Industrial dust collectors
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.
Dust stays in. Clean air goes out.
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.
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
Operating principle
Dust-laden air enters
Extraction ductwork brings contaminated air into the dirty-air chamber. Heavier particles drop out directly into the hopper.
Filters capture particles
Air passes from the outside of each filter bag to the inside. Dust is held on the filter surface and builds into a cake.
Clean air leaves
Filtered air rises through the bags into the clean-air plenum and is drawn out by the system fan.
Pulse-jet cleaning
As resistance rises, a diaphragm valve fires a short pulse of compressed air down one row of bags, flexing them and releasing the dust cake.
Dust is discharged
Released dust falls into the hopper and leaves through a rotary airlock valve into a bin or conveyor.
Specifications
Reference data and the parameters we size for each project.
| Parameter | Installed unit | Project-specific units |
|---|---|---|
| Collector type | Pulse-jet bag filter | Bag or cartridge, per dust |
| Application | Pharmaceutical manufacturing | Pharmaceutical and general industry |
| Design airflow | – | Sized to the extraction points |
| Filter media and element type | – | Selected for dust and temperature |
| Air-to-cloth ratio | – | Selected for dust loading |
| Cleaning system | Compressed-air pulse jet | Pulse jet, timer or ΔP controlled |
| Dust discharge | – | Rotary valve, screw or drum |
| Construction material | – | Mild or stainless steel |
| Status | Installed and in service, pharmaceutical industry | On request |
Know the dust
Particle size, loading, moisture, temperature and combustibility drive media choice, air-to-cloth ratio and safety provisions.
Capture at source
Hood and duct design decide how much dust actually reaches the collector. We engineer the extraction points, not just the box.
Stable resistance
Pulse cleaning keeps filter pressure drop within a working band, so the fan keeps delivering the design airflow.
Applications
- Pharmaceutical granulation, milling, blending and tablet compression
- Powder handling, bagging and transfer points
- Grinding, cutting and finishing operations
- Food ingredient and chemical powder processing
Configuration options
- Bag or cartridge filter elements selected for the dust
- Timer or differential-pressure controlled pulse cleaning
- Rotary airlock, screw conveyor or drum discharge
- Stainless steel construction for hygienic applications
- Containment features for potent or hazardous dusts, subject to project specification and verification
- Explosion protection for combustible dusts, subject to dust testing and applicable standards
Photographs
Technical documents
Drawings and datasheets are issued against your enquiry so they reflect your duty.
Specify your dust collectors.
Send us the duty, site conditions and any drawings. We will review the application and respond with a technical proposal.
