Method and Apparatus for Heating a Roller
AssigneeVoith Patent GmbH
InventorFabian Doling
Life of this patent
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Abstract
A method and an apparatus for heating a roller used in the production and/or finishing of a web of material, particularly a paper web or paperboard web, are provided. According to the method, a roller is heated from the outside by a heated gas. The apparatus is configured to heat a roller used in the production and/or finishing of a web of material according to the method.
Claims47
A method for heating a roller used in at least one of a production and finishing of a web of material, comprising heating the roller from the outside by a heated gas.
A method for heating a roller, the method comprising:
- heating a first gas in a first axial zone;
- directing the first gas toward the roller to achieve a first surface temperature;
- heating a second gas in a second axial zone;
- and
- directing the second gas toward the roller to achieve a second surface temperature,
- wherein the first axial zone and the second axial zone are located exterior to the roller and along distinct axial locations adjacent the roller.
An apparatus for heating a roller, the apparatus comprising:
- a first axial zone for heating a first gas;
- a first exit zone defining a portion of the first axial zone;
- a second axial zone for heating a second gas;
- and
- a second exit zone defining a portion of the second axial zone,
- wherein the first and second exit zones are located exterior to the roller and define distinct axial locations along the roller.
Dependencies are inferred from the claim text.