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Hi-speed 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 size.
Working principle :::
The 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.
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