US3367499A - Shaking-funnel device for the gravity concentration of solid particles - Google Patents

Shaking-funnel device for the gravity concentration of solid particles Download PDF

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Publication number
US3367499A
US3367499A US424976A US42497665A US3367499A US 3367499 A US3367499 A US 3367499A US 424976 A US424976 A US 424976A US 42497665 A US42497665 A US 42497665A US 3367499 A US3367499 A US 3367499A
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United States
Prior art keywords
shaking
funnel
vat
container
solid particles
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Expired - Lifetime
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US424976A
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English (en)
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Motosi Aldo
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • B03B5/04—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on shaking tables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/08—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to weight
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
    • B07B13/10—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects
    • B07B13/11—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters
    • B07B13/113—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices using momentum effects involving travel of particles over surfaces which separate by centrifugal force or by relative friction between particles and such surfaces, e.g. helical sorters shaking tables

Definitions

  • ABSTRACT OF THE DISCLOSURE Mechanical shaking apparatus for the separation by gravity of particles having different densities comprising a container and drive means to impart thereto a compound, nonuniform circular and vibratory motion, and including a plurality of idler gears.
  • This invention relates to a mechanical shaking apparatus for separating a mixture of solid particles having practically the same size but a considerable difference in density or specific weight and applies particularly to the dressing of ores or to the concentration of the valuable components of a powdery or granulated mixture, either dry or in slurry form.
  • the improved shaking apparatus for the concentration by gravity of powdered ores or the like comprises an open-top container or vat having at least a preferably wide-angled funnel-shaped bottom or diaphragm or funnel provided with an outlet port at its lower reduced central part and a distributing baille cone arranged above said o-r above each of said tunnels and adapted to distribute the feed at the periphery of each container, above each funnel, means being provided for imparting to said containers and funnel a gyratory or planetary shaking movement, due mainly to vibrations imparted to the moving parts due to the drive arrangement of the construction, whereby the feed, which is preferably in a wet or slurry form, but which in some cases may be also dry, due to the slope of the funnels towards the centre thereof, and to the vibration of the container, moves in the direction of the gyratory motion towards the centre of the funnel where the heavy material collects in form of a lower layer in proximity of the funnel, and tends to flow towards the outlet port thereof from which it
  • FIGURE l shows in vertical section a shaking concentrating apparatus according to the invention
  • FIGURE 2 is a plan view thereof, in horizontal section on line II-Il of FIGURE l;
  • FIGURE 3 shows in enlarged scale a vertical section of a detail of the adjustable crank mechanism for driving the apparatus shown in FIGURES l and 2;
  • FIGURES 4, 5, 6 and 7 show variations of outlet ports for the separated materials
  • FIGURE 8 shows in vertical section a multiple apparatus according to the invention
  • FIGURE 9 shows in elevation another embodiment of the apparatus according to the invention.
  • FIGURE l0 is a fragmentary sectional view showing another modification.
  • the shaking apparatus comprises a preferably cylindrical vat or container 1, having a preferably slightly concave or funnel-shaped bottom 2, which is preferably dismountable, and may be replaced by differently shaped funnels, to suit the apparatus to different requirements.
  • Vat 1 is mounted upon a supporting member 3 which may be moved along an annular path in a substantially horizontal plane.
  • the revolution centre A of the annular path which is described by the vat 1 is eccentrical with respect to the centre B of said vat, as it appears from FIGURE 2.
  • the containers may be provided with a supporting member 3 mounted upon vertical pins 4 forming part of three cranks 5, whose vertical shafts 54 are mounted upon a framework 6 and are preferably coupled together, for example by means of gears 7.
  • Said cranks 5 are driven ⁇ by a motor 8 preferably through a belt drive 9.
  • the construction of the cranks 5, supporting framework 6 and gears 7 is very rough, as it is customary in machines for the dressing or sorting of ores.
  • the funnel-shaped bottom 2 of the vat 1 is preferably wide-angled, as shown, and has a central outlet port 10 the free area of which may be regulated for example by means of a adjustable conical shutter 11 carried by a lever 12 which is adjustable in different angular positions (see also FIGURE 7).
  • the outlet 10 of the funnel 2 opens above a channel or chute 13.
  • the mixture of the two solid materials to be separated or feed is fed into the vat 1, preferably together with a sufficient amount of water, by means of pipe 15, opening towards the axis of said vat, upon a conical distributing baille member 16 whose edges end in proximity ⁇ of the cylindrical walls of vat 1.
  • said mixture flows down in form of rain towards the inside periphery of said vat 1 near the edges of funnel 2. while an eccentrical gyratory movement and some shaking and vibration is imparted to said vat 1 and funnel 2, by the said described crank transmission.
  • said gyratory and shaking o-r vibratory movements the solid particles of the two materials to be separated tend to flow or settle with different settling velocities along spiral segment-like paths inclined towards the central funnel outlet port 10, but due to the difference in settling velocities, the heavy material collects itself in close contact with funnel 2, while the light material forms a top layer which collects itself above the heavy layer.
  • the whole is adjusted in such a manner that the boundary surface between the heavy material and the overlying light material cornes to be approximately at the height of the inlet of the discharge pipe 14, or a little below said inlet.
  • This condition viz, said position of the boundary surface between the light material and the underlying heavy material may be stabilized by suitably adjusting the amount of material fed, the movement (Speed and/or eccentricity A-B) of the vat 1 and the free areas of the outlets 1t), 14.
  • a continuous feed and discharge of the heavy material may be obtained through the central port 10 and a continuous discharge of the light material through pipe 14.
  • the heavy material discharged through the bottom opening is let outside the apparatus through duct 13 or the like.
  • the pipe 14 for the outlet of the light material is introduced into the vat 1 from below, through a considerably wider central opening 10 through which is discharged all around the pipe 14 also the heavy material.
  • the pipe 14 passes, without leaving a gap, through the bottom 2 of vat 1 and all around thereto, in the funnel 2, a crown of holes 110 is provided for the discharge of the heavy material.
  • the pipe 14 for the discharge of the light material penetrates into the vat 1 through the side wall thereof and is substantially horizontal or slightly inclined downwardly towards the exterior.
  • the pipe 14 for the discharge of the light material may be provided with a downwardly bent end which opens at a certain distance above the outlet port 10 of the funnel 2 from which the heavy material is discharged.
  • each crank pin 4 may be provided with an enlarged foot part 104 which is slidably mounted in a corresponding inverted-T-groove formed in crank arm or disk 5 and which may be locked in adjustable position by a nut 17.
  • FIGURE 8 there has been shown a shaking concentration apparatus according to the invention provided with a plurality of serially arranged distributing baflie cones 16 and tunnels 2 mounted in a single vat 1 provided with a single supporting member 3 to which the gyratory and shaking and vibrating motions are imparted by known means.
  • the feed is effected through pipe and the first battle cone 16 into the top funnel 2 through the bottom outlet port 10 of which the heaviest material is discharged upon the second cone 16, and so on, while the lighter material of the top layer is discharged from each funnel outside of the apparatus through a corresponding pipe 14.
  • the heavy material comes to be progressively concentrated so that from the bottom outlet 10 of the lower funnel is discharged a material which may have a very high purity degree.
  • FIGURE 9 an embodiment is shown in which the vat 1 provided with one or more funnels 2 is suspended overhead and is imparted a gyratory and shaking movement by a crank device 20-21 driven by motor 22.
  • the shaking may be increased even by slightly inclining the driving cranks.
  • a container having a wide-angled, funnel-shaped, generally horizontal bottom provided with a central outlet port,
  • said means comprising a first crank mounted on said frame for rotation about a vertical axis and pivotally connected to said container at a point offset from said vertical axis, a second crank mounted on said frame for rotation about a second vertical axis spaced from the first mentioned vertical axis and pivotally connected to said container at a point offset from said second vertical axis, drive means mounted on said frame and directly connected to said first crank for rotating same about said first vertical axis in substantially uniform fashion, and means connecting said drive means to said second crank for rotation about said second vertical axis and to allow substantially nonuniform rotary motion thereof,
  • said means connecting said drive means to said second crank comprising a plurality of idler gears.
  • a container having a wide-angled, funnel-shaped, generally horizontal bottom provided with a central outlet port,
  • drive means on said frame and connected with said container for imparting a compound circular and vibratory motion to said container, said drive means comprising mechanism for imparting substantially uniform circular horizontal motion to one portion of said container and mechanism for imparting substantially nonuniform circular horizontal motion to a remote portion of said container,
  • said mechanism for imparting nonuniform circular motion comprising a plurality of idler gears.

Landscapes

  • Centrifugal Separators (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
US424976A 1964-01-21 1965-01-12 Shaking-funnel device for the gravity concentration of solid particles Expired - Lifetime US3367499A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT155464 1964-01-21

Publications (1)

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US3367499A true US3367499A (en) 1968-02-06

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Application Number Title Priority Date Filing Date
US424976A Expired - Lifetime US3367499A (en) 1964-01-21 1965-01-12 Shaking-funnel device for the gravity concentration of solid particles

Country Status (6)

Country Link
US (1) US3367499A (de)
AT (1) AT262186B (de)
CH (1) CH445412A (de)
ES (1) ES308653A1 (de)
FR (1) FR1421968A (de)
GB (1) GB1087113A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5057211A (en) * 1988-12-19 1991-10-15 Baummer George P Benefication apparatus and process for land and seabed mining
WO1991016135A1 (en) * 1990-04-26 1991-10-31 Cosmos Systems, Inc. Particle concentrator and method of operation

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2522599B (en) * 2014-07-27 2016-01-27 Impact Lab Ltd Process for separating materials
CN107309069A (zh) * 2017-08-07 2017-11-03 解付兵 圆形摇床

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US285098A (en) * 1883-09-18 Teeeitoey
US846395A (en) * 1906-05-26 1907-03-05 Ind Gas Construction Co Gas-manufacturing apparatus.
US1065288A (en) * 1911-11-23 1913-06-17 William W Whitton Concentrator.
US1314335A (en) * 1919-08-26 Ore-concentrator
US2484203A (en) * 1947-10-21 1949-10-11 John H Beck Oscillating placer separating machine
US3019895A (en) * 1956-09-11 1962-02-06 Harvey Aluminum Inc Apparatus for separating, washing and classifying solids
US3176526A (en) * 1961-06-09 1965-04-06 Blaw Knox Co Sifters

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US285098A (en) * 1883-09-18 Teeeitoey
US1314335A (en) * 1919-08-26 Ore-concentrator
US846395A (en) * 1906-05-26 1907-03-05 Ind Gas Construction Co Gas-manufacturing apparatus.
US1065288A (en) * 1911-11-23 1913-06-17 William W Whitton Concentrator.
US2484203A (en) * 1947-10-21 1949-10-11 John H Beck Oscillating placer separating machine
US3019895A (en) * 1956-09-11 1962-02-06 Harvey Aluminum Inc Apparatus for separating, washing and classifying solids
US3176526A (en) * 1961-06-09 1965-04-06 Blaw Knox Co Sifters

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5057211A (en) * 1988-12-19 1991-10-15 Baummer George P Benefication apparatus and process for land and seabed mining
WO1991016135A1 (en) * 1990-04-26 1991-10-31 Cosmos Systems, Inc. Particle concentrator and method of operation
US5160035A (en) * 1990-04-26 1992-11-03 Cosmos Systems, Inc. Particle concentrator and method of operation

Also Published As

Publication number Publication date
GB1087113A (en) 1967-10-11
AT262186B (de) 1968-06-10
CH445412A (de) 1967-10-31
FR1421968A (fr) 1965-12-17
ES308653A1 (es) 1965-05-16

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