Shower pipes for rotary drum filter

Details Shower pipes for rotary drum filter Shower pipes for rotary drum filter

1985-07-18

1987-10-06

Fisher, Richard V.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Special forms and forming

210217, 210402, 210409, 239523, 239556, 138172, D06B 102

Patent

active

046972927

ABSTRACT:
A shower pipe for a rotary drum filter includes a fiberglass pipe body of rectangular cross section with two rows of spray holes and with the holes of one row being staggered with respect to the holes of the other row. The upper row includes a separate diffusion flange for each hole. The lower row includes a continuous diffusion flange which is reinforced and rigid to resist deflection and serve as a striker to limit the thickness of pulp stock passing upwardly by the flange. The lower flange includes a flexible flange extension which extends to the pulp mat on the drum to limit heat loss from the spray of washer fluid. Different diffusion flanges on the same pipe define different spray trajectories to prevent overconcentration of spray impinging the mat.

REFERENCES:
patent: 2826248 (1958-03-01), Angel
patent: 3080124 (1963-03-01), Rathmann
patent: 3099696 (1963-07-01), Meek
patent: 3150082 (1964-09-01), Rich
patent: 3363774 (1968-01-01), Luthi
patent: 4217935 (1980-08-01), Grendelman et al.
patent: 4248716 (1981-02-01), LaValley
patent: 4276169 (1981-06-01), Browne et al.
patent: 4522716 (1985-06-01), LaValley

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