Hot air circulation device for drying hot peppers

Abstract

The utility model discloses a hot air circulation device for pepper drying, which comprises a drying outer box and a drying inner box, the top of the drying inner box is provided with an air delivery pipe, the other end of the air delivery pipe is provided with a first air return pipe, the other end of the first air return pipe is connected with a hot air drying box, and the bottom of the hot air drying box is connected with a second air return pipe. The other end of the second air return pipe is provided with an air return inner pipe, the other end of the air return inner pipe is provided with an air return cover, the air outlet end of the air heater is connected with an air inlet inner pipe, the other end of the air inlet inner pipe is provided with an air inlet cover, a rotating shaft is rotationally arranged in the drying inner box, and the outer side of the rotating shaft is sleeved with a plurality of drying net frames. A drying layer and a regeneration mechanism are arranged in the hot air drying box; according to the device, hot air for drying can return to the drying inner box again after being dried, hot air circulation is formed, heat waste is avoided, the rotating drying net frame is rotationally matched with the air return cover and the air inlet cover, sufficient and thorough uniform drying treatment can be achieved, the drying efficiency is high, and the drying effect is good.

Description

Technical Field

[0001] This utility model relates to the field of chili production technology, and in particular to a hot air circulation device for drying chilies. Background Technology

[0002] Chili peppers are annual or short-lived perennial herbaceous or shrubby plants belonging to the genus Capsicum in the Solanaceae family. They are also known as sweet peppers, bell peppers, sweet peppers, and small red peppers. Chili peppers were originally distributed from Mexico to Colombia. They are now widely cultivated in countries around the world, and China has a cultivation history of hundreds of years. Chili peppers are a warm-loving crop, preferring warm and humid climates. They are not cold-resistant, waterlogging-resistant, or drought-resistant.

[0003] Chili drying involves treating the internal moisture of harvested chilies using drying equipment. Once the moisture is absorbed, the chilies are less prone to corrosion during long-term storage, achieving long-term preservation. Existing drying equipment typically uses hot air blown by a hot air blower for drying. However, the hot air blown through the chilies is directly discharged into the air, resulting in significant waste of heat resources, poor drying effect, and a need to improve drying efficiency. Therefore, we have designed a hot air circulation device for chili drying. Utility Model Content

[0004] The purpose of this invention is to provide a hot air circulation device for drying chili peppers, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A hot air circulation device for drying chili peppers includes an inner drying chamber disposed within an outer drying chamber. Multiple support legs are provided between the bottom of the inner drying chamber and the inner bottom wall of the outer drying chamber. The top of the inner drying chamber is tapered upwards and connected to an air supply pipe. The other end of the air supply pipe extends to the outside of the outer drying chamber and is connected to a first return air pipe. The other end of the first return air pipe is connected to a hot air drying box. The bottom of the hot air drying box is connected to a second return air pipe. The other end of the second return air pipe extends into the inner drying chamber and is connected to an inner return air pipe. The other end of the pipe is vertically upward and connected to a return air hood. The hot air drying box is fixedly installed in the middle of the left side surface of the drying outer box. A hot air fan is installed in the lower right side surface of the drying outer box. The air outlet of the hot air fan is connected to an air inlet pipe. The other end of the air inlet pipe is vertically upward and connected to an air inlet hood. A fixing rod is installed in the upper inner side of the drying inner box. A rotating shaft is rotatably installed between the fixing rod and the center of the inner bottom wall of the drying inner box. Multiple drying mesh frames are fixedly sleeved on the outside of the rotating shaft. The inside of the hot air drying box is equipped with a drying layer and a regeneration mechanism.

[0007] As a preferred embodiment of this utility model: a rotating rod is rotatably provided between the centers of the inner walls on the front and rear sides of the hot air drying box. Four rotating plates are provided at equal intervals along the circumferential direction on the outer surface of the rotating rod. Two non-adjacent rotating plates are provided with mounting openings. A mounting bracket for placing the drying layer is provided in the mounting opening. The drying layer is activated carbon. Rubber protrusions are provided on the side of the four rotating plates away from the rotating rod. Arc-shaped slots are provided on the four inner side walls of the hot air drying box for the four rubber protrusions to be inserted simultaneously.

[0008] As a further preferred embodiment of this utility model: the regeneration mechanism includes a housing fixedly disposed on the lower part of the left outer wall of the hot air drying box, the interior of the housing is connected to the interior of the hot air drying box, a push block and a support frame are slidably disposed inside the housing, the support frame is fixedly disposed on the right side of the push block, a heating component is disposed inside the support frame, an electric push rod is disposed on the left outer wall of the housing, the extended end of the electric push rod passes through the housing and is fixedly connected to the left side of the push block, and the heating component is a heating wire.

[0009] As a further preferred embodiment of this utility model: the front end of the rotating rod extends through to the outside of the hot air drying box and is connected to a circular plate. The outer surface of the circular plate is provided with four rotating arms. The positions of the four rotating arms correspond one-to-one with the positions of the four rotating plates, and one of the rotating arms is provided with an arrow indicator on its outer surface.

[0010] As a further preferred embodiment of this utility model: a mounting groove is provided on the lower part of the inner wall on the right side of the hot air drying box, and a humidity sensor is provided in the mounting groove.

[0011] As a further preferred embodiment of this utility model: multiple drying mesh frames are distributed at equal intervals along the length direction of the rotation axis, the drying mesh frames are circular, and the drying mesh frames are rotatably arranged inside the drying inner box.

[0012] As a further preferred embodiment of this utility model: the return air hood and the inlet air hood are both located at the bottom of the inner drying chamber, and the return air hood and the inlet air hood are symmetrically distributed on the left and right sides of the rotating shaft. The bottom of the inner drying chamber is provided with a drive motor, and the output shaft of the drive motor is connected to the bottom end of the rotating shaft.

[0013] As a further preferred embodiment of this utility model: an exhaust fan is provided on the air duct, an outer door is movably provided on the outside of the drying outer box, an inner door is provided on the outside of the drying inner box to cooperate with the outer door, and several reinforcing rods are provided at the bottom of the outer shell, with the other end of the reinforcing rods connected to the outside of the hot air drying box.

[0014] As a further preferred embodiment of this utility model: the top of the hot air drying box is movably provided with a top cover, and multiple air leakage holes are provided through the top cover.

[0015] The beneficial effects of this invention are as follows: During use, the hot air blower introduces hot air into the bottom of the drying chamber through the air inlet hood. The hot air rises through each drying rack, drying the chilies. The hot air then returns to the bottom of the drying chamber via the air supply pipe, the first return air pipe, the second return air pipe, and the return air hood, forming a hot air circulation that avoids heat waste. The return air also dries the activated carbon inside the hot air drying box. Simultaneously, the drive motor drives the rotating shaft, rotating multiple drying racks. Therefore, the chilies on the drying racks are thoroughly and evenly dried through the return air hood and the air inlet hood, greatly improving drying efficiency and effect. Furthermore, the device is equipped with a regeneration mechanism. With the use of two drying layers, the activated carbon can be regenerated while another spare drying layer continues to dry the hot air, ensuring continuous hot air circulation and further improving drying efficiency. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a main sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of a partial structure of the present invention;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0021] The components include: 1. Drying outer chamber; 2. Chamber door; 3. Hot air blower; 4. First return air duct; 5. Top cover; 6. Hot air drying box; 7. Electric push rod; 8. Outer shell; 9. Reinforcing rod; 10. Second return air duct; 11. Circular plate; 12. Rotating arm; 13. Drive motor; 14. Inner air inlet duct; 15. Air inlet hood; 16. Drying mesh frame; 17. Fixing rod; 18. Drying inner chamber; 19. Air duct; 20. Exhaust fan; 21. Rotating plate; 22. Inner return air duct; 23. Return air hood; 24. Rotating rod; 25. Push block; 26. Bearing frame; 27. Heating assembly; 28. Activated carbon; 29. ​​Rubber raised strip; 30. Arc-shaped slot; 31. Humidity sensor. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] Please see Figure 1-4 In this embodiment of the present invention, a hot air circulation device for drying chili peppers includes an inner drying chamber 18 disposed inside an outer drying chamber 1. Multiple support legs are provided between the bottom of the inner drying chamber 18 and the inner bottom wall of the outer drying chamber 1. The top of the inner drying chamber 18 is upwardly tapered and connected to an air supply pipe 19. The other end of the air supply pipe 19 extends to the outside of the outer drying chamber 1 and is connected to a first return air pipe 4. The other end of the first return air pipe 4 is connected to a hot air drying box 6. The bottom of the hot air drying box 6 is connected to a second return air pipe 10. The other end of the second return air pipe 10 extends into the inner drying chamber 18 and is connected to a return air pipe. The other end of the return air inner pipe 22 is vertically upward and connected to the return air hood 23. The hot air drying box 6 is fixedly installed in the middle of the left side surface of the drying outer box 1. The lower right side surface of the drying outer box 1 is provided with a hot air fan 3. The air outlet end of the hot air fan 3 is connected to the air inlet inner pipe 14. The other end of the air inlet inner pipe 14 is vertically upward and connected to the air inlet hood 15. The upper inner side of the drying inner box 18 is provided with a fixing rod 17. A rotating shaft is rotatably provided between the fixing rod 17 and the center of the inner bottom wall of the drying inner box 18. Multiple drying mesh frames 16 are fixedly sleeved on the outside of the rotating shaft. The inside of the hot air drying box 6 is provided with a drying layer and a regeneration mechanism.

[0024] A rotating rod 24 is rotatably provided between the centers of the inner walls on the front and rear sides of the hot air drying box 6. Four rotating plates 21 are equally spaced along the circumference on the outer surface of the rotating rod 24. Two non-adjacent rotating plates 21 are provided with mounting openings. A mounting rack for placing the drying layer is provided in the mounting openings. The drying layer is specifically activated carbon 28.

[0025] Each of the four rotating plates 21 has a rubber protrusion strip 29 on the side away from the rotating rod 24. The four inner sidewalls of the hot air drying box 6 have arc-shaped slots 30 for the four rubber protrusion strips 29 to be inserted simultaneously. When the four rubber protrusion strips 29 are inserted into the corresponding arc-shaped slots 30 at the same time, the two drying layers are in a horizontal state, and the other two rotating plates 21 are in a vertical state. The two vertical rotating plates 21 divide the internal space of the hot air drying box 6 into two parts. The right internal space of the hot air drying box 6 is used to connect the first return air pipe 4 and the second return air pipe 10. The drying layer inside this space is used to dry the hot return air that passes through, ensuring that the hot air re-entering the drying inner box 18 is dry and ensuring the drying effect.

[0026] The regeneration mechanism includes a housing 8 fixedly installed on the lower left outer wall of the hot air drying box 6. The interior of the housing 8 communicates with the interior of the hot air drying box 6. A push block 25 and a support frame 26 are slidably installed inside the housing 8. The support frame 26 is fixedly installed on the right side of the push block 25. A heating component 27 is installed inside the support frame 26. An electric push rod 7 is installed on the left outer wall of the housing 8. The extended end of the electric push rod 7 passes through the housing 8 and is fixedly connected to the left side of the push block 25. The heating component 27 is specifically a heating wire, which is common prior art and will not be described in detail. When the regeneration mechanism is in use: This device has two horizontally arranged drying layers inside the hot air drying box 6. When one of the drying layers is located in the hot air drying box... Inside the drying box 6, on the right side, when hot air is being dried, another drying layer is located inside the hot air drying box 6 on the left side. At this time, the electric push rod 7 can push the carrier frame 26 to the right via the push block 25, so that the carrier frame 26 moves inside the hot air drying box 6 and is located directly below the corresponding drying layer, so that the heating component 27 is located directly below the drying layer. When the heating component 27 is activated, it can heat the activated carbon 28 directly above it, causing the water adsorbed in the activated carbon 28 to evaporate, which can restore the adsorption capacity of the activated carbon and make it reusable. The push block 25 is always located inside the outer shell 8, and the push block 25 plays the role of traction, pushing and supporting the carrier frame 26.

[0027] The front end of the rotating rod 24 extends through to the outside of the hot air drying box 6 and is connected to a circular plate 11. The outer surface of the circular plate 11 is provided with four rotating arms 12. The positions of the four rotating arms 12 correspond one-to-one with the positions of the four rotating plates 21. An arrow is provided on the outer surface of one of the rotating arms 12. The circular plate 11 and the rotating arms 12 act as handles, making it easy to rotate the four rotating plates 21 to change the position of the two drying layers, that is, to swap the positions of the two drying layers. The arrow indicates the rotation angle for the operator, making operation easier.

[0028] A mounting groove is provided on the lower part of the inner wall on the right side of the hot air drying box 6, and a humidity sensor 31 is installed in the mounting groove. The humidity sensor 31 is used to monitor the humidity of the hot air after it has been dried by the activated carbon 28. If the humidity value is greater than the preset value, it means that the activated carbon 28 is too damp and is no longer suitable. At this time, the activated carbon 28 needs to be regenerated by the regeneration mechanism. At the same time, another spare drying layer rotates with the rotating plate 21 to the space between the first return air pipe 4 and the second return air pipe 10, so that the hot air circulation of the device continues, ensuring the continuous drying operation and improving the drying effect and drying efficiency.

[0029] The top of the hot air drying box 6 is movably provided with a top cover 5, and multiple air leakage holes are provided through the top cover 5; the top cover 5 is designed to facilitate opening the interior of the hot air drying box 6 for maintenance and other operations, and the multiple air leakage holes are designed to facilitate the evaporation and discharge of water vapor from the activated carbon 28 when the regeneration mechanism is in use.

[0030] Multiple drying racks 16 are evenly distributed along the length of the rotation axis. The drying racks 16 are circular and are rotatably positioned inside the drying chamber 18.

[0031] The return air hood 23 and the inlet air hood 15 are both located at the bottom of the inner drying chamber 18. The return air hood 23 and the inlet air hood 15 are symmetrically distributed on the left and right sides of the rotating shaft. The bottom of the inner drying chamber 18 is equipped with a drive motor 13, and the output shaft of the drive motor 13 is connected to the bottom end of the rotating shaft.

[0032] An exhaust fan 20 is installed on the air duct 19. The exhaust fan 20 facilitates the acceleration of gas flow and improves circulation efficiency and drying efficiency.

[0033] The outer drying chamber 1 is equipped with an outer door 2, and the outer drying chamber 18 is equipped with an inner door that matches the outer door 2. The double-chamber design of this device can improve its protective and heat preservation performance.

[0034] The bottom of the outer casing 8 is provided with several reinforcing rods 9, and the other end of the reinforcing rods 9 is connected to the outside of the hot air drying box 6; the reinforcing rods 9 provide a fixed support for the position of the outer casing 8.

[0035] Specifically, in use, the hot air blower 3 introduces hot air into the bottom of the drying chamber 18 through the air inlet hood 15. The hot air passes from bottom to top through each drying mesh rack 16, drying the chilies. The hot air then returns to the bottom of the drying chamber 18 through the air supply pipe 19, the first return air pipe 4, the second return air pipe 10, and the return air hood 23, forming a hot air circulation to avoid heat waste. The return air passes through the activated carbon 28 in the hot air drying box 6 and is dried. At the same time, the drive motor 13 drives the rotating shaft to rotate multiple drying mesh racks 16. Therefore, the chilies on the drying mesh racks 16 can be thoroughly and evenly dried through the return air hood 23 and the air inlet hood 15, greatly improving drying efficiency and drying effect. In addition, the device is also equipped with a regeneration mechanism. With the use of two drying layers, the activated carbon 28 can be regenerated while another spare drying layer can continue to be used for drying hot air, so that the hot air circulation of the device continues, ensuring continuous drying operation and further improving drying efficiency.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A hot air circulation device for drying chili peppers, comprising an inner drying chamber (18) disposed within an outer drying chamber (1), wherein a plurality of support legs are provided between the bottom of the inner drying chamber (18) and the inner bottom wall of the outer drying chamber (1); characterized in that: The top of the drying inner chamber (18) is tapered upwards, and an air supply pipe (19) is connected to the top of it. The other end of the air supply pipe (19) extends to the outside of the drying outer chamber (1) and is connected to a first return air pipe (4). The other end of the first return air pipe (4) is connected to a hot air drying box (6). The bottom of the hot air drying box (6) is connected to a second return air pipe (10). The other end of the second return air pipe (10) extends into the drying inner chamber (18) and is connected to a return air inner pipe (22). The other end of the return air inner pipe (22) is vertically upwards and is connected to a return air hood (23). The hot air drying box (6) A hot air blower (3) is fixedly installed on the middle of the left side surface of the drying outer box (1). A hot air blower (3) is provided on the lower right side surface of the drying outer box (1). The air outlet of the hot air blower (3) is connected to an air inlet pipe (14). The other end of the air inlet pipe (14) is vertically upward and connected to an air inlet hood (15). A fixing rod (17) is provided on the upper inner side of the drying inner box (18). A rotating shaft is provided between the fixing rod (17) and the center of the inner bottom wall of the drying inner box (18). Multiple drying mesh frames (16) are fixedly sleeved on the outside of the rotating shaft. A drying layer and a regeneration mechanism are provided inside the hot air drying box (6).

2. The hot air circulation device for drying chili peppers according to claim 1, characterized in that: A rotating rod (24) is rotatably provided between the centers of the inner walls on the front and rear sides of the hot air drying box (6). Four rotating plates (21) are provided at equal intervals along the circumferential direction on the outer surface of the rotating rod (24). Two non-adjacent rotating plates (21) are provided with mounting openings. A mounting bracket for placing the drying layer is provided in the mounting opening. The drying layer is activated carbon (28). Rubber protrusions (29) are provided on the side of the four rotating plates (21) away from the rotating rod (24). Arc-shaped slots (30) are provided on the four inner walls of the hot air drying box (6) for the four rubber protrusions (29) to be inserted simultaneously.

3. The hot air circulation device for drying chili peppers according to claim 2, characterized in that: The regeneration mechanism includes a housing (8) fixedly disposed on the lower part of the left outer wall of the hot air drying box (6). The interior of the housing (8) is connected to the interior of the hot air drying box (6). A push block (25) and a support frame (26) are slidably disposed inside the housing (8). The support frame (26) is fixedly disposed on the right side of the push block (25). A heating component (27) is disposed inside the support frame (26). An electric push rod (7) is disposed on the left outer wall of the housing (8). The extended end of the electric push rod (7) penetrates into the housing (8) and is fixedly connected to the left side of the push block (25). The heating component (27) is a heating wire.

4. A hot air circulation device for drying chili peppers according to claim 3, characterized in that: The front end of the rotating rod (24) extends through to the outside of the hot air drying box (6) and is connected to a circular plate (11). The outer surface of the circular plate (11) is provided with four rotating arms (12). The positions of the four rotating arms (12) correspond one-to-one with the positions of the four rotating plates (21), and one of the rotating arms (12) has an arrow indicator on its outer surface.

5. A hot air circulation device for drying chili peppers according to claim 4, characterized in that: The lower part of the inner wall on the right side of the hot air drying box (6) is provided with an installation groove, and a humidity sensor (31) is provided in the installation groove.

6. A hot air circulation device for drying chili peppers according to claim 1, characterized in that: Multiple drying racks (16) are distributed at equal intervals along the length of the rotation axis. The drying racks (16) are circular and are rotatably positioned inside the drying inner box (18).

7. A hot air circulation device for drying chili peppers according to claim 6, characterized in that: The return air hood (23) and the air inlet hood (15) are both located at the bottom of the inner drying chamber (18). The return air hood (23) and the air inlet hood (15) are symmetrically distributed on the left and right sides of the rotating shaft. The bottom of the inner drying chamber (18) is provided with a drive motor (13), and the output shaft of the drive motor (13) is connected to the bottom end of the rotating shaft.

8. A hot air circulation device for drying chili peppers according to claim 3, characterized in that: The air duct (19) is equipped with an exhaust fan (20), the outer side of the drying outer box (1) is provided with an outer box door (2), the outer side of the drying inner box (18) is provided with an inner box door that cooperates with the outer box door (2), the bottom of the outer shell (8) is provided with several reinforcing rods (9), and the other end of the reinforcing rods (9) is connected to the outer side of the hot air drying box (6).

9. A hot air circulation device for drying chili peppers according to claim 8, characterized in that: The top of the hot air drying box (6) is movably provided with a top cover (5), and multiple air leakage holes are provided through the top cover (5).

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