Tea leaf grading drying device
Through the design of the tea grading drying device, the uniform distribution and moisture removal of tea is achieved by using drying chamber and air curtain technology, solving the problems of adhesion and impurity adsorption caused by moisture before sorting of tea, and improving the sorting accuracy and efficiency.
Patent Information
- Application Number
- CN202422368652.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-27
AI Technical Summary
Tea contains high moisture before sorting, causing the tea to bind into clumps, affecting the grading accuracy and cleanliness and reducing the sorting efficiency.
A tea grading drying device is designed, including a drying box, heating parts, accumulating fans and exhaust parts. Through hot air drying and air curtain technology, the tea leaves are evenly distributed and moisture removed before sorting, and the precise grading of tea leaves of different sizes is achieved using the sorting screen plate.
It improves the drying effect of tea before sorting, avoids tea accumulation and impurities adsorption, and improves sorting efficiency and cleanliness of tea.
Smart Images
Figure CN223271597U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tea processing, in particular to a tea grading and drying device. Background Art
[0002] Tea sorting is a crucial step in tea processing to ensure its quality and grade. When tea leaves enter traditional tea sorting equipment, they often still contain a high level of moisture. This moisture not only causes the tea leaves to stick together, forming clumps that are difficult to disperse during the sorting process, thus affecting screening and reducing grading accuracy, but also increases the likelihood that dust and impurities will adhere to the tea leaves' surface, compromising their cleanliness and negatively impacting subsequent processing and final quality. Utility Model Content
[0003] The purpose of the utility model is to provide a tea grading and drying device, which can dry the tea before sorting and improve the distribution uniformity of the tea on the grading unit, thereby improving the sorting efficiency.
[0004] The above-mentioned optimized structure of the present invention is achieved through the following technical solutions: A tea grading and drying device comprises a fixed frame, a grading unit is provided on the fixed frame, a drying box is provided on the fixed frame, the drying box is arranged above the grading unit, and a heating element is provided on the inner wall of the drying box;
[0005] A feed channel is provided on the top of one side of the drying box, and the feed channel is arranged obliquely. A drying chamber is provided in the middle of the drying box, and a discharge chamber is provided on the other side of the drying box. The feed channel, the drying chamber and the discharge chamber are connected in sequence. The grading unit is provided at the bottom of the discharge chamber, and a distribution port is provided at the bottom of the drying chamber, and a distribution piece is provided at the distribution port.
[0006] In some embodiments, the distribution component includes multiple distribution fans, and the multiple distribution fans are arranged at the distribution port. An exhaust component is provided on the top of the drying box, and the exhaust port of the exhaust component is connected to the drying chamber and is arranged at the top of the drying chamber.
[0007] In some embodiments, the angle between the feed channel and the horizontal plane is 60°-80°.
[0008] In some embodiments, the heating element is a heating wire, and the heating wire is embedded in the inner wall of the drying box.
[0009] In some embodiments, the grading unit includes a sorting bed, a driving mechanism is provided between the sorting bed and the fixed frame, the sorting bed is provided with at least two sorting screen plates in sequence along the height direction, the sorting screen plates are arranged along the length direction of the sorting bed, one side of the sorting screen plate is arranged below the discharge cavity, and the other side of the sorting screen plate is connected to the discharge port.
[0010] In some embodiments, the screening apertures of the two sorting screen plates gradually decrease from high to low.
[0011] In some embodiments, the driving mechanism includes two vibration motors, and four springs are provided between the bottom of the sorting bed and the fixing frame.
[0012] In some embodiments, four first fixing columns are provided at the bottom of the sorting bed, four second fixing columns are provided on the fixing frame, the first fixing columns and the second fixing columns are arranged correspondingly, and the spring is sleeved between the first fixing columns and the second fixing columns.
[0013] In summary, the present invention has the following beneficial effects:
[0014] This tea grading and drying device forms an air curtain in the drying chamber 32 by cooperating with the distribution fan and the exhaust element, so that tea leaves of different sizes fall into different positions on the sorting sieve plate, thereby achieving uniform distribution of tea leaves on the sorting sieve plate and avoiding accumulation of tea leaves, which affects the sorting efficiency; at the same time, a heating element is provided in the drying chamber to evaporate the moisture on the surface of the tea leaves and achieve drying of the tea leaves before sorting, thereby avoiding the problems of tea leaf aggregation and impurity adsorption caused by moisture on the surface of the tea leaves, ensuring the cleanliness of the tea leaves, and facilitating the subsequent processing of the tea leaves. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a structural diagram of the utility model;
[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model;
[0017] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle.
[0018] In the figure: 1. Fixed frame; 2. Grading unit; 21. Sorting bed; 22. Driving mechanism; 221. Vibrating motor; 222. Spring; 23. Sorting screen plate; 24. Discharge port; 3. Drying box; 31. Feed channel; 32. Drying chamber; 33. Discharge chamber; 34. Distribution port; 4. Heating element; 5. Distribution element; 51. Distribution fan; 52. Exhaust element. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] refer to Figure 1-3 A tea grading and drying device includes a fixed frame 1, a grading unit 2 is provided on the fixed frame 1, a drying box 3 is provided on the fixed frame 1, the drying box 3 is arranged above the grading unit 2, and a heating element 4 is provided on the inner wall of the drying box 3. The heating element 4 can be a heating wire, which is embedded in the inner wall of the drying box 3 and can heat the air in the drying box 3. The hot air and the tea leaves are heat-exchanged to achieve preliminary drying of the tea leaves, thereby reducing the impact of high moisture content in the tea leaves on sorting and subsequent processing procedures.
[0021] A feeding channel 31 is provided at the top of one side of the drying box 3. The feeding channel 31 is tilted so that the tea leaves have a certain speed when entering the drying box 3. A drying chamber 32 is provided in the middle of the drying box 3, and a discharge chamber 33 is provided on the other side of the drying box 3. The feeding channel 31, the drying chamber 32 and the discharge chamber 33 are connected in sequence. A grading unit 2 is provided at the bottom of the discharge chamber 33, and a distributing port 34 is provided at the bottom of the drying chamber 32. The distributing port 34 is provided with a distributing part 5, which can improve the distribution uniformity of the tea leaves before they enter the grading unit 2, avoid the accumulation of tea leaves on the grading unit 2, and thus improve the sorting efficiency of the tea leaves.
[0022] In some embodiments, the distributing member 5 includes multiple distributing fans 51, which are arranged at the distributing port 34 and below the heating member 4. The blowing port of the distributing fan 51 is directed toward the top of the drying box 3. An exhaust member 52 is provided at the top of the drying box 3. The exhaust member 52 can be an exhaust fan. The exhaust port of the exhaust member 52 is connected to the drying chamber 32 and is arranged at the top of the drying chamber 32.
[0023] Multiple distribution fans 51 blow the air passing through the heating element 4 to the top of the drying box 3. At the same time, under the suction force of the exhaust element 52, a hot air curtain is formed in the drying chamber 32, which can accelerate the evaporation of moisture on the surface of the tea leaves, reduce the influence of moisture on the tea sorting, and remove fine particulate matter such as dust and impurities on the surface of the tea leaves, thereby improving the cleanliness of the tea leaves. At the same time, when the tea leaves pass through the wind curtain, they are subjected to an upward blowing force. Tea leaves of different specifications are subjected to different forces, resulting in different stay times in the air, and then falling into different positions on the grading unit 2, which helps to evenly distribute the tea leaves on the grading unit 2, avoids the aggregation of tea leaves on the grading unit 2, and thus improves the tea sorting efficiency.
[0024] In some embodiments, the angle between the feed channel 31 and the horizontal plane can be 60°-80°, so that the tea leaves entering the drying box 3 have a larger initial velocity and can fall onto the grading unit 2.
[0025] In some embodiments, the grading unit 2 includes a sorting bed 21, a driving mechanism 22 is provided between the sorting bed 21 and the fixed frame 1, and the sorting bed 21 is provided with at least two sorting screen plates 23 in sequence along the height direction. The sorting screen plates 23 are arranged along the length direction of the sorting bed 21, and one side of the sorting screen plate 23 is arranged below the discharge chamber 33, and the other side of the sorting screen plate 23 is connected to the discharge port 24.
[0026] In some embodiments, the screening apertures of the two sorting screen plates 23 gradually decrease from high to low to achieve screening of tea leaves of different sizes.
[0027] In some embodiments, the drive mechanism 22 includes two vibration motors 221, and four springs 222 are provided between the bottom of the sorting bed 21 and the fixed frame 1. The synchronous counter-rotation of the two vibration motors 221 generates an exciting force, and under the action of the springs 222, the sorting bed 21 and the sorting screen 23 are driven to move longitudinally, so that the tea leaves are periodically thrown forward a certain distance on the sorting screen 23 due to the exciting force, and eventually fall into the corresponding discharge port through the sorting screens 23 with different apertures, achieving precise grading. The specific structure and working principle of the drive mechanism 22 are prior art and will not be repeated here.
[0028] In some embodiments, four first fixed columns are provided at the bottom of the sorting bed 21, and four second fixed columns are provided on the fixing frame 1. The first fixed columns and the second fixed columns are arranged correspondingly, and a spring 222 is sleeved between the first fixed columns and the second fixed columns, which can improve the connection strength between the spring 222 and the sorting bed 21 and the fixing frame 1, thereby improving the working stability of the grading unit 2.
[0029] Here's how it works:
[0030] During operation, tea leaves enter the drying chamber 32 in the drying box 3 with a certain initial velocity through the inclined feed channel 31. The air in the drying chamber 32 is heated by the heating element 4. The blowing force of the distribution fan 51 and the exhaust element 52 work together to form a hot air curtain in the drying chamber 32. The moisture on the tea leaves passing through the air curtain is blown away, and tea leaves of different sizes stay in the air for different lengths of time, so that the tea leaves are evenly distributed on the sorting screen plate 23 after passing through the discharge chamber 33.
[0031] The sorting bed 21 vibrates under the action of the vibration motor 221. The large tea leaves continue to jump on the sorting sieve plate 23 and are discharged from the corresponding discharge port 24. The small tea leaves pass through the sorting sieve plate 23 with larger holes and fall onto the sorting sieve plate 23 with smaller holes. They jump along with the sorting sieve plate 23 and are discharged from the corresponding discharge port 24, completing the grading process.
[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A tea grading and drying device, comprising a fixed frame (1), wherein a grading unit (2) is provided on the fixed frame (1), characterized in that: A drying box (3) is provided on the fixed frame (1), the drying box (3) is arranged above the grading unit (2), and a heating element (4) is provided on the inner wall of the drying box (3); A feed channel (31) is provided on the top of one side of the drying box (3), and the feed channel (31) is arranged at an angle. A drying chamber (32) is provided in the middle of the drying box (3), and a discharge chamber (33) is provided on the other side of the drying box (3). The feed channel (31), the drying chamber (32) and the discharge chamber (33) are connected in sequence. The grading unit (2) is provided at the bottom of the discharge chamber (33), and a distribution port (34) is provided at the bottom of the drying chamber (32). The distribution port (34) is provided with a distribution member (5).
2. The tea grading and drying device according to claim 1, characterized in that: The distributing member (5) includes a plurality of distributing fans (51), and the plurality of distributing fans (51) are arranged at the distributing opening (34). An exhaust member (52) is provided at the top of the drying box (3), and the exhaust opening of the exhaust member (52) is communicated with the drying chamber (32) and is arranged at the top of the drying chamber (32).
3. The tea grading and drying device according to claim 1, characterized in that: The angle between the feed channel (31) and the horizontal plane is 60°-80°.
4. The tea grading and drying device according to claim 1, characterized in that: The heating element (4) is a heating wire, and the heating wire is embedded in the inner wall of the drying box (3).
5. The tea grading and drying device according to claim 1, characterized in that: The grading unit (2) comprises a sorting bed (21), a driving mechanism (22) is provided between the sorting bed (21) and the fixed frame (1), and the sorting bed (21) is provided with at least two sorting sieve plates (23) in sequence along the height direction. The sorting sieve plates (23) are arranged along the length direction of the sorting bed (21), one side of the sorting sieve plate (23) is arranged below the discharge cavity (33), and the other side of the sorting sieve plate (23) is connected to a discharge port (24).
6. The tea grading and drying device according to claim 5, characterized in that: The screening apertures of the two sorting sieve plates (23) gradually decrease from high to low.
7. The tea grading and drying device according to claim 5, characterized in that: The driving mechanism (22) includes two vibration motors (221), and four springs (222) are provided between the bottom of the sorting bed (21) and the fixing frame (1).
8. The tea grading and drying device according to claim 7, characterized in that: Four first fixing columns are provided at the bottom of the sorting bed (21), and four second fixing columns are provided on the fixing frame (1). The first fixing columns and the second fixing columns are arranged correspondingly, and the spring (222) is sleeved between the first fixing columns and the second fixing columns.