL

• Main Authors: FUKADA KIYOSHI, ANYASHIKI TAKASHI, SHIMOYAMA IZUMI, YAMAMOTO TETSUYA, FUJIMOTO HIDEKAZU, SUMI HIROYUKI
• Format: Patent
• Language: English
• Published: 10.09.2009
• Subjects: CHEMISTRY; DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS; FUELS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LUBRICANTS; MEASURING; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICS; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TESTING

PROBLEM TO BE SOLVED: To provide a new method for testing expansivity for precisely measuring an expansion behavior of coal by upsizing a coal charging container for measurement, particularly in a radial direction, hereby duplicating the expansion behavior of coal in a chamber oven. SOLUTION: A method for testing expansivity of coal includes charging coal into a measuring coal charging container 9, housing an external container 11 in a heating furnace, the external container having the measuring coal charging container 9 loaded therein, and measuring the expansivity of the coal when the coal is heated. The method for testing expansivity of coal further includes using a microwave to heat the coal. Preferably, the measuring coal charging container 9 should have an inner diameter exceeding 12 mm, the measuring coal charging container 9 should be loaded into an insulating container 10 filled with the same coal as the coal whose expansivity is to be measured, the insulating container 10 should be loaded into the external container 11, the measuring coal charging container 9 should be loaded into the external container 11 filled with anthracite coal, and a material having a through path in upper and lower surfaces should be deposited on top of measuring coal. COPYRIGHT: (C)2009,JPO&INPIT