CN115083253B - Multifunctional tobacco shred drying simulation device and application method thereof - Google Patents
Multifunctional tobacco shred drying simulation device and application method thereof Download PDFInfo
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- CN115083253B CN115083253B CN202210772552.9A CN202210772552A CN115083253B CN 115083253 B CN115083253 B CN 115083253B CN 202210772552 A CN202210772552 A CN 202210772552A CN 115083253 B CN115083253 B CN 115083253B
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Abstract
The invention provides a multifunctional tobacco shred baking simulation device, which comprises: the drying silk roller comprises an air duct assembly, a driving wheel and a sealing assembly, wherein the air duct assembly comprises an outer shell and an air duct interface; the number of the air pipe interfaces is two, one air pipe interface is respectively communicated with the air source and the first end of the preheating air pipe through an inlet three-ventilation valve, the other air pipe interface is respectively communicated with the tide-discharging air valve and the second end of the preheating air pipe through an outlet three-ventilation valve, and the tide-discharging air valve is communicated with the air source through a pipeline; the air source comprises a fresh air valve and a circulating fan, and a hot air heater is further arranged on a pipeline of the inlet three ventilation valves communicated with the air source; the preheating air pipe is communicated with the steam generator. The invention provides a use method of the multifunctional tobacco shred drying simulation device. The invention has the advantages that two process simulations of sheet drying and air flow drying of cut tobacco are realized by adopting only one device, and the flexible and changeable use requirements of experimental projects are met.
Description
Technical Field
The invention relates to the technical field of cigarette production and manufacturing, in particular to a multifunctional tobacco shred baking simulation device and a using method thereof.
Background
The tobacco shred drying process is an important link in the cigarette production and manufacturing process, and currently, two tobacco shred drying processes, namely air flow drying and sheet drying, are commonly used in the tobacco industry. The main technical characteristics of the pneumatic drying process are as follows: the moisture of the cut tobacco is taken away by utilizing the drying air flow to penetrate the cut tobacco, so as to achieve the drying effect; the main technical characteristics of the thin plate drying process are as follows: and drying the cut tobacco by heating the thin plate of the cylinder wall. Different drying modes and technological parameter conditions have important influences on chemical components and organoleptic styles of tobacco, and further influence the quality of cigarette products. By researching the tobacco shred drying process, the influence rules of different drying modes and different parameters on the chemical components and the sensory quality of tobacco can be further clarified, so that the tobacco shred drying process selection and parameter optimization of different cigarette products are supported. Because tobacco raw materials need to be put into a tobacco shred drying device for tobacco production for several tons per hour, the tobacco shred drying device is directly used for experimental study, so that higher raw material consumption cost is caused, and normal production arrangement of a cigarette factory is influenced, the study is generally carried out in a laboratory or a test line with smaller productivity.
When related wire drying researches are carried out in a laboratory, test equipment capable of simulating wire drying conditions of normal production equipment is indispensable. The conventional laboratory simulation cut-tobacco drier has single function, can simulate only one cut-tobacco drying process, cannot meet the flexible and changeable experimental process requirements of a laboratory, and has great limitation. There is a need for a device suitable for laboratory use that allows for sheet drying and air drying of small amounts of tobacco samples.
Disclosure of Invention
In view of the above-mentioned drawbacks, the present invention aims to provide a tobacco shred simulation device having both pneumatic drying and sheet drying functions.
The invention provides a multifunctional tobacco shred baking simulation device, which comprises: the drying silk roller comprises an air duct assembly, a driving wheel and a sealing assembly, wherein the air duct assembly comprises a hollow outer shell and an air duct interface communicated with the outer shell; the first end of the outer shell is in sealing connection with the heating component; the first end of the driving wheel is rotationally connected with the second end of the outer shell and is driven by a first driving source to rotate; the sealing assembly comprises a connecting part, the second end of the driving wheel is connected with the second end of the connecting part and sleeved on the outer side of the connecting part, the first end of the connecting part is connected with a filtering assembly, and the filtering assembly is positioned in the inner cavity of the outer shell; a sealing cover is detachably connected in the connecting part, and the sealing cover seals the filtering assembly in the outer shell; the number of the air pipe connectors is two, one air pipe connector is respectively communicated with the air source and the first end of the preheating air pipe through an inlet three-ventilation valve, the other air pipe connector is respectively communicated with the tide-discharging air valve and the second end of the preheating air pipe through an outlet three-ventilation valve, and the tide-discharging air valve is communicated with the air source through a pipeline; the air source comprises a fresh air valve and a circulating fan which are independently arranged and communicated with each other, and a hot air heater is further arranged on a pipeline for communicating the inlet three ventilation valves with the air source; the preheating air pipe is communicated with the steam generator.
Preferably, the axial direction of the air pipe interface is perpendicular to the axial direction of the outer shell.
Preferably, the heating assembly comprises a plurality of rod heaters and temperature sensors disposed on a mounting plate.
Preferably, the driving wheel is provided with a first groove, the first driving source is a rotating motor, and the rotating motor drives the driving wheel to rotate through a belt arranged in the first groove.
Preferably, a plurality of positioning support wheels are further arranged at the second end of the outer shell, a second groove is formed in the driving wheel, and the positioning support wheels are arranged in the second groove.
Preferably, the filter component comprises a roller framework, an outer lining net, a filter screen and an inner lining net, wherein the roller framework comprises a bottom plate, annular plates and a plurality of shoveling plates which are distributed between the bottom plate and the annular plates at intervals, the outer lining net, the filter screen and the inner lining net are sequentially arranged outside the shoveling plates from outside to inside, and the annular plates are fixedly connected with the first end of the connecting part.
Preferably, the sealing cover is made of heat-resistant glass, so that an operator can directly observe the state of materials in the outer shell.
Preferably, the sealing cover is magnetically attracted in the connecting portion.
The invention also provides a use method of the multifunctional tobacco shred baking simulation device, which comprises the following steps:
air flow drying mode: closing the heating assembly, the fresh air valve and the tide-discharging air valve, controlling the inlet three air valve and the outlet three air valve, switching the airflow circulation path to a preheating air pipe, opening the hot air heater and the circulating fan at the moment, opening the steam generator and the tide-discharging air valve after the air speed of the airflow is stable, discharging oxygen in the pipe, ensuring that the temperature, the speed and the oxygen content of the airflow reach set conditions, closing the steam generator and the tide-discharging air valve, and continuously working the hot air heater and the circulating fan to finish the preheating work; then, putting tobacco materials to be dried into a filter assembly, driving the filter assembly to rotate by a first driving source, controlling an inlet three-ventilation valve and an outlet three-ventilation valve, switching an airflow circulation path to a tobacco drying roller, enabling the airflow to pass through the filter assembly, enabling the tobacco materials to be fully contacted with the airflow to finish quick drying, simultaneously opening a moisture-discharging air valve to discharge moisture, controlling the inlet three-ventilation valve and the outlet three-ventilation valve after reaching a preset time, switching the airflow circulation path to a preheating air pipe again, cutting off the contact between the tobacco materials and the airflow, and finishing airflow drying;
sheet drying mode: opening the heating assembly and the fresh air valve, closing the tide-discharging air valve, controlling the inlet three air valve and the outlet three air valve, switching the airflow circulation path to a preheating air pipe, opening the hot air heater and the circulating fan at the moment, and opening the tide-discharging air valve after the air speed of the airflow is stable, so as to ensure that the temperature of the outer shell, the temperature and the speed of the airflow reach set conditions, and finishing the preheating work; then, tobacco materials to be dried are placed into the filter assembly, the first driving source drives the filter assembly to rotate, the inlet three ventilation valves and the outlet three ventilation valves are controlled to switch the airflow circulation path to the tobacco drying roller, the airflow passes through the filter assembly, the tobacco materials are slowly dried under the action of the high-temperature outer shell and the airflow, moisture is discharged through the moisture discharging air valves, after the preset time is reached, the inlet three ventilation valves and the outlet three ventilation valves are controlled to switch the airflow circulation path to the preheating air pipe again, the contact between the tobacco materials and the airflow is cut off, and drying of the thin plate is completed.
Preferably, in the air drying mode, the oxygen content of the air stream passing through the filter assembly is less than 5% and the temperature is in the range 160-250 ℃.
The invention has the advantages that the novel multifunctional tobacco drying roller is provided, the novel multifunctional tobacco drying roller is suitable for carrying out drying process simulation on a small amount of tobacco samples in a laboratory, two process simulation of sheet drying and air flow drying of tobacco are realized simultaneously by only one device, and in addition, complex processes of alternate execution of sheet drying and air flow drying can be arranged according to process requirements, so that the use requirements of flexible and changeable experimental projects are met.
Drawings
FIG. 1 is a front view of a multi-functional cut tobacco dryer simulation apparatus of the present invention;
FIG. 2 is a left side view of the multi-functional cut tobacco dryer simulation apparatus of the present invention;
FIG. 3 is a perspective view of a wire drying cylinder;
FIG. 4 is an exploded view of a wire drying cylinder;
fig. 5 is a front view of a wire drying cylinder;
FIG. 6 is a schematic diagram of the airflow path during the pre-heat stage in the airflow drying mode;
FIG. 7 is a schematic view of the airflow path during the wire drying stage in the airflow drying mode;
FIG. 8 is a schematic view of the airflow path during the pre-heat stage in the sheet drying mode;
fig. 9 is a schematic view of the airflow path during the wire drying stage in the sheet drying mode.
Description of element numbers:
1. touch screen
2. Fresh air valve
3. Inlet three-vent valve
4. Preheating air pipe
5. Steam generator
6. Silk drying roller
61. Heating assembly
62. Air duct assembly
621. Air duct joint
622. Outer casing
63. Roller skeleton
631. Shoveling plate
632. Bottom plate
633. Annular plate
641. Outer lining net
642. Filter screen
643. Lining net
65. Base seat
66. Positioning support wheel
67. Driving wheel
68. Seal assembly
681. Connecting part
682. Handle grip
69. Sealing cover
7. Outlet three-ventilation valve
8. First driving source
9. Moisture-removing air valve
10. Heater
11. Circulation fan
12. A second driving source
13. Heat radiation fan
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to be limiting.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms "top", "bottom", "inner", "outer", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
As shown in fig. 1, the invention provides a multifunctional tobacco shred drying simulation device, wherein a core component is a shred drying roller 6. As shown in fig. 3 and 4, wire drying cylinder 6 includes a tunnel assembly 62, a drive wheel 67, and a seal assembly 68. Wherein the air duct assembly 62 includes a hollow outer housing 622 and an air duct interface 621 in communication with the outer housing 622. The number of air duct interfaces 621 is two for simulating the desired airflow into and out of the outer housing 622. Preferably, the air pipe interface 621 adopts a quick chuck, so that an external pipeline is convenient to assemble and disassemble, and the axial direction of the air pipe interface is perpendicular to the axial direction of the outer shell 622, so that the safety risk brought by the feeding direction of the air flow direct-injection outer shell 622 is reduced, the air flow supply is not required to be stopped when materials are replaced, the heat of air inlet and outlet flows is ensured, the quick connection between experimental batches is realized, and the working efficiency is improved. Further, the axes of the two air duct interfaces 21 are positioned on the same straight line.
As shown in fig. 3 and 4, the outer case 622 includes a first end and a second end axially distributed along itself, the first ends of which are sealingly connected to the heating assembly 61, and the heating assembly 61 is used to heat the outer case 622. In particular implementations, the heating assembly 61 includes a mounting plate, and a number of rod heaters and temperature sensors disposed circumferentially spaced along the mounting plate. The space occupied by the heating component 61 can be reduced, and the internal cavity of the outer shell 622 can be uniformly heated, so that the temperature is stable, and a good experimental environment is provided.
As shown in fig. 3 to 5, the driving wheel 67 is hollow inside, and includes a first end and a second end axially distributed in itself, and the first end thereof is rotatably connected to the second end of the outer case 622 and is rotated by the first driving source 8. Preferably, a first groove and a second groove are formed in parallel on the driving wheel 67, both grooves being arc-shaped or ring-shaped, the first driving source 8 being in particular a rotating electric machine. The rotary motor drives the driving wheel 67 to rotate by means of an elastic round belt arranged in the first groove. Adopt rotating electrical machines and elasticity circle belt to drive wheel 67, compare in prior art's mechanical structure hard drive mode, set up like this and can guarantee to skid automatically when drive wheel 67 runs into external obstacle and stop, improved the security, also be convenient for maintain simultaneously. Further, in order to well support the rotation process of the driving wheel 67, the driving wheel 67 is prevented from being deviated during the rotation process and finally separated from the outer shell 622, a plurality of bases 65 are further provided on the second end of the outer shell 622, one positioning supporting wheel 66 is mounted on each base 65, and the plurality of positioning supporting wheels 66 are distributed at intervals along the circumferential direction of the driving wheel 67. Each positioning support wheel 66 is disposed in the second recess to provide a tight stop for the drive wheel 67 while also facilitating subsequent assembly, adjustment and maintenance of the seal assembly 68.
As shown in fig. 3 to 5, the sealing assembly 68 includes a connecting portion 681 having a hollow interior and including a first end and a second end axially distributed along the sealing assembly, and the second end of the driving wheel 67 is connected to the second end of the connecting portion 681 and is sleeved outside the connecting portion 681. A filter assembly is fixedly mounted at a first end of the connection portion 681 and is positioned in the interior cavity of the outer case 622. Specifically, the filtering assembly includes a drum frame 63, an outer liner net 641, a filter screen 642 and an inner liner net 643, the drum frame 63 includes a bottom plate 632, an annular plate 633 and a plurality of shoveling plates 631 spaced between the bottom plate 632 and the annular plate 633, the outer liner net 641, the filter screen 642 and the inner liner net 643 are sequentially disposed outside the plurality of shoveling plates 631 from outside to inside, and supported by the shoveling plates 631, and the annular plate 633 is fixedly connected with a first end of the connecting portion 681 through screws. In operation, an operator may place tobacco material inside the filter assembly through the annular plate 633, and the debris removed by the screen 642 may fall directly into the interior cavity of the outer shell 622 without affecting the subsequent feed filtration process. The shoveling plate 631 plays a role in lifting tobacco materials, the tobacco materials can fall freely after climbing to a high point under the double functions of the shoveling plate 631 and centrifugal force, or can be blown off by hot air at the air pipe interface 621, and the tobacco materials are repeatedly circulated in this way, so that loosening of the tobacco materials is facilitated, and even heating of tobacco is ensured. Compared with the traditional mechanical stirring shoveling plate, the arrangement can effectively reduce the proportion of broken tobacco materials.
In one embodiment of the present invention, the outer and inner screens 641, 643 are formed by rolling two identical 5-10 mesh stainless steel perforated plates sandwiching the screen 642, ensuring that the screen 642 is flat and that the screen 642 provides good filtration. The filter screen 642 is specifically a 50-mesh stainless steel wire screen, and a person skilled in the art can replace steel wire screens with different mesh numbers and different apertures based on the use requirement, for example, a large-aperture steel wire screen can be directly used for baking tobacco leaves to remove the scraps. At the same time, the air flow can pass through the outer liner 641, the filter screen 642 and the inner liner 643 to dry the tobacco materials. Preferably, a handle 682 is further provided on the connection portion 681, and an operator can conveniently adjust the installation position of the sealing assembly 68 through the handle 682.
To ensure tightness of the inner cavity of the outer case 622, a sealing cover 69 is detachably coupled to the coupling portion 681, and the sealing cover 69 seals the filter assembly in the inner cavity of the outer case 622. The connection mode between the sealing cover 69 and the connecting portion 681 may be a conventional locking, screw fixing or the like, or may be a magnetic adsorption connection mode according to a preferred embodiment of the present invention, and a plurality of spring top beads are arranged at intervals on the periphery of the sealing cover 69, and a plurality of grooves corresponding to the spring top beads one by one are formed on the inner wall of the connecting portion 681, so as to limit the sealing cover 69 and ensure the installation stability of the sealing cover 69. The connecting mode is stable and reliable and is convenient for operators to use.
In addition, the sealing cover 69 is made of heat-resistant glass with a metal frame wrapped on the periphery, and the handle is arranged in the center of the sealing cover 69, so that an operator can directly observe the state of materials in the outer shell 622, and the sealing cover is easy to assemble and disassemble.
In operation, the filter assembly is first secured to the first end of the connection portion 681, and then the connection portion 681 is threadably coupled to the drive wheel 67, with the filter assembly being positioned within the outer housing 622. The tobacco material is placed into the filter assembly and then the seal cap 69 is installed to confirm that the tobacco material is in a sealed condition. Then, the first driving source 8 operates to drive the driving wheel 67 to rotate, so as to drive the filter assembly to rotate at a high speed in the inner cavity of the outer housing 622. The tobacco material rotates along with the filter assembly, the shoveling plate 631 repeatedly lifts and disperses the tobacco material to enable the tobacco material to be dried uniformly, and meanwhile, the filter assembly screens out the material scraps, so that the quality of the dried tobacco shred finished product is improved. The sheet drying and air drying process simulation of the tobacco materials are carried out in the tobacco drying roller 6, and the fastest rotating speed of the filter assembly can reach 120RMP under the drive of the first drive source 8. The temperature of the wall of the outer shell 622 is adjusted to 80-170 ℃ under the action of the heating assembly 1.
As shown in fig. 1, 2 and 3, two air duct interfaces 621, wherein one air duct interface 621 is respectively communicated with the first end of the air source and the preheating air duct 4 through the inlet three-way ventilation valve 3, and the other air duct interface 621 is respectively communicated with the second end of the tide-discharging air valve 9 and the preheating air duct 4 through the outlet three-way ventilation valve 7. Meanwhile, the tide-discharging air valve 9 is communicated with an air source through a pipeline, and a loop is formed inside the device. The air source comprises a fresh air valve 2 and a circulating fan 11 which are independently arranged and mutually communicated, the fresh air valve 2 is communicated with the external environment, and the circulating fan 11 rotates under the driving of a second driving source 12 according to the required rotation speed to output air flows with different wind speeds. A hot air heater 10 is also arranged on a pipeline of the inlet three ventilation valve 3 communicated with the air source, and the hot air heater 10 can heat air flow in the pipeline. The preheating wind pipe 4 is communicated with the steam generator 5. Preferably, the invention further comprises a plurality of cooling fans 13 arranged on the top of the device, which can cool the device, and avoid damage to parts or safety risks caused by overheating.
For control, the invention also comprises a control system, a touch screen 1 connected with the control system, and a wind speed sensor, a temperature sensor, a humidity sensor and the like which are arranged in the pipeline, wherein the inlet three vent valve 3, the outlet three vent valve 7, the first driving source 8 and the second driving source 12 are all connected with the control system. The operator can set corresponding parameters through the touch screen 1, the sensor feeds back the acquired information to the control system, and the control system displays on the touch screen 1, so that the operator can conveniently arrange data and control.
The invention adopts full-closed loop real-time temperature detection and control, and all heating components and pipelines adopt heat insulation protection measures, so that the safety of equipment and operators is ensured. Before the air flow temperature reaches the preset temperature, the air flow does not flow through the drying drum 6, but flows through the preheating air pipe 4, and after the air flow temperature reaches the preset temperature, the air flow completely flows through the drying drum 6, so that the tobacco materials are dried.
The invention also provides a use method of the multifunctional tobacco shred drying simulation device, wherein the implementation of the pneumatic drying mode requires superheated steam airflow with oxygen content below 5% and temperature of 160-250 ℃, so the method comprises the following steps:
s1, preheating: as shown in fig. 6, the heating component 61, the fresh air valve 2 and the deliquescent air valve 9 are closed, the inlet three-way air valve 3 and the outlet three-way air valve 7 are controlled, the airflow circulation path is switched to the preheating air pipe 4, the hot air heater 10 and the circulating fan 11 are opened at the moment, airflow flows in a closed pipeline, after the wind speed sensor detects that the airflow speed is stable, the steam generator 5 and the deliquescent air valve 9 are opened, saturated steam generated by the steam generator 5 is sprayed into the preheating air pipe 4, oxygen in the deliquescent air valve 9 is discharged, the air flow oxygen content in the pipeline is ensured to be less than 5%, the air flow temperature and the speed reach the set conditions, then the steam generator 5 and the deliquescent air valve 9 are closed, the hot air heater 10 and the circulating fan 11 continue to work, and the preheating work is completed.
S2, silk drying stage: as shown in fig. 7, tobacco materials to be dried (the amount of the tobacco materials to be dried is 20-100 g) are placed into a filter assembly, a first driving source 8 drives the filter assembly to rotate at a set rotating speed, an inlet three-way ventilation valve 3 and an outlet three-way ventilation valve 7 are controlled, an airflow circulation path is switched to a tobacco drying drum 6, the airflow passes through the filter assembly, the tobacco materials are fully contacted with the airflow, quick drying is completed within 10 seconds, a moisture-discharging air valve 9 is opened, moisture generated in the drying process is discharged, after a preset time is reached, the inlet three-way ventilation valve 3 and the outlet three-way ventilation valve 7 are controlled, the airflow circulation path is switched to a preheating air pipe 4 again, the contact between the tobacco materials and the airflow is cut off, and the airflow drying is completed.
The sheet drying mode is mainly based on high-temperature heating drying of the outer shell 622, and is assisted by air flow, and therefore comprises the following steps:
s1, preheating: as shown in fig. 8, the heating assembly 61 and the fresh air valve 2 are opened, the moisture-removing air valve 9 is closed, the inlet three-way air valve 3 and the outlet three-way air valve 7 are controlled, the air flow path is switched to the preheating air pipe 4, the hot air heater 10 and the circulating fan 11 are opened at this time, the air flows in the closed pipeline, after the air speed of the air flow is stable, the moisture-removing air valve 9 is opened, the temperature of the outer shell 622, the air flow temperature and the air flow speed are ensured to reach the set conditions, and the preheating work is completed. During this process, the maximum temperature of the outer housing 622 may be 170 ℃ and the maximum temperature of the air flow may be 140 ℃.
S2, silk drying stage: the tobacco materials to be dried (the putting amount of each batch is 20-100 g) are put into a filter assembly, a first driving source 8 drives the filter assembly to rotate according to a set rotating speed, an inlet three-ventilation valve 3 and an outlet three-ventilation valve 7 are controlled, an airflow circulation path is switched to a drying drum 6, the airflow passes through the filter assembly, slow drying of the tobacco materials is realized within 4-7 minutes under the action of a high-temperature outer shell 622 and the airflow, moisture generated in the drying process is discharged by a moisture-discharging air valve 9, after a preset time is reached, the inlet three-ventilation valve 3 and the outlet three-ventilation valve 7 are controlled, the airflow circulation path is switched to a preheating air pipe 4 again, the contact between the tobacco materials and the airflow is cut off, and drying of the thin plate is completed.
Table 1 is a set of useful combinations of process parameters:
| in dry form | Drying of the sheet | Air flow drying |
| Moisture content (%) | 20 | 20 |
| Weight of single dried tobacco shred (g) | 75 | 30 |
| Temperature setting of process air (DEG C) | 130 | 200 |
| Proportion setting (%) | 90 | 90 |
| Moisture removal air door proportion setting (%) | 20 | 5 |
| Steam injection time setting(s) | —— | 8 |
| Barrel wall temperature setting (DEG C) | 150 | 105 |
| Barrel rotation speed setting (RPM) | 20 | 55 |
| Drying time setting (S) | 260 | 10 |
| Moisture content (%) | 13.0 | 13.1 |
TABLE 1
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.
Claims (9)
1. A multi-functional tobacco cut tobacco baking simulation device, characterized by comprising:
a drying wire roller (6) comprising an air duct assembly (62), a driving wheel (67) and a sealing assembly (68), wherein the air duct assembly (62) comprises a hollow outer shell (622) and an air duct interface (621) communicated with the outer shell (622); a first end of the outer shell (622) is in sealing connection with the heating assembly (61); the first end of the driving wheel (67) is rotationally connected with the second end of the outer shell (622) and is driven by a first driving source (8) to rotate; the sealing assembly (68) comprises a connecting part (681), the second end of the driving wheel (67) is connected with the second end of the connecting part (681) and sleeved outside the connecting part (681), and the first end of the connecting part (681) is connected with a filter assembly which is positioned in the inner cavity of the outer shell (622); a sealing cover (69) is detachably connected in the connecting part (681), and the sealing cover (69) seals the filtering assembly in the outer shell (622);
the number of the air pipe connectors (621) is two, one air pipe connector (621) is respectively communicated with the air source and the first end of the preheating air pipe (4) through an inlet three-way ventilation valve (3), the other air pipe connector (621) is respectively communicated with the tide-discharging air valve (9) and the second end of the preheating air pipe (4) through an outlet three-way ventilation valve (7), and the tide-discharging air valve (9) is communicated with the air source through a pipeline; the air source comprises a fresh air valve (2) and a circulating fan (11) which are independently arranged and communicated with each other, and a hot air heater (10) is further arranged on a pipeline of the inlet three-ventilation valve (3) communicated with the air source; the preheating air pipe (4) is communicated with the steam generator (5);
the filter component comprises a roller framework (63), an outer lining net (641), a filter screen (642) and an inner lining net (643), wherein the roller framework (63) comprises a bottom plate (632), annular plates (633) and a plurality of shoveling plates (631) which are distributed between the bottom plate (632) and the annular plates (633) at intervals, the outer lining net (641), the filter screen (642) and the inner lining net (643) are sequentially arranged outside the shoveling plates (631) from outside to inside, and the annular plates (633) are fixedly connected with the first ends of the connecting parts (681).
2. The multi-function tobacco shred simulation device according to claim 1, wherein the axial direction of the air duct interface (621) is perpendicular to the axial direction of the outer housing (622).
3. The multi-function tobacco cut tobacco simulation device of claim 1 wherein the heating assembly (61) comprises a number of rod heaters and temperature sensors disposed on a mounting plate.
4. The multifunctional tobacco shred simulation device according to claim 1, wherein the driving wheel (67) is provided with a first groove, the first driving source (8) is a rotating motor, and the rotating motor drives the driving wheel (67) to rotate through a belt arranged in the first groove.
5. The multifunctional tobacco shred simulation device according to claim 1 or 4, characterized in that a plurality of positioning support wheels (66) are further arranged at the second end of the outer shell (622), a second groove is arranged on the driving wheel (67), and the positioning support wheels (66) are arranged in the second groove.
6. The multi-function tobacco cut-tobacco simulation device according to claim 1, wherein the sealing cover (69) is made of heat-resistant glass, so that an operator can directly observe the state of materials in the outer shell (622).
7. A multi-function tobacco cut tobacco simulation device according to claim 1, characterized in that the sealing cover (69) is magnetically attracted in the connection (681).
8. A method of using the multi-functional tobacco cut-tobacco drying simulation apparatus of claim 1, comprising:
air flow drying mode: closing a heating assembly (61), a fresh air valve (2) and a deliquescent air valve (9), controlling an inlet three-ventilation valve (3) and an outlet three-ventilation valve (7), switching an airflow circulation path to a preheating air pipe (4), opening a hot air heater (10) and a circulating fan (11) at the moment, opening a steam generator (5) and the deliquescent air valve (9) after the air speed of airflow is stable, discharging oxygen in a pipe to ensure that the temperature, the speed and the oxygen content of the airflow reach set conditions, closing the steam generator (5) and the deliquescent air valve (9), and continuously working the hot air heater (10) and the circulating fan (11) to finish the preheating work; then, putting tobacco materials to be dried into a filter assembly, driving the filter assembly to rotate by a first driving source (8), controlling an inlet three-ventilation valve (3) and an outlet three-ventilation valve (7), switching an airflow circulation path to a tobacco drying roller (6), enabling the airflow to pass through the filter assembly, enabling the tobacco materials to fully contact the airflow, finishing quick drying, simultaneously opening a moisture-discharging air valve (9), discharging moisture, controlling the inlet three-ventilation valve (3) and the outlet three-ventilation valve (7) after reaching a preset time, switching the airflow circulation path to a preheating air pipe (4) again, cutting off the contact between the tobacco materials and the airflow, and finishing the airflow drying;
sheet drying mode: opening a heating assembly (61) and a fresh air valve (2), closing a moisture-discharging air valve (9), controlling an inlet three-air valve (3) and an outlet three-air valve (7), switching an airflow circulation path to a preheating air pipe (4), opening a hot air heater (10) and a circulating fan (11) at the moment, opening the moisture-discharging air valve (9) after the air speed of airflow is stable, ensuring that the temperature of an outer shell (622), the air flow temperature and the speed reach set conditions, and completing the preheating work; then, tobacco materials to be dried are placed into the filter assembly, the first driving source (8) drives the filter assembly to rotate, the inlet three-ventilation valve (3) and the outlet three-ventilation valve (7) are controlled, the airflow circulation path is switched to the tobacco drying roller (6), the airflow passes through the filter assembly, the tobacco materials are slowly dried under the action of the high-temperature outer shell (622) and the airflow, moisture is discharged through the moisture discharge air valve (9), after the preset time is reached, the inlet three-ventilation valve (3) and the outlet three-ventilation valve (7) are controlled, the airflow circulation path is switched to the preheating air pipe (4) again, the contact between the tobacco materials and the airflow is cut off, and the drying of the thin plate is completed.
9. The method of claim 8, wherein the oxygen content of the gas stream passing through the filter assembly is less than 5% in the gas stream drying mode and the temperature is in the range of 160-250 ℃.
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