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Tailings Dry Drainage Technology

Dry tailings drainage is a new tailings disposal technology, which is gradually emerging in recent years. It refers to the tailings slurry output by the beneficiation process after multi-stage concentration, and then treated by high-efficiency dewatering equipment such as dewatering shaker, forming slag with small water content, easy precipitation and solidification, which is beneficial to site storage. The slag can be transported to a fixed site for dry storage.

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Introduction

It is mainly used for concentration and dewatering process of tailings in concentrator to achieve the purpose of dry heap of tailings, thus avoiding environmental pollution. It is the preferred process for implementing green mines.

The combined tailings of hydrocyclone and dewatering vibrating screen are concentrated by hydrocyclone, and the underflow is dewatered by high frequency vibrating dewatering screen, which can make the water content of tailings less than 16% and achieve the purpose of dry tailings drainage and heap. This method has good effect, less investment and high efficiency. It is an economical and practical way in the market at present.
Directly using concentrating mechanical filtration, this method has a large initial investment and a small scope of application. Sometimes it can not meet the production efficiency or dehydration degree.