CN111820448A - Tobacco biological enzyme inactivation device and method - Google Patents
Tobacco biological enzyme inactivation device and method Download PDFInfo
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- CN111820448A CN111820448A CN202010530349.1A CN202010530349A CN111820448A CN 111820448 A CN111820448 A CN 111820448A CN 202010530349 A CN202010530349 A CN 202010530349A CN 111820448 A CN111820448 A CN 111820448A
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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
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/20—Biochemical treatment
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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
- A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
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Abstract
The invention discloses a tobacco biological enzyme inactivation device which comprises a shell, and an inactivation area, a drying area, a cooling area and a moisture regain area which are sequentially connected in series in the shell, wherein the inactivation area comprises a first conveying belt arranged in the shell, and a first fan and a first heat exchanger which act on the first conveying belt; the running speed of the first conveying belt is 3-8 m/min, the length of the first conveying belt is 1.5-8 m, and the temperature of the first heat exchanger is 80-125 ℃. The invention also discloses a method for inactivating the tobacco biological enzyme, which can rapidly inactivate the biological enzyme at high temperature in the inactivation area, slowly roast the tobacco material at low temperature in the drying area, reduce the high-temperature roasting time of the tobacco material, improve the safety of tobacco products and reduce the fragrance loss of the tobacco material on the basis of ensuring complete inactivation of the biological enzyme.
Description
Technical Field
The invention relates to the technical field of tobacco processing, in particular to a tobacco biological enzyme inactivation device and method.
Background
In order to improve the alcoholization quality of the tobacco material, biological enzyme is added in the alcoholization process of the tobacco so as to improve the alcoholization quality of the tobacco and shorten the alcoholization time of the tobacco. Adding biological enzyme into tobacco for alcoholization, wherein the alcoholization temperature is (40-60) DEG C, the water content of tobacco material is (18-28)%, so the alcoholized tobacco material needs to be inactivated by biological enzyme, and the water content is controlled to 12.5% to reduce mildew, insects and crumbling in the process of storing the tobacco material.
The main working process of the traditional tobacco material drying equipment is to sequentially dry, cool and remoisten tobacco materials so as to enable the moisture of the tobacco to reach the storage requirement. The hot air used by the drying equipment has a low drying temperature of 60-80 ℃ generally, and a long drying time of 5-10 min generally. However, the biological enzyme is generally required to be kept at 80-120 ℃ for 30-60 s to complete inactivation, and the traditional tobacco leaf material drying equipment cannot be adapted to inactivation treatment of the biological enzyme.
Disclosure of Invention
In order to solve one or more technical problems in the prior art or at least provide a beneficial choice, the invention provides a tobacco biological enzyme inactivation device and a method, which reduce the high-temperature baking time of tobacco materials, improve the safety of tobacco products and reduce the aroma loss of the tobacco materials on the basis of ensuring the inactivation of biological enzymes.
The invention discloses a tobacco biological enzyme inactivation device which comprises a shell, and an inactivation area, a drying area, a cooling area and a moisture regain area which are sequentially connected in series in the shell, wherein the inactivation area comprises a first conveying belt arranged in the shell, and a first fan and a first heat exchanger which act on the first conveying belt; the running speed of the first conveying belt is 3-8 m/min, the length of the first conveying belt is 1.5-8 m, and the temperature of the first heat exchanger is 80-125 ℃.
As a preferred technical scheme of tobacco biological enzyme deactivation device, first conveyer belt is the guipure structure, and first fan is fixed below first conveyer belt and is formed the lower blowing structure to first conveyer belt.
As a preferred technical scheme of the tobacco biological enzyme inactivation device, the drying area, the cooling area and the moisture regain area are provided with second conveying belts, and the second conveying belts are connected with the first conveying belts and are arranged lower than the first conveying belts.
As a preferred technical scheme of tobacco biological enzyme deactivation device, the drying zone is including setting up second fan and the second heat exchanger in the casing, and the second conveyer belt is guipure structure, and the second fan is fixed below the second conveyer belt and is formed the lower blowing structure to the second conveyer belt.
As a preferred technical scheme of the tobacco biological enzyme inactivation device, the drying area further comprises a third fan and a third heat exchanger which are arranged in the casing, and the third fan is fixed above the second conveying belt to form an upper blowing structure for the second conveying belt.
As a preferred technical scheme of the tobacco biological enzyme inactivation device, the tobacco biological enzyme inactivation device further comprises an exhaust device, and the exhaust device is provided with exhaust inlets in the inactivation area and the drying area.
As a preferred technical scheme of the tobacco biological enzyme inactivation device, the first fan, the second fan and the third fan are respectively provided with corresponding air exhaust inlets.
As a preferred technical scheme of tobacco biological enzyme deactivation device, the cooling zone is including setting up the fourth fan in the casing, and the casing is equipped with the louvre in corresponding fourth fan department.
As a preferred technical scheme of the tobacco biological enzyme inactivation device, the moisture regain area comprises an atomization moisture regain supply device and an airflow adjusting fan which are arranged in the machine shell.
The invention discloses a tobacco biological enzyme inactivation method, which applies the tobacco biological enzyme inactivation device and comprises the following steps:
s1, enabling the tobacco material to uniformly enter an inactivation area through a feeding hole and move at a speed of 3-8 m/min along with a first conveying belt;
s2, blowing hot air at 80-125 ℃ from the lower part of the first conveying belt to the tobacco material by a first fan at the speed of 0.1-10 m/S within 30-60S when the tobacco material passes through the inactivation zone until the temperature of the tobacco material is increased to 25-40 ℃;
s3, turning the tobacco material from the first conveying belt of the inactivation area to the second conveying belt of the drying area, operating at the speed of 3-8 m/min along with the second conveying belt, and sequentially performing an upper blowing drying dehydration procedure and a lower blowing drying dehydration procedure at the temperature of 60-100 ℃ until the moisture of the dried tobacco material is 6-9% and the temperature of the tobacco material is increased to 50-70 ℃;
s4, enabling the tobacco material to enter a cooling area from a drying area, and blowing air to the tobacco material by a fourth fan at 35-45 ℃;
s5, allowing the tobacco material to enter a moisture regaining area from a cooling area, wherein the moisture regaining temperature is 55-65 ℃ until the moisture of the material after moisture regaining is 12.5%;
and S6, outputting the tobacco material from the discharge hole to finish the procedures of inactivating the biological enzyme and drying.
The invention has the following beneficial effects:
1. the invention can quickly inactivate the biological enzyme at high temperature in the inactivation area, slowly roast the tobacco material at low temperature in the drying area, reduce the high-temperature roasting time of the tobacco material, improve the safety of the tobacco product and reduce the fragrance loss of the tobacco material on the basis of ensuring complete inactivation of the biological enzyme.
2. Due to the fact that the control of inactivation time is facilitated, the inactivation zone adopts the independent first conveying belt relative to the drying zone and the cooling zone moisture regain zone, the inactivation time of tobacco materials in the inactivation zone can be guaranteed according to the movement speed of the conveying belt and the length of the conveying belt, the inactivation effect is improved, the stacking thickness of the tobacco materials on the first conveying belt can be effectively controlled, and the phenomenon that the tobacco materials in the inactivation zone cannot be completely inactivated due to the fact that the stacking thickness is too thick is avoided.
3. The drying area, the cooling area and the moisture regaining area share the second conveying belt, so that the running cost of the conveying belt can be reduced, and the production efficiency is improved.
4. The first conveying belt and the second conveying belt are both in mesh belt structures, the inactivation area and the drying area are provided with downward blowing structures, and the tobacco materials are blown downward, so that the looseness of the tobacco materials in the inactivation process can be improved, and the inactivation efficiency is improved.
5. The drying area of the invention can improve the moisture uniformity of the drying of the tobacco materials in batches through the combined action of the lower blowing structure and the upper blowing structure.
6. The cooling area of the invention realizes heat dissipation through the fourth fan, and the arranged heat dissipation holes can accelerate the heat dissipation effect of the cooling area and improve the cooling efficiency of tobacco materials.
7. The airflow adjusting fan arranged in the moisture regaining area can guide the atomizing gas or the airflow with large external water content into the tobacco materials, so that the moisture regaining effect of the moisture regaining area is accelerated, the moisture regaining efficiency of the tobacco materials is improved, the using amount of the atomizing gas is reduced, and the production cost is reduced.
8. According to the invention, the exhaust devices are arranged in the inactivation area and the drying area, so that the temperatures of the drying area and the inactivation area can be effectively controlled, and the fragrance loss of tobacco materials caused by overhigh temperature is avoided.
9. Link up from top to bottom between first conveyer belt and the second conveyer belt, in the dry transportation process of tobacco material, realized the upset, improved the homogeneity and the drying efficiency of dry moisture.
10. The inactivation zone preheats the tobacco materials, and the efficiency of subsequent drying is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a front view of an inactivation zone and a drying zone in example 1 of the present invention;
FIG. 2 is a front view of a cooling zone and a moisture regain zone in example 1 of the present invention;
FIG. 3 is a top view of the inactivation zone and the drying zone in example 1 of the present invention;
FIG. 4 is a plan view of the cooling zone and the moisture regain zone in example 1 of the present invention.
Wherein:
1-inactivation zone, 11-feeding inlet, 12-first conveying belt, 13-first heat exchanger, 14-first fan, 2-drying zone, 21-second conveying belt, 22-second heat exchanger, 23-second fan, 24-third heat exchanger, 25-third fan, 3-cooling zone, 31-fourth fan, 32-heat dissipation hole, 4-moisture return zone, 41-atomization moisture return supply device, 42-airflow adjusting fan, 43-discharging outlet, 5-exhaust device, 51-exhaust device
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The specific scheme is as follows:
example 1
As shown in fig. 1 and fig. 2, the inactivation device for tobacco biological enzymes disclosed in this embodiment includes a housing, and an inactivation zone 1, a drying zone 2, a cooling zone 3, and a moisture regain zone 4 that are sequentially connected in series in the housing, wherein the inactivation zone 1 is provided with a feed inlet 11, and the moisture regain zone 4 is provided with a discharge outlet 43. The inactivation of the biological enzyme is realized only through the drying area in the prior art, the complete inactivation of the tobacco material cannot be completed due to the lower temperature of the drying area, and after the temperature of the drying area is increased, the tobacco material is in a high-temperature state for a long time, so that the quality of the tobacco material is affected, and the fragrance loss is caused. According to the invention, the tobacco material is quickly inactivated at high temperature for a short time through the additionally arranged inactivation area 1, so that the complete inactivation of the biological enzyme can be ensured, the time for baking the tobacco material at high temperature can be reduced, the safety is improved, and the quality of the tobacco material is ensured. Specifically, the inactivation zone 1 comprises a first conveyer belt 12 arranged in the casing, a first fan 14 acting on the first conveyer belt 12, and a first heat exchanger 13; the running speed of the first conveying belt 12 is 5m/min, the length of the first conveying belt 12 is 5m, the temperature of the first heat exchanger 13 is 100 ℃, and therefore the time for completely inactivating the tobacco materials can be within 30-60 s. First conveyer belt 12 is independent conveyer belt, according to the 12 parameters of first conveyer belt of setting for, and the inactivation time of steerable 1 tobacco material in inactivation district cooperates the high temperature effect of first heat exchanger 13, realizes quick inactivation.
It can be understood that the running speed of the first conveyor belt 12 can be set to 3-8 m/min and the length of the first conveyor belt 12 can be set to 1.5-8 m as required, so as to ensure that the time for completely inactivating the tobacco material can be within 30-60 s.
Further, the first conveyor belt 12 is a mesh belt structure, and the first fan 14 is fixed below the first conveyor belt 12 to form an upper blowing structure for the first conveyor belt 12. First fan 14 accessible guipure structure's mesh hole blows hot-blast to the tobacco material from the lower part, can realize abundant high temperature deactivation to the tobacco on the one hand, and on the other hand, the structure of blowing down can form ascending power to the tobacco material, makes the tobacco material more loose, does benefit to the deactivation to inside tobacco material.
In the drying zone 2, the cooling zone 3 and the conditioning zone 4, a second conveyor belt 21 is provided, which second conveyor belt 21 may run at a different speed than the first conveyor belt 12. The second conveyer belt 21 links up and connects in first conveyer belt 12 and is less than the setting of first conveyer belt 12, because first conveyer belt 12 and second conveyer belt 21 are equipped with the difference in height, the tobacco material that transports from first conveyer belt 12 can realize the upset when falling into second conveyer belt 21, when the tobacco material is on first conveyer belt 12, carry out high temperature inactivation (have stoving function concurrently) to the lower floor material through the lower blast structure of first fan 14, when the tobacco material is on second conveyer belt 21, the material upset back, can dry the material on former tobacco material upper strata, guarantee that the moisture of tobacco material is even.
Specifically, the drying area 2 includes a second fan 23 and a second heat exchanger 22 disposed in the casing, the second conveyor belt 21 is a mesh belt structure, and the second fan 23 is fixed below the second conveyor belt 21 to form an upper blowing structure for the second conveyor belt 21. With the inactivation district the same reason, the structure of blowing on can make the tobacco material more loose, does benefit to the inactivation to inside tobacco material. Further, the drying area 2 further includes a third fan 25 and a third heat exchanger 24 disposed in the housing, and the third fan 25 is fixed above the second conveyor belt 21 to form a downward blowing structure for the second conveyor belt 21. The third fan 25 is disposed at the rear end of the second fan 23 (it should be noted that, the front end and the rear end in this embodiment are defined in sequence according to the production line flow), when the tobacco material enters the second conveyor belt 21 from the first conveyor belt 12, the tobacco material is first blown upward by the second fan 23, and then blown downward by the third fan 25, and the uniformity of the drying moisture of the tobacco material is improved by the combined action of the upward blowing and the downward blowing.
It is understood that the number of the second fans 23 and the number of the second heat exchangers 22 may be set according to the length of the drying zone 2, and the number of the second fans 23 is two in the embodiment, and the number of the corresponding second heat exchangers 22 is also two.
In this embodiment, the cooling area 3 includes a fourth fan 31 disposed in the casing, and the casing is provided with heat dissipation holes 32 corresponding to the fourth fan 31, as shown in fig. 4. The heat on the tobacco material is taken away in the tobacco material of blowing to the tobacco material of drying completion through fourth fan 31, realizes the normal atmospheric temperature circulation heat dissipation, and the louvre can accelerate the radiating effect.
In this embodiment, the moisture regain area 4 includes an atomized moisture regain supplying device 41 and an airflow adjusting fan 42 provided in the cabinet. The atomization and moisture regaining supply device 41 is provided with a pipeline communicated to the inner cavity of the machine shell, atomization airflow or external air is input into the moisture regaining area through the pipeline, the airflow adjusting fan 42 is arranged above the second conveying belt 21 and blows air towards the tobacco materials, the atomization airflow is guided to the tobacco materials, and the moisture regaining effect is accelerated. According to the length of the moisture regaining area, a plurality of pipelines for supplying atomized moisture regaining and a plurality of corresponding airflow adjusting fans can be arranged.
As shown in fig. 3, in order to facilitate controlling the temperature of the inactivation zone 1 and the drying zone 2 and avoid the over-high temperature caused by long-term operation, the present embodiment further includes an air exhaust device 5, the air exhaust device 5 utilizes a fan to induce air, and the air exhaust device 5 is provided with an air exhaust inlet 51 in both the inactivation zone 1 and the drying zone 2. Specifically, the first fan 14, the second fan 23, and the third fan 25 are provided with corresponding exhaust inlets. Because the first fan 14 and the second fan 23 are of a downward blowing structure, the exhaust air inlet 51 corresponding to the first fan 14 is arranged right above the first fan 14, the exhaust air inlet 51 corresponding to the second fan 23 is arranged right above the second fan 23, and because the third fan 25 is of an upward blowing structure, the exhaust air inlet 51 corresponding to the third fan 25 is arranged below the third fan 25, and in consideration of the setting of the length of the pipeline, the third fan 25 and the exhaust air inlet 51 corresponding to the third fan 25 are arranged diagonally in the cabinet.
Example 2
The method for inactivating tobacco biological enzyme disclosed in the embodiment applies the device for inactivating tobacco biological enzyme disclosed in embodiment 1, and comprises the following steps:
s1 the tobacco material uniformly enters the inactivation zone 1 through the feed inlet 11 and runs at the speed of 5m/min along with the first conveyer belt 12;
s2, in the time of 40S when the tobacco material passes through the inactivation zone 1, the first fan 14 blows hot air at the temperature of 110 ℃ to the tobacco material from the lower part of the first conveying belt 12 at the speed of 8m/S until the temperature of the tobacco material is increased to 25-40 ℃;
s3, overturning the tobacco material from the first conveying belt 12 of the inactivation zone 1 to the second conveying belt 21 of the drying zone, operating at a speed of 7m/min along with the second conveying belt 21, and sequentially performing an upper blowing drying dehydration procedure and a lower blowing drying dehydration procedure at 80 ℃ until the moisture of the dried tobacco material is 6-9% and the temperature of the tobacco material is increased to 50-70 ℃;
s4, the tobacco material enters the cooling area 3 from the drying area 2, and the fourth fan 31 blows air to the tobacco material at 40 ℃;
s5, the tobacco material enters a moisture regaining area 4 from the cooling area 3, the moisture regaining temperature is 60 ℃, and the moisture of the material after moisture regaining is 12.5%;
and S6, outputting the tobacco material from the discharge port 43 to finish the procedures of inactivating the biological enzyme and drying.
In this embodiment, the first conveyor belt 12 has a higher running speed, which can properly increase the temperature of the inactivation zone 1 to rapidly complete the inactivation of the bio-enzyme, and the second conveyor belt 21 has a lower running speed, which can properly reduce the drying temperature, accordingly save the energy loss of the heat exchanger, and reduce the production cost.
This embodiment can carry out quick high temperature inactivation to the biological enzyme in the tobacco material through setting up inactivation district 1 to can provide the drying for the tobacco material and preheat, can guarantee the inactivation effect, can also shorten the drying time of tobacco material in the drying district, reduce the fragrance loss of tobacco material.
Example 3
The method for inactivating tobacco biological enzyme disclosed in the embodiment applies the device for inactivating tobacco biological enzyme disclosed in embodiment 1, and comprises the following steps:
s1 the tobacco material uniformly enters the inactivation zone 1 through the feed inlet 11 and runs at the speed of 8m/min along with the first conveyer belt 12;
s2, in the 30S period that the tobacco material passes through the inactivation zone 1, the first fan 14 blows hot air of 125 ℃ to the tobacco material from the lower part of the first conveying belt 12 at the speed of 10m/S until the temperature of the tobacco material is increased to 25-40 ℃;
s3, overturning the tobacco material from the first conveying belt 12 in the inactivation area to the second conveying belt 21 in the drying area, operating at the speed of 5m/min along with the second conveying belt 21, and sequentially performing an upper blowing drying dehydration procedure and a lower blowing drying dehydration procedure at 60 ℃ until the moisture of the dried tobacco material is 6-9% and the temperature of the tobacco material is increased to 50-70 ℃;
s4, the tobacco material enters the cooling area 3 from the drying area 2, and the fourth fan 31 blows air to the tobacco material at 35 ℃;
s5, the tobacco material enters a moisture regaining area 4 from the cooling area 3, the moisture regaining temperature is 55 ℃, and the moisture of the material after moisture regaining is 12.5%;
and S6, outputting the tobacco material from the discharge port 43 to finish the procedures of inactivating the biological enzyme and drying.
Compared with the embodiment 2, in the embodiment, the running speed of the first conveying belt 12 is properly increased, and in order to ensure high efficiency and complete inactivation of the tobacco material in a short time, the temperature of the inactivation zone 1 is properly increased in the embodiment, so that the tobacco material is inactivated at high speed and high temperature in a high-speed transportation state, and the production efficiency is increased.
The technical solutions protected by the present invention are not limited to the above embodiments, and it should be noted that the combination of the technical solution of any one embodiment and the technical solution of one or more other embodiments is within the protection scope of the present invention. Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The tobacco biological enzyme inactivation device is characterized by comprising a machine shell, and an inactivation zone, a drying zone, a cooling zone and a moisture regain zone which are sequentially connected in series in the machine shell, wherein the inactivation zone comprises a first conveying belt arranged in the machine shell, and a first fan and a first heat exchanger which act on the first conveying belt; the running speed of the first conveying belt is 3-8 m/min, the length of the first conveying belt is 1.5-8 m, and the temperature of the first heat exchanger is 80-125 ℃.
2. The inactivation device for biological enzymes in tobacco according to claim 1, wherein the first conveyor belt is a mesh belt structure, and the first fan is fixed below the first conveyor belt and is configured to blow air downward on the first conveyor belt.
3. The inactivation device for tobacco biological enzymes as claimed in claim 1, wherein the drying zone, the cooling zone and the moisture return zone are provided with a second conveyor belt, and the second conveyor belt is connected to and arranged below the first conveyor belt.
4. The inactivation device for biological enzymes in tobacco according to claim 3, wherein the drying zone comprises a second fan and a second heat exchanger disposed in the housing, the second conveyor belt is a mesh belt structure, and the second fan is fixed below the second conveyor belt and is configured to blow down the second conveyor belt.
5. The inactivation device for tobacco biological enzymes as claimed in claim 4, wherein the drying zone further comprises a third fan and a third heat exchanger disposed in the housing, the third fan being fixed above the second conveyor belt to form an upward blowing structure for the second conveyor belt.
6. The inactivation device of tobacco biological enzyme according to claim 5, further comprising an air exhaust device, wherein the air exhaust device is provided with an air exhaust inlet in both the inactivation zone and the drying zone.
7. The inactivation device for tobacco biological enzymes according to claim 6, wherein the first fan, the second fan and the third fan are provided with corresponding exhaust inlets.
8. The inactivation device of tobacco biological enzyme according to claim 1, wherein the cooling zone comprises a fourth fan disposed in the casing, and the casing is provided with heat dissipation holes corresponding to the fourth fan.
9. The inactivation device of tobacco biological enzyme as claimed in claim 1, wherein the moisture regain area comprises an atomized moisture regain supply device and an air flow adjusting fan disposed in the housing.
10. A method for inactivating tobacco biological enzyme, which uses the tobacco biological enzyme inactivation device as claimed in any one of claims 1 to 9, comprising the steps of:
s1, enabling the tobacco material to uniformly enter an inactivation area through a feeding hole and move at a speed of 3-8 m/min along with a first conveying belt;
s2, blowing hot air at 80-125 ℃ from the lower part of the first conveying belt to the tobacco material by a first fan at the speed of 0.1-10 m/S within 30-60S when the tobacco material passes through the inactivation zone until the temperature of the tobacco material is increased to 25-40 ℃;
s3, turning the tobacco material from the first conveying belt of the inactivation area to the second conveying belt of the drying area, operating at the speed of 3-8 m/min along with the second conveying belt, and sequentially performing a lower air drying and dehydrating procedure and an upper air drying and dehydrating procedure at the temperature of 60-100 ℃ until the moisture of the dried tobacco material is 6-9% and the temperature of the tobacco material is increased to 50-70 ℃;
s4, enabling the tobacco material to enter a cooling area from a drying area, and blowing air to the tobacco material by a fourth fan at 35-45 ℃;
s5, allowing the tobacco material to enter a moisture regaining area from a cooling area, wherein the moisture regaining temperature is 55-65 ℃ until the moisture of the material after moisture regaining is 12.5%;
and S6, outputting the tobacco material from the discharge hole to finish the procedures of inactivating the biological enzyme and drying.
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