CN108236125A - A kind of baking silk method of cut tobacco over-dried cut tobacco amount after reduction EVA pneumatic conveying dryings - Google Patents
A kind of baking silk method of cut tobacco over-dried cut tobacco amount after reduction EVA pneumatic conveying dryings Download PDFInfo
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- CN108236125A CN108236125A CN201611204906.0A CN201611204906A CN108236125A CN 108236125 A CN108236125 A CN 108236125A CN 201611204906 A CN201611204906 A CN 201611204906A CN 108236125 A CN108236125 A CN 108236125A
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- cut tobacco
- moisture
- pneumatic conveying
- drying
- conveying drying
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/10—Roasting or cooling tobacco
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- Manufacture Of Tobacco Products (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a kind of baking silk methods of over-dried cut tobacco after reduction EVA pneumatic conveying dryings, include the following steps：Cut tobacco moisture regain step；Cut tobacco moisture regain outlet moisture measurement step；Pneumatic conveying drying entrance moisture measurement step；Pneumatic conveying drying step；Pneumatic drying outlet moisture measurement step；The second moisture content value measured by pneumatic conveying drying entrance moisture measurement step and the third moisture content value measured by pneumatic drying outlet moisture measurement step in this step, are fed back to pneumatic conveying drying step, for controlling Optimization of Gas Flow Drying by the first feedback control step.This method further includes the second feedback control step, in this step, the difference between the first moisture content value measured by the second moisture content value and cut tobacco moisture regain outlet moisture measurement step measured by calculated gas flow drying entrance moisture measurement step, cut tobacco moisture regain step will be fed back to after difference and setting value, for controlling the amount of water in cut tobacco moisture regain step.
Description
Technical field
The invention belongs to cigarette producing process technologies, and in particular to cut tobacco over-dried cut tobacco after a kind of reduction EVA pneumatic conveying dryings
The baking silk method of amount.
Background technology
Processing of the tobacco on primary processing line is to be processed production according to batch, and every batch of cut tobacco is through EVA gas
After stream is dry, the over-dried cut tobacco cut tobacco of constant weight will necessarily be generated, over-dried cut tobacco cut tobacco is inevitable in subsequent processing link
Processing can be caused to make broken, while over-dried cut tobacco cut tobacco enters cigarette, the generation of over-dried cut tobacco cut tobacco is significantly charred taste can serious shadow
The aesthetic quality of cigarette is rung, therefore, the over-dried cut tobacco amount of cut tobacco can not only improve the warp of tobacco processing after reduction pneumatic conveying drying
Ji benefit and the organoleptic quality that cigarette can be promoted.
The technological process of existing EVA pneumatic conveying dryings is cut tobacco after cut tobacco gets damp again process, by buffer storage and quantitative is fed
Material enters back into EVA600 pneumatic conveying dryings.Cut tobacco gets damp again and EVA600 pneumatic conveying dryings are two independent control units, by middle control
Instruction is started and is stopped.
The drying mode of EVA600 is to apply simulation water on material in first 3 minutes after punishment in advance is started in drying equipment,
Increase material moisture to reduce the quantity of dry head.If not applying simulation water, a large amount of dry head can be generated in process
Amount finds after applying simulation water that the quantity of over-dried cut tobacco significantly reduces, but can unavoidably bring portion simultaneously during the test
Divide dried material moisture excessive, even more than 16.0%, there is trend, tendency phenomenon, there are major quality risk, object after drying
Material moisture excessive (>=15.0%) will cause cigarette to go mouldy, and lose cigarette and suck value, and Sensory Quality of Cigarette presses state
Family's standard is determined as unqualified.It is existing to solve the drying mode over-dried cut tobacco application simulation aqueous mode of existing EVA600
This problem by having carried out network analysis research to pneumatic drying of cut tobacco Wiring technology, has found solution to this problem.
Invention content
The purpose of the present invention is reducing EVA600 pneumatic conveying drying over-dried cut tobacco amounts, existing EVA600 pneumatic conveying dryings pattern is solved
Though over-dried cut tobacco amount can achieve the purpose that reduce over-dried cut tobacco silk cut tobacco amount but may lead to trend, tendency cut tobacco using simulation water method
Appearance and the quality risk that brings, realize that improved EVA600 pneumatic conveying dryings can reach the reduction of cut tobacco over-dried cut tobacco amount
Purpose can simultaneously eliminate the quality risk that the unqualified cigarette product to go mouldy is brought.
It signs in this, the present invention provides a kind of baking silk method of over-dried cut tobacco after reduction EVA pneumatic conveying dryings, the method packets
Include following steps：
Cut tobacco moisture regain step in this step, sprays water to cut tobacco and/or sprays steam to improve cut tobacco moisture content；
Cut tobacco moisture regain outlet moisture measurement step in this step, measures the of the material in cut tobacco moisture regain step exit
One moisture content value；
Pneumatic conveying drying entrance moisture measurement step in this step, measures the second water of the material of pneumatic conveying drying inlet
Part value；
Pneumatic conveying drying step in this step, cut tobacco moisture content is reduced by pneumatic conveying drying process；
Pneumatic drying outlet moisture measurement step in this step, measures the of the material in pneumatic conveying drying step exit
Three moisture content values；
First feedback control step, in this step, by the second water measured by pneumatic conveying drying entrance moisture measurement step
Third moisture content value measured by part value and pneumatic drying outlet moisture measurement step feeds back to pneumatic conveying drying step, for controlling gas
Flow drying process,
It is characterized in that, the method further includes the second feedback control step, and in this step, calculated gas flow drying entrance
The second moisture content value measured by moisture measurement step and the first moisture content value measured by cut tobacco moisture regain outlet moisture measurement step it
Between difference, cut tobacco moisture regain step will be fed back to after difference and setting value, for controlling in cut tobacco moisture regain step plus water
Amount.
In pneumatic conveying drying step, can according to before pneumatic conveying drying step and after pneumatic conveying drying step dehydration rate,
Production season and the correction value of the production trade mark are modified the feed rate for entering pneumatic conveying drying step.
Cut tobacco get damp again step in, can with calculated gas flow dry entrance moisture measurement step measured by the second moisture content value from
It crosses and expects technological requirement moisture required time and the first moisture content value measured by cut tobacco moisture regain outlet moisture measurement step from punishment in advance
Difference between technological requirement moisture required time, difference and setting value is compared, with reference to the suction of different trade mark materials
It is moist revised after feed back to cut tobacco moisture regain step, with control cut tobacco moisture regain step amount of water.
In the fill process of pneumatic conveying drying step, the material of pneumatic conveying drying step can be entered by even distributor
Sectional uniform distribution.
It in the fill process of pneumatic conveying drying step, can rapidly be accumulated by baffle material, when solid accumulation arrives
After a certain amount of, started by photoelectric tube and fed.
Description of the drawings
Fig. 1 shows the flow of EVA pneumatic conveying dryings of the prior art.
Fig. 2 is the baking of cut tobacco over-dried cut tobacco amount after a kind of reduction EVA pneumatic conveying dryings according to an embodiment of the invention
The flow diagram of silk method.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Fig. 2 is the baking of cut tobacco over-dried cut tobacco amount after a kind of reduction EVA pneumatic conveying dryings according to an embodiment of the invention
The flow diagram of silk method.Shown in as schematically shown in Figure 2, reduction EVA a kind of according to one embodiment of present invention
The baking silk method of over-dried cut tobacco, includes the following steps after pneumatic conveying drying：
Cut tobacco moisture regain step in this step, sprays water to cut tobacco and/or sprays steam to improve cut tobacco moisture content；
Cut tobacco moisture regain outlet moisture measurement step in this step, measures the of the material in cut tobacco moisture regain step exit
One moisture content value；
Pneumatic conveying drying entrance moisture measurement step in this step, measures the second water of the material of pneumatic conveying drying inlet
Part value；
Pneumatic conveying drying step in this step, cut tobacco moisture content is reduced by pneumatic conveying drying process；
Pneumatic drying outlet moisture measurement step in this step, measures the of the material in pneumatic conveying drying step exit
Three moisture content values；
First feedback control step, in this step, by the second water measured by pneumatic conveying drying entrance moisture measurement step
Third moisture content value measured by part value and pneumatic drying outlet moisture measurement step feeds back to pneumatic conveying drying step, for controlling gas
Flow drying process；
Second feedback control step, in this step, second measured by calculated gas flow drying entrance moisture measurement step
The difference between the first moisture content value measured by moisture content value and cut tobacco moisture regain outlet moisture measurement step, by difference and setting value ratio
After feed back to cut tobacco moisture regain step, for control cut tobacco moisture regain step in amount of water.
In pneumatic conveying drying step, can according to before pneumatic conveying drying step and after pneumatic conveying drying step dehydration rate,
Production season and the correction value of the production trade mark are modified the feed rate for entering pneumatic conveying drying step.
In actual production, it can be combined using producing the trade mark as a control module, from each control parameter of cut tobacco moisture regain
Organic assembling is carried out with the technological parameter of pneumatic conveying drying, the control parameter of each control module is according to the production trade mark in production
Material characteristic is different.For example, in cut tobacco gets damp again step, can be dried measured by entrance moisture measurement step with calculated gas flow
The second moisture content value from cross expect measured by the time required to technological requirement moisture and cut tobacco moisture regain outlet moisture measurement step the
Difference of the one moisture content value between crossing the time required to expecting technological requirement moisture, difference and setting value is compared, with reference to not
With trade mark material hygroscopicity revised after feed back to cut tobacco moisture regain step, with control cut tobacco moisture regain step amount of water.
The control unit served as theme in this way with the trade mark has systematically carried out integrated control to cut tobacco moisture regain and pneumatic conveying drying
System, improves the control accuracy of system, reduces over-dried cut tobacco amount.
In the fill process of pneumatic conveying drying step, the material of pneumatic conveying drying step can be entered by even distributor
Sectional uniform distribution.In the prior art, the cut tobacco that material discharges from belt, which is fallen on, shakes on slot, discharges, causes in wave crest formula
Supplied materials it is uneven, in this way enter EVA600 drying equipments inside material also just it is uneven.Even distributor is installed on slot additional shaking,
Former wave crest formula discharging is made to be improved to entire cross section discharging, solves the problems, such as the material uniform feeding of process.
It in the fill process of pneumatic conveying drying step, can rapidly be accumulated by baffle material, when solid accumulation arrives
After a certain amount of, started by photoelectric tube and fed.In the prior art, the feeding manner of pneumatic conveying drying entrance is in electronics skin material
Band claims to restart charging after being paved on belt, and material is paved with the time on electronic belt scale belt and is up to 3-4 minutes, due into
The moisture of material is 22.5%, belongs to high moisture material, and moisture scatters and disappears rapidly in residence time, actually enters pneumatic conveying drying and sets
Standby internal material moisture must cause pneumatic drying of cut tobacco to do a large amount of increasings of nose heave amount in this way much smaller than technological standards requirement
Add.For this situation, cancel material material stand-by period on cut tobacco drying electronic scale belt, in order to ensure material charging
Stablize, install baffle additional in cut tobacco drying electronic scale feed opening, material is allowed to be accumulated rapidly in feed opening, be stacked into it is a certain amount of after,
Charging is started by the photoelectric tube in feed opening, so as to thoroughly solve the material stand-by period band on cut tobacco drying electronic scale belt
Carry out cut tobacco dry feed moisture loss problem because caused by the stand-by period is long.By improving, pneumatic conveying drying entrance is stabilized
Material moisture can make pneumatic conveying drying entrance material moisture reach technological standards requirement, convenient for pneumatic drying outlet in 1 minute
The control of material moisture effectively reduces the quantity of dry head.
By above corrective measure, the over-dried cut tobacco cut tobacco amount of pneumatic drying of cut tobacco is by the 179kg/ before improving batches of (leaves
Silk yield 3000kg/ batches), 16.5kg/ batches are reduced to, every batch of over-dried cut tobacco cut tobacco amount accounts for batch cut tobacco amount ratio and reduced by 5.97%
To 0.55%, in Dali, cigar mill achieves 400,000 casees cigarette of processing by existing production brand structure measuring and calculating and can save in year
2280000 yuan of economic benefit, at the same prevented the trend, tendency pipe tobacco being likely to occur in former air-flow drying method and the volume that goes mouldy generated
Smoke product significantly reduces product quality risk, has ensured consumer's interests to greatest extent.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (5)
1. the baking silk method of over-dried cut tobacco, the described method comprises the following steps after a kind of reduction EVA pneumatic conveying dryings：
Cut tobacco moisture regain step in this step, sprays water to cut tobacco and/or sprays steam to improve cut tobacco moisture content；
Cut tobacco moisture regain outlet moisture measurement step in this step, measures the first water of the material in cut tobacco moisture regain step exit
Part value；
Pneumatic conveying drying entrance moisture measurement step in this step, measures the second moisture content value of the material of pneumatic conveying drying inlet；
Pneumatic conveying drying step in this step, cut tobacco moisture content is reduced by pneumatic conveying drying process；
Pneumatic drying outlet moisture measurement step in this step, measures the third water of the material in pneumatic conveying drying step exit
Part value；
First feedback control step, in this step, by the second moisture content value measured by pneumatic conveying drying entrance moisture measurement step
Pneumatic conveying drying step is fed back to the third moisture content value measured by pneumatic drying outlet moisture measurement step, for air-flow to be controlled to do
Dry process,
It is characterized in that, the method further includes the second feedback control step, and in this step, calculated gas flow drying entrance moisture content
Between the first moisture content value measured by the second moisture content value and cut tobacco moisture regain outlet moisture measurement step measured by measuring process
Difference will feed back to cut tobacco moisture regain step after difference and setting value, for controlling the amount of water in cut tobacco moisture regain step.
2. such as claim 1 method, which is characterized in that in pneumatic conveying drying step, according to before pneumatic conveying drying step and air-flow
The correction value of dehydration rate, production season and the production trade mark after drying steps is to the feed rate into pneumatic conveying drying step
It is modified.
3. such as claim 1 method, which is characterized in that in cut tobacco gets damp again step, calculated gas flow drying entrance moisture measurement step
The second rapid measured moisture content value is from crossing the time required to expecting technological requirement moisture and cut tobacco moisture regain outlet moisture measurement step institute
Difference of the first moisture content value measured between crossing the time required to expecting technological requirement moisture, difference and setting value are compared
Compared with, with reference to different trade mark materials hygroscopicity revised after feed back to cut tobacco moisture regain step, to control cut tobacco moisture regain step
Amount of water.
4. method as claimed in claim 1, which is characterized in that in the fill process of pneumatic conveying drying step, made by even distributor
Obtain the sectional uniform distribution into the material of pneumatic conveying drying step.
5. method as claimed in claim 1, which is characterized in that in the fill process of pneumatic conveying drying step, pass through baffle object
The rapid accumulation of material, when solid accumulation to it is a certain amount of after, pass through photoelectric tube and start charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611204906.0A CN108236125B (en) | 2016-12-23 | 2016-12-23 | Cut tobacco drying method for reducing dry head and dry tail of cut tobacco dried by EVA airflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611204906.0A CN108236125B (en) | 2016-12-23 | 2016-12-23 | Cut tobacco drying method for reducing dry head and dry tail of cut tobacco dried by EVA airflow |
Publications (2)
| Publication Number | Publication Date |
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| CN108236125A true CN108236125A (en) | 2018-07-03 |
| CN108236125B CN108236125B (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611204906.0A Active CN108236125B (en) | 2016-12-23 | 2016-12-23 | Cut tobacco drying method for reducing dry head and dry tail of cut tobacco dried by EVA airflow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114601190A (en) * | 2022-03-21 | 2022-06-10 | 红塔烟草(集团)有限责任公司 | Method for regulating and controlling drying moisture of slice threads |
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| CN114601190A (en) * | 2022-03-21 | 2022-06-10 | 红塔烟草(集团)有限责任公司 | Method for regulating and controlling drying moisture of slice threads |
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| CN108236125B (en) | 2021-03-26 |
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