CN109497603A - A kind of bulk curing barn of the dry muscle baking of tobacco leaf low temperature - Google Patents

A kind of bulk curing barn of the dry muscle baking of tobacco leaf low temperature Download PDF

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Publication number
CN109497603A
CN109497603A CN201811453600.8A CN201811453600A CN109497603A CN 109497603 A CN109497603 A CN 109497603A CN 201811453600 A CN201811453600 A CN 201811453600A CN 109497603 A CN109497603 A CN 109497603A
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CN
China
Prior art keywords
dry
bulb
relative humidity
temperature
wet
Prior art date
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Pending
Application number
CN201811453600.8A
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Chinese (zh)
Inventor
飞鸿
李天福
张晓海
杨雪彪
赵高坤
沈燕金
童文杰
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Yunnan Academy of Tobacco Agricultural Sciences
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Yunnan Academy of Tobacco Agricultural Sciences
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Application filed by Yunnan Academy of Tobacco Agricultural Sciences filed Critical Yunnan Academy of Tobacco Agricultural Sciences
Priority to CN201811453600.8A priority Critical patent/CN109497603A/en
Publication of CN109497603A publication Critical patent/CN109497603A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00Preparing tobacco in the factory
    • A24B3/10Roasting or cooling tobacco

Abstract

The invention discloses a kind of tobacco curing barns, the bulk curing barn of especially a kind of dry muscle baking of low temperature, including bulk curing barn, the wet and dry bulb temperature that the drying muscle stage after reducing by 53~54 DEG C of fixation stages terminates is realized using interior dehumidification device, maintains relative humidity Rh caused by wet-bulb temperature corresponding to the dry-bulb temperature of drying muscle stage and relative humidity Rh corresponding to the drying muscle stage wet and dry bulb temperature of conventional baking process equal or slightly lower.Frequency controlling fan can also be used to realize that the relative humidity Rh of the drying muscle stage and the routine relative humidity Rh of drying muscle stage of baking process are equal or slightly lower with the method that cold wind shutter open degree cooperates.Finally ensure all to dry tobacco leaf within the time of process stipulation.Dry-bulb temperature of the present invention due to reducing drying muscle stage, advantageously reduces energy consumption, meanwhile, not only tangerine color ratio example significantly improves the tobacco leaf of baking, and color more beautiful, eats gas fragrance and significantly improves.

Description

A kind of bulk curing barn of the dry muscle baking of tobacco leaf low temperature
Technical field
The present invention relates to a kind of tobacco flue-curing house, especially a kind of flue-cured tobacco drying muscle stage uses the dense tobacco flue-curing house of low-temperature bake, belongs to Tobacco modulation technique field.
Technical background
A seed type of the flue-cured tobacco (including fire-cured tobacco and fire tube indirect heating flue-cured tobacco) as tobacco, has there is centuries History.Before more than 180 years, people start after finding that the purer perfume of tabacco fragrance that bakes of fire tube indirect heating is pleasant, people couple Probing into for baking of flue-cured tobacco the relevant technologies just never stopped.Tobacco-leaf bulk curing barn is from 2008 in China's Large scale construction Since, the hundreds of thousands of seats of bulk curing barn that the whole nation is built up and comes into operation have become the key facility of tobacco leaf modulation baking, especially It, which is State Tobacco Monopoly Bureau in 2009 with domestic cigarettes, does comprehensive (2009) No. 418 texts " office, State Tobacco Monopoly Bureau is about printing and distributing Since the notice of " curing equipment bid and purchase management method and bulk curing barn technical specification (tentative) revised edition " " is promulgated and enforced, Tobacco-leaf bulk curing barn has received good effect according to normative construction, receives will be widely welcomed for each side.Bulk curing barn includes adding Hot cell and cigarette-filling house, two rooms are separated by walls have ears, are equipped with circulation air path in the top and bottom of partition wall, logical using forcing Wind can be divided into air-flow ascending manner and two kinds of airflow descending type compression according to the traffic direction of hot wind.
Baking process with baking facility often complement each other, it is interdependent each other mutually deposit, this has also been achieved as the prior art Baking of flue-cured tobacco technique and can be realized the baking facility or barn of the baking process.
Now, global cured tobacco production and researcher, the overwhelming majority have got used to " using centainly since room temperature Time, and certain ladder is set, temperature is gradually raised to 68 DEG C or so, meanwhile, with the rising of temperature and the passage of time, The relative air humidity for being baked tobacco leaf water content and periphery is gradually decreased, whole bakings are finally completed " a kind of in this way Roaster Skill and process curve.Make a general survey of this kind of baking process and curve, although they can because of various reasons (such as: country variant, no With area, Different climate cigarette district, different cultivars or even different parts etc.) influence and difference, but also it is not difficult to find out that this The similarity of baking process and curve is very high a bit, and the process curve tendency height of all of which is consistent.
With at present compared with there is the method for flue-curing tobacco leaves curve of representative as shown in table 1, the temperature in close relations with tobacco flue-curing (dry-bulb temperature, wet-bulb temperature) and time, the two mutual cooperation complete entire baking process.We can be in baking process Find out, the raising of passage and temperature at any time, baking process sequence press flavescence (dry-bulb temperature: firing temperature~38 DEG C, it is wet Ball temperature: 35~36 DEG C), fixation (dry-bulb temperature: 40 DEG C~53 DEG C, wet-bulb temperature: 37~38 DEG C), dry muscle (dry-bulb temperature: 55 DEG C~68 DEG C, wet-bulb temperature: 40~41 DEG C) three periods are successively progressive, 68 DEG C are finally rested on until whole tobacco leaves (packet Include mesophyll and vein) it is dry, that is, terminate tobacco flue-curing.The temperature range in above three period and each period is almost the whole world Tobacco flue-curing is intended to the process of experience.
The conventional method for flue-curing tobacco leaves curve table of table 1
In table: Rh- relative humidity, the h- time, DEG C-Celsius temperature
It is numerous studies have shown that tobacco leaf enters barn after, the conversion and the two of the variation of appearance color and inherent substance The fixation of (color, substance), two periods (changing yellow stage, fixation stage) have just been completed in front substantially.And 55 DEG C~68 DEG C phases Between high temperature mainly promote the moisture in tobacco leaf master pulse to overflow, during this core of baking process be by raising dry bulb Temperature (dry-bulb temperature is gradually increased to 55 DEG C~68 DEG C from 53 DEG C~54 DEG C of the fixation end of term), fine tuning wet-bulb temperature (wet-bulb temperature 40~41 DEG C are gradually increased to from 37 DEG C~38 DEG C of the fixation end of term), pass through the fortune of a large amount of heat supplies and ventilation aggravation tobacco leaf internal moisture It moves and the relative humidity in barn between smoke stratification is promoted to be greatly lowered, prolonged high temperature and lower humidity is maintained to promote Tobacco leaf is finally able to drying.
From it is found that fire tube heat supply can be with baking tobacco leaves after, above-mentioned baking process is just by vast cured tobacco production Person and researcher are received, this is that the gravity-flow ventilation barn based on early stage is formed by technique.However, as forced ventilation is roasting Room and the mechanical appearance that dehumidifies in recent years, it is this to divulge information by high temperature with a large amount of to have reached the finally dried baking process of tobacco leaf It is no longer unique approach.
Especially, the dry muscle baking of this baking high temperature has following two aspects clearly disadvantageous:
1) dry muscle low efficiency, energy consumption are high, are kept for 68 DEG C of dry-bulb temperature or more be up to tens hours, at this moment due to barn Interior relative humidity is relatively low, and dry-bulb temperature be higher by compared with ambient temperature (temperature, such as 25 DEG C) it is more, It is obvious that the bring temperature difference is entered the wind when hydrofuge, in order not to reduce dry-bulb temperature, it is necessary to which a large amount of heat supplies lead to energy consumption height;
2) easily there is the reduction of tangerine color ratio example, color intensification phenomenon, reduce the ratio of first-class cigarette.
Summary of the invention
For the existing problem of the dry muscle baking of above-mentioned high temperature, the invention proposes a kind of dry muscle bakings of tobacco leaf low temperature Bulk curing barn, in the hope of solving high energy consumption issues existing for flue-cured tobacco drying muscle stage and improving first-class cigarette ratio.
The technical solution of the present invention is as follows:
A kind of bulk curing barn of the dry muscle baking of tobacco leaf low temperature, including bulk curing barn, baking process include changing yellow stage, determine Color phase and drying muscle stage, it is characterised in that: reduce by 53~54 DEG C of fixation stages terminate after drying muscle stage wet and dry bulb temperature, maintain The drying muscle stage dry and wet of relative humidity Rh caused by wet-bulb temperature corresponding to the dry-bulb temperature of drying muscle stage and conventional baking process Relative humidity Rh corresponding to ball temperature is equal or slightly lower.
Further, the relative humidity Rh of the drying muscle stage and the dry muscle of conventional baking process are realized using interior dehumidification device The relative humidity Rh of phase is equal or slightly lower.Also the method that frequency controlling fan and the cooperation of cold wind shutter open degree can be used Realize that the relative humidity Rh and the routine relative humidity Rh of drying muscle stage of baking process of the drying muscle stage are equal or slightly lower.
The interior dehumidification device can be device or chemical de-moisture device with dehumidification by condensation function.
The device with dehumidification by condensation function can be mounted in inside cigarette-filling house or in return air inlet air duct Heat pump, the heat-absorbent surface of the heat pump are met to hot wind.
Detailed description of the invention
Fig. 1 is the structure front view of the bulk curing barn of the dry muscle baking of low temperature of the invention;
Fig. 2 is the structure left figure of the bulk curing barn of the dry muscle baking of low temperature of the invention;
Fig. 3 is the structure top view of the bulk curing barn of the dry muscle baking of low temperature of the invention.
In figure: 12-heating rooms;7-cigarette-filling house;8-return air inlet air ducts;9-frequency controlling fans;10-return air air inlet Mixing chamber;11-cold wind shutters;13-hot-air mouth air ducts;14- moistureproof window;Dehumidification device in 15-.
Specific embodiment
It elaborates below to the present invention.
The dry muscle method for flue-curing tobacco leaves curve table of 2 low temperature of table
In table: Rh- relative humidity, the h- time, DEG C-Celsius temperature
As it can be seen from table 1 53 DEG C~54 DEG C from the fixation end of term of the drying muscle stage dry-bulb temperature that generallys use of the prior art Be gradually increased to 55 DEG C~68 DEG C, wet-bulb temperature from 37 DEG C~38 DEG C of the fixation end of term be gradually increased to 40~41 DEG C, pass through a large amount of heat supplies And in barn separate ventilation (divulging information between atmosphere outside in barn cigarette-filling house) aggravation tobacco leaf internal moisture movement and Promote the relative humidity in barn between smoke stratification to be greatly lowered, prolonged high temperature and lower humidity is maintained to promote tobacco leaf most It is able to drying eventually.
The prior art thinks, in Tobacco Leaf Curing, the conversion and the two of the variation of appearance color and inherent substance The fixation of (color, substance), two periods (changing yellow stage, fixation stage) have just been completed in front substantially, are largely caused in flue-cured tobacco After fragrant basic substance is formed (after 53~55 DEG C of fixation stages), the present invention, which utilizes, " stops the promotion of dry-bulb temperature, according to hydrofuge Speed needs to reduce relative humidity " method enter drying muscle stage baking.
In conjunction with table 2, specific scheme are as follows:
1) changing yellow stage, the fixation stage work of conventional baking process (Access point was delivered or shielded technique) are not changed Under the premise of skill, after executing conventional baking process to fixation stage, the final goal dry-bulb temperature into drying muscle stage is not needed It is fixed to usual in the past 68 DEG C, as long as along or slightly above fixation stage maximum temperature, it is appropriate to carry out to the control temperature of wet bulb Setting, then (dehumidify in such as heat pump dehumidifier condensing or other objects by appropriate stronger ventilation amount or by dehumidifying is mechanical Reason, chemical de-moisture mode) method, be effectively reduced by by the relative humidity in barn, maintain the dry-bulb temperature of drying muscle stage Phase corresponding to drying muscle stage wet and dry bulb temperature of the relative humidity Rh caused by corresponding wet-bulb temperature with conventional baking process It is equal to humidity Rh or slightly lower, finally ensure all to dry tobacco leaf within the time of process stipulation.
2) it on the basis of 1), maintains the dry-bulb temperature of drying muscle stage to can be 55 DEG C and is done to used in conventional baking process Any one temperature between muscle phase minimum dry-bulb temperature (not including).
3) on the basis of 2), the dry-bulb temperature of drying muscle stage is maintained to can be any one temperature between 55 DEG C to 64 DEG C Degree.
1) or 3) 4) on the basis of, the setting of wet-bulb temperature corresponding to the dry-bulb temperature of drying muscle stage is maintained, should be met The requirement of corresponding relative humidity Rh, relative humidity Rh reduction be equal to or slightly lower than terminate from fixation 30% to 19% and 15% reduces.
5) on the basis of 4), the setting of specific wet and dry bulb and corresponding relative humidity have following combination (but to be not limited to Combine below):
A, 55 DEG C of dry bulb when, wet bulbCorresponding relative humidity
B, 59 DEG C of dry bulb when, wet bulbCorresponding relative humidity
C, 57 DEG C of dry bulb when, wet bulbCorresponding relative humidity
D, 58 DEG C of dry bulb when, wet bulbCorresponding relative humidity
E, 59 DEG C of dry bulb when, wet bulbCorresponding relative humidity
D, 60 DEG C of dry bulb when, wet bulbCorresponding relative humidity
F, 61 DEG C of dry bulb when, wet bulbCorresponding relative humidity
G, 62 DEG C of dry bulb when, wet bulbCorresponding relative humidity
H, 63 DEG C of dry bulb when, wet bulbCorresponding relative humidity
I, 64 DEG C of dry bulb when, wet bulbCorresponding relative humidity
In conjunction with Fig. 1, Fig. 2 and Fig. 3, the dry muscle of low temperature of the invention toasts bulk curing barn, including bulk curing barn 1, Roaster Skill includes changing yellow stage, fixation stage and drying muscle stage, it is characterised in that: the drying muscle stage after reducing by 53~54 DEG C of fixation stages and terminating Wet and dry bulb temperature maintains relative humidity Rh caused by wet-bulb temperature corresponding to the dry-bulb temperature of drying muscle stage and conventional baking Relative humidity Rh corresponding to the drying muscle stage wet and dry bulb temperature of technique is equal or slightly lower.
Interior dehumidification device 15 can be used and realize the relative humidity Rh of the drying muscle stage and the drying muscle stage of conventional baking process Relative humidity Rh it is equal or slightly lower.
The dry muscle of low temperature of the invention toasts bulk curing barn, and frequency controlling fan 9 can be used and cold wind shutter 11 is opened The method of degree cooperation realizes that the relative humidity Rh of the drying muscle stage is equal with the routine relative humidity Rh of drying muscle stage of baking process Or it is slightly lower.
The dry muscle of low temperature of the invention toasts bulk curing barn, and the interior dehumidification device 15 can be with dehumidification by condensation function The device or physical-chemical dehumidification device of energy.
The dry muscle of low temperature of the invention toasts bulk curing barn, and the device with dehumidification by condensation function can be installation Heat pump inside cigarette-filling house or in hot wind air -return duct 13, the heat-absorbent surface of the heat pump are met to hot wind.
The dry muscle of low temperature of the invention toasts bulk curing barn, the physical-chemical dehumidification device can be mounted in hesitate it is wet Desiccant wheel on window 14.
Bulk curing barn is toasted using the dry muscle of the dry muscle low temperature of low temperature of the invention, due to reducing the dry-bulb temperature of drying muscle stage, Reduce enter the wind-hesitate it is wet during barn internal-external temperature difference, reduce the required heating energy consumption of the steady temperature of drying muscle stage, thus obviously Advantageously reduce energy consumption.
Meanwhile theoretically, the loss late for baking red cigarette due to 68 DEG C and temperatures above can be substantially reduced.
The present invention is through practical baking verifying, and not only tangerine color ratio example significantly improves the tobacco leaf of baking, and color more beautiful, mistake More apparent bitter taste and burr sense are substantially reduced in going to smoke panel test, and other beneficial notes, concentration etc. are without being decreased obviously.
The promotion and change of cured tobacco production technology are always with the development of cured tobacco production and associated transverse technology , along with this development, baking process technology related with baking of flue-cured tobacco modulation technique and auxiliary facility are also improved And change.Long-term cured tobacco production is it was verified that the needs in market and variation and the innovation of production technology are complemented each other forever , not unalterable technology and needs.
A kind of dry muscle of the dry muscle low temperature of flue-cured tobacco low temperature proposed by the invention toasts bulk curing barn, not only there is higher Art value, and there is stronger practical value.It has annotated baking of flue-cured tobacco and baking process not from the angle of the dry muscle of low temperature Well known another side has stronger advanced and primacy, and the improvement and promotion to next step baking facility have relatively strong Leading property, especially for the research and propulsion of current general concerned heat-pump dehumidification baking and fan frequency control baking There is extremely important meaning.

Claims (10)

1. a kind of dry muscle of tobacco leaf low temperature toasts bulk curing barn, including bulk curing barn (1), baking process include changing yellow stage, fixation Phase and drying muscle stage, it is characterised in that: reduce by 53~54 DEG C of fixation stages terminate after drying muscle stage wet and dry bulb temperature, maintain dry muscle The drying muscle stage wet and dry bulb temperature of relative humidity Rh caused by wet-bulb temperature corresponding to the dry-bulb temperature of phase and conventional baking process The corresponding relative humidity Rh of degree is equal or slightly lower.
2. the dry muscle of low temperature according to claim 1 toasts bulk curing barn, it is characterised in that: the maintenance drying muscle stage is done Ball temperature can be 55 DEG C to not higher than any one temperature between the minimum dry-bulb temperature of drying muscle stage used in conventional baking process Degree.
3. the dry muscle of low temperature according to claim 2 toasts bulk curing barn, it is characterised in that: the dry bulb for maintaining drying muscle stage Temperature can be any one temperature between 55 DEG C to 64 DEG C.
4. the dry muscle of low temperature according to claim 1 or 3 toasts bulk curing barn, it is characterised in that: the maintenance drying muscle stage Wet-bulb temperature corresponding to dry-bulb temperature, the reduction that should meet corresponding relative humidity Rh is equal to or slightly lower than to be terminated from fixation 30% to 19% and 15% reduce.
5. the dry muscle of low temperature according to claim 4 toasts bulk curing barn, it is characterised in that: the wet and dry bulb temperature and Corresponding relative humidity Rh is using one of following any combination:
A, 55 DEG C of dry bulb when, wet bulbCorresponding relative humidity
B, 59 DEG C of dry bulb when, wet bulbCorresponding relative humidity
C, 57 DEG C of dry bulb when, wet bulbCorresponding relative humidity
D, 58 DEG C of dry bulb when, wet bulbCorresponding relative humidity
E, 59 DEG C of dry bulb when, wet bulbCorresponding relative humidity
D, 60 DEG C of dry bulb when, wet bulbCorresponding relative humidity
F, 61 DEG C of dry bulb when, wet bulbCorresponding relative humidity
G, 62 DEG C of dry bulb when, wet bulbCorresponding relative humidity
H, 63 DEG C of dry bulb when, wet bulbCorresponding relative humidity
I, 64 DEG C of dry bulb when, wet bulbCorresponding relative humidity
6. the dry muscle of any low temperature according to claims 1 to 3 toasts bulk curing barn, it is characterised in that: use interior dehumidifying Device (15) realizes that the relative humidity Rh of the drying muscle stage is equal with the routine relative humidity Rh of drying muscle stage of baking process or omits It is low.
7. the dry muscle of any low temperature according to claims 1 to 3 toasts bulk curing barn, it is characterised in that: use frequency conversion tune The method of fast blower (9) and the cooperation of cold wind shutter (11) open degree realizes that the relative humidity Rh of the drying muscle stage and routine are toasted The relative humidity Rh of the drying muscle stage of technique is equal or slightly lower.
8. the dry muscle of low temperature according to claim 6 toasts bulk curing barn, it is characterised in that: the interior dehumidification device (15) It can be device or physical-chemical dehumidification device with dehumidification by condensation function.
9. the dry muscle of any low temperature according to claim 8 toasts bulk curing barn, it is characterised in that: described has condensation The device of dehumidification function can be mounted in the heat pump inside cigarette-filling house or in hot wind air -return duct (13), the heat absorption of the heat pump It meets to hot wind in face.
10. the dry muscle of any low temperature according to claim 8 toasts bulk curing barn, it is characterised in that: the physics-change The desiccant wheel hesitated on wet window (14) can be mounted in by learning dehumidification device.
CN201811453600.8A 2018-11-30 2018-11-30 A kind of bulk curing barn of the dry muscle baking of tobacco leaf low temperature Pending CN109497603A (en)

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CN201811453600.8A CN109497603A (en) 2018-11-30 2018-11-30 A kind of bulk curing barn of the dry muscle baking of tobacco leaf low temperature

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Application Number Priority Date Filing Date Title
CN201811453600.8A CN109497603A (en) 2018-11-30 2018-11-30 A kind of bulk curing barn of the dry muscle baking of tobacco leaf low temperature

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CN109497603A true CN109497603A (en) 2019-03-22

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102440430A (en) * 2011-10-19 2012-05-09 广东中烟工业有限责任公司 Bulk curing barn and tobacco flue-curing method using same
CN105105308A (en) * 2015-08-14 2015-12-02 贵州省烟草科学研究院 Two-stage type bulk curing process for flue-cured tobaccos
CN105146705A (en) * 2015-09-18 2015-12-16 云南省烟草公司大理州公司 Method for baking tobacco leaves of honghua dajinyuan (Chinese character) variety by use of closed tobacco curing barn
CN107594607A (en) * 2017-11-17 2018-01-19 云南省烟草农业科学研究院 A kind of wet flue-cured tobacco dense drying method of steady temperature drop

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102440430A (en) * 2011-10-19 2012-05-09 广东中烟工业有限责任公司 Bulk curing barn and tobacco flue-curing method using same
CN105105308A (en) * 2015-08-14 2015-12-02 贵州省烟草科学研究院 Two-stage type bulk curing process for flue-cured tobaccos
CN105146705A (en) * 2015-09-18 2015-12-16 云南省烟草公司大理州公司 Method for baking tobacco leaves of honghua dajinyuan (Chinese character) variety by use of closed tobacco curing barn
CN107594607A (en) * 2017-11-17 2018-01-19 云南省烟草农业科学研究院 A kind of wet flue-cured tobacco dense drying method of steady temperature drop

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