Paper-making machine including a deaerator for a fiber suspensio

Details Paper-making machine including a deaerator for a fiber suspensio Paper-making machine including a deaerator for a fiber suspensio

1997-04-23

1999-02-09

Hastings, Karen M.

Paper making and fiber liberation

Apparatus

Slurry supply conditioning or condition maintaining

96204, 162336, 162381, D21F 102, B01D 1900

Patent

active

058689052

ABSTRACT:
The invention is directed to a paper-making machine for making a paper web from a fiber suspension. The paper-making machine includes a headbox having an entrance, a fluid conduit connected to the headbox entrance, and a deaeration device with an exit connected to the fluid conduit. The deaeration device includes a housing and a pipe. The housing including an inner surface defining an inner chamber. The pipe is disposed at least partially within the housing and is configured to receive the fiber suspension. The pipe has a plurality of outlets disposed within the inner chamber of the housing. Each of the outlets is configured to output a stream of the fiber suspension against and at an acute angle relative to the inner surface of the inner chamber. A vacuum source is connected to the housing and is in fluid communication with the inner chamber.

REFERENCES:
patent: Re29472 (1977-11-01), Kaiser
patent: 2931503 (1960-04-01), Clark
patent: 3206917 (1965-09-01), Kaiser et al.
patent: 4238208 (1980-12-01), Frykhult et al.
MacDonald et al. "Paper making and Paper Board Making" McGraw Hill Book Company pp. 227-230 1970.

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