A Liupu tea suspension type hot air circulation intelligent tea dryer
The Liubao tea suspended hot air circulation intelligent tea dryer, by adopting suspended feeding and hot air circulation technology, solves the problem of temperature and humidity control in traditional tea dryers, thereby improving tea quality and increasing production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUZHOU UNIV
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional tea drying machines struggle to precisely control temperature, humidity, and drying time, resulting in dull tea color, loss of aroma, or over-drying. Furthermore, existing equipment suffers from high energy consumption, low intelligence, high labor costs, and low production efficiency.
The Liubao tea suspended hot air circulation intelligent tea dryer utilizes a suspended feeding system and hot air circulation technology to ensure that the tea leaves are heated evenly. A quantitative feeding is achieved through an opening and closing device, and the hot air circulation is optimized to improve the efficiency of heat energy utilization. Combined with a vibrating screening device, it achieves automated screening.
This process ensures uniform heating of the tea leaves, improves the consistency of tea quality, preserves the aroma and color of the tea, reduces energy consumption, saves production costs, and improves production efficiency.
Smart Images
Figure CN224327461U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tea drying technology, and in particular to a Liubao tea suspended hot air circulation intelligent tea dryer. Background Technology
[0002] Tea is a vital traditional agricultural product in China, and its processing plays a crucial role in shaping its quality. Among these processes, drying is a particularly critical step. It removes excess moisture from the tea leaves while effectively preserving their aroma and color. However, traditional tea drying machines have several problems in practical application.
[0003] Currently, traditional drying methods struggle to precisely control temperature, humidity, and drying time, easily leading to dull tea color, loss of aroma, or over-drying. While existing drying equipment on the market has seen some improvements, it still suffers from high energy consumption and low levels of automation, resulting in rising labor costs, low production efficiency, and inconsistent drying quality in tea production. Utility Model Content
[0004] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the existing technology by providing a Liubao tea suspended hot air circulation intelligent tea dryer, which optimizes the drying process, improves tea quality, and increases tea processing efficiency. It has the characteristics of wide applicability and strong practicality.
[0005] The technical solution adopted by this utility model is: a Liubao tea suspended hot air circulation intelligent tea dryer, including a drying chamber, a feeding funnel provided on the side wall of the drying chamber, an opening and closing device provided on the feeding funnel, a conveying and feeding device for feeding tea leaves on one side of the feeding funnel, a first ventilation filter provided at the bottom of the interior of the drying chamber, a hot air conveying system connected to the interior of the drying chamber provided below the first ventilation filter, a discharge channel connected to the top of the drying chamber, a discharge fan provided on the discharge channel, a return air pipe provided between the discharge channel and the hot air conveying system, and a vibrating screening device for screening tea leaves connected to the discharge channel.
[0006] As a further improvement, the opening and closing device includes a first motor, a gear, a rack, and a baffle plate. The first motor is mounted on the outer side of the feed hopper via a support plate. The gear is connected to the output end of the first motor. The baffle plate is movably inserted into the feed hopper. The lower end of the rack is connected to the baffle plate, and the upper end of the rack meshes with the gear.
[0007] Furthermore, the conveying and feeding device includes a conveyor belt, a support bracket, a second motor, and a discharge hopper. The conveyor belt is arranged at an incline on the support bracket, the discharge hopper is arranged at the lower end of the conveyor belt through a mounting frame, the second motor is mounted on the support bracket, and the second motor drives the rotating shaft of the conveyor belt to rotate through a belt drive mechanism.
[0008] Furthermore, the hot air conveying system includes a drying fan, a heater, an air inlet pipe, and an air inlet duct. The air inlet duct is arranged at the bottom of the drying chamber, the drying fan is installed at the bottom of the drying chamber, the output end of the drying fan is connected to the inner cavity of the air inlet duct, the input end of the drying fan is connected to the air inlet pipe, the heater is installed on the air inlet pipe, and the top of the air inlet duct is provided with multiple air outlet nozzles connected to it.
[0009] Furthermore, a hot air channel is provided on the outside of the drying chamber. One end of the hot air channel is connected to the inner cavity of the drying chamber, and the other end is connected to the air inlet duct. An air duct valve is provided on the hot air channel.
[0010] Furthermore, the lower end of the return air duct is connected to the inlet air duct, and the upper end of the return air duct is provided with a second ventilation filter.
[0011] Furthermore, the vibrating screening device includes a vibrating screen and a third motor. The third motor is mounted on the support legs of the vibrating screen and is connected to the power input end of the vibrating screen via a belt drive mechanism. The inlet of the vibrating screen is connected to the outlet channel.
[0012] Furthermore, a collection box is provided below the discharge port of the vibrating screen.
[0013] Beneficial effects
[0014] Compared with the prior art, this utility model has the following advantages:
[0015] This utility model discloses a suspended hot air circulating intelligent tea dryer for Liubao tea. Tea leaves enter the conveyor belt from the feeding hopper and are then conveyed into the infeed hopper. Once a certain amount of tea leaves has been collected in the infeed hopper, the first motor operates, driving a rack and pinion gear. The rack and pinion gear move a baffle plate upwards, opening the channel. The tea leaves fall from the feeding channel onto the first ventilation filter screen below the drying chamber. After the tea leaves have entered, the baffle plate closes, and the heater and drying fan are started. Air is introduced and drawn into the air inlet duct, from which dry hot air is sprayed out from the air outlet nozzles. Simultaneously, the air duct valves on the hot air channel open, allowing the hot air to enter the upper part of the drying chamber and begin drying the tea leaves. During the drying process, the tea leaves are evenly distributed by the hot air. The tea leaves are spread out and completely enveloped from all angles, allowing them to dry at a suitable temperature and ensuring even heating. Once dried to the required standard, the tea leaves are floated to the top of the drying chamber by hot air from the exhaust nozzles. The discharge fan then activates, and the tea leaves follow the airflow into the vibrating screen, achieving suspended feeding. The hot air circulates back through the return air duct. After being sieved by the vibrating screen, the tea leaves and tea residue fall into separate collection boxes. This device utilizes an advanced suspended feeding system and hot air circulation technology, ensuring even heating of the tea leaves during the drying process and effectively preventing localized overheating or incomplete drying. This uniform drying method improves the consistency of tea quality and preserves its aroma and color. By optimizing the hot air circulation path, heat utilization efficiency is improved, reducing energy consumption during the drying process and saving production costs. It is highly practical and widely applicable. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;
[0017] Figure 2 for Figure 1 Enlarged structural diagram at point A;
[0018] Figure 3 This is a three-dimensional structural diagram of the present invention.
[0019] The components are as follows: 1-Drying chamber, 2-Opening and closing device, 3-Conveying and feeding device, 4-Hot air conveying system, 5-Vibrating screening device, 6-Feeding hopper, 7-First ventilation filter, 8-Discharge channel, 9-Discharge fan, 10-Return air duct, 11-Hot air channel, 12-Air duct valve, 13-Second ventilation filter, 14-Collection box, 15-Supporting foot, 16-Air outlet nozzle, 21-First motor, 22-Gear, 23-Rack, 24-Baffle plate, 31-Support bracket, 32-Conveyor belt, 33-Second motor, 34-Discharge hopper, 41-Air inlet duct, 42-Heater, 43-Drying fan, 44-Air inlet duct, 51-Vibrating screen, 52-Third motor. Detailed Implementation
[0020] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.
[0021] See Figure 1-3As shown, this utility model discloses a Liubao tea suspended hot air circulation intelligent tea dryer, including a drying chamber 1. A feeding hopper 6 is provided on the side wall of the drying chamber 1, and an opening and closing device 2 is provided on the feeding hopper 6. A conveying and feeding device 3 for feeding tea leaves is provided on one side of the feeding hopper 6. A first ventilation filter 7 is provided at the bottom inside the drying chamber 1. A hot air conveying system 4, communicating with the inside of the drying chamber 1, is provided below the first ventilation filter 7. A discharge channel 8, communicating with the drying chamber 1, is provided above the drying chamber 1. A discharge fan 9 is provided on the discharge channel 8. A return air duct 10 is provided between the hot air conveying system 4 and the discharge channel 8. A vibrating screening device 5 for screening tea leaves is connected to the discharge channel 8. The tea leaves enter the conveyor belt 32 from the discharge hopper 34 and are conveyed into the feed hopper 6 by the conveyor belt 32. When a certain amount of tea leaves are collected in the feed hopper, the first motor 21 works, driving the rack 23 through the gear 22. The rack 23 drives the baffle plate 24 to move upward, opening the channel. The tea leaves fall from the feed channel into the first ventilation filter screen 7 below the drying chamber 1. After the tea leaves have entered, the baffle plate 24 is closed, and the system is started. Heater 42 and drying fan 43 introduce air and draw it into air inlet duct 44. Dry hot air is sprayed out from air outlet nozzle 16 on air inlet duct 44. At the same time, air duct valve 12 on hot air duct 11 is opened, and hot air enters the upper part of drying chamber 1 from hot air duct 11 to begin drying the tea. During the drying process, the tea leaves are evenly dispersed by the hot air, and the tea leaves are wrapped from all angles to ensure that the tea leaves are dried in a suitable temperature environment, ensuring the uniformity of heating. After the tea leaves are dried to the required finished product standard, the tea... The tea leaves are blown by hot air from the exhaust nozzle 16 and float above the drying chamber 1. The discharge fan 9 starts, and the tea leaves follow the airflow into the vibrating screen 51 through the discharge channel 8, achieving suspended feeding. The hot air is circulated back through the return air pipe 10. After the tea leaves are screened by the vibrating screen 51, the tea leaves and tea residue fall into the collection box 14 respectively. This device uses a relatively advanced suspended feeding system and hot air circulation technology. During the drying process, the tea leaves can be heated evenly, thus effectively avoiding local overheating or incomplete drying. This uniform drying method improves the consistency of tea quality and also preserves the aroma and color of the tea. By optimizing the hot air circulation path, the efficiency of heat utilization is improved, the energy consumption generated during the drying process is reduced, and production costs are saved.
[0022] Specifically, the opening and closing device 2 includes a first motor 21, a gear 22, a rack 23, and a baffle plate 24. The first motor 21 is mounted on the outer side of the feeding hopper 6 via a support plate. The gear 22 is connected to the output end of the first motor 21. The baffle plate 24 is movably inserted into the feeding hopper 6. The lower end of the rack 23 is connected to the baffle plate 24, and the upper end of the rack 23 meshes with the gear 22. A photoelectric sensor is provided above the feeding hopper 6 to detect when a certain amount of tea leaves have accumulated. Then, the first motor 21 is started, and the rack 23 is driven by the gear 22. The rack 23 drives the baffle plate 24 to move upward, opening the channel and allowing a certain amount of tea leaves to fall into the drying chamber 1, thus achieving quantitative feeding.
[0023] Preferably, the conveying and feeding device 3 includes a conveyor belt 32, a support bracket 31, a second motor 33, and a discharge hopper 34. The conveyor belt 32 is inclinedly arranged on the support bracket, and the discharge hopper 34 is arranged at the lower end of the conveyor belt 32 through a mounting frame. The second motor 33 is mounted on the support bracket 31, and the second motor 33 drives the rotating shaft of the conveyor belt 32 to rotate through a belt transmission mechanism.
[0024] Furthermore, the hot air conveying system 4 includes a drying fan 43, a heater 42, an air inlet pipe 41, and an air inlet duct 44. The air inlet duct 44 is located at the bottom of the drying chamber 1. The drying fan 43 is installed at the bottom of the drying chamber 1. The output end of the drying fan 43 is connected to the inner cavity of the air inlet duct 44, and the input end of the drying fan 43 is connected to the air inlet pipe 41. The heater 42 is installed on the air inlet pipe 41. The top of the air inlet duct 44 is equipped with multiple air outlet nozzles 16 connected to it. When the drying fan 43 is working, it draws air, heats it through the heater 42, and then introduces it into the air inlet duct 44. Dry hot air is sprayed out from the air outlet nozzles 16 on the air inlet duct 44 to begin drying the tea leaves. During the drying process, the tea leaves are evenly dispersed by the hot air, which wraps the tea leaves from all angles and all directions, allowing the tea leaves to undergo drying treatment in a suitable temperature environment, ensuring the uniformity of heating of the tea leaves and improving the quality of the tea leaves.
[0025] Furthermore, a hot air channel 11 is provided on the outside of the drying chamber 1. One end of the hot air channel 11 is connected to the inner cavity of the drying chamber 1, and the other end is connected to the air inlet duct 44. An air duct valve 12 is provided on the hot air channel 11. When the air duct valve 12 on the hot air channel 11 is opened, hot air enters the top of the drying chamber 1 from the hot air channel 11, which can dry the tea leaves with a large volume of air.
[0026] Furthermore, the lower end of the return air duct 10 is connected to the air inlet duct 41, and the upper end of the return air duct 10 is provided with a second ventilation filter 13, which plays a supporting and filtering role, ensuring that hot air can be returned through the return air duct 10, and at the same time ensuring that the tea leaves can smoothly pass through the return air duct 10 and enter the vibrating screening machine 51.
[0027] Furthermore, the vibrating screening device 5 includes a vibrating screener 51 and a third motor 52. The third motor 52 is mounted on the support foot 15 of the vibrating screener 51. The third motor 52 is connected to the power input end of the vibrating screener 51 through a belt drive mechanism. The inlet of the vibrating screener 51 is connected to the outlet channel 8. The vibrating screener 51 is driven by the third motor 52. The vibrating screener 51 performs vibration screening through a vibrator. After the tea leaves are screened by the vibrating screener 51, the tea leaves and tea residue fall into two collection boxes 14 respectively, thereby obtaining clean tea leaves, realizing automated screening and improving work efficiency.
[0028] Furthermore, a collection box 14 is provided below the discharge port of the vibrating screener 51 to collect the screened tea leaves and tea dregs for easy subsequent handling.
[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.
Claims
1. A Liubao tea suspended hot air circulation intelligent tea drying machine, characterized in that, The equipment includes a drying chamber (1), a feeding hopper (6) on the side wall of the drying chamber (1), an opening and closing device (2) on the feeding hopper (6), a conveying and feeding device (3) for feeding tea leaves on one side of the feeding hopper (6), a first ventilation filter (7) at the bottom inside the drying chamber (1), a hot air conveying system (4) connected to the inside of the drying chamber (1) below the first ventilation filter (7), a discharge channel (8) connected to the drying chamber (1) at the top of the drying chamber (1), a discharge fan (9) on the discharge channel (8), a return air pipe (10) between the discharge channel (8) and the hot air conveying system (4), and a vibrating screening device (5) for screening tea leaves connected to the discharge channel (8).
2. The intelligent tea drying machine for Liubao tea with suspended hot air circulation according to claim 1, characterized in that, The opening and closing device (2) includes a first motor (21), a gear (22), a rack (23) and a baffle plate (24). The first motor (21) is mounted on the outer side of the feed hopper (6) via a support plate. The gear (22) is connected to the output end of the first motor (21). The baffle plate (24) is movably inserted into the feed hopper (6). The lower end of the rack (23) is connected to the baffle plate (24), and the upper end of the rack (23) meshes with the gear (22).
3. The intelligent tea drying machine for Liubao tea with suspended hot air circulation according to claim 1, characterized in that, The conveying and feeding device (3) includes a conveyor belt (32), a support bracket (31), a second motor (33), and a discharge hopper (34). The conveyor belt (32) is inclinedly arranged on the support bracket. The discharge hopper (34) is arranged at the lower end of the conveyor belt (32) through a mounting frame. The second motor (33) is mounted on the support bracket (31). The second motor (33) drives the rotating shaft of the conveyor belt (32) to rotate through a belt drive mechanism.
4. The intelligent tea drying machine for Liubao tea with suspended hot air circulation according to claim 1, characterized in that, The hot air conveying system (4) includes a drying fan (43), a heater (42), an air inlet pipe (41), and an air inlet duct (44). The air inlet duct (44) is arranged at the bottom of the drying chamber (1). The drying fan (43) is installed at the bottom of the drying chamber (1). The output end of the drying fan (43) is connected to the inner cavity of the air inlet duct (44). The input end of the drying fan (43) is connected to the air inlet pipe (41). The heater (42) is installed on the air inlet pipe (41). The top of the air inlet duct (44) is provided with multiple air outlet nozzles (16) connected to it.
5. The intelligent tea drying machine for Liubao tea with suspended hot air circulation according to claim 4, characterized in that, The drying chamber (1) is provided with a hot air channel (11) on the outside. One end of the hot air channel (11) is connected to the inner cavity of the drying chamber (1), and the other end is connected to the air inlet duct (44). The hot air channel (11) is provided with an air duct valve (12).
6. The intelligent tea drying machine for Liubao tea with suspended hot air circulation according to claim 4, characterized in that, The lower end of the return air duct (10) is connected to the air inlet duct (41), and the upper end of the return air duct (10) is provided with a second ventilation filter (13).
7. The intelligent tea drying machine for Liubao tea with suspended hot air circulation according to claim 1, characterized in that, The vibrating screening device (5) includes a vibrating screen (51) and a third motor (52). The third motor (52) is installed on the support foot (15) of the vibrating screen (51). The third motor (52) is connected to the power input end of the vibrating screen (51) through a belt drive mechanism. The feed inlet of the vibrating screen (51) is connected to the discharge channel (8).
8. The intelligent tea drying machine for Liubao tea with suspended hot air circulation according to claim 7, characterized in that, The vibrating screen (51) is equipped with a collection box (14) below the discharge port.