Drying hood, drying arrangement and use thereof
AssigneeVoith Patent GmbH
InventorAndreas Boegershausen
Life of this patent
Estimating the term…
Abstract
A drying hood for drying a fibrous web, such as a tissue paper web, includes a plurality of nozzle boxes for supplying or discharging air and a housing that at least partially surrounds the nozzle boxes. The nozzle boxes are each individually mounted on the housing by a first bearing and a second bearing. The two bearings allow at least one movement of the nozzle box relative to the housing along a longitudinal axis of the nozzle box and/or at least one movement in a direction transverse thereto, along a transverse axis of the nozzle box. The two bearings have translational degrees of freedom differing by one. A drying arrangement having a drying cylinder and the drying hood is also provided.
Claims18
A drying hood for drying a fibrous web or a tissue paper web, the drying hood comprising:
- a plurality of nozzle boxes for supplying or discharging air, each of said nozzle boxes having a longitudinal axis and a transverse axis being transverse to said longitudinal axis;
- a housing at least partially surrounding said nozzle boxes;
- first and second bearings, a respective one of said first bearings and a respective one of said second bearings individually mounting each of said nozzle boxes on said housing;
- said first and second bearings allowing at least one movement of said nozzle boxes relative to said housing along at least one of said longitudinal axis or said transverse axis;
- and
- said first and second bearings having translational degrees of freedom differing from one another by one degree of freedom;
- and
- said first and second bearings being linear bearings or pure linear bearings.
A drying hood for drying a fibrous web or a tissue paper web, the drying hood comprising:
- a plurality of nozzle boxes for supplying or discharging air, each of said nozzle boxes having a longitudinal axis and a transverse axis being transverse to said longitudinal axis;
- a housing at least partially surrounding said nozzle boxes;
- first and second bearings, a respective one of said first bearings and a respective one of said second bearings individually mounting each of said nozzle boxes on said housing;
- said first and second bearings allowing at least one movement of said nozzle boxes relative to said housing along at least one of said longitudinal axis or said transverse axis;
- said first and second bearings having translational degrees of freedom differing from one another by one degree of freedom;
- and
- said first and second bearings each configured as a respective guide rail including a groove and a bolt engaging in said groove, said grooves associated with said housing and said bolts each associated with a respective nozzle box or bounded or formed by said respective nozzle box.
A drying hood for drying a fibrous web or a tissue paper web, the drying hood comprising:
- a plurality of nozzle boxes for supplying or discharging air, each of said nozzle boxes having a longitudinal axis and a transverse axis being transverse to said longitudinal axis;
- a housing at least partially surrounding said nozzle boxes;
- first and second bearings, a respective one of said first bearings and a respective one of said second bearings individually mounting each of said nozzle boxes on said housing;
- said first and second bearings allowing at least one movement of said nozzle boxes relative to said housing along at least one of said longitudinal axis or said transverse axis;
- said first and second bearings having translational degrees of freedom differing from one another by one degree of freedom;
- and
- at least one linear stop being associated with or formed by said first bearing and forming a defined gap between end faces of said housing and said nozzle box facing each other.
A drying hood for drying a fibrous web or a tissue paper web, the drying hood comprising:
- a plurality of nozzle boxes for supplying or discharging air, each of said nozzle boxes having a longitudinal axis and a transverse axis being transverse to said longitudinal axis;
- a housing at least partially surrounding said nozzle boxes;
- first and second bearings, a respective one of said first bearings and a respective one of said second bearings individually mounting each of said nozzle boxes on said housing;
- said first and second bearings allowing at least one movement of said nozzle boxes relative to said housing along at least one of said longitudinal axis or said transverse axis;
- said first and second bearings having translational degrees of freedom differing from one another by one degree of freedom;
- and
- said first and second bearings being sliding bearings.
Dependencies are inferred from the claim text.