CN102488319B - Continuous extraction method and device of papermaking reconstituted tobacco - Google Patents
Continuous extraction method and device of papermaking reconstituted tobacco Download PDFInfo
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- CN102488319B CN102488319B CN201110381392.7A CN201110381392A CN102488319B CN 102488319 B CN102488319 B CN 102488319B CN 201110381392 A CN201110381392 A CN 201110381392A CN 102488319 B CN102488319 B CN 102488319B
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Abstract
The invention discloses a continuous extraction method and device of papermaking reconstituted tobacco. The continuous extraction device of the papermaking reconstituted tobacco is characterized by comprising a mixer, a first spiral conveyor, a downflow extraction tower, a medium-consistency pulp pump, a press master, a fluffer and a second spiral conveyor, wherein the mixer, the first spiral conveyor, the downflow extraction tower and the medium-consistency pulp pump are orderly connected, a material discharge hole of the medium-consistency pulp pump is connected with a material feeding hole of the press master, a concentrated material discharge hole of the press master is connected with the fluffer, the fluffer is connected with the second spiral conveyor, a material discharge hole of the second spiral conveyor is connected to the next level of extraction section or pulping section, and an extract liquor discharge hole of the press master is connected to an extract liquor feeding hole of the mixer in a concentration section of the extract liquor or the last extraction section. The continuous extraction device of the papermaking reconstituted tobacco, disclosed by the invention, has the advantages of simple operation, good production flexibility, capability of continuously producing, low water consumption and high extraction rate.
Description
Technical field
The continuous extration method and the device that the present invention relates to a kind of tobacco sheets by paper making method, belong to tobacco sheets by paper making method production technical field.
Background technology
Tobacco sheets by paper making method has the twice laid of realization, and reduce tobacco leaf loss, reduce the effects such as cigarette tar content, be a tobacco manufacturing process technology of current domestic rise.Tobacco sheets by paper making method generally adopts two step method manufacture, and technical process comprises: the operations such as raw material is processed, lixiviate extraction, concentrated allotment, slurry preparation, the moulding of manufacturing paper with pulp, coating, finished product processing.Lixiviate extraction is an important operation process during paper-making method reconstructed reconstituted tobacoo is produced.Tobacco offal, offal and crumbled tobacco mix immersion by a certain percentage with the warm water of 45～85 ℃, fully mixing and soak after certain hour, enter extraction, to extract the various active ingredients in material.Offal after abundant immersion, offal and crumbled tobacco, best extraction yield: offal can reach more than 55%; Offal and crumbled tobacco can reach more than 48%.
Domestic most employing pot type equipment extracts tobacco effective ingredient at present, and it is mainly by the inspection manhole on leaching can and leaching can, charging aperture, heat water-spraying's pipe, discharging opening, and the major parts such as the vertical stirrer in tank form.In leaching can, the stirring vane of agitator is arranged on vertical shaft, in immersion process, because the stirring vane of agitator is at a horizontal plane Stirring, material and water fully can not be uniformly mixed, partial material is suspended on the water surface, can not reach the object of abundant immersion, make the various active ingredients in material fail to be extracted fully.The conveying worm that discharging is used is one-way spiral structure, makes in tank the material of dead angle area go out unclean, has reduced production efficiency, has also affected the formula rate of technique.Pot type occupation area of equipment is large, and utilization rate of equipment and installations is low, can not carry out continous way production.
Current existing a kind of continuous extraction equipment, it adopts is with foraminate continuous helical structure, equipment volume is large, and the hole on helical blade easily stops up, and equipment cleaning difficulty is large, when charging because material can float on the surface, increased charging difficulty, affected extraction efficiency, cannot in leaching process, to material, extract, be difficult to realize counter-flow extraction, the consumption of water is large.
Chinese patent CN1836588A discloses a kind of paper making method tobacco sheet continuous extraction and squeezing apparatus, and it adopts continuous separate segmentation helical structure, long because of cylindrical shell, easily forms overstocked really up to the mark, the fault such as charging is smooth, helical axis skids of material plug.
Summary of the invention
Above-mentioned deficiency for prior art, the object of this invention is to provide a kind of equipment operating simple, and production flexibility is good, can produce continuously, and water consumption is few, tobacco sheets by paper making method continuous extration method and device that extraction yield is high.
For achieving the above object, the invention provides a kind of tobacco sheets by paper making method continuous extraction apparatus, it is characterized in that, comprise at least one-level extraction workshop section, every grade of extraction workshop section comprises blender, the first conveying worm, streaming extraction tower falls, middle underflow pump, press master, fluffer and the second conveying worm, blender, the first conveying worm, falling streaming extraction tower is connected successively with middle underflow pump, the material outlet of middle underflow pump connects the material inlet of press master, the concentrated material outlet of press master connects fluffer, fluffer connects the second conveying worm, the material outlet of the second conveying worm is connected to extraction feed entrance or the beater floor of the blender of next stage extraction workshop section, the extract outlet of press master is connected to the extractant entrance of the blender of extract concentration section or upper level extraction workshop section.
Described blender is high dense material solid-liquid blender, is preferably the high dense blender of disc type or the high dense blender of rotor.
The described streaming extraction tower that falls is cylindrical downflow tower, can select the dense streaming bleaching tower that falls of the common height in pulping and paper-making field.Be provided with material baffle and make in tower to form evenly loose natural object stockpile entering to starch spout the place ahead, at the bottom of tower, be provided with at the bottom of discharger makes reacted paper pulp by tower and discharge, the air and a small amount of steam that enter in tower are discharged from tower top, and the size of tower is determined by extraction time, flow velocity and the discharging speed of extraction feed.
Described press master is that material concentrates and extract extraction equipment, is preferably Var-nip press or acroll press washer.
Described fluffer is discongested for the material of slabbing after concentrated or bulk the equipment of discongesting that disperses to become loose shape fiber suspension, can select the common high density bleaching fluffer in pulping and paper-making field.
Described middle underflow pump, conveying worm are the known equipment of the art personnel.
The present invention also provides a kind of continuous extration method of tobacco sheets by paper making method, it is characterized in that, adopts above-mentioned tobacco sheets by paper making method continuous extraction apparatus,, the extraction step of every grade of extraction workshop section is:
The first step: extraction feed is sent into blender, with temperature be the extractant of 35～85 ℃ by weight after 1:3-1:8 mixes, by the first conveying worm, send into fall in streaming extraction tower and extract;
Second step: extraction feed is sent material into middle underflow pump after extracting in falling streaming extraction tower, then is pumped into by middle underflow pump the Separation of Solid and Liquid that press master carries out extraction feed and extract;
The 3rd step: the material that the isolated solid weight concentration of press master is 20%～30% is after fluffer is discongested dispersion, through the second conveying worm, be transported to next stage extraction workshop section or beater floor, the extract extracting is admitted to extract concentration section to carry out filtering and concentrating or is back to upper level extraction workshop section carrying out cycling extraction.。
Extraction feed in the described first step is that offal tobacco leaf or the upper level separated after fibre extract workshop section through separation and discongest the material after dispersion.
Extractant in the described first step is water, the extract extracting from next stage extraction workshop section or their mixture.Extraction time in the described first step is preferably 20-60 minute.
Above-mentioned technique can determine that one section, two sections of employings or multistage continuous extraction apparatus extract according to the extraction yield of tobacco material and extract density, and according to required effect of extracting, determine volume or the flow-rate ratio of extract and hot water and extractant and extraction feed, in the hope of reaching ideal effect.
Compared with prior art, advantage of the present invention is: (1) the present invention is more suitable for the extraction process of the extraction feeds such as offal tobacco leaf and the low liquor ratio of extractant, has and can produce continuously, and production flexibility is good, water consumption is few, extraction yield advantages of higher.(2) the present invention adopts blender to mix extraction feed and extractant before extraction, make extraction feed further discongest dispersion, reach the more high-intensity pulsation of fibre-grade, surface area increases sharply, create extraction material and the condition that extractant fine droplets directly contacts, contributed to keep the homogeneity of extraction.(3) the present invention adopts and falls the extraction that streaming extraction tower carries out the extraction feeds such as offal tobacco leaf, extraction feed falls under from tower top to tower and completes the extraction of raw material, extraction feed in tower bottom is by the gravitational compaction of upper materials, there will not be extraction feed to be suspended in the situation on liquid level, contribute to the extraction of the extraction feed active ingredients such as offal tobacco leaf.(4) material after the present invention adopts press master to extraction carries out Separation of Solid and Liquid, contributes to improve the extraction yield of tobacco material active ingredient.
Accompanying drawing explanation
?fig. 1 is tobacco sheets by paper making method continuous extraction apparatus schematic diagram.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1
As shown in Figure 1, for tobacco sheets by paper making method continuous extraction apparatus schematic diagram, described tobacco sheets by paper making method continuous extraction apparatus is comprised of secondary extraction workshop section, every grade of described extraction workshop section by blender 1, the first conveying worm 2, fall streaming extraction tower 3, middle underflow pump 4, press master 5, fluffer 6, the second conveying worm 7 and form.The material outlet of blender 1 is connected with the material inlet of the first conveying worm 2, the material outlet of the first conveying worm 2 connects the top material entrance that falls streaming extraction tower 3, the material inlet of streaming extraction tower 3 bottom material outlets connection middle underflow pumps 4 falls, middle underflow pump 4 material outlets connect the material inlet of press master 5, the concentrated material outlet of press master 5 connects the material inlet of fluffer 6, the material outlet of fluffer 6 connects the material inlet of conveying worm 7, the material outlet of the conveying worm 7 of first order extraction workshop section is connected to the extraction material inlet of the blender 1 of second level extraction workshop section, the extract outlet of press master 5 is connected to extract concentration section, and the material outlet of the conveying worm 7 of second level extraction workshop section is connected to beater floor, and the extract outlet of press master 5 is connected to the extractant entrance of first order extraction workshop section blender 1.
Described blender 1 is the high dense blender of rotor.Described falls streaming extraction tower 3 for the common cylindrical streaming high density hypo tower that falls in pulping and paper-making field, and tower bottom disposes the scraper plate discharger of rotation.Described press master 5 is Var-nip press.Described fluffer 6 is the common high density bleaching fluffer in pulping and paper-making field.Described middle underflow pump 4, conveying worm 7 are the known equipment of the art personnel.
Adopt the tobacco sheets by paper making method continuous extration method of said apparatus as follows:
First order extraction workshop section:
The first step: the offal tobacco leaf of separating after fibre is sent into blender 1 as extraction feed, after extractant through being 60 ℃ with temperature mixes by weight 1:3, by the first conveying worm 2, send into fall in streaming extraction tower 3 and extract, described extractant is that extraction time is 40 minutes from second level extraction workshop section extract.
Second step: after extraction feed extracts in falling streaming extraction tower 3, by the scraper plate discharger that falls the setting of streaming tower bottom, material is sent into middle underflow pump 4, then be pumped into by middle underflow pump 4 Separation of Solid and Liquid that press master 5 carries out extraction feed and extract;
The 3rd step: the material that the isolated solid weight concentration of press master 5 is 25% is discongested after dispersion through fluffer 6, the extraction material inlet that is transported to the blender 1 of second level extraction workshop section by conveying worm 7, the extract extracting is admitted to extract concentration section and carries out filtering and concentrating.
Second level extraction workshop section:
The first step: the first order is extracted to workshop section and send into blender 1 through material separated and that discongest after dispersion as extraction feed, after extractant through being 85 ℃ with temperature mixes by weight 1:5, by the first conveying worm 2, send into fall in streaming extraction tower 3 and extract, described extractant is water, and extraction time is 60 minutes.
Second step: after extraction feed extracts in falling streaming extraction tower 3, by the scraper plate discharger that falls the setting of streaming tower bottom, material is sent into middle underflow pump 4, then be pumped into by middle underflow pump 4 Separation of Solid and Liquid that press master 5 carries out extraction feed and extract;
The 3rd step: the material that the isolated solid weight concentration of press master 5 is 30% is discongested after dispersion through fluffer 6, is transported to beater floor by conveying worm 7, the extract extracting is connected to the extractant entrance of first order extraction workshop section blender 1.
This process method equipment works well, and simple to operate in the extraction feeds such as tobacco tobacco leaf, water-soluble active principle single extraction rate is 55% flexibly, and the extract density extracting is 1.0617g/m
3.
Embodiment 2
As shown in Figure 1, for tobacco sheets by paper making method continuous extraction apparatus schematic diagram, described tobacco sheets by paper making method continuous extraction apparatus is comprised of three grades of extraction workshop sections, every grade of extraction workshop section by blender 1, the first conveying worm 2, fall streaming extraction tower 3, middle underflow pump 4, press master 5, fluffer 6, the second conveying worm 7 and form.The material outlet of blender 1 is connected with the material inlet of the first conveying worm 2, the material outlet of the first conveying worm 2 connects the top material entrance that falls streaming extraction tower 3, the material inlet of streaming extraction tower 3 bottom material outlets connection middle underflow pumps 4 falls, middle underflow pump 4 material outlets connect the material inlet of press master 5, the concentrated material outlet of press master 5 connects the material inlet of fluffer 6, the material outlet of fluffer 6 connects the material inlet of conveying worm 7, the material outlet of the conveying worm 7 of first order extraction workshop section is connected to the extraction material inlet of the blender 1 of second level extraction workshop section, the extract outlet of press master 5 is connected to extract concentration section, the material outlet of the conveying worm 7 of second level extraction workshop section is connected to the extraction material inlet of the blender 1 of third level extraction workshop section, the extract outlet of press master 5 is connected to the extractant entrance of first order extraction workshop section blender 1, the material outlet of the conveying worm 7 of third level extraction workshop section connects beater floor, the extract outlet of press master 5 is connected to the extractant entrance of second level extraction workshop section blender 1.
Described blender 1 is the high dense blender of disc type.Described falls streaming extraction tower 3 for the common cylindrical streaming high density hypo tower that falls in pulping and paper-making field, and tower bottom disposes the scraper plate discharger of rotation.Described press master 5 is acroll press washer.Described fluffer 6 is the common high density bleaching fluffer in pulping and paper-making field.Described middle underflow pump 4, conveying worm 7 are the known equipment of the art personnel.
Adopt the tobacco sheets by paper making method continuous extration method of said apparatus as follows:
First order extraction workshop section:
The first step: the offal tobacco leaf of separating after fibre is sent into blender 1 as extraction feed, after extractant through being 60 ℃ with temperature mixes by weight 1:8, by the first conveying worm 2, send into fall in streaming extraction tower 3 and extract, described extractant is water and the mixture that extracts the extract of workshop section from the second level, wherein, the ratio that accounts for extractant from the extract of second level extraction workshop section is 50%, and extraction time is 60 minutes.
Second step: after extraction feed extracts in falling streaming extraction tower 3, by the scraper plate discharger that falls the setting of streaming tower bottom, material is sent into middle underflow pump 4, then be pumped into by middle underflow pump 4 Separation of Solid and Liquid that press master 5 carries out extraction feed and extract;
The 3rd step: the material that the isolated solid weight concentration of press master 5 is 25% is discongested after dispersion through fluffer 6, the extraction material inlet that is transported to the blender 1 of second level extraction workshop section by conveying worm 7, the extract extracting is admitted to extract concentration section and carries out filtering and concentrating.
Second level extraction workshop section:
The first step: the first order is extracted to workshop section and send into blender 1 through material separated and that discongest after dispersion as extraction feed, after extractant through being 35 ℃ with temperature mixes by weight 1:5, by the first conveying worm 2, send into fall in streaming extraction tower 3 and extract, described extractant is water and the mixture that extracts the extract of workshop section from the third level, wherein, the ratio that accounts for extractant from the extract of third level extraction workshop section is 50%, and extraction time is 40 minutes.
Second step: after extraction feed extracts in falling streaming extraction tower 3, by the scraper plate discharger that falls the setting of streaming tower bottom, material is sent into middle underflow pump 4, then be pumped into by middle underflow pump 4 Separation of Solid and Liquid that press master 5 carries out extraction feed and extract;
The 3rd step: the material that the isolated solid weight concentration of press master 5 is 20% is discongested after dispersion through fluffer 6, by conveying worm 7, be transported to the extraction material inlet of the blender 1 of third level extraction workshop section, the extract extracting is connected to the extractant entrance of first order extraction workshop section blender 1.
Third level extraction workshop section:
The first step: the second level is extracted to workshop section and send into blender 1 through material separated and that discongest after dispersion as extraction feed, after extractant through being 85 ℃ with temperature mixes by weight 1:3, by the first conveying worm 2, send into fall in streaming extraction tower 3 and extract, described extractant is water, and extraction time is 20 minutes.
Second step: after extraction feed extracts in falling streaming extraction tower 3, by the scraper plate discharger that falls the setting of streaming tower bottom, material is sent into middle underflow pump 4, then be pumped into by middle underflow pump 4 Separation of Solid and Liquid that press master 5 carries out extraction feed and extract;
The 3rd step: the material that the isolated solid weight concentration of press master 5 is 30% is discongested after dispersion through fluffer 6, is transported to beater floor by conveying worm 7, the extract extracting is connected to the extractant entrance of second level extraction workshop section blender 1.
This process method equipment works well, and simple to operate in the extraction feeds such as tobacco tobacco leaf, water-soluble active principle single extraction rate is 62% flexibly, and the extract density extracting is 1.0710g/m
3.
Embodiment 3
As shown in Figure 1, for tobacco sheets by paper making method continuous extraction apparatus schematic diagram, described tobacco sheets by paper making method continuous extraction apparatus is comprised of one-level extraction workshop section, described one-level extraction workshop section by blender 1, the first conveying worm 2, fall streaming extraction tower 3, middle underflow pump 4, press master 5, fluffer 6, the second conveying worm 7 and form.The material outlet of blender 1 is connected with the material inlet of the first conveying worm 2, the material outlet of the first conveying worm 2 connects the top material entrance that falls streaming extraction tower 3, the material inlet of streaming extraction tower 3 bottom material outlets connection middle underflow pumps 4 falls, middle underflow pump 4 material outlets connect the material inlet of press master 5, the concentrated material outlet of press master 5 connects the material inlet of fluffer 6, the material outlet of fluffer 6 connects the material inlet of conveying worm 7, and the material outlet of conveying worm 7 is connected to beater floor; The extract outlet of press master 5 is connected to extract concentration section.
Described blender 1 is the high dense blender of rotor.Described falls streaming extraction tower 3 for the common cylindrical streaming high density hypo tower that falls in pulping and paper-making field, and tower bottom disposes the scraper plate discharger of rotation.Described press master 5 is Var-nip press.Described fluffer 6 is the common high density bleaching fluffer in pulping and paper-making field.Described middle underflow pump 4, conveying worm 7 are the known equipment of the art personnel.
Adopt the tobacco sheets by paper making method continuous extration method of said apparatus as follows:
The first step: the offal tobacco leaf of separating after fibre is sent into blender 1 as extraction feed, after extractant through being 85 ℃ with temperature mixes by weight 1:3, by the first conveying worm 2, send into fall in streaming extraction tower 3 and extract, described extractant is water, and extraction time is 60 minutes.
Second step: after extraction feed extracts in falling streaming extraction tower 3, by the scraper plate discharger that falls the setting of streaming tower bottom, material is sent into middle underflow pump 4, then be pumped into by middle underflow pump 4 Separation of Solid and Liquid that press master 5 carries out extraction feed and extract;
The 3rd step: the material that the isolated solid weight concentration of press master 5 is 30% is discongested after dispersion through fluffer 6, is transported to beater floor by conveying worm 7, and the extract extracting is admitted to extract concentration section and carries out filtering and concentrating.
This process method equipment works well, and simple to operate in the extraction feeds such as tobacco tobacco leaf, water-soluble active principle single extraction rate is 45% flexibly, and the extract density extracting is 1.0388g/m
3.
Claims (9)
1. a tobacco sheets by paper making method continuous extraction apparatus, it is characterized in that, comprise at least one-level extraction workshop section, every grade of extraction workshop section comprises blender (1), the first conveying worm (2), streaming extraction tower (3) falls, middle underflow pump (4), press master (5), fluffer (6) and the second conveying worm (7), blender (1), the first conveying worm (2), falling streaming extraction tower (3) is connected successively with middle underflow pump (4), the material outlet of middle underflow pump (4) connects the material inlet of press master (5), the concentrated material outlet of press master (5) connects fluffer (6), fluffer (6) connects the second conveying worm (7), the material outlet of the second conveying worm (7) is connected to extraction material inlet or the beater floor of the blender (1) of next stage extraction workshop section, the extract outlet of press master (5) is connected to the extractant entrance of the blender (1) of extract concentration section or upper level extraction workshop section.
2. tobacco sheets by paper making method continuous extraction apparatus as claimed in claim 1, is characterized in that, described blender is the high dense blender of disc type or the high dense blender of rotor.
3. tobacco sheets by paper making method continuous extraction apparatus as claimed in claim 1, is characterized in that, described falls streaming extraction tower for the high dense streaming bleaching tower that falls.
4. tobacco sheets by paper making method continuous extraction apparatus as claimed in claim 1, is characterized in that, described press master is Var-nip press or acroll press washer.
5. tobacco sheets by paper making method continuous extraction apparatus as claimed in claim 1, is characterized in that, described fluffer is high density bleaching fluffer.
6. a continuous extration method for tobacco sheets by paper making method, is characterized in that, adopts tobacco sheets by paper making method continuous extraction apparatus claimed in claim 1, and the extraction step of every grade of extraction workshop section is:
The first step: extraction material is sent into blender (1), with temperature be the extractant of 35～85 ℃ by weight after 1:3-1:8 mixes, by the first conveying worm (2), send into fall in streaming extraction tower (3) and extract;
Second step: after extraction material extracts in falling streaming extraction tower (3), material is sent into middle underflow pump (4), then be pumped into by middle underflow pump (4) Separation of Solid and Liquid that press master (5) extracts material and extract;
The 3rd step: the material that the isolated solid weight concentration of press master (5) is 20%～30% is discongested after dispersion through fluffer (6), through the second conveying worm (7), be transported to next stage extraction workshop section or beater floor, the extract extracting is admitted to extract concentration section to carry out filtering and concentrating or is back to upper level extraction workshop section carrying out cycling extraction.
7. the continuous extration method of tobacco sheets by paper making method as claimed in claim 6, is characterized in that, the extraction material in the described first step is that offal tobacco leaf or the upper level separated after fibre extract workshop section through separation and discongest the material after dispersion.
8. the continuous extration method of tobacco sheets by paper making method as claimed in claim 6, is characterized in that, the extractant in the described first step is water, the extract extracting from next stage extraction workshop section or their mixture.
9. the continuous extration method of tobacco sheets by paper making method as claimed in claim 6, is characterized in that, the extraction time in the described first step is 20-60 minute.
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| CN201110381392.7A CN102488319B (en) | 2011-11-27 | 2011-11-27 | Continuous extraction method and device of papermaking reconstituted tobacco |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102920012B (en) * | 2012-09-03 | 2016-04-20 | 上海聚华科技股份有限公司 | Method for reproducing tobacco stem shreds through tobacco leaves |
| CN102871212B (en) * | 2012-10-08 | 2014-10-08 | 安徽中烟工业有限责任公司 | Method for producing paper-making reconstituted tobacco |
| CN105167155B (en) * | 2015-08-10 | 2017-07-07 | 中国海诚工程科技股份有限公司 | The production method and device of a kind of reconstituted tobacoo |
| CN105495675B (en) * | 2016-01-19 | 2017-01-25 | 山东瑞博斯烟草有限公司 | Method and device for extracting and scattering tobacco stems synchronously |
| CN107692301B (en) * | 2017-11-10 | 2023-07-28 | 福建中烟工业有限责任公司 | Extraction device for reconstituted tobacco by papermaking method and process for preparing reconstituted tobacco |
| KR20220122682A (en) * | 2019-12-30 | 2022-09-02 | 필립모리스 프로덕츠 에스.에이. | Extraction device with screw conveyor for tobacco material |
| CN112369648A (en) * | 2020-12-03 | 2021-02-19 | 湖北中烟工业有限责任公司 | Method for leaching raw materials of paper-making reconstituted tobacco |
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| CN102488319A (en) | 2012-06-13 |
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