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Method for adding rich oxygen in liquid waste treatment process

A technology for waste liquid treatment and oxygen enrichment, which is applied in the method of container discharge, oxidized water/sewage treatment, gas/liquid distribution and storage, etc. It can solve the problems of insufficient oxygen concentration and high energy consumption of compressors, and reduce energy consumption. , The effect of reducing the oxygen content of the compressed gas

Inactive Publication Date: 2013-12-18
湖北和远气体股份有限公司
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  • Application Information

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Problems solved by technology

Due to this limitation, the oxygen concentration of the reactor cannot be increased, and sometimes the reactor requires a higher concentration of oxygen-enriched air, and this process cannot meet the
In addition, the compressor compresses the entire gas volume used, and the energy consumption of the compressor is relatively high.

Method used

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  • Method for adding rich oxygen in liquid waste treatment process
  • Method for adding rich oxygen in liquid waste treatment process

Examples

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Embodiment Construction

[0015] Such as figure 2 As shown, a method of adding oxygen enrichment in the waste liquid treatment process, the air is compressed by an air compressor to increase the pressure to 8~10MPa. The liquid oxygen stored in the cryogenic liquid storage tank is boosted by the cryogenic pump, and then vaporized into gas by the high-pressure vaporizer, and the pressure also reaches 8~10MPa. After the gasified oxygen and the compressed air are mixed in a certain proportion, the oxygen content reaches 30%~50%, and the mixed oxygen-enriched air enters the waste liquid reactor for use. The gasified oxygen is mixed with the compressed air in a certain ratio, and the mixing ratio is adjusted to meet the requirements by adjusting the rotation speed of the cryopump or adjusting the flow rate of the oxygen by a pneumatic valve.

[0016] For example: when the standard volume ratio of air and oxygen is 1:0.13, the oxygen content of the mixture is 30%, and when the standard volume ratio of air a...

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Abstract

The invention discloses a method for adding rich oxygen in a liquid waste treatment process. The method comprises the following steps of compressing air by an air compressor and improving the pressure to 8-10 MPa; gasifying liquid oxygen stored in a low-temperature liquid storage tank into a gas through a high-pressure evaporator by pressurizing through a low-temperature pump, wherein the pressure also achieves 8-10 MPa, and the oxygen content achieves 30-50% after the gasified oxygen and the compressed air are mixed according to a certain ratio; oxygen-enriched air enters a liquid waste reaction kettle to utilize after being mixed. By adopting the method for adding rich oxygen in the liquid waste treatment process disclosed by the invention, the position of adding oxygen is transformed; the safety of the compressor is improved; energy consumption of the compressor is reduced.

Description

technical field [0001] The invention relates to a method for adding oxygen-enriched liquid in the waste liquid treatment process, which relates to the field of chemical sewage treatment. Background technique [0002] In the process of processing high-difficulty chemical waste through chemical reaction, it is often necessary to feed a certain pressure of oxygen-rich (for example: pressure of 8~10Mpa, oxygen content of 30%~50%) into the reactor for reaction. Among them, oxygen participates in the reaction and oxidizes certain substances in the waste liquid, while the main function of nitrogen is to play a protective role and not to participate in the reaction. [0003] Because the oxygen content in the air is only 21%, and the reaction needs to be rich in oxygen, the oxygen content is generally 30% to 50%. The existing gas supply method is to vaporize liquid oxygen into lower-pressure oxygen through a low-pressure vaporizer, mix it with air in a certain proportion to a certai...

Claims

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Application Information

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IPC IPC(8): F17C7/04F17D3/12C02F1/74
Inventor 何洁杨涛焦文艺黄万祥杜大艳
Owner 湖北和远气体股份有限公司
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