Bubble generator in air floatation rotary-splitting coupling technique

Abstract

The present invention discloses a bubble generator in air floatation rotary-splitting coupling separating technique. The air bubble comprises an outer pipe and a microporous membrane pipe. The outer pipe is installed with an inflation inlet. The microporous membrane pipe is inserted into the outer pipe and is connected with the outer pipe through sealed connection. An annular chamber structure isformed between the microporous membrane pipe and the outer pipe. The inflation inlet is communicated with the annular cavity. The structure of the invention is simple and the detachment is convenient.The inflation from the outside to the inside is used for generating bubbles in the pipe and mixing with the liquid. The contact time between the bubbles and the particles is increased. The air floatation effect is good and the high-speed fluid flow in the microporous membrane pipe is used for backwashing the wall of microporous membrane pipe.

Description

technical field [0001] The invention relates to a bubble generator in an air flotation cyclone coupling separation process. Background technique [0002] At present, in the air flotation cyclone separation coupling separation process, in order to form a light phase, it is often necessary to pass bubbles into the mixed liquid. The size of the bubbles is close to the size of the particles to be separated, and the separation effect is better. For example, for the separation of 10-100 microns in seawater The algae particles need to pass through the air bubbles with a size of 10-100 microns for the best separation effect, and the more fully they are mixed with the mixed liquid, the higher the separation efficiency will be. In the prior art, porous materials are mostly added to the wall of the cyclone, so that the charged compressed air enters the cyclone through the porous material, so that air bubbles are generated on the wall of the cyclone to carry out the air flotation cyclon...

AI Technical Summary

Problems solved by technology

In the prior art, porous materials are mostly added to the wall of the cyclone, so that the charged compressed air enters the cyclone through the porous material, so that air bubbles are generated on the wall of the cyclone to carry out the air flotation cyclone separation process , due to the high speed of cyclone separation, it is difficult to ensure the time for the air bubbles to fully combine with the mixed liquid required for air flotation, and the bubbles generated on the wall of the cyclone are not uniform and fine enough. Therefore, air flotation The effect is not good. In addition, this foaming device is not easy to backwash

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