Innovative microbubble flotation of flotation machine

 The dual-flow microbubble flotation method is a compressed air flotation method that realizes the pulping process and the separation process. The unique microbubble mineralizer and slurry release head design of the trough-type dual-flow flotation machine increases the precipitation of bubbles. The surface area increases the contact area between the concentrate and the microbubbles, and the mineralization efficiency is correspondingly improved. In the flotation process of the trough-type dual-flow microbubble flotation machine, the coal slurry will be pumped out of the mixing tank by a pump and then pumped into the slurry distribution header of the trough-type microbubble flotation machine, and then distributed evenly to multiple groups of minerals The mineralization unit of the carburetor passes through the mineralizer, the inverted U-shaped mineralization tube, and finally is sprayed out of the tube by the nozzle. The air will be pressed into the mineralization unit under a certain pressure, and a large number of tiny bubbles will be formed through the microporous tube in the mineralizer. The bubbles and coal slurry complete the mineralization process in the mineralization tube, and finally sprayed to In the sorting tank, at this time, the pressure drops sharply, and a large number of bubbles merged into the coal slurry are formed and precipitated quickly. The coal particles float up to the surface of the flotation tank, overflow naturally along the periphery and enter the clean coal collection tank. A small amount of fine bubbles and A large amount of intermediate density materials enter the medium coal tank, and the tailings will enter the tailings tank through the U-shaped tube, which plays a role in adjusting the liquid level.

It adopts a multi-tank structure similar to the traditional mechanical agitation flotation machine. The upper part of the tank body is a rectangular connected structure, and there is an overflow tank on the periphery to discharge the clean coal. A rectangular diversion tank is opened on the overflow to increase the overflow. The perimeter is convenient to allow the clean coal to flow out smoothly. There are multiple pyramids of the same size in the lower part of the tank, and the lower part of each pyramid has an underflow outlet and a circulation outlet.

In order to further reduce the total height of the flotation machine body, so as to facilitate the disassembly, inspection and maintenance of the flotation machine related accessories, the mineralized coal slurry will enter the inverted U-shaped mineralization tube at a high speed and be in a state of high turbulence in the tube. Continuously fold back and collide for secondary mineralization, and eventually it will be ejected from the lower end release head.

The complete flotation process of the trough-type dual-flow microbubble flotation machine is a set of two flotation processes with main washing. The underflow of the main washing tank body enters the rewashing buffer barrel, and is pumped into the rewashing tank body. The overflow of the main washing flotation body is used as the final clean coal. The main washing buffer barrel is arranged in the rewashing material buffer barrel, and the rewashing buffer barrel and the rewashing tank body are integratedly arranged, which saves space to the greatest extent.

On the basis of the integration of the previous flotation machine, the trough type dual-flow microbubble flotation machine further increases the processing capacity of the flotation machine, reduces the height of the flotation machine body, and optimizes the entire process. It is a dual-flow microbubble flotation machine. A breakthrough in the serialization of the separator product will further enhance the technical advantages and market competitiveness of the dual-fluid microbubble flotation machine.

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