凝灰岩煤泥水沉降试验研究

分析了高含量凝灰岩煤泥水的沉降,研究了搅拌时间、凝聚剂种类和用量、絮凝剂种类和用量、药剂体积比和pH对凝灰岩煤泥水沉降效果的影响。结果表明,当搅拌强度为100 r/min,搅拌时间1 min,V(CaCl2)∶V(1000万PAM)=1∶2,pH为8时,凝灰岩煤泥水沉降效果最好,沉降速度用上清液体积高度表示,为85 mL,上清液透光率达到91.4%。 Analyze the flocculation setting of high concentration tuff coal slurry.Investigate the effects of stirring time,flocculant and its amount,coagulant and its amount,volume ratio of reagents,pH on flocculation setting of tuff coal slurry.The results show that while the stirring speed is 100 r/min,stirring time is 1 minute,volume ratio of CaCl2 to ten million PAM is 1 ∶2,pH is 8,tuff coal slurry can get best result,at that moment setting velocity is 85 mL,light transmittance of supernatant is 91.4%