EP0409791B1 - Antrieb an einer Dekantierzentrifuge - Google Patents

Antrieb an einer Dekantierzentrifuge Download PDF

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Publication number
EP0409791B1
EP0409791B1 EP90810551A EP90810551A EP0409791B1 EP 0409791 B1 EP0409791 B1 EP 0409791B1 EP 90810551 A EP90810551 A EP 90810551A EP 90810551 A EP90810551 A EP 90810551A EP 0409791 B1 EP0409791 B1 EP 0409791B1
Authority
EP
European Patent Office
Prior art keywords
motor
hydraulic motor
drum
speed
drive according
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.)
Expired - Lifetime
Application number
EP90810551A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0409791A1 (de
Inventor
Heinrich Weder
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.)
Elatronic AG
Original Assignee
Elatronic AG
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4240405&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0409791(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Elatronic AG filed Critical Elatronic AG
Publication of EP0409791A1 publication Critical patent/EP0409791A1/de
Application granted granted Critical
Publication of EP0409791B1 publication Critical patent/EP0409791B1/de
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
    • B04B9/06—Fluid drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
    • B04B1/2016—Driving control or mechanisms; Arrangement of transmission gearing

Definitions

  • the invention relates to a drive on a decanter centrifuge according to the preamble of patent claim 1.
  • Decanter centrifuges also called decanters for short, have been used for the separation of large quantities of mixtures of solids and liquids in continuous operation for many years.
  • An electric motor is usually used as the drive machine, which drives the drum by means of a belt pull, whereby the worm, which requires low relative speeds but high torques, is driven via a rotating mechanical transmission as a torque converter, the low-torque connection of the transmission on resting system is supported.
  • one category of such drives uses the mechanically co-rotating gear, at the low-moment connection of which a positive or negative slip is generated, the size of which can be adjusted as desired in a given range.
  • Another category of such drives dispenses with the mechanical transmission as a torque converter by using a rotating, slow-running, high-torque hydraulic motor, the rotor of which drives the worm and the housing of which is connected to the drum, with the supply from a pump station which can be adjusted in quantity via a high-pressure rotary feedthrough rotating system is transmitted.
  • Such drive systems allow a screw relative speed which is completely independent of the main drive speed and, if the rotary feedthrough has a radial insertion, a coaxial arrangement of the two drive machines, as are listed, for example, in US Pat. No. 4,120,447 or FR-A-2 237 682.
  • Such an arrangement makes it possible to dispense with belt drives, especially if the main drive machine does not have a constant speed.
  • the main drive machine is rigidly attached to the machine bed.
  • this waiver means the important elimination of bearing transverse forces due to the belt traction on the main machine bearing, which has an advantageous effect on the service life and operational safety of these highly stressed elements.
  • Such a structure is made even more difficult if the machine rotor has certain degrees of freedom compared to the stationary system, be it a radial-elastic bearing suspension for vibration-related reasons or a degree of freedom from axial angularity in the case of oscillating vertical machines.
  • a connection to the main drive machine can only be established here using expensive and space-consuming universal joint systems.
  • the invention has for its object to provide a drive of the type mentioned that the above Avoids disadvantages and which is nevertheless inexpensive to manufacture and operationally reliable.
  • the main drive machine is suspended on the machine rotor. Since the hydraulic motor is very light at high power, it can withstand vibrations without any significant repercussions. The high-speed hydraulic motor also absorbs strong vibrations close to the critical speed.
  • the non-rotating housing of the high-speed hydraulic motor is symmetrically and elastically supported on a stationary mass according to a further development of the invention.
  • the feed lines for both machines are preferably flexible.
  • the drive has a high-torque, slow-running hydraulic motor I for generating a differential speed between the screw 1 and the drum 2 of the decanter centrifuge.
  • the stator 3 of the hydraulic motor I is rotatably connected to the drum 2, while the rotor 20 rotates with the screw 1.
  • the hydraulic motor I is supplied with hydraulic fluid via a rotary union D known per se, which hydraulic fluid is supplied and discharged via flexible lines 11.
  • the drive also has a high-speed hydraulic motor II, which drives the equipment mentioned with drum 2 and screw 1 and hydraulic motor I.
  • the hydraulic motor II is, for example, a swashplate machine or swashplate machine known per se, and is built over its output shaft 4 on the rotating equipment. Hydraulic fluid is supplied and discharged via flexible lines 7, which are connected to the non-rotating housing 16 of the hydraulic motor II. With one arm or with several arms L, the torque of the housing 16 is supported on the stationary mass 13. The torque of the case 16 is supported with several arms L symmetrically and elastically on the mass 13.
  • the elastic support is implemented, for example, with a rubber-elastic support 12. The arms L thus have no supporting function, but merely prevent the housing 16 from rotating.
  • the comparatively light hydraulic motor II can thus participate in vibrations of the output shaft 4, so to speak it can freely "dance" on this shaft 4.
  • the output shaft 4 rotates in a bearing 10 of the housing 16 and has a disk 14 arranged in the housing 16.
  • a rotor 9 has a plurality of pistons 8. The force of the pistons 8 on the disk 14 results in a torque on the output shaft 4 with which the drum system or the worm shaft 5 are driven directly.
  • the hydraulic motor II drives the drum system directly, while according to the versions according to FIGS. 2 and 4, the hydraulic motor II drives the worm shaft 5 directly.
  • the hydraulic motor I can be arranged outside a main bearing point B and according to FIGS. 3 and 4 within the main bearing point.
  • the connections of the rotary union D, which feed the hydraulic motor I, are accommodated in the housing 16 of the hydraulic motor II. This achieves a high degree of compactness, which an accommodation of the mentioned rotating union in the housing 16 can be increased.

Landscapes

  • Centrifugal Separators (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
EP90810551A 1989-07-21 1990-07-18 Antrieb an einer Dekantierzentrifuge Expired - Lifetime EP0409791B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2734/89 1989-07-21
CH2734/89A CH680836A5 (enrdf_load_stackoverflow) 1989-07-21 1989-07-21

Publications (2)

Publication Number Publication Date
EP0409791A1 EP0409791A1 (de) 1991-01-23
EP0409791B1 true EP0409791B1 (de) 1996-10-09

Family

ID=4240405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90810551A Expired - Lifetime EP0409791B1 (de) 1989-07-21 1990-07-18 Antrieb an einer Dekantierzentrifuge

Country Status (9)

Country Link
US (1) US5037372A (enrdf_load_stackoverflow)
EP (1) EP0409791B1 (enrdf_load_stackoverflow)
JP (1) JPH0360751A (enrdf_load_stackoverflow)
AT (1) ATE143833T1 (enrdf_load_stackoverflow)
AU (1) AU632346B2 (enrdf_load_stackoverflow)
BR (1) BR9003589A (enrdf_load_stackoverflow)
CH (1) CH680836A5 (enrdf_load_stackoverflow)
DE (1) DE59010529D1 (enrdf_load_stackoverflow)
RU (1) RU2038165C1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008015134A1 (de) * 2008-03-20 2009-10-01 Gea Westfalia Separator Gmbh Getriebeanordnung für eine Zentrifuge

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5344570A (en) * 1993-01-14 1994-09-06 James E. McLachlan Method and apparatus for removing solids from a liquid
JP2741564B2 (ja) * 1993-01-25 1998-04-22 アイセロ化学 株式会社 包装用複合フィルム袋
US5681256A (en) * 1994-11-10 1997-10-28 Nkk Corporation Screw decanter centrifuge having a speed-torque controller
DE19806374C1 (de) 1998-02-17 1999-07-01 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit mehrstufigem Umlaufgetriebe
US6699829B2 (en) 2002-06-07 2004-03-02 Kyzen Corporation Cleaning compositions containing dichloroethylene and six carbon alkoxy substituted perfluoro compounds
US20040138040A1 (en) * 2003-01-15 2004-07-15 Hensley Gary L. Decanter centrifuge control
DE50313167D1 (de) * 2003-04-22 2010-11-18 Viscotherm Ag Zentrifuge mit hydraulischer differenzdrehzahlbestimmung
EP1479443B1 (fr) * 2003-05-19 2005-11-09 Andritz-Guinard S.A.S. Système d'entraínement d'une centrifugeuse
US20110034313A1 (en) * 2009-08-06 2011-02-10 Andritz Separation Inc. Centrifuge with hydraulic drive unit
SI2525916T1 (sl) * 2010-09-13 2015-05-29 Hiller Gmbh Pogonska naprava v centrifugi s polĹľem
CN102861677A (zh) * 2012-09-21 2013-01-09 江苏亿鑫离心机制造有限公司 高强度耐磨耐蚀的螺旋卸料沉降离心机及其制造工艺

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH566817A5 (enrdf_load_stackoverflow) * 1973-07-21 1975-09-30 Cyphelly Ivan J
DE2547538A1 (de) * 1975-10-23 1977-05-05 Flottweg Werk Bruckmayer Druckdichte vollmantel-schneckenzentrifuge
CH647959A5 (de) * 1980-05-16 1985-02-28 Glyco Antriebstechnik Gmbh Dekanterzentrifuge mit hydraulischem differenzantrieb.
DE3103029A1 (de) * 1981-01-30 1982-08-26 Klöckner-Humboldt-Deutz AG, 5000 Köln Schneckenzentrifuge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008015134A1 (de) * 2008-03-20 2009-10-01 Gea Westfalia Separator Gmbh Getriebeanordnung für eine Zentrifuge

Also Published As

Publication number Publication date
EP0409791A1 (de) 1991-01-23
RU2038165C1 (ru) 1995-06-27
AU632346B2 (en) 1992-12-24
JPH0360751A (ja) 1991-03-15
ATE143833T1 (de) 1996-10-15
DE59010529D1 (de) 1996-11-14
BR9003589A (pt) 1991-08-27
CH680836A5 (enrdf_load_stackoverflow) 1992-11-30
AU5894690A (en) 1991-01-24
US5037372A (en) 1991-08-06

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