| 煤泥水的絮凝沉降试验研究 |
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| 引用本文： | 李东颖,丁淑芳.煤泥水的絮凝沉降试验研究[J].华北水利水电学院学报,2009,30(3):99-102. |
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| 作者姓名： | 李东颖 丁淑芳 |
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| 作者单位： | 1. 华北水利水电学院,河南,郑州,450011
2. 黑龙江科技学院,黑龙江,哈尔滨,150027 |
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| 摘 要： | 针对选煤厂煤泥水难以处理的问题,通过对几个选煤厂煤泥水的絮凝沉降试验,研究了搅拌速度、PAM的用量、PAM的分子量、煤泥水的浓度及表面ζ电位对沉降效果的影响.结果表明：当煤泥水浓度不超过80 g/L时,按照PAM与干煤泥质量比为1∶10000加入PAM,进行搅拌速度为300-400 r/min的搅拌实验效果最好,并结合降低ζ电位的实验进一步探讨了煤泥絮凝机理.
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| 关 键 词： | 煤泥水 聚丙烯酰胺 絮凝沉降 |
Experiment Study on Coal Slurry Flocculation and Sedimentation |
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| LI Dong-ying,DING Shu-fang.Experiment Study on Coal Slurry Flocculation and Sedimentation[J].Journal of North China Institute of Water Conservancy and Hydroelectric Power,2009,30(3):99-102. |
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| Authors: | LI Dong-ying DING Shu-fang |
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| Affiliation: | LI Dong-ying , DING Shu-fang (1. North China Institute of Water Conservancy and Hydroelectric Power,Zhengzhou 450011, China; 2. Heilongjiang Institute of Science and Technology, Ha＇erbin 150027,China) |
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| Abstract: | Aiming at the problem of coal slurry treatment in coal separation plants,the affects of sedimentation are studied about stir intensity,flocculant quantity,PAM molecular weight,coal slurry concentration and ζ potential to subsidence effect by flocculation and sedimentation test of coal slurry from several coal separation plants.The result shows that,under the condition that the concentration of coal slurry is 80 g/L,the proportion of PAM and dry coal slurry is 1∶10 000,the speed of the stirrer is 300~400 r/min,the tests reach the best effect.And the mechanism of coal slurry flocculation is also discussed. |
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| Keywords: | coal slurry polyacrylamide flocculation and sedimentation |
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