Method and apparatus for cooling and drying a hot-rolled strip or a metal sheet in a rolling mill
AssigneeSMS group GmbH
InventorsJürgen Seidel, Peter Sudau, Joachim Ohlert, Ralf Wachsmann, Uwe Baumgärtel
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Abstract
A method for drying a strip (3) or sheet metal that runs through a rolling mill is characterized in that the strip (3) or the sheet metal is cooled to a lower temperature in a cooling section by means of a coolant, in particular a cooling liquid, down-stream of a hot strip mill (1) or, in case of sheet metal, after passing through at least one roll stand (2), and in that the coolant, in particular the cooling liquid, and subsequently the moisture remaining on the strip (3) or the sheet metal is removed from the strip (3) or sheet metal by means of a drying apparatus (10).
Claims46
A method for drying a continuously traveling metal strip or metal sheet in a rolling mill, comprising the steps of:
- cooling the metal strip directly following a hot strip train or the metal sheet after traveling through at least one roll stand in a cooling section by a cooling agent to a low temperature;
- removing the cooling agent and subsequently moisture remaining on the metal strip or the metal sheet from the metal strip or on the metal sheet by a drying device directly following the cooling section;
- and
- ensuring that the cooling agent and the moisture have been removed from the metal strip or the metal sheet by monitoring the moisture on the metal strip or the metal sheet or in the area of the metal strip or of the metal sheet by moisture sensors outside the drying device in an outlet region of the hot strip train where the metal strip leaves the strip train.
A rolling mill for rolling a metal strip or metal sheet in a hot strip train, the rolling mill comprising:
- a hot strip train;
- a cooling section directly following the hot strip train;
- a drying device directly following the cooling section, the drying device including at least one device for removing cooling liquid, and at least one device for removing residual moisture remaining on the metal strip or the metal sheet;
- and
- moisture sensors arranged outside the drying device in an outlet region of the hot strip train where the metal strip leaves the strip train for monitoring the metal strip or the metal sheet to ensure the cooling liquid and the residual moisture are removed.
Dependencies are inferred from the claim text.