Electric dust remover with filtration type porous anode plates

Abstract

The invention discloses an electric dust remover with filtration type porous anode plates. The dust remover comprises three or more anode straps arranged in parallel. A plurality of corona electrodesare arranged between every two adjacent anode straps. Each anode strap is composed of a plurality of anode plates arranged side by side. The anode plates located on the inner side are provided with through holes allowing smoke to pass through. Flow plug dust collection plates are arranged at the two ends, namely the air inlet end and the air outlet end, of each anode strap and used for changing gas flow paths of the electric dust remover, and has the dust adsorption function. Porous dust collection plates are further arranged at the air outlet ends and used for further adsorbing dust and adjusting the gas flow paths.

Description

technical field [0001] The invention relates to the technical field of dust removal, in particular to an electric dust collector with a filter type porous anode plate. Background technique [0002] Electric dust removal is one of the most widely used methods of gas dust removal. The dust-containing gas is electrically separated when it passes through a high-voltage electric field, and the dust particles are combined with negative ions to be negatively charged, and tend to discharge and deposit on the surface of the anode. It is generally used in thermal power, metallurgy, cement, chemical and other industries to purify gas or recover useful dust particles. [0003] In the existing electrostatic precipitator, due to the large distance between the positive and negative plates, some particles with a diameter of less than or equal to 2.5 microns in the flue gas have been charged on the positive plate before they have time to move and attach to the positive plate after being cha...

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Problems solved by technology

[0003] In the existing electrostatic precipitator, due to the large distance between the positive and negative plates, some particles with a diameter of less than or equal to 2.5 microns in the flue gas have been charged on the positive plate before they have time to move and attach to the positive plate after being charged in the airflow. The air flow passes through the electric field area between the positive and negative plates; if the speed of the air flow is reduced to make it stay in the electric field for a longer time, the particles that can be adsorbed and collected by the electrostatic precipitator will increase significantly, so as to meet the requirements of environmental protection on particles. Emission treatment requirements, but the work efficiency will be greatly reduced, and the investment and floor area will be greatly increased

Existing electrostatic precipitators cannot further remove very fine dust in large-flow gas, and the amount of dust in the discharged flue gas is generally above 40 mg / m3, and most of the discharged dust belongs to lung-infiltrating particulate matter

When the traditional electrostatic precipitator is used to remove dust from the boiler of the power plant, it usually uses a dust collector composed of 3 to 5 electric fields connected in series. It has the characteristics of large gas volume per unit time and good effect of removing larger particles of dust. However, as the country’s environmental protection standards for flue gas discharged from power plants continue to increase, it is difficult to effectively remove the fine dust such as PM2. Due to the inability to efficiently remove PM2.5, it is difficult for a large number of power generation boilers in my country to meet the new environmental protection standards for exhaust gas from power plant boilers. Therefore, there is an urgent need for a more efficient solution that can meet both work efficiency requirements and emission quality requirements. Advanced scientific electrostatic precipitator

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