US3350000A - Integral gradient removable disc columns - Google Patents

Integral gradient removable disc columns Download PDF

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Publication number
US3350000A
US3350000A US453940A US45394065A US3350000A US 3350000 A US3350000 A US 3350000A US 453940 A US453940 A US 453940A US 45394065 A US45394065 A US 45394065A US 3350000 A US3350000 A US 3350000A
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United States
Prior art keywords
disc
discs
columns
indentations
rotor
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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
US453940A
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English (en)
Inventor
Wladzia G P Doyle
Collin M Doyle
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Individual
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Individual
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Filing date
Publication date
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Priority to US453940A priority Critical patent/US3350000A/en
Priority to GB18770/66A priority patent/GB1103172A/en
Priority to ES0326252A priority patent/ES326252A1/es
Priority to IL25703A priority patent/IL25703A/xx
Priority to DK228566AA priority patent/DK122860B/da
Priority to NO162873A priority patent/NO120725B/no
Priority to CH656966A priority patent/CH452489A/de
Priority to DE19661532694 priority patent/DE1532694C/de
Priority to BE680673D priority patent/BE680673A/xx
Priority to NL6606216A priority patent/NL6606216A/xx
Priority to FR60602A priority patent/FR1481296A/fr
Application granted granted Critical
Publication of US3350000A publication Critical patent/US3350000A/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
    • B04B5/00—Other centrifuges
    • B04B5/06—Centrifugal counter-current apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0476—Moving receptacles, e.g. rotating receptacles
    • B01D11/048—Mixing by counter-current streams provoked by centrifugal force, in rotating coils or in other rotating spaces

Definitions

  • a centrifugal countercurrent exchange device including a plurality of spaced bands formed with holes arranged to afford radially extending cavities. Elongated disc column members are removably positioned one in each cavity. Each disc column member comprises a rod with a plurality of integrally formed disc-like protuberances spaced apart so that each protuberance is in radial alignment with one of the bands.
  • This invention relates generally to centrifugal countercurrent exchange or contacting devices of the type disclosed in US. Patents Nos. 3,107,218, 3,114,706, and 3,- 132,100. More particularly, the invention relates to improvements in such devices which enable a single standardized device or machine to be readily'adapted for substantially universal use under all conditions of operation.
  • the improvements taught herein, although illustrated in connection with miniature or laboratory sized devices, are equally applicable to full scale countercurrent contacting or exchange devices.
  • disc columns which have discs perforated to effectively vary the dispersal characteristics of a miniature or laboratory type machine.
  • the peripheral indentations are substantially aligned with respective contacting bands and cooperate therewith to define orifices through which liquids can flow in a similar manner as they could through a perforated disc of our aforementioned patents.
  • centrifugal countercurrent contacting or exchange device of the character described, having means for readily varying and-controlling the dispersal characteristics or mixing energy in a miniature or laboratory model.
  • FIG. 2 is an enlarged vertical sectional view of an improved disc column embodying the principles of the invention and showing its relationship to the shaft of a rotor;
  • FIG. 3 illustrates sectional views of the discs in FIG. 2 and it is taken on planes passing through the lines 3-3 in FIG. 2;
  • FIG. 4 is similar to the views taken in FIG. 3 illustrating another arrangement of the discs wherein the peripheral indentations of the discs are illustrated as linearly graduated in an inverse direction with respect to the ones shown in FIGS. 2 and 3;
  • FIG. 5 is a view similar to FIG. 3 illustrating discs with arcuate peripheral perforations and merely showing the outer discs;
  • FIG. 6 is a view similar to FIG. 2 and illustrating still another embodiment of our invention wherein some of the discs have peripheral indentations that are graduated in area, or venturied;
  • FIG. 7 is a sectional view taken along a plane passing through the line 77 in FIG. 6 and illustrating the configuration of one of said venturied discs;
  • FIG. 8 is a sectional view taken along the line 88 in FIG. 7;
  • FIG. 9 is a sectional view similar to FIG. 7 and illustrating a modified disc
  • FIG. 10 is a cross-sectional view of FIG. 6 taken along the line 1010 and illustrating a cross-section of an intermediate disc thereof;
  • FIGS. 11, 12 and 13 are views similar to FIG. 7 and illustrate alternate embodiments for intermediate discs which can be used instead of the ones illustrated in FIGS. 6 and 10;
  • FIG. 14 is an elevational view illustrating a portion of a disc column with a modified disc which can be substituted for the venturied discs in a disc column such as illustrated in FIG. 6;
  • FIG. 15 is a sectional view of FIG. 14 taken on a plane passing through the line 15-15;
  • FIG. 16 is a sectional view of FIG. 15 taken on a plane passing through the line 16-16;
  • FIG. 17 is a view similar to FIG. 7 which illustrates a modified disc with a pair of peripheral indentations that are spiral passageways;
  • FIG. 18 is a side elevational view of FIG. 17 showing the modified disc thereof with relation to a band shown in section;
  • FIG. 19 is a view similar to FIG. 7 which illustrates a modified disc with a diagonal peripheral indentation
  • FIG. 20 is a side elevational view of FIG. 19 showing the modified disc thereof with relation to a band shown in section.
  • FIG. 1 The device thus comprises a shaft 12 suitably journalled for rotation in a conventional supporting structure not shown.
  • a rotor 16 is rigidly connected to the shaft 12 for rotation therewith, and the entire device may be enclosed in any type of removable protective cover.
  • Suitable passageways such as 18 are provided in the shaft 12 for respectively supplying the heavier liquid to the central area of the rotor 16 as illustrated in FIG. 2, and removing the lighter liquid therefrom.
  • suitable passageways (not shown) are provided for respectively supplying the lighter liquid under pressure to the peripheral area of the rotor 16 and removing the heavier liquid therefrom.
  • Communicating with these passageways are passageways 26, provided between the spillover discs 28 as indicated.
  • the contacting or separator bands 32 may be slightly perforated or preferably completely imperforate over the entire area save for a plurality of holes arranged in aligned relationship to afford a series of disc column cavities such as 34, 35.
  • the contacting bands are preferably illustrated as being concentric bands with gradually increased spacing to the outside of the rotor.
  • the disc columns 42 (see FIG. 2) comprise a central rod 41 preferably circular in cross section throughout its length. As seen in FIG. 2, the rod 41 terminates at one end with a threaded portion 41a, and at the other end with a protuberance or bearing disc 45 which abuts against the shaft 12 when in its operative position.
  • the disc column 42 is integrally formed by means of casting or other well known means and the rod 41 therefore has the bearing disc 45 and other disc-like protuberances 46 extending integrally therefrom as illustrated in FIGS. 1 and 2.
  • Each of the discs 46 are preferably formed with a plurality of peripheral indentations 46a and are radially spaced along the rod 41 to substantially align with the bands 32 as illustrated in FIGS. 1 and 4.
  • the discs are sized in diameter to approximate the size of the respective disc column cavities or holes 34, 35 in order that indentations 46a form orifices with the defining edges of the holes or cavities in the bands 32.
  • FIGS. 2 and 3 we illustrate peripheral indentations which have planar surfaces defining the sides thereof. It Will be noted that the indentations are prefarably graduated linearly in cross sectional area from the outside area of the rotor 16 to the shaft as illustrated in FIG. 3.
  • peripheral indentations could be linearly graduated in an inverse direction with the smaller area at the axis and larger area at the outside of the rotor as illustrated in FIG. 4. Still further, it will be noted that the peripheral indentations of adjacent discs are disposed from each other in order that when the liquids flow through the peripheral indentations, they contact the imperforate regions of an adjacent disc.
  • FIG. 5 another embodiment of the disc column 42 is suggested wherein discs 50 with arcuate peripheral indentations 50a are illustrated. Only the inner and outer discs are shown to illustrate that the cross sectional areas of the peripheral indentations 50a can be graduated linearly if formed on a rod as illustrated in either FIG. 3 or 4.
  • the disc columns 42 can be operationally retained in the rotor 16 by moving them through the port holes 16a of the rotor to a position where the bearing discs 45 thereof abut against the shaft 12.
  • threaded plugs 50 are provided for association with the rotor and the threaded portions 41a of the rod 41.
  • the disc columns can be locked into position by merely rotating the plugs 50 to the position illustrated in FIG. 1.
  • a modified disc column 55 as in FIG. 6 which is of similar construction to the aforementioned disc column 42 and it has venturied discs 57 with first and second peripheral indentations 57a, 57b. Each venturied disc has a gradually decreasing area in a downstream direction with respect to the respective liquids flowing therethrough. Also provided in the disc column are intermediate discs 60 interposed between each of the venturied discs 57 as illustrated in FIG. 6. The intermediate discs 60 have peripheral indentations 60a and are positioned so that the liquids flowing through the venturied discs contact the imperforate portions of the intermediate discs and thereafter are forced through the peripheral indentations 60a thereof.
  • the peripheral indentations 57a, 57b are sized differently and they are venturied in opposite directions.
  • the first indentations 5711 are all in substantial radial alignment and have gradually decreasing cross sectional areas in an outward or downstream direction with respect to the heavier liquid being forced radially outward from the shaft 12 of the rotor.
  • the second peripheral indentations 57b are also in radial alignment with each other and are venturied in a downstream direction with respect to the light liquid which is forced under pressure toward the axis 12 of the rotor 16.
  • the peripheral indentations 57b have their larger area facing to the outside of the rotor and each of the areas thereof gradually decrease in an axial or downstream direction.
  • peripheral indentations illustrated in FIG. 6 are shown as being respectively equal for each disc, they could be gradiently graduated as in our disc column illustrated in FIG. 2. Also, by the venturied discs 57 having a greater .thickness than the bands 32, the peripheral indentations 57a, 57b thereof act as orifices or conduits for the liquids flowing therethrough to guide the same into contact with the imperforate regions of the intermediate discs and thereby create better dispersal of the liquids to obviate entrainment.
  • FIGS. 14, 15 and 16 we have illustrated a modified venturied disc 62 which can be used in place of the disc 57 illustrated in our modified disc column 55 in FIG. 6.
  • These discs have projections 62a, 62b extending therefrom in opposite directions and disposed on a quadrant of the discs 180 apart along the periphery thereof.
  • the projections 62a, 62b respectively have first and second venturied peripheral indentations 63, 64 therein, and the indentations are formed through the discs and projecting portions so that the cross sectional areas thereof decrease in the direction of extension of the projections.
  • the modified venturied discs 62 also can have arcuate peripheral indentations 65, 66 formed 180 apart at the other quadrant thereof. These peripheral indentations are not venturied and have the same effect as the ones illustrated in FIG. 2.
  • discs having different types of peripheral indentations formed therein can take on several different configurations.
  • FIG. 13 we show another modified disc 66 having truncated projections 67 extending therefrom and defining the peripheralindentations 67a therebetween with the planar sides thereof.
  • FIG. 11 we show another modified disc 70 having arcuate peripheral indentations 70a formed therein around the periphery thereof.
  • FIG. 12 we show another modified disc 72 which has several small peripheral indentations 72a formed therein in a similar manner to the discs illustrated in FIGS. 6 and 10.
  • FIGS. 13 we show another modified disc 66 having truncated projections 67 extending therefrom and defining the peripheralindentations 67a therebetween with the planar sides thereof.
  • FIG. 11 we show another modified disc 70 having arcuate peripheral indentations 70a formed therein around the periphery thereof.
  • FIG. 12 we show another modified disc 72 which has several small peripheral indentations 72a formed therein in a similar
  • disc structures'74 and 75 that have peripheral indentations formed thereon which extend diagonally along the periphery thereof instead of radially as in the other discs.
  • the discs 74 have a pair of peripheral indentations 74a and 74b which are in the form of spiral passageways extending diagonally along the periphery and communicating with both sides of the contacting bands when they are aligned therewith as illustrated in FIG. 18.
  • the disc 75 merely has one peripheral indentation extending diagonally therealong in the form of a spiral passageway 75a which communicates with both sides of a separator band as illustrated in FIG. 20.
  • FIG. 9 we show an example of a disc having substantially rectangular peripheral indentations 80a of long length formed therein.
  • a countercurrent exchange device including a novel and improved disc column which is suitable for miniature or laboratory devices and it fulfills the other stated objects of our invention in a remarkably unobvious and unexpected fashion.
  • the discs of our new disc columns have peripheral indentations to serve as orifices with the bands and thus obviate the necessity for forming perforations therein. Also, our new disc columns prevent entrainment by causing the liquids flowing therethrough to collide with an imperforate portion of an adjacent disc.
  • venturied peripheral indentations we have provided a means for both guiding the flowing liquids against an adjacent disc and increasing the velocity of the liquids as they flow through the venturied indentations.
  • the venturied indentations in being graduated in size in a downstream direction with respect to the respective liquids flowing therethrough bring about such an effect.
  • a centrifugal countercurrent exchange device including a rotor, a plurality of spaced bands positioned in said rotor, said bands being formed with holes arranged to afford a plurality of radially extending cavities, integrally formed disc columns removably positioned in said cavities, each of said disc columns comprising a rod with a plurality of integrally formed radially spaced protuberant discs arranged so that each disc is in radial alignment with a respective band, means for removably retaining said columns in said holes, each of said discs being sized to approximate the size of a respective hole of said respective band, at least some of said discs being formed with peripheral indentations in order that the peripheries of said discs form orifices with the defining edges of the holes in said bands, said disc columns being interchangeable with other disccolumns whereby different conditions of dispersion may be obtained within said rotor by interchanging said disc columns with other disc columns which have integrally formed discs with different dispersal characteristics.
  • a centrifugal countercurrent exchange device as defined in claim -1, wherein said indentations of each of said discs are linearly graduated in size from one end of said disc column to the other.
  • a centrifugal countercurrent exchange device including a cylindrical rotor having an axial shaft, a plurality of radially spaced concentric contacting bands positioned in said rotor, said bands being formed with holes arranged to afford a plurality of radially extending cavities, one in alignment with the other, integrally formed disc columns removably positioned in said cavities, each of said disc columns comprising a rod with a plurality of integrally formed radially spaced protuberant discs arranged so that each disc is in radial alignment with a respective band, a plurality of portholes formed in the outer cylindrical wall of said rotor, one in alignment with the other, a plug removably positioned in each of said portholes, said disc columns being removably associated with said plugs in order that said columns are removably retained in said holes, each of said discs being sized to approximate the size of a respective hole of said respective band and being arranged in radially spaced relationship in order that one of said discs is in alignment with
  • a centrifugal countercurrent exchange device as defined in claim 3, wherein said indentations of each of said discs are linearly graduated in size from one end of said disc column to the other.
  • a centrifugal countercurrent exchange device including a rotor, a plurality of spaced bands positioned in said rotor, said bands being formed with holes arranged to afford a plurality of radially extending cavities, disc columns removably positioned in said cavities, each of said disc columns comprising a rod with a plurality of integrally formed radially spaced protuberant discs arranged so that each disc is in radial alignment with a respective band, means for removably retaining said columns in said holes, each of said discs being sized to approximate the size of a respective hole of said respective band, at least some of said discs being formed with peripheral indentations in order that the indentations of said discs form orifices with the defining edges of the holes of said bands, each said peripheral indentation having a graduated cross section that decreases in a downstream direction with respect to the respective liquids flowing therethrough in order that said flowing liquids contact an adjacent disc for dispersal, said disc columns being interchangeable with other disc columns whereby any
  • a centrifugal exchange device as defined in claim 5, wherein each of said peripheral indentations decrease in the same direction with the larger cross sectional area portions of said indentations being all on one side of said discs and the smaller cross sectional area portions of said indentations being all on the other side of said discs.
  • a centrifugal exchange device as defined in claim 6, wherein said some discs have venturied arcuate surfaces defining said peripheral indentations.
  • peripheral indentations consist of at least one diagonal passageway extending along the periphery and communicating with both sides of said bands.
  • a centrifugal exchange device as defined in claim 5, wherein said some discs have at least a pair of indentations identified as first and second, each of said first indentations being in substantial radial alignment and having gradually decreasing cross sections in a downstream direction with respect to one of said liquids flowing therethrough,each of said second indentations being in substantial radial alignment and having gradually decreasing cross sections in an opposite direction with respect to said first indentations whereby said second indentations have gradually decreasing cross sections downstream with respect to the other liquid flowing countercurrent to said one liquid.
  • each of said first peripheral indentations have the larger cross sectional area portions all on one side of said discs and the smaller cross sectional area portions of said indentations all on the other side of said discs, and said second peripheral indentations have gradually decreasing cross sectional areas with the larger cross sectional area portions all located on the opposite side of said discs with respect to said larger cross sectional areas of said first indentations.
  • a centrifugal countercurrent exchange device for processing liquids including a rotor, a plurality of spaced bands positioned in said rotor, said bands being formed with holes arranged to afford a plurality of radially extending cavities, members for controlling the flow of liquids through said device removably positioned in said cavities, each of said members comprising a rod having reduced diameter portions spaced apart to define a plurality of disc-like protuberances, each of said protuberances positioned in radial alignment with one of said bands, whereby the droplet dispersal characteristics of the device may be controlled, and means for retaining said members in said cavities.
  • centrifugal countercurrent exchange device of claim 12 in which said protuberances are formed with peripheral indentations, said indentations and the adjacent wall portions of the holes in said bands forming orifices through which said liquids flow, said members being interchangeable with other members having different indentations whereby the droplet dispersal characteristics of the device may be varied.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Centrifugal Separators (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
US453940A 1965-05-07 1965-05-07 Integral gradient removable disc columns Expired - Lifetime US3350000A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US453940A US3350000A (en) 1965-05-07 1965-05-07 Integral gradient removable disc columns
GB18770/66A GB1103172A (en) 1965-05-07 1966-04-28 Integral removable disc columns
ES0326252A ES326252A1 (es) 1965-05-07 1966-05-02 Dispositivo mejorado de intercambio por contracorriente centrifuga.
DK228566AA DK122860B (da) 1965-05-07 1966-05-04 Modstrømsekstraktionscentrifuge.
NO162873A NO120725B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1965-05-07 1966-05-04
CH656966A CH452489A (de) 1965-05-07 1966-05-04 Gegenstrommischzentrifuge mit Scheibenkolonnen
IL25703A IL25703A (en) 1965-05-07 1966-05-04 Centrifugal counter current exchange device
DE19661532694 DE1532694C (de) 1965-05-07 1966-05-05 Misch- und Trennzentrifuge
BE680673D BE680673A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1965-05-07 1966-05-06
NL6606216A NL6606216A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1965-05-07 1966-05-06
FR60602A FR1481296A (fr) 1965-05-07 1966-05-06 Colonne de disques amovibles pour dispositif centrifuge d'échange à contre-courant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US453940A US3350000A (en) 1965-05-07 1965-05-07 Integral gradient removable disc columns

Publications (1)

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US3350000A true US3350000A (en) 1967-10-31

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US453940A Expired - Lifetime US3350000A (en) 1965-05-07 1965-05-07 Integral gradient removable disc columns

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US (1) US3350000A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE680673A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH452489A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (1) DK122860B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES326252A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1103172A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IL (1) IL25703A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL6606216A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO120725B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107218A (en) * 1960-05-09 1963-10-15 Collin M Doyle Rotating column contact device
US3114706A (en) * 1961-11-01 1963-12-17 Wladzia G Podbielniak Centrifugal countercurrent exchange device with interchangeable disc columns
US3116246A (en) * 1961-12-08 1963-12-31 Wladizia G Podbielniak Centrifugal multi-chamber counter current exchange device with removable disc columns
US3132100A (en) * 1961-11-27 1964-05-05 Wladzia G Podbielniak Disc columns for centrifugal countercurrent exchange devices

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107218A (en) * 1960-05-09 1963-10-15 Collin M Doyle Rotating column contact device
US3114706A (en) * 1961-11-01 1963-12-17 Wladzia G Podbielniak Centrifugal countercurrent exchange device with interchangeable disc columns
US3132100A (en) * 1961-11-27 1964-05-05 Wladzia G Podbielniak Disc columns for centrifugal countercurrent exchange devices
US3116246A (en) * 1961-12-08 1963-12-31 Wladizia G Podbielniak Centrifugal multi-chamber counter current exchange device with removable disc columns

Also Published As

Publication number Publication date
IL25703A (en) 1969-11-12
DE1532694A1 (de) 1971-09-16
ES326252A1 (es) 1967-03-01
NO120725B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1970-11-23
CH452489A (de) 1968-05-31
DK122860B (da) 1972-04-24
GB1103172A (en) 1968-02-14
BE680673A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-11-07
NL6606216A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1966-11-08

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