CN107836744A - A kind of steady wet flue-cured tobacco dense drying method heated - Google Patents

A kind of steady wet flue-cured tobacco dense drying method heated Download PDF

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Publication number
CN107836744A
CN107836744A CN201711146242.1A CN201711146242A CN107836744A CN 107836744 A CN107836744 A CN 107836744A CN 201711146242 A CN201711146242 A CN 201711146242A CN 107836744 A CN107836744 A CN 107836744A
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China
Prior art keywords
wet
bulb temperature
barn
dry
tobacco leaf
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CN201711146242.1A
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Chinese (zh)
Inventor
王亚辉
黄维
邓春
赵高坤
崔国民
邹聪明
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Yunnan Academy of Tobacco Agricultural Sciences
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Yunnan Academy of Tobacco Agricultural Sciences
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Priority to CN201711146242.1A priority Critical patent/CN107836744A/en
Publication of CN107836744A publication Critical patent/CN107836744A/en
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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 steady wet flue-cured tobacco dense drying method heated, described flue-cured tobacco dense drying method includes steady wet heating yellowing stage, steady wet heating drying stage.The suitable wet-bulb temperature of stability maintenance tobacco leaf flavescence of the present invention, fixation, dry muscle, according to tobacco flue-curing target call, the raising dry-bulb temperature of sublevel ladder, accomplish stability maintenance, microlitre, realize that tobacco leaf turns yellow with dehydration coordinate, dry and dock with flavouring, reduce roasting bad rate, improve baking quality, the method of the present invention is simple, easy controlled operation.It is of the present invention applied widely, the tobacco leaf of any kind in the improved seeds of popularization and application in current cured tobacco production can be toasted.

Description

A kind of steady wet flue-cured tobacco dense drying method heated
Technical field
The invention belongs to tobacco flue-curing technical field, and in particular to a kind of steady wet flue-cured tobacco dense drying method heated.
Background technology
Dense drying also turns into modern tobacco agriculture and modernizes an important symbol, but tobacco leaf leaves in baking process Advanced baking technology, only according to advanced hardware facility, tobacco leaf is that baking is bad.Therefore, people are by substantial amounts of baking Experiment and production checking, grope to have drawn the methods of three stages toasted, four stages toasted, five stages toasted by research, to solve Certainly the problem of Tobacco Leaf Curing, but tobacco leaf it is roasting after dust, roasting the problem of of baking bad cigarette such as withered, burned still largely exist, dry Roasting loss is high.Mainly current baking method of tracing it to its cause using tobacco leaf fixation is leading, is opened around tobacco leaf fixation Exhibition research, show that baking technology technique is more harsh to required epidemic disaster control, is not easy to grasp, it is careless slightly, will It is higher relatively low to there is temperature shakiness, humidity, causes the roasting blue or green, dust of tobacco leaf, when serious, is roasted into withered cigarette etc., causes larger baking Roasting loss.On the other hand, it is necessary to invent a kind of steady wet flue-cured tobacco dense drying method heated for solving problem above.
The content of the invention
It is an object of the invention to provide a kind of steady wet flue-cured tobacco dense drying method heated.
The object of the present invention is achieved like this, including it is steady it is wet heat yellowing stage, it is steady it is wet heat drying stage, specific bag Include following steps:
1)It is surely wet to heat yellowing stage:
A, tobacco leaf is loaded into barn, closed barn, igniting, dry-bulb temperature is raised to 32 DEG C in 2 ~ 3h, then with 1.0 DEG C/h's Programming rate, dry-bulb temperature being raised to 37 ~ 39 DEG C, wet-bulb temperature is adjusted to 34 ~ 36 DEG C, wherein, when barn is airflow descending type compression During bulk curing barn, wet-bulb temperature is adjusted to 35 ~ 36 DEG C, and when barn is air-flow rising-type bulk curing barn, wet-bulb temperature is adjusted to 34 ~ 35 DEG C, epidemic disaster combination is maintained, bakes the flavescence of heat zone blade tip;
B, stability maintenance wet-bulb temperature, adjust firepower, with 1.0 DEG C/h programming rate, dry-bulb temperature be raised to 40 ~ 41 DEG C, maintain temperature, Humidity combination, bake heat zone tobacco leaf flavescence 7-8 into;
C, stability maintenance wet-bulb temperature, adjust firepower, with 1.0 DEG C/h programming rate, dry-bulb temperature be raised to 42 ~ 43 DEG C, maintain temperature, Humidity combination, the complete yellow, dragging article of tobacco leaf mesophyll for baking heat zone hook point;
D, stability maintenance wet-bulb temperature, firepower is adjusted, with 0.5 ~ 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 45 ~ 46 DEG C, dimension Epidemic disaster combination is held, bakes the complete yellow, dragging article of cryosphere tobacco leaf;
2)It is surely wet to heat drying stage:
A, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 55 ~ 56 DEG C, wet-bulb temperature is raised to 37 ~ 38 DEG C, Epidemic disaster combination is maintained, bakes heat zone tobacco leaf master pulse drying more than 1/2;
B, stability maintenance wet-bulb temperature, adjust firepower, with 1.0 DEG C/h programming rate, dry-bulb temperature be raised to 60 ~ 61 DEG C, maintain temperature, Humidity combination, heat zone tobacco leaf master pulse drying is baked more than 2/3;
C, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 ~ 1.5 DEG C/h programming rate, dry-bulb temperature is raised to 64 ~ 65 DEG C, dimension Epidemic disaster combination is held, bakes that heat zone tobacco leaf master pulse is absolutely dry, and cryosphere tobacco leaf master pulse drying is more than 2/3;
D, stability maintenance wet-bulb temperature, adjust firepower, with 1.5 DEG C/h programming rate, dry-bulb temperature be raised to 67 ~ 68 DEG C, maintain temperature, Humidity combination, it is absolutely dry to bake full stove tobacco leaf master pulse, terminates baking.
Compared with prior art, beneficial effects of the present invention:
1st, the present invention is by the flavescence of stability maintenance tobacco leaf, fixation, the suitable wet-bulb temperature of dry muscle, according to tobacco flue-curing target call, sublevel The raising dry-bulb temperature of ladder, accomplish stability maintenance, microlitre, realize that tobacco leaf turns yellow and coordinate with dehydration, dry and dock with flavouring, reduction is baked bad Rate, baking quality is improved, method is simple, easy controlled operation.
2nd, the present invention is leading with the scalding of tobacco leaf, roasting perfume, takes the steady wet method heated, makes tobacco leaf in the process of flavescence Middle dehydration more than 50%, reduces polyphenol oxidase activity, effectively solves during fixation because tobacco leaf water content is high(Changing yellow stage loses Water is less than 50%), polyphenol oxidase activity is strong, and browning reaction easily occurs, and leads the roasting blue or green, dust of tobacco leaf, withered etc. ask is baked when serious Topic, so as to improve baking quality of tobacco.
3rd, it is of the invention it is steady it is wet heat yellowing stage, with 35 ~ 36 DEG C of air-flow down type roasting room stability maintenance wet-bulb temperature or air-flow 34 ~ 35 DEG C of ascending manner barn stability maintenance wet-bulb temperature, be equipped with dry-bulb temperature four times improve stage by stage, realize tobacco flue-curing point respectively Xanthochromia is soft, meat is yellow hooks point, the target of arteries and veins game of shuttlecocks cylinder;The epidemic disaster point of institute's control is tobacco leaf mesophyll, the suitable temperature of offshoot flavescence Degree, while be to solve tobacco leaf flavescence dehydration deficiency, the fast efficient combination of browning reaction;Tobacco leaf fluid loss after flavescence is big, palm fibre Colorization reaction is slow, and it is easy to dry fixation;Solid flavescence basis is established for the drying tobacco flavouring of next stage.
4th, it is of the invention it is steady it is wet heat drying stage, with 37 ~ 38 DEG C of stability maintenance wet-bulb temperature, be equipped with 55 ~ 56 DEG C of dry-bulb temperature, 60 ~ 61 DEG C, 64 ~ 65 DEG C, 67 ~ 68 DEG C of raising stage by stage, tobacco leaf is promoted to increase fragrance conjunction in fixation drying process step by step Fragrance loss is reduced into amount and during dry muscle, improves baking quality, improves quality of tobacco.
5th, wet-bulb temperature control point of the present invention is few, and dry-bulb temperature promotes rise simple, and easily-learned easily mastered is fresh using Mature Tobacco leaf, rational volume smoke filling density and the stable wet-bulb temperature in baking process, the method for controlling 8 dry-bulb temperature points are real Existing tobacco leaf turns yellow to be coordinated with dehydration, and drying matches with flavouring, it is ensured that the raising of baking quality of tobacco.
6th, it is of the present invention applied widely, can be to any one in the improved seeds of popularization and application in current cured tobacco production The tobacco leaf of individual kind is toasted.
7th, the present invention is by steady wet C, D step for heating yellowing stage and the steady wet A for heating drying stage, step B, adopting With high-speed circulating blower fan, accelerate tobacco leaf dehumidifying, raising tobacco leaf fluid loss, ensure that tobacco leaf turns yellow and coordinate with fixation, dry and fragrance Matching;By in the steady wet A for heating yellowing stage, step B and steady wet C, D step for heating drying stage, using circulated at low velocity Blower fan, promote air circulation so that tobacco leaf turns yellow uniformly, and the drying stage later stage, reduces wind speed, can also effectively reduce fragrance Volatilization.
Brief description of the drawings
The epidemic disaster that Fig. 1 is the present invention changes line chart.
Embodiment
With reference to embodiment, the present invention is further illustrated, but the present invention is not any limitation as in any way, Based on present invention teach that any conversion or replacement made, belong to protection scope of the present invention.
The steady wet flue-cured tobacco dense drying method heated of the present invention, including steady wet heat yellowing stage, steady wet heat Drying stage, specifically include following steps:
1)It is surely wet to heat yellowing stage:
A, tobacco leaf is loaded into barn, closed barn, igniting, dry-bulb temperature is raised to 32 DEG C in 2 ~ 3h, then with 1.0 DEG C/h's Programming rate, dry-bulb temperature being raised to 37 ~ 39 DEG C, wet-bulb temperature is adjusted to 34 ~ 36 DEG C, wherein, when barn is airflow descending type compression During bulk curing barn, wet-bulb temperature is adjusted to 35 ~ 36 DEG C, and when barn is air-flow rising-type bulk curing barn, wet-bulb temperature is adjusted to 34 ~ 35 DEG C, epidemic disaster combination is maintained, bakes the flavescence of heat zone blade tip;
B, stability maintenance wet-bulb temperature, adjust firepower, with 1.0 DEG C/h programming rate, dry-bulb temperature be raised to 40 ~ 41 DEG C, maintain temperature, Humidity combination, bake heat zone tobacco leaf flavescence 7-8 into;
C, stability maintenance wet-bulb temperature, adjust firepower, with 1.0 DEG C/h programming rate, dry-bulb temperature be raised to 42 ~ 43 DEG C, maintain temperature, Humidity combination, the complete yellow, dragging article of tobacco leaf mesophyll for baking heat zone hook point;
D, stability maintenance wet-bulb temperature, firepower is adjusted, with 0.5 ~ 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 45 ~ 46 DEG C, dimension Epidemic disaster combination is held, bakes the complete yellow, dragging article of cryosphere tobacco leaf;
2)It is surely wet to heat drying stage:
A, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 55 ~ 56 DEG C, wet-bulb temperature is raised to 37 ~ 38 DEG C, Epidemic disaster combination is maintained, bakes heat zone tobacco leaf master pulse drying more than 1/2;
B, stability maintenance wet-bulb temperature, adjust firepower, with 1.0 DEG C/h programming rate, dry-bulb temperature be raised to 60 ~ 61 DEG C, maintain temperature, Humidity combination, heat zone tobacco leaf master pulse drying is baked more than 2/3;
C, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 ~ 1.5 DEG C/h programming rate, dry-bulb temperature is raised to 64 ~ 65 DEG C, dimension Epidemic disaster combination is held, bakes that heat zone tobacco leaf master pulse is absolutely dry, and cryosphere tobacco leaf master pulse drying is more than 2/3;
D, stability maintenance wet-bulb temperature, adjust firepower, with 1.5 DEG C/h programming rate, dry-bulb temperature be raised to 67 ~ 68 DEG C, maintain temperature, Humidity combination, it is absolutely dry to bake full stove tobacco leaf master pulse, terminates baking.
Described flue-cured tobacco is any kind in the improved seeds of popularization and application in current cured tobacco production.
Described flue-cured tobacco is any of k326, cloud and mist 87, the big gold dollar of safflower, krk26.
Described tobacco leaf is the ripe tobacco leaf in the bottom, middle part and top of cigarette strain.
Step(1)A described in tobacco leaf is loaded into barn is specially to be according to 7 ~ 8kg/ poles, smoke filling density in barn 48~52kg/m3Enter luggage cigarette, dress cigarette principle is that low-temperature region fills 1 ~ 2 pole relative to smoke filling density less, and high-temperature area is relative to dress Smoke density fills 1-2 poles more.
Described high-temperature area is on the region of 1.5 m in exhaust outlet to the barn of airflow descending type compression flue-curing barn or air-flow 1.5 m region in the air inlet of lift-type bulk curing barn to barn, described low-temperature region are airflow descending type compression flue-curing barn In air inlet to barn in the exhaust outlet of 1.5m region or air-flow rising-type bulk curing barn to barn 1.5m region.
Step(1)A described in when barn is air-flow down type roasting room, wet-bulb temperature is adjusted to 36 DEG C, described Air-flow down type roasting room refers to air flow for the bulk curing barn from upper strata to lower floor.
Step(1)A described in when barn is air-flow ascending manner barn, wet-bulb temperature is adjusted to 35 DEG C, described Air-flow ascending manner barn refers to air flow for the bulk curing barn from lower floor to upper strata.
When described barn is four layers of barn, step(1)D described in dry-bulb temperature be raised to 47 ~ 48 DEG C.
Described step(1)A, step B and(2)C, D step in use circulated at low velocity blower fan, described low speed follows The rotating speed of ring blower fan is 960r/min, air quantity 15000m3/ h, total head 170pa.
Described step(1)C, D step and step(2)A, dehumidified using high-speed circulating blower fan in step B, The rotating speed of described high-speed circulating blower fan is 1440r/min, air quantity 22000m3/ h, total head 220pa.
Embodiment 1
1st, k326 kind tobacco leaves are toasted in Qujing;
2nd, bulk curing barn is overhauled, it is ensured that plant equipment normal operation, wall is air tight, and wet temperature sensor works just Often, used bulk curing barn is air-flow rising-type bulk curing barn;
3rd, stove dress bakes a kind;
4th, Temperature Humidity Sensor is hung up:The top layer of one extension barn of wet, temperature sensor, one hang over barn bottom.Temperature-sensitive Head 5cm as little as on blade tip(Surveyed epidemic disaster approximation represents blade tip temperature and the temperature environment residing for blade tip).
5th, dress cigarette requirement is compiled:Compile smoke 7kg/ poles, dress smoke 49kg/m3.Compile even, fill even.Accomplish simultaneously:Low-temperature region Suitably fill dilute(1 pole is filled less), high-temperature area suitably fills close(Fill 1 pole more).
6th, the inventive method is divided into the two-stage:It is steady wet to heat yellowing stage, steady wet heat drying stage.
First stage, the steady wet yellowing stage that heats are divided into four steps.
First step, fill cigarette after, close barn, open circulated at low velocity blower fan, igniting, with 2 hours by dry bulb temperature rise then 32 DEG C, afterwards, with 1 DEG C/h of programming rate, dry-bulb temperature being raised to 38 DEG C, wet-bulb temperature is adjusted to 35 DEG C, stability maintenance temperature, Humidity combination, bake the flavescence of heat zone blade tip;
Second step, when baking the flavescence of heat zone blade tip, firepower is adjusted, dimension determines 35 DEG C of wet-bulb temperature, with 1 DEG C/h Programming rate, dry-bulb temperature is raised to 40 DEG C, the combination of stability maintenance epidemic disaster, bake heat zone tobacco leaf turn yellow 7 into.
Third step, when heat zone tobacco leaf turns yellow 7 into Huang, firepower is adjusted, dimension determines 35 DEG C of wet-bulb temperature, first follows low speed After ring blower fan is converted into high-speed circulating blower fan, then with 1 DEG C/h of programming rate, dry-bulb temperature is raised to 42 DEG C, bakes high temperature Tobacco leaf mesophyll is complete yellow, dragging article hooks point;
Four steps, adjusts firepower, and dimension determines 35 DEG C of wet-bulb temperature, with 1 DEG C/h of programming rate, dry-bulb temperature is raised into 46 DEG C, the combination of stability maintenance epidemic disaster, bake the complete yellow, dragging article of cryosphere tobacco leaf.
Second stage(It is surely wet to heat drying stage)In four steps.
First step, when the full Huang of cryosphere tobacco leaf, dragging article, firepower is adjusted, with 1 DEG C/h of programming rate, by dry bulb Temperature is raised to 56 DEG C, and wet-bulb temperature is raised to 38 DEG C, the combination of stability maintenance epidemic disaster, bakes heat zone tobacco leaf master pulse and dries 1/2 or so;
Second step, when heat zone tobacco leaf master pulse dry 1/2 or so when, adjust firepower, dimension determine 38 DEG C of wet-bulb temperature, with 1 DEG C/it is small When programming rate, dry-bulb temperature is raised to 60 DEG C, the combination of stability maintenance epidemic disaster, baking heat zone tobacco leaf master pulse, to dry 2/3 left It is right;
3rd step, when heat zone tobacco leaf master pulse dries 2/3 or so, dimension determines 38 DEG C of wet-bulb temperature, firepower is tuned up, first by height Fast circulating fan is converted into circulated at low velocity blower fan, then with 1.5 DEG C/h of programming rate, dry-bulb temperature is raised into 65 DEG C, stability maintenance Epidemic disaster combines, and it is absolutely dry to bake heat zone tobacco leaf master pulse, cryosphere tobacco leaf master pulse 2/3 or so;
Four steps, when cryosphere tobacco leaf master pulse 2/3 or so, dimension determines 38 DEG C of wet-bulb temperature, is raised to dry-bulb temperature with 1 hour 67 DEG C, the combination of stability maintenance epidemic disaster, it is absolutely dry to bake full stove tobacco leaf master pulse, terminates baking process.
7th, the target of flavescence, drying of the stability maintenance time of each step to realize tobacco leaf is defined.
The rotating speed of described circulated at low velocity blower fan is 960r/min, air quantity 15000m3/ h, total head 170pa.
The rotating speed of described high-speed circulating blower fan is 1440r/min, air quantity 22000m3/ h, total head 220pa.
Embodiment 2
1st, example:Hongda tobacco leaves are toasted in Kunming;
2nd, bulk curing barn is overhauled, it is ensured that plant equipment normal operation, wall is air tight, and wet temperature sensor works just Often;Used bulk curing barn is air-flow rising-type bulk curing barn;
3rd, stove dress bakes a kind;
4th, Temperature Humidity Sensor is hung up:The top layer of one extension barn of wet, temperature sensor, one hang over barn bottom.Temperature-sensitive Head 10cm as little as on blade tip(Surveyed epidemic disaster approximation represents blade tip temperature and the temperature environment residing for blade tip).
5th, dress cigarette requirement is compiled:Compile smoke 8kg/ poles, dress smoke 48kg/m3.Compile even, fill even.Accomplish simultaneously:Low-temperature region Suitably fill dilute(2 poles are filled less), high-temperature area suitably fills close(Fill 2 poles more).
6th, the inventive method is divided into the two-stage:It is steady wet to heat yellowing stage, steady wet heat drying stage.
First stage, the steady wet yellowing stage that heats are divided into four steps.
First step, after filling cigarette, after igniting, with 2 hours by then 32 DEG C of dry bulb temperature rise, afterwards, with 1 DEG C/h of liter Warm speed, dry-bulb temperature is raised to 38 DEG C, wet-bulb temperature is adjusted to 34 DEG C, the combination of stability maintenance epidemic disaster, bakes heat zone blade tip and fills Divide and turn yellow;
Second step, when baking heat zone blade tip and fully turning yellow, adjust firepower, dimension determines 34 DEG C of wet-bulb temperature, with 1 DEG C/it is small When programming rate, dry-bulb temperature is raised to 40 DEG C, the combination of stability maintenance epidemic disaster, bake heat zone tobacco leaf turn yellow 8 into.
Third step, when heat zone tobacco leaf turn yellow 8 into when, adjust firepower, dimension determine 34 DEG C of wet-bulb temperature, will first circulate low speed After blower fan is converted into high speed, then with 1 DEG C/h of programming rate, dry-bulb temperature is raised to 42 DEG C, bakes the tobacco leaf mesophyll of high temperature Complete yellow, dragging article hooks point;
Four steps, adjusts firepower, and dimension determines 34 DEG C of wet-bulb temperature, with 1 DEG C/h of programming rate, dry-bulb temperature is raised into 48 DEG C, the combination of stability maintenance epidemic disaster, bake the complete yellow, dragging article of cryosphere tobacco leaf.
Second stage(It is surely wet to heat drying stage)In four steps.
First step, when the full Huang of cryosphere tobacco leaf, dragging article, firepower is adjusted, with 1 DEG C/h of programming rate, by dry bulb Temperature is raised to 56 DEG C, and wet-bulb temperature is raised to 37 DEG C, the combination of stability maintenance epidemic disaster, bakes heat zone tobacco leaf master pulse and dries 1/2 or so;
Second step, when heat zone tobacco leaf master pulse dry 1/2 or so when, adjust firepower, dimension determine 37 DEG C of wet-bulb temperature, with 1 DEG C/it is small When programming rate, dry-bulb temperature is raised to 60 DEG C, the combination of stability maintenance epidemic disaster, baking heat zone tobacco leaf master pulse, to dry 2/3 left It is right;
3rd step, when heat zone tobacco leaf master pulse dries 2/3 or so, dimension determines 37 DEG C of wet-bulb temperature, tunes up firepower, will first follow Ring high-speed fan is converted into low speed, then with 1.5 DEG C/h of programming rate, dry-bulb temperature is raised into 65 DEG C, stability maintenance epidemic disaster Combination, it is absolutely dry to bake heat zone tobacco leaf master pulse, cryosphere tobacco leaf master pulse 2/3 or so;
Four steps, when cryosphere tobacco leaf master pulse 2/3 or so, dimension determines 37 DEG C of wet-bulb temperature, is raised to dry-bulb temperature with 1 hour 68 DEG C, the combination of stability maintenance epidemic disaster, it is absolutely dry to bake full stove tobacco leaf master pulse, terminates baking process.
7th, the target of flavescence, drying of the stability maintenance time of each step to realize tobacco leaf is defined.
Embodiment 3
1st, example:The kind tobacco leaf of cloud and mist 87 is toasted in mountain of papers;
2nd, bulk curing barn is overhauled, it is ensured that plant equipment normal operation, wall is air tight, and wet temperature sensor works just Often;Used bulk curing barn is airflow descending type compression flue-curing barn;
3rd, stove dress bakes a kind;
4th, Temperature Humidity Sensor is hung up:The top layer of one extension barn of wet, temperature sensor, one hang over barn bottom.Temperature-sensitive Head 8cm as little as on blade tip(Surveyed epidemic disaster approximation represents blade tip temperature and the temperature environment residing for blade tip).
5th, dress cigarette requirement is compiled:Compile smoke 8kg/ poles, dress smoke 48kg/m3.Compile even, fill even.Accomplish simultaneously:Low-temperature region Suitably fill dilute(2 poles are filled less), high-temperature area suitably fills close(Fill 2 poles more).
6th, the inventive method is divided into the two-stage:It is steady wet to heat yellowing stage, steady wet heat drying stage.
First stage, the steady wet yellowing stage that heats are divided into four steps.
First step, after filling cigarette, after igniting, with 3 hours by then 32 DEG C of dry bulb temperature rise, afterwards, with 1 DEG C/h of liter Warm speed, dry-bulb temperature is raised to 38 DEG C, wet-bulb temperature is adjusted to 36 DEG C, the combination of stability maintenance epidemic disaster, bakes heat zone blade tip and fills Divide and turn yellow;
Second step, when baking heat zone blade tip and fully turning yellow, adjust firepower, dimension determines 36 DEG C of wet-bulb temperature, with 1 DEG C/it is small When programming rate, dry-bulb temperature is raised to 40 DEG C, the combination of stability maintenance epidemic disaster, bakes heat zone tobacco leaf flavescence 7-8 into Huang.
Third step, when heat zone tobacco leaf flavescence 7-8 is into Huang, firepower is adjusted, dimension determines 36 DEG C of wet-bulb temperature, first will circulation After low speed blower fan is converted into high speed, then with 1 DEG C/h of programming rate, dry-bulb temperature is raised to 42 DEG C, bakes the tobacco leaf of high temperature The complete yellow, dragging article of mesophyll hooks point;
Four steps, adjusts firepower, and dimension determines 36 DEG C of wet-bulb temperature, with 1 DEG C/h of programming rate, dry-bulb temperature is raised into 48 DEG C, the combination of stability maintenance epidemic disaster, bake the complete yellow, dragging article of cryosphere tobacco leaf.
Second stage(It is surely wet to heat drying stage)In four steps.
First step, when the full Huang of cryosphere tobacco leaf, dragging article, firepower is adjusted, with 1 DEG C/h of programming rate, by dry bulb Temperature is raised to 56 DEG C, and wet-bulb temperature is raised to 37 DEG C, the combination of stability maintenance epidemic disaster, bakes heat zone tobacco leaf master pulse and dries 1/2 or so;
Second step, when heat zone tobacco leaf master pulse dry 1/2 or so when, adjust firepower, dimension determine 37 DEG C of wet-bulb temperature, with 1 DEG C/it is small When programming rate, dry-bulb temperature is raised to 60 DEG C, the combination of stability maintenance epidemic disaster, baking heat zone tobacco leaf master pulse, to dry 2/3 left It is right;
3rd step, when heat zone tobacco leaf master pulse dries 2/3 or so, dimension determines 37 DEG C of wet-bulb temperature, tunes up firepower, will first follow Ring high-speed fan is converted into low speed, then with 1.5 DEG C/h of programming rate, dry-bulb temperature is raised into 65 DEG C, stability maintenance epidemic disaster Combination, it is absolutely dry to bake heat zone tobacco leaf master pulse, cryosphere tobacco leaf master pulse 2/3 or so;
Four steps, when cryosphere tobacco leaf master pulse 2/3 or so, dimension determines 37 DEG C of wet-bulb temperature, is raised to dry-bulb temperature with 1 hour 68 DEG C, the combination of stability maintenance epidemic disaster, it is absolutely dry to bake full stove tobacco leaf master pulse, terminates baking process.
7th, the target of flavescence, drying of the stability maintenance time of each step to realize tobacco leaf is defined.
Embodiment 4
1st, example:Krk26 kind tobacco leaves are toasted in Kunming;
2nd, bulk curing barn is overhauled, it is ensured that plant equipment normal operation, wall is air tight, and wet temperature sensor works just Often;Used bulk curing barn is airflow descending type compression flue-curing barn;
3rd, stove dress bakes a kind;
4th, Temperature Humidity Sensor is hung up:The top layer of one extension barn of wet, temperature sensor, one hang over barn bottom.Temperature-sensitive Head 5-10cm as little as on blade tip(Surveyed epidemic disaster approximation represents blade tip temperature and the temperature environment residing for blade tip).
5th, dress cigarette requirement is compiled:Compile smoke 7.14kg/ poles, smoke filling density 50kg/m3.Compile even, fill even.Accomplish simultaneously: Low-temperature region suitably fills dilute(1 pole is filled less), high-temperature area suitably fills close(Fill 1 pole more).
A kind of steady wet flue-cured tobacco dense drying method heated, including it is steady it is wet heat yellowing stage, it is steady it is wet heat drying stage, Specifically include following steps:
1)It is surely wet to heat yellowing stage:
A, tobacco leaf is loaded into barn, closed barn, igniting, dry-bulb temperature is raised to 32 DEG C in 2.5h, then with 1.0 DEG C/h's Programming rate, dry-bulb temperature is raised to 39 DEG C, wet-bulb temperature is adjusted to 35 DEG C, maintains epidemic disaster combination, bakes heat zone blade tip Turn yellow;
B, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 41 DEG C, maintained warm, wet Degree combination, bake heat zone tobacco leaf flavescence 7-8 into;
C, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 43 DEG C, maintained warm, wet Degree combination, the complete yellow, dragging article of tobacco leaf mesophyll for baking heat zone hook point;
D, stability maintenance wet-bulb temperature, firepower is adjusted, with 0.5 DEG C/h programming rate, dry-bulb temperature is raised to 46 DEG C, maintained warm, wet Degree combination, bake the complete yellow, dragging article of cryosphere tobacco leaf;
2)It is surely wet to heat drying stage:
A, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 56 DEG C, wet-bulb temperature is raised to 38 DEG C, maintains Epidemic disaster combines, and bakes heat zone tobacco leaf master pulse drying more than 1/2;
B, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 61 DEG C, maintained warm, wet Degree combination, bakes heat zone tobacco leaf master pulse drying more than 2/3;
C, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.5 DEG C/h programming rate, dry-bulb temperature is raised to 65 DEG C, maintained warm, wet Degree combination, bakes that heat zone tobacco leaf master pulse is absolutely dry, and cryosphere tobacco leaf master pulse drying is more than 2/3;
D, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.5 DEG C/h programming rate, dry-bulb temperature is raised to 68 DEG C, maintained warm, wet Degree combination, it is absolutely dry to bake full stove tobacco leaf master pulse, terminates baking.
Described tobacco leaf is the ripe tobacco leaf in the bottom, middle part and top of cigarette strain;Described high-temperature area declines for air-flow In the exhaust outlet of formula bulk curing barn to barn 1.5 in the air inlet of 1.5 m region or air-flow rising-type bulk curing barn to barn M region, described low-temperature region is on the region of 1.5m in air inlet to the barn of airflow descending type compression flue-curing barn or air-flow 1.5m region in the exhaust outlet of lift-type bulk curing barn to barn;
When described barn is four layers of barn, step(1)D described in dry-bulb temperature be raised to 47 ~ 48 DEG C.
Described step(1)A, step B and(2)C, D step in use circulated at low velocity blower fan, described low speed follows The rotating speed of ring blower fan is 960r/min, air quantity 15000m3/ h, total head 170pa.
Described step(1)C, D step and step(2)A, dehumidified using high-speed circulating blower fan in step B, The rotating speed of described high-speed circulating blower fan is 1440r/min, air quantity 22000m3/ h, total head 220pa.
Embodiment 5
1st, example:Yun yan85 kind tobacco leaf is toasted in mountain of papers;
2nd, bulk curing barn is overhauled, it is ensured that plant equipment normal operation, wall is air tight, and wet temperature sensor works just Often;Used bulk curing barn is airflow descending type compression flue-curing barn;
3rd, stove dress bakes a kind;
4th, Temperature Humidity Sensor is hung up:The top layer of one extension barn of wet, temperature sensor, one hang over barn bottom.Temperature-sensitive Head 7cm as little as on blade tip(Surveyed epidemic disaster approximation represents blade tip temperature and the temperature environment residing for blade tip).
5th, dress cigarette requirement is compiled:Compile smoke 7.28kg/ poles, smoke filling density 51kg/m3.Compile even, fill even.Accomplish simultaneously: Low-temperature region suitably fills dilute(1 pole is filled less), high-temperature area suitably fills close(Fill 1 pole more).
The steady wet flue-cured tobacco dense drying method heated, including it is steady it is wet heat yellowing stage, it is steady it is wet heat drying stage, specifically Comprise the following steps:
1)It is surely wet to heat yellowing stage:
A, tobacco leaf is loaded into barn, closed barn, igniting, dry-bulb temperature is raised to 32 DEG C in 2h, then with 1.0 DEG C/h liter Warm speed, dry-bulb temperature is raised to 38 DEG C, wet-bulb temperature is adjusted to 36 DEG C, maintains epidemic disaster combination, bakes the change of heat zone blade tip It is yellow;
B, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 40 DEG C, maintained warm, wet Degree combination, bake heat zone tobacco leaf flavescence 7-8 into;
C, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 42 DEG C, maintained warm, wet Degree combination, the complete yellow, dragging article of tobacco leaf mesophyll for baking heat zone hook point;
D, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 46 DEG C(When barn is four During layer barn, dry-bulb temperature is raised to 48 DEG C), epidemic disaster combination is maintained, bakes the complete yellow, dragging article of cryosphere tobacco leaf;
2)It is surely wet to heat drying stage:
A, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 56 DEG C, wet-bulb temperature is raised to 38 DEG C, maintains Epidemic disaster combines, and bakes heat zone tobacco leaf master pulse drying more than 1/2;
B, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 60 DEG C, maintained warm, wet Degree combination, bakes heat zone tobacco leaf master pulse drying more than 2/3;
C, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 65 DEG C, maintained warm, wet Degree combination, bakes that heat zone tobacco leaf master pulse is absolutely dry, and cryosphere tobacco leaf master pulse drying is more than 2/3;
D, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.5 DEG C/h programming rate, dry-bulb temperature is raised to 67 DEG C, maintained warm, wet Degree combination, it is absolutely dry to bake full stove tobacco leaf master pulse, terminates baking.
The epidemic disaster change line chart of the embodiment of the present invention 5 is shown in Fig. 1.
Test example 1 --- the quality of tobacco contrast after baking
To be carried out by embodiment 1, test group 2 is carried out test group 1 by embodiment 2, and test group 3 is is carried out by embodiment 3, control group Routinely baking method is carried out, and result of the test is shown in Table 1.
The baking quality of tobacco of table 1 contrasts
The embodiment of the present invention 1(Test group 1)Tobacco rate is high after tobacco leaf is roasting, and quality is good, and price is high.Method more roasting than tradition bake green grass or young crops, Dust, the roasting bad cigarette such as withered add up to low 5.59 percentage points, and first-class cigarette ratio improves 5.16 percentage points, upper moderate proportions increase 4.65 percentage points, average price increases 2.05 yuan/kg.Sensory evaluating smoking's score is higher by 0.9 point, quality of tobacco be improved significantly.
The embodiment of the present invention 2(Test group 2)Tobacco rate is high after tobacco leaf is roasting, and quality is good, and price is high.Method more roasting than tradition bakes roasting Green grass or young crops, dust, the roasting bad cigarette such as withered add up to low 15.83 percentage points, and first-class cigarette ratio improves 6.15 percentage points, and upper moderate proportions increase Add 10.83 percentage points, average price increases 3.23 yuan/kg.Sensory evaluating smoking's score is higher by 2.2 points, quality of tobacco be improved significantly.
The embodiment of the present invention 3(Test group 3)Tobacco rate is high after tobacco leaf is roasting, and quality is good, and price is high.Method more roasting than tradition bakes roasting Green grass or young crops, dust, the roasting bad cigarette such as withered add up to low 5.40 percentage points, and first-class cigarette ratio improves 1.32 percentage points, and upper moderate proportions increase Add 6.33 percentage points, average price increases 3.34 yuan/kg.Sensory evaluating smoking's score is higher by 1.2 points, quality of tobacco be improved significantly.

Claims (10)

  1. A kind of 1. steady wet flue-cured tobacco dense drying method heated, it is characterised in that wet heat yellowing stage including steady, steady wet heat Drying stage, specifically include following steps:
    1)It is surely wet to heat yellowing stage:
    A, tobacco leaf is loaded into barn, closed barn, igniting, dry-bulb temperature is raised to 32 DEG C in 2 ~ 3h, then with 1.0 DEG C/h's Programming rate, dry-bulb temperature being raised to 37 ~ 39 DEG C, wet-bulb temperature is adjusted to 34 ~ 36 DEG C, wherein, when barn is airflow descending type compression During bulk curing barn, wet-bulb temperature is adjusted to 35 ~ 36 DEG C, and when barn is air-flow rising-type bulk curing barn, wet-bulb temperature is adjusted to 34 ~ 35 DEG C, epidemic disaster combination is maintained, bakes the flavescence of heat zone blade tip;
    B, stability maintenance wet-bulb temperature, adjust firepower, with 1.0 DEG C/h programming rate, dry-bulb temperature be raised to 40 ~ 41 DEG C, maintain temperature, Humidity combination, bake heat zone tobacco leaf flavescence 7-8 into;
    C, stability maintenance wet-bulb temperature, adjust firepower, with 1.0 DEG C/h programming rate, dry-bulb temperature be raised to 42 ~ 43 DEG C, maintain temperature, Humidity combination, the complete yellow, dragging article of tobacco leaf mesophyll for baking heat zone hook point;
    D, stability maintenance wet-bulb temperature, firepower is adjusted, with 0.5 ~ 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 45 ~ 46 DEG C, dimension Epidemic disaster combination is held, bakes the complete yellow, dragging article of cryosphere tobacco leaf;
    2)It is surely wet to heat drying stage:
    A, firepower is adjusted, with 1.0 DEG C/h programming rate, dry-bulb temperature is raised to 55 ~ 56 DEG C, wet-bulb temperature is raised to 37 ~ 38 DEG C, Epidemic disaster combination is maintained, bakes heat zone tobacco leaf master pulse drying more than 1/2;
    B, stability maintenance wet-bulb temperature, adjust firepower, with 1.0 DEG C/h programming rate, dry-bulb temperature be raised to 60 ~ 61 DEG C, maintain temperature, Humidity combination, heat zone tobacco leaf master pulse drying is baked more than 2/3;
    C, stability maintenance wet-bulb temperature, firepower is adjusted, with 1.0 ~ 1.5 DEG C/h programming rate, dry-bulb temperature is raised to 64 ~ 65 DEG C, dimension Epidemic disaster combination is held, bakes that heat zone tobacco leaf master pulse is absolutely dry, and cryosphere tobacco leaf master pulse drying is more than 2/3;
    D, stability maintenance wet-bulb temperature, adjust firepower, with 1.5 DEG C/h programming rate, dry-bulb temperature be raised to 67 ~ 68 DEG C, maintain temperature, Humidity combination, it is absolutely dry to bake full stove tobacco leaf master pulse, terminates baking.
  2. 2. the steady wet flue-cured tobacco dense drying method heated according to claim 1, it is characterised in that described flue-cured tobacco is Any of k326, cloud and mist 87, the big gold dollar of safflower, krk26.
  3. 3. the steady wet flue-cured tobacco dense drying method heated according to claim 1, it is characterised in that described tobacco leaf is cigarette The ripe tobacco leaf in bottom, middle part and the top of strain.
  4. 4. the steady wet flue-cured tobacco dense drying method heated according to claim 1, it is characterised in that step(1)A in institute The barn that loads tobacco leaf stated is specially that smoke filling density is 48 ~ 52kg/m according to 7 ~ 8kg/ poles in barn3Enter luggage cigarette, fill Cigarette principle is that low-temperature region fills 1 ~ 2 pole relative to smoke filling density less, and high-temperature area fills 1-2 poles more relative to smoke filling density.
  5. 5. the steady wet flue-cured tobacco dense drying method heated according to claim 4, it is characterised in that described high-temperature area The air inlet in region or air-flow rising-type bulk curing barn for 1.5 m in exhaust outlet to the barn of airflow descending type compression flue-curing barn is extremely 1.5 m region in barn, described low-temperature region are the area of 1.5m in air inlet to the barn of airflow descending type compression flue-curing barn 1.5m region in the exhaust outlet of domain or air-flow rising-type bulk curing barn to barn.
  6. 6. the steady wet flue-cured tobacco dense drying method heated according to claim 1, it is characterised in that step(1)A in institute State when barn is air-flow down type roasting room, wet-bulb temperature is adjusted to 36 DEG C.
  7. 7. the steady wet flue-cured tobacco dense drying method heated according to claim 1, it is characterised in that step(1)A in institute State when barn is air-flow ascending manner barn, wet-bulb temperature is adjusted to 35 DEG C.
  8. 8. the steady wet flue-cured tobacco dense drying method heated according to claim 1, it is characterised in that when described barn is During four layers of barn, step(1)D described in dry-bulb temperature be raised to 47 ~ 48 DEG C.
  9. 9. the steady wet flue-cured tobacco dense drying method heated according to claim 1, it is characterised in that described step(1)'s A, step B and(2)C, D step in use circulated at low velocity blower fan, the rotating speed of described circulated at low velocity blower fan is 960r/min, Air quantity is 15000m3/ h, total head 170pa.
  10. 10. the steady wet flue-cured tobacco dense drying method heated according to claim 1, it is characterised in that described step(1) C, D step and step(2)A, dehumidified using high-speed circulating blower fan in step B, described high-speed circulating blower fan Rotating speed is 1440r/min, air quantity 22000m3/ h, total head 220pa.
CN201711146242.1A 2017-11-17 2017-11-17 A kind of steady wet flue-cured tobacco dense drying method heated Pending CN107836744A (en)

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Cited By (7)

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CN108514151A (en) * 2018-05-16 2018-09-11 云南省烟草公司普洱市公司墨江县分公司 It is planted in the baking method of the tobacco NC71 of damp-heat area
CN109123745A (en) * 2018-11-05 2019-01-04 云南省烟草农业科学研究院 A kind of baking method improving tobacco leaf protein matter degradation rate
CN109156863A (en) * 2018-11-14 2019-01-08 云南省烟草农业科学研究院 A kind of flue-cured tobacco dense drying method to turn yellow when three-stage control
CN109288113A (en) * 2018-11-30 2019-02-01 贵州省烟草公司六盘水市公司 Baking process of the cloud and mist 87 in biomass energy barn
CN109288111A (en) * 2018-11-28 2019-02-01 湖南科技大学 Eight sections of baking process of NC102 upper tobacco leaf
CN110638080A (en) * 2019-10-10 2020-01-03 云南省烟草农业科学研究院 Biomass fuel and baking method for improving smoking quality of Yunyan 87
CN110638081A (en) * 2019-10-10 2020-01-03 云南省烟草农业科学研究院 High-efficiency baking method for improving appearance quality of K326 tobacco leaves

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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
CN105192874A (en) * 2015-11-05 2015-12-30 湖北省烟草科学研究院 Starch-lowering aroma-improving baking process of flue-cured tobaccos
CN106108097A (en) * 2016-09-05 2016-11-16 四川省烟草公司泸州市公司 A kind of baking method of flue-cured tobacco
CN106174671A (en) * 2015-05-05 2016-12-07 中国烟草总公司福建省公司 A kind of bulk curing barn deepens tobacco leaf color baking process

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CN106174671A (en) * 2015-05-05 2016-12-07 中国烟草总公司福建省公司 A kind of bulk curing barn deepens tobacco leaf color baking process
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
CN105192874A (en) * 2015-11-05 2015-12-30 湖北省烟草科学研究院 Starch-lowering aroma-improving baking process of flue-cured tobaccos
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108514151A (en) * 2018-05-16 2018-09-11 云南省烟草公司普洱市公司墨江县分公司 It is planted in the baking method of the tobacco NC71 of damp-heat area
CN109123745A (en) * 2018-11-05 2019-01-04 云南省烟草农业科学研究院 A kind of baking method improving tobacco leaf protein matter degradation rate
CN109156863A (en) * 2018-11-14 2019-01-08 云南省烟草农业科学研究院 A kind of flue-cured tobacco dense drying method to turn yellow when three-stage control
CN109288111A (en) * 2018-11-28 2019-02-01 湖南科技大学 Eight sections of baking process of NC102 upper tobacco leaf
CN109288113A (en) * 2018-11-30 2019-02-01 贵州省烟草公司六盘水市公司 Baking process of the cloud and mist 87 in biomass energy barn
CN110638080A (en) * 2019-10-10 2020-01-03 云南省烟草农业科学研究院 Biomass fuel and baking method for improving smoking quality of Yunyan 87
CN110638081A (en) * 2019-10-10 2020-01-03 云南省烟草农业科学研究院 High-efficiency baking method for improving appearance quality of K326 tobacco leaves

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