US3899416A - Sorting device separating a powder mixture into spheroidal and sharp-edged particles - Google Patents

Sorting device separating a powder mixture into spheroidal and sharp-edged particles Download PDF

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Publication number
US3899416A
US3899416A US410686A US41068673A US3899416A US 3899416 A US3899416 A US 3899416A US 410686 A US410686 A US 410686A US 41068673 A US41068673 A US 41068673A US 3899416 A US3899416 A US 3899416A
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Prior art keywords
sorting device
cascade
angle
particles
separating
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Expired - Lifetime
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US410686A
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English (en)
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Gunther Schwartz
Klaus Frank
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Hoechst AG
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Hoechst AG
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    • 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
    • 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

Definitions

  • ABSTRACT Sorting device for the separation of a powder mixture into spheroidal particles and sharp-edged particles.
  • the device comprises an inclined cascade-sorting channel or tunnel, a vibrating chute above the upper end of the channel or tunnel and receiving means collecting spheroidal and sharp-edged particles, respectively, the said means being placed below the lower end of the channel or tunnel.
  • the cascade-sorting channel or tunnel comprises more particularly an elongated container, which has an inlet disposed at its upper end and has outlets disposed at its lower end.
  • a plurality of separating cascade members which have a length l, are spaced apart at intervals 11, are disposed at different levels at separations h and are inclined at an angle B, with respect to the horizontal, are secured to the side walls of the container, and a separating 11 Claims, 2 Drawing Figures SORTING DEVICE SEPARATINGIA MIXTURE INTO SPHEROIDAL AND SHARP-EDGED PARTICLES
  • the present invention relates to a sorting device adapted to separate a powder blend into spheroidal particles and sharp-edged particles.
  • powder consisting of either spheroidal particles or sharp-edged particles by the selection of appropriate working conditions, including temperature, chemical composition of the melt, atomization-inducing means, and nozzle configuration.
  • a sorting device for the separation of a powder mixture into spheroidal particles and sharp-edged particles, comprising an inclined cascade-sorting channel or tunnel, a vibrating chute positioned above the upper end of the cascade-sorting channel or tunnel and receiving means collecting spheroidal particles and sharp-edged particles, respectively, the receiving means being placed below the lower end. of the cascade-sorting channel or tunnel.
  • the cascade sorting channel or tunnel to comprise an elongated container, which has an inlet disposed at its upper end and has outlets disposed at its lower end; for a plurality of separating cascade members having a length 1 to be secured to the side walls of the container, to be spaced apart at intervals a, to be disposed at different levels at separations h, and to be inclined under an angle ,8 with respect to the horizontal; and for a separating plate to be positioned near the lower end of the container.
  • angle of inclination a e.g. for the angle of inclination a to comprise an angle between 10 and 50, preferably between 15 and 30, with respect to the horizontal;
  • angle B f. for the angle B to comprise an angle between 3 and 20, preferably between 4 and 8, with respect to the horizontal;
  • a feed funnel i. for a feed funnel to be mounted above the magnetic gutter.
  • the angle of inclination B selected for the separating cascade members, and the width of the gaps provided therebetween, can have any values compatible with the requirements of the separation operation in question.
  • angle of inclination B it is appropriate for the angle of inclination B to be decreased for an increasing diameter of the powder particles, and for the gaps to be made wider.
  • an oscillatory motion can be imparted to the cascade sorting channel or tunnel. This is to be recommended inasmuch as it can prevent sharp-edged particles from lying still on the bottom of the cascade sorting channel or tunnel, and inasmuch as it can promote a regular distribution of the material travelling thereover.
  • FIG. 1 is a side view of the sorting device along line l- 1 of FIG. 2; and A FIG. 2 is a top view of the sorting device.
  • a vibrating chute 2 which has a feed funnel 3 mounted thereabove, is positioned above an inlet 4 opening into an elongated container 7 provided with outlets 12 and 13.
  • the separating cascade members are inclined with respect to the horizontal at an angle ,8 which may suitably be between 3 and Placed below the cascade-sorting tunnel 1 is a supporting frame 14, which affords an inclined supporting plane, disposed at an angle a which may suitably be between and 50 with respect to the horizontal.
  • the angle a can be adjusted by means of a prop 15, which has a series of apertures spaced along its length and which is pivoted on the horizontal member of the supporting frame 14.
  • receptacles 10 and 11 Placed below the outlets 12 and 13 there are receptacles 10 and 11 which are intended to receive spheroidal and sharp-edged particles respectively.
  • EXAMPLE 1 A cascade-sorting tunnel 1,000 mm wide and com prising ten separating cascade members 5 and nine braking aprons 16 was used. The separating cascade members 5 were spaced apart at intervals a of 10 mm,
  • the separating cascade members 5 were inclined at an angle ,8 of 4, and the supporting frame 14 was inclined at an angle a of 21.8".
  • the sorting device was fed with 100 kg per hour of steel particles having sizes between 0.1 and 0.6 mm.
  • the particles comprised 50% of spheroidal material, 20% sharp-edged material and 30% of material of an intermediate grade.
  • Receptacle 11 was found to contain 51.8 kg of final product, of which 95.2% consisted of sharp-edged particles and intermediate grade material. The remaining 4.8% 2.4 kg) consisted of spheroidal particles.
  • EXAMPLE 2 The same sorting device was used as in Example 1, except that the supporting frame 14 was inclined at a slightly smaller angle a of l9.7. The device was fed with 500 kg per hour of steel particles with sizes between 0.9 and 1.3 mm, of which 54.8% was spheroidal material, 19.2% was sharp-edged material and 26% was intermediate grade material.
  • Receptacle 11 contained kg of final product, of which 1.1% (*3 kg) consisted of spheroidal particles.
  • EXAMPLE 3 A cascade-sorting tunnel 240 mm wide and comprising 10 separating cascade members 5 and nine braking aprons 16 was used.
  • the separating cascade members were spaced apart at intervals a of 5 mm, were disposed at different levels at separations I1 of 7 mm, and had a length l of 100 mm; the separating cascade members 5 were inclined at an angle B of 8, and the supporting frame 14 was inclined at an angle a of 25.
  • the sorting device was fed with 10 kg per hour of steel particles having sizes between 0.05 and 0.2 mm, of which 75% was spheroidal material, 3% was sharpedged material and 22% was intermediate grade material.
  • Receptacle 10 was found to contain 7.2 kg of final product, of which more than 99% consisted of spheroidal particles and less than 1% of intermediate grade material.
  • Receptacle 11 contained 2.8 kg of final product of which 89.2% consisted of sharp-edged particles and intermediate grade material, and 10.8% 0.3 kg) consisted of spheroidal particles.
  • a sorting device for separating a powder into spheroidal particles and sharp-edged particles, wherein a plurality of separating cascade members are spaced apart, are disposed at successively lower levels and are inclined with respect to the horizontal so as to form an inclined cascade-sorting tunnel, and are secured to the side walls of an elongated container having an inlet disposed at its upper end and outlets disposed at its lower end; the sorting device comprising braking aprons secured above the separating-cascade members to form interposed between the container and the frame, and
  • the braking aprons being disposed over the spaces between the cascade members.

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  • Combined Means For Separation Of Solids (AREA)
US410686A 1972-10-31 1973-10-29 Sorting device separating a powder mixture into spheroidal and sharp-edged particles Expired - Lifetime US3899416A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2253353A DE2253353A1 (de) 1972-10-31 1972-10-31 Sortiereinrichtung

Publications (1)

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US3899416A true US3899416A (en) 1975-08-12

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US410686A Expired - Lifetime US3899416A (en) 1972-10-31 1973-10-29 Sorting device separating a powder mixture into spheroidal and sharp-edged particles

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US (1) US3899416A (enrdf_load_stackoverflow)
BE (1) BE806654A (enrdf_load_stackoverflow)
DE (1) DE2253353A1 (enrdf_load_stackoverflow)
FR (1) FR2280442A1 (enrdf_load_stackoverflow)
GB (1) GB1432491A (enrdf_load_stackoverflow)
IT (1) IT994471B (enrdf_load_stackoverflow)
NL (1) NL7314010A (enrdf_load_stackoverflow)
ZA (1) ZA738084B (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300921A (en) * 1980-03-04 1981-11-17 Rexnord, Inc. Apparatus and method for removing finely divided solids from gases
US5791493A (en) * 1996-07-26 1998-08-11 Memc Electronic Materials, Inc. Polysilicon particle classifying apparatus
EP1279450A1 (fr) * 2001-07-26 2003-01-29 I.P.S. Industrie des Poudres Sphériques S.A. Dispositif de production de billes sphériques
FR2828418A1 (fr) * 2001-08-10 2003-02-14 Ind Des Poudres Spheriques Dispositif de selection de billes spheriques
US20100170832A1 (en) * 2006-11-20 2010-07-08 Hitachi Metals, Ltd. Device and method of screening for individual balls
JP2014200785A (ja) * 2013-04-07 2014-10-27 株式会社オハラ 物品分類装置、物品分類方法、及び光学素子製造装置
WO2018158337A1 (en) * 2017-02-28 2018-09-07 Koninklijke Philips N.V. Systems and method for generating dry particles from a liquid solution
EP3401005A1 (en) * 2017-05-08 2018-11-14 Koninklijke Philips N.V. Systems and method for generating dry particles from a liquid solution
CN109702212A (zh) * 2018-12-29 2019-05-03 西安欧中材料科技有限公司 一种快速分离金属球形粉末中的异形粉的装置及使用方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0154599A1 (de) * 1984-03-01 1985-09-11 Maschinenfabrik Bezner GmbH & Co. KG Sortiereinrichtung insbesondere zur Aussortierung von Wertstoffen aus Hausmüll, Gewerbemüll, Sperrmüll, Trockenmüll, und/oder von Problem- und Gefahrenstoffen
DE8816855U1 (de) * 1988-04-19 1990-10-18 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Kugeltrenneinrichtung
RU2280515C2 (ru) * 2003-12-11 2006-07-27 Олег Михайлович Курепин Устройство управления скоростью транспортирования сухой смеси на виброконвейере

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US171502A (en) * 1875-12-28 Improvement in seed-separators
US773928A (en) * 1904-02-11 1904-11-01 Cyrus W Colvin Separator.
US2549316A (en) * 1948-04-24 1951-04-17 Gen Electric Sorting apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US171502A (en) * 1875-12-28 Improvement in seed-separators
US773928A (en) * 1904-02-11 1904-11-01 Cyrus W Colvin Separator.
US2549316A (en) * 1948-04-24 1951-04-17 Gen Electric Sorting apparatus

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4300921A (en) * 1980-03-04 1981-11-17 Rexnord, Inc. Apparatus and method for removing finely divided solids from gases
US5791493A (en) * 1996-07-26 1998-08-11 Memc Electronic Materials, Inc. Polysilicon particle classifying apparatus
EP1279450A1 (fr) * 2001-07-26 2003-01-29 I.P.S. Industrie des Poudres Sphériques S.A. Dispositif de production de billes sphériques
US6676890B2 (en) 2001-07-26 2004-01-13 Industrie Des Poudres Spheriques Device for producing spherical balls
FR2828418A1 (fr) * 2001-08-10 2003-02-14 Ind Des Poudres Spheriques Dispositif de selection de billes spheriques
US20100170832A1 (en) * 2006-11-20 2010-07-08 Hitachi Metals, Ltd. Device and method of screening for individual balls
US9016479B2 (en) * 2006-11-20 2015-04-28 Hitachi Metals, Ltd. Device and method of screening for individual balls
JP2014200785A (ja) * 2013-04-07 2014-10-27 株式会社オハラ 物品分類装置、物品分類方法、及び光学素子製造装置
WO2018158337A1 (en) * 2017-02-28 2018-09-07 Koninklijke Philips N.V. Systems and method for generating dry particles from a liquid solution
EP3401005A1 (en) * 2017-05-08 2018-11-14 Koninklijke Philips N.V. Systems and method for generating dry particles from a liquid solution
CN109702212A (zh) * 2018-12-29 2019-05-03 西安欧中材料科技有限公司 一种快速分离金属球形粉末中的异形粉的装置及使用方法
CN109702212B (zh) * 2018-12-29 2022-04-12 西安欧中材料科技有限公司 一种快速分离金属球形粉末中的异形粉的装置及使用方法

Also Published As

Publication number Publication date
IT994471B (it) 1975-10-20
ZA738084B (en) 1974-10-30
BE806654A (fr) 1974-04-29
FR2280442B1 (enrdf_load_stackoverflow) 1979-07-27
DE2253353A1 (de) 1974-07-11
FR2280442A1 (fr) 1976-02-27
NL7314010A (enrdf_load_stackoverflow) 1974-05-02
GB1432491A (en) 1976-04-14

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