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Thermoelectric compound stimulating type high-temperature smoke electrostatic processing device

A technology of electrostatic treatment and compound excitation, which is applied in the direction of electrostatic separation and power supply technology, can solve the problems of unstable electric field, corona breakdown, high power consumption, etc., and achieve the goal of reducing process difficulty, reducing production energy consumption, and high emission intensity Effect

Inactive Publication Date: 2012-07-25
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, in addition to the high power consumption of these technologies, most of them are accompanied by corona phenomenon in the process of technology realization, making it very difficult to apply in high temperature occasions (above 500-600°C); Very small, it is easy to produce corona breakdown under high voltage, causing the instability of the electric field and causing the equipment to work abnormally

Method used

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  • Thermoelectric compound stimulating type high-temperature smoke electrostatic processing device
  • Thermoelectric compound stimulating type high-temperature smoke electrostatic processing device
  • Thermoelectric compound stimulating type high-temperature smoke electrostatic processing device

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Embodiment Construction

[0022] Below to figure 1 and image 3 As an example, the present invention is further described:

[0023] figure 1 It is a schematic diagram of a dual-zone self-excited electronic radiation high-temperature flue gas processor. As shown in the figure, it includes an emitter plate, a settling zone plate and a dust collection plate, forming a first A dust collection area forms a second dust collection area before the settling area plate and the dust collection plate, so it is called a double area in this field. figure 2 It is a single area.

[0024] After the flue gas with high temperature above 800°C containing dust and harmful gas enters the device, the high-level thermal energy of the high-temperature flue gas itself heats the special emitter plate 2 made of low work function material, causing the electrons inside the material of the emitter plate 2 to It is highly activated, and breaks through the surface barrier of the material and escapes as free electrons.

[0025] T...

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Abstract

The invention discloses a thermoelectric compound stimulating type high-temperature smoke electrostatic processing device which comprises a shell, wherein a smoke inlet is arranged at the front end of the shell; a smoke outlet is arranged at the rear end of the shell; a dust outlet is arranged at the lower end of the shell; an emitting polar plate and a dust-collecting polar plate are arranged in the electrostatic processing device; and a collecting electric field is formed between the emitting polar plate and the dust-collecting polar plate. According to the invention, an electrostatic processing technology based on material electronic thermal emission is adopted; in the whole working process, no corona is generated, so that no risk of corona breakdown exists; firstly, low work function material is taken as an emitting electrode, secondly, an application environment must have a high-temperature heat source which is above 800 DEG C, the heat source serves as the main energy for stimulating free electrons in the emitting polar plate to break through the surface potential barrier of the material, and a test result shows that the technology can be applied to the environment with temperature being 800 DEG C and even above 1000 DEG C and the performance is very stable. The technology is the key breakthrough of electrostatic technology on the aspect of application in the field of high-temperature smoke processing.

Description

Technical field: [0001] The invention relates to a flue gas treatment device integrating gas-solid separation (or dust removal) of flue gas, gas conditioning and pretreatment. Background technique: [0002] At present, the electrostatic treatment technologies for flue gas containing harmful components such as dust, sulfur oxides, and nitrogen oxides include electrostatic dust removal technology, electron beam irradiation desulfurization and denitrification technology, pulsed corona plasma desulfurization and denitrification technology, and charged dry absorbent injection technology. Desulfurization technology, etc.; these technologies are based on high-voltage or high-power electric energy, so as to promote the capture of dust after charging, efficient chemical reaction of absorbent after charging, gas dissociation activation or catalytic oxidation The form reorganization is transformed due to the situation. Therefore, in addition to the high power consumption of these tec...

Claims

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Application Information

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IPC IPC(8): B03C3/34B03C3/66
Inventor 杨亚平
Owner SOUTHEAST UNIV
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