CN109820225A - Reduce the bulk curing barn circulating fan control method that tabacco fragrance substance is lost - Google Patents
Reduce the bulk curing barn circulating fan control method that tabacco fragrance substance is lost Download PDFInfo
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- CN109820225A CN109820225A CN201910033790.6A CN201910033790A CN109820225A CN 109820225 A CN109820225 A CN 109820225A CN 201910033790 A CN201910033790 A CN 201910033790A CN 109820225 A CN109820225 A CN 109820225A
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Abstract
The present invention discloses a kind of bulk curing barn circulating fan control method that reduction tabacco fragrance substance is lost, yellowing stage: reaching 40 DEG C to barn dry-bulb temperature since igniting, it is 10 minutes that the rotating forward time, which is 50 minutes reversing times,；The fixation stage: the stage reverse function is closed, and blower persistently rotates forward；The dry muscle stage: after barn dry-bulb temperature reaches 57 DEG C, reopening positive and negative rotating function, and it is 10 minutes that the rotating forward time, which is 50 minutes reversing times, until baking terminates；Tobacco flue-curing is carried out with this method, positive and negative rotating function is opened in high temperature section, resinae can generate the substance volatile oil and resin of more flue gas fragranceds, volatile oil can give out a sweet perfume the substance of smell at normal temperature, and resinae then needs to burn or could generate at relatively high temperatures the substance of flue gas fragranced；Positive and negative rotating function is opened in low-temperature zone, more amino acid can be generated, amino acid has double action for the color aspect of flue-cured tobacco.
Description
Technical field
The present invention relates to barns to control equipment technical field, specifically a kind of to reduce the intensive roasting of tabacco fragrance substance loss
Room circulating fan control method.
Background technique
China is tobacco leaf production big country, and cultivated area and total output rank first in the world.From last century the mid-80 with
Come, China carry out tobacco standardization production, quality of tobacco have it is biggish improve, some producing region tobacco leaf presentation qualities are
It is close to or up to the level of the states such as the U.S., Brazil, but tabacco fragrance deficiency is still the outstanding problem in tobacco leaf production, is seriously affected
China's material outlet is earned foreign exchange and the raising of cigarette product quality.
In recent years, with the popularization and application of the intensive coal-burning barn of conventional monomer, China is significantly improved in crops
The integral level in baking field, at the same also to the extension of crop acreage, intensive cropping gradually form and it is specialized
The further development of baking mode all plays apparent facilitation.But with modern agriculture implementation, people couple
The requirement of bulk curing barn " green low-carbon, energy-saving and emission-reduction, saving of labor's consumption reduction " further increases, the insufficient also day of common intensive baking room
Benefit highlights.Existing bulk curing barn heating system and temperature and humidity control system are by manually being controlled, this control mode
Large labor intensity, and control effect is difficult to hold；Error is larger, easily leads to being unevenly distributed for temperature and humidity field, so that drying
The quality of roasting product is uncontrollable, and energy consumption is higher.It is badly in need of possessing the controller real-time monitoring barn temperature and humidity of internet of things functional
Data, and baking data are changed in real time.
There is high temperature and the low-temperature space temperature difference is larger, in same barn there are interior temperature uniformity is inadequate in intensive flue-cured tobacco barn
Due to the location of tobacco leaf difference, it is obvious that cured effect toasts speed difference.Bulk curing barn either airflow descending type compression
When barn or air-flow ascending manner barn all have heating ventilation, the temperature of air outlet is excessively high, after long-time heating air-supply, uses
Upper canopy temperature is excessively high around air port, and tobacco leaf, which first turns yellow with other canopies, to be dehydrated, and lower canopy is because hot wind finally reaches, and wind-warm syndrome reduces, this layer
Tobacco leaf is consistently lower than other layers of rate of drying, and baking process is made to be difficult to control, and artificial dependency degree is high.
Summary of the invention
It is an object of the invention in view of the above-mentioned deficiencies in the prior art, provide a kind of reduction tabacco fragrance substance
The bulk curing barn circulating fan control method of loss, the method for the present invention solve barn in the prior art canopy temperature difference mistake up and down
Greatly, lower canopy turns yellow and dry muscle speed seriously lags behind canopy and the higher problem of energy consumption.The present invention passes through barn circulating fan
Positive and negative rotation control reduces the loss of tabacco fragrance substance, a kind of technological approaches for improving China's tabacco fragrance is provided, to mention as early as possible
The integral level of high China's leaf tobacco production.
The present invention is achieved through the following technical solutions its purpose:
A kind of bulk curing barn circulating fan control method for reducing tabacco fragrance substance and being lost, using circulating fan Frequency Converter Control
Positive and negative rotation blower, steps are as follows:
(1), yellowing stage: reaching 40 DEG C to barn dry-bulb temperature since igniting, and blower first rotates forward 50 minutes, then inverts 10
Minute, the continuous cyclic switching of positive and negative rotation；
(2), the fixation stage: the stage blower reverse function is closed, and blower persistently rotates forward, and dry-bulb temperature is promoted by 40 DEG C to 57
℃；
(3), the dry muscle stage: after barn dry-bulb temperature reaches 57 DEG C, reopening positive and negative rotating function, first rotates forward 50 minutes then
Reversion 10 minutes, the continuous cyclic switching of positive and negative rotation terminate until baking；
The frequency of the circulating fan frequency converter is 30-40Hz, circulating fan rotating speed 900-1200r/min.
Preferably, the fixation stage Earlier stage of fixing color temperature gradually rises to 47 DEG C by 40 DEG C, is heated up with every 2-3 hours
1 DEG C, and hydrofuge is combined, stablize warm ball temperature between 38-39 DEG C, dry humidity difference is kept for 7-8 DEG C, to bulk curing barn bottom
Tobacco leaf all plays cylinder, and the cigarette muscle of two layers of tobacco leaf turns yellow, and occurs hooking sharp crimping；Fixation latter temperature gradually rises to 57 by 47 DEG C
DEG C, risen with every 1-2 hours l DEG C of the speed of heating up, continues hydrofuge, wet-bulb temperature, which still maintains, to be stablized at 38-39 DEG C, wet and dry bulb
It 16-17 DEG C of temperature difference, when temperature rises to 53 DEG C, moisturizing 4-6 hours, to two layers of tobacco leaf parent roll, is further continued for heating up.
The present invention compared with the prior art, has the advantage that as follows:
1. opening positive and negative rotating function in high temperature section, resinae can generate substance, volatile oil and the resin of more flue gas fragranceds:
Volatile oil and resin are two important components of flavor matter in tobacco leaf.Volatile oil can give out a sweet perfume the object of smell at normal temperature
Matter, resinae then need to burn or could generate at relatively high temperatures the substance of flue gas fragranced.
2. opening positive and negative rotating function in low-temperature zone, more amino acid, color of the amino acid for flue-cured tobacco can be generated
Aspect has double action.
Amino acid: amino acid has double action for the color aspect of flue-cured tobacco, on the one hand can generate after its burning
Ammonia influences flue gas mass；Another aspect flue-cured tobacco amino acid and carbohydrate during modulation fermentation, being aged and burning and sucking occur plum and draw
Moral reaction, such reaction are considered as generating the significant process of fragrance and color variation.Through Amadori molecule in mailland reaction
Rearrangement can generate a large amount of intermediate product, such as 1- deoxidation -1- proline-D-Fructose, 1- deoxidation -1- phenylalanine-D-Fructose, 1-
Deoxidation -1- asparagine-D-Fructose, 1- deoxidation -1- valine-D-Fructose.These substances are very heavy to the formation of scent of fire cured tobacco
It wants.In addition, some amino acid such as phenylalanine, itself can directly be decomposed into perfume compound, such as benzyl alcohol.Benzyl carbinol etc..
Specific embodiment
The present invention is further explained in the light of specific embodiments.
The present invention is a kind of bulk curing barn circulating fan control method for reducing tobacco leaf judging parameter, and barn is followed using one
The 2.2kw positive and negative rotation blower of ring fan frequency converter control, frequency converter frequency 30-40Hz, circulating fan rotating speed 900-
1200r/min。
Positive and negative rotation control is realized by frequency converter, control logic: is closed in 40 DEG C -57 DEG C i.e. big hydrofuge stage function, no
Influence the normal hydrofuge of barn.In flavescence, dry muscle section, humidity priority grade is greater than temperature prioritised grade, positive and negative rotating function is opened, between the time
It is divided into 10 minutes/hour.
The control logic of the positive and negative rotation are as follows:
1) positive and negative rotation main function is for temperature and humidity in balanced barn, and time interval is up to 10 minutes/hour.
2) 40 DEG C -57 DEG C i.e. big hydrofuge stage function is closed, and does not influence the normal hydrofuge of barn.
Being set as 40 DEG C of reasons is that the canopy temperature difference is 2-3 DEG C up and down at this time, and 38 DEG C are the starting generally acknowledged into fixation stage mark
Temperature.Being set as 57 DEG C of reasons is that the canopy temperature difference is 3-4 DEG C up and down at this time, and 53 DEG C are the generally acknowledged mark temperature into dry muscle section.
3) in flavescence, dry muscle section, humidity priority grade is greater than temperature prioritised grade, answers humidity in balanced barn in time at this time.
The positive and negative rotation blower belongs to the operational mode of general air-flow down type roasting room when rotating forward, in blower vertical base
Negative pressuren zone is formed, the operational mode of general air-flow ascending manner barn is belonged to when circulating fan reversion, in the vertical upper of blower
Formed negative pressuren zone, repeatedly switch circulating fan operating status, realize barn in hot wind stirring, accelerate barn temperature with it is wet
The even speed of degree.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (2)
1. a kind of bulk curing barn circulating fan control method for reducing tabacco fragrance substance and being lost, using circulating fan frequency converter control
The positive and negative rotation blower of system, which is characterized in that steps are as follows:
(1), yellowing stage: reaching 40 DEG C to barn dry-bulb temperature since igniting, and blower first rotates forward 50 minutes, then inverts 10
Minute, the continuous cyclic switching of positive and negative rotation；
(2), the fixation stage: the stage blower reverse function is closed, and blower persistently rotates forward, and dry-bulb temperature is promoted by 40 DEG C to 57
℃；
(3), the dry muscle stage: after barn dry-bulb temperature reaches 57 DEG C, reopening positive and negative rotating function, first rotates forward 50 minutes then
Reversion 10 minutes, the continuous cyclic switching of positive and negative rotation terminate until baking；
The frequency of the circulating fan frequency converter is 30-40Hz, circulating fan rotating speed 900-1200r/min.
2. the bulk curing barn circulating fan control method according to claim 1 for reducing tabacco fragrance substance and being lost, special
Sign is that the fixation stage Earlier stage of fixing color temperature gradually rises to 47 DEG C by 40 DEG C, is heated up 1 DEG C with every 2-3 hours, and combine
Hydrofuge stablizes warm ball temperature between 38-39 DEG C, and dry humidity difference is kept for 7-8 DEG C, all beats to bulk curing barn bottom tobacco leaf
The cigarette muscle of cylinder, two layers of tobacco leaf turns yellow, and occurs hooking sharp crimping；Fixation latter temperature gradually rises to 57 DEG C by 47 DEG C, with every 1-2
L DEG C of the speed of hour heating up rises, and continues hydrofuge, wet-bulb temperature, which still maintains, to be stablized at 38-39 DEG C, wet-bulb depression 16-
It 17 DEG C, when temperature rises to 53 DEG C, moisturizing 4-6 hours, to two layers of tobacco leaf parent roll, is further continued for heating up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033790.6A CN109820225A (en) | 2019-01-15 | 2019-01-15 | Reduce the bulk curing barn circulating fan control method that tabacco fragrance substance is lost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910033790.6A CN109820225A (en) | 2019-01-15 | 2019-01-15 | Reduce the bulk curing barn circulating fan control method that tabacco fragrance substance is lost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109820225A true CN109820225A (en) | 2019-05-31 |
Family
ID=66860283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910033790.6A Pending CN109820225A (en) | 2019-01-15 | 2019-01-15 | Reduce the bulk curing barn circulating fan control method that tabacco fragrance substance is lost |
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| CN (1) | CN109820225A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114532572A (en) * | 2022-04-18 | 2022-05-27 | 河南中烟工业有限责任公司 | Tobacco leaf yellowing stage and color fixing early stage curing process in bulk curing barn |
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|---|---|---|---|---|
| WO2008132147A1 (en) * | 2007-04-25 | 2008-11-06 | Souza Cruz S.A. | A kiln and a method for curing tobacco leaves |
| CN106418640A (en) * | 2016-11-22 | 2017-02-22 | 河南农业大学 | Method for preventing tobacco leaves from mildewing and rotting in baking process of airflow rising type bulk curing barn |
| CN206025182U (en) * | 2016-08-15 | 2017-03-22 | 中山市碧朗节能设备有限公司 | Air can environmental protection tobacco drying -machine |
| CN206714055U (en) * | 2017-04-12 | 2017-12-08 | 云南省烟草公司大理州公司 | A kind of bulk curing barn airflow direction adjustment control device |
| CN108477661A (en) * | 2018-05-19 | 2018-09-04 | 黔南州烟草公司平塘县分公司 | A kind of air-flow reverse circulation moisturizing flavescence baking process improving quality of tobacco |
| CN208175976U (en) * | 2017-07-20 | 2018-12-04 | 浙江明新能源科技有限公司 | Tobacco leaf roasting room |
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2019
- 2019-01-15 CN CN201910033790.6A patent/CN109820225A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008132147A1 (en) * | 2007-04-25 | 2008-11-06 | Souza Cruz S.A. | A kiln and a method for curing tobacco leaves |
| CN206025182U (en) * | 2016-08-15 | 2017-03-22 | 中山市碧朗节能设备有限公司 | Air can environmental protection tobacco drying -machine |
| CN106418640A (en) * | 2016-11-22 | 2017-02-22 | 河南农业大学 | Method for preventing tobacco leaves from mildewing and rotting in baking process of airflow rising type bulk curing barn |
| CN206714055U (en) * | 2017-04-12 | 2017-12-08 | 云南省烟草公司大理州公司 | A kind of bulk curing barn airflow direction adjustment control device |
| CN208175976U (en) * | 2017-07-20 | 2018-12-04 | 浙江明新能源科技有限公司 | Tobacco leaf roasting room |
| CN108477661A (en) * | 2018-05-19 | 2018-09-04 | 黔南州烟草公司平塘县分公司 | A kind of air-flow reverse circulation moisturizing flavescence baking process improving quality of tobacco |
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| 宫长荣: "《密集式烘烤》", 30 June 2007, 中国轻工业出版社 * |
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|---|---|---|---|---|
| CN114532572A (en) * | 2022-04-18 | 2022-05-27 | 河南中烟工业有限责任公司 | Tobacco leaf yellowing stage and color fixing early stage curing process in bulk curing barn |
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Application publication date: 20190531 |