CN115083253A - Multifunctional tobacco shred drying simulation device and use method thereof - Google Patents
Multifunctional tobacco shred drying simulation device and use method thereof Download PDFInfo
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- CN115083253A CN115083253A CN202210772552.9A CN202210772552A CN115083253A CN 115083253 A CN115083253 A CN 115083253A CN 202210772552 A CN202210772552 A CN 202210772552A CN 115083253 A CN115083253 A CN 115083253A
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Abstract
The invention provides a multifunctional tobacco shred drying simulation device, which comprises: the tobacco drying 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 pipe connector; the number of the air pipe connectors is two, one air pipe connector is respectively communicated with an air source and a first end of the preheating air pipe through an inlet three-way air valve, the other air pipe connector is respectively communicated with a moisture exhaust air valve and a second end of the preheating air pipe through an outlet three-way air valve, and the moisture exhaust 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 also arranged on a pipeline for communicating the inlet three-way air valve with the air source; the preheating air pipe is communicated with the steam generator. The invention provides a using method of the multifunctional tobacco shred drying simulation device. The invention has the advantages that the simulation of the sheet drying and the airflow drying of the cut tobacco is realized by 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 drying simulation device and a using method thereof.
Background
The cut tobacco drying process is an important link in the cigarette production and manufacturing process, and two cut tobacco drying processes of airflow drying and sheet drying are commonly used in the tobacco industry at present. The main technical characteristics of the pneumatic drying process are as follows: the drying air flow penetrates through the tobacco shreds to take away the moisture of the tobacco shreds, so that the drying effect is achieved; the main technical characteristics of the thin plate drying process are as follows: the tobacco shreds are dried by heating the thin plate on the wall of the cylinder. Different drying modes and process parameter conditions have important influence on the chemical components and the sensory style of the tobacco, and further influence the quality of cigarette products. By researching the cut tobacco drying process, the influence rules of different drying modes and different parameters on the chemical components and sensory quality of the tobacco can be further clarified, so that the cut tobacco drying process selection and parameter optimization of different cigarette products are supported. Because the tobacco shred drying equipment for tobacco production has large capacity, and several tons of tobacco raw materials need to be input per hour, the tobacco shred drying equipment is directly used for experimental research, which causes higher raw material consumption cost and influences the normal production arrangement of a cigarette factory, so the research can be generally carried out in a laboratory or a test line with small capacity.
When relevant cut-tobacco drying research is carried out in a laboratory, test equipment capable of simulating cut-tobacco drying conditions of normal production equipment is indispensable. The conventional laboratory simulation cut-tobacco drier has a single function, can only simulate one cut-tobacco drying process, cannot meet the requirements of flexible and changeable laboratory experiment processes, and has great limitation. At present, equipment which is suitable for a laboratory and can perform sheet drying and air flow drying on a small amount of tobacco shred samples is needed.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide a tobacco shred baking simulation apparatus having both air flow drying and sheet drying functions.
The invention provides a multifunctional tobacco shred drying simulation device, which comprises: the tobacco drying 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 pipe connector communicated with the outer shell; the first end of the outer shell is hermetically connected with the heating assembly; 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 outside 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 can be detachably connected in the connecting part and seals the filter assembly in the outer shell; the number of the air pipe connectors is two, one air pipe connector is respectively communicated with an air source and a first end of a preheating air pipe through an inlet three-way air valve, the other air pipe connector is respectively communicated with a moisture exhaust air valve and a second end of the preheating air pipe through an outlet three-way air valve, and the moisture exhaust 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 are mutually communicated, and a hot air heater is also arranged on a pipeline for communicating the inlet three-way air valve with the air source; the preheating air pipe is communicated with the steam generator.
Preferably, an axial direction of the air duct interface is perpendicular to an axial direction of the outer housing.
Preferably, the heating assembly comprises a plurality of rod heaters and temperature sensors disposed on a mounting plate.
Preferably, a first groove is formed in the driving wheel, 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, filtering component includes drum skeleton, outer lining net, filter screen and inside lining net, drum skeleton includes that bottom plate, annular slab and interval distribution are in a plurality of shoveling plates between bottom plate and the annular slab, outer lining net, filter screen and inside lining net outside-in set gradually a plurality of shoveling plate outsides, the annular slab is with the first end fixed connection of connecting portion.
Preferably, the sealing cover is made of heat-resistant glass, so that an operator can directly observe the state of the materials in the outer shell conveniently.
Preferably, the sealing cap is magnetically attracted in the connecting portion.
The invention also provides a use method of the multifunctional tobacco shred drying simulation device, which comprises the following steps:
airflow drying mode: closing the heating assembly, the fresh air valve and the moisture exhaust valve, controlling the inlet three-way air valve and the outlet three-way air valve, switching an airflow flow path to a preheating air pipe, opening the hot air heater and the circulating fan at the moment, opening the steam generator and the moisture exhaust valve after the air speed of the airflow is stable, exhausting oxygen in the pipe to ensure that the temperature, the speed and the oxygen content of the airflow reach set conditions, then closing the steam generator and the moisture exhaust valve, and continuing to work by the hot air heater and the circulating fan to finish 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-way air valve and an outlet three-way air valve, switching an air flow circulation path to a tobacco drying roller, enabling the air flow to pass through the filter assembly, enabling the tobacco materials to be fully contacted with the air flow, completing quick drying, simultaneously opening a moisture exhaust air valve, exhausting moisture, after a preset time is reached, controlling the inlet three-way air valve and the outlet three-way air valve, switching the air flow circulation path to a preheating air pipe again, cutting off the contact between the tobacco materials and the air flow, and completing air flow drying;
sheet drying mode: opening the heating assembly and the fresh air valve, closing the moisture exhaust air valve, controlling the inlet three-way air valve and the outlet three-way air valve, switching an airflow circulation path to a preheating air pipe, opening the hot air heater and the circulating fan at the moment, opening the moisture exhaust air valve after the air speed of the airflow is stable, ensuring that the temperature, the airflow temperature and the speed of the outer shell reach set conditions, and completing preheating work; and then, putting the tobacco materials to be dried into the filter assembly, driving the filter assembly to rotate by the first driving source, controlling the inlet three-way air valve and the outlet three-way air valve, switching the air flow circulation path to the tobacco drying roller, allowing the air flow to pass through the filter assembly, slowly drying the tobacco materials under the action of the high-temperature outer shell and the air flow, discharging moisture through the moisture discharge air valve, controlling the inlet three-way air valve and the outlet three-way air valve after the preset time is reached, switching the air flow circulation path to the preheating air pipe again, cutting off the contact between the tobacco materials and the air flow, and finishing the drying of the thin plate.
Preferably, in the pneumatic drying mode, the oxygen content of the air flow passing through the filter assembly is less than 5%, and the temperature range is 160-.
The novel multifunctional tobacco shred drying roller has the advantages that the novel multifunctional tobacco shred drying roller is suitable for developing drying process simulation aiming at a small quantity of tobacco shred samples in a laboratory, realizes the simultaneous realization of two process simulations of thin plate drying and air flow drying of tobacco shreds by only one device, can arrange a complex process of alternately executing the thin plate drying and the air flow drying according to process requirements, and meets the flexible and changeable use requirements of experimental projects.
Drawings
FIG. 1 is a front view of the multifunctional cut-tobacco drying simulation device of the present invention;
FIG. 2 is a left side view of the multifunctional cut-tobacco drying simulation device of the present invention;
FIG. 3 is a perspective view of a dryer cylinder;
FIG. 4 is an exploded view of a dryer cylinder;
FIG. 5 is a front view of the dryer cylinder;
FIG. 6 is a schematic diagram of the gas flow path during the pre-heating stage in the gas flow drying mode;
FIG. 7 is a schematic view of the airflow path during the shred drying stage in the airflow drying mode;
FIG. 8 is a schematic view of the gas flow path during the preheating phase in the sheet drying mode;
fig. 9 is a schematic view of the air flow path during the shred drying stage in the sheet drying mode.
Description of the element reference numerals:
1 touch control screen
2 fresh air valve
3 inlet three-way air valve
4 preheating air pipe
5 steam generator
6 cut tobacco drying roller
61 heating assembly
62 air duct assembly
621 air pipe connector
622 outer casing
63 roller framework
631 shoveling plate
632 bottom plate
633 annular plate
641 external lining net
642 Screen
643 inner liner net
65 base
66 positioning support wheel
67 drive wheel
68 seal assembly
681 connecting part
682 handle
69 sealing cover
7-outlet three-way air valve
8 first driving source
9 moisture exhausting air valve
10 heater
11 circulating fan
12 second driving source
13 Heat radiation fan
Detailed Description
The following describes 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 limit the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. 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 addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in figure 1, the present invention provides a multifunctional tobacco shred drying simulation device, wherein the core component is a shred drying roller 6. As shown in fig. 3 and 4, the dryer drum 6 includes an air duct assembly 62, a drive wheel 67, and a seal assembly 68. The air duct assembly 62 includes a hollow outer casing 622 and an air duct interface 621 communicating with the outer casing 622. The number of the air duct connectors 621 is two, so as to simulate the required air flow into and out of the outer casing 622. Preferably, air pipe connector 621 adopts quick chuck, is convenient for load and unload outside pipeline, and its axial perpendicular to shell body 622's axial, has so both reduced the air current and has directly spouted the safe risk that shell body 622 feed direction brought, need not to stop the air current supply again when changing the material, has guaranteed the heat degree of business turn over air current, has realized the quick link up between experimental batches, has improved work efficiency. Further, the axes of the two air duct interfaces 21 are located on the same straight line.
As shown in fig. 3 and 4, the outer casing 622 includes a first end and a second end axially distributed along the outer casing 622, the first end of the outer casing is connected with the heating assembly 61 in a sealing manner, and the heating assembly 61 is used for heating the outer casing 622. In a specific implementation, the heating assembly 61 includes a mounting plate, and a plurality of rod heaters and temperature sensors spaced circumferentially along the mounting plate. Set up like this firstly can reduce heating element 61's occupation space, secondly can ensure that the inside cavity of shell body 622 is heated evenly, and the temperature is stable to provide good experimental environment.
As shown in fig. 3 to 5, the driving wheel 67 is hollow, and includes a first end and a second end axially distributed along the driving wheel, and the first end of the driving wheel is rotatably connected to the second end of the outer housing 622 and is driven by the first driving source 8 to rotate. Preferably, a first groove and a second groove which are parallel to each other are formed in the driving wheel 67, the two grooves are both arc-shaped or annular, and the first driving source 8 is specifically a rotating motor. The rotary motor drives the drive wheel 67 to rotate via an elastic round belt disposed in the first groove. Adopt rotating electrical machines and elasticity circle belt to drive wheel 67, compare in the hard drive mode of prior art's mechanical structure, set up like this and can guarantee to run off when driving wheel 67 meets external hindrance automatic slipping, improved the security, also be convenient for simultaneously maintain the maintenance. Further, in order to support the rotation process of the driving wheel 67 well and avoid the deviation of the driving wheel 67 in the rotation process, and finally separate from the outer shell 622, a plurality of bases 65 are further disposed at the second end of the outer shell 622, one positioning support wheel 66 is mounted on each base 65, and the plurality of positioning support wheels 66 are distributed at intervals along the circumferential direction of the driving wheel 67. Each positioning support wheel 66 is arranged in the second groove, so that the driving wheel 67 can be tightly pressed and limited, and meanwhile, the sealing assembly 68 is convenient to assemble, adjust and maintain subsequently.
As shown in fig. 3-5, the sealing assembly 68 includes a connecting portion 681 having a hollow interior and a first end and a second end axially extending along the connecting portion 681, wherein the second end of the driving wheel 67 is connected to the second end of the connecting portion 681 and is disposed outside the connecting portion 681. A filter assembly is fixedly mounted to a first end of the connecting portion 681 and is positioned within the interior cavity of the outer housing 622. Specifically, the filter assembly includes a drum frame 63, an outer screen 641, a filter screen 642 and an inner screen 643, the drum frame 63 includes a bottom plate 632, a ring plate 633 and a plurality of shoveling plates 631 spaced between the bottom plate 632 and the ring plate 633, the outer screen 641, the filter screen 642 and the inner screen 643 are sequentially disposed outside the shoveling plates 631 from outside to inside and are supported by the shoveling plates 631, and the ring plate 633 is fixedly connected to the first end of the connecting portion 681 through screws. In operation, an operator can place tobacco material inside the filter assembly through the annular plate 633, and the tobacco particles screened off by the screen 642 can fall directly into the internal cavity of the outer housing 622 without affecting the subsequent feeding and filtering process. The shoveling plate 631 plays a role in lifting tobacco materials, the tobacco materials freely fall after climbing to a high point under the dual functions of the shoveling plate 631 and centrifugal force, or are blown off by hot air at the air pipe connector 621, and the repeated circulation is more favorable for loosening the tobacco materials, so that the tobacco materials are uniformly heated. Compared with the traditional mechanical stirring shoveling plate, the device can effectively reduce the occupation ratio of broken tobacco materials.
In one embodiment of the present invention, the outer and inner liners 641 and 643 are made of two identical stainless steel 5-10 mesh sheets rolled together with a screen 642 sandwiched therebetween to ensure that the screen 642 is flat and that the screen 642 performs well. The filtering net 642 is a stainless steel wire net with 50 meshes, and those skilled in the art can replace the wire nets with different meshes and different apertures according to the use requirements, for example, the large aperture wire net can be directly used for baking tobacco leaves to remove dust. At the same time, the air flow may pass through the outer mesh 641, the screen 642 and the inner mesh 643 to dry the tobacco material. Preferably, a handle 682 is further provided on the connecting portion 681, so that an operator can easily adjust the installation position of the sealing assembly 68 by means of the handle 682.
To ensure the sealing of the inner cavity of the outer case 622, a sealing cap 69 is also detachably connected within the connecting portion 681, and the sealing cap 69 seals the filter assembly in the inner cavity of the outer case 622. The connection between the sealing cover 69 and the connecting portion 681 may be a conventional locking, screwing, or the like, or, as in a preferred embodiment of the present invention, a magnetic adsorption connection is adopted, and a plurality of spring support beads are spaced around the sealing cover 69, and a plurality of grooves corresponding to the spring support beads 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 connection mode is stable and reliable, and is convenient for operators to use.
In addition, the sealing cover 69 of the present invention is made of heat-resistant glass with a metal frame wrapped around the periphery, and a handle is installed at the center of the sealing cover 69, so that an operator can directly observe the state of the material in the outer case 622 and the sealing cover is easy to assemble and disassemble.
In operation, the filter assembly is secured to the first end of the connecting portion 681 and the connecting portion 681 is threadably engaged with the drive wheel 67, with the filter assembly 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. The first drive source 8 is then operated to rotate the drive wheel 67, which in turn rotates the filter assembly at a high speed within the interior cavity of the outer housing 622. The tobacco material rotates along with the filtering component, the shoveling plate 631 repeatedly lifts and disperses the tobacco material to enable the tobacco material to be dried uniformly, and meanwhile the filtering component screens out material powder, so that the quality of cut tobacco drying finished products is improved. The simulation of the sheet drying and the pneumatic drying process of the tobacco materials is carried out in the cut tobacco drying roller 6, and the fastest rotating speed of the filter assembly can reach 120RMP under the driving of the first driving source 8. Under the action of the heating assembly 1, the temperature of the cylinder wall of the outer shell 622 is adjusted to be 80-170 ℃.
As shown in fig. 1, 2 and 3, one air duct interface 621 is respectively communicated with an air source and a first end of the preheating air duct 4 through an inlet three-way air valve 3, and the other air duct interface 621 is respectively communicated with a moisture exhaust air valve 9 and a second end of the preheating air duct 4 through an outlet three-way air valve 7. Meanwhile, the moisture exhaust air valve 9 is communicated with an air source through a pipeline, and a loop is formed inside the device. Wherein, the wind regime includes independent setting and fresh air blast gate 2 and circulating fan 11 that communicate each other, and fresh air blast gate 2 is linked together with the external environment condition, and circulating fan 11 then rotates according to required rotational speed under the drive of second driving source 12, outputs the air current of different wind speeds. A hot air heater 10 is also arranged on a pipeline of the inlet three-way air valve 3 communicated with an air source, and the hot air heater 10 can heat air flow in the pipeline. The preheating air pipe 4 is communicated with the steam generator 5. Preferably, the present invention further comprises a plurality of heat dissipation fans 13 disposed on the top of the device, which can cool the device to avoid damage to components or safety risks due to overheating.
For convenience of control, the invention further comprises a control system, a touch screen 1 connected with the control system, and an air speed sensor, a temperature sensor, a humidity sensor and the like arranged in the pipeline, wherein the inlet three-way air valve 3, the outlet three-way air valve 7, the first driving source 8 and the second driving source 12 are all connected with the control system. An operator can set corresponding parameters through the touch screen 1, the sensor feeds collected information back to the control system, and the control system displays the information on the touch screen 1, so that the operator can conveniently sort and control the data.
The invention adopts full closed-loop real-time temperature detection and control, and all heating parts and pipelines adopt heat insulation protection measures, thereby ensuring the safety of equipment and operators. Before the temperature of the air flow reaches the preset temperature, the air flow does not flow through the cut tobacco drying roller 6, but flows through the preheating air pipe 4, and after the temperature of the air flow reaches the preset temperature, the air flow completely flows through the cut tobacco drying roller 6 to dry the tobacco materials.
The invention also provides a use method of the multifunctional tobacco shred drying simulation device, wherein the superheated steam airflow with the oxygen content of below 5% and the temperature of 160-250 ℃ is required for realizing the airflow drying mode, so that the use method comprises the following steps:
s1, preheating stage: as shown in fig. 6, the heating assembly 61, the fresh air valve 2 and the moisture exhaust valve 9 are closed, the inlet three-way air valve 3 and the outlet three-way air valve 7 are controlled, the air flow circulation path is switched to the preheating air pipe 4, at this time, the hot air heater 10 and the circulating fan 11 are opened, the air flow flows in a closed pipeline, after the air speed sensor detects that the air speed of the air flow is stable, the steam generator 5 and the moisture exhaust valve 9 are opened, the saturated steam generated by the steam generator 5 is sprayed into the preheating air pipe 4, the moisture exhaust valve 9 exhausts the oxygen in the pipe, the oxygen content of the air flow in the pipeline is ensured to be below 5%, the temperature and the speed of the air flow reach the set conditions, then the steam generator 5 and the moisture exhaust valve 9 are closed, and the hot air heater 10 and the circulating fan 11 continue to work, so as to complete the preheating work.
S2, a cut tobacco drying stage: as shown in fig. 7, tobacco materials to be dried (the input amount of each batch is 20-100g) are put into the filter assembly, the first driving source 8 drives the filter assembly to rotate according to a set rotating speed, the inlet three-way air valve 3 and the outlet three-way air valve 7 are controlled, the airflow flow path is switched to the cut tobacco drying roller 6, the tobacco materials are fully contacted with the airflow after the airflow passes through the filter assembly, the rapid drying is completed within 10 seconds, meanwhile, the moisture exhaust air valve 9 is opened, moisture generated in the drying process is exhausted, after a preset time is reached, the inlet three-way air valve 3 and the outlet three-way air valve 7 are controlled, the airflow flow path is switched to the 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 the high-temperature heating drying of the outer case 622, and is assisted by the air flow auxiliary drying, so that the method comprises the following steps:
s1, preheating stage: as shown in fig. 8, the heating assembly 61 and the fresh air valve 2 are opened, the moisture exhaust air valve 9 is closed, the inlet three-way air valve 3 and the outlet three-way air valve 7 are controlled, the airflow flow path is switched to the preheating air pipe 4, at this time, the hot air heater 10 and the circulating fan 11 are opened, the airflow flows in the closed pipeline, and after the air speed of the airflow is stabilized, the moisture exhaust air valve 9 is opened to ensure that the temperature, the airflow temperature and the speed of the outer shell 622 all reach the set conditions, thereby completing the preheating operation. During this process, the maximum temperature of the outer enclosure 622 may reach 170 ℃ and the maximum temperature of the gas flow may reach 140 ℃.
S2, a cut tobacco drying stage: tobacco materials to be dried (the input amount of each batch is 20-100g) are placed into the filter assembly, the first driving source 8 drives the filter assembly to rotate according to a set rotating speed, the inlet three-way air valve 3 and the outlet three-way air valve 7 are controlled, the airflow flowing path is switched to the cut tobacco drying roller 6, the airflow passes through the filter assembly, the tobacco materials are slowly dried within 4-7 minutes under the action of the high-temperature outer shell 622 and the airflow, moisture generated in the drying process is discharged through the moisture discharging air valve 9, after the preset time is reached, the inlet three-way air valve 3 and the outlet three-way air valve 7 are controlled, the airflow flowing path is switched to the preheating air pipe 4 again, 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 process parameter combinations:
| in dry form | Sheet drying | Air flow drying |
| Moisture content (%) of tobacco material before drying | 20 | 20 |
| Single drying cut tobacco weight (g) | 75 | 30 |
| Process air temperature setting (. degree. C.) | 130 | 200 |
| Hot air door ratio setting (%) | 90 | 90 |
| Moisture extraction air door ratio setting (%) | 20 | 5 |
| Steam injection time setting(s) | —— | 8 |
| Cylinder wall temperature setting (. degree. C.) | 150 | 105 |
| Barrel speed setting (RPM) | 20 | 55 |
| Drying time setting (S) | 260 | 10 |
| Moisture content of dried tobacco shred (%) | 13.0 | 13.1 |
TABLE 1
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A multi-functional tobacco cut-tobacco drying simulator, characterized by comprising:
the tobacco drying roller (6) comprises 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); the first end of the outer shell (622) is connected with the heating assembly (61) in a sealing mode; 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 also detachably connected in the connecting part (681), and the sealing cover (69) seals the filter 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 an air source and a first end of the preheating air pipe (4) through an inlet three-way air valve (3), the other air pipe connector (621) is respectively communicated with a moisture exhaust air valve (9) and a second end of the preheating air pipe (4) through an outlet three-way air valve (7), and the moisture exhaust 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 are mutually communicated, and a hot air heater (10) is also arranged on a pipeline for communicating the inlet three-way air valve (3) with the air source; the preheating air pipe (4) is communicated with the steam generator (5).
2. A multi-function tobacco cut-tobacco drier 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. A multi-function tobacco cut-tobacco simulator according to claim 1, wherein the heating assembly (61) comprises a plurality of rod heaters and temperature sensors disposed on a mounting plate.
4. A multi-function tobacco cut-tobacco drying simulator according to claim 1, wherein the driving wheel (67) is provided with a first groove, the first driving source (8) is a rotary motor, and the rotary motor drives the driving wheel (67) to rotate through a belt disposed in the first groove.
5. A multi-functional tobacco cut-tobacco drier simulation device according to claim 1 or 4, wherein a plurality of positioning support wheels (66) are further provided at the second end of the outer casing (622), a second groove is provided in the driving wheel (67), and the positioning support wheels (66) are provided in the second groove.
6. A multi-function tobacco cut-tobacco drier simulation arrangement according to claim 1, wherein the filter assembly comprises a drum frame (63), an outer lining net (641), a filter screen (642) and an inner lining net (643), the drum frame (63) comprises a bottom plate (632), a ring plate (633) and a plurality of shoveling plates (631) distributed at intervals between the bottom plate (632) and the ring plate (633), the outer lining net (641), the filter screen (642) and the inner lining net (643) are arranged outside the shoveling plates (631) in sequence from outside to inside, and the ring plate (633) is fixedly connected with the first end of the connecting portion (681).
7. A multi-purpose tobacco cut-tobacco drying simulator according to claim 1, wherein the sealing cover (69) is made of heat-resistant glass, which facilitates direct observation of the state of the material in the outer housing (622) by an operator.
8. A multi-purpose tobacco cut-tobacco simulator according to claim 1, characterized in that the sealing cap (69) is magnetically attracted in the connecting portion (681).
9. A method of using the multifunctional tobacco cut-tobacco drier simulation apparatus of claim 1, comprising:
airflow drying mode: closing the heating assembly (61), the fresh air valve (2) and the moisture exhaust valve (9), controlling the inlet three-way air valve (3) and the outlet three-way air valve (7), switching an airflow flow path to the preheating air pipe (4), opening the hot air heater (10) and the circulating fan (11), opening the steam generator (5) and the moisture exhaust valve (9) after the air speed of the airflow is stable, exhausting oxygen in the pipe, ensuring that the temperature, the speed and the oxygen content of the airflow reach set conditions, then closing the steam generator (5) and the moisture exhaust valve (9), and continuing to work the hot air heater (10) and the circulating fan (11) to finish 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-way air valve (3) and an outlet three-way air valve (7), switching an air flow circulation path to a tobacco drying roller (6), enabling the air flow to pass through the filter assembly, enabling the tobacco materials to be fully contacted with the air flow to finish quick drying, simultaneously opening a moisture exhaust air valve (9), exhausting moisture, controlling the inlet three-way air valve (3) and the outlet three-way air valve (7) after a preset time is reached, switching the air flow circulation path to a preheating air pipe (4) again, cutting off the contact between the tobacco materials and the air flow, and finishing air flow drying;
sheet drying mode: opening the heating assembly (61) and the fresh air valve (2), closing the moisture exhaust air valve (9), controlling the inlet three-way air valve (3) and the outlet three-way air valve (7), switching an airflow circulation path to the preheating air pipe (4), opening the hot air heater (10) and the circulating fan (11), and opening the moisture exhaust air valve (9) after the air speed of the airflow is stable to ensure that the temperature, the airflow temperature and the speed of the outer shell (622) reach set conditions, thereby completing preheating work; then, the tobacco materials to be dried are placed into the filter assembly, the filter assembly is driven to rotate by the first driving source (8), 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 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-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) again, contact between the tobacco materials and the airflow is cut off, and drying of the thin plate is completed.
10. The method as claimed in claim 9, wherein the air flow passing through the filter assembly in the air flow drying mode has an oxygen content of less than 5% and a temperature in the range of 160 ℃ and 250 ℃.
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| CN115083253B (en) | 2023-09-19 |
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