Silo & Hopper FAQs
1. What is a storage silo?
A silo is a storage vessel designed for powders, granules, and bulk solids.
2. What is the difference between a silo and hopper?
A silo is mainly for storage, while a hopper is generally used for controlled discharge.
3. What causes bridging in silos?
Poor flow properties, moisture, and improper hopper geometry.
4. What is rat-holing?
When material flows only through a central channel while the surrounding material remains stagnant.
5. How can bridging be prevented?
Using proper hopper design and flow promotion equipment.
6. What is mass flow?
When all stored material moves uniformly toward the outlet.
7. What is funnel flow?
When only material above the outlet moves during discharge.
8. What is hopper angle?
The cone angle required to ensure reliable material flow.
9. What is a bin activator?
A flow aid used to improve material discharge.
10. What is a bin aerator?
A device that uses compressed air to fluidize powder and improve flow.
11. How are silos sized?
Based on storage requirement, bulk density, and production consumption.
12. Can silos be installed outdoors?
Yes.
13. Are level indicators required?
Yes, for inventory control and process safety.
14. What materials are used for silos?
Mild steel, stainless steel, and coated steel.
15. How do I select a silo?
Based on material characteristics, storage volume, and discharge requirements.