A solid bowl centrifuge includes a rotatable drum having a cylindrical portion with length L.sub.1 and a conical portion with length L.sub.2, which, when added, give the length L.sub.T of the drum. A screw is arranged in the drum and is rotatable relative to the rotatable drum with a differential speed. At least two drum bearings for supporting the drum in the housing are spaced apart with a spacing L.sub.L. A spacing L.sub.L of the drum bearings for supporting the drum relative to one another is less than the length L.sub.T of the drum.

A centrifuge separator device for use in mining gold ore receives bulk quantities of gold bearing materials through a port in a central vertical pipe, diverting the materials through a series of rotating baffles into a multi-tiered bowl, with a variable speed bowl drive system turning the bowl and the baffles at a selected speed while framework, including a channeled bin, gussets and a plurality of blades extending a plurality of upper and lower cutters, remains stationary, forcing the materials to separate by density, forcing the lighter materials up and over the rotating bowl into a channeled bin for further disposal through an exit port in the channeled bin, leaving the heavier gold bearing ores in the lower part of the bowl for collection and further classification.

A centrifuge separator device for use in mining gold ore receives bulk quantities of gold bearing materials through a port in a central vertical pipe, diverting the materials through a series of rotating baffles into a multi-tiered bowl, with a variable speed bowl drive system turning the bowl and the baffles at a selected speed while framework, including a channeled bin, gussets and a plurality of blades extending a plurality of upper and lower cutters, remains stationary, forcing the materials to separate by density, forcing the lighter materials up and over the rotating bowl into a channeled bin for further disposal through an exit port in the channeled bin, leaving the heavier gold bearing ores in the lower part of the bowl for collection and further classification.

The invention relates to a sample carrier centrifuge for a sample carrier (24) that has at least one sample channel (26) extending along an essentially central sample channel longitudinal axis (P), having a sample carrier receptacle (14), which can be rotated around a rotation axis (R) and has a holding section (38) into which the sample carrier (24) can be inserted in a loading procedure when the sample carrier receptacle (14) is not rotating, in which section the sample carrier (24) is held in the loaded state of the sample carrier receptacle (14), and from which section the sample carrier (24) can be removed in an unloading procedure, which is characterized in that a platform (22) of the sample carrier centrifuge (10), which is embodied for supporting the sample carrier centrifuge (10) in accordance with its designated use, is oriented parallel to the rotation axis (R).

The invention relates to a sample carrier centrifuge for a sample carrier (24) that has at least one sample channel (26) extending along an essentially central sample channel longitudinal axis (P), having a sample carrier receptacle (14), which can be rotated around a rotation axis (R) and has a holding section (38) into which the sample carrier (24) can be inserted in a loading procedure when the sample carrier receptacle (14) is not rotating, in which section the sample carrier (24) is held in the loaded state of the sample carrier receptacle (14), and from which section the sample carrier (24) can be removed in an unloading procedure, which is characterized in that a platform (22) of the sample carrier centrifuge (10), which is embodied for supporting the sample carrier centrifuge (10) in accordance with its designated use, is oriented parallel to the rotation axis (R).

A device provides selective modes of vibrational oscillations and centrifugal rotations for preparing analysis samples. The device includes a base, an elastic connection body, a group of a synchronous unidirectional bearing inner ring and a synchronous unidirectional bearing outer ring, a group of an eccentric unidirectional bearing inner ring and an eccentric unidirectional bearing outer ring, and a synchronous fixed ring and a motor on the base. The eccentric unidirectional bearing outer ring is connected to a sample plate for holding the analysis samples.

A device provides selective modes of vibrational oscillations and centrifugal rotations for preparing analysis samples. The device includes a base, an elastic connection body, a group of a synchronous unidirectional bearing inner ring and a synchronous unidirectional bearing outer ring, a group of an eccentric unidirectional bearing inner ring and an eccentric unidirectional bearing outer ring, and a synchronous fixed ring and a motor on the base. The eccentric unidirectional bearing outer ring is connected to a sample plate for holding the analysis samples.

A rotary plate (1) of a centrifuge (2) having a pivoting plate (3) mounted thereon is provided, to carry out a rotational and/or pivoting movement of the pivoting plate (3) relative to the rotary plate (1). This allows the rotary plate (1) to be drivable by a drive (5) rotationally decoupled from the rotary plate (1).

A rotary plate (1) of a centrifuge (2) having a pivoting plate (3) mounted thereon is provided, to carry out a rotational and/or pivoting movement of the pivoting plate (3) relative to the rotary plate (1). This allows the rotary plate (1) to be drivable by a drive (5) rotationally decoupled from the rotary plate (1).

A solid bowl screw centrifuge has a rotatable drum, a screw arranged in the drum and rotatable relative to the rotatable drum with a differential speed, one or more drum bearings for bearing the drum, a sealing assembly arranged between a drum shaft portion and the housing for protecting at least one of the drum bearings from an ingress of constituents of a suspension. Each sealing assembly includes at least two radial shaft sealing rings arranged with a mutual axial spacing so as to form at least one chamber. Respective radial shaft sealing rings are arranged such that their respective sealing lips are directed away from the respective chamber. A gas source having a gas pressure can impinge on the respective chamber.