CN111528510B - Method for drying tobacco shreds, tobacco products and application - Google Patents
Method for drying tobacco shreds, tobacco products and application Download PDFInfo
- Publication number
- CN111528510B CN111528510B CN202010393135.4A CN202010393135A CN111528510B CN 111528510 B CN111528510 B CN 111528510B CN 202010393135 A CN202010393135 A CN 202010393135A CN 111528510 B CN111528510 B CN 111528510B
- Authority
- CN
- China
- Prior art keywords
- temperature
- tobacco
- cut
- airflow
- drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- A24B3/04—Humidifying or drying tobacco bunches or cut 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
- A24B3/00—Preparing tobacco in the factory
- A24B3/16—Classifying or aligning leaves
Abstract
The invention belongs to the field of tobacco products, and relates to a method for drying cut tobacco, which comprises the following steps: (1) drying the cut tobacco to obtain dried materials at 50-80 ℃; (2) processing the dried material by a vibration tank, wherein the conveying speed is 0.26-0.35 m/s, the time is 35-50 s, the vibration frequency is 4.10-4.70 Hz, and the amplitude is 23-30 mm, so as to obtain a first material; (3) conveying the first material by using a belt conveyor and radiating the heat, wherein the conveying speed is 0.6-0.7 m/s, and the time is 8-40 s, so as to obtain a second material; (4) carrying out airflow separation on the second material, wherein the airflow velocity is 4.3-6.8 m/s, and the temperature is not higher than that of the second material, so as to obtain a material; (5) processing the material obtained in the step (4) in a vibration tank to obtain a third material; (6) and (3) separating the third material gas flow. The invention relates to tobacco shreds, tobacco products and application. The method of the invention reduces the breakage rate of the tobacco shreds, improves the filling value, reduces the proportion of yellow spot tobacco and moldy tobacco in the cigarettes and improves the sensory quality of the cigarettes.
Description
Technical Field
The invention belongs to the technical field of tobacco products, and particularly relates to a method for drying cut tobacco, the cut tobacco prepared by the method, the tobacco product and application of the cut tobacco.
Background
In the production and processing process of cigarettes, tobacco shred drying is an important process in cigarette making, and the sensory quality and the physical quality of products are directly influenced. The main purpose of the tobacco shred drying is to obtain the moisture content of the tobacco shreds suitable for rolling cigarettes, and sundries such as stems, wet mass, tobacco scale and the like in the tobacco shred materials are also removed in the tobacco shred drying process. The stem sticks refer to strip-shaped tobacco stems with small sizes contained in tobacco shred materials, and the harm is that the cigarettes are easy to puncture, so that the fluctuation of smoke indexes is caused, and the quality of the cigarettes is unstable; the wet mass is a mass which is formed by curling and agglomerating a small amount of wet tobacco shreds and is difficult to dry inside, and once the mass is mixed into qualified tobacco shreds, the moisture content of local tobacco shreds is increased, so that the yellow spot tobacco and/or cigarettes are mildewed; the tobacco scale is a solid or semi-solid substance generated by depositing and cooling tobacco tar and a substance formed by burning or partially burning the tobacco tar, and the sensory quality and the product stability of cigarette products are influenced when the tobacco scale is mixed into qualified cut tobacco.
In the tobacco industry, one-stage or two-stage air separation (air separation) is generally adopted to remove impurities in tobacco shred materials, and the tobacco shred materials need to be loosened before air separation. However, the shredded tobacco prepared by the prior art has high breakage rate, low filling value and poor stability, the problems of yellow spots and mildew of the prepared cigarette are prominent, and the sensory quality and the product stability of the cigarette are poor.
Therefore, a method for drying the cut tobacco is needed at present, which reduces the breakage rate of the cut tobacco, improves the filling value of the cut tobacco, reduces the proportion of yellow spot tobacco and moldy tobacco in the manufactured cigarette and improves the sensory quality and the stability of the cigarette.
Disclosure of Invention
The common tobacco shred drying process in the tobacco industry adopts two-stage air separation (air flow separation) to remove impurities in tobacco shred materials, and the tobacco shred materials need to be loosened before each stage of air separation, but the prepared tobacco shreds have the problems of high breakage rate, low filling value, prominent yellow spots and mildew problems of cigarettes, poor sensory quality of cigarettes and the like, and moreover, the technical personnel in the field can not find the reasons for the quality problems. The inventor of the invention creatively discovers through a great deal of experimental research: the main reasons for prominent yellow spots and mildew problems of cigarettes and poor sensory quality are that wet lumps and tobacco scales in tobacco shreds are scattered and cannot be removed by two-stage air separation due to the loosening treatment before the first-stage air separation; the high shredding rate and low filling value of the cut tobacco are mainly related to primary air separation parameters (air flow temperature and flow velocity) and loosening treatment parameters. Based on the above, the inventor of the invention creatively provides a method for drying tobacco shreds, which is used for processing through a vibration groove with specific parameters, a belt conveyor with specific parameters and primary air separation with specific parameters, so that the crushing rate of the tobacco shreds is effectively reduced, the filling value of the tobacco shreds is improved, the proportion of yellow spot cigarettes and moldy cigarettes in cigarettes is reduced, and the sensory quality of the cigarettes is improved. On the basis, the inventor also provides the prepared cut tobacco, tobacco products and application of the cut tobacco.
A first aspect of the invention relates to a method of drying cut tobacco, comprising the steps of:
(1) drying tobacco shreds to obtain dried material with a temperature of 50-80 deg.C (such as 55 deg.C, 58 deg.C, 60 deg.C, 61 deg.C, 63 deg.C, 65 deg.C, 68 deg.C, 70 deg.C, 71 deg.C, 72 deg.C, 74 deg.C, 76 deg.C, 78 deg.C) and a water content of 10-20% (such as 11%, 12%, 13%, 13.1%, 13.3%, 13.5%, 13.8%, 13.9%, 14%, 14.2%, 14.3%, 14.6%, 15%, 16%, 17%, 18%, 19%);
(2) treating the dried material by using a vibration tank at an ambient temperature and an ambient relative humidity, wherein the conveying speed is 0.26-0.35 m/s (such as 0.28m/s, 0.30m/s, 0.32m/s and 0.33m/s), the conveying time is 35-50 s (such as 36s, 37s, 38s, 39s, 40s, 41s, 42s, 43s, 44s, 45s, 46s, 47s, 48s and 49s), the vibration frequency is 4.10-4.70 Hz (such as 4.2Hz, 4.3Hz, 4.33Hz, 4.4Hz, 4.5Hz and 4.6Hz), the vibration amplitude is 23-30 mm (such as 24mm, 25mm, 26mm, 27mm, 28mm and 29mm), so as to obtain a first material, and the temperature of the first material is higher than the ambient temperature and lower than the temperature of the dried material;
(3) conveying the first material by using a belt conveyor at an ambient temperature and an ambient relative humidity, and dissipating heat in the conveying process, wherein the conveying speed is 0.6-0.7 m/s (such as 0.61m/s, 0.62m/s, 0.63m/s, 0.64m/s, 0.65m/s, 0.66m/s, 0.67m/s, 0.68m/s and 0.69m/s), the conveying time is 8-40 s (such as 9s, 10s, 11s, 12s, 13s, 14s, 15s, 16s, 17s, 18s, 19s, 20s, 21s, 22s, 23s, 24s, 25s, 26s, 27s, 29s, 30s, 32s, 34s, 36s and 38s), the second material is obtained, and the temperature of the second material is higher than the ambient temperature and lower than the temperature of the first material;
(4) subjecting the second material to gas flow separation at a flow rate of 4.3 to 6.8m/s (e.g. 4.4m/s, 4.5m/s, 4.6m/s, 4.7m/s, 4.8m/s, 4.9m/s, 5m/s, 5.1m/s, 5.2m/s, 5.3m/s, 5.4m/s, 5.5m/s, 5.6m/s, 5.7m/s, 5.8m/s, 5.9m/s, 6m/s, 6.1m/s, 6.2m/s, 6.3m/s, 6.4m/s, 6.5m/s, 6.6m/s, 6.7m/s), the temperature of the gas flow being higher than ambient temperature and not higher than the temperature of the second material, collecting the material;
(5) processing the material collected in the step (4) by using a vibrating groove at ambient temperature and ambient relative humidity, wherein the conveying speed is 0.18-0.24 m/s (such as 0.19m/s, 0.2m/s, 0.21m/s, 0.22m/s and 0.23m/s), the conveying time is 10-30 s (such as 12s, 13s, 14s, 15s, 16s, 17s, 18s, 19s, 20s, 21s, 22s, 24s, 25s, 26s, 27s and 28s), the vibration frequency is 5.30-6.00 Hz (such as 5.4Hz, 5.5Hz, 5.52Hz, 5.6Hz, 5.7Hz, 5.8Hz and 5.9Hz), the amplitude is 16-21 mm (such as 17mm, 18mm, 19mm and 20mm), and obtaining a third material;
(6) subjecting the third material to air flow sorting, wherein the temperature of the air flow is the same as the ambient temperature, the flow velocity of the air flow is 2.8-6 m/s (such as 2.9m/s, 3m/s, 3.1m/s, 3.2m/s, 3.4m/s, 3.6m/s, 3.7m/s, 3.8m/s, 3.9m/s, 4m/s, 4.1m/s, 4.2m/s, 4.5m/s, 4.7m/s, 4.8m/s, 4.9m/s, 5m/s, 5.1m/s, 5.2m/s, 5.3m/s, 5.4m/s, 5.5m/s, 5.7m/s, 5.8m/s, 5.9m/s), and collecting the material;
wherein the ambient temperature is 15 ℃ to 35 ℃ (e.g., 16 ℃, 17 ℃, 18 ℃, 19 ℃, 20 ℃, 22 ℃, 24 ℃, 26 ℃, 28 ℃, 29 ℃, 29.8 ℃, 30.1 ℃, 30.3 ℃, 31 ℃, 32 ℃, 33 ℃, 34 ℃) and the ambient relative humidity is not higher than 70%.
Without being limited by theory, in the method, wet mass, tobacco scale and part of stems with higher density in the cut tobacco can be effectively removed by air flow separation in the step (4), and the rest stems in the cut tobacco can be removed by air flow separation in the step (6).
In some embodiments of the first aspect of the present invention, the moisture content by weight is the weight percentage of water.
In some embodiments of the first aspect of the present invention, the temperature of the first material is between 6 ℃ and 22 ℃ lower than the temperature of the drying material, e.g., 7 ℃, 8 ℃, 9 ℃, 10 ℃, 11 ℃, 13 ℃, 15 ℃, 16 ℃, 18 ℃, 20 ℃, 22 ℃.
In some embodiments of the first aspect of the invention, the temperature of the first material is 41 ℃ to 62 ℃, e.g., 42 ℃, 43 ℃, 44 ℃, 45 ℃, 46 ℃, 47 ℃, 48 ℃, 49 ℃, 50 ℃, 51 ℃, 52 ℃, 53 ℃, 54 ℃, 55 ℃, 56 ℃, 57 ℃, 58 ℃, 59 ℃, 60 ℃, 61 ℃.
In some embodiments of the first aspect of the present invention, the temperature of the second material is 1 ℃ to 9 ℃ lower than the temperature of the first material, e.g., 1 ℃, 2 ℃, 3 ℃, 4 ℃, 5 ℃, 6 ℃, 7 ℃, 8 ℃.
In some embodiments of the first aspect of the invention, the temperature of the second material is 38 ℃ to 56 ℃, for example 38 ℃, 39 ℃, 40 ℃, 41 ℃, 42 ℃, 43 ℃, 44 ℃, 45 ℃, 46 ℃, 47 ℃, 48 ℃, 49 ℃, 50 ℃, 51 ℃, 52 ℃, 54 ℃, 55 ℃.
In some embodiments of the first aspect of the present invention, in step (4), the temperature of the gas stream is between 0 ℃ and 8 ℃, preferably between 0.5 ℃ and 8 ℃, e.g. 1 ℃, 2 ℃, 3 ℃, 4 ℃, 5 ℃, 6 ℃, 7 ℃ lower than the temperature of the second material.
In some embodiments of the first aspect of the present invention, in step (4), the temperature of the gas stream is in the range of 35 ℃ to 50 ℃, e.g., 36 ℃, 37 ℃, 38 ℃, 39 ℃, 40 ℃, 41 ℃, 42 ℃, 43 ℃, 44 ℃, 45 ℃, 46 ℃, 47 ℃, 48 ℃, 49 ℃.
In some embodiments of the first aspect of the present invention, the method has one or more of the following features a to H:
A. in the step (1), the flow rate of the cut tobacco in the drying treatment is 1000-8000 kg/h, such as 1500kg/h, 2400kg/h, 3000kg/h, 4000kg/h, 4800kg/h, 6000kg/h and 7200 kg/h;
B. in the step (1), an airflow cut-tobacco drier or a drum-type cut-tobacco drier is adopted for drying treatment;
C. in the step (2) and/or the step (5), the vibration groove is in an open structure;
D. in the step (3), the belt conveyor is of an open structure;
E. in the step (4) and/or the step (6), a vertical airflow sorting device is adopted for airflow sorting;
F. the temperature of the third material is the same as the ambient temperature;
G. the tobacco shred is selected from flue-cured tobacco shred, tobacco stem shred and burley tobacco shred;
H. the method further comprises step (7): storing the cut tobacco products under the conditions of constant temperature and constant humidity.
In some embodiments of the first aspect of the present invention, the vertical air classifier is a conventional device, also known as a vertical air classifier, and is configured as shown in fig. 1. The vertical airflow sorting device comprises a cavity 6; the upper part of the cavity 6 is provided with a material inlet 1; the bottom of the cavity 6 close to one side of the material inlet 1 is provided with an airflow inlet (heavy object outlet) 2; a material outlet 4 is arranged at the bottom of the cavity 6 opposite to the material inlet 1, and a waste gas outlet 5 is arranged at the top of the cavity 6 opposite to the material inlet 1; and a conveying belt 3 is also arranged between the material inlet 1 and the material outlet 4 in the cavity 6 and used for collecting sorted materials. When in use, the material entering the cavity 6 is driven by airflow; in the process, the heavy objects (such as stems, wet mass or tobacco scale) in the materials fall down and are discharged through the heavy object outlet 2 at the bottom; in the ascending process, part of the materials fall on the conveying belt 3 and are collected through the material outlet 4, namely the sorted materials; the exhaust gas carrying the powder or soot is discharged through the exhaust gas outlet 5.
A second aspect of the invention relates to a tobacco thread obtainable by the method of the first aspect of the invention.
In some embodiments of the second aspect of the present invention, the cut tobacco has a filling value of above 4.0cm3In g, preferably above 4.5cm3In g, e.g. 4.6cm3/g、4.69cm3/g、4.7cm3/g、4.72cm3/g、4.8cm3/g、4.9cm3/g、5.0cm3/g。
A third aspect of the present invention relates to a smoking article comprising a cut filler according to the second aspect of the present invention.
In some embodiments of the third aspect of the present invention, the smoking article is a cigarette.
A fourth aspect of the present invention relates to the use of a tobacco thread according to the second aspect of the present invention for reducing the proportion of macular smoke and/or proportion of moldy smoke in a cigarette.
In the present invention, unless otherwise specified, the "vibration trough" is also referred to as a trough-type vibration conveyor, and refers to a continuous conveying machine that vibrates a trough using a vibration exciter to slide or throw materials in the trough in a certain direction. It is mainly composed of vibration exciter, material groove, main vibration body and machine frame. The vibration groove adopted by the invention is a vibration groove with a conventional structure.
In the present invention, unless otherwise specified, "belt conveyor" refers to a mechanical apparatus that conveys materials by the movement of a conveyor belt. It is composed of flexible endless belt passing through several rollers and supported on many rollers for movement, and drive mechanism.
The invention achieves the following beneficial effects:
the method for drying the cut tobacco effectively reduces the breakage rate of the cut tobacco, improves the filling value of the cut tobacco, reduces the proportion of yellow spot tobacco and moldy tobacco in cigarettes, and improves the sensory quality and the product stability of cigarettes while removing impurities such as stems, wet mass, tobacco scale and the like in the cut tobacco material.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
FIG. 1 is a schematic structural view of a vertical air flow sorting device;
FIG. 2 is a schematic flow diagram of a method of drying cut tobacco according to the present invention;
wherein, 1-material inlet, 2-airflow inlet (heavy object outlet), 3-conveyer belt, 4-material outlet, 5-waste gas outlet, and 6-cavity.
Detailed Description
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying examples, in which some, but not all embodiments of the invention are shown. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The vibration grooves and the belt conveyors used in the following examples and comparative examples were of an open structure.
Example 1
The ambient temperature is 30.3 deg.C and the relative humidity of the environment is not higher than 70%. As shown in fig. 2, the method of drying cured tobacco shred includes:
(1) drying the cured tobacco shreds by adopting an airflow shred dryer with the material flow of 4800kg/h to obtain dried materials with the temperature of 71 +/-3 ℃ and the water content of 14.6 +/-0.4%;
(2) the dried materials are processed by two vibrating grooves (the size of a single vibrating groove: 6 meters in length and 1 meter in width) which are connected in series, the conveying speed is 0.28m/s, the vibration frequency is 4.33Hz, the amplitude is 25mm, and the temperature of the materials at the outlet of the vibrating groove is 55 +/-5 ℃;
(3) cooling the treated material by a belt conveyor, wherein the conveying speed is 0.65-0.70 m/s, the conveying time is 18-21 seconds, and the temperature of the material at the outlet of the belt conveyor is 49 +/-5 ℃;
(4) sorting the materials obtained in the step (3) by a vertical airflow sorting device, keeping the temperature of airflow at 45 +/-3 ℃, and collecting the sorted primary sorted materials, wherein the flow velocity of the airflow is 5.8 +/-0.5 m/s;
(5) a vibration groove (the size is 4 meters long and 1.5 meters wide) is adopted to process the primary selected material, the conveying speed is 0.23m/s, the vibration frequency is 5.52Hz, the amplitude is 20mm, and the temperature of the material at the outlet of the vibration groove is close to the ambient temperature;
(6) sorting the materials obtained in the step (5) by adopting a vertical airflow sorting device, wherein the temperature of airflow is the same as the ambient temperature, the flow velocity of the airflow is 4.1 +/-1 m/s, and the collected and sorted materials are cut tobacco products 1;
(7) and storing the cut tobacco product 1 in a constant-temperature and constant-humidity environment for later use.
Example 2
The ambient temperature is 30.1 deg.C and the relative humidity of the environment is not higher than 70%. As shown in fig. 2, the method of drying cured tobacco shred includes:
(1) drying the cured tobacco shreds by adopting an airflow shred dryer with the material flow of 4800kg/h to obtain dried materials with the temperature of 71 +/-3 ℃ and the water content of 13.8 +/-0.5%;
(2) the dried materials are processed by two vibrating grooves (the size of a single vibrating groove: 6 meters in length and 1 meter in width) which are connected in series, the conveying speed is 0.28m/s, the vibration frequency is 4.33Hz, the amplitude is 28mm, and the temperature of the materials at the outlet of the vibrating groove is 53 +/-5 ℃;
(3) cooling the treated material by a belt conveyor, wherein the conveying speed is 0.67m/s, the conveying time is 18-21 seconds, and the temperature of the material at the outlet of the belt conveyor is 47 +/-5 ℃;
(4) sorting the materials obtained in the step (3) by a vertical airflow sorting device, keeping the temperature of airflow at 45 +/-3 ℃, and collecting the sorted primary materials, wherein the flow velocity of the airflow is 5.3 +/-0.5 m/s;
(5) a vibration groove (the size of the vibration groove is 4 meters long and 1.5 meters wide) is adopted to process the primary selected material, the conveying speed is 0.23m/s, the vibration frequency is 5.52Hz, the amplitude is 20mm, and the temperature of the material at the outlet of the vibration groove is close to the ambient temperature;
(6) sorting the materials obtained in the step (5) by adopting a vertical airflow sorting device, wherein the temperature of airflow is the same as the ambient temperature, the flow velocity of the airflow is 4.0 +/-1 m/s, and the collected and sorted materials are cut tobacco products 2;
(7) and storing the tobacco shred product 2 in a constant temperature and humidity environment for later use.
Example 3
The ambient temperature is 29.8 deg.C, and the relative humidity of the environment is not higher than 70%. As shown in fig. 2, the method of drying cured tobacco shred includes:
(1) drying the cured tobacco shreds by adopting a drum-type tobacco shred drying machine, wherein the material flow is 2400kg/h, and obtaining dried materials with the temperature of 58 +/-3 ℃ and the water content of 13.5 +/-0.4%;
(2) the materials are processed and dried by two vibrating grooves (the size of a single vibrating groove is 5.5 meters long and 0.9 meter wide) which are connected in series, the conveying speed is 0.28m/s, the vibration frequency is 4.33Hz, the amplitude is 25mm, and the temperature of the materials at the outlet of the vibrating grooves is 48 +/-5 ℃;
(3) cooling the treated material by a belt conveyor, wherein the conveying speed is 0.67m/s, the conveying time is 10-12 seconds, and the temperature of the material at the outlet of the belt conveyor is about 43 +/-3 ℃;
(4) sorting the materials obtained in the step (3) by a vertical airflow sorting device, keeping the temperature of airflow at 40 +/-3 ℃, and collecting the sorted primary materials, wherein the flow velocity of the airflow is 5.0 m/s;
(5) a vibration groove (the size of the vibration groove is 4 meters long and 1.3 meters wide) is adopted to process the primary selected material, the conveying speed is 0.23m/s, the vibration frequency is 5.52, the amplitude is 20mm, and the temperature of the material at the outlet of the vibration groove is close to the ambient temperature;
(6) sorting the materials obtained in the step (5) by adopting a vertical airflow sorting device, wherein the temperature of airflow is the same as the ambient temperature, the flow velocity of the airflow is 3.9m/s, and the collected and sorted materials are cut tobacco products 3;
(7) and storing the cut tobacco product 3 in a constant temperature and humidity environment for later use.
In the above embodiment: in the step (4), a vertical airflow sorting device is adopted for sorting so as to remove wet mass, tobacco scale and part of stems with higher density in the materials; and (6) adopting the vertical airflow separation device to separate again to remove the residual stems in the cut tobacco.
Comparative example 1
The same batch of cured tobacco shred as in example 1 was dried. The parameters of two vibration grooves in the step (2) of the embodiment 1 are changed as follows: the conveying speed is 0.23m/s, the vibration frequency is 5.52Hz, and the amplitude is 20 mm; the parameters of the belt conveyor in the step (3) of the example 1 were changed to: the conveying speed is 0.5m/s, and the conveying time is 1 minute; changing the parameters in the step (4) into: the temperature of the airflow is the same as the ambient temperature, and the flow velocity of the airflow is 8 m/s; otherwise, the same as example 1; and (5) obtaining a tobacco shred product A, and storing the tobacco shred product A in a constant temperature and humidity environment for later use.
Comparative example 2
The same batch of cured tobacco shred as in example 1 was dried. The parameters of two vibration grooves in the step (2) of the embodiment 1 are changed as follows: the conveying speed is 0.23m/s, the vibration frequency is 5.52Hz, and the amplitude is 20 mm; omitting a belt-dropping conveyor; changing the parameters in the step (4) into: the temperature of the airflow is the same as the ambient temperature, and the flow velocity of the airflow is 8 m/s; otherwise, the same as example 1; and (5) obtaining a tobacco shred product B, and storing the tobacco shred product B in a constant temperature and humidity environment for later use.
Test example 1 detection of macular and mildew tobacco in products
And respectively manufacturing the tobacco shred products 1-3 and the tobacco shred products A-B into 1000 cigarettes according to the same conventional method. All cigarettes are stored under the conditions of normal temperature and normal pressure, the proportion of the yellow spot cigarettes in each cigarette product is checked and calculated after the cigarettes are stored for 1 year, and the mildew cigarettes can appear after the cigarettes are stored for a long time, and the results are shown in table 1.
TABLE 1
As is apparent from Table 1, the cut tobacco drying method of the present invention can significantly reduce the proportion of yellow spot smoke and prolong the time for which the yellow spot smoke is mildewed, as compared with the cut tobacco drying method of the comparative example. The method can effectively remove the wet lumps in the tobacco shred materials and reduce the wet lumps or loose objects thereof from being mixed into the tobacco shred products, thereby obtaining the tobacco shred products with the water content meeting the requirements.
Test example 2 sensory quality evaluation of tobacco shred products
The tobacco shred products 1-3 and the tobacco shred products A-B are made into cigarettes according to the same conventional method, 200 cigarettes are randomly sampled respectively, sensory quality evaluation is carried out by 13 professionals according to GB5606.4, average scores are obtained, and the results are shown in Table 2.
TABLE 2
As can be seen from Table 2, compared with the tobacco shred drying method in the comparative example, the cigarette made of the tobacco shreds obtained by the method of the invention has lower irritation, less offensive odor and better sensory quality, which shows that the method of the invention can effectively remove the impurities such as tobacco scale and the like in the tobacco shred materials and reduce the impurities mixed in the tobacco shred products.
Test example 3 detection of crushing condition of method for drying tobacco shreds and detection of filling value of tobacco shred products
(1) The crushing rate of the cut tobacco by the cut tobacco drying method of examples 1 to 2 and comparative examples 1 to 2 was calculated according to the following formula, and the results are shown in table 3.
The cut tobacco drying method has a cut tobacco producing rate (%) (cut tobacco product cut tobacco rate + 100% + the dedusting quality in step (4)/cut tobacco product quality + 100% + the dedusting quality in step (6)/cut tobacco product quality-cut tobacco rate of the drying material in step (1)
And (3) collecting the waste gas generated by the neutral airflow winnowing device in the step (4) or the step (6), collecting and weighing dust in the waste gas by using a dust remover, and obtaining the dust removal quality in the step (4) or the step (6).
(2) The filling values of the tobacco products of examples 1 to 2 and comparative examples 1 to 2 were measured by the method for measuring the filling value of tobacco shreds for cigarettes recommended in YC/T1522001, and the results are shown in table 3.
TABLE 3
In the tobacco industry, the breakage rate of the cut tobacco is generally considered to be reduced by 0.5 percent, and the filling value is improved by 0.2cm3Both the/g values are significant improvements in efficacy.
As can be seen from Table 3, the crushing rate of the cut tobacco drying method of the present invention was significantly reduced and the filling value of the cut tobacco product was significantly improved, as compared with the cut tobacco drying method of the comparative example.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (13)
1. A method of drying cut tobacco comprising the steps of:
(1) drying the cut tobacco to obtain a dried material with the temperature of 50-80 ℃ and the water content of 10-20% by weight;
(2) processing the dried material by adopting a vibration groove at an ambient temperature and an ambient relative humidity, wherein the conveying speed is 0.26-0.35 m/s, the conveying time is 35-50 s, the vibration frequency is 4.10-4.70 Hz, and the amplitude is 23-30 mm to obtain a first material, and the temperature of the first material is higher than the ambient temperature and lower than the temperature of the dried material;
(3) under the ambient temperature and the ambient relative humidity, a belt conveyor is adopted to convey a first material and dissipate heat in the conveying process, the conveying speed is 0.6-0.7 m/s, the conveying time is 8-40 s, a second material is obtained, and the temperature of the second material is higher than the ambient temperature and lower than that of the first material;
(4) carrying out airflow separation on the second material, wherein the flow velocity of the airflow is 4.3-6.8 m/s, the temperature of the airflow is higher than the ambient temperature and is not higher than the temperature of the second material, and collecting the material;
(5) processing the material collected in the step (4) by using a vibration tank at an ambient temperature and an ambient relative humidity, wherein the conveying speed is 0.18-0.24 m/s, the conveying time is 10-30 s, the vibration frequency is 5.30-6.00 Hz, and the amplitude is 16-21 mm to obtain a third material;
(6) carrying out airflow separation on the third material, wherein the temperature of the airflow is the same as the ambient temperature, the flow velocity of the airflow is 2.8-6 m/s, and collecting the material, namely the cut tobacco product;
wherein the ambient temperature is 15-35 ℃, and the ambient relative humidity is not higher than 70%.
2. The method of claim 1, wherein the temperature of the first material is between 6 ℃ and 22 ℃ lower than the temperature of the drying material.
3. The method of claim 1, wherein the temperature of the first material is between 41 ℃ and 62 ℃.
4. The method of claim 1, wherein the temperature of the second material is 1 ℃ to 9 ℃ lower than the temperature of the first material.
5. The method of claim 1, wherein the temperature of the second material is 38 ℃ to 56 ℃.
6. The method defined in claim 1 wherein in step (4) the temperature of the gas stream is between 0 ℃ and 8 ℃ lower than the temperature of the second material.
7. The method of claim 1, wherein in step (4), the temperature of the gas stream is from 35 ℃ to 50 ℃.
8. The method according to any one of claims 1 to 7, characterized by one or more of the following A to I:
A. in the step (1), the flow rate of the cut tobacco in the drying treatment is 1000-8000 kg/h;
B. in the step (1), an airflow cut-tobacco drier or a drum-type cut-tobacco drier is adopted for drying treatment;
C. in the step (2) and/or the step (5), the vibration groove is in an open structure;
D. in the step (3), the belt conveyor is of an open structure;
E. in the step (4) and/or the step (6), a vertical airflow sorting device is adopted for airflow sorting;
F. the temperature of the third material is the same as the ambient temperature;
G. the tobacco shred is selected from flue-cured tobacco shred and burley tobacco shred;
H. the tobacco shreds are cut stems of tobacco stalks;
I. the method further comprises step (7): storing the cut tobacco products under the conditions of constant temperature and constant humidity.
9. A cut tobacco which is a cut tobacco product obtained by the method of any one of claims 1 to 8.
10. Cut tobacco according to claim 9, wherein the cut tobacco has a filling value above 4.0cm3/g。
11. A smoking article comprising the cut filler of claim 9 or 10.
12. A smoking article according to claim 11, which is a cigarette.
13. Use of a cut filler according to claim 9 or 10 for reducing the proportion of macular smoke and/or proportion of mouldy smoke in a cigarette.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010393135.4A CN111528510B (en) | 2020-05-11 | 2020-05-11 | Method for drying tobacco shreds, tobacco products and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010393135.4A CN111528510B (en) | 2020-05-11 | 2020-05-11 | Method for drying tobacco shreds, tobacco products and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111528510A CN111528510A (en) | 2020-08-14 |
| CN111528510B true CN111528510B (en) | 2022-03-18 |
Family
ID=71973953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010393135.4A Active CN111528510B (en) | 2020-05-11 | 2020-05-11 | Method for drying tobacco shreds, tobacco products and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111528510B (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2335970C2 (en) * | 1973-07-14 | 1982-02-18 | Hauni-Werke Körber & Co KG, 2050 Hamburg | Method and device for drying tobacco |
| US3742961A (en) * | 1971-11-08 | 1973-07-03 | Reynolds Co R | Method and apparatus for treating tobacco |
| US4040431A (en) * | 1975-09-05 | 1977-08-09 | American Brands, Inc. | Method of increasing the filling capacity of shredded tobacco tissue |
| DE3603193A1 (en) * | 1986-02-03 | 1987-08-06 | Hauni Werke Koerber & Co Kg | METHOD AND SYSTEM FOR PRODUCING CUT TOBACCO FROM RELATIVELY DRY TOBACCO |
| CN102132950A (en) * | 2011-01-13 | 2011-07-27 | 中国烟草总公司郑州烟草研究院 | Process method for utilizing waste heat in tobacco shred airflow drying and special flow heating device |
| CN102771883B (en) * | 2012-08-07 | 2015-02-18 | 厦门烟草工业有限责任公司 | Online sliver separating device for high moisture content cut tobaccos and separating method of online sliver separating device |
| CN204409556U (en) * | 2014-12-31 | 2015-06-24 | 红云红河烟草(集团)有限责任公司 | The static moisture regain system of a kind of baking cut tobacco over-dried cut tobacco constant temperature and humidity |
| CN106174679B (en) * | 2016-08-25 | 2017-12-05 | 红塔烟草(集团)有限责任公司 | A kind of efficient separation material-returning device |
| CN106333380A (en) * | 2016-08-29 | 2017-01-18 | 河南中烟工业有限责任公司 | Tobacco shred fast shaping and drying method |
| CN106490668B (en) * | 2016-12-14 | 2018-07-10 | 湖北中烟工业有限责任公司 | A kind of two benches cigarette leaves and tobacco drying unit and baking silk technique |
| CN109225859B (en) * | 2018-11-06 | 2021-06-22 | 龙岩烟草工业有限责任公司 | Tobacco shred winnowing system |
| CN111035045A (en) * | 2019-11-28 | 2020-04-21 | 湖北中烟工业有限责任公司 | Flexible technology manufacturing method considering both fine cigarette stems and conventional cigarette cut stems |
-
2020
- 2020-05-11 CN CN202010393135.4A patent/CN111528510B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111528510A (en) | 2020-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6811616B2 (en) | Reconstructed tobacco sheet and related methods | |
| US6840248B2 (en) | Method of and apparatus for recovering and recycling tobacco dust | |
| US7556047B2 (en) | Method of expanding tobacco using steam | |
| JP6545305B2 (en) | Method for producing tobacco material and tobacco material produced by the method | |
| CZ452190A3 (en) | Process of treating tobacco leaves | |
| CN112888322A (en) | Method and apparatus for producing reconstituted tobacco | |
| EP3302106B1 (en) | Method of making tobacco cut filler | |
| US3690328A (en) | Wet processing of tobacco stems | |
| NO152994B (en) | PROCEDURE AND DEVICE FOR MANUFACTURING A FIBER MATERIAL FROM SOUPLE | |
| CN111528510B (en) | Method for drying tobacco shreds, tobacco products and application | |
| GB2261806A (en) | Cloves and cigarettes | |
| EP0693885A1 (en) | Cigarette and process for preparing the cigarette | |
| KR20160105393A (en) | Method of treating tobacco stalks | |
| JPH11103839A (en) | Sheet tobacco material and its production | |
| FR2458233A1 (en) | METHOD AND DEVICE FOR SEPARATING THE LIMB VEINS FROM A TOBACCO LEAF | |
| US5080112A (en) | Controlled opening of fibrous materials | |
| CN106108099A (en) | A kind of Microwave expansion tobacco stem comprehensive utilization process | |
| JPS58162279A (en) | Method and apparatus for treating leaf pieces and stalk of tobacco | |
| JPH07265043A (en) | Production of shredded tobacco of sheet and production machine therefor | |
| RU2311013C1 (en) | Tobacco harvesting combine | |
| WO1991000697A1 (en) | Pneumatic small lamina bypass | |
| CN2080753U (en) | Device for recovering tobacco from defective cigarette | |
| RU2794110C2 (en) | Method for manufacturing cut tobacco filler | |
| GB2199230A (en) | Apparatus for transporting and treating particles of tobacco and the like | |
| US1861705A (en) | Method of stemming and cleaning tobacco |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |