Compact rake-free concentrator

Abstract

The invention relates to the field of slime water treatment, in particular to a compact rake-free concentrator. The compact rake-free concentrator comprises a feeding assembly, a diversion assembly and a clean coal collecting assembly. The diversion assembly further comprises a central tank body, coal slime water passes through the feeding assembly, flows with a medicament from the upper part of the central tank body to the middle part of the central tank body, and is diffused in all directions, after the reaction, residual mineralized bubbles and fine coal slime move upwards into the clean coal collecting assembly from the inner side wall of the central tank body, the clean coal collecting assembly is located above the outlet of the diversion assembly, the clean coal collecting assembly is sequentially provided with an edge feeding area and a defoaming area from outside to inside, the clean coal collecting assembly further comprises a diversion settling area arranged on the outer sidewall of the central tank body, and slime water defoamed by the defoaming area is output to the inlet of the diversion settling area from the middle of the central tank body through a first overflow discharge pipe. According to the compact rake-free concentrator, a traditional multi-section concentration tank is structurally integrated, and the occupied area of the traditional multi-section concentration tank is greatly reduced.

Description

technical field [0001] The invention relates to the field of coal slime water treatment, in particular to a compact rakeless thickening device. Background technique [0002] In the coal washing process, the slime water treatment, as the finishing link of the washing process, is the key to the effective collection and utilization of coal slime and the closed cycle of washing water, and the thickening device as the carrier of coal slime water treatment and the key equipment for processing has been obtained It is widely used and is of great significance to the closed circulation of washing water, the full utilization of underflow concentrate and environmental protection. [0003] With the integration and large-scale of coal washing plants, the processing capacity has been greatly increased, and the output of coal slime water and the content of fine slime in coal slime water have also increased significantly. Some equipment has reached the specifications of 45m and above, but d...

AI Technical Summary

Problems solved by technology

[0003] With the integration and large-scale of coal washing plants, the processing capacity has been greatly increased, and the output of coal slime water and the content of fine slime in coal slime water have also increased significantly. Some equipment has reached the specifications of 45m and above, but due to the finer fine mud and the increase in processing capacity, the settlement time period is poor, and the settlement effect is poor. The fine mud in the washing circulating water cannot be effectively removed, which will cause coal The quality of washing is seriously affected, so many coal preparation plants have added two-stage concentration or even three-stage concentration to further purify the washing circulating water, which will take up a lot of land, and there are still residual flotation stages in the slime water that have not been completely The recovered coal foam, resulting in the waste of clean coal, resulting in economic losses

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