Deep-cone concentration machine used for acid waste water treatment in non-ferrous metal industry

Abstract

The invention provides a deep-cone concentration machine used for acid waste water treatment in non-ferrous metal industry, which comprises a tank body, a bridge frame, a material distributor and a material feeding pipe, wherein the bridge frame (8) spans across the top of the tank body (1), the upper part of the material distributor (3) is fixed on the bridge frame (8), the lower end of the material distributor (3) extends into the cone body part of the tank body (1), the material distributor (3) is in a double-layer structure provided with an outer tube and an inner rube, the upper part of the outer tube (4) of the material distributor is a column body, the lower part of the outer tube (4) is a cone body with a smaller upper part and a larger lower part, the inner tube (5) of the material distributor is divided into several parts: an upper column section (10), an upper cone section (11) with the larger upper part and the smaller lower part, a column-shaped transition section (12) and a lower cone section (13) with the smaller upper part and the larger lower part, the top of the upper column section (10) is provided with an exhaust pipe (9), and the material feeding pipe (6) enters the upper column section (10) of the inner tube of the material distributor along the tangent line. The deep-cone concentration machine has good effect and high efficiency when being used for treating the acid waste water in the non-ferrous metal industry, and in addition, the deep-cone concentration machine has no motive power consumption.

Description

technical field [0001] The invention relates to tailings water treatment equipment in ore dressing production, more precisely a deep cone thickener with flocculant added. Background technique [0002] After the acid wastewater produced by the non-ferrous metal industry is neutralized by lime, a large amount of solid-liquid mixture containing lime milk will be produced. This material needs to be concentrated to increase the concentration to achieve solid-liquid separation. [0003] At present, ordinary concentrators or deep cone concentrators are designed for beneficiation plants in the heavy mineral industry, and there is no special equipment for lime milk concentration. In the existing deep cone concentrator, the feeding pipe enters the distributing cylinder in the radial direction, and the distributing cylinder is a single-layer bobbin whose upper part is a cylinder with a larger diameter (the ratio of diameter to height is greater than 1), and the lower part is a single-l...

AI Technical Summary

Problems solved by technology

As the material enters the concentration tank through the distribution cylinder, the flow state does not change according to the requirements of flocculation, and the distribution cylinder does not have the function of mixing and flocculating the flocculant and wastewater, and the flocculation effect is poor; at the same time, due to the poor pertinence of the existing equipment, there is no Making full use of the characteristics of lime milk suspension, all of them are equipped with scraping rakes or bottom loosening mechanisms, which consume power during operation. Therefore, the existing deep cone thickeners have poor effect, low efficiency, and low energy consumption on concentrating the solid-liquid mixture containing lime milk. High, unable to meet the needs of acid wastewater treatment in the non-ferrous metal industry

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