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

A pulping and pulping technology, which is applied in flotation, solid separation, etc., can solve the problems of unable to quantitatively adjust the gas content of pulp, high ash content of clean coal, and low mineralization efficiency, so as to improve the pulping effect, promote agglomeration, The effect of increasing the apparent diameter

Active Publication Date: 2019-05-21
TAIYUAN UNIV OF TECH
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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 coa

Method used

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

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[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention and the accompanying drawings.

[0024] The invention includes a barrel body 1, a sealing cover 2, an upper baffle 3, a lower baffle 4, a stirring motor 5, a stirring shaft 6, a stirring impeller 7, a suction valve 8, an exhaust valve 9, a pressure gauge 10, and a pressure sensor 11. And 12, the inlet 13, the outlet 14, the bracket 15, the processor 16. The sealing cover 2 is tightly connected with the barrel 1, the upper baffle 3 and the lower baffle 4 are evenly installed inside the barrel 1, the stirring shaft 6 passes through the center of the sealing cover 2 and is connected to the external stirring motor 5, and the end of the stirring shaft 6 is connected to The stirring impeller 7 is connected, the suction valve 8 and the exhaust valve 9 are installed on the upper part of the barrel 1, respect...

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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...

Claims

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Application Information

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IPC IPC(8): B03D1/16
Inventor 孙玉金董宪姝李宏亮樊玉萍付亚峰姚素玲孙冬马晓敏彭德强侯金瑛陈茹霞冯泽宇
Owner TAIYUAN UNIV OF TECH
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