Flotation pulp-mixing method and flotation pulp-mixing equipment capable of improving mineralization effect

Abstract

The invention belongs to the fields of pulp pretreatment technologies and equipment before flotation, and discloses a flotation pulp-mixing method and flotation pulp-mixing equipment capable of improving a mineralization effect. The equipment has a function of simultaneously realizing pressurization / decompression and mechanical stirring, and can flexibly adjust the gas holdup in pulp, therefore, an equipment support is provided for studying the influence of the gas holdup on cavitation; specifically, the concentration of gas, namely the gas holdup, in the pulp is adjusted in real time to improve the cavitation effect, promote the agglomeration among fine particles, and increase the apparent diameter so as to increase the collision probability of the fine particles and bubbles during the flotation process, and improve the mineralization effect. Specifically, the gas holdup in the pulp is adjusted by pressure regulation, and the gas holdup in the pulp is controlled at 5% to 40%, and theconcentration of the gas in the pulp is reasonably increased, thereby facilitating the occurrence of the cavitation, promoting the agglomeration among the fine particles and increasing the apparent diameter, improving the collision probability of the fine particles and the bubbles in the flotation process, and improving the mineralization effect.

Description

technical field [0001] The invention belongs to the field of slurry pretreatment technology and equipment before flotation, and in particular relates to a flotation slurry conditioning method and flotation slurry conditioning equipment capable of improving the mineralization effect. Background technique [0002] The stirring and pulping stage before the flotation process is an operation process that cannot be ignored. The fine-grained materials are easy to agglomerate, and the gangue particles are mixed in the useful minerals, which will pollute the flotation concentrate. The purpose of mechanical stirring and pulping process is to fully disperse and interact with fine mineral particles and flotation reagents, improve the surface hydrophobicity of mineral particles, and thus improve the flotation effect. However, with the widespread application of mining mechanization in our country, the promotion of pre-selection crushing technology and the increase of oxidized coal conten...

AI Technical Summary

Problems solved by technology

The existing pulp pretreatment equipment and technology before flotation have great limitations for flotation feed, such as low mineralization efficiency, poor selectivity, and high ash content in clean coal.

At the same time, the existing flotation stirring slurry mixing equipment is directly connected to the atmosphere, and cannot quantitatively adjust the gas holdup in the pulp during the pretreatment stage

Images