vertical disc centrifuges are used for separation of 2 liquids while simultaneously
removing fine solids. Typical applications include oi/water separation
while simultaneously removing solid particles down to 1 micron
Working principle :::
feed is introduced to the rotating centrifuge bowl from the top via a
stationary inlet pipe (1), and is accelerated in a distributor (2) before
entering the disc stack (3). It is between the discs that the separation
of the two liquid phases and the solids takes place.
The oil phase moves towards the centre of the bowl and is discharged by
a paring disc (4). The water phase leaves the bowl over the top disc (5)
and through a paring disc (6). The heavier solids phase is collected at
the bowl periphery, from where it is discharged intermittently.
The solids discharge is achieved by a hydraulic system below the separation
space in the bowl, which at preset intervals forces the sliding bowl bottom
(7) to drop down, thus opening the solids ports (8) at the bowl periphery.
The bowl is mounted on a vertical spindle (9) driven by a vertically mounted
motor, via a belt drive.