WO2006107192A2 - Dispositif et procede de separation d'un fluide et plus particulierement d'une emulsion - Google Patents

Dispositif et procede de separation d'un fluide et plus particulierement d'une emulsion Download PDF

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Publication number
WO2006107192A2
WO2006107192A2 PCT/NL2006/000172 NL2006000172W WO2006107192A2 WO 2006107192 A2 WO2006107192 A2 WO 2006107192A2 NL 2006000172 W NL2006000172 W NL 2006000172W WO 2006107192 A2 WO2006107192 A2 WO 2006107192A2
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
space
drum
inner casing
casing
Prior art date
Application number
PCT/NL2006/000172
Other languages
English (en)
Other versions
WO2006107192A3 (fr
Inventor
Arie Boele Hendrick
Original Assignee
Rowe Parsons International B.V.
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 Rowe Parsons International B.V. filed Critical Rowe Parsons International B.V.
Publication of WO2006107192A2 publication Critical patent/WO2006107192A2/fr
Publication of WO2006107192A3 publication Critical patent/WO2006107192A3/fr

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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
    • B04B11/02—Continuous feeding or discharging; Control arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0205—Separation of non-miscible liquids by gas bubbles or moving solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0217—Separation of non-miscible liquids by centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
    • B01D21/262—Separation of sediment aided by centrifugal force or centripetal force by using a centrifuge
    • 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
    • B04B1/06—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles with inserted separating walls of cylindrical shape

Definitions

  • the invention relates to a device for separating into multiple components a fluid, such as gas, water, oil and more particularly an emulsion such as a mixture of water and oil, milk and so on, which device consists of a drum consisting of a cylindrical outer casing, a bottom and a cover, which bottom and cover can be or are attached hermetically to the outer casing, and wherein a cylindrical inner casing is mounted coaxially on the drum, thereby creating a space bounded by the outer surface of the cylindrical inner casing, the inner surface of the cylindrical outer casing, the bottom and the cover, in which space a large number of elongate elements are arranged extending from the inner casing as far as the outer casing, which drum can be set into rotation about its axis of symmetry or axis of rotation using drive means, in addition to supply means for feeding the fluid to the space close to the one outer end of the cylindrical casings and discharge means for discharging the fluid from the space close to the other outer end of the cylindrical casings .
  • the object of the invention is a device with which it is possible to separate into its components a fluid consisting of a mixture of liquids, such as an emulsion of oil in water and fat in milk or a gas in which a liquid is suspended in finely distributed manner.
  • a fluid consisting of a mixture of liquids, such as an emulsion of oil in water and fat in milk or a gas in which a liquid is suspended in finely distributed manner.
  • the cover is provided with two concentric circular outflow openings which are separated from each other and the centres of which coincide with the axis of rotation, wherein the outflow opening with the greater diameter is separated by a wall from the outflow opening with the smaller diameter, and that the discharge means comprise two outlets separated from each other, wherein the one or first outlet discharges the fluid situated close to the outer casing from the space via the outflow opening with the greater diameter and the other or second outlet discharges the fluid situated close to the inner casing from the space via the outflow opening with the smaller diameter.
  • the device according to the invention can rapidly separate an emulsion, such as a mixture of water and oil or a mixture of milk and fat, into a fraction with a high specific weight and a fraction with a low specific weight.
  • the device is also suitable for rapid separation of a gas, in which a liquid is present in finely distributed state, into a gas fraction and a liquid fraction.
  • a drawback of this known device is that when the flow rate changes the efficiency hereby falls rapidly, or that an undesirable quantity of water is entrained with the separated oil because the separating surface between water and oil must lie a determined distance from the rotation axis in order to obtain proper operation of the device.
  • the device according to the invention allows a variable separating surface.
  • An additional advantage of the device according to the present invention is that solid particles which are present in the emulsion and which are deposited during rotation against the inner wall of the outer cylinder wall can be easily removed when the inner cylinder with the brush bristles can rotate independently of the drum. The solid particles deposited on the inner wall of the outer wall can then be removed from the drum in simple manner.
  • the elongate elements are preferably brush bristles which are fixed at one outer end to the inner cylinder wall and these together thus form a brush roller, and the space consists of three parts, viz. a brush space, in which part the elongate wire-like elements are arranged and through which the fluid flows from the feed to the discharge, a supply space for feed of the fluid to the space and a discharge space for discharge of the fluid from the drum, and that an intermediate plate arranged between the brush space and the discharge space separates the brush space from the discharge space, and the discharge space is divided into two parts by a wall, a first and a second part, with an opening in the intermediate plate close to the outer cylinder casing, through which opening the fluid flows via the one part of the discharge space to the outflow opening with the larger radius forming the first outlet, and that a second opening is arranged in the intermediate plate close to the inner cylinder casing, which second opening discharges the fluid via the second part of the discharge space via the second circular outflow opening with the smaller radius .
  • the drum preferably rotates about a vertical axis and the internal cylindrical inner casing extends through the smaller outflow opening, and the feed consists of a tube which protrudes freely of the drum in the internal cylindrical inner casing.
  • a uniform weight distribution during rotation is obtained due to the vertical arrangement, and placing of the feed freely of the drum in the inner cylindrical casing achieves that the supply of the fluid through a stationary tube which does not co-rotate can be fed to the device.
  • Fig. 1 shows a cross-section of a device according to the invention.
  • Fig. 2 is a cross-section through a device according to the invention as shown in figure 1, wherein the device is shown tilted.
  • FIG. 1 shows a device according to the invention.
  • the device consists of a drum 1, consisting of a cylindrical outer casing 2, a bottom 3 and a cover 4. Bottom 3 and cover 4 are hermetically attached to the outer casing close to the periphery.
  • a double-walled cylindrical inner casing 5, 6 is arranged co-axially in drum 1, whereby a space 7 is created bounded by outer surface 8 of the cylindrical inner casing 6, inner surface 9 of the cylindrical outer casing 2, bottom 3 and cover 4.
  • Arranged in this space 7 are a large number of elongate elements 10 in the form of brush bristles which are fixed at one outer end to inner casing 5 and which extend as far as outer casing 2.
  • Drum 1 can be set into rotation about its axis of symmetry 12 using drive means 11.
  • Cover 4 is provided with two concentric circular outflow openings 14 and 15 which are separated from each other and the centres of which coincide with the axis of rotation, wherein the first outflow opening 14 with the greater diameter is separated by a wall 16 from the second outflow opening 15 with the smaller diameter.
  • the elongate elements are brush bristles 10 which are fixed with one outer end to the inner cylinder wall 5, and these together thus form a brush roller.
  • Space 7 consists of three parts, viz. a feed space 17 for feeding the fluid to space 7, a brush space 18, in which part the elongate wire- like elements 10 are arranged and around which the fluid flows from the feed to the discharge, and a discharge space 19 for discharging the fluid from drum 1.
  • a feed space 17 for feeding the fluid to space 7
  • a brush space 18 in which part the elongate wire- like elements 10 are arranged and around which the fluid flows from the feed to the discharge
  • a discharge space 19 for discharging the fluid from drum 1.
  • Discharge space 19 is divided into two parts by a wall 16, a first and a second part.
  • intermediate plate 20 Arranged in intermediate plate 20 close to the outer cylinder casing is an opening 21 through which the fluid flows via the one part of discharge space 19 to outflow opening 14 with the larger radius which forms the first outlet.
  • a second opening 22 is arranged in intermediate plate 19 close to the inner cylinder casing, which second opening 22 discharges the fluid via the second part of the discharge space via the second circular outflow opening 15 with the smaller radius.
  • Figure 2 shows a part of the same device as shown in figure 1, wherein it is tilted through 45'.
  • the device rotates the liquid in space 7, under the influence of the centrifugal and centripetal forces, will then be pressed against the outer wall and separated in layers.
  • the solid particles present in the fluid with a higher specific weight than the fluid will be deposited onto inner surface 9 of outer wall 2.
  • the fluid itself if it consists for instance of water with oil in solution, will be separated into two, wherein a separating surface 23 will be created.
  • the separating surface will be set subject to the specific weight of the two liquids and the radius of the two outflow openings 14, 15 of the two liquids, thus the large radius 24 (R water ) and the small radius 25 (R oi i) .
  • the separating surface will be set subject to the applied radii of the two outflow openings 14 and 15. The most advantageous situation can then be set experimentally, wherein a good separation of the water and the oil can be obtained.
  • Figure 3 shows in partial cross-section the upper part of the drum.
  • the fraction of the fluid with the highest specific weight flows out of the drum as according to arrow 26 and the fraction with the lowest specific weight moves via throughflow openings 27 and outflow opening 15 and will be collected in collecting container 28, whereafter it can be discharged.
  • the method for separating mixed together substances such as an emulsion of water with oil or milk with fat using a device is now as follows: the drum is first set into rotation together with the cylindrical inner casing while the drum is still empty, and the fluid for separating is supplied via the feed to the space in the drum once the drum has been brought to a desired number of rotations per unit of time. The supply is then controlled such that the best possible separation of the two substances is obtained at the egress of the drum. Since it may occur that the bristles of the brush do not connect properly to the cylindrical outer wall of the drum, a determined quantity of a solid can be added to the fluid for a determined period of time until a desired quantity of solid has been introduced into the drum, whereafter the fluid is supplied continuously without the added solid. This can prevent the possible occurrence of a flow along the outer surface because the outer ends of the brush bristles do not connect sufficiently to the cylindrical outer wall .

Abstract

La présente invention concerne un dispositif utiliser pour séparer en de multiples composants un fluide tel qu'un gaz, de l'eau, de l'huile et plus particulièrement une émulsion telle qu'un mélange d'eau et d'huile, du lait, etc. Le dispositif comprend un tambour (1) entraîné de façon qu'il tourne autour d'un axe de rotation (12) et comportant un boîtier extérieur cylindrique (2) dans lequel un boîtier intérieur cylindrique (5, 6) est disposé coaxialement, créant ainsi un espace (7) dans lequel un grand nombre d'éléments allongés, tels que des soies d'un pinceau (10), est disposé de façon que ces éléments s'étendent depuis le boîtier intérieur jusque qu'au boîtier extérieur. Selon cette invention, le tambour comporte deux ouvertures d'évacuation circulaires qui sont séparées l'une de l'autre par une paroi (16) et dont les centres coïncident avec l'axe de rotation, la première ouverture d'évacuation (14) présentant le plus grand diamètre déchargeant de l'espace (7) le fluide se trouvant à proximité du boîtier extérieur, tandis que la seconde ouverture d'évacuation (15) décharge de l'espace le fluide se trouvant à proximité du boîtier intérieur (5).
PCT/NL2006/000172 2005-04-04 2006-04-04 Dispositif et procede de separation d'un fluide et plus particulierement d'une emulsion WO2006107192A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1028691A NL1028691C1 (nl) 2005-04-04 2005-04-04 Inrichting en werkwijze voor het scheiden van een fluïdum en meer speciaal een emulsie.
NL1028691 2005-04-04

Publications (2)

Publication Number Publication Date
WO2006107192A2 true WO2006107192A2 (fr) 2006-10-12
WO2006107192A3 WO2006107192A3 (fr) 2006-11-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2006/000172 WO2006107192A2 (fr) 2005-04-04 2006-04-04 Dispositif et procede de separation d'un fluide et plus particulierement d'une emulsion

Country Status (2)

Country Link
NL (1) NL1028691C1 (fr)
WO (1) WO2006107192A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103406213A (zh) * 2013-07-08 2013-11-27 施健 一种油水离心分离机
CN115335131A (zh) * 2020-03-17 2022-11-11 流体处理有限责任公司 用于液力空气和沉积物分离装置的聚结媒介

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1435545A (en) * 1917-12-21 1922-11-14 William L Morris Centrifugal extractor
US3438571A (en) * 1965-03-08 1969-04-15 Alfa Laval Ab Centrifugal separator
US3468475A (en) * 1966-05-23 1969-09-23 Alfa Laval Ab Method and apparatus for shockless feeding of liquid to the separating chamber of a centrifuge
US3695509A (en) * 1969-08-08 1972-10-03 Termomeccanica Italiana Spa Centrifugal separator for separating emulsions
US3791575A (en) * 1971-08-30 1974-02-12 Garrett Corp Centrifugal separator discharge control system
GB1408418A (en) * 1971-11-22 1975-10-01 Thordarson J Separating apparatus
US4209127A (en) * 1977-03-23 1980-06-24 Khapaev Vadim M Method of breaking down emulsions and a device for carrying same into effect
FR2652762A1 (fr) * 1989-10-11 1991-04-12 Lecoffre Yves Dispositif destine a separer des fluides et des solides d'un fluide porteur.
WO1995033543A1 (fr) * 1994-06-03 1995-12-14 International Separation Technology, Inc. Centrifugeuse et son rotor
WO2000032297A1 (fr) * 1998-12-01 2000-06-08 Rowe Parsons International B.V. Separateur

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU955975A1 (ru) * 1980-12-29 1982-09-07 Казанский Химико-Технологический Институт Им.С.М.Кирова Центробежный экстрактор

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1435545A (en) * 1917-12-21 1922-11-14 William L Morris Centrifugal extractor
US3438571A (en) * 1965-03-08 1969-04-15 Alfa Laval Ab Centrifugal separator
US3468475A (en) * 1966-05-23 1969-09-23 Alfa Laval Ab Method and apparatus for shockless feeding of liquid to the separating chamber of a centrifuge
US3695509A (en) * 1969-08-08 1972-10-03 Termomeccanica Italiana Spa Centrifugal separator for separating emulsions
US3791575A (en) * 1971-08-30 1974-02-12 Garrett Corp Centrifugal separator discharge control system
GB1408418A (en) * 1971-11-22 1975-10-01 Thordarson J Separating apparatus
US4209127A (en) * 1977-03-23 1980-06-24 Khapaev Vadim M Method of breaking down emulsions and a device for carrying same into effect
FR2652762A1 (fr) * 1989-10-11 1991-04-12 Lecoffre Yves Dispositif destine a separer des fluides et des solides d'un fluide porteur.
WO1995033543A1 (fr) * 1994-06-03 1995-12-14 International Separation Technology, Inc. Centrifugeuse et son rotor
WO2000032297A1 (fr) * 1998-12-01 2000-06-08 Rowe Parsons International B.V. Separateur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch, Week 198328 Derwent Publications Ltd., London, GB; Class J01, AN 1983-710188 XP002396313 & SU 955 975 A (KAZAN KIROV CHEM TECHN) 7 September 1982 (1982-09-07) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103406213A (zh) * 2013-07-08 2013-11-27 施健 一种油水离心分离机
CN115335131A (zh) * 2020-03-17 2022-11-11 流体处理有限责任公司 用于液力空气和沉积物分离装置的聚结媒介

Also Published As

Publication number Publication date
WO2006107192A3 (fr) 2006-11-23
NL1028691C1 (nl) 2006-10-09

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