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A metal-ceramic electrostatic precipitator pole matching type and dust cleaning method

A technology of cermets and electrostatic precipitators, which is applied in the direction of electrode cleaning, electrode structure, external electrostatic separator, etc., can solve the problems of wet electrostatic precipitator dust collection plate cannot be formed, water film and body corrosion, etc., to achieve uniform distribution Effects of promoting, saving water and reducing water consumption

Inactive Publication Date: 2018-01-05
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The invention provides a metal-ceramic electrostatic precipitator pole matching type and its cleaning method to solve the problems that a complete and uniform water film cannot be formed on the dust collecting plate of the wet electrostatic precipitator and the body is corroded, so that the electric precipitator can be used On the basis of stable operation of coal-fired power plants, it can reduce investment costs, reduce corrosion, save water consumption, and improve dust removal efficiency, especially the present invention can be applied to high-temperature flue gas environments

Method used

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  • A metal-ceramic electrostatic precipitator pole matching type and dust cleaning method
  • A metal-ceramic electrostatic precipitator pole matching type and dust cleaning method
  • A metal-ceramic electrostatic precipitator pole matching type and dust cleaning method

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Embodiment

[0024] Example: such as figure 1 As shown, there are mainly: 1 shell of metal ceramic electrostatic precipitator; 2 metal ceramic dust collector plate; 3 flue gas inlet; 4 flue gas outlet; 5 ash bucket; ; 8 ash cleaning water uniform distribution device; 9 air blowing device. The metal-ceramic dust-collecting pole plate 2 is connected with the shell 1 of the metal-ceramic electrostatic precipitator, and is well sealed. The cermet corona electrode 7 is placed in the center of the top of the cermet electrostatic precipitator shell 1 . The ash removal water uniform distribution device 8 is arranged on the top of the cermet dust collection plate 2, and supplies ash removal water thereto. The pneumatic blowing system 9 is connected with the inner hollow part of the cermet dust collecting plate 2 and the cermet corona electrode 9 . The ash removal water treatment device 6 is connected to the ash hopper 5 . Such as figure 2 As shown, the surface of the metal-ceramic dust-collec...

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Abstract

The invention provides a pole matching type of a cermet electric dust collector and a dust cleaning method thereof. Its characteristics are: the dust collection pole and corona pole are made of cermet materials with high temperature resistance, corrosion resistance, high strength and good conductivity. The micropores can be used for high temperature and normal temperature flue gas dust removal. The interior of the corona electrode is a hollow structure, and the air blowing device is used to spray and clean the corona electrode in reverse; the dust collection electrode can adopt two cleaning methods: dry air blowing and wet microporous water seepage; During wet cleaning, the microporous structure of the dust collecting pole produces capillary action on the cleaning water, which ensures the uniform distribution of the cleaning water film on the surface of the plate and avoids the corrosion of the plate.

Description

Technical field [0001] The invention belongs to environmental protection equipment, in particular to a pole matching type of a cermet electric dust collector and a dust cleaning method thereof. Background technique [0002] The wet electrostatic precipitator uses a layer of water film formed on the dust collecting plate to clean the dust collected on the plate. Compared with the dry electrostatic precipitator: the wet electrostatic precipitator does not require a rapping device, thereby eliminating the secondary dust caused by the rapping, and also preventing the secondary dust caused by the air flow and corona wind; because the electrode plate is always distributed With the water film flowing downward, the dust (smoke) captured on the plate is immediately washed away by the water film, so for high specific resistance dust (smoke), no back corona will occur, avoiding the resulting Secondary dust: For low specific resistance dust (smoke dust), the trapped particles will not ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03C3/16B03C3/53B03C3/80B03C3/78
Inventor 崔少平齐立强王丽丽曾芳
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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