Self-driven centrifuge with vane module

A centrifuge, comprising:

• a separation vane module having a central axis of rotation, said separation vane module including
• a hub portion extending along said central axis of rotation,
• a plurality of vanes extending in an outward radial direction from said hub portion, said vanes extending along said central axis of rotation, and
• wherein each of said vanes has an outer peripheral edge that circumferentially extends with respect to said central axis of rotation and forms a turbulence shield to reduce particulate re-entrainment.

A centrifuge, comprising:

• a separation vane module having a central axis of rotation, said separation vane module including
• a hub portion extending along said central axis of rotation,
• a plurality of curved vanes extending in an outward radial direction from said hub portion, said vanes extending along said central axis of rotation, and
• wherein each of said vanes has a hyper-spiral shape in which a radially extending line from said axis of rotation intersects one of said vanes at a point of intersection, said radially extending line and a tangent line from said point of intersection define an angle that gradually increases as said point of intersection moves away from said hub portion.

A centrifuge, comprising:

• a separation vane module having a central axis of rotation, said separation vane module including
• a hub portion extending along said central axis of rotation,
• a plate provided at one end portion of said hub portion,
• a plurality of vanes each having an inner radial edge attached to said hub portion and an outer radial edge, said vanes extending in an outward radial direction from said hub portion, said vanes extending from said plate along said central axis of rotation, and
• wherein said plate has an outer edge that terminates at one quarter to three quarters the distance between said inner radial edges and said outer radial edges of said vanes.

A centrifuge, comprising:

• a rotor shell;
• and
• a separation vane module enclosed in said rotor shell, said separation vane module having a central axis of rotation, said separation vane module including
• a hub portion extending along said central axis of rotation,
• a plate provided at one end portion of said hub portion,
• a plurality of vanes each having an inner radial edge attached to said hub portion and an outer radial edge, said vanes extending in an outward radial direction from said hub portion, said vanes extending from said plate along said central axis of rotation,
• wherein a sludge collection zone is defined between said rotor shell and said outer radial edges of said vanes, and
• wherein said plate has an outer edge that terminates at one quarter to three quarters the distance between said inner radial edges and said outer radial edges of said vanes to minimize an average relative velocity of fluid in said sludge collection zone.

A centrifuge, comprising:

• a rotor shell;
• and
• a separation vane module enclosed in said rotor shell, said separation vane module having a central axis of rotation, said separation vane module including
• a hub portion extending along said central axis of rotation,
• a plate provided at one end portion of said hub portion,
• a plurality of vanes each having an inner radial edge attached to said hub portion and an outer radial edge, said vanes extending in an outward radial direction from said hub portion, said vanes extending from said plate along said central axis of rotation, and
• wherein each of said vanes has a portion that extends above said plate to reduce fluid slippage along said plate.