EP0764408B1 - Verfahren und Vorrichtung zum Abreichern von Nitrat aus Tabakrippen - Google Patents
Verfahren und Vorrichtung zum Abreichern von Nitrat aus Tabakrippen Download PDFInfo
- Publication number
- EP0764408B1 EP0764408B1 EP96111618A EP96111618A EP0764408B1 EP 0764408 B1 EP0764408 B1 EP 0764408B1 EP 96111618 A EP96111618 A EP 96111618A EP 96111618 A EP96111618 A EP 96111618A EP 0764408 B1 EP0764408 B1 EP 0764408B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- tobacco
- water
- ribs
- set forth
- 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.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
Definitions
- the invention relates to a process for the depletion of nitrate from tobacco ribs by the preamble of claim 1 defined genus and a device for Execution of this procedure.
- Water or steam is usually applied to the tobacco ribs in several stages sprayed on, and the tobacco ribs are between the individual stages of the Spray treatment temporarily stored. Then they are crushed, if necessary sauce and dried.
- the disadvantage of this method is the long treatment time for the tobacco stems.
- DE-C-34 19 655 describes a process for producing a low-nitrate Described tobacco product by extracting soluble components from a tobacco variety, the tobacco variety is first combined with water in a known manner to make such a slurry. Then most of the water is with the dissolved components from the slurry, leaving the water Saturated tobacco is removed, after which some of the dissolved components are removed from the water be separated and at least part of the water for the production of another Tobacco water slurry is recycled. This procedure is used at atmospheric conditions.
- US-A-3,575,178 shows a method for increasing the filling capacity of tobacco the tobacco and an impregnating organic liquid in one zone with each other Brought into contact and the contact of the tobacco with vapors of the organic liquid another zone until the tobacco is thoroughly impregnated.
- the tobacco is then withdrawn from the impregnation zone and opened immediately under reduced pressure warms an elevated temperature, causing expansion to occur.
- the impregnation takes place in a housing with a screw conveyor.
- GB-A-914 473 shows an apparatus and a method for continuous Extraction of substances from solid materials, also with a housing Screw conveyor is used.
- the extraction takes place under increased pressure, whereby the extracting water is sprayed against the solid to the extracted substances wash out, and then the extracted solids and the solution of the extracted Substances in which water is drawn off.
- a process for the depletion of nitrate from tobacco ribs of the specified genus as well a device for carrying out the method finally go from US-A-5,360,002 forth.
- the tobacco ribs are inserted into the interior of a housing, with a screw conveyor through a water bath, which is at the lower end of the Housing collects up to the level of an outlet opening, and finally out of the housing spent.
- the invention has for its object a method of this type and Device for performing the method for fast and inexpensive Depleting nitrate from tobacco ribs.
- the following effect can be achieved by the method according to the invention: Put the tobacco ribs into a water bath with continuous mixing, whereby at the same time the prevailing pressure to a pressure above normal atmospheric pressure lying level is raised or is already raised, so a quick one Depletion of nitrate from the tobacco stems into the water instead. This nitrate depletion is up to 80% and can be done within 1 to 6 minutes.
- Another advantage of the method according to the invention is that a large number of Parameters can be set so that with appropriate parameterization of the method the amount of nitrate depleted from the tobacco stems can be determined relatively accurately can.
- the tobacco pipe ribs are also moistened quickly, i.e. within 1 to 6 minutes so that they immediately cut moisture depending on the selected process conditions own or the cutting moisture can be adjusted after subsequent treatment without Dust accumulates and there is a considerable loss of material.
- These moistened tobacco ribs e.g. of Burley tobacco, with a moisture content of around 70 Mass%, can with dry material.
- the additional tobacco ribs such as for example the Virginia tobacco ribs, are not moistened, which causes the Reduce the cost of making such a cutable mixture.
- Another advantage is that under pressure and correspondingly high temperatures moistened tobacco ribs are more durable than tobacco ribs with the previous one Wet processes are treated.
- Water is a relatively inexpensive solvent that works very well for nitrate depletion is suitable.
- the process is particularly preferably carried out at an elevated temperature, since this increases the efficiency of the method even further.
- the method takes place in a continuous flow of tobacco ribs and preferably water instead, so that it can be integrated into a continuously working process.
- Water being exchanged continuously can prevent it from entering the water an enrichment of the nitrate salts extracted from the tobacco stems, which the Nitrate depletion of the tobacco ribs would destroy.
- the ratio of the mass flow of dry tobacco stems to the mass flow of Water is particularly preferably 0.25.
- the gaseous phase of water i.e. water vapor, serves to overpressure and thus set an elevated temperature in the extractor, thereby depleting the Nitrate is optimized and accelerated. It is particularly important to ensure that the Level of the water bath is kept constant because of the damp tobacco ribs water is carried out.
- the nitrate depletion takes place in two stages: the Tobacco ribs in the water bath go through a first depletion process, get into the area of the housing with constant mixing, where there is another Water supply, in particular in the form of a nozzle, which is another second Depletion process by exchanging the surface water on the ribs for fresh water causes.
- water vapor is continuously released, preferably below elevated temperatures and excess pressure, so that the in the liquid phase of the Water prevailing pressure as well as the temperature and thus the conditions in the Housing can be adjusted precisely.
- the speed of the screw conveyor can be varied, as a result of this the dwell time of the tobacco ribs in the housing can be set, which is usually is about 1 to 6 minutes.
- the residence time can also be determined by the geometry of the Screw conveyor, e.g. their incline or pitch or length are set.
- the housing becomes continuous at one point withdrawn water is fed back to the housing at a second point, while still there goes through different process stages, e.g. the addition of more water to the water withdrawn from the housing, consisting of a mixture of liquid and gaseous phase to condense.
- the water supply is preferred fresh water not loaded with nitrate.
- the process is preferably carried out at an absolute pressure of about 1.5 bar to 3.0 bar, performed in particular at about 1.9 bar. So there is during the procedure Overpressure of about 0.5 bar to 2.0 bar, preferably about 0.9 bar in the housing.
- the device for performing the method has an elongated, approximately cylindrical housing with a screw conveyor arranged in it and is pressure-resistant educated. Flameproof locks and / or nozzles are also provided for water and / or to be able to feed or remove tobacco ribs continuously.
- the longitudinal axis of the Housing is inclined at an angle to the horizontal, preferably at an angle of 5 ° to 20 °, in particular 10 °, since this oblique position enables better mixing of the preferably in the longitudinal direction through the housing tobacco ribs with the Water bath takes place, which collects at the lower end of the housing.
- Pressure conditioning screw has a pressure-resistant, elongated, cylindrical Housing 9, which is sealed off at both ends by means of pressure-resistant locks 3, 4. An overpressure of about 0.9 bar prevails in the housing.
- the longitudinal axis of the Pressure conditioning screw 1 is at an angle a of about 10 ° to the horizontal inclined.
- a conveyor screw 2 is arranged in the center of the pressure conditioning screw 1, which around its central axis 8, which is also the central axis of the pressure conditioning screw 1 is rotatably mounted.
- the housing 9 has steam nozzles 6 through which the Steam can be applied to the interior of the pressure conditioning screw 1.
- About the Water nozzles 7 are distributed over the entire length of the pressure conditioning screw 1, through which water is led into the interior of the pressure conditioning screw 1.
- At the lower end of the pressure conditioning screw 1 collects a water bath 12 during operation, which has a certain level regulated by water supply and drainage. In the rest The interior of the pressure conditioning screw 1 is located above the water bath Steam 13.
- Burley tobacco dry ribs R rich in nitrate arrive from a mass metering unit 5 via the pressure-resistant lock 3 of the pressure conditioning screw 1 into the interior of the housing 9. There they are moved by the screw conveyor 2 with constant rotation Directed the upper end of the pressure conditioning screw 1. Go through it First, the water bath 12 and then the interior of the pressure conditioning screw 1, which is filled with water vapor 13. If the nitrate-rich Ribs R first the water bath 12 and then the one filled with water vapor 13 Pass through the interior of the housing 9, they are moistened, which in the ribs R located nitrate salts with the help of the solvent water 12 from the ribs R. and go into the solvent.
- the low-nitrate ribs are rinsed with fresh solvent from the nozzle 14 in order to Exchange surface solvent of the ribs.
- the whole process is carried out at high temperatures in the range of about 100 ° to 130 ° C. performed in particular at about 118 ° C, whereby the durability of the tobacco ribs R, R ' is improved.
- the dwell time of the tobacco ribs R in the housing 9 and in particular in the water bath can be set or regulated, whereby the throughput time of the tobacco ribs is normally through the housing is in the range of one to six minutes. An exact one
- the dwell time can be set in particular by regulating the speed of the Screw conveyor 2 can be reached.
- the ratio of mass flow of dry tobacco in kg / mass flow of water in kg should be in Range from about 0.5 to about 0.031 and preferably about 0.25.
- FIG. 2 shows the dependence of the nitrate content of the tobacco ribs R 'on the throughput time the tobacco ribs R ', by the device according to the invention.
- the had given up Ribs R have a nitrate content of about 5.25%.
- the absolute pressure in the pressure conditioning screw 1 was 1.9 bar at a temperature of 118 ° C.
- the mass flow of the dry tobacco ribs was set at 45 kg / h.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Tobacco Products (AREA)
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Glass Compositions (AREA)
- Catalysts (AREA)
Description
- Figur 1
- ein Flussdiagramm der an dem Verfahren beteiligten Materialströme sowie die schematische Darstellung einer Druckkonditionier-Schnecke, und
- Figur 2
- ein Beispiel für die Abhängigkeit des Nitratgehaltes der behandelten Tabakrippen von der Durchlaufzeit durch die erfindungsgemäße Vorrichtung.
Claims (11)
- Verfahren zum Abreichern von Nitrat aus Tabakrippen, bei dema) die Tabakrippen (R, R') in das Innere eines Gehäuses (9) eingegeben,b) mit einer Föderschnecke (2) durch ein Wasserbad (12) geführt, undc) aus dem Gehäuse (9) ausgegeben werden,
dadurch gekennzeichnet, daßd) das Innere des Gehäuses (9) mit Druck beaufschlagt wird,e) die Tabakrippen (R, R') mit der Förderschnecke (2) nach Durchlaufen des Wasserbades (12) im Gehäuse (9) durch Wasserdampf (13) geführtf) und beim Durchlaufen der Behandlung mit Wasserdampf (13) einer Wasserdusche unterworfen werden,g) wobei die Durchlaufzeit durch das Gehäuse (9) im Bereich von 1 bis 6 Minuten liegt. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß in dem Gehäuse (9) eine Temperatur von 100°C bis 130°C, vorzugsweise 118°C aufrechterhalten wird.
- Verfahren nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß Burley-Tabakrippen behandelt werden.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß ein kontinuierlicher Strom von Tabakrippen (R, R') und/oder Wasser (12) verwendet wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Wasser (12) ständig ausgetauscht wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß dem Gehäuse (9) Wasserdampf (13) zugeführt wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Verweilzeit der Tabakrippen in dem Wasserbad (12) eingestellt wird, insbesondere durch die Justierung der Fördergeschwindigkeit.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Massenstrom der Tabakrippen (R, R') so eingestellt wird, daß das Verhältnis Massenstrom trockener Tabak in kg zu Massenstrom Wasser in kg im Bereich von 0,5 bis 0,031, insbesondere bei 0,25 liegt.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in dem Gehäuse (9) ein absoluter Druck von 1,5 bar bis 3,0 bar, insbesondere 1,9 bar, aufrechterhalten wird.
- Vorrichtung zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche mita) einem langgestreckten, in etwa zylindrischen, druckfesten Gehäuse (9),b) einer im Gehäuse (9) angeordneten, drehbaren Förderschnecke (2),c) druckfesten Schleusen (3, 4) als Einrichtungen zum Zu- und Abführen von Wasser und/oder Wasserdampf (12, 13) sowie Tabakrippen, wobeid) die Längsachse des Gehäuses (9) unter einem Winkel (α) von 5° bis 20° gegen die Horizontale geneigt ist, so daß sich im unteren Bereich des Gehäuses (9) ein Wasserbad befindet,
dadurch gekennzeichnet, daße) das Gehäuse Düsen (6, 7, 10) für die Zuführung von Wasser und/oder Wasserdampf undf) eine Düse (14) zum Abspülen der Rippen nach Durchlaufen des Wasserbades aufweist. - Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, daß die Längsachse des Gehäuses (9) unter einem Winkel (α) von 10° gegen die Horizontale geneigt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19535587 | 1995-09-25 | ||
DE19535587A DE19535587C2 (de) | 1995-09-25 | 1995-09-25 | Verfahren und Vorrichtung zum Abreichern von Nitrat aus Tabakrippen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0764408A2 EP0764408A2 (de) | 1997-03-26 |
EP0764408A3 EP0764408A3 (de) | 1998-02-04 |
EP0764408B1 true EP0764408B1 (de) | 2001-09-05 |
Family
ID=7773107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96111618A Expired - Lifetime EP0764408B1 (de) | 1995-09-25 | 1996-07-18 | Verfahren und Vorrichtung zum Abreichern von Nitrat aus Tabakrippen |
Country Status (7)
Country | Link |
---|---|
US (1) | US5791353A (de) |
EP (1) | EP0764408B1 (de) |
AT (1) | ATE205057T1 (de) |
AU (1) | AU705244B2 (de) |
BR (1) | BR9604293A (de) |
DE (2) | DE19535587C2 (de) |
ES (1) | ES2162963T3 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6135121A (en) | 1996-06-28 | 2000-10-24 | Regent Court Technologies | Tobacco products having reduced nitrosamine content |
US6311695B1 (en) | 1996-06-28 | 2001-11-06 | Regent Court Technologies | Method of treating tobacco to reduce nitrosamine content, and products produced thereby |
USRE38123E1 (en) | 1996-06-28 | 2003-05-27 | Regent Court Technologies, Llc. | Tobacco products having reduced nitrosamine content |
US6202649B1 (en) * | 1996-12-02 | 2001-03-20 | Regent Court Technologies | Method of treating tobacco to reduce nitrosamine content, and products produced thereby |
US6805134B2 (en) * | 1999-04-26 | 2004-10-19 | R. J. Reynolds Tobacco Company | Tobacco processing |
GB0225691D0 (en) * | 2002-11-05 | 2002-12-11 | Souza Cruz Sa | Improvements relating to the removal of soluble components from tobacco material and apparatus therefor |
DE10304629B4 (de) * | 2003-02-05 | 2008-10-30 | British American Tobacco (Germany) Gmbh | Druckkonditionierungsverfahren |
CN100577041C (zh) * | 2006-12-11 | 2010-01-06 | 江苏智思机械制造有限公司 | 烟梗在线膨胀设备及使用该设备的烟梗处理方法 |
CN101116529B (zh) * | 2007-08-31 | 2010-11-10 | 云南瑞升烟草技术(集团)有限公司 | 一种烟梗加工过程中的烟梗离线预处理方法 |
DE102008052720B4 (de) * | 2008-10-22 | 2014-01-02 | British American Tobacco (Germany) Gmbh | Extraktive Tabakmaterial-Extrusion |
US8151804B2 (en) | 2008-12-23 | 2012-04-10 | Williams Jonnie R | Tobacco curing method |
CA2799320C (en) | 2010-05-21 | 2019-07-23 | Global Vapor Trademarks Incorporated | Method for preparing tobacco extract for electronic smoking devices |
CN102715633A (zh) * | 2010-06-21 | 2012-10-10 | 江苏智思机械集团有限公司 | 蒸汽润梗处理设备 |
US20150027453A1 (en) * | 2012-03-06 | 2015-01-29 | Ht Nutri Sàrl | Method of processing tobacco and its by-products |
CN102907755B (zh) * | 2012-09-03 | 2015-07-15 | 上海聚华科技股份有限公司 | 使烟草物与回填料液均化混合的方法 |
CN103892455A (zh) * | 2014-04-15 | 2014-07-02 | 安徽中烟工业有限责任公司 | 一种在造纸法薄片线上使用的烟梗预处理方法 |
CN104886752B (zh) * | 2015-04-29 | 2016-09-07 | 湖北中烟工业有限责任公司 | 提高白肋烟在淡雅香卷烟中可用性的预处理方法 |
CN107736643B (zh) * | 2017-11-30 | 2020-05-05 | 红云红河烟草(集团)有限责任公司 | 一种使用tht的烟梗烘烤加工方法 |
CN111053278B (zh) * | 2018-10-15 | 2023-05-02 | 上海新型烟草制品研究院有限公司 | 一种加热不燃烧烟草制品的制备方法及其烟草制品 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1208732B (de) * | 1960-03-28 | 1966-01-13 | Fmc Corp | Verfahren und Vorrichtung zur Extraktion von Stoffen aus Festkoerpermaterial mit heissem Loesungsmittel |
US3575178A (en) * | 1969-03-13 | 1971-04-20 | Reynolds Tobacco Co R | A process for increasing the filling capacity of tobacco |
US3612066A (en) * | 1970-02-05 | 1971-10-12 | Reynolds Tobacco Co R | Denicotinizing process |
DE3101768A1 (de) * | 1981-01-21 | 1982-08-26 | Fabriques de Tabac Réunies S.A., 2003 Neuchâtel | Vorrichtung zum extrahieren von fluessigkeitsloeslichen bestandteilen aus kleingeschnittenem pflanzengut |
US4566468A (en) * | 1983-05-25 | 1986-01-28 | Brown & Williamson Tobacco Corporation | Process and system for making a blended tobacco product |
US5360022A (en) * | 1991-07-22 | 1994-11-01 | R. J. Reynolds Tobacco Company | Tobacco processing |
US5230354A (en) * | 1991-09-03 | 1993-07-27 | R. J. Reynolds Tobacco Company | Tobacco processing |
-
1995
- 1995-09-25 DE DE19535587A patent/DE19535587C2/de not_active Expired - Fee Related
-
1996
- 1996-07-18 ES ES96111618T patent/ES2162963T3/es not_active Expired - Lifetime
- 1996-07-18 EP EP96111618A patent/EP0764408B1/de not_active Expired - Lifetime
- 1996-07-18 DE DE59607619T patent/DE59607619D1/de not_active Expired - Lifetime
- 1996-07-18 AT AT96111618T patent/ATE205057T1/de active
- 1996-09-12 US US08/713,215 patent/US5791353A/en not_active Expired - Lifetime
- 1996-09-24 AU AU65806/96A patent/AU705244B2/en not_active Ceased
- 1996-09-24 BR BR9604293A patent/BR9604293A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0764408A2 (de) | 1997-03-26 |
ES2162963T3 (es) | 2002-01-16 |
AU705244B2 (en) | 1999-05-20 |
DE59607619D1 (de) | 2001-10-11 |
BR9604293A (pt) | 1998-05-26 |
ATE205057T1 (de) | 2001-09-15 |
DE19535587C2 (de) | 1998-01-22 |
AU6580696A (en) | 1997-03-27 |
DE19535587A1 (de) | 1997-03-27 |
US5791353A (en) | 1998-08-11 |
EP0764408A3 (de) | 1998-02-04 |
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