CN102613680A - Moisture chain control method for tobacco shred manufacturing process - Google Patents
Moisture chain control method for tobacco shred manufacturing process Download PDFInfo
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- CN102613680A CN102613680A CN2012100848435A CN201210084843A CN102613680A CN 102613680 A CN102613680 A CN 102613680A CN 2012100848435 A CN2012100848435 A CN 2012100848435A CN 201210084843 A CN201210084843 A CN 201210084843A CN 102613680 A CN102613680 A CN 102613680A
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Abstract
A moisture chain control method for a tobacco shred manufacturing process includes two synchronous steps of adjustment based on moisture fluctuation of blended stems and shreds and adjustment based on moisture fluctuation of tobacco shreds at an HT (humidifying tunnel) inlet. Detection to moisture of stems and shreds before the stems and the shreds are blended is added, moisture of an HT joint and moisture of a stem and shred blending joint are detected, when the HT inlet tobacco shred moisture and stem and shred moisture in the two joints are abnormal, key parameters of other relevant work procedures at joints in front and rear of the two joints on a tobacco shred processing chain are quantitatively adjusted, effective front and rear feedback is realized, stability of shred blending moisture after the stems and the shreds are blended is guaranteed, and stability of technological parameters of a shred drying procedure is ensured.
Description
Technical field
The present invention relates to a kind of system leaf silk process moisture chain control method.
Background technology
System leaf silk process, promptly the sheet cigarette raw material after beating and double roasting and the alcoholization is processed as the finished cut tobacco process that can supply roll, and is the key link of cigarette processing.In this process, the dispensing tablet cigarette raw material behind the loosening and gaining moisture, successively behind reinforced, storage leaf, chopping, HT moisture regain, baking silk, mixing different substances together with auxiliary material such as stem is to mix silk, and rolls operation through the back entering of perfuming storage silk.Material moisture control is to guarantee to mix silk back finished cut tobacco moisture stabilization in the technology for making tobacco threds process, and then guarantees the key of product manufacturing quality.
Mix different substances together operation at the leaf line, the mixed silk moisture stabilization property of output is mixed different substances together the moisture of auxiliary materials such as frontal lobe silk and stem.At present; In the throwing process to the control of material moisture; Be primarily aimed at the main manufacturing procedure that influences leaf silk moisture; Comprise loosening and gaining moisture, reinforced, HT moisture regain, baking silk, through each operation unit control guarantee as far as possible each point output in the goods moisture stabilization, guarantee final material stability of moisture property.And mix different substances together a little at leaf silk, stem, do not have material moisture and detect and regulation measure.The problem that present leaf line moisture Control process exists is; Because the current fluid bed modes that adopt of stem dry more; To compare its water uniformity relatively poor with the leaf silk, when mixing different substances together the moisture of cut stem of operation when input and exist certain deviation even fluctuation big, although leaf silk moisture keeps relative stability; Certain deviation appears in the mixed silk moisture after will causing mixing different substances together, thereby influence rolls.
On the other hand, material is in leaf line processing circulation process, and the moisture of each process links all can influence the index and the parameter of operation up and down; The throwing control procedure does not take into full account the interaction relationship of different inter process moisture Control factors at present; Each operation adopts relatively independent moisture regulation mode, when HT inlet moisture in cut tobacco is unusual, only through the key parameter in the adjustment drying process; Although can stablize baking silk outlet leaf silk moisture; But because drying process is the crucial process that influences leaf silk sense organ smoking quality, the baking silk technological parameter amplitude of accommodation is excessive, and it is unstable to be prone to cause drying by the fire posterior lobe silk smoking quality.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art and the control to material moisture is provided in a kind of throwing process, and the stable system leaf silk process moisture chain control method of baking posterior lobe silk smoking quality.
A kind of system leaf silk process moisture chain control method comprises two steps of carrying out synchronously as follows:
A, based on the adjusting of mixing moisture of cut stem fluctuation:
The moisture of cut stem that increases before mixing detects, and the moisture of cut stem that detects before mixing different substances together in real time draws the departure Δ w2 that mixes moisture of cut stem and moisture of cut stem center for standard value, and when deviation appearred in moisture of cut stem, feedback regulation was following:
1. when Δ w2≤± 0.5: feedback Δ w2 calculates a baking moisture content of outlet regulated quantity Δ w1, Δ w1=-a* Δ w2 (a=G to drying process
2/ G
1, G
1Be leaf silk weight, G
2Be stem weight), feedback Δ w1 regulates baking silk outlet leaf silk moisture setting value to drying process;
2. when 0.5%＜Δ w2≤1% and-0.5%＜Δ w2≤-1%: 1. carry out set by step; Regulate baking silk outlet leaf silk moisture setting value; Regulated quantity-(d is a coefficient to d* Δ w1 to calculation of steam pressure simultaneously; D by variable HT steam pressure and dependent variable HT after the data that draw of moisture through single factor multilevel test method confirm that through linear match Δ w1 is the baking silk moisture content of outlet regulated quantity that 1. step is calculated) the steam pressure regulated quantity is fed back to HT steam regulation pressure;
3. when Δ w2＞± 1%,
When having exceeded moisture of cut stem standard franchise: then change stem;
When not exceeding moisture of cut stem standard franchise: 2. regulate set by step, will dry by the fire silk moisture content of outlet regulated quantity Δ w1 simultaneously and feed back to loose operation adjusting water addition ratio example;
B, based on the adjusting of HT inlet moisture in cut tobacco fluctuation:
Through detecting the departure Δ x that HT inlet moisture in cut tobacco draws HT inlet moisture and standard water branch center value, feedback regulation is following:
1. when Δ x＞± 0.5%; At first feedback regulation amount is regulated the water addition ratio example to loose operation; Regulated quantity is-(coefficient b is relevant with the hygroscopicity of prescription tobacco leaf for b* Δ x; Need carry out variable " water addition ratio example " and the multilevel experiment of single factor of dependent variable " loose moisture content of outlet " line linearity of going forward side by side returns to confirm); Feedback regulation amount is then regulated hot blast temperature or hot blast air quantity to drying process, and regulated quantity is c* Δ x (c is a coefficient, and is definite by linear fit after single factor multilevel test of variable " HT enter the mouth moisture " and dependent variable " hot blast temperature or hot blast air quantity ");
2. when Δ x≤± 0.5%; Feedback regulation amount is regulated hot blast temperature or hot blast air quantity to drying process; Regulated quantity is c* Δ x (c is a coefficient, is confirmed by linear fit after single factor multilevel test of variable " HT enter the mouth moisture " and dependent variable " hot blast temperature or hot blast air quantity ").
Adopt such scheme; Before having increased stem and mix, the present invention, detects, when enter the mouth moisture in cut tobacco, moisture of cut stem of the HT of these two nodes occurs when unusual through HT is mixed two nodes with stem to the detection of moisture of cut stem; Respectively the key parameter of other interdependent node operation of front and back on the leaf silk machining chain is quantitatively adjusted; Feedback before and after realizing effectively guarantees that leaf silk, stem mix different substances together the back and mix silk stability of moisture property, guarantees the stable of drying process technological parameter simultaneously.
In sum; The present invention has taken into full account the interaction relationship of each inter process moisture Control factor of throwing, and the moisture fluctuation of mixing two node operations to HT and stem is through the classification feedback regulation of relevant critical process before and after on the leaf line moisture chain; The finished product that has effectively guaranteed output mixes the silk moisture stabilization; Simultaneously can guarantee the drying process parameter stability, between effectively promoting batch or batch in moisture Control stability, promoted throwing procedure quality control ability.
Description of drawings
Fig. 1 is moisture chain control sketch map of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, specify a kind of specific embodiment of making leaf silk process moisture chain control method.
Embodiment:
Application apparatus is a SH623 thin plate cut-tobacco drier; This cut-tobacco drier serves as the control desired value with baking silk moisture content of outlet setting value, is divided into input parameter with the HT inlet water, the preceding aperture that feeds back to the automatic calculation control barrel of PLC heating steam valve; To dry by the fire the output valve of back moisture in cut tobacco detected value; After feed back to PLC, regulate again, automatically guarantee that a baking silk moisture content of outlet conforms to setting value.These type characteristics are, the barrel temperature is a main contral parameter, and the moisture set point change will cause the barrel variations in temperature.System leaf silk process comprises successively that tobacco leaf unpacks, loose, premix, reinforced, leaves storage, chopping, HT, baking silk, cold silk, Ye Sizhu are claimed, mix different substances together and process such as perfuming; This method has increased stem and has mixed preceding detection to moisture of cut stem; To the water content detection of HT and stem being mixed two nodes; When the HT of these two nodes inlet moisture in cut tobacco, moisture of cut stem occur when unusual, respectively the key parameter of other interdependent node operation before and after on the leaf silk machining chain is quantitatively adjusted, realize effectively before and after feedback; Guarantee that leaf silk, stem mix different substances together the back and mix silk stability of moisture property, guarantee the stable of drying process technological parameter simultaneously.
Be example with this certain brand below, it is 12.5 ± 0.5% that this brand requires to mix silk moisture.The barrel temperature is 155 ± 5 ℃.
A, based on the control method of mixing moisture of cut stem fluctuation:
Regulate purpose: eliminate the moisture of cut stem fluctuation to mixing the influence of silk moisture, reduce the temperature fluctuation of baking silk barrel simultaneously.
The moisture of cut stem that increases before mixing different substances together detects, and the moisture of cut stem that detects before mixing different substances together in real time draws the departure Δ w2 that mixes moisture of cut stem and moisture of cut stem center for standard value, and when deviation appearred in moisture of cut stem, feedback regulation was following:
1. work as Δ w2=0.3, Δ w2≤± 0.5:
Calculate baking silk moisture content of outlet regulated quantity Δ w1; Δ w1=-a* Δ w2=-0.105 (wherein certain brand a==0.35 is together following), it is w=13.0-0.105=12.895 that feedback Δ w1 regulates leaf silk moisture setting value to drying process; When being corresponding moisture of cut stem 12.5% (13.0 leaf silk moisture content of outlet setting value); Through the parameter of the corresponding adjustment drying process of Δ w1,, guarantee to mix the silk moisture stabilization with compensation moisture of cut stem deviation; After the adjustment, baking silk moisture content of outlet detected value is 12.91%, and this moment, the barrel temperature rose to 158.47 degree by 155.6,0.87 degree that raise, and mixing silk moisture is 12.53%.
2. work as Δ w2=-0.8 ,-0.5%＜Δ w2≤-1%:
Calculate baking silk moisture content of outlet regulated quantity Δ w1; Δ w1=-a* Δ w2=0.28 will feed back Δ w1=0.28 to drying process, and regulating baking leaf silk moisture content of outlet setting value is w=13.0+0.28=13.28; After the adjustment; Baking silk moisture content of outlet detected value is 13.27%, and the barrel temperature drops to 152.9 degree by 155.4, and 0.87 degree has descended; Mixing silk moisture is 12.53%.
Calculation of steam pressure regulated quantity-d* Δ w1=0.20 (0.1MPa of unit) (d=0.71; D by variable HT steam pressure and dependent variable HT after the data that draw of moisture through single factor multilevel test method confirm through linear match; Δ w1 is a step baking silk moisture content of outlet regulated quantity 1.) the steam pressure regulated quantity is fed back to HT steam regulation pressure; After transferring to 0.57MPa by 0.55, the barrel temperature rises to 155.2 degree, through-the corresponding adjustment of d* Δ w1 HT parameter; Dehydrating amount and barrel temperature to keep the baking silk are constant basically, prevent because barrel influence baking too high or too low for temperature yarn quality; After the adjustment, baking silk moisture content of outlet detected value is 13.28%, and mixing silk moisture is 12.52%
3. when Δ w2＞± 1%,
Exceed this factory's moisture of cut stem standard franchise, changed stem production;
B, based on the adjusting of HT inlet moisture in cut tobacco fluctuation:
Regulate purpose:, guarantee that the temperature control of this batch tube in acceptability limit, stablizes the cigarette organoleptic quality in the qualified satisfactory while of final moisture content.
Draw the departure Δ x of HT inlet moisture and standard water branch center value through the HT inlet moisture in cut tobacco that detects, feedback regulation is following:
In this example, HT inlet moisture standards is a central value with 21.5%, and corresponding barrel temperature fluctuates in 155 ± 1 degree scopes, and it is 22.2% o'clock that the HT inlet water divides detected value, and corresponding barrel temperature is fluctuation in 160 ± 1 degree scopes, the barrel temperature exceeding standard;
1. feed back forward: Δ x=22.2%-21.5%=0.7%＞0.5%, the feedback regulation amount is regulated the water addition ratio example to loose operation, and regulated quantity is-b* Δ x=-0.54 (coefficient b=0.773; B is relevant with the hygroscopicity of prescription tobacco leaf; Need carry out variable " water addition ratio example " and the multilevel experiment of single factor of dependent variable " loose moisture content of outlet " line linearity of going forward side by side returns to confirm), calculate feedback through PLC, the water addition ratio example is dropped to 6.26% by 6.8% after; After the adjustment; HT inlet moisture becomes 21.6%, guarantee following batch stable, through the parameter of-loose operation of the corresponding adjustment of b* Δ x; Keep other parameter constant of system leaf section process, effectively weaken HT inlet moisture batch between fluctuation;
2. feed back backward: Δ x=0.7, feedback regulation is regulated hot blast temperature to drying process; Regulated quantity is c* Δ x=3.97 (c=5.672; C by single factor multilevel test of variable " HT enter the mouth moisture " and dependent variable " hot blast temperature or hot blast air quantity " after linear fit confirm), will dry by the fire the silk hot blast temperature and be adjusted to 113 degree by 109, make the barrel temperature drop to 156 and spend by 160 degree; Through the parameter of the loose operation of the corresponding adjustment of c* Δ x, keep baking silk moisture content of outlet and barrel temperature stabilization.
Be successfully applied to cigar mill's throwing link Process Control System through this method; Realized the proactive accurate control of throwing overall process moisture; Mix silk moisture fluctuation range by original ± 0.3% drop to ± 0.1%; Baking silk barrel temperature qualified rises to more than 99% by original 77%, and whole line Sigma level rises to 3.9 by 2.8, and product procedure quality control ability significantly promotes.
Claims (1)
1. make leaf silk process moisture chain control method for one kind, it is characterized in that: comprise two steps of carrying out synchronously as follows:
A, based on the adjusting of mixing moisture of cut stem fluctuation:
The moisture of cut stem that increases before mixing detects, and the moisture of cut stem that detects before mixing different substances together in real time draws the departure Δ w2 that mixes moisture of cut stem and moisture of cut stem center for standard value, and when deviation appearred in moisture of cut stem, feedback regulation was following:
1. when Δ w2≤± 0.5: feedback Δ w2 calculates a baking moisture content of outlet regulated quantity Δ w1, Δ w1=-a* Δ w2 (a=G to drying process
2/ G
1, G
1Be leaf silk weight, G
2Be stem weight), feedback Δ w1 regulates baking silk outlet leaf silk moisture setting value to drying process;
2. when 0.5%＜Δ w2≤1% and-0.5%＜Δ w2≤-1%: 1. carry out set by step; Regulate baking silk outlet leaf silk moisture setting value; Regulated quantity-(d is a coefficient to d* Δ w1 to calculation of steam pressure simultaneously; D by variable HT steam pressure and dependent variable HT after the data that draw of moisture through single factor multilevel test method confirm that through linear match Δ w1 is the baking silk moisture content of outlet regulated quantity that 1. step is calculated) the steam pressure regulated quantity is fed back to HT steam regulation pressure;
3. when Δ w2＞± 1%,
When having exceeded moisture of cut stem standard franchise: then change stem;
When not exceeding moisture of cut stem standard franchise: 2. regulate set by step, will dry by the fire silk moisture content of outlet regulated quantity Δ w1 simultaneously and feed back to loose operation adjusting water addition ratio example;
B, based on the adjusting of HT inlet moisture in cut tobacco fluctuation:
Through detecting the departure Δ x that HT inlet moisture in cut tobacco draws HT inlet moisture and standard water branch center value, feedback regulation is following:
1. when Δ x＞± 0.5%; At first feedback regulation amount is regulated the water addition ratio example to loose operation; Said regulated quantity is-b* Δ x (coefficient b is relevant with the hygroscopicity of prescription tobacco leaf, need carry out variable " water addition ratio example " and the multilevel experiment of single factor of dependent variable " loose moisture content of outlet " line linearity of going forward side by side and return definite);
Feedback regulation amount is then regulated hot blast temperature or hot blast air quantity to drying process, and said regulated quantity is c* Δ x (c is a coefficient, and is definite by linear fit after single factor multilevel test of variable " HT enter the mouth moisture " and dependent variable " hot blast temperature or hot blast air quantity ");
2. when Δ x≤± 0.5%; The feedback regulation amount is regulated hot blast temperature or hot blast air quantity to drying process; Regulated quantity is c* Δ x (c is a coefficient, is confirmed by linear fit after single factor multilevel test of variable " HT enter the mouth moisture " and dependent variable " hot blast temperature or hot blast air quantity ").
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| CN103202528A (en) * | 2013-04-10 | 2013-07-17 | 湖南中烟工业有限责任公司 | Cut lamina drying control method and cut lamina drying system based on feedforward and feedback of HT moisture compensation |
| CN103222673A (en) * | 2013-05-06 | 2013-07-31 | 江苏中烟工业有限责任公司徐州卷烟厂 | Moisture control method for airflow cut-tobacco drier |
| 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 |
| CN103859570A (en) * | 2012-12-13 | 2014-06-18 | 山东中烟工业有限责任公司青岛卷烟厂 | Method for improving percent of pass of cut stem moisture by controlling added water of stem moistening machine |
| CN104770844A (en) * | 2015-03-05 | 2015-07-15 | 云南中烟工业有限责任公司 | Method for improving cut stem blending accuracy |
| CN106054834A (en) * | 2016-06-17 | 2016-10-26 | 河南中烟工业有限责任公司 | Tobacco flake quality control method and system based on loosing and conditioning |
| 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 |
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| CN103859570B (en) * | 2012-12-13 | 2015-09-09 | 山东中烟工业有限责任公司青岛卷烟厂 | The method of cutting rear moisture of cut stem qualification rate is improved by controlling terrier machine amount of water |
| CN103859570A (en) * | 2012-12-13 | 2014-06-18 | 山东中烟工业有限责任公司青岛卷烟厂 | Method for improving percent of pass of cut stem moisture by controlling added water of stem moistening machine |
| CN103202528A (en) * | 2013-04-10 | 2013-07-17 | 湖南中烟工业有限责任公司 | Cut lamina drying control method and cut lamina drying system based on feedforward and feedback of HT moisture compensation |
| CN103222673B (en) * | 2013-05-06 | 2015-05-13 | 江苏中烟工业有限责任公司徐州卷烟厂 | Moisture control method for airflow cut-tobacco drier |
| CN103222673A (en) * | 2013-05-06 | 2013-07-31 | 江苏中烟工业有限责任公司徐州卷烟厂 | Moisture control method for airflow cut-tobacco drier |
| 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 |
| CN104770844A (en) * | 2015-03-05 | 2015-07-15 | 云南中烟工业有限责任公司 | Method for improving cut stem blending accuracy |
| CN106054834A (en) * | 2016-06-17 | 2016-10-26 | 河南中烟工业有限责任公司 | Tobacco flake quality control method and system based on loosing and conditioning |
| CN106054834B (en) * | 2016-06-17 | 2018-05-25 | 河南中烟工业有限责任公司 | A kind of smoked sheet method of quality control and system based on loosening and gaining moisture |
| 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 |
| CN108936778A (en) * | 2018-08-27 | 2018-12-07 | 红塔烟草(集团)有限责任公司 | A kind of cigarette primary processing process process weight control method |
| CN108936778B (en) * | 2018-08-27 | 2021-05-11 | 红塔烟草(集团)有限责任公司 | Weight control method for cigarette shred manufacturing process procedure |
| CN110946313A (en) * | 2019-12-12 | 2020-04-03 | 河南中烟工业有限责任公司 | Method and system for controlling water content of outlet of cut tobacco drying process |
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Application publication date: 20120801 |