Tower pipe type drying device of cut-tobacco dryer for tobacco production line

By introducing an automated cleaning device into the tower-tube drying unit of the tobacco processing line drying machine, the problems of increased thermal resistance and inconvenient cleaning caused by carbon buildup have been solved, achieving efficient drying and equipment stability, and improving production efficiency.

CN224084638UActive Publication Date: 2026-04-07HEBEI BAISHA TOBACCO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing tobacco processing line drying tower tube type drying devices are prone to carbon buildup in high temperature and high humidity environments, which leads to increased thermal resistance, decreased heat transfer efficiency, and inconvenient cleaning, affecting drying efficiency and equipment stability.

Method used

A cleaning device comprising a tank body, a tank cover, a rotating rod, a scraper, and a geared motor was designed. The scraper, driven by the motor, cleans the residue on the inner wall. Combined with a filter screen and a limiting groove structure, it achieves automated cleaning and maintenance.

Benefits of technology

It improves drying efficiency, keeps equipment clean, ensures the continuity and stability of the drying process, reduces equipment failures, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a tower tube type drying device for a cut-tobacco dryer in a tobacco production line, which comprises a base, two support frames are fixedly connected to the top of the base, a tank body is fixedly connected to the tops of the support frames, a tank cover is arranged outside the tank body, and a driving component for power output is fixedly connected to the outside of the tank cover. The output end of the driving assembly is fixedly connected with a rotating rod, and one end of the rotating rod is fixedly connected with a plurality of scraping plates. By means of the structure, after drying is finished, materials fall into the storage cabinet along the discharging port in the bottom of the tank body, the filter screen is arranged in the storage cabinet and can filter the materials, then residual materials are attached to the inner wall of the tank body, the rotating rod can be connected under driving of the motor to drive the scraping plate to clean the inner wall, and therefore the drying efficiency is improved. And therefore, the drying efficiency can be improved, residues on the inner wall can be removed in the drying process, and the equipment is kept clean.
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Description

Technical Field

[0001] This utility model relates to the field of drying technology, and in particular to a tower tube drying device for a tobacco processing line drying machine. Background Technology

[0002] The tower tube drying device of the tobacco processing line is a device used to dry tobacco shreds in tobacco processing. The heat medium in the heating tube transfers heat to the air and tobacco shreds in the drying tower through the tube wall, which raises the temperature in the drying tower and the temperature of the tobacco shreds. The moisture in the tobacco shreds begins to gradually turn into water vapor.

[0003] However, in existing technologies, due to the high temperature and humidity environment inside the pipes, carbon deposits easily form on the inner walls of the wire drying machine in some devices. If these carbon deposits cannot be cleaned, they will continue to accumulate, leading to increased thermal resistance and decreased heat transfer efficiency.

[0004] Among the existing patents, the one with publication number CN221902334U, entitled "A Cleaning Device for a Drying Machine," includes a cleaning scraper, a first support base, a first connecting rod, and an elastic element. The first support base is connected to the drying machine, one end of the first connecting rod is fixedly connected to the cleaning scraper, and the other end of the first connecting rod is hinged to the first support base. The elastic element is configured to apply force to the first connecting rod so that the cleaning scraper adheres to the surface of the roller. The scraper in this application requires manual movement to clean the entire roller, which is inconvenient to use.

[0005] Another application, CN201620258656.8, entitled "A High-Quality Drying Machine for Fibers," discloses a device including a tank. A temperature sensor is fixedly installed on the inner wall of the tank, and a lead screw is installed inside the tank. A tray is movably connected to the lead screw via a connecting block. A mesh cover is fixedly connected to the top of the tray via a snap-fit ​​and a locking block. A servo motor is fixedly connected to the top of the lead screw, penetrating the top of the tank. An air outlet duct is fixedly installed at the bottom of the inner cavity of the tank, and high-pressure nozzles are evenly spaced on the air outlet duct. The end of the air outlet duct away from the tray penetrates the tank and connects to the outlet of a drying device located outside the tank. This application does not disclose how to clean the soot on the inner wall. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing a tower-tube drying device for a tobacco processing line drying machine. This not only accelerates drying efficiency but also removes residue from the inner wall during the drying process, keeping the equipment clean. Regular cleaning and maintenance can reduce equipment malfunctions and ensure the continuity and stability of the drying process.

[0007] To achieve the above objectives, a tower-type drying device for a tobacco processing line drying machine is provided, comprising a base, two support frames fixedly connected to the top of the base, a tank body fixedly connected to the top of the support frames, a tank cover provided on the outside of the tank body, and a cleaning device for removing tobacco residue from the inner wall of the tank body provided on the tank cover.

[0008] Furthermore, the cleaning device includes a rotating rod rotatably connected to the can lid, a scraper fixedly connected to the rotating rod, and a geared motor for driving the rotating rod to rotate. The distance between the scraper and the inner wall of the can does not exceed 0.5 mm. The housing of the geared motor is fixedly connected to the can lid. The output end of the geared motor is fixedly connected to the rotating rod.

[0009] Furthermore, the interior of the tank is equipped with drying plates, and the top of the tank is fixedly connected to a feed inlet.

[0010] Furthermore, a discharge port is fixedly connected to the bottom of the tank, and multiple limiting grooves are provided inside the tank.

[0011] Furthermore, the can lid is internally fixedly connected to multiple fixing blocks, and one end of each fixing block is fixedly connected to a limiting component for installation and removal.

[0012] Furthermore, the limiting component includes a locking block, one end of which is fixedly connected to the outside of the fixing block. The locking block and the fixing block are used to position the can lid and the can body axially and radially.

[0013] Furthermore, one end of the support frame is slidably connected to a plurality of sliders, and one end of each slider is fixedly connected to a storage cabinet.

[0014] Furthermore, the storage cabinet is externally fixedly connected to a handle, and an internal filter is installed inside the cabinet. The filter removes tobacco debris.

[0015] The beneficial effects of this application are:

[0016] 1. The material enters the tank through the feed inlet and is dried by the drying plates. After drying, the material falls into the storage cabinet through the discharge port at the bottom of the tank. Inside the storage cabinet, there is a filter screen to filter the material. Then, the residual material will adhere to the inner wall of the tank. The inner wall can be cleaned by a scraper driven by a motor. The cleaned impurities will flow out through the discharge port. This not only speeds up the drying efficiency, but also removes the residue on the inner wall during the drying process, keeping the equipment clean.

[0017] 2. When damage occurs, the can lid can be rotated so that the internal fixing block connecting block is aligned with the limiting groove inside the can. When the locking block is rotated to the specified position in the limiting groove, the can lid can be removed, and the internal mechanism can be maintained and replaced. This regular cleaning and maintenance can reduce the occurrence of equipment failures and ensure the continuity and stability of the drying process.

[0018] 3. In case of production line abnormalities, the handling of semi-finished products with high moisture content normally requires manual mixing in small amounts according to the ratio. After using this device, the offline tobacco with high moisture content can be pre-dried according to the process requirements. The pre-dried tobacco can be mixed back in a large proportion, which greatly improves production efficiency. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0020] Figure 1 This is a perspective view of a tower-tube drying device for a tobacco processing line drying machine proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the drying sheet of the tower tube drying device for a tobacco shredding line drying machine proposed in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the filter screen of a tower tube drying device for a tobacco shredding line drying machine proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the structure of the clamping block of the tower tube drying device for a tobacco shredding line drying machine proposed in this utility model;

[0024] Figure 5 This is a schematic diagram showing the connection between the tank and the scraper.

[0025] Figure 6 This is a schematic diagram of the sliding groove at the end of the tank.

[0026] Figure 7 for Figure 6 Cross-sectional view at point AA.

[0027] Legend:

[0028] 1. Base; 2. Support frame; 3. Tank body; 4. Tank lid; 5. Inlet; 6. Outlet; 7. Gear motor; 8. Rotating rod; 9. Scraper; 10. Limiting groove; 11. Fixing block; 12. Locking block; 13. Sliding block; 14. Storage cabinet; 15. Handle; 16. Filter screen; 17. Drying sheet; 31-Groove; 32-Protrusion. Detailed Implementation

[0029] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0030] Example 1

[0031] Reference Figures 1-7 ,

[0032] This utility model provides a tower tube drying device for a tobacco shredding line drying machine, which includes a base 1. Two support frames 2 are fixedly connected to the top of the base 1 to provide support and ensure that the structure or object is kept in the required position and posture. The two support frames 2 are parallel to each other. A tank 3 is fixedly connected to the top of the support frame 2, and a can cover 4 is provided on the outside of the tank 3.

[0033] The can lid 4 is equipped with a cleaning device for cleaning the inner wall of the can body 3;

[0034] The cleaning device includes a rotating rod 8 rotatably connected to the can lid 4, a scraper 9 fixedly connected to the rotating rod 8, and a reduction motor 7 for driving the rotating rod 8 to rotate. The distance between the scraper 9 and the inner wall of the can 3 is greater than 0.2 mm and less than 0.5 mm. If this distance is too large, the residual material attached to the inner wall of the can 3 cannot be cleaned. If the distance is too small, such as the scraper 9 being in close contact with the inner wall, the resistance will be too great, and the scraper 9 will easily deform and get stuck.

[0035] The housing of the geared motor 7 is fixedly connected to the can lid 4; the output end of the geared motor 7 is fixedly connected to the rotating rod 8.

[0036] The interior of tank 3 is equipped with drying plates 17 to remove moisture from the material, prevent microbial growth, and extend shelf life.

[0037] The top of the tank body 3 is fixedly connected to a feed inlet 5 for feeding tobacco shreds;

[0038] The bottom of the tank 3 is fixedly connected to a discharge port 6 for discharging tobacco shreds; a storage cabinet 14 is provided below the discharge port 6 for temporarily storing dried tobacco shreds.

[0039] Working principle: The tobacco shreds enter the tank 3 through the feed inlet 5 and are dried by the drying plate 17. After drying, the tobacco shreds fall into the storage cabinet 14 through the discharge port 6 at the bottom of the tank 3. There is a filter screen 16 inside the storage cabinet 14 to filter the material. Then, there will be residual material adhering to the inner wall of the tank 3. The inner wall can be cleaned by the rotating rod 8 driven by the reduction motor 7, which drives the scraper 9. The cleaned impurities will flow out through the discharge port 6.

[0040] Example 2

[0041] like Figure 4-7 As shown,

[0042] The difference between this embodiment and embodiment 1 is that the connection relationship between the can lid 4 and the can body 3 is further refined;

[0043] Multiple limiting grooves 10 are provided at the ends of the tank body 3;

[0044] Multiple fixing blocks 11 are fixedly connected to the end of the can lid 4 for fixing and supporting various types of components and structures. They provide stability and support to ensure proper fit and stability between components and structures. One end of each fixing block 11 is fixedly connected to a limiting component for installation and removal. The fixing block 11 is inserted into the limiting groove 10 to prevent the can lid 4 from rotating along the circumference of the can body 3. The fixing block 11 is adapted to the limiting groove 10.

[0045] The limiting component includes a locking block 12, one end of which is fixedly connected to the outside of the fixing block 11. The locking block 12 engages with the limiting groove 10.

[0046] like Figure 6 As shown, the limiting groove 10 is provided with a protrusion 32 to facilitate the release of the locking block 12 from the groove when the can lid 4 is removed; when installing or removing the can lid 4, the locking block 12 can move in and out axially from the protrusion 32.

[0047] like Figure 7 As shown, the limiting groove 10 is also provided with a groove 31 to prevent the can lid 4 from axially dislodging from the can body 3; the locking block 12 is installed in the groove 31; the locking block 12 is used to prevent the can lid 4 from dislodging from the can body 3 during operation; when the reduction motor 7 is working, the locking block 12 must cooperate with the groove 31.

[0048] The rotation direction and attachment of the geared motor 7 during operation Figure 6 The arrows point in the same direction to prevent the locking block 12 on the fixing block 11 from dislodging from the protrusion 32. This ensures that the can lid 4 tightens more and more as the reduction motor 7 rotates.

[0049] When damage occurs, the can lid 4 can be rotated so that the connecting block 12 of the internal fixing block 11 is aligned with the limiting groove 10 inside the can body 3. When the block 12 rotates to the protrusion 32 of the limiting groove 10, the can can be pulled outward to remove the can lid 4 and maintain and replace the internal drying sheet 17 and scraper 9.

[0050] Example 3

[0051] The difference between this embodiment and embodiment 1 is that the connection method of the storage cabinet 14 is refined.

[0052] Multiple sliders 13 are slidably connected to the support frame 2, and the sliders 13 are fixedly connected to the storage cabinet 14.

[0053] A handle 15 is fixedly connected to the storage cabinet 14; a filter screen 16 is installed inside the storage cabinet 14.

[0054] The storage cabinet 14 can be pulled out during unloading using the slider 13. It is easy to use.

[0055] The filter screen 16 can separate the debris from the dried tobacco. The embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model.

Claims

1. A tower-tube drying device for a tobacco processing line drying machine, comprising a base (1), characterized in that: Two support frames (2) are vertically fixed on the base (1). The two support frames (2) are parallel to each other. A tank (3) is fixedly connected to the top of the support frame (2). A tank cover (4) is provided at one end of the tank (3). A cleaning device for cleaning the inner wall of the tank (3) is provided on the tank cover (4). The cleaning device includes a rotating rod (8) rotatably connected to the can lid (4), a scraper (9) fixedly connected to the rotating rod (8), and a geared motor (7) for driving the rotating rod (8) to rotate. The distance between the scraper (9) and the inner wall of the can body (3) is no more than 0.5 mm. The outer shell of the geared motor (7) is fixedly connected to the can lid (4). The output end of the geared motor (7) is fixedly connected to the rotating rod (8).

2. The tower-tube drying device for a tobacco processing line drying machine according to claim 1, characterized in that, The tank (3) is equipped with drying plates (17).

3. The tower-tube drying device for a tobacco processing line drying machine according to claim 1, characterized in that, The bottom of the tank (3) is fixedly connected to a discharge port (6); the top of the tank (3) is fixedly connected to a feed port (5).

4. The tower-tube drying device for a tobacco processing line drying machine according to claim 1, characterized in that, The end of the tank body (3) connected to the can lid (4) is provided with multiple limiting grooves (10); multiple fixing blocks (11) are fixedly connected inside the can lid (4), and the fixing blocks (11) are inserted into the limiting grooves (10); a limiting component for installing and removing the can lid (4) is fixedly connected to one end of the fixing block (11).

5. A tower-tube drying device for a tobacco processing line drying machine according to claim 4, characterized in that, The limiting component includes a locking block (12), one end of which is fixedly connected to the fixing block (11); the locking block (12) engages with the limiting groove (10).

6. The tower-tube drying device for a tobacco processing line drying machine according to claim 1, characterized in that, Multiple sliders (13) are slidably connected to the support frame (2), and the sliders (13) are fixedly connected to the storage cabinet (14).

7. A tower-tube drying device for a tobacco processing line drying machine according to claim 6, characterized in that, The storage cabinet (14) is fixedly connected to the outside with a handle (15), and a filter screen (16) is installed inside the storage cabinet (14).

Citation Information

Patent Citations

  • Cut -tobacco drier that oven -dry mass is high

    CN205409641U

  • Cut tobacco dryer cleaning device

    CN221902334U