EP0135355A2 - Sortieren von Partikeln - Google Patents

Sortieren von Partikeln Download PDF

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Publication number
EP0135355A2
EP0135355A2 EP84305471A EP84305471A EP0135355A2 EP 0135355 A2 EP0135355 A2 EP 0135355A2 EP 84305471 A EP84305471 A EP 84305471A EP 84305471 A EP84305471 A EP 84305471A EP 0135355 A2 EP0135355 A2 EP 0135355A2
Authority
EP
European Patent Office
Prior art keywords
particles
inclined surface
gap
guides
elongate
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Withdrawn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
EP84305471A
Other languages
English (en)
French (fr)
Other versions
EP0135355A3 (de
Inventor
Marian Karol Nieora
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Publication of EP0135355A2 publication Critical patent/EP0135355A2/de
Publication of EP0135355A3 publication Critical patent/EP0135355A3/de
Withdrawn legal-status Critical Current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
    • B07B13/04—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices according to size

Definitions

  • This invention relates to the classification of particles, more specifically to classifying a mixture of particles comprising a majority of particles which have an aspect ratio not exceeding 2:1 and a nominal particle size of y and a minority of elongate particles having a length in excess of 2y to separate the elongate particles therefrom.
  • An important way of making particulate material is to comminute sheet material by means of a granulator of the kind comprising a rotor with at least one blade co- operating with at least one fixed blade to comminute the material repeatedly until the resulting particles are small enough to pass through a screen bounding the working zone.
  • the apparatus includes means for vibrating at least the inclined surface down which all particles can slide.
  • the collector is an inclined surface down which the elongate particles can slide after clearing the gap.
  • a receiver can be located below the gap and may also be an inclined surface down which those particles which fall through the gap can slide.
  • the invention also includes a method of classifying such a mixture of particles comprising sliding the individual particles of the mixture down an inclined surface towards a lower edge thereof to encounter a series of guides each spaced from its neighbour or neighbours across the width of the inclined surface by a distance not less than y nor greater than 2y and, extending beyond the lower edge of the inclined surface, and each providing a ramp surface inclined in the same direction as the inclined surface but at a smaller angle to the horizontal so that
  • Particles produced by such a method may be used as the feed material for a continuous friction actuated extrusion machine and the invention includes this use.
  • the apparatus shown in the drawing includes an inclined surface 1 with a gradient of about 20 and with upstanding side-walls 2. Separated by a uniform gap 3 from the lower edge of the inclined surface 1 and aligned with that surface is a collector 4 in similar form. A receiver 5 of any convenient form is located below the gap 3. A series of guides 6----6 is uniformly spaced across the width of the lower end of the inclined surface 1. These take the form of flat plates upstanding perpendicularly from that surface and are separated from each other and (in the case of the end guides) from the side-walls 2 by a distance equal to about 1.5 times the width of the gap 3.
  • Each guide projects about three- quarters of the way across the gap 3 and provides a ramp surface 7 which is level at its upper end with the surface and is inclined in the same direction as the surface 1 but at an angle of about 10° to the horizontal.
  • the whole apparatus is resiliently mounted and is continously vibrated with an amplitude of 0.5 mm during use.
  • the width of the gap 3 was about 6 mm.
  • This apparatus was fed with copper granules, most of which had all three independent dimensions in the range 3-5 mm but a small proportion were up to several centimetres long, at a rate low enough for the particles to travel separately down the inclined surface.
  • Substantially all particles up to about 10 mm long and some up to 13 mm long were channelled between the guides and then, on reaching the end of the inclined surface 1, fell through the gap 3 to the receiver 5.
  • the particles passing through the gap 3 to the receiver were better suited for use in a friction- actuated extrusion process than material granulated by the type of machine described until the maximum particle size falls below 10 mm.

Landscapes

  • Combined Means For Separation Of Solids (AREA)
EP84305471A 1983-08-11 1984-08-10 Sortieren von Partikeln Withdrawn EP0135355A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8321684 1983-08-11
GB838321684A GB8321684D0 (en) 1983-08-11 1983-08-11 Classifying particles

Publications (2)

Publication Number Publication Date
EP0135355A2 true EP0135355A2 (de) 1985-03-27
EP0135355A3 EP0135355A3 (de) 1986-08-20

Family

ID=10547177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84305471A Withdrawn EP0135355A3 (de) 1983-08-11 1984-08-10 Sortieren von Partikeln

Country Status (2)

Country Link
EP (1) EP0135355A3 (de)
GB (1) GB8321684D0 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668961A1 (fr) * 1990-11-12 1992-05-15 Lindemann Maschfab Gmbh Procede et dispositif pour la separation des constituants de grosseurs differents d'un melange de solides.
WO2001021329A1 (de) * 1999-09-20 2001-03-29 Hubertus Exner Vorrichtung zum ausrichten und gegebenenfalls sortieren von länglichen partikeln
CN104624507A (zh) * 2013-11-08 2015-05-20 烟台大丰轴瓦有限责任公司 一种轴瓦分拣装置
CN108726131A (zh) * 2017-04-15 2018-11-02 武鸣县南方制绳厂 一种高效的剑麻筛选机
CN109261525A (zh) * 2018-09-18 2019-01-25 安徽孺子牛轴承有限公司 一种轴承外圈分拣装置
CN112170211A (zh) * 2020-09-10 2021-01-05 和县德生农业发展有限公司 一种蔬菜种子筛选晾晒装置及其实施方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT195864B (de) * 1957-02-08 1958-02-25 Schwarz Gerhard Einrichtung zum Trennen von durch einen Siebvorgang auf eine vorbestimmte Kornbreite vorsortiertem körnigen Gut
CH492485A (de) * 1969-07-14 1970-06-30 Licenczia Talalmanyokat Erteke Maschine für das Sortieren und Klassieren von Gurken je nach Grösse

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT195864B (de) * 1957-02-08 1958-02-25 Schwarz Gerhard Einrichtung zum Trennen von durch einen Siebvorgang auf eine vorbestimmte Kornbreite vorsortiertem körnigen Gut
CH492485A (de) * 1969-07-14 1970-06-30 Licenczia Talalmanyokat Erteke Maschine für das Sortieren und Klassieren von Gurken je nach Grösse

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668961A1 (fr) * 1990-11-12 1992-05-15 Lindemann Maschfab Gmbh Procede et dispositif pour la separation des constituants de grosseurs differents d'un melange de solides.
GB2250219A (en) * 1990-11-12 1992-06-03 Lindemann Maschfab Gmbh Separating solids
WO2001021329A1 (de) * 1999-09-20 2001-03-29 Hubertus Exner Vorrichtung zum ausrichten und gegebenenfalls sortieren von länglichen partikeln
CN104624507A (zh) * 2013-11-08 2015-05-20 烟台大丰轴瓦有限责任公司 一种轴瓦分拣装置
CN104624507B (zh) * 2013-11-08 2016-06-08 烟台大丰轴瓦有限责任公司 一种轴瓦分拣装置
CN108726131A (zh) * 2017-04-15 2018-11-02 武鸣县南方制绳厂 一种高效的剑麻筛选机
CN109261525A (zh) * 2018-09-18 2019-01-25 安徽孺子牛轴承有限公司 一种轴承外圈分拣装置
CN112170211A (zh) * 2020-09-10 2021-01-05 和县德生农业发展有限公司 一种蔬菜种子筛选晾晒装置及其实施方法
CN112170211B (zh) * 2020-09-10 2022-01-04 和县德生农业发展有限公司 一种蔬菜种子筛选晾晒装置及其实施方法

Also Published As

Publication number Publication date
GB8321684D0 (en) 1983-09-14
EP0135355A3 (de) 1986-08-20

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Effective date: 19870223

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Inventor name: NIEORA, MARIAN KAROL