摘要
由于神府煤内在水分含量高且氧含量高,很难制得高浓度的水煤浆.通过粒度配比和分散剂复配等实验,研究其成浆工艺条件,得出神府煤三级级配粒度比为500目∶325目∶200目=5∶1∶4,复配添加剂月桂醇聚氧乙烯醚和木质素磺酸钠比为0.8∶0.8时,可以制备出黏度为1 020mPa.s,稳定性为15d,浓度为62%的较高浓度水煤浆.
Due to SF coal has high content of moisture and oxygen-containing groups, so it＇s difficult to obtain high-concentration coal-water slurry. In this paper, we have studied the preparation process conditions of coal-water slurry has particle classification and dispersant com- pound etc. Research has demonstrated that when the ratio of particle classification 500 mesh, 325 mesh and 200 mesh is 5 ： 1 ： 4, the ratio of dispersant of ethoxylated dodecylalcohol and sodium lignin sulfonate is 0.8 ： 0.8, the coal-water slurry has the lowest apparent viscosity for 1 020 mPa s, the best stability of 15 d and the higher concentration of 62%.
出处
《煤炭转化》
CAS
CSCD
北大核心
2012年第2期44-46,共3页
Coal Conversion
基金
神华集团科技攻关项目(SHIL4212/4)
关键词
粒度级配
分散剂
分散剂复配
静态稳定性
particle classification, dispersant, dispersant compound, static stability
