Liquid purification or separation – Gravitational separator – Mechanical constituent mover
Patent
1990-03-05
1991-09-10
Hart, Charles
Liquid purification or separation
Gravitational separator
Mechanical constituent mover
210527, B01D 17025
Patent
active
050471503
ABSTRACT:
There is disclosed a solids collection and removal system for a settling tank. It is particularly designed for installation in generally rectangular, in-ground settling tanks such as is commonly used for water treatment. The collection device includes a plurality of bottom-travelling collectors which have elongated, open-bottomed channel housings, each with a scraper blade pivotally supported by a pin-in-slot attachment to provide a modified pendulum suspension. The collectors, which span the width of the tank, are mounted on a track or other suitable mechanical linkage for oscillatory travel across preselected portions of the bottom of the settling tank. Each collector is divided by a longitudinal baffle into a lowermost collection chamber and an upper evacuation chamber. The latter is connected through a conduit to a vacuum system for the evacuation of the solids from the collectors.
REFERENCES:
patent: 3627668 (1971-12-01), Wethly
patent: 3935104 (1976-01-01), Russell et al.
patent: 3969249 (1976-07-01), Dodd
patent: 4094338 (1978-06-01), Bauer
patent: 4401576 (1983-08-01), Meurer
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