Depending on the specific safety requirements of the client and industry (cement, power plant, coal, grain), Yara offers solutions based on proprietary, proven reliable technology.
Yara delivers comprehensive service from the study of the risks to the installation of anti-explosion protection systems. With more than 500 references worldwide, Yara’s inerting expertise has the solution to meet your safety needs.
Yara designs, installs and services reliable emergency inerting systems using inert gases for fire and explosion prevention. Yara fire and explosion safety systems effectively deliver:
Commodity processing, handling and storage generates dusts, gases and vapours. Auto-ignition and smouldering resulting from these processes can quickly turn into a fire or explosion and put your personnel, production and assets at serious risk.
Prevention requires reducing the probability of risk by reducing or eliminating some of the risk factors. Using intelligent emergency inerting systems for explosion protection or fire protection, it is possible to reduce the risk of the occurrence of critical operational conditions.
Yara inerting systems use inert gases to prevent fires and explosions. Inert gases are very stable. Their introduction reduces the oxygen level to below the critical concentration level, making it impossible for a fire or explosion to occur. By preventing the formation of explosive atmospheres, Yara inerting systems keep your industrial installations safe.
For a fire to occur three elements of the fire triangle must be present: fuel (gas, dust ...), the oxidant (oxygen in air) and the activator (heat). For an explosion to occur other two elements must be present: containment (mill, filter, silo) and an ignitable dust cloud. The fuel and the activator cannot be removed from the equation, but the oxidant can. That is principle upon which Yara’s inert gas injection systems operate.
Inert gases have the property of being unresponsive and by replacing the oxidant they reduce oxygen levels to below critical concentration thresholds. The use of inert gases can prevent the ignition of dusts, gases or vapours and prevent oxidation and moisture absorption of certain sensitive products.
Inert gases listed below are used in Yara inerting processes:
Combustion gases and / or steam can be used in most applications, but are not available in the start-up and shutdown phases of industrial facilities. In practice, carbon dioxide (CO₂) and nitrogen are most often used. CO₂ is the most often recommended because it is easier to store.
Yara fire prevention and explosion prevention inerting technology is based on the precisely controlled injection of inert gases such as carbon dioxide (CO₂) and N₂.
For example, during the normal operation of a coal pulverizer, inerting is naturally provided by the combustion gases from the furnace. In the event of a technical problem or during start-up or shutdown, the coal mill will be free of inert gases. It is in these cases that Yara offers an additional source of reliable inert gas to secure your industrial installation and its employees.
All pressure equipment is designed to meet standards set out in European Pressure Equipment Directive PED 2014/68/EC and European Machine Guideline (2006/42/EC) and upon request certified to Technical Regulations of the Customs Union (TR ZU) and RTN requirements when and where applicable.
Dust explosion protection systems are designed according to European CEN TR 15281 Inerting guideline and Technical regulation for safety operation TRBS 2152-2.