EP0391043A2 - Centrifugeuse pour la séparation continue de matières de densités différentes - Google Patents

Centrifugeuse pour la séparation continue de matières de densités différentes Download PDF

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Publication number
EP0391043A2
EP0391043A2 EP90102760A EP90102760A EP0391043A2 EP 0391043 A2 EP0391043 A2 EP 0391043A2 EP 90102760 A EP90102760 A EP 90102760A EP 90102760 A EP90102760 A EP 90102760A EP 0391043 A2 EP0391043 A2 EP 0391043A2
Authority
EP
European Patent Office
Prior art keywords
centrifuge
drum
centrifuge drum
adjusting device
adjusting
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.)
Ceased
Application number
EP90102760A
Other languages
German (de)
English (en)
Other versions
EP0391043A3 (fr
Inventor
Reinhold Dr. Schilp
Wolfgang Epper
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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
Application filed by Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of EP0391043A2 publication Critical patent/EP0391043A2/fr
Publication of EP0391043A3 publication Critical patent/EP0391043A3/fr
Ceased 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
    • 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
    • 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
    • B04B2001/2083—Configuration of liquid outlets

Definitions

  • the invention relates to a centrifuge for the continuous separation of substances of different densities, in particular for the separation of solid-liquid mixtures, with an essentially cylindrical drum shell and with nozzles arranged in the thick matter discharge area, through the openings of which the thick matter is discharged, with opening and closing the nozzle openings, adjusting members are provided which interact with an adjusting device arranged outside the centrifuge drum.
  • This known device for opening and closing the nozzles is not only relatively complicated in terms of its construction, but also a repair, in particular the replacement of worn setting elements for new ones, is associated with a relatively high amount of work, time and cost, since this is the centrifuge not only shut down, but also the centrifuge drum in the thick matter discharge area must be opened.
  • the supply of the pressure fluid brings to the adjusting members arranged inside the centrifuge drum, in particular in the Area of the rotary union, sealing problems with it, which are difficult to master.
  • the object of the invention is to considerably simplify the removal of thick matter from the centrifuge, regardless of the speed of the screw conveyor and / or the differential speed between the screw conveyor and the centrifuge drum, while avoiding the disadvantages described above.
  • the setting members for opening and closing the nozzle openings are arranged on the outside of the centrifuge drum and are operatively connected to the adjusting device via mechanical connecting elements.
  • the fact that the adjusting elements for opening and closing the nozzle openings on the outside of the centrifuge drum are not only considerably easier to maintain and check the function of the adjusting elements, but it is also considerably easier to replace worn adjusting elements with new ones, since the centrifuge drum is not removed and must be opened.
  • the setting members are not operatively connected to the adjusting device via mechanical connecting elements.
  • the adjusting member consists of an annular disk which is axially displaceably arranged on the drive shaft of the centrifuge drum and which rotates with the centrifuge drum and which is in operative connection with a displacing device arranged on the bearing housing of the centrifuge.
  • This adjusting member which is axially displaceably arranged on the drive shaft of the centrifuge drum, is particularly characterized by its simple design and high operational reliability.
  • the centrifuge drum (1) of the solid-bowl screw centrifuge in the thick matter discharge area (2) is provided with an annular disc (4) which can be axially displaced on the drive shaft (3) of the centrifuge drum and which, during operation of the centrifuge, is equipped with the centrifuge drum ( 1) rotates.
  • the annular disc (4) is operatively connected via a sliding bearing (5) to an adjusting device (6) which is arranged on the bearing housing (7), in which the drive shaft (3) of the centrifuge drum (1) and in it the screw conveyor (8 ) is rotatably mounted.
  • the adjusting device (6) can be designed as a double-acting hydraulic piston-cylinder unit, the piston rod (9) of which is connected at the outer end to a plate-shaped member (10) which engages the outer bearing ring of the sliding bearing (5).
  • the adjusting device (6) can, however, also very advantageously be designed as an electric motor with a screw spindle arranged on the rotor, which engages in a corresponding adjusting thread in the link (10) - for the purpose of axially adjusting the annular disc (4) (arrow 11).
  • the outer edge (12) of the The annular disc (4) forms with the end wall (13) of the centrifuge drum (1) an annular gap (14) through which the thick material (15) separated from the liquid in the centrifuge drum during operation exits in the direction of the arrow (16).
  • the annular gap (14) can be adjusted continuously with the help of the washer (4), which serves as an adjusting element for opening and closing the annular nozzle openings, by axially shifting its width into the position (17) shown in dashed lines in FIG. 2.
  • the axially displaceable annular disc (4) for controlling the exit annular gap (14) for the thick matter (15) can be kept regulated in a certain gap width position as required, or can be opened or closed continuously via a time pulse control.
  • the adjusting member shown in Fig. 3 consists of one or more bolts (18) with a beveled end face (19) which the opening (20) in the end wall (21) arranged Releases or closes nozzles (22) for the discharge of the thick matter (23) from the centrifuge drum (24).
  • the bolt (18) which serves as an adjusting and closing member, is detachably connected to an annular arm (25) which, as a mechanical connecting element with the adjusting device on the drive shaft of the centrifuge drum, is axially adjustable (arrow 26) and radially arranged.
  • the adjusting device to which the ring arm (25) carrying the bolt (18) is connected corresponds to the adjusting device (5, 6, 9, 10) shown in FIG. 1 and was therefore not shown in detail in FIG. 3.
  • the adjusting member (27) which is also releasably connected to an arm (28) which is axially adjustable on the drive shaft of the centrifuge drum and is detachably connected radially outwards, is conical.
  • the opening (31) of the nozzle (32) arranged in the end wall (29) of the centrifuge drum (30) is also opened and closed in the same way as in the thick matter discharge device shown in FIG. 3.
  • the nozzles (33) in the drum jacket (34) are arranged distributed uniformly over the circumference and are designed to be plate-shaped for opening and closing the nozzle openings (35) te adjusting members (36) are provided which are fastened in a ring (37) surrounding the drum.
  • Push rods (38) engage on the ring (37), which in turn are firmly connected to arms (39) which are axially adjustable on the drive shaft of the centrifuge drum (34) and extend radially outwards.
  • the setting members designed according to the invention and which are operatively connected to the adjusting device very advantageously enable an accurate, optimal and stepless setting of the thick material discharge openings depending on the concentration of the thick material thickened in the centrifuge.
EP19900102760 1989-04-07 1990-02-13 Centrifugeuse pour la séparation continue de matières de densités différentes Ceased EP0391043A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3911320 1989-04-07
DE3911320A DE3911320A1 (de) 1989-04-07 1989-04-07 Zentrifuge zum kontinuierlichen trennen von stoffen unterschiedlicher dichte

Publications (2)

Publication Number Publication Date
EP0391043A2 true EP0391043A2 (fr) 1990-10-10
EP0391043A3 EP0391043A3 (fr) 1991-04-10

Family

ID=6378101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900102760 Ceased EP0391043A3 (fr) 1989-04-07 1990-02-13 Centrifugeuse pour la séparation continue de matières de densités différentes

Country Status (3)

Country Link
US (1) US5169377A (fr)
EP (1) EP0391043A3 (fr)
DE (1) DE3911320A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217428A (en) * 1989-06-29 1993-06-08 Kloeckner-Humboldt-Deutz Aktiengesellschaft Weir for setting the liquid level in solid bowl centrifuges
WO1995000249A1 (fr) * 1993-06-18 1995-01-05 Westfalia Separator Aktiengesellschaft Deversoir de paniers centrifuges a bol plein

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4112957A1 (de) * 1991-04-20 1992-10-22 Kloeckner Humboldt Deutz Ag Vollmantel-schneckenzentrifuge
US5261869A (en) * 1992-04-06 1993-11-16 Alfa Laval Separation, Inc. Decanter centrifuge having discontinuous flights in the beach area
US5643169A (en) * 1995-06-06 1997-07-01 Baker Hughes Incorporated Decanter centrifuge with adjustable gate control
US5695442A (en) * 1995-06-06 1997-12-09 Baker Hughes Incorporated Decanter centrifuge and associated method for producing cake with reduced moisture content and high throughput
US5653674A (en) * 1996-03-27 1997-08-05 Baker Hughes Incorporated Decanter centrifuge with discharge opening adjustment control and associated method of operating
JP4153138B2 (ja) * 2000-02-10 2008-09-17 株式会社クボタ 遠心分離装置
DE10203652B4 (de) * 2002-01-30 2006-10-19 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit einem Wehr
DE10261520A1 (de) * 2002-12-23 2004-07-08 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit einstellbarem Feststoffaustrag
DE102006030477A1 (de) * 2006-03-30 2007-10-04 Westfalia Separator Ag Vollmantel-Schneckenzentrifuge mit Abflußöffnungen zur Teil- und Restentleerung der Trommel
US7908764B1 (en) 2008-05-05 2011-03-22 Decanter Machines, Inc. Hyperbaric centrifuge system
US8579783B2 (en) * 2009-07-02 2013-11-12 Andritz S.A.S. Weir and choke plate for solid bowl centrifuge
DK2918345T3 (da) * 2014-03-14 2020-03-16 Andritz Sas Dekantercentrifuge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2008778A1 (fr) * 1968-05-17 1970-01-23 Garbaty Rudolf
JPS56152754A (en) * 1980-04-25 1981-11-26 Kobe Steel Ltd Decanter type centrifugal separator
JPS57194061A (en) * 1981-05-26 1982-11-29 Kobe Steel Ltd Centrifugal concentrating device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092338A (en) * 1959-04-16 1963-06-04 Defibrator Ab Pulp refining apparatus
US3233535A (en) * 1962-12-27 1966-02-08 Havajava Mfg Company Centrifugal coffee brewer
SE315569B (fr) * 1967-11-10 1969-10-06 T Glowacki
SE371110B (fr) * 1973-03-22 1974-11-11 Alfa Laval Ab
DE2333122C2 (de) * 1973-06-29 1985-08-01 Salzgitter Maschinen Und Anlagen Ag, 3320 Salzgitter Vorrichtung zur Betätigung eines Verschlußkörpers einer Zentrifuge
CH591286A5 (fr) * 1975-04-22 1977-09-15 Escher Wyss Ag
ZA781002B (en) * 1977-03-03 1979-09-26 Joy Mfg Co Centrifuge apparatus
US4468215A (en) * 1981-06-19 1984-08-28 Otto Wimmer Centrifuge
SE8405015D0 (sv) * 1984-10-08 1984-10-08 Alfa Laval Separation Ab Centrifugalseparator
ATE66392T1 (de) * 1985-09-16 1991-09-15 Mueller Drm Ag Klaer-filter-zentrifuge und verfahren zum trennen von suspensionen.
DE3608664A1 (de) * 1986-03-14 1987-09-17 Krauss Maffei Ag Vollmantelzentrifuge
DE3620912A1 (de) * 1986-06-21 1987-12-23 Kloeckner Humboldt Deutz Ag Zentrifuge zum kontinuierlichen trennen von stoffen unterschiedlicher dichte
DE3822983A1 (de) * 1988-07-07 1990-01-11 Hiller Gmbh Vollmantel-schneckenzentrifuge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2008778A1 (fr) * 1968-05-17 1970-01-23 Garbaty Rudolf
JPS56152754A (en) * 1980-04-25 1981-11-26 Kobe Steel Ltd Decanter type centrifugal separator
JPS57194061A (en) * 1981-05-26 1982-11-29 Kobe Steel Ltd Centrifugal concentrating device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 35 (C-93)(913) 03 März 1982, & JP-A-56 152754 (KOBE SEIKOSHO K.K.) 26 November 1981, *
PATENT ABSTRACTS OF JAPAN vol. 7, no. 43 (C-152)(1188) 19 Februar 1983, & JP-A-57 194061 (KOBE SEIKOSHO K.K.) 29 November 1982, *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217428A (en) * 1989-06-29 1993-06-08 Kloeckner-Humboldt-Deutz Aktiengesellschaft Weir for setting the liquid level in solid bowl centrifuges
GB2233258B (en) * 1989-06-29 1993-10-06 Kloeckner Humboldt Deutz Ag Solid sleeve centrifuge with adjustable liquid outlets
WO1995000249A1 (fr) * 1993-06-18 1995-01-05 Westfalia Separator Aktiengesellschaft Deversoir de paniers centrifuges a bol plein
US5593377A (en) * 1993-06-18 1997-01-14 Westfalia Separator Aktiengesellschaft Weir and choke plate for a solid-jacket centrifuge drum

Also Published As

Publication number Publication date
US5169377A (en) 1992-12-08
EP0391043A3 (fr) 1991-04-10
DE3911320A1 (de) 1990-10-11

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