Efficient drying equipment for dried Chinese prickly ash
By adopting a design that combines a rotating hopper with spiral guide blades in the dried peppercorn drying equipment, the peppercorns in the hopper are pre-dried with hot air, which solves the problem of heat loss in the existing technology and realizes a highly efficient dried peppercorn drying process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIAHE ZHENGJIA AGRICULTURAL TECHNOLOGY CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-24
AI Technical Summary
In existing drying equipment, the discharge of hot and humid gas during the drying process leads to a significant loss of heat, resulting in energy waste and low drying efficiency.
Design a high-efficiency drying device for dried Sichuan peppercorns. The device combines a rotating hopper with a drying cylinder, uses spiral guide blades to turn the peppercorns, and provides hot air through a pipe-type air heater. Combined with an insulation cover, heat loss is reduced, thus achieving pre-drying of the peppercorns in the hopper.
It improves drying efficiency, reduces heat loss, and extends the service life of the equipment.
Smart Images

Figure CN224162877U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dried pepper preparation technology, and in particular to a high-efficiency drying equipment for dried pepper. Background Technology
[0002] Dried Sichuan peppercorns are a common seasoning in our daily lives, possessing a rich numbing aroma and unique taste. They are an indispensable ingredient in Chinese cuisine and are typically made from fresh Sichuan peppercorns through washing and drying. Traditional methods involve natural sun-drying or drying over a fire, while modern methods often use temperature- and time-controlled drying machines to prevent mold and color deterioration.
[0003] Existing drying equipment typically uses a rotary dryer, during which hot and humid gas is continuously discharged, resulting in a significant loss of heat, wasted energy, and low drying efficiency. Therefore, a high-efficiency drying device for dried peppercorns is proposed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the continuous discharge of hot and humid gas during the drying process, resulting in significant heat loss, energy waste, and low drying efficiency. This invention proposes a high-efficiency drying device for dried Sichuan peppercorns.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A high-efficiency drying device for dried Sichuan peppercorns includes:
[0007] The frame has two support plates fixedly connected between its two sides. Each support plate is equipped with a support wheel on its top. A rotatable drying cylinder is set on the top of the multiple support wheels. A feed inlet is provided at one end of the drying cylinder.
[0008] A shielding cover is rotatably connected to the bottom of the frame via a support column and is located on one side of the feed inlet. An inclined hopper is fixedly connected to the shielding cover. The bottom of the hopper passes through the shielding cover and extends to the feed inlet. A plate with ventilation holes is inserted into the bottom of the hopper. The plate is fixed to the shielding cover by a fixing pin.
[0009] The drive mechanism includes a motor fixed to the top of the frame, the output shaft of the motor being connected to a worm gear, a mounting cylinder fixed to one side of the drying cylinder, and a worm wheel meshing with the worm gear on the outer wall of the mounting cylinder;
[0010] The drying mechanism includes a filter box fixed to the top of the frame, a fan connected to the top of the filter box, a duct air heater fixedly connected to the air outlet of the fan, and a blower pipe fixedly installed at the air outlet of the duct air heater through a flange. One end of the blower pipe passes through the mounting cylinder and extends into the interior of the drying cylinder.
[0011] The inner wall of the drying cylinder is fixed with multiple sets of spiral guide blades, and a heat insulation cover is provided between the two sides of the frame to surround the drying cylinder.
[0012] As a further improvement to the above technical solution:
[0013] One end of the blower tube extending into the drying cylinder is fixedly connected to a blower box, and the air outlet end of the blower box is set at an angle downward.
[0014] A fixing frame is fixed to the surface of the frame, and a fixing shaft is provided on one side of the cover. The fixing frame limits the fixing shaft by a limiting pin.
[0015] An arc-shaped guide rail is fixed on one side of the heat insulation cover, and an arc-shaped slide rod that slides with the guide rail is provided on one side of the shielding cover.
[0016] The support wheel is made of polytetrafluoroethylene, and the drying cylinder is made of 304 stainless steel.
[0017] The filter box has a filter screen on its open side.
[0018] The guide vanes are evenly distributed along the inner circumference of the drying cylinder, and the spiral angle is 15°-30°.
[0019] The angle between the air outlet of the blower box and the horizontal direction is 30°-45°.
[0020] In this application, during use, the peppercorns to be dried are fed into the drying drum through the hopper. Then, the motor is started, and the motor drives the drying drum to rotate through the worm gear and worm wheel. The spiral guide vanes keep the peppercorns tumbling inside the drying drum. During drying, the fan is started to draw air to pre-dry the peppercorns. Then, the pipeline air heater is started to allow hot air to enter the drying drum and further dry the peppercorns. During the drying process, the insert plate is closed and then fixed with a fixing pin. The next batch of peppercorns to be dried is then placed into the hopper. This allows the peppercorns in the hopper to be pre-dried while the raw materials in the drying drum are being dried, reducing heat loss and improving drying efficiency. After drying, the limit pin is removed, the cover is opened, and the motor output shaft is reversed to allow the dried peppercorns to be discharged for easy use. Then, the raw materials are fed in again, and this process is repeated to dry the peppercorns.
[0021] Beneficial effects: In this utility model, the high-efficiency drying equipment for dried peppercorns is designed by installing a rotatable hopper at one end of the drying cylinder, so that the drying cylinder can pre-dry the next batch of peppercorns in the hopper during the drying process, thereby reducing heat loss and improving drying efficiency.
[0022] In this utility model, the high-efficiency drying equipment for dried peppercorns has a support wheel installed at the bottom of the drying cylinder. The support wheel contacts the bottom of the drying cylinder, thereby supporting the drying cylinder, facilitating the rotation of the drying cylinder, and improving the service life of the equipment.
[0023] In this invention, the drying cylinder can pre-dry the next batch of peppercorns in the hopper during the drying process, reducing heat loss and improving drying efficiency. At the same time, the support wheel contacts the bottom of the drying cylinder, thus providing support for the drying cylinder, facilitating its rotation, and extending the service life of the equipment. Attached Figure Description
[0024] Figure 1 This is a first-view three-dimensional structural diagram of a high-efficiency drying device for dried Sichuan peppercorns proposed in this utility model.
[0025] Figure 2 This is a second-view three-dimensional structural diagram of a high-efficiency drying device for dried Sichuan peppercorns proposed in this utility model.
[0026] Figure 3 This is a cross-sectional structural diagram of a high-efficiency drying device for dried Sichuan peppercorns proposed in this utility model.
[0027] In the diagram: 1. Frame; 2. Drying drum; 3. Insulation cover; 4. Support column; 5. Cover; 6. Hopper; 7. Guide rail; 8. Slide rod; 9. Motor; 10. Worm gear; 11. Worm wheel; 12. Filter box; 13. Fan; 14. Air duct; 15. Mounting cylinder; 16. Air box; 17. Support plate; 18. Support wheel; 19. Insert plate; 20. Ventilation hole; 21. Fixing pin; 22. Limiting pin; 23. Fixing frame; 24. Fixing shaft; 25. Guide vane; 26. Pipe-type air heater. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0029] Example 1, referring to Figures 1-3 A drying device includes: a frame 1, including a rectangular frame at the top, frame-shaped legs fixed at both ends of the rectangular frame, and two symmetrically arranged crossbeams fixed between the two legs, the crossbeams being arranged parallel to the long side of the rectangular frame at the top.
[0030] At least two support plates 17 are fixedly connected to the frame 1. Specifically, the two support plates 17 are fixedly installed on two symmetrically arranged crossbeams, and the two support plates 17 are arranged parallel to each other.
[0031] Support wheels 18 are fixedly installed on the top of both support plates 17. A drying cylinder 2 is set between the tops of multiple support wheels 18. It is made of 304 stainless steel (2mm thick). The support wheels 18 contact the drying cylinder 2 to support the drying cylinder 2, which facilitates the rotation of the drying cylinder and improves the service life of the equipment. The drying cylinder 2 is rotatably connected to the frame 1 by being set on the support wheels 18. A feed port is set at one end of the drying cylinder 2.
[0032] A cover 5 is provided at one end of the frame 1, including a support column 4 fixed to the top of the frame 1. The cover 5 is rotatably connected to the top of the support column 4. The cover 5 rotates horizontally on the top of the support column 4 to open and close the drying cylinder 2.
[0033] The shielding cover 5 is located on one side of the feed inlet. A hopper 6 is fixedly connected to one side of the shielding cover 5. The bottom of the hopper 6 is inclined and extends through the shielding cover 5 to one side of the feed inlet. An insert plate 19 is inserted into the bottom of the hopper 6 (where the hopper 6 and the shielding cover 5 are inserted). Multiple through ventilation holes 20 are opened on one side of the insert plate 19. A fixing pin 21 that passes through the shielding cover 5 is threadedly connected to one side of the insert plate 19. The fixing pin 21 is inserted into the shielding cover 5.
[0034] The next batch of peppercorns to be dried is put into the hopper 6, so that the peppercorns in the hopper 6 can be pre-dried while the raw materials in the drying cylinder 2 are being dried, thus reducing heat loss and improving drying efficiency.
[0035] A drive mechanism is provided on one side of the drying cylinder 2 to drive the drying cylinder 2 to rotate.
[0036] The drying mechanism is located on top of the frame 1 and is used to dry the raw materials.
[0037] This application can be used in the field of dried Sichuan pepper preparation, or in other fields applicable to this application.
[0038] Example 2, Reference Figures 1-3 Based on Example 1, an improved high-efficiency drying equipment for dried Sichuan peppercorns is applied to the field of dried Sichuan peppercorn preparation.
[0039] In this utility model, the driving mechanism includes a motor 9 and a mounting cylinder 15. The motor 9 is fixed on the top of the frame 1. One end of the output shaft of the motor 9 is fixedly connected to a worm gear 10. The mounting cylinder 15 is fixed on one side of the drying cylinder 2 and passes through the drying cylinder 2. A worm wheel 11 is fixedly connected to the outer wall of the mounting cylinder 15. The worm wheel 11 meshes with the worm gear 10. When the motor 9 is started, the motor 9 drives the drying cylinder 2 to rotate through the worm gear 10 and the worm wheel 11. The spiral guide blades 25 keep the peppercorns turning inside the drying cylinder 2.
[0040] In particular, the drying mechanism includes a filter box 12, which is fixed to one side of the frame 1. One side of the filter box 12 is open and equipped with a filter screen. A fan 13 is fixedly connected to the top of the filter box 12. The exhaust end of the fan 13 is fixedly connected to the filter box 12, and the exhaust end of the fan 13 is fixedly connected to a duct air heater 26. The air outlet of the duct air heater 26 is fixedly installed with a blower pipe 14 through a flange. One end of the blower pipe 14 passes through the mounting cylinder 15. During drying, the fan 13 is started, and the fan 13 draws air to preliminarily dry the peppercorns. Then, the duct air heater 26 is started. The hot air input by the fan 13 enters the drying cylinder 2 after being heated by the duct air heater 26, thereby drying the peppercorns. The duct air heater 26 is a commercially available product, which has its own temperature control unit and heater. Its structure will not be described in detail in this application.
[0041] It should be noted that multiple sets of evenly distributed guide blades 25 are fixedly connected to the inner circumference of the drying cylinder 2. The guide blades 25 are spirally arranged, which keeps the peppercorns turning inside the drying cylinder 2 and allows them to be easily discharged after reversing.
[0042] In this utility model, a heat insulation cover 3 is fixedly connected between the two sides of the frame 1, and the drying cylinder 2 is located inside the heat insulation cover 3. The heat insulation cover 3 provides heat preservation and reduces heat loss. The bottom of the heat insulation cover 3 is open.
[0043] In particular, one end of the blower tube 14 passes through the mounting tube 15 and is fixedly connected to the blower box 16. The air outlet end of the blower box 16 is set at an angle downward, and the blower box 16 can increase the air outlet area.
[0044] It should be noted that a fixing bracket 23 is fixedly connected to the surface of the frame 1, and a fixing shaft 24 is fixedly connected to one side of the cover 5. A limiting pin 22 for limiting the fixing shaft 24 is inserted into the surface of the fixing bracket 23. The fixing shaft 24 and the limiting pin 22 are used to fix the cover 5.
[0045] In this utility model, an arc-shaped guide rail 7 is fixedly connected to one side of the heat insulation cover 3, and an arc-shaped slide rod 8 is fixedly connected to one side of the shielding cover 5. The slide rod 8 is slidably connected to the guide rail 7. The stability of the shielding cover 5 rotation is increased by the cooperation between the slide rod 8 and the guide rail 7.
[0046] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 9, the fan 13 and the duct air heater 26 are commonplace and are all conventional methods or common knowledge, so they will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.
[0047] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.
[0048] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency drying device for dried Sichuan peppercorns, characterized in that, include: The frame (1) has two support plates (17) fixedly connected between its two sides. The top of each of the two support plates (17) is equipped with a support wheel (18). The top of the multiple support wheels (18) is provided with a rotatable drying cylinder (2). One end of the drying cylinder (2) is provided with a feed inlet. A shield (5) is rotatably connected to the bottom of the frame (1) via a support column (4) and located on one side of the feed inlet. The shield (5) is fixedly connected to an inclined hopper (6). The bottom of the hopper (6) passes through the shield (5) and extends to the feed inlet. A plate (19) with ventilation holes (20) is inserted into the bottom of the hopper (6). The plate (19) is fixed to the shield (5) by a fixing pin (21). The drive mechanism includes a motor (9) fixed to the top of the frame (1), the output shaft of the motor (9) is connected to a worm (10), and a mounting cylinder (15) is fixed on one side of the drying cylinder (2). The outer wall of the mounting cylinder (15) is provided with a worm wheel (11) that meshes with the worm (10). The drying mechanism includes a filter box (12) fixed to the top of the frame (1), a fan (13) connected to the top of the filter box (12), a pipe-type air heater (26) fixedly connected to the air outlet of the fan (13), and a blower pipe (14) fixedly installed at the air outlet of the pipe-type air heater (26) through a flange. One end of the blower pipe (14) passes through the mounting cylinder (15) and extends into the drying cylinder (2). The inner wall of the drying cylinder (2) is fixed with multiple sets of spiral guide blades (25), and a heat insulation cover (3) is provided between the two sides of the frame (1) to surround the drying cylinder (2).
2. The high-efficiency drying equipment for dried Sichuan peppercorns according to claim 1, characterized in that, One end of the blower pipe (14) extending into the drying cylinder (2) is fixedly connected to a blower box (16), and the air outlet end of the blower box (16) is set obliquely downward.
3. The high-efficiency drying equipment for dried Sichuan peppercorns according to claim 1, characterized in that, The frame (1) is fixed with a fixing frame (23), and the cover (5) is provided with a fixing shaft (24) on one side. The fixing frame (23) limits the fixing shaft (24) by a limiting pin (22).
4. The high-efficiency drying equipment for dried Sichuan peppercorns according to claim 1, characterized in that, The heat insulation cover (3) is fixed with an arc-shaped guide rail (7) on one side, and the shielding cover (5) is provided with an arc-shaped slide rod (8) that slides with the guide rail (7) on one side.
5. The high-efficiency drying equipment for dried Sichuan peppercorns according to any one of claims 1 to 4, characterized in that, The support wheel (18) is made of polytetrafluoroethylene, and the drying cylinder (2) is made of 304 stainless steel.
6. The high-efficiency drying equipment for dried Sichuan peppercorns according to claim 1, characterized in that, The filter box (12) has a filter screen on its open side.
7. The high-efficiency drying equipment for dried Sichuan peppercorns according to claim 1, characterized in that, The guide vanes (25) are evenly distributed along the inner circumference of the drying cylinder (2), and the spiral angle is 15°-30°.
8. The high-efficiency drying equipment for dried Sichuan peppercorns according to claim 2, characterized in that, The air outlet of the blower box (16) has an angle of 30°-45° with the horizontal direction.