Liquid purification or separation – Gravitational separator – Mechanical constituent mover
Patent
1975-08-11
1977-01-25
Hart, Charles N.
Liquid purification or separation
Gravitational separator
Mechanical constituent mover
210527, 210531, B01D 2112
Patent
active
040050190
ABSTRACT:
The disclosure relates to clarifiers for use in the gravity separation of suspended particles from liquids. A clarifier according to the invention includes a tank having a sludge outlet through which settled sludge can be removed and means for conveying settled sludge towards said outlet. A gantry is supported for movement above the surface of liquid in the tank. Gantry drive means are provided and are adapted to cause the gantry to perform repeated passes over said surface. A sludge conveyor device is submerged in liquid in the tank in use and is positioned at a clearance above the bottom of the tank. Conveyor drive means are coupled to the sludge conveyor device. The device is coupled to the gantry by support means arranged so that the device moves with the gantry and sweeps over the bottom of the tank as the gantry performs said repeated passes above the surface of liquid. The conveyor device has at least one sludge contacting surface which, when the device is in operation, moves in a direction transverse to the direction of movement of the gantry so as to move sludge which has settled on the bottom of the tank in said transverse direction towards the outlet. Conveyor means according to the invention may also be used in other apparatus for use in the gravity separation of suspended material from a liquid.
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Hart Charles N.
L.S. Love & Associates Limited
Spitzer Robert H.
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