A method for monitoring, controlling, and/or regulating the operation of a centrifuge, in particular a separator, during the centrifugal processing of a product, in particular when clarifying a product and/or when separating a product into different liquid phases. The centrifuge has a drum which can be rotated by a drive spindle, a drum mounting, and a drive motor. Force measurements are performed using one or more force sensors and analyzed, and an output is provided in the event of a deviation from a specified behavior and/or the analyses are used for or during the control and/or regulation of the operation of the centrifuge.

A method for monitoring, controlling, and/or regulating the operation of a centrifuge, in particular a separator, during the centrifugal processing of a product, in particular when clarifying a product and/or when separating a product into different liquid phases. The centrifuge has a drum which can be rotated by a drive spindle, a drum mounting, and a drive motor. Force measurements are performed using one or more force sensors and analyzed, and an output is provided in the event of a deviation from a specified behavior and/or the analyses are used for or during the control and/or regulation of the operation of the centrifuge.

An exchangeable separation insert for a centrifugal separator includes a rotor casing enclosing a separation space in which a stack of separation discs is arranged, and first and second stationary portions. A feed inlet supplies a fluid mixture to the separation space. The insert includes a light phase outlet and a heavy phase outlet. The feed inlet is arranged at a first axial end of the rotor casing. One of the light phase outlet and heavy phase outlet is arranged at a second axial end. A first rotatable seal seals and connects the feed inlet and a second rotatable seal seals and connects one of the light phase outlet and heavy phase outlet.

An exchangeable separation insert for a centrifugal separator includes a rotor casing enclosing a separation space in which a stack of separation discs is arranged, and first and second stationary portions. A feed inlet supplies a fluid mixture to the separation space. The insert includes a light phase outlet and a heavy phase outlet. The feed inlet is arranged at a first axial end of the rotor casing. One of the light phase outlet and heavy phase outlet is arranged at a second axial end. A first rotatable seal seals and connects the feed inlet and a second rotatable seal seals and connects one of the light phase outlet and heavy phase outlet.

A centrifugal field-flow fractionation device capable of improving analysis performance and shortening analysis time is provided. A first channel 111 communicating with a channel member is formed on a rotational shaft 11 that rotates together with a rotor. A second channel 644 communicating with the first channel 111 is formed on a fixing portion 60 fixed in a state of facing the rotational shaft 11 along a rotational axis L. A mechanical seal 66 having a pair of seal rings 661 and 662 that come into contact with each other and a biasing member 663 is provided to attach one seal ring 661 to the rotational shaft 11 and the other seal ring 662 to the fixing portion 60. The biasing member 663 biases the pair of seal rings 661 and 662 in a direction in which the pair of seal rings come in contact with each other. Since the rotational shaft 11 can be rotated at a high speed and the liquid sample can be fed at a high pressure, the analysis performance can be improved and the analysis time can be shortened.

The invention relates to a centrifuge (10), comprising a rotor (12), a drive shaft (14), on which the rotor (12) is supported, a motor (18), which drives the rotor (12) by means of the drive shaft (14), a supporting unit (30) having damping elements (36), each of which comprises a spring axis (36a), which supporting unit supports a rotational unit (19), which comprises the motor (18) together with the drive shaft (14) and the rotor (12), a sensor unit (82, 84) for sensing the rotational speed, a distance sensor (80) for determining imbalances of the rotational unit (19), which rotational unit rotates about an axis of rotation (14a), an acceleration sensor (88) for determining imbalances of the rotational unit (19), and a control and evaluation unit (90), which evaluates the data of the sensors (80, 82, 88), wherein the distance sensor (80) senses distance changes in an operative axis (36b). The invention is characterized in that the operative axis (36b) is oriented in relation to the axis of rotation (14a) in such a way that an angle between the operative axis (36b) and the axis of rotation (14a) of less than 90° including 0° results, at least in a projection onto a plane parallel to the operative axis (36b) and through the axis of rotation (14a).

A support structure for a rotation driving system having a ball balancer includes: a motor having a rotational shaft coupled to a rotational shaft of a rotor; the ball balancer provided on the rotor to reduce oscillating motion of the rotor; and a support part for coupling the motor to a housing, wherein the motor is coupled to the housing via an elastic member on a line in one direction (x-axis) perpendicular to an axial direction (z-axis) of the rotational shaft of the motor, and the motor is allowed to swing about the x-axis due to elastic deformation of the elastic member.

A rotary vessel for a filter assembly has a rotor body rotatable about an axis of rotation and a spigot, integral or coupled with the rotor body, extending away from the rotary body along the axis of rotation. The spigot has an abutment surface against which, in use, a cooperating surface of the filter assembly abuts to inhibit movement of the rotary vessel relative to the cooperating surface and parallel to the axis of rotation. The filter assembly has a housing with main body and closure member separably attachable to the main body. The closure member retains the rotary vessel inside the housing and is separable from the main body to permit removal of the rotary vessel from the housing. A connector releasably couples the closure member to the rotary vessel such that the rotary vessel is removable from the housing by separating closure member and main body.

A rotary vessel for a filter assembly has a rotor body rotatable about an axis of rotation and a spigot, integral or coupled with the rotor body, extending away from the rotary body along the axis of rotation. The spigot has an abutment surface against which, in use, a cooperating surface of the filter assembly abuts to inhibit movement of the rotary vessel relative to the cooperating surface and parallel to the axis of rotation. The filter assembly has a housing with main body and closure member separably attachable to the main body. The closure member retains the rotary vessel inside the housing and is separable from the main body to permit removal of the rotary vessel from the housing. A connector releasably couples the closure member to the rotary vessel such that the rotary vessel is removable from the housing by separating closure member and main body.

A discontinuous centrifuge consists of a rotatable centrifuge drum incorporating a drive spindle, a casing and a base. A hub of the centrifuge drum comprises a plurality of arms for the indirect or direct connection of the casing of the centrifuge drum to the drive spindle of the centrifuge drum. A scraper serves for scraping a product off the inner wall of the casing of the rotatable centrifuge drum. The scraper comprises an element which is pivotal about an axis, which axis extends in parallel with the axis of rotation of the centrifuge drum. The element comprises a blade which extends over almost the entire height of the centrifuge drum and makes contact with the product after the pivotal movement. The scraper is not moveable vertically. The arms of the hub have upper surfaces which are located below the drum base. The scraper is mounted independently of the swinging suspension of the centrifuge drum.