Centrifuge preventing air admission during sludge discharge

Details Centrifuge preventing air admission during sludge discharge Centrifuge preventing air admission during sludge discharge

1974-08-05

1976-01-06

Krizmanich, George H.

Chemistry: physical processes

B04B 114

Patent

active

039306097

ABSTRACT:
The centrifuge comprises a centrifugal bowl having means for alternately opening and closing its outer periphery to discharge separated sludge intermittently from the separating chamber, there being a stationary paring disk in a paring chamber of the bowl for discharging separated liquid from the bowl while its outer periphery is closed to maintain a normal liquid level in the bowl. The paring chamber has an air passage located radially inward toward the bowl axis from this normal liquid level and adapted to discharge air from the bowl to atmosphere while the liquid is at said normal level, the liquid level moving radially outward in response to opening of the bowl's outer periphery. A dam rotating with the bowl limits this outward movement of the liquid level in the paring chamber so as to maintain therein a minimum liquid level during the sludge discharge, and means in the paring chamber are operable at this minimum liquid level to prevent air from being sucked into the bowl through the air passage during the sludge discharge.

REFERENCES:
patent: 3563453 (1971-02-01), Kompert et al.

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