GB1190179A - Centrifuge Construction - Google Patents

Centrifuge Construction

Info

Publication number
GB1190179A
GB1190179A GB56985/68A GB5698568A GB1190179A GB 1190179 A GB1190179 A GB 1190179A GB 56985/68 A GB56985/68 A GB 56985/68A GB 5698568 A GB5698568 A GB 5698568A GB 1190179 A GB1190179 A GB 1190179A
Authority
GB
United Kingdom
Prior art keywords
feed
apertures
chamber
solids
centrifuge
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
GB56985/68A
Inventor
Robert Joseph Finkelston
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.)
Pennwalt Corp
Original Assignee
Pennsalt Chemical Corp
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 Pennsalt Chemical Corp filed Critical Pennsalt Chemical Corp
Publication of GB1190179A publication Critical patent/GB1190179A/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

1,190,179. Centrifugal separators. PENNSALT CHEMICALS CORP. 2 Dec., 1968 [21 Dec., 1967], No. 56985/68. Heading B2P. In a centrifuge for separating solids from liquid and having a screw conveyor for discharging the solids through ports in the centrifuge bowl and a feed tube 36 for delivering feed material to a feed chamber 38 within the conveyor hub 40 where the feeed material is directed by an accelerator plate 52 towards one or more apertures in the hub leading outwardly into the separating chamber 46 in the centrifuge bowl, the solids are prevented from accumulating in the feed chamber 38 by means of a baffle plate 74 which is disposed in the chamber 38 to deflect the feed material through the apertures 72, thereby avoiding erosion or twisting of the feed tube by the accumulated solids. The chamber 38 is provided with a stainless steel liner 70. The apertures 74 are helically arranged between the flights 42, 44 of the conveyor. The baffle plate 74 is inclined to the conveyor axis and is provided at its inner periphery with a flanged annular member 78 which cooperates with a stationary flanged annular member 76 on the feed tube 36 to deflect inwardly flowing feed material towards the aperture 72, the baffle plate 74 may be flat, curved or of single conic section or may have a helical periphery. The accelerator plate 52 is fitted centrally with a radial vane assembly 56 which cooperates with guide members 58 on the plate to impart radial and tangential velocity to feed material as it discharges from the feed pipe 36. The feed chamber 38 is separated by means of a partition 48 and a seal 62 from an annular space 64 which may serve as a rinse chamber into which washing liquid may be introduced via a tube 66 and flows, with aid of accelerator vanes 65, through at least one radial passeway (shown closed by a plug 68) into a solids-discharging frusto-conical portion of the separating chamber. In a modification, Fig. 3 (not shown), the apertures (72) in the hub are fitted with wear sleeves (84) projecting inwardly and outwardly of the apertures. The flange (77) on the annular member (76) is made of elastomeric material to facilitate its insertion with the feed pipe through the seal (62). In a further modification, Fig. 4 (not shown), the screw conveyor is provided with a double-helical screw flight and the apertures (72), (72') are arranged in a double helix. The baffle plate is made of two parts oppositely inclined relative to the centrifuge axis, each serving to deflect feed material through a different one of the two series of apertures. The centrifuge may be vertically mounted and the bowl may be wholly frusto-conical or partly cylindrical and partly frusto-conical.
GB56985/68A 1967-12-21 1968-12-02 Centrifuge Construction Expired GB1190179A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US69259067A 1967-12-21 1967-12-21

Publications (1)

Publication Number Publication Date
GB1190179A true GB1190179A (en) 1970-04-29

Family

ID=24781205

Family Applications (1)

Application Number Title Priority Date Filing Date
GB56985/68A Expired GB1190179A (en) 1967-12-21 1968-12-02 Centrifuge Construction

Country Status (4)

Country Link
US (1) US3428246A (en)
DE (1) DE1815199A1 (en)
FR (1) FR1596076A (en)
GB (1) GB1190179A (en)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK118068B (en) * 1968-01-10 1970-06-29 Titan Separator As Centrifuge.
US3854658A (en) * 1973-05-07 1974-12-17 Dorr Oliver Inc Solid bowl conveyer type centrifuge
US4245777A (en) * 1979-08-30 1981-01-20 Pennwalt Corporation Centrifuge apparatus
US4334647A (en) * 1980-12-03 1982-06-15 Bird Machine Company, Inc. Centrifuges
US4761157A (en) * 1983-05-18 1988-08-02 Pennwalt Corporation Centrifuge apparatus
DK166996B1 (en) * 1988-06-21 1993-08-16 Alfa Laval Separation As decanter centrifuge
US5374234A (en) * 1990-03-13 1994-12-20 Alfa-Laval Separation A/S Decanter centrifuge with energy dissipating inlet
DK170967B1 (en) * 1990-03-13 1996-04-09 Alfa Laval Separation As decanter centrifuge
DE4041868C2 (en) * 1990-12-27 1998-07-30 Deutz Ag centrifuge
US5380266A (en) * 1991-11-27 1995-01-10 Baker Hughes Incorporated Feed accelerator system including accelerator cone
AU3228693A (en) * 1991-11-27 1993-06-28 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
AU3324793A (en) * 1991-12-31 1993-07-28 Baker Hughes Incorporated Feed accelerator system including accelerating vane apparatus
US6780147B2 (en) * 2000-08-31 2004-08-24 Varco I/P, Inc. Centrifuge with open conveyor having an accelerating impeller and flow enhancer
US7018326B2 (en) * 2000-08-31 2006-03-28 Varco I/P, Inc. Centrifuge with impellers and beach feed
US6790169B2 (en) * 2000-08-31 2004-09-14 Varco I/P, Inc. Centrifuge with feed tube adapter
US6561965B1 (en) 2000-10-20 2003-05-13 Alfa Laval Inc. Mist pump for a decanter centrifuge feed chamber
US7060019B2 (en) * 2000-11-14 2006-06-13 Westfalia Separator Ag Solid bowl screw centrifuge comprising a distributor
DK175539B1 (en) * 2002-03-14 2004-11-29 Alfa Laval Copenhagen As Decanter centrifuge with wear reinforcement in inlet
US20050245381A1 (en) * 2004-04-30 2005-11-03 National-Oilwell, L.P. Centrifuge accelerator system
CA2505236C (en) * 2005-04-25 2007-11-20 Edward Carl Lantz Centrifuge with shaping of feed chamber to reduce wear
DE102005025784A1 (en) * 2005-06-04 2006-12-07 Hiller Gmbh screw centrifuge
DK200970026A (en) 2009-06-12 2010-12-13 Alfa Laval Corp Ab A centrifugal separator
DK201070592A (en) 2010-12-30 2012-07-01 Alfa Laval Corp Ab A centrifugal separator having an inlet with wear resistance members, and a feed zone element with wear resistance members, and a feed zone element with wear resistance members
EP2767344B1 (en) * 2013-02-15 2015-07-29 Alfa Laval Corporate AB Smoothly accelerating channel inlet for centrifugal separator
ES2785387T3 (en) * 2015-06-19 2020-10-06 Andritz Sas Decanter centrifuge
US11471896B2 (en) * 2019-01-08 2022-10-18 2460257 Ontario Inc. Feed box for decanter centrifuge
WO2020194169A1 (en) 2019-03-22 2020-10-01 Flsmidth A/S Centrifugal separator and screen having blades for same
DE102020129483B3 (en) * 2020-11-09 2022-05-25 Flottweg Se Centrifuge scroll and solid bowl scroll centrifuge
DE102020129481B8 (en) * 2020-11-09 2023-12-07 Flottweg Se Screw hub, centrifuge screw and solid bowl screw centrifuge
DE102021127079A1 (en) 2021-10-19 2023-04-20 Dana Huschert Lifestyle Gmbh napkin holder
DE202021105695U1 (en) 2021-10-19 2022-02-01 Dana Huschert Lifestyle Gmbh napkin holder

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600372A (en) * 1949-12-16 1952-06-10 Bird Machine Co Centrifugal separator
NL6406054A (en) * 1963-07-25 1965-01-26
US3228592A (en) * 1963-11-18 1966-01-11 Pennsalt Chemicals Corp Non-spilling feed means for vertical centrifuge
US3228594A (en) * 1965-02-05 1966-01-11 Clifford L Amero Centrifugal separator
US3348767A (en) * 1965-04-19 1967-10-24 Bird Machine Co Centrifugal separator

Also Published As

Publication number Publication date
US3428246A (en) 1969-02-18
DE1815199A1 (en) 1969-07-24
FR1596076A (en) 1970-06-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee