Large-sized floatation column middling dual-swirl device

Abstract

The invention relates to a large-sized floatation column middling dual-swirl device, and belongs to the technical field of floatation. The large-sized floatation column middling dual-swirl device consists of a middling circulating pump, a middling discharge pipe, a distributor, a bubble generator, a connecting pipe, a column body, an inner upper cone cylinder, an inner middle cone cylinder, an inner lower cone cylinder, a partition board (1), a partition board (II), a distribution plate, an outer upper cone cylinder, an outer middle cone cylinder, an outer lower cone cylinder, a middling feed pipe (I) and a middling feed pipe (II), wherein the upper end of the inner middle cone cylinder is connected with the lower end of the inner upper cone cylinder; the lower end of the inner middle cone cylinder is connected with the upper end of the inner lower cone cylinder; the upper end of the outer middle cone cylinder is connected with the lower end of the outer upper cone cylinder; the lower end of the outer middle cone cylinder is connected with the upper end of the outer lower cone cylinder; the lower end of the outer lower cone cylinder is connected with the lower segment inner wall of the column body. The large-sized floatation column middling dual-swirl device has the beneficial effects of uniform middling slurry distribution, stable floatation concentrate liquid level, good middling inverse flow collision mineralization effect, good swirl floatation effect and high floatation concentrate recovery rate.

Description

Technical field [0001] The invention relates to a medium ore double-swirl device of a large-scale flotation column, which belongs to the technical field of flotation. Background technique [0002] The flotation column can effectively separate fine-grained minerals <0.5mm, and has successfully realized industrialization. This equipment integrates flotation and cyclone gravity separation methods. Sweeping section, in which the medium ore cyclone device is the key device that affects the separation effect of the sweeping section. At present, the swirling device used in the flotation column sweeping section is one, which is mainly applied to the flotation column with a diameter of less than 5.0 meters. It is uniform and has the phenomenon of "vortex"; there is little pulp in the middle of the column; the effect of countercurrent collision of medium pulp is poor, the effect of swirl flotation is poor, and the recovery rate of flotation concentrate is low. [0003] At present...

AI Technical Summary

Problems solved by technology

At present, the swirling device used in the flotation column sweeping section is one, which is mainly applied to the flotation column with a diameter of less than 5.0 meters. Uniform and has "vortex" phenomenon; there is little ore pulp in the middle of the column; the countercurrent collision mineralization effect of the middle ore pulp is poor, the swirl flotation effect is poor, and the recovery rate of flotation concentrate is low

[0005] With the large-scale design of the coal preparation plant, the supporting equipment is also correspondingly large-scale. If a small flotation column is used, there are disadvantages: multiple equipment is required, high investment, high maintenance costs, large floor area, and large plant investment

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