Method in a treatment process of a paper web and treatment device for a paper web
AssigneeMepso Paper, Inc.
InventorsSeppo Luomi, Petteri Lannes
Life of this patent
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Abstract
In the treatment process of a paper web, the paper web travels via a surface journalled rotatable, such as a peripheral surface of a cylinder or a roll, and the treatment process is controlled with an adjustment and control unit. The bearing arrangement used for the moving surface is a bearing whose operation is maintained by supplying control energy therein, wherein the information obtained from the control energy of the bearing is used in the adjustment and control unit to control the process. The bearing which is used can be a magnetic bearing and the process which is controlled can be reeling or winding or calendaring.
Claims26
Method in a treatment process of a paper web wherein in the treatment process the paper web (W) travels over a moving surface journalled rotatable by means of a bearing arrangement and the treatment process is controlled with an adjustment and control unit (9),
- wherein the bearing arrangement used for the moving surface is a bearing (6) whose operation is maintained by supplying control energy therein, information is obtained from the control energy supplied, and the information obtained from the control energy of the bearing is used in the adjustment and control unit (9) to control the treatment process.
Treatment device for a paper web, which comprises a moving surface journalled rotatable by means of a bearing arrangement, the surface being arranged to guide a paper web (W) or to be in contact with the paper web, as well as an adjustment and control unit (9) for controlling the treatment device,
- wherein the moving surface is journalled rotatable with a bearing (6) which requires control energy to be supplied therein to maintain its operation and is connected to a supply of control energy,
- wherein the supply of control energy to the bearing is in a data transmission connection with the adjustment and control unit (9), and the adjustment and control unit (9) comprises means for controlling the treatment process on the basis of information received from the supply control energy.
Dependencies are inferred from the claim text.