Electrostatic precipitator working principle?

Electrostatic Precipitator (ElectrostaticPrecipitator or ESP for short) is a kind of dust removal device that uses electrostatic force to realize the separation of particles from gas. Electrostatic precipitator discharge electrode (also known as corona pole) and dust collection pole (also known as dust collection pole) connected with a high-voltage DC power supply, when the dust-containing gas passes through the non-uniform high-voltage electric field between the two poles, in the discharge electrode around the role of the strong electric field force, the gas is first ionized, and make the dust particles charged, charged dust particles in the electric field force in the electric field to the collection of the dust pole migrate and deposited in the collection of the pole to be separated from the gas and collected, thereby achieving the purpose of dust removal. Collected, so as to achieve the purpose of dust removal.

The dust removal process of the electrostatic precipitator consists of four stages: ① gas ionization; ② dust to get away from the pre-electricity; ③ charged dust to the electrode to move; ④ electrode on the removal of dust to the dust hopper.

(1) corona discharge and dust charge

①Corona discharge

②Dust charge

There are two kinds of charging mechanism of dust particles, one is electric field charging, the other is diffusion charging. Electric field charge refers to the corona electric field electrons in the electric field force under the action of directional movement, and dust particles collision with the dust particles to charge the way. Diffusion charging refers to the way in which electrons contact the surface of dust particles due to thermal movement, causing the dust to be charged.

The manner in which dust particles are charged is related to particle size.

(2) Charged dust particles movement and capture

Dust particles charged, under the action of the electric field force, according to the polarity of its charge and the polarity of the electrode to the opposite polarity of the movement, and deposited on it.

(3) the removal of arrested dust

The dust on the surface of the dust collection pole is deposited to a certain thickness, in order to ensure the discharge effect, to prevent the dust from re-entering the airflow, it is necessary to remove it, so that it falls into the dust hopper, the corona pole will also be attached to a small amount of dust, which affects the size of the corona current and the uniformity of the intermittent period of time must be removed.

The corona pole is generally cleaned by mechanical vibration. Dust collection pole cleaning method in dry and wet dust collector is different. Nowadays, most of the electric dust collectors use electromagnetic vibration or hammer vibration to clear the dust, and the two commonly used vibrators are electromagnetic type and scrambler hammer type.

More about the engineering/service/procurement category of the tender writing production, enhance the winning rate, you can click the bottom of the official website customer service free consultation:/#/?source=bdzd