Tailing sludge dewatering system and method thereof

Abstract

The invention relates to a tailing sludge dewatering system and a method thereof. The system comprises a slurry tank, a feeding tank and a vertical plate frame filter press which are sequentially connected through a pipeline. The vertical plate frame filter press is connected with a sewage tank and a filtrate tank respectively through pipelines, and the bottom of the vertical plate frame filter press is provided with a spiral conveying auger for collecting and outputting filter cakes. Tailing sludge is diluted with water to make slurry, and a mode of classified recycling and classified utilization of sewage and filtrate is adopted to dewater and turn the tailing sludge into the filter cakes and the clear filtrate, the slurry is prepared using the sewage, and the raw material loss is reduced to a large extent; a three-stage separation method of initial division by a vibrating screen, subdivision by a slurry tank and fine separation by a feeding pipeline is adopted to remove impurities in tailing sludge and prevent impurities from entering a kiln and generating too much slag, and the problem of blockage of the dewatering system is also solved.

Description

technical field [0001] The invention belongs to the technical field of tailings treatment, and in particular relates to a tailings sludge dewatering system and a method thereof. Background technique [0002] After the mineral processing is completed, many tailings can be roasted and redeveloped to recover useful components, so that mineral resources can be fully utilized, which reduces environmental pollution and creates economic benefits. However, since the tailings produced after beneficiation are mostly discharged in the form of sludge, the moisture content is too high to directly enter the kiln, and it needs to be dehydrated before roasting, otherwise the tailings sludge will stick to the feed port , affecting the normal operation of the kiln. [0003] Due to the poor fluidity of the tailings sludge, it is difficult to use pipelines to enter the dewatering equipment. Even if it enters the dehydration equipment in other ways, it is difficult to form a uniform coating or ...

AI Technical Summary

Problems solved by technology

However, since the tailings produced after beneficiation are mostly discharged in the form of sludge, the moisture content is too high to directly enter the kiln, and it needs to be dehydrated before roasting, otherwise the tailings sludge will stick to the feed port , affecting the normal operation of the kiln

[0003] Due to the poor fluidity of the tailings sludge, it is difficult to use pipelines to enter the dewatering equipment. Even if it enters the dehydration equipment in other ways, it is difficult to form a uniform coating or filter cake layer, which affects the normal operation of the dehydration equipment and cannot achieve the ideal dehydration effect.

At present, enterprises mainly dry in the air. This method is inefficient and occupies a large area. The dehydration rate is greatly affected by environmental factors, and the dehydration rate is uneven. The surface of the tailings sludge in contact with the air is easy to dry and crack, and there is sometimes dust. the existence of the environment

Images