Spiral steel silo (also known as spiral bite edge steel silo) is a large storage tank structure commonly used for storing materials such as grain, cement, fly ash, etc. Its structural characteristics have the following advantages and technical highlights:
Overall structural characteristics
Spiral bite edge connection
The spiral steel silo uses special equipment to continuously form the coiled plate through a spiral track, and the edge adopts a five-fold bite edge connection (five rib bite edge), which has high connection strength and good sealing.
This non-welding and bolt-free connection method effectively avoids the stress concentration and corrosion problems that may be caused by traditional welding.
Self-supporting structure
The spiral steel silo is a thin-walled self-supporting structure that does not require internal skeleton support. The structure is light but strong.
It can be built into a large silo as needed, with a diameter of more than 30 meters and a height of tens of meters.
Modular and fast construction
The construction equipment has a high degree of automation and can operate continuously on site, with fast construction speed and short cycle.
Generally, the construction cycle of a 1,000-ton silo is within 1 week.
Materials and Strength
High-strength galvanized steel plate
The silo material is generally Q235 or Q345 galvanized steel plate, which has strong corrosion resistance on the surface.
The plate thickness is adjusted according to the height of the structure. Thinner plates are used at the top and thicker plates at the bottom, aligning with the structural stress distribution.
Good overall sealing
The spiral bite edge structure itself provides excellent air tightness and water tightness. This makes it highly suitable for storing powdery, granular, and moisture-absorbing materials.
Advantages of use and maintenance
Long service life
Because the steel plate has been treated with anti-corrosion and the structure has no welds, the service life is usually more than 25 years.
Easy to maintain and clean
The interior is smooth and has no dead corners, which is convenient for material unloading and clearing, and the maintenance cost is low.
Can be equipped with an automated system
It can be combined with automatic feeding and unloading, ventilation, temperature control, dust removal, and pneumatic conveying systems. These integrations enable intelligent management of the entire operation.
