US3476310A - Sealing of mounting centrifugal separator - Google Patents

Sealing of mounting centrifugal separator Download PDF

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Publication number
US3476310A
US3476310A US703634A US3476310DA US3476310A US 3476310 A US3476310 A US 3476310A US 703634 A US703634 A US 703634A US 3476310D A US3476310D A US 3476310DA US 3476310 A US3476310 A US 3476310A
Authority
US
United States
Prior art keywords
catcher
drum
bowl
liquid
solids
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 - Lifetime
Application number
US703634A
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English (en)
Inventor
Carl Poppenberg
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.)
GEA Mechanical Equipment GmbH
Original Assignee
Westfalia Separator GmbH
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 Westfalia Separator GmbH filed Critical Westfalia Separator GmbH
Application granted granted Critical
Publication of US3476310A publication Critical patent/US3476310A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B15/00—Other accessories for centrifuges
    • B04B15/02—Other accessories for centrifuges for cooling, heating, or heat insulating
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B15/00—Other accessories for centrifuges
    • B04B15/06—Other accessories for centrifuges for cleaning bowls, filters, sieves, inserts, or the like

Definitions

  • the invention relates to nozzle separators and separators of the self-opening type which, while remaining in operation, continuously or periodically eject from the drum the solids separated from the liquid in which they are carried.
  • the drum in such separators envelops a separating chamber located in the center part and usually equipped with a plate insert, and a concentrating chamber or sludge chamber located outside of the plate insert.
  • the solids are separated from the liquid and forced outward on account of their greater specific weight.
  • the solid-free liquid flows inward, and emerges from the drum through an outlet located in the vicinity of the drum axis.
  • Nozzle separators continually throw the solids and some of the liquid in pulp form through calibrated openings in the form of interchangeable nozzles which are disposed at a greater distance from the axis of rotation than the outlet for the liquid. These nozzles can be located in the plane of maximum drum diameter. They connect the concentrating chamber directly with the outer chamber. However, they may also be disposed in the bottom or in the cover of the drum, closer to the drum axis, and be connected by means of tubes with the radially external portion of the concentrating chamber. Nozzle separators of the last-named kind are disclosed, for example, in German Patents 559,138 and 869,029.
  • the solids separated from the liquid are first collected in the sludge chamber and are periodically ejected through openings in the periphery of the drum. These openings are opened and closed by an axially displaceable piston slide valve which is externally controlled hydraulically or pneumatically.
  • a centrifugal separator of this kind has been described, for example, in German Patent 1,000,292.
  • British Patent 778,503 has disclosed a method of flushing out solid-jacket separators whose stationary discharges are hermetically sealed in relation to the rotating drum, without taking them apart, by introducing flushing liquid through the outlet for the specifically lighter component, which then comes back out through the outlet for the specifically heavier component. Due to the fact that this outlet is in the vicinity of the drum axis, it is not possible while the drum is in rotation to flush out of the drum the specifically heavier solids deposited on the periphery of the drum.
  • the flushing liquid in nozzle separators and separators of the self-opening type, is driven out through the openings provided for the ejection of the solids, these openings being arranged at a much greater distance from the drum axis or even in the periphery of the drum. So the flushing liquid follows the same path as the solids do during the centrifuging operation, so that the solids are reliably entrained by the flushing liquid.
  • Nozzle separators which are used in the yeast industry, have to meet stringent requirements with regard to their sterility, because infections of the yeast wort can have very unfavorable consequences. The same applies to self-opening separator drums which are used in the pharmaceutical industry and in the food industry. In order to achieve the necessary degree of purity, it IS necessary to use a very hot liquid or hot steam for the cleaning.
  • the invention is aimed at preventing these disadvantages.
  • the process of the invention is characterized in that, while hot water or hot steam is fed into the drum, the gap between the bottom of the drum and the bottom of the solid catcher, which is made at least approximately parallel thereto, is continuously supplied with cooling liquid. In this manner, the vapors penetrating into the gap are precipitated and the rotating drum flings them outward into the solid catcher together with the cooling liquid.
  • the apparatus for the practice of this method is characterized in that the bottom of the solid catcher extends inward at a slight distance from the drum bottom and is joined on its underside with an annular distributor tube for cooling liquid, the latter tube being provided with a connection for the admission of cooling liquid and with holes distributed about its periphery which empty through corresponding holes or openings in the bottom of the solid catcher into the annular gap between the drum bottom and the catcher bottom.
  • the invention provides an improvement in centrifugal separators.
  • Such separators include a rotatable drive shaft on which a bowl is mounted for rotation with the shaft, and a catcher disposed about said bowl for receiving the solids and the flushing liquid respectively discharged from the bowl.
  • the catcher is mounted around the bowl, which may oscillate because the spindle is flexibly mounted in the frame.
  • the bowl and catcher define a passageway communicating the catcher with the inner room of the frame. Through this passageway vapors or steam may pass from the catcher to the inner room of the frame.
  • means are provided for introducing a cooling liquid into said passageway for precipitating of the vapors or steam, the condensate of which is thrown outward into the catcher by the rotating bowl together with the cooling liquid.
  • the passageway extends radially outwardly and downwardly from adjacent the drum axis, and the means for introducing the cooling liquid communicates with the passageway the condensate and the cooling liquid are thrown outward into the catcher by the rotating drum.
  • the figure illustrates an example of a nozzle separator according to the invention.
  • the drum bottom 1 and the drum cover 2 are held together by a ring 3.
  • 4 designates the separating chamber which can be equipped with a set of conical insert plates. Tubes 7 lead from the concentration chamber 6 outside of the plate insert to the nozzles 8 for the ejection of the concentrated solids.
  • the bottom 10 of catcher 9 for the ejected solids extends inward, according to the invention, at a slight distance from the drum bottom, so that an annular gap 11 is formed between the two parts.
  • the bottom 10 of catcher 9 is joined on its bottom side to an annular distributor tube 12.
  • the connector 13 serves for connection to a source of coolant.
  • Distributor tube 12 is provided with holes 12a distributed along its periphery which align with matching holes or openings in the bottom 10 of catcher 9 and empty into gap 11.
  • the cleaning is performed in the following manner. After the centrifuging operation is ended, the cock 14 is to be opened and the infeed 15 is to be changed over by means of three-way valve 16 from the crude mixture supply 17 to the flushing liquid supply 18.
  • the flushing liquid enters the drum by the same route as the crude mixture and some of it is driven through tubes 7 and nozzles 8 into the solids catcher 9 and some through the liquid outlet 19 into the liquid catcher 20. Vapors which might pass through gap 11 into the ball bearings 21 and 22 and the transmission 23 are condensed by the cooling liquid and are flung together with the latter by the rotating drum into catcher 9.
  • a centrifugal separator comprising: (a) drive means including a rotatable drive shaft; (b) a bowl mounted on said shaft for rotation therewith; l (c) a catcher disposed about said bowl for receiving the solids and the flushing liquid respectively discharged from the bowl, the catcher being mounted around the bowl; (d) the bowl and catcher defining a passageway communicating the catcher with the inner room of the frame, said passageway imposing a threat of passing of vapors or steam from the catcher into the inner room of the frame;

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  • Centrifugal Separators (AREA)
US703634A 1967-02-09 1968-02-07 Sealing of mounting centrifugal separator Expired - Lifetime US3476310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0043326 1967-02-09

Publications (1)

Publication Number Publication Date
US3476310A true US3476310A (en) 1969-11-04

Family

ID=7603613

Family Applications (1)

Application Number Title Priority Date Filing Date
US703634A Expired - Lifetime US3476310A (en) 1967-02-09 1968-02-07 Sealing of mounting centrifugal separator

Country Status (5)

Country Link
US (1) US3476310A (fr)
DE (2) DE1533768A1 (fr)
FR (1) FR1554210A (fr)
GB (1) GB1164411A (fr)
SE (1) SE336762B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601307A (en) * 1970-03-19 1971-08-24 Pennwalt Corp Centrifuge with spindle-sealing means
US4335079A (en) * 1980-10-20 1982-06-15 Vander Mey John E Apparatus for the sulfonation or sulfation of organic liquids
WO1983004378A1 (fr) * 1982-06-10 1983-12-22 Trinlo Corporation Dispositif de sulfonation ou de sulfatation de liquides organiques
WO1986006006A1 (fr) * 1985-04-11 1986-10-23 Alfa-Laval Separation Ab Separateur centrifuge avec un rotor ayant a sa circonference des orifices de decharge intermittente d'un produit separe et un orifice de decharge d'un liquide de travail
US20060292318A1 (en) * 2003-09-03 2006-12-28 Parrinello Luciano M Water resistant ink jet printable sheet
US20140237963A1 (en) * 2011-09-13 2014-08-28 3Nine Ab Apparatus for centrifugal separation
KR20170109667A (ko) * 2015-02-06 2017-09-29 알파 라발 코포레이트 에이비 디스크 스택 원심 분리기
WO2017198475A1 (fr) * 2016-05-18 2017-11-23 Gea Mechanical Equipment Gmbh Procédé de désinfection thermique d'une centrifuge
CN110665650A (zh) * 2019-09-30 2020-01-10 周振珊 一种基于阻力生成顽垢深度清洁的蝶式生物离心机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3705377C1 (en) * 1987-02-20 1988-04-14 Westfalia Separator Ag Centrifuge drum

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3601307A (en) * 1970-03-19 1971-08-24 Pennwalt Corp Centrifuge with spindle-sealing means
US4335079A (en) * 1980-10-20 1982-06-15 Vander Mey John E Apparatus for the sulfonation or sulfation of organic liquids
WO1983004378A1 (fr) * 1982-06-10 1983-12-22 Trinlo Corporation Dispositif de sulfonation ou de sulfatation de liquides organiques
WO1986006006A1 (fr) * 1985-04-11 1986-10-23 Alfa-Laval Separation Ab Separateur centrifuge avec un rotor ayant a sa circonference des orifices de decharge intermittente d'un produit separe et un orifice de decharge d'un liquide de travail
US20060292318A1 (en) * 2003-09-03 2006-12-28 Parrinello Luciano M Water resistant ink jet printable sheet
US20140237963A1 (en) * 2011-09-13 2014-08-28 3Nine Ab Apparatus for centrifugal separation
KR20170109667A (ko) * 2015-02-06 2017-09-29 알파 라발 코포레이트 에이비 디스크 스택 원심 분리기
KR101998010B1 (ko) 2015-02-06 2019-07-08 알파 라발 코포레이트 에이비 디스크 스택 원심 분리기
WO2017198475A1 (fr) * 2016-05-18 2017-11-23 Gea Mechanical Equipment Gmbh Procédé de désinfection thermique d'une centrifuge
US20190143343A1 (en) * 2016-05-18 2019-05-16 Gea Mechanical Equipment Gmbh Method for thermally disinfecting a centrifuge
US10799886B2 (en) 2016-05-18 2020-10-13 Gea Mechanical Equipment Gmbh Method for thermally disinfecting a centrifuge
CN110665650A (zh) * 2019-09-30 2020-01-10 周振珊 一种基于阻力生成顽垢深度清洁的蝶式生物离心机

Also Published As

Publication number Publication date
GB1164411A (en) 1969-09-17
SE336762B (fr) 1971-07-12
DE1533768A1 (fr) 1970-05-21
FR1554210A (fr) 1969-01-17
DE1532768A1 (de) 1970-05-21

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