DZSN3028型三质体高频筛在彭庄选煤厂的应用  

Application of the DZSN30283-mass high-frequency screen at Pengzhuang Coal Preparation Plant

作　　者：蒋孝勇 纪东东 JIANG Xiaoyong;JI Dongdong(Shandong Energy Linyi Mining Group Corporation Ltd.,Linyi 276000,China;Tangshan Research Institute Co.Ltd.,China Coal Technology&Engineering Group,Tangshan 063012,China;Hebei Province Coal Separation Engineering and Technology Research Center,Tangshan 063012,China)

机构地区：[1]山东能源临沂矿业集团有限责任公司,山东临沂276000 [2]中煤科工集团唐山研究院有限公司,河北唐山063012 [3]河北省煤炭洗选工程技术研究中心,河北唐山063012

出　　处：《选煤技术》2021年第5期59-63,共5页Coal Preparation Technology

摘　　要：针对精煤磁选尾矿分级脱泥系统效果不佳,设备故障率高,导致粗精煤泥灰分高的问题,彭庄选煤厂在对精煤磁选尾矿分选回收工艺和设备进行研究分析的基础上,确定了采用DZSN3028三质体高频筛对精煤磁尾分级脱泥降灰系统进行改造。改造结果表明:DZSN3028三质体高频筛的应用使粗精煤泥灰分由10.92%降至8.18%,解决了重介精煤“背灰”的问题,提高了精煤产率。The cleaned coarse slime is rather high in ash due to poor performance of the clean coal magnetic tailings classification-desliming system and high equipment failure rate. Through analysis of the magnetic tailings separation and recovery processes and equipment used, work is made on renovation of the magnetic tailings classification-desliming and ash reduction system by using the DZSN3028 3-mass high-frequency screen. Application of the renovated system has led to reduction of ash of clean coarse slime from 10.92% to 8.18% and a rise of yield of clean coal, and the plant′s heavy medium separation system is no longer required to reduce the ash of its clean coal product down to an unnecessarily low level.

关 键 词：煤泥分级 DZSN3028型三质体高频筛 小筛分试验 脱泥降灰 粗精煤泥灰分 

分 类 号：TD946.2[矿业工程—选矿]