GB1199880A - Improvements in or relating to Sludge Centrifuges - Google Patents

Improvements in or relating to Sludge Centrifuges

Info

Publication number
GB1199880A
GB1199880A GB49212/68A GB4921268A GB1199880A GB 1199880 A GB1199880 A GB 1199880A GB 49212/68 A GB49212/68 A GB 49212/68A GB 4921268 A GB4921268 A GB 4921268A GB 1199880 A GB1199880 A GB 1199880A
Authority
GB
United Kingdom
Prior art keywords
duct
liquid
pressure
pipe
chamber
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
GB49212/68A
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.)
Alfa Laval AB
Original Assignee
Alfa Laval AB
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 Alfa Laval AB filed Critical Alfa Laval AB
Publication of GB1199880A publication Critical patent/GB1199880A/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
    • B04B1/04—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls
    • B04B1/08—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of conical shape
    • 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
    • B04B1/10—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl
    • B04B1/14—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with discharging outlets in the plane of the maximum diameter of the bowl with periodical discharge
    • 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
    • B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
    • B04B11/082—Skimmers for discharging liquid

Landscapes

  • Centrifugal Separators (AREA)

Abstract

1,199,880. Centrifugal separators. ALFALAVAL A.B. 17 Oct., 1968 [17 Oct., 1967], No. 49212/68. Addition to 1,099,618. Heading B2P. In a modification of the centrifuge described in the patent specification, Fig. 1, the means 18, 19 for intermittently generating a change in the pressure or flow in the indicating pipe 13 is independently connected to a chamber 14 to which the indicating pipe 13 and the duct 16 are both connected. In operation, a gas is supplied through the duct 16 at a sufficient pressure, indicated by the sensing means 17, to prevent the liquid being pumped by the paring disc 15 through the duct in the reverse direction. When sludge clogs the opening of the pipe 13 the liquid, intermittently supplied by means 19 through the duct 18, which opens within, or radially inwardly of, the liquid in the chamber 14, causes a radially inwards displacement of the liquid level in the chamber 14 and the pressure in the pipe 13 and in the duct 16 rises. The rise in pressure in the duct 16 is indicated by the sensing means 17 and when it reaches a predetermined value a sludge discharge is effected manually or automatically. In another modification, Fig. 2, the centrifuge rotor operates completely filled with liquid. Air is continuously supplied, through a duct 16 and at a pressure indicated by means 17, to a chamber 20 which is completely filled with liquid. A duct 21, in which means 22 for generating pressure or flow changes is inserted, and the duct 12, for the discharge of separated liquid, are hermetically connected to the centrifuge rotor by means of seals 23, 24. In operation, the means 22, e.g. a periodically opening valve, intermittently lets liquid and air out of the chamber 20. When the opening of the pipe 13 in the sludge space is clogged, a reduced liquid flow occurs in the pipe 13 and the duct 21 when the valve 22 opens. The means 17 then indicates a pressure reduction and when this reduction is sufficiently large sludge discharge is effected.
GB49212/68A 1967-10-17 1968-10-17 Improvements in or relating to Sludge Centrifuges Expired GB1199880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1417767 1967-10-17

Publications (1)

Publication Number Publication Date
GB1199880A true GB1199880A (en) 1970-07-22

Family

ID=20298651

Family Applications (1)

Application Number Title Priority Date Filing Date
GB49212/68A Expired GB1199880A (en) 1967-10-17 1968-10-17 Improvements in or relating to Sludge Centrifuges

Country Status (3)

Country Link
US (1) US3494545A (en)
DE (1) DE1802676A1 (en)
GB (1) GB1199880A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432748A (en) * 1976-09-03 1984-02-21 Joy Manufacturing Company Centrifuge apparatus and method of operating a centrifuge

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE334847B (en) * 1969-05-08 1971-05-03 Alfa Laval Ab
SE456562B (en) * 1981-10-22 1988-10-17 Westfalia Separator Ag CENTRIFUG WITH VERTICAL VRIDAXEL
SE8302215D0 (en) * 1983-04-20 1983-04-20 Alfa Laval Marine Power Eng centrifugal
SE462077B (en) * 1986-03-12 1990-05-07 Alfa Laval Separation Ab CENTRIFUGAL SEPARATOR WITH CLOSED APPLICATION OF HEAVY COMPONENT
DE4014552C1 (en) * 1990-05-07 1991-07-18 Westfalia Separator Ag, 4740 Oelde, De
DE19922236C2 (en) * 1999-05-14 2002-10-24 Westfalia Separator Ag Centrifuge and process for its operation
US6346069B1 (en) 1999-08-06 2002-02-12 Separation Process Technology, Inc. Centrifugal pressurized separators and methods of controlling same
US6719681B2 (en) * 1999-08-06 2004-04-13 Econova, Inc. Methods for centrifugally separating mixed components of a fluid stream
US6607473B2 (en) 1999-08-06 2003-08-19 Econova Inc. Methods for centrifugally separating mixed components of a fluid stream under a pressure differential
EP2366457B1 (en) * 2010-03-19 2013-03-06 Alfa Laval Corporate AB Device and method for monitoring and adjusting the radial position of an interface layer in a centrifugal separator
WO2012013654A2 (en) 2010-07-30 2012-02-02 Gea Mechanical Equipment Gmbh Separator having a centrifugal drum
EP2644278B1 (en) 2012-03-27 2014-12-10 Alfa Laval Corporate AB Centrifugal separator and method of controlling intermittent discharge
CN103736304B (en) * 2014-01-17 2015-11-04 昆明理工大学 A kind of centrifugal thickener

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277757B (en) * 1965-08-17 1968-09-12 Westfalia Separator Ag Device for triggering a signal or a control pulse depending on the filling of the sludge chamber of a centrifugal drum

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4432748A (en) * 1976-09-03 1984-02-21 Joy Manufacturing Company Centrifuge apparatus and method of operating a centrifuge

Also Published As

Publication number Publication date
DE1802676A1 (en) 1969-04-30
US3494545A (en) 1970-02-10

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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