Tea leaf steam fixation machine
By improving the structural design of the tea steam fixation machine, uniform steam penetration and rapid cooling were achieved, solving the problem of localized overheating of tea leaves, improving the efficiency and quality of tea fixation, and saving energy and reducing emissions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING YONGHU TEA CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-03
Smart Images
Figure CN224440273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of tea processing equipment, and in particular to a tea steam fixation machine. Background Technology
[0002] A tea steam fixation machine is a device used for fixing tea leaves. It uses steam to quickly penetrate the tea leaves and destroy the activity of oxidases. It has the characteristics of high fixation efficiency and good preservation of the color and nutrients of tea leaves. It is suitable for the initial processing of green tea, some oolong teas, and other teas, and is a commonly used piece of equipment in modern tea processing.
[0003] The tea steam fixation machine generates high-temperature steam through a steam generator, and the steam is evenly sprayed into the fixation chamber through pipes. The high-temperature steam quickly penetrates the tea leaves, causing the oxidases to be deactivated rapidly and inhibiting the enzymatic oxidation of the tea leaves. At the same time, the moist heat of the steam softens the tea leaf tissue, laying the foundation for subsequent processing steps such as rolling.
[0004] In existing technologies, some tea steam fixation machines use a direct-injection steam structure, where steam is directly injected into the fixation chamber through pipes. Due to the difficulty in precisely controlling the steam injection angle and flow rate, the phenomenon of "local overheating" and "low-temperature blind spots" often coexist in the fixation chamber. Tea leaves near the steam nozzle are prone to scorching due to excessively high temperatures, while tea leaves far from the nozzle are underheated, resulting in residual enzyme activity, increased yellowing rate of tea leaves, and unstable retention rates of effective components such as tea polyphenols and chlorophyll. Therefore, a tea steam fixation machine is proposed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a steam fixation machine for tea, which solves the problem of residual enzyme activity causing an increase in the rate of yellowing of tea color.
[0006] To achieve the above objectives, this utility model provides a tea steam fixation machine, including a conveyor belt, a drying box is provided on the top of the conveyor belt, and efficiency improvement mechanisms are fixedly connected to the front and rear sides of the conveyor belt respectively, and a dehumidification mechanism is fixedly connected to the inner wall of the efficiency improvement mechanism.
[0007] The efficiency improvement mechanism includes support plates, with two support plates fixedly connected to the front and rear sides of the conveyor belt on their adjacent sides respectively. A steam generator is fixedly connected to the top of one of the support plates, and a transport pipe is fixedly connected to the right side of the steam generator. A casing is fixedly connected to the outside of the drying chamber, and a heat equalization chamber is opened inside the casing. Multiple through holes are opened inside the drying chamber, and multiple guide plates are fixedly connected to the inner wall of the drying chamber. A cooling component is fixedly connected to the top right side of the two support plates.
[0008] The cooling component includes a bracket, the bottom of which is fixedly connected to the top of the two support plates, and a cooling fan is fixedly connected to the inner wall of the bracket.
[0009] The dehumidification mechanism includes a dehumidification pipe, the exterior of which is fixedly connected to the inner wall of the casing. A dehumidification fan is fixedly connected to the inner wall of the dehumidification pipe. Collection hoppers are fixedly connected to the inner walls of the front and rear sides of the drying box, and collection troughs are provided inside the collection hoppers. A storage box is fixedly connected to the top of the support plate. Discharge pipes are fixedly connected to the opposite sides of the two storage boxes. A recycling component is fixedly connected to the right side of the collection hopper.
[0010] The recycling component includes a first return pipe, the left side of which is fixedly connected to the right side of the collection hopper, and a second return pipe is fixedly connected to the inner wall of the exhaust pipe.
[0011] The bottom of the transport pipe is fixedly connected to the top of the casing, and the multiple through holes correspond to the heat exchange chamber.
[0012] The right side of the casing is equipped with a control panel, and the multiple guide vanes are arranged at 30 degrees.
[0013] The collection tank uses rising hot air to generate water droplets for collection, and the return pipe is used to collect water droplets generated inside the exhaust pipe.
[0014] The bottom of one of the return pipes is fixedly connected to the front side of one of the collection hoppers, and the front side of one of the return pipes is fixedly connected to the right side of one of the storage boxes.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the hot steam generated by the steam generator is sent into the heat equalization chamber inside the casing through the transport pipe and diffuses evenly. Then, the hot steam can evenly penetrate into the chamber through the through holes on the drying box. The guide plate then guides the hot steam to the bottom of the tea leaves, and the cooling fan on the support blows it. Thus, the hot steam is evenly penetrated by the cooperation of the steam generator, the heat equalization chamber and the through holes. Combined with the guide plate to force the steam to penetrate the tea leaf layer, it achieves efficient and uniform fixation. After fixation, the cooling fan is used to quickly cool down the tea leaves, which effectively prevents the tea leaves from scorching due to high temperature and significantly improves the quality of the finished product.
[0017] 2. In this utility model, when the dehumidifying fan is running, it drives the hot and humid steam in the drying chamber to be discharged through the dehumidifying pipe. As the hot and humid steam rises, it encounters cold and forms water droplets, which are collected by the collection tank in the collection hopper. Then, it is transported to the storage box through the return pipe one and the return pipe two in the dehumidifying pipe. The water droplets generated by the steam in the dehumidifying pipe when it encounters cold also flow into the collection tank through the return pipe two and into the storage box through the return pipe one. Thus, the hot and humid steam is discharged through the dehumidifying fan and the dehumidifying pipe. The design of the collection tank and the double return pipe realizes the efficient recycling of water droplets, reduces water waste, improves drying efficiency, and reduces the energy consumption of the steam generator through water droplet recycling, achieving both energy saving and quality improvement. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0019] Figure 1 This is a three-dimensional schematic diagram of a tea steam fixation machine proposed in this utility model;
[0020] Figure 2 This is a schematic diagram of the casing of a tea steam fixation machine proposed in this utility model;
[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0022] Figure 4 for Figure 2 Enlarged view of section B in the middle.
[0023] In the diagram: 1. Conveyor belt; 2. Drying oven; 3. Efficiency improvement mechanism; 31. Support plate; 32. Steam generator; 33. Transport pipe; 34. Housing; 35. Heat dissipation chamber; 36. Through hole; 37. Guide plate; 38. Cooling component; 381. Bracket; 382. Cooling fan; 4. Dehumidification mechanism; 41. Exhaust pipe; 42. Exhaust fan; 43. Collection hopper; 44. Collection trough; 45. Storage box; 46. Discharge pipe; 47. Recycling component; 471. Return pipe one; 472. Return pipe two; 5. Control table. Detailed Implementation
[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0025] Reference Figures 1 to 3An embodiment of this utility model is provided: a tea steam fixation machine, including a conveyor belt 1, a drying box 2 is provided on the top of the conveyor belt 1, and efficiency lifting mechanisms 3 are fixedly connected to the front and rear sides of the conveyor belt 1 respectively, and a dehumidification mechanism 4 is fixedly connected to the inner wall of the efficiency lifting mechanism 3.
[0026] The efficiency improvement mechanism 3 includes a support plate 31, which provides fixation and support for the steam generator 32. The two support plates 31 are fixedly connected to the front and rear sides of the conveyor belt 1 respectively. The conveyor belt 1 provides fixation and support for the support plates 31 on both sides. The top of one of the support plates 31 is fixedly connected to the steam generator 32, which generates the hot steam required for drying. The right side of the steam generator 32 is fixedly connected to the transport pipe 33, which is used to transport the hot steam to the interior of the heat equalization chamber 35. The exterior of the drying box 2 is fixedly connected to the shell 34, which provides space for the heat equalization chamber 35. The heat equalization chamber 35 is opened inside the shell 34, which can uniformly diffuse the hot steam transported by the transport pipe 33.
[0027] The drying chamber 2 has multiple through holes 36 inside, allowing hot steam to evenly penetrate into the interior of the drying chamber 2, ensuring that the moist tea leaves are heated evenly and thus achieving the desired fixation. Multiple guide plates 37 are fixedly connected to the inner wall of the drying chamber 2, guiding the infiltrated hot steam to the bottom of the tea leaves, thereby improving the drying efficiency. A cooling component 38 is fixedly connected to the top right side of the two support plates 31. The cooling component 38 includes a bracket 381, which provides installation space and support for a cooling fan 382. The bottom of the bracket 381 is fixedly connected to the top of the two support plates 31, providing fixation and support for the bracket 381. A cooling fan 382 is fixedly connected to the inner wall of the bracket 381, rapidly cooling the dried tea leaves to prevent them from becoming overheated and scorched, thus improving the quality of the tea.
[0028] Reference Figure 2 and Figure 4 The dehumidification mechanism 4 includes a dehumidification pipe 41, which provides fixation and support for the dehumidification fan 42. The exterior of the dehumidification pipe 41 is fixedly connected to the inner wall of the housing 34, which provides fixation and support for the dehumidification pipe 41. The inner wall of the dehumidification pipe 41 is fixedly connected to the dehumidification fan 42, which can quickly exhaust the hot and humid steam generated inside the drying chamber 2. The front and rear inner walls of the drying chamber 2 are respectively fixedly connected to the collection hopper 43, which provides space for the collection trough 44. The collection hopper 43 has a collection trough 44 inside, which can collect water droplets generated during the drying and fixing of tea leaves.
[0029] A storage box 45 is fixedly connected to the top of the support plate 31. The storage box 45 can collect the generated water droplets, thus preparing for subsequent recycling. A discharge pipe 46 is fixedly connected to the opposite side of the two storage boxes 45. The discharge pipe 46 can discharge and recycle the water droplets inside the storage box 45. A recycling component 47 is fixedly connected to the right side of the collection hopper 43. The recycling component 47 includes a return pipe 1 471. The return pipe 1 471 can transport the water droplets collected inside the collection tank 44. The left side of the return pipe 1 471 is fixedly connected to the right side of the collection hopper 43. The collection hopper 43 provides fixation and support for the return pipe 1 471. A return pipe 2 472 is fixedly connected to the inner wall of the dehumidification pipe 41. The return pipe 2 472 can transport the water droplets generated when the dehumidification fan 42 discharges hot and humid steam.
[0030] Reference Figures 2 to 4 The bottom of the transport pipe 33 is fixedly connected to the top of the casing 34. The hot steam transported through the transport pipe 33 can be transported to the interior of the heat equalization chamber 35, and then it can be evenly diffused inside the heat equalization chamber 35. Multiple through holes 36 correspond to the heat equalization chamber 35. The hot steam that is evenly diffused inside the heat equalization chamber 35 can be evenly diffused into the interior of the drying box 2 through the through holes 36. A control table 5 is set on the right side of the casing 34. The operator can operate and control the device through the control table 5. Multiple guide plates 37 are placed at 30 degrees. The guide plates 37 can guide the hot steam inside the drying box 2 to the bottom of the tea leaves, so that the steam can be forcibly penetrated, thereby achieving the effect of even drying and heating. The collection tank 44 uses the rising hot air to generate water droplets for collection. Hot air is slightly lighter than cold air and thus rises. When it encounters cold air, the water droplets generated on the wall can be collected through the collection tank 44.
[0031] The second return pipe 472 is used to collect water droplets generated inside the exhaust pipe 41. When the exhaust fan 42 is running, it comes into contact with cold air, which causes a large number of water droplets to be generated inside the exhaust pipe 41. These water droplets can then be transported to the inside of the collection tank 44 through the second return pipe 472. The bottom of one of the second return pipes 472 is fixedly connected to the front side of one of the collection hoppers 43. The second return pipe 472 transports the water droplets generated inside the exhaust pipe 41 to the inside of the collection hopper 43. The front side of one of the first return pipes 471 is fixedly connected to the right side of one of the storage boxes 45. The water droplets generated inside the collection hopper 43 and the water droplets collected by the second return pipe 472 can finally flow through the first return pipe 471 to the inside of the second return pipe 472, thus completing the recycling.
[0032] Working principle: During use, the conveyor belt 1 moves the tea leaves forward. When the tea leaves move into the drying chamber 2, the hot steam generated by the steam generator 32 is sent into the heat equalization chamber 35 inside the casing 34 through the transport pipe 33 and diffuses evenly. Then, the hot steam can evenly penetrate into the chamber through the through holes 36 on the drying chamber 2. The guide plate 37 then guides the hot steam to the bottom of the tea leaves, forcing the steam to penetrate the tea leaf layer, so that the tea leaves are evenly heated and sterilized, improving the sterilization efficiency. When the tea leaves are dried and sterilized, they move to the outlet, where the cooling fan 382 on the bracket 381 blows air onto them, quickly reducing the temperature of the tea leaves, preventing the tea leaves from turning yellow due to high temperature, and improving the quality of the tea leaves.
[0033] When drying is carried out inside the drying oven 2, the exhaust fan 42 drives the hot and humid steam inside the drying oven 2 to be discharged through the exhaust pipe 41. As the hot and humid steam rises, it encounters cold and forms water droplets, which are collected by the collection tank 44 in the collection hopper 43. Then, it is transported to the storage box 45 through the return pipe 1 471 and the return pipe 2 472 in the exhaust pipe 41, realizing the recycling of water droplets. At the same time, the water droplets generated by the steam in the exhaust pipe 41 when it encounters cold also flow into the collection tank 44 through the return pipe 2 472, and flow into the storage box 45 through the return pipe 1 471, completing the moisture treatment and water droplet recycling.
[0034] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A tea leaf steam fixation machine comprising a conveyor belt, characterised in that: A drying box is provided at the top of the conveyor belt, and efficiency improvement mechanisms are fixedly connected to the front and rear sides of the conveyor belt respectively. A dehumidification mechanism is fixedly connected to the inner wall of the efficiency improvement mechanism. The efficiency improvement mechanism includes support plates, with two support plates fixedly connected to the front and rear sides of the conveyor belt on their adjacent sides respectively. A steam generator is fixedly connected to the top of one of the support plates, and a transport pipe is fixedly connected to the right side of the steam generator. A casing is fixedly connected to the outside of the drying chamber, and a heat equalization chamber is opened inside the casing. Multiple through holes are opened inside the drying chamber, and multiple guide plates are fixedly connected to the inner wall of the drying chamber. A cooling component is fixedly connected to the top right side of the two support plates.
2. A tea steam fixation machine according to claim 1, characterized in that: The cooling component includes a bracket, the bottom of which is fixedly connected to the top of the two support plates, and a cooling fan is fixedly connected to the inner wall of the bracket.
3. The tea steam fixation machine according to claim 1, characterized in that: The dehumidification mechanism includes a dehumidification pipe, the exterior of which is fixedly connected to the inner wall of the casing. A dehumidification fan is fixedly connected to the inner wall of the dehumidification pipe. Collection hoppers are fixedly connected to the inner walls of the front and rear sides of the drying box, and collection grooves are opened inside the collection hoppers. A storage box is fixedly connected to the top of the support plate. Discharge pipes are fixedly connected to the opposite sides of the two storage boxes. A recycling component is fixedly connected to the right side of the collection hopper.
4. A tea steam fixation machine according to claim 3, characterized in that: The recycling assembly includes a return pipe one, the left side of which is fixedly connected to the right side of the collection hopper, and a return pipe two is fixedly connected to the inner wall of the dehumidification pipe.
5. The tea steam fixation machine according to claim 1, characterized in that: The bottom of the transport pipe is fixedly connected to the top of the casing, and the plurality of through holes and the heat exchange chamber correspond to each other.
6. The tea steam fixation machine according to claim 1, characterized in that: A control panel is located on the right side of the casing, and the multiple guide vanes are arranged at 30 degrees.
7. A tea steam fixation machine as claimed in claim 4, wherein: The collection tank uses rising hot air to generate water droplets for collection, and the return pipe is used to collect water droplets generated inside the exhaust pipe.
8. A tea steam fixation machine according to claim 4, characterized in that: The bottom of one of the return pipes is fixedly connected to the front side of one of the collection hoppers, and the front side of one of the return pipes is fixedly connected to the right side of one of the storage boxes.