摘要
通过对煤泥密度组成和可浮性的分析,当灰分要求11%以下,浮选精煤产率最大理论值达到42.85%,多次浮选精煤产率能达到38.71%,同时由单因素试验和正交试验结果可知,当柴油使用量为455 g/t,杂醇使用量为45 g/t时,矿浆浓度为80 g/L,叶轮转速为1 600 r/min,充气量0.25 m3/m2·min时,精煤产率能达到36%左右,能解决目前重介系统为浮选系统"背灰"的难题。
Based on the analysis of density composition and floatability of slime,the maximum theoretical value of clean coal yield is 42.85%, when the ash content below 11%. The clean coal yield of continuous flotation process will reach at 38.71%. And according to the result of single factor experiment and orthogonal experiment, when the dosage of diesel oil and fusel is 455 g/t and 45 g/t, the concentration of the slime is 80 g /L,impeller speed is 1 600 r/min, inflatable amount is 0.25 m3/m2·min, the clean coal yield arrival at about 36%. Therefore, it is possible to solve the difficulty that the dense medium system to undertake the high ash of flotation system.
出处
《煤炭技术》
CAS
北大核心
2015年第8期297-299,共3页
Coal Technology
关键词
可浮性
顺序评价试验
药剂比例
条件因素
正交试验
floatability
sequence evaluation experiments
reagent proportion
conditional factors
orthogonal experiment
