EP0642834A2 - Dispositif de verrouillage pour agencement de paliers en particulier pour la chambre de séparation d'une centrifugeuse - Google Patents

Dispositif de verrouillage pour agencement de paliers en particulier pour la chambre de séparation d'une centrifugeuse Download PDF

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Publication number
EP0642834A2
EP0642834A2 EP94113911A EP94113911A EP0642834A2 EP 0642834 A2 EP0642834 A2 EP 0642834A2 EP 94113911 A EP94113911 A EP 94113911A EP 94113911 A EP94113911 A EP 94113911A EP 0642834 A2 EP0642834 A2 EP 0642834A2
Authority
EP
European Patent Office
Prior art keywords
locking device
gear
rollers
race
carrier device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94113911A
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German (de)
English (en)
Other versions
EP0642834A3 (en
EP0642834B1 (fr
Inventor
Friedrich Witthaus
Wolfram Weber
Lothar Leick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fresenius SE and Co KGaA
Original Assignee
Fresenius SE and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fresenius SE and Co KGaA filed Critical Fresenius SE and Co KGaA
Publication of EP0642834A2 publication Critical patent/EP0642834A2/fr
Publication of EP0642834A3 publication Critical patent/EP0642834A3/de
Application granted granted Critical
Publication of EP0642834B1 publication Critical patent/EP0642834B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
    • B04B5/0442—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation

Definitions

  • the invention represents a locking device for a known bearing arrangement of a centrifuge.
  • the known bearing arrangement consists of at least three rotationally symmetrically arranged, in one plane, rotatably mounted, rotatably mounted on a bearing journal, which guide and support a race between them, the bearing journals on one Carrier device are arranged, which in turn is rotatably mounted about a central axis, which is aligned with the axis of rotation of the race and the race is driven by a drive device so that the carrier device and the race, with respect to a stationary housing, rotate at different angular speeds.
  • the centrifuge has a separation chamber designed as a disposable part, which has a race, to which a line is firmly connected and which is mounted between the rollers, the free-lying hose section or line part by means of a driver arranged on the rotating carrier device at half the angular speed compared to the rotating separation chamber is bypassed so that twisting about its longitudinal axis is avoided.
  • the carrier device is also referred to as a rotor in centrifuge technology.
  • a centrifuge with a generic bearing arrangement for storing the separation chamber is described, for example, in German patent application 42 20 232.9, which goes back to the applicant.
  • a similar bearing arrangement is known from JP 56 / 76260A.
  • a hollow cylindrical axle section is guided between a total of six rollers which are arranged one above the other in two levels, three rollers in the form of Ball bearings are arranged rotationally symmetrical.
  • a separation chamber is arranged on the substantially vertical hollow axis section at its upper end, and a drain line is connected at its lower end.
  • a free-floating section of the line is guided in the rotor and rotates at half the speed compared to the speed of the separation chamber in order to prevent the hose section or the entire drain line from twisting in itself.
  • the basic principle of moving the free-flying hose section around a rotating separation chamber at half the angular velocity is known from DE-PS 32 42 541, which goes back to the applicant.
  • the bearing arrangement known from the prior art is thus only very complicated to handle when replacing the guided race or axle section or a separation chamber connected to it, which is particularly troublesome where the bearing arrangement is used for a centrifuge in hospital operation.
  • Centrifuges with a generic bearing arrangement are used in particular for the cell separation of body-own liquids, such as blood, in particular, the separation chamber and the line firmly connected to it are often made of plastic as a disposable part.
  • the separation chamber and the line firmly connected to it are often made of plastic as a disposable part.
  • the bearing arrangement known from the prior art leads to a considerable time delay when such a centrifuge is used with a generic bearing arrangement.
  • the invention is therefore based on the object of providing a locking device for a generic bearing arrangement which enables the race and in particular a separation chamber connected to it to be removed or inserted quickly, and which is easy to use and robust.
  • a locking device in which the bearing pins are arranged eccentrically on bolts rotatably mounted in the carrier device relative to the latter, in which a gear component rotating or rotating with the same angular velocity as the carrier device with the bolts so is engaged in that the bolts engaged with the gear component are simultaneously rotated relative to the carrier device when the gear component rotates, and the gear component is coupled to a shaft mounted in the housing via at least one coupling member, and means are provided around the gear component impress a relative movement with respect to the carrier device.
  • the invention is particularly directed to a bearing arrangement in which only three rollers are arranged rotationally symmetrically in one plane.
  • the invention also for a bearing arrangement in which at least six rollers in two Layers are arranged one above the other, as is known from the prior art.
  • the gear component which is in engagement with the bolts supporting the bearing journals of the rollers, has a hollow shaft which is arranged coaxially with the axis of rotation of the carrier device or the rotor and with the axis of rotation of the race.
  • a hollow shaft is connected at its upper end to a gearwheel which engages with gearwheels arranged on the circumference of a bolt.
  • the gearwheels arranged on the circumference of the bolts can be designed as segments, so that a toothing is provided only in the area in which it is actually needed.
  • the described design of a locking device according to the invention in which toothing is used to couple the gear component to the bolt, creates a particularly robust design, which is particularly suitable for continuous operation in hospitals. It is also provided to further promote a compact design of the entire bearing arrangement or centrifuge that the hollow shaft is mounted on roller bearings in a bearing flange rotating with the rotor, that a gear shaft for driving the race is supported on roller bearings in the hollow shaft and that the rotor is supported in the housing via roller bearings. In this way, a concentric structure of the entire arrangement is created, so to speak, which enables a space-saving arrangement of all roller bearings and contributes to the compact construction of the entire device.
  • a motor arranged on the housing is provided with an output shaft on which two disks are arranged, of which a first drives the rotor via a first traction means, in particular in the form of a drive belt, and a second pulley via a second traction means, again in the form of a drive belt, drives the hollow shaft at the same speed.
  • a first traction means in particular in the form of a drive belt
  • a second pulley via a second traction means again in the form of a drive belt
  • both the running and the running run of the drive belt are each guided around a shift pulley, the axes of the shift pulleys being displaceable in a direction transverse to the direction of movement of the drive belt.
  • the axes of the two switching rollers are preferably arranged on a common, displaceable carriage which can also be connected to an actuating means, for example in the form of a linear motor, which can be controlled electrically. It is preferably provided that the wrap angle of each strand around a switching roller is 180 °. It is advantageous to arrange the drive belt in such a way that the outside of the drive belt is guided on the two switching rollers, while the inside faces the driving pulley. Two further rollers in the form of tensioning rollers are advantageously provided, which enable a wrap angle of 180 ° around the switching rollers and keep the belt tension at a tension necessary for the functioning.
  • an arrangement can be selected in which the hollow shaft is driven via an epicyclic gear, in particular a planetary gear, it being possible in particular for the hollow shaft to be surrounded by a ring gear of the planetary gear, dad auf a roller bearing is supported, which is supported on the outside of the hollow shaft.
  • a flange can be arranged, which acts as a planet carrier and carries planet gears, which are driven by a sun gear arranged on the central gear shaft, the translation of the entire planetary gear being selected so that the hollow shaft rotates at the same speed as the rotor or the carrier device for the journals of the rollers holding the race.
  • the ring gear With the ring gear stationary, normal operation of the centrifuge is possible.
  • the ring gear can be rotated, for example by a drive belt resting thereon, or preferably via an external toothing in which a gearwheel engages an actuating motor.
  • rollers which lie only in one plane, but an arrangement of rollers in more than one plane, in particular in two planes, is readily possible.
  • the rollers have a tread which is concave or convex in cross-section and the race has a tread which is complementarily convex or concave in cross-section, so that in the axial direction when the rollers are brought together, that is to say a closed locking device in the axial direction of the separation chamber or the race is provided with a positive connection, so that the race and the part connected to it, in particular a separation chamber, are reliably guided.
  • the locking device designed according to the invention makes it possible to use stationary, i.e. provide non-rotating controls, which are arranged, for example, on the housing of a centrifuge, so that the handling of the locking device is very simple. Furthermore, electrical actuation of the locking device is readily possible without an electrical switching current having to be conducted via rotating contacts, for example in the form of slip rings. Furthermore, the lock according to the invention can be operated in any position of the rotor (the carrier device).
  • the invention is suitable for all rotating bearing arrangements in which a movement from a stationary housing is to be initiated in a rotating system, for example a rotor.
  • FIG. 3 which represents the second exemplary embodiment, identical or functionally identical parts are designated by the same reference symbols.
  • a centrifuge 10 has a separation chamber 12 in which a liquid, for example blood, is to be separated into components of different densities.
  • the separation chamber 12 is formed in one piece with a race 14, the running surface 16 of which is convex in cross section. With the convex tread 16, the race 14 engages in complementarily concave treads 18 of three rollers 20, only one of which is visible in FIGS. 1 and 3 because of the cut.
  • the three rollers 20 lie in one plane and are rotationally symmetrical, i.e. with a central angle of 120 °.
  • Each roller 20 is mounted on a journal 22 by means of two ball bearings 24.
  • the separation chamber 12 has a flange 26 following the race 14, which has an external toothing 28.
  • the shaft 32 is supported by two ball bearings 34 in a carrier device 36, which is also referred to as a rotor.
  • the shaft 32 is co-operated by a motor 38 with an output shaft 40 via a gear.
  • the output shaft 40 carries at its one end facing away from the motor 38 a pulley 42, which in this context is referred to as the third pulley.
  • the third Pulley 42 drives via a drive belt 44 a pulley 48 arranged at one end of a centrally arranged drive shaft 46 and thus the drive shaft itself.
  • the drive shaft 46 carries at its other end a toothed wheel 50 which, with another toothed wheel 52 arranged on shaft 32 Reduction forms.
  • the motor 38 thus drives via the output shaft 40, the traction mechanism gear consisting of the pulley 42, drive belt 44 and pulley 48, the drive shaft 46, the reduction gear consisting of the gear wheels 50 and 52, the shaft 32 and the pinion 30 provided with the external toothing 28 Flange 26 and thus the separation chamber 12, which rotates, whereby heavier components of the blood are collected towards the outside due to the centrifugal forces that arise, while lighter components can be drawn off through a hose 54 connected centrally to the separation chamber 12.
  • the separation chamber 12 is mounted on the race 14 between the three rollers 20, the bearing pin 22 of which, like the shaft 32, are also mounted in the carrier device 36.
  • the separation chamber 12 is formed in one piece with the race 14 and the gear flange 26 and firmly connected to the hose 54. Both parts are made as a disposable part made of plastic.
  • the hose 54 is articulated to the carrier device 36 via a driver 58, which is designed as a rotor and is driven at half the angular speed with which the separation chamber 12 rotates during operation.
  • a driver 58 which is designed as a rotor and is driven at half the angular speed with which the separation chamber 12 rotates during operation.
  • This construction which is known per se, makes it possible to firmly connect the hose 54 to the separation chamber 12 and to rubbing seals such as For example, to dispense with mechanical seals.
  • the hose is passed between two rollers 20.
  • the rotor 36 consists of a substantially hollow cylindrical part 60 which continues downwards to a cylindrical flange 62 of smaller diameter.
  • Two ball bearings 64 are arranged on the flange 62, by means of which the rotor 36 is mounted in a housing 66.
  • the housing 66 does not rotate and thus forms a fixed coordinate system for the further description.
  • the motor 38 already mentioned is flanged to the housing 66.
  • the flange 62 of the rotor 36 continues into a pulley 68 which is driven by a belt 70.
  • the belt 70 runs on a pulley 72, which in turn is arranged on the output shaft 40 of the motor 38 and thus rotates at the same angular speed as the pulley 42.
  • the pulley 72 is also referred to in this context as the first pulley.
  • the overall transmission ratio of the drive train described for the separation chamber 12 and the transmission ratio from the output shaft 40 to the rotor 36 is such that the required double speed ratio for the separation chamber 12 occurs.
  • the rotor 36 takes the free-flying hose section 56 of the hose along with the driver 58, as a result of which the hose 54 remains untwisted despite the rotation of the separation chamber 12.
  • the bearing pins 22 of the rollers 20 are arranged eccentrically on bolts 74 which are rotatably arranged in the carrier device or in the rotor 36 by means of bearings 76.
  • bolts 74 are rotatably arranged in the carrier device or in the rotor 36 by means of bearings 76.
  • the bearing pins 22 of the rollers 20 are arranged eccentrically on bolts 74 which are rotatably arranged in the carrier device or in the rotor 36 by means of bearings 76.
  • the bearing pins 22 of the rollers 20 are arranged eccentrically on bolts 74 which are rotatably arranged in the carrier device or in the rotor 36 by means of bearings 76.
  • the bearing pins 22 of the rollers 20 are arranged eccentrically on bolts 74 which are rotatably arranged in the carrier device or in the rotor 36 by means of bearings 76.
  • the bearing pins 22 of the rollers 20 are arranged eccentrically on bolts 74 which are rotatably
  • the toothed circumferential styles of the segment-shaped gearwheels 82 are in engagement with a centrally arranged gearwheel 84 which is shrunk onto a hollow shaft 86 which runs coaxially with the drive shaft 46 and the axes of rotation of the rotor 36 and the separation chamber 12.
  • the hollow shaft 86 is supported by ball bearings 88 on the inside of the flange 62 of the rotor 36.
  • the inside of the hollow shaft 86 in turn forms a bearing surface for the central drive shaft 46 for the separation chamber 12, which is supported by bearings 90.
  • the pulley 92 carries on its periphery a belt 94 which is driven by a pulley 96, which is referred to as a second pulley in the context of this description.
  • the translation i.e. the ratio of the diameter between the pulley 68 of the rotor 36 and the driving first pulley 72 is the same as that between the pulley 92 of the hollow shaft 86 and the second driving pulley 96, so that the rotor 36 and the hollow shaft 86 rotate at the same angular speed when the motor 38 is switched on.
  • the gear 84 which engages with the bolts 74 via the gear segments 82 can be defined more generally as a gear component.
  • the gear component 84 rotates at the same speed or angular speed as the rotor 36.
  • means are provided provided to generate a relative movement between the gear component 84 connected to the hollow shaft 86 and the rotor 36 (carrier device). These means are designated schematically in FIG. 1 with the reference number 100 and are shown in FIG. 2 as a schematic diagram.
  • Fig. 2 shows a view of the cross section II-II in Fig. 1 seen from below. Accordingly, the first driving pulley 72 and the second driving pulley 96 in Fig. 2 are consecutive.
  • the drive belt 70 which rotates the pulley 68 of the rotor 36, is indicated.
  • the second drive belt 94 which runs over the second belt pulley 96 and the belt pulley 92 of the hollow shaft 86, - assuming that the drive pulleys turn clockwise in FIG. 2 - consists of a running or, in other words, driving strand 102 and a running, free strand 104.
  • the entire belt 94 runs over a total of four rollers 106, 108A, 108B and 110.
  • Two switching rollers 108A and 108B are arranged on a movable carriage 112 with respect to two tensioning rollers 106 and 110 so that the strand 104 around the Shift roller 108A is guided with a wrap angle of 180 °, just like the strand 102 around the shift roller 108B.
  • the tensioning rollers 106 and 110 can be spring-loaded and provide the necessary belt tension.
  • the carriage 112 can be moved between two positions, the strand 104 being shortened while the motor 102 is stopped, ie the pulley 96 is stationary when the carriage 112 is moved to the left in FIG.
  • the marking 114 being rotated by 90 °. If the two rollers 108A and 108B are together with the carriage 112 in FIG. 2 in the position indicated on the left, the marking 114 is accordingly in the position shown on the right of the two. In this way, the hollow shaft 86 and with it the gear wheel 84 can be rotated relative to the rotor 36, possibly also with the motor 38 running, whereby the bolts 74 are rotated such that the bearing journals 22 arranged on them and with them the profiled rollers 20 be pivoted outwards thereby making it possible to lift the separation chamber 12 upwards, with the hose 54 sliding between two rollers 20.
  • the carriage 112 can be connected to an actuating rod, not shown in FIG. 2, which is actuated either manually or by means of a linear motor.
  • an electronic control can be provided which only permits the carriage 112 to be moved and thus the locking to be opened only when the separation chamber 12 has come to a standstill.
  • FIG. 3 shows an alternative embodiment of the invention, in which the means for rotating the gear component or gear 84 relative to the rotor 36 are designed alternatively.
  • the other structure of the centrifuge shown in FIG. 3 corresponds to that shown in FIG. 1, so that the same parts will not be explained again.
  • no pulley 92 is arranged at the lower end of the hollow shaft 86, but a flange 120, which serves as a planet carrier for planet gears 122 of a planetary gear.
  • the planet gears run around a ring gear 124 which is stationary during normal operation of the centrifuge and are driven by a sun gear 126 connected to the central drive shaft 46.
  • the pulley 42 connected to the output shaft 40 of the motor 38 drives the drive belt 44 and the pulley 48 the central drive shaft 46, as in the embodiment shown in FIG. 1.
  • the translation of the epicyclic gear (planetary gear) consisting of sun gear 126, planet gears 122 and ring gear 124 is such that the speed of the planet gear carrier 120 and thus the hollow shaft 86 is the same as the speed of the rotor 36, which is via the pulley 68 and the drive belt 70 is driven by the pulley 72.
  • a rotary movement is initiated via a second servomotor 138, an output shaft 140 and a gear 142 via an external toothing 144 of the ring gear 124, so that the planet carrier 120 is rotated when the sun gear 126 is at a standstill, synonymous with a relative rotation of the Hollow shaft 86 with respect to the rotor 36, as a result of which the gear component or gear 84 rotates the bolts 74 via the gear segments 82 and thus moves the rollers 20 apart, as the symbolic representation 80 indicates.
  • the servomotor 138 can also be made in this embodiment for the servomotor 138 to be provided with an electronic control which prevents the lock from being opened while the separation chamber 12 is being driven.

Landscapes

  • Centrifugal Separators (AREA)
  • Mounting Of Bearings Or Others (AREA)
EP94113911A 1993-09-11 1994-09-06 Dispositif de verrouillage pour agencement de paliers en particulier pour la chambre de séparation d'une centrifugeuse Expired - Lifetime EP0642834B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4330905 1993-09-11
DE4330905A DE4330905C2 (de) 1993-09-11 1993-09-11 Verriegelungsvorrichtung für eine Lageranordnung einer Separationskammer einer Zentrifuge

Publications (3)

Publication Number Publication Date
EP0642834A2 true EP0642834A2 (fr) 1995-03-15
EP0642834A3 EP0642834A3 (en) 1995-04-19
EP0642834B1 EP0642834B1 (fr) 1998-02-04

Family

ID=6497500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94113911A Expired - Lifetime EP0642834B1 (fr) 1993-09-11 1994-09-06 Dispositif de verrouillage pour agencement de paliers en particulier pour la chambre de séparation d'une centrifugeuse

Country Status (5)

Country Link
US (1) US5558769A (fr)
EP (1) EP0642834B1 (fr)
JP (1) JPH07213952A (fr)
DE (2) DE4330905C2 (fr)
ES (1) ES2114640T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140033864A1 (en) * 2011-09-22 2014-02-06 Fenwal, Inc. Drive system for centrifuge
EP2698208A1 (fr) * 2012-08-14 2014-02-19 Fresenius Kabi Deutschland GmbH Dispositif de centrifugation et procédé de fonctionnement dýun dispositif de centrifugation
US9198851B2 (en) 2012-01-23 2015-12-01 L'oreal Composition comprising at least one specific alkoxysilane polymer
US9334927B2 (en) * 2011-09-22 2016-05-10 Fenwal, Inc. Drive system for centrifuge with planetary gear and flexible shaft
CN108325761A (zh) * 2018-02-10 2018-07-27 王惠珍 一种饲料用酶制备装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19806374C1 (de) * 1998-02-17 1999-07-01 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit mehrstufigem Umlaufgetriebe
DK2525916T3 (en) * 2010-09-13 2015-03-02 Hiller Gmbh A drive assembly in a Solid-bowl screw
DE102016212608B3 (de) * 2016-07-11 2018-01-11 B Medical Systems S.à r.l. Agitatoreinheit zur Verwendung mit einem Blutproduktlagersystem und Blutproduktlagersystem
CN109304058B (zh) * 2018-09-12 2021-06-18 潍坊医学院 一种草酸生物工程分离设备
EP4321255A1 (fr) * 2022-08-12 2024-02-14 Sigma Laborzentrifugen GmbH Centrifugeuse à courant parallèle et procédé d'amenée d'une centrifugeuse à courant parallèle à un état prêt à fonctionner

Citations (2)

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Publication number Priority date Publication date Assignee Title
US3986442A (en) * 1975-10-09 1976-10-19 Baxter Laboratories, Inc. Drive system for a centrifugal liquid processing system
JPS5676260A (en) * 1979-11-27 1981-06-23 Asahi Chem Ind Co Ltd Fluid communicating apparatus

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DE2848953A1 (de) * 1978-11-11 1980-05-22 Heraeus Christ Gmbh Trennzentrifuge
DE3242541A1 (de) * 1982-11-18 1984-05-24 Fresenius AG, 6380 Bad Homburg Zentrifuge
DE4220232A1 (de) * 1992-06-20 1993-12-23 Fresenius Ag Zentrifuge

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
US3986442A (en) * 1975-10-09 1976-10-19 Baxter Laboratories, Inc. Drive system for a centrifugal liquid processing system
JPS5676260A (en) * 1979-11-27 1981-06-23 Asahi Chem Ind Co Ltd Fluid communicating apparatus

Non-Patent Citations (1)

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Title
PATENT ABSTRACTS OF JAPAN vol. 5, no. 144 (C-071) 11. September 1981 & JP-A-56 076 260 (ASAHI CHEM. IND. CO) 23. Juni 1981 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140033864A1 (en) * 2011-09-22 2014-02-06 Fenwal, Inc. Drive system for centrifuge
US9334927B2 (en) * 2011-09-22 2016-05-10 Fenwal, Inc. Drive system for centrifuge with planetary gear and flexible shaft
US9347540B2 (en) * 2011-09-22 2016-05-24 Fenwal, Inc. Flexible shaft drive system for centrifuge with pivoting arms
US9198851B2 (en) 2012-01-23 2015-12-01 L'oreal Composition comprising at least one specific alkoxysilane polymer
EP2698208A1 (fr) * 2012-08-14 2014-02-19 Fresenius Kabi Deutschland GmbH Dispositif de centrifugation et procédé de fonctionnement dýun dispositif de centrifugation
WO2014027016A1 (fr) 2012-08-14 2014-02-20 Fresenius Kabi Deutschland Gmbh Dispositif centrifuge et procédé d'utilisation de celui-ci
CN104520011A (zh) * 2012-08-14 2015-04-15 费森尤斯卡比德国有限公司 离心装置及其操作方法
US9409187B2 (en) 2012-08-14 2016-08-09 Fresenius Kabi Deutschland Gmbh Centrifuge device including an actuating element and method for operating same
CN108325761A (zh) * 2018-02-10 2018-07-27 王惠珍 一种饲料用酶制备装置
CN108325761B (zh) * 2018-02-10 2018-12-14 东台市苏泰饲料有限公司 一种饲料用酶制备装置

Also Published As

Publication number Publication date
DE4330905C2 (de) 1995-06-14
DE4330905A1 (de) 1995-03-16
ES2114640T3 (es) 1998-06-01
US5558769A (en) 1996-09-24
JPH07213952A (ja) 1995-08-15
EP0642834A3 (en) 1995-04-19
EP0642834B1 (fr) 1998-02-04
DE59405212D1 (de) 1998-03-12

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