WO1990007968A1 - Systeme de separation frontale pour separer des particules de fluides - Google Patents

Systeme de separation frontale pour separer des particules de fluides Download PDF

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Publication number
WO1990007968A1
WO1990007968A1 PCT/US1990/000196 US9000196W WO9007968A1 WO 1990007968 A1 WO1990007968 A1 WO 1990007968A1 US 9000196 W US9000196 W US 9000196W WO 9007968 A1 WO9007968 A1 WO 9007968A1
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WO
WIPO (PCT)
Prior art keywords
rotor
recited
openings
separator
fluid
Prior art date
Application number
PCT/US1990/000196
Other languages
English (en)
Inventor
Ing-Tsann Hong
Ernest Chester Fitch
Original Assignee
The Coca-Cola Company
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 The Coca-Cola Company filed Critical The Coca-Cola Company
Publication of WO1990007968A1 publication Critical patent/WO1990007968A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/18—Heating or cooling the filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/52—Regenerating the filter material in the filter by forces created by movement of the filter element
    • B01D33/56—Regenerating the filter material in the filter by forces created by movement of the filter element involving centrifugal force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/705—Filters with filtering elements which move during the filtering operation having feed or discharge devices with internal recirculation through the filter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/80—Accessories
    • B01D33/801—Driving means, shaft packing systems or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/80—Accessories
    • B01D33/804—Accessories integrally combined with devices for controlling the filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/287—Filtering elements with a vertical or inclined rotation or symmetry axis

Definitions

  • This invention relates to the separation of particles from fluids, and in a preferred embodiment to concentrating
  • microorganisms in a sample of orange juice for testing purposes, and in another embodiment to removing bacteria from orange juice to eliminate the need for
  • separation performance depends on the difference between the centrifugal and drag forces that act on the challenged particles. For such separators, the operator has little or no control over the separation process.
  • separation is achieved by fluid passing through a semi-permeable medium capable of retaining on the medium, particles larger than the pore size of the medium.
  • fluids can flow through filter media in twoways normally or tangentially.
  • normal flow see Fig. 4A
  • tangential flow also know as cross flow see Fig. 4B
  • fluid passes essentially parallol to the, filter surface.
  • a frontal separator method and apparatus for separating particles from fluids, such as microorganisms from orange juice comprises a hollow, rotatable, perforated, cylindrical rotor inside of a hollow, rotatable, imperforate case and separated therefrom by an annular separation chamber for the liquid.
  • the rotor encloses an outlet chamber for the clarified liquid.
  • a liquid inlet port communicates with one end of the separation chamber, a
  • concentrated liquid outlet port communicates with the other end of the separation chamber, and a clarified liquid outlet port communicates with the outlet chamber.
  • the openings in the perforated cylinder have a cross-sectional area
  • the outer case is stationary and the rotor openings are at an angle to a radius of the rotor.
  • Fig. 1 is a diagrammatic, cross-sectional view through a preferred embodiment of a frontal separator according to the present invention
  • Fig. 2 is a cross-sectional view through another embodiment of a frontal separator of the present invention.
  • Fig. 3 is a cross-sectional view, taken along line 3-3 of Fig. 1, of a frontal separator illustrating a frontal flow separation process;
  • Fig. 4A is a diagrammatic view illustrating normal
  • Fig. 4B is a diagrammatic view illustrating tangential or cross flow filtration
  • Fig. 4C is a diagrammatic view illustrating frontal
  • Fig. 5 is a diagrammatic view illustrating a normal frontal separation process
  • Fig. 6 is a diagrammatic view illustrating a tangential frontal separation process
  • Fig. 7 is a diagrammatic view illustrating the "golfing effect” or “golfing enhanced separation” of the present
  • Fig. 8 is a graph illustrating golfing effect
  • Fig. 9 is a diagrammatic view illustrating a test system for the frontal separator of this invention.
  • Fig. 10 is a diagrammatic, cross-sectional view of a frontal separator similar to Eig. 1 but with a stationary outer case;
  • Fig. 11A is a cross-sectional view through a frontal
  • Fig. 11B is a perspective view of one rotor useful in the separator of Fig. 11A.
  • Fig. 11C is a partial perspective view of another rotor useful in the separator of Fig. 11A.
  • Fig. 1 is a diagrammatic view of a preferred embodiment of a frontal separator 10 of the present invention.
  • the frontal separator 10 includes an inner, hollow, rotatable, perforated, cylindrical rotor 12 mounted inside of a spaced-apart, outer, imperforate, hollow, rotatable, cylindrical case 14 to provide an annular separation chamber 16 therebetween having an inlet port 18 and a waste port or outlet port 20 communicating therewith.
  • a fluid delivery collar 21 is associated with the inlet port, as will be understood by those skilled in the art.
  • the rotor 12 encloses an outlet chamber 24 for the clarified liquid, and an outlet port 22 communicates with the outlet chamber 24.
  • a drive shaft 26 is connected to a motor 27 and to the rotor and casing.
  • a controller 41 is connected to the motor to control the rotational speed of the rotor and casing.
  • a pump 43 feeds liquid from a reservoir 45 to the inlet port 18.
  • a controller 47 is connected to the pump 43 to control the flow rate of the liquid through the separator 10.
  • the rotor 12 is provided with openings 30 which are
  • the openings 30 are preferably inclined at an angle to a radius of the rotor 12 as indicated by the arrows 32 showing the liquid flow of, for example, orange juice from the inlet port 18, to the separation chamber 16, through the openings 30 in the rotor 12, and then through the outlet port 22.
  • the microorganisms cannot flow through the openings in the rotor 12 for the reasons to the explained below, and thus the orange juice fed out the outlet port 20 has a higher concentration of the microorganisms than does the orange juice fed into the inlet port 18.
  • the openings 30 in the rotor 12 can be normal to the rotor surface or at an angle to the normal (that is, at an angle to a radius of the rotor).
  • the outer case is stationary but the openings 30 are angled.
  • the openings 30 are preferably located on the rotor in a regular array.
  • the openings 30 can be of any
  • Fig. 2 is a cross-sectional view through a frontal
  • separator 40 includes an inner, perforated, cylindrical rotor 42, an outer case 44 fixed to rotate with the rotor, a separation chamber 46, a clarified liquid outlet chamber 48, an inlet line 50 and a fluid delivery collar 51 at one end of the
  • a motor 56 drives the frontal separator 40 through a shaft 57 and suitable bearings as is well-known to those skilled in the art.
  • the rotor includes openings 58
  • the frontal separator system of this invention takes
  • the frontal separator uses rotation to artificially generate a sub-permeable gravitational force, or wave front 34 (see Fig. 3) adjacent to the outer surface of the rotor (12 or 42).
  • This front an extremely thin gravitational force field surrounding the rotor (12 or 42), allows the liquid 60 to penetrate it but rejects certain particles 37 (namely, those of the size and density to be removed from the liquid).
  • the mechanism employed by the frontal separator is the frontal separator
  • the wave front 34 acts just like the media of a filter that rejects particles of a certain size at the upstream porous surface (analogous to the front) but allows fluid to pass through it.
  • the front 34 differs from such a known porous surface in that the artificial gravitational force ejects the particles 37 away from the rotating surface. Such particles 37 will not be retained or allowed to build up on the separating surface of the rotor (12 or 42).
  • the frontal separator essentially consists of a hollow rotating mechanism (the rotor), the surface of which has two portions - a solid wall portion 35 and the openings 30.
  • the rotor rotates, it creates an artificial orbital force field in the adjacent portion of the liquid in the separation chamber; this field then establishes a material rejection front in which particle penetration energy is attenuated.
  • Fig. 5 shows the forces acting on a particle 37 in the separation chamber. These forces consist of a centrifugal force F c induced by the rotating surface, and the drag force F D created by the viscous friction of the liquid 60 on the particle 37.
  • the tangential frontal separator differs from the known normal flow separator (NRS) which has a stationary outer case 14 in that the TFS has a tangential porting configuration for the openings 30 in the rotor 12 instead of normal porting.
  • the concept of the TFS is depicted in Fig. 6.
  • the TFS port can incline in any direction with respect to the rotating surface of the rotor 12, thus reducing the drag force exerted on the
  • a TFS can thus achieve the same separation performance as an NRS can, but with a flow rate many times greater.
  • a tangential port having an inclination of 30 degrees to the rotating surface would produce twice the flow of an NRS, with all other conditions remaining the same.
  • a zero degree inclined port can process an
  • FIG. 7 Another aspect of this invention is a golfing-enhanced separation process, as illustrated in Fig. 7. As shown, the rotatable perforated rotor 12 of the frontal separator 10
  • a particle consists of a solid portion 35 (ribs) and a regular array of holes or flow openings 30. Physically, when particles 37 are opposite the solid section they will experience only the outward (from the rotating center) centrifugal force and when so located any particles having a specific gravity greater than that of the liquid 60 will be accelerated away from the rotor. However, particles traveling across the openings 30 experience both the outward and the inward (radial effluent flow) forces. In theory, a particle can be separated if it can be accelerated and moved outward into the separation chamber 16 far enough away from the rotor 12 while it travels opposite the solid portion 35 of the rotor 12.
  • Still another feature of this invention concerns the power to drive the frontal separator.
  • the drag friction force between the liquid and the associated boundaries, as well as the inertial momentum of the rotor 12, constitute two major resistances that influence the amount of power required to drive the frontal separator.
  • the frontal separator of this invention that uses an outer casing that rotates with the inner rotor can dramatically reduce this separator power requirement.
  • Fig. 1 shows such a frontal separator. In operation, the rotor 12 and the case 14 are connected and rotate together; namely, they have identical angular velocities. Therefore, the relative velocity between the boundary and the adjacent fluid is theoretically zero.
  • the frontal separator includes a cylindrical rotor (or inner boundary) that produces a centrifugal force field within the separation chamber.
  • the outer boundary of the separation chamber may have the same rotational speed as the rotor 12 or it may exhibit a relative rotational velocity with respect to the rotor.
  • the suspension or contaminant may be a gas, a liquid or a solid. Because the suspended particles are more dense than the fluid, then the artificial gravity created the rotating fluid acts on these particles and causes them to move away from the surface of the rotor. The clean fluid will exit through the holes in the rotor and out the outlet port of the outlet chamber, while the concentrated contaminated fluid exits from the waste port of the separation chamber.
  • the flow rate plays an important role in determining the size of the particles the separator removes. The lower the flow rate, the smaller the size particle that can be separated. This situation occurs because the fluid passing through the holes in the rotor tends to drag and transport suspended particles with it. Consequently, flow rate is a critical parameter in designing and operating such a separator.
  • Table 1 shows various known techniques used to separate liquids from solids or other liquids. These techniques are all based on the range of particle-size effectiveness and other primary factors affecting separation. In the present invention, sizes of particles such as microorganisms in the micro-particle range (.5 to 500 micrometers) are involved. In this range, the solid/fluid separation is most effective when applying the properties of size, density, or surface activity. In the present invention, sizes of particles such as microorganisms in the micro-particle range (.5 to 500 micrometers) are involved. In this range, the solid/fluid separation is most effective when applying the properties of size, density, or surface activity. In the
  • the preferred embodiment focuses only on the effects of size and density on separation.
  • Solids can be separated from fluids with the aid of a semi-permeable medium that retains solids larger than the pore size of the medium but allows the liquids to pass through. This process is usually defined as filtration.
  • fluids can flow through media: normally and tangentially. In the normal flow, the fluid passes perpendicular to the surface of the media, while, in the tangential (or cross flow), fluid
  • Particles can also be separated from a fluid by
  • gravitational force either natural or artificial.
  • high artificial gravitation is required.
  • This artificial gravitation can be generated either by mechanical action (centrifugal) or by the kinetic energy possessed by the fluid (cyclonic).
  • mechanical action centrifugal
  • kinetic energy possessed by the fluid cyclonic
  • centrifugal and cyclonic have a commonality -- they "throw away" solids from the rotational center to the collecting
  • residence time of separation is 347 sec. In other words, it takes approximately 6 minutes for a 2- ⁇ m particle to travel from the rotor to the boundary, a distance of 0.5 inches.
  • this calculation is based on the assumption that the centrifugal field is uniformly distributed from the rotor to the boundary.
  • the field has a maximum centrifugal force adjacent to the rotor surface which decreases to zero at the boundary. Therefore, the solids may not reach the boundary.
  • the frontal separation system of this invention adapts both the advantages of a filter and a centrifuge and synergizes them to achieve separation. It uses rotation to artificially generate a sub-permeable gravitational force front adj acent to the rotor surface.
  • This front allows fluid to "break” through, but rejects particles of a designated size.
  • the wave front acts just like a filter that retains particles of a certain size at the upstream membrane surface (analogous to the front) and allows fluid to pass through it.
  • the front is different from the membrane in that the artificial gravitational force will "push" particles away from the rotating surface. Such particles will not be captured or caked on the separating surface.
  • a frontal separator includes a hollow rotor in a closed vessel.
  • the surface of the rotor has two portions: a solid portion and holes.
  • the rotor rotates, it creates an artificial orbital field in the liquid which establishes a material rejection front in which material penetration energy is attenuated.
  • the force balance equations which describe the frontal force (the centrifugal force adjacent to the rotating surface) and the drag forces imposed on the particle are:
  • V tangential velocity
  • Equation (7) describes the separation characteristic of a frontal separator.
  • TFS tangential frontal separator
  • Fig. 6 depicts the concept of tangential frontal separation.
  • the port or hole 30 inclines to the rotating surface with an angle, ⁇ .
  • the drag force exerted on the particle with an effluent flow rate Q (namely, vertical particle
  • a TFS can achieve the identical separation as an ordinary normal frontal separator with a flow rate of
  • a zero degree port can process an infinite amount of flow.
  • Fig. 7 shows the golfing-enhanced separation process.
  • the rotor surface of a frontal separation consists of a solid portion (rib) and a porous portion (hole or opening 30). Physically, particles only experience the outward (from the rotating center) centrifugal force at the solid section. Any particles having a specific gravity greater than the fluid will be accelerated away from the surface of the rotor 12 in the solid portion 35. However, particles travelling across the openings 30 experience both the outward and inward (radial effluent flow force) forces.
  • the solid length is 1s and the rectangular hole size is 1x. Then, the particle will be forced away from the solid surface having a distance of
  • Vr particle inward radial velocity
  • Vr is zero in the solid section.
  • the porosity is
  • FC-1 operated on the normal frontal separator principle, which uses a normal effluent flow pattern.
  • Table 2 shows the design data for this separator. As this table shows, all microorganisms having a size of 2 microns and larger can theoretically be separated from the citrus juice at an effluent flow rate of 0.025 gpm at 5000 rpm.
  • FC-2 uses tangential porting with a tangential flow angle of 30 degrees. Table 3 shows the data for this design. The effluent flow rate is twice that of
  • the prototype frontal separator 70 is shown diagrammatically in Fig. 10 and in cross-section in Fig. 11A.
  • This separator includes a rotor 72, a stationary case 74, a separation
  • These prototype frontal separators included a hollow, perforated cylindrical rotor 72 that rotates within a body of liquid 88. This fluid is contained within a stationary outer case, as shown in Figs. 10 and 11.
  • the frictional drag generated by the motor causes the liquid next to the surface of the rotor 72 to rotate.
  • the liquid is pumped to the inlet port of the rotor. If suspended particles more dense than the liquid are present, artificial gravity acts on these particles. This artificial gravity causes the particles to move away from the rotor. Depending on the flow rate, the clean fluid comes out of the outlet port 82 while concentrated contaminated fluid comes out the waste port 80.
  • the flow rate plays an important role in the efficiency of the separator. The higher the flow rate, the lower the separation efficiency. This situation occurs because the fluid passing near the rotor tends to carry some of the suspended particles into the outlet stream. Consequently, flow rate is a critical parameter in designing the separator.
  • Fig. 11A is a sectional view of one of the prototype
  • the outer case 74 was made of 6061 grade aluminum to allow for easy machining.
  • the internal diameter of this case is 5 inches.
  • a cooling system integrated into the body of the outer case dissipates any heat that the separator generates while it is operating.
  • the rotor 72 which was also constructed of 6061 grade aluminum, has a 4-inch diameter and is attached to a stainless steel center shaft 90.
  • the rotor of the FC-1 prototype was perforated with evenly distributed 1/4 inch holes as shown in Fig. 11B. These holes allow clean fluid to pass freely into the center shaft and out the outlet port 82 (see Fig. 11A).
  • the rotor was mounted in the outer case with high-speed, self-lubricating roller bearings.
  • Conventional high-pressure double face seals seal against the rotating shaft and prevent the fluid from getting into the bearing cavities.
  • the separator was designed to operate at its maximum capacity at 5000 rpm. To achieve this speed, the separator was belt-driven through a pulley multiplication system powered by a variable speed
  • Fig. 9 is a schematic of the test system 100 used to perform all the experiments. This system consists of three sub-systems: a feed system 102, separator system 104, and power drive
  • the feed system consists of a reservoir 108, a circulating pump 110, and a shut-off valve 112.
  • the contaminated fluid continuously circulates so It is completely mixed before it enters the separator.
  • the separator system 104 consists of the outer case and rotor assembly, integrated cooling system, inlet and outlet ports with sample valves, and a rotor shaft 130 connected to a V-belt drive system 132.
  • the power drive system 106 mainly consists of a variable speed power unit 134 that drives the hydraulic motor 136.
  • a flow meter 138, pressure transducer, and flow control valves are used for calculating horse power.
  • the test system 100 is completely flushed with clean water and 150 ppm of bleach to Insure that it is sanitary. The system is then flushed several times with clean water to remove any traces of chloride.
  • the reservoir 108 is filled with test fluid. A specified amount of particles are injected into the reservoir and circulated for 10-15 minutes to insure complete mixing. The sample is extracted from the reservoir to determine the background, or field concentration level. The rotor speed is adjusted to 5000 rpm and the suspension fluid is injected into the separator. A speed of 5000 rpm must be maintained during the filling of the separator or the speed will decrease. Samples from the outlet port and the waste port are collected and
  • N ⁇ number of particles at the inlet port of
  • Nd number of particles at the outlet port of
  • This invention provides a new separation technique different from both normal frontal separation and cross-flow filtration, and which in a preferred embodiment separates microorganisms from citrus juice.
  • the tangential frontal separation system of this invention has been experimentally demonstrated to separate Rhodotorula Rubra from apple juice. The experiment used a prototype laboratory unit of the separator. The average
  • Tables 8-13 are computer printouts (based on a mathematical model) of different frontal separator design data sheets in which various parameter were chosen to see what the affect would be on other parameters. For example, various rotor sizes were chosen to see the affect on flow rate. Also different rotational speeds were chosen to see the affect on flow rates. The difference in power in going from a stationery outer case to a rotating case is dramatic.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Centrifugal Separators (AREA)

Abstract

Procédé et appareil de séparation frontale pour séparer des particules de fluides, telles que des micro-organismes de jus, l'appareil comprenant un rotor cylindrique creux, rotatif et perforé, monté à l'intérieur d'un carter externe espacé du rotor et ayant une chambre de séparation annulaire entre les deux. Le fluide avec les particules à séparer est introduit dans la chambre de séparation, puis s'écoule au travers des orifices percés dans le rotor et sort par une sortie tandis que les particules sortent par un orifice de rebus ménagé dans la chambre de séparation. Le carter externe tourne de préférence avec le rotor et les trous, qui ont un diamètre sensiblement plus grand que celui des particules, font de préférence un angle par rapport à un rayon du rotor.
PCT/US1990/000196 1989-01-10 1990-01-09 Systeme de separation frontale pour separer des particules de fluides WO1990007968A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US29532989A 1989-01-10 1989-01-10
US295,329 1989-01-10

Publications (1)

Publication Number Publication Date
WO1990007968A1 true WO1990007968A1 (fr) 1990-07-26

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668076A1 (fr) * 1990-10-18 1992-04-24 Kodak Pathe Procede de separation de constituants solides d'une suspension et dispositif de mise en óoeuvre du procede.
WO1992006764A1 (fr) * 1990-10-10 1992-04-30 Alain Miller Procede et dispositif de separation de cellules a partir d'un milieu de culture fluide
EP0748645A2 (fr) * 1995-06-16 1996-12-18 Eric Gustaf Lundin Filtre rotatif
DE102015015285A1 (de) * 2015-10-02 2017-04-06 Mr. Wash Autoservice AG Vorrichtung und Verfahren zum Reinigen von Brauchwasser
WO2022200830A1 (fr) * 2021-03-24 2022-09-29 Gideon Pinto Dispositif autonettoyant et procédé de filtration continue de fluides à viscosité élevée
WO2022200687A1 (fr) * 2021-03-25 2022-09-29 Titoff Matias Procédé et appareil de traitement de mélanges de liquides et de solides

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443696A (en) * 1967-05-01 1969-05-13 Little Inc A Solid-fluid separating device
US4184952A (en) * 1978-05-12 1980-01-22 Shell Oil Company Measurement of BSW in crude oil streams
EP0137510A2 (fr) * 1983-10-12 1985-04-17 Politechnika Warszawska Dispositif de séparation dynamique des particules suspendues d'un liquide

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3443696A (en) * 1967-05-01 1969-05-13 Little Inc A Solid-fluid separating device
US4184952A (en) * 1978-05-12 1980-01-22 Shell Oil Company Measurement of BSW in crude oil streams
EP0137510A2 (fr) * 1983-10-12 1985-04-17 Politechnika Warszawska Dispositif de séparation dynamique des particules suspendues d'un liquide

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992006764A1 (fr) * 1990-10-10 1992-04-30 Alain Miller Procede et dispositif de separation de cellules a partir d'un milieu de culture fluide
BE1004599A5 (fr) * 1990-10-10 1992-12-22 Miller Alain Procede et dispositif de separation de particules a partir d'un milieu fluide.
FR2668076A1 (fr) * 1990-10-18 1992-04-24 Kodak Pathe Procede de separation de constituants solides d'une suspension et dispositif de mise en óoeuvre du procede.
WO1992006765A1 (fr) * 1990-10-18 1992-04-30 Kodak-Pathe Procede de separation de constituants solides d'une suspension et dispositif de mise en ×uvre du procede
US5401422A (en) * 1990-10-18 1995-03-28 Eastman Kodak Company Separation method for solid constituents of a suspension and device for carrying out this method
EP0748645A2 (fr) * 1995-06-16 1996-12-18 Eric Gustaf Lundin Filtre rotatif
EP0748645A3 (fr) * 1995-06-16 1997-04-02 Lundin Eric G Filtre rotatif
DE102015015285A1 (de) * 2015-10-02 2017-04-06 Mr. Wash Autoservice AG Vorrichtung und Verfahren zum Reinigen von Brauchwasser
WO2022200830A1 (fr) * 2021-03-24 2022-09-29 Gideon Pinto Dispositif autonettoyant et procédé de filtration continue de fluides à viscosité élevée
TWI829113B (zh) * 2021-03-24 2024-01-11 基甸 平托 用於連續過濾高黏性流體的自動清洗裝置和方法
WO2022200687A1 (fr) * 2021-03-25 2022-09-29 Titoff Matias Procédé et appareil de traitement de mélanges de liquides et de solides

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