A pressure-increasing light-shielding tobacco stem conditioning system with improved outlet moisture stability

Abstract

The application relates to a pressure-increasing light-shielding tobacco stem moisture recovery system capable of improving outlet moisture stability, which comprises a spiral conveying module provided with a steam inlet and used for applying high-temperature and high-pressure steam to the internal material to be recovered and conveying the material; a feeding steam lock connected with the input end of the spiral conveying module and used for conveying the material to be recovered to the spiral conveying module while sealing the steam; a discharging steam lock connected with the output end of the spiral conveying module and used for discharging the recovered material from the output end of the discharging steam lock while sealing the steam; a conveying belt in communication with the output end of the discharging steam lock and used for conveying the recovered material; and an infrared moisture meter arranged at one end of the conveying belt close to the discharging steam lock and used for detecting the moisture of the recovered material. The application can realize uniform tobacco stem moisture recovery at one time, reduce steam leakage, reduce moisture fluctuation in the conveying link and improve outlet moisture stability.

Description

Technical Field

[0001] This application relates to the field of tobacco stem processing technology, and in particular to a pressurized, light-shielding tobacco stem rehumidification system for improving the moisture stability at the outlet. Background Technology

[0002] In tobacco processing, rehydration of tobacco stems is a crucial pretreatment step. Its core purpose is to improve the flexibility and processing performance of the stems by adjusting their moisture content and temperature, laying the foundation for subsequent processes such as pressing, shredding, and drying. The moisture stability of the rehydrated tobacco stems directly affects key quality indicators such as the whole-shred rate, broken-shred rate, and filling value, which in turn affect the combustion performance, aroma release, and taste consistency of cigarettes. Therefore, ensuring the uniformity and stability of the moisture content at the exit of the rehydrated tobacco stems is one of the core technical requirements in the tobacco processing industry.

[0003] In existing technologies, conventional tobacco stem rehydration production line systems typically consist of a rehydration machine, a conveyor belt connected to the outlet of the rehydration machine, and an online infrared moisture meter mounted above the conveyor belt. However, in conventional tobacco stem rehydration production line systems, the contact between the material and steam inside the rehydration machine is insufficient, making it difficult to achieve uniform rehydration in all directions. This results in some tobacco stems having a higher moisture content than others, requiring multiple cycles of steaming and stem storage.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] To address the aforementioned issues, this application provides a pressurized, shading tobacco stem rehumidification system that improves outlet moisture stability. This system enables tobacco stems to be rehumidified uniformly in one pass, reducing steam leakage, minimizing moisture fluctuations during transport, and enhancing outlet moisture stability.

[0006] To achieve the objectives of this application, the following technical solution is provided:

[0007] This application provides a pressurized and light-shielding tobacco stem rehumidification system to improve the moisture stability of the outlet, comprising: a spiral conveyor module having a steam inlet for applying high-temperature and high-pressure steam to the material to be rehumidified inside and conveying it;

[0008] The feed steam lock, with its output end connected to the input end of the screw conveyor module, is used to seal the steam while conveying the material to be rehydrated to the screw conveyor module.

[0009] The discharge steam lock has its input end connected to the output end of the screw conveyor module. It is used to seal the steam while outputting the rehydrated material from the output end of the discharge steam lock.

[0010] A conveyor belt, connected to the output end of the discharge air lock, is used to convey the rehydrated material;

[0011] An infrared moisture meter is installed at one end of the conveyor belt near the discharge air lock to detect the moisture content of the material after it has regained moisture.

[0012] A light-shielding element covers the discharge trough and the infrared moisture meter.

[0013] In one possible implementation, the discharge air lock is connected to the conveyor belt via a discharge vibrating trough. One end of the discharge vibrating trough is located below the output end of the discharge air lock, and the other end is connected to the end of the conveyor belt near the discharge air lock, for vibrating and conveying the rehydrated material to the conveyor belt.

[0014] In one possible implementation, the discharge trough has a steam release element above it for releasing steam into the rehydrated material inside the discharge trough.

[0015] In one possible implementation, the feed steam lock includes a steam lock housing, a steam lock rotor, and an air port;

[0016] The gas lock housing has a first cylindrical inner cavity. The gas lock rotor is a cylinder with grooves arranged in an array on its surface. It is rotatably disposed in the first inner cavity and is rotatably and sealingly connected to the first inner cavity. One side of the gas lock housing also has an air port communicating with the first inner cavity.

[0017] In one possible implementation, the portion of the gas lock rotor that contacts the first inner cavity has a sealing strip.

[0018] In one possible implementation, the spiral conveying module includes a conveying housing with a second inner cavity and a propulsion spiral.

[0019] The propulsion screw is rotatably disposed within the second inner cavity;

[0020] The conveying housing has a feed inlet, a discharge outlet and a steam inlet. The feed inlet is located at one end of the conveying housing and the discharge outlet is located at the other end of the conveying housing. The feed inlet is connected to the output end of the feed steam lock and the discharge outlet is connected to the input end of the discharge steam lock. The steam inlet is connected to the second inner cavity and to a high-temperature and high-pressure steam source.

[0021] In one possible implementation, the bottom of the conveying housing has a water-filtering jacket for storing condensed high-temperature steam.

[0022] In one possible implementation, the pressurized, light-shielding tobacco stem rehumidification system for improving outlet moisture stability has a condensate outlet at the bottom of the filter jacket.

[0023] In one possible implementation, the pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability further includes a dehumidification module connected to the air outlet for discharging excess steam.

[0024] In one possible implementation, the pressurized shading tobacco stem rehumidification system for improving outlet moisture stability further includes a steam lock cleaning module, which is internally connected to the feed steam lock and the discharge steam lock, and is used to clean the inside of the feed steam lock and the discharge steam lock by using cleaning lubricating water and high-pressure gas.

[0025] The technical solution provided in this application may include the following beneficial effects:

[0026] The pressurized, light-shielding tobacco stem rehumidification system provided in this application, which improves the stability of outlet moisture content, applies high-temperature, high-pressure steam to the material to be rehumidified through the steam inlet of the screw conveyor module. This ensures that the material is fully in contact with the steam during conveying, achieving uniform rehumidification. Simultaneously, the feed steam lock seals the steam when conveying the material to the screw conveyor module, preventing steam leakage that could lead to insufficient rehumidification pressure and affect the rehumidification effect. Only one rehumidification cycle and temporary storage within the screw conveyor module are needed to achieve the desired rehumidification effect. Furthermore, the discharge steam lock seals the steam while receiving the rehumidified material from the screw conveyor module, working in conjunction with the conveyor belt to stably transport the rehumidified material and reduce moisture fluctuations caused by steam loss or unstable conveying. Additionally, the light-shielding of the discharge vibrating trough and infrared moisture meter prevents abnormal evaporation of material moisture caused by ambient light and avoids affecting the detection accuracy of the infrared moisture meter.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the present application and form part of the specification. They are used together with the embodiments of the present application to explain the application and do not constitute a limitation thereof. Obviously, the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0029] Figure 1 This is a schematic diagram of a pressurized, light-shielding tobacco stem rehumidification system for improving outlet moisture stability, provided in an embodiment of this application.

[0030] Figure 2 This is a schematic diagram of a pressurized, light-shielding tobacco stem rehumidification system for improving outlet moisture stability, provided in an embodiment of this application.

[0031] Figure 3 A schematic diagram of the structure of a spiral conveyor module for a pressurized, light-shielding tobacco stem rehumidification system to improve outlet moisture stability provided in this application embodiment;

[0032] Figure 4 A schematic diagram of the steam lock structure of a pressurized, light-shielding tobacco stem rehumidification system for improving outlet moisture stability is provided in this application embodiment;

[0033] Figure 5 This is a schematic diagram of a pressurized, light-shielding tobacco stem rehumidification system for improving outlet moisture stability, provided in an embodiment of this application.

[0034] Figure 6 This is a schematic diagram of the steam lock rotor of a pressurized, light-shielding tobacco stem rehumidification system for improving outlet moisture stability, provided as an embodiment of this application.

[0035] Figure label:

[0036] 100. Feed steam lock; 110. Steam lock housing; 120. Steam lock rotor; 130. Air port;

[0037] 200, Screw conveyor module; 210, Conveyor housing; 220, Feed inlet; 230, Propulsion screw; 240, Discharge outlet; 250, Steam inlet; 260, Water filter jacket; 270, Condensate outlet.

[0038] 300. Discharge airlock; 400. Discharge vibrating trough; 500. Conveyor belt; 600. Infrared moisture meter; 700. Steam release component; 800. Dehumidification module; 900. Airlock cleaning module. Detailed Implementation

[0039] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0040] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore, repeated descriptions of them will be omitted.

[0041] This example embodiment first provides a pressurized, shading tobacco stem rehumidification system to improve outlet moisture stability. (Reference) Figures 1 to 5As shown, the pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability includes an inlet steam lock 100, a screw conveyor module 200, an outlet steam lock 300, a conveyor belt 500, and an infrared moisture meter 600. Among them:

[0042] The screw conveyor module 200 has a steam inlet 250, which is used to apply high-temperature and high-pressure steam to the material to be rehydrated and to convey it.

[0043] The feed steam lock 100 has its output end connected to the input end of the screw conveyor module 200, and is used to convey the material to be rehydrated to the screw conveyor module 200 while sealing the steam.

[0044] The discharge steam lock 300 has its input end connected to the output end of the screw conveyor module 200, and is used to seal the steam while discharging the rehydrated material from the output end of the discharge steam lock 300.

[0045] The conveyor belt 500 is connected to the output end of the discharge air lock 300 and is used to convey the rehydrated material.

[0046] An infrared moisture meter 600 is installed at one end of the conveyor belt 500 near the discharge air lock 300 to detect the moisture content of the material after it has regained moisture.

[0047] A light-shielding component covers the discharge vibrating trough 400 and the infrared moisture meter 600.

[0048] It should be noted that the light shield covering the discharge trough 400 and the infrared moisture meter 600 can block ambient light in the 800-2500nm wavelength band, which not only prevents the ambient light from causing abnormal evaporation of material moisture, but also avoids it from interfering with the detection accuracy of the infrared moisture meter 600, thus providing stable conditions for moisture detection.

[0049] Through the technical solution of this application, high-temperature and high-pressure steam can be introduced through the steam inlet 250 of the screw conveyor module 200, and the propulsion screw 230 can be used to drive the material to be rehydrated to move smoothly in the conveyor housing 210, so that the material can fully contact the steam to achieve all-round uniform rehydration. At the same time, the water filter jacket 260 at the bottom of the conveyor housing 210 is used to collect steam condensate and discharge it through the condensate outlet 270, avoiding direct contact between condensate and material to prevent local over-moisture. This ensures the uniformity of material moisture distribution from the core of the rehydration process. Steam sealing can be achieved through the sealing strip at the contact point between the steam lock rotor 120 of the feed steam lock 100 and the first inner cavity. With the help of the dehumidification module 800, excess steam in the feed steam lock 100 can be discharged through the air outlet 130. This not only prevents steam leakage in the screw conveyor module 200 from causing insufficient rehydration pressure, but also prevents the material at the feed end from absorbing moisture in advance. At the same time, the discharge steam lock 300 can seal the steam when outputting the rehydrated material, reducing steam loss in the conveying process and maintaining the initial moisture state of the material after rehydration. The system can disperse agglomerated material from the discharge steam lock 300 through the vibration function of the discharge trough 400, ensuring uniform material distribution. Combined with the steam release component 700, which accurately replenishes steam into the discharge trough 400 based on real-time detection data from the infrared moisture meter 600, it compensates for trace moisture loss during material transport. Furthermore, the system can isolate ambient light in the 800-2500nm wavelength band by covering the discharge trough 400 and the infrared moisture meter 600. This avoids the photothermal effect of ambient light on the tobacco stems, preventing uneven moisture evaporation, and reduces thermal noise interference from ambient light on the infrared moisture meter 600 detector, thus lowering the dispersion of detected values. Ultimately, this results in a reduction of the average standard deviation of the tobacco stem re-moistening outlet moisture content by more than 13.1% and a reduction of the standard deviation data dispersion by more than 51.7%. This effectively weakens the correlation between inlet moisture fluctuations and outlet moisture standard deviations, significantly improving the stability and process robustness of the tobacco stem re-moistening outlet moisture content, and solving the moisture fluctuation problems caused by steam leakage, material agglomeration, and ambient light interference in existing technologies.

[0050] In one possible implementation, the discharge air lock 300 is connected to the conveyor belt 500 via a discharge vibration trough 400. One end of the discharge vibration trough 400 is located below the output end of the discharge air lock 300, and the other end is connected to the end of the conveyor belt 500 near the discharge air lock 300, for vibrating and conveying the rehydrated material to the conveyor belt 500.

[0051] It should be noted that after the rehydrated material output from the discharge air lock 300 enters the discharge vibrating trough 400, the vibration function of the trough can completely break up the clumps of material, making the material evenly distributed.

[0052] In one possible implementation, the discharge vibrating trough 400 has a steam release member 700 above it for releasing steam into the rehydrated material inside the discharge vibrating trough 400.

[0053] It should be noted that the steam release component 700 is installed on the conveying path of the discharge vibrating trough 400, and its steam release volume can be adjusted according to the real-time detection data of the infrared moisture meter 600. When the material moisture is detected to be lower than the set value, the steam release component 700 increases the steam output to compensate for the moisture loss caused by environmental factors during the material conveying process. When the moisture reaches the standard, the release is reduced or stopped. This precise compensation further reduces the range of material moisture fluctuations and helps to achieve stable outlet moisture.

[0054] In one possible implementation, the feed steam lock 100 includes a steam lock housing 110, a steam lock rotor 120, and an air port 130;

[0055] The gas lock housing 110 has a cylindrical first inner cavity. The gas lock rotor 120 is a cylinder with grooves arranged in an array on its surface. It is rotatably disposed in the first inner cavity and is rotatably and sealingly connected to the first inner cavity. One side of the gas lock housing 110 also has an air port 130 that communicates with the first inner cavity.

[0056] Optionally, the portion of the gas lock rotor 120 that contacts the first inner cavity has a sealing strip.

[0057] It should be noted that the grooves arrayed on the surface of the steam lock rotor 120 of the feed steam lock 100 can accurately receive and rehydrated tobacco stems and stably convey them to the feed inlet 220 of the screw conveyor module 200 as the rotor rotates, thus achieving continuous feeding of materials. Meanwhile, the sealing strip at the contact point between the steam lock rotor 120 and the first inner cavity can specifically prevent the leakage of high-temperature, high-pressure steam introduced from the steam inlet 250 into the screw conveyor module 200. Simultaneously, it cooperates with the dehumidification module 800 connected to the steam lock housing 110 to promptly discharge excess steam accumulated inside the feed steam lock 100, preventing excessive internal pressure from affecting material conveying and preventing steam from reversing into the feed end and causing premature moisture absorption by the material.

[0058] It is understood that the discharge steam lock 300 has the same structure as the feed steam lock 100.

[0059] In one possible implementation, the spiral conveying module 200 includes a conveying housing 210 with a second inner cavity and a propulsion spiral 230;

[0060] The propulsion screw 230 is rotatably disposed in the second inner cavity;

[0061] The conveying housing 210 has a feed inlet 220, a discharge outlet 240 and a steam inlet 250. The feed inlet 220 is located at one end of the conveying housing 210, and the discharge outlet 240 is located at the other end of the conveying housing 210. The feed inlet 220 is connected to the output end of the feed steam lock 100, and the discharge outlet 240 is connected to the input end of the discharge steam lock 300. The steam inlet 250 is connected to the second inner cavity and to a high-temperature and high-pressure steam source.

[0062] It should be noted that within the conveying housing 210 of the screw conveyor module 200, the rotation of the propulsion screw 230 can drive the material to move axially from the feed inlet 220 to the discharge outlet 240. During this process, the material can fully contact the high-temperature and high-pressure steam introduced through the steam inlet 250 to achieve uniform rehydration.

[0063] Furthermore, the bottom of the conveying housing 210 has a water filter jacket 260 for storing condensed high-temperature steam.

[0064] It should be noted that the water filter jacket 260 at the bottom of the conveying housing 210 can specifically collect the water generated by steam condensation.

[0065] Optionally, the bottom of the filter jacket 260 has a condensate outlet 270.

[0066] It should be noted that the condensate is discharged through the condensate outlet 270 at the bottom, effectively preventing the condensate from coming into direct contact with the material and causing localized excessive moisture.

[0067] In one possible implementation, the pressurized shading tobacco stem rehumidification system for improving outlet moisture stability further includes a dehumidification module 800 connected to the air outlet 130 for discharging excess steam.

[0068] It should be noted that, optionally, the dehumidification module 800 can adjust the exhaust rate via an electromagnetic proportional valve. Its core function is to maintain the pressure difference between the feed airlock 100 and the screw conveyor module 200 within a reasonable range, preventing sudden pressure changes from interfering with the rehumidification process. This ensures both the sealing effect of the feed airlock 100 and smooth material conveying, providing support for a stable high-temperature and high-pressure environment within the screw conveyor module 200.

[0069] In one possible implementation, the pressurized shading tobacco stem rehumidification system for improving outlet moisture stability further includes a steam lock cleaning module 900, which is internally connected to the feed steam lock 100 and the discharge steam lock 300, and is used to clean the interior of the feed steam lock 100 and the discharge steam lock 300 by using cleaning lubricating water and high-pressure gas.

[0070] It should be noted that the cleaning lubricating water and high-pressure gas of the air lock cleaning module 900 work together to thoroughly clean the interior of the feed air lock 100 and the discharge air lock 300. The high-pressure gas can impact and remove the tobacco residue attached to the grooves of the air lock rotor and the inner wall of the housing, while the cleaning lubricating water can further flush away the accumulated dirt and form a lubricating layer, preventing the residual material from clumping and becoming moldy at high temperatures, while reducing component wear and ensuring the sealing performance and rotational flexibility of the air lock.

[0071] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0073] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0074] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0075] In the description of this specification, references to terms such as "one possible implementation," "further," "exemplary," "specific example," or "optional," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0076] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of this application. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not claimed in this application. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.

Claims

1. A pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability, characterized in that, include: The screw conveyor module has a steam inlet, which is used to apply high-temperature and high-pressure steam to the materials inside for rehydration and conveying. The feed steam lock, with its output end connected to the input end of the screw conveyor module, is used to seal the steam while conveying the material to be rehydrated to the screw conveyor module. The discharge steam lock has its input end connected to the output end of the screw conveyor module. It is used to seal the steam while outputting the rehydrated material from the output end of the discharge steam lock. A conveyor belt, connected to the output end of the discharge air lock, is used to convey the rehydrated material; An infrared moisture meter is installed at one end of the conveyor belt near the discharge air lock to detect the moisture content of the material after it has regained moisture. A light-shielding element covers the discharge trough and the infrared moisture meter.

2. The pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability according to claim 1, characterized in that, The discharge air lock is connected to the conveyor belt via a discharge vibrating trough. One end of the discharge vibrating trough is located below the output end of the discharge air lock, and the other end is connected to the end of the conveyor belt near the discharge air lock. It is used to vibrate and transport the rehydrated material to the conveyor belt.

3. The pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability according to claim 2, characterized in that, The discharge vibrating trough is equipped with a steam release device above it, which is used to release steam into the rehydrated material in the discharge vibrating trough.

4. The pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability according to claim 1, characterized in that, The feed steam lock includes a steam lock housing, a steam lock rotor, and an air port; The gas lock housing has a first cylindrical inner cavity. The gas lock rotor is a cylinder with grooves arranged in an array on its surface. It is rotatably disposed in the first inner cavity and is rotatably and sealingly connected to the first inner cavity. One side of the gas lock housing also has an air port communicating with the first inner cavity.

5. The pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability according to claim 4, characterized in that, The portion of the gas lock rotor that contacts the first inner cavity has a sealing strip.

6. The pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability according to claim 1, characterized in that, The spiral conveying module includes a conveying housing with a second inner cavity and a propulsion spiral component; The propulsion screw is rotatably disposed within the second inner cavity; The conveying housing has a feed inlet, a discharge outlet and a steam inlet. The feed inlet is located at one end of the conveying housing and the discharge outlet is located at the other end of the conveying housing. The feed inlet is connected to the output end of the feed steam lock and the discharge outlet is connected to the input end of the discharge steam lock. The steam inlet is connected to the second inner cavity and to a high-temperature and high-pressure steam source.

7. The pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability according to claim 6, characterized in that, The bottom of the conveying housing has a water filter jacket for storing condensed high-temperature steam.

8. The pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability according to claim 7, characterized in that, The bottom of the filter jacket has a condensate outlet.

9. The pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability according to claim 4, characterized in that, It also includes a dehumidification module, which is connected to the air vent and is used to discharge excess steam.

10. The pressurized, shading tobacco stem rehumidification system for improving outlet moisture stability according to claim 1, characterized in that, It also includes a steam lock cleaning module, which is connected to the inside of the feed steam lock and the discharge steam lock, and is used to clean the inside of the feed steam lock and the discharge steam lock by using cleaning lubricating water and high-pressure gas.

Images