A centrifuge has a mechanical drive coupled to a capsule rotatable simultaneously about mutually orthogonal X, Y, and Z axes. A stationary base has a first motor driving a centrally located hub in rotation about the Z axis. The hub has a pair of colinear arms and a pair of struts extending from the arms to support an outer ring. An inner ring is positioned concentric with the outer ring and a second motor is engaged with both the outer ring and inner ring so that it is enabled for rotating the inner ring relative to the outer ring. A third motor is engaged with both the inner ring and the capsule for rotating said capsule relative to the inner ring. The simultaneous rotation of the capsule about all three axes is therefore possible.

A spherical centrifuge has a sinusoidal track engaged on its surface, the track circling the surface following a great circle of said centrifuge. A mechanical drive engages the track enabling rotation of the centrifuge. The track may have a constant sinusoidal amplitude and a constant sinusoidal period. The centrifuge may have an interior space and a portal into the interior space. The interior space may have any shape. The centrifuge rotates about its diameter while also reciprocating in rolling motion lateral to its forward rotational direction by following the sinusoidal track.

A spherical centrifuge has a sinusoidal track engaged on its surface, the track circling the surface following a great circle of said centrifuge. A mechanical drive engages the track enabling rotation of the centrifuge. The track may have a constant sinusoidal amplitude and a constant sinusoidal period. The centrifuge may have an interior space and a portal into the interior space. The interior space may have any shape. The centrifuge rotates about its diameter while also reciprocating in rolling motion lateral to its forward rotational direction by following the sinusoidal track.

A method and system for separating a suspension into solid and fluid components. The suspension is centrifuged about a substantially vertical axis of rotation to concentrate solid components in a first lower flow stream and fluid components in a first upper flow stream. The first upper flow stream may be centrifuged about a substantially vertical axis of rotation to concentrate solid components in a second lower flow stream and fluid components in a second upper flow stream. The first lower flow stream, the second lower flow stream, or both, may be centrifuged about a substantially horizontal axis of rotation to separate water from stackable dry tailings. The method and system may be applied to separation of tailings or other suspensions.

A method and system for separating a suspension into solid and fluid components. The suspension is centrifuged about a substantially vertical axis of rotation to concentrate solid components in a first lower flow stream and fluid components in a first upper flow stream. The first upper flow stream may be centrifuged about a substantially vertical axis of rotation to concentrate solid components in a second lower flow stream and fluid components in a second upper flow stream. The first lower flow stream, the second lower flow stream, or both, may be centrifuged about a substantially horizontal axis of rotation to separate water from stackable dry tailings. The method and system may be applied to separation of tailings or other suspensions.

A pusher centrifuge includes a rotatable filter drum having a drum body and a piston that are configured to be reciprocated axially relative to one another, a filter drum drive shaft rigidly connected to the filter drum, a hydraulic push mechanism for generating an axial oscillating push force and connected to the filter drum so as to cause the relative reciprocating movement between the piston and the drum body, a hydraulic pump including a pump input shaft and is in fluid connection with the hydraulic push mechanism, and a drive motor including at least one output shaft connected to the pump input shaft and the filter drum drive shaft to actuate both the pump input shaft and the filter drum drive shaft. The at least one output shaft of the drive motor is connected to the pump input shaft in a manner without an intervening gearbox, thereby forming a direct drive.

A pusher centrifuge includes a rotatable filter drum having a drum body and a piston that are configured to be reciprocated axially relative to one another, a filter drum drive shaft rigidly connected to the filter drum, a hydraulic push mechanism for generating an axial oscillating push force and connected to the filter drum so as to cause the relative reciprocating movement between the piston and the drum body, a hydraulic pump including a pump input shaft and is in fluid connection with the hydraulic push mechanism, and a drive motor including at least one output shaft connected to the pump input shaft and the filter drum drive shaft to actuate both the pump input shaft and the filter drum drive shaft. The at least one output shaft of the drive motor is connected to the pump input shaft in a manner without an intervening gearbox, thereby forming a direct drive.

A vertical cuttings dryer (VCD) can be used to separate solid particulate from entrained liquid. In some examples, the VCD includes a screen mounted coaxially with an internal wiper housing that carriers a wiper sweeping out an annular space between the screen and wiper housing. The VCD may have a first motor connected through drive shaft to the screen and a second motor connect through a separate drive shaft to the wiper housing. A controller can independently control the speed of the first motor and the second motor to independently a magnitude of centrifugal force applied to material being processed as well as a residence time of the material being processed in the annular space.

A vertical cuttings dryer (VCD) can be used to separate solid particulate from entrained liquid. In some examples, the VCD includes a screen mounted coaxially with an internal wiper housing that carriers a wiper sweeping out an annular space between the screen and wiper housing. The VCD may have a first motor connected through drive shaft to the screen and a second motor connect through a separate drive shaft to the wiper housing. A controller can independently control the speed of the first motor and the second motor to independently a magnitude of centrifugal force applied to material being processed as well as a residence time of the material being processed in the annular space.

Provided is a manual centrifugal device, including a rotating platform disposed with a rotating shaft, and a plurality of blood storage tubes fixed to the rotating platform at a regular intervals, wherein the rotating platform and the plurality of blood storage tubes rotate relative to the plane of placement during centrifugation. Further provided is a method for separating blood. The centrifugal device is driven manually to centrifugally separate blood cells and blood plasma, thereby greatly reducing the medical cost of blood examination and providing a more convenient and simple blood separation method for the low-resource areas.