FGX-1型复合式干选机分选效果影响因素分析  

Analysis of influencing factors of separation effect of FGX-1 compound dry separators

作　　者：张贵林[1] 于晓东 宋树磊 

机构地区：[1]中国矿业大学化工学院,江苏徐州221116 [2]唐山神州机械有限公司,河北唐山063001

出　　处：《选煤技术》2012年第6期20-23,共4页Coal Preparation Technology

摘　　要：通过引入发热量修正系数获得复合式干选机新的评价指标,该评价指标能够准确评价复合式干选机的分选性能。利用FGX-1型复合式干选机对50～0 mm混合粒级的原煤进行分选试验,结果表明:当原煤外水含量≤6%,矸石含量<30%,床面振幅为6～8 mm,振动频率为60～70 Hz时,评价指标K'值较大,分选效果较好。A new evaluation index of compound dry separator is obtained by introducing a revising index of calorific value, which can evaluate correctly the separation performance of compound dry separators. Separation tests of raw coal with 50 -0 mm size fraction by FGX - 1 compound dry separator were done. Results show that the separation effect is relatively good and the values are relatively great when the exte- rior water content of coal is smaller than 6% , the gangue content is less than 30% , the bed amplitude is between 6 -8 mm and the vibration frequency is in the range of 60 -70 Hz.

关 键 词：FGX-1型复合式干选机 分选效果 影响因素 评价指标 

分 类 号：TD942[矿业工程—选矿]