Center column drive arrangement for circular clarifiers
AssigneeEnvironmental Elements Corp.
InventorsStephen G. Pearre, Bobby L. Craighead
Life of this patent
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Abstract
A fixed center column supports axially a torque cage mounted to a first bearing on the column, and a second bearing is disposed between the torque cage and a supporting walkway or superstructure. A powered drive unit is mounted to the walkway and has a drive shaft that is connected to the torque cage for rotation thereof about the axis of the center column.
Claims4
An improved circular clarifier apparatus of the type including a tank having a fixed center column and having connected to the center column a torque cage rotatable about the center column and a superstructure, wherein the improvement comprises:
- a. a first bearing axially mounted to the top of the center column;
- b. the torque cage mounted to the top of the first bearing and rotatable about the axis of the center column;
- c. a second bearing axially mounted to the top of the torque cage and connected to the bottom of the superstructure;
- d. drive means for rotating the torque cage, the drive means having a vertical drive shaft extending through the center of the second bearing and keyed to the torque cage.
An improved circular clarifier apparatus of the type including a tank having a fixed center column and having connected to the center column a torque cage rotatable about the center column and a superstructure, wherein the improvementcomprises:
- a. a circular bearing axially mounted to a plate affixed to the top of the center column;
- b. the torque cage having a circular plate mounted to the top of the first bearing, the torque cage being rotatable about the axis of the center column;
- c. a second circular bearing axially mounted to the top of the circular torque cage plate and connected to the bottom of the superstructure;
- d. drive means for rotating the torque cage, the drive means having a vertical drive shaft extending through the center of the second bearing and keyed to a collar attached to the torque cage plate.
Dependencies are inferred from the claim text.