Application
Dust-free Loading in Grain and Feed Terminals
Answer in brief
At a grain terminal the loading point generates both the emission and the dust layer that makes the plant dangerous.
What escapes into the air settles on structures, and that layer is the fuel for a secondary explosion.
- Contain the column; the dust you capture is dust you do not sweep.
- Treat the loading filter as protected equipment.
- Keep the outlet close to the pile.
Reviewed October 21, 2026 · Updated October 21, 2026
The problem
Grain and meal carry dust that separates at every drop, and loading is the largest single release point on most terminals.
Desired outcome
A loading arrangement that contains the stream to the pile, captures the displaced air and keeps the surrounding structures free of settled dust.
Process approach
Cascade chutes handle very high ship loading rates by slowing the material, while telescopic spouts with extraction suit trucks and railcars.
The extraction filter handles combustible dust and is protected and isolated accordingly.
Housekeeping around the loading point is part of the system, because what escapes becomes the layer.
- Chute or spout matched to rate and vehicle.
- Filter protected and isolated as combustible dust equipment.
- Housekeeping regime around the loading point.
Selection factors
- Loading rate and the drop height available.
- Dust generation of the specific product.
- Explosion characteristics of the collected dust.
- Emission limits and neighbour sensitivity.
- Access for cleaning around the loading area.
Common failure modes
- Loading filter treated as ordinary extraction equipment
- Dust layer accumulating around the loading point
- Outlet left high above the pile as it fills
- Chute sized for average rather than peak rate
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