Patent ID: 6244446
Filing Date: 2001-06-12
Classification: B03B,B04B

Abstract:
An apparatus for separating more dense particles from less dense particles contained in a slurry, comprising:a) a rotary chamber with an inner wall separating outer and inner portions of the chamber, the inner wall including a screen;b) a first liquid supply means;c) a second liquid supply means;d) a drive arrangement for rotating the chamber relative to the first and second liquid supply means;e) a feed arrangement for supplying slurry to the inner portion of the chamber;f) a radial outlet in the outer portion of the chamber for dense particles passed by the screen;g) a further outlet defined by the chamber inwardly of the screen for the less dense particles and liquid in which they are suspended;h) an elutriation inlet to the outer portion of the chamber for receiving a continuous supply of liquid from the first liquid supply means and establishing an elutriation flow through the screen; andi) a pulse inlet to the outer portion of the chamber for receiving pulses of liquid from the second liquid supply means.