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How to Improve the Working Efficiency of Flotation Machine

12 October, 2012 at 7:30 am in Education

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Many procedures have been improved after the transformation from the combination of BF flotation machine and JJF flotation machine to the BF flotation machine. According to the statistics, the grade of the flotation concentrate has raised 0.5%, the grade of the flotation has falls 0.5%. From the statistics, the capacity of the mill is 55t/h, the percent of producing time is 92%, and the producing percent of the magnetic concentrate is 35%.

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.

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 increases of cell depth are 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.

From Jan to Apr of 2004, the grade of flotation concentrate is 65.38%, the grade of flotation tailing is 20.16%. From May to Nov of 2004, the grade the of flotation concentrate is 65.88%, the grade of flotation tailing is 19.66%, so every year the separation workshop can get 1321 tons concentrate than before. The price of the concentrate is 570yuan/t, which grade is 65%, and if the grade of concentrate rises 1%, the price raises 10 yuan/ton, so the separation workshop can get extra benefit of 4.33 million every year. After adopting BF-T flotation machine, we solve the problem of flotation index isn’t stable and make the enterprise great economical and social benefits.

In a word, the deeper pneumatic cell can greatly promote the flotation efficiency of ultra fine particles. The FLUENT software stimulation shows that the air dispersion increases with the increase of gas flow. As the professional manufacturer of complete sets of mining machinery, such as hydro cone crusher, Henan Hongxing is always doing the best in products and service.

As the professional manufacturer of complete sets of mining machinery, such as stone production line,belt conveyor, Henan Hongxing is always doing the best in products and service.

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