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Mechanical-injection high-efficiency defoaming device

A technology of eliminating foam device and mechanical spraying, applied in the direction of degassed water/sewage treatment, etc., can solve problems such as liquid film rupture, and achieve the effect of low operating cost, convenient and flexible installation, operation and management, and no environmental pollution.

Inactive Publication Date: 2013-05-22
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the various defoaming device patents presented at this stage, the simple use of mechanical force to rupture the liquid film will inevitably have many shortcomings in practical applications.

Method used

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  • Mechanical-injection high-efficiency defoaming device
  • Mechanical-injection high-efficiency defoaming device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] refer to figure 1 , the foam enters the Venturi tube through the inlet of the Venturi tube. The diameter of the foam suction port in the inlet circular tube section is 0.8 times the diameter of the foam outlet in the diffusion section. In the injection tube, the foam is stretched and Broken, and then enter the ceramic corrugated plate through four baffles, the fine bubbles are further spread on the filler, defoaming, and finally the liquid is discharged out of the main tank through the outlet.

Embodiment 2

[0045] refer to figure 1 , the foam enters the Venturi tube through the inlet of the Venturi tube. The diameter of the foam suction port in the inlet circular tube section is 1.0 times the diameter of the foam outlet in the diffusion section. In the injection tube, the foam is stretched and After being crushed, it enters the polypropylene orifice corrugated plate through eight baffle plates, and the fine bubbles are further spread on the packing, defoaming, and finally the liquid is discharged out of the main tank through the outlet.

Embodiment 3

[0047] refer to figure 1 , the foam enters the Venturi tube through the inlet of the Venturi tube. The diameter of the foam suction port in the inlet circular tube section is 1.2 times the diameter of the foam outlet in the diffusion section. In the injection tube, the foam is stretched and After being crushed, it enters the polypropylene wire mesh corrugated plate through eight baffle plates, and the fine bubbles are further spread on the packing, defoaming, and finally the liquid is discharged out of the main tank through the outlet.

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Abstract

The invention discloses a high-efficiency defoaming device using a mechanical injection defoaming mechanism. The device is provided with a Venturi pipe foam suction port, a foam injection pipe crushing pipe port, a deflector plate, a modified corrugated plate packing and a waste liquid discharge port. The device is designed according to the air suction effect, mechanical high-pressure foam injection defoaming mechanism and foam flow channel interface spreading properties: under the action of negative pressure generated in the Venturi pipe, the foam is sucked into the foam injection pipe, and a series of components in the injection pipe finally result in defoaming. The device overcomes the defects in the prior art, has the advantages of simple structure, operating cost, convenient operation management and favorable foam treatment effect, enhances the production efficiency, and protects the human environment.

Description

technical field [0001] The invention relates to a high-efficiency foam elimination device by mechanical jetting in the process of sewage treatment, which can be widely used to eliminate foam produced by surfactants, some high-molecular organic matter or microorganisms. Background technique [0002] The water treatment and fermentation industries are often troubled by the large amount of foam generated during production, resulting in low production efficiency. In practice, there are generally two ways to deal with foam: [0003] 1. Add chemical substances, such as using oil as a defoamer; or use strong oxidizing fungicides to control foam. Although the use of chemicals to eliminate foam has a certain time limit, it will increase the operating cost of the water treatment plant, and after the use of chemicals, it will have a great impact on the quality of the effluent and the treatment of the remaining substances will be a problem. Use surfactant to carry out defoaming in CN1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/20
Inventor 董彬常志东李文军孙长艳刘世香周花蕾车平
Owner UNIV OF SCI & TECH BEIJING
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