Continuous bubble scraping type multilayer inflatable bottom transmission type flotation machine

Abstract

The invention discloses a continuous bubble scraping type multilayer inflatable bottom transmission type flotation machine. The flotation machine comprises a flotation groove; a mechanical stirring device, an annular column type micro-bubble generator and a bubble scraping device are arranged inside the flotation groove; the mechanical stirring device is located below a mineralized bubble foam layer; the annular column type micro-bubble generator is arranged on the periphery and the upper part of an impeller in a three-layer annular column type mode, air is transversely led into a bottom circular ring of the micro-bubble generator through an opening in the side part of the bottom of the flotation groove, and the purpose of inflation is achieved; the bubble scraping operation adopts two scraping plates for continuous scraping alternatively, and a long-stroke transmission belt wheel is matched. According to the flotation machine, the existing flotation machine mechanical stirring deviceis arranged at the bottom, the problems of middle foam stagnation and secondary sedimentation of mineralized particles are solved, so that the flotation index is improved; the annular column type micro-bubble generator is used as an air inflation device so that the diameter of the bubbles can be reduced, the sedimentation area is reduced, and the foam layer is stable and controllable; and the scraping plates of the flotation machine are two alternative scraping plates, and the belt wheel transmission is adopted, so that the mineralized foam can be timely and continuously scraped, the secondarysedimentation is prevented, and the flotation recovery rate is improved.

Description

technical field [0001] The invention belongs to the technical field of beneficiation flotation equipment, in particular to a continuous bubble-scraping multi-layer inflatable bottom-driven flotation machine. Background technique [0002] The existing self-suction flotation machine uses a motor to drive the impeller to rotate, which generates centrifugal action to form a negative pressure. On the one hand, the tank body sucks enough air to combine with the ore pulp, on the other hand, it stirs the ore pulp to mix with the drug, and at the same time refines the foam. Make the mineral stick to the foam, float to the slurry surface and form mineralized foam. Adjust the height of the ram to control the liquid level so that the foam is scraped off by the scraper. [0003] More and more disadvantages have appeared in the traditional mechanical agitation flotation machine: (1) The bubble scraping area is small, the foam in the middle is easy to stagnate, and the secondary enrichmen...

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Problems solved by technology

[0006] In order to overcome the above-mentioned shortcoming of the prior art, the object of the present invention is to provide a kind of continuous scraping type multi-layer inflatable bottom drive type flotation machine, this flotation machine p

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