EP2692247B1 - Dispositif et procédé d'expansion du tabac - Google Patents

Dispositif et procédé d'expansion du tabac Download PDF

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Publication number
EP2692247B1
EP2692247B1 EP11862760.3A EP11862760A EP2692247B1 EP 2692247 B1 EP2692247 B1 EP 2692247B1 EP 11862760 A EP11862760 A EP 11862760A EP 2692247 B1 EP2692247 B1 EP 2692247B1
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EP
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Prior art keywords
tobacco material
cyclone
steam
steam flow
duct
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German (de)
English (en)
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EP2692247A4 (fr
EP2692247A1 (fr
Inventor
Satoshi Taguchi
Hiromi Uematsu
Manabu Nishimura
Koji Sakamoto
Kazuyuki TSUCHIZAWA
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Japan Tobacco Inc
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Japan Tobacco Inc
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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
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
    • A24B3/182—Puffing

Definitions

  • the present invention relates to a method and an apparatus for expanding tobacco material.
  • EP-A-0 242 873 is a method and a device known wherein tobacco material is moistened and swelled in an expander and subsequently fed to a cyclone.
  • Tobacco material (such as stems), which is separated from tobacco leaves, constitutes 20-30% by weight of tobacco leaves.
  • Shreds of stems are used as tobacco shreds together with cut laminas of tobacco leaves, from which the stems are removed, for the purpose of utilizing tobacco material.
  • cut stems are obtained by rolling and shredding stems.
  • the cut stems are subjected to an expanding process including conditioning and drying, so as to increase filling capacity and combustibility and soften the smoking taste. Conventional processes of expanding cut stems and techniques related thereto will be described below.
  • Japanese Patent No. 4031115 discloses a method and an apparatus for applying a conditioning agent to tobacco material.
  • This apparatus has a structure in which nozzles are provided in impeller-like projections such as carrying pins, including a rotary winnowing roll (hereinafter referred to as a winnower).
  • injection of a conditioning agent is performed prior to drying, by spraying steam from the nozzles to tobacco material falling freely, using the above-described apparatus, and then the tobacco material is conveyed to a drying process section.
  • U. S. Patent No. 4,766,912 discloses a method and an apparatus for expanding tobacco material.
  • the apparatus comprises a steam spraying device including a vibratory conveyor for conveying tobacco material and conveys the tobacco material by spraying steam via holes in a lower surface of the vibratory conveyor to the material being conveyed while vibrating the material, and a fluidized bed dryer, in an attempt to improve filling capacity of the tobacco material.
  • 2,802,334 discloses an apparatus comprising a closed transport duct formed as a vibratory conveyor including an inlet and an outlet, a supply device for supplying steam or a heated gas to a bottom of the transport duct, and spraying holes, in relation to the above-mentioned U. S. Patent.
  • Jpn. Pat. Appln. KOKAI Publication No. 62-3778 discloses a method and an apparatus for drying tobacco in which two stages of pneumatic conveying flush drying process are continuously performed. More specifically, tobacco material is supplied into a high-temperature gas medium and is transported to a first separation device via a first duct, where the material and the gas medium are separated from each other. The high-temperature gas medium is supplied to a second duct, and the separated tobacco material is supplied to a downstream part of the first separation device. The tobacco material and the high-temperature gas medium are transported to the second separation device via the second duct, where the material and the gas medium are separated from each other.
  • the publication further discloses using a separation device for reducing the time during which the tobacco material and the high-temperature gas medium contact each other.
  • the transit time of the tobacco material and the steam in the apparatus is short, judging from the descriptions on the velocity of free fall, the effective height of the apparatus, and the number of revolutions (200 rpm) of the winnower. Since the tobacco material contacts the steam for a short time, moistening and swelling is not sufficiently performed. Further, since the winnower includes a rotating part, deterioration of components is fast. Moreover, the tobacco material easily becomes tangled in the rotating part. The tangled tobacco material causes a significant effect on the smoking taste and physical properties.
  • U. S. Patent No. 4,766,912 discloses a structure of causing the steam spraying device to convey the material by vibration and spray steam from the holes in the bottom surface of the vibratory conveyor. Since deterioration of driving components caused by the vibration is fast, this structure is inferior in terms of durability.
  • Spraying of steam from the bottom surface of the vibratory conveyor uses perforations with diameters of as small as 0.8 mm, for example. Accordingly, the perforations are clogged with scale (inorganic substances such as calcium carbonate) contained in the steam and fine powder of tobacco material. Clogging of the perforations causes fluctuation in the amount of steam and makes the quality of processed tobacco material unstable.
  • scale inorganic substances such as calcium carbonate
  • the present invention provides a method for expanding tobacco material capable of increasing filling capacity of the tobacco material compared to conventional techniques.
  • the present invention provides an apparatus for expanding tobacco material with a simple structure capable of increasing filling capacity of the tobacco material compared to conventional techniques and achieving continuous processing and high durability.
  • a method for expanding tobacco material comprising: moistening and swelling tobacco material by swirling tobacco material together with a steam flow at temperatures of 100-160°C in contact therewith in a cyclone; and drying the tobacco material after being moistened and swollen.
  • an apparatus for expanding tobacco material comprising: a cyclone including an inlet, a vent, and an outlet, the cyclone being configured to moisten and swell tobacco material by swirling tobacco material together with a steam flow at temperatures of 100-160 degrees Celsius in contact therewith; a supply duct connected to the inlet of the cyclone; an exhaust duct connected to the vent of the cyclone; a steam supply section connected to the supply duct; a tobacco material supply section connected to the supply duct in a position between a connection part of the steam supply section and the inlet of the cyclone; and a dryer to which tobacco material discharged from the outlet of the cyclone is conveyed and configured to dry the tobacco material.
  • FIG. 1 is a schematic diagram illustrating an apparatus for expanding tobacco material according to an embodiment.
  • Tobacco material is moistened and swollen by swirling the tobacco material with a steam flow at temperatures of 100-160°C in contact therewith.
  • Cut stems for example, can be used as the tobacco material. Cut stems are obtained by separating rod-like stems from tobacco leaves and rolling and shredding the rod-like stem material according to a fixed method. More specifically, rod-like stem material is conditioned to a moisture content of 15-50% by weight, preferably 20-40% by weight, for example. The conditioned rod-like stem material is rolled by a rolling mill with 0.5 to 1.2 mm roll pitches, for example, and is shredded into 0.1-0.3 mm widths, and thereby cut stems are produced.
  • Steam at temperatures of 100-160°C can moisten and swell the tobacco material without drying the tobacco material.
  • the temperature of the steam should be in the range of 110-150°C.
  • Swirling of tobacco material together with a steam flow is performed by introducing the tobacco material into a cyclone, for example, together with the steam flow.
  • the residence time by the swirling should preferably be 0.5-5 seconds.
  • condensation heat transfer of the steam to the tobacco material occurs.
  • the condensation heat transfer causes increase in moisture and temperature (goods temperature) of the tobacco material, which makes tobacco tissues flexible and causes moistening and swelling.
  • the moistened and swollen tobacco material does not dry and increases in moisture content to a level equal to a level before contacting the steam flow, or by 5% by weight or less.
  • the moistened and swollen tobacco material is dried, and thereby expanded.
  • Drying can be performed by letting the tobacco material contact a superheated steam flow or a heated air flow.
  • the superheated steam flow should preferably have a temperature higher than the temperature of the steam of the first step. By thus letting the superheated steam flow have a temperature higher than the temperature of the steam of the first step, the moistened and swollen tobacco material can be efficiently dried.
  • the superheated steam flow should preferably have a temperature higher than the temperature of the steam of the first step, within the range of temperatures of 160-300°C.
  • the temperature of the superheated steam is 160°C
  • the temperature of the steam of the first step is set to a temperature less than 160°C
  • the temperature of the superheated steam is set to be higher than the temperature of the steam.
  • the temperature of the superheated steam should be within the range of 180-280°C.
  • the tobacco material should preferably be swirled together with the superheated steam flow.
  • Swirling can be performed using a cyclone, for example.
  • the residence time by the swirling should preferably be 2-15 seconds.
  • the moisture content of the tobacco material can be reduced to 3-15% by weight, for example.
  • the tobacco material (such as cut stems) can be made into contact with the steam in a dispersed state without being damaged.
  • the tobacco material can be moistened and swollen efficiently. After that, the moistened and swollen tobacco material is dried.
  • expanded tobacco material (such as expanded cut stems) with high filling capacity, compared to the conventional one obtained by directly drying conditioned tobacco material, can be obtained.
  • the filling capacity of the tobacco material can be further increased.
  • a superheated steam flow in particular, at a temperature higher than the temperature of the steam of the preceding step, preferably a superheated steam flow within the range of temperatures of 160-300°C
  • the time required for moistening and swelling can be arbitrarily controlled by adjusting the amount of steam and the amount of air discharge.
  • the filling capacity of the cut stems can be freely controlled by the drying process.
  • FIG. 1 An apparatus for expanding tobacco material according to an embodiment will now be described with reference to FIG. 1 .
  • a cyclone 1 includes an inlet 2 on a sidewall, a vent 3 at an upper part, and an outlet 4 at a bottom part.
  • One end of a supply duct 5 is connected to the inlet 2 of the cyclone 1.
  • One end of an exhaust duct 6 is connected to the vent 3 of the cyclone 1.
  • a dryer 7 is arranged adjacent to the cyclone 1.
  • a steam supply tube 8 is connected to the other end of the supply duct 5.
  • the steam supply tube 8 includes an on-off valve 9 which adjusts the amount of supply of steam.
  • a heater 10 is arranged in the supply duct 5 in a position between a connection part of the steam supply tube 8 and the inlet 2 of the cyclone 1.
  • a tobacco material supply section 11 is connected to the supply duct 5 in a position between the heater 10 and the inlet 2 of the cyclone 1 via a first air locker 12.
  • the outlet 4 of the cyclone 1 is connected to a discharge duct 13, and a second air locker 14 is interposed in the discharge duct 13.
  • a transportation member such as a vibratory conveyor 15
  • the vibratory conveyor 15 conveys tobacco material discharged from the cyclone 1 to the dryer 7.
  • a belt conveyor may be used instead of the vibratory conveyor as the transportation member.
  • a drain separator 16 and an exhaust fan 17 are connected in this order to the exhaust duct 6 from the vent 3 of the cyclone 1.
  • the other end of the exhaust duct 6 is made open so as to discharge steam circulating therein to the outside, or connected to the dryer 7 via a branch duct 18 so as to be reused as a drying source of the dryer 7.
  • a diaphragm valve 19 is arranged in the branch duct 18.
  • a pressure gauge 20 is connected to the branch duct 18 in a position on the side of the dryer 7 from the diaphragm valve 19.
  • An aperture of the diaphragm valve 19 is controlled on the basis of pressure detection data (pressure detection signal) from the pressure gauge 20.
  • Tobacco material (such as cut stems) is prepared.
  • the cut stems are obtained by conditioning rod-like stem material to a moisture content of 20-40% by weight (wet basis), rolling the conditioned stem material using a rolling mill with 0.5-1.2 mm roll pitches, and then shredding the rolled stem material into 0.1-0.3 mm widths.
  • Dry saturated steam at a gauge pressure of 1-7 bars is sprayed into the supply duct 5 from the steam supply tube 8.
  • the steam flow is heated by the heater 10 of the supply duct 5 as necessary.
  • the cut stem s are continuously supplied to the supply duct 5 from the tobacco material supply section 11 via the first air locker 12.
  • the cut stems flow into the cyclone 1 from the supply duct 5 together with the steam flow at temperatures of 100-160°C, and swirl together with the steam flow.
  • the cut stems increase in moisture content to a level equal to a moisture level before the steam is supplied, or by 5% by weight, and is sufficiently moistened and swollen.
  • the circulation time in the supply duct 5 and the swirling time in the cyclone 1 should be 0.5-5 seconds, for example.
  • the cut stems are separated from the steam flow.
  • the separated cut stems are discharged to the vibratory conveyor 15 via the second air locker 14 from the discharge duct 13 connected to the outlet 4 of the cyclone 1.
  • the exhaust fan 17 When the exhaust fan 17 is driven, the steam flow is discharged to the exhaust duct 6 from the outlet 3 of the cyclone 1, from which the steam flow is discharged to the outside. While the steam flow circulates in the exhaust duct 6, water condensed in the steam flow is discharged from the drain separator 16.
  • the moistened cut stems are conveyed to the dryer (pneumatic conveying dryer, for example) 7 via the vibratory conveyor 15.
  • the moistened cut stems are dried in the pneumatic conveying dryer 7, and thereby expanded. Drying in the pneumatic conveying dryer 7 can be performed using a superheated steam flow or a heated air flow.
  • the superheated steam flow should preferably have a temperature higher than that of the steam supplied to the cyclone 1, within the range of temperatures of 160-280°C.
  • an aperture of the diaphragm valve 19 arranged in the branch duct 18 is controlled on the basis of pressure detection data (pressure detection signal) from the pressure gauge 20, and a desired amount of steam flow circulating in the branch duct 18 is introduced into the pneumatic conveying dryer 7.
  • the obtained expanded cut stems have a moisture content of 3-15% by weight.
  • the expanded cut stems have filling capacity of 580-750 cc per 100 g, and can improve the filling ability by approximately 30-70% compared to the filling capacity (450 cc per 100 g) of undried cut stems immediately after shredding.
  • a step of drying cut stems in a system of a second cyclone 21 and a second circulation duct 25 when the moisture content has dropped to 10% or less by weight, for example, it is permitted to condition the cut stems by a known method, for example, by spraying water.
  • the cut stems can be efficiently contacted with a steam flow in a dispersed state, without being damaged.
  • Generation of a swirling flow by the cut stems and the steam flow in the cyclone 1 makes it possible to increase the residence time of the cut stems in the steam flow even if the apparatus is reduced in size.
  • the cut stems can be efficiently moistened and swollen, and by causing the pneumatic conveying dryer 7 to dry the cut stems thereafter, expanded cut stems with increased filling capacity can be obtained.
  • the apparatus Since the cyclone 1 and the supply duct 5 installed in the expanding apparatus have an extremely simplified structure which does not require a rotary component or a mesh screen as in conventional apparatuses, the apparatus is excellent in durability and is capable of performing the steps of moistening and drying of the cut stems continuously.
  • the branch duct 18 divided from the exhaust duct 6 connected to the vent 3 of the cyclone 1 and connecting the branch duct 18 to the pneumatic conveying dryer 7 (such as a pneumatic conveying dryer which uses a superheated steam flow)
  • steam circulating in the branch duct 18 from the cyclone 1 via the exhaust duct 6 can be efficiently used as a part of superheated steam of the dryer 7, thereby achieving energy-saving operation.
  • Example 1 a drying step was performed using the pneumatic conveying dryer 7 of FIG. 1 .
  • Rod-like stem material of flue-cured tobacco of 100% by weight was conditioned by a method known to a person skilled in the art, e.g. by spraying water or steam, to a moisture content of 37% by weight, for example. Cut stems as tobacco material was prepared by causing a pair of rollers arranged at an interval of 0.8 mm to roll the rod-like stems, and then shredding the stems into 0.2 mm widths.
  • the cut stems were continuously introduced into the pneumatic conveying dryer 7 at a flow quantity of 25 kg/time by wet weight basis.
  • the pneumatic conveying dryer is formed of a duct measuring approximately 100 mm in diameter and approximately 22 m in length, and a cyclone measuring approximately 460 mm in diameter and including a separator with an effective height of approximately 1.4 m.
  • the dried medium circulating in the duct at a slot of the cut stems is adjusted by supplying 40 kg/time of saturated steam at a gauge pressure of 2 bars (0.2 MPa), such that the steam ratio becomes 90% by volume (which can be regarded as being approximately equal to a superheated steam flow) and the rate of flow becomes 25 m/s. That is, the cut stems circulated in the duct together with the superheated steam flow at 280°C, swirled and dried in the cyclone together with the superheated steam flow, and were thereby expanded.
  • the residence time by the swirling was 5 seconds.
  • Cut stems were dried and expanded in a manner similar to that of Example 1, except that the temperatures of the superheated steam flow circulating together with the cut stems were set to 260 and 210°C, respectively, in the duct of the pneumatic conveying dryer 7.
  • Example 4 the apparatus for expanding tobacco material shown in FIG. 1 was used.
  • Cut stems (37% by weight in moisture content and 0.2 mm in width) subjected to a process similar to that of Example 1 was prepared.
  • the cut stems were introduced into the cyclone 1 (approximately 250 mm in diameter and including a separator with an effective height of approximately 0.75 m) together with the steam flow from the supply duct 5, and swirled together with the steam flow, and were thereby moistened and swollen.
  • the transit time in the supply duct 5 and the cyclone 1 (residence time was 1.5 seconds) was approximately 1.8 seconds.
  • the moisture content of the moistened cut stems was 39% by weight, which had increased by 2% by weight from the moisture content (37% by weight) at the time of conditioning.
  • the moistened cut stems discharged from the cyclone 1 were continuously introduced into the pneumatic conveying dryer 7 via the vibratory conveyor 15, and the moistened cut stems were dried by a superheated steam flow under conditions similar to those of Example 1, and thereby expanded.
  • the temperature of the superheated steam was set to 280°C.
  • Moistened cut stems were dried and expanded in a manner similar to that of Example 4, except that the temperature of the superheated steam flow circulating together with the cut stems was set to 215°C, in the duct of the pneumatic conveying dryer 7.
  • the expanded cut stems obtained in Examples 1-5 were stored (conditioned) for 1 week in a constant temperature and humidity room at a temperature of 22.0°C and a relative humidity of 60%. After the equilibrium moisture content was obtained, the filling capacity was measured.
  • the filling capacity indicates the filling ability when the tobacco shreds are filled in rolling paper so as to be smoked.
  • the measurement was performed using D51 from Borgwaldt, Germany.
  • the examination was performed by measuring the filling capacity of the expanded cut stems 5 times repeatedly and calculating an average value.
  • the moisture content of the expanded cut stems was obtained as an average value of 5 points calculated from difference in weight before and after drying, after putting approximately 2 g of expanded cut stems into a weighing bottle and letting the expanded cut stems dry for 1 hour in a natural convection oven at a temperature of 100°C.
  • Example 1 The filling capacity and the moisture content of the expanded cut stems of Examples 1-5 are shown in Table 1.
  • Table 1 Whether moistening was performed and steam temperature thereof Superheated steam temperature (°C) during drying Moisture content (% by weight) of cut stems Filling capacity (cc/100g) During conditioning After drying Example 1 No 280 37.0 5.0 565 Example 2 No 260 37.0 6.0 560 Example 3 No 210 37.0 13.0 535 During moistening After drying Example 4 Yes (150°C) 280 39.0 7.0 620 Example 5 Yes (150°C) 215 39.0 12.0 610
  • Improvement in filling capacity by 50 cc per 100 g or greater corresponds to approximately 10% in percentage. Since the filling capacity of unprocessed cut stems before being dried (after being conditioned and shredded) is 410 cc per 100 g, the expansion coefficient had increased to 51% in Example 4, for example, which demonstrates that the present method is an excellent expanding method.
  • Rod-like stem material obtained by mixing 70% by weight of flue-cured tobacco and 30% by weight of barley tobacco was conditioned to a moisture content of 37% by weight, by a method known to a person skilled in the art, e.g. by spraying water or steam. Cut stems as tobacco material were prepared by causing a pair of rollers arranged at an interval of 0.8 mm to roll the rod-like stems, and then shredding the rolled stems into 0.2 mm widths.
  • a moistening device including a tunnel-type vibratory conveyor and including a plurality of holes, from which steam was sprayed, in a lower surface of the conveyor was prepared. External dimensions of this device were 3800 mm in length, 400 mm in width, and 1500 mm in height, and a steam spray section was 2400 mm in length.
  • the cut stems were supplied onto the tunnel-type vibratory conveyor of the moistening device at 320 kg/time by wet weight basis. While the cut stems are conveyed via the tunnel-type vibratory conveyor, saturated steam at a gauge pressure of 5 bars (0.5 MPa) at a temperature of 150°C is sprayed toward the cut stems from a plurality of holes in the lower surface of the conveyor at 130 kg/time (total amount of steam sprayed in the steam spray section), and thereby the cut stems were moistened and swollen.
  • the water content in the moistened cut stems was 39.0% by weight, which had increased by 2% by weight from the water content (37.0% by weight) at the time of conditioning.
  • the conditioned and swollen cut stems were continuously supplied to the pneumatic conveying dryer with a structure similar to that of Example 1 at the flow quantity of 25 kg/time by wet weight basis, and were dried and swollen by a superheated steam flow (at a temperature of 220°C) under conditions similar to those of Example 1.
  • the cut stems were introduced from the supply duct 5 into the cyclone 1 (approximately 250 mm in diameter and including a separator with an effective height of approximately 0.75 m) together with the steam flow, swirled together with the steam flow, and were thereby moistened and swollen.
  • the transit time in the supply duct 5 and the cyclone 1 (residence time was 1.5 seconds) was approximately 1.8 seconds.
  • the moisture content of the moistened cut stems was 39% by weight, which had increased by 2% by weight from the moisture content (37% by weight) at the time of conditioning.
  • the moistened cut stems discharged from the cyclone 1 was continuously introduced into the pneumatic conveying dryer 7 via the vibratory conveyor 15, and the moistened cut stems were dried and swollen by a superheated steam flow under conditions similar to those of Example 1.
  • the temperature of the superheated steam was set to 220°C.
  • the expanded cut stems obtained in Examples 6 and 7 were stored (conditioned) in a constant temperature and humidity room at a temperature of 22.0°C and a relative humidity of 60% for 1 week. After the equilibrium moisture content was obtained, filling capacity was measured in a manner similar to those of Examples 1-5.
  • Example 7 in which cut stems were moistened and swollen in a cyclone and dried by a superheated steam flow, the filling capacity can be increased compared to Example 6, in which cut stems were moistened and swollen by a tunnel-type vibratory conveyor including a plurality of holes from which steam was sprayed, and were dried using a superheated steam flow.

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Claims (9)

  1. Procédé d'expansion de matière tabac, comprenant les étapes suivantes :
    humidifier et faire gonfler une matière tabac en faisant tourner la matière tabac conjointement avec un flux de vapeur à des températures de 100 à 160 °C au contact de celle-ci dans un cyclone ; et
    sécher la matière tabac après qu'elle a été humidifiée et qu'elle a gonflé.
  2. Procédé selon la revendication 1, dans lequel avant d'être en contact avec le flux de vapeur, la matière tabac est conditionnée à raison de 15 à 50 % en poids.
  3. Procédé selon la revendication 1, dans lequel la matière tabac humidifiée et gonflée a une teneur en humidité égale à celle de la matière tabac avant d'être en contact avec le flux de tabac, ou une teneur en humidité qui a augmenté d'au plus 5 % en poids.
  4. Procédé selon la revendication 1, dans lequel le temps de séjour du fait de l'agitation rotative est de 0,5 à 5 seconde(s).
  5. Procédé selon la revendication 1, dans lequel le séchage de la matière tabac est réalisé par mise en contact de la matière tabac avec un flux de vapeur surchauffée ou de l'air chaud.
  6. Procédé selon la revendication 5, dans lequel le flux de vapeur surchauffée a une température supérieure à la température de la vapeur.
  7. Procédé selon l'une quelconque des revendications 1 à 6, dans lequel la matière tabac consiste en des côtes coupées.
  8. Appareil d'expansion de matière tabac, comprenant :
    un cyclone (1) présentant une entrée (2), un évent, évent (3), et une sortie, sortie (4),
    le cyclone étant conçu pour humidifier et faire gonfler une matière tabac en faisant tourner la matière tabac conjointement avec un flux de vapeur à des températures de 100 à 160 °C au contact de celle-ci ;
    un conduit d'alimentation (5) raccordé à l'entrée (2) du cyclone ;
    un conduit d'échappement (6) raccordé à l'évent du cyclone ;
    une section d'alimentation en vapeur raccordée au conduit d'alimentation ;
    une section d'alimentation en matière tabac (11) raccordée au conduit d'alimentation à une position située entre une partie de raccordement de la section d'alimentation en vapeur et l'entrée du cyclone ; et
    un séchoir (7) vers lequel est acheminée la matière tabac évacuée depuis la sortie du cyclone et conçu pour sécher la matière tabac.
  9. Appareil selon la revendication 8, dans lequel le conduit d'évacuation se ramifie en un conduit secondaire qui est raccordé au séchoir.
EP11862760.3A 2011-03-31 2011-03-31 Dispositif et procédé d'expansion du tabac Active EP2692247B1 (fr)

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PCT/JP2011/058342 WO2012132008A1 (fr) 2011-03-31 2011-03-31 Dispositif et procédé d'expansion du tabac

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EP2692247A1 EP2692247A1 (fr) 2014-02-05
EP2692247A4 EP2692247A4 (fr) 2014-11-12
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GB2513631B (en) * 2013-05-02 2018-08-15 Jt Int Sa A vaporisable material for use in a vapour generating device
JP6560125B2 (ja) * 2013-12-26 2019-08-14 日本たばこ産業株式会社 たばこ材料の製造方法及びその製造方法により製造されたたばこ材料
CN103892441B (zh) * 2014-03-26 2016-06-01 河南中烟工业有限责任公司 一种烟草浸梗水回收利用方法
CN104082849B (zh) * 2014-08-01 2016-02-03 云南中烟工业有限责任公司 一种两段式烟梗微波膨胀处理方法
CN106805282A (zh) * 2017-02-16 2017-06-09 红塔烟草(集团)有限责任公司 一种管道气流式干燥物料的含水率控制方法
WO2019004003A1 (fr) * 2017-06-28 2019-01-03 日本たばこ産業株式会社 Procédé d'estimation de la propriété de gonflement d'une tige de tabac en feuilles
CN108523209A (zh) * 2018-06-29 2018-09-14 江苏中烟工业有限责任公司 一种烟梗处理方法
IT202000004129A1 (it) * 2020-02-27 2021-08-27 Magg Consulting S R L Metodo perfezionato per il trattamento del tabacco.

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Also Published As

Publication number Publication date
EP2692247A4 (fr) 2014-11-12
JPWO2012132008A1 (ja) 2014-07-24
EP2692247A1 (fr) 2014-02-05
WO2012132008A1 (fr) 2012-10-04
JP5948316B2 (ja) 2016-07-06

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