Filter filled with loose bulk material

Liquid purification or separation – Plural chambers with movement of granules therebetween

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Details

210256, 210265, 210268, 210274, B01D 2446

Patent

active

060774266

ABSTRACT:
A filter with a horizontally fed filter chamber having loose bulk material as the filter medium has a wall on the upstream side and downstream side to hold back the loose bulk material in the filter chamber. The filter chamber includes a compressed air-lift pump disposed inside of the filter chamber for pumping the loose bulk material from a bottom area of the filter chamber, through a bottom lifter connected with a stand pipe to an upper rinse chamber, and a hopper disposed at a bottom of the filter chamber having entrance slots and surrounded by a chamber that is provided with a rinse water inlet tube connected to a raw water chamber.

REFERENCES:
patent: 3667604 (1972-06-01), Lagoutte
patent: 3716969 (1973-02-01), Maeda
patent: 3798159 (1974-03-01), Kisbocskoi et al.
patent: 3987148 (1976-10-01), Squires
patent: 4060484 (1977-11-01), Austin et al.
patent: 4197201 (1980-04-01), Hjelmner et al.
patent: 4399034 (1983-08-01), Moller
patent: 4861472 (1989-08-01), Weis

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