CN102048234A - Tobacco leaf weighing and curing method - Google Patents
Tobacco leaf weighing and curing method Download PDFInfo
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- CN102048234A CN102048234A CN 201010569350 CN201010569350A CN102048234A CN 102048234 A CN102048234 A CN 102048234A CN 201010569350 CN201010569350 CN 201010569350 CN 201010569350 A CN201010569350 A CN 201010569350A CN 102048234 A CN102048234 A CN 102048234A
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Abstract
The invention relates to a tobacco leaf weighing and curing method, and belongs to the technical field of cured tobacco modulation. The method comprises the following steps that: in the tobacco leaf curing process, the lightened weight is the quantity of vaporized moisture of tobacco leaves; the moisture content of the specific tobacco leaves is measured by adopting an oven drying method, and the result is used as the moisture content standard of similar tobacco leaves; the total moisture content of the tobacco leaves of a furnace is calculated by using the moisture content standard of the tobacco leaves; the internal moisture content (percent) of the tobacco leaves is calculated by using a formula and compared with a curing method index; the water loss rate (percent per hour) of the tobacco leaves is calculated by using a formula and compared with a curing method index; the relative humidity inside a curing barn, outside the tobacco leaves and in the air is obtained by measuring dry bulb temperature and wet bulb temperature and querying a Relative Moisture Query Table of a Curing Barn known by the technical personnel of the same field through temperature and humidity probes of the intensive curing barn; and the operating method and the parameters of the intensive curing barn are in the prior art. The invention formulates the tobacco leaf weighing and curing method in accordance with tobacco leaf curing water loss rules and mathematical statistical rules, wherein the method is innovation and development of the traditional curing method.
Description
Technical field:
The present invention relates to a kind of tobacco leaf weighing baking method, belong to flue-cured tobacco modulation technique field.
Background technology:
Flue-cured tobacco is introduced a fine variety, is planted China, and nearly 100 years, diversified form was experienced in the reform of baking method.Such as: two stage bakings, multistage baking, " two long one is short " baking, syllogic baking, traditional flue-curing barn baking, intensive baking room baking, or the like; In the specific period of history, under specific economic base condition, combine with concrete barn type, produced different content, multi-form baking method.
With regard to the world, in the cured tobacco production practice in hundreds of years, baking method is a feast for the eyes.Such as: the steady wet bulb of multi-ladder baking, Zimbabwe of the low temperature and low humidity baking of the former Soviet Union, Japan rises the baking of dry bulb, the baking of Brazilian decreasing temperature and increasing humidity prolongation cured leaf phase; Be to take the course of its own, each has something to recommend him.
Baking method both domestic and external is the progress of baking of flue-cured tobacco cause, has established solid material base.Make a general survey of these baking methods,, all pay attention to especially, also sum up the baking judgement of famous " anhydrous not flavescence, anhydrous not bad cigarette " the moisture in the tobacco flue-curing process.
The moisture of tobacco leaf in bake process relates to two contents: 1. barn inside, tobacco leaf outside, and water loading of the air is represented with relative air humidity; 2. tobacco leaf interior tissue water content is represented with percetage by weight.With regard to the importance of tobacco flue-curing process, the water content of tobacco leaf interior tissue, to tobacco flue-curing physiological and biochemical procedure performance decisive role, the decomposition and inversion of many macromolecular compounds all relies on the Free water of tobacco tissue inside, participates in its metabolic process.Barn inside, tobacco leaf outside, water loading of the air, to the tobacco flue-curing physiological and biochemical procedure, performance indirectly-acting or booster action.
For a long time, the moisture index of baking method does not obtain specifically implementing accurately, is exactly one " wet-bulb temperature "." wet-bulb temperature " is not equal to " humidity ", also is not equal to barn inside, tobacco leaf outside, airborne relative humidity; " wet-bulb temperature " has certain correlation with air moisture content, but also relates to a plurality of variable factors such as blast, wind speed, so use very inaccurate.As for the moisture of tobacco leaf interior tissue,, just never used as the baking index.With regard to its reason, be not that people negate the importance of tobacco leaf interior tissue moisture, but people cannot accurately measure the actual water content in the tobacco leaf in the baking of flue-cured tobacco practice.Like this, for hundreds of years, just have no talent in the practice of tobacco flue-curing both at home and abroad and adopt this important indicator of tobacco leaf interior tissue water content.
The present invention is on the basis of national intensive baking room technical specification, increase intensive baking room cigarette-filling house weighbridge meausring apparatus, in the tobacco flue-curing process, use tobacco leaf interior tissue water content and barn inside, tobacco leaf outside, the relative humidity of air is as the baking method of baking process index; By literature search, do not see the open report identical both at home and abroad with the present invention.
Summary of the invention:
The objective of the invention is to overcome the deficiency of existing flue-cured tobacco modulation technique, a kind of tobacco leaf weighing baking method is provided.
The present invention uses tobacco leaf interior tissue water content, relative air humidity, as the baking of flue-cured tobacco method of tobacco flue-curing process index on the basis of the intensive baking room of setting up the omnidistance Weighing system of tobacco flue-curing.
The formation of the intensive baking room of the omnidistance Weighing system of tobacco flue-curing: on the basis of national intensive baking room technical specification, claim body to be carried on sensor by the cigarette unwheeling track U shaped steel that places intensive baking room cigarette-filling house downward 1.3 places of base frame, by the transmission signal cable, be summarized in terminal box, join by transmission signal cable and weight display again.That is: set up a tableland platform scale, the weighing of tobacco flue-curing overall process in existing intensive baking room cigarette-filling house bottom.
Concrete steps of the present invention are as follows:
A. in the tobacco flue-curing process, the weight number that alleviates is exactly the moisture quantity that the tobacco leaf evaporation is scattered and disappeared;
B. the tobacco leaf of every year, certain cigarette district, certain kind, a part, its water content adopt baking box oven drying method in time to measure, and the data of measuring are as the water content standard of similar ecological environment same breed, same area tobacco leaf;
C. the tobacco leaf water content standard that obtains with the b step calculates the total water content of 1 stove tobacco leaf;
D. calculate tobacco leaf interior moisture content (%) with formula
Tobacco leaf interior moisture content (%)=[the moisture quantity (kg) that evaporation is scattered and disappeared in the tobacco flue-curing process that total water content (the kg)-a step of institute's flue-cured tobacco that the c step obtains obtains] total weight * 100% of ÷ institute flue-cured tobacco;
Compare with above-mentioned tobacco leaf interior moisture content that calculates and baking method index, be higher than conventional baking method index, barn heats up; Be lower than the baking method index, barn keeps constant temperature;
E. calculate tobacco leaf dehydrating speed (%/h) with formula
The bake process time (h) of tobacco leaf dehydrating speed (%/h)=[(the tobacco leaf interior moisture content (%) in the tobacco leaf interior moisture content (%) in a last stage-next one stage] ÷ experience;
Compare with above-mentioned tobacco leaf dehydrating speed that calculates and baking method index, be higher than the baking method index, barn keeps constant temperature; Be lower than the baking method index, barn heats up;
F. barn inside, tobacco leaf outside, airborne relative humidity is measured dry-bulb temperature, wet-bulb temperature by the humiture probe of intensive baking room, and inquiry same domain technical staff known " barn relative humidity question blank " obtains;
Relative air humidity and baking method index with above-mentioned inquiry compare, and are higher than the baking method index, the barn ventilation dewetting; Be lower than the baking method index, barn stops ventilation dewetting;
The method of operating and the parameter of the intensive baking room outside g. above-mentioned are prior art.
The present invention as baking process index, has formulated the tobacco leaf weighing baking method that meets tobacco flue-curing dehydration rule and mathematical statistics rule with tobacco leaf interior tissue water content, dehydrating speed, relative air humidity, is the innovation and the development of traditional baking method.
The specific embodiment:
One. on the basis of national intensive baking room technical specification, claim body to be carried on sensor by the cigarette unwheeling track U shaped steel that places intensive baking room cigarette-filling house downward 1.3 places of base frame, by the transmission signal cable, be summarized in terminal box, join by transmission signal cable and weight display again.That is: set up a tableland platform scale, the weighing of tobacco flue-curing overall process in existing intensive baking room cigarette-filling house bottom.
The parameter of each parts of weighing apparatus for baking, dock parameter with national bulk curing barn technical specification as follows:
1. structure member:
A, scale body, the cigarette unwheeling track U of intensive baking room cigarette-filling house shaped steel.With 6mm U shaped steel, length 7.9m * 2 piece; 2.6m * 2; Do rectangularity and claim body.
B, sensor, 2.5T, quantity 4 covers, stability is strong.
C, weight display, XK3190-A9,1 of quantity, the data stabilization of weighing.
D, transmission signal cable, 4 lines, 1 screen, 1 of quantity is by situ configuration.
E, terminal box, anti-surge, 1 of quantity, good waterproof performance.
2. sensor index:
A, rated load, the t of unit, technical indicator: 10,20,25,30,50.
B, sensitivity, the mV/V of unit, technical indicator: 2 ± 0.004.
C, repeatability, the %F.S. of unit, technical indicator: 0.02,0.03.
D, hysteresis, the %F.S. of unit, technical indicator: ± 0.02, ± 0.03.
E, non-linear, the %F.S. of unit, technical indicator: ± 0.02, ± 0.03.
F, creep, the %F.S. of unit, technical indicator: 30min.
G, creep recover the %F.S. of unit, technical indicator: 30min.
H, output at zero point, the %F.S. of unit, technical indicator: ± 1.
I, zero temperature coefficient, the %F.S. of unit, technical indicator: 10 ℃, ± 0.02.
J, specified output temperature coefficient, the %F.S. of unit, technical indicator: 10 ℃.
K, input resistance, the Ω of unit, technical indicator: 770～830.
L, output resistance, the Ω of unit, technical indicator: 697～706.
M, insulaion resistance, the M Ω of unit, technical indicator: 〉=5000.
N, confession bridge voltage, the V of unit, technical indicator: 10～15 (DC/AC).
O, temperature compensation range, unit ℃, technical indicator :-20～+ 50.
P, serviceability temperature scope, unit ℃, technical indicator :-30～+ 70.
Q, permission overload, the %F.S. of unit, technical indicator: 150.
R, extreme overload, the %F.S. of unit, technical indicator: 400.
S, secure side are carried, the %F.S. of unit, technical indicator: 150.
T, degree of protection, IP68.
3. weight display parameter:
A, intrinsic resolution, technical indicator: 1/1000,000.
B, A/D conversion ratio, unit/second, technical indicator: 10.
C, sensitivity, unit microvolt/scale division value, technical indicator: 0.3.
D, accuracy class, the e of unit, technical indicator: OIML, 10000.
E, zero temperature coefficient, the PPM/ of unit ℃, technical indicator: 6.
F, serviceability temperature scope, unit ℃, technical indicator :-10～40.
G, relative humidity, technical indicator: 8%～100%
H, power supply, the V of unit, technical indicator: 220 (15%～+ 10%); The HZ of unit, technical indicator: 49～61.
I, power, the W of unit, technical indicator :≤15.
J, interface pattern, string, LPT.
K, output pattern, output can receive peripheral hardware ASC II character continuously.
4. terminal box parameter:
Terminal box, temperature coefficient＜10PPM/ ℃ precision resistance and potentiometer are installed anti-Surge Protector, prevent thunder and lightning; Shell adopts stainless steel.
5. dock parameter with national bulk curing barn technical specification:
A, at downward 1.3 places of distance barn base frame, building U shaped steel claims body.
B, title face size 2.6m * 7.9m, cigarette-filling house, gap, all around, each 0.05m.
Cigarette unwheeling in C, the national bulk curing barn technical specification of employing is as hanging the cigarette device.
D, weighbridge load 10T compile smoke density 7～10kg/ pole, every stove dress flue-cured tobacco quantity limits 600 poles.
Two. carry out tobacco flue-curing according to summary of the invention a to g step in the air-flow ascending manner of routine or air-flow descending manner intensive baking room, it is as follows specifically to toast operating technology:
1. the changing yellow stage of preserving moisture
A, on fire after, with the inner dehydrating speed of the tobacco leaf of average 0.5%/h, be reduced to 90% from 100%; Relative air humidity, with the air dehydrating speed of average 0.5%/h, natural air relative humidity is reduced to 85% in the barn; Stablize this result phase, roasting arriving till quick dehydration layer tobacco leaf blade tip part flavescence 6～8cm.
B, with the inner dehydrating speed of the tobacco leaf of average 0.25%/h, be reduced to 85% from 90%; Relative air humidity, the air dehydrating speed with average 0.25%/h is reduced to 80% from 85%; Stablize this result phase, roasting reach the blue veins pornographic movie to quick dehydration layer tobacco leaf till.
2. wilting phase of hydrofuge
With the inner dehydrating speed of the tobacco leaf of average 0.6%/h, be reduced to 70% from 85%; Relative air humidity, the air dehydrating speed with average 0.6%/h drops to 67% from 80%; Stablize this result phase, roasting to quick dehydration layer tobacco leaf bill crimping, the little tube of beating; Slowly dehydration layer tobacco leaf reaches till the blue veins pornographic movie.
3. dewater the cured leaf phase
With the inner dehydrating speed of the tobacco leaf of average 0.7%/h, be reduced to 35% from 70%; Relative air humidity, the air dehydrating speed with average 0.7%/h drops to 30% from 67%; Stablize this result phase, bake and play tube greatly, slow dehydration layer tobacco leaf bill crimping, little beating till the tube to quick dehydration layer tobacco leaf.
4. steady drying muscle stage
A, with the inner dehydrating speed of the tobacco leaf of average 0.80%/h, be reduced to 25% from 35%; Relative air humidity, the air dehydrating speed with average 0.80%/h drops to 20% from 30%; Stablize this result phase, roasting to full stove tobacco leaf master pulse drying 1/2～2/3, till the leave dual sides color and luster is approaching.
B, again with the inner dehydrating speed of the tobacco leaf of average 0.50%/h, be reduced to 10% from 25%; Relative air humidity, the air dehydrating speed with average 0.50%/h drops to 10% from 20%; Stablize this result phase, roasting when dry, cease fire to full stove tobacco leaf master pulse 95%.
Illustrate:
The quick dehydration layer of air-flow ascending manner barn refers to cigarette-filling house's bottom; Slowly the dehydration layer refers to cigarette-filling house's top layer.
The quick dehydration layer of air-flow descending manner barn refers to cigarette-filling house's top layer; Slowly the dehydration layer refers to cigarette-filling house's bottom.
In the test of Yunnan Province's Yuxi Hongta District, demonstration, the baking result is: tobacco leaf color is golden yellow, orange, and oil content is more with said method for the inventor, and not roasting bad tobacco leaf occurs; Better-than-average tobacco leaf ratio 97%; The expert is to the smoking result of tobacco leaf: fragrance matter is purer, and perfume quantity is more sufficient, and flue gas concentration is comparatively full, abundant, and excitant is less, and strength is moderate, and assorted gas is lighter, and mouthfeel is fair, and use value is higher.
Claims (1)
1. tobacco leaf weighing baking method is characterized in that the step of tobacco leaf weighing baking method is as follows:
A. in the tobacco flue-curing process, the weight number that alleviates is exactly the moisture quantity that the tobacco leaf evaporation is scattered and disappeared;
B. the tobacco leaf of every year, certain cigarette district, certain kind, a part, its water content adopt baking box oven drying method in time to measure, and the result is as the water content standard of similar ecological environment same breed, same area tobacco leaf;
C. the tobacco leaf water content standard that obtains with the b step calculates the total water content of 1 stove tobacco leaf;
D. calculate tobacco leaf interior moisture content (%) with formula
Tobacco leaf interior moisture content (%)=[the moisture quantity (kg) that evaporation is scattered and disappeared in the tobacco flue-curing process that total water content (the kg)-a step of institute's flue-cured tobacco that the c step obtains obtains] total weight * 100% of ÷ institute flue-cured tobacco;
Compare with above-mentioned tobacco leaf interior moisture content that calculates and baking method index, be higher than conventional baking method index, barn heats up; Be lower than the baking method index, barn keeps constant temperature;
E. calculate tobacco leaf dehydrating speed (%/h) with formula
The bake process time (h) of tobacco leaf dehydrating speed (%/h)=[(the tobacco leaf interior moisture content (%) in the tobacco leaf interior moisture content (%) in a last stage-next one stage] ÷ experience;
Compare with above-mentioned tobacco leaf dehydrating speed that calculates and baking method index, be higher than the baking method index, barn keeps constant temperature; Be lower than the baking method index, barn heats up;
F. barn inside, tobacco leaf outside, airborne relative humidity is measured dry-bulb temperature, wet-bulb temperature by the humiture probe of intensive baking room, and inquiry same domain technical staff known " barn relative humidity question blank " obtains;
Relative air humidity and baking method index with above-mentioned inquiry compare, and are higher than the baking method index, the barn ventilation dewetting; Be lower than the baking method index, barn stops ventilation dewetting;
The method of operating and the same prior art of parameter of the intensive baking room outside g. above-mentioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010569350 CN102048234A (en) | 2010-12-02 | 2010-12-02 | Tobacco leaf weighing and curing method |
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| CN 201010569350 CN102048234A (en) | 2010-12-02 | 2010-12-02 | Tobacco leaf weighing and curing method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283432A (en) * | 2011-07-16 | 2011-12-21 | 江西省烟草公司赣州市公司 | Method for accurately controlling flue-curing time of tobacco leaves in bulk curing barn |
| CN103558115A (en) * | 2013-11-01 | 2014-02-05 | 江苏中烟工业有限责任公司 | Method for measuring content of free water in tobacco and tobacco product |
| CN104489891A (en) * | 2014-11-21 | 2015-04-08 | 云南省烟草农业科学研究院 | Baking method for reducing surface dusting of KRK26 upper portion tobacco leaves |
| CN104872809A (en) * | 2015-04-02 | 2015-09-02 | 四川省烟草公司泸州市公司 | Leaf temperature-based curing method of loose leaves |
| CN106723265A (en) * | 2016-11-29 | 2017-05-31 | 中国烟草总公司广东省公司 | A kind of baking method of flue-cured tobacco cultivars NC89 tobacco leaves |
| CN107655785A (en) * | 2017-09-28 | 2018-02-02 | 贵州省烟草公司贵阳市公司 | A kind of method of the first flue-cured tobacco water content detection rate of raising |
| CN108036847A (en) * | 2017-11-09 | 2018-05-15 | 浙江省海洋水产研究所 | Suitable for electronic scale of the fish with drying device and drying method of weighing |
| CN109164009A (en) * | 2018-11-13 | 2019-01-08 | 云南农业大学 | A kind of tobacco flue-curing real time on-line monitoring record system |
| CN112674379A (en) * | 2020-12-09 | 2021-04-20 | 云南省烟草公司曲靖市公司 | Tobacco leaf baking method based on temperature and humidity integrated detection |
| CN113331459A (en) * | 2021-07-09 | 2021-09-03 | 中国农业科学院烟草研究所(中国烟草总公司青州烟草研究所) | Intelligent tobacco leaf baking control method |
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| GB1415180A (en) * | 1971-12-31 | 1975-11-26 | Hauni Werke Koerber & Co Kg | Method of and apparatus for assessing the moisture of tobacco or the like |
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| GB1415180A (en) * | 1971-12-31 | 1975-11-26 | Hauni Werke Koerber & Co Kg | Method of and apparatus for assessing the moisture of tobacco or the like |
| US4788989A (en) * | 1984-06-21 | 1988-12-06 | Japan Tobacco, Inc. | Process for the temperature control of a drying apparatus for tobacco leaves |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102283432A (en) * | 2011-07-16 | 2011-12-21 | 江西省烟草公司赣州市公司 | Method for accurately controlling flue-curing time of tobacco leaves in bulk curing barn |
| CN102283432B (en) * | 2011-07-16 | 2013-07-24 | 江西省烟草公司赣州市公司 | Method for accurately controlling flue-curing time of tobacco leaves in bulk curing barn |
| CN103558115A (en) * | 2013-11-01 | 2014-02-05 | 江苏中烟工业有限责任公司 | Method for measuring content of free water in tobacco and tobacco product |
| CN104489891A (en) * | 2014-11-21 | 2015-04-08 | 云南省烟草农业科学研究院 | Baking method for reducing surface dusting of KRK26 upper portion tobacco leaves |
| CN104489891B (en) * | 2014-11-21 | 2016-08-24 | 云南省烟草农业科学研究院 | A kind of baking method reducing KRK26 upper tobacco leaf dust |
| CN104872809A (en) * | 2015-04-02 | 2015-09-02 | 四川省烟草公司泸州市公司 | Leaf temperature-based curing method of loose leaves |
| CN106723265A (en) * | 2016-11-29 | 2017-05-31 | 中国烟草总公司广东省公司 | A kind of baking method of flue-cured tobacco cultivars NC89 tobacco leaves |
| CN107655785A (en) * | 2017-09-28 | 2018-02-02 | 贵州省烟草公司贵阳市公司 | A kind of method of the first flue-cured tobacco water content detection rate of raising |
| CN108036847A (en) * | 2017-11-09 | 2018-05-15 | 浙江省海洋水产研究所 | Suitable for electronic scale of the fish with drying device and drying method of weighing |
| CN109164009A (en) * | 2018-11-13 | 2019-01-08 | 云南农业大学 | A kind of tobacco flue-curing real time on-line monitoring record system |
| CN112674379A (en) * | 2020-12-09 | 2021-04-20 | 云南省烟草公司曲靖市公司 | Tobacco leaf baking method based on temperature and humidity integrated detection |
| CN113331459A (en) * | 2021-07-09 | 2021-09-03 | 中国农业科学院烟草研究所(中国烟草总公司青州烟草研究所) | Intelligent tobacco leaf baking control method |
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Application publication date: 20110511 |