Eddy current flotation device for fine-grained mineral sorting

Abstract

The invention discloses a vortex flotation device for fine-grained mineral sorting, comprising a feeding component, a vortex mineralization tube and a flotation cell; the conical structure of the lower part of the flotation cell is provided with an inner inverted cone, and the lower end is provided with a tail Mine discharge outlet, the bottom outlet of the inner inverted cone is connected with the middle mine outlet; the feeding component includes a pulp distributor, the upper end of the pulp distributor is connected with the feeding pipe, and the lower end is connected with the input ports of a plurality of bubble generating devices through a plurality of conveying pipes Corresponding connection; a plurality of eddy current mineralization tubes are correspondingly connected with the output ports of a plurality of bubble generating devices, the lower part of each eddy current mineralization tube is located in the upper part of the flotation cell, the lower end is bent into a right-angle structure, and a raised component is arranged inside; The outlets of the lower ends of the plurality of vortex mineralization pipes are arranged tangentially toward the same circumference, so that the ore pulp in the flotation tank swirls. The eddy current flotation device is used for the sorting of fine-grained minerals, which not only improves the recovery rate of minerals and makes the mineralization effect of fine-grained minerals better, but also strengthens the recovery of fine-grained particles by generating tiny-scale vortices.

Description

technical field [0001] The invention relates to the technical field of mineral processing equipment, in particular to an eddy current flotation device for sorting microfine minerals. Background technique [0002] With the gradual depletion of high-quality mineral resources, refractory and low-grade minerals are the main direction of mineral resources recovery in the future. This kind of low-grade refractory minerals have complex components and fine particle size, and the useful minerals must be dissociated through fine grinding come out. The separation of useful mineral particles from finely ground tiny mineral particles is mainly through flotation. However, due to the small mass of fine mineral particles, low kinetic energy, and low collision probability with air bubbles, it is difficult to mineralize with air bubbles. Compared with For coarse particles, the difficulty of flotation increases sharply, which seriously restricts the recovery of useful minerals and reduces the...

AI Technical Summary

Problems solved by technology

The separation of useful mineral particles from finely ground tiny mineral particles is mainly through flotation. However, due to the small mass of fine mineral particles, low kinetic energy, and low collision probability with air bubbles, it is difficult to mineralize with air bubbles. Compared with For coarse particles, the difficulty of flotation increases sharply, which seriously restricts the recovery of useful minerals and reduces the waste of resources

[0003] The recovery rate of fine-grained minerals can be improved by strengthening the turbulent flow. The existing methods mainly achieve the strengthening of the turbulent flow by increasing the impeller speed of the flotation machine or increasing the circulation pressure of the flotation column. These relatively "simple" control methods have a certain degree of It can improve the recovery rate of fine particles, but there are certain disadvantages and recovery bottlenecks, such as the increase of energy consumption, the low recovery rate of fine particles, the non-linear relationship between the lower limit of flotation particle size and energy consumption, and the increase of speed and cycle pressure. To a certain extent, the change of fine particle recovery rate is extremely weak. In addition, excessive energy input will also lead to the deterioration of the overall flotation environment, causing desorption of ore particles and suction of the circulating pump, and the reduction of flotation performance and stability of the equipment.

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