As the majority of silos are not pressure rated vessels they can rupture at pressures as low as 1 or 2 psi. Without adequate safety systems in place sites risk fatal injury to staff, damage to equipment, product loss and environmental pollution - not to mention hefty Health & Safety fines. Therefore silo protection is essential for avoiding the risks of over-pressurisation and overfilling. Guidelines from the Mineral Product Association (MPA), the HSE and DEFRA all make clear the importance of a reliable, testable safety system that is kept in optimum condition through regular servicing.
However, even with a protection system in place there is still risk: testing safety equipment at the top of a silo brings additional hazaards involving working at height. This also means it is unlikely sites will test their safety equipment before every fill.
HYCONTROL'S ADVANCED SHIELD Lite silo protection system is not only the most advanced on the market, but it is also the only system that needs and even exceeds current safety guidelines. The key components of a typical SHIELD Lits SPS installation are shown above.