A vibration isolation holding device includes a body portion and an abutment member. The abutment member is arranged between the body portion and a bearing housing, and has an abutment surface abutting on the bearing housing, when a cartridge is held. A biasing member is disposed between the abutment member and the body portion. An interval between the body portion and the abutment member is regulated by a first regulating portion to be shorter than a natural length of the biasing member.

In a continuous centrifuge, a core end surface component separated from a core body is arranged inside a rotor, an air trap mechanism which automatically captures bubbles inside a sample is formed, and the bubbles are removed by centrifugal separation before the sample is sent to an outer circumferential portion having a high liquid pressure. In addition, when viewed in the axial direction, the core body and an upper rotor cover abut each other, and the core end surface component and a lower rotor cover abut each other, with appropriate pressure by biasing the core end surface component and the core body with a spring. Because a flow path between the rotor core and the rotor covers is maintained in a perfect state and the bubbles in liquid are also removed, the flow path may not be blocked by the bubbles and the centrifugal separation can be stably performed.

In a continuous centrifuge, a core end surface component separated from a core body is arranged inside a rotor, an air trap mechanism which automatically captures bubbles inside a sample is formed, and the bubbles are removed by centrifugal separation before the sample is sent to an outer circumferential portion having a high liquid pressure. In addition, when viewed in the axial direction, the core body and an upper rotor cover abut each other, and the core end surface component and a lower rotor cover abut each other, with appropriate pressure by biasing the core end surface component and the core body with a spring. Because a flow path between the rotor core and the rotor covers is maintained in a perfect state and the bubbles in liquid are also removed, the flow path may not be blocked by the bubbles and the centrifugal separation can be stably performed.

In a continuous centrifuge, a core end surface component separated from a core body is arranged inside a rotor, an air trap mechanism which automatically captures bubbles inside a sample is formed, and the bubbles are removed by centrifugal separation before the sample is sent to an outer circumferential portion having a high liquid pressure. In addition, when viewed in the axial direction, the core body and an upper rotor cover abut each other, and the core end surface component and a lower rotor cover abut each other, with appropriate pressure by biasing the core end surface component and the core body with a spring. Because a flow path between the rotor core and the rotor covers is maintained in a perfect state and the bubbles in liquid are also removed, the flow path may not be blocked by the bubbles and the centrifugal separation can be stably performed.

In a continuous centrifuge, a core end surface component separated from a core body is arranged inside a rotor, an air trap mechanism which automatically captures bubbles inside a sample is formed, and the bubbles are removed by centrifugal separation before the sample is sent to an outer circumferential portion having a high liquid pressure. In addition, when viewed in the axial direction, the core body and an upper rotor cover abut each other, and the core end surface component and a lower rotor cover abut each other, with appropriate pressure by biasing the core end surface component and the core body with a spring. Because a flow path between the rotor core and the rotor covers is maintained in a perfect state and the bubbles in liquid are also removed, the flow path may not be blocked by the bubbles and the centrifugal separation can be stably performed.

In a method of separating a liquid mixture in a centrifugal separator, the centrifugal separator includes a centrifuge bowl arranged to rotate around an axis of rotation and in which the separation of a liquid mixture takes place; a frame which delimits a surrounding space that is sealed relative the surroundings of the frame and in which the centrifuge bowl is arranged; a drive member configured to rotate the centrifuge bowl in relation to the frame around the axis of rotation, wherein the centrifuge bowl further comprises an inlet for receiving the liquid mixture to be separated, at least one liquid outlet for discharging a separated liquid phase and a sludge outlet for discharging a separated sludge phase to the surrounding space and a vessel connected to the surrounding space and arranged for collecting the separated sludge phase discharged from the centrifuge bowl. The method includes supplying a liquid feed mixture to be separated to the inlet of the centrifuge bowl; separating the liquid feed mixture into at least one separated liquid phase and a separated sludge phase; removing gas from the surrounding space to obtain a sub-atmospheric pressure in the surrounding space; discharging a separated sludge phase to the surrounding space; collecting the sludge phase in the vessel; removing the sludge phase from the vessel; and spraying liquid into the vessel after removing the sludge phase from the vessel to reduce the level of foam present in the vessel.

In a method of separating a liquid mixture in a centrifugal separator, the centrifugal separator includes a centrifuge bowl arranged to rotate around an axis of rotation and in which the separation of a liquid mixture takes place; a frame which delimits a surrounding space that is sealed relative the surroundings of the frame and in which the centrifuge bowl is arranged; a drive member configured to rotate the centrifuge bowl in relation to the frame around the axis of rotation, wherein the centrifuge bowl further comprises an inlet for receiving the liquid mixture to be separated, at least one liquid outlet for discharging a separated liquid phase and a sludge outlet for discharging a separated sludge phase to the surrounding space and a vessel connected to the surrounding space and arranged for collecting the separated sludge phase discharged from the centrifuge bowl. The method includes supplying a liquid feed mixture to be separated to the inlet of the centrifuge bowl; separating the liquid feed mixture into at least one separated liquid phase and a separated sludge phase; removing gas from the surrounding space to obtain a sub-atmospheric pressure in the surrounding space; discharging a separated sludge phase to the surrounding space; collecting the sludge phase in the vessel; removing the sludge phase from the vessel; and spraying liquid into the vessel after removing the sludge phase from the vessel to reduce the level of foam present in the vessel.

A vacuum centrifuge (10) has a housing (15) and a vacuum chamber (14a) which is disposed in the housing (14) and is connected to a vacuum pump (26) via a suction line system (24, 48) in order to generate a required vacuum in the vacuum chamber (14a). The vacuum centrifuge (10) has a rotor (12), mounted rotatably about its rotor axis (12a) in the vacuum chamber (14a) and provided with sample container receptacles (64) for introducing sample containers (66) into the sample container receptacles (64). The vacuum centrifuge (10) also comprises a cover (16) disposed on the housing (14), closes the vacuum chamber (14a) in a vacuum-tight manner and, in the open state, frees the rotor (12) to enable loading and unloading of the rotor (12) with sample containers (66). Only one drive motor (52a) is provided for the rotor (12), disposed outside the vacuum chamber (14a) and coupled to the rotor (12) in the vacuum chamber (14a) to transmit the driving torque as part of a first drive mechanism. The rotor (12) is designed as a rotor of a dual centrifuge.

A vacuum centrifuge (10) has a housing (15) and a vacuum chamber (14a) which is disposed in the housing (14) and is connected to a vacuum pump (26) via a suction line system (24, 48) in order to generate a required vacuum in the vacuum chamber (14a). The vacuum centrifuge (10) has a rotor (12), mounted rotatably about its rotor axis (12a) in the vacuum chamber (14a) and provided with sample container receptacles (64) for introducing sample containers (66) into the sample container receptacles (64). The vacuum centrifuge (10) also comprises a cover (16) disposed on the housing (14), closes the vacuum chamber (14a) in a vacuum-tight manner and, in the open state, frees the rotor (12) to enable loading and unloading of the rotor (12) with sample containers (66). Only one drive motor (52a) is provided for the rotor (12), disposed outside the vacuum chamber (14a) and coupled to the rotor (12) in the vacuum chamber (14a) to transmit the driving torque as part of a first drive mechanism. The rotor (12) is designed as a rotor of a dual centrifuge.