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GB1238821A - - Google Patents

Info

Publication number
GB1238821A
GB1238821A GB1238821DA GB1238821A GB 1238821 A GB1238821 A GB 1238821A GB 1238821D A GB1238821D A GB 1238821DA GB 1238821 A GB1238821 A GB 1238821A
Authority
GB
United Kingdom
Prior art keywords
slurry
tubular body
openings
conveyor
rotation
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
Application number
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 filed Critical
Publication of GB1238821A publication Critical patent/GB1238821A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B04B2001/2033—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 with feed accelerator inside the conveying screw

Landscapes

  • Centrifugal Separators (AREA)

Abstract

1,238,821. Centrifugal separator. COMBUSTION, ENG. Inc. 16 March, 1970 [17 March, 1969], No. 12574/70. Heading B2P. A centrifuge for separating a slurry into its solid and liquid constituents comprises a rotary bowl 15, a coaxial rotary conveyor 22 for moving the separated solids along the bowl towards a discharge opening 19, and a slurry feed pipe 13 having an outlet 14 within the tubular body 24 of the conveyor, the body 24 having circumferentially spaced openings 27, in the region thereof which rotates about the feed pipe outlet 14 in operation, for the passage of slurry through the body of the bowl interior, each of the openings 27 having a straight trailing (with respect to the direction of rotation of the body) edge extending parallel to the conveyor axis. As shown, the openings 27 are rectangular. An orifice member in the form of a rectangular apertured plate 28 made of alumina is fastened, with the interposition of a rubber sealing gasket 33, to the inside of the tubular body 24 at the location of each of the openings 27 to form a dam whereby, in operation, a pool of slurry is formed at the leading (with respect to the direction of rotation of the tubular body) side of the dam or the inside surface of the tubular body and rotates therewith. The slurry when fed meets the rotating pool rather than the inside surface of the tubular body thereby avoiding excessive erosion of the latter. The rotating pool also serves to accelerate the slurry towards the speed of rotation of the tubular body before discharge of the slurry through the openings. Each orifice member 28 preferably overhangs its associated opening at the trailing edge thereof so that essentially all wear occurs on the member itself instead of on the conveyor body 24. (For Figures see next page)
GB1238821D 1969-03-17 1970-03-16 Expired GB1238821A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80775069A 1969-03-17 1969-03-17

Publications (1)

Publication Number Publication Date
GB1238821A true GB1238821A (en) 1971-07-14

Family

ID=25197093

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1238821D Expired GB1238821A (en) 1969-03-17 1970-03-16

Country Status (2)

Country Link
US (1) US3620442A (en)
GB (1) GB1238821A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3106230A1 (en) * 2015-06-19 2016-12-21 Andritz S.A.S. Decanter centrifuge

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2130633C3 (en) * 1971-06-21 1982-09-23 Flottweg-Werk Dr. Georg Bruckmayer GmbH & Co. KG, 8313 Vilsbiburg Solid bowl screw centrifuge
US5380266A (en) * 1991-11-27 1995-01-10 Baker Hughes Incorporated Feed accelerator system including accelerator cone
WO1993010905A1 (en) * 1991-11-27 1993-06-10 Baker Hughes Incorporated Feed accelerator system including feed slurry accelerating nozzle apparatus
US5403486A (en) * 1991-12-31 1995-04-04 Baker Hughes Incorporated Accelerator system in a centrifuge
US6780147B2 (en) * 2000-08-31 2004-08-24 Varco I/P, Inc. Centrifuge with open conveyor having an accelerating impeller and flow enhancer
US6790169B2 (en) * 2000-08-31 2004-09-14 Varco I/P, Inc. Centrifuge with feed tube adapter
US7018326B2 (en) 2000-08-31 2006-03-28 Varco I/P, Inc. Centrifuge with impellers and beach feed
US11772104B2 (en) * 2020-06-22 2023-10-03 National Oilwell Varco, L.P. Decanter centrifuge nozzle

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3368747A (en) * 1965-10-20 1968-02-13 Pennsalt Chemicals Corp Centrifuge
NO120465B (en) * 1965-10-21 1970-10-19 Alfa Laval Ab
US3428248A (en) * 1967-09-26 1969-02-18 Combustion Eng Continuous centrifuge apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3106230A1 (en) * 2015-06-19 2016-12-21 Andritz S.A.S. Decanter centrifuge
RU2664147C1 (en) * 2015-06-19 2018-08-15 Андриц С.А.С. Decanter centrifuge and decanter centrifuge inserting chamber

Also Published As

Publication number Publication date
US3620442A (en) 1971-11-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees