盘式加压过滤机用滤布的再生实验研究  

Experimental study on the recycling of filter cloth for disc pressure filter

作　　者：孟令冰[1] 谭蔚[1] 杨世亮[2] 汪洋[1] 刘颖[1] 王越[2] 崔直 

机构地区：[1]天津大学化工学院,天津300072 [2]中国黄金集团内蒙古矿业有限公司,内蒙古满洲里021400

出　　处：《现代化工》2015年第6期128-131,共4页Modern Chemical Industry

摘　　要：在对铜精矿加压过滤所用滤布堵塞机理分析基础上,配制了化学清洗剂,研究了清洗剂对不同污染程度滤布的清洗效果以及再生性能,进而确定了清洗剂的配比。结果表明,化学清洗剂的最优配比为2.0 mol/L醋酸+0.5 mol/L HF+0.1%(φ)的JFC-E。随滤布污染程度增加,旧滤布的相对透过度先降低再升高而后趋于稳定,滤布在使用到8 d时污染程度最严重,此时使用所配制清洗剂能使滤布的相对透过度从9%提高至63%,避免了滤布因堵塞而不得不更换的问题。The effect of chemical cleaning compound on the used filter cloth and the water permeability of filter cloth used for different days are studied, respectively, based on the analysis of the clogging particles composition on the filter cloth for copper concentrate pressure filter. The results show that the optimal combination of the chemical cleaning compound is 2. 0 mol/L acetic acid ＋ 0. 5 mol/L hydrofluoric acid ＋ 0. 1% JFC-E. The relative permeability of the used filter cloth is reduced at first and then increased,at last tended to be a stable state, with the increase of the used time. When the filter cloth is used for 8 days, the relative permeability is the lowest. The cleaning agent can improve the relative permeability of used filter cloth from 9% to 63% and avoid the frequent replacement of filter cloth for blockage.

关 键 词：铜精矿 过滤 加压过滤机 滤布 清洗剂 相对透过度 

分 类 号：TQ051.8[化学工程]