Industrial dust removal equipment is mainly used to capture dust, soot and particulate matter in production waste gas. According to dust removal principles, it is divided into four categories: mechanical dust removal, filtration dust removal, electrostatic dust removal and wet dust removal. The following explains their working principles, advantages and disadvantages, applicable working conditions and core parameters one by one.
Working Principle
After entering the cylinder, the dust-laden airflow rotates at high speed. The dust is thrown to the cylinder wall by centrifugal force, falls into the ash hopper along the wall, and the purified gas is discharged from the top.
Features
Applicable Scenarios
Woodworking processing, sand and gravel crushing, grain processing, primary boiler dust removal, dust from material conveying, mostly used as front-end pretreatment equipment.
Working Principle
Dust-laden gas passes through filter bags, and dust is intercepted on the outer surface of the filter bags. Pulse jet compressed air is used regularly for dust cleaning, and the dust falls into the ash hopper for collection. It is divided into pulse bag type, air box pulse type, long bag low pressure type and other types.
Features
Applicable Scenarios
Cement, metallurgy, building materials, woodworking, mechanical grinding, chemical industry, small boilers. It is the most widely used mainstream dust removal equipment in industry.
Working Principle
A high-voltage electric field charges dust particles. The charged dust is adsorbed to the collecting plates and discharge wires under the action of electric field force, and the dust is cleaned and collected by rapping.
Features
Applicable Scenarios
Dust removal for super-large industrial flue gas from thermal power plants, large kilns, steel sintering machines, kiln tails of large cement plants, etc.
Including spray towers, water bath dust collectors, Venturi dust collectors, etc.
Working Principle
It uses water or washing liquid to fully contact with dust-laden gas, and realizes dust separation through droplet adsorption and wetting. Some models can simultaneously remove harmful gases.