CN102499441A - Method for secondary coating of reconstituted tobacco and reflux treatment of coating liquid - Google Patents
Method for secondary coating of reconstituted tobacco and reflux treatment of coating liquid Download PDFInfo
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Abstract
The invention provides a method for secondary coating of reconstituted tobacco and reflux treatment of a coating liquid. The method comprises the following steps of: extracting a tobacco raw material, separating, pulping insoluble matter, papermaking to obtain a sheet base, and blending an extracting liquid to obtain the coating liquid; coating the coating liquid on the sheet base in a dip-coating mode; separating the coating liquid which is dip-coated and refluxed by using a first-stage cyclone separator to obtain a purified coating liquid and a coating liquid containing small impurities and small damaged sheets of the sheet base; bubbling the purified coating liquid by using a bubbler, and coating the coating liquid on the sheet base for the second time by a bubble coating method; and mixing the obtained coating liquid containing the small impurities and the small damaged sheets of the sheet base, and a coating liquid which is refluxed after secondary coating, separating by using a second-stage cyclone separator, and recycling an obtained purified coating liquid. By the method, the coating weight of the reconstituted tobacco is increased, the solid content and viscosity of the coating liquid are stabilized, the loss of the coating liquid is reduced, and the control accuracy of the coating weight of the reconstituted tobacco can be improved.
Description
Technical field
The present invention relates to a kind of reconstituted tobacoo secondary coating and coating fluid reflow method, belong to the tobacco sheets by paper making method production technical field.
Background technology
Reconstituted tobacoo is through processing with tobacco wastes such as offal discarded in the production of cigarettes process, offal and low inferior tobacco leaves; Produce the laminar tobacco regenerative raw materials that meets the cigarette composition requirement, reconstituted tobacoo is mixed according to a certain percentage in natural tobacco leaf and is processed cigarette.
The technology of making reconstituted tobacoo mainly contains three kinds, that is: roll-in method, thick slurry method and paper process, and wherein paper process has polytechnic overall merit, accounts for the tool leading position at present.The tobacco sheets by paper making method production technology adopts the two-step method processing technology: after offal, offal and low inferior tobacco leaf are added water intensification immersion certain hour; Make immersion system Separation of Solid and Liquid; Wherein solid phase is mainly insoluble fibre, adds the top wood pulp cellulose, processes paper shape sheet base by paper technology; Liquid phase is then for containing the leaching liquor of solable matter, and after concentrating in the disposable immersion sheet base or coat on the sheet base, the sheet base can obtain reconstituted tobacoo through drying, after cutting.
The apparatus for coating that reconstituted tobacoo is commonly used is a dipping process; Leaching liquor (being coating fluid) after concentrating is to adopt the continuous backflow endless form that the sheet base is coated with; Be that feed liquor-sheet base dip-coating-coating fluid refluxes, its shortcoming that circulates successively is: one, the control of coating process coating weight is difficult, and coating evenness is not good; Spreading rate is also lower, generally below 50%; Two, the backflow coating fluid is inevitably brought the damaged small pieces of fiber fines in the sheet base and sheet base in the coating fluid in coating process, and the quality of coating fluid is affected; Three, the continuous backflow of coating fluid is used, and its viscosity and solid content are progressively raise, and has both caused the coating fluid poor mobile performance, and it is stable influence the thin slice quantity-produced, and the outward appearance and the sensible quality of thin slice also caused direct influence.So, produce a period of time continuously after, must adopt artificial coating fluid to be gone out clearly, after separating with centrifuge, coating fluid recycles.
Chinese patent CN1565285A discloses a kind of coating reducing process of producing papermaking-method reconstituted tobaccos, and this technology comprises that the extract of raw material is coated on the sheet base several times, and fragrant-inducing property material or other low boiling additive can add in the corresponding coating stage.The processing method of technology when not mentioning repeatedly the use of coating liquid for coating continuous backflow in this patent.China utility model patent CN201379060Y discloses a kind of reconstituted tobacoo coating fluid filtration system, and content comprises, adopts the filter screen secondary filter, and the impurity in the interception coating fluid is stablized the solid content and the viscosity of gained filtrating, and maintenance also improves the concentrate quality.But adopting filtration system to be used for serialization production, this patent then need regularly clean inconvenient operation.
Summary of the invention
Above-mentioned deficiency to prior art; Technical problem to be solved by this invention provides a kind of reconstituted tobacoo secondary coating and coating fluid reflux cycle processing method; Comprise and adopt foam coating technology that reconstituted tobacoo is carried out the secondary coating; This coating process helps to increase and control reconstituted tobacoo coating weight, guarantees the uniformity of coating; Be coated with employing continuous cyclone formula separation in the used coating fluid reflux course at secondary; Can remove the damaged small pieces of sheet base of bringing coating fluid in fine impurities such as silt dust in the coating fluid and the coating into; Stablize the viscosity and the solid content of coating fluid; Guarantee the coating fluid interior quality, make coating process serialization operation.
In order to solve the problems of the technologies described above, the invention provides a kind of reconstituted tobacoo secondary coating and coating fluid reflow method, it is characterized in that, comprising:
The first step: tobacco material is extracted the back at extractor separates, with the insoluble matter slurrying of gained and the base in flakes of manufacturing paper with pulp, with the extract of gained through strainer filtering, concentrate modulation and obtain coating fluid;
Second step: the coating fluid of gained is coated on the sheet base through the dip-coating mode;
The 3rd step: the coating fluid that refluxes after the dip-coating is separated coating fluid after being purified and the coating fluid that contains the damaged small pieces of fine impurities and sheet base through primary cyclone;
The 4th step: the coating fluid after will purifying is coated the coating fluid secondary on the sheet base through the foam coating process after foaming through bubbler;
The 5th step: the coating fluid that contains fine impurities and the damaged small pieces of sheet base of the 3rd step gained is mixed with the coating fluid that the secondary coating refluxes; Separate through the secondary cyclone separator; Coating fluid after the purification of gained carries out cycling and reutilization, and the coating fluid that contains fine impurities and the damaged small pieces of sheet base of gained is sent into extraction workshop section and carried out the extraction of tobacco material.
Dipping process of the present invention is the known routine techniques of this professional.
The common eddy flow scummer in primary cyclone of the present invention and secondary cyclone separator and existing pulping and paper-making field is different; For being used for the cyclone separation device that liquid-liquid separates; Be preferably and be mainly used in the cyclone separator that sulfur-containing waste water or oil-polluted water separate; Like application number is 00217613.0 the disclosed Liquid-Liquid Separation Hydrocyclone of Chinese patent, and this cyclone is provided with one or more cyclone pipes that are provided with tapering in housing, can be mainly used in dehydration of crude oil production; Also can be used to remove salt and impurity in the crude oil; Its volume is little, in light weight, processing speed is fast, is a kind of novel, efficient, energy-conservation liquid-liquid separation equipment, also can be used for continuous phase liquid-solid separate less with the decentralized photo difference in specific gravity.This cyclone be applicable to viscosity less than 500mPas, continuous phase and decentralized photo difference in specific gravity greater than 0.05g/cm
3, the decentralized photo particle diameter is greater than 5 microns separation system.The cyclone separator operating temperature of this technology is in 25 ℃～100 ℃ scope, and for keeping the active ingredient of tobacco coating fluid to greatest extent, the operating temperature of cyclonic separation is preferably 30～70 ℃; The import of primary cyclone and secondary cyclone separator and the pressure between the underflow opening are reduced to 0.18～0.30Mpa.
Foam method coating process of the present invention is the foam coating technology that adopts in the weaving; Foam coating technology in the weaving is to adopt the method for machinery air to be sneaked into a kind of coating new technology that makes it produce foam and put on envers in the dispersion liquid; Fabric after the coating makes the water evaporation on the fabric through after baking typing, and the part air that is present in the bubble is also discharged from the coated fabric tow sides.Adopt foam coating technology provided by the invention, production technology is simple, and is easy to make; Coating is even, and the fluctuation of banner coating weight can remain in 5.0%, and coating weight is controlled easily; How much can being regulated by blowing ratio and coating layer thickness of secondary coating weight, blowing ratio is preferably 1:3-1:10.
For reaching cyclonic separation effect preferably, the coating fluid that the secondary coating refluxes is 10:1～30:1 with the volume ratio that the coating fluid that contains fine impurities and the damaged small pieces of sheet base of the 3rd step gained mixes.
Above-mentioned technology can confirm adopt one-level, secondary or multistage cyclone separation device to separate according to the amount that coating fluid contains fiber fines and impurity; And confirm extract and have the volume or the flow-rate ratio of the coating fluid of fine impurities and fiber according to required separating effect, in the hope of reaching ideal effect.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention adopts cyclone separator to carry out the purification separation of coating fluid: fine impurities and the fiber in the tobacco coating fluid effectively removed in (1); The solid content and the viscosity of coating fluid have been stablized; Adopt the solid content fluctuation of the cyclone separator secondary coating fluid of this technology can remain in 2%, viscosity fluctuation remains in 10%; The quality of twice coating before and after having kept reduces paper machine broken end probability, and the working condition of continous-stable is provided, and helps to improve the quality of thin slice; (2) separative efficiency is high, and simple in structure, volume is little, and is in light weight, and energy consumption is low; (3) the secondary cyclone separator the isolated coating fluid concentration that contains fine impurities higher; Directly discharging will cause the coating fluid loss of active ingredients; Itself and water are mixed for the extraction of tobacco material, can farthest active ingredient be remained in the extract.
2, the present invention adopts foam coating technology that reconstituted tobacoo is carried out the secondary coating, has increased the spreading rate of reconstituted tobacoo, has improved the coating evenness of reconstituted tobacoo, has strengthened the suction flavor of thin slice.
Description of drawings
Fig. 1 is coating of reconstituted tobacoo secondary and coating fluid reflow method flow chart.
The specific embodiment
Below pass through the specific embodiment, and combine accompanying drawing that the present invention is further described.Described primary cyclone that the present invention is used and secondary cyclone separator are the disclosed cyclone separator of patent ZL00217613.0, and bubbler that the present invention is used and foam application device are the employed bubbler of coating process and the foam application device of the foam gluing in the commercially available weaving.
Embodiment 1
As shown in Figure 1; Be coating of reconstituted tobacoo secondary and coating fluid reflow method flow chart; Described reconstituted tobacoo secondary coating and coating fluid reflow method comprise: tobacco material (offal, tobacco leaf fragment and offal) water is extracted the back separate; With the insoluble matter slurrying and the base in flakes of manufacturing paper with pulp, the extract that will contain DDGS obtains the reconstituted tobacoo coating fluid through strainer filtering, concentrated modulation; Concentrating the back coating fluid coats on the sheet base through the dip-coating mode; The backflow coating fluid separates under 50 ℃ temperature through primary cyclone after the dip-coating, and the import of primary cyclone and the pressure between the underflow opening are reduced to 0.18Mpa; Coating fluid after the purification foams through bubbler, and blowing ratio is: 1:3, through the foam coating process coating fluid secondary is coated once on the sheet base of coating back, and the sheet backbone of gained is dry, to remove the part air in steam and the bubble; The coating fluid that contains the damaged small pieces of fine impurities and sheet base mixes by the volume ratio of 1:30 with secondary coating backflow coating fluid; Separate under 50 ℃ temperature through the secondary cyclone separator, the import of secondary cyclone separator and the pressure between the underflow opening are reduced to 0.18Mpa; Coating fluid after purifying is carried out cycling and reutilization, and the coating fluid that contains fine impurities is sent into extraction workshop section and is carried out the extraction of tobacco material.
The thin slice that adopts present embodiment to make, stay in grade is good, and through the specialty expert opinion of smokeing panel test, this slice flue gas concentration is better, and fragrance is abundant, and assorted gas and excitant obviously reduce.The solid content of coating fluid and viscosity stabilization, coating weight is stable, and analysis result is following: coating fluid solid content before once being coated with: 38.6%, viscosity: 204mPas; Coating fluid solid content before the secondary coating: 39.0%, viscosity: 221 mPas; Spreading rate: 60.5%.
Embodiment 2
As shown in Figure 1; Be coating of reconstituted tobacoo secondary and coating fluid reflow method flow chart; Described reconstituted tobacoo secondary coating and coating fluid reflow method comprise: tobacco material (offal, tobacco leaf fragment and offal) water is extracted the back separate; With the insoluble matter slurrying and the base in flakes of manufacturing paper with pulp, the extract that will contain DDGS obtains the reconstituted tobacoo coating fluid through strainer filtering, concentrated modulation; Concentrating the back coating fluid coats on the sheet base through the dip-coating mode; The backflow coating fluid separates under 70 ℃ temperature through primary cyclone after the dip-coating, and the import of primary cyclone and the pressure between the underflow opening are reduced to 0.18Mpa; Coating fluid after the purification foams through bubbler, and blowing ratio is: 1:6, through the foam coating process coating fluid secondary is coated once on the sheet base of coating back, and the sheet backbone of gained is dry, to remove the part air in steam and the bubble; The coating fluid that contains the damaged small pieces of fine impurities and sheet base mixes by the volume ratio of 1:20 with secondary coating backflow coating fluid; Separate under 50 ℃ temperature through the secondary cyclone separator, the import of secondary cyclone separator and the pressure between the underflow opening are reduced to 0.30Mpa; Coating fluid after purifying is carried out cycling and reutilization, and the coating fluid that contains fine impurities is sent into extraction workshop section and is carried out the extraction of tobacco material.
The thin slice that adopts present embodiment to make, stay in grade is good, and through the specialty expert opinion of smokeing panel test, this slice flue gas concentration is better, and fragrance is abundant, and assorted gas and excitant obviously reduce.The solid content of coating fluid and viscosity stabilization, coating weight is stable, and analysis result is following: coating fluid solid content before once being coated with: 38.2%, viscosity: 198 mPas; Coating fluid solid content before the secondary coating: 38.8%, viscosity: 216 mPas; Coating weight: 57.7%.
Embodiment 3
As shown in Figure 1; Be coating of reconstituted tobacoo secondary and coating fluid reflow method flow chart; Described reconstituted tobacoo secondary coating and coating fluid reflow method comprise: tobacco material (offal, tobacco leaf fragment and offal) water is extracted the back separate; With the insoluble matter slurrying and the base in flakes of manufacturing paper with pulp, the extract that will contain DDGS obtains the reconstituted tobacoo coating fluid through strainer filtering, concentrated modulation; Concentrating the back coating fluid coats on the sheet base through the dip-coating mode; The backflow coating fluid separates under 30 ℃ temperature through primary cyclone after the dip-coating, and the import of primary cyclone and the pressure between the underflow opening are reduced to 0.30Mpa; Coating fluid after the purification foams through bubbler, and blowing ratio is: 1:10, through the foam coating process coating fluid secondary is coated once on the sheet base of coating back, and the sheet backbone of gained is dry, to remove the part air in steam and the bubble; The coating fluid that contains the damaged small pieces of fine impurities and sheet base mixes by the volume ratio of 1:10 with secondary coating backflow coating fluid; Separate under 50 ℃ temperature through the secondary cyclone separator, the import of secondary cyclone separator and the pressure between the underflow opening are reduced to 0.30Mpa; Coating fluid after purifying is carried out cycling and reutilization, and the coating fluid that contains fine impurities is sent into extraction workshop section and is carried out the extraction of tobacco material.
The thin slice that adopts present embodiment to make, stay in grade is good, and through the specialty expert opinion of smokeing panel test, this slice flue gas concentration is better, and fragrance is abundant, and assorted gas and excitant obviously reduce.The solid content of coating fluid and viscosity stabilization, coating weight is stable, and analysis result is following: coating fluid solid content before once being coated with: 38.5%, viscosity: 208 mPas; Coating fluid solid content before the secondary coating: 39.3%, viscosity: 218 mPas; Spreading rate: 55.9%.
Claims (5)
1. a reconstituted tobacoo secondary is coated with and the coating fluid reflow method, it is characterized in that, comprising:
The first step: tobacco material is extracted the back at extractor separates, with the insoluble matter slurrying of gained and the base in flakes of manufacturing paper with pulp, with the extract of gained through strainer filtering, concentrate modulation and obtain coating fluid;
Second step: the coating fluid of gained is coated on the sheet base through the dip-coating mode;
The 3rd step: the coating fluid that refluxes after the dip-coating is separated coating fluid after being purified and the coating fluid that contains the damaged small pieces of fine impurities and sheet base through primary cyclone;
The 4th step: the coating fluid after will purifying foams through bubbler, adopts the foam coating process that the coating fluid secondary is coated on the sheet base;
The 5th step: the coating fluid that contains fine impurities and the damaged small pieces of sheet base of the 3rd step gained is mixed with the coating fluid that the secondary coating refluxes; Separate through the secondary cyclone separator; Coating fluid after the purification of gained carries out cycling and reutilization, and the coating fluid that contains fine impurities and the damaged small pieces of sheet base of gained is sent into extraction workshop section and carried out the extraction of tobacco material.
2. reconstituted tobacoo secondary coating as claimed in claim 1 and coating fluid reflow method is characterized in that described primary cyclone is to be used for the cyclone separation device that liquid-liquid separates with the secondary cyclone separator.
3. reconstituted tobacoo secondary coating as claimed in claim 1 and coating fluid reflow method; It is characterized in that; The operating temperature of described primary cyclone and secondary cyclone separator is in 25 ℃～100 ℃ scope, and the import of primary cyclone and secondary cyclone separator and the pressure between the underflow opening are reduced to 0.18～0.30Mpa.
4. reconstituted tobacoo secondary coating as claimed in claim 1 and coating fluid reflow method is characterized in that the blowing ratio of described bubbler is 1:3-1:10.
5. reconstituted tobacoo secondary coating as claimed in claim 1 and coating fluid reflow method; It is characterized in that the coating fluid that described secondary coating refluxes is 10:1～30:1 with the volume ratio that the coating fluid that contains fine impurities and the damaged small pieces of sheet base of the 3rd step gained mixes.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102894462A (en) * | 2012-10-11 | 2013-01-30 | 湖北中烟工业有限责任公司 | Method for improving water absorbability of reconstituted tobacco substrates |
| CN102920015A (en) * | 2012-11-16 | 2013-02-13 | 云南瑞升烟草技术（集团）有限公司 | Preparation method of moisture-retaining emulsion of paper-making reconstituted tobacco and application of moisture-retaining emulsion |
| CN103126052A (en) * | 2013-02-19 | 2013-06-05 | 中国海诚工程科技股份有限公司 | Device and method for producing tobacco sheets |
| CN104161300A (en) * | 2013-06-10 | 2014-11-26 | 广东金科再造烟叶有限公司 | Paper-making process reconstituted tobacco optimizing coating process |
| CN105167155A (en) * | 2015-08-10 | 2015-12-23 | 中国海诚工程科技股份有限公司 | Production method and device for tobacco sheets |
| CN105286077A (en) * | 2015-10-27 | 2016-02-03 | 江苏中烟工业有限责任公司 | Extract liquor purification treatment method for paper-making reconstituted tobacco |
| 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 |
| CN106562467A (en) * | 2016-11-02 | 2017-04-19 | 浙江泽源植物科技有限公司 | Tobacco/non-tobacco slice composite coating processing method |
| CN106901396A (en) * | 2017-05-05 | 2017-06-30 | 江苏中烟工业有限责任公司 | A kind of processing method of papermaking-method reconstituted tobaccos backflow coating fluid |
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| CN1565285A (en) * | 2003-06-13 | 2005-01-19 | 广东省金叶烟草薄片技术开发有限公司 | Remaking tobacco leaf applying reduction process using paper making method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102894462B (en) * | 2012-10-11 | 2015-07-08 | 湖北中烟工业有限责任公司 | Method for improving water absorbability of reconstituted tobacco substrates |
| CN102894462A (en) * | 2012-10-11 | 2013-01-30 | 湖北中烟工业有限责任公司 | Method for improving water absorbability of reconstituted tobacco substrates |
| CN102920015A (en) * | 2012-11-16 | 2013-02-13 | 云南瑞升烟草技术（集团）有限公司 | Preparation method of moisture-retaining emulsion of paper-making reconstituted tobacco and application of moisture-retaining emulsion |
| CN103126052A (en) * | 2013-02-19 | 2013-06-05 | 中国海诚工程科技股份有限公司 | Device and method for producing tobacco sheets |
| CN103126052B (en) * | 2013-02-19 | 2015-01-21 | 中国海诚工程科技股份有限公司 | Device and method for producing tobacco sheets |
| CN104161300B (en) * | 2013-06-10 | 2016-08-17 | 广东金科再造烟叶有限公司 | A kind of papermaking-method reconstituted tobaccos optimizes coating process |
| CN104161300A (en) * | 2013-06-10 | 2014-11-26 | 广东金科再造烟叶有限公司 | Paper-making process reconstituted tobacco optimizing coating process |
| CN105167155A (en) * | 2015-08-10 | 2015-12-23 | 中国海诚工程科技股份有限公司 | Production method and device for tobacco sheets |
| CN105286077A (en) * | 2015-10-27 | 2016-02-03 | 江苏中烟工业有限责任公司 | Extract liquor purification treatment method for paper-making reconstituted tobacco |
| 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 |
| CN106562467A (en) * | 2016-11-02 | 2017-04-19 | 浙江泽源植物科技有限公司 | Tobacco/non-tobacco slice composite coating processing method |
| CN106901396A (en) * | 2017-05-05 | 2017-06-30 | 江苏中烟工业有限责任公司 | A kind of processing method of papermaking-method reconstituted tobaccos backflow coating fluid |
| CN106901396B (en) * | 2017-05-05 | 2018-06-15 | 江苏中烟工业有限责任公司 | A kind of processing method of papermaking-method reconstituted tobaccos reflux coating fluid |
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