CAJ | 학술논문

分别采用六偏磷酸钠、羧甲基纤维素钠（CMC）作为分散剂,对夹河煤、开滦煤进行分散试验,以自制水煤浆体系黏度大小为表征方法,验证其分散效果;并经由浮选实验结果验证分散处理之后的煤泥浮选效果。结果表明,两种分散剂均使各分散体系的黏度值有所增加,达到了分散煤泥絮团的目的。经六偏磷酸钠分散后,夹河煤和开滦煤的精煤灰分及回收率,在一定范围内均有所提高,但是规律性不强;CMC分散性很好,但因其与捕收剂之间具有排斥作用,难以浮选出精煤,不可用于煤泥浮选浆体分散。
분별채용륙편린산납、최갑기섬유소납（CMC）작위분산제,대협하매、개란매진행분산시험,이자제수매장체계점도대소위표정방법,험증기분산효과;병경유부선실험결과험증분산처리지후적매니부선효과。결과표명,량충분산제균사각분산체계적점도치유소증가,체도료분산매니서단적목적。경륙편린산납분산후,협하매화개란매적정매회분급회수솔,재일정범위내균유소제고,단시규률성불강;CMC분산성흔호,단인기여포수제지간구유배척작용,난이부선출정매,불가용우매니부선장체분산。
The author conducted dispersion experiments for Jiahe and Kailuan coal respectively, using sodium hexametaphosphate, sodium carboxymethyl cellulose （CMC） as dispersants. The dispersion effect was verified by viscosity of CWS, and the result of coal flotation after decentralization verified by the flotation experiment. The result~ showed that： both the dispersants had increased viscosities of the dispersions, reaching the purpose of dispersing sludge flocculate. After beins dispersed by sodium hexametaphosphate, both Jiahe and Kailuan clean coal ashes, recoveries were improved within a certain range, but had no regularity; because of the repulsion be- tween CMC and the collector, the clean coal was difficult to float out, though it had better dispersion. So it could not be used as slime - flocculate dispersants of flotation.