Method of and device for thermal treatment of a continuous product web by blowing of steam
AssigneeBabcock Textilmaschinen GmbH
InventorMarc-Aurel Voth
Life of this patent
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Abstract
In a method and a device for thermal treatment of a continuous product web by blowing of steam, a product web is transported through an inlet slot, an interior of the housing and an outlet slot and steam is blown onto the product web through nozzle openings of nozzle boxes, steam is blown onto the product web before the inlet slot of the housing in a sluice.
Claims16
A method of thermal treatment of a continuous web, comprising the steps of blowing steam onto the product web in a device with a steam-tight housing;
- transporting the product web through an inlet slot in the housing, then through the housing, and through an outlet slot of the housing;
- guiding the stream in at least one steam field in a recirculating air process;
- blowing the steam through nozzle openings of nozzle boxes;
- maintaining an over pressure in the housing;
- blowing steam onto the product web in a sluice before the inlet slot of the housing;
- and aspirating gas in the sluice before the inlet slot of the housing in a step selected from the group consisting of prior to blowing of steam and after blowing of steam.
A device for thermal treatment of a continuous product web by blowing of steam, comprising a steam-tight housing with an inlet slot and an outlet slot;
- transporting means for transporting the product web through said inlet slot, an interior of said housing, and said outlet slot;
- at least one steam field;
- means for guiding steam in recirculating process;
- nozzle boxes with nozzle openings oriented toward a product path;
- and a sluice located before said inlet slot and having at least one steam chamber with nozzle boxes, to which a steam supply conduit is connected, said sluice having at least one suction chamber arranged at a location selected from the group consisting of after said steam chamber and before said steam chamber.
Dependencies are inferred from the claim text.