A hot air circulation device and a tobacco curing system

Abstract

This invention relates to the field of hot air circulation technology, specifically to a hot air circulation device, including a tobacco curing chamber, with a base of the hot air circulation device fixedly connected to the side surface of the tobacco curing chamber. The beneficial effects are as follows: The hot air circulation device and tobacco curing system proposed in this invention, by fixing the end of a toggle block to the surface of a rubber baffle, facilitates the rotation of the rubber baffle within the movable slot by the toggle block. Therefore, by changing the airflow rate inside the air inlet duct, the circulation efficiency of the fan delivering airflow to the hot air circulation device can be adjusted. Thus, the hot air circulation device can control the circulation of hot airflow inside the tobacco curing chamber as needed. When the rubber baffle is rotated within the movable slot, the dust on its surface is cleaned by a brush on the inner surface of the brush plate, preventing dust adhering to the rubber baffle surface from entering the hot air circulation device during fan-driven airflow, thereby affecting the curing quality of the tobacco leaves inside the curing chamber.

Description

Technical Field

[0001] This invention relates to the field of hot air circulation technology, specifically to a hot air circulation device and a tobacco curing system. Background Technology

[0002] The tobacco leaf preparation process requires a roasting process, and the quality of the roasting directly determines the quality of the tobacco leaves. Therefore, the tobacco leaf roasting process is extremely important. To ensure the quality of tobacco leaf roasting, it is often necessary to design the airflow circulation in the tobacco leaf roasting site in a specific way, so that the hot air distribution is more uniform and the tobacco leaves are roasted more evenly.

[0003] However, in the existing technology, the internal airflow of the existing hot air circulation drying machine is inconvenient due to its single circulation direction and uneven airflow. Furthermore, when the hot air circulation equipment delivers hot air into the drying room during the tobacco drying process, the hot air flow in the drying room cannot be controlled by adjusting the amount of input air. At the same time, when the hot air circulation equipment needs to be installed and connected to other pipes, it is not convenient to fix it. When dust and debris in the air are transported into the hot air circulation equipment, they can easily affect the quality of the dried tobacco leaves.

[0004] Therefore, we need a hot air circulation device and a tobacco curing system to solve the problem of circulating hot air into the tobacco curing equipment in existing hot air circulation devices, and also to control the amount of air input to the hot air circulation device to adjust the curing effect of the tobacco leaves. Summary of the Invention

[0005] The purpose of this invention is to provide a hot air circulation device and a tobacco curing system to solve the problem of circulating hot air for tobacco curing in existing hot air circulation devices mentioned in the background art, and to achieve the effect of adjusting the tobacco curing by controlling the amount of air input to the hot air circulation device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hot air circulation device, including a tobacco curing chamber, wherein the base of the hot air circulation device is fixedly connected to the side surface of the tobacco curing chamber, the end of the output pipe of the hot air circulation device penetrates through the side surface of the tobacco curing chamber, a fan is provided on the side surface of the hot air circulation device, and the surface of the fan is connected to the end of the air inlet pipe by fixing bolts.

[0007] Preferably, one end of the air inlet duct is provided with a pipe insertion hole, the pipe insertion hole has an annular groove, the outer diameter of the pipe insertion hole matches the outer diameter of the hose, and the inner annular surface of the pipe insertion hole is provided with an anti-slip groove, the depth of the anti-slip groove is equal to the depth of the pipe insertion hole, and multiple sets of anti-slip grooves are provided, which are arranged at equal distances and of equal size with the tobacco curing room as the central axis.

[0008] Preferably, the outer circumference of the air intake duct has an opening that communicates with the insertion hole of the duct body. Multiple openings are provided, and an extrusion plate is movably inserted into the opening. The extrusion plate is in the shape of an "I" and the distance between two parallel plates of the extrusion plate is greater than the depth of the opening. The end of the extrusion plate extending into the insertion hole of the duct body is integrally formed with a retaining strip that matches the anti-slip groove. After the hose is inserted into the insertion hole of the duct body, the extrusion plate is pushed, and the retaining strip locks the hose in the anti-slip groove. A rubber support block is fixed to the outer wall of the air intake duct, and one end of the rubber support block is fixed to one plate of the extrusion plate.

[0009] Preferably, the other end of the extrusion plate is provided with an inclined surface, and a compression collar is fitted on the body of the air intake pipe. The outer ring surface of the compression collar is provided with a clenching groove, which is an annular groove. A rubber ring is fixed on the inner ring surface of the compression collar. The rubber ring is clamped between the compression collar and the air intake pipe and generates elastic deformation. By moving the compression collar along the inclined surface, the extrusion plate is squeezed into the opening to clamp the hose. A retaining ring is fixed at one end of the outer ring of the air intake pipe to limit the compression collar.

[0010] Preferably, a fixed baffle is fixed to the inner ring surface of the air intake duct. The fixed baffle has a semi-circular plate structure. A limiting ring plate is integrally formed at the top center of the fixed baffle. A fixed rotating rod is provided at the inner ring opening of the limiting ring plate. The fixed rotating rod passes through the rubber baffle. The rubber baffle has a semi-circular plate structure. The diameter of the rubber baffle is larger than the diameter of the fixed baffle. The rubber baffle is rotatably connected in a movable groove. The movable groove is an annular groove and is opened on the inner ring surface of the air intake duct. A knob pin is fixedly connected to one end of the brush plate. A fixed rotating rod is movably sleeved on the inner ring surface of the knob pin. The internal thread of the knob pin is connected to the screw surface of the sleeve. A pressure plate is integrally formed at the screw end of the sleeve. The inner surface of the pressure plate abuts against the surface of the knob pin to securely install the brush plate and the fixed rotating rod. A brush layer is provided on the inner surface of the brush plate, and the brush layer on the inner surface of the brush plate contacts the outer surface of the rubber baffle.

[0011] Preferably, the internal through holes of the fixed baffle and the rubber baffle are sleeved on the surface of the fixed rotating rod, the surface of the fixed rotating rod is sleeved on the inner surface of the sleeve, the end of the brush plate is fixedly connected to the surface of the brush plate, the internal thread of the fixed rotating rod is connected to the screw surface of the knob pin, and the inner surface of the disc of the knob pin abuts against the surface of the sleeve.

[0012] Preferably, the opening is arc-shaped and the size of the opening is larger than the size of the extrusion plate. The number of extrusion plates is four, and the four extrusion plates are arranged in a circular array along the center point of the air intake duct. The longitudinal cross-section of the extrusion plates is "I" shaped.

[0013] Preferably, the movable groove is circular and disposed inside the air intake duct, and the radius of the movable groove is equal to the radius of the rubber baffle.

[0014] Preferably, the opening is arc-shaped and the size of the opening is larger than the size of the extrusion plate. The number of extrusion plates is four, and the four extrusion plates are arranged in a circular array along the center point of the air intake duct.

[0015] A tobacco curing system, including a hot air circulation device.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By fixing the end of the actuating block to the surface of the rubber baffle, it is easy to rotate the rubber baffle inside the movable slot by the actuating block. Therefore, by changing the airflow rate inside the air intake duct, the circulation efficiency of the fan delivering airflow to the hot air circulation equipment can be adjusted. Thus, the hot air circulation equipment can be controlled to circulate the hot airflow inside the tobacco curing chamber as needed. By setting a fixed rotating rod between the fixed baffle and the rubber baffle, the rubber baffle is stabilized by the fixed rotating rod. The knob screw is sleeved on the end of the fixed rotating rod, and then the end of the brush plate is fixedly connected to the surface of the sleeve. Therefore, when the rubber baffle is rotated on the inner wall of the movable slot, the dust on its surface is cleaned by the brush on the inner surface of the brush plate, so that the dust adhering to the surface of the rubber baffle does not enter the inside of the hot air circulation equipment when the fan delivers airflow, thereby affecting the curing quality of the tobacco leaves inside the tobacco curing chamber. This further solves the problem of circulating hot air to the tobacco curing chamber in the existing hot air circulation equipment, and can also realize the control of the input air volume of the hot air circulation equipment to adjust the curing effect of the tobacco leaves. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention:

[0018] Figure 2 This is a top view of the overall structure of the present invention:

[0019] Figure 3 for Figure 2 Cross-sectional view of the structure at point AA:

[0020] Figure 4 Diagram showing the connection between the hot air circulation equipment and the air intake duct:

[0021] Figure 5 This is a top view schematic diagram of the air intake duct structure of the present invention:

[0022] Figure 6 for Figure 5 Cross-sectional view of the structure at point BB:

[0023] Figure 7 Diagram showing the connection between the air intake duct and the rubber baffle:

[0024] Figure 8 This is a schematic diagram showing the connection between the fixed baffle and the rubber baffle.

[0025] In the diagram: 1. Tobacco curing barn; 2. Hot air circulation equipment; 3. Fan; 4. Fixing bolt; 5. Air inlet duct; 6. Fixing baffle; 7. Notch; 8. Rubber baffle; 9. Actuating block; 10. Compression collar; 11. Pipe insertion hole; 12. Expansion port; 13. Extrusion plate; 14. Anti-slip groove; 15. Brush plate; 16. Sleeve; 17. Movable groove; 18. Fixing rotating rod; 19. Knob screw. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1

[0028] Please see Figures 1-8 This invention provides a technical solution: a hot air circulation device, including a tobacco curing chamber 1, with a base of a hot air circulation device 2 fixedly connected to the side surface of the tobacco curing chamber 1. The end of the output pipe of the hot air circulation device 2 penetrates the side surface of the tobacco curing chamber 1. A fan 3 is provided on the side surface of the hot air circulation device 2, and the surface of the fan 3 is connected to the end of an air inlet pipe 5 by fixing bolts 4. By setting the fan 3 on the side surface of the hot air circulation device 2 and then penetrating the end of the output pipe of the fan 3 through the side surface of the tobacco curing chamber 1, when the fan 3 is started, the airflow is heated and transported to the interior of the tobacco curing chamber 1 through the hot air circulation device 2, thereby achieving the curing effect on the tobacco leaves suspended inside the tobacco curing chamber 1. The surface of the fan 3 is connected to the end of the air inlet pipe 5 by fixing bolts 4, so the air inlet pipe 5 can be inserted and removed from the surface of the fan 3 for replacement.

[0029] Example 2

[0030] See attached document Figures 1 to 8 Based on Embodiment 1, in order to connect the air intake duct 5 to other ducts, one end of the air intake duct 5 is provided with a duct insertion hole 11. The duct insertion hole 11 has an annular groove, and the outer diameter of the duct insertion hole 11 matches the outer diameter of the hose. The inner annular surface of the duct insertion hole 11 is provided with an anti-slip groove 14. The depth of the anti-slip groove 14 is equal to the depth of the duct insertion hole 11. Multiple sets of anti-slip grooves 14 are provided, and the multiple sets of anti-slip grooves 14 are arranged at equal distances and of equal size with the tobacco curing room 1 as the central axis.

[0031] When the air intake duct 5 needs to be equipped with a gas hose to deliver airflow into the fan 3, the end of the hose is inserted into the surface of the pipe body insertion hole 11, the surface of the port 12 is movably connected to the surface of the extrusion plate 13, and then the compression ring 10 is moved on the surface of the air intake duct 5, thereby compressing the hose on the surface of the extrusion plate 13 through the inner wall of the compression ring 10. Therefore, the end of the hose is securely installed inside the pipe body insertion hole 11, thus connecting the air intake duct 5 to other pipe bodies.

[0032] Example 3

[0033] See attached document Figures 1 to 8 Based on Embodiment 2, in order to avoid affecting the curing quality of the tobacco leaves inside the tobacco curing chamber 1, a fixed baffle 6 is fixed to the inner ring surface of the air inlet duct 5. The fixed baffle 6 has a semi-circular plate structure, and a limiting ring plate is integrally formed at the top center of the fixed baffle 6. A fixed rotating rod 18 is provided at the inner ring opening of the limiting ring plate. The fixed rotating rod 18 passes through the rubber baffle 8. The rubber baffle 8 has a semi-circular plate structure, and the diameter of the rubber baffle 8 is larger than the diameter of the fixed baffle 6. The rubber baffle 8 is rotatably connected in the movable groove 17, which is an annular groove. Furthermore, the movable groove 17 is opened on the inner ring surface of the air intake duct 5. One end of the brush plate 15 is fixedly connected to the knob pin 19. The inner ring surface of the knob pin 19 is movably sleeved with the fixed rotating rod 18. The internal thread of the knob pin 19 is connected to the screw surface of the sleeve 16. The screw end of the sleeve 16 is integrally formed with a pressure plate. The inner surface of the pressure plate abuts against the surface of the knob pin 19 to securely install the brush plate 15 and the fixed rotating rod 18. The inner surface of the brush plate 15 is provided with a brush layer, and the inner surface brush layer of the brush plate 15 contacts the outer surface of the rubber baffle 8.

[0034] By setting a fixed rotating rod 18 between the fixed baffle 6 and the rubber baffle 8, the rubber baffle 8 is stabilized by the fixed rotating rod 18. The knob screw 19 is sleeved on the end of the fixed rotating rod 18, and then the end of the brush plate 15 is fixedly connected to the surface of the sleeve 16. Therefore, when the rubber baffle 8 is turned on the inner wall of the movable groove 17, the dust on its surface is cleaned by the brush on the inner surface of the brush plate 15, so as to prevent the dust stuck on the surface of the rubber baffle 8 from entering the interior of the hot air circulation equipment 2 when the fan 3 delivers airflow, thereby avoiding affecting the curing quality of the tobacco leaves inside the tobacco curing room 1.

[0035] Example 4

[0036] See attached document Figures 1 to 8Based on Embodiment 3, in order to replace the brush plate 15, the internal through holes of the fixed baffle 6 and the rubber baffle 8 are sleeved on the surface of the fixed rotating rod 18, the surface of the fixed rotating rod 18 is sleeved on the inner surface of the sleeve 16, the surface of the sleeve 16 is fixedly connected to the end of the brush plate 15, the internal thread of the fixed rotating rod 18 is connected to the screw surface of the knob pin 19, and the inner surface of the disc of the knob pin 19 abuts against the surface of the sleeve 16.

[0037] By connecting the screw of the knob screw 19 to the inside of the fixed rotating rod 18, the brush plate 15 is securely installed on the surface of the knob screw 19, preventing the brush plate 15 from loosening inside the air intake duct 5, and also enabling the replacement of the brush plate 15.

[0038] Example 5

[0039] A tobacco curing system, including a hot air circulation device.

[0040] In actual use, a fan 3 is installed on the side surface of the hot air circulation device 2, and the end of the output pipe of the fan 3 is inserted through the side surface of the tobacco curing chamber 1. When the fan 3 is started, the airflow is heated and transported through the hot air circulation device 2 to the inside of the tobacco curing chamber 1, thereby achieving the curing effect on the tobacco leaves suspended inside the tobacco curing chamber 1. The surface of the fan 3 is connected to the end of the air inlet pipe 5 by fixing bolts 4, so the air inlet pipe 5 can be inserted and replaced from the surface of the fan 3. When the air inlet pipe 5 needs to be fitted with a gas hose to deliver airflow into the fan 3, the end of the hose is inserted into the surface of the pipe insertion hole 11, and the port 12 is connected. The surface of the compression plate 13 is connected to the surface of the air intake duct 5, and then the compression ring 10 is moved on the surface of the air intake duct 5, thereby compressing the air intake duct 5 on the surface of the compression plate 13 through the inner wall of the compression ring 10. Therefore, the end of the hose is securely installed inside the pipe insertion hole 11, realizing the connection between the air intake duct 5 and other pipe bodies. By fixing the surface of the fixed baffle 6 to the inner wall of the air intake duct 5, and movably connecting the surface of the rubber baffle 8 to the inside of the movable groove 17, when the rubber baffle 8 rotates inside the movable groove 17, the rubber baffle 8 can be rotated inside the air intake duct 5 so that it is interlaced with the fixed baffle 6. Then, by adjusting the fixed baffle 6 and the rubber baffle 8, the connection is made to the air intake duct 5. The included angle between the two changes the size of the ventilation airflow inside the air intake duct 5. By fixing the end of the actuating block 9 to the surface of the rubber baffle 8, it is easy to rotate the rubber baffle 8 inside the movable groove 17 by the actuating block 9. Therefore, by changing the airflow rate inside the air intake duct 5, the circulation efficiency of the airflow delivered by the fan 3 to the hot air circulation equipment 2 can be adjusted. Thus, the hot air circulation equipment 2 can be controlled to circulate the hot airflow inside the tobacco curing room 1 as needed. By setting a fixed rotating rod 18 between the fixed baffle 6 and the rubber baffle 8, the rubber baffle 8 is stabilized by the fixed rotating rod 18. The knob screw 19 is sleeved inside the fixed rotating rod 18. The end of the rubber baffle 8 is fixedly connected to the surface of the sleeve 16. Therefore, when the rubber baffle 8 is turned on the inner wall of the movable groove 17, the dust on its surface is cleaned by the brush on the inner surface of the brush plate 15, so as to prevent the dust stuck on the surface of the rubber baffle 8 from entering the interior of the hot air circulation equipment 2 when the fan 3 delivers airflow, thereby avoiding affecting the curing quality of the tobacco leaves inside the tobacco curing room 1. By connecting the screw of the knob screw 19 to the interior of the fixed rotating rod 18, the brush plate 15 is securely installed on the surface of the knob screw 19, preventing the brush plate 15 from loosening inside the air inlet duct 5, and also enabling the replacement of the brush plate 15.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot air circulation apparatus comprising a tobacco curing barn (1), characterized in that: The base of the hot air circulation device (2) is fixedly connected to the side surface of the tobacco curing room (1). The end of the output pipe of the hot air circulation device (2) passes through the side surface of the tobacco curing room (1). A fan (3) is provided on the side surface of the hot air circulation device (2). The surface of the fan (3) is connected to the end of the air inlet pipe (5) by fixing bolts (4). One end of the air inlet duct (5) is provided with a pipe insertion hole (11), which is an annular groove. The outer diameter of the pipe insertion hole (11) matches the outer diameter of the hose. The inner annular surface of the pipe insertion hole (11) is provided with an anti-slip groove (14). The depth of the anti-slip groove (14) is equal to the depth of the pipe insertion hole (11), and multiple sets of anti-slip grooves (14) are provided. The multiple sets of anti-slip grooves (14) are equidistant from the tobacco curing room (1) as the central axis. The air intake duct (5) is arranged in equal sizes; the outer ring surface of the air intake duct (5) is provided with an opening (12), the opening (12) is connected to the pipe body insertion hole (11), there are multiple openings (12), and a pressing plate (13) is movably inserted into the opening (12). The pressing plate (13) is in the shape of an "I" block. The distance between the two parallel plates of the pressing plate (13) is greater than the depth of the opening (12), and the pressing plate (13) extends into the pipe body insertion hole (11). 1) One end is integrally formed with a retaining strip, which matches the anti-slip groove (14). After the hose is inserted into the pipe body insertion hole (11), it pushes the extrusion plate (13), and the retaining strip clamps the hose in the anti-slip groove (14). The outer wall of the air intake pipe (5) is fixed with a rubber support block, one end of which is fixed to one plate of the extrusion plate (13). The other end of the extrusion plate (13) is provided with a bevel. A compression collar (1) is fitted on the pipe body of the air intake pipe (5). 0), the outer ring surface of the compression collar (10) is provided with a clenching groove, the clenching groove is an annular groove, and the inner ring surface of the compression collar (10) is fixed with a rubber ring. The rubber ring is clamped between the compression collar (10) and the air intake pipe (5) to produce elastic deformation. The compression collar (10) is moved along the inclined surface to squeeze the extrusion plate (13) into the opening (12) to clamp the hose. One end of the outer ring of the air intake pipe (5) is fixed with a retaining ring to limit the compression collar (10).

2. The hot air circulating apparatus according to claim 1, wherein: The inner ring surface of the air intake duct (5) is fixed with a fixed baffle (6). The fixed baffle (6) has a semi-circular plate structure. The top of the fixed baffle (6) is integrally formed with a limiting ring plate. The inner ring of the limiting ring plate is provided with a fixed rotating rod (18). The fixed rotating rod (18) passes through the rubber baffle (8). The rubber baffle (8) has a semi-circular plate structure. The diameter of the rubber baffle (8) is larger than the diameter of the fixed baffle (6). The rubber baffle (8) is rotatably connected in the movable groove (17). The movable groove (17) is an annular groove and is opened in the air intake duct (5). The inner ring surface of the brush plate (15) is fixedly connected to a knob pin (19) at one end. The inner ring surface of the knob pin (19) is movably sleeved with a fixed rotating rod (18). The internal thread of the knob pin (19) is connected to the screw surface of the sleeve (16). The end of the screw of the sleeve (16) is integrally formed with a pressure plate. The inner surface of the pressure plate abuts against the surface of the knob pin (19) for the stable installation between the brush plate (15) and the fixed rotating rod (18). The inner surface of the brush plate (15) is provided with a brush layer, and the inner surface brush layer of the brush plate (15) contacts the outer surface of the rubber baffle (8).

3. A hot air circulating apparatus according to claim 2, wherein: The internal through holes of the fixed baffle (6) and the rubber baffle (8) are sleeved on the surface of the fixed rotating rod (18). The surface of the fixed rotating rod (18) is sleeved on the inner surface of the sleeve (16). The end of the brush plate (15) is fixedly connected to the surface of the sleeve (16). The internal thread of the fixed rotating rod (18) is connected to the screw surface of the knob pin (19). The inner surface of the disc of the knob pin (19) abuts against the surface of the sleeve (16).

4. The hot air circulating apparatus according to claim 1, wherein: The opening (12) is arc-shaped and the size of the opening (12) is larger than the size of the extrusion plate (13). There are four extrusion plates (13). The four extrusion plates (13) are arranged in a ring array along the center point of the air intake pipe (5), and the longitudinal section of the extrusion plate (13) is "I" shaped.

5. The hot air circulating apparatus according to claim 2, wherein: The movable groove (17) is circularly arranged inside the air intake duct (5), and the radius of the movable groove (17) is equal to the radius of the rubber baffle (8).

6. A tobacco curing system characterized by: The hot air circulation device includes any one of claims 1-5.

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