块煤仓使用外螺旋溜槽提高块率的实践  

Higher Percentage of Lump Coal Maintained by Use of Outer-Screw Chute at Lump Coal Bin in Practice

作　　者：屈飞[1] 张弘[1] 申永明[1] 

机构地区：[1]晋城煤业集团成庄矿洗选厂,山西省晋城市048021

出　　处：《选煤技术》2001年第6期39-41,共3页Coal Preparation Technology

摘　　要：针对成庄矿在地面块煤仓中成功地使用了钢制外螺旋溜槽,提高块率,做了深入的探讨,并对外螺旋溜槽的 形式及其煤流运动作了分析,介绍了使用外螺旋溜槽的经济效益。The paper has further discussed the steel-made outer-screw chute successfully used in ground surface coal bin at Chengzhuang Colliery thus maintaining higher percentage of lump coal and analysis is made on mode [(of the outer- screw chute and the motion of coal flow)(.)( The paper also shows the economic profit gained by use of )]this chute.

关 键 词：外螺旋溜槽 块率 限下率 块煤仓 煤流运动 洗煤厂 

分 类 号：TD94[矿业工程—选矿]