Acid Fume Extraction System

Acid fume extraction systems are installed to take the toxic/acidic fumes away from the pickling tanks and prevent them from spreading inside the shop floor and cause pollution. Corrotech critically designs the suction duct at a predetermined minimum velocity rate that have to be applied to make sure effectiveness. The suction slot ducts are manufactured using chemical corrosion resistant Polypropylene or FRP using well equipped thermoplastic workshops fitted with the proper welding equipment. Corrotech critically designs the suction duct at a predetermined minimum velocity rates that have to be applied to ensure effectiveness. The suction slot ducts are manufactured using chemical corrosion resistant Polypropylene or FRP using well equipped thermoplastic workshops fitted with the appropriate welding equipment. Small sized tanks (< 600mm width): For open tanks with a width of less than 600 mm one single lip extraction plenum mounted on the side of the tank would suffice. Medium sized tanks (< 1500 mm width): Open tanks larger than 600 mm but smaller than 1500 mm in width would require two lateral lip extraction plenums on either side of the tank. Large sized tanks: As lip extraction from one side of the tank is only effective up to 500 – 750 mm from the plenum (depending on the velocities) the larger tanks are normally fitted with a combination of: i. two long horizontal lip extraction plenum on the long sides of the tank; ii. one horizontal extraction duct with multiple slots on the far side of the pickling tank joining the two horizontal ducts together. We refer this as a push-pull fume extraction system.Corrotech carefully establishes the individual extraction rates and total extraction volumes. The extraction rate per tank is a factor of open surface area and the chemical composition of the tank. Multiple pickling tanks are connected to a common header that transfers the fumes to a wet scrubber.