Abstract

The article presents a case-study of thickening and dewatering of tailings slimes from Zhezkazgan Concentrating Plant using UltraflocTester machine and different Kemira’s Superfloc series flocculants. From among the test flocculants containing various polar groups, the anion-type A-150 flocculant has demonstrated the highest efficiency towards tailings slimes. Relatively dense slimes (100 g/l) should be treated at the velocity gradientG = 500–1000 s^–1 for 12 s, while the slimes with the relative average density of 50 g/l should be treated atG = 1000–1500 s^–1for 6 s. The effect of the hydrodynamic stimulation on the residual suspended matter concentration in overflow and on the moisture content of flocculated precipitate before and after screening under pressure is assessed.

中文翻译：

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超絮凝法刺激尾矿泥的增稠和脱水

摘要

本文介绍了使用UltraflocTester机器和Kemira的Superfloc系列絮凝剂对Zhezkazgan选矿厂的尾矿泥进行增稠和脱水的案例研究。在含有各种极性基团的测试絮凝剂中，阴离子型A-150絮凝剂对尾矿泥的效率最高。相对浓稠的粘液（100 g / l）应在速度梯度G = 500–1000 s ^–1下处理12 s，而相对平均密度为50 g / l的粘液应在G = 1000–1500下处理s ^–1持续6 s。在压力筛选之前和之后，评估了水动力刺激对溢流中残余悬浮物浓度和絮凝沉淀物水分含量的影响。