摘要
研究了低变质粉煤制备型煤工艺对焦油产率的影响,系统讨论了膨润土作为黏结剂时,黏结剂含量、成型压力、水分和原煤粒度对焦油产率的影响,并得出制备型煤的最佳成型工艺条件.结果表明,在膨润土用量为5%,成型压力为40kN,水分为14%,粉煤粒度<0.28mm条件下,干馏所得焦油产率为9.2%,型焦抗压强度为600N/ball,达到气化型焦的标准.
The paper investigates the influence on coal tar yield during the preparation process for briquette with low rank pulverized coal. The important factors, which effect on the coal tar yield, include content of bentonite, forming pressure, moisture and particle size of coal. These factors are systematically discussed when using the bentonite as binder. The optimum con- ditions are as followed, content of bentonite is 5%, forming pressure is 40 kN, moisture content is 14%, and fine coal particle size is less than 0.28 mm. Under the optimum conditions, the coal tar yield is 9.2% and compressive strength of formed coke is 600 N/ball. It satisfied the standard of gasification behavior of formed coke.
出处
《煤炭转化》
CAS
CSCD
北大核心
2013年第2期71-73,共3页
Coal Conversion
基金
国家支撑计划项目(2009BAA20B02)
陕西省教育厅专项科研计划项目(12JK0590)
关键词
型煤
焦油产率
膨润土
低变质粉煤
coal briquette, coal tar yield, bentonite, low rank pulverized
