B - Operations – Transporting – 04 – B
Patent
B - Operations, Transporting
04
B
233/8
B04B 7/00 (2006.01)
Patent
CA 1217749
ABSTRACT OF THE DISCLOSURE An improved screw decanter type centrifugal concentrating machine of the type including a bowl and a screw conveyor rotatably supported within the bowl in the coaxial relation is disclosed. The screw conveyor is rotated at a different rotational speed from that of the bowl and an arrangement is made such that liquid initially supplied prior to separating, concentrated liquid and residual liquid after completion of separation are continuously supplied and discharged through the hollow space in the hollow shafts of the bowl and the screw conveyor. To properly adjust discharge rate of concentrated liquid and residual liquid from the machine or concentration of solid material in both liquids, throttle valves are disposed at the position located midway of discharge passages extending from the hollow shafts. The throttle valves are preferably designed in the form of an automatically controlled valve. Suspension to be treated is introduced into the bowl by way of guide vanes on the side wall of the bowl. After completion of separation concentrated liquid is discharged through the tubular space in the hollow shaft by way of scooping tubes or grooves and residual liquid is discharged through the cylindrical space in the hollow shaft by way of passages in a guide plate at the side end part of the screw conveyor.
450856
Gowling Lafleur Henderson Llp
Kotobuki Engineering & Manufacturing Co. Ltd.
LandOfFree
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