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INDUSTRIAL FILTRATION · 3D
PHOENIX PRIME
PHOENIX PRIME · INDUSTRIAL FILTRATION

Bag filter

The core unit of dry dust collection: dust settles on the outside of the bag, and a pulse of compressed air drops it into the hopper.

99.99%collection efficiency
≤ 10 mg/Nm³residual dust
1,000,000max airflow, m³/h
Scroll down to see how it works
01 / 06

Dust-laden air enters

Dust-laden air enters the filter chamber through the inlet duct. A deflector turns the flow downwards: coarse particles drop straight into the hopper, and the bags are shielded from abrasive impact.

02 / 06

Dust collects on the bag surface

Air passes through the bag fabric, while the dust stays on its outer surface. The fabric is selected for the temperature and the dust composition.

  • Polyester — up to 130 °C
  • Nomex® (aramid) — up to 200 °C
  • PTFE membrane — up to 260 °C
  • Service life when correctly selected — 24–48 months
03 / 06

Clean air leaves the filter

Cleaned air rises from inside the bags up into the clean-air plenum and leaves the system through the outlet duct.

  • Residual dust — ≤ 10 mg/Nm³
  • Collection efficiency — up to 99.99%
04 / 06

Cage and tube sheet

Every bag has a wire cage inside that holds it in shape. The bags are sealed tightly into the tube-sheet holes with a snap-band ring.

  • Cage 8–10 mm smaller than the bag — the bag “breathes”
  • Snap-band groove matched to the sheet thickness (3–5 mm)
  • A 3–4 mm error in diameter — the bag drops into the hopper
05 / 06

A pulse knocks the dust off

The controller opens the pulse valves one after another. Compressed air from the header shoots through the blowpipe into the bags — each bag “inflates” and sheds its dust cake.

  • Cleaning on differential pressure (ΔP) or on a timer
  • ΔP-controlled cleaning saves 15–20% of the energy
  • Operating pressure drop — 800–1,500 Pa
06 / 06

Dust is discharged from the hopper

The dislodged dust collects in the hoppers and is discharged airtight through a rotary valve — no outside air is drawn in and filter operation is not disturbed.

  • Hopper, screw and rotary valve — one assembly
  • A rotary valve is mandatory with explosive dust
ENGINEERING REQUEST

We match the filter to your process

Send a technical brief, a dust analysis or a photo of your existing unit — an engineer will work out the missing parameters.

Airflow
1,000 – 1,000,000 m³/h
Air-to-cloth ratio
0.8 – 1.5 m/min
Bag Ø × length
120 – 160 mm × 2 – 8 m
Temperature
−20 … +260 °C
Residual dust
≤ 10 mg/Nm³
Pressure drop
800 – 1,500 Pa
Download the catalogue