黑龙江科技学院学报2012，Vol.22Issue(6)：553-557,5.
用于中低温热解的低阶烟煤型煤的制备
Preparation of briquette from low rank bituminous coal used for medium-low temperature pyrolysis
摘要
Abstract
Preparation of briquette with high thermal strength from low rank bituminous coal for medium-low temperature pyrolysis means a reduction in environmental pollution and an improvement in the efficiency of low rank bituminous coal utilization.This paper describes the preparation of briquette from Dongrong long flame coal with special mould by hydraulic machine in the presence of coal tar,and the investigation into the influences of briquetting pressure,amount of coal tar and water on the specifications of briquette,coupled with the characterization of the micro-structure of briquette by scanning electron microscope.The results show that thermal strength of briquette increases with the increase of amount of coal tar and increases with the increase of briquetting pressure,followed by decrease.The amount of water also has some effect on the strength of briquette.The tars,capable of wetting the surface of coal particle and filling up the space between coal particles,perform a better adhesion effect.The briquette,prepared with processing parameters of 10% tars,13% water and briquetting pressure of 63 MPa,exhibits the optimal strength and shows thermal strength,cold compressive strength,thermal stability,and falling strength up to 536.4 N/block,691.3 N/block,97.98% and 99.49%,respectively,fulfilling the need of medium-low temperature pyrolysis.关键词
低阶烟煤/型煤/热强度/中低温热解/粉煤Key words
low rank bituminous coal/briquette/thermal strength/medium-low temperature pyrolysis/coal fines分类
化学化工引用本文复制引用
党钾涛,温振华,杨芊,王劲草,曹俊雅,解强..用于中低温热解的低阶烟煤型煤的制备[J].黑龙江科技学院学报,2012,22(6):553-557,5.基金项目
国家高技术研究发展计划（863计划）项目 （）
