CN101088424A - Tobacco flake remoistening process based on medium temperature and humidity control - Google Patents
Tobacco flake remoistening process based on medium temperature and humidity control Download PDFInfo
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- CN101088424A CN101088424A CN 200710054735 CN200710054735A CN101088424A CN 101088424 A CN101088424 A CN 101088424A CN 200710054735 CN200710054735 CN 200710054735 CN 200710054735 A CN200710054735 A CN 200710054735A CN 101088424 A CN101088424 A CN 101088424A
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 18
- 244000061176 Nicotiana tabacum Species 0.000 title 1
- 241000208125 Nicotiana Species 0.000 claims abstract description 17
- 238000012360 testing method Methods 0.000 claims description 24
- 235000019504 cigarettes Nutrition 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 6
- 238000010793 Steam injection (oil industry) Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003672 processing method Methods 0.000 description 7
- 230000008676 import Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009123 feedback regulation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The tobacco flake remoistening process based on medium temperature and humidity control stabilizes and raises the tobacco flake quality through controlling the temperature, humidity and amount of the wet air before the gaseous medium in the inlet of the remoistening cylinder contacts with tobacco flake. Compared with available technology, the process of the present invention has the advantages of short response time, high stability of the outgoing tobacco flake temperature and water content, and improved tobacco flake quality and stability.
Description
Technical field
The present invention relates to the loosening and gaining moisture processing method of smoked sheet in the production of cigarettes process, specifically relate to a kind of based on the humiture of gas medium and the tobacco flake remoistening process of flow-control.
Technical background
In the production of cigarettes process, at first to carry out loosening and gaining moisture and handle the smoked sheet after cutting, its operation task mainly is to make smoked sheet loose and increase certain moisture content and temperature, to satisfy subsequent production processing.In actual production process, finish this operation task, need to the sheet cigarette that compresses by cylinder rolling and cylinder in the acting in conjunction of harrow nail reach loose effect, be sprayed on the sheet cigarette that is moving with steam ejection water simultaneously and realize increasing certain temperature and moisture content, and the control (tobacco strip structure) of loose effect in the process and product physical quality is to finish by the method for control return air temperature.Along with the continuous development of cigarette technology, 2003 editions " cigarette process standard " replenishes the operation task that has proposed " improving the smoked sheet aesthetic quality " to tobacco flake remoistening, and the franchise of smoked sheet temperature and moisture content behind the loosening and gaining moisture has been proposed requirement.
Recently, find that in supplied materials situation one regularly, crudy of tobacco flake remoistening (physical quality and aesthetic quality) and stability depend primarily on the state (temperature of medium, humidity and air quantity) of gas medium by test.
Adjusting to return air temperature in the traditional diamond-making technique is the temperature of control moisture regain back smoked sheet and the main means of water content, return air temperature (see in the accompanying drawing 1 shown in 1) mainly is by PID feedback regulation steam flow, be steam regulation aperture control (see in the accompanying drawing 1 shown in 2), the monitoring point of return air temperature is at the loosening and gaining moisture rear, when regulating the steam flow of front end, changed the temperature and humidity conditions of inlet gas medium, and then pass through processing again to the sheet cigarette, the time delay of the method control system is longer, and the fluctuation of handling back smoked sheet moisture content and temperature is bigger.
Two stage control methods that Chinese patent application number 200610045526.7 (publication number CN1899136A) disclose a kind of wetting leaf moisture regain temperature improve conventional method.This method has been invented and has been utilized two kinds of series connection temperature control modes to control the temperature of wetting leaf moisture regain, control by the steam valve aperture, realized the accurate control of technological temperature (outlet sheet cigarette temperature), considered in the invention that to moisture regain sheet cigarette temperature controlled control method the control of physical quality is had effect preferably.
From conventional method and improved method as can be seen, the control thinking basically identical of technical process, just different on control method, since present stage by evidence the humiture of inlet gas medium to the product quality important influence, be comprehensive inadequately to influencing in the obviously existing processing method in the control of the factor of goods crudy and the realization of control method.In sum, need a kind of new remoistening process of invention, it is loose and increase the purpose of temperature and moisture content to realize that original loosening and gaining moisture machine is finished the sheet cigarette, can realize again simultaneously improving and the physical quality of stable tobacco flake remoistening especially improves purpose with stabilization cigarette aesthetic quality in this operation process.
Summary of the invention
A kind of tobacco flake remoistening process that purpose of the present invention proposes at existing deficiency in the above-mentioned prior art just based on medium temperature and humidity control.This method is stabilized and increased the crudy of smoked sheet based on temperature, humidity and the air quantity of control loosening and gaining moisture tube inlet gas medium (contacting preceding humid air with smoked sheet).
Purpose of the present invention can realize by following technique measures:
The present invention is a kind of tobacco flake remoistening process based on medium temperature and humidity control, temperature, humidity and the air quantity of humid air were stabilized and increased the crudy of smoked sheet before this method contacted with smoked sheet based on control loosening and gaining moisture tube inlet gas medium, and it comprises the steps:
A, by early stage temperature, humidity, wind speed or the air quantity of gas medium----humid air being determined optimum setting value: medium temperature T, humidity H and wind speed V to the processing characteristics test of raw material or prescription; Set the undulating value that allows simultaneously: temperature/Δ T, humidity/Δ H and wind speed/Δ V;
B, humiture, wind speed (air quantity) the online testing device test access medium temperature T of place, humidity H and wind speed V by being arranged on the gas medium porch, the on-line measurement data acquisition is compared with initial set value to computer control system, and provide instruction by computer control system, pass through control system, respectively blower fan frequency, steam injection rate and heater control device are regulated and control, determined suitable wind speed V, medium temperature T and humidity H;
C, enter the material state for the treatment of after stable,, when beginning to produce, be back to step b, inlet medium temperature, humidity and wind speed or air quantity are carried out on-line testing, real-time monitoring when sheet cigarette material enters.
Because what measure in the porch that the device of humiture might provide is rh value, need certain absolute humidity H that calculates, so the computational methods of required initial steam injection rate are as follows among the present invention:
Δm＝(H-H
0)×m
0 ④
H: the import medium is set water capacity, kg/kg;
H
0: the initial water capacity of import medium, kg/kg;
m
0: medium dry air mass flow, kg/h;
Δ m: medium steam mass flow, kg/h;
P: humid air pressure in the inlet pipeline, Pa;
R: gas constant, 8.314J/molK;
T
0: import medium temperature, K;
V
0: import velocity of medium, m/s;
S: inlet pipeline sectional area, m
2
_
0: import medium relative humidity, %;
p
S0: temperature T
0Under saturated vapor pressure, Pa.
Method of the present invention compared with prior art, the response time of control shortens, the stability of outlet smoked sheet moisture content and temperature improves, and the inherent quality of goods and stability are improved.
Description of drawings
Fig. 1 prior art processing method test point and control device structure chart.
Sequence number among Fig. 1: 1. return air temperature test point and return air temperature testing arrangement; 2. steam valve opening control device; 3. heater stop valve; 4. return air fan frequency control apparatus
Fig. 2 test point of the present invention and control device structure chart.
Sequence number among Fig. 2: the 5. humiture, wind speed or the air quantity online testing device that are arranged on the gas medium porch; 6. return air temperature test point and testing arrangement; 7. steam valve opening control device; 8. heater control device; 9. return air fan frequency control apparatus.
Fig. 3 schematic diagram of the present invention.
The specific embodiment
The present invention is further described below with reference to embodiment (accompanying drawing):
Embodiment 1:
The tobacco leaf that this enforcement is adopted is a Fujian X grade, and it comprises the steps:
1, by early stage temperature, humidity, the wind speed (air quantity) of gas medium----humid air being determined best initial set value: medium temperature T (115 ℃), humidity H (0.66kg/kg) and wind speed V (3.55m/s) to the processing characteristics test of composition of raw materials; Setting undulating value simultaneously is temperature Δ T (5 ℃), humidity Δ H (0.01kg/kg) and wind speed Δ V (0.05m/s).
2, by humiture, wind speed or the air quantity online testing device 5 (referring to shown in Figure 2) that are arranged on the gas medium porch it is carried out temperature, humidity and wind speed (air quantity) on-line testing, measurement data acquisition is compared with initial set value to computer control system:
The wind speed V ' of a, online acquisition, relatively | V '-3.55m/s| and Δ V (0.05m/s), if | V '-3.55m/s|＞Δ V (0.05m/s), provide by computer control system and to instruct to return air fan control device 9 (referring to Fig. 2), making by changing the blower fan frequency | V '-3.55m/s| is less than Δ V (0.05m/s), the return air fan frequency that relative fixed is suitable;
The humidity H ' of b, online acquisition, relatively | H '-0.66kg/kg| and Δ H (0.01kg/kg), if | H '-0.66kg/kg|＞Δ H (0.01kg/kg), provide by computer control system and to instruct to steam valve control device 7 (referring to Fig. 2), make by adjusting the steam injection rate | H '-0.66kg/kg|＜Δ H (0.01kg/kg), realize the purpose of consistent wet content, carry out adjustment again;
The temperature T of c, online acquisition ', relatively | T '-115 ℃ | and Δ T (5 ℃), if | T '-115 ℃ |＞Δ T (5 ℃), provide by computer control system and to instruct to heater control device 8 (referring to shown in Figure 2), make by adjusting heater control device | T '-115 ℃ |＜Δ T (5 ℃), the purpose of realization equilibrium temperature.
3, enter the material state for the treatment of after stable,, be back to step 2, inlet medium temperature, humidity and wind speed or air quantity are carried out on-line testing, real-time monitoring when sheet cigarette material enters when beginning to produce.
The invention process result and existing processing method result of implementation are relatively referring to table 1:
Table 1 the present invention and existing processing method smoked sheet crudy are relatively
Embodiment 2:
The tobacco leaf that this enforcement is adopted is a Yunnan tobacco, and it comprises the steps:
1, by early stage temperature, humidity, the wind speed (air quantity) of gas medium----humid air being determined best initial set value: medium temperature T (60 ℃), humidity H (0.15kg/kg) and wind speed V (1.37m/s) to the processing characteristics test of composition of raw materials; Setting undulating value simultaneously is temperature Δ T (5 ℃), humidity Δ H (0.01kg/kg) and wind speed Δ V (0.05m/s);
2, by humiture, wind speed or the air quantity online testing device 5 (referring to shown in Figure 2) that are arranged on the gas medium porch it is carried out temperature, humidity and wind speed (air quantity) on-line testing, measurement data acquisition is compared with initial set value to computer control system:
The wind speed V ' of a, online acquisition, relatively | V '-1.37m/s | and Δ V (0.05m/s), if | V '-1.37m/s|＞Δ Y (0.05m/s), provide by computer control system and to instruct to return air fan control device 9 (referring to Fig. 2), making by changing the blower fan frequency | V '-1.37m/s| is less than Δ Y (0.05m/s), the return air fan frequency that relative fixed is suitable;
The humidity H ' of b, online acquisition, relatively | H '-0.15kg/kg| and Δ H (0.01kg/kg), if | H '-0.15kg/kg|＞Δ H (0.01kg/kg), provide by computer control system and to instruct to steam valve control device 7 (referring to Fig. 2), make by adjusting the steam injection rate | H '-0.15kg/kg|＜Δ H (0.01kg/kg), realize the purpose of consistent wet content, carry out adjustment again;
The temperature T of c, online acquisition ', relatively | T '-60 ℃ | and Δ T (5 ℃), if | T '-60 ℃ |＞Δ T (5 ℃), provide by computer control system and to instruct to heater control device 8 (seeing shown in Figure 2), make by adjusting heater control device | T '-60 ℃ ℃ |＜Δ T (5 ℃), the purpose of realization equilibrium temperature.
3, enter the material state for the treatment of after stable,, be back to step 2, inlet medium temperature, humidity and wind speed or air quantity are carried out on-line testing, real-time monitoring when sheet cigarette material enters when beginning to produce.
The invention process result and existing processing method result of implementation are relatively referring to table 2:
Table 2 the present invention and existing processing method smoked sheet crudy are relatively
Claims (1)
1, a kind of tobacco flake remoistening process based on medium temperature and humidity control, it is characterized in that: temperature, humidity and the air quantity of the humid air before described method contacts with smoked sheet based on control loosening and gaining moisture tube inlet gas medium are stabilized and increased the crudy of smoked sheet, and it comprises the steps:
A, by early stage temperature, humidity, wind speed or the air quantity of gas medium----humid air being determined best initial set value: medium temperature T, humidity H and wind speed V to the processing characteristics test of raw material or prescription; Set the undulating value that allows simultaneously: temperature Δ T, humidity Δ H and wind speed Δ V;
B, humiture, wind speed or the air quantity online testing device test access medium temperature T ' of place, humidity H ' and wind speed V ' by being arranged on the gas medium porch, the on-line measurement data acquisition is compared with initial set value to computer control system, and provide instruction by computer control system, pass through control system, respectively blower fan frequency, steam injection rate and heater control device are regulated and control, determined suitable wind speed V, medium temperature T and humidity H;
C, enter the material state for the treatment of after stable,, be back to step b, inlet medium temperature, humidity and wind speed or air quantity are carried out on-line testing, real-time monitoring when sheet cigarette material enters when beginning to produce.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710054735 CN101088424A (en) | 2007-07-09 | 2007-07-09 | Tobacco flake remoistening process based on medium temperature and humidity control |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710054735 CN101088424A (en) | 2007-07-09 | 2007-07-09 | Tobacco flake remoistening process based on medium temperature and humidity control |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103383541A (en) * | 2013-06-27 | 2013-11-06 | 红云红河烟草(集团)有限责任公司 | Moisture regain feed-forward control method based on incoming material moisture content difference |
| CN103604291A (en) * | 2013-11-12 | 2014-02-26 | 广东省现代农业装备研究所 | Material drying control equipment and control method thereof |
| CN103876267A (en) * | 2012-12-19 | 2014-06-25 | 山东中烟工业有限责任公司青岛卷烟厂 | Water feeding control method and system of tobacco moisture regainer |
| CN105795502A (en) * | 2016-05-26 | 2016-07-27 | 福建武夷烟叶有限公司 | Redrying feeding and flavoring material moisture content and temperature controlling method |
| CN110262419A (en) * | 2019-06-17 | 2019-09-20 | 云南中烟工业有限责任公司 | A method of intensity is processed based on cut tobacco moisture vaporization enthalpy regulation roller drying cut tobacco |
| CN113876008A (en) * | 2021-11-17 | 2022-01-04 | 河南中烟工业有限责任公司 | A method for controlling the stability of moisture content of loose and re-moisturized tobacco sheets |
| CN114545995A (en) * | 2022-03-10 | 2022-05-27 | 安徽中烟工业有限责任公司 | Method for controlling loose moisture regain return air temperature |
| CN118177408A (en) * | 2024-05-15 | 2024-06-14 | 河北白沙烟草有限责任公司保定卷烟厂 | Tobacco shred humidifying and separating device |
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2007
- 2007-07-09 CN CN 200710054735 patent/CN101088424A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103876267A (en) * | 2012-12-19 | 2014-06-25 | 山东中烟工业有限责任公司青岛卷烟厂 | Water feeding control method and system of tobacco moisture regainer |
| CN103383541A (en) * | 2013-06-27 | 2013-11-06 | 红云红河烟草(集团)有限责任公司 | Moisture regain feed-forward control method based on incoming material moisture content difference |
| CN103604291A (en) * | 2013-11-12 | 2014-02-26 | 广东省现代农业装备研究所 | Material drying control equipment and control method thereof |
| CN103604291B (en) * | 2013-11-12 | 2017-12-05 | 广东省现代农业装备研究所 | A kind of dry materials control device and its control method |
| CN105795502A (en) * | 2016-05-26 | 2016-07-27 | 福建武夷烟叶有限公司 | Redrying feeding and flavoring material moisture content and temperature controlling method |
| CN110262419B (en) * | 2019-06-17 | 2021-07-09 | 云南中烟工业有限责任公司 | A method for controlling the processing strength of drum drying leaf silk based on the moisture evaporation enthalpy of leaf silk |
| CN110262419A (en) * | 2019-06-17 | 2019-09-20 | 云南中烟工业有限责任公司 | A method of intensity is processed based on cut tobacco moisture vaporization enthalpy regulation roller drying cut tobacco |
| CN113876008A (en) * | 2021-11-17 | 2022-01-04 | 河南中烟工业有限责任公司 | A method for controlling the stability of moisture content of loose and re-moisturized tobacco sheets |
| CN113876008B (en) * | 2021-11-17 | 2023-11-21 | 河南中烟工业有限责任公司 | A method for controlling the stability of moisture content of loose moisture regained tobacco tablets |
| CN114545995A (en) * | 2022-03-10 | 2022-05-27 | 安徽中烟工业有限责任公司 | Method for controlling loose moisture regain return air temperature |
| CN114545995B (en) * | 2022-03-10 | 2023-05-16 | 安徽中烟工业有限责任公司 | Control method for loosening and conditioning return air temperature |
| CN118177408A (en) * | 2024-05-15 | 2024-06-14 | 河北白沙烟草有限责任公司保定卷烟厂 | Tobacco shred humidifying and separating device |
| CN118177408B (en) * | 2024-05-15 | 2024-09-06 | 河北白沙烟草有限责任公司保定卷烟厂 | Tobacco shred humidifying and separating device |
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