Hydraulic-acoustic streaming cavitation microbubble generator and working method thereof

A technology of micro-bubble generator and bubble generator, applied in chemical instruments and methods, mixing methods, fluid mixers, etc. Obtain the flotation effect and other issues, achieve the effect of strong adaptability, improve mineral separation effect, and improve equipment efficiency

Inactive Publication Date: 2019-11-12
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the cavitation intensity of hydrodynamic cavitation is far less than that of ultrasonic cavitation, and it is often not enough for some

Method used

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  • Hydraulic-acoustic streaming cavitation microbubble generator and working method thereof
  • Hydraulic-acoustic streaming cavitation microbubble generator and working method thereof

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Embodiment Construction

[0024] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0025] Such as figure 1 with figure 2 As shown, the hydraulic-acoustic flow cavitation microbubble generator of the present invention is characterized in that: it comprises a square Venturi tube bubble generator and an ultrasonic generator, and the Venturi tube bubble generator 4 comprises a square housing 4-4 , the square housing 4-4 ​​is provided with an air inlet 4-3 opposite to each other up and down, and the left and right sides of the square housing 4-4 ​​are oppositely provided with two pipelines 5, wherein one pipeline 5 is in the Venturi tube bubble generator 4 is provided with a contraction zone pipeline 4-1 inside, and another branch pipeline 5 is provided with a divergence zone pipeline 4-2 inside the Venturi tube bubble generator 4, a contraction zone pipeline 4-1 and a divergence zone pipeline 4- 2 are arranged oppositely, and jus...

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Abstract

The invention provides a hydraulic-acoustic streaming cavitation microbubble generator and a working method thereof. The microbubble generator is suitable for use in mineral slurry mixing. The generator comprises a square Venturi tube bubble generator and an ultrasonic generator, the corresponding positions of the upper and lower parts of the Venturi tube bubble generator are respectively providedwith one air inlet, the corresponding positions of the left and right sides are respectively provided with a contraction zone pipeline and a divergence zone pipeline, and the contraction zone pipeline and the divergence zone pipeline are relatively arranged and corresponding to the two air inlet positions. According to the microbubble generator provided by the invention, pressurized mineral slurry enters the contraction zone pipeline of the Venturi tube from a pipeline, after the mineral slurry enters the divergence zone pipeline from the contraction zone pipeline of the Venturi tube bubble generator, the pressure changes, so that a large amount of air bubbles are generated from the mineral slurry, when the mineral slurry flows towards the divergence zone pipeline from the contraction zone pipeline of the Venturi tube bubble generator, negative pressure is generated, air is sucked into the Venturi tube bubble generator by the two air inlets, and the sucked air is dissolved into the mineral slurry to generate the air bubbles; and the microbubble generator has a simple structure, a good bubble foaming effect, and stronger adaptability to bubble size requirements for sorting of minerals with different fine particle sizes.

Description

technical field [0001] The invention relates to a microbubble generating device and method, in particular to a hydraulic-acoustic cavitation microbubble generator and method suitable for flotation of <0.5mm fine-grained minerals used in pulp mixing. Background technique [0002] Flotation is an effective means of sorting fine and microfine minerals, but with the development of mechanized large-scale mining, coal particles are more and more severely broken, resulting in finer and finer particle sizes of flotation feed materials, and conventional flotation air bubbles The bubbles generated by the generator are large, and it is difficult to obtain better flotation recovery and selectivity. Compared with large bubbles, microbubbles have obvious advantages. Collision probability, and helps to reduce the probability of desorption of coarse particles, etc. Therefore, it is particularly important to design a microbubble generator. [0003] Cavitation refers to the formation, dev...

Claims

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Application Information

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IPC IPC(8): B03D1/02B03D1/14B01F3/04B01F5/04
CPCB03D1/02B03D1/14B01F23/20B01F25/312
Inventor 毛玉强谢广元卜祥宁彭耀丽夏文成王天威
Owner CHINA UNIV OF MINING & TECH
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