The large-volume flotation machine drew much attention from the 1990s. So far, the volume of the flotation cell has expanded to 300m³ to 500m³. However, in many cases, when the production companies expand the size of the impeller components and flotation value, the structure is not been adjusted. They often use the engineering design approach to solve problems based on the experience. In fact, the flotation machine should be adjusted according to the industry test design results. Since the flotation process is complex and there are a lot of affecting parameters, the design of the flotation machine has been still in the experience design stage.
The flotation machine is the main equipment in the ore separation line. At present, there are tens of kinds of flotation machines. According to the difference in inflatable ways and stirring ways, there is mechanical stirring flotation machine, inflatable flotation machine and so on. The mechanical stirring flotation machine is most widely used in China, and the domestic specification is XJK, which has radiant impellers.
In order to solve the problem of low efficiency for fine particles flotation in reverse flotation of bauxite ore, a deep pneumatic flotation machine was designed to improve the flotation efficiency of ultra-fine particles for bauxite reverse flotation, and experiments of this flotation machine were also systematically carried out in reverse flotation for Henan bauxite resources. The influences of flotation separator performance parameters on the separating efficiency were studied to get the optimal parameters. Then the effects of cell-depth on the fine particles flotation were investigated under the optimal parameters, and the relative effect factors were also determined by orthogonal test. To a service-oriented brand integrity, as the professional manufacturer of complete sets of mining machinery, like iron ore concentrator, Henan Hongxing is always doing the best in products and service.horizontal lime kiln: http://www.crusher-machine.com/n134.html
The fluent software was used to simulate fluid characteristics inside the flotation cell. Combining the measurements of air dispersion, the result of the flotation experiments and simulation was verified accurately. The result shows that the best flotation aeration rate is between 200 and 250L/h, and the optimal rotation speed is between 2000-2200rpm.The increase of cell depth is beneficial to the reverse flotation of bauxite ores. Deeper cell can not only increase the flotation recovery, but also can control the ratio of the tailings. In a word, the deeper pneumatic cell can greatly promote the flotation efficiency of ultra fine
Due to the negative pressure, it can return to the solid particles and air bubbles collision region, making hydrophobic particles not attached to bubbles with bubble again collision and mineralization, thereby increasing the particle flotation probability. The slurry of flotation machine through the impeller circulation, improved the speed of upwelling, and ensured the effective floating of coarse and heavy mineral particles. Except for the function of self-priming air, this flotation machine also has the function of self-priming slurry, so in the flotation process, the return of its intermediate product doesnt need the sand pump.