Honeycomb electrostatic precipitator equipmentprinciple

A purification device that utilizes the principle of different specific gravities between dust and gas to allow dust to naturally settle from the gas by its own gravity is commonly referred to as a settling chamber or birth chamber. It is a relatively primitive purification equipment with simple structure, large volume, low resistance, easy maintenance, and low efficiency, which can only be used for rough purification.

inertiadust collectorAlso known as an inert dust collector. Its principle is to use the difference in inertia force between dust and gas in motion to separate dust from gas. At this point, the dust particles are separated from the airflow due to its much greater inertial force than the gas, and the purified gas is discharged after a sharp change in direction. This type of dust collector has a simple structure, low resistance, and low purification efficiency. It is often used in one stage of multi-stage purification, concentration equipment during purification, or in combination with other purification equipment. Inertial dust collectors are commonly used in the form of louvers. Usually, some form of obstacle is placed in front of the dusty airflow to cause a sharp change in the direction of the airflow.

The working principle of the gravity dust chamber is shown in the following figure: the dusty gas enters the settling chamber from one side at a uniform horizontal velocity V, and the dust particles settle down at a settling velocity V. After running for t time, the dust particles settle at the bottom of the chamber. The purified gas is discharged from the outlet on the other side.

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Mechanical dust removal is the use of gravity settling, inertia, or centrifugal force to separate dust. Its dust removal efficiency is generally below 90%, with low dust removal efficiency, low resistance, and energy savings.

Dust removal equipment' style='white-space: normal; The development overview of honeycomb electrostatic precipitator technology is closely related to the application and development of dust removal technology in China's industrialization process. Dust removal techniques generally include mechanical dust removal, wet dust removal, electrostatic dust removal, and bag dust removal.

Wet dust removal utilizes the principle of gas-liquid contact washing to separate dust from dusty gases into liquid, in order to remove dust from the gas. Its dust removal efficiency is slightly higher than mechanical dust removal, but it is prone to secondary pollution of the washing liquid.

Electrostatic dust removal is the process of passing dusty gas through a strong electric field, which charges the dust particles. As they pass through the dust removal electrode, the positively/negatively charged particles are respectively adsorbed by the negative/positive electrode plates, thereby removing dust from the gas.Electrostatic precipitatorThe dust removal efficiency is relatively high, but its dust removal efficiency is greatly affected by the specific resistance of dust, which can easily lead to unstable dust removal efficiency. After the 1990s, JingElectrostatic precipitatorIt is widely used in the treatment of smoke and dust pollution in high temperature, large flue gas volume, and complex working conditions such as thermal power generation and cement kilns. Bag filter is a type of dust collector that uses fiber filter material to capture solid particles in dusty gases, forming a filtered dust cake, and further filtering fine dust particles through the filtered dust cake. The industrial process of honeycomb electrostatic precipitator is used to achieve dust removal.