极细粒煤选择性双向絮凝脱硫降灰实验研究  

Desulphurization and Deashing of Ultrafine Coal Using Selective Bilateral Flocculation

作　　者：戚家伟[1] 朱书全[1] 解维伟[1] 姚春彦[1] 

机构地区：[1]中国矿业大学化学与环境工程学院,北京100083

出　　处：《中国矿业大学学报》2005年第2期156-159,共4页Journal of China University of Mining & Technology

基　　金：国家自然科学基金项目(50074033)

摘　　要：介绍了选择性双向絮凝分选原理,根据该原理研究了极细粒煤泥深度脱硫降灰技术,分析了煤样粒度、非极性油与分散剂用量对选择性双向絮凝分选效果的影响,结果表明:使用该技术对极细粒煤泥分选后,可使其灰分降到1%以下,可燃体回收率达90%以上(最高值达94.57%),产率达69.77%.脱硫时,可将硫分从3%降到0.4%以下,而且脱硫的同时可以脱灰.Principle of selective bilateral flocculation (SBF) was introduced. The SBF technology for desulphurizing and deash ultrafine coal was developed. Influences of particle size, non-polar oil, and dispersant on selective bilateral flocculation were analyzed. Having been treated by using this technology, the clean ultrafine coal is obviously improved in quality, with an ash content of less than 1%, a recovery of combustible matter of 90%, a yield of 69.77%. In addition, the content of sulfur of ultrafine coal can be reduced from 3% to 0.4%.

关 键 词：细粒煤 降灰 煤泥 分选效果 分选原理 硫分 回收率 脱硫 选择性 煤样粒度 

分 类 号：TD94[矿业工程—选矿] TD942