InstalledCase study

Pulse-jet industrial dust collector

Pulse-jet dust collectors for dust extraction and containment. ValensAir has developed its own industrial dust collector, installed and in service in the pharmaceutical industry.

Project facts

Equipment
Industrial dust collector
Type
Pulse-jet bag filter
Status
Installed and in service
Industry
Pharmaceutical

The requirement

Pharmaceutical processes such as granulation, milling, blending and compression generate fine powder that has to be captured at source, separated from the air and discharged safely, protecting both the product and the people.

The solution

ValensAir developed a pulse-jet bag filter dust collector and installed it at the pharmaceutical plant. Dust-laden air is filtered through bags, the bags are cleaned by compressed-air pulses, and collected dust is discharged through the hopper.

How it works

A dust collector separates particles from process air before it is discharged or returned. Dust-laden air passes through filter bags or cartridges; particles build up on the outer surface and clean air passes through. Short pulses of compressed air periodically knock the dust cake into the hopper so the filters keep working.

Pulse-jet dust collector, operating principle Dust-laden air enters the lower chamber and passes through filter bags from outside to inside. Dust builds up on the bag surface while clean air rises into the plenum and is drawn out by the fan. Periodic pulses of compressed air clean one bag at a time, and released dust falls into the hopper and out through a rotary valve. Dust-laden air in Compressed-air header Clean-air plenum Hopper Dust discharge Clean air out Filter ΔP Normal

How the collector works

Watch dust build up on the bags and the pulse-jet clean one row at a time. Select any part to learn more.

  • Dust-laden air
  • Dust particles
  • Filtered air
Illustration shows a pulse-jet bag filter to explain the principle. Pressure readings are illustrative.

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