A full-size coal slime separation equipment

Abstract

The invention discloses a kind of full-grain coal slime sorting equipment. The raw coal slime slurry is fed into the classifying cyclone through the feed pump for particle size classification, and the overflow fine particle slurry is fed into the cone buffer mine through the overflow pipe. In the flotation tank, the primary chemical and air are mixed with the pulp. The fine-grained pulp at the bottom of the cone buffer mineralization tank overflows the tank through the diversion tube, and is fed into the flotation tank through the tangential line of the pipeline for preliminary cyclone flotation. The mine continues to sink, and the secondary flotation is carried out through the bottom press-in air bubble generating device to produce qualified fine coal slime and tailing coal slime; the coarse particles at the bottom of the classifying cyclone are fed into the TBS ring column barrel along the tangential direction, and passed through the clear water The rising water flow generated by the distributor interferes with the sorting, resulting in overflow clean coal slime and underflow tailing coal slime. The clean coal slime slurry is continuously settled through the multi-layer cascade overflow weir of coarse grain concentrate to remove high ash and fine mud. The beneficial effect of the present invention is to realize the separation of coal slime with full particle size in a single set of equipment.

Description

technical field [0001] The invention belongs to the technical field of coal preparation equipment, and relates to a kind of full-size coal slime separation equipment. Background technique [0002] Coal is the main energy source in our country. At present, the coal washing and processing technology of domestic enterprises generally includes dense medium separation system, coarse coal slime separation system and flotation system. With the increasing depletion of coal resources, the efficient recycling of coal has become an important factor to be considered at the beginning of the construction of coal preparation plants. Coarse-grained coal slime of 2mm to 0.5mm and fine-grained coal slime below 0.5mm, and the two independent systems will undoubtedly increase the infrastructure investment, production management and maintenance costs of the coal preparation plant, requiring an efficient separation system The separation equipment can be used for the full-size separation of coal...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of full-size coal slime sorting equipment, which solves the problem of low efficiency of the current full-size coal slime sorting equipment

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