Compact breathing stack for a storage tank - for removing noxious gases from escaping air during filling and drying of inflowing air during emptying

摘要

A storage tank breathing arrangement incorporates a scrubber, partic. for removing noxious gases from the escaping air while the tank is filling and then for drying the inflowing air while the tank is emptying. The scrubber section is sprayed with water to wash-out the noxious gases counter-currently during the exhausting of gases, the packing comprises lengths of PVC tube which fluidise during this operation as a result of their low weight and the press. of gas escaping from the storage tank.