US3923241A - Decanting centrifuge - Google Patents

Decanting centrifuge Download PDF

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Publication number
US3923241A
US3923241A US489490A US48949074A US3923241A US 3923241 A US3923241 A US 3923241A US 489490 A US489490 A US 489490A US 48949074 A US48949074 A US 48949074A US 3923241 A US3923241 A US 3923241A
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US
United States
Prior art keywords
drum
hydraulic motor
worm
casing
motor
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
US489490A
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English (en)
Inventor
Ivan Jaroslav Cyphelly
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Moog GAT GmbH
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Individual
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Filing date
Publication date
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Publication of US3923241A publication Critical patent/US3923241A/en
Assigned to GLYCO-ANTRIEBSTECHNIK GMBH reassignment GLYCO-ANTRIEBSTECHNIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CYPHELLY, IVAN J.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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 drum is driven by a main motor and a y hydraulic motor is arranged between the drum and the 3 worm to provide a differential speed.
  • the hydraulic motor includes a casing rigidly connected to the drum [58] Fie'ld 233/] R 7 23 R and a shaft rigidly connected to the worm.
  • the main motor can also be a hydraulic motor arranged to receive the hydraulic medium from the same source as the other hydraulic motor with the [56] References cued flow of the hydraulic medium being controlled by a UNITED STATES PATENTS regulating vulva 3,126,337 3/1964 Smith 233 7 x 3,734,399 5/1973 Oas 233/7 6 Clam, 1 Drawmg DECANTING CENTRIFUGE SUMMARY OF THE INVENTION
  • the present invention is directed to a decanting centrifuge including a drum driven by a main motor and a worm rotatably mounted within the drum, more particularly, it concerns the arrangement of a hydraulic motor between the drum and the worm for providing differential speed between the drum and the worm.
  • a decanting centrifuge consists of a drum and a worm coaxially mounted in the drum and with both the drum and worm mounted for rotation.
  • Inlet and outlet openings are provided in the centrifuge for the material being processed.
  • the device includes a drive member to provide a relatively high speed and to insure a speed differential between the drum and the worm so that the worm can move dry, heavy material out of the drum.
  • the low differential speed is provided by a planetary or hobbing gear, but in such an arrangement the differential speed is rigidly coupled to the driving speed. Frequently, however, it is required that the differential speed be adjusted independently of the driving speed, especially when the material to be separated in clarification plants is irregular in its consistency.
  • the primary object of the present invention to provide a decanting centrifuge in which the differential drive is freely adjustable independently of the driving speed of the drum.
  • the present invention is based on the finding that the required high torques should be limited to the differential drive member and,
  • the decanting centrifuge produces the differential speed by the arrangement of a hydraulic motor between the drum and the worm with the hydraulic motor having a casing rigidly connected with the drum and having its shaft rigidly connected with the worm and, further, a rotary transmission arrangement is provided for supplying the hydraulic medium to the hydraulic motor.
  • the drawing is a view partly in section of a decanting centrifuge embodying the present invention.
  • a decanting centrifuge consisting of a fixed machine casing l in which a drum 2 is rotatably mounted at one end by a bearing 3 located in the casing and at its other end by a casing support 4 of a cumulative compound hydromotor 5 which is connected to the drum.
  • a worm 6 is coaxially mounted in the drum and is supported at one end by a bearing 7 positioned in the drum and at its other end by the shaft bearing of the hydromotor 5 whose shaft is connected to the wonn.
  • the drum is driven through the casing S of the cumulative compound hydromotor 5 by a shaft 8 of a main driving motor 9 which is also mediate the pump 11 and the transmissions 13, the supply line 12 branches off for supplying the hydraulic medium to the main driving motor 9.
  • the flow through the branch line is controlled by a regulating valve 14.
  • a return line 15 conducts the return flow of the hydraulic medium from the cumulative compound motor 5 and the main driving motor 9 to the pump 11.
  • the hydromotor is a fluid drive motor, specifically a hydrostatic motor, that is, where the driving means is a static pressurized fluid.
  • Such motor is also designated as a positive displacement motor.
  • a decanting centrifuge for separating solids and liquids from a mixture comprising a drum supported for rotation about an axis, a worm mounted within said drum for roation about said axis, a main drive motor coupled to said drum means for driving said drum at a first rotational speed, and drive means for driving said worm at a second speed different from said first speed, said drive means comprising a hydraulic motor mounted coaxially with said drum and said worm, said hydraulic motor being connected to said main drive motor and rotated thereby and coupling said main drive motor to said drum, said hydraulic motor having a casing rigidly connected to said drum and a shaft rigidly connected to said worm so that said hydraulic motor casing rotates at the same speed as said drum and said wonn rotates at a speed different from the speed of said drum by the speed differential between said casing and said shaft, and rotary transmission means engaging said casing for supplying a hydraulic drive medium to said hydraulic motor.
  • a decanting centrifuge as set forth in claim 1, including a fixed machine casing enclosing said drum, and said rotary transmission means comprises a hydrostatic transfer seal disposed between said hydraulic motor casing and said fixed machine casing.
  • a decanting centrifuge as set forth in claim 1, wherein said rotary transmission means comprises an adjustable displacement pump for supplying said hydraulic motor with a hydraulic drive medium.
  • a decanting centrifuge as set forth in claim 3, wherein said rotary transmission means comprises means mounted about said hydraulic motor that drives said hydraulic motor in response to the drive medium, a hydraulic medium supply pipe connecting said pump with said means mounted about said hydraulic motor, a branch line connecting said supply pipe with said main motor, and a flow regulating valve mounted in said branch line.
  • a decanting centrifuge as set forth in claim 2, 6.

Landscapes

  • Centrifugal Separators (AREA)
US489490A 1973-07-21 1974-07-18 Decanting centrifuge Expired - Lifetime US3923241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1069073A CH566817A5 (enrdf_load_stackoverflow) 1973-07-21 1973-07-21

Publications (1)

Publication Number Publication Date
US3923241A true US3923241A (en) 1975-12-02

Family

ID=4365802

Family Applications (1)

Application Number Title Priority Date Filing Date
US489490A Expired - Lifetime US3923241A (en) 1973-07-21 1974-07-18 Decanting centrifuge

Country Status (4)

Country Link
US (1) US3923241A (enrdf_load_stackoverflow)
CH (1) CH566817A5 (enrdf_load_stackoverflow)
DE (2) DE7422923U (enrdf_load_stackoverflow)
FR (1) FR2237682B1 (enrdf_load_stackoverflow)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4073431A (en) * 1975-11-18 1978-02-14 Flottweg-Werk Dr. Georg Bruckmayer Gmbh & Co. Kg Solid jacket worm centrifuge with rpm differential variable coupling between jacket part and worm part
US4085888A (en) * 1975-11-18 1978-04-25 Flottweg-Werk Dr. Georg Bruckmayer Gmbh & Co. Kg Process and apparatus for the treatment of suspensions
US4113171A (en) * 1976-04-14 1978-09-12 Cyphelly Ivan J Valve arrangement for limiting torque of a hydraulic motor of a centrifuge
US4120447A (en) * 1975-10-23 1978-10-17 Flottweg-Werk Dr. Georg Bruckmayer Gmbh & Co. Kg Pressure-tight solid bowl screw centrifuge
US4129249A (en) * 1977-08-17 1978-12-12 Baker Perkins Inc. Centrifuge for separating solids and liquids
US4141488A (en) * 1977-08-18 1979-02-27 Koninklijke Nederlandse Papierfabrieken N.W. Centrifuge
US4228949A (en) * 1977-10-04 1980-10-21 Thomas Broadbent & Sons Limited Solid bowl scroll discharge decanter centrifuges
US4298162A (en) * 1979-02-23 1981-11-03 Alfa-Laval Separation A/S Decanter centrifuge
US4303192A (en) * 1979-07-05 1981-12-01 Hide Katsume Full jacket-worm centrifuge
US4305546A (en) * 1980-07-01 1981-12-15 Beckman Instruments, Inc. Large diameter air driven centrifuge rotor
US4411646A (en) * 1980-05-16 1983-10-25 Cyphelly Ivan J Decanter centrifuge having differential drive unit
AU632346B2 (en) * 1989-07-21 1992-12-24 Elatronic Ag. Drive for a decanter centrifuge
US5342279A (en) * 1992-08-18 1994-08-30 Alfa Laval Separation Inc. Decanter centrifuge having dual motor drive
US5344570A (en) * 1993-01-14 1994-09-06 James E. McLachlan Method and apparatus for removing solids from a liquid
US6387032B1 (en) * 1998-02-17 2002-05-14 Westfalia Separator Ag Screw-type solid bowl centrifuge with multistage planetary gear train
US6589154B2 (en) 2001-05-30 2003-07-08 Alfa Laval Inc. Decanter centrifuge with a gear box mounted on the bowl
US20040138040A1 (en) * 2003-01-15 2004-07-15 Hensley Gary L. Decanter centrifuge control
US20040232791A1 (en) * 2003-05-19 2004-11-25 Luc Gilbert System for driving a rotatable machine
US20070203009A1 (en) * 2003-04-22 2007-08-30 Cunningham Sinclair U Centrifuge Comprising Hydraulic Differential Speed Determination
US20110034313A1 (en) * 2009-08-06 2011-02-10 Andritz Separation Inc. Centrifuge with hydraulic drive unit
CN102814244A (zh) * 2012-07-31 2012-12-12 天圣环保工程（成都）有限公司 一种全液压驱动差速卧螺离心机
US8808154B2 (en) * 2010-09-13 2014-08-19 Hiller Gmbh Drive apparatus in a scroll centrifuge having a gearbox with a housing nonrotatably connected to a drive shaft
CN104084317A (zh) * 2013-08-15 2014-10-08 飞翼股份有限公司 一种煤矿井下专用固液分离机
CN106369013A (zh) * 2016-11-16 2017-02-01 上海市离心机械研究所有限公司 一种卧螺离心机液压马达动态测试装置及其使用方法
US20200113221A1 (en) * 2017-06-30 2020-04-16 Koninklijke Philips N.V. A juicing apparatus and juicing method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2525280C2 (de) * 1975-06-06 1983-06-23 Flottweg-Werk Dr. Georg Bruckmayer GmbH & Co. KG, 8313 Vilsbiburg Vollmantel-Schneckenzentrifuge mit gegenüber ihrem Mantelteil mit Differenzdrehzahl umlaufendem Schneckenteil
CA1114343A (en) * 1978-10-23 1981-12-15 Henry J. Ephithite Centrifuge
DE3005658A1 (de) * 1980-02-15 1981-10-01 Klöckner-Humboldt-Deutz AG, 5000 Köln Verfahren und anlage zum regeln der differenzdrehzahl zweier mit unterschiedlicher drehzahl rotierender bauteile, insbesondere von zentrifugentrommel und foerderschnecke einer schneckenzentrifuge
FR2897278B1 (fr) * 2006-02-10 2009-03-06 Oilsep Services France Sarl Procede et dispositif de traitement d'un "slurry" de craqueur catalytique en vue de l'amelioration de sa valorisation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126337A (en) * 1964-03-24 System for separating and classifying solids
US3734399A (en) * 1971-05-28 1973-05-22 Beloit Corp Differential scroll drive

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126337A (en) * 1964-03-24 System for separating and classifying solids
US3734399A (en) * 1971-05-28 1973-05-22 Beloit Corp Differential scroll drive

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120447A (en) * 1975-10-23 1978-10-17 Flottweg-Werk Dr. Georg Bruckmayer Gmbh & Co. Kg Pressure-tight solid bowl screw centrifuge
US4073431A (en) * 1975-11-18 1978-02-14 Flottweg-Werk Dr. Georg Bruckmayer Gmbh & Co. Kg Solid jacket worm centrifuge with rpm differential variable coupling between jacket part and worm part
US4085888A (en) * 1975-11-18 1978-04-25 Flottweg-Werk Dr. Georg Bruckmayer Gmbh & Co. Kg Process and apparatus for the treatment of suspensions
US4113171A (en) * 1976-04-14 1978-09-12 Cyphelly Ivan J Valve arrangement for limiting torque of a hydraulic motor of a centrifuge
US4129249A (en) * 1977-08-17 1978-12-12 Baker Perkins Inc. Centrifuge for separating solids and liquids
US4141488A (en) * 1977-08-18 1979-02-27 Koninklijke Nederlandse Papierfabrieken N.W. Centrifuge
US4228949A (en) * 1977-10-04 1980-10-21 Thomas Broadbent & Sons Limited Solid bowl scroll discharge decanter centrifuges
US4298162A (en) * 1979-02-23 1981-11-03 Alfa-Laval Separation A/S Decanter centrifuge
DK153058B (da) * 1979-02-23 1988-06-13 Alfa Laval Separation As Decantercentrifuge med et mekanisk reduktionsgear mellem centrifugens tromle og transportsnegl
US4303192A (en) * 1979-07-05 1981-12-01 Hide Katsume Full jacket-worm centrifuge
US4411646A (en) * 1980-05-16 1983-10-25 Cyphelly Ivan J Decanter centrifuge having differential drive unit
US4305546A (en) * 1980-07-01 1981-12-15 Beckman Instruments, Inc. Large diameter air driven centrifuge rotor
AU632346B2 (en) * 1989-07-21 1992-12-24 Elatronic Ag. Drive for a decanter centrifuge
US5342279A (en) * 1992-08-18 1994-08-30 Alfa Laval Separation Inc. Decanter centrifuge having dual motor drive
US5344570A (en) * 1993-01-14 1994-09-06 James E. McLachlan Method and apparatus for removing solids from a liquid
US5494584A (en) * 1993-01-14 1996-02-27 James E. McLachlan Method and apparatus for controlling a pump upstream of a centrifuge
US6387032B1 (en) * 1998-02-17 2002-05-14 Westfalia Separator Ag Screw-type solid bowl centrifuge with multistage planetary gear train
US6589154B2 (en) 2001-05-30 2003-07-08 Alfa Laval Inc. Decanter centrifuge with a gear box mounted on the bowl
US20040138040A1 (en) * 2003-01-15 2004-07-15 Hensley Gary L. Decanter centrifuge control
US20070203009A1 (en) * 2003-04-22 2007-08-30 Cunningham Sinclair U Centrifuge Comprising Hydraulic Differential Speed Determination
US7431684B2 (en) * 2003-04-22 2008-10-07 Viscotherm Ag Centrifuge comprising hydraulic differential speed determination
US20040232791A1 (en) * 2003-05-19 2004-11-25 Luc Gilbert System for driving a rotatable machine
US7041044B2 (en) * 2003-05-19 2006-05-09 Andritz-Guinard S.A.S. Rotatable machine or centrifuge with driving motors in a simple casing
US20110034313A1 (en) * 2009-08-06 2011-02-10 Andritz Separation Inc. Centrifuge with hydraulic drive unit
US8808154B2 (en) * 2010-09-13 2014-08-19 Hiller Gmbh Drive apparatus in a scroll centrifuge having a gearbox with a housing nonrotatably connected to a drive shaft
CN102814244A (zh) * 2012-07-31 2012-12-12 天圣环保工程（成都）有限公司 一种全液压驱动差速卧螺离心机
CN104084317A (zh) * 2013-08-15 2014-10-08 飞翼股份有限公司 一种煤矿井下专用固液分离机
CN106369013A (zh) * 2016-11-16 2017-02-01 上海市离心机械研究所有限公司 一种卧螺离心机液压马达动态测试装置及其使用方法
CN106369013B (zh) * 2016-11-16 2018-04-10 上海市离心机械研究所有限公司 一种卧螺离心机液压马达动态测试装置及其使用方法
US20200113221A1 (en) * 2017-06-30 2020-04-16 Koninklijke Philips N.V. A juicing apparatus and juicing method
US12022855B2 (en) * 2017-06-30 2024-07-02 Koninklijke Philips N.V. Juicing apparatus and juicing method

Also Published As

Publication number Publication date
DE7422923U (de) 1977-11-03
DE2432284A1 (de) 1975-02-06
CH566817A5 (enrdf_load_stackoverflow) 1975-09-30
FR2237682A1 (enrdf_load_stackoverflow) 1975-02-14
FR2237682B1 (enrdf_load_stackoverflow) 1978-03-24

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Legal Events

Date Code Title Description
AS Assignment

Owner name: GLYCO-ANTRIEBSTECHNIK GMBH, STIELSTRASSE 18, D-62

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CYPHELLY, IVAN J.;REEL/FRAME:004224/0085

Effective date: 19840124