利用聚丙烯酰胺和聚合氯化铝对依兰气化厂附属选煤厂的煤泥水进行药剂制度的优化,试验结果表明:该厂煤泥水极易泥化,粒度偏细。采用无机药剂和有机药剂进行联合絮凝。浓度为66 g/L时,500 m L煤泥水的最佳药剂用量7~10 m L聚合氯化铝、2~3 m L聚丙烯酰胺。添加顺序为先添加无机药剂、后添加有机药剂。 Polyacrylamide and polyaluminum chloride were used to optimize the chemical system of slime water in the coal preparation plant affiliated to Yilan Gasification Plant. The experimental results show that the slime water in this plant is easy to muddy with fine grain size. Using inorganic agents and organic agents for joint flocculation. When the concentration was 66 g / L, the optimal dosage of coal slurry for 500 m L slurry was 7 ~ 10 m L PAC and 2 ~ 3 m L polyacrylamide. Add order to add inorganic agents, after adding organic agents.