CN111000279A - Tobacco leaf processing method - Google Patents
Tobacco leaf processing method Download PDFInfo
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- CN111000279A CN111000279A CN201911327626.2A CN201911327626A CN111000279A CN 111000279 A CN111000279 A CN 111000279A CN 201911327626 A CN201911327626 A CN 201911327626A CN 111000279 A CN111000279 A CN 111000279A
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- leaves
- tobacco
- size
- class
- screening
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- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 105
- 238000003672 processing method Methods 0.000 title claims abstract description 17
- 244000061176 Nicotiana tabacum Species 0.000 title 1
- 241000208125 Nicotiana Species 0.000 claims abstract description 104
- 238000000926 separation method Methods 0.000 claims abstract description 60
- 238000012216 screening Methods 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 235000019504 cigarettes Nutrition 0.000 description 6
- 239000012634 fragment Substances 0.000 description 3
- 238000007873 sieving Methods 0.000 description 2
- 241000037488 Coccoloba pubescens Species 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
-
- 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
- A24B3/16—Classifying or aligning leaves
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B7/00—Cutting tobacco
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- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to the technical field of threshing and redrying production process processing, and particularly discloses a tobacco leaf processing method, which comprises the following steps: s1: processing the threshed tobacco leaves by adopting at least one stage of wind separation in a first range of frequency; s2: screening the residual tobacco leaves processed in the step S1 by adopting at least one grade of wind in a second range frequency higher than the first range frequency to screen out leaves with the size larger than or equal to the first size; s3: and cutting the blades which are sieved out and are larger than or equal to the first size to obtain the blades which are smaller than the second size, and classifying the blades again and then classifying and collecting the blades. Can solve the problem that the threshing strength is low, the large-area ratio can be improved, and the processing quality can be reduced.
Description
Technical Field
The invention relates to the technical field of threshing and redrying production process processing, in particular to a tobacco leaf processing method.
Background
Before the tobacco leaves are made into cigarettes, the tobacco leaves need to be smashed and then made into cigarettes, and the quality of the cigarettes is directly affected by the quality of the tobacco leaves.
In the prior threshing and redrying method, the threshing procedure of the tobacco leaves is a process of separating the leaves from tobacco stems in a mode of tearing the leaves of the tobacco leaves by friction generated by staggering a beater during high-speed operation and a frame fence, and simultaneously tearing the leaves of the tobacco leaves into proper sizes. For the fine cigarette processing enterprises, the medium-sized leaf with the diameter of 6.35-12.7mm is the most suitable sheet type structure for the production and processing of the fine cigarettes.
In the prior art, the process production process from primary threshing to secondary threshing in the whole-leaf threshing procedure of tobacco leaves comprises the following steps:
1. first-stage threshing: the tobacco leaves are subjected to secondary wetting and then enter a threshing process, and the tobacco leaves uniformly enter a primary threshing machine through a proportional feeder.
2. Multistage air separation: and separating the first-stage threshed leaves from the tobacco stems by adjusting parameters.
3. Screening the blades: and screening the tobacco flakes and the fragments separated from the air.
4. And (3) collecting fragments: and (4) collecting and conveying the screened fragments in a centralized manner.
5. Leaf summarizing: and (4) intensively collecting and conveying the screened tobacco flakes.
6. Secondary threshing: and (4) performing secondary threshing on the leaves, stems with leaves, tobacco stems and the like which are not separated by the multi-stage air separation.
However, the existing threshing process mode in the tobacco industry cannot obtain an ideal sheet-shaped structure, the sheet shape is too large, the length and the width of the leaves are uneven, the leaves with the diameter of more than or equal to 25.4mm in the tobacco leaves obtained through the threshing process link are higher than 30%, and the cut filaments and the super-filaments are too many to influence the efficiency and the quality of cigarettes. If the air frequency is adjusted, the generation of large pieces is intentionally reduced, the breaking rate of tobacco leaves in the threshing process is also caused, and the piece yield is seriously influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a tobacco leaf processing method, which can solve the problems that in the prior art, the crushing rate is improved due to high threshing strength, the processing quality is reduced due to the fact that the large leaf area is increased due to low threshing strength.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
the invention provides a tobacco leaf processing method which is characterized by comprising the following steps:
s1: processing the threshed tobacco leaves by adopting at least one stage of wind separation in a first range of frequency;
s2: screening the residual tobacco leaves processed in the step S1 by adopting at least one grade of wind in a second range frequency higher than the first range frequency to screen out leaves with the size larger than or equal to the first size;
s3: and cutting the blades which are sieved out and are larger than or equal to the first size to obtain the blades which are smaller than the second size, and classifying the blades again and then classifying and collecting the blades.
On the basis of the technical scheme, the air separation in the first range frequency comprises a first-stage air separation, a second-stage air separation and a third-stage air separation, and the frequency of the first-stage air separation is increased in sequence.
On the basis of the above technical solution, S1 specifically includes:
screening the tobacco leaves after threshing by adopting primary air classification, and classifying and vibrating the tobacco leaves screened by the primary air classification, and then classifying and collecting;
screening the tobacco leaves screened by the primary air separation by adopting secondary air separation, and collecting the tobacco leaves screened by the secondary air separation after vibrating and classifying and vibrating the tobacco leaves;
and screening the tobacco leaves subjected to primary air classification screening by adopting tertiary air classification, and collecting the tobacco leaves subjected to primary air classification screening after vibration in a classification vibration screen.
On the basis of the technical scheme, the tobacco leaves screened by the primary air separation, the secondary air separation and the tertiary air separation are subjected to vibration classification and vibration screening and then collected, and the method specifically comprises the following steps:
and performing multistage classification vibration screening on the tobacco leaves screened by the primary air classification, the secondary air classification and the tertiary air classification to obtain first-class leaves, second-class leaves, third-class leaves, fourth-class leaves and stems, and performing classification collection on the first-class leaves, the second-class leaves, the third-class leaves, the fourth-class leaves and the stems.
On the basis of the technical scheme, the longest length of the first type of blade is less than or equal to 2.36 mm;
the longest length of the second type of blade is more than 2.36mm and less than or equal to 6.35 mm;
the longest length of the three types of blades is more than 6.35mm and less than or equal to 12.7 mm;
the longest length of the four types of blades is more than 12.7mm and less than 25.4 mm.
On the basis of the technical scheme, the wind score in the second range frequency comprises a fourth-grade wind score and a fifth-grade wind score, and the frequencies of the wind scores are increased in sequence.
On the basis of the above technical solution, the step S2 specifically includes:
screening the threshed tobacco leaves by adopting four-stage air separation, and screening the leaves with the size larger than or equal to the first size from the tobacco leaves screened by the four-stage air separation in a vibrating manner;
and screening the tobacco leaves subjected to the four-stage air separation by adopting five-stage air separation, and vibrating and screening the tobacco leaves screened by the five-stage air separation to obtain leaves with the size larger than or equal to the first size.
On the basis of the technical scheme, when the leaves with the size larger than or equal to the first size are screened out by vibration from the tobacco leaves screened out by the four-level wind separation and the five-level wind separation, the leaves and the stems with the size smaller than the first size are also screened out by vibration, and are classified.
On the basis of the technical scheme, in the step S3, when classifying the leaves smaller than the second size by vibration screening, classifying the leaves smaller than the first size by vibration screening in the step S2 to obtain first-class leaves, second-class leaves, third-class leaves, fourth-class leaves and stems, and classifying and collecting the first-class leaves, the second-class leaves, the third-class leaves, the fourth-class leaves and the stems.
On the basis of the technical scheme, the first size is 25.4mm in length, and the second size is 12.7mm in length.
Compared with the prior art, the invention has the advantages that: by adopting the tobacco leaf processing method, firstly, at least one stage of air separation in a first range of frequency is adopted to process the threshed tobacco leaves; screening the remaining processed tobacco leaves by adopting at least one stage of wind separation in a second range of frequency higher than the first range of frequency to screen out leaves with the size larger than or equal to the first size; and finally, cutting the blades which are sieved out and are larger than or equal to the first size to obtain the blades which are smaller than the second size, classifying the blades, sieving and classifying the blades again, and then classifying and collecting the blades. Can reduce threshing strength, realize the purposes of reducing the size of tobacco leaves, improving the middle tobacco leaves, improving the length ratio of the tobacco leaves and the like, and can improve the processing efficiency.
Drawings
FIG. 1 is a flow chart of a conventional tobacco lamina processing method in accordance with an embodiment of the present invention;
FIG. 2 is a flow chart of a method of processing tobacco lamina according to an embodiment of the present invention;
FIG. 3 is a detailed flowchart of the intermediate process of the first-stage threshing and the second-stage threshing according to the embodiment of the present invention.
Detailed Description
Embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
FIG. 2 is a flow chart of a method of processing tobacco lamina according to an embodiment of the present invention; fig. 3 is a detailed flowchart of the intermediate process of the primary threshing and the secondary threshing in the embodiment of the present invention, as shown in fig. 2 and fig. 3:
the invention provides a tobacco leaf processing method, which comprises the following steps:
s1: and processing the threshed tobacco leaves by adopting at least one stage of wind separation in the first range of frequency.
Preferably, the air components in the first range of frequencies include a primary air component, a secondary air component and a tertiary air component, and the frequencies thereof increase in sequence.
In this embodiment, the air separation in the first range frequency adopts three-stage air separation which is increased in sequence, so that the tobacco leaves smaller than the first size can be screened out more thoroughly. Wind fractions in the first range of frequencies are generally referred to by those skilled in the art as low frequency wind fractions. Of course, in other embodiments, other multi-stage wind scores may be used to screen the threshed tobacco leaves, and different wind score grades may be adjusted to obtain the desired proportion of different types of tobacco leaves.
Preferably, S1 specifically includes:
screening the tobacco leaves after threshing by adopting primary air separation, and classifying and vibrating the tobacco leaves screened by the primary air separation, and then classifying and collecting.
And screening the tobacco leaves screened by the primary air separation by adopting secondary air separation, and collecting the tobacco leaves screened by the secondary air separation after vibrating and classifying and vibrating the tobacco leaves.
And screening the tobacco leaves subjected to primary air classification screening by adopting tertiary air classification, and collecting the tobacco leaves subjected to primary air classification screening after vibration in a classification vibration screen.
Preferably, the tobacco leaves screened by the primary air separation, the secondary air separation and the tertiary air separation are vibrated to be classified, vibrated, screened and collected, and the method specifically comprises the following steps: and performing multistage classification vibration screening on the tobacco leaves screened by the primary air classification, the secondary air classification and the tertiary air classification to obtain first-class leaves, second-class leaves, third-class leaves, fourth-class leaves and stems, and performing classification collection on the first-class leaves, the second-class leaves, the third-class leaves, the fourth-class leaves and the stems.
Preferably, the longest length of one type of blade is less than or equal to 2.36mm, commonly known to those skilled in the art as fines; the longest length of the second type of blade is greater than 2.36mm and less than or equal to 6.35mm, commonly known as chips by those skilled in the art; the longest length of the three types of leaflets, commonly referred to as leaflets by those skilled in the art, is greater than 6.35mm and less than or equal to 12.7 mm; the longest length of the four types of blades is greater than 12.7mm and less than 25.4mm, commonly known to those skilled in the art as the midleaf; greater than or equal to 25.4mm and commonly known to those skilled in the art as big leaves.
S2: and screening the residual tobacco leaves processed in the step S1 by adopting at least one grade of wind in a second range frequency higher than the first range frequency, and screening out the leaves with the size larger than or equal to the first size.
Preferably, the wind fractions in the second range of frequencies include a fourth-order wind fraction and a fifth-order wind fraction, and the frequencies thereof increase in sequence.
In this embodiment, the air separation in the second range frequency adopts two-stage air separation which is increased in sequence, so that the tobacco leaves larger than the first size can be screened out more thoroughly. Wind fractions in the second range of frequencies are generally referred to by those skilled in the art as high frequency wind fractions. Of course, in other embodiments, other multi-stage wind scores may be used to screen the threshed tobacco leaves, and different wind score grades may be adjusted to obtain the desired proportion of different types of tobacco leaves.
Preferably, the step S2 specifically includes: screening the threshed tobacco leaves by adopting four-stage air separation, and screening the leaves with the size larger than or equal to the first size from the tobacco leaves screened by the four-stage air separation in a vibrating manner; and screening the tobacco leaves subjected to the four-stage air separation by adopting five-stage air separation, and vibrating and screening the tobacco leaves screened by the five-stage air separation to obtain leaves with the size larger than or equal to the first size.
Preferably, when the leaves with the size larger than or equal to the first size are screened out by vibration from the tobacco leaves screened out by the fourth-stage air separation and the fifth-stage air separation, the leaves and the stems with the size smaller than the first size are also screened out by vibration and classified.
S3: and cutting the blades which are sieved out and are larger than or equal to the first size to obtain the blades which are smaller than the second size, and classifying the blades again and then classifying and collecting the blades.
Preferably, in the step S3, when classifying the leaves smaller than the second size by vibration screening, classifying the leaves smaller than the first size by vibration screening in the step S2 to obtain first class leaves, second class leaves, third class leaves, fourth class leaves and stems, and classifying and collecting the first class leaves, the second class leaves, the third class leaves, the fourth class leaves and the stems.
Preferably, the first dimension is 25.4mm in length and the second dimension is 12.7mm in length. In other embodiments, the second size may be set to other sizes.
In summary, the following steps: by adopting the tobacco leaf processing method, firstly, at least one stage of air separation in a first range of frequency is adopted to process the threshed tobacco leaves; screening the remaining processed tobacco leaves by adopting at least one stage of wind separation in a second range of frequency higher than the first range of frequency to screen out leaves with the size larger than or equal to the first size; and finally, cutting the blades which are sieved out and are larger than or equal to the first size to obtain the blades which are smaller than the second size, classifying the blades, sieving and classifying the blades again, and then classifying and collecting the blades. Can reduce threshing strength, realize the purposes of reducing the size of tobacco leaves, improving the middle tobacco leaves, improving the length ratio of the tobacco leaves and the like, and can improve the processing efficiency.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone with the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, are within the protection scope.
Claims (10)
1. A tobacco leaf processing method is characterized by comprising the following steps:
s1: processing the threshed tobacco leaves by adopting at least one stage of wind separation in a first range of frequency;
s2: screening the residual tobacco leaves processed in the step S1 by adopting at least one grade of wind in a second range frequency higher than the first range frequency to screen out leaves with the size larger than or equal to the first size;
s3: and cutting the blades which are sieved out and are larger than or equal to the first size to obtain the blades which are smaller than the second size, and classifying the blades again and then classifying and collecting the blades.
2. A method of tobacco lamina processing as claimed in claim 1 wherein the air components within the first range of frequencies comprise primary air components, secondary air components and tertiary air components, and wherein the frequencies thereof increase in sequence.
3. The tobacco lamina processing method of claim 2, wherein the S1 specifically comprises:
screening the tobacco leaves after threshing by adopting primary air classification, and classifying and vibrating the tobacco leaves screened by the primary air classification, and then classifying and collecting;
screening the tobacco leaves screened by the primary air separation by adopting secondary air separation, and collecting the tobacco leaves screened by the secondary air separation after vibrating and classifying and vibrating the tobacco leaves;
and screening the tobacco leaves subjected to primary air classification screening by adopting tertiary air classification, and collecting the tobacco leaves subjected to primary air classification screening after vibration in a classification vibration screen.
4. A tobacco leaf processing method according to claim 2,
the tobacco leaves screened by the primary air separation, the secondary air separation and the tertiary air separation are vibrated, classified, vibrated, screened and collected, and all the steps specifically comprise:
and performing multistage classification vibration screening on the tobacco leaves screened by the primary air classification, the secondary air classification and the tertiary air classification to obtain first-class leaves, second-class leaves, third-class leaves, fourth-class leaves and stems, and performing classification collection on the first-class leaves, the second-class leaves, the third-class leaves, the fourth-class leaves and the stems.
5. A tobacco leaf processing method according to claim 4,
the longest length of the blades of one type is less than or equal to 2.36 mm;
the longest length of the second type of blade is more than 2.36mm and less than or equal to 6.35 mm;
the longest length of the three types of blades is more than 6.35mm and less than or equal to 12.7 mm;
the longest length of the four types of blades is more than 12.7mm and less than 25.4 mm.
6. A method of processing tobacco lamina according to claim 1 wherein,
the wind minutes in the second range frequency comprise four-stage wind minutes and five-stage wind minutes, and the frequencies of the wind minutes are sequentially increased.
7. A tobacco leaf processing method according to claim 6,
step S2, specifically including:
screening the threshed tobacco leaves by adopting four-stage air separation, and screening the leaves with the size larger than or equal to the first size from the tobacco leaves screened by the four-stage air separation in a vibrating manner;
and screening the tobacco leaves subjected to the four-stage air separation by adopting five-stage air separation, and vibrating and screening the tobacco leaves screened by the five-stage air separation to obtain leaves with the size larger than or equal to the first size.
8. A tobacco leaf processing method according to claim 6,
and when the leaves with the size larger than or equal to the first size are screened out by vibration screening from the tobacco leaves screened out by the four-stage wind separation and the five-stage wind separation, the leaves and the stems with the size smaller than the first size are also screened out by vibration screening, and the leaves and the stems are classified.
9. A tobacco leaf processing method according to claim 6,
in the step S3, when classifying the leaves smaller than the second size by vibration, classifying the leaves smaller than the first size by vibration at the same time in the step S2 to obtain first class leaves, second class leaves, third class leaves, fourth class leaves and stalks, and classifying and collecting the first class leaves, the second class leaves, the third class leaves, the fourth class leaves and the stalks.
10. A method of tobacco lamina processing as in claim 1 wherein the first dimension is 25.4mm in length and the second dimension is 12.7mm in length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911327626.2A CN111000279A (en) | 2019-12-20 | 2019-12-20 | Tobacco leaf processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911327626.2A CN111000279A (en) | 2019-12-20 | 2019-12-20 | Tobacco leaf processing method |
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| CN111000279A true CN111000279A (en) | 2020-04-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113180270A (en) * | 2021-04-30 | 2021-07-30 | 河南中烟工业有限责任公司 | Method for recycling storage-stagnating raw materials |
| CN118104858A (en) * | 2024-03-13 | 2024-05-31 | 红云红河烟草(集团)有限责任公司 | Method and system for regulating tobacco structure of medium-length cigarettes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113180270A (en) * | 2021-04-30 | 2021-07-30 | 河南中烟工业有限责任公司 | Method for recycling storage-stagnating raw materials |
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| CN118104858A (en) * | 2024-03-13 | 2024-05-31 | 红云红河烟草(集团)有限责任公司 | Method and system for regulating tobacco structure of medium-length cigarettes |
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