INSTALLATION FOR THE TREATMENT, BY IMMERSION IN A LIQUID, OF PARTS OR OF MATERIALS, ESPECIALLY FOR THE HEAT TREATMENT OF PREFABRICATED CONCRETE ELEMENTS IN HOT WATER

摘要

The installation comprises an assembly of a float cylinder with a horizontal axis and immersed totally or partially in a tank containing the liquid. Fixing means on the cylinder fix the parts or materials on its outer surface. Automatic means introduce the parts or materials into the fixing means and extract them after treatment. The cylinder is rotated and in the course of rotation the parts or materials held by the fixing means are immersed in a liquid and subjected to the appropriate treatment. The float cylinder may be a casing rigidified by hoops and drums, rigidified in turn by gussets. Sliding gates, walls or rubber curtains may be included to divide the treatment tank into pre-heating, isothermal and cooling zones. When the fixing means include an open type recess an automatic blocking device formed by stakes, springs and levers may be provided to co-operate with cams mounted in openings in the fixed walls of the tank. When the fixing means comprise a closed type recess it is provided with annular supports and rollers mounted on the cylinder.