Patent ID: 6340028
Filing Date: 2002-01-22
Classification: C23G

Abstract:
An acid pickling device for acid pickling a strip plate by causing the strip plate to travel in an acid pickling tank filled with an acid liquid, comprising:an immersion guide roll for guiding the strip plate while the strip plate travels in the acid pickling tank, said immersion guide roll being provided on the acid pickling tank lid; a skid for guiding the strip plate while the strip plate travels in the acid pickling tank, said skid being provided on a support block installed at a bottom of the acid pickling tank; and an acid pickling tank lid for covering a top of the acid pickling tank, a central part of the acid pickling tank lid being located at a lower position than a liquid level of the acid liquid in the acid pickling tank such that the lid covers a free surface of the acid liquid, wherein the support block is provided with a bottom plate positioned below the skid and extends along a direction of travel of the strip plate.