D0L:10.13374.issn1001-053x2013.11.019 第35卷第11期 北京科技大学学报 Vol.35 No.11 2013年11月 Journal of University of Science and Technology Beijing Nov.2013 硫酸铝/聚丙烯酰胺联合调质对铜坑矿矿井泥浆脱 水性能的影响 黄国忠)凶，李登琨)，罗先伟)，杨伟忠2)，王俊峰)，苗学敏)，包丽洁) 1)北京科技大学土木与环境工程学院，北京100083 2)广西华锡集团公司，广西545006 ☒通信作者，E-mail:huangguozhonghgz_001@sina.com 摘要通过对泥浆毛细吸水时间(CST)的测定，分析了硫酸铝/聚丙烯酰胺(PAM)联合调质对泥浆脱水性能的影响， 同时考察了加药时间间隔、搅拌时间、搅拌强度、总药剂投加量以及药剂配比对泥浆脱水效果的影响.当PAM进行单 独投加时，PAM投加量为3mgg1时，泥浆的CST值最小，为17.4s.当混凝剂硫酸铝和PAM进行联合投加时，硫 酸铝投加量为1.5mgg1,PAM投加量为3mgg1时，泥浆的CST值降低到16.9s.实验确定适宜的加药时间间隔为 45s,搅拌时间为120s,搅拌强度为40r~mi-1.通过正交试验得到总药剂投加量和药剂配比对泥浆脱水效果影响的顺 序为总药剂投加量>药剂配比，且总药剂的最佳投加量为4mgg,药剂质量比PAM:Al2(S04)3为1：3 关键词金属矿山：泥浆：脱水：硫酸铝：聚丙烯酰胺：废弃物处理 分类号X705 Effect of polyacrylamide conditioning combined with aluminum sulfate on Tongkeng mine slurry dewatering behavior HUANG Guo-zhong)LI Deng-kun),LUO Xian-wei2),YANG Wei-zhong2),WANG Jun-feng), MIAO Xue-min1),BAO Li-jie) 1)School of Civil and Environmental Engineering,University of Science and Technology Beijing,Beijing 100083,China 2)China Tin Group Co.Ltd.,Guangxi 545006,China Corresponding author,E-mail:huangguozhonghgz.001@sina.com ABSTRACT The influence of polyacrylamide(PAM)conditioning combined with Al2(SO4)s coagulant on Tongkeng mine slurry dewatering behavior was investigated by capillary water absorption time(CST)measurements.The depen- dence of the slurry dewatering behavior on interval time of adding chemicals,stirring time,stir intensity,total dosage of chemicals,and chemicals ratio were analyzed in detail.When adding PAM alone in the slurry,the CST reaches its minimum value of 17.4 s at the PAM dosage of 3 mg-g.But when simultaneously adding Al2(SO)3 coagulant and 3 mg.g PAM in the slurry,the CST decreases to 16.9 s at the Al2(SO)3 dosage of 1.5 mg.g.The appropriate opreating conditions were experimentally determined as the interval time of adding chemicals of 45 s.the stirring time of 120s,and the stirring intensity of 40 r-min-1.By means of orthogonal experiment design,the significance of parameters influencing the slurry dewatering behavior is in the order of total dosage of chemicals>chemicals ratios,and the optimal total dosage of chemicals is 4 mg.g,with the mass ratio of PAM and Al2(SO4)s of 1:3. KEY WORDS metal mines;slurries;dewatering;aluminum sulfate;polyacrylamides;waste disposal 收稿日期：2012-08-20第 35 卷 第 11 期 北 京 科 技 大 学 学 报 Vol. 35 No. 11 2013 年 11 月 Journal of University of Science and Technology Beijing Nov. 2013 硫酸铝/聚丙烯酰胺联合调质对铜坑矿矿井泥浆脱 水性能的影响 黄国忠1) ，李登琨1)，罗先伟2)，杨伟忠2)，王俊峰1)，苗学敏1)，包丽洁1) 1) 北京科技大学土木与环境工程学院，北京 100083 2) 广西华锡集团公司，广西 545006 通信作者，E-mail: huangguozhonghgz 001@sina.com 摘 要 通过对泥浆毛细吸水时间 (CST) 的测定，分析了硫酸铝/聚丙烯酰胺 (PAM) 联合调质对泥浆脱水性能的影响， 同时考察了加药时间间隔、搅拌时间、搅拌强度、总药剂投加量以及药剂配比对泥浆脱水效果的影响. 当 PAM 进行单 独投加时，PAM 投加量为 3 mg·g –1 时，泥浆的 CST 值最小，为 17.4 s. 当混凝剂硫酸铝和 PAM 进行联合投加时，硫 酸铝投加量为 1.5 mg·g –1，PAM 投加量为 3 mg·g –1 时，泥浆的 CST 值降低到 16.9 s. 实验确定适宜的加药时间间隔为 45 s，搅拌时间为 120 s，搅拌强度为 40 r·min−1 . 通过正交试验得到总药剂投加量和药剂配比对泥浆脱水效果影响的顺 序为总药剂投加量＞药剂配比，且总药剂的最佳投加量为 4 mg·g –1，药剂质量比 PAM : Al2(SO4)3 为 1︰3. 关键词 金属矿山；泥浆；脱水；硫酸铝；聚丙烯酰胺；废弃物处理 分类号 X705 Effect of polyacrylamide conditioning combined with aluminum sulfate on Tongkeng mine slurry dewatering behavior HUANG Guo-zhong1) , LI Deng-kun1) , LUO Xian-wei 2) , YANG Wei-zhong2) , WANG Jun-feng1) , MIAO Xue-min1) , BAO Li-jie1) 1) School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China 2) China Tin Group Co. Ltd., Guangxi 545006, China Corresponding author, E-mail: huangguozhonghgz 001@sina.com ABSTRACT The influence of polyacrylamide (PAM) conditioning combined with Al2(SO4)3 coagulant on Tongkeng mine slurry dewatering behavior was investigated by capillary water absorption time (CST) measurements. The depen￾dence of the slurry dewatering behavior on interval time of adding chemicals, stirring time, stir intensity, total dosage of chemicals, and chemicals ratio were analyzed in detail. When adding PAM alone in the slurry, the CST reaches its minimum value of 17.4 s at the PAM dosage of 3 mg·g –1 . But when simultaneously adding Al2(SO4)3 coagulant and 3 mg·g –1 PAM in the slurry, the CST decreases to 16.9 s at the Al2(SO4)3 dosage of 1.5 mg·g –1 . The appropriate opreating conditions were experimentally determined as the interval time of adding chemicals of 45 s, the stirring time of 120 s, and the stirring intensity of 40 r·min−1 . By means of orthogonal experiment design, the significance of parameters influencing the slurry dewatering behavior is in the order of total dosage of chemicals > chemicals ratios, and the optimal total dosage of chemicals is 4 mg·g –1 , with the mass ratio of PAM and Al2(SO4)3 of 1︰3. KEY WORDS metal mines; slurries; dewatering; aluminum sulfate; polyacrylamides; waste disposal 收稿日期：2012-08-20 DOI:10.13374/j.issn1001-053x.2013.11.019