Hycontrol has over 30 years experience in applying level measurement solutions over a diverse range of industries. We understand the consequences of inaccurate and unreliable level systems. Therefore each Hycontrol installation is tailored precisely to your application, to provide the best engineered solution… without compromise.
Click below to visit our dedicated silo protection website, siloprotection.com
To understand silo protection you must first understand what creates pressure in a silo. Pressure occurs where product is pneumatically transferred from a vessel (for example a road tanker, reclaim system or a bag house) into a silo. If the filtration system allows the pressurised air to escape quickly then there should be no problem. The root cause of silo over-pressurisation is air entering the silo exceeding the air escaping or venting from the silo.
Over-pressurisation can be caused by several factors, either individually or combined: filter-blinding caused by overfilling; failure of the level or pressure sensors; uncontrolled discharge from the tanker; inadequate maintenance of safety equipment; failure of the filtration system to vent air efficiently; faulty or damaged inlet control valves.
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:
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 hazards involving working at height. This also means it is unlikely sites will test their safety equipment before every fill.
Hycontrol’s Advanced Silo Protection System is not only the most advanced on the market, but it is also the only system that meets and even exceeds current safety guidelines. Since the system was introduced it has received widespread industry recognition and several awards. It has several key advantages over competing systems:
As with all safety and protection systems, regular servicing and maintenance is essential to ensuring continued optimum performance.