CN104161300B - A kind of papermaking-method reconstituted tobaccos optimizes coating process - Google Patents
A kind of papermaking-method reconstituted tobaccos optimizes coating process Download PDFInfo
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- CN104161300B CN104161300B CN201310230216.2A CN201310230216A CN104161300B CN 104161300 B CN104161300 B CN 104161300B CN 201310230216 A CN201310230216 A CN 201310230216A CN 104161300 B CN104161300 B CN 104161300B
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Abstract
The invention belongs to cigarette industry reconstituted tobacco technical field, especially by optimal control coating fluid reflux technique flow process, in conjunction with regulation concentrated solution concentration method, reach in production process after spreading rate and coating that active ingredient in product is stable, the papermaking-method reconstituted tobaccos technique of the potent fruit of concordance.The present invention is the concentration by regulating concentrated solution, controls the coating fluid concentration prepared, and reduces the use thickening water, it is ensured that the stable homogeneous of final coating fluid；Again by doses on stable coating fluid, control applicator roll line pressure, substrate moisture, some known control processes such as coating fluid temperature, according to the amount of coating fluid backflow, online calculates product papermaking-method reconstituted tobaccos spreading rate, stablizes the quality of paper-making method reconstructed smoke product, controlling stable, effect is notable.It provides the benefit that: can be online spreading rate detected, grasp in time spreading rate situation of change in production process, and corresponding situation of change made adjustment in time, thus ensure the stability of same batch products.
Description
Technical field
The invention belongs to cigarette industry reconstituted tobacco technical field, especially by optimal control coating fluid reflux technique flow process,
In conjunction with regulation concentrated solution concentration method, reach in production process after spreading rate and coating active ingredient in product stable, consistent
The papermaking-method reconstituted tobaccos technique of the potent fruit of property.
Background technology
Reconstituted tobacco is by materials such as the offal produced in cigarette processing process, broken stalk, fragments, process through two step method,
Recombination is processed into lamellar or thread reconstituted tobacco product (being also reconstituted tobacoo).Known wet paper manufacturing method reproduces cigarette
Leaf produces and has continued to use traditional papermaking technology, by tobacco material (cabo, offal, tobacco powder, waste/hypo-tobacco leaf etc.)
Soaking extraction in advance, extract is used for preparing reuse coating fluid (extractum), and after sizing slurry of quenching process, starching is to wet type papermaking
Captain's net, processes through dehydration, squeezing, drying cylinder, makes the substrate of mass dryness fraction about 75%, then reduces in substrate positive and negative dip-coating
Coating fluid drying and moulding are paper web shape reconstituted tobacco.Reconstituted tobacco plays reducing tar and reducing harm, effectively adjustment cigarette product physics and chemistry
Performance important function.Reconstituted tobacco control of product quality content includes that substrate is manufactured paper with pulp and stoving process, coating fluid preparation and painting
Cloth technique etc..On the one hand, substrate manufacture paper with pulp and dry, coating fluid preparation with coating process to material quality and slurrying, manufacture paper with pulp
Equipment and technology equipment degree of dependence is higher, and on the other hand, coating process is different, directly influences spreading rate and coating
In rear product, active ingredient is stable, concordance, and these indexs are the important contents that reconstituted tobacco manufacturer must control.
In conventional wet papermaking coating technique, coating fluid used mostly is the coating of stable homogeneous, and coating concentration regulation can be passed through
Add the method such as coating or dilution water control and stablize coating fluid concentration.But use of reconstituted tobacco substrate coating process is soaked more
Coating method, it is particular in that:
(1) the material component at least three kinds of mixing in coating fluid, a portion is from the extract after concentration, additionally also
Being added with at least two kinds of flavor matter raw materials, in many components coating fluid dip coating process, different component raw materials immerse substrate quilt
During absorption, speed there are differences, and when recycling coating fluid, in final products, reality adheres to coating active ingredient with setting value not
Identical；
(2), without in the coating fluid of allotment under temperature, variable concentrations, each component is evaporation capacity difference in allotment and drying course
Bigger；
(3) soaking coating method is to increase coating weight, has a large amount of coating fluid to reflux, and backflow coating fluid mixes with newly added coating fluid
Recycling after conjunction.Backflow coating fluid is compared with new coating fluid, and in addition to there is the more problem of impurity, outstanding problem is
Backflow coating fluid, because the substrate described in (1) is to different component raw material absorption rate differences, causes the backflow after repeatedly circulating
Coating fluid there are the increasing trend of effective constituent difference compared with newly added coating fluid.
Known backflow coating fluid is directly to pump after backflow coating fluid impurity screening with newly added coating fluid hybrid mode
To freshly prepared coating fluid holding vessel, after stirring, it is pumped to coating head dip-coating substrate (systemic circulation with freshly prepared coating fluid
Reflux type), it is disadvantageous in that: owing to holding vessel volume is relatively big, coating based on this systemic circulation reflux type
Technique, coating fluid becomes component ratio in continuous cyclic process and increasingly deviates setting value, and pole is unfavorable for batch products
Steady quality is homogeneous, even if being the most constantly automatically adjusted coating fluid concentration, in conjunction with on-line monitoring regulation speed,
Substrate is quantitatively and moisture；Automatically control the numbers such as coating weight, applicator roll line pressure, coating fluid temperature；And reflux according to coating fluid
Amount, automatically controls the measures such as spreading rate, is also difficult to ensure in card finished product and is coated with composition stable uniform, before the most single batch products
Back segment quality difference is different.If different component material rates can be measured in holding vessel coating fluid real-time and accurately and add
Supplement, it is possible to solve described problem, but actually because of in holding vessel coating fluid be a dynamic systemic circulation process, accurately
Measure extremely difficult；On the other hand, the most also there is no different component raw materials in the citable coating fluid of measurement real-time
Ratio, and control different component raw material timesharing addition technology.
Chinese invention patent " a kind of reconstituted tobacoo secondary coating and coating fluid reflow method " (application number:
201110350243.4) only address backflow coating fluid I and II cyclonic separation and foam adds the circulation profit of coating fluid after purification
With, do not relate to concrete backflow coating fluid and newly join the contents such as coating fluid mixing point and hybrid mode；Patent of invention " cigarette
Grass thin slice coating fluid filtration system " technical scheme disclosed in (application number: 200820241034.X) is: at receiver and
Being provided with filter and transition tank between applicator roll, conveying pipeline one end is arranged on receiver bottom, its other end by pump with
Filter upper end is connected, and the conveying pipeline connected from filter lower end goes directly transition tank, and the feeder sleeve of filtering tank lower end leads to
Toward applicator roll, the conveying pipeline being connected with filter is provided with a conveying arm being connected with transition tank；Patent of invention
Step disclosed in " the purification technique of coating fluid during production of reconstituted tobacco through paper " (application number: 201110148386.7)
It is: coating fluid unnecessary on coating machine is back to be coated with in tank, with tank on the spot the coating fluid supplied by blend tank and converges, tank
Middle coating fluid returns recycling in tank via after being coated with the horizontal screw machine purified treatment that tank on the spot is connected.Being coated with tank on the spot is
Coating machine supply coating fluid, not only fills the coating fluid supplied by blend tank in tank, the most constantly collect and reflux from coating machine
The coating fluid got off, so that this part coating fluid is recycled.So backflow coating fluid is shelled from chip base containing a lot
The materials such as the fiber fines fallen and calcium carbonate, long time integration can make coating fluid become viscous.It is being coated with on the spot outside tank side
Put a horizontal screw machine, make the coating fluid in tank on the spot constantly via horizontal screw machine circular treatment, then the coating fluid in tank can be made to protect
Holding viscosity balance, the quality stability of improving product, it is ensured that being smoothed out of whole production process, in the content of this patent
Mainly emphasizing the coating fluid of backflow is carried out purified treatment, whether the coating fluid clearly not processed all is forced
Preferentially carry out reuse.
Henan Cigarette Industrial Tobacco Slice Co., Ltd. has applied for entitled " a kind of producing the coating of papermaking-method reconstituted tobaccos also
Former technique " patent of invention, application number: 03142804.5 applying date: 2003-06-138, this disclosure of the invention one
Planting the coating reducing process producing papermaking-method reconstituted tobaccos, the extract of raw material is coated on substrate several times, fragrant-inducing property
Material or other low boiling additive can add at corresponding coating stage.The present invention uses and is repeatedly coated with reducing process,
Be conducive to controlling and ensureing coating weight, add the precision of coating；Thermostability according to additive is different, and adjustable adds
Adding the interpolation time of agent, position, each composition is more evenly distributed, more effectively on substrate.Technical process is complex, right
Upstream and downstream production technology proposes with many control requirements, it is desirable to provide the coating fluid feeding system that two sets are above, increases and is coated with
The influence factor of cloth process control, is unfavorable for that the stability of final products controls.
Summary of the invention
It is an object of the invention to for the proposed problem of background technology, disclose the control spreading rate of a kind of system and coating fluid relatively
Coating process is optimized for the homogeneous papermaking-method reconstituted tobaccos of distribution in final products reconstituted tobacco.
Papermaking-method reconstituted tobaccos of the present invention optimizes coating process, the steps include:
A. according to the concentration requirement of product concentrated solution, this concentration value is set as that vaporizer finally goes out the concentration of liquid, and passes through
Vaporizer goes out liquid densitometer and carries out on-line monitoring；
B. vaporizer finally goes out liquid and is positioned in concentrated solution holding tank, is kept stirring for device and is in stirring, it is to avoid concentrated solution exists
Holding tank V01 forms precipitation；
C., during coating fluid preparation, concentrated solution delivery pump is used to pump in coating fluid preparing tank by the concentrated solution in concentrated solution holding tank,
In coating fluid preparing tank, coating fluid is prepared, and after stirring, use coating fluid delivery pump, to coating fluid just
Feed flow in ground tank；
D. coating fluid is after coating machine is coated with, and carries out buffering and stand, by determining of scum cock valve in being back to U-tube
Phase opens and closes, and removes and is deposited on the impurity bottom U-tube.Realize dynamic remove impurity so that whole system is in one
Dynamic equilibrium；
E. coating fluid is after remove impurity and screening process, and returns in coating fluid filtering tank, and coated liquid backflow variable frequency pump pump is to being coated with
Cloth liquid tank on the spot.
Described U-shaped tank connects circular vibrating screen.
Described coating fluid delivery pump is variable frequency pump.
The present invention is the concentration by regulating concentrated solution, controls the coating fluid concentration prepared, and reduces and thickens making of water
With, it is ensured that the stable homogeneous of final coating fluid；Again by doses on stable coating fluid, control applicator roll line pressure, substrate
Moisture, coating fluid temperature etc. some known control processes, according to the amount of coating fluid backflow, online calculating is produced
Product papermaking-method reconstituted tobaccos spreading rate, stablizes the quality of paper-making method reconstructed smoke product, controls stable, and effect is notable.It has
Benefit effect is: can be online spreading rate detected, grasp in time spreading rate situation of change in production process, and to phase
The situation of change answered is made adjustment in time, thus ensures the stability of same batch products.
Secondly, to combining above-mentioned control technique, coating fluid backflow is controlled technique and is optimized, the coating fluid of backflow is made
After settling remove impurity, circular vibrating screen screening by U-tube, it is ensured that in system, impurity and fiber fines are by lasting removing, it is ensured that
The stablizing of coating fluid quality in system, use coating fluid reflux pump persistently force to be delivered to coating backflow feeding pump it
Before, it is ensured that can the coating fluid of reuse preferentially by reuse, improve utilization rate and the stability of coating fluid endoplasm of coating fluid,
Coating fluid blood circulation known to the main distinction of this invention is that its control technique used is that partial circulating controls technique, no
Coating fluid is allowed directly to be back in coating fluid tank on the spot, it is ensured that the cleaning that coating fluid in coating fluid tank on the spot is absolute.Its
Providing the benefit that: coating fluid capacity of returns substantially constant, reuse ratio is basicly stable, it is ensured that coating fluid is built in long-time raw
Produce operating stability, it is ensured that the stability of the endoplasm of reconstituted tobacoo.
The invention has the beneficial effects as follows: use system to stablize the interior of coating fluid while controlling papermaking-method reconstituted tobaccos spreading rate
Matter, thus carry out the quality of final stabilized final products.
Accompanying drawing explanation
Fig. 1 is present invention coating fluid the most of the present invention preparation process schematic diagram.
Fig. 2 is present invention coating fluid the most of the present invention feeding process flow diagram.
Detailed description of the invention
Enforcement to process control schemes is described in further detail below in conjunction with the accompanying drawings:
According to finished product R&D process draws optimum concentrated solution concentration, this concentration value is set as that vaporizer finally goes out liquid
Concentration, and go out liquid densitometer by vaporizer and carry out on-line monitoring, it is positioned in concentrated solution holding tank, is kept stirring for device
It is in normally open, it is to avoid concentrated solution forms precipitation at holding tank；When needs are coated liquid preparation, use concentrated solution
Delivery pump is feed flow in coating fluid preparing tank, prepares coating fluid in coating fluid preparing tank according to coating fluid formula,
And stir to each component uniform position, use coating fluid delivery pump, complete feed flow in backward coating fluid tank on the spot to preparation；
Coating fluid feeding pump is variable frequency pump, now sets feeding flow according to operating modes such as paper machine speeds, by feeding pump frequency conversion
Speed governing reaches to set doses, and is detected traffic conditions in real time by effusion meter, and by densitometer pair
The feeding concentration of coating fluid detects, and compares with technique initialization concentration, according to the measured result of coating fluid concentration,
The concentration that vaporizer goes out liquid is adjusted correspondingly, and finally makes the coating fluid prepared, and thickens water not using
In the case of, the concentration that coating fluid has been prepared just can reach the result of technological requirement, this kind of control process advantage:
The composition making coating fluid internal composition is not affected by thickening water, it is ensured that the quality of coating fluid and homogeneity；
Coating fluid, after coating machine is coated with, carries out buffering and stands, by determining of scum cock valve in being back to U-tube
Phase opens and closes, and will be deposited on U-tube bottom system impurity, it is achieved dynamically remove impurity so that whole system is in
Dynamic equilibrium, crosses the light impurity that can not go out for U-shaped tank, is further being removed after circular vibrating screen, and this kind removes
The advantage of miscellaneous method: (1) is in a dynamic continuous print process, and it is properly functioning that the process of remove impurity does not interferes with coating machine；
(2) remove deimpurity amount relative constancy, because of losing too much coating fluid in dedoping step, and painting will not be had influence on
Cloth liquid and the balance of substrate quantity；(3) dedoping step is a natural gravity sedimentation and screening remove impurity, will not be to coating fluid
Cause excessive mechanical destruction；
Coating fluid, after remove impurity and screening process, returns in coating fluid filtering tank, eventually passes through coating fluid backflow variable frequency pump
Will backflow after coating fluid compulsory be delivered to feeding pump in proportion before, due to coating fluid feeding pump continuous service, pump
Entrance is in negative pressure state, and the coating fluid now come from coating fluid tank on the spot is in normal pressure, and carries, from reflux pump, the painting of coming
Cloth liquid is with certain pressure, and this part coating fluid preferentially will be pumped to coating machine by feeding pump, and the inadequate part of capacity of returns is again
Supplemented fresh coating fluid by coating fluid tank on the spot, constant ratio join in feeding system, the advantage of this kind of method:
The coating fluid of backflow is not passed straight back in coating fluid tank on the spot, it is ensured that unaffected to fresh coating fluid, is continuing simultaneously
Backflow reuse proportions constant in production process is less to coating fluid endoplasm influence of fluctuations；
Above in association with accompanying drawing, detailed description of the invention and the FINISHED measurement result of the present invention are described, but these explanations
Can not be considered as limiting the scope of the present invention, any change carried out on the basis of the claims in the present invention is all this
Bright protection domain.
Claims (1)
1. a papermaking-method reconstituted tobaccos optimizes coating process, it is characterised in that the steps include:
A. according to the concentration requirement of product concentrated solution, this concentration value is set as that vaporizer finally goes out
The concentration of liquid, and go out liquid densitometer by vaporizer and carry out on-line monitoring；
B. vaporizer finally goes out liquid and is positioned in concentrated solution holding tank, is kept stirring for device and is in stirring
State；
C., during coating fluid preparation, use concentrated solution delivery pump by the concentrated solution in concentrated solution holding tank
Pump in coating fluid preparing tank, in coating fluid preparing tank, coating fluid is prepared, and stir
After Jun Yun, use coating fluid delivery pump, feed flow in coating fluid on the spot tank；Described coating fluid
Delivery pump is variable frequency pump；
D. coating fluid is after coating machine is coated with, and carries out buffering and stand in being back to U-tube,
Periodically turning on and closing by scum cock valve, removes and is deposited on the impurity bottom U-tube；
Realize dynamic remove impurity so that whole system is in a dynamic equilibrium；Described U-tube connects
There is circular vibrating screen；
E. coating fluid is after remove impurity and screening process, and returns in coating fluid filtering tank, coated
Liquid backflow variable frequency pump pump is to coating fluid tank on the spot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310230216.2A CN104161300B (en) | 2013-06-10 | 2013-06-10 | A kind of papermaking-method reconstituted tobaccos optimizes coating process |
Applications Claiming Priority (1)
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| CN201310230216.2A CN104161300B (en) | 2013-06-10 | 2013-06-10 | A kind of papermaking-method reconstituted tobaccos optimizes coating process |
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| CN104161300A CN104161300A (en) | 2014-11-26 |
| CN104161300B true CN104161300B (en) | 2016-08-17 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106036989B (en) * | 2016-08-12 | 2017-11-07 | 安徽中烟再造烟叶科技有限责任公司 | A kind of method of On-line Control reproduced tobacco concentrated liquid concentration |
| CN106213573A (en) * | 2016-09-23 | 2016-12-14 | 福建中烟工业有限责任公司 | Paper-process reconstituted tobacco coating system and coating fluid purification method |
| CN108560317B (en) * | 2018-01-16 | 2020-10-27 | 河南卷烟工业烟草薄片有限公司 | Method for coating by using paper-making reconstituted tobacco coating liquid supply device |
| CN108056494A (en) * | 2018-01-31 | 2018-05-22 | 湖北中烟工业有限责任公司 | A kind of system and method for improving recombination tobacco leaf and wrapping up in clothing coating fluid degree of purity |
| CN108541998A (en) * | 2018-06-09 | 2018-09-18 | 中国烟草总公司郑州烟草研究院 | A kind of papermaking-method reconstituted tobaccos spreading rate on-line control system and its control method |
| CN109364787A (en) * | 2018-11-19 | 2019-02-22 | 云南昆船环保技术有限公司 | A kind of alcohol concentration auto-scheduling system and its concocting method |
| CN112890265B (en) * | 2021-03-31 | 2023-05-30 | 安徽中烟再造烟叶科技有限责任公司 | Device and method for controlling physical index of dip-coating type coating liquid of reconstituted tobacco by papermaking method |
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