Tea stalk drying machine

Abstract

The utility model relates to the technical field of tea production equipment, and discloses a tea stalk dryer which comprises a rack, a supporting plate and a rotating shaft, the top of the rack is connected with a fan, one end of the fan is communicated with an air inlet pipe, the other end of the fan is communicated with an air outlet pipe, one end of the air outlet pipe is communicated with a reaction box, and the other end of the reaction box is communicated with an air outlet pipe. A drying plate is connected to the bottom of the inner wall of the reaction box, an activated carbon plate is fixedly connected to the bottom of the inner wall of the reaction box, a clamping groove is formed in the top of the outer wall of the reaction box, and a sealing strip is fixedly connected to the top of the outer wall of the clamping groove. In the utility model, the fan on the left side of the equipment starts a working period, the air inlet pipe which is in closed connection synchronously absorbs damp and hot air and guides the damp and hot air to the air inlet end of the fan for pressurization and acceleration, dry air circularly flows back to the drying box through the exhaust pipe on the front wall of the reaction box, and a dynamic circulating drying system is formed by means of airflow multi-stage purification and a closed-loop circulating mechanism. The material dehydration efficiency is improved, and the heating uniformity is optimized.

Description

Technical Field

[0001] This utility model relates to the technical field of tea production equipment, and in particular to a tea stem dryer. Background Technology

[0002] Tea stems are the stalks produced during tea processing. They contain natural aromatic substances and coarse fibers. Traditional processes often discard them, but modern research has found that they can be used to make tea pillow fillings, which also have the functions of absorbing moisture and removing odors. Traditional sun-drying of tea stems is easily affected by environmental humidity, leading to mold and loss of aroma. Tea stem dryers use precise temperature and humidity control technology to quickly remove moisture while retaining effective components, significantly improving raw material utilization and product stability.

[0003] Traditional tea stem drying mainly relies on natural sun-drying or direct hot air blowing to complete dehydration. Its operating principle is to continuously heat the tea stems with an external heat source and use hot air to remove the internal moisture. During the process, manual turning is required to ensure even heating. Traditional methods have long drying cycles, low temperature and humidity control precision, high energy consumption, and are significantly affected by weather conditions, making it easy for tea stems to char or dry unevenly.

[0004] Existing tea stem drying boxes use electric heating tubes and microwave generators as heat sources, combined with timed turning devices and temperature control modules. The drying temperature and time are adjusted by setting programs to improve the degree of automation. At the same time, a layered tray structure is used to expand the heating area and reduce manual intervention. However, in actual use, the above devices have uneven heat source distribution, resulting in low overall drying efficiency and still failing to meet the needs of large-scale production. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a tea stem drying machine, which aims to improve the problem of low drying efficiency of tea stems in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a tea stem dryer, comprising a frame, a support plate, and a rotating shaft. A fan is fixedly connected to the top of the frame, one end of the fan is connected to an air inlet pipe, and the other end of the fan is connected to an air outlet pipe. One end of the air outlet pipe is connected to a reaction box. A drying plate is fixedly connected to the bottom of the inner wall of the reaction box, and an activated carbon plate is fixedly connected to the bottom of the inner wall of the reaction box. A locking groove is provided on the top of the outer wall of the reaction box, and a sealing strip is fixedly connected to the top of the outer wall of the locking groove. A box cover is fixedly connected to the top of the outer wall of the sealing strip. An exhaust pipe is connected to the rear side of the outer wall of the reaction box. A corrosion-resistant quick-release mechanism is fixedly connected to the bottom of the inner wall of the frame, which facilitates the disassembly of internal components.

[0007] As a further description of the above technical solution:

[0008] The corrosion-resistant quick-release mechanism includes an inner rod, the top of the outer wall of the inner rod is fixedly connected to the bottom of the outer wall of the rotating shaft, an embedded strip is fixedly connected to the outer wall of the inner rod, an embedded groove is fixedly connected to the outer wall of the embedded strip, a wear-resistant layer is fixedly connected to the inner wall of the embedded strip, and an alloy layer is fixedly connected to the inner wall of the wear-resistant layer.

[0009] As a further description of the above technical solution:

[0010] A door is rotatably connected to the front side of the outer wall of the frame, and a viewing window is fixedly connected to the front side of the outer wall of the door.

[0011] As a further description of the above technical solution:

[0012] A handle is fixedly connected to the front side of the outer wall of the box door, and a silicone pad is fixedly connected to the outer wall of the handle.

[0013] As a further description of the above technical solution:

[0014] A controller is fixedly connected to the front side of the outer wall of the rack, and a display screen is fixedly connected to the front side of the outer wall of the rack.

[0015] As a further description of the above technical solution:

[0016] The frame has pulleys fixedly connected to the four corners of the bottom of the outer wall, and brake pads are fixedly connected to the top of the pulleys.

[0017] As a further description of the above technical solution:

[0018] A support rod is fixedly connected to the bottom of the outer wall of the support plate, and a rubber pad is fixedly connected to the bottom of the outer wall of the support rod.

[0019] As a further description of the above technical solution:

[0020] A protective railing is fixedly connected to the top of the outer wall of the frame, and the surface of the protective railing is rounded.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when the fan on the left side of the equipment starts working, the sealed air inlet pipe simultaneously draws in the hot and humid gas and guides it to the air inlet end of the fan for pressurization and acceleration. The treated high-pressure airflow is precisely introduced into the reaction box cavity through the air outlet pipe. The dry gas is circulated back to the drying box through the exhaust pipe on the front wall of the reaction box. With the help of the multi-stage airflow purification and closed-loop circulation mechanism, a dynamic circulation drying system is formed, which realizes the improvement of material dehydration efficiency and optimization of heating uniformity.

[0023] 2. In this utility model, the outer wall of the rotating shaft is fixed to the inner rod by a rigid connection. Three embedded strips are evenly distributed on the side of the inner rod, which correspond precisely to the standard slots of the embedded grooves. The quick disassembly and assembly structure is realized by axial positioning and vertical insertion and removal operations. In order to enhance the stability of the component in a humid and hot environment, the quick disassembly mechanism has a composite wear-resistant layer and an alloy layer inside. The wear-resistant layer uses silicon carbide composite material to cover the friction interface, and the alloy layer strengthens the rigidity of the substrate through titanium alloy coating technology. The dual structure protection effectively improves corrosion resistance and overall strength, ensuring that the mechanism maintains a high-efficiency and reliable state during continuous operation. Attached Figure Description

[0024] Figure 1 This is a perspective view of a tea stem drying machine proposed in this utility model;

[0025] Figure 2 This is a side view of a tea stem drying machine proposed in this utility model;

[0026] Figure 3 This is a partial view of a tea stem drying machine according to the present invention;

[0027] Figure 4 This is an exploded view of the generating box of a tea stem dryer according to the present invention;

[0028] Figure 5 This is a split view of the corrosion-resistant quick-release mechanism of a tea stem dryer proposed in this utility model;

[0029] Figure 6 This is a cross-sectional view of the inner rod of a tea stem dryer proposed in this utility model.

[0030] Legend:

[0031] 1. Frame; 2. Corrosion-resistant quick-release mechanism; 201. Inner rod; 202. Embedded strip; 203. Embedded groove; 204. Wear-resistant layer; 205. Alloy layer; 3. Fan; 4. Air inlet pipe; 5. Air outlet pipe; 6. Exhaust pipe; 7. Reaction box; 8. Box cover; 9. Locking groove; 10. Sealing strip; 11. Drying plate; 12. Activated carbon plate; 13. Rotating shaft; 14. Box door; 15. Handle; 16. Silicone pad; 17. Viewing window; 18. Controller; 19. Brake pad; 20. Pulley; 21. Rubber pad; 22. Support rod; 23. Guardrail; 24. Support plate; 25. Display screen. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a tea stem dryer, comprising a frame 1, a support plate 24, and a rotating shaft 13. The frame 1 is the main frame supporting and fixing the overall structure of the equipment. A fan 3 is fixedly connected to the top of the frame 1. The fan 3 is a device for driving airflow to accelerate the drying or ventilation process. One end of the fan 3 is connected to an air inlet pipe 4, which guides air from inside the drying chamber into the equipment. The other end of the fan 3 is connected to an air outlet pipe 5. One end of the air outlet pipe 5 is connected to a reaction box 7. A drying plate 11 is fixedly connected to the bottom of the inner wall of the reaction box 7. The air outlet pipe 5... Air is exhausted from inside the equipment into reaction chamber 7, which is a closed container for holding dry materials to absorb moisture. An activated carbon plate 12 is fixedly connected to the bottom of the inner wall of reaction chamber 7. The activated carbon plate 12 is a functional plate for adsorbing odors and harmful gases. A locking groove 9 is formed on the top of the outer wall of reaction chamber 7, and a sealing strip 10 is fixedly connected to the top of the outer wall of locking groove 9. The locking groove 9 and the sealing strip 10 cooperate to form a tightly closed groove structure. A cover 8 is fixedly connected to the top of the outer wall of sealing strip 10. Sealing strip 10 ensures the airtightness of reaction chamber 7 and prevents heat leakage. An exhaust pipe is connected to the rear side of the outer wall of reaction chamber 7. 6. The exhaust duct 6 discharges the dried hot air into the drying oven. A corrosion-resistant quick-release mechanism 2 is fixedly connected to the bottom of the inner wall of the frame 1, facilitating the disassembly of internal components. A door 14 is rotatably connected to the front of the outer wall of the frame 1. The door 14 provides access to the equipment while maintaining a sealed position. A viewing window 17 is fixedly connected to the front of the outer wall of the door 14; this transparent window allows observation of the drying oven's internal working status. A handle 15 is fixedly connected to the front of the outer wall of the door 14; this handle 15 is a gripping component for easily opening and closing the door 14. A silicone pad 16 is fixedly connected to the frame 1. The silicone pad 16 is an anti-slip pad that increases friction and reduces hand discomfort. A controller 18 is fixedly connected to the front of the outer wall of the frame 1. The controller 18 is a control panel for adjusting temperature and time parameters. A display screen 25 is fixedly connected to the front of the outer wall of the frame 1. The display screen 25 is a screen that displays temperature and time operation information in real time. Pulleys 20 are fixedly connected to the four corners at the bottom of the outer wall of the frame 1. The pulleys 20 are rolling wheel sets that facilitate the movement of the equipment. A brake pad 19 is fixedly connected to the top of the pulley 20. The brake pad 19 is a braking device that controls the movement or fixation of the pulley 20.

[0034] Specifically, the frame 1 serves as the main framework supporting and fixing the overall structure of the equipment. A fan 3 is installed on its top, its core function being to drive airflow to accelerate the drying or ventilation process. One end of the fan 3 connects to the inside of the equipment via an air inlet pipe 4, which serves as the core channel guiding external air into the drying chamber. The other end is directly connected to an air outlet pipe 5, which extends into the reaction chamber 7. The reaction chamber 7, as a closed container, holds the drying material to absorb moisture. A drying plate 11 is fixedly installed on the bottom of its inner wall. This structure adsorbs water vapor through its porous nature. Simultaneously, an activated carbon plate 12 is also configured on the bottom of the inner wall of the reaction chamber 7. The activated carbon plate 12, with its high specific surface area, achieves efficient adsorption of odors and harmful gases. The reaction chamber 7 has a locking groove 9 on the top of its outer wall, with a sealing strip 10 fixed above it. The locking groove 9 and the sealing strip 10 work together to form a tight seal. The top of the sealing strip 10 is connected to the cover 8. Together, they ensure the airtightness of the reaction chamber 7, preventing hot air leakage. The rear outer wall of the reaction chamber 7 is connected to an exhaust pipe 6, which directionally delivers the dried hot air into the drying chamber. The bottom of the frame 1 integrates a corrosion-resistant quick-release mechanism 2. Its corrosion-resistant material and modular design facilitate rapid maintenance and replacement of internal components. The front outer wall of the frame 1 is hinged to a door 14. The door 14 serves as an isolation interface between the main body of the equipment and the external environment, providing a material access channel while maintaining an internal sealed environment. A viewing window 17 is embedded in the front outer wall, allowing the operator to monitor the drying oven's operating status in real time. A handle 15 is also installed on the front of the door 14, serving as an ergonomic grip to simplify the opening and closing process. Its surface is covered with a silicone pad 16, which effectively increases friction and reduces hand pressure during operation. A controller 18 is located on the front outer wall of the frame 1; this integrated control panel supports precise adjustment of temperature and time parameters. A display screen 25 is installed in the adjacent area, serving as a human-machine interface to provide real-time feedback on operating parameters such as temperature and time. Casters 20 are fixed at the four corners of the bottom of the frame 1. The casters 20, through a rolling structure, provide overall mobility to the equipment, and each caster 20 is equipped with a brake pad on its top. 19. Brake pads 19 allow for free switching between moving and stationary states of the equipment through friction adjustment. Rubber pads 21 are installed at the ends of the bottom support rods 22 of the frame 1. The rubber material has both cushioning and anti-slip functions to improve the stability of the equipment placement. The top of the support rods 22 supports the support plate 24. This platform is specifically used to fix the fan 3 and ensure its operational stability. The side walls of the frame 1 are surrounded by guardrails 23. The guardrails 23 reduce the safety risk of personnel accidentally touching high-temperature components through physical barriers. The rotating shaft 13 runs through the center of the drying chamber. The rotating shaft 13 promotes uniform heating of the dried objects through uniform rotation. All functional modules are systematically integrated to form a complete drying system, meeting the diversified needs of efficient dehydration and heat treatment in industrial scenarios.

[0035] Reference Figure 1 , Figure 5 and Figure 6 An embodiment of this utility model provides: the corrosion-resistant quick-release mechanism 2 includes an inner rod 201, the top of the outer wall of the inner rod 201 is fixedly connected to the bottom of the outer wall of the rotating shaft 13, and an embedded strip 202 is fixedly connected to the outer wall of the inner rod 201. The inner rod 201 is a rod used to fix the embedded strip 202. The embedded strip 202 is used to facilitate fixing with its matching slot. An embedded groove 203 is fixedly connected to the outer wall of the embedded strip 202. The embedded groove 203 is used in conjunction with the embedded strip 202 to achieve a quick-release effect. A wear-resistant layer 204 is fixedly connected to the inner wall of the embedded strip 202. The wear-resistant layer 204 is a material covering the easily worn surface to extend the service life of the component. An alloy layer 205 is fixedly connected to the inner wall of the wear-resistant layer 204. The alloy layer 205 enhances the strength or corrosion resistance of the component through an alloy coating.

[0036] Specifically, the top of the outer wall of the inner rod 201 is integrated into the bottom of the outer wall of the rotating shaft 13. Its main structure outer wall is rigidly connected to the embedded strip 202. The inner rod 201, as a support, undertakes the core function of fixing the embedded strip 202. The embedded strip 202 is adapted to the matching slot through a special geometric design to ensure that the two can be quickly locked or separated. The outer wall of the embedded strip 202 and the embedded groove 203 form a physical contact surface. The embedded groove 203, as a complementary structure to match the embedded strip 202, achieves efficient disassembly and assembly through a sliding rail interlocking mechanism. The inner wall surface of the embedded strip 202 is covered with a wear-resistant layer 204. This layer is made of high-hardness composite material and acts directly on the wear-prone areas to reduce friction loss. The inner side of the wear-resistant layer 204 is tightly bonded to the alloy layer 205. The alloy layer 205 forms a dense metal coating through a high-temperature cladding process, which significantly improves the overall mechanical strength and chemical corrosion resistance of the component. The entire structure takes into account stability and ease of maintenance through modular design.

[0037] Reference Figure 1 and Figure 2 In one embodiment of this utility model: a support rod 22 is fixedly connected to the bottom of the outer wall of the support plate 24. The support plate 24 is a flat plate structure for fixing and supporting the fan 3. A rubber pad 21 is fixedly connected to the bottom of the outer wall of the support rod 22. The support rod 22 is a rigid rod that supports the equipment components. A guardrail 23 is fixedly connected to the top of the outer wall of the frame 1. The guardrail 23 is a fence structure to prevent people or objects from accidentally contacting the dangerous area. The surface of the guardrail 23 is rounded.

[0038] Specifically, the bottom outer wall of the support plate 24 is rigidly connected to the support rod 22. The support plate 24 serves as a horizontal support platform specifically for fixing the fan 3 and maintaining its working stability. A rubber pad 21 is installed at the bottom end of the support rod 22. The rubber pad 21 achieves buffering and shock absorption between the equipment and the contact surface through its elastic deformation characteristics. The support rod 22 serves as a vertical load-bearing component to provide structural stability for the main body of the equipment. The top outer wall of the frame 1 integrates a protective railing 23. The protective railing 23 isolates potential dangerous areas during equipment operation through a fence-like design. The edges of its frame are rounded to avoid scratch injuries during personnel operation. The entire set of components achieves a unity of functionality and safety protection through mechanical optimization.

[0039] Working principle: First, the fan 3 located on the left side of the equipment starts the operation process. The air inlet pipe 4, which is airtightly connected to the drying box, simultaneously draws in the humid warm air and introduces it into the air inlet of the fan 3 for pressurization. The pressurized airflow is then directed to the inside of the reaction box 7 through the air outlet pipe 5 connected to the end of the fan 3. In the sealed environment of the reaction box 7, the gas continuously flows through the composite purification layer composed of the drying plate 11 and the activated carbon plate 12. The moisture-absorbing medium filled inside the drying plate 11 can efficiently adsorb the moisture and volatile organic compounds in the gas. The activated carbon plate 12 has porous activated carbon material built in it to deeply filter residual odor molecules. The gas that has completed dehumidification and deodorization is returned to the inside of the drying box through the exhaust pipe 6 connected to the front side wall of the reaction box 7. Through the multi-stage treatment mechanism of the circulating airflow, a dynamic accelerated drying path is constructed, which significantly improves the material dehydration rate and heat exchange uniformity.

[0040] Furthermore, the outer wall of the rotating shaft 13 integrates the inner rod 201 through a rigid connection. Three embedded strips 202 are geometrically distributed on the side wall surface of the inner rod 201, which precisely match the three standard slots of the embedded groove 203. The modular quick assembly and disassembly function is realized through axial alignment and vertical insertion and removal. To improve the durability of the components in high temperature and high humidity environments, the corrosion-resistant quick-release mechanism 2 integrates a wear-resistant layer 204 and an alloy layer 205. The wear-resistant layer 204 uses silicon carbide composite material to cover the easily worn interface, and the alloy layer 205 strengthens the substrate structure through titanium alloy plating process. The double composite protection significantly improves the corrosion resistance and mechanical strength, ensuring that the mechanism maintains stable performance during long-term cyclic use.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tea stem drying machine comprising a frame (1), a support plate (24) and a rotating shaft (13), characterized in that: The top of the rack (1) is fixedly connected with a fan (3), one end of the fan (3) is communicated with an air inlet pipe (4), the other end of the fan (3) is communicated with an air outlet pipe (5), one end of the air outlet pipe (5) is communicated with a reaction box (7), the inner wall bottom of the reaction box (7) is fixedly connected with a drying plate (11), the inner wall bottom of the reaction box (7) is fixedly connected with an activated carbon plate (12), a clamping groove (9) is formed in the top of the outer wall of the reaction box (7), the top of the outer wall of the clamping groove (9) is fixedly connected with a sealing strip (10), the top of the outer wall of the sealing strip (10) is fixedly connected with a box cover (8), the outer wall rear side of the reaction box (7) is communicated with an exhaust pipe (6), the inner wall bottom of the rack is fixedly connected with a corrosion-resistant quick-release mechanism (2), the corrosion-resistant quick-release mechanism (2) facilitates the disassembly of the internal components.

2. A tea stem drier as claimed in claim 1, wherein: The corrosion-resistant quick-release mechanism (2) comprises an inner rod (201), the outer wall top of the inner rod (201) is fixedly connected to the outer wall bottom of a rotating shaft (13), the outer wall of the inner rod (201) is fixedly connected with an embedded strip (202), the outer wall of the embedded strip (202) is fixedly connected with an embedded groove (203), the inner wall of the embedded strip (202) is fixedly connected with a wear-resistant layer (204), the inner wall of the wear-resistant layer (204) is fixedly connected with an alloy layer (205).

3. A tea stem drier as claimed in claim 1, wherein: The outer wall front side of the rack (1) is rotatably connected with a box door (14), the outer wall front side of the box door (14) is fixedly connected with a viewing window (17).

4. A tea stem drier as claimed in claim 3, wherein: The outer wall front side of the box door (14) is fixedly connected with a handle (15), the outer wall of the handle (15) is fixedly connected with a silica gel pad (16).

5. A tea stem drier as claimed in claim 1, wherein: The outer wall front side of the rack (1) is fixedly connected with a controller (18), the outer wall front side of the rack (1) is fixedly connected with a display screen (25).

6. A tea stem drier as claimed in claim 1, wherein: The outer wall bottom of the rack (1) is fixedly connected with a pulley (20), the top of the pulley (20) is fixedly connected with a brake pad (19).

7. A tea stem drier as claimed in claim 1, wherein: The outer wall bottom of the support plate (24) is fixedly connected with a support rod (22), the outer wall bottom of the support rod (22) is fixedly connected with a rubber pad (21).

8. A tea stem drier as claimed in claim 1, wherein: The outer wall top of the rack (1) is fixedly connected with a protective fence (23), the surface of the protective fence (23) is treated with a smooth surface.

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