Device for decelerating fast-flow currents of white water

Details Device for decelerating fast-flow currents of white water Device for decelerating fast-flow currents of white water

1986-07-23

1987-12-22

Schor, Kenneth M.

Paper making and fiber liberation

Apparatus

White water or broke recovery, recirculation or treatment

138 26, 138 37, 138 39, 162190, 162DIG7, D21F 168

Patent

active

047145226

ABSTRACT:
White water at a high speed of current occurs in the region of a forming roll in a paper machine running at a high speed. The white water is caught in a white water trough which is provided with deflection vanes and is carried substantially at the initial speed by means of a duct (1) out of the ground plan of the paper machine to a stilling tower (2) standing adjacent to the paper machine, to feed the inner wall of a screen wall (3) of a screen cage, which wall is arranged in the stilling tower. The wall (3) is curved and has openings (4) for the white water to pass through. They are designed to peel off in layers the film of white water which is sent along the wall (3) and to deflect the jets of white water passing through the openings (4) radially outwards to the wall (3) against an outer wall (5) of the stilling tower (2), where the actual deceleration of the current takes place in several individual jets.

REFERENCES:
patent: 3692183 (1972-09-01), Tra
patent: 3960653 (1976-06-01), Futcher et al.
patent: 4028174 (1977-06-01), Myren
patent: 4116259 (1978-09-01), Koskimies et al.
patent: 4213823 (1980-07-01), Wittig et al.

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