Worm centrifuge

Details Worm centrifuge Worm centrifuge

1987-07-21

1989-05-02

Fisher, Richard V.

Liquid purification or separation

Processes

Separating

210374, 210383, 210394, 494 36, 494 54, B01D 3302, B04B 120, B04B 304

Patent

active

048266086

ABSTRACT:
In known worm centrifuges comprising a solid bowl and a sieve bowl, a cleaning and predewatering of the solids/liquid mixture occurs in the solid bowl when dewatering solids/liquid mixtures and an after-dewatering of the solids occurs in the following sieve bowl. In general, a relatively good cleaning and dewatering effect is achieved with such previously-known worm centrifuges comprising a solid bowl. According to the invention, the after-dewatering effect in the sieve bowl can be quite substantially increased in that the conveyor worm is provided with agitator elements in the region of the sieve bowl, the agitator elements immersing into the solids layer. As a result thereof, in particularly, a circulation of the solids layer is achieved in the sieve bowl in a very advantageous manner and, as a result thereof, the after-dewatering of the solids before discharge from the worm centrifuge is very substantially improved. '

REFERENCES:
patent: 1756194 (1930-04-01), Haug
patent: 3348767 (1967-10-01), Ferney
patent: 3401801 (1968-09-01), Wedemeyer et al.
patent: 4449967 (1984-05-01), Caldwell

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