Flotation system and process for refractory minerals

Abstract

The invention belongs to the technical field of flotation of refractory minerals, in particular to a flotation system and process for refractory minerals. The flotation system comprises a feeding mechanism, a flotation mechanism, a tailing collection mechanism and a concentrate collecting mechanism; the feeding mechanism comprises a feeding transport pipe and a slurry mixing module for fully mixing a collecting agent and ore pulp; the system further comprises a collecting agent adding mechanism communicating with the feeding transport pipe, the collecting agent adding mechanism is located between a feed inlet of the feeding mechanism and the slurry mixing module, a collecting agent adding adjuster for changing the adding amount is arranged in the collecting agent adding mechanism, and theadjusting amount of the collecting agent adding adjuster is determined by ore pulp flow; and the system further comprises a bubble generating device arranged between the flotation mechanism and the slurry mixing module. The system is simple in structure, the flow of the floatation process is simplified, the adding amount of a collecting agent can be synchronous with the ore pulp flow, and accordingly the flotation effect is ensured advantageously.

Description

technical field [0001] The invention belongs to the technical field of refractory mineral flotation, and in particular relates to a refractory mineral flotation system and a flotation process. Background technique [0002] Froth flotation is a well-known method for separating crushed fine materials from slurry or suspension in water. The pellets that are expected to be recovered from the pulp can be treated with chemicals (collectors) to render them hydrophobic and a gas, usually air, mixed or sprayed into the pulp in the form of bubbles that come into contact with the hydrophobic pellets , carrying them to the surface of the slurry to form a stable layer of foam. The froth containing the buoyant particles is recovered as enrichment or flotation product, and various hydrophilic materials are left to sink into the slurry and then discharged or subjected to secondary flotation. [0003] At present, the existing flotation device mostly adopts pulp preprocessor for the mixing ...

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Problems solved by technology

[0003] At present, the existing flotation device mostly adopts pulp preprocessor for the mixing of difficult-to-float minerals and collectors, which has a cumbersome structure and complicated process. In the flotation device, the collector is fully mixed with the pulp through impeller stirring, and the energy consumption is relatively high. At the same time, it is necessary to manually measure the amount of material and then determine the amount of dosing. Synchronization cannot be achieved, and the problem of adding more or less is prone to occur, resulting in waste of collectors or poor mixing effect.

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