对GB/T 15715—2005《煤用重选设备工艺性能评定方法》标准修订的建议  

Suggestions on revision of GB/T 15715—2005 《Coal Gravity Separating Equipment-Performance Evaluation》

作　　者：董禄[1] 王运来[1] 李正明[1] 李健刚[1] 王敏鸽[1] 李金华[1] 

机构地区：[1]唐山国华科技有限公司,河北唐山063020

出　　处：《煤质技术》2009年第4期28-30,共3页Coal Quality Technology

摘　　要：对GB/T 15715—2005中倒数第一个密度级的平均密度(Dmax)的3种测定方法进行了探讨。针对三产品重介质旋流器第二段分配曲线的正确绘制难度较大的状况,建议采用第二段旋流器数量效率、矸石带煤率、中煤带矸率作为三产品重介质旋流器的评定指标,以适应对高效率的重介质选煤设备工艺效果评定的需要,同时供将来标准修订时参考。Three methods for determination of average density （Dmax） in last density fraction of GB/T 15715 2005 were discussed. Drawing of secondary distribution curve of three product heavy medium cyclone contains a lot of difficulties. In order to satisfy the demand of evaluating the technical performance of coal gravity separating equipment and provide the reference for revising the standard, the quantity efficiency of secondary cyclone, the coal content of refuse, and the refuse content of middlings were advised to be evaluation indexes of three product heavy medium cyclone.

关 键 词：Dmax测定 分配曲线绘制 二段旋流器评定指标 

分 类 号：TD94[矿业工程—选矿]