过热蒸汽下煤系黄铁矿磁性强化研究  

Research on magnetism enhancement of pyrite in coal under overheating steam atmosphere

作　　者：徐世辉[1] 李延锋[1] 陈文刊[1] 訾涛[1] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221008

出　　处：《洁净煤技术》2010年第6期45-48,共4页Clean Coal Technology

摘　　要：对西山煤电集团煤样进行热处理实验研究,在高温水蒸气气氛下、热解温度在400～700 ℃之间,利用自制热解装置热解预处理煤样,预处理后的煤样用自制PM-C30型圆筒磁滤器磁选脱硫研究,主要研究热解温度对煤粉磁选脱硫效果的影响。发现提高热解温度对磁选脱硫效果有利,在500℃时脱硫效果最好,此时的脱硫率为56.86%,与原煤脱硫率相比提高了40.49%;对于西山煤来说,热解-磁选脱硫技术能够有效脱除无机硫,但是对有机硫脱除效果不佳。Do heat treatment experiments taking the Xishan Coal and Electricity Group coal as samples, using selfpyrolysis equipment at high temperature steam atmosphere, pyrolysis temperature 400 - 700 ℃ thermal decompose pretreatment coal samples, research the magnetic desulfurization of pretreatment coal sample with homemade PM - C30 cylindrical magnetic filter. The results show that increasing the pyrolysis temperature on the magnetic desulfurization can improve desulfurization efficiency especially at 500 ℃, the desulfurization rate is 56.86%, and coal desulfurization rate is improved 40.49% compared with raw coal. For Xishan coal, the thermal solution - magnetic select desulfurization technology can effectively remove inorganic sulfur, but the organic sulfur removal ineffective.

关 键 词：热解预处理 磁选 脱硫率 

分 类 号：TQ530.2[化学工程—煤化学工程] TD94[矿业工程—选矿]