Multi-layer de-sliming thickener

Abstract

The invention discloses a multi-layer de-sliming thickener. The multi-layer de-sliming thickener comprises an upper cone (1), a receiving barrel (3), a lower cone (2) and an overflow groove (12). The upper cone (1) is of an inverted-cone shape, a lower distribution plate (5) is arranged at a discharging port in the bottom of the upper cone (1), and an upper sedimentation region is formed inside the upper cone (1). The receiving barrel (3) is arranged inside the upper cone (1) and provided with a feeding pipe (7), and an upper distribution plate (4) is arranged at a discharging port in the bottom of the receiving barrel (3). The lower cone (2) is of an inverted-cone shape, the upper cone (1) is sleeved with the lower cone (2), a grout valve is arranged at a bottom flow pipe (8) of the lower cone (2), and a lower sedimentation region is arranged inside the lower cone (2). The overflow groove (12) is formed in the periphery of an overflow opening of the upper cone (1) and the lower cone (2), and provided with an overflow pipe (13). The thickener has high de-sliming and thickening efficiency, the production capacity per unit area is high, and one thickener can achieve the using effect of performing thickening and de-sliming on two or more sections, and is a good choice for de-sliming in concentrating mills and particularly for selective flocculation de-sliming and thickening operation.

Description

technical field [0001] The invention relates to the technical field of mineral processing equipment, in particular to a concentrator used for desliming treatment of ore pulp. Background technique [0002] Desliming and thickening are common operations in the beneficiation production process. The basic principle is to use the ore (or ore aggregate) to settle out of the slurry by its own gravity to achieve the purpose of desliming or dehydration. [0003] At present, conventional desliming and thickening equipment mainly include thickeners, desliming hoppers, inclined plate thickeners, etc. [0004] Thickener is simple in structure and reliable in production. It is a thickening and dehydrating equipment widely used in mineral processing plants in my country. When thickeners are used for desliming, especially selective flocculation desliming, due to common problems such as low desliming efficiency and difficult control, it is often necessary to use multiple thickeners in serie...

AI Technical Summary

Problems solved by technology

Its disadvantage is that when the pulp moves in the equipment, the disturbance is small, which is not conducive to the dispersion of particles in the pulp, especially when it is used in the selective flocculation desliming process, the useful minerals will entrain a large amount of gangue slime and sink, resulting in desliming Ineffective

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