US2081406A - Method for concentrating and separating the components of gaseous mixtures - Google Patents

Method for concentrating and separating the components of gaseous mixtures Download PDF

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Publication number
US2081406A
US2081406A US722997A US72299734A US2081406A US 2081406 A US2081406 A US 2081406A US 722997 A US722997 A US 722997A US 72299734 A US72299734 A US 72299734A US 2081406 A US2081406 A US 2081406A
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United States
Prior art keywords
components
mixture
separating
rotation
concentrating
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Expired - Lifetime
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US722997A
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English (en)
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Mazza Edoardo
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Individual
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Individual
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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
    • B04B5/08—Centrifuges for separating predominantly gaseous mixtures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S494/00—Imperforate bowl: centrifugal separators
    • Y10S494/90—Imperforate bowl: centrifugal separators involving mixture containing one or more gases

Definitions

  • a stratification both in radial and axial direction is produced in the mixture so that the various components may be separated and conveyed to different places.
  • An important feature of this invention con-' sists in the fact that the mixture is constantly maintainedin dynamic balance during the concentration and separation of the components of the mixture.
  • the concentration may be intensified by causing the gaseous mass under treatment to pass successively through diflerent conditions of dynamic balance, for instance by varying the general composition of the mixture by successively subtracting parts of the mixture of already modified composition, so that new conditions of dynamic balance are generated and the action ofthe centrifugal force is gradually varied.
  • This invention has further for .its'object a simple, efiicient and compact apparatus for carrying out the above described method.
  • Said apparatus is substantially constituted by i a drum rotating on a vertical axis and comprising an annularchamber concentric to the drum axis divided into compartments by means of radial partitions conveniently curved in the way of lmpeller'blades.
  • Eaclrof thsecompartinents is in communication with the interior of the drum through a supply opening in proximity to the concave face of the partitions and with the atmosphere through two delivery openings, the lower one of which is provided between the two partitions and the upper one in proximity to the convex face of the partitions.
  • 'A partition (classifying device) is arrangedbetween the delivery openings and extends from the edge of 5 the inner opening to the wall of the outer cylinder.
  • Said partition is provided with passages for the separated. components placing into com-v munication thesupply section with the delivery section of each compartment; the distance of said passages from the center increasing from the supply towards the delivery end.
  • a classification of the components is thus obtained: the heavier com- 10 ponents are collected at the periphery of the supply section where they descend by gravity and are discharged to the outside through an opening provided near .the bottom while the* lighter components are collected in the upper 15 part of the supply section and are conveyed by suction through the passages into the delivery section and are subsequently discharged to' the outside through the upper opening.
  • the delivery section may be sub- 25 divided by means of suitably arranged partitions in as many chambers as there are passages for the separated components; said chambers may communicate with the outside at different places,
  • Fig. 1 is an axial section of the apparatus.
  • the upper half of Fig. 2 shows a'section on line A--A of Fig. ,1 and the lower half a section on line 3-3 of Fig. 1.
  • I is a container in 40 which is rotatably mounted on a vertical axis a classifying drum constituted by a bottom 2, a cover ,3, an outer cylindrical wall 4 and an inner I cylindrical wall 5. All these parts are'mounted on a vertical shaft '6 supported-by a bearing 1 46 compartment and, with the'inslde' ot-the conthe bottom 2 and an opening II in proximity to the cover 3 and to the convex face of the other partition 8 forming the compartment.
  • the delivery openings H and I2 for the concentrated gases are provided on the wall edges and are of the lowest possible width in the direction parallel to the axis of rotation whiletheir width in the direction perpendicular to said axis is sumcient to permit the full discharge of the concentrated gases without creating highly objectionable counter pressures. It has been found that the highest efliciency is obtainedby reducing the edge of said openings to the lowest possible thickness allowed by the strength of the material.
  • Y I In each compartment is mounted, parallel to the axis of rotation, a row of columns I 3 extending from the edge of the opening I0 opposite to the adjacent partition 8, to a point of the outer wall between the openings H and I2. Said columns are so shaped as to form staggered passages .ll arranged at increasing distances "from the axis rof rotation each being formed by .moments of the rotating parts.
  • the passages ll place the supply section I5 in communication with the delivery section l6.
  • the supply chamber 9 projects from the container l and ends in an enlarged part having the form of a.plate l'l carrying the suction and force blades I 8 keyed to the shaft 6.
  • the container i is subdivided in two superposed chambers I9 and 20 separated from each other by an annular horizontal partition 2
  • the delivery sections i6 communicate through theopenings II with the chamber l9 provided with a discharge nipple 22 and the supplysections 15 com- ,municate with the chamber '20 provided with a discharge nipple 23 through the' openings l2. when more than two components of the mixture are to be obtained the number of rings 25,
  • the center 'of' gravity should coincide with the intersection of the axis of rotation with the support plane of said rotating mass in order that the gyroscopicaction of the rotating mass (constituted by the classifying rotating drum, plate I! and blades l8) be of full efllciency; therefore the shaft 6 extends under the bearing 1 r and at its lower end is keyed a fly-wheel 24 of ponents, the separating rotating drum is set into rotation.
  • the blades ll effect the suction of the mixture and press and convey this'latter into the supply chamber, from which through the openings it it is' distributed to the supply sections I! of the various compartments.
  • this method and apparatus for concentrating and separating gaseous mixsaid masses about a common vertical axis thereby forming strata of progressively increasing specific gravity from the axis of rotation, withdrawing portions of the lighter constituents in a centripetal direction from each of said segmental gaseous masses along. a plurality of restricted circumferentially spaced and substantially radial paths, progressively more remote from the axis of rotation and separately withdrawing heavier constituents from the lower portion and lighter constituents from the upper portion of each of the masses whereby centrifugal force, gravity and the difference in the molecular velocities of the constituents are utilized to concentrate the mixture into fractions enriched in lighter and heavier constituents.

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  • Centrifugal Separators (AREA)
  • Combined Means For Separation Of Solids (AREA)
US722997A 1933-05-05 1934-04-28 Method for concentrating and separating the components of gaseous mixtures Expired - Lifetime US2081406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT423003X 1933-05-05

Publications (1)

Publication Number Publication Date
US2081406A true US2081406A (en) 1937-05-25

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US722997A Expired - Lifetime US2081406A (en) 1933-05-05 1934-04-28 Method for concentrating and separating the components of gaseous mixtures

Country Status (4)

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US (1) US2081406A (de)
BE (1) BE402961A (de)
DE (1) DE659083C (de)
GB (1) GB423003A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525629A (en) * 1947-06-07 1950-10-10 Merco Centrifugal Co Centrifuge construction
US2669974A (en) * 1947-12-23 1954-02-23 Johnsen Carsten Ingeman Apparatus for treating gaseous and fluidized powder streams
US3299616A (en) * 1963-03-14 1967-01-24 Centre Nat Rech Scient Molecular separation of gaseous mixtures
US4071336A (en) * 1974-01-21 1978-01-31 Yamine Anthony S Gas and vapor separator
US4545792A (en) * 1983-02-28 1985-10-08 Condair Ag Device and process for precipitating foreign matter from a gas stream
US5720705A (en) * 1988-11-08 1998-02-24 Alfa-Laval Separation Ab Method for freeing a liquid from a substance dispersed therein and having a larger density than the liquid

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525629A (en) * 1947-06-07 1950-10-10 Merco Centrifugal Co Centrifuge construction
US2669974A (en) * 1947-12-23 1954-02-23 Johnsen Carsten Ingeman Apparatus for treating gaseous and fluidized powder streams
US3299616A (en) * 1963-03-14 1967-01-24 Centre Nat Rech Scient Molecular separation of gaseous mixtures
US3320722A (en) * 1963-03-14 1967-05-23 Ct Nat De La Recherche Molecular fractionation of gaseous mixtures
US4071336A (en) * 1974-01-21 1978-01-31 Yamine Anthony S Gas and vapor separator
US4545792A (en) * 1983-02-28 1985-10-08 Condair Ag Device and process for precipitating foreign matter from a gas stream
US5720705A (en) * 1988-11-08 1998-02-24 Alfa-Laval Separation Ab Method for freeing a liquid from a substance dispersed therein and having a larger density than the liquid
US5733239A (en) * 1988-11-08 1998-03-31 Alfa-Laval Separation Ab Plant for freeing a liquid from a substance dispersed therein and having a larger density than the liquid

Also Published As

Publication number Publication date
DE659083C (de) 1938-04-25
BE402961A (de)
GB423003A (en) 1935-01-23

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