EP1591172B1 - Procédé et dispositif d'élimination de corps étrangers d'un flux de matière - Google Patents

Procédé et dispositif d'élimination de corps étrangers d'un flux de matière Download PDF

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Publication number
EP1591172B1
EP1591172B1 EP05004869A EP05004869A EP1591172B1 EP 1591172 B1 EP1591172 B1 EP 1591172B1 EP 05004869 A EP05004869 A EP 05004869A EP 05004869 A EP05004869 A EP 05004869A EP 1591172 B1 EP1591172 B1 EP 1591172B1
Authority
EP
European Patent Office
Prior art keywords
channel
foreign
material flow
detection device
body detection
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.)
Not-in-force
Application number
EP05004869A
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German (de)
English (en)
Other versions
EP1591172A1 (fr
Inventor
Harry Drewes
Frank Schuster
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.)
Hauni Primary GmbH
Original Assignee
Hauni Primary GmbH
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 Hauni Primary GmbH filed Critical Hauni Primary GmbH
Priority to PL05004869T priority Critical patent/PL1591172T3/pl
Publication of EP1591172A1 publication Critical patent/EP1591172A1/fr
Application granted granted Critical
Publication of EP1591172B1 publication Critical patent/EP1591172B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/39—Tobacco feeding devices
    • A24C5/396—Tobacco feeding devices with separating means, e.g. winnowing, removing impurities
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B1/00—Preparation of tobacco on the plantation
    • A24B1/04—Sifting, sorting, cleaning or removing impurities from tobacco
    • 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
    • B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
    • B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
    • 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
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
    • B07C5/365—Sorting apparatus characterised by the means used for distribution by means of air using a single separation means

Definitions

  • the invention relates to a method and a device for foreign body separation from a stream of material, in particular a tobacco stream.
  • a device is known in which by means of conveyors, in particular a conveyor trough and conveyor belts, a tobacco stream is spent in the region of an optical foreign body detection device. Once a foreign body is detected in the tobacco stream by means of the foreign body detection device, the or the foreign body from the tobacco stream are separated by means of compressed air transversely to the conveying direction.
  • This object is achieved by a method for foreign body separation from a stream of material, in particular a tobacco stream, wherein at least a portion of the material of the material stream is conveyed in the form of a stream of partial material in the region of a foreign body detection device, wherein by means of the foreign body detection device, in particular based on at least one property, foreign body in Partial material flow are detected and then removed from the partial flow of material, which is formed upstream of the foreign body detection device, the partial flow of material by a visual step by means of an air flow and is conveyed by means of the air flow in the region of the foreign body detection device.
  • triggering or depositing a fraction or part of the material from the material flow is a visual step to understand that provides sufficient air resistance and is sufficiently light to be able to be solved at a given or predeterminable air flow rate from the flow of material can and be removed from this.
  • the material is preferably singulated. Upstream is to be understood in the context of the invention, in particular with regard to the conveying direction of the flow of partial material.
  • the foreign bodies are recognized by at least one property, such as brightness, color, humidity, or dielectric properties, to name but a few.
  • the speed of the air flow is or is increased at least in the region of the foreign body recognition device by means of a channel and / or suction channel having at least a section of reduced cross-sectional area, a better recognition rate of foreign bodies is made possible.
  • the channel preferably has a closed or substantially closed cross section.
  • An increase in the velocity of the air stream is particularly efficient and can be realized simply by virtue of the channel having a decreasing cross-sectional area at least in sections, in particular in the region of the foreign body recognition device. If the partial material flow is guided curved at least in sections, in particular in the region of the foreign body recognition device, it is possible in a simple manner to produce a partial material flow which has a small depth, whereby in particular an optical recognition device can be operated very efficiently.
  • the partial flow of material is performed at least in sections in an S-curve.
  • the partial material flow is deflected at least in sections, in particular in the area of the foreign body recognition device, by a further air flow, window materials or inner walls of the channel can be spared.
  • the partial flow of material is passed, in particular, from the window, which is preferably designed as a viewing window for the foreign body recognition device. This avoids that the window the abrasive effect of the material flow is added.
  • the object is further achieved by a device for foreign body separation from a stream of material, in particular a tobacco stream, with a material flow conveyor, a foreign body detection device and a FremdMechabscheidevoriques, wherein a transverse to the material flow conveyor arranged viewing device is provided, wherein the foreign body detection device is disposed after the viewing device and in Connected thereto, the foreign body separation device, which is further developed in that by means of the sighting device, a partial material flow from the material flow is releasable and transportable to the foreign body detection device.
  • the viewing device comprises a channel.
  • a channel By this measure, an efficient management of the partial material flow is given.
  • the channel extends into the region of the foreign body detection device, very accurate detection of foreign matter is possible.
  • extending the channel into the region of the foreign body recognition device understood that the channel extends in the field of foreign body detection past a foreign body detection device.
  • a suction channel connects to the channel.
  • the channel and the suction channel can be arranged adjacent to one another or can also be a single device or a single element.
  • the suction channel may also extend into the area of recognition of foreign bodies.
  • the channel may include or be the suction channel.
  • the channel and / or the suction channel at least partially have a reduced cross-sectional area, the velocity of the partial material flow is uniform and defined there, so that an improved foreign body detection and foreign body separation is made possible, because the Operamaterialsgtrom is arranged substantially uniformly.
  • the reduced cross-sectional area is to be understood in the context of the invention in particular in relation to the cross-sectional area on the input side of the viewing channel or channel. By reducing the cross-sectional area, the velocity of the partial material flow increases.
  • the channel and / or the suction channel are at least partially curved, a particularly good foreign body recognition is possible.
  • the foreign body detection is further improved by the fact that the channel and / or the suction channel is at least partially S-shaped.
  • a particularly simple realization of a foreign body recognition device is provided if at least one window in the channel and / or in the suction channel is provided in the region of the foreign body recognition device.
  • a side channel is provided, the air flow inside the channel and / or the suction channel along allows at least one window, a long life of the window is guaranteed.
  • the term side channel also includes the term air nozzle.
  • Fig. 1 shows a schematic cross-sectional view of a device according to the invention for foreign body deposition from a tobacco stream 11.
  • the tobacco stream 11 is applied to a conveyor belt 10.
  • the tobacco stream 11 is conveyed in the conveying direction 10 'on the conveyor belt 10.
  • an air flow generating device such as a pump, in the lower and / or upper region of the channel 23 or suction channel 46, which sucks the air from a channel 23 and a suction channel 46 and / or blows into a channel 23, an air flow 21 is generated which permits sifting of the tobacco stream 11 entering the channel 23.
  • the speed of the air flow can be between 2 m / s and 30 m / s (preferably between 5 m / s and 17 m / s).
  • a correspondingly adjustable or predeterminable speed of the air flow 21 are components of the tobacco stream 11 in the form of tobacco 12 and foreign matter 13, which are sufficiently light or have a sufficiently large air resistance to the gravity of the tobacco stream 11 in Fig.
  • the tobacco sub-stream 15 enters the region of a foreign-body recognition device 16, which in this embodiment is a foreign-body optical recognition device, for example one comprising a laser and a light beam 17 Window 18 in the channel 23 sends and the reflected light by means of a photosensitive detector, a CCD (charged coupled device), photomultiplexer or a camera receives and compares with predetermined values, such as brightness or color widths. As a result, foreign bodies can be detected accordingly.
  • a foreign-body recognition device 16 for example one comprising a laser and a light beam 17
  • Window 18 in the channel 23 sends and the reflected light by means of a photosensitive detector, a CCD (charged coupled device), photomultiplexer or a camera receives and compares with predetermined values, such as brightness or color widths.
  • predetermined values such as brightness or color widths.
  • a detected foreign body 13 can pass through a flow of air 20 emerging from the nozzle 19 after a determinable time has elapsed the tobacco part stream 15 are excreted.
  • the conveyor belt 10 is gem. of the Fig. 1 configured to extend to the channel 23.
  • Fig. 2 is also a schematic cross-sectional view of another embodiment of a device according to the invention for foreign body separation shown.
  • the conveying element of the tobacco stream 11 is a conveying channel 30 into which the tobacco 12 and the foreign bodies 13 are conveyed by means of compressed air or an air stream.
  • a nozzle 31 is shown, which generates an air stream 32, which allows the sighting.
  • the tobacco and foreign body constituents of the tobacco partial stream 15 are pulled apart and by the taper the tobacco partial stream is also pushed together or compacted in the depth, so that an overall increased foreign body recognition efficiency is given.
  • the material which is not in the partial stream 15, such as heavy tobacco 12 ', for example ribs, is conveyed in the conveying channel 30 to the left for further processing.
  • Fig. 3 shows a schematic three-dimensional representation of a portion of a device according to the invention for foreign body separation, wherein the channel 23 is shown with a subsequent suction channel 46. Also shown is a tapered portion 40 and a reduced cross sectional area portion 41. In this reduced cross sectional area portion 41, the viewing window for the foreign body detection device 16 is shown.
  • a foreign-body recognition device based on physical parameters other than optics may be used, such as microwaves or ultrasound.
  • nozzle 19 used for foreign body separation and corresponding flaps can be used.
  • Fig. 4 shows a further embodiment of a channel 23 in a schematic three-dimensional representation, wherein the channel 23 is followed by a suction channel 46.
  • the channel 23 may also include the suction channel 46, so that this is a one-piece Element acts.
  • a portion of the channel 23 and a portion of the suction channel 46 is shown, which is referred to as increasing section 43.
  • the desired and predeterminable average velocity of the tobacco partial stream 15 and the velocity distribution of the tobacco 12 and the foreign body 13 in the tobacco partial stream 15 can be optimized.
  • the mathematical derivation of the edge functions of the channel 23 or of the suction channel 46 is continuous in sections in this exemplary embodiment.
  • Fig. 6 shows a suction channel 46 and a channel 23 in a schematic cross-sectional view, wherein this channel is curved.
  • a one-sided concern or Vorbeistich the product stream or tobacco partial stream 15 is achieved on a wall.
  • the height variation or depth variation is greatly reduced, so that an improved foreign body detection efficiency is enabled.
  • Fig. 7 shows a shape of the channel 23 and 46 with alternating curvature or with an S-curve and mutual concern of the tobacco sub-stream and the tobacco and the foreign body first to the one and then to the opposite wall. This allows shortly after two windows 18 a two-sided observation of the product and thus an improved foreign body detection.
  • Fig. 8 shows a further embodiment of the channel 23 and the suction channel 46, in which a two-sided observation is possible.
  • the tobacco partial flow is flying 15 or the tobacco 12 and the foreign body 13 with low height variation close to one of the two windows 18, 18 'namely in this case the window 18' over, while it can be observed simultaneously through the opposite window 18.
  • an additional air flow 44 which is passed through a nozzle or through a side channel 45 to the window 18 'over, scratching the close to the tobacco stream 15 adjacent window can be avoided. It is a kind of air-knive principle.
  • a particularly good separation of the material from the material flow and in particular of tobacco from a stream of tobacco can be achieved.
  • a particularly suitable position for the propagation of the material is immediately after the sighting device or after the sifting.
  • By narrowing the cross-section or the cross-sectional area of the channel 23 or of the suction channel 46 it is possible to achieve a standardization of the airflow velocity and thus the velocity of the constituents of the tobacco partial stream.
  • a suitable shape as mentioned above is preferable. Due to the curvature of the suction channel 46 or the channel 23 at least in the region of the recognition device, the height variation or depth variation is reduced.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Sorting Of Articles (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Air Transport Of Granular Materials (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Fish Paste Products (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Spectrometry And Color Measurement (AREA)

Claims (16)

  1. Procédé d'élimination de corps étrangers d'un flux de matière (11, 15), en particulier d'un flux de tabac (11, 15), au moins une partie de la matière (12, 12', 13) du flux de matière (11, 15) étant transportée sous la forme d'un flux de matière partiel (15) dans la zone d'un dispositif (16, 17, 18) de détection de corps étrangers, des corps étrangers (13) étant détectés dans le flux de matière partiel (15) au moyen du dispositif (16-18) de détection de corps étrangers et ensuite éliminés du flux de matière partiel (15), caractérisé en ce qu'en amont du dispositif (16-18) de détection de corps étrangers le flux de matière partiel (15) est formé par une étape de triage au moyen d'un flux d'air (21, 32) et, est transporté, au moyen du flux d'air (21, 32), dans la zone du dispositif (16, 17, 18) de détection de corps étrangers.
  2. Procédé selon la revendication 1, caractérisé en ce que la vitesse du flux d'air (21, 32) est augmentée, au moins dans la zone du dispositif (16-18) de détection de corps étrangers, par le biais d'un canal et/ou canal d'aspiration présentant, au moins par tronçons, une section transversale réduite.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le flux de matière partiel (15) est guidé dans un canal (23).
  4. Procédé selon la revendication 3, caractérisé en ce que le canal (23) présente, au moins par tronçons (40), en particulier dans la zone du dispositif (16-18) de détection de corps étrangers, une section transversale (42) allant en diminuant.
  5. Procédé selon la revendication 3 ou 4, caractérisé en ce que le flux de matière partiel (15) est guidé de manière incurvée, au moins par tronçons, en particulier dans la zone du dispositif (16-18) de détection de corps étrangers.
  6. Procédé selon la revendication 5, caractérisé en ce que le flux de matière partiel (15) est guidé, au moins par tronçons, suivant une courbe en S.
  7. Procédé selon l'une ou plusieurs des revendications 1 à 6, caractérisé en ce que le flux de matière partiel (15) est dévié, au moins par tronçons, en particulier dans la zone du dispositif (16-18) de détection de corps étrangers, par un autre flux d'air (44).
  8. Dispositif d'élimination de corps étrangers d'un flux de matière (11, 15), en particulier un flux de tabac (11, 15), comprenant un convoyeur de flux de matière (10, 30), un dispositif de détection de corps étrangers (16 - 18) et un dispositif de séparation de corps étrangers (19, 20), un dispositif de triage (14) disposé transversalement au convoyeur de flux de matière (10, 30) étant prévu, le dispositif (16-18) de détection de corps étrangers, puis le dispositif (19, 20) de séparation de corps étrangers étant disposés à la suite du dispositif de triage (14), caractérisé en ce qu'au moyen du dispositif de triage (14) un flux de matière partiel (15) peut être extrait du flux de matière (11) et être transporté vers le dispositif (16 - 18) de détection de corps étrangers.
  9. Dispositif selon la revendication 8, caractérisé en ce que le dispositif de triage (14) comprend un canal (23).
  10. Dispositif selon la revendication 9, caractérisé en ce que le canal (23) s'étend dans la zone du dispositif (16-18) de détection de corps étrangers.
  11. Dispositif selon la revendication 9 ou 10, caractérisé en ce que se raccorde au canal (23) un canal d'aspiration (46).
  12. Dispositif selon l'une ou plusieurs des revendications 9 à 11, caractérisé en ce que le canal (23) et/ou le canal d'aspiration (46) présentent, au moins par tronçons, une section transversale (42) réduite.
  13. Dispositif selon l'une ou plusieurs des revendications 9 à 12, caractérisé en ce que le canal (23) et/ou le canal d'aspiration (46) sont réalisés, au moins par tronçons, de manière incurvée.
  14. Dispositif selon la revendication 13, caractérisé en ce que le canal (23) et/ou le canal d'aspiration (46) sont réalisés, au moins par tronçons, en forme de S.
  15. Dispositif selon l'une ou plusieurs des revendications 9 à 14, caractérisé en ce qu'est prévue, dans la zone du dispositif de détection (16-18) de corps étrangers, au moins une fenêtre (18, 18') dans le canal (23) et/ou dans le canal d'aspiration (46).
  16. Dispositif selon la revendication 15, caractérisé en ce qu'est prévu un canal latéral (45) qui permet un flux d'air (44) à l'intérieur du canal (23) et/ou du canal d'aspiration (46) le long d'au moins une fenêtre (18, 18').
EP05004869A 2004-04-27 2005-03-05 Procédé et dispositif d'élimination de corps étrangers d'un flux de matière Not-in-force EP1591172B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05004869T PL1591172T3 (pl) 2004-04-27 2005-03-05 Sposób i urządzenie do oddzielania ciał obcych ze strumienia materiału

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004020776 2004-04-27
DE102004020776A DE102004020776B4 (de) 2004-04-27 2004-04-27 Verfahren und Einrichtung zur Fremdkörperabscheidung aus einem Materialstrom

Publications (2)

Publication Number Publication Date
EP1591172A1 EP1591172A1 (fr) 2005-11-02
EP1591172B1 true EP1591172B1 (fr) 2010-02-24

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EP05004869A Not-in-force EP1591172B1 (fr) 2004-04-27 2005-03-05 Procédé et dispositif d'élimination de corps étrangers d'un flux de matière

Country Status (7)

Country Link
US (1) US7335847B2 (fr)
EP (1) EP1591172B1 (fr)
JP (1) JP4707444B2 (fr)
CN (1) CN1689715B (fr)
AT (1) ATE458558T1 (fr)
DE (2) DE102004020776B4 (fr)
PL (1) PL1591172T3 (fr)

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CN1689715A (zh) 2005-11-02
PL1591172T3 (pl) 2010-07-30
JP2005312451A (ja) 2005-11-10
US20050236306A1 (en) 2005-10-27
US7335847B2 (en) 2008-02-26
EP1591172A1 (fr) 2005-11-02
DE102004020776A1 (de) 2005-11-24
DE502005009063D1 (de) 2010-04-08
ATE458558T1 (de) 2010-03-15
CN1689715B (zh) 2010-06-02
JP4707444B2 (ja) 2011-06-22
DE102004020776B4 (de) 2007-03-08

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