Bulk Storage Silos are designed to meet stringent safety requirements regarding structural integrity and stability.
Non-destructive tests are performed during the manufacturing process to ensure that this integrity is not compromised. It is also a legal requirement that every individual silo is supplied with a structural certificate and signed off by a professional Engineer.
Where necessary silos can be supplied with explosion vents, earthing straps and explosion prevention measures.
The Silo outlet can be fitted with flow assisting devices such as aeration pads or vibrating bin dischargers. Standard filter flanges are fitted to the roof of the silo to tie in with commercially available reverse jet filters.
Provision can also be made for mounting loadcells in the support structure as well as fitting of tanker loading pipes and roof access via an attached catladder. Intermediate platforms are supplied to ensure that maximum permissible catladder height is adhered to. For ease of access, stair towers can also be supplied with silos.
Silos up to approx. 5m in diameter and 20m in length can be transported in one piece while silos with larger diameters and length are generally delivered in sections and then site erected.
Lagging, trace heating and cooling facilities can be added to silos as optional extras. Materials of manufacture are mild steel and stainless steel. Support structures are designed to customer requirements.
Silo Design Code:
EN 1991-4 Eurocode 1 – Actions on structures Part 4: Silos and tanks
EN 1993-4-1 Eurocode 3 – Designs of steel structures – Part 4-1: Silos
SAICE – The Structural Design of Steel Bins Silos – 1st Edition
ECCS Technical Committee 8 – Buckling of steel Shells – Eurocode 3 Part 1-6
Support Steel Design Code:
Loading SABS 0160: 1989
SABS 0162:1993; SANS 10162 part 1
Standard total silo volumes include: 20, 25,40, 55, 60, 70, 85, 110, 130, 140, 150, 160, 170, 180, 190, 200 and 300m³ . Other sizes and configurations are supplied on request.
