电场强化难沉降煤泥水处理的研究  

Study on the Treatment of Difficult Settling Slime Water Enhanced by Electric Field

作　　者：李文成 李明明 LI Wencheng;LI Mingming(School of Mining Engineering,Heilongjiang University of Science and Technology,Harbin 150022,China;School of Energy Industry,Shanxi Institute of Technology,Shuozhou 036000,China)

机构地区：[1]黑龙江科技大学矿业工程学院,黑龙江哈尔滨150022 [2]山西工学院能源产业学院,山西朔州036000

出　　处：《煤》2024年第3期22-26,共5页Coal

基　　金：黑龙江省自然科学基金(LH2019E088)。

摘　　要：针对煤泥水自然沉降耗时长、效果差的问题,使用自制电场沉降装置并采用单因素法考察电解质种类、电流强度、通电时间和pH值对煤泥水沉降效果的影响;在此试验的基础上借助软件进行响应面条件优化,获得的最佳条件是CaCl_(2)0.6 g、电流1.5 A、通电时间25 min、pH值9.4,此时煤泥水沉降效果的综合指标为1.32,证明沉淀效果良好。In view of the long time and poor effect of natural sedimentation of slime water,a self-made electric field sedimentation device was used and the single factor method was used to investigate the effects of electrolyte type,current intensity,current time and pH value on the sedimentation effect of slime water.On the basis of the test,the response surface conditions were optimized by using Design-Expert software.The optimal conditions were CaCl_(2)0.6 g,current 1.5 A,electrification time 25 min and pH 9.4.At this time,the comprehensive index of the settling effect of slime water was 1.32,which proved that the precipitation effect was good.

关 键 词：外加电场 煤泥水沉降 响应面优化 

分 类 号：TD98[矿业工程—选矿]