GB1291446A - Centrifuge - Google Patents

Centrifuge

Info

Publication number
GB1291446A
GB1291446A GB50678/69A GB5067869A GB1291446A GB 1291446 A GB1291446 A GB 1291446A GB 50678/69 A GB50678/69 A GB 50678/69A GB 5067869 A GB5067869 A GB 5067869A GB 1291446 A GB1291446 A GB 1291446A
Authority
GB
United Kingdom
Prior art keywords
solids
ring
control liquid
responsive
pressure
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
GB50678/69A
Inventor
Leonard Shapiro
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
Pennwalt 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 Pennwalt Corp filed Critical Pennwalt Corp
Publication of GB1291446A publication Critical patent/GB1291446A/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
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor
    • B04B11/043—Load indication with or without control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B13/00—Control arrangements specially designed for centrifuges; Programme control of centrifuges

Landscapes

  • Centrifugal Separators (AREA)

Abstract

1291446 Centrifugal separators; centrifugal strainers PENNWALT CORP 15 Oct 1969 [28 Oct 1968] 50678/69 Headings B2P and B1D In a centrifuge of the type described in Specification 1,183,858, the means for detecting the level of solids in the centrifuge bowl 22 comprises channel-shaped ring 60 mounted on top of the bowl and provided in its floor with equi-spaced threaded openings in which are secured solids-level sensing tubes 62 which extend outwardly into the bowl to the maximum desired solids level A. Control liquid, which may be water under pressure or clarified liquid from an effluent tank 46 connected to the centrifuge is fed continuously or intermittently to the interior of the ring 60 through a line 66 and via a flow control valve 67 and sensing means 68 responsive to the build up of control liquid in the ring 60 upon obstruction of the outlet openings 63 of the tubes 62 by accumulated solids. The sensing means 68 may be a pressure-responsive switch sensitive to the build up of pressure in the flow of control liquid; a flow-responsive switch sensitive to the decrease in the flow rate of the control liquid; or a velocity-responsive switch responsive to the decrease in the velocity of the control liquid. The switch 68 is electrically connected to the solenoid-operated feed valve 36 and to the drive means 56 for the skimmer 50 and, optionally, to the control valve 67 which would then be solenoidoperated and would be shut and opened at the same time as the valve 36. The build-up of control liquid in the ring 60 may alternatively be sensed by a skimmer tube connected to a pressure-responsive switch similar to the switch 68. Both the pressure-responsive switch and the depth at which the line 66 opens into the ring 60 may be adjustable to vary the depth of solids accumulation before actuation of discharge. Instead of the clarified liquid discharging over the lip 32 at the upper end of the bowl, it may do so through perforations in the wall 57. In this case the skimmer 50 may be omitted and a radially movable knife or peeler may be substituted to discharge the accumulated solids.
GB50678/69A 1968-10-28 1969-10-15 Centrifuge Expired GB1291446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77115668A 1968-10-28 1968-10-28

Publications (1)

Publication Number Publication Date
GB1291446A true GB1291446A (en) 1972-10-04

Family

ID=25090889

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50678/69A Expired GB1291446A (en) 1968-10-28 1969-10-15 Centrifuge

Country Status (4)

Country Link
US (1) US3595470A (en)
DE (1) DE1947669A1 (en)
FR (1) FR2021740A1 (en)
GB (1) GB1291446A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703983A (en) * 1971-01-28 1972-11-28 Laval Separator Co De Method and apparatus for centrifuging fluid mixtures and selectively removing liquid material therefrom
US4761157A (en) * 1983-05-18 1988-08-02 Pennwalt Corporation Centrifuge apparatus
EP0868215B1 (en) * 1995-12-01 2002-01-30 Baker Hughes Incorporated Method and apparatus for controlling and monitoring continuous feed centrifuge
US6572523B2 (en) 2001-04-05 2003-06-03 Fleetguard, Inc. Centrifuge rotation indicator
US8033976B2 (en) * 2003-09-30 2011-10-11 Capitalbio Corporation Apparatus and method for centrifugal separation utilizing a movable collection assembly
DE102006020467A1 (en) * 2006-04-28 2007-10-31 Westfalia Separator Ag Separator for use in industrial application, has stator rigidly connected with machine frame, and rotor, drive spindle, centrifuge barrel and housing forming flexible unit supported at machine frame
WO2011011862A1 (en) * 2009-07-29 2011-02-03 Knelson Patents Inc. Bowl structure for a centrifugal concentrator
US10695774B2 (en) * 2017-11-21 2020-06-30 Richard F Corbus Centrifuge separator for gold mining and recovery

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB610482A (en) * 1945-04-18 1948-10-15 Separator Ab A method of centrifugal separation of sludge-containing liquids
US3011647A (en) * 1957-09-30 1961-12-05 Dorr Oliver Inc Centrifugal separator
NL231529A (en) * 1957-12-28 1900-01-01
NL122277C (en) * 1961-06-13
US3261546A (en) * 1962-10-29 1966-07-19 Pfaudler Permutit Inc Method for clarifying fats and oils

Also Published As

Publication number Publication date
DE1947669A1 (en) 1970-06-25
FR2021740A1 (en) 1970-07-24
US3595470A (en) 1971-07-27

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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