浮选精煤加压过滤机滤液处理方法研究  

Study on Filtrate Treatment Method of Floated Clean Coal Pressure Filter

作　　者：蒋富歌[1] 彭耀丽[1] 谢广元[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221116

出　　处：《煤炭工程》2014年第2期114-116,共3页Coal Engineering

基　　金：高等学校博士学科点专项科研基金资助项目(20110095120021);中央高校基本科研业务费专项资金资助项目(2010QNB08)

摘　　要：选煤厂浮选精煤加压过滤机滤液返回浮选使浮选系统煤泥水量增大,增大了浮选压力,而且大量细泥在浮选系统循环,恶化了浮选系统的分选效果。为合理处理滤液,改进煤泥水系统,提出了"浮选柱+快开压滤机"独立回收滤液的工艺,通过试验验证了该工艺的可行性。结果表明:加压过滤机滤液单独处理,既得到了不背灰的合格精煤,又大大减少了浮选系统煤泥水量,有效缓解浮选压力,改善浮选效果,提高精煤回收率。Sending filtrate of pressure filter back to flotation system brought problems to the flotation system, the flotation system is overburden as the feed quantity increases, and flotation effect degrades with the vicious circle of fine slime in flotation system. To recover clean coal in filter liquor and improve coal slurry treating process, a new independent filtrate recovery process with flotation column and quick - operating pressure filter was proposed. Feasibility of this process was proved through experiments, according to the results, this process could acquire qualified clean coal, reduce flotation feed quantity greatly and relieve flotation pressure, improve flotation effect and increase clean coal recovery.

关 键 词：加压过滤机滤液 浮选精煤 浮选柱 快开压滤机 

分 类 号：TD94[矿业工程—选矿]