WO1995031117A1 - Instalacion y procedimiento para el curado de tabaco - Google Patents
Instalacion y procedimiento para el curado de tabaco Download PDFInfo
- Publication number
- WO1995031117A1 WO1995031117A1 PCT/ES1995/000054 ES9500054W WO9531117A1 WO 1995031117 A1 WO1995031117 A1 WO 1995031117A1 ES 9500054 W ES9500054 W ES 9500054W WO 9531117 A1 WO9531117 A1 WO 9531117A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- curing
- tobacco
- virginia
- installation
- air
- Prior art date
Links
- 241000208125 Nicotiana Species 0.000 title claims abstract description 61
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 33
- 241000196324 Embryophyta Species 0.000 title abstract 5
- 238000009434 installation Methods 0.000 claims description 36
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000001294 propane Substances 0.000 claims description 2
- 238000001723 curing Methods 0.000 claims 31
- 239000000446 fuel Substances 0.000 abstract description 3
- 230000003750 conditioning effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- A24B1/00—Preparation of tobacco on the plantation
- A24B1/02—Arrangements in barns for preparatory treatment of the tobacco, e.g. with devices for drying
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S432/00—Heating
- Y10S432/50—Tobacco barns
Definitions
- the installation and method for curing tobacco object of the present invention allows to carry out the curing process of Virginia type tobacco with a high efficiency in fuel consumption and with a great ease of handling.
- the proposed procedure can be applied in the current conveniently adapted tobacco curing facilities or in newly constructed ones that do not need a specific structure in their construction.
- the application of the method of the invention is compatible with any form of placing the tobacco leaves in the curing chambers: hung on bars by tweezers, placed on trays and also in bulk in boxes or containers.
- Curing of the Virginia type tobacco is carried out by passing hot air through the mature tobacco leaves (Spanish patent published with No. 8406174). The air is circulated by fans or by convection depending on the curing system and the tobacco processing method. The process begins with a hot and humid atmosphere at approximately 35 seconds, decreasing humidity and increasing the temperature gradually and over a period of several days to a maximum of approximately 70 seconds at the end of the curing process. Adequate ventilation should be provided so that moisture is removed from tobacco leaves in a controlled manner.
- Conventional Virginia-type tobacco curing facilities consist of curing chambers in which tobacco is independently processed, being regulated Separately the atmosphere of each of the curing chambers. The main problems presented by this process are:
- the installation for curing tobacco object of the present invention solves the problems mentioned in the previous section by connecting the curing chambers, so that the same air passes sequentially through each curing chamber, one behind the other creating A continuous flow of air.
- the air is heated to the required temperature before being introduced into the curing facility and when it passes through the tobacco it absorbs moisture, which causes a decrease in air temperature and an increase in humidity. This creates temperature and humidity gradients in the system that correspond exactly to the requirements of the curing process.
- Each curing chamber is therefore an integrated part of the installation.
- the devices used to heat the air are not relevant to the curing process and any one can be used as long as clean and uncontaminated air is obtained, for example gas burners or other fuel.
- Figure 1 Scheme of the installation for tobacco curing.
- Figure 2 Alternative scheme of the tobacco curing facility.
- FIG. 1 A diagram of the installation for the curing of tobacco object of the present invention is shown in Figure 1. After passing through a heating device and a discharge fan (9), the air enters through an inlet conduit (10) connected to all the curing chambers (1-8) of which the installation consists. These cameras can be constructed of wood, metal or factory work. Air can be introduced into each of these curing chambers through a series of valves (21-
- conduit (10) incorporates at the opposite end of the inlet an outlet valve (29) to the outside. In normal operation only one of these valves (21-28) is open to one of the curing chambers.
- valve (1) (in bulk, on trays or hanging from pinching bars) passes to a conduit (19) that connects with the next curing chamber (2) and successively passes through the remaining curing chambers (3-8) integrated into the installation.
- a series of valves (11-18) installed in each curing chamber (1-8) prevent the air from moving in the opposite direction once it has been introduced into the first curing chamber (1).
- These valves (11-18) are the same type as valves 21-28 and optionally each set of two valves (11 and 21, 12 and 22 etc.) can be replaced by a single double acting valve.
- connection line (19) between the curing chambers (1-8) can introduce the air through the top of each curing chamber, as shown in Figure 1, by the lower part, or alternatively, by the upper and lower parts of the successive curing chambers ( Figure 2).
- the air can be introduced and exited through the front, the back or the sides of the curing chambers according to what is convenient in each particular case; The direction of movement and the point of entry or exit of the air is not an important aspect for the inefficient process of curing Virginia tobacco by means of the installation object of the present invention.
- the air returns from the last chamber of the air flow sequence (8) to the first (1) through a connection conduit (20) provided with a series of valves (31 -38) to each cure chamber (1-8).
- the air is introduced into successive curing chambers (1-8) on correlative days so that, in terms of air flow, any of the chambers (1-8) can be the first in the sequence .
- the air Once the air has passed through the last required chamber, either of curing or final conditioning of the tobacco, it is expelled into the atmosphere either through an open loading door or through gates (41-48) that allow extracting the air from the chambers towards a duct 40.
- This air can, optionally, be passed through an exchanger (39) to condition it and return it to the inlet stream to "the installation in part, using, the remaining air for the conditioning of a tobacco storage chamber
- the conduit (20) is also provided with a valve (30) that allows the air to escape to the outside without passing to any chamber.
- the air Initial input is passed to the chamber immediately below, which becomes the first of the air flow sequence.
- the chamber that has completed the curing process is left laugh at room temperature and then connect to the last chamber of the flow sequence of air to receive the moist air that comes out of that curing chamber where the newly introduced green tobacco is.
- FIG. 1 depicts, as mentioned above, an alternative installation in which the introduction of air into the curing chambers (1-8) is done sequentially by the upper and lower parts of each chamber.
- the double-acting valve (11) allows the introduction of air from the supply fan (9) through the conduit (10) into the first curing chamber (1) or through successive valves (22- 28) in the following cameras (2-8).
- Figures 1 and 2 show the installations object of the present invention with the cameras arranged linearly.
- the curing chambers that make up the installation can adopt other provisions: in a circle, batteries of the same number of facing cameras etc.
- the connection pipes will adopt the most convenient arrangement without changing the principle in which the novelty and inventive activity of the installation resides, which is the continuous and sequential circulation of the air through the curing chambers. thereby acquiring the appropriate temperature and humidity characteristics at each stage of the tobacco curing process.
- a Virginia type tobacco curing system composed of 8 curing chambers constructed with sheet metal and with a volume of 15 m 3 each, is loaded with 1000 Kg. Of Virginia type tobacco, which makes a total of
- air is circulated at a rate of 5,500 m 3 / hour through the installation.
- the air heated to 70SC and with the ambient humidity (approx. 45%) is introduced through the upper part of the chamber containing the tobacco arranged in trays and which is in the last stage of the curing process.
- the contact time of the air with the tobacco at each temperature of the cycle is 24 hours.
- the air temperature drops to 66se.
- the air is passed to each of the remaining chambers that make up the installation, the entry point to each chamber being alternately the upper and lower part.
- the air temperatures in each chamber are given in the following table:
- Air outlet 302 The humidity of the air at the exit of the last chamber of the air flow sequence, in which the newly loaded green tobacco is found in the first stage of curing, is 90%.
- the tobacco that is in the last stage of curing first chamber of the air flow sequence at a temperature of 702C
- it is allowed to cool to room temperature.
- the moist air (90% humidity and 30se of temperature) coming from the chamber that at that time is the last of the air flow sequence, in order to condition it as to humidity to facilitate its handling.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Manufacture Of Tobacco Products (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/553,598 US5685710A (en) | 1994-05-12 | 1995-05-11 | Barn and procedure for Virginia type tobacco curing |
EP95917991A EP0719503A1 (en) | 1994-05-12 | 1995-05-11 | Plant and process for curing tobacco |
BR9506224A BR9506224A (pt) | 1994-05-12 | 1995-05-11 | Galpão e processo para cura de tabaco do tipo virginia |
BG100281A BG100281A (en) | 1994-05-12 | 1996-01-11 | Drier and method for virginia type tobacco drying |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ESP9401009 | 1994-05-12 | ||
ES09401009A ES2081257B1 (es) | 1994-05-12 | 1994-05-12 | Instalacion y procedimiento para el curado de tabaco. |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1995031117A1 true WO1995031117A1 (es) | 1995-11-23 |
WO1995031117B1 WO1995031117B1 (es) | 1995-12-28 |
Family
ID=8286199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES1995/000054 WO1995031117A1 (es) | 1994-05-12 | 1995-05-11 | Instalacion y procedimiento para el curado de tabaco |
Country Status (12)
Country | Link |
---|---|
US (1) | US5685710A (es) |
EP (1) | EP0719503A1 (es) |
CN (1) | CN1128490A (es) |
BG (1) | BG100281A (es) |
BR (1) | BR9506224A (es) |
CA (1) | CA2164421A1 (es) |
ES (1) | ES2081257B1 (es) |
PH (1) | PH31496A (es) |
PL (1) | PL312579A1 (es) |
UY (1) | UY23961A1 (es) |
WO (1) | WO1995031117A1 (es) |
ZA (1) | ZA953795B (es) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
TW416261B (en) * | 1997-04-24 | 2000-12-21 | Ciba Sc Holding Ag | Process and apparatus for the treatment of coated printed circuit boards |
US6586661B1 (en) | 1997-06-12 | 2003-07-01 | North Carolina State University | Regulation of quinolate phosphoribosyl transferase expression by transformation with a tobacco quinolate phosphoribosyl transferase nucleic acid |
US6805134B2 (en) * | 1999-04-26 | 2004-10-19 | R. J. Reynolds Tobacco Company | Tobacco processing |
DE19937901C2 (de) * | 1999-08-11 | 2001-06-21 | Eisenmann Kg Maschbau | Trockner für eine Lackieranlage |
US6911541B2 (en) * | 2000-08-30 | 2005-06-28 | North Carolina State University | Promoter fragment that is recognized by the product of the tobacco Nic gene |
WO2002053995A1 (en) | 2001-01-08 | 2002-07-11 | Advanced Dryer Systems, Inc. | Drying system with heat pipe heat recovery |
US6786220B2 (en) * | 2002-02-01 | 2004-09-07 | Philip Morris Incorporated | Tobacco curing barn |
EP1684603A2 (en) * | 2003-10-02 | 2006-08-02 | Vector Tobacco Ltd. | Tobacco product labeling system |
US6846177B1 (en) | 2003-12-02 | 2005-01-25 | Thomas W. Hutchens | Method and apparatus for facilitating a tobacco curing process |
AU2006247739A1 (en) * | 2005-05-11 | 2006-11-23 | Vector Tobacco Inc. | Reduced risk tobacco products and methods of making same |
US20100206317A1 (en) * | 2007-09-28 | 2010-08-19 | Vector Tobacco, Inc. | Reduced risk tobacco products and use thereof |
US8151804B2 (en) | 2008-12-23 | 2012-04-10 | Williams Jonnie R | Tobacco curing method |
US20120152265A1 (en) | 2010-12-17 | 2012-06-21 | R.J. Reynolds Tobacco Company | Tobacco-Derived Syrup Composition |
US8800571B2 (en) | 2012-06-01 | 2014-08-12 | R.J. Reynolds Tobacco Company | Method and system for moist tobacco extract isolation |
CN103859567B (zh) * | 2014-04-03 | 2015-08-19 | 贵州大学 | 一种热量分级循环利用的烟草烘烤方法及其系统结构 |
US9795162B2 (en) | 2016-02-08 | 2017-10-24 | R. J. Reynolds Tobacco Company | System for monitoring environmental conditions of a tobacco curing site |
GB201608317D0 (en) * | 2016-05-12 | 2016-06-29 | British American Tobacco Co | Apparatus and method for use in a flue-cured barn |
AP2017009754A0 (en) * | 2016-12-21 | 2017-02-28 | Universal Leaf Tobacco Co Inc | System and method for curing tobacco |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3367043A (en) * | 1965-04-21 | 1968-02-06 | Tobaccoless Smokes Inc | Modular control dryer |
US3866334A (en) * | 1973-09-26 | 1975-02-18 | Barney K Huang | Greenhouse-bulk curing and drying system |
US3932946A (en) * | 1972-09-11 | 1976-01-20 | Research Corporation | Modular tobacco handling and curing system and method |
US3935648A (en) * | 1974-11-07 | 1976-02-03 | Cox Jack R | Tobacco curing apparatus and method |
US4205460A (en) * | 1978-07-24 | 1980-06-03 | Taylor William J | Apparatus for drying fruit |
US4321758A (en) * | 1978-09-18 | 1982-03-30 | Fowler Joe W | Heat cycling apparatus and method |
ES8406174A1 (es) * | 1982-03-29 | 1984-07-16 | Modsa Pty Ltd | Un metodo de curar hojas de tabaco situadas en una instalacion de curar, y aparato correspondiente. |
US4499911A (en) * | 1980-12-09 | 1985-02-19 | Johnson William H | Energy efficient curing and drying system |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1060425A (en) * | 1912-09-17 | 1913-04-29 | Jacob Buehrer | Apparatus for drying pottery and the like. |
US1605634A (en) * | 1919-07-09 | 1926-11-02 | Ind Dryer Corp | Art of drying |
US3910757A (en) * | 1973-08-17 | 1975-10-07 | Miller Taylor | Mobile tobacco curing and drying system |
US4206554A (en) * | 1978-09-18 | 1980-06-10 | Fowler Joe W | Heat cycling apparatus and method for bulk curing tobacco |
ES475571A1 (es) * | 1978-11-30 | 1979-04-01 | Nebreda Olivieri S L | Perfeccionamientos en secaderos de tabaco en masa, por aire caliente y energia solar |
US4267645A (en) * | 1979-10-22 | 1981-05-19 | Hill Edwin W | Burner-fired combined with wood-fired apparatus for drying crops |
ZW881A1 (en) * | 1980-01-22 | 1981-07-08 | Modsa Pty Ltd | Tobacco curing |
ES1019048Y (es) * | 1991-10-24 | 1992-10-01 | Vizcaino Garcia Jose | Secadero de tabaco. |
-
1994
- 1994-05-12 ES ES09401009A patent/ES2081257B1/es not_active Expired - Fee Related
-
1995
- 1995-05-09 UY UY23961A patent/UY23961A1/es unknown
- 1995-05-10 ZA ZA953795A patent/ZA953795B/xx unknown
- 1995-05-11 WO PCT/ES1995/000054 patent/WO1995031117A1/es not_active Application Discontinuation
- 1995-05-11 CN CN95190418A patent/CN1128490A/zh active Pending
- 1995-05-11 BR BR9506224A patent/BR9506224A/pt not_active Application Discontinuation
- 1995-05-11 CA CA002164421A patent/CA2164421A1/en not_active Abandoned
- 1995-05-11 EP EP95917991A patent/EP0719503A1/en not_active Withdrawn
- 1995-05-11 US US08/553,598 patent/US5685710A/en not_active Expired - Fee Related
- 1995-05-11 PL PL95312579A patent/PL312579A1/xx unknown
- 1995-05-12 PH PH50514A patent/PH31496A/en unknown
-
1996
- 1996-01-11 BG BG100281A patent/BG100281A/xx unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3367043A (en) * | 1965-04-21 | 1968-02-06 | Tobaccoless Smokes Inc | Modular control dryer |
US3932946A (en) * | 1972-09-11 | 1976-01-20 | Research Corporation | Modular tobacco handling and curing system and method |
US3866334A (en) * | 1973-09-26 | 1975-02-18 | Barney K Huang | Greenhouse-bulk curing and drying system |
US3935648A (en) * | 1974-11-07 | 1976-02-03 | Cox Jack R | Tobacco curing apparatus and method |
US4205460A (en) * | 1978-07-24 | 1980-06-03 | Taylor William J | Apparatus for drying fruit |
US4321758A (en) * | 1978-09-18 | 1982-03-30 | Fowler Joe W | Heat cycling apparatus and method |
US4499911A (en) * | 1980-12-09 | 1985-02-19 | Johnson William H | Energy efficient curing and drying system |
ES8406174A1 (es) * | 1982-03-29 | 1984-07-16 | Modsa Pty Ltd | Un metodo de curar hojas de tabaco situadas en una instalacion de curar, y aparato correspondiente. |
Also Published As
Publication number | Publication date |
---|---|
UY23961A1 (es) | 1995-11-09 |
PL312579A1 (en) | 1996-04-29 |
ES2081257B1 (es) | 1996-07-16 |
CN1128490A (zh) | 1996-08-07 |
EP0719503A1 (en) | 1996-07-03 |
MX9600174A (es) | 1998-11-29 |
ZA953795B (en) | 1996-10-24 |
US5685710A (en) | 1997-11-11 |
BR9506224A (pt) | 1997-09-30 |
ES2081257A1 (es) | 1996-02-16 |
BG100281A (en) | 1996-09-30 |
PH31496A (en) | 1998-11-03 |
CA2164421A1 (en) | 1995-11-23 |
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