How a Powder Transfer System Works

A Powder Transfer System moves bulk powders (pharma, chemical, food, minerals, etc.) from one point to another in a closed pipeline using air or vacuum โ€” safely, cleanly, and efficiently.


๐Ÿงฉ Main Components

  1. Material Loading Point
    (Big bag station / Bag dumping station / Silo / Hopper / Reactor)

  2. Air or Vacuum Source

    • Blower / Compressor (for pressure conveying)

    • Vacuum Pump / Venturi (for vacuum conveying)

  3. Conveying Pipeline

  4. Material Receiver
    (Cyclone, Receiver hopper, Filter receiver, Bin)

  5. Filtration & Dust Collection

  6. Discharge Device
    (Rotary valve, Butterfly valve, Slide gate)

  7. Control Panel & Automation


๐Ÿ”„ Working Principle โ€“ Step by Step

Step 1: Material Feeding

Powder is fed from:

  • Bags, big bags, silos, reactors, or mixers
    into the feeding hopper / pick-up point.


Step 2: Creating Conveying Force

Depending on the system type:

System Type How Force is Created
Vacuum Conveying Vacuum pump creates negative pressure
Pressure Conveying Blower/compressor creates positive pressure
Dense Phase High pressure, low air velocity
Dilute Phase Low pressure, high air velocity

Step 3: Powder Movement in Pipeline

The created air flow carries powder through the pipeline.

  • Dilute Phase:
    Powder floats in fast air stream (suspended)

  • Dense Phase:
    Powder moves in slow, compact โ€œplugsโ€
    โ†’ Less degradation, less pipeline wear


Step 4: Material Separation

At destination:

  • Air + powder enter receiver

  • Filter separates air and powder

  • Clean air is exhausted

  • Powder drops into hopper / reactor / bin


Step 5: Discharge & Cycle Repeat

Powder discharges through:

  • Rotary valve / Butterfly valve
    into next process equipment.

The system repeats the cycle automatically via PLC.


๐Ÿงช Simple Example (Pharma Plant)

Bag โ†’ Vacuum Loader โ†’ Pipeline โ†’ Filter Receiver โ†’ Reactor

Operator opens bag โ†’ powder is sucked โ†’ travels in pipe โ†’ powder collected in reactor โ†’ clean air released โ†’ no dust, no spillage.


๐ŸŒŸ Key Benefits (Why Industries Use It)

  • Dust-free & hygienic

  • No manual lifting

  • No contamination

  • Closed & safe operation

  • High efficiency

  • GMP compliant

  • Low manpower


๐Ÿญ Where It Is Used

Pharmaceutical | Chemical | Food | Cement | Minerals | Plastics | Battery materials | FMCG

By RKP

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