Strip metal treating system
AssigneeContinental Installers Corporation
InventorsCarl G. Seiz, Clyde G. Robinson
Life of this patent
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Abstract
A process and apparatus for removing oxides, millscale and other impurities from continuous metal strip longitudinally fed at regulated speeds from a coil at one end through a series of horizontally aligned treatment stages, including three shallow pickling tanks, to a recoiler at the other end. The pickling tanks are constructed of granite slabs formed into a V-shaped cross section near the ingress and a flat ramp near the egress. Variable speed pinch rolls at the ends of each tank regulate the immersion of the strip in the tanks.
Claims26
Apparatus for continuous metal strip pickling comprising, in combination:
- a plurality of shallow pickling tanks arranged end to end for successively immersing the strip therethrough;
- nozzle means disposed near the inlet of each of said tanks for expelling a continuous quantity of pickling solution onto the strip;
- a weir disposed at the exit of each of said pickling tanks for maintaining a shallow bath of the solution;
- a head tank operatively connected at the discharge of each weir for receiving the solution flowing thereover;
- and
- a pump connected to each of said head tanks for recirculating a portion of the solution collected therein to respective ones of said nozzle means.
Dependencies are inferred from the claim text.