摘要
利用Setaram微量热仪、DCAT21接触角测定仪、表面张力测定仪和Leica电子显微镜等仪器研究了乳化煤油、煤油的性质以及对煤泥的作用,进行了浮选实验.研究结果表明,乳化煤油的粒径、在水中的分散性、与煤泥的润湿热、改变煤泥的接触角以及降低气液界面张力等方面均优于煤油;当获得相同的精煤产率时,乳化煤油的耗量只是煤油耗量的1/3;当药剂耗量相同时,乳化煤油的浮选速度比煤油的浮选速度快,精煤产率比煤油的高7.38%,精煤灰分比煤油的低0.98%.研究证明,乳化煤油浮选的选择性和浮选效率均比煤油高,药耗量比煤油低.
The setaram calorimeter, the contact angle electronic microscope were used to study the natures of Batch flotation tests were carried out, The results show sibility in water, the wetting heat with slime, changing gauge DCAT21, the surface tension apparatus and the Leica emulsified kerosene and kerosene and their effects on slime. that the particle diameter of emulsified kerosene, the dispercontact angle and decreasing gas-solution interfacial tension and so on are all better than those of kerosene. The consumption of emulsified kerosene is only one-third of that of kerosene when equivalent yields of clean coal are obtained, The flotation speed of emulsified kerosene is faster than that of kerosene, the yield of clean coal of emulsified kerosene is higher than that of kerosene by 7.38 % and the ash content of clean coal of emulsified kerosene is lower than that of kerosene by 0, 98 % when equivalent amounts of the two reagents are used in the flotation process, The study shows that flotation selectivity and efficiency of emulsified kerosene are all higher than those of kerosene and the consumption of reagent is lower than that of kerosene.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2008年第1期89-93,共5页
Journal of China Coal Society
基金
国家自然科学基金资助项目(50274036)
黑龙江省教育厅骨干教师创新计划资助项目(1055G039)
关键词
乳化煤油
浮选速度
浮选效率
药耗量
emulsified kerosene
flotation speed
flotation efficiency
consumption of reagent
