主催: 社団法人 日本エネルギー学会 石炭科学部会, 社団法人 日本エネルギー学会 コークス工学研究部会
共催: 化学工学会 エネルギー部会, 日本学術振興会 石炭・炭素資源利用技術第148委員会, 日本エネルギー学会 重質油部会, 岐阜大学
会議名: 第47回石炭科学会議
回次: 47
開催地: 長良川国際会議場
開催日: 2010/09/21 - 2010/09/22
p. 68-69
Grindability and combustion characteristics of low HGI coal on blended condition with bituminous coal are evaluated. HGI(Hardgrove Grindability Index), defined by JIS M8801, is standard evaluation method for grindability of coal. However, this method is inapplicable to blended condition with low HGI coal. When the blended coal of high HGI coal and low HGI coal is pulverized at the same time, it is observed that the high HGI coal with high fuel ratio is pulverized selectively and the unburned ratio increases. Therefore, as for using low HGI coal with low fuel ratio and high HGI coal, it is suggested that these coals are pulverized separately and mixed in the boiler.
