Centrifuge with wear resistant outlet openings
AssigneeKloeckner-Humboldt-Deutz AG
InventorBernd Schlieperskoetter
Life of this patent
Estimating the term…
Abstract
A method and apparatus for the separation of a slurry into a light fraction and a heavier fraction with a rotatable drum separator having a rotatable worm therein driven independently of the drum with an inlet for the slurry into the drum, an outlet for a liquid fraction, and outlet openings adjacent one end of the drum such as in the conical portion for the removal of the heavier abrasive sludge fraction with the openings extending at an angle opposite the direction of rotation of the drum and having wear-resistant inserts in the opening attached to webs beside the openings and removable by being pivoted out through the openings.
Claims16
A centrifugal separator of the type having a solid bowl with a rotatable worm therein comprising in combination:
- a centrifuge drum mounted for rotation about an axis in a first rotary direction to receive slurry to be separated into a liquid fraction and a thicker sludge fraction;
- and outlet openings leading from the drum each having an axis extending at a trailing direction relative to a diametrical line extending through the opening opposite said rotary direction of the drum for enhanced discharge of a heavier sludge fraction of the material being separated.
A centrifuge separator of the type having a solid bowl with a rotatable worm therein comprising in combination:
- a centrifuge drum having a conical end mounted for rotation about an axis:
- means for driving the drum in a first rotary direction;
- an auger therein driven at a rotational speed independent of the rotation of the drum;
- an inlet opening for slurry to be delivered into the drum;
- a first liquid fraction outlet leading from the drum;
- sludge fraction outlet openings arranged circumferentially adjacent an end wall of the drum in said conical section, said outlet openings having an axis extending at a direction opposite the rotary direction of the drum and at a trailing direction relative to a diametrical line passing through the axis of the drum and through the opening;
- and wear inserts in each of the openings removably secured to the drum for replacement.
The method of separating slurry into a solid fraction and a liquid fraction comprising the steps:
- passing the slurry into a centrifugal separator having an auger therein;
- delivering a slurry to be separated into a liquid fraction and a thicker sludge fraction into the centrifuge driving the centrifuge in a first rotary direction for a separation effect;
- and providing outlet openings adjacent one end in a circumferential wall of the separator having axes extending at an angle opposite the rotary direction for the drum relative to diametrical lines passing through the openings for discharge of the heavier sludge fraction of the material being separated.
Dependencies are inferred from the claim text.