永明煤矿选煤厂煤泥水系统技术改造  

Technical transformation of the coal slurry water system of Yongming Coal Preparation Plant

作　　者：孙明福 纪东东 SUN Mingfu;JI Dongdong(Shaanxi Y ongming Coal Mine Co.Ltd.,Yan'an 717300,China;Tangshan Research Institute Co.Ltd.,China Coal Technology&Engineering Group,Tangshan 063012,China;Hebei Province Coal Preparation Engineering&Technology Research Center,Tangshan 063012,China)

机构地区：[1]陕西永明煤矿有限公司,陕西延安717300 [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》2022年第1期79-83,共5页Coal Preparation Technology

摘　　要：针对煤泥水分偏高,压滤系统压滤时间过长的问题,永明煤矿选煤厂对现有的煤泥水处理系统进行了工艺改造,通过分流实现压滤机入料的不同,产生两种煤泥产品;引进超高压压滤机代替原有压滤设备,并对改造前后压滤机滤饼进行了XRD、水分分析。结果表明:改造后煤泥水分降低至15.40%,发热量由4 MJ/kg提升至11 MJ/kg,达到客户需求,有效增加了选煤厂经济效益。For tackling the problems regarding the high moisture of coal slime and excessively long working cycle of the filter pressing system,technical reform of the existing slurry water treatment system is made by Yongming Mine Coal Preparation Plant by taking the following two approaches:splitting the slurry flow to allow the filter press system to treat two separate feed materials to produce two different slime products,and replacing the existing filter presses with introduced ultrahigh-pressure ones.XRD analysis of the cake prod-ucts obtained before and after the technical reform indicates that the moisture of the slime product is re-duced to a level as low as 15.40%,and its calorific value goes up from4 MJ/kg to 11 MJ/kg,well meet-ing the requirement of users,yielding as a result a favorable economic result for the plant.

关 键 词：煤泥水处理 煤泥水系统 超高压压滤机 煤泥水分 

分 类 号：TD946.2[矿业工程—选矿]