A zanthoxylum drying device
By designing a pepper drying device with a greenhouse frame, enclosure structure, and ventilation components, the problems of food hygiene in open-air drying and unstable baking in a drying room were solved, achieving efficient and low-cost production of dried peppers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 李章华
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, open-air sun-drying presents food hygiene problems, while baking in a drying room results in unstable quality and high costs, making it difficult to control the color and internal quality consistency of dried peppercorns.
A pepper drying device was designed, which includes a greenhouse frame, enclosure structure, drying rack and ventilation components. The device uses transparent plastic film enclosure and axial flow fan to control the humidity inside the greenhouse, so as to achieve efficient drying.
It improves drying efficiency and the yield of high-quality dried peppercorns, reduces labor demand and production costs, ensures the consistency of color and internal quality of dried peppercorns, and has a long service life.
Smart Images

Figure CN224482936U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pepper drying technology, and in particular to a pepper drying device. Background Technology
[0002] The areas where Sichuan pepper is grown all belong to the North Latitude Plateau Continental Monsoon Climate type, with typical plateau monsoon three-dimensional climate characteristics, distinct dry and wet seasons, concentrated and intense rainfall during the rainy season, and insufficient rainfall during the dry season; and the best harvest season for Sichuan pepper (July to September) is precisely the period of concentrated rainfall and high temperature in this region; once Sichuan pepper comes into contact with rainwater during the drying process, the finished product will darken in color, or even turn black; directly resulting in its price being only about one-quarter of that of the superior color.
[0003] Currently, the majority of people dry their peppercorns in the open air. Due to the special climate, a considerable number of people wash fresh peppercorns with NaCO3 solution before drying them; this makes them dry faster and gives them a better color, but it also causes serious food contamination. Some people also use (electric or wood) roasting methods, but most people find it difficult to control the timing of matching the moisture content of fresh peppercorns with the roasting temperature, making it difficult to control the consistency of the color, opening, and internal quality of the dried peppercorns after roasting. Moreover, building a large number of roasting rooms is costly, resulting in a significant negative return on investment.
[0004] Therefore, a device for drying Sichuan peppercorns is proposed. Utility Model Content
[0005] The purpose of this utility model is to solve the food hygiene problems associated with open-air drying and the problems of unstable quality and high cost of drying in a drying room. This utility model provides a pepper drying device.
[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0007] A pepper drying device includes a greenhouse frame, an enclosure structure, drying racks, and ventilation components. Multiple drying racks are arranged in a linear array inside the greenhouse frame, and the ventilation components are distributed in several groups inside the greenhouse frame.
[0008] The greenhouse frame includes several pipe piles arranged around the perimeter, vertical columns inserted and fixed to the upper end of the pipe piles, parabolic arches connecting the upper ends of adjacent columns, and tie rods fixed to the upper and lower sides inside the greenhouse frame.
[0009] The enclosure structure includes a steel channel that surrounds and is fixed around the outside of the greenhouse frame and a transparent plastic film covering the outside of the greenhouse frame. The edges of the transparent plastic film are fixed by spring clips that are snapped into the steel channel.
[0010] The drying rack is installed inside the greenhouse frame. The drying rack includes four uprights and reinforcing round tubes connecting the uprights. Several connectors are provided on the uprights. The reinforcing round tubes are inserted and fixed to the connectors. A drying net is stretched between the reinforcing round tubes. The drying net is fixed to the reinforcing round tubes by cable ties.
[0011] Each ventilation assembly includes a movable support and an axial flow fan mounted on top of the movable support. The axial flow fan is provided with triangular plates on both the front and rear sides, and the triangular plates are fixed to the top surface of the movable support.
[0012] As an improvement, doors are provided on both the front and rear side enclosure structures of the greenhouse frame.
[0013] As an improvement, fixed angle irons are welded to the inner corners of the greenhouse frame, and the two ends of the tie rod are respectively fixed to the corresponding fixed angle irons.
[0014] As an improvement, the two ends of the parabolic arch are bent downward to form insertion ends, and a steel sleeve is fixed at the insertion ends, with the upper end of the column inserted and fixed inside the steel sleeve.
[0015] As an improvement, the movable support includes an upper frame and a lower frame, both of which have a square outline; guide posts are fixed at the four corners of the upper frame, and guide sleeves that cooperate with the guide posts are fixed at the four corners of the lower frame. The guide posts are slidably inserted into the corresponding guide sleeves. The guide sleeves of the lower frame are provided with height adjustment knobs for locking the upper frame, and several self-locking casters are provided under the lower frame.
[0016] The beneficial effects of this utility model are as follows:
[0017] (1) Improved drying efficiency: Compared with conventional drying, the drying cycle is shortened and the utilization rate of the drying field is improved. Compared with the baking equipment for drying the same weight of fresh peppercorns, the production cycle is improved and labor is saved.
[0018] (2) Improved rate of high-quality Sichuan pepper (dried): Compared with traditional sun-drying and baking, the opening rate and the rate of high-quality color of Sichuan pepper have both increased year-on-year on average;
[0019] (3) Under the premise of the same quality requirements of dried peppercorns, it is easy to operate, easy to store and preserve, has a long service life (generally more than 8 years), low depreciation rate, and wide application.
[0020] (4) High input and output: This utility model has low input and maintenance costs but long service life when drying (baking) the same weight of fresh peppercorns. It does not require various baking materials (coal, wood or baking electricity) during the drying process. The quality of the dried green peppercorns is the same as that of naturally dried peppercorns, and the internal quality is high. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of this utility model;
[0022] Figure 2 This is a schematic diagram of a new type of practical drying rack;
[0023] Figure 3 This is a schematic diagram of a novel practical ventilation component;
[0024] Figure 4 This is a schematic diagram of the greenhouse frame of this utility model;
[0025] Figure 5 This is a partial structural diagram of the greenhouse frame of this utility model.
[0026] Attached reference numerals: 1. Greenhouse frame; 2. Enclosure structure; 3. Drying rack; 4. Ventilation assembly; 10. Pipe pile; 11. Column; 12. Arch frame; 13. Tie rod; 14. Fixed angle iron; 15. Steel sleeve; 20. Steel channel; 21. Transparent plastic film; 22. Spring clip; 30. Upright pole; 31. Fixed round pipe; 32. Drying net; 40. Movable support; 41. Axial flow fan; 410. Triangular plate; 401. Upper frame; 402. Lower frame; 403. Guide column; 404. Guide sleeve; 405. Height adjustment knob; 406. Self-locking caster wheel. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0029] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0030] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] Reference Figure 1-5 A pepper drying device, wherein galvanized steel pipe piles 10 are vertically installed every 2m on both sides of the drying yard (roof plane). One pipe pile 10 of the same specification is added 1m away from the center point of each end of the drying yard in the longitudinal direction for the installation of the shed door. Galvanized steel pipe piles 10 are set vertically every 2m along the horizontal direction of the shed door. Galvanized columns 11 are vertically inserted into the upper end of each pipe pile 10. The columns 11 on the front and rear sides extend upward and are fixedly connected to the arch frame 12. The columns 11 are welded with horizontal fixing angle iron 14 with M4 screw holes in the direction parallel to the long side of the drying yard. U-shaped channel steel is welded on the outside of the columns 11. Galvanized steel pipes are bent into parabolic arch frames 12. The arch frames 12 are bent into straight sections 100mm from both ends and welded with steel sleeves 15. During installation, the upper end of the column 11 is inserted into the steel sleeve 15 for fixation. The tie rod 13 is bent at an 89°-90° angle 100mm from both ends. M4 screw holes are opened at 60mm from both ends. The two ends of the tie rod 13 are fixed to the fixing angle iron 14 with screws.
[0032] The top membrane is made of 0.6mm transparent plastic film 21, and the surrounding membrane is made of 0.8mm plastic film 21. The plastic film 21 is made of PO film with good light transmittance. The edge of the film is embedded in the U-shaped channel steel of the column 11 and locked by spring clips 22 (M4 screws can be used for fixing in windy areas).
[0033] Several drying racks 3 are arranged in a linear array inside the greenhouse. The frame structure uses stainless steel uprights 30 with a height of 1500mm. Each upright 30 has welded connectors at heights of 500mm and 1500mm. The racks are fixed horizontally by 1750mm long reinforcing round tubes 31 and vertically by 950mm long reinforcing round tubes 31. M4 screws are used for reinforcement if necessary. The mesh of the upper and lower layers of mesh is spaced 1000mm apart. The bottom layer is 500mm from the ground and uses 304 stainless steel mesh with a wire diameter of 1mm and a mesh size of 2mm×2mm. The mesh is fixed to the reinforcing round tubes 31 with stainless steel cable ties.
[0034] Two sets of ventilation components are set at the shed door. The bracket includes a 1300mm×1300mm upper frame 401 and a lower frame 402. Guide posts 403 are set at the four corners and slide with guide sleeves 404. The guide sleeves 404 are equipped with height adjustment knobs 405. Self-locking casters 406 are installed at the bottom of the lower frame 402.
[0035] Fan installation: A 50-200W axial flow fan 41 is fixed to the top of the upper frame 401, and triangular plates are welded to the front and rear sides for reinforcement 410. The operation of the axial flow fan 41 reduces the humidity inside the shed and shortens the drying time.
[0036] When using, spread fresh Sichuan peppercorns (including small branches and a few leaves) evenly on the mesh, with a thickness of ≤20cm, and start the axial flow fan 41 to continuously exhaust moisture and air.
Claims
1. A device for drying Sichuan peppercorns, characterized in that, It includes a greenhouse frame (1), an enclosure structure (2), drying racks (3), and ventilation components (4). Multiple drying racks (3) are arranged in a linear array inside the greenhouse frame (1), and the ventilation components (4) are distributed in several groups inside the greenhouse frame (1). The greenhouse frame (1) includes several pipe piles (10) arranged around the perimeter, columns (11) vertically inserted and fixed to the upper end of the pipe piles (10), parabolic arch frame (12) connecting the upper ends of adjacent columns (11), and tie rods (13) fixed to the upper and lower sides inside the greenhouse frame (1). The enclosure structure (2) includes a steel channel (20) that surrounds and is fixed around the outside of the greenhouse frame (1) and a transparent plastic film (21) covering the outside of the greenhouse frame (1). The edge of the transparent plastic film (21) is fixed by spring clips (22) that are snapped into the steel channel (20). The drying rack (3) is set inside the greenhouse frame (1). The drying rack (3) includes four uprights (30) and reinforcing round tubes (31) connected between the uprights (30). The uprights (30) are provided with several connectors. The reinforcing round tubes (31) are inserted and fixed to the connectors. A drying net (32) is stretched between the reinforcing round tubes (31). The drying net (32) is fixed to the reinforcing round tubes (31) by cable ties. Each ventilation assembly (4) includes a movable support (40) and an axial flow fan (41) installed on the top of the movable support (40). The axial flow fan (41) is provided with triangular plates (410) on both the front and rear sides, and the triangular plates (410) are fixed to the top surface of the movable support (40).
2. The pepper drying device according to claim 1, characterized in that, The greenhouse frame (1) has doors on both the front and rear side enclosure structures (2).
3. The pepper drying device according to claim 1, characterized in that, Fixed angle irons (14) are welded to the inner corners of the greenhouse frame (1), and the two ends of the tie rod (13) are respectively fixed to the corresponding fixed angle irons (14).
4. The pepper drying device according to claim 1, characterized in that, The two ends of the arch frame (12) are bent downward to form insertion ends, and a steel sleeve (15) is fixed at the insertion ends. The upper end of the column (11) is inserted and fixed inside the steel sleeve (15).
5. The pepper drying device according to claim 1, characterized in that, The movable support (40) includes an upper frame (401) and a lower frame (402), both of which have a square outline. Guide posts (403) are fixed at the four corners of the upper frame (401), and guide sleeves (404) that cooperate with the guide posts (403) are fixed at the four corners of the lower frame (402). The guide posts (403) are slidably inserted into the corresponding guide sleeves (404). The guide sleeves (404) of the lower frame (402) are provided with height adjustment knobs (405) for locking the upper frame (401). Several self-locking casters (406) are provided under the lower frame (402).