US1761593A - Centrifugal treatment of substances - Google Patents

Centrifugal treatment of substances Download PDF

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Publication number
US1761593A
US1761593A US174975A US17497527A US1761593A US 1761593 A US1761593 A US 1761593A US 174975 A US174975 A US 174975A US 17497527 A US17497527 A US 17497527A US 1761593 A US1761593 A US 1761593A
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liquid
bowl
centrifugal
solid particles
compartment
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US174975A
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English (en)
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Laurence P Sharples
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Sharples Specialty Co
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Sharples Specialty Co
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Priority to BE349605D priority Critical patent/BE349605A/xx
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Priority to US174975A priority patent/US1761593A/en
Priority to GB7502/28A priority patent/GB287056A/en
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Publication of US1761593A publication Critical patent/US1761593A/en
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    • 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
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor
    • 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
    • B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
    • 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
    • B04B11/08—Skimmers or scrapers for discharging ; Regulating thereof
    • B04B11/082—Skimmers for discharging liquid

Definitions

  • This invention relates to a centrifugal process and apparatus and particularly to a process and apparatus wherein solid particles are centrifugally separatedfrom mixtures thereof'with liquids.
  • solid particles are centrifugally' separated from liquids by sedimentation under the action of centrifugal force with the consequent formation of a cake "or layer of solid particles and the liquids are drained from that cake or layer by centrifugal force.
  • a cake or layer of'solid particles that has been so produced by sedimentation under the influence of centrifugal force, and which has or has not' been previously so drained of liquid by centrifugal force, may be centrifugally washed or otherwise centrifugallytreated with liquid while under the influence of centrifugal force.
  • a cakeor layer of solids produced by sedimentation under the action of centrifugal force may be removed from centrifugal "mechanism that is capable of so forming it and that is capable of draining liquids from it centrifuge-11y and that may be capable of subjecting such cake to Washing brother treatment by liquids under centrifugal force, by'an auxiliary tool, preferably without change of speed of rotation of the centrifugal mechanism.
  • mixtures of liquids and solids which mixtures are of a wide range of characteristics and proportionsbut particularly mixtures in which the solid constituent of the mixture is in fine particles and constitutes a small percentage of the mixture, are introduced into an imperforate centrifugal bowl and subjectedto the action of centrifugal force to separate the solids from the liquids by sedimentation and to form a layer or cake of solids'in the bowl.
  • the liquid may be removed fromthe bowl by being centrifugally discharged therefrom over a weir or by being skimmed out.
  • the bowl in which the cake is so formed is provided with means whereby a liquid may be centrifugally drained from the cake.
  • a liquid may be centrifugally drained from the cake.
  • the cake may be so formed in a compartment of the centrifugal bbwhwhich compartment is separated from the remainder of the bowl by a perforated partition, and the liquid is removed, as
  • a cake that has been so formed may, with or without'preliminary employment of the draining or'straining step above described, be subjected to centrifugal washing or other centrifugal treatment with liquid, while under the action of centrifugal force, in various ways.
  • liquid may be withdrawn from the compartment in which the cake is formed andreintroduced-into the other compartment of the bowl, or vice versa or a liquid of desired characteristics may be introduced into the compartment of the bowl in which the cake is not formed and removed from the other compartment of the'bowl or vice 'versa; and other variations of the liquid-washing or liquid-treating operation 'are described herein or will be apparent tothose using my invention.
  • the liquid through the cake in a radially inward or a radially outward direction or in the general direction of the axis of rotation.
  • the liquid may be introduced to the cake at any point and withdrawn there from at a p'oin't'o'pera tively remote from the point of introduction;
  • a newly formed cake' may be washed with liquid that hasbeen used for a l:econd washing of a previously "formed ca e.
  • An important advantage of my invention resides'in thefact'that the eifectiveness of a washing'or treating of the cake with liquid is Such variations include passing greatly increased because the residual liquid of the cake is reduced to a relative low proportion of the cake in the centrifugal straining or draining operation as compared with the proportion of water remaining in a body of the same solids after mere gravity draining or common mechanical squeezing.
  • Fig. 1 is an elevation of apparatus embodying my invention and whereby my process may be practised.
  • Fig. 2 is a sectional view generally on the line 22 of Fig. 1.
  • Fig. 3 is a sectional view, with parts broken away, of a modification.
  • Fig. 4 is a sectional View, with parts broken away, of a modification.
  • Fig. 5 is a partial sectional view on the line 55;
  • Fig. 6 is a detail view.
  • an imperforate centrifugal bowl 10 is mounted for rotation upon a shaftll that is supported in bearings 12 and is provided with a pulley 13 or similar driving element.
  • a perforate or pervious partition or screen 14 that is spaced from the inner wall of bowl 10 and is held in spaced relation therefrom by a spacing member 15, a convenient form of which is a woven wire screen or fabric, that will permit free flow of liquid between screen 14 and bowl 10.
  • Screen 14 may be of any suitable form so long as it holds back solid particles to a desired degree.
  • a disk 16 that extends radially inward from partition 14 and forms with the end of bowl 10 a compartment that is usually a liquid compartment 18 and which forms with the space between screen 14 and the inner wall of the bowl, an auxiliary compartment.
  • a partition 17 that extends radially inward from screen 14 and forms with said other end of the bowl a compartment 19.
  • a plate having a conical portion 21 and a disk-like portion 22. This plate extends in spaced relation with the hub 20 and the plate 19 to provide a supply passage 24 into which substances are introducedthrough pipe 23. Extending radially within supply passage 24 are wings 25 which ensure that substances introduced into supply passage 24 will attain substantially the speed of the bowl by the time they pass from supply passage 24 into the bowl proper. Supply passage 24 leads into the main separating compartment 26 of the bowl, which lies between partitions 16 and 17 and radially inward of screen 14.
  • the bowl being imperforate a mixture of solid particles with liquid, when introduced through supply 23, is separated by sedimentation or subsidence into a layer of solid particles and a layer of liquid, as compared with the separation which occurs in a perforate centrifugal shell in which the solid is retained in such perforate shell and the liquid is thrown out through the perforations in a straining or draining operation. While the mixture is being supplied to bowl 10, the bowl will fill up until the inner surface of the liquid, when the solid is heavier than the liquid, lies at or radially outward of the inner edge of partition 16 and a layer or zone of solid particles will form on screen 14.
  • clear liquid may be skimmed from the surface of the liquid in the main compartment 26 by a skimmer 27; and this operation proceeds until a suitable body of solid particles has been collected in the bowl by centrifugal subsidence.
  • partition 17 since partition 17 does not engage the inner wall of the bowl 10 and liquid will assume the same level in the compartment 18 that it assumes in compartment 26, liquid may be skimmed from compartment 18 by skimmer 28; but usually clearer liquid is obtainable from the inner surface of liquid in the main compartment.
  • skimmer 28 may IKE-615E913 be m ved, successiv y t radial y ou er no it-ions thereby w hd awi g are and ner liquid fr m the bowl with the re ult; that; a bedy f.
  • soli par icles is ubjected to c ntrifugal draini g e training: Wi hout in erption f; the i luence of centrifug l for ey ak ng e 1 has e-coni al in fer-n skimmer- 28 will skim liquid from a point.
  • radially outward of any part of the body of li s-t Oth r bowl formatien may e pl yecl to accomp i h he same purp sehdjus abi-l-i y f he. al di tanc of himmers 2 a d 28.
  • rom he bo xis is h: tained by mounting the skimmersslidably in b eok ts; 3 0 a d providing hem ith lugs 31 hrough hi h is th a ed a shaft- 32 hat mounted i r rotation in bracke s and held again t l ngitudi a m ion there n by eeller By r ne, S af by me ns of hand Wheel 34k, lug 3:1 is moved longitudinally of the shaft 32. andh kimm r to hich l g 3,1 is, attached is adjusted at desired radial dis; tance from. th a is.
  • T kim r may ha ny s ta le c stru ti n and m y b provided with nozzles 35, it being understood h t th owl rotat s in the. di ecti o the arrow in igu e 1, 5 and .1 After a cake r layer s l d.
  • P rt cles has een produced y a centr fugal ed ment ien, and, if desired, after su h a cake has been centrifugal y dr in the cake may be trea ed with, hqui o ui able, c aracterist c r a hed hile ill underthe ac n of c ntrifug l for e.
  • liquid may be supp i by p pe- 37 and d s: har th gh n zzle 36 i to c mpar ment 1
  • sur ounding openings 2 is annu ar ro gh nd in th t annul r tr ugh liquid maybe introduced y pipe 4 whe eup n it will pass into compartment 19 and into the space betw en screen 14; a th inner w of he bowl- By sk mming quid u f h m in ompar ment 25, by m an of skimmer 2?, liq i intro uced eith r into compare meat 18 er mpar m n s cause e p ss radia ly inward through the body of solid particles by c ntrifugal sub iden e and is kimmed bi y means o skimmer .2 nder ontrol of val e a liqu d skimmed from main ompartment 26 by skimmer '27 may be pa se h ough flexib e pipe 6
  • liquid withdrawn from one compartment may be reintroduced into another compartment to eflect continuous Washi g o ea m n nder the inf ence of centrifugal force by the same body of liquid. Moreo it th re re no Wingsin comp r men 1% iqui n u e th te Will n t l g behind h t g b wl and in p s ng through the space between screen 14 and the nn w l o h o l, ill u h o tha spaei D cont nu nce.
  • f s pply to t ebow dra n ng r o may e. arried ou at any ime during cake f rm ng or w sh ng operatio s,
  • an auXilT iar-y tool 5a is so constructed and mounted as to dislodg the s li part le and to us them to drop into a hopper 55 positioned within casing 50 and extending into bowl 10, the solid Pa i es di ha gi g thro gh p l ltb t
  • a tool support 58 x ends. h eugh a open ng in ca 50 and is held in place therein by bolts 57.
  • the tool support 58 comprises a bearing support: ing an internally threaded bar 59 on which is mounted tool 54.
  • a cylindrical memher 60 Surrounding an outward extension of support 58 is a cylindrical memher 60 provided with a sli es a lug 62 ie by t 58, her y y lindrical member 60 and bar 59 are caused to rotate together and bar 59 is permitted to move longitudinally in member 60.
  • Cylindrical member 60 carries a worm gear 63 that s engaged by a W m 6 m te n a et 65 and operated by hand wheel 66
  • rotatieu of member 60 will, as ho n in .Fis: 5
  • bracket member 67 Fitting into the outer end of cylindrical member 60 is a bracket member 67 that is supported from the casing 50, and passing through bracket member 67 is a threaded shaft 68 that is held against axial movement by collars 69 fiXed thereto. Shaft 68 is threaded into bar 59 and when rotated by hand wheel 70 tool 54 is caused to move back and forth along the face of the cake in bowl 10.
  • solid particles While solid particles are still under the influence of centrifugal force they may be withdrawn from a bowl that is so constructed as to form a cake by sedimentation and to drain the cake and to permit of its washing or other treatment with liquid.
  • the withdrawal of liqu d from the main compartment 26 of bowl 10 is effected by passing the liquid over a weir and discharging it from the bowl 10.
  • the annular partition 16, which divides the main compartment 26 from compartment 18 extends from the screen 14 to a point radially inward of the edge 60 of the adjacent end of bowl 10 so that l quid would pass around the outside of partition 16 and over the edge 6O but it could not pass over the inner edge of partition 16 and over the top of the liquid in compartment 18 and then overthe edge 60 as is possible in the construction shown in Figure 2.
  • An annular member 61 of angular cross-section is carried by partition 16 and forms with it a trough, the edge 62 of which constitutes a weir that fixes the radial position of the surface of liquid in compartment 26. Liquid flowing over weir 62 is centrifugally discharged from the bowl through tubes 68 that pass through the shell of bowl 10. During the separation of solid particles from a liquid by sedimentation, liquid will pass over weir 62 and through pipe 63 into casing and may be withdrawn therefrom by pump 51 and passed through pipe 52-.
  • Centrifugal draining of the body of solid particles may be effected by skimming liquid from compartment 18 by advancing the end of skimmer 28 from position A to position B at which latter position it skims liquid from substantially the radially outermost point of the interior of the bowl.
  • ashing of the cake may be effected by passing liquid supplied by pipe 37 either into compartment 18 through nozzle 86 or into compartment 19 through pipes 46 and 44-.
  • Washing may be effected by passing liquid collected in casing 50 through pipes 46 and 37 and nozzle 36 into compartment 18 or by pipe 44 into compartment 19. In washing operations liquid may be supplied through nozzle 36 and pipe 44 at the same time. Washing liquid may also be introduced through supply nozzle 23.
  • skimmer 28 could be used for removing liquid during the building up of the cake by sedimentation or for removing, washing, or treating liquid. If washing or treating liquid is introduced into compartment 18 or compartment 19 or into both of those compartments and passed out over weir 62 the washing liquid passes radially inward by sedimentation through the layer of solid particles. If washing liquid is introduced through supply nozzle 23 and withdrawn from compartment 18 it passes radially outward by sedimentation through the layer of solid particles in the bowl. Obviously weir 62 must lie radially outward from edge of the end of the bowl.
  • the imperforate centrifugal bowl 10 which in all modifications shown is of the type wherein separation is effected by sedimentation, is provided with a perforate or pervious partition 16 extending radially inward from the inner wall thereof and forming with the end of the bowl a compartment 18 leaving the remainder of the bowl as a main compartment 26.
  • Partition 16 preferably consists of plate 64 having relatively large perforations and a screen 65 having perforations or porosity of desired magnitude and an intermediate spacing member 66 which may conveniently consist of a sheet of woven wire screen that will permit circulation of liquid between plate 645 and screen 65*.
  • skimmer 27 may act upon the surface of liquid in the bowl at different points, and in the construction shown in Figure 4 skimmer 27 is shown as acting upon the liquid at the opposite end of the bowl from the point at which skimmer 28 is located.
  • the operation whereby a cake is formed by sedimentation in the construction shown in Figure 4: will be obvious from the foregoing description of the operation of my invention, and in the washing of such a cake fresh liquid or previously used wash liquid may be introduced by nozzle 36 into compartment 18 and withdrawn by skimmer 27 Washing liquid may be introduced through supply nozzle 23 and withdrawn by skimmer 28. Draining of the cake can be effected by adjusting skimmer 28 from position A to position B.
  • Other operations of the construction shown in Figure t will be apparent from the foregoing description.
  • the solid particles may be lighter than the liquid and the cake formed will float upon the surface of "the liquid and will recede to'the screen 14 or to the inner wall of the bowl 1O in the centrifugal draining operation; and in the washing of such a floating cake the wash liquid will preferably be supplied to the surface thereof and be withdrawn from a vradially outward point thereof.
  • My invention is capable of generalapplication and is well adapted to the extracting of water soluble substances from malt and t0 the recovery of the yeast from its mixture with solid particles.
  • the process comprising subjecting a mixture of liquid with solid particles to the action of centrifugal force and thereby separating the liquid from the solid particles by sedimentation and retaining the solidparticles underthe influence of centrifugalforce and thereby formingia cake-ofsolid particles, then withdrawing liquid from a radially out- Ward point of the material under the influence "of centrifugal force and thereby draining the cake,'and treating the solid particles with liquid whilethe solid particles are still under the influence of centrifugal force.
  • the process comprising subjecting a mixture of liquid with solidlparticles to the action of centrifugal force and thereby separating'the liquid "from the solid particles by sedimentation and centrifugally discharging the liquid while retaining the solid particles under the influence of centrifugal force and thereby forming a cake ofsolid particles,:supplying treating liquid to one point of the solid particles and withdrawing it frorn'the solid particles at a point remote "from said first named *point while the solid particles are under the influence of centrifugal force.
  • the process comprising subjecting a mixture of liquid with solidgparticlesi'toth'e action of centrifugal force and'by centrifugal sedimentation separating the liquid from the solid particles while preventing discharge of liquid from a ra'dially outward point of'the material under the influence of centrifugal force, and thereafter centrifugally'draining the liquid from'the'solid particles.
  • the process comprising subjecting a mixture of liquid with solid particles to the action of centrifugal force and by centrifugal sedimentation separating the liquid from the solid particles, thereafter centrifugally draining the liquid from the solid particles, andtr'eating'the drained solid particles with 'li quid while the solid particles are still under the influence of centrifugal force.
  • the process comprising subjecting a mixture of liquid with solid particles to the actionof cenftri fugal force and by centrifugal sedimentation separating the solid particles from the liquid and thereby forming a cake stationary "in the direction of the axis of rotation, and while the solid particles are still under the influence ofcentrifugal force introducing treating liquid to the solid 'particlesat one point thereof, withdrawing the liquid from "the solid particles at 'a point remote from said first named point, and reintroducing the treating liquid to "the solid p articles at substantially said'pointof introduction.
  • the process comprising subjecting a mixture of liquid with solid'particlesto the action-of centrifugal force and by 'centrifi rgal subsidence separating the liquid from the solid particles while preventing discharge of liquid from :a radially outward "point of the material under the infiuence of centrifugal force, thereafter eentrifugally draining the solid particles while-still under the influence of centrifugal force, and thereafter withdrawing the solid particle's from the influence of centrifugalforceby an auxiliary tool.
  • the process comprising introducing the mixture into the influence of centrifugal force and thereby separating the liquid from the solid particles by centrifugal subsidence while preventing discharge of liquid from a radially outward point of the material under the influence of centrifugal force, thereafter centrifugally draining the solid particles in the centrifugal bowl, and thereafter removing ⁇ )he plrained solid particles from the rotating 10.
  • the process comprising maintaining solid particles under the influence of centrifugal force and stationary in the direction of the axis of rotation, and while the solid particles are still under the influence of centrifugal force introducing a treating liquid to one point thereof and removing the treating liquid from the solid particles at another point thereof.
  • the process comprising continuously introducin the mixture into the influence of centrifugal force and separting the liquid from the solid particles by centrifugal subsidence while centrifugally discharging liquid from only a radially inward point of the material under the influence of centrifugal force until a desired quantity of solid particles has been collected, and thereafter centrifugally draining the solid particles.
  • the process comprising continuously introducing the mixture into the influence of centrifugal force and separating the liquid from the solid particles by centrifugal subsidence while centrifugally discharging liquid from the material under the influence of centrifugal force until a desired quantity of solid particles has been collected in the rotating bowl, and then withdrawing liquid from a radially outer point of the rotating material and thereby centrifugally draining the solid particles.
  • the process comprising introducing a mixture of liquids and solids into the in fluence of centrifugal force and by sedimentation producing a cake of the solids, and passing a treating liquid by centrifugal sedimentation through the cake of solid particles and withdrawing the treating liquid from the influence of centrifugal force while maintaining said solids under the influence of centrifugal force.
  • the process comprising introducing a mixture of liquids and solids into the influence of centrifugal force and by sedimentation producing a cake of the solids, and passing a treating liquid by centrifugal sedimentation radially through the cake of solid particles and Withdrawing the treating liquid from the influence of centrifugal force while maintaining said solids under the influence of centrifugal force.
  • the process comprising maintaining a body of solid particles under the influence of centrifugal force and substantially stationary in the direction of the axis of rotation, and while said particles are still under the influence of centrifugal force passing a treating liquid by centrifugal sedimentation radially inward through the body of solid particles by introducing a treating liquid to one point of said body andv removing the treating liquid from a radially inward point thereof.
  • an imperforate bowl mounted for rotation, a pervious partition within the bowl and dividing it into a main compartment and an auxiliary compartment, means for introducing into said main compartment a substance to be centrifugally treated, and means for withdrawing liquid from said auxiliary compartment at radially different distances from the axis of rotation to the bowl.
  • an imperforate bowl mounted for rotation, a pervious partition within the bowl and dividing it into a main compartment and an auxiliary compartment, means for introducing into said main compartment a substance to be centrifugally treated, means for withdrawing liquid from a radially inward point of said main compartment, and means for withdrawing liquid from a radially outer point of said auxiliary compartment.
  • an imperforate bowl mounted for rotation, a pervious partition within the bowl and dividing it into a main compartment and an auxiliary compartment, means for introducing a substance into said main compartment, means for withdrawing liquid from a radially inward point of said main compartment, and means for introducing liquid into said auxiliary compartment.
  • an imperforate bowl mounted for rotation, a pervious partition within the bowl and dividing it into a main compartment and an auxiliary compartment, means for introducing a substance into said main compartment, and means for withdrawing liquid from a radially inward point of said main compartment and introducing it into said auxiliary compartment.
  • an iniper forate bowl mounted for rotation, means for introducing liquid to solid material in the rotating bowl at one point, and means for withdrawing said liquid from the solid material at a point remote from said first named point, one of said points being radially out ward of said solid material.
  • an imperforate bowl mounted for rotation, a partition within the bowl and in part pervious and dividing the bowl into a main compartment and an auxiliary compartment having a part surrounding said main compartment and a part at one end of said main compartment, means for introducing into said main compartment a substance to be treated, and means for withdrawing liquid from said auxiliary compartment at different radial distances from the axis of rotation.
  • an imperforate bowl mounted for rotation, a partition within the bowl and in part pervious and dividing the bowl into a main compartment and an auxiliary compartment having a part surrounding said main compartment and a part at one end of said main compartment, means for introducing into said main compartment a substance to be treated, means for withdrawing liquid from a radially inward point of said main compartment, and means for introducing liquid into said auxiliary compartment.
  • an imperforate bowl mounted for rotation, a pervious partition within the bowl and coaxial therewith and spaced from the wall thereof, a solid disk extending radially inward from said partition and spaced from the end of said bowl, means for introducing a substance into said bowl within said pervious partition and on one side of said disk, and means for withdrawing liquid from said bowl on the other side of said disk.
  • an imperforate bowl mounted for rotation, a pervious i partition within the bowl and coaxial therewith and spaced from the wall thereof, a solid disk extending radially inward from said partition and spaced from the end of said bowl, means for introducing a substance into said bowl within said pervious partition and on one side of said disk, and means for withdrawing liquid from said bowl on the other side of said disk at different radial dis tances from the axis of the bowl.
  • an imperforate bowl mounted for rotation, a pervious partition within the bowl and coaxial therewith and spaced from the wall thereof, means for introducing a substance into said bowl and within said partition, and means for withdrawingliquid from the space between said partition and said bowl.
  • an imperforate bowl mounted for rotation, a pervious partition within the bowl and coaxial therewith and spaced from the wall thereof, means for introducing a substance into said bowl and within said partition, means for withdrawing liquid from said bowl at a point radially inward of said partition, and means for supplying liquid to said bowl between said partition and the wall thereof.
  • the process comprising subjecting the mixture to the influence of centrifugal force in an imperforate sedimentation rotor and thereby separating the solid particles from the liquid by centrifugal sedimentation while preventing discharge of liquid from a radially outward point of the material under the influence of centrifugal force, and then centrifugally draining liquid from the solid particles in said rotor while said rotor remains imperforate.
  • the process comprising subjecting the mixture to the influence of centrifugal force in an imperforate sedimentation rotor and thereby separating the solid particles from the liquid by centrifugal sedimentation while preventing discharge of liquid from a radially outward point of the material under the influence of centrifugal force, and then withdrawing liquid from the rotor at substantially the radially outermost point of its interior and thereby draining said solid particles while said rotor remains imperforate.
  • the process comprising continuously introducing a mixture of liquid with solid particles into the influence of centrifugal force and separating the liquid from solid particles by centrifugal subsidence while centrifugally discharging liquid from the influence of centrifugal force from only a radially inward point of the material under the influence of centrifugal force until a desired quantity of solid particles has been collected, discontinuing the supply of mixture, and then withdrawing liquid from a radially outward point of the collected solids while they are still under the influence of centrifugal force and thereby centrifugally draining the solid particles.
  • the process comprising continuously introducing a mixture of liquid with solid particles into the influence of centrifugal force and separating the liquid from solid particles by centrifugal subsidence while centrifugally discharging liquid from the influence of centrifugal force until a desired quantity of solid particles has been collected, discontinuing the supply of mixture, then withdrawing liquid from a radially outward point of the collected solids while they are still under the influence of centrifugal force and thereby centrifugally draining the solid particles, and then passing a treating liquid through the body of solid particles by centrifugal sedimentation without substantial cessation of the influence of centrifugal force.

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US174975A 1927-03-12 1927-03-12 Centrifugal treatment of substances Expired - Lifetime US1761593A (en)

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BE349605D BE349605A (enrdf_load_stackoverflow) 1927-03-12
US174975A US1761593A (en) 1927-03-12 1927-03-12 Centrifugal treatment of substances
GB7502/28A GB287056A (en) 1927-03-12 1928-03-10 Improvements relating to centrifugal machines and the centrifugal separation of liquids from mixtures of liquids and solid particles

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US174975A US1761593A (en) 1927-03-12 1927-03-12 Centrifugal treatment of substances

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Cited By (17)

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US2485465A (en) * 1945-10-16 1949-10-18 American Tool & Machine Co Discharger for centrifugal separators
US2660211A (en) * 1950-02-18 1953-11-24 Berglind Nils Wilhelm Centrifugal machine for the recovery of liquid out of raw vegetable food
US2755934A (en) * 1953-02-10 1956-07-24 Escher Wyss Ag Multi-stage centrifugal machine
DE1075048B (de) * 1956-07-06 1960-02-04 Aktiebolaget Landsverk Landskrona (Schweden) H Monteus und N V An dersson Landskrona (Schweden) j Scbalemnchtung fur Zentrifugen
DE2603610A1 (de) * 1976-01-30 1977-08-04 Krauss Maffei Ag Zentrifugentrommel mit seitenfiltration
US4052303A (en) * 1972-12-11 1977-10-04 Krauss-Maffei Ag Method of operating a centrifugal filter and a filter centrifuge operating according to this method
FR2380820A1 (fr) * 1977-02-22 1978-09-15 Escher Wyss Sa Procede et dispositif pour la regeneration de la couche filtrante d'une centrifugeuse a ecroutage
DE2711345A1 (de) * 1977-03-16 1978-09-21 Escher Wyss Gmbh Verfahren und einrichtung zum regenerieren der filterschicht einer schaelzentrifuge
EP0085953A3 (en) * 1982-02-05 1986-02-19 Hitachi, Ltd. Apparatus for separating solid matters
DE3626317A1 (de) * 1986-08-02 1988-02-04 Krauss Maffei Ag Vorrichtung zum trennen von suspensionen
DE3626314A1 (de) * 1986-08-02 1988-02-04 Krauss Maffei Ag Vorrichtung zum trennen von suspensionen
EP0443382A1 (de) * 1990-02-15 1991-08-28 Krauss-Maffei Aktiengesellschaft Verfahren zum Reinigen des Filtermittels einer Filterzentrifuge
WO1994020668A1 (en) * 1993-03-11 1994-09-15 Watson Dana L System and method for recycling materials
US5676327A (en) * 1994-11-02 1997-10-14 Institut Francais Du Petrole Device for storing and for handling a rod made of composite
US5713826A (en) * 1996-05-07 1998-02-03 Waterlink, Inc. Vertical basket centrifuge with feed acceleration and a removable liner
US20200316501A1 (en) * 2017-12-19 2020-10-08 Xeros Limited Filter for a treatment apparatus
US11833458B2 (en) * 2019-11-18 2023-12-05 Lg Chem, Ltd. Pressurizing centrifugal dehydrator

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DE102011010621A1 (de) * 2011-02-08 2012-08-09 T & A Trenntechnik & Anlagenbau Gmbh Vollmantelzentrifuge mit Trocknung des Feststoffkuchens
DE102018105079B4 (de) * 2018-03-06 2025-03-20 Gea Mechanical Equipment Gmbh Verfahren zur Reinigung eines Ringraumes einer Vollmantel-Schneckenzentrifuge

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US2485465A (en) * 1945-10-16 1949-10-18 American Tool & Machine Co Discharger for centrifugal separators
US2660211A (en) * 1950-02-18 1953-11-24 Berglind Nils Wilhelm Centrifugal machine for the recovery of liquid out of raw vegetable food
US2755934A (en) * 1953-02-10 1956-07-24 Escher Wyss Ag Multi-stage centrifugal machine
DE1075048B (de) * 1956-07-06 1960-02-04 Aktiebolaget Landsverk Landskrona (Schweden) H Monteus und N V An dersson Landskrona (Schweden) j Scbalemnchtung fur Zentrifugen
US4052303A (en) * 1972-12-11 1977-10-04 Krauss-Maffei Ag Method of operating a centrifugal filter and a filter centrifuge operating according to this method
DE2603610A1 (de) * 1976-01-30 1977-08-04 Krauss Maffei Ag Zentrifugentrommel mit seitenfiltration
US4101421A (en) * 1976-01-30 1978-07-18 Krauss-Maffei Aktiengesellschaft Centrifuge drum with lateral filtration
FR2380820A1 (fr) * 1977-02-22 1978-09-15 Escher Wyss Sa Procede et dispositif pour la regeneration de la couche filtrante d'une centrifugeuse a ecroutage
US4146476A (en) * 1977-02-22 1979-03-27 Escher Wyss Limited Peeling centrifuge
DE2711345A1 (de) * 1977-03-16 1978-09-21 Escher Wyss Gmbh Verfahren und einrichtung zum regenerieren der filterschicht einer schaelzentrifuge
EP0085953A3 (en) * 1982-02-05 1986-02-19 Hitachi, Ltd. Apparatus for separating solid matters
DE3626317A1 (de) * 1986-08-02 1988-02-04 Krauss Maffei Ag Vorrichtung zum trennen von suspensionen
DE3626314A1 (de) * 1986-08-02 1988-02-04 Krauss Maffei Ag Vorrichtung zum trennen von suspensionen
EP0255623A3 (en) * 1986-08-02 1989-12-06 Krauss-Maffei Aktiengesellschaft Separating device for suspensions
US4895666A (en) * 1986-08-02 1990-01-23 Krauss-Maffei Aktiengesellschaft Centrifuge with two withdrawal chambers
EP0443382A1 (de) * 1990-02-15 1991-08-28 Krauss-Maffei Aktiengesellschaft Verfahren zum Reinigen des Filtermittels einer Filterzentrifuge
WO1994020668A1 (en) * 1993-03-11 1994-09-15 Watson Dana L System and method for recycling materials
US5676327A (en) * 1994-11-02 1997-10-14 Institut Francais Du Petrole Device for storing and for handling a rod made of composite
US5713826A (en) * 1996-05-07 1998-02-03 Waterlink, Inc. Vertical basket centrifuge with feed acceleration and a removable liner
US20200316501A1 (en) * 2017-12-19 2020-10-08 Xeros Limited Filter for a treatment apparatus
US12138568B2 (en) * 2017-12-19 2024-11-12 Xeros Limited Centrifugal filter unit for a washing machine having a removable portion shaped to scrape against a side wall during its removal
US11833458B2 (en) * 2019-11-18 2023-12-05 Lg Chem, Ltd. Pressurizing centrifugal dehydrator

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GB287056A (en) 1928-05-17

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