Gas Box Pulse Bag Filter

The gas box pulse bag dust collector is an industrial dust removal equipment that adopts the "sub box room pulse cleaning" technology. Its core advantages are resistance to high concentration dust, no secondary dust during dust cleaning, and stable operation. It is widely used in industries such as cement, metallurgy, chemical, and coal. It can effectively treat gases with dust concentrations of 1000-3000g/m ³, and has a filtration efficiency of over 90% for dust particles with a particle size of 0.3 μ m or more. It is a key equipment for the treatment of high concentration and high air volume dust.

From the perspective of structural design, the core of the equipment consists of a multi unit air box, a bag filter system, a sub box pulse cleaning device, an inlet air flow equalization system, and an ash discharge device. The main body adopts a modular design of split boxes, dividing the box into 3-12 independent air boxes, each corresponding to an independent filter bag group and cleaning system, which can be controlled separately for cleaning; High temperature resistant (based on actual reports) and wear-resistant (based on actual reports) PPS, Nomex and other filter materials are commonly used for filter bags, with a length of 2-4m. The filter bag mouth is sealed with an elastic expansion ring to confirm no dust leakage; The sub box pulse dust cleaning device is equipped with pulse valves and spray pipes according to the gas box unit, with a spray pressure of 0.4-0.6MPa. During dust cleaning, only the inlet and outlet valves of a single gas box are closed, and other gas boxes are filtered normally; The inlet air flow equalization system distributes high concentration dusty gases evenly to each air box through the wind deflector and guide pipe, avoiding local filter bag overload.

The core of its working principle is "alternate cleaning of dust in the compartment": dusty gas enters through the air inlet and is distributed to each air box through the uniform flow system. The dust is trapped on the outer surface of the filter bag, and the purified gas passes through the filter bag into the clean air chamber and is discharged through the main air outlet; When the resistance of the filter bag in a certain air box reaches the set value (1500-1800Pa), the system closes the inlet and outlet valves of the air box, and the pulse valve starts to spray and clean the dust. After the dust falls into the ash hopper, the air box returns to the inlet and outlet and enters the filtering state; Each air box is cleaned alternately in sequence, without interrupting the overall dust removal operation, to ensure continuous and stable operation.

Compared with conventional dust collectors that mainly focus on clinical effects, their advantages are significant: they have good resistance to high concentrations, and the box design can cope with high concentration dust, avoiding secondary adsorption of dust during dust cleaning; Thoroughly clean the dust, independently clean the dust in a single air box, concentrate the blowing energy, and achieve a dust stripping rate of over 90%; Continuous operation, alternating dust cleaning without stopping, suitable for continuous production scenarios; Easy maintenance, a single air box can be independently inspected without affecting the operation of other units. Attention during use: Regularly check the sealing components of the air box to prevent air leakage; Select suitable filter materials based on dust characteristics to avoid filter material blockage; The ash hopper needs to be equipped with heating or insulation devices to prevent high humidity dust condensation. Overall, the pneumatic pulse bag filter has become the preferred equipment for industries with high concentrations of dust due to its advantages in separating and cleaning dust, providing protection for enterprises to achieve effective dust removal and continuous production.