Heat pump type tobacco baking equipment with high drying speed

Abstract

The utility model relates to the field of tobacco baking, in particular to heat pump type tobacco baking equipment which is high in drying speed and comprises a frame body, a feeding pipe is fixedly connected to the upper portion of the frame body, a heat pump unit is fixedly connected to one side of the feeding pipe, a baking pipe is fixedly connected to the output end of the heat pump unit, and baking holes are formed in the surface of the baking pipe. The inner wall of the frame body is rotatably connected with a turnover mechanism, the lower portion of the frame body is fixedly connected with a discharging pipe, the inner wall of the discharging pipe is fixedly connected with a discharging plate, one side of the discharging pipe is fixedly connected with a circulating material pipe, one end of the circulating material pipe is fixedly connected to one end of the frame body, and the lower portion of the discharging pipe is fixedly connected with a circulating mechanism. The tobacco leaves are uniformly dried, and the tobacco leaf baking efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tobacco drying, and in particular to a heat pump type tobacco drying equipment with fast drying speed. Background Art

[0002] Tobacco is an annual herbaceous plant belonging to the genus Nicotiana in the family Solanaceae. Tobacco processing is a complex and delicate process, mainly involving the transformation of tobacco leaves into tobacco products that consumers can use, such as cigarettes and cigars. After the tobacco leaves mature and are harvested in the field, they need to be processed by curing and roasting. The main functions of roasting are to adjust the moisture content of the tobacco leaves, prevent mold, remove impurities, purify the aroma, kill insects and bacteria, and facilitate the storage and aging of the tobacco leaves.

[0003] Heat pump tobacco drying equipment is a device that uses a refrigeration system to cool and dehumidify humid air, and then uses the heat pump principle to recover the latent heat of condensation of moisture in the air to heat the air. It combines dehumidification (drying) and heat pump (energy recovery) technologies to achieve efficient and energy-saving drying of tobacco.

[0004] According to Chinese Patent Publication No. CN115944107A, a uniform tobacco drying device based on a heat pump includes a test drying chamber body. A heat pump unit is fixedly connected to the side wall of the test drying chamber body, and a conveying pipe is fixedly connected to the heat pump unit. The conveying pipe passes through the test drying chamber body and is fixedly connected to it. Multiple nozzles are installed on the top of the conveying pipe. A motor is fixedly connected to the side wall of the test drying chamber body, and multiple transmission rods rotatably connected to it pass through the test drying chamber body. The lower transmission rods are fixedly connected to the output end of the motor. Multiple drying plates are provided inside the test drying chamber body, and each drying plate is equipped with a vibration mechanism. This invention uses a continuously rotating cam to vibrate and turn the tobacco, exchanging the tobacco on the lower and upper sides, resulting in uniform drying and good drying effect.

[0005] However, the above-mentioned device achieves uniform drying by vibrating the tobacco, but the conveying pipe is located below the main body of the experimental drying chamber, and the tobacco leaves are not evenly distributed in the experimental drying chamber. This results in the lower layer of tobacco leaves in the experimental drying chamber being dried first, while the upper layer of tobacco leaves have not yet been dried, leading to uneven drying. Utility Model Content

[0006] The purpose of this invention is to provide a heat pump tobacco drying device with fast drying speed. This device has the advantages of conveniently circulating and drying tobacco leaves, making the tobacco leaves dry evenly, and improving the drying efficiency of tobacco leaves.

[0007] The purpose of this utility model is to provide a heat pump type tobacco drying equipment with fast drying speed, including a frame, a feeding pipe fixedly connected to the top of the frame, a heat pump unit fixedly connected to one side of the feeding pipe, a drying pipe fixedly connected to the output end of the heat pump unit, a drying hole opened on the surface of the drying pipe, a flipping mechanism rotatably connected to the inner wall of the frame, a discharge pipe fixedly connected to the bottom of the frame, a discharge plate fixedly connected to the inner wall of the discharge pipe, a circulation pipe fixedly connected to one side of the discharge pipe, one end of the circulation pipe fixedly connected to one end of the frame, and a circulation mechanism fixedly connected to the bottom of the discharge pipe.

[0008] Furthermore, the flipping mechanism includes a fixed plate, one end of which is fixedly connected to one side of the frame. A motor is fixedly connected to the surface of the fixed plate, and an intermittent wheel is fixedly connected to the output shaft of the motor. A transmission wheel is meshed on one side of the intermittent wheel, and a flipping rod is fixedly connected to one end of the transmission wheel. A ventilation hole is provided on the surface of the flipping rod, and the flipping rod is rotatably connected to the inner wall of the frame. A flipping plate is fixedly connected to the surface of the flipping rod, and a connection hole is provided on the surface of the flipping plate.

[0009] Furthermore, the circulation mechanism includes a connecting plate, which is fixedly connected to the bottom of the discharge pipe. A cylinder is fixedly connected to the surface of the connecting plate, and a fan frame is fixedly connected to the output end of the cylinder. A fan body is fixedly connected to the inner wall of the fan frame, and a limit plate is slidably connected to the surface of the fan frame. The limit plate is fixedly connected to the bottom of the circulation pipe.

[0010] Furthermore, the discharge plate is inclined and fixedly connected to the inner wall of the discharge pipe.

[0011] Furthermore, the baking tube is located on the inner wall of the flipping rod, and the flipping plates are all slidably connected to the inner wall of the frame.

[0012] Furthermore, the fan frame corresponds to the area below the circulating material pipe.

[0013] Furthermore, a filter screen is fixedly connected to the inner wall above the fan frame.

[0014] The working principle and application principle of this utility model are as follows: Tobacco leaves are fed into the frame through the feed pipe. The motor is started, causing the intermittent wheel to rotate. The intermittent wheel drives the transmission wheel to rotate, which in turn drives the rotating rod to rotate. The rotating rod rotates on the inner wall of the frame, causing the rotating plate to rotate intermittently on the inner wall of the frame. Since the intermittent wheel has only one tooth, it will drive the transmission wheel to rotate at a small angle after one revolution. Through the continuous rotation of the intermittent wheel, the transmission wheel can be driven to rotate intermittently, causing the heat pump unit to generate hot air. This air passes through the baking pipe, through the baking holes on the surface of the baking pipe, and into the rotating rod. Then, through the ventilation holes on the surface of the rotating rod, it reaches the surface of the rotating rod and bakes the tobacco leaves inside the frame. The flip-over plate divides the frame into sections, facilitating the separate drying of tobacco leaves. After drying, the leaves are discharged through the discharge pipe to the surface of the discharge plate. The inclined discharge plate guides the tobacco leaves into the circulating material pipe. When the tobacco leaves need to be dried in a circulating manner, the cylinder is activated, causing it to extend and slide the fan frame against the inner wall of the limiting plate until it reaches the bottom of the circulating material pipe. The fan body then blows the tobacco leaves back into the frame for continuous drying. The filter screen prevents tobacco leaves from entering the fan body. When the tobacco leaves need to be discharged, the cylinder retracts, causing the fan frame to retract into the limiting plate, thus facilitating the continuous drying of the tobacco leaves, ensuring even drying, and improving the drying efficiency.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: tobacco leaves enter the frame through the feeding pipe, the turning mechanism is activated to turn the tobacco leaves in the frame, the heat pump unit is activated to generate hot air that passes through the baking pipe and into the frame to bake the tobacco leaves. After baking, the tobacco leaves are discharged through the discharge pipe to the surface of the discharge plate. The tobacco leaves pass through the inclined discharge plate into the circulating material pipe, the circulation mechanism is activated to allow the tobacco leaves in the circulating material pipe to enter the frame for circulating baking. After baking, the circulation mechanism is activated to allow the tobacco leaves to be discharged through the bottom of the circulating material pipe, which facilitates the circulating baking of tobacco leaves, makes the tobacco leaves dry evenly, and improves the baking efficiency of tobacco leaves.

[0016] 1. Compared with the prior art, this utility model has the advantages of facilitating the cyclical baking of tobacco leaves, making the tobacco leaves dry evenly, and improving the baking efficiency of tobacco leaves.

[0017] 2. Compared with the prior art, this utility model has the advantages of facilitating the intermittent turning of tobacco leaves, improving the efficiency of baking, and enabling the tobacco leaves to be baked evenly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a heat pump tobacco drying device with fast drying speed according to this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of a heat pump tobacco drying device with fast drying speed according to this utility model;

[0020] Figure 3 This is a schematic diagram of the flipping mechanism of a heat pump tobacco drying device with fast drying speed according to this utility model;

[0021] Figure 4 This is a side view of the flipping mechanism of a heat pump tobacco drying device with fast drying speed according to this utility model.

[0022] Figure 5 This is a schematic diagram of the circulation mechanism of a heat pump tobacco drying device with fast drying speed according to this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Feed pipe; 3. Discharge pipe; 4. Heat pump unit; 5. Baking pipe; 6. Discharge plate; 7. Circulating material pipe; 11. Fixing plate; 12. Motor; 13. Intermittent wheel; 14. Transmission wheel; 15. Tilting rod; 16. Tilting plate; 21. Connecting plate; 22. Cylinder; 23. Fan frame; 24. Fan body; 25. Limiting plate; 26. Filter screen. DETAILED DESCRIPTION

[0024] To make the technical means, creative features, objectives and effects of the embodiments of this application easier to understand, the embodiments of this application are further described below in conjunction with the figures and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the embodiments of this application and are not intended to limit the embodiments of this application.

[0025] This specific embodiment includes a heat pump-type tobacco drying device with a fast drying speed, such as... Figure 1-5 As shown, a heat pump-type tobacco drying equipment with fast drying speed includes a frame 1 that supports the device. A feed pipe 2 is fixedly connected to the top of the frame 1, facilitating the placement of tobacco leaves. A heat pump unit 4 is fixedly connected to one side of the feed pipe 2, and a drying pipe 5 is fixedly connected to the output end of the heat pump unit 4. The drying pipe 5 guides the heat generated by the heat pump unit 4, and drying holes are opened on the surface of the drying pipe 5. A flipping mechanism is rotatably connected to the inner wall of the frame 1, facilitating the flipping and drying of the tobacco leaves. A discharge pipe 3 is fixedly connected to the bottom of the frame 1. The discharge pipe 3 leads out the tobacco leaves. A discharge plate 6 is fixedly connected to the inner wall of the discharge pipe 3. The discharge plate 6 discharges the tobacco leaves. A circulation pipe 7 is fixedly connected to one side of the discharge pipe 3. The circulation pipe 7 introduces the tobacco leaves into the frame 1. One end of the circulation pipe 7 is fixedly connected to one end of the frame 1. A circulation mechanism is fixedly connected to the bottom of the discharge pipe 3. The circulation mechanism facilitates the circulation and baking of the tobacco leaves, improving the baking efficiency of the tobacco leaves. The discharge plate 6 is fixedly connected to the inner wall of the discharge pipe 3 at an angle.

[0026] Through the above technical solution, tobacco leaves are fed into the frame 1 through the feed pipe 2. The turning mechanism is activated to turn the tobacco leaves in the frame 1. The heat pump unit 4 is activated to generate hot air that passes through the baking pipe 5 and reaches the frame 1 to bake the tobacco leaves. After baking, the tobacco leaves are discharged through the discharge pipe 3 to the surface of the discharge plate 6. The tobacco leaves then pass through the inclined discharge plate 6 to the circulating feed pipe 7. The circulation mechanism is activated to allow the tobacco leaves in the circulating feed pipe 7 to circulate and bake in the frame 1. After baking, the circulation mechanism is activated to discharge the tobacco leaves through the bottom of the circulating feed pipe 7, which facilitates the circulating baking of the tobacco leaves, makes the tobacco leaves dry evenly, and improves the baking efficiency of the tobacco leaves.

[0027] The heat pump unit 4 has the same internal structure as the uniform tobacco roasting equipment based on heat pump disclosed in Chinese Patent Publication No. CN115944107A, and is existing technology, so it will not be described in detail here.

[0028] like Figure 1-5 As shown, the flipping mechanism includes a fixed plate 11, one end of which is fixedly connected to one side of the frame 1. A motor 12 is fixedly connected to the surface of the fixed plate 11. An intermittent wheel 13 is fixedly connected to the output shaft of the motor 12. A transmission wheel 14 is meshed on one side of the intermittent wheel 13. A flipping rod 15 is fixedly connected to one end of the transmission wheel 14. A ventilation hole is provided on the surface of the flipping rod 15. The flipping rod 15 is rotatably connected to the inner wall of the frame 1. A flipping plate 16 is fixedly connected to the surface of the flipping rod 15. A connection hole is provided on the surface of the flipping plate 16. The baking tube 5 is located on the inner wall of the flipping rod 15. The flipping plates 16 are slidably connected to the inner wall of the frame 1.

[0029] Through the above technical solution, the motor 12 is started, causing the intermittent wheel 13 to rotate, which in turn causes the transmission wheel 14 to rotate, which in turn causes the transmission wheel 14 to rotate the rotating rod 15. The rotating rod 15 rotates on the inner wall of the frame 1, causing the rotating plate 16 to rotate intermittently on the inner wall of the frame 1. Since the intermittent wheel 13 has only one tooth, it will cause the transmission wheel 14 to rotate at a small angle after one revolution. Through the continuous rotation of the intermittent wheel 13, the transmission wheel 14 can rotate intermittently, causing the heat pump unit 4 to generate hot air that passes through the baking pipe 5, through the baking holes on the surface of the baking pipe 5, and into the rotating rod 15. Through the ventilation holes on the surface of the rotating rod 15, the hot air reaches the surface of the rotating rod 15 to bake the tobacco leaves in the frame 1. The rotating plate 16 divides the frame 1 into sections, facilitating the baking of tobacco leaves by section. The connecting holes on the surface of the rotating plate 16 facilitate the exchange of heat, allowing for intermittent turning of the tobacco leaves, improving baking efficiency, and ensuring that the tobacco leaves are baked evenly.

[0030] like Figure 1-5As shown, the circulation mechanism includes a connecting plate 21, which is fixedly connected to the lower part of the discharge pipe 3. A cylinder 22 is fixedly connected to the surface of the connecting plate 21. A fan frame 23 is fixedly connected to the output end of the cylinder 22. A fan body 24 is fixedly connected to the inner wall of the fan frame 23. A limit plate 25 is slidably connected to the surface of the fan frame 23. The limit plate 25 is fixedly connected to the lower part of the circulation pipe 7. The fan frame 23 corresponds to the lower part of the circulation pipe 7. A filter screen 26 is fixedly connected to the upper inner wall of the fan frame 23.

[0031] With the above technical solution, when the tobacco leaves need to be dried in a cyclic manner, the cylinder 22 is activated, causing the cylinder 22 to extend and drive the fan frame 23 to slide on the inner wall of the limiting plate 25 until it reaches below the circulating material pipe 7. The fan body 24 is then activated to blow the tobacco leaves in the circulating material pipe 7 back into the frame 1 for cyclic drying. The filter screen 26 prevents the tobacco leaves from entering the fan body 24. When the tobacco leaves need to be discharged, the cylinder 22 is retracted, causing the fan frame 23 to retract into the limiting plate 25 to discharge the tobacco leaves.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A heat pump type tobacco drying device with fast drying speed, comprising a frame (1), characterized in that: A feed pipe (2) is fixedly connected to the top of the frame (1). A heat pump unit (4) is fixedly connected to one side of the feed pipe (2). A baking pipe (5) is fixedly connected to the output end of the heat pump unit (4). Baking holes are opened on the surface of the baking pipe (5). A flipping mechanism is rotatably connected to the inner wall of the frame (1). A discharge pipe (3) is fixedly connected to the bottom of the frame (1). A discharge plate (6) is fixedly connected to the inner wall of the discharge pipe (3). A circulation pipe (7) is fixedly connected to one side of the discharge pipe (3). One end of the circulation pipe (7) is fixedly connected to one end of the frame (1). A circulation mechanism is fixedly connected to the bottom of the discharge pipe (3).

2. The heat pump tobacco drying equipment with fast drying speed according to claim 1, characterized in that: The flipping mechanism includes a fixed plate (11), one end of which is fixedly connected to one side of the frame (1). A motor (12) is fixedly connected to the surface of the fixed plate (11). An intermittent wheel (13) is fixedly connected to the output shaft of the motor (12). A transmission wheel (14) is meshed on one side of the intermittent wheel (13). A flipping rod (15) is fixedly connected to one end of the transmission wheel (14). A ventilation hole is provided on the surface of the flipping rod (15). The flipping rod (15) is rotatably connected to the inner wall of the frame (1). A flipping plate (16) is fixedly connected to the surface of the flipping rod (15). A connection hole is provided on the surface of the flipping plate (16).

3. A heat pump-type tobacco drying equipment with fast drying speed according to claim 1 or 2, characterized in that: The circulation mechanism includes a connecting plate (21), which is fixedly connected to the bottom of the discharge pipe (3). A cylinder (22) is fixedly connected to the surface of the connecting plate (21). A fan frame (23) is fixedly connected to the output end of the cylinder (22). A fan body (24) is fixedly connected to the inner wall of the fan frame (23). A limit plate (25) is slidably connected to the surface of the fan frame (23). The limit plate (25) is fixedly connected to the bottom of the circulation pipe (7).

4. A heat pump-type tobacco drying equipment with fast drying speed according to claim 1 or 2, characterized in that: The discharge plate (6) is fixedly connected to the inner wall of the discharge pipe (3) at an angle.

5. A heat pump-type tobacco drying equipment with fast drying speed according to claim 3, characterized in that: The discharge plate (6) is fixedly connected to the inner wall of the discharge pipe (3) at an angle.

6. A heat pump-type tobacco drying equipment with fast drying speed according to claim 2, characterized in that: The baking tube (5) is located on the inner wall of the flipping rod (15), and the flipping plate (16) is slidably connected to the inner wall of the frame (1).

7. A heat pump-type tobacco drying equipment with fast drying speed according to claim 3, characterized in that: The fan frame (23) is located below the circulating material pipe (7).

8. A heat pump type tobacco drying equipment with fast drying speed according to claim 5, characterized in that: The fan frame (23) is located below the circulating material pipe (7).

9. A heat pump type tobacco drying equipment with fast drying speed according to claim 3, characterized in that: A filter screen (26) is fixedly connected to the inner wall above the fan frame (23).

10. A heat pump type tobacco drying equipment with fast drying speed according to claim 5, 7, 8 or 9, characterized in that: A filter screen (26) is fixedly connected to the inner wall above the fan frame (23).

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