Rotation-free step flotation method

Abstract

The invention discloses a rotation-free step flotation method. The flotation method comprises that: after slurry conveyed by a slurry pump and air produced by an air compressor and with certain pressure are subjected to gas-liquid mixing for 2 to 5 times from the top to the bottom in a flotation column, the mixture is sprayed into the flotation column to realize separation of target substances and impurities, wherein a foam product is used as a final target substance and the bottom flow is used as an effluent. The flotation method has the advantages of short process flow, large amount of treated materials, high separation efficiency, land saving, stable production process and easy control. The flotation method can well reclaim the target materials of different grain levels, meets the separation process of the target substances and the impurities in the flotation process, and has wide application range.

Description

technical field [0001] The invention relates to a method for sorting ore particle materials, in particular to a method for flotation by using a flotation column. Background technique [0002] Flotation is the most widely used and effective method for sorting fine-grained and ultra-fine-grained materials. Flotation machines are industrial equipment for flotation operations. There are many types of flotation machines. The differences are mainly reflected in the inflation method and the structure of the stirring device. There are two types of flotation machines, namely mechanical agitation and non-mechanical agitation flotation machines. [0003] The development of mechanical stirring flotation machines has a history of many years at home and abroad, and the technology is becoming mature. But its inherent disadvantages are obvious, such as: high energy consumption, large footprint and so on. [0004] The most typical non-mechanical agitation flotation machine is the flotatio...

AI Technical Summary

Problems solved by technology

However, due to the difference in ore selectivity, it is difficult to recover useful materials by using a flotation column

Generally, the process flow of flotation column has one coarse-fine, one coarse-sweep, one rough-fine-sweep, etc. In the above process, the corresponding stirring device and feeding device must be added between the two flotation columns. It will inevitably increase the energy consumption of the flotation process and increase the cost of beneficiation

Due to the poor fluidity of the foam in the flotation process, the foam flushing water must be used between the two flotation columns to realize the forward movement of the foam. The use of foam flushing water reduces the flotation concentration and reduces the unit processing capacity of the flotation column

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