CN104366686A - Special tobacco curing method used for tobacco clamp packing mode in bulk curing barn - Google Patents
Special tobacco curing method used for tobacco clamp packing mode in bulk curing barn Download PDFInfo
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- CN104366686A CN104366686A CN201410652635.XA CN201410652635A CN104366686A CN 104366686 A CN104366686 A CN 104366686A CN 201410652635 A CN201410652635 A CN 201410652635A CN 104366686 A CN104366686 A CN 104366686A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
Abstract
The invention belongs to the technical field of tobacco curing, and particularly relates to a special tobacco curing method used for a tobacco clamp packing mode in a bulk curing barn. The special tobacco curing method mainly includes a yellowing stage, a quick color fixing stage and a stem drying stage, wherein the yellowing stage comprises a moisture maintenance yellowing stage, a medium-moisture yellowing stage and a moisture eliminating yellowing stage; the quick color fixing stage comprises two temperature rising stages and a temperature stabilizing and color fixing stage. Process parameters in all stages of the curing process are made clear, indexes are clear, operations are easy and convenient, the difficult problems that tobacco leaves cannot become yellow sufficiently in a current production process and the color fixing process cannot be accurately controlled are solved, the technical difficulty of curing is further reduced and the method is convenient to master, use and widely popularize.
Description
Technical field
The invention belongs to tobacco flue-curing technical field, be specifically related to a kind of special flue-cured tobacco method clamping cigarette mode for bulk curing barn cigarette.
Background technology
In Chinese national economy, the status of tobacco is very important, and in many areas, tobacco is all an important sources of fiscal revenues.In leaf tobacco production process, kind and cultivation technique are the bases determining fresh cigarette quality, and other restricted factor is also more, especially environmental factor.Baking is the final tache in leaf tobacco production, is to be affected by human factors maximum link in leaf tobacco production, because of but the critical stage of leaf tobacco production.
Along with the fast development of modern tobacco agriculture, the tobacco planting of scale has expedited the emergence of the appearance of bulk curing barn, limits by barn quantity, a kind of tobacco loading method that can mate with this mode of production be modern tobacco agriculture develop institute prerequisite.And due to the restriction of tobacco leaves property and domestic leaf tobacco production level, large case baking can not extensive use.Therefore, loose leaf baking and cigarette press from both sides and have been baked into first-selection, and wherein to clamp cigarette mode more welcome for cigarette.Cigarette folder has certain advantage as a kind of dress cigarette mode newly of China's bulk curing barn, is worth research further, improves and application.
Summary of the invention
For the problems referred to above, the invention provides a kind of special flue-cured tobacco method clamping cigarette mode for bulk curing barn cigarette, conscientiously can solve turn yellow insufficient, fixation process of the tobacco leaf that exists in existing production process and hold a not accurate enough difficult problem, reduce further baking technology difficulty, be convenient to grasp application and extensively promote.
The present invention is achieved through the following technical solutions:
Design a kind of special flue-cured tobacco method clamping cigarette mode for bulk curing barn cigarette, comprise the following steps:
(1) moisturizing changing yellow stage: cigarette is clipped on barn, force to close moistureproof window, then lighting a fire is warming up to 35 ~ 36 DEG C (dry-bulb temperatures) with the heating rate of 1 DEG C/h, steady temperature 18 ~ 26h, yellow to 5 one-tenth, cryosphere tobacco leaf; Be as the criterion with power 2.2KW No. 7 standard fan, first setting rotation speed of fan after igniting is 1400 ~ 1500r/min, continues 2 ~ 3h, then speed governing to 950 ~ 1000r/min keeping;
(2) wet changing yellow stage in: with the heating rate of 0.25 DEG C/h, dry-bulb temperature is risen to 38 DEG C, meanwhile, wet-bulb temperature is stabilized in 35 ~ 36 DEG C, steady temperature 8 ~ 16h, yellow to 8 ~ 9 one-tenth, cryosphere tobacco leaf; Rotation speed of fan is kept to be 950 ~ 1000r/min in this step;
(3) hydrofuge changing yellow stage: dry-bulb temperature is risen to 42 DEG C with the heating rate of 0.25 DEG C/h, meanwhile, control wet-bulb temperature at 33 ~ 34 DEG C, steady temperature 8 ~ 18h, bleaches shinny to cigarette muscle master pulse; Maintaining rotation speed of fan in this step is 1400 ~ 1500r/min;
The present invention's research shows, at the yellowing stage of tobacco flue-curing, the physiology and chemistry rate of change that tobacco leaf experiences reaches extreme value, now, suitable temperature and humidity is very crucial, and above-mentioned epidemic disaster control measure (as heating rate, hydrofuge time, hydrofuge amount, air quantity etc.) can make the activity of enzyme in tobacco leaf be improved significantly, and then impel the biochemical reactions that fierceness occurs in tobacco leaf, the material such as starch, protein affecting quality in tobacco leaf is decomposed, be converted into small-molecule substance, thus greatly improve quality of tobacco;
(4) quick fixation stage: dry-bulb temperature is risen to 46 DEG C with the heating rate of 0.5 DEG C/h, meanwhile, controls wet-bulb temperature at 34 ~ 35 DEG C; With the heating rate of 1 DEG C/h, dry-bulb temperature is risen to 54 DEG C again, meanwhile, control wet-bulb temperature at 35 ~ 36 DEG C, steady temperature 20 ~ 24h, to the flavescence of cigarette muscle, blade drying; Rotation speed of fan is kept to be 1400 ~ 1500r/min in this step;
(5) drying muscle stage: dry-bulb temperature is risen to 68 DEG C with the heating rate of 1 DEG C/h, and to control wet-bulb temperature be 37 ~ 39 DEG C, steady Wen Zhiquan room tobacco leaf is absolutely dry; Rotation speed of fan is kept to be 1400 ~ 1500r/min in this step.
For the special flue-cured tobacco method of the above-mentioned cigarette mode that clamps for bulk curing barn cigarette, the density in step (1), cigarette being clipped on barn is 55 ~ 65Kg/m
3.
The medium-term and long-term experimental study of the present invention shows, to fill fresh smoke density for 55 ~ 65Kg/m
3exterior quality, the physical characteristic of process cured tobacco leaf are better, and intrinsic chemical composition is comparatively coordinated, and baking cost is lower.To study unlike, the present invention with traditional understanding and find that bulk curing barn suitably increases smoke filling density and can increase cured tobacco leaf carotenoid degradation product, the western cypress alkanes of class, maillard reaction product, neophytadiene and aroma substance total amount thereof to a certain extent.
positive beneficial effect of the present invention is:
The present invention is accurate, and cigarette presss from both sides the concrete technology parameter of each process in bake process, simplify baking flow process, decrease the workload of bake process, especially in the fixation stage, before its quick fixation process effectively solves, cigarette presss from both sides the problem of fixation difficulty in mode bake process, and enforcement more easy to operate and popularization.
Accompanying drawing explanation
Fig. 1 is the temperature control chart of the special flue-cured tobacco method of the present invention.
specific implementation method
Below in conjunction with specific embodiment, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
embodiment 1
First to operate cigarette and clamp cigarette process on operating desk, ensure with folder, with barn quality of tobacco unanimously, guarantee in dress cigarette process that tobacco leaf is evacuated and be evenly distributed on cigarette folder, leaf base aligns.Effective folder cigarette width is 8cm, often presss from both sides the heavy 12.5kg of cigarette, every room dress smoke which 4500kg.After being linked into barn, carry out following special flue-cured tobacco step successively:
(1) moisturizing changing yellow stage: cigarette is clipped on barn, density is 60Kg/m
3, force to close moistureproof window, then lighting a fire is warming up to 35 ~ 36 DEG C (dry-bulb temperatures) with the heating rate of 1 DEG C/h, steady temperature 20h, yellow to 5 one-tenth, cryosphere tobacco leaf; This step first sets blower fan (No. 7 standard fan, power 2.2KW) rotating speed is after firing 1450r/min, continues 2h, then speed governing keeps to 960r/min;
(2) wet changing yellow stage in: with the heating rate of 0.25 DEG C/h, dry-bulb temperature is risen to 38 DEG C, meanwhile, wet-bulb temperature is stabilized in 35 ~ 36 DEG C, steady temperature 16h, yellow to 8 ~ 9 one-tenth, cryosphere tobacco leaf; Rotation speed of fan is kept to be 960r/min in this step;
(3) hydrofuge changing yellow stage: dry-bulb temperature is risen to 42 DEG C with the heating rate of 0.25 DEG C/h, meanwhile, control wet-bulb temperature at 33 ~ 34 DEG C, steady temperature 12h, bleaches shinny to cigarette muscle master pulse; Maintaining rotation speed of fan in this step is 1450r/min;
(4) quick fixation stage: dry-bulb temperature is risen to 46 DEG C with the heating rate of 0.5 DEG C/h, meanwhile, controls wet-bulb temperature at 34 ~ 35 DEG C; With the heating rate of 1 DEG C/h, dry-bulb temperature is risen to 54 DEG C again, meanwhile, control wet-bulb temperature at 35 ~ 36 DEG C, steady temperature 21h, to the flavescence of cigarette muscle, blade drying; Rotation speed of fan is kept to be 1450r/min in this step;
(5) drying muscle stage: dry-bulb temperature is risen to 68 DEG C with the heating rate of 1 DEG C/h, and to control wet-bulb temperature be 37 ~ 39 DEG C, steady Wen Zhiquan room tobacco leaf is absolutely dry; Rotation speed of fan is kept to be 1450r/min in this step.
The concrete Temperature and Humidity Control process of each step is see Fig. 1.
Design the conventional baking process contrast test of above-mentioned flue-cured tobacco method and locality in October, 2013 at Xuchang City Xiangcheng County Wang Luo cigarette station, and divide tobacco leaf degree by 42 grades of GBs, and add up each grade proportion, result of the test is as table 1.
Table 1 Xiangcheng County in 2013 bakes blue or green cigarette and tobacco leaf degree ratio
| Process | Blue smoke rate (%) | First-class cigarette ratio (%) | Upper medium grade cigarette ratio (%) |
| Local common process | 3.23 | 47.12 | 88.17 |
| Embodiment 1 | 1.22 | 54.43 | 93.52 |
Table 1 shows, the present invention's special flue-cured tobacco method effectively reduces roasting blue or green cigarette ratio, improves the presentation quality of cured tobacco leaf, adds first-class cigarette and upper medium grade cigarette ratio.
embodiment 2
First to operate cigarette and clamp cigarette process on operating desk, ensure with folder, with barn quality of tobacco unanimously, guarantee in dress cigarette process that tobacco leaf is evacuated and be evenly distributed on cigarette folder, leaf base aligns.Effective folder cigarette width is 8cm, often presss from both sides the heavy 13.5kg of cigarette, every room dress smoke which 4700kg.After being linked into barn, carry out following special flue-cured tobacco step successively:
(1) moisturizing changing yellow stage: cigarette is clipped on barn, density is 55Kg/m
3, force to close moistureproof window, then lighting a fire is warming up to 35 ~ 36 DEG C (dry-bulb temperatures) with the heating rate of 1 DEG C/h, steady temperature 22h, yellow to 5 one-tenth, cryosphere tobacco leaf; This step first sets blower fan (No. 7 standard fan, power 2.2KW) rotating speed is after firing 1450r/min, continues 2h, then speed governing keeps to 960r/min;
(2) wet changing yellow stage in: with the heating rate of 0.25 DEG C/h, dry-bulb temperature is risen to 38 DEG C, meanwhile, wet-bulb temperature is stabilized in 35 ~ 36 DEG C, steady temperature 12h, yellow to 8 ~ 9 one-tenth, cryosphere tobacco leaf; Rotation speed of fan is kept to be 960r/min in this step;
(3) hydrofuge changing yellow stage: dry-bulb temperature is risen to 42 DEG C with the heating rate of 0.25 DEG C/h, meanwhile, control wet-bulb temperature at 33 ~ 34 DEG C, steady temperature 12h, bleaches shinny to cigarette muscle master pulse; Maintaining rotation speed of fan in this step is 1450r/min;
(4) quick fixation stage: dry-bulb temperature is risen to 46 DEG C with the heating rate of 0.5 DEG C/h, meanwhile, controls wet-bulb temperature at 34 ~ 35 DEG C; With the heating rate of 1 DEG C/h, dry-bulb temperature is risen to 54 DEG C again, meanwhile, control wet-bulb temperature at 35 ~ 36 DEG C, steady temperature 22h, to the flavescence of cigarette muscle, blade drying; Rotation speed of fan is kept to be 1450r/min in this step;
(5) drying muscle stage: dry-bulb temperature is risen to 68 DEG C with the heating rate of 1 DEG C/h, and to control wet-bulb temperature be 37 ~ 39 DEG C, steady Wen Zhiquan room tobacco leaf is absolutely dry; Rotation speed of fan is kept to be 1450r/min in this step.
In October, 2013, the conventional baking process contrast test of above-mentioned flue-cured tobacco method and locality was designed at old Cao's cigarette station in Xuchang County, and divided tobacco leaf degree by 42 grades of GBs, and added up each grade proportion, and result of the test is as table 2.
Blue or green cigarette and tobacco leaf degree ratio are baked in table 2 Xuchang County in 2013
| Process | Blue smoke rate (%) | First-class cigarette ratio (%) | Upper medium grade cigarette ratio (%) |
| Local common process | 4.19 | 46.34 | 82.24 |
| Embodiment 2 | 1.26 | 55.47 | 90.28 |
Table 2 shows, the present invention's special flue-cured tobacco method effectively reduces roasting blue or green cigarette ratio, improves the presentation quality of cured tobacco leaf, adds first-class cigarette and upper medium grade cigarette ratio.
embodiment 3
First to operate cigarette and clamp cigarette process on operating desk, ensure with folder, with barn quality of tobacco unanimously, guarantee in dress cigarette process that tobacco leaf is evacuated and be evenly distributed on cigarette folder, leaf base aligns.Effective folder cigarette width is 8cm, often presss from both sides the heavy 15kg of cigarette, every room dress smoke which 5000kg.After being linked into barn, carry out following special flue-cured tobacco step successively:
(1) moisturizing changing yellow stage: cigarette is clipped on barn, density is 55Kg/m
3, force to close moistureproof window, then lighting a fire is warming up to 35 ~ 36 DEG C (dry-bulb temperatures) with the heating rate of 1 DEG C/h, steady temperature 20h, yellow to 5 one-tenth, cryosphere tobacco leaf; This step first sets blower fan (No. 7 standard fan, power 2.2KW) rotating speed is after firing 1450r/min, continues 2.5h, then speed governing keeps to 960r/min;
(2) wet changing yellow stage in: with the heating rate of 0.25 DEG C/h, dry-bulb temperature is risen to 38 DEG C, meanwhile, wet-bulb temperature is stabilized in 35 ~ 36 DEG C, steady temperature 15h, yellow to 8 ~ 9 one-tenth, cryosphere tobacco leaf; Rotation speed of fan is kept to be 960r/min in this step;
(3) hydrofuge changing yellow stage: dry-bulb temperature is risen to 42 DEG C with the heating rate of 0.25 DEG C/h, meanwhile, control wet-bulb temperature at 33 ~ 34 DEG C, steady temperature 12h, bleaches shinny to cigarette muscle master pulse; Maintaining rotation speed of fan in this step is 1450r/min;
(4) quick fixation stage: dry-bulb temperature is risen to 46 DEG C with the heating rate of 0.5 DEG C/h, meanwhile, controls wet-bulb temperature at 34 ~ 35 DEG C; With the heating rate of 1 DEG C/h, dry-bulb temperature is risen to 54 DEG C again, meanwhile, control wet-bulb temperature at 35 ~ 36 DEG C, steady temperature 24h, to the flavescence of cigarette muscle, blade drying; Rotation speed of fan is kept to be 1450r/min in this step;
(5) drying muscle stage: dry-bulb temperature is risen to 68 DEG C with the heating rate of 1 DEG C/h, and to control wet-bulb temperature be 37 ~ 39 DEG C, steady Wen Zhiquan room tobacco leaf is absolutely dry; Rotation speed of fan is kept to be 1450r/min in this step.
Design the conventional baking process contrast test of above-mentioned flue-cured tobacco method and locality in October, 2013 at Luohe City great Liu cigarette station, and divide tobacco leaf degree by 42 grades of GBs, and add up each grade proportion, result of the test is as table 3.
Blue or green cigarette and tobacco leaf degree ratio are baked in table 3 Luohe in 2013
| Process | Blue smoke rate (%) | First-class cigarette ratio (%) | Upper medium grade cigarette ratio (%) |
| Local common process | 4.78 | 45.38 | 87.09 |
| Embodiment 1 | 1.68 | 53.19 | 91.02 |
Table 3 shows, the present invention's special flue-cured tobacco method effectively reduces roasting blue or green cigarette ratio, improves the presentation quality of cured tobacco leaf, adds first-class cigarette and upper medium grade cigarette ratio.
embodiment 4
First to operate cigarette and clamp cigarette process on operating desk, ensure with folder, with barn quality of tobacco unanimously, guarantee in dress cigarette process that tobacco leaf is evacuated and be evenly distributed on cigarette folder, leaf base aligns.Effective folder cigarette width is 8cm, often presss from both sides the heavy 16kg of cigarette, every room dress smoke which 5200kg.After being linked into barn, carry out following special flue-cured tobacco step successively:
(1) moisturizing changing yellow stage: cigarette is clipped on barn, density is 55Kg/m
3, force to close moistureproof window, then lighting a fire is warming up to 35 ~ 36 DEG C (dry-bulb temperatures) with the heating rate of 1 DEG C/h, steady temperature 22h, yellow to 5 one-tenth, cryosphere tobacco leaf; This step first sets blower fan (No. 7 standard fan, power 2.2KW) rotating speed is after firing 1450r/min, continues 3h, then speed governing keeps to 960r/min;
(2) wet changing yellow stage in: with the heating rate of 0.25 DEG C/h, dry-bulb temperature is risen to 38 DEG C, meanwhile, wet-bulb temperature is stabilized in 35 ~ 36 DEG C, steady temperature 12h, yellow to 8 ~ 9 one-tenth, cryosphere tobacco leaf; Rotation speed of fan is kept to be 960r/min in this step;
(3) hydrofuge changing yellow stage: dry-bulb temperature is risen to 42 DEG C with the heating rate of 0.25 DEG C/h, meanwhile, control wet-bulb temperature at 33 ~ 34 DEG C, steady temperature 16h, bleaches shinny to cigarette muscle master pulse; Maintaining rotation speed of fan in this step is 1450r/min;
(4) quick fixation stage: dry-bulb temperature is risen to 46 DEG C with the heating rate of 0.5 DEG C/h, meanwhile, controls wet-bulb temperature at 34 ~ 35 DEG C; With the heating rate of 1 DEG C/h, dry-bulb temperature is risen to 54 DEG C again, meanwhile, control wet-bulb temperature at 35 ~ 36 DEG C, steady temperature 24h, to the flavescence of cigarette muscle, blade drying; Rotation speed of fan is kept to be 1450r/min in this step;
(5) drying muscle stage: dry-bulb temperature is risen to 68 DEG C with the heating rate of 1 DEG C/h, and to control wet-bulb temperature be 37 ~ 39 DEG C, steady Wen Zhiquan room tobacco leaf is absolutely dry; Rotation speed of fan is kept to be 1450r/min in this step.
Design the conventional baking process contrast test of above-mentioned flue-cured tobacco method and locality 2013 days in Jiaxian County, table mountain, and divide tobacco leaf degree by 42 grades of GBs, and add up each grade proportion, result of the test is as table 4.
Blue or green cigarette and tobacco leaf degree ratio are baked in table 4 Jiaxian County in 2013
| Process | Blue smoke rate (%) | First-class cigarette ratio (%) | Upper medium grade cigarette ratio (%) |
| Local common process | 3.27 | 46.09 | 89.63 |
| Embodiment 4 | 0.98 | 53.19 | 94.02 |
Table 4 shows, the present invention's special flue-cured tobacco method effectively reduces roasting blue or green cigarette ratio, improves the presentation quality of cured tobacco leaf, adds first-class cigarette and upper medium grade cigarette ratio.
Claims (2)
1. clamp a special flue-cured tobacco method for cigarette mode for bulk curing barn cigarette, it is characterized in that, comprise the following steps:
(1) moisturizing changing yellow stage: cigarette is clipped on barn, force to close moistureproof window, then lighting a fire is warming up to 35 ~ 36 DEG C with the heating rate of 1 DEG C/h, steady temperature 18 ~ 26h, yellow to 5 one-tenth, cryosphere tobacco leaf; Be as the criterion with power 2.2KW No. 7 standard fan, first setting rotation speed of fan after igniting is 1400 ~ 1500r/min, continues 2 ~ 3h, then speed governing to 950 ~ 1000r/min keeping;
(2) wet changing yellow stage in: with the heating rate of 0.25 DEG C/h, dry-bulb temperature is risen to 38 DEG C, meanwhile, wet-bulb temperature is stabilized in 35 ~ 36 DEG C, steady temperature 8 ~ 16h, yellow to 8 ~ 9 one-tenth, cryosphere tobacco leaf; Rotation speed of fan is kept to be 950 ~ 1000/min in this step;
(3) hydrofuge changing yellow stage: dry-bulb temperature is risen to 42 DEG C with the heating rate of 0.25 DEG C/h, meanwhile, control wet-bulb temperature at 33 ~ 34 DEG C, steady temperature 8 ~ 18h, bleaches shinny to cigarette muscle master pulse; Maintaining rotation speed of fan in this step is 1400 ~ 1500r/min;
(4) quick fixation stage: dry-bulb temperature is risen to 46 DEG C with the heating rate of 0.5 DEG C/h, meanwhile, controls wet-bulb temperature at 34 ~ 35 DEG C; With the heating rate of 1 DEG C/h, dry-bulb temperature is risen to 54 DEG C again, meanwhile, control wet-bulb temperature at 35 ~ 36 DEG C, steady temperature 20 ~ 24h, to the flavescence of cigarette muscle, blade drying; Rotation speed of fan is kept to be 1400 ~ 1500r/min in this step;
(5) drying muscle stage: dry-bulb temperature is risen to 68 DEG C with the heating rate of 1 DEG C/h, and to control wet-bulb temperature be 37 ~ 39 DEG C, steady Wen Zhiquan room tobacco leaf is absolutely dry; Rotation speed of fan is kept to be 1400 ~ 1500r/min in this step.
2. the special flue-cured tobacco method clamping cigarette mode for bulk curing barn cigarette according to claim 1, is characterized in that: the density in step (1), cigarette being clipped on barn is 55 ~ 65Kg/m
3.
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Cited By (4)
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| 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 |
| CN105146706A (en) * | 2015-09-30 | 2015-12-16 | 河南农业大学 | Bulk curing method for reducing surface dusting of K326 upper leaves |
| CN105768176A (en) * | 2016-03-17 | 2016-07-20 | 中国农业科学院烟草研究所 | Green eliminating method for flue-cured tobacco leaves with green branch veins |
| CN107348552A (en) * | 2017-07-19 | 2017-11-17 | 河南省农业科学院烟草研究所 | A kind of special flue-cured tobacco method for heat pump bulk curing barn |
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| CN102488310A (en) * | 2011-12-08 | 2012-06-13 | 中国农业科学院烟草研究所 | Three-section and five-step bulk curing process for flue-cured tobacco |
| CN103564635A (en) * | 2013-11-07 | 2014-02-12 | 河南农业大学 | Baking process of comb-type tobacco clamps |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105146706A (en) * | 2015-09-30 | 2015-12-16 | 河南农业大学 | Bulk curing method for reducing surface dusting of K326 upper leaves |
| CN105768176A (en) * | 2016-03-17 | 2016-07-20 | 中国农业科学院烟草研究所 | Green eliminating method for flue-cured tobacco leaves with green branch veins |
| CN107348552A (en) * | 2017-07-19 | 2017-11-17 | 河南省农业科学院烟草研究所 | A kind of special flue-cured tobacco method for heat pump bulk curing barn |
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|---|---|
| CN104366686B (en) | 2016-04-13 |
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