CN101254020A - Thread baking thread process control method - Google Patents
Thread baking thread process control method Download PDFInfo
- Publication number
- CN101254020A CN101254020A CNA2007101735626A CN200710173562A CN101254020A CN 101254020 A CN101254020 A CN 101254020A CN A2007101735626 A CNA2007101735626 A CN A2007101735626A CN 200710173562 A CN200710173562 A CN 200710173562A CN 101254020 A CN101254020 A CN 101254020A
- Authority
- CN
- China
- Prior art keywords
- stage
- control
- thread
- baking
- tobacco drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to a method for controlling the tobacco drying process, which is characterized in that the whole tobacco drying process is divided into a head stage, a middle stage, and a tail stage; the head stage adopts an adaptive learning temperature rising control method, a control system automatically adjusts the temperature in the next temperature rising according to the previous humidity control effect, and the low drum speed is adopted in the heat stage; the middle stage leads water parameters at an outlet into the control system, forecast PID control is adopted to feed back and correct to realize the automatic control for the temperature of the cylinder wall of a tobacco drying cylinder; the tail stage lowers the temperature of the tobacco drying cylinder in advance, closes a steam heater on the cylinder wall and a cyclic hot blast heater in advance, increases the air intake speed, reduces the drawing air speed, and accelerates the drum speed. The tobacco drying process controlling means has the advantages that the influence on the moisture content at the tobacco drying outlet caused by the nonlinearity and the large time delay during the original tobacco drying procedure control process is overcome, the anti-interference ability is strong, various changes of operation conditions can be adapted, and the control of the moisture content at the tobacco drying outlet can be led to achieve higher control precision.
Description
Technical field
The present invention relates to the correlative technology field that tobacco produces, specifically a kind of thread baking thread process control method.
Background technology
Throwing produces and to be divided into generally that the tobacco leaf preliminary treatment is reinforced, leaves storage, throwing, to mix with addition of fragrant, five links of storage silk, it is as follows that the baking silk is produced general flow: pipe tobacco enters baking silk tube by jigging conveyer from charging aperture, because baking silk tube tilts to install (with the about 3-5 of horizontal sextant angle °), baking silk tube, constantly moves down down pipe tobacco and slides into discharge end by the transmission device driven rotary by motor.When tobacco stream passes through to dry by the fire the silk tube, directly contact with Steam Heating face in the tube, pipe tobacco intensification, internal moisture are vaporized and drying.Steam regulation pressure can change the temperature of cylinder inner heating surface; Simultaneously, form hot-air flow, send in the tube, when normal operation, keep hot blast temperature constant by the control steam pressure by blower fan with the Steam Heating air.Hot-air flow is divided into two-way: the first via is introduced from the charging aperture of baking silk tube, and the flow direction of hot-air flow is identical with the pipe tobacco flow direction and contact realization thermal current hydrofuge drying with pipe tobacco, flow to the afterbody of pipe tobacco tube, enter air cleaner, after filtering, enter atmosphere by pulling out the wind blower fan.The second road hot-air flow is introduced from the baking silk tube port of export, directly enter the rotary screen cylindrical shell, mainly heat and blow dust on the rotary screen off, make rotary screen keep unimpeded constantly, and and the moisture higher hot blast of the first via mix, reveal to prevent that first via hot blast is long-pending,, pull out the wind blower fan and enter atmosphere then through air cleaner.
All adopt the traditional PID control pattern in the existing drying process control, the control block diagram as shown in Figure 1.Extraneous various factors disturbing influence is big because drying process is subjected to, control and response present the large time delay characteristic, and is often not high to baking silk outlet moisture content control accuracy in traditional PID control, and produces a large amount of dried pipe tobaccos at stub bar material tail, influences product quality.
Summary of the invention
The purpose of this invention is to provide a kind of thread baking thread process control method, solved because drying process is subjected to that extraneous various factors disturbing influence is big, control and response present the large time delay characteristic, often not high in traditional PID control to baking silk outlet moisture content control accuracy, and produce a large amount of dried pipe tobaccos at stub bar material tail, influence the problem of product quality.
For achieving the above object, the present invention has adopted following technical scheme:
The invention discloses a kind of thread baking thread process control method, it is characterized in that: the process control of whole baking silk is divided into head, middle part, afterbody three phases:
The head stage, be that drying process begins but the production phase of pipe tobacco no show drying process moisture content of outlet test point: adopt adaptive learning intensification control mode, automatically adjust the temperature that next time heats up by control system according to the effect of preceding moisture control, and adopt low drum speed in this stage;
The middle part stage, be that drying process moisture content of outlet test point detects behind the pipe tobacco production phase that this batch pipe tobacco all enters cut-tobacco drier: the moisture content of outlet parameter is incorporated into control system, adopts predictive PID Control to carry out feedback compensation to realize to a baking silk tube barrel temperature auto control;
The afterbody stage, be that pipe tobacco all enters cut-tobacco drier and detects production phase less than pipe tobacco to drying process moisture content of outlet test point: take to reduce in advance a baking silk tube temperature, close barrel steam heater and circulating air heater in advance, improve the air intake wind speed, reduce and pull out wind wind speed, quickening drum speed.
Wherein, the described head barrel temperature that progressively raises at twice in the stage; Afterbody is progressively accelerated drum speed at twice in the stage.
The invention has the advantages that: overcome that non-linear and large time delay has the variation that antijamming capability is strong, can adapt to various operating modes to the influence of baking silk moisture content of outlet in the former drying process control procedure, a baking moisture content of outlet has been controlled reached high control precision.
Description of drawings
Fig. 1 is the PID control model block diagram of adopting during traditional drying process is controlled.
Fig. 2 is the control block diagram of the self study technology that adopts of the present invention in conjunction with predictive PI D technology.
Fig. 3 is a drying process control sequential chart of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is further described.
A kind of thread baking thread process control method is described the feature of this patent from control model, hardware configuration, three aspects of control mode.
1. control model
Adopt the new control mode of self study technology in conjunction with predictive PI D technology, the control block diagram as shown in Figure 2.
New control model has overcome in the former drying process control procedure non-linear and large time delay to the influence of baking silk moisture content of outlet, make control system have the variation that antijamming capability is strong, can adapt to various operating modes, make the control of baking silk moisture content of outlet reach high control precision in fact.
2. hardware configuration
Aspect the control system hardware design, keep existing hardware configuration, add an independently controller OPTO22, specially in order to operation drying process control program, and new legacy system can be switched mutually at any time.
3. control mode
This patent will dry by the fire the silk process control and be divided into head, middle part, afterbody three phases, adopt different control modes in three phases respectively.
Control sequential chart and major parameter setting as shown in Figure 3:
The head stage:
The head stage is that drying process begins to produce but the production phase of pipe tobacco no show drying process moisture content of outlet test point.We adopt self study two stages intensification control mode in stage at head, automatically adjust the temperature in two stages in the two stages intensification next time according to the effect of preceding moisture control by control system, and at the head stage employing drum speed different, thereby realize reducing the purpose of doing a quantity with the ordinary production stage.
The middle part stage:
The middle part is that drying process moisture content of outlet test point detects behind the pipe tobacco production phase that this batch pipe tobacco all enters cut-tobacco drier in the stage.Can measure at middle part stage middle outlet moisture, we are incorporated into control system with moisture, adopt the predictive PID Control technology to carry out feedback compensation.Realization is to baking silk tube barrel temperature auto control.
The afterbody stage:
The afterbody stage is that pipe tobacco all enters cut-tobacco drier to the production phase of drying process moisture content of outlet test point detection less than pipe tobacco.Take to reduce in advance a baking silk tube temperature in stage at afterbody, close the circulating air heater, change air intake and pull out the wind wind speed, accelerate the mode of drum speed in two stages, thereby realize doing the reduction of mantissa's amount.
Claims (4)
1. thread baking thread process control method is characterized in that: the process control of whole baking silk is divided into head, middle part, afterbody three phases:
The head stage, be that drying process begins but the production phase of pipe tobacco no show drying process moisture content of outlet test point: adopt adaptive learning intensification control mode, automatically adjust the temperature that next time heats up by control system according to the effect of preceding moisture control, and adopt low drum speed in this stage;
The middle part stage, be that drying process moisture content of outlet test point detects behind the pipe tobacco production phase that this batch pipe tobacco all enters cut-tobacco drier: the moisture content of outlet parameter is incorporated into control system, adopts predictive PID Control to carry out feedback compensation to realize to a baking silk tube barrel temperature auto control;
The afterbody stage, be that pipe tobacco all enters cut-tobacco drier and detects production phase less than pipe tobacco to drying process moisture content of outlet test point: take to reduce in advance a baking silk tube temperature, close barrel steam heater and circulating air heater in advance, improve the air intake wind speed, reduce and pull out wind wind speed, quickening drum speed.
2. a kind of thread baking thread process control method according to claim 1 is characterized in that: the described head barrel temperature that progressively raises at twice in the stage.
3. a kind of thread baking thread process control method according to claim 1 is characterized in that: the drum speed in described head stage is 1/2 of a middle part stage drum speed.
4. a kind of thread baking thread process control method according to claim 1 is characterized in that: described afterbody is progressively accelerated drum speed at twice in the stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710173562A CN100584224C (en) | 2007-12-28 | 2007-12-28 | Cut tobacco drying control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710173562A CN100584224C (en) | 2007-12-28 | 2007-12-28 | Cut tobacco drying control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101254020A true CN101254020A (en) | 2008-09-03 |
| CN100584224C CN100584224C (en) | 2010-01-27 |
Family
ID=39889408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710173562A Active CN100584224C (en) | 2007-12-28 | 2007-12-28 | Cut tobacco drying control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100584224C (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102370240A (en) * | 2010-08-17 | 2012-03-14 | 福建中烟工业有限责任公司 | Method for transferring rotary drum cut leaf drying parameter |
| CN102488308A (en) * | 2011-12-14 | 2012-06-13 | 东华大学 | Advanced coordinated control system for moisture in cut tobacco dryer |
| CN102987538A (en) * | 2012-11-28 | 2013-03-27 | 龙岩烟草工业有限责任公司 | Air-flowing type dried tobacco water control method |
| CN103315382A (en) * | 2013-06-19 | 2013-09-25 | 浙江中烟工业有限责任公司 | Cascaded PID based charging moisture control device in tobacco shred processing technology |
| CN103336541A (en) * | 2013-06-27 | 2013-10-02 | 西安电炉研究所有限公司 | Temperature tracking protection control system for hot wind heating test device and control method thereof |
| CN103598668A (en) * | 2013-12-05 | 2014-02-26 | 福建中烟工业有限责任公司 | Tobacco leaf shredding processing method for controlling water ratio of material |
| CN103750528A (en) * | 2011-12-31 | 2014-04-30 | 贵州中烟工业有限责任公司 | Method for setting moisture content of cut tobacco drying inlet |
| CN104172457A (en) * | 2014-09-10 | 2014-12-03 | 四川烟草工业有限责任公司 | Tobacco shred dryer control system and method |
| CN104850151A (en) * | 2015-03-13 | 2015-08-19 | 江苏中烟工业有限责任公司 | Temperature control method for airflow type cut tobacco dryer combustion chamber |
| CN105595391A (en) * | 2016-01-12 | 2016-05-25 | 东华大学 | Advanced control method for comas tower dryer (CTD) |
| CN106072744A (en) * | 2016-08-09 | 2016-11-09 | 上海烟草集团有限责任公司 | A kind of drum-type cut-tobacco drier over-dried cut tobacco processing method |
| CN107966976A (en) * | 2017-12-06 | 2018-04-27 | 中南大学 | A kind of baking silk moisture control loop performance evaluation of data-driven and adjustment system |
| CN108236124A (en) * | 2016-12-23 | 2018-07-03 | 红塔烟草(集团)有限责任公司 | A kind of baking silk method for reducing the tower cut-tobacco drier stem over-dried cut tobacco amounts of Qinhuangdao SH984 |
| CN108236125A (en) * | 2016-12-23 | 2018-07-03 | 红塔烟草(集团)有限责任公司 | A kind of baking silk method of cut tobacco over-dried cut tobacco amount after reduction EVA pneumatic conveying dryings |
| CN108926027A (en) * | 2018-08-07 | 2018-12-04 | 福建中烟工业有限责任公司 | Utilize the method and device of the dry pipe tobacco of cylindrical drier |
| CN111620132A (en) * | 2020-04-29 | 2020-09-04 | 河南中烟工业有限责任公司 | Method and system for regulating and controlling tobacco shred feeding of cigarette making line |
| CN112051728A (en) * | 2020-08-27 | 2020-12-08 | 浙江中烟工业有限责任公司 | Cut-tobacco drying cylinder temperature control PID controller and control method |
| CN113243547A (en) * | 2021-05-11 | 2021-08-13 | 河北白沙烟草有限责任公司 | Automatic speed regulating method and system for tobacco shred perfuming roller |
| CN113747803A (en) * | 2019-04-03 | 2021-12-03 | 日本烟草国际股份有限公司 | Method and system for treating tobacco |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110580326B (en) * | 2019-08-14 | 2023-03-10 | 长沙学院 | Modeling method for tobacco shred drying intermediate process of tobacco shred drying machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US433666A (en) * | 1890-08-05 | Island |
-
2007
- 2007-12-28 CN CN200710173562A patent/CN100584224C/en active Active
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102370240A (en) * | 2010-08-17 | 2012-03-14 | 福建中烟工业有限责任公司 | Method for transferring rotary drum cut leaf drying parameter |
| CN102488308A (en) * | 2011-12-14 | 2012-06-13 | 东华大学 | Advanced coordinated control system for moisture in cut tobacco dryer |
| CN103750528B (en) * | 2011-12-31 | 2016-03-23 | 贵州中烟工业有限责任公司 | A kind of method setting baking silk inlet water score value |
| CN103750528A (en) * | 2011-12-31 | 2014-04-30 | 贵州中烟工业有限责任公司 | Method for setting moisture content of cut tobacco drying inlet |
| CN102987538B (en) * | 2012-11-28 | 2014-12-03 | 龙岩烟草工业有限责任公司 | Air-flowing type dried tobacco water control method |
| CN102987538A (en) * | 2012-11-28 | 2013-03-27 | 龙岩烟草工业有限责任公司 | Air-flowing type dried tobacco water control method |
| CN103315382A (en) * | 2013-06-19 | 2013-09-25 | 浙江中烟工业有限责任公司 | Cascaded PID based charging moisture control device in tobacco shred processing technology |
| CN103315382B (en) * | 2013-06-19 | 2015-04-15 | 浙江中烟工业有限责任公司 | Cascaded PID based charging moisture control device in tobacco shred processing technology |
| CN103336541B (en) * | 2013-06-27 | 2015-08-26 | 西安电炉研究所有限公司 | Hot-blast Heating test unit temperature track protection control system and control method thereof |
| CN103336541A (en) * | 2013-06-27 | 2013-10-02 | 西安电炉研究所有限公司 | Temperature tracking protection control system for hot wind heating test device and control method thereof |
| CN103598668A (en) * | 2013-12-05 | 2014-02-26 | 福建中烟工业有限责任公司 | Tobacco leaf shredding processing method for controlling water ratio of material |
| CN104172457A (en) * | 2014-09-10 | 2014-12-03 | 四川烟草工业有限责任公司 | Tobacco shred dryer control system and method |
| CN104850151B (en) * | 2015-03-13 | 2017-01-11 | 江苏中烟工业有限责任公司 | Temperature control method for airflow type cut tobacco dryer combustion chamber |
| CN104850151A (en) * | 2015-03-13 | 2015-08-19 | 江苏中烟工业有限责任公司 | Temperature control method for airflow type cut tobacco dryer combustion chamber |
| CN105595391A (en) * | 2016-01-12 | 2016-05-25 | 东华大学 | Advanced control method for comas tower dryer (CTD) |
| CN106072744A (en) * | 2016-08-09 | 2016-11-09 | 上海烟草集团有限责任公司 | A kind of drum-type cut-tobacco drier over-dried cut tobacco processing method |
| CN108236125A (en) * | 2016-12-23 | 2018-07-03 | 红塔烟草(集团)有限责任公司 | A kind of baking silk method of cut tobacco over-dried cut tobacco amount after reduction EVA pneumatic conveying dryings |
| CN108236124A (en) * | 2016-12-23 | 2018-07-03 | 红塔烟草(集团)有限责任公司 | A kind of baking silk method for reducing the tower cut-tobacco drier stem over-dried cut tobacco amounts of Qinhuangdao SH984 |
| CN107966976A (en) * | 2017-12-06 | 2018-04-27 | 中南大学 | A kind of baking silk moisture control loop performance evaluation of data-driven and adjustment system |
| CN107966976B (en) * | 2017-12-06 | 2019-07-02 | 中南大学 | A kind of baking silk moisture control loop performance evaluation of data-driven and adjustment system |
| CN108926027A (en) * | 2018-08-07 | 2018-12-04 | 福建中烟工业有限责任公司 | Utilize the method and device of the dry pipe tobacco of cylindrical drier |
| CN108926027B (en) * | 2018-08-07 | 2021-07-23 | 福建中烟工业有限责任公司 | Method and device for drying tobacco shreds by using drum dryer |
| CN113747803A (en) * | 2019-04-03 | 2021-12-03 | 日本烟草国际股份有限公司 | Method and system for treating tobacco |
| CN111620132A (en) * | 2020-04-29 | 2020-09-04 | 河南中烟工业有限责任公司 | Method and system for regulating and controlling tobacco shred feeding of cigarette making line |
| CN111620132B (en) * | 2020-04-29 | 2021-09-17 | 河南中烟工业有限责任公司 | Method and system for regulating and controlling tobacco shred feeding of cigarette making line |
| CN112051728A (en) * | 2020-08-27 | 2020-12-08 | 浙江中烟工业有限责任公司 | Cut-tobacco drying cylinder temperature control PID controller and control method |
| CN113243547A (en) * | 2021-05-11 | 2021-08-13 | 河北白沙烟草有限责任公司 | Automatic speed regulating method and system for tobacco shred perfuming roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100584224C (en) | 2010-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100584224C (en) | Cut tobacco drying control method | |
| CN101356992B (en) | Downstream type tobacco-dryer exit tobacco-shred water control method | |
| CN104172457B (en) | Tobacco leaf silk drying machine control method | |
| CN103284308A (en) | Energy-saving method and device for controlling moisture discharging of roller-type cut-tobacco dryer | |
| CN102415609B (en) | Process hot air circulating device for tobacco charging machine and control method for device | |
| CN102106597B (en) | Method and device for controlling moisture discharge of stable roller type shred dryer | |
| CN103238916B (en) | Method for reducing dry cut tobacco of drum cut tobacco dryer | |
| CN201967601U (en) | Automatic temperature control-type tea leaf dryer | |
| CN104264411B (en) | A kind of system according to the forming machine thermal efficiency improves the method for the forming machine thermal efficiency | |
| CN101319845A (en) | Laver piece hot-blast stove drying device with temperature self-compensation function | |
| CN1271957C (en) | Tobacco shreds drying and moisture moving control method | |
| CN208850665U (en) | One kind being used for tobacco sheet cigarette loosening steam conditioner hot blast temperature control device | |
| CN204987799U (en) | Hot -blast automatic temperature adjustment device of grain drying machine | |
| CN101480271B (en) | Method and device for carrying drum-type drying and accurate processing of tobacco shred | |
| CN205605852U (en) | Homogeneity knuckle can smoke damper plate structure | |
| CN207023224U (en) | The device of stable cut-tobacco drier hot blast relative humidity | |
| CN113261692A (en) | Heat pump tobacco leaf bulk curing barn with alternately operated air flows | |
| CN101485489B (en) | Method for accurately controlling damp-heat air in smoked sheet-loosing and device thereof | |
| CN201057779Y (en) | Concurrent rumble tobacco oven capable of reducing over-dried phenomena | |
| CN103032965A (en) | Intelligent constant temperature control system for coal hot air furnace of tea dryer | |
| CN206612197U (en) | Tobacco air-flow dries silk thread and its prewarming control system | |
| CN203302323U (en) | Device for improving humidity of process hot air and cut tobacco dryer | |
| CN201067077Y (en) | Intelligent tobacco leaf baking temperature and humidity controlling instrument | |
| CN105881798A (en) | Steam type casting machine | |
| CN208192105U (en) | A kind of ascending manner energy saving flue-cured tobacco-room |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |