河南某铝土矿浮选尾矿脱水试验研究  

Experimental Study on Dewatering of the Flotation Tailings of Bauxite in Henan

作　　者：张宁宁[1] 周长春[1] 欧阳长恒 韩瑞[2] 

机构地区：[1]中国矿业大学化工学院,江苏徐州221116 [2]青岛科技大学高密校区,山东潍坊261500

出　　处：《矿产综合利用》2016年第2期93-96,共4页Multipurpose Utilization of Mineral Resources

基　　金：国家自然科学基金项目(51174205);教育部新世纪优秀人才支持计划资助项目(NCET-12-0962);江苏省高校优势学科建设工程资助

摘　　要：针对河南某铝土矿浮选尾矿脱水效果差的问题,以改性聚丙烯酰胺AS3318为絮凝剂、以表面活性剂TLT8840为助滤剂,对该尾矿浆进行脱水试验研究。试验结果表明:当AS3318用量为240 g/t时,可以获得与现场PAM相当的尾矿浆沉降效果;在过滤时间缩短20%的前提下,为了使滤饼水分下降1.5个百分点,现场PAM沉降体系下的浓缩矿浆需添加160 g/t的助滤剂,而在AS3318沉降体系下的浓缩矿浆只需添加80 g/t的助滤剂。所以在沉降阶段选用AS3318作为絮凝剂更为有利。In order to solve the problem of poor dewatering of flotation tailings,with AS3318 as flocculant and TLT8840 as filter aid,the flotation tailings of bauxite from Henan was studied in this paper. The results showed that when the dosage of AS3318 is 240 g / t,a good settling effect of tailings slurry can be obtained,which is not very differentfrom that of using the PAM of processing plant. In order to make the cake moisture fell 1. 5 percentage points under the premise of filtration time shortened by 20%,160 g / t of filter aid should be added into the concentrated pulp under the settlement system of the PAM of processing plant,while the dosage under the settlement system of AS3318 is only 80 g / t,so it is more favorable to choose AS3318 as the flocculant in the settlement stage.

关 键 词：铝土矿 浮选尾矿 沉降 过滤 脱水 

分 类 号：TD926[矿业工程—选矿]