摘要
采用选择性絮凝剂,对煤中可燃体与非可燃体进行分离,称为选择性絮 凝。笔者对大屯、八一、大武口等5个选煤厂和煤矿的极细粒煤泥进行了大量的 试验,证明该法可作为极细粒煤泥的分选方法,并具有较好的选择性。经分选, 一般精煤灰分为12-13％,最低为5.73％,可燃体回收率达90％以上,两产品 之间灰分差一般在50％左右,效果较好。因此,是一种较有前途的方法,可用 在分级浮选中,作为极细粒煤泥的分选方法。
It is known as selective flocculation to use selective flocculent to separate the combustible from non-combustible material. The authors have done a number of selective flocculation separation tests to ultrafine coal which were taken from the coal preparation plants of Dai-Tun, Ba-Yi etc. It is shown that the method has good selectivity and can be used to separate ultrafine coal. After selective separation the ash content of clean coal may reach 12-13%; the lowest one is 5.73%; and the recovery of combustible product is over 90%. The ash content differences between the two products is 50% or so. It is promising to use the above technique in the flotation system for ultrafine coal separation.
出处
《中国矿业大学学报》
EI
CAS
CSCD
北大核心
1993年第1期54-61,共8页
Journal of China University of Mining & Technology
关键词
细粒
煤泥
分选
絮凝剂
选煤
selective folcculation, flocculent, separation
