Abrégé

An apparatus for a spiral separator, for provision operatively intermediate upstream and downstream spiral trough parts of the spiral separator, including a slurry receiving region for receiving a mineral slurry flow from said upstream spiral trough part of the spiral separator; a splitter for splitting the mineral slurry flow into a concentrate part, a semi-concentrate part and a remainder part; a mixing region for mixing a more fluid radially more outward part of the remainder part with a less fluid radially more inward part of the remainder part, to provide a mixed remainder part for feeding onto the downstream spiral trough part; and a semi-concentrate bypass channel for conveying the semi-concentrate part towards the downstream spiral trough part, such that the semi-concentrate component bypasses and is segregated from the mixing region.

Classes IPC  ?

• B03B 5/62 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide en utilisant des classificateurs hydrauliques, p. ex. des appareils de concentration à chute en spirale ou en hélice, du type à couloir ou à bassin

Abrégé

A spiral separator for separating more-desired material from less-desired material has a feed arrangement for feeding a slurry of mixed more-desired material and less-desired material, a spiral trough, and a splitting arrangement for off-take of a concentrate band of more desired material, and the spiral trough is configured to provide an effective cross-trough floor slope of less than 8 degrees to horizontal in a turn immediately upstream of the splitting arrangement. The separator may be a multi-stage separator and include a slurry preparation apparatus between each pair of stages.

Classes IPC  ?

• B03B 5/62 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide en utilisant des classificateurs hydrauliques, p. ex. des appareils de concentration à chute en spirale ou en hélice, du type à couloir ou à bassin

Abrégé

An apparatus for a spiral separator, for provision operatively intermediate upstream and downstream spiral trough parts of said spiral separator, comprises: a slurry receiving region (302) for receiving a mineral slurry flow from said upstream spiral trough part of said spiral separator; a splitting arrangement (304, 308) for splitting the mineral slurry flow into a concentrate part (212), a semi-concentrate part (214) and a remainder part; a mixing arrangement (312) for mixing a more fluid radially more outward part of the remainder part with a less fluid radially more inward part of the remainder part, to provide a mixed remainder part (316) for feeding onto the downstream spiral trough part; and a semi-concentrate bypass channel (310) for conveying the semi-concentrate part towards the downstream spiral trough part, such that the semi-concentrate component (214) bypasses and is segregated from the mixing arrangement.

Classes IPC  ?

• B03B 5/62 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide en utilisant des classificateurs hydrauliques, p. ex. des appareils de concentration à chute en spirale ou en hélice, du type à couloir ou à bassin
• B03B 11/00 - Dispositifs d'alimentation ou d'évacuation intégrés dans un matériel de lavage ou de séparation par voie humide
• B03B 5/52 - Classificateurs du type à vis

Abrégé

A method of manufacturing a spiral trough element for a spiral separator, includes providing a casting mould structure (302) comprising a generally spiral casting mould surface (306); providing a generally spiral structural component (210) for a spiral trough for a spiral separator; connecting the generally spiral structural component to the casting mould structure to provide a substantially spiral cavity therebetween; applying liquid polymer into the substantially spiral cavity; and allowing the liquid polymer to solidify to thereby form a wear surface part for a spiral trough.

Classes IPC  ?

• B29C 39/10 - Moulage par coulée, c.-à-d. en introduisant la matière à mouler dans un moule ou entre des surfaces enveloppantes sans pression significative de moulageAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en incorporant des parties ou des couches préformées, p. ex. coulée autour d'inserts ou sur des objets à recouvrir
• B29C 39/22 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
• B03B 5/62 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide en utilisant des classificateurs hydrauliques, p. ex. des appareils de concentration à chute en spirale ou en hélice, du type à couloir ou à bassin

Abrégé

A spiral separator for separating more-desired material from less-desired material has a feed arrangement (32) for feeding a slurry of mixed more-desired material and less-desired material, a spiral trough (100), and a splitting arrangement (34) for off-take of a concentrate band of more desired material, and the spiral trough is configured to provide an effective cross-trough floor slope of less than 8 degrees to horizontal in a turn (160) immediately upstream of the splitting arrangement. The separator may be a multi-stage separator and include a slurry preparation apparatus (800) between each pair of stages.

Classes IPC  ?

• B03B 5/62 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide en utilisant des classificateurs hydrauliques, p. ex. des appareils de concentration à chute en spirale ou en hélice, du type à couloir ou à bassin

Abrégé

An apparatus for a spiral separator, for provision operatively intermediate upstream and downstream spiral trough parts of said spiral separator, comprises: a slurry receiving region (302) for receiving a mineral slurry flow from said upstream spiral trough part of said spiral separator; a splitting arrangement (304, 308) for splitting the mineral slurry flow into a concentrate part (212), a semi-concentrate part (214) and a remainder part; a mixing arrangement (312) for mixing a more fluid radially more outward part of the remainder part with a less fluid radially more inward part of the remainder part, to provide a mixed remainder part (316) for feeding onto the downstream spiral trough part; and a semi-concentrate bypass channel (310) for conveying the semi-concentrate part towards the downstream spiral trough part, such that the semi-concentrate component (214) bypasses and is segregated from the mixing arrangement.

Classes IPC  ?

• B03B 5/52 - Classificateurs du type à vis
• B03B 5/62 - Lavage de matériaux en grains, en poudre ou en grumeauxSéparation par voie humide en utilisant des classificateurs hydrauliques, p. ex. des appareils de concentration à chute en spirale ou en hélice, du type à couloir ou à bassin