Thickener capable of treating high-concentration ore pulp

Abstract

The invention discloses a thickener capable of treating high-concentration ore pulp. The thickener comprises a reaction cavity, a mounting mechanism, a transmission mechanism and a discharging mechanism, wherein the reaction cavity comprises a peripheral cavity, a fall pressure chamber, a primary treatment chamber, a secondary treatment chamber, a primary sedimentation cavity and a secondary sedimentation cavity; when the thickener works, ore pulp materials enter the primary treatment chamber along a feed pipe, solids with larger particle sizes are deposited in the primary treatment chamber and enter the primary sedimentation cavity through a screen, the sedimentation and flocculation of the materials are accelerated by the rotation of primary inclined main boards, and sedimentation flocculates enter the secondary sedimentation cavity through a screen at the bottom of the primary sedimentation cavity; and secondary inclined main boards in the secondary sedimentation cavity drive stirring shafts, stirring frames and stirring blades to stir, so that secondary sedimentation of the materials is promoted. The thickener can treat ore pulp with the mass concentration of more than 45-55%, the treatment speed of the high-concentration ore pulp is high, the power consumption and the abrasion degree of a reaction cavity and a rake plate are low, and the service life of the thickener is prolonged.

Description

technical field [0001] The invention relates to the field of slurry processing equipment, in particular to a thickener capable of processing high-concentration pulp. Background technique [0002] Thickeners are widely used in mineral processing plants, and are mainly used in processes that require solid-liquid separation, such as leachate concentration and wastewater treatment. At present, thickeners are mainly divided into traditional thickeners, high-efficiency thickeners and high-efficiency deep cone thickeners. The working principle of the concentrator is that after the ore is mixed with the flocculant, it enters through the central vertical cylinder, and the outlet deflector guides the pulp from the feeding vertical cylinder to diffuse around, so that the pulp diffuses around and enters the pre-formed sediment layer , and the flocculant that comes in at the same time as the material forms a mud layer and settles to the bottom of the thickener; the liquid rises through t...

AI Technical Summary

Problems solved by technology

[0005] The following problems still exist in the thickener in the prior art: 1) when the mass concentration of the underflow pulp reaches more than 45%-55%, the settlement of the ore particles will interfere with each other, and there will be a large mechanical resistance due to collision friction between each other, and the settling speed Therefore, the processing speed of high-concentration pulp is slow, and the power consumption and wear of the reaction chamber and rake plate will be increased, and the service life of the thickener will be reduced; 2) After the high-concentration concentrated pulp enters the discharge mechanism, it is easy to Condensation hangs on the inner wall to cause blockage, which will not only reduce the storage and discharge speed, but also increase the wear and tear of the equipment and reduce the service life of the equipment; 3) The overall height of the thickener is high, the stability is poor, and the pulp compression area is small, increasing 4) It is easy to block the flocculant adding pipe when the flocculant is added, and only one pipe is used to add the flocculant, so that the contact area between the flocculant and the pulp is small, and the flocculation is reduced. efficiency

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