高灰尾煤制浆工艺的研究  

Study of slurry preparation from high-ash tailing

作　　者：杨巧文[1] 任艳娇[1] 赵璐炜[1] 陈思[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《煤炭加工与综合利用》2014年第5期47-50,7,共4页Coal Processing & Comprehensive Utilization

摘　　要：选用淮南新庄孜矿选煤厂尾煤进行制浆试验,考察添加剂浓度、搅拌时间、不同添加剂配比对水煤浆流变性的影响;使用添加剂941号,煤浆最高浓度可达72.2%;萘磺酸盐最佳用量为0.8%、搅拌时间大约为10 min,此时水煤浆粘度最低;磺化腐植酸钠比例较高时,浆体呈现假塑性,复配添加剂MN∶MH在4∶6以上时,可制得成本更经济的水煤浆。Tailing from Bagongshan Xinzhuangzhi Coal Preparation Plant chosen for study of slurry preparation; investigated were concentration of additive,mixing duration,influence from blending of different additives ay different proportion; with additive 941#,highest solid content being 72. 2%; the best dosage of naphthalene sulphonate salt being 0. 8%, mixing duration 10 min approximately; while at relatively high proportion of sulphonate sodium humic,the slurry being of pseudoplastic; blending of additives Mn∶ MHabove 4∶ 6,slurry of ever economic cost be prepared.

关 键 词：水煤浆 高灰尾煤 表观粘度 浓度 添加剂用量 搅拌时间 

分 类 号：TQ536[化学工程—煤化学工程]