CN103371428A - Control method used for stabilizing drum-type cut tobacco drying hot air humidity - Google Patents
Control method used for stabilizing drum-type cut tobacco drying hot air humidity Download PDFInfo
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- CN103371428A CN103371428A CN2012101063935A CN201210106393A CN103371428A CN 103371428 A CN103371428 A CN 103371428A CN 2012101063935 A CN2012101063935 A CN 2012101063935A CN 201210106393 A CN201210106393 A CN 201210106393A CN 103371428 A CN103371428 A CN 103371428A
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Abstract
Disclosed is a control method used for stabilizing drum-type cut tobacco drying hot air humidity. A device comprises a fresh air temperature and humidity detection device controlled by a PID (proportion, integration and differentiation) control unit, and a steam applying control device, the fresh air temperature and humidity detection device is connected with an air quantity control system and a hot air temperature control system and feeds temperature and humidity detection values of fresh air back to the PID control unit, the steam applying control device is connected with the hot air temperature control system through a steam spraying pipeline, steam applying quantity of the steam applying control device is controlled by the PID control unit, the PID control unit sets a control value of fresh air humidity to be 85%RH (25 DEG C), calculates the steam applying quantity according to the fresh air quantity and the temperature and humidity detection values which are fed back, and controls the steam applying control device to complete steam applying. By the device and the method, the effect that humidity of cut tobacco in the process of drum drying is free of influences of seasons and weather conditions can be realized, process parameters of drum drying can be stabilized, and stability of sensory quality of dried cut tobacco is guaranteed.
Description
Technical field
The present invention relates to a kind of control method of tobacco processing equipment, refer to especially the control method of Tobacco drying link cylinder class tobacco shreds drying hot blast humidity in the tobacco processing course.
Background technology
The tobacco shreds drying operation is one of critical process in the cigarette primary processing production process.In this operation, by drying, make pipe tobacco fully loose, and generation is necessarily curling, increase the filling capacity of pipe tobacco.The advantages such as drum apparatus has that treating capacity is large, flexible operation, expense are relatively cheap become the major way of tobacco cutting process dry materials.
The process of moisture from the pipe tobacco diffusion into the surface to hot blast is the important step that the dry materials quality is transmitted in the cylinder.The chief motivation of this mass transport process is the pressure differential of moisture dividing potential drop in pipe tobacco surface moisture dividing potential drop and the hot blast.Pipe tobacco surface moisture dividing potential drop and pipe tobacco temperature correlation, and the humidity of hot blast moisture dividing potential drop and hot blast is closely related.The hot blast of conventional rollers class tobacco shreds drying device does not circulate in cylinder, and its source is the fresh air in the environment, so the humidity of environmental air determined the humidity of hot blast, and the transfer rate of moisture from the pipe tobacco diffusion into the surface to hot blast had significant role.
As shown in Figure 1, the hot blast control system of traditional cylinder class tobacco shreds drying equipment includes only air quantity control system and temperature control system, and the humidity of hot blast is not controlled; Dry run adopts usually stablizes hot blast air quantity and hot blast temperature, regulates the control mode of cylinder barrel temperature according to the outlet moisture content of cut tobaccos.Under different season and weather condition, the humidity of environmental air has than great fluctuation process (relative humidity 20%～80%), causes the humidity of hot blast also to have larger difference.In actual production process, under different season and weather condition, even other process conditions are in full accord, because the greatest differences of the humidity of environmental air, the average fluctuation range of cylinder barrel temperature reaches 10 ℃, and aesthetic quality's stability of pipe tobacco after the drying is caused certain influence.
Summary of the invention
For the deficiencies in the prior art part, the invention provides a kind of control method of stable cylinder class tobacco shreds drying hot blast humidity, this control method can realize that the humidity of pipe tobacco roller drying process hot blast is not subjected to the impact of season and weather condition, thereby stablize the technological parameter of roller drying, guarantee dry rear pipe tobacco aesthetic quality's stability.
For achieving the above object, technical solution of the present invention is:
Be used for stablizing the control method of cylinder class tobacco shreds drying hot blast humidity, it is characterized in that: the device that this control method relates to comprises an air quantity control system and a hot blast temperature control system, between air quantity control system and hot blast temperature control system, be provided with a MCS, this MCS comprises by fresh wind-warm syndrome humidity detector of PID control module control and a steam and applies control device, described fresh wind-warm syndrome humidity detector connects air quantity control system and hot blast temperature control system, and with the temperature of fresh wind, the Humidity Detection value feeds back to the PID control module; Described steam applies control device: connect the hot blast temperature control system by vapor injection line, this steam applies the steam applied amount of control device and is controlled by the PID control module.The controlling value that the PID control module is set fresh rheumatism degree is 85%RH (25 ℃), fresh wind air volume test value according to the air quantity control system feedback, and the temperature and humidity measure value of the fresh wind of fresh wind-warm syndrome humidity detector feedback, calculate the steam applied amount by the PID control module, and control steam applies control device and finishes steam and apply.
The usefulness of technique scheme is:
Cylinder class tobacco shreds drying equipment of the present invention is to increase a MCS between the air quantity control system of traditional cylinder class tobacco shreds drying equipment and temperature control system, and the humidity of fresh wind is controlled at 85%RH (25 ℃).Because the humidity controlling value of 85%RH (25 ℃) is greater than the surrounding air humidity under most conditions, and MCS of the present invention can replenish steam to fresh wind automatically and effectively, avoided changing impact on hot blast humidity because of surrounding air humidity under Various Seasonal and the weather condition, increase substantially the stability of production process technology condition under Various Seasonal and the weather condition, guaranteed the stability of cigarette product quality.
Description of drawings
Fig. 1 is the hot blast control system schematic diagram of conventional rollers class tobacco shreds drying equipment;
Fig. 2 is the hot blast control system schematic diagram of cylinder class tobacco shreds drying equipment of the present invention;
Fig. 3 is MCS schematic diagram of the present invention.
The specific embodiment
The present invention now is described in conjunction with the accompanying drawings and embodiments.
A kind of device for stablizing cylinder class tobacco shreds drying hot blast humidity as shown in Figure 2, this device comprises an air quantity control system and a hot blast temperature control system, increases a MCS between air quantity control system and hot blast temperature control system.
As shown in Figure 3, described MCS comprises that fresh wind-warm syndrome humidity detector and a steam by PID control module control apply control device.
Described fresh wind-warm syndrome humidity detector connects air quantity control system and hot blast temperature control system, and the temperature and humidity measure value of fresh wind is fed back to the PID control module.
Described steam applies control device and connects the hot blast temperature control system by vapor injection line, and this steam applies the steam applied amount of control device and controlled by the PID control module.Be provided with steam on the described vapor injection line and apply valve and steam-flow meter.
Described device for stablizing cylinder class tobacco shreds drying hot blast humidity, the control method of its steady heat rheumatism degree is: the controlling value that the PID control module is set fresh rheumatism degree is 85%RH (25 ℃), fresh wind air volume test value according to the air quantity control system feedback, and the temperature and humidity measure value of the fresh wind of fresh wind-warm syndrome humidity detector feedback, calculate the steam applied amount by the PID control module, and control steam applies control device and finishes steam and apply.
Case study on implementation one:
Ambient air conditions: 21 ℃ of temperature, humidity 47RH%.
The production process technology parameter: the controlling value that 100 ℃ of process heat air temperatures, fresh wind flow 290kg/h, mass flow 2000kg/h, drum rotation speed 12r/min, PID control module are set fresh rheumatism degree is 85%RH (25 ℃).
The production process data statistics: pipe tobacco entrance moisture average 19.8%, pipe tobacco moisture content of outlet average 13.0%, MCS steam applies mass flow average 2.79Kg/h, 131.3 ℃ of barrel temperature averages.
Case study on implementation two:
Ambient air conditions: 26 ℃ of temperature, humidity 72RH%.
The production process technology parameter: the controlling value that 100 ℃ of process heat air temperatures, fresh wind flow 290kg/h, mass flow 2000kg/h, drum rotation speed 12r/min, PID control module are set fresh rheumatism degree is 85%RH (25 ℃).
The production process data statistics: pipe tobacco entrance moisture average 20.1%, pipe tobacco moisture content of outlet average 13.1%, MCS steam applies mass flow average 0.5Kg/h, 132.4 ℃ of barrel temperature averages.
Claims (1)
1. be used for stablizing the control method of cylinder class tobacco shreds drying hot blast humidity, it is characterized in that: the device that this control method relates to comprises an air quantity control system and a hot blast temperature control system, between air quantity control system and hot blast temperature control system, be provided with a MCS, this MCS comprises by fresh wind-warm syndrome humidity detector of PID control module control and a steam and applies control device, and is described:
Fresh wind-warm syndrome humidity detector: connect air quantity control system and hot blast temperature control system, and the temperature and humidity measure value of fresh wind is fed back to the PID control module;
Steam applies control device: connect the hot blast temperature control system by vapor injection line, this steam applies the steam applied amount of control device and is controlled by the PID control module;
The controlling value that the PID control module is set fresh rheumatism degree is 85%RH (25 ℃), fresh wind air volume test value according to the air quantity control system feedback, and the temperature and humidity measure value of the fresh wind of fresh wind-warm syndrome humidity detector feedback, calculate the steam applied amount by the PID control module, and control steam applies control device and finishes steam and apply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210106393.5A CN103371428B (en) | 2012-04-12 | 2012-04-12 | For the control method of stable cylinder class tobacco shreds drying hot blast humidity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210106393.5A CN103371428B (en) | 2012-04-12 | 2012-04-12 | For the control method of stable cylinder class tobacco shreds drying hot blast humidity |
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| CN103371428A true CN103371428A (en) | 2013-10-30 |
| CN103371428B CN103371428B (en) | 2015-09-09 |
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| CN201210106393.5A Active CN103371428B (en) | 2012-04-12 | 2012-04-12 | For the control method of stable cylinder class tobacco shreds drying hot blast humidity |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104432453A (en) * | 2014-11-13 | 2015-03-25 | 山东中烟工业有限责任公司 | Method for controlling roller hot air temperature |
| CN104720092A (en) * | 2015-03-13 | 2015-06-24 | 红云红河烟草(集团)有限责任公司 | Temperature and humidity regulation and control method for cut tobacco cooling air and application of cut tobacco cooling air |
| CN106690390A (en) * | 2017-01-17 | 2017-05-24 | 龙岩烟草工业有限责任公司 | Temperature control method, temperature controller and roller device |
| CN109275936A (en) * | 2017-07-21 | 2019-01-29 | 红塔烟草(集团)有限责任公司 | Stablize the control device and method of cut-tobacco drier hot wind relative humidity |
| CN111938187A (en) * | 2020-08-25 | 2020-11-17 | 红塔烟草(集团)有限责任公司 | Fresh air temperature intelligent adjusting device and adjusting method for leaf moistening and feeding machine |
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| DE1432575A1 (en) * | 1961-11-23 | 1969-04-10 | British American Tabacco Compa | Process and device for the hot air treatment of cut tobacco |
| CN101491368A (en) * | 2009-03-12 | 2009-07-29 | 中国烟草总公司郑州烟草研究院 | Combined thermal transmission type micro roller drying device of tobacco |
| CN201683017U (en) * | 2010-03-30 | 2010-12-29 | 长沙赛普尔自动化工程设备有限公司 | Silk drying machine steaming and spraying device and silk drying machine |
| CN102166037A (en) * | 2011-04-02 | 2011-08-31 | 昆明船舶设备集团有限公司 | Tobacco block spiral conveying and moisture regaining loosening machine |
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2012
- 2012-04-12 CN CN201210106393.5A patent/CN103371428B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE1432575A1 (en) * | 1961-11-23 | 1969-04-10 | British American Tabacco Compa | Process and device for the hot air treatment of cut tobacco |
| CN101491368A (en) * | 2009-03-12 | 2009-07-29 | 中国烟草总公司郑州烟草研究院 | Combined thermal transmission type micro roller drying device of tobacco |
| CN201683017U (en) * | 2010-03-30 | 2010-12-29 | 长沙赛普尔自动化工程设备有限公司 | Silk drying machine steaming and spraying device and silk drying machine |
| CN102166037A (en) * | 2011-04-02 | 2011-08-31 | 昆明船舶设备集团有限公司 | Tobacco block spiral conveying and moisture regaining loosening machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104432453A (en) * | 2014-11-13 | 2015-03-25 | 山东中烟工业有限责任公司 | Method for controlling roller hot air temperature |
| CN104432453B (en) * | 2014-11-13 | 2016-05-11 | 山东中烟工业有限责任公司 | A kind of control method of hot blast drum temperature |
| CN104720092A (en) * | 2015-03-13 | 2015-06-24 | 红云红河烟草(集团)有限责任公司 | Temperature and humidity regulation and control method for cut tobacco cooling air and application of cut tobacco cooling air |
| CN106690390A (en) * | 2017-01-17 | 2017-05-24 | 龙岩烟草工业有限责任公司 | Temperature control method, temperature controller and roller device |
| CN109275936A (en) * | 2017-07-21 | 2019-01-29 | 红塔烟草(集团)有限责任公司 | Stablize the control device and method of cut-tobacco drier hot wind relative humidity |
| CN111938187A (en) * | 2020-08-25 | 2020-11-17 | 红塔烟草(集团)有限责任公司 | Fresh air temperature intelligent adjusting device and adjusting method for leaf moistening and feeding machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103371428B (en) | 2015-09-09 |
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