US2102525A - Separation of solid particles from fluids - Google Patents

Separation of solid particles from fluids Download PDF

Info

Publication number
US2102525A
US2102525A US160578A US16057837A US2102525A US 2102525 A US2102525 A US 2102525A US 160578 A US160578 A US 160578A US 16057837 A US16057837 A US 16057837A US 2102525 A US2102525 A US 2102525A
Authority
US
United States
Prior art keywords
vortex
chamber
particles
fluid
disc
Prior art date
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
US160578A
Other languages
English (en)
Inventor
Freeman Horace
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nichols Engineering and Research Corp
Original Assignee
Nichols Engineering and Research Corp
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 Nichols Engineering and Research Corp filed Critical Nichols Engineering and Research Corp
Application granted granted Critical
Publication of US2102525A publication Critical patent/US2102525A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B04C5/081—Shapes or dimensions

Definitions

  • This invention relates to the separation of solid or heavier particles, such for example as impurities from liquids, the classifying of fluid suspensions, and apparatus for such purposes.
  • the invention is particularly adapted for the separation of impurities from suspensions of paper-making stock or other fibers in water.
  • impurities usually include particles very close in specific gravity to both the fiber and the water itself, and hence the problem of thoroughly removing such particles to the extent necessary for making satisfactory paper, is generally diflicult and expensive.
  • impurities may include ground particles of the knotty portions of wood and the like.
  • Other impurities generally only slightly less difficult to adequately remove, comprise fine grit as from the pulp grinders, sand, silt, scale, sawdust, and compacted lumps of pulp, pitch or rosin.
  • Some paper pulp suspensions may also embody China clay, the removal of which with the impurities is to be avoided.
  • the present invention is particularly adapted for the removal of impurities from suspensions of China clay, and also from such suspensions with pulp, without danger of removing the desiredfine China clay, while at the same time any oversize particles of the clay, which would be as troublesome as impurities, are readily removed.
  • the invention is also well adapted for the refining or classifying of a large variety of materials similar to China clay suspensions.
  • the invention consists in such novel features, arrangements and combinations of parts as may be shown and described in connection with the apparatus hereindisclosed. and .also such novel methodsas are disclosed and described hereinafter.
  • FIG. 1 comprises a vertical sectional view of one unit-of the apparatus embodying the invention and in which the method of the invention maybe carried out;
  • Fig. 2 is an enlarged vertical sectional view of a portion of the apparatus of Fig. 1 and illustrating somewhat schematically the form of. the vortices established within the device;
  • Fig. 3 is a plan view illustrating the manner of connecting a plurality of the units of the apparatus
  • Fig. 4 is a vertical sectional view of a portion of the apparatus in a modifled form
  • Fig. 5 is a vertical sectional view of an alternative embodiment of the apparatus.
  • the apparatus of Fig. 1 may include a head piece Ill comprising ior example a-casting provided with an inlet connection as at II in the form 01' a somewhat tapered nozzle discharging tangentially into an annular, space 12, of somewhat spiral form and surrounding an outlet connection as at It.
  • The.outlet connection may comprise a-trumpet-shaped pipe located axially of the head piece with its lower and more restricted end as at ll extending substantially below the inlet connection.
  • the main body of the device may comprise an upper cylindrical section or chamber as at II and a lower chamber as at ll preferably similar to the upper chamber, although not necessarily so.
  • An apertured disc as at I! may be interposed transversely between the chambers I! and i6.
  • This disc is preferably formed of a pliable sheet This disc may initially be flat, as indicated by" of rubber or other flexible or suitable material.
  • the conical form of the disc is shown somewhat is generally preferably made somewhat less than i "the diameter of the restricted outlet I4 and in the neighborhood of three-eighths of the diameter of the chamber Ii.
  • disc n may be made of relatively rigid hard metallic sheet material, it
  • this chamber is in the form of an inverted cone as shown.
  • the various chamber portions of the device as above described may be secured together and to the head piece as by flanged connections as shown, the flanges being suitably bolted or otherwise secured together in any desired well-known manner.
  • the lower end of the conical chamber 22 may be connected through a normally open valve as at 23 to a waste pipe 24 including if desired a length of transparent tubing which forms a "sight glass” in which the waste material may be viewed as it settles through the clear quiescent liquid at this point.
  • the lower end at the waste pipe 24 may be connected to a waste receiver or reservoir as at 25 which may be made of metal or may comprise a glass bottle.
  • This chamber which is kept sealed during the normal-operation of the equipment, is initially fllled with clear liquid such as water, to provide a collecting chamber for the waste material which gradually displaces the water.
  • the waste receiver or chamber 25 may be provided with an air discharge cook 26 and with a water pipe connection as at 21. If desired, the lower end of the receiver 25 may be provided with a valved outlet as at 20.
  • the operation oi the device of Fig. 1 will be
  • the prepared pulp suspension or other fluid suspension to be treated may be conducted into the inlet ll under a substantial pressure created by a suitable pump for example. Since the suspension is discharged from the inlet ll tangentially into the'annular space l2, it will be forced downwardly in a spiral path-i. e. more speciflcally a substantially helical path, forming an annular body of the suspension as at 3
  • the outer surface of the downwardly rotating body, of the suspension 30 is substantially cylindrical all the way from the head piece nearly down to the disc or partition I1, and this body will occupy all of the space within the chamber I 5 except for a central or core section occupied by an upwardly moving vortex 3i hereinafter described.
  • the outer vortex or body of suspension 10 is so restricted and subject to pressure conditions such that the angular velocity therein about the central vertical axis of the device will be quite rapid, with the result that the centrifugal force causes the solid and heavier particles of impurities to be thrown outwardly toward the walls of the chamber l5.
  • the angular velocity of this downwardly moving helix will be greatly increased, thus insuring that substantially all of the particles of impurities therein, together with particles previously expelled to the outer surfaces of the helix, will be passed through the aperture l8 at the very periphery thereof. Once these particles have passed through the aperture 1 8, the disc I! serves to entrap them against their returning up into the chamber l5.
  • the orifice I8 is such as to offer only a momentary restriction to the flow, allowing the vortices to almost immediately expand again andadapt themselves to the contour of the chamber.
  • the helical downwardly moving body or vortex will expand in diameter as indicated at 30' and continue in the form of another hollow substantially cylindrical body rotating downwardly to a point near the zone of the lower disc IS.
  • the outer vortex within the chamber I6 will still retain suflicientcentrifugal effect to maintain the particles of impurities near the walls of the chamber I 6 as they settle or are carried toward the disc I91 disc l9 centrally and upwardly to form an inner upwardly moving helix or vortex 3
  • the particles carried through the aperture or apertures 21 will settle to the bottom of the conical chamber 22 and the relatively small amount of fluid passing down through the apertures 2
  • This fluid in passing up through aperture 20 may impinge upon the lower ends of the vortices 30' and 3
  • the upwardly rotating central core or vortex 3! being of a diameter and cross section somewhat less than the vortex 30', will have an increased angular velocity as compared with vortex 30'. Accordingly any of the impurities which are more difficult of removal or which may have been swept upwardly in this central vortex, are now subjected to a further intense centrifugal action forcing such particles out of the central vortex and into the downwardly moving vortex 30'. This action may be made quite prolonged and effective, inasmuch as the vortex 3
  • the treated suspension is withdrawn of the device.
  • the lower end of the outlet I4 is located suiflciently below the point of discharge of the incoming stream into the device so that the outer downwardly moving vortex will be firmly established before it passes the outlet i4.
  • the inner lower end of the outlet I4 is relatively restricted as compared with the cross section of the inlet, and so as to conform to or be no greater than the cross sectional area of the upwardly flowing vortex 3!, This further insures that none but the treated fluid will be allowed to escape through the outlet.
  • outlet conduit may be expanded in cross sectional area so as to not create any excessive back pressure in the apparatus.
  • Liquid suspensions are preferably introduced into the device in such .manner as to avoid introduction of any substantial amounts of air or gas therewith which might interfere with the above described formation of the vortices.
  • the centrifugal action of the vortices will ordinarily be so intense as to cause a small substantially evacuated space to be established along the entire vertical axis of the chambers I5 and I 6 as indicated by the wavy central lines 32.
  • the impurities settling in the chamber 22 will further slowly settle through the normally open valve 23, sight glass 24 and into the receptacle 25, these parts being filled with a quiescent body of liquid such as water introduced before the apparatus is placed in operation.
  • a quiescent body of liquid such as water introduced before the apparatus is placed in operation.
  • the receptacle 25 becomes filled with the impurities, they will serve to gradually displace the liquid and except for this very slow gradual upward movement of the displaced liquid, the liquid below the conical chamber 22 will be free of motion.
  • the apparatus not only provides re-'; peated and prolonged opportunity for the par-' ticles of impurities to be centriiugaily removed from the vortices of the pulp suspension, but the apertured disc arrangements at i! and. serve .to entrap these particles against any possibility of their return toward the pulp outlet.
  • the portions below the disc I! serves to maintain a quiescent body of liquid into which the particies of impurities may settle without possibility of their being again agitated and ent
  • valve 23' may be closed for a moment while the receptacle 25 is emptied through its valved outlet 28 and then refilled with fresh water through the supply pipe 21. Then upon closing valve 28, the valve 23 may be opened again. During the short interval of cleaning the receptacle 2!, the impurities being removed may accumulate in the conical chamber 22 without difliculty. Accordingly, the device may be maintained in continuous operation during the cleaning of the receptacle 25.
  • the walls of the chambers l5 and Ii may be made of transparent material so that the action or the vortices may be readily observed, but this is unnecessary once a typical unit has been placed in proper operation for a particular purpose.
  • the dimensions of the various parts may become of substantial importance.
  • the preferred dimensions are as follows:-The' length of the cylinder comprising chambers I5 and i6, is about 42 inches and has a diameter oi. 4 inches.
  • the inlet pipe Ii has a diameter of 3 inches, and the restricted lower end of the outlet H, a diameter of 2 inches.
  • the aperture in the disc ll has a diameter of 1% inches.
  • the central aperture in the disc l9 has a diameter of inch, and the aperture 2
  • the height of the conical chamber 22 is 6 inches and may be provided with an outlet pipe 1 inch in diameter, although the dimensions and shape of the chamber 22 and of the waste outlet therehom are not of such importance as other factors above mentioned
  • a single unit as above described has a capacity of about 150 imperial gallons of liquid per minute. Assuming a stock consistency of about 0.5%, each of these units can be used to treat in the neighborhood of 5 to 6 tons of paper stock (dry basis) per day, if supplied with stock at a pressure of about 25 pounds per square inch.
  • the pressure difference between the inlet and outlet may be maintained at about 15 pounds per square inch, or more.
  • the diameter of the chambers I5 and I6 be maintained small in comparison with the height. Most effective results may be obtained material enlargement of the cross sectional area of the annular space through which this stream must pass in forming the prolonged downwardly If the diameter is increased, .the eiii-.
  • Thisrelationship of the cross sectional areas of the vortices further makes it possible to use an outlet conduit of such size as to be filled by the upwardly flowing inner core to the exclusion of adjacent downwardly flowing untreated liquid, while the outlet .conduit may still be of a diameter sufiicient to avoid undue back pressures in the device.
  • the interior surfaces of the chambers l5 and l6 should be made quite smooth so as to prevent the formation of irregular eddy currents interfering with the action of the vortices, as above described.
  • the extended cylindrical form of these chambers greatly contributes to the substantial uniform maintenance of the rather sharply defined and extended concentric downwardly and upwardly moving vortices, once the vortices have been normally established.
  • Fig. 3 illustrates the manner in which several of the above described units of the device may be interconnected with a single pump for treating a greater volume of liquid.
  • a common feed manifold is indicated at to which inlet pipes as at H are connected.
  • a common outlet manifold for the treated liquid is indicated at 4
  • the manifold-40 is shown as connected to a suitable pump as at 42 for supplying the necessary pressure to the incoming liquid.
  • Fig. 4 illustrates an alternative construction which maybe used in lieu of the conical chamber 22 above described. That is, in Fig. 4 a lower or conical chamber 43 may have its inner surfaces formed with a plurality of vertically and inwardly extending fins as at 44, for diminishing the turbulence within this chamber and thereby affording greater opportunity for the particles of impurities to promptly settle, and preventing any abrasive action of such particles tending to wear away the walls of the chamber.
  • This form of conical chamber is particularly useful in the event the disc f9 is omitted.
  • Fig. 5 an alternative embodiment of the apparatus is shown which may be similar to that of Fig. 1 except for the features hereinafter described.
  • the main body of the device of Fig. 5 may comprise a single and vertically elongated cylindrical chamber 35 corresponding in general as to function to the chamber l5 above described, although of suflicient length to accomplish in part the functions of chamber I6 also.
  • An apertured disc 36 corresponds in general to the disc I! above described.
  • the action of the vortices 3'! and 38 as restricted in passing through the disc 36 will be similar to the action of the vortices within the aperture of the disc I! above described.
  • the functions of the chambers l6 and 22 explained in connection with Fig. 1, are in Fig.
  • this invention provides a simple form of construction adapted for a wide variety of uses in classifying materials conducted in a stream of. fluid. And the construction has no moving parts or other parts subject to any appreciable wear. No great expense for power is required in operating the device.
  • the space required for an installation isv small and the units when used for paper pulp cleaning may be located close to the paper machines using generally the existing pipe lines, valves, etc., and frequently the same pump previously used for supplying the pulp stock to the machines.
  • a disc of rubber or the like flexible material supported at its periphery and having a central aperture, a chamber above said disc, means for establishing a downwardly and helically flowing annular body of the fluid in said chamber impinging against said disc around said aperture and deflecting the areas of the disc substantially downwardly with said helically flowing body'extending in restricted form through said aperture, means including an enclosed chamber below said disc for causing said fluid to return from below said disc upwardly through the center of said aperture while still flowing in a helical path, and an enclosed quiescent body of fluid below said last named chamber and normally in communication therewith for receiving said particles.
  • Apparatus for separating relatively hea particles from fluid comprising an upstanding cylinder of a height at least several times its diameter, a partition with a central aperture and extending transversely across the lower end of said cylinder, a chamber below said partition, a closure for the top of said cylinder, means for introducing tangentially at said top a stream of the fluid under sumcient pressure for establishing a downward helically flowing annular body of fluid fllling'the peripheral zones of the cylinder and extending in restricted form through said aperture and thence in expanded form into said chamber, the cross sectional area of said introduced "stream approximating that of said helically flowing body in the cylinder, and an outlet conduit with a restricted mouth positioned in the space within the upper end of said cylinder, and extending upwardly, the parts being of such proportions and shape that the fluid after entering said chamber returns upwardly within said annular body, forming a helical core of high angular velocity, confined within and by said downwardly flowing body and filling said outlet
  • Apparatus for separating relatively heavy particles from fluid comprising an upstanding substantially cylindrical chamber, a closure for the top thereof, means for forcing a stream of the fluid of such dimensions and pressure into chamber, said. partition having a central apery ture whereby said vortices are greatly restricted in passing concentrically therethrough, a second partition extending across said chamber in the neighborhood of the lower end thereof and being apertured to permit a relatively gentle current of fluid to carry particles from said downward vortex to a point below said second partition, and permitting such current to return to the upward vortex, and means normally enclosing the space below said second partition against other escape of fluid therefrom.
  • Apparatus for separating relatively heavy particles from fluid comprising an upstanding substantially cylindrical chamber, a closure for the top thereof, means for forcing a stream of g the fluid of such dimensions and pressure into the upper end of said chamber as to establish a downwardly flowing outer vortex occupying the peripheral zones thereof, the fluid of said vortex returning as an upwardly flowing inner vortex confined within and by the downward vortex, an outlet for withdrawing the fluid of said upward vortex upwardly from within the upper end of said outer vortex, a partition extending across said chamber at a point spaced substantially from both the upper and lower ends or said cylindrical chamber. said partition having a central aperture whereby said vortices are greatly restricted in passing concentrically therethrough, an enclosed quiescent body of fluid below the lower ends of said vortices, and means normally providing a restricted communication between such body and said lower ends.
  • a disc supported at its periphery and having a central aperture, a chamber above said disc means including an inlet at the top oi said chamber for establishing a downwardly and helically flowing annular body 01' the water suspension in said chamber impinging against said disc with said helically flowing body extending in restricted form through said aperture and expanding again below said aperture, means including an enclosed chamber below said disc for then causing such water suspension to return upwardly through the center of said aperture while still flowing helically, a discharge conduit for said suspension, said conduit having its mouth within the upper portion oi said first named chamber but below said inlet and within said annular body for withdrawing irom the apparatus such upward helical flow exclusively of the adjacent downward flow, and an enclosed quiescent body of water beneath and spaced from said helical flows for receiving said particles.
  • the method of separating relatively hea particles from fluid which comprises establishing a downwardly flowing vortex oi the fluid confined under substantial pressure and in the shape of a vertically extending substantially cylindrical body oi a height at least several times greater than its diameter, deflecting the fluid at the lower end of said vortex upwardly and centrally of said vortex whereby a second and upwardly flowing vortex is formed within and confined by said first named vortex, said second vortex also being of a vertically extended substantially cylindrical shape and having a higher angular velocity than the first, withdrawing the fluid comprised in the second vortex, axially and upwardly from within the upper end 01' the first vortex, without directly withdrawing any substantial amount of the fluid oi the first vortex, and greatly restricting the diameter of said first vortex and thereby causing restriction of the second vortex therein at a point spaced substantially below the upper ends oi the vortices whereby the angular velocities of the vortices are increased at such restriction, and providing,
  • the method of separating relatively heavy particles from liquid suspensions 01' lighter or finer material which comprises establishing a downwardly flowing vortex oi the liquid confined under substantial pressure and in the shape of a vertically extended substantially cylindrical body of a height at least several times greater than its diameter, deflecting the liquid at the lower end of said vortex upwardly and centrally of said vortex whereby a second and upwardly flowing vortex is formed within and confined by said first named vortex, said second vortex also being of a vertically extended substantially cylindrical shape and having a higher angular velocity than the first, withdrawing the desired liquid suspension comprised in the second vortex, axially and upwardly from within the upper end of the first vortex, without directly withdrawing any substantial amount of the liquid of the first vortex, and greatly restricting the diameter of said first vortex and thereby causing restriction of the second vortex therein at a point intermediate the upper and lower ends or the vortices whereby the angular velocities of the vortices are increased at such restriction, and providing a
  • the method of separating relatively heavy or solid particles of an abrasive character from fluid which comprises establishing a downwardly and helically flowing annular body oi the fluid, providing an annular obstruction having a passage therethrough surrounded with downwardly yielding areas, said obstructions being in the path of such flow for directing the same as a more restricted helically flowing annular body through such passage, then returning said fluid while still flowing helically, upwardly, axially 0i and within said annular body of fluid to a point of withdrawal, whereby said particles are thrown by centrifugal force to,-and carried down in the peripheral zones in the downwardly flowing fluid and prevented by the action of said obstruction from rising to said point of withdrawal.
  • the method of separating relatively heavy particles from liquid fibrous pulp suspensions which comprises tangentially introducing a stream of the liquid suspension under substantial pressure into a space so restricted as to establish a downward helically flowing annular body oi stantially distinct core of higher angular and linear velocity within and confined by said annular body, withdrawing the liquid suspension of such core only, upwardly from within the upper end of said annular body, and providing an enclosed quiescent body of liquid below the lower end of said annular body for receiving said particles.
  • the method of separating relatively heavy particles from liquid which comprises establishing a downwardly and helically flowing annular body of the liquid, providing an annular obstruction in the path of such flow for directing the same as a more restricted helically flowing annular body through the center of such obstruction, then causing such helical flow to expand and continue downwardly beneath the obstruction, then returning said liquid while still flowing helically, upwardly, axially of and within said annular body of liquid to a point of withdrawal, whereby said particles are thrown by centrifugal force to, and carried down in the peripheral zones in the downwardly flowing liquid and prevented by the action of said obstruction from rising to said point of withdrawal, and maintaining .a distinct substantially quiescent body of liquid below the zones of such helical flows for-receiving said particles.
  • Apparatus for separating solids from fluid suspensions comprising a closed vertical stationary chamber having a cylindrical portion long in relation to its diameter, means for admitting the fluid suspension tangentially under pressure to the chamber adjacent the top of the cylindrical portion, a disc extending transversely across the space within said cylindrical portion and having therein a central openin-gaxially disposed of said chamber, means for. discharging fluid upwardly from a point axially located adjacent the top but below the inlet to said chamber, a lower discharge outlet for said solids located substantially axially of the chamber below said disc, and a chamber having its side walls extending downwardly to said outlet from points on said disc spaced from said opening.
  • Apparatus for purifying fluid paper-making stock and the like which comprises a plurality of units as defined in claim 12 in combination with a common feed manifold for all said units and a pump for exerting a constant pressure on stock flowing through said manifold to said units.
  • Apparatus for purifying paper stock comprising a closed and stationary cylinder long in realtion to its diameter, a tangential inlet adjacent the top, a top discharge outlet pipe projecting into the cylinder to a point below said inlet,
  • Apparatus for purifying flbrouspulp stock comprising a closed-cylinder long in relation to its diameter and subdivided into three superposed separating chambers, a disc with a central opening therein constituting the lower wall of each of the two uppermost chambers, said discs extending over the greater part of their areas in a general direction at right angles'to the axis of said cylinder, a discharge opening at the base of the other of said chambers, a tangential inlet adjacent the top of said cylinder and an-axially disposed outlet pipe also adjacent-the top of said;
  • Apparatus of the character described comprising a closed chamber having therein two superposed unobstructed, cylindrical, axially disposed portions, long in relation to their diameter, a disc with a central opening therein at the base of each portion and anchored in the walls thereof, a settling portion below the lower disc with a discharge outlet at a point removed from said lower disc, another discharge opening extending axially and upwardly from within the upper cylindrical portion, and an inletextending substantially tangentially into the space surrounding said last named discharge opening.
  • Apparatus for separating relatively heavy particles from a fluid comprising an upstanding cylinder of a height at least several times its diameter, a partition with a central aperture and extending transversely across said cylinderjat a substantial distance from its upper end, a chamber below said partition, a closure for the top of said cylinder, inlet means for introducing tangentially at said top a stream of the fluid of such dimensions and pressure as to establish a downward helically flowing annular body of the fluid occupying the peripheral zones of the cylinder and extending in restricted form through said aperture and thence into saidchamber, an outlet conduit having its mouth positioned in the space within the upper end of said cylinder but below said inlet means, said conduit extending upwardly, the parts being of such proportions andshape that the fluid after entering said chamber returns upwardly within said annular body, forming a helical core of high angular velocity, confined within and by said downwardly flowing body and filling said outlet to the exclusion of adjacent downwardly flowing fluid, and a re

Landscapes

  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Cyclones (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Paper (AREA)
  • Centrifugal Separators (AREA)
US160578A 1936-03-11 1937-08-24 Separation of solid particles from fluids Expired - Lifetime US2102525A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA2102525X 1936-03-11
US507412XA 1936-11-19 1936-11-19

Publications (1)

Publication Number Publication Date
US2102525A true US2102525A (en) 1937-12-14

Family

ID=32031350

Family Applications (1)

Application Number Title Priority Date Filing Date
US160578A Expired - Lifetime US2102525A (en) 1936-03-11 1937-08-24 Separation of solid particles from fluids

Country Status (4)

Country Link
US (1) US2102525A (xx)
BE (2) BE420877A (xx)
DE (1) DE754339C (xx)
GB (1) GB507412A (xx)

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746910C (de) * 1938-11-19 1944-08-30 Nichols Engineering & Res Corp Verfahren und Vorrichtung zum Entfernen von schweren Verunreinigungen aus einer Aufschwemmung, insbesondere von Zellstoff, Papierstoff u. dgl.
US2473488A (en) * 1945-06-16 1949-06-14 Zaremba Company Vortical current separator
US2494465A (en) * 1945-05-23 1950-01-10 Aerotec Corp Apparatus for classifying particles
US2498832A (en) * 1946-05-13 1950-02-28 Aerotec Corp Apparatus for classifying and separating suspended particles from gases
US2530181A (en) * 1947-07-29 1950-11-14 Nichols Eng & Res Corp Separating apparatus
US2550340A (en) * 1945-08-07 1951-04-24 Directie Staatsmijnen Nl Process for the separation of solid substances of different specific gravity and grain size
US2550341A (en) * 1945-08-28 1951-04-24 Directie Staatsmijnen Nl Process for controlling the concentrations of suspensions
US2620925A (en) * 1948-11-29 1952-12-09 Tedman Donald Apparatus for the separation of particles
US2654479A (en) * 1938-12-28 1953-10-06 Directie Van De Staatsmijnen D Separation of suspensions of solid matter in liquids
DE894194C (de) * 1947-01-23 1953-10-22 Vickerys Ltd Verfahren und Vorrichtung zum Betrieb von Wirbelabscheidern fuer die Verarbeitung von Papierstoff u. dgl.
US2709397A (en) * 1950-07-19 1955-05-31 Dorries A G Vorm Maschinenfabr Tubular hydro-extractor for purifying suspensions of fibrous material
US2757582A (en) * 1952-09-24 1956-08-07 Nichols Engineering And Res Co Separation of gas and undesired particles from liquids
US2757581A (en) * 1952-09-24 1956-08-07 Nichols Engineering And Res Co Vortex separators
US2765918A (en) * 1953-05-11 1956-10-09 Stamicarbon Multiple hydrocyclone
US2767624A (en) * 1950-07-30 1956-10-23 Dorries A G Vorm Maschinenfabr Tubular hydroextractor for the purifying of suspensions, especially suspensions containing fibrous material
US2796808A (en) * 1955-12-06 1957-06-25 Vickerys Ltd Vortex separators
US2809567A (en) * 1953-09-16 1957-10-15 Bauer Bros Co Apparatus for separating solids from a liquid suspension
US2816490A (en) * 1952-09-24 1957-12-17 Nichols Engineering And Res Co Apparatus for treating liquid mixtures for separation of solid particles and gases
US2897972A (en) * 1956-03-28 1959-08-04 Bird Machine Co Separator
US2920761A (en) * 1952-09-24 1960-01-12 Nichols Engineering And Res Co Apparatus for separating and deaerating pulp suspension
US2936110A (en) * 1945-01-31 1960-05-10 Cohen Karl Method of centrifuge operation
US3135684A (en) * 1959-03-09 1964-06-02 Holderbank Cement Separating pulverous or granular material from a carrier medium
US3199212A (en) * 1959-03-21 1965-08-10 Motures D Aviat Soc Nat D Etud Fluidized particle heat exchange
US3455450A (en) * 1967-02-15 1969-07-15 Tyler Inc W S Method and apparatus for sizing of discrete particles in a fluid medium
US3887456A (en) * 1973-10-01 1975-06-03 James W Loughner Classifier with rifflers and variable throat
FR2382943A1 (fr) * 1977-03-07 1978-10-06 Celleco Ab Separateur hydrocyclone
EP0052042A2 (fr) * 1980-11-06 1982-05-19 Michel Aussenard Protection de la paroi d'un centrifugeur contre l'abrasion des particules séparées par centrifugation et dispositif pour sa mise en oeuvre
US4378289A (en) * 1981-01-07 1983-03-29 Hunter A Bruce Method and apparatus for centrifugal separation
WO1990003223A1 (de) * 1988-09-29 1990-04-05 Sulzer-Escher Wyss Gmbh Papierstoffreiniger
WO1991019572A1 (en) * 1990-06-15 1991-12-26 Heidemij Reststoffendiensten B.V. Flotation cyclone
WO1998047622A1 (en) * 1997-04-18 1998-10-29 Beloit Technologies, Inc. Channeling dam for centrifugal cleaner
US6036027A (en) * 1998-01-30 2000-03-14 Beloit Technologies, Inc. Vibratory cleaner
US6109451A (en) * 1998-11-13 2000-08-29 Grimes; David B. Through-flow hydrocyclone and three-way cleaner
US7909990B2 (en) * 2001-11-27 2011-03-22 Takahashi Co., Ltd. Filter device
US10065197B2 (en) * 2016-07-12 2018-09-04 John Richmond Hydraulic particle separation apparatus for placer mining

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170766B (de) * 1952-04-25 1964-05-21 Voith Gmbh J M Vorrichtung zum stetigen Ausscheiden spezifisch schwerer Verunreinigungen aus Faserstoffaufschwemmungen
BE544291A (xx) * 1955-03-10 1900-01-01 Horace Freeman
GB893764A (en) * 1958-05-01 1962-04-11 Charles Augustus Mcclure Process and apparatus for centrifugal classification and separation of solid particles in liquid medium
SE304167B (xx) * 1960-02-29 1968-09-16 Svenska Cellulosa Ab
US4147630A (en) * 1977-09-19 1979-04-03 Laval Claude C Hydraulic separating device with automatic flow control
GB2298598A (en) * 1995-03-07 1996-09-11 Notetry Ltd Cyclone dust separator for vacuum cleaner with dust-settling fins or baffles
GB9815783D0 (en) * 1998-07-20 1998-09-16 Notetry Ltd Apparatus for separating dirt or dust from an airflow
CN103786256B (zh) * 2014-03-04 2016-04-20 宜兴市宸昊科技有限公司 耐高温陶瓷旋风筒的制造方法与设备
US9827575B2 (en) 2015-12-18 2017-11-28 Metso Minerals Industries, Inc. Controlled turbulent breakup flow
CN110721534A (zh) * 2019-11-05 2020-01-24 湖南核三力技术工程有限公司 立式烟丝回收与风压调节一体化装置以及卷接机组工艺风力与除尘系统

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US769808A (en) * 1903-07-22 1904-09-13 Engelbert Venderbush Dust collector and separator.
GB106918A (en) * 1916-09-19 1917-06-14 Thomas Robinson & Son Ltd Improvements in Cyclone Dust Collectors.
GB406036A (en) * 1932-08-19 1934-02-19 Charles Henry Wood Cheltnam Improvements in centrifugal apparatus for separating and collecting dust or other solid particles from air and gases
CH176351A (de) * 1933-05-30 1935-04-15 Bruno Schneider Fred Vorrichtung zum Ausscheiden von festen Bestandteilen aus gasförmigen Medien.
CH176352A (de) * 1933-11-21 1935-04-15 Bruno Schneider Fred Vorrichtung zum Abscheiden von festen Bestandteilen aus Luft bezw. Gas.
CH176353A (de) * 1934-03-07 1935-04-15 Bruno Schneider Fred Fliehkraft-Staubabscheider.
NL43368C (xx) * 1935-03-22

Cited By (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746910C (de) * 1938-11-19 1944-08-30 Nichols Engineering & Res Corp Verfahren und Vorrichtung zum Entfernen von schweren Verunreinigungen aus einer Aufschwemmung, insbesondere von Zellstoff, Papierstoff u. dgl.
US2654479A (en) * 1938-12-28 1953-10-06 Directie Van De Staatsmijnen D Separation of suspensions of solid matter in liquids
US2936110A (en) * 1945-01-31 1960-05-10 Cohen Karl Method of centrifuge operation
US2494465A (en) * 1945-05-23 1950-01-10 Aerotec Corp Apparatus for classifying particles
US2473488A (en) * 1945-06-16 1949-06-14 Zaremba Company Vortical current separator
US2550340A (en) * 1945-08-07 1951-04-24 Directie Staatsmijnen Nl Process for the separation of solid substances of different specific gravity and grain size
US2550341A (en) * 1945-08-28 1951-04-24 Directie Staatsmijnen Nl Process for controlling the concentrations of suspensions
US2498832A (en) * 1946-05-13 1950-02-28 Aerotec Corp Apparatus for classifying and separating suspended particles from gases
DE894194C (de) * 1947-01-23 1953-10-22 Vickerys Ltd Verfahren und Vorrichtung zum Betrieb von Wirbelabscheidern fuer die Verarbeitung von Papierstoff u. dgl.
US2530181A (en) * 1947-07-29 1950-11-14 Nichols Eng & Res Corp Separating apparatus
US2620925A (en) * 1948-11-29 1952-12-09 Tedman Donald Apparatus for the separation of particles
US2709397A (en) * 1950-07-19 1955-05-31 Dorries A G Vorm Maschinenfabr Tubular hydro-extractor for purifying suspensions of fibrous material
US2767624A (en) * 1950-07-30 1956-10-23 Dorries A G Vorm Maschinenfabr Tubular hydroextractor for the purifying of suspensions, especially suspensions containing fibrous material
US2849930A (en) * 1952-09-24 1958-09-02 Nichols Engineering And Res Co Method and apparatus for treating pulp suspensions and other fluids for removal of undesired particles and gases
US2816490A (en) * 1952-09-24 1957-12-17 Nichols Engineering And Res Co Apparatus for treating liquid mixtures for separation of solid particles and gases
US2757581A (en) * 1952-09-24 1956-08-07 Nichols Engineering And Res Co Vortex separators
US2920761A (en) * 1952-09-24 1960-01-12 Nichols Engineering And Res Co Apparatus for separating and deaerating pulp suspension
US2757582A (en) * 1952-09-24 1956-08-07 Nichols Engineering And Res Co Separation of gas and undesired particles from liquids
US2765918A (en) * 1953-05-11 1956-10-09 Stamicarbon Multiple hydrocyclone
US2809567A (en) * 1953-09-16 1957-10-15 Bauer Bros Co Apparatus for separating solids from a liquid suspension
US2796808A (en) * 1955-12-06 1957-06-25 Vickerys Ltd Vortex separators
US2897972A (en) * 1956-03-28 1959-08-04 Bird Machine Co Separator
US3135684A (en) * 1959-03-09 1964-06-02 Holderbank Cement Separating pulverous or granular material from a carrier medium
US3199212A (en) * 1959-03-21 1965-08-10 Motures D Aviat Soc Nat D Etud Fluidized particle heat exchange
US3455450A (en) * 1967-02-15 1969-07-15 Tyler Inc W S Method and apparatus for sizing of discrete particles in a fluid medium
US3887456A (en) * 1973-10-01 1975-06-03 James W Loughner Classifier with rifflers and variable throat
FR2382943A1 (fr) * 1977-03-07 1978-10-06 Celleco Ab Separateur hydrocyclone
EP0052042A2 (fr) * 1980-11-06 1982-05-19 Michel Aussenard Protection de la paroi d'un centrifugeur contre l'abrasion des particules séparées par centrifugation et dispositif pour sa mise en oeuvre
EP0052042A3 (fr) * 1980-11-06 1983-01-05 Michel Aussenard Protection de la paroi d'un centrifugeur contre l'abrasion des particules séparées par centrifugation et dispositif pour sa mise en oeuvre
US4378289A (en) * 1981-01-07 1983-03-29 Hunter A Bruce Method and apparatus for centrifugal separation
WO1990003223A1 (de) * 1988-09-29 1990-04-05 Sulzer-Escher Wyss Gmbh Papierstoffreiniger
WO1991019572A1 (en) * 1990-06-15 1991-12-26 Heidemij Reststoffendiensten B.V. Flotation cyclone
US5322169A (en) * 1990-06-15 1994-06-21 Heidemij Reststoffendiensten B.V. Flotation cyclone
WO1998047622A1 (en) * 1997-04-18 1998-10-29 Beloit Technologies, Inc. Channeling dam for centrifugal cleaner
US5934484A (en) * 1997-04-18 1999-08-10 Beloit Technologies, Inc. Channeling dam for centrifugal cleaner
US6036027A (en) * 1998-01-30 2000-03-14 Beloit Technologies, Inc. Vibratory cleaner
US6109451A (en) * 1998-11-13 2000-08-29 Grimes; David B. Through-flow hydrocyclone and three-way cleaner
US7909990B2 (en) * 2001-11-27 2011-03-22 Takahashi Co., Ltd. Filter device
US10065197B2 (en) * 2016-07-12 2018-09-04 John Richmond Hydraulic particle separation apparatus for placer mining

Also Published As

Publication number Publication date
GB507412A (en) 1939-06-13
DE754339C (de) 1951-10-25
BE426877A (xx)
BE420877A (xx)

Similar Documents

Publication Publication Date Title
US2102525A (en) Separation of solid particles from fluids
US3351195A (en) Method and apparatus for continuous classification of solid particles dispersed in afluid carrier
US2757582A (en) Separation of gas and undesired particles from liquids
US2312706A (en) Method and apparatus for separating heavy particles from paper pulp suspensions
US4280902A (en) Separation of dense impurities from a fluid
US2379411A (en) Method and apparatus for purifying paper pulp
US2910424A (en) Separation and recovery of oil from oil sands
US2913114A (en) Process and an apparatus for separating solids from suspensions of solids in fluids
US3433362A (en) Cyclone purifier
US2843265A (en) Method of density separation
US3764005A (en) Hydrocyclone pulp cleaner
US4539103A (en) Hydraulic separating method and apparatus
US2967617A (en) Hydraulic classifier
US2364405A (en) Method and apparatus for separating foreign matter from papermaking material
US2776053A (en) Hydraulic separating apparatus and method
US4070274A (en) Coarse concentrated iron ore for catalytic purposes
US2726767A (en) Densifying of solids-liquid mixtures
US2760635A (en) Process and apparatus for separating mixtures of solids in a liquid medium
US2999593A (en) Classification of materials
US2725983A (en) Whirlpool separation of particulate materials
US4807761A (en) Hydraulic separating method and apparatus
US2273271A (en) Apparatus for removing solids from fluids
US3415373A (en) Particle size classification method and apparatus
US2071617A (en) Classifier
US3662885A (en) Apparatus for the hydraulic classification of solids