Shower pipes for rotary drum filter

Liquid purification or separation – With means to add treating material – Directly applied to separator

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Details

210217, 210394, 210409, 210402, 239556, 138174, B01D 3338

Patent

active

045227160

ABSTRACT:
A shower pipe for a rotary drum filter has a square cross-sectional shape defined by top, bottom and side walls. The sidewalls and a pair of lengthwise-extending continuous diffusion flanges depending from the bottom wall of the pipe stiffen the pipe against sag for placement at a 12 o'clock position spanning the filter drum. The pipe is formed of fiberglass reinforced plastic in two longitudinally-divided hollow sections in a pair of mirror image, trough-like molds. Each section has a pair of interconnection flanges for mating the sections together. The interconnection flanges extend normally to the sidewalls to stiffen the pipe when the bottom wall of the pipe is vertically-oriented for placing the pipe at at 9 o'clock position along one side of the filter drum. Glass rods are secured in the interior corners of the pipe to provide diagonal rigidity, for placing the pipe at, e.g., a 10-11 o'clock position between the top and side of the filter drum. Before assembly of the sections, funnel-shaped discharge holes are formed in two staggered rows in the bottom wall of the lower section. The outer surface of the bottom wall is molded so that the diffusion flanges can be precisely aligned tangentially with the outlet side of the discharge holes.

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