期刊论文

中文

南华大学学报(自然科学版)

1673-0062

2015

1

41-45

10.19431/j.cnki.1673-0062.2015.01.010

本校为第一机构

安徽某铁矿山采用立式砂仓浓密沉降制备全尾砂原料膏体,制备过程出现了立式砂仓底流浓度低,溢流水跑浑等问题.为解决立式砂仓浓密存在的一系列问题,矿山拟采用深锥浓密机方案改造立式砂仓,需对全尾砂絮凝沉降方案开展实验研究.本次实验的絮凝沉降效果以上清液的澄清度、絮凝沉降底流浓度和沉降率三项指标综合考虑进行判断.实验第一步骤通过4种分子量的阴离子聚丙烯酰胺（APAM）沉降效果比较,优选出1 200万和1 600万的APAM最佳分子量方案;第二步骤实验确定最佳絮凝剂添加量,实验结果表明,分子量1 200万最佳添加量为10 g/t~20 g/t,分子量1 600万最佳添加量为20 g/t~30 g/t.本次絮凝沉降实验方法将...

An iron mine of Anhui uses vertical sand bin dense settlement to prepare full tailing paste material,but in the process the problems of underflow concentration low and overflow mudflow have appeared. In order to solve the problems existed in the vertical sand bin,the mine plans to transform the vertical sand bin into the deep cone thickener. So we need to carry out the experimental study of the flocculation settlement of whole tailings. The effect of flocculation of this experiment use the three indicators as the comprehensive judgment： supern...