Drying device for cyclocarya paliurus tea processing

Abstract

The utility model discloses a drying device for cyclocarya paliurus tea processing, and relates to the technical field of tea leaf drying. Comprising a supporting frame, a drying tank, a connecting shell, a heating plate, fan blades, a filter screen and a circulating air duct. A lower filter screen and two upper filter screens are arranged in the drying tank, a heating plate and fan blades are installed in a connecting shell, and a closed circulating air duct is formed through an upper ventilation disc, a side ventilation pipe and the drying tank. During working, the fan blades feed heated air into the drying tank, the hot air drives the tea leaves to rise, after moisture is filtered through the filter screen, part of the tea leaves are circularly dried along with airflow, and impurities are collected through the circulating air duct. And the design of inner and outer doors of the side ventilation pipe facilitates cleaning of a filter screen and impurities. According to the device, energy consumption is reduced through hot air cyclic utilization, efficient and uniform drying is achieved by combining multiple filtering and anti-adhesion structures, meanwhile, impurity treatment convenience is improved, and the tea quality is guaranteed.

Description

Technical Field

[0001] This application relates to the field of tea drying technology, specifically to a drying device for processing Qingqianliu tea. Background Technology

[0002] Tea drying is a crucial step in tea processing. Traditional drying equipment generally suffers from high energy consumption, uneven drying, easy sticking and breakage of tea leaves, and inconvenient impurity removal. Existing equipment mostly uses single-pass hot air drying, resulting in low heat utilization. Furthermore, tea leaves tend to accumulate in static or unidirectional airflow, leading to low drying efficiency and quality degradation. In addition, impurities and non-compliant tea leaves generated during the drying process are difficult to separate effectively, making equipment cleaning and maintenance challenging, further impacting production efficiency and tea quality. Therefore, a new type of drying equipment is needed that can achieve hot air circulation, uniform tea drying, and convenient impurity removal. Summary of the Invention

[0003] In response to the aforementioned technical problems, this application solves the problem in the prior art where tea leaves are damaged due to adhesion and uneven drying progress during the drying process.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows: a drying device for processing Eucommia ulmoides tea, comprising a support frame, a drying tank fixedly mounted on the support frame, a connecting shell fixedly mounted on the drying tank, a lower filter screen and two upper filter screens fixedly mounted on the drying tank, a heating plate and a mounting frame fixedly mounted on the connecting shell, fan blades rotatably mounted on the mounting frame, a main door for material entry and exit rotatably mounted on the drying tank, an upper ventilation disc and a side ventilation pipe fixedly mounted on the drying tank, the upper ventilation disc being located at the end of the drying tank away from the connecting shell, the wide end of the side ventilation pipe being fixedly connected to the upper ventilation disc, and the narrow end of the side ventilation pipe being fixedly connected to the connecting shell, the upper ventilation disc, the side ventilation pipe, the connecting shell, and the drying tank forming a circulating air duct.

[0005] Preferably, a heating plate is fixedly installed on the connecting shell, a heating rod is installed on the heating plate, and a ventilation groove is provided on the heating plate.

[0006] Preferably, the side ventilation pipe is provided with an opening, and an inner door is slidably provided on the side of the side ventilation pipe near the drying tank. The inner door is fixed by a buckle, and an outer door is rotatably provided on the side of the side ventilation pipe away from the drying tank. The outer door is fixedly installed on the side ventilation pipe by a buckle.

[0007] Preferably, two scrapers are fixedly mounted on the main shaft, with the two scrapers located on the side of the two upper filter screens facing the connecting shell.

[0008] Preferably, a motor is fixedly installed on the upper ventilation disc, the output end of the motor is fixedly connected to the main shaft, and the main shaft is rotatably connected to the upper ventilation disc.

[0009] Preferably, the drying tank is provided with an opening at the position where it fits with the side ventilation pipe opening, and the lowest point of one of the upper filter screens is much higher than the lowest point of the opening.

[0010] The technical solution provided in this application has the following advantages compared with the prior art:

[0011] 1. This application utilizes a circulating air duct design, allowing hot air to circulate within the drying tank, connecting shell, and side ventilation pipes, enabling the reuse of residual heat and significantly reducing energy consumption; in the later stages of drying, residual heat can be used to continue drying, avoiding overheating that could lead to tea breakage.

[0012] 2. The main shaft of this application drives the scraper to rotate. The inclined arc surface design can break up the tea leaves attached to the upper filter screen, prevent them from sticking and piling up, and ensure that the tea leaves continue to tumble in the hot airflow, thereby improving the uniformity and efficiency of drying.

[0013] 3. This application uses multiple filters (lower filter, upper filter, and side ventilation pipe screen) to filter impurities and non-compliant tea leaves in stages. The sliding inner door and rotating outer door of the side ventilation pipe make it easy to remove the filter screen, tea leaves, and clean impurities, and maintenance is simple.

[0014] 4. An exhaust port is provided at the end of the side ventilation pipe near the connecting shell in this application to avoid excessive pressure inside the drying tank and ensure safe operation of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this application;

[0016] Figure 2 This is a cross-sectional view of this application;

[0017] Figure 3 This is a schematic diagram of the scraper structure of this application;

[0018] Figure 4 This is a schematic diagram of the side ventilation duct of this application;

[0019] Figure 5 This is a schematic diagram of the exploded structure of the side ventilation duct in this application.

[0020] In the diagram: 101-Support frame; 102-Drying tank; 103-Motor; 104-Main shaft; 105-Connecting shell; 106-Fan blade; 107-Mounting frame; 108-Lower filter screen; 109-Upper filter screen; 110-Scraper; 111-Upper ventilation disc; 112-Side ventilation pipe; 113-Inner door; 114-Outer door; 115-Heating plate; 116-Main door. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] like Figures 1 to 5 As shown, a drying device for processing Eucommia ulmoides tea includes a support frame 101, a drying tank 102 fixedly mounted on the support frame 101, a connecting shell 105 fixedly mounted on the drying tank 102, a lower filter screen 108 and two upper filters 109 fixedly mounted on the drying tank 102, a heating plate 115 and a mounting frame 107 fixedly mounted on the connecting shell 105, a fan blade 106 rotatably mounted on the mounting frame 107, a main door 116 rotatably mounted on the drying tank 102 for material entry and exit, an upper ventilation disc 111 and a side ventilation pipe 112 fixedly mounted on the drying tank 102, the upper ventilation disc 111 being located at the end of the drying tank 102 away from the connecting shell 105, the wide end of the side ventilation pipe 112 being fixedly connected to the upper ventilation disc 111, and the narrow end of the side ventilation pipe 112 being fixedly connected to the connecting shell 105, the upper ventilation disc 111, the side ventilation pipe 112, the connecting shell 105 and the drying tank 102 forming a circulating air duct.

[0024] Specifically, tea leaves are placed in and out through the main door 116. After the tea leaves are placed on the lower filter screen 108 and the main door 116 is fixed, the main shaft 104 is driven to rotate. The main shaft 104 drives the fan blades 106 to rotate, thereby using the fan blades 106 to bring external hot air into the drying tank 102. The tea leaves are filtered by the lower filter screen 108, blocking impurities. Then, the hot air carries the tea leaves to the top of the drying tank 102. Some of the tea leaves with more moisture fall down due to gravity, and the hot air gradually removes the moisture. Some of the tea leaves with less moisture move with the hot air to the upper filter screen 109. The upper filter screen 109 blocks larger tea leaves, while smaller tea leaves and impurities pass through the upper filter screen 109 and enter a lower space. There, they come into contact with and are filtered by another upper filter screen 109, removing impurities, residues, and non-standard tea leaves. The tea leaves follow the hot air into the upper ventilation plate 111, then move through the circulating air duct into the side ventilation pipe 112. Impurities, residues, and non-compliant tea leaves are collected by the screen inside the side ventilation pipe 112. The air, due to residual heat, enters the connecting shell 105 through the circulating air duct and, guided by the fan blades 106, re-enters the drying tank 102. This hot air circulation reduces energy consumption. When the temperature inside the drying tank 102 reaches a certain standard or the drying process is nearing completion, heating of the outside air can be stopped, and the residual heat of the hot air inside the drying tank 102 can be used for subsequent continuous drying. This prevents excessively high temperatures that could cause excessive moisture loss in the tea leaves, making them more fragile and prone to breakage under the influence of airflow.

[0025] like Figure 3 As shown, a heating plate 115 is fixedly installed on the connecting shell 105, a heating rod is installed on the heating plate 115, and a ventilation slot is provided on the heating plate 115. Specifically, outside air is drawn in through the gaps in the heating plate 115, and the air is heated by the heating rod installed inside the heating plate 115 as it passes through.

[0026] like Figures 3 to 5 As shown, the side ventilation pipe 112 is provided with an opening, and an inner door 113 is slidably provided on the side of the side ventilation pipe 112 near the drying tank 102. The inner door 113 is fixed by a buckle, and an outer door 114 is rotatably provided on the side of the side ventilation pipe 112 away from the drying tank 102. The outer door 114 is fixedly installed on the side ventilation pipe 112 by a buckle.

[0027] Specifically, after drying, some tea leaves will fall onto the upper filter screen 109, thereby controlling the inner door 113 to slide downward on the inner wall of the side ventilation pipe 112, thus opening the opening of the side ventilation pipe 112, making it convenient for staff to remove the tea leaves from the upper filter screen 109. Additionally, impurities on the screen of the outer door 114 can also be moved out of the side ventilation pipe 112 by controlling the rotation of the outer door 114, thus facilitating the collection of impurities.

[0028] The side ventilation pipe 112 has holes at one end near the connecting shell 105. These holes allow some air to be discharged, preventing excessive pressure inside the drying tank 102 due to continuous air input.

[0029] like Figure 2 and Figure 3 As shown, two scrapers 110 are fixedly installed on the main shaft 104, and the two scrapers 110 are respectively located on the two upper filter screens 109 on the side facing the connecting shell 105.

[0030] Specifically, when the main shaft 104 rotates, it drives the scraper 110 to rotate on the lower surface of the upper filter screen 109. Due to the upward movement of hot air, some tea leaves adhere to the lower surface of the upper filter screen 109. As the scraper 110 rotates, it scrapes these tea leaves off. The scraper 110 has an inclined arc surface, allowing the tea leaves to slide on it. The thickness of the scraper 110 is adjusted to change the horizontal height of the tea leaves. After the tea leaves detach from the scraper 110, they move upward with the hot air, are dispersed, and dried again. This process is repeated to prevent the tea leaves from sticking together, which would affect the drying effect and efficiency. Furthermore, if some tea leaves stick together and affect the drying progress, continuing to dry the other already dried tea leaves would affect the quality of the tea, resulting in over-drying. In contrast, when using a conventional straight plate to push the tea leaves, the leaves tend to pile up, hindering dispersion and drying, and actually contributing to the sticking.

[0031] like Figure 1 and Figure 2 As shown, a motor 103 is fixedly mounted on the upper ventilation disc 111. The output end of the motor 103 is fixedly connected to the main shaft 104, and the main shaft 104 is rotatably connected to the upper ventilation disc 111. Specifically, by mounting the motor 103 on 111, the motor 103 drives the main shaft 104 to rotate.

[0032] like Figure 2 As shown, the drying tank 102 is provided with an opening at the position where it fits with the opening of the side ventilation pipe 112, and the lowest point of one of the upper filter screens 109 is much higher than the lowest point of the opening.

[0033] Specifically, after drying, the tea leaves can be taken out of the drying tank 102 not only through the main door 116 on the drying tank 102, but also through the opening on the side ventilation pipe 112 to take out the tea leaves on the upper filter screen 109.

[0034] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A drying device for processing Eucommia ulmoides tea, comprising a support frame (101), wherein a drying tank (102) is fixedly mounted on the support frame (101), and a connecting shell (105) is fixedly mounted on the drying tank (102), characterized in that: The drying tank (102) is fixedly equipped with a lower filter screen (108) and two upper filters screens (109). The connecting shell (105) is fixedly equipped with a heating plate (115) and a mounting bracket (107). The mounting bracket (107) is rotatably equipped with a fan blade (106). The drying tank (102) is rotatably equipped with a main door (116) for material entry and exit. The drying tank (102) is fixedly equipped with an upper ventilation plate (111) and a side ventilation pipe (112). The upper ventilation plate (111) is located at the end of the drying tank (102) away from the connecting shell (105). The wide end of the side ventilation pipe (112) is fixedly connected to the upper ventilation plate (111), and the narrow end of the side ventilation pipe (112) is fixedly connected to the connecting shell (105). The upper ventilation plate (111), the side ventilation pipe (112), the connecting shell (105), and the drying tank (102) form a circulating air duct.

2. The drying device for processing Eucommia ulmoides tea according to claim 1, characterized in that: A heating plate (115) is fixedly installed on the connecting shell (105), a heating rod is installed on the heating plate (115), and a ventilation groove is provided on the heating plate (115).

3. The drying device for processing Eucommia ulmoides tea according to claim 2, characterized in that: The side ventilation pipe (112) is provided with an opening. An inner door (113) is slidably provided on the side of the side ventilation pipe (112) near the drying tank (102). The inner door (113) is fixed by a buckle. An outer door (114) is rotatably provided on the side of the side ventilation pipe (112) away from the drying tank (102). The outer door (114) is fixedly installed on the side ventilation pipe (112) by a buckle.

4. The drying device for processing Eucommia ulmoides tea according to claim 3, characterized in that: Two scrapers (110) are fixedly installed on the main shaft (104), and the two scrapers (110) are respectively located on the two upper filter screens (109) facing the connecting shell (105).

5. A drying device for processing Eucommia ulmoides tea according to claim 4, characterized in that: A motor (103) is fixedly installed on the upper ventilation disc (111). The output end of the motor (103) is fixedly connected to the main shaft (104), and the main shaft (104) is rotatably connected to the upper ventilation disc (111).

6. The drying apparatus for processing Eucommia ulmoides tea according to claim 5, characterized in that: The drying tank (102) is provided with an opening at the position where it fits with the opening of the side ventilation pipe (112), and the lowest point of one of the upper filter screens (109) is much higher than the lowest point of the opening.

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