Device for collecting temperature and humidity in cut tobacco drying cylinder

By installing bearing rods and temperature and humidity sensors inside the tobacco drying drum, the accuracy problem of temperature and humidity monitoring inside the drum is solved, real-time data support for the tobacco drying process is achieved, and product quality is improved.

CN223389220UActive Publication Date: 2025-09-26CHINA TOBACCO HUNAN IND CORP
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Patent Information

Application Number
CN202422905926.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-09-26
Estimated Expiration
2034-11-27

AI Technical Summary

Technical Problem

Existing technologies are unable to accurately monitor the temperature and humidity inside the tobacco drying drum, resulting in an inability to fine-tune the tobacco drying process, affecting product quality.

Method used

A temperature and humidity collection device for the wire drying drum is designed, which includes a bearing rod, a temperature and humidity sensor, and an electric control box. The device is connected to the wire drying drum through bearings. The sensor monitors the internal temperature and humidity in real time, and the data is transmitted to the external electric control box for processing through a signal line.

Benefits of technology

It realizes real-time monitoring of the temperature and humidity inside the tobacco drying drum, provides real-time data support, helps to fine-tune the tobacco drying process and improve product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a device for collecting temperature and humidity in a cut tobacco drying cylinder, and relates to the technical field of cut tobacco drying cylinders. The temperature and humidity acquisition device in the cut tobacco drying cylinder comprises a bearing rod, a temperature and humidity sensor and an electric cabinet. The bearing rod is arranged in the cut tobacco drying cylinder in the axial direction of the cut tobacco drying cylinder and comprises a first end and a second end, the first end is connected with the end face of the cut tobacco drying cylinder through a bearing, and the second end penetrates through the other end face of the cut tobacco drying cylinder, extends to the outside and is fixed through a locking piece; the temperature and humidity sensor is installed on the bearing rod and used for monitoring the temperature and humidity in the cut tobacco drying cylinder. The electric control box is arranged outside the cut tobacco drying cylinder, is in communication connection with the temperature and humidity sensor through a signal line, and is used for receiving temperature and humidity data monitored by the temperature and humidity sensor, so that the temperature and humidity in the cut tobacco drying cylinder are monitored in real time, and the change of the state of cut tobacco can be effectively tracked; real-time data support is provided for adjustment of the tobacco shred drying process, and then the product quality is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of silk drying drums, in particular to a temperature and humidity collection device in a silk drying drum. Background Art

[0002] The tobacco drying drum is a key piece of equipment in tobacco processing, primarily used to dry cut tobacco to an optimal moisture content. During the drying process, the temperature and humidity inside the drum are typically high, and the environment is relatively closed. This, combined with dynamic factors such as the drum's rotation, makes monitoring changes in the tobacco's state very difficult.

[0003] Currently, due to the complexity of the drying drum's internal environment and signal interference, existing technology can only infer the actual conditions inside the drum by measuring the temperature and humidity at the inlet and outlet. The limitations of this method make it impossible to accurately grasp the actual changes in temperature and humidity inside the drum, thus hindering the precise adjustment of the tobacco drying process.

[0004] Therefore, there is an urgent need for a collection device that can monitor the temperature and humidity inside the tobacco drying drum, so as to more accurately understand the changes in the state of tobacco during the drying process. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a temperature and humidity collection device in a wire drying drum.

[0006] The technical solutions provided by this utility model are as follows:

[0007] A device for collecting temperature and humidity in a wire drying drum, comprising:

[0008] A bearing rod is arranged inside the drying drum along the axial direction of the drying drum, and includes a first end and a second end. The first end is connected to the end face of the drying drum through a bearing, and the second end passes through the other end face of the drying drum and extends to the outside, and is fixed by a locking member.

[0009] A temperature and humidity sensor is mounted on the bearing rod and is used to monitor the temperature and humidity inside the drying drum;

[0010] The electric control box is arranged outside the silk drying drum and is communicatively connected to the temperature and humidity sensor via a signal line, and is used for receiving temperature and humidity data monitored by the temperature and humidity sensor.

[0011] Furthermore, the silk drying drum includes a drum body, a feed end cover and a discharge end cover provided at opposite ends of the drum body, and a protective cover provided at the position of the feed end cover;

[0012] The first end is connected to the discharge end cover through the bearing, and the second end passes through the feed end cover and extends to the outside of the protective cover and is fixed by the locking member.

[0013] Furthermore, the bearing is a core-aligning bearing, the first end is connected to the inner ring of the core-aligning bearing, and the discharge end cover is connected to the outer ring of the core-aligning bearing;

[0014] And / or, a connecting piece is provided on the discharge end cover, and the connecting piece is used to connect to the rotating piece.

[0015] Furthermore, a avoidance hole is provided on the feed end cover, and the second end passes through the avoidance hole.

[0016] Furthermore, the bearing rod is a hollow structure, the signal line is arranged in the bearing rod, and extends through the second end along the axial direction of the bearing rod to the outside of the silk drying cylinder.

[0017] Furthermore, the signal line is arranged outside the bearing rod, and extends through the avoidance hole along the axial direction of the bearing rod to the outside of the wire drying cylinder.

[0018] Furthermore, the locking member includes:

[0019] A fixed bracket is arranged on a side of the protective cover away from the feed end cover;

[0020] A connecting bolt is connected between the fixing bracket and the second end.

[0021] Furthermore, the number of the temperature and humidity sensors is five, and the five temperature and humidity sensors are arranged on the bearing rod at equal intervals.

[0022] Furthermore, reinforcing ribs are provided below the bearing rod.

[0023] Furthermore, the temperature and humidity sensor is mounted on the bearing bar via a connecting assembly, and the connecting assembly includes:

[0024] A clamp, welded on the circumference of the bearing rod;

[0025] A connecting plate, welded to the clamp;

[0026] A connecting hole is provided on the connecting plate and is used for installing the temperature and humidity sensor.

[0027] Compared with the prior art, the temperature and humidity collection device for a fiber drying drum provided by the present invention has at least the following technical effects:

[0028] The temperature and humidity collection device inside the drying drum consists of a support rod, a temperature and humidity sensor, and an electronic control box. The support rod is positioned axially within the drying drum and consists of a first end and a second end. The first end is connected to the end face of the drying drum via a bearing, while the second end extends through the other end face of the drying drum and is secured by a locking member. The temperature and humidity sensor is mounted on the support rod to monitor the temperature and humidity inside the drying drum. The electronic control box is located outside the drying drum and communicates with the temperature and humidity sensor via a signal line to receive temperature and humidity data from the sensor. This design enables real-time monitoring of the temperature and humidity inside the drying drum, effectively tracking changes in the tobacco state and providing real-time data support for adjustments to the tobacco drying process, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a schematic diagram of the structure of a temperature and humidity collection device in a silk drying drum in one embodiment of the present invention;

[0031] Figure 2 for Figure 1 A partial enlarged schematic diagram of point A in the middle;

[0032] Figure 3 for Figure 1 A partial enlarged schematic diagram of point B in the middle;

[0033] Figure 4 for Figure 1 A partial enlarged schematic diagram of point C in the middle;

[0034] Figure 5 for Figure 1 A local enlarged schematic diagram of point D in the middle.

[0035] Reference numerals:

[0036] 10. Load-bearing rod; 11. First end; 12. Second end; 20. Silk drying cylinder; 21. Cylinder body; 22. Feed end cover; 221. Avoidance hole; 23. Discharge end cover; 231. Connector; 24. Protective cover; 30. Bearing; 40. Locking piece; 41. Fixed bracket; 50. Temperature and humidity sensor; 60. Electric control box; 70. Signal line; 80. Reinforcement rib; 91. Hoop; 92. Connecting plate; 93. Connecting hole. DETAILED DESCRIPTION

[0037] In order to help those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0038] It should be noted that when an element is referred to as being “fixed on” or “set on” another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] 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 being referred to. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0041] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in this utility model without affecting the effects and purposes that can be achieved by the present utility model.

[0042] Please refer to the attached Figure 1 To the attached Figure 5As shown, one embodiment of the present invention provides a device for collecting temperature and humidity inside a wire drying drum, comprising a support rod 10, a temperature and humidity sensor 50, and an electrical control box 60. The support rod 10 is disposed within the wire drying drum 20 along its axial direction and comprises a first end 11 and a second end 12. The first end 11 is connected to the end face of the wire drying drum 20 via a bearing 30, while the second end 12 passes through the other end face of the wire drying drum 20 and extends to the outside, where it is secured by a locking member 40. The temperature and humidity sensor 50 is mounted on the support rod 10 and is used to monitor the temperature and humidity inside the wire drying drum 20. The electrical control box 60 is disposed outside the wire drying drum 20 and is in communication with the temperature and humidity sensor 50 via a signal line 70, for receiving temperature and humidity data monitored by the temperature and humidity sensor 50. The temperature and humidity sensor 50 inside the drying drum 20 and the electrical control box 60 outside the drum 20 work together to monitor the temperature and humidity inside the drum 20, providing real-time data support for the tobacco drying process. This allows for precise adjustments to the drying process and improves product quality. In a specific embodiment, the drying drum 20 is 10 meters long, and the support rod 10 is 9.4 meters long. The support rod 10 is made of stainless steel and weighs 6 kg.

[0043] The temperature and humidity sensor 50 is a high-temperature resistant sensor. Its humidity measurement range is 0-100% RH and its temperature range is -70°C-260°C. Its humidity measurement accuracy is ±2% RH (at 20-95% RH and 25°C), and its temperature measurement accuracy is ±0.5°C (at 0-50°C). The sensor operates in an ambient temperature range of -20°C to 85°C and a humidity range of 10-95% RH. Its load capacity is available in current output (≤500Ω) and voltage output (≥10kΩ). It requires a 24V DC power supply (operable within the 15V to 36V DC range). Its response time is ≤2 seconds (at a wind speed of 1m / s). Its long-term stability is ≤0.1°C / year for temperature change and ≤1% RH / year for humidity change. The sensor can be installed in a pipe or on a wall, with M27 x 2 threaded mounting or wall-mounting capabilities. The sensor's housing measures 135 mm x 90 mm x 46 mm and is made of white ABS material, offering excellent high-temperature resistance and durability.

[0044] In this embodiment, the temperature and humidity collection device inside the drying drum comprises a support rod 10, a temperature and humidity sensor 50, and an electrical control box 60. The support rod 10 is positioned axially within the drying drum 20 and comprises a first end 11 and a second end 12. The first end 11 is connected to the end face of the drying drum 20 via a bearing 30, while the second end 12 extends through the other end face of the drying drum 20 and is secured there by a locking member 40. The temperature and humidity sensor 50 is mounted on the support rod 10 and monitors the temperature and humidity inside the drying drum 20. The electrical control box 60 is located outside the drying drum 20 and communicates with the temperature and humidity sensor 50 via a signal line 70, receiving temperature and humidity data from the sensor. This design enables real-time monitoring of the temperature and humidity inside the drying drum 20, effectively tracking changes in the tobacco state and providing real-time data support for adjustments to the tobacco drying process, thereby improving product quality. Furthermore, this design does not affect the normal production operation of the drying drum 20 or its safety functions.

[0045] In some optional embodiments, the fiber drying drum 20 includes a drum body 21, a feed cover 22 and a discharge cover 23 disposed at opposite ends of the drum body 21, and a protective cover 24 disposed at the feed cover 22. The first end 11 is connected to the discharge cover 23 via a bearing 30, and the second end 12 passes through the feed cover 22 and extends to the exterior of the protective cover 24, where it is secured by a locking member 40. It should be further noted that the protective cover 24 is disposed at the feed cover 22, and its aperture is designed to be larger than the diameter of the feed cover 22 to ensure that it does not interfere with the movement of the drum body 21 and the feed cover 22.

[0046] In some optional embodiments, bearing 30 is a center-aligning bearing, with first end 11 connected to the inner race of the center-aligning bearing, and discharge end cap 23 connected to the outer race of the center-aligning bearing. Specifically, the center-aligning bearing is mounted on a stainless steel plate, which is bolted to discharge end cap 23. In this embodiment, bolting the stainless steel plate to discharge end cap 23 facilitates installation and removal, facilitating subsequent maintenance and replacement.

[0047] In one specific embodiment, the discharge end cap 23 is provided with a connector 231 for connecting to a rotating member. In this embodiment, the rotation of the rotating member drives the discharge end cap 23 to rotate along with it. Due to the design of the aligning bearing, the support rod 10 does not rotate with the rotation of the discharge end cap 23. This structure ensures that the temperature and humidity sensor 50 on the support rod 10 can be stably fixed inside the tobacco drying drum 20, thereby effectively monitoring temperature and humidity changes within the tobacco drying drum 20. In this way, the temperature and humidity sensor 50 can more accurately collect temperature and humidity data within the tobacco drying drum 20, providing reliable data support for optimizing the tobacco drying process.

[0048] In some optional embodiments, the feed end cover 22 is provided with an avoidance hole 221, through which the second end 12 passes. In this embodiment, the provision of the avoidance hole 221 effectively avoids interference between the support rod 10 and the feed end cover 22, so that the support rod 10 does not rotate with the rotation of the feed end cover 22.

[0049] In some optional embodiments, the supporting rod 10 is a hollow structure, and the signal line 70 is disposed in the supporting rod 10 and extends through the second end 12 along the axial direction of the supporting rod 10 to the outside of the drying drum 20 .

[0050] In some other optional embodiments, the signal line 70 is disposed outside the supporting rod 10 and extends along the axial direction of the supporting rod 10 through the avoidance hole 221 to the outside of the drying drum 20. The signal line 70 is fixed to the outer wall of the supporting rod 10.

[0051] In some optional embodiments, the locking member 40 includes a fixing bracket 41 and a connecting bolt. The fixing bracket 41 is positioned on the side of the protective cover 24 away from the feed end cap 22; the connecting bolt is connected between the fixing bracket 41 and the second end 12. In this embodiment, the connecting bolt secures the second end 12 of the load-bearing bar 10 to the fixing bracket 41, facilitating installation and removal, and facilitating subsequent maintenance and replacement.

[0052] It's worth noting that the fixing bracket 41 is made of stainless steel. The stainless steel is larger than the support rod 10. This effectively supports the drying drum 20 during startup and shutdown, preventing the angular tilting forces generated by the drying drum 20 from directly acting on the support rod 10 and potentially damaging it. Specifically, during shutdown and startup of the drying drum 20, which typically tilts at an angle of 0-30°, the larger stainless steel than the support rod effectively mitigates the angular tilting forces generated during startup and shutdown.

[0053] In some optional embodiments, the number of temperature and humidity sensors 50 is five, and the five temperature and humidity sensors are evenly spaced on the supporting rod 10. In a specific embodiment, the length of the tobacco drying drum 20 is 10 meters, and a temperature and humidity sensor 50 is installed every 2 meters to more comprehensively collect temperature and humidity data inside the tobacco drying drum 20, thereby providing reliable data support for optimizing the tobacco drying process.

[0054] In some optional embodiments, a reinforcing rib 80 is provided below the load bar 10 to effectively prevent deformation of the load bar 10 during use. The specifications of the reinforcing rib 80 are 6m long, 0.4m wide and 0.02m thick.

[0055] In some optional embodiments, the temperature and humidity sensor 50 is mounted on the load-bearing bar 10 via a connecting assembly, which includes a clamp 91, a connecting plate 92, and a connecting hole 93. The clamp 91 is welded to the circumference of the load-bearing bar 10; the connecting plate 92 is welded to the clamp 91; and a connecting hole 93 is provided on the connecting plate 92 for mounting the temperature and humidity sensor 50. The connecting plate 92 is a stainless steel sheet with a size of 50 cm x 50 cm. The connecting assembly in this embodiment includes the clamp 91, the connecting plate 92, and the connecting hole 93. This design reduces the weight acting on the load-bearing bar 10, thereby preventing damage to the load-bearing bar 10 caused by excessive weight.

[0056] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for collecting temperature and humidity in a drying drum, characterized in that: include: A bearing rod is arranged inside the drying drum along the axial direction of the drying drum, and includes a first end and a second end. The first end is connected to the end face of the drying drum through a bearing, and the second end passes through the other end face of the drying drum and extends to the outside, and is fixed by a locking member. A temperature and humidity sensor is mounted on the bearing rod and is used to monitor the temperature and humidity inside the drying drum; The electric control box is arranged outside the silk drying drum and is communicatively connected to the temperature and humidity sensor via a signal line, and is used for receiving temperature and humidity data monitored by the temperature and humidity sensor.

2. The temperature and humidity collection device in the silk drying drum according to claim 1, characterized in that: The silk drying drum comprises a drum body, a feed end cover and a discharge end cover provided at opposite ends of the drum body, and a protective cover provided at the position of the feed end cover; The first end is connected to the discharge end cover through the bearing, and the second end passes through the feed end cover and extends to the outside of the protective cover and is fixed by the locking member.

3. The temperature and humidity collection device in the fiber drying drum according to claim 2, characterized in that: The bearing is a core-aligning bearing, the first end is connected to the inner ring of the core-aligning bearing, and the discharge end cover is connected to the outer ring of the core-aligning bearing; And / or, a connecting piece is provided on the discharge end cover, and the connecting piece is used to connect to the rotating piece.

4. The temperature and humidity collection device in the fiber drying drum according to claim 2, characterized in that: The feed end cover is provided with an avoidance hole, and the second end passes through the avoidance hole.

5. The temperature and humidity collection device in the fiber drying drum according to claim 4, characterized in that: The bearing rod is a hollow structure. The signal line is arranged in the bearing rod and extends through the second end along the axial direction of the bearing rod to the outside of the silk drying cylinder.

6. The temperature and humidity collection device in the fiber drying drum according to claim 4, characterized in that: The signal line is arranged outside the bearing rod, passes through the avoidance hole along the axial direction of the bearing rod and extends to the outside of the wire drying cylinder.

7. The temperature and humidity collection device in the fiber drying drum according to claim 2, characterized in that: The locking member comprises: A fixed bracket is arranged on a side of the protective cover away from the feed end cover; A connecting bolt is connected between the fixing bracket and the second end.

8. The temperature and humidity collection device in the fiber drying drum according to claim 1, characterized in that: The number of the temperature and humidity sensors is five, and the five temperature and humidity sensors are arranged on the bearing rod at equal intervals.

9. The temperature and humidity collection device in the fiber drying drum according to claim 1, characterized in that: Reinforcing ribs are provided below the bearing rods.

10. The temperature and humidity collection device in the fiber drying drum according to claim 1, characterized in that: The temperature and humidity sensor is mounted on the bearing rod via a connecting assembly, wherein the connecting assembly comprises: A clamping hoop, welded on the circumference of the bearing rod; A connecting plate, welded to the clamp; A connecting hole is provided on the connecting plate and is used for installing the temperature and humidity sensor.