Centrifuge with cake churning
First Claim
1. A centrifuge comprising:
- a bowl having an inner surface and a cake discharge opening;
a conveyor for moving cake along a cake flow path extending along said inner surface towards said cake discharge opening; and
a baffle mounted to said conveyor upstream of said discharge opening and disposed along said cake flow path, said baffle having a concave surface or profile on an upstream side, said concave surface or profile facing substantially away from said discharge opening.
1 Assignment
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Accused Products
Abstract
A centrifuge includes a conveyor for moving cake along a cake flow path towards a cake discharge opening and further includes a baffle mounted to the conveyor and disposed along the cake flow path. The baffle is provided on an upstream side, facing substantially away from the discharge opening, with a concave profile or surface. This concave profile or surface serves to direct a portion of the cake, which is headed downstream along the cake flow path, into a recirculation or churning path directed partly back towards a pool. The recirculation or churning of the particulate material facilitates an enhanced washing thereof and improves the removal of valuable solutes or undesirable impurities from the cake.
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Citations
21 Claims
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1. A centrifuge comprising:
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a bowl having an inner surface and a cake discharge opening; a conveyor for moving cake along a cake flow path extending along said inner surface towards said cake discharge opening; and a baffle mounted to said conveyor upstream of said discharge opening and disposed along said cake flow path, said baffle having a concave surface or profile on an upstream side, said concave surface or profile facing substantially away from said discharge opening. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A centrifuge comprising:
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a bowl having a compound beach with a first beach section and a section beach scction of different slope than said first beach section; a conveyor for moving cake along a cake flow path towards a cake discharge opening in said bowl, said cake having a relatively dry portion and a relatively wet portion, said relative dry portion being located closer than said relatively wet portion to said bowl, said conveyor including a hub, said conveyor further including a gate extending radially outwardly from said hub for cooperating with said compound beach to increase cake retention time and for permitting only said relatively dry portion of said cake to pass to said discharge opening; and spray nozzles attached to said hub for spraying a wash liquid onto a surface of a cake layer disposed on said second beach section. - View Dependent Claims (21)
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Specification