潮湿煤炭水分对气流分级效果的影响  

The Affection of Wet Coal'moisture on the Efficiency of Pneumatic Classification

作　　者：孙乾 蒋善勇[2] 章新喜[2] 张军华[2] 于凤芹[2] 刘炯天[2] 

机构地区：[1]永城煤电集团有限责任公司,河南永城476600 [2]中国矿业大学,江苏徐州221008

出　　处：《洁净煤技术》2007年第2期26-29,共4页Clean Coal Technology

基　　金：国家高技术研究发展计划(863)项目(2003AA529300)

摘　　要：利用自行设计制备的新型潮湿煤炭分级设备,进行了潮湿煤炭外在水分对气流分级效率的影响研究,在外在水分为6%时可以获得总分级效率82．92%、分级精度0．61,在外在水分为10%仍然可以获得总分级效率77．02%、分级精度0．57。在外在水分很高的情况下采用本设备仍然可以获得理想的分级效果。A new apparatus for wet coal classification were designed, some experiments have been done to explore the efficiency on pneumatic classification of the wet coal＇s moisture, In the condition of 6%, the classification efficiency achieved 82. 92% with the classification precision 0. 61, when the surface moisture is 10%, the efficiency achieved 77.02% with the precision 0. 57. An ideal efficiency can be achieved by using this apparatus when the surface moisture is very high.

关 键 词：潮湿煤炭 气流分级 分级效率 分级精度 

分 类 号：TQ051.84[化学工程]