气化灰渣分级分选提质试验研究  

Experimental study on upgrading of gasification slag through classification and separation

作　　者：高少鹏 江润平 王治帅 孙卫东 GAO Shaopeng;JIANG Runping;WANG Zhishuai;SUN Weidong(Weihai Haiwang Cyclone Co.,Ltd.,Weihai 264203,China)

机构地区：[1]威海市海王旋流器有限公司,山东威海264203

出　　处：《选煤技术》2022年第4期53-57,共5页Coal Preparation Technology

摘　　要：为实现固态灰渣的合理有效利用,减少灰渣的土地占用和环境污染问题,采用高效分级筛精细分级、高效螺旋分选机分选工艺分别对气化灰渣进行了分选提质试验。试验结果表明:高效分级筛筛上物料灰分为32.96%,产率为41.18%,综合筛分效率为82.58%;高效螺旋分选机对>0.125 mm粒级物料的分选效果良好,可使精矿灰分降至22.35%。在后期工业应用中,可考虑采用高效螺旋分选机+高效分级筛联合工艺对气化灰渣进行提质处理。For realizing comprehensive utilization of gasification slag,less occupation of land area and reduction of environmental pollution,test is made on upgrading of the slag using high-efficiency fine sizing screen and spiral separator.Test results show that the screen can work remarkably well with an overall efficiency of 82.58%and on ash and yield of the screen's oversize material being 32.96%and 41.18%respectively;the spiral separator is well fit for treating the>0.125 mm feed,and the ash of cleaned product can be reduced to 22.35%.It is proposed that in future industrial operation,the use of a combined process made up by spiral separator plus high-efficiency sizing screen can be considered.

关 键 词：气化灰渣利用 分选提质 高效分级筛 高效螺旋分选机 精矿灰分 精矿产率 

分 类 号：TD94[矿业工程—选矿] TQ536.4[化学工程—煤化学工程]