Pulse-Jet Bag Filter

Large-scale modular box-type equipment, vertically divided into three sections: upper housing (clean air plenum), middle housing (filtration chamber), and lower housing (ash hopper). The middle housing contains numerous filter bags suspended inside; the housing exterior is equipped with a pulse-jet cleaning system (air manifold, solenoid pulse valves, blow pipes). The bottom ash hopper is fitted with a dust discharge device. The overall structure is square/rectangular and can be installed indoors or outdoors on the ground.

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Waste Gas Treatment VOC Concentrator Waste water treatment Chemical reactor Fine Chemical EPC

Product Description

Product Advantage

Product Uses

Fibrous filtration combined with pulse-jet cleaning. Dust-laden gas enters the filtration chamber, passes through the fabric of the filter bags, and dust particles are captured on the outer surface of the bags by mechanisms including sieving, interception, and adhesion. Clean gas penetrates the filter bags, enters the clean air plenum, and is discharged. When the equipment resistance reaches the set point, compressed air is injected in a momentary pulse, causing the bags to shake off the accumulated dust into the ash hopper, thereby regenerating the filter bags and enabling continuous operation.

Filtration flow

Dust-laden gas inlet

filtration through filter bags in the middle housing

clean air plenum in the upper housing

clean gas discharge

Cleaning flow

Resistance exceeds set point

pulse valve injects compressed air

bag shaking and dust shedding

dust falls into ash hopper

mechanical dust discharge

Extremely high dust collection efficiency (≥99.9%), capable of capturing fine dust down to 0.3 μm; stable emission performance; wide range of filter media options providing strong adaptability to process conditions.
Disadvantages: Requires periodic filter bag replacement; not resistant to high humidity or highly adhesive dust; high-temperature applications require special high-temperature filter media.

Fine dust removal in industries such as power generation, steel, cement, chemicals, waste incineration, and woodworking; a mainstream high-efficiency dry dust collection device.