The FMQD air box pulse dust collector consists of a shell, ash hopper, ash discharge device, bracket, and pulse cleaning system. It is made by integrating the advantages of various bag filters such as chamber blowback and jet pulse cleaning. This FMQD gas box pulse bag filter can be widely used in crushing installation, warehouse roof, cooling machine, grinding machine and other collection systems in cement plants.

This series of products has a total of 33 specifications, with four types of bags in each room: 32, 64, 96, and 128 bags. The length of the dust removal filter bag is 2450mm and 3060mm, respectively. The dust collection efficiency can reach over 90%, and the dust concentration of the purified gas is less than 100mg/m3 (standard). If this series of bag filters is used in cold regions, a heating device should be installed when the outdoor heating calculation temperature is ≤ -25 ℃.

The characteristic of FMQD gas box pulse dust collector is to use separate chambers for cleaning alternately, that is, offline cleaning. When a certain room is being blown for dust cleaning, the filtered airflow is cut off, avoiding the secondary flying of dust generated by the blowing. Therefore, the FMQD gas box pulse bag filter can capture gas with a moisture content of up to 1000G/M3. The characteristic of the blowing pulse bag filter is that it is in the same dust removal room, and each row of bags takes turns blowing for dust cleaning, and the dust filter continues to work during dust cleaning, which is called online dust cleaning. The dust blown down by this cleaning method will cause secondary flying, and some of the flying dust will be captured again by adjacent filter bags. If the jet pulse bag dust collector is used to capture gases with high dust concentration, the phenomenon of secondary dust flying is severe, so the application of the jet pulse cleaning bag dust collector is limited.

The FMQD gas box pulse dust collector can be widely used in the crushing installation, warehouse roof, cooling machine, and grinding system of cement plants.

Selection of operating temperature and filter material for FMQD type pneumatic pulse bag filter:

The operating temperature is closely related to the selection of filter media. The allowable temperature of dusty gas at the inlet of FMQD type gas box pulse bag filter varies depending on the filter material. When using polyester needle punched felt filter material, the allowable continuous use temperature is ≤ 120 ℃. When using aramid needle punched felt (Nomex), the allowable use temperature can reach 200 ℃. When using polypropylene needle punched felt, the allowable use temperature is 90 ℃. When the temperature exceeds the allowable range of each filter material, cooling measures should be taken before the gas enters the dust collector. Other filter materials include: three proof dust removal bag, easy to clean dust removal bag, 208 dust removal bag, dust removal bag, Flumes dust removal bag, fiberglass needle punched felt dust removal bag, Metas dust removal bag and other high-temperature dust removal filter bags.

Model Description

FMQDXX-a×b

F: Gas-phase type

M: Pulse

Q: Dust collector

D: Spiral conveyor, air conveying chute

XX: Number of filter bags in each room

a: Number of rooms per column

b: Number of columns (single column not labeled)

Technical Parameter