EP0631820A3 - Process for operating a screw centrifuge. - Google Patents

Process for operating a screw centrifuge. Download PDF

Info

Publication number
EP0631820A3
EP0631820A3 EP94107900A EP94107900A EP0631820A3 EP 0631820 A3 EP0631820 A3 EP 0631820A3 EP 94107900 A EP94107900 A EP 94107900A EP 94107900 A EP94107900 A EP 94107900A EP 0631820 A3 EP0631820 A3 EP 0631820A3
Authority
EP
European Patent Office
Prior art keywords
operating
screw centrifuge
centrifuge
screw
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
EP94107900A
Other languages
German (de)
French (fr)
Other versions
EP0631820A2 (en
EP0631820B1 (en
Inventor
Wolfgang Dipl-Ing Epper
Reinhold Dr-Ing Schilp
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.)
Baker Hughes Deutschland GmbH
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 EP0631820A2 publication Critical patent/EP0631820A2/en
Publication of EP0631820A3 publication Critical patent/EP0631820A3/en
Application granted granted Critical
Publication of EP0631820B1 publication Critical patent/EP0631820B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04BCENTRIFUGES
    • B04B1/00Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
    • B04B1/20Centrifuges 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
    • B04B1/2016Driving control or mechanisms; Arrangement of transmission gearing
EP94107900A 1993-07-01 1994-05-21 Process for operating a screw centrifuge Expired - Lifetime EP0631820B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4321964 1993-07-01
DE4321964A DE4321964A1 (en) 1993-07-01 1993-07-01 Process for operating screw centrifuges

Publications (3)

Publication Number Publication Date
EP0631820A2 EP0631820A2 (en) 1995-01-04
EP0631820A3 true EP0631820A3 (en) 1995-05-31
EP0631820B1 EP0631820B1 (en) 1999-10-27

Family

ID=6491739

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94107900A Expired - Lifetime EP0631820B1 (en) 1993-07-01 1994-05-21 Process for operating a screw centrifuge

Country Status (4)

Country Link
US (1) US5474515A (en)
EP (1) EP0631820B1 (en)
DE (2) DE4321964A1 (en)
DK (1) DK0631820T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4439938A1 (en) 1994-11-09 1996-05-15 Kloeckner Humboldt Deutz Ag Process for operating screw centrifuges
DE19952804C2 (en) * 1999-11-02 2003-07-03 Westfalia Separator Ind Gmbh Solid bowl screw centrifuge for processing a centrifugal material that tends to foam
DE10220757B4 (en) * 2002-05-08 2004-06-24 Westfalia Separator Ag Centrifuge, especially separator
DE10223802B4 (en) * 2002-05-29 2005-06-09 Westfalia Separator Ag Solid bowl centrifuge
US6972411B2 (en) * 2002-10-03 2005-12-06 Schick Technologies, Inc. Method of event detection for intraoral image sensor
KR100920449B1 (en) 2007-10-04 2009-10-08 이강찬 Centrifugal separator

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2551788A1 (en) * 1975-11-18 1977-06-02 Flottweg Werk Bruckmayer FULLY-SLEEVED SCREW CENTRIFUGE WITH DIFFERENTIAL SPEED-VARIABLE COUPLING BETWEEN SHEATH PART AND SCREW PART
US4978331A (en) * 1989-07-11 1990-12-18 Alfa-Laval Ab Method and apparatus for cleaning in place of a decanter centrifuge

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1632325B1 (en) * 1967-06-02 1970-05-27 Turbo Separator Ag Continuously working, screenless screw centrifuge
US3494542A (en) * 1968-05-27 1970-02-10 Pennwalt Corp Centrifuging process and apparatus
DE2063063C3 (en) * 1970-12-22 1975-10-16 Amberger Kaolinwerke Gmbh, 8452 Hirschau Process for separating the solids from a suspension, as well as for promoting the internal transport and discharge of the thickened sludge in solid bowl centrifuges, as well as centrifuges serving to carry out the process
DE2125522A1 (en) * 1971-05-22 1972-12-07 Mse Holdings Ltd Centrifugal separator - with by-pass chamber esp for machine tool coolant with swarf
SU582001A1 (en) * 1976-06-23 1977-11-30 Всесоюзный научно-исследовательский и проектный институт галургии Method of automatic control of suspension separating process in screw-type settling centrifuge
DE2835108A1 (en) * 1978-08-10 1980-02-14 Lacher Jorge Halder Releasing compacted sugar crystals from centrifuge screen - using sudden applied braking force to screen (BR 26.9.78)
DE3044797A1 (en) * 1980-11-28 1982-07-01 Fluormatic GmbH, 7407 Rottenburg Removing solids from liq. using two centrifuges - superimposed in common casing and operated independently
US5176616A (en) * 1989-06-29 1993-01-05 Kloeckner-Humboldt-Deutz Aktiengesellschaft Method and apparatus for the after-treatment of the thick material in the thick material discharge region of a solid bowl worm centrifuge
DE4104752A1 (en) * 1990-02-15 1991-08-22 Krauss Maffei Ag Dislodging deepening cake residue from centrifugal filter - by flooding surface before abrupt rotary speed change

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2551788A1 (en) * 1975-11-18 1977-06-02 Flottweg Werk Bruckmayer FULLY-SLEEVED SCREW CENTRIFUGE WITH DIFFERENTIAL SPEED-VARIABLE COUPLING BETWEEN SHEATH PART AND SCREW PART
US4978331A (en) * 1989-07-11 1990-12-18 Alfa-Laval Ab Method and apparatus for cleaning in place of a decanter centrifuge

Also Published As

Publication number Publication date
DE4321964A1 (en) 1995-01-12
EP0631820A2 (en) 1995-01-04
EP0631820B1 (en) 1999-10-27
DK0631820T3 (en) 2000-01-17
DE59408853D1 (en) 1999-12-02
US5474515A (en) 1995-12-12

Similar Documents

Publication Publication Date Title
EP0629427A3 (en) Screw type dewatering machine.
AU6767494A (en) Process for brine disposal
EP0621556A3 (en) A process for combining the results of several classifiers.
ZA938858B (en) A screw clamp.
EP0614724A3 (en) Machine tool.
AU7268194A (en) Improved machine tool
ZA943461B (en) A system for the synchronisation
AU638667B2 (en) Pushout for i.s. machine
EP0640398A3 (en) Centrifuge.
AU6661794A (en) A screw
EP0631820A3 (en) Process for operating a screw centrifuge.
AU7122294A (en) A dual vibration-compensating apparatus
ZA9221B (en) Process for 3-exomethylenecepham sulfoxide esters.
HUT73647A (en) Process for refining cycclodextrin
EP0624689A3 (en) Railgrinding machine.
SG43779A1 (en) Process for producing 1,4-dicyano-2-butene
EP0736508A4 (en) Process for purifying 1,1,1,3,3-pentafluoro-2,3-dichloropropane
AU6841094A (en) Automatic skittle- or pin-resetting machine
AU1198995A (en) Process for generating a flow
EP0610720A3 (en) Festoon-sewing machine.
EP0661164A3 (en) Method for operating a printer.
AUPM419794A0 (en) Scrum machine
EP0649408A4 (en) Process for making phenylthiomethylpyridinylalkenoates.
EP0662651A3 (en) Improved finite state machine for process control.
EP0608040A3 (en) A method for fractionating starch.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE DK FR GB SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE DK FR GB SE

17P Request for examination filed

Effective date: 19950816

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DEUTZ AKTIENGESELLSCHAFT

17Q First examination report despatched

Effective date: 19970610

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BAKER HUGHES (DEUTSCHLAND) GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BAKER HUGHES (DEUTSCHLAND) GMBH

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE DK FR GB SE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19991027

REF Corresponds to:

Ref document number: 59408853

Country of ref document: DE

Date of ref document: 19991202

ET Fr: translation filed
REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020501

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20020502

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20020503

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20020515

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20020520

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030521

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030522

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031202

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030521

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040130

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST