%0 Journal Article
%T -(+)型浮选机的设计与应用       -
%A 张鹏
%J 洁净煤技术
%D 2014
%X 针对选煤厂存在的原生细煤泥含量大,精煤灰分高、回收率低等问题,在借鉴XJM-S型浮选机结构的基础上,开发了一种带有中矿箱、阶梯形布置的XJM-S28(3+2)型浮选机。介绍了XJMS28(3+2)型浮选机的结构特点和工作原理,以开滦集团钱家营矿业分公司选煤厂为例,对比分析了两台设备不同工艺(粗选—精选和一次浮选)的工业应用情况。结果表明:两台浮选机入料灰分相近,采用精选工艺时,602/3浮选机精煤灰分为11.19%,可燃体回收率为67.47%;采用一次浮选时,602/2浮选机精煤灰分为12.65%,可燃体回收率为76.86%;两台浮选机综合浮选精煤灰分为12.35%,满足生产指标要求。精选工艺可有效排除高灰细泥,降低灰分,提高精煤产率。XJM-S28(3+2)型浮选机既能实现入浮煤泥的一次浮选,最大程度回收精煤,也能实现浮选精煤的二次浮选,降低精煤灰分,达到产品结构的优化。 The increasing native fine coal in coal preparation plant led to high ash content,low recovery. On the basis of XJM-S type flotation machine structure,the coal preparation plant develope a new XJM-S( 3 + 2) type flotation machine which has a mine box and is stair-steeping. Describe its structural characteristics and working principle. Taking Qianjiaying coal preparation plant as example,compare the industrial application of 602 /3 and 602 /2 XJM-S( 3 + 2) type flotation machine,which respectively adopt rougher-cleaner process and primary flotation. The results show that,with similar ash of feed coal,the ash of clean coal and combustible of 602 /3 is 11. 19 percent and67. 47 percent,while that of 602 /2 is 12. 65 percent and 76. 86 percent. The comprehensive ash of clean coal is 12. 35 percent. The first process can resolve the existing problems of coal preparation plant. XJM-S( 3 + 2) type flotation machine can realize primary flotation and secondary flotation
%K 浮选机
%K 中矿箱
%K 粗选
%K 精选
%K 精煤灰分
%K 可燃体回收率 flotation machine
%K mine box
%K roughing
%K cleaning
%K ash of clean coal
%K combustible recovery
%U http://www.jjmjs.com.cn/WKD/WebPublication/paperDigest.aspx?paperID=001f10f4-7d42-4604-a62d-8ec23d72bd80