浓密机(thickener)是基于重力沉降作用的固液分离设备,通常为由混凝土、木材或金属焊接板作为结构材料建成带锥底的圆筒形浅槽。可将含固重为10%~20%的矿浆通过重力沉降浓缩为含固量为45%~55%的底流矿浆,借助安装于浓密机内慢速运转(1/3~1/5r/min)的耙的作用,使增稠的底流矿浆由浓密机底部的底流口卸出。 浓密机上部产生较清净的澄清液(溢流),由顶部的环形溜槽排出。 浓密机广泛用于湿法冶金、选矿厂、化工厂等需要固液富集分离的生产场所,其直径3~100m,深度2~4m。
The fluid mechanics is used to research on the settling theory of solid particles in different zones of the general thickener. The two-phase flow movement of the liquid-solid phase of the high-pressure deep cone thickener is analyzed.
运用流体力学对固体颗粒在普通浓缩机不同区的沉降理论进行研究,对高压深锥浓密机的液固相进行两相流运动分析,研究了高分子絮凝剂在尾矿固体颗粒表面的吸附行为、吸附过程以及絮凝机理。
参考来源 - 梅山铁矿尾矿高压浓缩工艺研究·2,447,543篇论文数据,部分数据来源于NoteExpress
通过生产实践,对高效浓密机的主要特点和存在问题进行了评价。
Major characteristics and existing problems of these equipment are evaluated on the basis of operation practice.
本文叙述了一种底流浓度可达70 %以上的高效浓密机及其应用。
A high rate thickener which can produce underflow containing 70% solid and its application was described in this article.
根据具体事例,介绍了一种能使普通浓密机的排矿浓度保持恒定的自动控制方法。
The paper introduces a automatically controlling method which is able to maintain constant concentration of the pulp discharged from a concentrator through example.
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