Through-flow hydrocyclone and three-way cleaner

B - Operations – Transporting – 04 – C

Patent

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Details

B04C 3/06 (2006.01) B04C 3/00 (2006.01) D21D 5/24 (2006.01)

Patent

CA 2332036

The conventional infeed head (22) and inverted cone (44) of a Uniflow cleaner are connected by a generally cylindrical channel dam segment (38) which has an annular inwardly extending channel dam (42). The narrow end of the inverted cone (44) is connected to a separation body (50) through which a vortex finder (60) extends into the inverted cone (44). The light reject particles (32) are removed from the input flow (26) through the vortex finder (60). Accepts (28) and heavy rejects (30) flow into an inverted hydrocyclone chamber (72) within the separation body (50) defined between an outer cylindrical ring (62) and an inner cylindrical ring (64) and the vortex finder (60). An annular heavy rejects chamber (66) is defined exterior to the outer ring (62), and fluid is drawn off tangentially therefrom. Accepts (28) flow downwardly through the inner ring (64) into a bowl (56) beneath the separation body (50), where they are removed from an accepts outlet (82). The cylindrical or concave surfaces of the separation body (50) are economical to manufacture.

La tête d'injection conventionnelle (22) et le cône inversé (44) d'un nettoyeur de type Uniflow sont connectés par un segment barrage canalaire (38) de forme généralement cylindrique qui comporte un barrage canalaire annulaire (42) se développant vers l'intérieur. L'extrémité rétrécie du cône inversé (44) est reliée à un corps de séparation (50) traversé par un diaphragme (60). Les éléments retenus (28) et les rejets lourds (30) pénètrent en écoulement dans une chambre hydrocyclone inversée (72) à l'intérieur du corps de séparation (50) défini entre une bague cylindrique extérieure (62) et une bague cylindrique intérieure (64) et le diaphragme (60). Une chambre annulaire à rejets lourds (66) est définie à l'extérieur de la bague extérieure (62), le fluide étant aspiré tangentiellement. Les éléments retenus (28) descendent par écoulement par la bague intérieure (64) et pénètrent dans un réceptacle (56) situé en dessous du corps de séparation (50), où ils sont retirés d'un orifice d'évacuation des éléments retenus (82). La fabrication des surfaces cylindriques ou concaves du corps de séparation (50) est peu coûteuses.

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