Fume Extraction

A method of removing fumes that is especially necessary in the pick­ling shop to give proper working conditions and to prevent structural corrosion. Systems can be: lip-type, where fumes are extracted by trunking, which rests on the sides or lip of the bath or baths and does not interfere with the entry or removal of the work from the bath; by fans placed above and to one side of the tank to form an invisible barrier of clean air; and by completely enclosing the cleaning line in what is vir­tually a building within the main building.