CN109527634B - Threshing method for reducing stem content of secondary processing tobacco flakes - Google Patents
Threshing method for reducing stem content of secondary processing tobacco flakes Download PDFInfo
- Publication number
- CN109527634B CN109527634B CN201811346971.6A CN201811346971A CN109527634B CN 109527634 B CN109527634 B CN 109527634B CN 201811346971 A CN201811346971 A CN 201811346971A CN 109527634 B CN109527634 B CN 109527634B
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- threshing
- tobacco
- stem
- grade
- leaves
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- 241000208125 Nicotiana Species 0.000 title claims abstract description 58
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012545 processing Methods 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000013461 design Methods 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 238000010009 beating Methods 0.000 claims description 7
- 238000009736 wetting Methods 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 abstract description 13
- 239000002994 raw material Substances 0.000 description 10
- 238000011161 development Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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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
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B5/00—Stripping tobacco; Treatment of stems or ribs
- A24B5/06—Stripping tobacco; Treatment of stems or ribs by stripping leaf-parts from the stem
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B5/00—Stripping tobacco; Treatment of stems or ribs
- A24B5/16—Other treatment of stems or ribs, e.g. bending, chopping, incising
Abstract
The invention provides a threshing method for reducing the stem content of secondary processing tobacco strips, which comprises the following specific steps: (1) before the tobacco moistening procedure, detecting the stem content of tobacco leaves of each processing grade, calculating the composite stem content according to the feeding proportion, and dividing the tobacco leaves of the mixed grade into three types according to the stem content of less than 1.8 percent, 1.8-3.0 percent and more than 3.0 percent; (2) the method comprises the steps of (1) carrying out online selection, leaf moistening and impurity removal on mixed-grade tobacco leaves, then feeding the mixed-grade tobacco leaves into a threshing production line, then threshing the mixed-grade tobacco leaves for four times, firstly determining whether a frame fence is arranged according to different stem content rates, then setting the shape and the size of the frame fence and the rotating speed of a threshing roller, and (3) carrying out threshing, normally redrying the leaves, and separately collecting and boxing tobacco stems. The invention has simple process, reasonable design, strong operability and easy production implementation, optimizes the structure of the tobacco sheet, reduces the stem removing strength in the production process of the cigarette, and reduces the tobacco shred loss in the stem removing process.
Description
Technical Field
The invention belongs to the technical field of tobacco threshing and redrying, and particularly relates to a threshing method for reducing the stem content of secondary processing tobacco strips.
Background
The development scale of the cigarettes tends to be stable, and the quality and the structure of the cigarettes tend to be improved to ensure the stable increase of the tax. Therefore, the requirements of cigarette development on the quality of raw materials are also improved, and particularly, the requirements on the quality of the raw materials of tobacco leaves are higher due to the rapid development of fine cigarettes. The raw material supply of the current cigarette industry enterprises has two problems, one is that the stock raw material grade structure can not meet the requirement of cigarette brand improvement structure; on the other hand, the stem content in the raw material leaves of the tobacco flakes is higher, and the requirement of high quality of the thin cigarettes cannot be met. Therefore, part of industrial enterprises carry out secondary formula processing on the raw materials of the stored tobacco flakes, and the requirement of upgrading the raw materials is met. Meanwhile, in recent years, the stem content of the raw material leaves of the tobacco sheets is higher, most of the stems are more than 1.8 percent, and especially, the content of the raw material of the imported tobacco leaves is more than 3-5 percent. Therefore, if the stem content in the leaves is reduced by technical means, the important technical problem which needs to be solved urgently is solved. The following table shows the content of 25 grades of tobacco stems counted by the inventor.
Content distribution of 25-grade tobacco stems of tobacco lamina stocked in 2013-2015 year
| Categories | < 1.8% grade (size) | 1.8-3.0% grade (size) | Grade > 3.0% () |
| Domestic tobacco leaf | 2 | 13 | 3 |
| Imported tobacco leaf | 0 | 2 | 5 |
At present, most of domestic cigarette high-end and fine cigarette raw materials are purified and impurity-reduced mainly in a manual leaf selection mode, and the stem content in leaves is reduced, but the selection treatment cost is high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a threshing method for reducing the stem content of secondary processing tobacco strips, and the aim of reducing the stem content is fulfilled by a threshing and redrying plant production line and a method of threshing frame column combination, size setting and rotation speed scientific design.
The technical scheme provided by the invention is as follows: a threshing method for reducing the stem content of secondary processing tobacco flakes comprises the following specific steps:
(1) before the tobacco moistening procedure, detecting the stem content of tobacco leaves of each processing grade, calculating the composite stem content according to the feeding proportion, and dividing the tobacco leaves of the mixed grade into three types according to the stem content of less than 1.8 percent, 1.8-3.0 percent and more than 3.0 percent;
(2) the mixed-grade tobacco leaves are subjected to links of on-line selection, leaf moistening and impurity removal, enter a threshing production line, are threshed for four times, whether frame rails are arranged or not is determined according to different stem-containing rates after threshing each time, and then specific frame rail shapes and sizes and threshing roller rotating speeds are set for threshing.
The design requirements of the specific threshing parameters are as follows:
setting of frame fence for threshing leaves from one to four
② threshing frame size requirement
③ design of the rotational speed of the beating roller (r/min)
(3) After threshing, the leaves are normally redried, and the tobacco stems are separately collected and boxed.
The invention has the advantages that: (1) the method has the advantages of simple process, scientific and reasonable design, strong operability and easy implementation of workshop production;
(2) the invention realizes the process requirement of reducing the stem content by means of threshing equipment and corresponding process parameters, and specifically realizes threshing by combining frame rails with different shapes, such as mutually combining a hexagonal frame rail and a circular frame rail, respectively adopting circular and hexagonal frame rails with different sizes in four threshing processes, and also mainly adjusting the process parameters corresponding to threshing sections, specifically adjusting the rotating speed of a threshing roller, so that the tobacco stem content of the secondary sheet tobacco processed by the invention is greatly reduced from 1.60-4.80% to 0.58-1.51%, and the stem removing rate is 1.095-2.41%; the structure of the tobacco flakes is optimized, the large flake rate is reduced, and the medium flake rate and the small flake rate are improved.
(3) The stem removing strength in the cigarette production process is reduced, and the tobacco shred loss in the stem removing process is reduced.
Detailed Description
The present invention will be further described with reference to the following specific examples.
The experimental site: production line of certain redrying plant
(1) Before the tobacco moistening procedure, the stem content of tobacco leaves of each processing grade is detected, the grade of raw tobacco is totally fed according to the feeding proportion to form 3 grades of secondary finished products, and the mixed grade tobacco leaves are divided into three types according to the stem content of less than 1.8%, 1.8-3.0% and more than 3.0%, wherein the specific proportion and the stem content are as follows:
(2) and calculating the composite stalk content of the tobacco flakes to be processed according to the detection result of the stalk content in the secondary formula processing grade leaves and the mixture ratio.
After the links of on-line selection, leaf moistening, impurity removal and the like are carried out on the mixed grade, the leaf beating process is carried out respectively according to the process technical parameters given in the following table.
(3) The leaves are normally redried, and the tobacco stems are separately collected and boxed.
The test effect of the invention is verified:
the stem content of the tobacco leaves treated by the method is compared and analyzed with that of the tobacco leaves before treatment:
| examples | Grade of finished product | The stem content before processing | The processed tobacco stem contains | Percent of stem removed |
| A | EC003 | 1.675 | 0.58 | 1.095 |
| II | EC005 | 2.82 | 0.88 | 1.94 |
| III | EC006 | 3.92 | 1.51 | 2.41 |
The tobacco flake structure is optimized, and the content proportion of different leaves changes (%) before and after processing:
from the detection data and analysis conditions before and after the processing of the tobacco flakes, the tobacco stem content is greatly reduced from 1.60-4.80 percent to 0.58-1.51 percent, and the stem removing rate is 1.095-2.41 percent. The structure of the tobacco flakes is optimized, and the method is more suitable for the production requirement of cigarette cut tobacco, wherein the large flake rate is greatly reduced, the medium flake rate is slightly improved, and the small flake rate and the large fragment rate are obviously increased. The tobacco stem content of the tobacco flakes is obviously reduced, the stem removing strength in the cigarette production process is obviously reduced, and the tobacco shred loss in the stem removing process is reduced.
The above description is only a detailed description of specific embodiments of the present invention, and should not be taken as limiting the invention, and any modifications, equivalents, improvements, etc. made on the design concept of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. A threshing method for reducing the stem content of secondary processing tobacco lamina is characterized by comprising the following specific steps:
(1) before the tobacco moistening procedure, detecting the stem content of tobacco leaves of each processing grade, calculating the composite stem content according to the feeding proportion, and dividing the tobacco leaves of the mixed grade into three types according to the stem content of less than 1.8 percent, 1.8-3.0 percent and more than 3.0 percent;
(2) performing four threshing after the mixed-grade tobacco leaves are subjected to links of online selection, wetting and impurity removal, entering a threshing production line, determining whether a frame rail is arranged or not according to different stem-containing rates during each threshing, and then setting the shape and size of the frame rail and the rotating speed of a threshing roller to perform threshing;
the design requirements of the specific threshing parameters are as follows:
setting of frame fence for threshing leaves from one to four
② threshing frame size requirement
③ design of the rotational speed of the beating roller (r/min)
(3) After threshing, the leaves are normally redried, and the tobacco stems are separately collected and boxed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346971.6A CN109527634B (en) | 2018-11-13 | 2018-11-13 | Threshing method for reducing stem content of secondary processing tobacco flakes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811346971.6A CN109527634B (en) | 2018-11-13 | 2018-11-13 | Threshing method for reducing stem content of secondary processing tobacco flakes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109527634A CN109527634A (en) | 2019-03-29 |
| CN109527634B true CN109527634B (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811346971.6A Active CN109527634B (en) | 2018-11-13 | 2018-11-13 | Threshing method for reducing stem content of secondary processing tobacco flakes |
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| Country | Link |
|---|---|
| CN (1) | CN109527634B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505213A (en) * | 1994-11-01 | 1996-04-09 | Webb; Marshall W. | Load control doffer |
| CA2275417A1 (en) * | 1996-12-17 | 1998-06-25 | William Cunningham | Method and apparatus for processing tobacco |
| CN101322577A (en) * | 2007-06-15 | 2008-12-17 | 武汉烟草(集团)有限公司 | Threshing and redrying method for reducing stem percentage of cigarette slice and stem-extracting tool |
| CN202760159U (en) * | 2012-08-29 | 2013-03-06 | 湖北烟草金叶复烤有限责任公司襄阳复烤厂 | Threshing frame of aromatic tobacco production thresher |
| CN103393211A (en) * | 2013-08-02 | 2013-11-20 | 云南昆船设计研究院 | Leaf-threshing and stem-removing technology with leaf-threshing wind separation quality capable of being detected and controlled on line |
| WO2015101558A1 (en) * | 2013-12-31 | 2015-07-09 | Philip Morris Products S.A. | Method of treating whole tobacco leaf |
| CN205432094U (en) * | 2016-03-24 | 2016-08-10 | 吴建良 | A frame fence that it is quick -witted that is used for tobacco to beat leaf |
| CN106617251A (en) * | 2017-01-04 | 2017-05-10 | 湖北中烟工业有限责任公司 | Threshing and re-drying processing method of high-grade tobacco leaf raw materials |
| CN206150434U (en) * | 2016-10-31 | 2017-05-10 | 湖北中烟工业有限责任公司 | Hexagon and circular combination beat leaf frame fence |
| CN107647470A (en) * | 2017-09-12 | 2018-02-02 | 河南中烟工业有限责任公司 | Beating and double roasting processing method that is a kind of while regulating and controlling the rate containing stalk in tobacco strip structure and leaf |
| CN108260847A (en) * | 2018-01-31 | 2018-07-10 | 湖北中烟工业有限责任公司 | The method of cigarette eliminating stems label process loss is reduced by reducing in leaf rate containing stalk |
-
2018
- 2018-11-13 CN CN201811346971.6A patent/CN109527634B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5505213A (en) * | 1994-11-01 | 1996-04-09 | Webb; Marshall W. | Load control doffer |
| CA2275417A1 (en) * | 1996-12-17 | 1998-06-25 | William Cunningham | Method and apparatus for processing tobacco |
| CN101322577A (en) * | 2007-06-15 | 2008-12-17 | 武汉烟草(集团)有限公司 | Threshing and redrying method for reducing stem percentage of cigarette slice and stem-extracting tool |
| CN202760159U (en) * | 2012-08-29 | 2013-03-06 | 湖北烟草金叶复烤有限责任公司襄阳复烤厂 | Threshing frame of aromatic tobacco production thresher |
| CN103393211A (en) * | 2013-08-02 | 2013-11-20 | 云南昆船设计研究院 | Leaf-threshing and stem-removing technology with leaf-threshing wind separation quality capable of being detected and controlled on line |
| WO2015101558A1 (en) * | 2013-12-31 | 2015-07-09 | Philip Morris Products S.A. | Method of treating whole tobacco leaf |
| CN205432094U (en) * | 2016-03-24 | 2016-08-10 | 吴建良 | A frame fence that it is quick -witted that is used for tobacco to beat leaf |
| CN206150434U (en) * | 2016-10-31 | 2017-05-10 | 湖北中烟工业有限责任公司 | Hexagon and circular combination beat leaf frame fence |
| CN106617251A (en) * | 2017-01-04 | 2017-05-10 | 湖北中烟工业有限责任公司 | Threshing and re-drying processing method of high-grade tobacco leaf raw materials |
| CN107647470A (en) * | 2017-09-12 | 2018-02-02 | 河南中烟工业有限责任公司 | Beating and double roasting processing method that is a kind of while regulating and controlling the rate containing stalk in tobacco strip structure and leaf |
| CN108260847A (en) * | 2018-01-31 | 2018-07-10 | 湖北中烟工业有限责任公司 | The method of cigarette eliminating stems label process loss is reduced by reducing in leaf rate containing stalk |
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| Publication number | Publication date |
|---|---|
| CN109527634A (en) | 2019-03-29 |
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