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Explosion-proof enclosure for world’s largest gas-to-urea plant

By Scott Jenkins |

Protective-enclosure maker Intertec Inc. (Sarnia, Ont.; www.intertec.info) is building a unique, explosion-proof, pressurized shelter for a granulated urea warehouse at what will be the world’s largest, single-stream, gas-to-urea plant in Nigeria. The three-section enclosure protects personnel and electronics from potentially explosive dust generated from the movement of bulk urea granules. The walls, ceilings and floors of the shelter’s three areas are made from Intertec’s proprietary glass-reinforced polyester (GRP) material. “The GRP enclosure material has anti-static properties to reduce the risk of sparking a dust explosion,” explains Martin Hess, Intertec CEO, “and is also fire-retardant, impact-resistant and has a chemical-resistant gel coat.” Intertec has developed a unique manufacturing process that allows construction of large (up to 12 m long) panels of GRP material that comply with user-defined dimensions and specifications. The mating panel edges use chemically bonded overlapping joints that provide excellent mechanical strength without the need for penetrative fittings, says the company. The enclosure in the Nigeria fertilizer plant was designed to be airtight, including an airlock…
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