Pickling apparatus and pickling method
AssigneePosco
InventorHyoung-Kuk PARK
Life of this patent
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Abstract
A pickling apparatus includes a plurality of pickling tanks in which a scale of a steel plate is removed while the steel plate is advanced and sequentially dipped; an intermediate spraying unit, disposed between a pickling tank at the front end and a pickling tank at the rear end, for spraying a pickling solution onto the steel plate; and a pickling solution supply means configured to provide a pickling solution of a concentration used in the pickling tank at the rear end to the intermediate spraying unit, wherein a wringer roll disposed between the plurality of pickling tanks is removed.
Claims10
A pickling apparatus comprising:
- a plurality of pickling tanks in which scale of a steel plate is removed while the steel plate is advanced and sequentially dipped;
- an intermediate spraying unit disposed between a forward pickling tank and a rear pickling tank to spray a pickling solution to the steel plate;
- and
- a pickling solution providing unit providing a pickling solution having a concentration used in the rear pickling tank to the intermediate spraying unit,
- wherein a wringer roll disposed between the plurality of pickling tanks is eliminated.
A pickling method comprising:
- a scale removing operation in which a scale of a steel plate is removed while the steel plate is advanced and sequentially dipped in a plurality of pickling tanks;
- an intermediate spraying operation in which the pickling solution is sprayed to the steel plate by an intermediate spraying unit between a forward pickling tank and a rear pickling tank during the scale removing operation;
- and
- a pickling solution providing operation in which the pickling solution having a concentration used in the rear pickling tank is provided to the intermediate spraying unit, before the intermediate spraying operation,
- wherein a wringer roll disposed between the plurality of pickling tanks is eliminated.
Dependencies are inferred from the claim text.