EP2982251B1 - Procédé et dispositif destinés au traitement du tabac - Google Patents

Procédé et dispositif destinés au traitement du tabac Download PDF

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Publication number
EP2982251B1
EP2982251B1 EP14179934.6A EP14179934A EP2982251B1 EP 2982251 B1 EP2982251 B1 EP 2982251B1 EP 14179934 A EP14179934 A EP 14179934A EP 2982251 B1 EP2982251 B1 EP 2982251B1
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EP
European Patent Office
Prior art keywords
tobacco
feed body
feed
conveyor line
air
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.)
Active
Application number
EP14179934.6A
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German (de)
English (en)
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EP2982251A1 (fr
Inventor
Alexander Sachse
Hartmut Werner
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.)
Kohl Maschinenbau AG
Original Assignee
Kohl Maschinenbau AG
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Application filed by Kohl Maschinenbau AG filed Critical Kohl Maschinenbau AG
Priority to EP14179934.6A priority Critical patent/EP2982251B1/fr
Publication of EP2982251A1 publication Critical patent/EP2982251A1/fr
Application granted granted Critical
Publication of EP2982251B1 publication Critical patent/EP2982251B1/fr
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    • 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

Definitions

  • the present invention relates to a device for processing tobacco having a tobacco conveying path, a tobacco inlet region and a tobacco outlet region, wherein the tobacco conveying path has a feed device which is designed such that the tobacco can be conveyed along the tobacco conveying path from the tobacco inlet region to the tobacco outlet region. Furthermore, the present invention relates to a method for processing tobacco with a device according to the present invention.
  • Such devices are known in the art. In general, these devices are used to transport the tobacco from one processing point to the next processing point. Thus, so-called cut tobacco is produced, for example, by cutting tobacco leaves. After cutting the tobacco leaves then present in the form of a tobacco mat tobacco usually passes through a drying plant with an outlet temperature of about 60 ° C to 85 ° C. In the subsequent cooling system, the tobacco is cooled to room temperature. In order to fix the filling volume to be achieved later and the outlet moisture of the tobacco, rapid cooling of the tobacco is advantageous in this case.
  • Winnower ribs are always produced when cutting tobacco.
  • These Winnower ribs which are referred to below as undesired particles, are carried in small amounts in the subsequent processes, which can lead to considerable problems in the later processing process. Therefore, it is desirable that these particles are removed from the cut tobacco prior to processing in the cigarette machine. Of course, these particles should also be removed if the tobacco is intended as a tobacco product for the self-turning of cigarettes.
  • the cut tobacco is separated from the unwanted particles by means of a pneumatic conveying by air direction.
  • a solution is also known in which the cut tobacco is transported on a vibrating conveyor ring which has a perforated bottom segment. Through this perforated bottom segment, air is blown to separate light and heavy tobacco components. In this case, a separation of the unwanted particles is achieved.
  • a disadvantage of the methods mentioned is that the screening and discharge of unwanted particles is usually insufficient and during the process as well so-called short tobacco can be produced, so tobacco is too short to be processed further clean. This has an overall negative impact on the quality of the tobacco product.
  • a device for processing tobacco is out GB 367,754 known.
  • the device according to the invention is characterized in that the feed device has a rotatable first feed body with a jacket surface and driver devices that can be extended radially from the jacket surface.
  • the tobacco introduced in the tobacco inlet area is thus transported along the tobacco conveying path by rotation of the first feed body.
  • the extendable entrainment devices are in particular extended so that they act directly on the tobacco to be transported or the tobacco web to be transported. After they have acted on the tobacco or tobacco fleece, they are retracted again.
  • This has the advantage that the lateral space requirement for the entrainment devices is saved so that the first advancement body can be positioned close to the tobacco inlet area or to the tobacco outlet area.
  • the feed device has at least one rotatable second feed body, with the first feed body and the second feed body rotating at different rotational speeds.
  • the different rotational speed has the advantage that the tobacco or the tobacco web to be transported can be compressed and / or stretched. Thus, the unwanted particles can be better removed from the tobacco stream, as they fall out of this by the action of force on the tobacco or tobacco fleece.
  • the second feed body is arranged closer to the tobacco outlet area than the first feed body, wherein the second feed body rotates at a higher rotational speed than the first feed body. This has the advantage of being too transporting tobacco or tobacco fleece is slowly pulled apart. This results in a particularly good separation of the unwanted particles.
  • the second feed body has a lateral surface and entrainment devices that can be extended by the lateral surface. This results in principle the same advantage as it has already been described above with respect to the first feed body, namely that on the one hand, the lateral space requirement can be significantly reduced, and on the other hand, an optimal discharge of unwanted particles can be done.
  • the feed body can also be arranged very close together, i. The distance between the feed bodies can be minimal.
  • driver devices are designed as driver pins, wherein the driver pins are preferably completely retractable in the feed body.
  • Driving pins have the advantage that they have a uniform cross-section in the longitudinal extent, so that they complete in the retracted state, the lateral surface completely and no residual opening remains, as would be the case for example with tops or cones.
  • the disadvantage of such openings namely, that they could be clogged by tobacco particles and thus the overall processing process can be adversely affected.
  • first feed body and the second feed body are arranged substantially parallel to one another, wherein the distance between the first feed body and the second feed body is variable.
  • the size of the ejected and unwanted particles can be adjusted. If particularly small particles are to be discharged, the distance between the advancing bodies is selected to be small, the distance being chosen to be correspondingly large if larger particles are to be discharged.
  • the first feed body and / or the second feed body are formed as rollers.
  • Rolls have the advantage that they are rotationally symmetrical and therefore the distance between the rollers can be optimally adjusted.
  • the feed body use according to the requirements, for example, cones or the like can be used.
  • the device has a cooling device for cooling the tobacco.
  • the tobacco is optionally possible for the tobacco to be cooled to the output temperature, preferably at room temperature. This saves a step in the tobacco processing process.
  • the device has a housing, wherein the tobacco conveyor section is arranged within the housing, and the cooling device has an inlet opening arranged below the tobacco conveyor on the housing for discharging air and an exhaust opening arranged above the tobacco conveyor section on the housing.
  • the device has a collecting and discharging device, wherein the collecting and discharging device is arranged below the tobacco conveyor track.
  • the collecting and discharging device is arranged below the tobacco conveyor track.
  • the distance between the first feed body and the second feed body is adjusted based on the size of the unwanted particles to be ejected.
  • a targeted distance can be set, which is adapted to the size of the unwanted particles, so that only particles which are smaller than or equal to the desired size, be discharged.
  • the tobacco or the tobacco web is cooled during the promotion along the tobacco conveyor track.
  • This has the advantage that the tobacco or tobacco fleece can be cooled directly to the desired output temperature, preferably at room temperature.
  • the desired output temperature preferably at room temperature.
  • the discontinued air is introduced at a selected flow rate through the supply air opening, wherein the air is guided along the feed body and the flow velocity below the tobacco is reduced, so that the air is distributed below the tobacco. This results in a homogeneous and uniform cooling of the tobacco, so that it is output at the desired output temperature, preferably at the level of room temperature.
  • Fig. 1 is a schematic overview of a device 1 according to the invention for processing tobacco T.
  • the device 1 has a tobacco conveyor section 2, a tobacco inlet region 3 and a tobacco outlet 4.
  • the tobacco conveyor section 2 has a feed device 5, which in the in Fig. 1 shown exemplary embodiment of six feed bodies 6, 6a, 6b.
  • the feed body 6, 6a, 6b are as rollers trained and can be rotated about a central axis X by a drive, not shown. It is irrelevant whether each roller 6, 6a, 6b has its own drive, or a single drive drives all rollers 6, 6a, 6b, for example with intermediate gears. However, the drive of the rollers 6, 6a, 6b is formed so that the rollers 6, 6a, 6b can rotate at different rotational speeds V.
  • the rollers 6, 6a, 6b are constructed identically. Each roller 6, 6a, 6b has a lateral surface 7 from which driver devices 8 can be extended in the radial direction.
  • the driver devices 8 are preferably designed as driving pins (see. Fig. 2 to 4 ), which are completely retractable into the lateral surface 7. As in the Fig. 2 to 4 can be arranged in rows along the longitudinal axis A of the roller 6, 6a, 6b, the driver pins 8. It is also conceivable that the driving pins 8 have a different arrangement, for example in the form of a helix.
  • the driving pins 8 are moved in the radial direction via a movement device, not shown, so that they either extend from the lateral surface 7, or are sunk within the lateral surface 7.
  • the rollers 6, 6a, 6b are arranged parallel to one another along the tobacco conveying path 2 at a variable distance D. Since the driving pins 8 are retractable and extendable, the minimum distance D between two rollers 6a, 6b is not defined by the radial extent of the driving pins 8. Rather, the rollers 6, 6a, 6b can be arranged so that the lateral surfaces 7 contact or have no contact with each other. As shown in the figures, the driving pins 8 are moved in just before they act on the tobacco T radially extended and after they acted on the tobacco T retracted again. For example, this retraction and extension movement of the driving pins 8 can be controlled by a camshaft arranged within the roller 6, 6a, 6b. As in particular in Fig. 1 and Fig. 3 illustrated, the drive pins 8 are preferably about or extended in the upper third of the roller cross section, so that no contact between driving pins 8 adjacent rollers 6, 6a, 6b is formed.
  • the distance D between the rollers 6 is selected so that undesired particles P of a certain size by the gap defined by the distance D 9 between two rollers 6, 6a, 6b or between a roller 6, 6a, 6b and another component of the Device 1 can be discharged.
  • a feed device 5 with three rollers 6, 6a, 6b is shown.
  • the device 1 has a housing 10, a collecting and discharging device 11 and a cooling device 12.
  • the tobacco conveyor section 2 is disposed within the housing 10, wherein the collecting and discharging device 11 is located below the tobacco conveyor section 2, so that the discharged unwanted particles P can be collected and transported for further processing, as will be described in more detail below.
  • the supply air opening 13 is in this embodiment below the tobacco conveyor section 2 and the exhaust opening 14 above the tobacco conveyor section 2. It is also conceivable that more than one inlet opening 13 or exhaust opening 14th are provided and these can also be arranged at other locations of the device 1 and the housing 10. Through the supply air opening 13 air L is charged at a selected flow rate S in order to cool the tobacco T to a desired temperature, in particular to room temperature can. This optional cooling process is described in more detail below.
  • the tobacco T is placed in the tobacco inlet area 3 in the device 1.
  • the abandoned tobacco T is abandoned in this embodiment in the form of a tobacco fleece T from cut tobacco leaves. Due to the upstream cutting of the tobacco T process uncircumcised and therefore undesirable particles P are included in the tobacco mat T, which are carried in the cut material further in the process. Since these unwanted particles P known as Winnower ribs can lead to disruptions and impaired quality in a cigarette machine or in manually produced cigarettes, it is advantageous to remove these unwanted particles P from the tobacco web T.
  • the tobacco mat T is conveyed along the tobacco conveyor section 2 by the feed device 5 and at the same time the uncut and unwanted particles P discharged.
  • the tobacco web T is therefore pulled apart along the tobacco conveyor section 2.
  • the rollers 6, 6a, 6b rotate at different rotational speed V.
  • the rotational speed V of the rollers 6, 6a, 6b is continuously increased from the tobacco inlet portion 3 to the tobacco outlet portion 4.
  • the roller 6a closest to the tobacco inlet portion 3 rotates at the lowest rotational speed V
  • the roller 6b closest to the tobacco outlet portion 4 rotates at the highest rotational speed V.
  • the distance D between the rollers 6, 6a, 6b is in this case selected so that at the respective point within the tobacco conveyor section 2, the unwanted particles P of a certain size are discharged by this gravity caused by the gap defined by the distance D between the rollers 6 9, and collected in the collecting and discharging device 11. From this, the unwanted particles P can be supplied for further processing or disposal, for example.
  • the tobacco mat T can be cooled during the conveyance along the tobacco conveyor section 2.
  • air L for cooling at a selected flow rate S through the supply air opening 13 is abandoned.
  • the air L flows through the gap 9 between the rollers 6, 6a, 6b, wherein the flow velocity S of the air L decreases due to the Bernoulli effect when it exits through the gap 9 in the direction of the tobacco web T.
  • the air L is distributed homogeneously below the tobacco web T and cools this to the desired output temperature, preferably at the level of the room temperature.
  • the air L then exits through the exhaust port 14 and can be filtered, for example, to remove dust particles or the like from the air L.
  • the gap 9 between the rollers 6, 6a, 6b is chosen so that the unwanted particles P are discharged and an optimal air distribution below the tobacco web T is achieved for cooling the same.

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Claims (15)

  1. Dispositif (1) destiné au traitement du tabac (T) avec une ligne de transport de tabac (2), une zone d'entrée de tabac (3) et une zone de sortie de tabac (4), dans lequel la ligne de transport de tabac (2) présente un système d'avancement (5) qui est formé de telle sorte que le tabac (T) puisse être transporté le long de la ligne de transport de tabac (2) de la zone d'entrée de tabac (3) à la zone de sortie de tabac (4),
    caractérisé en ce que
    le système d'avancement (5) présente un premier corps d'avancement pouvant tourner (6, 6a, 6b) avec une surface d'enveloppe (7) et des systèmes d'entraînement (8) pouvant être déployés radialement de la surface d'enveloppe (7).
  2. Dispositif (1) selon la revendication 1,
    caractérisé en ce que
    le système d'avancement (5) présente au moins un deuxième corps d'avancement pouvant tourner (6, 6b), dans lequel le premier corps d'avancement (6a) et le deuxième corps d'avancement (6, 6b) tournent à des vitesses de rotation différentes.
  3. Dispositif (1) selon la revendication 2,
    caractérisé en ce que
    le deuxième corps d'avancement (6, 6b) est disposé plus près de la zone de sortie de tabac (4) que le premier corps d'avancement (6a), et le deuxième corps d'avancement (6, 6b) tourne à une vitesse de rotation plus élevée (V) que le premier corps d'avancement (6a).
  4. Dispositif (1) selon l'une des revendications 2 ou 3 précédentes,
    caractérisé en ce que
    le deuxième corps d'avancement (6, 6b) présente une surface d'enveloppe (7) et des systèmes d'entraînement (8) pouvant être déployés radialement de la surface d'enveloppe (7).
  5. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    les systèmes d'entraînement (8) sont formés comme des broches d'entraînement, et les broches d'entraînement (8) sont escamotables de préférence complètement dans le corps d'entraînement (6, 6a, 6b).
  6. Dispositif (1) selon l'une des revendications 2 à 5 précédentes,
    caractérisé en ce que
    le premier corps d'avancement (6a) et le deuxième corps d'avancement (6, 6b) sont disposés essentiellement parallèlement, et la distance (D) entre le premier corps d'avancement (6a) et le deuxième corps d'avancement (6, 6b) peut être modifiée.
  7. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le premier corps d'avancement (6a) et/ou le deuxième corps d'avancement (6, 6b) sont formés comme des cylindres ou sont des cylindres.
  8. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif (1) présente un dispositif de refroidissement (12) pour refroidir le tabac (T).
  9. Dispositif (1) selon la revendication 8,
    caractérisé en ce que
    le dispositif (1) présente un logement (10), la ligne de transport de tabac (2) est disposée à l'intérieur du logement (10) et le dispositif de refroidissement (12) présente une ouverture d'arrivée d'air (13) disposée sous la ligne de transport de tabac (2) sur le logement pour diffuser de l'air (L) et une ouverture d'évacuation d'air (14) disposée au-dessus de la ligne de transport de tabac (2) sur le logement (10).
  10. Dispositif (1) selon l'une des revendications précédentes,
    caractérisé en ce que
    le dispositif (1) présente un dispositif de collecte et de déchargement (11), dans lequel le dispositif de collecte et de déchargement (11) est disposé sous la ligne de transport de tabac (2)
  11. Procédé destiné au traitement du tabac (T) avec un dispositif (1) selon l'une des revendications précédentes, présentant les étapes suivantes :
    a. la distribution du tabac (T) dans la zone d'entrée de tabac (3) ;
    b. le déploiement des systèmes d'entraînement (8) avant que ceux-ci n'agissent sur le tabac (T) ;
    c. l'action des systèmes d'entraînement (8) sur le tabac (T) de sorte que celui-ci soit transporté le long de la ligne de transport de tabac (2) ;
    d. le déchargement concomitant de particules indésirables (P) du tabac (T) ;
    e. la rentrée des systèmes d'entraînement (8) après que ceux-ci ont agi sur le tabac (T) ; et
    f. la distribution du tabac (T) dans la zone de sortie de tabac (4).
  12. Procédé selon la revendication 11,
    caractérisé en ce que
    un deuxième corps d'avancement (6, 6b) est disposé plus près de la zone de sortie de tabac (4) que le premier corps d'avancement (6a), dans lequel le deuxième corps d'avancement (6, 6b) tourne à une vitesse de rotation (V) plus élevée que le premier corps d'avancement (6a), de sorte que le tabac (T) transporté le long de la ligne de transport de tabac (2) soit étiré.
  13. Procédé selon l'une des revendications 11 ou 13 précédentes,
    caractérisé en ce que
    la distance (D) entre le premier corps d'avancement (6a) et le deuxième corps d'avancement (6, 6b) est réglée sur la base de la taille des particules indésirables (P).
  14. Procédé selon l'une des revendications 11 à 13 précédentes,
    caractérisé en ce que
    le tabac (T) est refroidi pendant le transport le long de la ligne de transport de tabac (2).
  15. Procédé selon la revendication 14,
    caractérisé en ce que
    de l'air (L) est diffusé par l'ouverture d'arrivée d'air (13) à une vitesse d'écoulement choisie (S), dans lequel l'air (L) est conduit le long des corps d'avancement (6, 6a, 6b) et la vitesse d'écoulement (S) se réduit sous le tabac (T) de sorte que l'air (L) soit réparti sous le tabac (T).
EP14179934.6A 2014-08-05 2014-08-05 Procédé et dispositif destinés au traitement du tabac Active EP2982251B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14179934.6A EP2982251B1 (fr) 2014-08-05 2014-08-05 Procédé et dispositif destinés au traitement du tabac

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14179934.6A EP2982251B1 (fr) 2014-08-05 2014-08-05 Procédé et dispositif destinés au traitement du tabac

Publications (2)

Publication Number Publication Date
EP2982251A1 EP2982251A1 (fr) 2016-02-10
EP2982251B1 true EP2982251B1 (fr) 2017-07-12

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10857562B2 (en) 2017-08-19 2020-12-08 Altria Client Services Llc String filter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB367754A (en) * 1929-09-14 1932-02-25 Ebco Machine Corp Improvements in or relating to impellers for use in feeding tobacco and like materials
GB1073012A (en) * 1964-06-04 1967-06-21 Korber Kurt Distributor for tobacco particles
GB2246502A (en) * 1988-02-10 1992-02-05 Molins Plc Separating particles of stranded material
GB9507074D0 (en) * 1995-04-05 1995-05-31 Gbe International Plc Tobacco processing apparatus

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