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Plasma liquid phase treatment device and method for fly ash

A processing device and processing method technology, applied in chemical instruments and methods, chemical/physical/physical chemical processes, chemical/physical processes and other directions of energy application, can solve the problems of complex devices and high operating energy consumption, and reduce device operation. Low energy consumption, low operating energy consumption, high efficiency and non-toxic treatment effect

Pending Publication Date: 2020-06-19
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method operates at normal temperature and pressure, and requires pretreatment of fly ash, and the device is complicated and the energy consumption is high.

Method used

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  • Plasma liquid phase treatment device and method for fly ash

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Embodiment 1

[0040] A plasma liquid phase processing device for fly ash according to the present invention is as figure 1 As shown, the device includes a high-voltage power supply 1 and a reactor; the reactor is cylindrical and includes a housing 2, a needle electrode 3 and a plate electrode 4 disposed in the housing 2, and the lower part of the housing 2 is provided with an air inlet 6 , the upper part is provided with an exhaust hole 7, and the needle electrode 3 includes a circular electrode plate 31, and conical electrodes 32 of equal size are evenly distributed on the electrode plate 31;

[0041] The needle electrode 3 is connected to the top of the housing 2 through an insulator 8, and the plate electrode 4 has the same area as the bottom of the housing 2 and is attached and fixed. The center lines coincide, and a fly ash processing chamber 5 is formed between the needle electrode 3 and the plate electrode 4 .

[0042] The shell 2 is made of polytetrafluoroethylene; the needle elect...

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Abstract

The invention relates to the field of garbage fly ash treatment, and discloses a plasma liquid phase treatment device and method for fly ash. The device comprises a high-voltage power supply and a reactor, and the reactor comprises a shell, and a needle electrode and a plate electrode which are arranged in the shell, the needle electrode comprises an electrode plate and a conical electrode, and the top of the conical electrode faces the plate electrode. The device is simple in structure, low in operation energy consumption and easy for power amplification. The method comprises that under the high-voltage power supply, strong streamer discharge is formed between the conical electrode and the liquid level, bubbles generated by carrier gas in a liquid phase also generate streamer discharge, and generated low-temperature plasmas enter the liquid through the liquid level or bubble breakage and are in contact with fly ash in the liquid, so that degradation treatment on the fly ash is realized. When the device is used for treating the fly ash, the toxicity of the treated fly ash and leachate can be effectively reduced, and the problems of pretreatment and retreatment on the fly ash are avoided.

Description

technical field [0001] The invention relates to the field of garbage fly ash treatment, in particular to a plasma liquid liquid phase treatment device and method for fly ash. Background technique [0002] With the development of society, people's daily life produces a large amount of domestic waste, which poses a serious threat to the ecological environment and becomes an important factor restricting the sustainable development of society. Waste incineration technology has the advantages of significant reduction effect, land saving, etc., and realizes resource recycling through waste incineration power generation, so it has become one of the main treatment methods for urban waste. [0003] Garbage contains a large amount of chemical substances such as sodium chloride and potassium chloride, as well as organic substances such as petroleum products and chlorine-containing plastics. During the incineration process, persistent organic pollutants such as dioxins will be produced,...

Claims

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Application Information

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IPC IPC(8): B01J19/08
CPCB01J19/088
Inventor 刘振郑钦臻闫克平杨林屠璇
Owner ZHEJIANG UNIV
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