| 摘要 |
<p>For removing carrier liquid from solids particles separated from a liquid slurry in a decanter-type centrifuge, a further liquid is introduced into the bowl which is both immiscible with and of higher specific gravity than the carrier liquid to establish at the periphery of the bowl a body (42) of this further liquid defining a transfer zone (46) disposed radially outwardly of the body (48) of carrier liquid, the centrifugally separated solids moving the zone (46) where carrier liquid adhering to the solids particles is displaced by the further liquid of higher specific gravity, the solids particles being scrolled through the transfer zone to the solids outlet of the bowl. For isolating the body of carrier liquid (48) from the frusto-conical portion (18) of the bowl, an annular disc (54) is mounted on the conveyor (20) with its outside periphery extending into the body of liquid (42) so that when the solids are scrolled from the transfer zone along the frusto-conical portion (18) to the solids discharge outlet, they are not recontaminated by carrier liquid. <IMAGE></p> |
