ABSTRACT The present investigation aimed to understand dewatering amenability of the tailing slurry generated during the beneficiation of chromite ore. The tailing includes mainly ultrafine particles with a concentration of Cr+6 which causes environmental and storage issues. Several dewatering techniques were investigated, including settling by using two different thickeners (high rate thickening and paste thickening), pressure filtration, as well as classification by using hydrocyclone. This paper explains the results obtained in various stages of the dewatering process. Further, different dewatering circuits were examined for the effective dewatering of the tailing slurry, and the optimum solutions were discussed. It is also concluded that up to 97% of the water can be recovered and recycled from such tailing slurry by adopting an efficient dewatering circuit.

中文翻译：

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铬铁矿加工厂尾矿浆脱水回路设计与分析

摘要 本研究旨在了解铬铁矿选矿过程中产生的尾矿浆的脱水顺应性。尾矿主要包括浓度为 Cr+6 的超细颗粒，这会导致环境和储存问题。研究了几种脱水技术，包括使用两种不同的增稠剂（高速增稠和糊状物增稠）进行沉降、加压过滤以及使用水力旋流器进行分级。本文解释了在脱水过程的各个阶段获得的结果。此外，还研究了不同的脱水回路以实现尾矿浆的有效脱水，并讨论了最佳解决方案。