EP1684602A2 - Verfahren und einrichtung zum sichten von tabak - Google Patents
Verfahren und einrichtung zum sichten von tabakInfo
- Publication number
- EP1684602A2 EP1684602A2 EP04803096A EP04803096A EP1684602A2 EP 1684602 A2 EP1684602 A2 EP 1684602A2 EP 04803096 A EP04803096 A EP 04803096A EP 04803096 A EP04803096 A EP 04803096A EP 1684602 A2 EP1684602 A2 EP 1684602A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- tobacco
- classifier
- pipe
- sifting
- 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- Withdrawn
Links
- 241000208125 Nicotiana Species 0.000 title claims abstract description 80
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000032258 transport Effects 0.000 claims description 18
- 238000005192 partition Methods 0.000 claims description 8
- 239000002657 fibrous material Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 2
- 210000000056 organ Anatomy 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract 1
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000006163 transport media Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- 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
- B07B4/04—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall in cascades
Definitions
- the invention relates to a method for classifying fibrous materials, in particular cut tobacco, which is conveyed through a classifier by means of flowing medium, in particular by means of air, and is fed to a receiving container following a classifying process. Furthermore, the invention relates to a device or a classifier for classifying tobacco in particular.
- the invention has for its object to improve the effectiveness of classifiers in connection with the treatment of tobacco.
- the inventive method is characterized in that the tobacco or the like in a first flow to Sifter transported and sighted in a second, separate (sifting air) stream and then fed to the receptacle.
- the basic idea of the invention is therefore to separate gas or air flows for the transport of the tobacco to the sifter on the one hand and for the sifting of the tobacco in the area of the sifter and the subsequent transfer of the sifted tobacco to a receptacle on the other hand.
- a special feature is that at least the sifting air flow forms a closed flow circuit. The sifting air flow is directed through the classifier against the direction of movement of the tobacco (from bottom to top), taking the sifted tobacco with it and transporting it to the receptacle. The sighted tobacco is collected in this. The tobacco-free air is led back to an inlet side of the classifier.
- the device according to the invention for carrying out the method consists of a channel system, in particular a pipe system in connection with a classifier, in particular a cone classifier.
- An exhaust air duct or exhaust pipe is assigned to a feed channel or feed pipe for the tobacco supply to the classifier, which feeds the transport air without tobacco to an exhaust air unit following the classifier.
- a closed flow circuit works with a classifying air duct or classifying air pipe for supplying classifying air into the classifier.
- a discharge channel or discharge pipe transports the sighted tobacco to the receptacle with the classifying air.
- Another specialty is the sifter, namely cone sifter, in structure and function for improved separation of foreign objects from the tobacco.
- FIG. 3 shows a detail of the classifier according to FIG. 2, namely a horizontal section in the section plane III-III of FIG. 2,
- FIG. 4 shows a further detail of the classifier according to FIG. 2, namely a horizontal section in the section plane IV-IV of FIG. 2,
- Fig. 5 is a further enlarged detail of the classifier, namely a section V of FIG. 2 on an enlarged scale.
- FIG. 1 The drawings deal on the one hand with a system for treating tobacco (FIG. 1) and on the other hand with a sifter 10 (FIGS. 2 to 5) which is designed in a special way.
- a system for treating tobacco FIG. 1
- a sifter 10 FIGS. 2 to 5
- classifiers 10 are used which separate the foreign objects from the tobacco due to their higher weight by means of a flowing medium, in particular air.
- the tobacco is conveyed through a feeder 11, in particular as a unit of a tobacco preparation, via a first flow channel, namely a feed pipe 12 to the sifter 10, using air as the conveying medium.
- a first flow channel namely a feed pipe 12 to the sifter 10
- the air-tobacco mixture in the feed pipe 12 is represented by arrows 13, 14. There is negative pressure in this.
- the tobacco is introduced into an upright sifter 10 in the upper region.
- the tobacco is retained and sighted within the sifter 10.
- the conveying air of the feed pipe 12 emerges from the classifier 10, specifically in the upper region via an exhaust air duct or an exhaust air pipe 15. This leads to an exhaust air center 16, in which the air is released, possibly after cleaning.
- a second flow circuit is formed by classifying air.
- a classifying air duct or classifying air pipe 17 connects to the classifier 10 (in the lower area).
- An air unit, in particular a blower 18, is assigned to the classifying air pipe 17 in the region before entering the classifier 10.
- the sight flow is conveyed in the upward direction, that is to say in countercurrent to the tobacco entering above.
- the sighted tobacco is taken along by the classifying air and is guided into an upward discharge channel or into a discharge pipe 19.
- This transports the tobacco-air mixture into a receiving container, in particular into a lock 20, for example on the inlet side of a distributor (not shown).
- the lock 20 is provided with a separating element, in particular with a sieve 21. This extends in the upper region of the lock 20.
- the viewing air tube 17 emerges from the lock 20.
- the sieve 21 prevents tobacco from being carried along by the viewing air tube 17.
- control elements on the one hand and measuring elements on the other hand are arranged in the channels or pipes as required.
- a throttle valve 22 is arranged at the outlet end of the exhaust air pipe 15 and a further throttle valve 23 in the classifying air pipe 17, specifically immediately before the classifying air pipe 17 with a reduced cross section enters the classifier 10.
- the throttle valves 22, 23 are provided with a control unit 24 connected.
- the blower 18 is also connected to this.
- the control unit 24 is supplied with data on flow conditions or air pressure in the classifier 10.
- 10 sensors namely pressure sensors 25 and 26 are arranged within the classifier, namely installed in the lower area and in the upper area.
- a further monitoring device is assigned to the lock 20, namely a level meter 27. This checks the level of the tobacco sighted in the lock 20.
- the level meter 27 is also connected to the control unit 24.
- the active The level of sighting is significantly influenced by the flow conditions in the classifier 10. It depends on the volume flow of the classifying air, which in the present example is determined by the pressure sensors 25, 26 in conjunction with the differential pressure meter 28. Alternatively, the volume flow can also be recorded by other measuring devices, for example using a Prandtl tube.
- the measurement data are evaluated in the control unit 24. This controls the blower 18 and the throttle valves 22, 23 to create optimal flow conditions in the channels or pipes and in the classifier 10.
- the content of the (sighted) tobacco is measured in the lock 20.
- a maximum level in the lock 20 is reached, the supply of tobacco from the feeder 11 is briefly interrupted.
- the throttle valves 22, 23 are closed in succession and the fan 18 is switched off after the classifier 10 is free of tobacco.
- the lock 20 is now opened to convey the tobacco sighted into a further processing unit, in particular into a distributor.
- the level meter 27 detects the flow changing through the level in the lock 20 and takes it into account via the control unit 24 and the blower by changing the volume flow.
- FIGS. 2 to 5 can be operated with a classifier 10 of a suitable design.
- An upright sifter 10 in the design as a conical sifter according to FIGS. 2 to 5 is particularly advantageous. This represents a special feature with regard to structure and function.
- a guide body 30 is arranged centrally in an upright position.
- the guide body 30 has a zigzag-shaped contour, namely consists in particular of several double-cone segments 31.
- the number of segments depends on the construction tion height of the classifier 10.
- four double-cone segments 31 are connected to one another to form a closed hollow body.
- the guide body 30 preferably consists of thin-walled, metallic material. The individual segments 31 are joined to one another, for example, by means of screw connections.
- the guide body 30 thus forms guide surfaces 32, which are arranged at obtuse angles to one another, as the inner boundary of a likewise zigzag-shaped viewing channel 33, which is of circular design in cross section with a variable diameter and possibly a variable width.
- the viewing channel 33 is delimited on the outside by a correspondingly shaped outer wall 34 which forms the housing 29 in the lower region.
- the outer wall 34 or the housing 29 is designed in a zigzag shape, namely running parallel or approximately parallel to the conical guide surfaces 32 of the guide body 30.
- the outer wall 34 merges into a cylindrical base part 35.
- a (cylindrical) upright inner wall 36 is arranged within the base part 35 and forms an air chamber 37 which is closed all around and downwards.
- the viewing air tube 17 opens into this, with horizontal or radial entry into the air chamber 37 (FIG. 4).
- a transverse, air-permeable partition, namely screen wall 55, is arranged within the air chamber 37.
- annular collecting space 38 is created in the area of the base part 35. This serves to hold foreign or coarse parts 39 of the tobacco separated by screening.
- the viewing channel 33 merges into a central, upright pipe, namely the discharge pipe 19 for the tobacco sighted.
- the upper area of the classifier 10, namely a head part 40, is formed in a special meadow.
- the tobacco to be sifted or a mixture of tobacco and trans- Port air is introduced laterally into the classifier 10 via the feed pipe 12 in the upper region of the head part 40.
- This is attached essentially tangentially to the cylindrical head part 40 (FIG. 3), so that the tobacco with transport air flows along a cylindrical outer wall 41 of the head part 40.
- On the inside of the outer wall 41 there are helical or helical guiding elements for the tobacco which cause the tobacco to be conveyed downwards along a helical path of movement.
- a transverse, helically extending guide web 42 is attached to the outer wall 41 as guide members.
- the transverse guide web 42 leads from the point of entry of the tobacco into the head part 40 or from the mouth of the feed pipe 12 all around and downwards to approximately a cross-sectional constriction, namely an annular nozzle 43.
- the guide web 42 is designed as a projection and extends over a partial area of one Upright, annular receiving chamber 44. This is delimited on the outside by the outer wall 41 of the head part 40 and on the inside by an air-permeable, likewise cylindrical, partition wall 45, which is also designed as a sieve. This creates in the head part an external space with an annular cross-section for receiving the tobacco supplied.
- the air namely transport air of the feed pipe 12, enters this receiving chamber 44 (with the tobacco), but passes through the air-permeable partition wall 45 into the region of an interior space 46, which surrounds an upper part of the outer wall 34 and the discharge pipe 19. Concentric to the discharge pipe 19 adjoins the interior 46 an attachment 47 which takes over the air from the interior 46.
- the classifying air is introduced from below into the upright classifier 10, specifically via the classifying air pipe 17 entering laterally into the housing 29 or into the bottom part 35.
- An overpressure arises in the air chamber 37 below the guide body 30, which leads to a uniform introduction of the sifting air leads into the sifting channel 33 surrounding the guide body 30.
- air guiding elements are attached, specifically a plurality of air guide plates 48 running parallel to the guide surfaces 32.
- the upward flow of the sight air is directed against the downward movement of the tobacco due to its own weight.
- the tobacco is diverted by the sifting air in a region adjoining the cross-sectional constriction or ring nozzle 43 from the downward movement into the upper part of the sifting channel 33 and finally into the discharge pipe 19.
- the sifting air acts as a transport medium.
- the heavy foreign components 39 are moved downwards against the flow of the viewing air into the annular collecting space 38 outside the air chamber 37.
- the outer wall 34 of the viewing channel 33 is shaped such that a lower leg or section of the outer wall 34 leads to the collecting space 38 in a converging or funnel-like manner , so that the foreign parts 39 reliably reach this receiving area.
- the foreign parts 39 collected in the collecting space 38 are removed continuously or from time to time via a lock.
- a discharge lock is formed at the lower end of the annular collecting space 38, which continuously or from time to time releases the foreign components 39 into a collecting container 49.
- At the lower end of the collecting space 38 there is a hollow body running around it or an annular hollow profile 50, on the upper side of which the incoming foreign matter 39 is collected.
- At one point of the hollow profile 50 an open passage or opening 51 is formed as a lock, above the collecting container 49.
- the foreign components 39 are removed from the top of the hollow profile 50 by a scraper or driver, in the present case by a brush 52 dissipated to the area of the opening 51.
- a special feature of the classifier 10 is the transmission of oscillations or vibrations to the tobacco during the classifying in order to improve the classifying effect.
- the ring-shaped cross-section The receiving chamber 44 in the viewing channel 33 has an all-round, that is to say an annular shaped piece 53 which follows the contour of the receiving chamber 44 on the one hand and the viewing channel 33 on the other hand and furthermore forms the inner boundary of the cross-sectional constriction or annular nozzle 43.
- a vibration element for example a vibrating magnet 54, is located in the shaped piece 53 designed as a hollow body. This acts on the shaped piece 53, which in turn transmits the oscillations or vibrations to the tobacco. Vibrations or vibrations can also be transmitted to the tobacco in other ways. In the present exemplary embodiment, approximately horizontally directed vibrations of the shaped piece 53 are generated.
- the device shown and described can be used in various ways.
- the device according to FIG. 1 is expediently arranged upstream of a distributor or hopper for the preparation of the tobacco for the production of cigarettes, so that the entire tobacco is sighted before it enters the distributor.
- the lock 20 is the entrance area of the distributor.
- the system according to FIG. 1 can be integrated in a distributor. This also applies to the conical classifier shown in FIGS. 2 to 5, which can be used inside or outside a distributor.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003152119 DE10352119A1 (de) | 2003-11-04 | 2003-11-04 | Verfahren und Einrichtung zum Sichten von Tabak |
| PCT/EP2004/012124 WO2005041700A2 (de) | 2003-11-04 | 2004-10-27 | Verfahren und einrichtung zum sichten von tabak |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1684602A2 true EP1684602A2 (de) | 2006-08-02 |
Family
ID=34530167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04803096A Withdrawn EP1684602A2 (de) | 2003-11-04 | 2004-10-27 | Verfahren und einrichtung zum sichten von tabak |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1684602A2 (de) |
| DE (1) | DE10352119A1 (de) |
| WO (1) | WO2005041700A2 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889061A (zh) * | 2015-04-23 | 2015-09-09 | 上海烟草集团有限责任公司 | 叶丝风选系统 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1985192B1 (de) * | 2006-02-14 | 2013-06-19 | Japan Tobacco Inc. | Zuführvorrichtung für geschnittenes tabakmaterial für eine vorrichtung zur zigarettenherstellung |
| CN101669675B (zh) * | 2009-09-27 | 2012-05-30 | 上海烟草集团有限责任公司 | 一体化下吸式柔性送丝机 |
| CN102429317B (zh) * | 2011-12-13 | 2013-09-18 | 卧龙电气集团股份有限公司 | 用于密集烤房控制器的风门开度控制装置及其方法 |
| DE102013004634A1 (de) * | 2013-03-15 | 2014-09-18 | Riedel Filtertechnik Gmbh | Pneumatische Förderanlage |
| CN103519346B (zh) * | 2013-10-22 | 2016-08-17 | 广东中烟工业有限责任公司 | 一种多级分离式梗签剔除物中烟丝回收装置 |
| CN105414025B (zh) * | 2015-12-18 | 2018-11-20 | 广东中烟工业有限责任公司 | 一种在线梗签和烟丝分离装置 |
| CN105661619B (zh) * | 2016-04-26 | 2017-04-26 | 河南中烟工业有限责任公司 | 一种切丝机除尘过滤箱 |
| CN108576914B (zh) * | 2018-05-31 | 2023-05-19 | 江西中烟工业有限责任公司 | 基于晃动筛分的烟草加工用烟梗与梗头二级筛分装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2262429A (en) * | 1991-12-17 | 1993-06-23 | Gd Spa | Feed unit with a tobacco particle separator for cigarette manufacturing machines |
| US6510855B1 (en) * | 2000-03-03 | 2003-01-28 | Brown & Williamson Tobacco Corporation | Tobacco recovery system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS585655B2 (ja) * | 1980-01-11 | 1983-02-01 | 日本たばこ産業株式会社 | たばこ葉の風選式分離装置 |
| US4475562A (en) * | 1981-10-16 | 1984-10-09 | Philip Morris Incorporated | Method and apparatus for separating tobacco mixture into lighter and heavier fractions |
| DE3540682A1 (de) * | 1985-11-16 | 1987-05-21 | Leybold Heraeus Gmbh & Co Kg | Zick-zack-sichter |
| DE3629074A1 (de) * | 1986-08-26 | 1988-05-05 | Bat Cigarettenfab Gmbh | Tabakschleuse |
| DE4427418A1 (de) * | 1994-08-03 | 1996-02-08 | Sagemueller Franz Gmbh | Windsichtung pflanzlicher Stoffe, wie Tabak, Kräuter oder dergleichen in vorbestimmte Wichten umfassende Fraktionen |
| AT403133B (de) * | 1996-03-14 | 1997-11-25 | Scheuch Alois Gmbh | Sichter |
| DE19718158C2 (de) * | 1997-04-29 | 2003-04-24 | Kvaerner Panel Sys Gmbh | Verfahren und Vorrichtung zum windsichtenden Separieren |
| DE19957993B4 (de) * | 1999-12-02 | 2004-07-22 | Bückmann GmbH | Kegelsichter und Verfahren zum Sichten von eingeschränkt oder nicht rieselfähigem Schüttgut und Halterungsstrebe |
| DE10140309A1 (de) * | 2001-08-16 | 2003-02-27 | Hauni Maschinenbau Ag | Anordnung zum Aufbau wenigstens eines Tabakstranges in einer Zigarettenstrangmaschine |
-
2003
- 2003-11-04 DE DE2003152119 patent/DE10352119A1/de not_active Withdrawn
-
2004
- 2004-10-27 WO PCT/EP2004/012124 patent/WO2005041700A2/de not_active Ceased
- 2004-10-27 EP EP04803096A patent/EP1684602A2/de not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2262429A (en) * | 1991-12-17 | 1993-06-23 | Gd Spa | Feed unit with a tobacco particle separator for cigarette manufacturing machines |
| US6510855B1 (en) * | 2000-03-03 | 2003-01-28 | Brown & Williamson Tobacco Corporation | Tobacco recovery system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889061A (zh) * | 2015-04-23 | 2015-09-09 | 上海烟草集团有限责任公司 | 叶丝风选系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2005041700A3 (de) | 2005-06-23 |
| WO2005041700A2 (de) | 2005-05-12 |
| DE10352119A1 (de) | 2005-06-09 |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BARKMANN, RALF Inventor name: HOPPE, REINHARD Inventor name: BAUMGARDT, TORBEN Inventor name: HARMS, STEFAN |
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| 18W | Application withdrawn |
Effective date: 20100403 |