Large swirl injection flotation column

Abstract

A large cyclone spraying flotation column comprises a flotation column (1) which has openings for connecting the inlet pipes (11) of the ore slurry. Cyclone spraying inflators (12) are provided on the inlet pipes of the ore slurry. There is more than one opening (13) at the bottom of the floatation column. Outlet pipes (2) of the ore refuse are connected under the openings. The outlet pipes are larger at upper and smaller at lower. The flotation column solves the blocking problem at the outlet by the cone pipes connected at the bottom openings, therefore the dead angle of the ore refuse will not appear at the bottom of the flotation column without agitating device. By using of the cyclone spraying inflators to deliver the ore slurry, the diameter of the cyclone spraying flotation column can reach to 5-15 meters, the handling capacity per slot can reach to 2 thousand ton-20 thousand ton per 24 hours, the flotation time can prolong, the recovery rate can increase 1%-3%, and the energy consumption can be saved.

Description

technical field [0001] The invention belongs to the technical field of mineral flotation, and relates to a mineral flotation device, in particular to a large swirling jet flotation column. Background technique [0002] In the prior art, the flotation equipment used in mineral flotation includes flotation columns. The slurry containing the flotation agent entrains a large amount of air into the flotation column, where it is fully mixed, and then stratified, and the flotation concentrate is carried in the foam, which is discharged from the upper outlet of the flotation column, and the tailings solid deposits At the bottom of the flotation column, the flotation column is discharged through the U-shaped tailings discharge pipeline. In the flotation column commonly used in the prior art, in order to fully mix and contact the air, chemicals and minerals in the pulp, a stirring device should be installed in the flotation column. This device can also prevent tailings solids from de...

AI Technical Summary

Problems solved by technology

[0004] However, the maximum diameter of the flotation column in the prior art of this swirl jet flotation machine can only be 5 meters, and the single tank is 50m 3 The processing capacity is 2000 tons per 24 hours

If the flotation column is larger, there will be a problem of tailings and slag deposition at the bottom of the flotation column, which makes the large-scale flotation column using swirl jet instead of conventional stirring device encounter a bottleneck and cannot break through. This kind of flotation effect is good and the structure The swirling jet flotation machine, which is simple and convenient to use and maintain, cannot meet the needs of large-scale development of mining enterprises

[0005] Therefore, the large-scale flotation columns in the prior art still all adopt the structure of the built-in stirring device, and cannot use the swirl jet aerator

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