Tobacco leaf production apparatus

Abstract

The utility model relates to the field of tobacco production technology, especially a kind of tobacco production equipment.It is provided by the utility model, and the tobacco production equipment includes roller, liquid accumulator, moisture removal component and return air component, and the inside of roller has chamber, and one end of roller is provided with feed slot, and the other end is provided with discharge slot, and feed slot and discharge slot are all communicated with chamber;Liquid accumulator is communicated with chamber, and can spray liquid to chamber;Moisture removal component one end is located at discharge slot, and the other end is communicated with external environment;Two ends of return air component are respectively communicated with two ends of chamber, and detection unit is arranged in moisture removal component and return air component, and detection unit can detect the content of liquid in installation position.It is characterized in that, by setting detection unit in moisture removal component and return air component communicated with charging roller, the amount of liquid lost with airflow in production process is monitored in real time, so as to calculate actual application amount, thereby improving tobacco quality.

Description

Technical Field

[0001] This utility model relates to the field of tobacco production technology, and in particular to a tobacco leaf production equipment. Background Technology

[0002] Adding additives to tobacco leaves is a crucial step in cigarette production. By adding specific additives to tobacco leaves, the quality of the leaves can be significantly improved, such as enhancing aroma, enriching taste, and reducing irritation, playing a decisive role in the final quality of cigarette products. Therefore, accurately detecting the actual amount of tobacco additives added is essential for ensuring stable cigarette quality and achieving precise control over the production process.

[0003] In existing tobacco processing, despite the adoption of relatively advanced feeding equipment and control technologies, a certain deviation may still exist between the actual amount added and the theoretically set value. This deviation is mainly because some of the liquid feed remains in the air after atomization and is then drawn away by the return air circulation or exhaust air, affecting cigarette quality. Currently, it is difficult for the industry to measure the aforementioned lost liquid feed, thus making it impossible to calculate the actual amount of liquid feed added. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a tobacco leaf production equipment.

[0005] A tobacco leaf production device includes: a drum with an internal chamber, a feed chute at one end of the drum and a discharge chute at the other end, both of which are connected to the chamber; a liquid reservoir connected to the chamber and capable of spraying liquid into the chamber; a dehumidification assembly, one end of which is located at the discharge chute and the other end of which is connected to the external environment; and a return air assembly, one end of which is connected to the side of the chamber near the discharge chute and the other end of which is connected to the side of the chamber near the feed chute. Both the dehumidification assembly and the return air assembly are equipped with a detection unit capable of detecting the liquid content at their respective installation locations.

[0006] In this configuration, tobacco leaves enter the chamber through the feed chute and are rolled within the drum. The liquid to be mixed with the tobacco leaves is sprayed into the chamber through a liquid reservoir, thus mixing with the leaves. A dehumidification assembly removes any released moisture, while a return air assembly circulates air within the drum chamber. By installing detection units on the key airflow channels connected to the feeding drum—namely, the dehumidification and return air assemblies—these units can measure the amount of liquid lost in both components. This allows for direct detection of liquid lost during production, providing crucial data for accurately calculating the actual amount of liquid added to the tobacco leaves and solving the long-standing technical problem of discrepancies between the theoretical and actual added amounts.

[0007] In one embodiment, the detection unit includes a sampling pipe, a driving component, and a detection component. The sampling pipe is used to communicate with the dehumidification component or the return air component. The driving component is installed in the sampling pipe and can drive the airflow in the sampling pipe. The detection component is installed in the sampling pipe and can obtain the liquid content in the sampling pipe.

[0008] In one embodiment, the sampling conduit includes an inner layer and an insulation layer, the insulation layer being fitted over the outer periphery of the inner layer.

[0009] In one embodiment, the driving element is configured as a diaphragm pump, and the detection element is configured as a near-infrared detector.

[0010] In one embodiment, the dehumidification assembly includes a cover, a dehumidification pipe, and a first fan. The cover is connected to the dehumidification pipe, the first fan is installed in the dehumidification pipe, and the detection unit is provided and connected to the dehumidification pipe.

[0011] In one embodiment, the cover is positioned above the discharge trough, and the diameter of the cover gradually increases in the direction away from the dehumidification pipe.

[0012] In one embodiment, the return air assembly includes a return air duct, a second fan, and an anemometer. The two ends of the return air duct are respectively connected to the two sides of the chamber along the axial direction. The second fan and the anemometer are both installed inside the return air duct. The detection unit is provided and connected to the return air duct.

[0013] In one embodiment, the reservoir is connected to a nozzle that extends into the chamber, and the tobacco production equipment further includes an air compressor connected to an ejector pipe that is positioned close to the nozzle.

[0014] In one embodiment, the tobacco production equipment further includes a frame, a motor, a reducer, and a rotating shaft. The drum is rotatably connected to the frame, the motor is mounted on the frame and connected to the reducer, the reducer is connected to the rotating shaft, and a driven gear is provided on the outer periphery of the drum. The rotating shaft meshes with the driven gear.

[0015] In one embodiment, the sidewall of the roller has a sandwich structure.

[0016] Compared with existing technologies, this invention sets up detection units in the dehumidification and return air components connected to the feeding drum to monitor the amount of liquid material lost with the airflow during production in real time. Combined with the application amount measured by the flow meter, the actual amount of liquid material added to the tobacco leaves can be accurately calculated, which effectively solves the problem of deviation between the theoretical addition amount and the actual addition amount, and significantly improves the quality stability, process control accuracy and product quality of tobacco leaf production. Attached Figure Description

[0017] Figure 1 A schematic diagram of one embodiment of the tobacco leaf production equipment provided by this utility model.

[0018] The symbols in the diagram represent the following meanings:

[0019] 100. Tobacco leaf production equipment; 10. Drum; 11. Chamber; 12. Feed chute; 13. Discharge chute; 14. Driven gear; 15. Jacket; 20. Liquid reservoir; 21. Nozzle; 22. Flow meter; 23. Solenoid valve; 30. Dehumidification assembly; 31. Cover; 32. Dehumidification pipeline; 33. First fan; 40. Return air assembly; 41. Return air pipeline; 42. Second fan; 43. Anemometer; 50. Detection unit; 51. Sampling pipeline; 511. Inner layer; 512. Insulation layer; 52. Drive component; 53. Detection component; 60. Air compressor; 61. Ejector pipeline; 70. Frame; 71. Motor; 72. Reducer; 73. Shaft. Detailed Implementation

[0020] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0021] It should be noted that when a mechanism is referred to as being "fixed to" or "set on" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected to" another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0022] 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 at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is 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 can mean that the first feature is 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.

[0024] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0025] This utility model provides a tobacco leaf production equipment 100, which realizes the detection of material liquid loss during the production process by setting detection units 50 on the dehumidification and return air paths respectively, thereby enabling accurate calculation of the actual amount of additives adhering to the tobacco leaves, which helps to improve the quality of tobacco leaf manufacturing.

[0026] Please see Figure 1The tobacco production equipment 100 includes a drum 10, a liquid storage tank 20, a dehumidification component 30, and a return air component 40. The drum 10 has a chamber 11 inside. One end of the drum 10 is provided with a feed chute 12, and the other end is provided with a discharge chute 13. Both the feed chute 12 and the discharge chute 13 are connected to the chamber 11. The liquid storage tank 20 is connected to the chamber 11 and can spray liquid into the chamber 11. One end of the dehumidification component 30 is located at the discharge chute 13, and the other end is connected to the external environment. One end of the return air component 40 is connected to the side of the chamber 11 near the discharge chute 13, and the other end of the return air component 40 is connected to the end of the chamber 11 near the feed chute 12. Both the dehumidification component 30 and the return air component 40 are provided with a detection unit 50, which can detect the content of liquid at the installation position. Thus, the tobacco leaves enter the chamber 11 through the feed chute 12 and are rolled inside the drum 10. The liquid material to be mixed with the tobacco leaves is sprayed into the chamber 11 through the liquid reservoir 20, thereby mixing with the tobacco leaves. The dehumidification component 30 is used to absorb the released moisture, and the return air component 40 is used for air circulation in the chamber 11 inside the drum 10.

[0027] By setting a detection unit 50 on the key airflow channels connected to the feeding roller 10, namely the dehumidification component 30 and the return air component 40, the detection unit 50 can obtain the amount of liquid lost in the dehumidification component 30 and the amount of liquid lost in the return air component 40. This enables direct detection of the liquid lost with the airflow during the production process, providing key data for accurately calculating the actual amount of liquid added to the tobacco leaves and solving the long-standing technical problem of discrepancies between the "theoretical addition amount" and the "actual addition amount".

[0028] Specifically, the detection unit 50 includes a sampling pipe 51, a driving component 52, and a detection component 53. The sampling pipe 51 is used to communicate with the dehumidification component 30 or the return air component 40. The driving component 52 is installed in the sampling pipe 51 and can drive the airflow within the sampling pipe 51. The detection component 53 is installed in the sampling pipe 51 and can obtain the liquid content within the sampling pipe 51. Thus, the sampling pipe 51 serves as a gas transmission channel, responsible for extracting samples from the dehumidification component 30; the driving component 52 provides stable suction power to ensure that the sample continuously flows to the detection site; and the detection component 53 performs real-time analysis of the sample gas and quantitatively determines the liquid concentration.

[0029] Furthermore, the sampling pipe 51 includes an inner layer 511 and an insulation layer 512, with the insulation layer 512 fitted over the outer periphery of the inner layer 511. Thus, by providing a double-layered sampling pipe 51, where the inner layer 511 maintains gas flow and the insulation layer 512 prevents condensation of high-temperature gas during transport due to temperature drop, the reliability of the test data is ensured.

[0030] For example, the drive unit 52 is configured as a diaphragm pump, and the detection unit 53 is configured as a near-infrared detector. Thus, the diaphragm pump, as the drive unit 52, provides a stable flow rate, ensuring the stability of the sample flow. The near-infrared detector, as the detection unit 53, selects one or more substances from the sugar mixture and calculates their concentration based on their absorption wavelengths in the near-infrared region at different concentrations, thereby achieving rapid and accurate quantification of the liquid composition. This combination ensures that the entire detection system is both reliable and accurate.

[0031] The dehumidification assembly 30 includes a cover 31, a dehumidification pipe 32, and a first fan 33. The cover 31 is connected to the dehumidification pipe 32, and the first fan 33 is installed in the dehumidification pipe 32. A detection unit 50 is installed and connected to the dehumidification pipe 32. Thus, the cover 31 is responsible for effectively collecting the liquid-containing gas escaping from the discharge trough 13, the dehumidification pipe 32 provides a gas discharge channel, the first fan 33 generates the necessary negative pressure suction force, and the integrated detection unit 50 is specifically used for quantitative analysis of the amount of liquid loss in the final discharge.

[0032] Furthermore, the cover 31 is installed on the upper side of the discharge trough 13, and the diameter of the cover 31 gradually increases in the direction away from the dehumidification pipe 32. In this way, by designing the cover 31 as a gradually expanding structure, the gas capture area is significantly increased, and the collection efficiency of hot and humid gas rising from the discharge trough 13 is improved.

[0033] The return air assembly 40 includes a return air duct 41, a second fan 42, and an anemometer 43. The two ends of the return air duct 41 are connected to the two sides of the chamber 11 along its axial direction. Both the second fan 42 and the anemometer 43 are installed inside the return air duct 41. A detection unit 50 is installed and connected to the return air duct 41. Thus, the return air duct 41 establishes a circulating air channel, the second fan 42 maintains the circulating airflow, the anemometer 43 measures the airflow parameters in real time, and the integrated detection unit 50 is specifically used to analyze the concentration of the liquid carried in the circulating air. This structure enables accurate monitoring of the amount of liquid loss during circulation within the system.

[0034] The liquid reservoir 20 is connected to a nozzle 21, which extends into the chamber 11. The tobacco production equipment 100 also includes an air compressor 60, which is connected to an ejector pipe 61 located near the nozzle 21. Thus, by configuring the air compressor 60 and the ejector pipe 61, an air source is provided for the atomization of the liquid feed. The air compressor 60 generates high-pressure gas, which is guided by the ejector pipe 61 to the nozzle 21, where it mixes with the liquid feed to achieve efficient atomization. This improves the uniformity of feed distribution.

[0035] A flow meter 22 is also installed in the pipeline between the reservoir 20 and the nozzle 21. The flow meter 22 can detect the amount of liquid added by the reservoir 20 into the chamber 11, and a solenoid valve 23 is installed to control the opening and closing of the pipeline.

[0036] Preferably, both the return air assembly 40 and the dehumidification assembly 30 are equipped with a wind speed detector 43.

[0037] The tobacco production equipment 100 also includes a frame 70, a motor 71, a reducer 72, and a rotating shaft 73. The drum 10 is rotatably connected to the frame 70. The motor 71 is mounted on the frame 70 and connected to the reducer 72. The reducer 72 is connected to the rotating shaft 73. A driven gear 14 is provided on the outer periphery of the drum 10, and the rotating shaft 73 meshes with the driven gear 14. Thus, the motor 71 provides the initial power, the reducer 72 adjusts the output speed and torque, the rotating shaft 73 transmits the power, and the gear meshing transmits the rotational motion to the drum 10. This system ensures that the drum 10 operates smoothly at a suitable speed, allowing the tobacco leaves and slurry to mix thoroughly.

[0038] In this embodiment, the driven gear 14 is arranged around the outer periphery of the roller 10. The sidewall of the roller 10 has a sandwich 15 to achieve better insulation of the environment inside the chamber 11.

[0039] This utility model also provides a tobacco leaf production method, including the tobacco leaf production equipment 100 as described above, with a flow meter 22 provided between the liquid storage tank 20 and the drum 10. The tobacco leaf production method includes: obtaining the amount of liquid applied Q1 through the flow meter 22; obtaining the amount of liquid lost Q2 by the dehumidification component 30 and the return air component 40 through the detection unit 50; and calculating the actual amount added to the tobacco leaf based on Q1 and Q2.

[0040] Taking the liquid material as a sugar additive as an example, this tobacco production method is explained in detail. In this embodiment, the detection element 53 is a portable near-infrared detector, which quantitatively detects the sugar and moisture content in the pipeline and calculates the actual amount of sugar additive applied to the tobacco leaves. It is simple, fast, and accurate, filling the gap in the determination of the actual amount of sugar additive. The device has a simple structure and is suitable for industrial applications.

[0041] This method and apparatus are applicable not only to the calculation of sugars but also to the calculation of flavorings, and not only to tobacco leaves but also to the calculation of the actual amount of flavorings added to tobacco stems.

[0042] The formula for calculating the air volume of return air ducts is Q. 回风 =V 回风 ×S 回风管道截面积； The formula for calculating the air volume of exhaust ducts is Q. 排潮 =V 排潮 ×S 排潮管道截面积 .

[0043] The sugar content in the return air duct and exhaust duct is measured using a near-infrared detector. By selecting one or more substances in the sugar content, the concentration is calculated based on their absorption wavelength in the near-infrared at different concentrations.

[0044] Because portable, small-volume near-infrared detectors are used on-site, they need to be calibrated periodically with sugar standard samples of different concentrations to ensure accurate measurements. The measured sugar concentration in the return air duct is labeled as c. 回风 The sugar concentration in the drainage pipe is marked as c. 排潮 .

[0045] The amount of sugar entering chamber 11, i.e., the amount of liquid applied, is recorded by mass flow meter 22. The formula for calculating the amount of sugar in the return air duct is c. 回风 ×Q 回风 ×L 回风 / V 回风 Among them, L 回风 This indicates the length of the return air duct. The formula for calculating the amount of sugar removed from the exhaust duct is c. 排潮 ×Q 排潮 ×T. Where T represents the time for dehumidification and extraction. Generally, sampling can be performed every 5-10 minutes to calculate the cumulative amount over the entire extraction cycle. The sum of the sugar loss in the return air duct and the dehumidification duct is Q2 as mentioned above.

[0046] This method can also determine the amount of sugar added at different intervals. However, it's necessary to consider the time delay between the sugar application time and the time lag in the exhaust and return air ducts. This is because it takes a certain amount of time for the sugar to be transported through these ducts, and this delay is calculated and measured based on different process parameters and equipment characteristics. The amount of sugar added at this interval is the difference between the amount applied measured by the sugar mass flow meter 22 and the amount of sugar absorbed by the exhaust duct and measured in the return air duct during this period. The influence of the time delay factor needs to be considered.

[0047] Compared with the prior art, this utility model sets up a detection unit 50 in the dehumidification component 30 and the return air component 40 connected to the feeding roller 10 to monitor the amount of liquid material lost by the airflow during the production process in real time. Combined with the application amount measured by the flow meter 22, the actual amount of liquid material added to the tobacco leaves can be accurately calculated, which effectively solves the problem of deviation between the theoretical addition amount and the actual addition amount, and significantly improves the quality stability, process control accuracy and product quality of tobacco leaf production.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A tobacco leaf production equipment, characterized in that, include: A roller (10) has a cavity (11) inside. One end of the roller (10) is provided with a feed chute (12) and the other end is provided with a discharge chute (13). The feed chute (12) and the discharge chute (13) are both connected to the cavity (11). The reservoir (20) is connected to the chamber (11) and is capable of spraying liquid into the chamber (11); The dehumidification component (30) has one end located at the discharge trough (13) and the other end connected to the external environment; The return air assembly (40) has one end connected to the side of the chamber (11) near the discharge chute (13), and the other end of the return air assembly (40) is connected to the side of the chamber (11) near the feed chute (12). Both the dehumidification assembly (30) and the return air assembly (40) are equipped with a detection unit (50), which can detect the content of the liquid at the installation location.

2. The tobacco leaf production equipment according to claim 1, characterized in that, The detection unit (50) includes a sampling pipe (51), a driving component (52), and a detection component (53). The sampling pipe (51) is used to communicate with the dehumidification component (30) or the return air component (40). The driving component (52) is installed on the sampling pipe (51) and can drive the air flow in the sampling pipe (51). The detection component (53) is installed on the sampling pipe (51) and can obtain the liquid content in the sampling pipe (51).

3. The tobacco leaf production equipment according to claim 2, characterized in that, The sampling pipe (51) includes an inner layer (511) and an insulation layer (512), with the insulation layer (512) sleeved on the outer periphery of the inner layer (511).

4. The tobacco leaf production equipment according to claim 2, characterized in that, The driving component (52) is configured as a diaphragm pump, and the detection component (53) is configured as a near-infrared detector.

5. The tobacco leaf production equipment according to claim 1, characterized in that, The dehumidification assembly (30) includes a cover (31), a dehumidification pipe (32), and a first fan (33). The cover (31) is connected to the dehumidification pipe (32), the first fan (33) is installed in the dehumidification pipe (32), and the detection unit (50) is provided and connected to the dehumidification pipe (32).

6. The tobacco leaf production equipment according to claim 5, characterized in that, The cover (31) is placed on the upper side of the discharge trough (13), and the diameter of the cover (31) gradually increases along the direction away from the dehumidification pipe (32).

7. The tobacco leaf production equipment according to claim 1, characterized in that, The return air assembly (40) includes a return air duct (41), a second fan (42), and an anemometer (43). The two ends of the return air duct (41) are respectively connected to the two sides of the chamber (11) in the axial direction. The second fan (42) and the anemometer (43) are both installed in the return air duct (41). The detection unit (50) is provided and connected to the return air duct (41).

8. The tobacco leaf production equipment according to claim 1, characterized in that, The liquid reservoir (20) is connected to a nozzle (21), which extends into the chamber (11). The tobacco production equipment also includes an air compressor (60), which is connected to an ejector pipe (61) which is located near the nozzle (21).

9. The tobacco leaf production equipment according to claim 1, characterized in that, The tobacco production equipment also includes a frame (70), a motor (71), a reducer (72), and a rotating shaft (73). The drum (10) is rotatably connected to the frame (70). The motor (71) is installed on the frame (70) and connected to the reducer (72). The reducer (72) is connected to the rotating shaft (73). A driven gear (14) is provided on the outer periphery of the drum (10). The rotating shaft (73) meshes with the driven gear (14).

10. The tobacco leaf production equipment according to claim 1, characterized in that, The sidewall of the roller (10) has a sandwich (15).

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