EP0427305A1 - Procédé et dispositif de tri - Google Patents

Procédé et dispositif de tri Download PDF

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Publication number
EP0427305A1
EP0427305A1 EP90202617A EP90202617A EP0427305A1 EP 0427305 A1 EP0427305 A1 EP 0427305A1 EP 90202617 A EP90202617 A EP 90202617A EP 90202617 A EP90202617 A EP 90202617A EP 0427305 A1 EP0427305 A1 EP 0427305A1
Authority
EP
European Patent Office
Prior art keywords
particles
endless belt
sliding friction
coefficient
speed
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.)
Withdrawn
Application number
EP90202617A
Other languages
German (de)
English (en)
Inventor
Egon Braun
Albert Kling
Karl Dr. Heil
Hans-Peter Dr. Sattler
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of EP0427305A1 publication Critical patent/EP0427305A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • the invention relates to a method and an apparatus for sorting the particles of a lumpy mixture according to their material composition using their different coefficients for sliding friction.
  • Lumpy mixed material is understood here to mean mixtures of parts, each of which essentially has a uniform material composition, but overall represents a collection of parts with a different material composition.
  • the grain size ranges of the parts are difficult to narrow down because economic aspects have to be taken into account, which in turn depend on the current monetary value of the parts to be separated. This applies in particular to the lower limit. It is obvious that the economically smallest grain size that can be used in such separation processes is much lower for precious metal particles than for steel particles, and that this lower limit shifts when the metal prices change significantly. Even the largest, sensible grain size depends primarily on economic criteria and the material value of the parts. In the case of very large parts, appropriately dimensioned transport and separating devices must be provided, and an upper limit is certainly reached if the parts can be sorted cheaper by hand.
  • Another disadvantage of the known method is that although a minimum number of screw turns is required for the slide, the number of turns upwards is not limited. If you choose a slide distance that is significantly longer than the - otherwise not exactly limited - minimum distance, the sorting result is increasingly falsified by the fact that the downward speed of the particles increases and thus also their centrifugal acceleration, until - with a correspondingly high downward speed - finally all Particles regardless of their coefficient of friction can only be prevented from further away from the screw axis by the outer wall of the device.
  • This A disadvantage would be eliminated with the upper limit of the slide distance, which, like the minimum distance, would have to be matched to the material composition of the mix, but would then lead to a fixed size in the known device. which would only be adaptable to mixed materials with a different amount of effort.
  • the object is therefore to propose a method and a device for sorting the particles of a lumpy mixed material using their different coefficients for sliding friction, in which the disadvantages mentioned cannot occur.
  • a device which is characterized by a storage container, a vibrating trough, an essentially horizontally rotating endless belt with two deflecting rollers and a controllable drive, at least one deflector arranged adjustably in the region of the throwing parabola and at least two Collecting container for the particles of the mix sorted according to different coefficients of sliding friction.
  • the idea of the invention can also be implemented in a system in which at least two devices according to claims 7 to 11 for a cascade-like material flow are arranged one after the other.
  • a preferred application of the method and the device results in the separation of metal particles from a shredder scrap fraction from which the ferromagnetic particles have already been separated and which essentially still contains parts made of rubber, plastic and non-ferrous metals.
  • FIG. 1 shows a side view of a device for carrying out the method according to the invention in a highly simplified manner. It consists of a storage container (1), a vibrating trough (2), an essentially horizontally rotating endless belt (3) with two deflection rollers (4) and a controllable drive (5).
  • a deflector (6) is arranged in the dotted parabola area, which is set to the desired sorting result when the device is retracted.
  • the resulting fractions are collected in the collecting containers (7, 8).
  • elastic shocks as a result of the application of the particles to the endless belt (3) should be damped by means of the support (9), so that the particles do not rebound but remain in contact with the endless belt over the entire distance (A).
  • the length of this distance (A) required for the acceleration of the particles can be adjusted in a simple manner to the respective requirements by either moving the endless belt (3) to the left relative to the vibrating trough (2) or the vibrating trough (2) relative to the endless belt (3 ) is shifted to the right.
  • the belt speed is infinitely variable, so that the device can be adjusted to a wide range of applications.
  • the method and device can be used in all cases in which a lumpy mixture is present, the particles of which are to be separated from one another differ sufficiently in coefficient for the sliding friction.
  • An example of a sorting problem that can be solved under these conditions is the separation of metal particles from a lumpy shredded scrap fraction, from which the ferromagnetic particles have already been separated and which essentially still contain particles made of rubber, plastic and metal. Since there has so far been no technically and economically acceptable process for separating the metal particles consisting of aluminum, copper, lead, tin, zinc and non-magnetic stainless steel therefrom and reusing them, this fraction, because of its high calorific value, will be used for the last time in the context of waste incineration fed. Afterwards, the metals are found in the ashes and in the filter dust, so that they can only be stored in expensive special landfills.
  • the setting of the method according to the invention must be such that a metal-free residual fraction is achieved in any case.
  • Rubber and many types of plastic have a coefficient of friction which is about twice as great as metal (about 0.6 compared to about 0.3 in the case of dry friction, for example against impregnated polyester fabric), ie these two groups of materials are special for separation by the process according to the invention well suited. In any case, it is possible to obtain a metal-free fraction.
  • the shredder scrap fraction also contains particles with similar friction coefficients to metals, on the other hand, no residual fraction consisting only of metals can be achieved. It always contains non-metallic components and has to be processed in another way - for example by separating melts - or sent to a special landfill.
  • the method according to the invention was applied to shredder scrap with a grain size of 15 to 33 mm.
  • the endless belt consisted of polyester fabric and ran at a speed of 5 m / s.
  • the diameter of the deflection roller at the discharge end was 160 mm and the horizontal distance between the feed point and the axis of the deflection roller was 340 mm.
  • Two deflectors were installed in the parabolic area with a horizontal, vertical distance of 190 / + 20 mm or 590 / -285 mm from the axis of the deflection roller. Accordingly, the total amount of shredder scrap used of 20.2 kg was divided into three fractions.
  • the first device seen in the direction of flight contained 11.4 kg of metallic parts and 3.0 kg of non-metallic parts. In the second device the ratio was 1.4 to 2.1 kg and in the third 0.1 to 2.2 kg.

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  • Combined Means For Separation Of Solids (AREA)
EP90202617A 1989-11-09 1990-10-02 Procédé et dispositif de tri Withdrawn EP0427305A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3937265 1989-11-09
DE3937265A DE3937265A1 (de) 1989-11-09 1989-11-09 Sortierverfahren und -vorrichtung

Publications (1)

Publication Number Publication Date
EP0427305A1 true EP0427305A1 (fr) 1991-05-15

Family

ID=6393161

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90202617A Withdrawn EP0427305A1 (fr) 1989-11-09 1990-10-02 Procédé et dispositif de tri

Country Status (6)

Country Link
US (1) US5064076A (fr)
EP (1) EP0427305A1 (fr)
JP (1) JPH03186384A (fr)
AU (1) AU6591290A (fr)
CA (1) CA2028728A1 (fr)
DE (1) DE3937265A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2483511C1 (ru) * 2011-11-01 2013-06-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Курская государственная сельскохозяйственная академия имени профессора И.И. Иванова Министерства сельского хозяйства Российской Федерации Устройство для очистки семян
CN106881270A (zh) * 2017-04-11 2017-06-23 四川南格尔生物科技有限公司 一种滴斗与废料分离设备及分离的方法
CN111065469A (zh) * 2017-07-06 2020-04-24 塞纳科有限公司 蚊子的性别分选
CN112044782A (zh) * 2020-09-22 2020-12-08 灵璧县飞松机械制造有限责任公司 一种谷物比重筛
CN112845101A (zh) * 2021-01-04 2021-05-28 太原理工大学 一种井下利用高速带式输送机分离煤与矸石的方法和装置

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* Cited by examiner, † Cited by third party
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DE4134759A1 (de) * 1991-10-22 1993-04-29 Bayer Ag Verfahren und vorrichtung zum sortieren von partikeln nach ihrer kornform
ES2108593B1 (es) * 1992-03-26 1998-07-16 Univ Politecnica De Cataluna P Separador de materias en el proceso de obtencion de azucar a partir de remolacha.
US6353061B1 (en) 1993-05-26 2002-03-05 Dentsply Gmbh α, ω-methacrylate terminated macromonomer compounds
US5998499A (en) 1994-03-25 1999-12-07 Dentsply G.M.B.H. Liquid crystalline (meth)acrylate compounds, composition and method
US6369164B1 (en) 1993-05-26 2002-04-09 Dentsply G.M.B.H. Polymerizable compounds and compositions
CA2146816A1 (fr) 1994-04-22 1995-10-23 Joachim E. Klee Methode et composition pour la preparation d'un produit polymerique dentaire
GB2313071A (en) * 1996-05-14 1997-11-19 Biomass Recycling Ltd Material separating system
US8021483B2 (en) * 2002-02-20 2011-09-20 Hemlock Semiconductor Corporation Flowable chips and methods for the preparation and use of same, and apparatus for use in the methods
US7270706B2 (en) * 2004-10-04 2007-09-18 Dow Corning Corporation Roll crusher to produce high purity polycrystalline silicon chips
CN102974533A (zh) * 2012-12-26 2013-03-20 镇江市科瑞制样设备有限公司 一种筛分装置
CN110743800A (zh) * 2019-09-25 2020-02-04 河南中烟工业有限责任公司 一种梗丝分选装置及分选方法
CN112808595A (zh) * 2019-11-15 2021-05-18 新沂新南资源综合利用技术研究院有限公司 一种快速制造弃土粉末造粒装置

Citations (6)

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GB258833A (en) * 1925-09-26 1927-01-27 Alfred Maguin Soc Ets A device for the recovery of the radicles and small waste products from beetroots
US2212264A (en) * 1937-04-29 1940-08-20 Jr Thomas F Downing Cleaning coal
GB892841A (en) 1957-01-24 1962-04-04 William John Whitsed Improvements in or relating to separating apparatus for roots, tubers and the like
DE2461492A1 (de) 1973-12-26 1975-07-10 Richard D Stafford Vorrichtung und verfahren zum trennen von teilchen mit verschiedenen reibungskoeffizienten
WO1986000031A1 (fr) 1984-06-07 1986-01-03 Urban Hage Procede et appareil pour separer des particules de metal
DE3710335A1 (de) * 1987-03-28 1988-10-06 Lindemann Maschfab Gmbh Vorrichtung zum trennen von nichtmetallen und nichteisenmetallen aus einer materialmischung

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US23153A (en) * 1859-03-08 booth
DE56453C (de) * C. JACKSON in Berks, Pennsylvania, V. St. A Kantenverbindung mittelst zweier Drahtschrauben und hindurch geführter Verbindungsstange
US1354063A (en) * 1919-08-07 1920-09-28 Clarence Q Payne Apparatus for grading finely-comminuted materials
US2212265A (en) * 1938-04-01 1940-08-20 Jr Thomas F Downing Separation of bodies of different physical properties
US2302532A (en) * 1941-06-06 1942-11-17 Jr Thomas F Downing Separation of bodies of different physical properties
GB1454989A (en) * 1972-10-06 1976-11-10 Nat Res Dev Separation method and apparatus
JPS529170A (en) * 1975-07-14 1977-01-24 Ishikawajima Harima Heavy Ind Co Ltd Grading apparatus
JPH02501203A (ja) * 1987-09-17 1990-04-26 キプロス・インダストリアル・ミネラルズ・カンパニー 粒状材料の摩擦仕分け方法及び装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB258833A (en) * 1925-09-26 1927-01-27 Alfred Maguin Soc Ets A device for the recovery of the radicles and small waste products from beetroots
US2212264A (en) * 1937-04-29 1940-08-20 Jr Thomas F Downing Cleaning coal
GB892841A (en) 1957-01-24 1962-04-04 William John Whitsed Improvements in or relating to separating apparatus for roots, tubers and the like
DE2461492A1 (de) 1973-12-26 1975-07-10 Richard D Stafford Vorrichtung und verfahren zum trennen von teilchen mit verschiedenen reibungskoeffizienten
WO1986000031A1 (fr) 1984-06-07 1986-01-03 Urban Hage Procede et appareil pour separer des particules de metal
DE3710335A1 (de) * 1987-03-28 1988-10-06 Lindemann Maschfab Gmbh Vorrichtung zum trennen von nichtmetallen und nichteisenmetallen aus einer materialmischung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2483511C1 (ru) * 2011-11-01 2013-06-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Курская государственная сельскохозяйственная академия имени профессора И.И. Иванова Министерства сельского хозяйства Российской Федерации Устройство для очистки семян
CN106881270A (zh) * 2017-04-11 2017-06-23 四川南格尔生物科技有限公司 一种滴斗与废料分离设备及分离的方法
CN111065469A (zh) * 2017-07-06 2020-04-24 塞纳科有限公司 蚊子的性别分选
US11723349B2 (en) 2017-07-06 2023-08-15 Senecio Ltd. Method and apparatus for sex sorting of mosquitoes
CN112044782A (zh) * 2020-09-22 2020-12-08 灵璧县飞松机械制造有限责任公司 一种谷物比重筛
CN112845101A (zh) * 2021-01-04 2021-05-28 太原理工大学 一种井下利用高速带式输送机分离煤与矸石的方法和装置

Also Published As

Publication number Publication date
US5064076A (en) 1991-11-12
DE3937265A1 (de) 1991-05-16
AU6591290A (en) 1991-05-16
CA2028728A1 (fr) 1991-05-10
JPH03186384A (ja) 1991-08-14

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