Efficient tea leaf drying device

Abstract

The utility model discloses an efficient tea leaf drying device, which relates to the technical field of drying equipment, and adopts symmetrically arranged side plates, adjusting rollers, a drying bed, a rotating shaft and a hollow roller to form a compact structure, so as to realize quick transfer and efficient utilization of hot air, the device can locally protrude and rebound under pushing of the roller, mildly support tea leaves and prevent adhesion and damage, the drying bed is divided into a plurality of drying areas by the device, airflow is regulated and controlled through the sliding partition plates, and water vapor of the tea leaves is taken away step by step; meanwhile, an external air inlet and exhaust system is connected through a spiral pipe, waste heat is used for preheating inlet air, the energy-saving and environment-friendly effects are achieved, in addition, a synchronous transmission mechanism, a motor, a feeding hopper and a collecting box are additionally arranged, automatic and continuous feeding and collecting of tea leaves are achieved, and a dust collecting box is arranged to keep equipment clean.

Description

TECHNICAL FIELD

[0001] The utility model relates to drying equipment technical field, and specifically is a kind of tea high-efficiency drying device. BACKGROUND

[0002] The main purpose of tea drying is to reduce the moisture content of tea, prevent microbial growth and enzyme reaction from damaging the quality of tea, thereby prolonging the shelf life of tea. At the same time, the aroma components in tea can be fixed through the drying process, improving the taste and flavor of tea, and facilitating long-term storage and transportation.

[0003] In the existing tea drying technology, Chinese invention patent CN118224850B discloses a tea dryer, which includes a base, a chain conveyor, a cover, a fan and a heating plate. The device pours tea into the chain conveyor through the feeding mechanism, spreads the tea evenly and then sends it into the cover, and the heating plate dries the tea. At the same time, the fan exhausts the high-temperature steam generated during the drying process, achieving uniform drying of the tea. However, this technology has some drawbacks in practical application, such as uneven local heating during tea conveying, easy sticking and damage of tea, complex structure, inconvenient cleaning and maintenance, etc.

[0004] Chinese utility model patent CN222418230U discloses a tea drying device with heat recovery. The technology uses a drying box, an exhaust fan, a circulating air pipe and a hot air mechanism to form a hot air circulation system, which can accelerate the flow of hot air and achieve certain heat recovery effect. Although this design effectively improves the speed of hot air flow through the exhaust fan and circulating air pipe, it still has problems such as uneven air distribution, low heat exchange efficiency, insufficient compactness of the overall structure and low level of automatic control.

[0005] Although the above existing designs have achieved certain results in tea conveying and hot air circulation, they still cannot solve the problems of sticking, damage and energy waste caused by uneven local heating during tea drying. At the same time, the automation and maintenance of the equipment need to be further improved. SUMMARY

[0006] The utility model aims to overcome the shortcomings of the prior art and proposes a tea high-efficiency drying device to solve the above problems.

[0007] To this end, the application provides a kind of tea high-efficiency drying device, its design goal is to optimize the structure of key components such as side plate, adjusting roller, drying bed, rotating shaft, roller, exhaust hood and exhaust pipe, and adopt hollow heat transfer and synchronous transmission technology, form compact and efficient hot air circulation system, meanwhile, the device is provided with elastic drying bed and air-permeable buffer layer, which can realize local bulging and rebound under the action of roller, effectively prevent tea from sticking and being damaged;Add heating equipment, feed hopper, collection box and dust collection box, then realize the automatic continuous input and output of tea and effective cleaning, through the above improvements, the application aims to overcome the low heat utilization rate, uneven airflow distribution, tea damage and equipment maintenance difficulty in the prior art, and achieve the purpose of efficient, continuous, energy-saving and environment-friendly tea drying.

[0008] The utility model discloses a kind of tea high-efficiency drying devices, including symmetrically arranged side plate one and side plate two, side plate one and side plate two are rotatably connected with symmetrically arranged adjusting roller one and adjusting roller two between, adjusting roller one and adjusting roller two outer end contact are provided with same drying bed, side plate two and adjusting roller one are rotatably connected with rotating shaft one, rotating shaft two and rotating shaft three between, rotating shaft one, rotating shaft two and rotating shaft three upper side and lower side are fixedly connected with roller one and roller two by pipeline, drying bed upper side is equipped with exhaust hood, exhaust hood is slidably connected with multiple baffle, multiple baffle, drying bed and rotating shaft three, rotating shaft two, rotating shaft one corresponding position are drying area one, drying area two, drying area three respectively, exhaust hood and drying area one, drying area two, drying area three corresponding position are fixedly connected with exhaust pipe one, exhaust pipe two and exhaust pipe three respectively, exhaust pipe one far end from exhaust hood one is communicated with rotating shaft two, exhaust pipe two is communicated with rotating shaft three.

[0009] Rotating shaft one, rotating shaft two and rotating shaft three are evenly distributed along horizontal plane, rotating shaft one, rotating shaft two, rotating shaft three, roller one, roller two are hollow structure, and rotating shaft one, rotating shaft two, rotating shaft three hollow portion are communicated with corresponding roller one and roller two hollow portion.

[0010] Roller one or roller two is rotated to the upper side of corresponding rotating shaft one, rotating shaft two, rotating shaft three, and the outer end thereof is in contact with the bottom end of the drying bed, the drying bed is made of elastic material, and a buffer layer made of air-permeable material is fixedly connected to the top end of the drying bed, and the drying bed has a porous structure.

[0011] Axial flow fan is arranged on exhaust pipe one, exhaust pipe two and exhaust pipe three, rotating shaft one is communicated with external air intake system through spiral pipe, rotating shaft three is communicated with external exhaust system through spiral pipe, and the spiral pipes communicated with rotating shaft one and rotating shaft three are in contact with each other.

[0012] A heating device is arranged between the rotating shaft one and the spiral pipe, the dust collecting box is fixedly connected between the side plate one and the side plate two and located at the lower side of the roller one and the roller two, the elastic belts are fixedly connected between both ends of the drying bed and the dust collecting box and around the adjusting roller one and the adjusting roller two.

[0013] The elastic belts are made of elastic material, the rotating shaft one, the rotating shaft two and the rotating shaft three all penetrate through the side plate two and are fixedly connected with synchronous pulleys, and the adjacent two synchronous pulleys are connected through the synchronous belts.

[0014] The motor is fixedly connected with the corresponding position of the rotating shaft two on the side plate two, and the motor power shaft is fixedly connected with the corresponding synchronous belt, and the roller one and the roller two are all provided with a plurality of through holes at the ends away from each other.

[0015] The feeding hopper is fixedly connected between the side plate one and the side plate two and located at the upper side of the drying bed and close to one end of the rotating shaft three, the collecting box is fixedly connected between the side plate one and the side plate two and located at the lower side of the drying bed and close to one end of the rotating shaft one, and the adjusting nuts are threadedly connected with the corresponding positions of the plurality of partitions on the side plate one and the side plate two.

[0016] The beneficial effects of the utility model are:

[0017] 1. The side plate, the adjusting roller, the drying bed, the rotating shaft and the hollow roller are symmetrically arranged, a short distance and airtight heat conduction channel is formed between the key components, the hot air can be quickly and uniformly transmitted to the tea leaves, the tea leaves can reach the drying requirement in a short time, meanwhile, the design of the internal channel helps to reduce the heat energy loss and improve the overall energy utilization rate.

[0018] 2. The drying bed is made of elastic material and fixedly connected with the breathable buffer layer at the top end, which can realize local bulging and rebounding under the pushing of the roller, and can play a role of gentle buffering when the tea leaves are stressed, the structure design makes the tea leaves not easy to be damaged in the lifting and conveying process, prevents the tea leaves from being broken and deformed due to mechanical impact or continuous friction, and effectively avoids the phenomenon of adhesion of the tea leaves in the drying process.

[0019] 3. The drying bed is divided into a plurality of drying zones, and the partition plate is slidably adjusted on the exhaust hood, the distance between the bottom end of the partition plate and the top end of the drying bed can be adjusted to flexibly control the air flow channel between the drying zones, so that the hot air can be uniformly distributed in each area, and the effect of gradually taking away the water vapor in the tea leaves can be realized, to ensure that the tea leaves are fully dried in different stages.

[0020] 4. The cold air entering the device is preheated by the spiral pipe design between the rotating shaft and the external air intake and exhaust system, and the waste heat in the exhaust is used for heat exchange, realizing the recycling of heat, which not only improves the heat energy utilization efficiency and reduces energy consumption, but also helps to reduce the heat emission load of the device on the environment, achieving the goal of energy saving and environmental protection.

[0021] 5. The heating device, dust collection box, elastic belt, synchronous transmission mechanism, motor and feeding hopper and collection box are added on the basis of the original structure, so that the whole device has automatic continuous drying capacity, the linkage of the synchronous transmission mechanism and the motor ensures that the rotating shaft always rotates stably and synchronously, and then drives the roller to continuously push the drying bed, realizes the stable conveying of tea leaves, and the setting of the feeding hopper and the collection box realizes the automatic feeding and collection of tea leaves, improves the overall production efficiency, and reduces the operation difficulty and labor intensity.

[0022] 6. The setting of the dust collection box can effectively collect the dust and impurities falling off from the tea leaves during the drying process, keep the drying bed and other parts clean, ensure the long-term stable operation of the device, and improve the drying effect and product quality. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the overall structure diagram of the utility model;

[0024] Figure 2 It is the overall explosion diagram of the utility model;

[0025] Figure 3 It is the local explosion of the utility model Figure 1 ;

[0026] Figure 4 It is the local explosion of the utility model Figure 2 ;

[0027] Figure 5 It is the local explosion of the utility model Figure 3 ;

[0028] Figure 6 It is the front view of the utility model;

[0029] Figure 7 It is the A-A sectional view of the utility model Figure 6 ;

[0030] Figure 8 It is the B-B sectional view of the utility model Figure 7 ;

[0031] Figure 9 It is the C-C sectional view of the utility model Figure 8 ;

[0032] Figure 10For the present utility model Figure 9 DD section view;

[0033] Figure 11 This is a structural diagram of the present utility model.

[0034] Explanation of the labels in the diagram

[0035] 1. Side plate one; 2. Side plate two; 3. Adjusting roller one; 4. Adjusting roller two; 5. Drying bed; 6. Rotating shaft one; 7. Rotating shaft two; 8. Rotating shaft three; 9. Roller one; 10. Roller two; 11. Exhaust hood; 12. Partition; 13. Exhaust pipe one; 14. Exhaust pipe two; 15. Exhaust pipe three; 16. Dust collection box; 17. Elastic belt. Detailed Implementation

[0036] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0037] It should be noted that the directional concepts of "left", "right", "up", "down", "front", "back", "inner", and "outer" in the following scheme are all relative directions, and will not be listed one by one here.

[0038] Example 1

[0039] like Figures 1 to 11 As shown, in this embodiment, the high-efficiency tea drying device mainly consists of the following components:

[0040] Side plate 1 and side plate 2 are arranged symmetrically to form the basic outer shell of the equipment;

[0041] Between side plate 1 and side plate 2, there are symmetrically arranged adjusting rollers 3 and 4, and the outer ends of both are in contact with the same drying element, drying bed 5.

[0042] Between the side plate 2 and the adjusting roller 3, there are rotating shafts 6, 7 and 8 connected in sequence, and the three rotating shafts are evenly distributed on the horizontal plane;

[0043] Hollow rollers 9 and 10 are fixedly connected to the upper and lower sides of rotating shafts 6, 7, and 8 via pipes, and the hollow parts inside the rotating shafts are all connected to the hollow parts of the corresponding rollers.

[0044] The drying bed 5 is made of elastic material and has a porous structure. A cushioning layer made of breathable material is fixedly connected to its top to provide cushioning protection when the tea leaves are subjected to force.

[0045] The upper side of the drying bed 5 is provided with an exhaust cover 11, and a plurality of adjustable partitions 12 are slidably connected to the exhaust cover 11. By adjusting the positions of the partitions 12, the gaps in different areas can be changed.

[0046] According to the positions corresponding to the respective rotating shafts, the drying bed 5 can be divided into three major drying areas: the drying area 1 near the rotating shaft 8, the drying area 2 near the rotating shaft 7, and the drying area 3 near the rotating shaft 6.

[0047] On the exhaust cover 11, exhaust pipes 13, 14, and 15 are fixedly connected to positions corresponding to the drying area 1, the drying area 2, and the drying area 3, respectively. The exhaust pipe 13 is connected in communication with the rotating shaft 7 at an end away from the exhaust cover 11, and the exhaust pipe 14 is connected in communication with the rotating shaft 8.

[0048] In addition, axial flow fans are installed on the exhaust pipes 13, 14, and 15 to enhance the exhaust effect of the airflow in each drying area.

[0049] The rotating shaft 6 is connected in communication with an external air intake system through a spiral pipe, and the rotating shaft 8 is connected in communication with an external exhaust system through a spiral pipe. The two spiral pipes are arranged in contact with each other to realize heat exchange and reuse.

[0050] Working process

[0051] Starting and preheating of air supply

[0052] When the device is started, the external air intake system sends preheated hot air into the device through the spiral pipe connected to the rotating shaft 6. The hot air discharged at the exhaust pipe 15 exchanges heat with the external exhaust system connected to the rotating shaft 8 through the spiral pipe, forming a closed circulation hot air channel. This not only preheats the incoming air, but also realizes efficient use of energy.

[0053] Lifting of the drying bed and tea leaf transmission

[0054] As the rotating shafts 6, 7, and 8 are driven by the equipment drive system to rotate synchronously, the hollow rollers 9 and 10 fixed thereto also rotate. When the roller 9 or the roller 10 rotates to the upper side of the corresponding rotating shaft, the outer end thereof will contact the bottom end of the drying bed 5, causing the drying bed 5 to partially protrude upward. Since the drying bed 5 is made of elastic material and has a buffer layer fixedly connected to the top end, it can gently lift the tea leaves during the lifting process, avoiding damage to the tea leaves due to excessive force.

[0055] Zoned drying and hot air circulation

[0056] During equipment operation, the drying bed 5 is divided into drying zone 1, drying zone 2, and drying zone 3. Hot air first enters drying zone 3 via rotating shaft 6, and then flows sequentially to drying zone 2 and drying zone 1. Each drying zone is covered by an exhaust hood 11, and exhaust pipes 13, 14, and 15 are fixedly connected at corresponding positions. Axial flow fans continuously draw hot air from these exhaust pipes to remove moisture from the tea leaves. At the same time, partitions 12 slidably connected to the exhaust hood 11 can adjust the ventilation gap between the drying zones to ensure that the hot air is evenly distributed and the temperature is suitable in each zone, thereby achieving sequential and uniform heating and drying of the tea leaves in different drying zones.

[0057] Heat recycling

[0058] Since shafts 6 and 8 are connected to the external air intake system and exhaust system respectively through spiral tubes, and the two spiral tubes are in contact with each other, the hot air discharged from the exhaust pipe can re-enter the air intake after heat exchange. This ensures a continuous supply of hot air and improves the overall thermal energy utilization rate, thus achieving the goal of energy saving and consumption reduction.

[0059] Continuous cyclic operation

[0060] During the continuous operation of the equipment, the adjusting rollers 3 and 4 apply uniform pressure to the drying bed 5, causing the drying bed 5 to continuously roll the tea leaves on the surface of the drying bed during the continuous lifting and rebounding process. In this process, the tea leaves are fully dried by hot air, and the repeated slight shaking prevents them from sticking together, thus ensuring the uniformity and integrity of the drying of the tea leaves.

[0061] The symmetrical arrangement and hollow structure of side plate 1, side plate 2, adjusting roller 3, adjusting roller 4, drying bed 5, rotating shaft 6, rotating shaft 7, rotating shaft 8, and drums 9 and 10 make the overall device compact and the heat transfer path short, thereby improving thermal efficiency and achieving the goal of fast and uniform drying of tea.

[0062] The drying bed 5 is made of elastic material and has a buffer layer made of breathable material fixedly connected to the top. Its porous structure facilitates the penetration of hot air. In this way, when the rollers 9 and 10 push the drying bed 5 to bulge locally, it can not only gently lift the tea leaves and prevent them from being damaged by impact, but also prevent the tea leaves from sticking together due to continuous movement, thus ensuring uniform drying.

[0063] By dividing the drying bed 5 into drying zone 1, drying zone 2, and drying zone 3, and setting a sliding adjustable partition 12 on the exhaust hood 11, the gas flow between each drying zone can be adjusted according to actual needs, so that hot air is evenly distributed in different areas, thereby achieving the effect of gradually removing moisture from the tea leaves and improving drying efficiency.

[0064] The rotating shafts 6 and 8 are connected to the external intake and exhaust system through spiral tubes, and the two spiral tubes are in contact with each other for heat exchange, making full use of the residual heat in the exhaust to preheat the intake air, realizing the recycling of heat and reducing energy consumption. At the same time, the axial flow fans installed on the exhaust pipes 13, 14 and 15 enhance the airflow extraction effect, further improving the drying efficiency and overall environmental performance.

[0065] Through the specific structural design, working process and beneficial effects of the above embodiment 1, it can be seen that the high-efficiency tea drying device can achieve efficient utilization of heat energy while ensuring that the tea is subjected to gentle force and dried evenly. It has obvious advantages such as compact structure, energy saving and environmental protection and excellent drying effect.

[0066] Example 2

[0067] like Figures 1 to 11 As shown, Example 2, based on the basic structure of Example 1, further adds auxiliary devices and improved components to achieve more efficient, continuous, and intelligent tea drying. Its main structure and composition are as follows:

[0068] Side plate 1 and side plate 2 are arranged symmetrically to form the basic outer shell of the entire device;

[0069] Between side plate 1 and side plate 2, there are symmetrically arranged adjusting rollers 3 and 4, whose outer ends are in contact with the same drying bed 5 to ensure that the drying bed 5 is subjected to uniform force.

[0070] Between the side plate 2 and the adjusting roller 3, there are rotating shafts 6, 7 and 8 connected in sequence, and these three rotating shafts are evenly distributed on the horizontal plane;

[0071] Rotating shafts 6, 7, and 8 are all hollow structures. Their hollow parts are connected to the hollow parts of hollow rollers 9 and 10, which are fixedly connected to their upper and lower sides through pipes, to ensure the smooth transmission of hot air and airflow.

[0072] The drying bed 5 is made of elastic material and has a porous structure. A buffer layer made of breathable material is fixedly connected to its top, which can both buffer the tea leaves under pressure and facilitate the penetration of hot air.

[0073] The drying bed 5 is divided into drying zone 1, drying zone 2 and drying zone 3 at the positions corresponding to the rotating shafts 8, 7 and 6, respectively;

[0074] An exhaust hood 11 is provided on the upper side of the drying bed 5, and multiple partitions 12 are slidably connected to it. By adjusting the nuts (installed on the side plate 1 and the side plate 2 at the positions corresponding to the partitions 12), the distance between the bottom end of the partition 12 and the top end of the drying bed 5 can be changed, thereby regulating the airflow between the drying zones.

[0075] Exhaust pipes 13, 14 and 15 are fixedly connected to the exhaust hood 11 at positions corresponding to drying zones 1, 2 and 3, respectively. The end of exhaust pipe 13 away from exhaust hood 11 is connected to rotating shaft 7, and exhaust pipe 14 is connected to rotating shaft 8.

[0076] Axial fans are installed on exhaust pipes 13, 14 and 15 to enhance the airflow extraction effect in each drying zone.

[0077] The rotating shaft 6 is connected to the external air intake system through a spiral tube, and the rotating shaft 8 is connected to the external exhaust system through a spiral tube. The two spiral tubes are in contact with each other to achieve heat exchange and preheating functions.

[0078] Auxiliary components and drive mechanism

[0079] In Example 2, the following components are added to achieve automated continuous drying and auxiliary collection:

[0080] The heating device is located between the rotating shaft 6 and the spiral tube. It is used to heat the external gas after it is drawn in, and then transport the hot gas through the inside of the rotating shaft 6.

[0081] The dust collection box 16 is fixedly connected between the side plate 1 and the side plate 2, and is located on the lower side of the drum 9 and the drum 10. It is used to collect dust and impurities generated during the drying process.

[0082] The elastic band 17 is fixedly connected at both ends to the drying bed 5 and the dust collection box 16. The elastic band 17 is made of elastic material, which can make the drying bed 5 move back and forth stably under the action of the roller 9 and the roller 10, while maintaining tension.

[0083] The synchronous transmission mechanism has shafts 6, 7 and 8 that all pass through side plate 2, and synchronous pulleys are fixedly connected to the passing parts. Adjacent synchronous pulleys are connected by a synchronous belt.

[0084] The motor is fixedly connected to the side plate 2 at the position corresponding to the rotating shaft 7, and is fixedly connected to the synchronous belt through its power shaft, so that the rotating shafts 6, 7 and 8 can rotate synchronously;

[0085] The feeding hopper and the collecting box are located between side plate 1 and side plate 2. The feeding hopper is fixedly connected to the side near the rotating shaft 8 and on the upper side of the drying bed 5 for feeding tea leaves to be dried; at the same time, the collecting box is fixedly connected to the side near the rotating shaft 6 and on the lower side of the drying bed 5 for collecting the dried tea leaves.

[0086] Work process

[0087] Start preheating and air supply

[0088] When the device is started, the external air intake system draws air into the heating device through the spiral tube connected to the rotating shaft 6, and the heating device heats the gas.

[0089] The heated air is transported through the through holes of the rotating shaft 6, hollow drum 9, and drum 10 to the drying zone 3 where the drying bed 5 is located;

[0090] Meanwhile, the exhaust pipe 15 exchanges heat between the discharged hot air and the intake hot air through the spiral tube connected to the rotating shaft 8, thereby preheating the cold air entering the heating equipment.

[0091] The axial flow fans installed on each exhaust pipe 13, exhaust pipe 14 and exhaust pipe 15 enhance the airflow extraction effect and ensure that hot air flows continuously in each drying zone.

[0092] Tea conveying and drying process

[0093] Tea leaves are fed into the hopper (fixed on side plate 1 and side plate 2, near the rotating shaft 8 and located on the upper side of the drying bed 5), and the tea leaves fall from the hopper into the top of the drying bed 5;

[0094] The motor (fixed on the side plate 2 at the position corresponding to the rotating shaft 7) drives the synchronous pulley fixedly connected to the rotating shaft 7 to rotate, and uses the synchronous belt to drive the synchronous pulleys fixedly connected to the rotating shaft 6 and the rotating shaft 8, so that the rotating shaft 6, the rotating shaft 7 and the rotating shaft 8 rotate synchronously;

[0095] The synchronously rotating shaft drives the hollow drum 9 and drum 10 to rotate. When the drum 9 and drum 10 rotate to the upper side of the corresponding rotating shaft, their outer ends contact the bottom end of the drying bed 5, pushing the drying bed 5 to bulge upward in a local area.

[0096] The drying bed 5 is made of elastic material. After the rollers 9 and 10 lose contact, it returns to its original shape under the action of the elastic band 17, forming a continuous convex and rebound motion.

[0097] During the process of the drying bed 5 being raised, the tea leaves in contact are gently lifted and moved along the drying bed 5 from the side closer to the rotating shaft 8 to the side closer to the rotating shaft 6, thereby realizing the rolling and conveying of the tea leaves.

[0098] In addition, the drying zones above the drying bed 5 (drying zone 3, drying zone 2, drying zone 1) utilize the hot air generated by the rollers 9 and 10 driven by the rotating shafts 6, 7, and 8 to heat and dry the tea leaves in an environment with progressively decreasing temperatures, preventing the tea leaves from sticking together. At the same time, the exhaust pipes and axial flow fans of each drying zone work together to gradually remove the moisture from the tea leaves.

[0099] Assisted collection and continuous operation

[0100] At both ends of the drying bed 5, the tea leaves are continuously fed into the device after passing through the adjusting rollers 3 and 4 respectively.

[0101] The collection box located under side panels 1 and 2 (near the rotating shaft 6) automatically collects the dried tea leaves;

[0102] The dust collection box 16 is fixed between the side plate 1 and the side plate 2 to collect the dust and impurities that fall off during the drying process, and the tension and smooth movement of the drying bed 5 are maintained by the elastic band 17.

[0103] The synchronous transmission mechanism and the linkage of the motor ensure that the rotating shafts 6, 7 and 8 always remain stable and synchronized, making the entire drying process continuous, stable and efficient.

[0104] When in use, put the tea leaves that need to be dried into the feed hopper, and then the tea leaves fall from the feed hopper into the top of the drying bed 5;

[0105] Simultaneously, the motor drives the synchronous pulley fixedly connected to the second shaft 7 to rotate. This synchronous pulley, in turn, drives the synchronous pulleys fixedly connected to the first shaft 6 and the third shaft 8 to rotate via the synchronous belt. This causes the first shaft 6, the second shaft 7, and the third shaft 8 to rotate synchronously. During the rotation of the first shaft 6, the second shaft 7, and the third shaft 8, the first roller 9 and the second roller 10 connected to them to rotate. When the first roller 9 and the second roller 10 rotate and contact the bottom end of the drying bed 5, they push the drying bed 5 to bulge upwards. During the bulging process, the drying bed 5 moves the tea leaves in contact with it. As the drying bed 5 bulges upwards, the tea leaves slide towards the non-bulging part of the drying bed 5. By rotating the first roller 9 and the second roller 10 on the first shaft 6, the first shaft 7, and the third shaft 8 together, the tea leaves at the top of the drying bed 5 are pushed from the end of the drying bed 5 near the third shaft 8 to the end near the first shaft 6.

[0106] Because the drying bed 5 is made of elastic material, when the first roller 9 and the second roller 10 are no longer in contact with the drying bed 5, the drying bed 5 returns to its original shape under the action of elasticity. Since a buffer layer is fixedly connected to the top of the drying bed 5, the buffer layer cushions the tea leaves when they move at the top of the drying bed 5, reducing damage to the tea leaves. Furthermore, under the action of the first roller 9 and the second roller 10, the drying bed 5 can effectively reduce the sticking of tea leaves during the drying process through protrusion and rebound, thereby preventing the tea leaves from sticking together during the drying process and keeping gaps between the tea leaves to facilitate airflow and achieve better drying results.

[0107] During the drying process, the heating device connected to the rotating shaft 6 draws in gas through the spiral pipe connected to it and supplies hot air into the rotating shaft 6. The hot air enters the drying zone 3 through the through holes on the rollers 9 and 10 fixedly connected to the rotating shaft 6. Then, the hot air enters the rotating shaft 7 through the exhaust pipe 13 at the top of the drying zone 3. After that, it enters the drying zone 2 through the rollers 9 and 10 on the rotating shaft 7. Then, the hot air enters the rotating shaft 8 through the exhaust pipe 14. After that, it enters the drying zone 1 through the rotating shaft 8. Finally, it enters the spiral pipe through the exhaust pipe 15 at the top of the drying zone 1. Since the spiral pipe connected to the rotating shaft 6 and the spiral pipe connected to the exhaust pipe 15 are in contact, the hot air discharged through the exhaust pipe 15 undergoes heat exchange through the spiral pipe and the spiral pipe connected to the rotating shaft 6, preheating the cold air entering the heating device.

[0108] By utilizing hot air multiple times to dry tea leaves, the heat in the hot air can be effectively utilized. Since the hot air enters from drying zone three and flows through drying zone two and drying zone one in sequence, the tea leaves are dried in drying zone one, drying zone two and drying zone three in sequence. As a result, the humidity in the hot air in drying zone three, drying zone two and drying zone one gradually increases, thereby gradually removing the moisture from the tea leaves.

[0109] During use, the distance between the bottom of the partition 12 and the top of the drying bed 5 can be adjusted by sliding the partition 12 up and down as needed, thereby adjusting the gas flow between multiple drying zones. The adjusting nut is used to fix the position of multiple partitions 12.

[0110] The compact and symmetrical arrangement of side plates 1, 2, 3, 4, 5, 6, 7, 8, 9, and 10, along with the hollow structure design, ensures smooth hot air transfer between the components, guaranteeing rapid and uniform drying of the tea leaves.

[0111] A heating device is installed between the rotating shaft 6 and the spiral tube to fully heat the incoming gas; the heat exchange system between the rotating shaft 6 and the rotating shaft 8, which is connected by the spiral tube, is used to reuse the discharged hot gas, thereby greatly improving the efficiency of heat energy utilization and reducing energy consumption.

[0112] The feeding hopper (located on side plates 1 and 2 near the rotating shaft 8 and on the upper side of the drying bed 5) and the collecting box (located on side plates 1 and 2 near the rotating shaft 6 and on the lower side of the drying bed 5) enable automatic feeding and collection of tea leaves; the synchronous transmission mechanism and motor ensure the stable synchronous rotation of rotating shafts 6, 7, and 8, so that drums 9 and 10 continuously push the drying bed 5, ensuring that the tea leaves are evenly heated and dried during the rolling process.

[0113] The drying bed 5 is made of elastic material and is fixedly connected to a buffer layer made of breathable material. Combined with the tensioning effect of the elastic band 17, the drying bed 5 repeatedly bulges and rebounds under the action of the rollers 9 and 10, which effectively prevents the tea leaves from sticking together and ensures that the tea leaves are gently buffered during the movement, reducing the tea leaf breakage rate.

[0114] The combination of multiple partitions 12 and adjusting nuts allows for flexible adjustment of the airflow gap between each drying zone, ensuring uniform hot air distribution. The dust collection boxes 16 fixedly connected to the side plates 1 and 2 effectively collect dust and impurities generated during the drying process, keeping the equipment clean and further improving the drying effect.

[0115] In summary, by adding heating equipment, dust collection box 16, elastic band 17, synchronous transmission mechanism, motor, feeding hopper and collection box on the basis of Example 1, Example 2 not only achieves efficient and uniform drying of tea leaves, but also has multiple advantages such as continuous automated operation, energy saving and environmental protection and reduced tea leaf damage, further improving the intelligence and practicality of the overall device.

[0116] The above description is only a preferred embodiment of the present utility model. It should be understood that the present utility model is not limited to the form disclosed herein and should not be regarded as an exclusion of other embodiments. It can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present utility model should be protected within the scope of the appended claims.

Claims

1. A high-efficiency tea drying device, characterized in that, The device includes two symmetrically arranged side plates (1 and 2), with two symmetrically arranged adjusting rollers (3 and 4) rotatably connected between them. The outer ends of the adjusting rollers (3 and 4) are in contact with the same drying bed (5). A rotating shaft (6), a rotating shaft (7), and a rotating shaft (8) are rotatably connected between the side plate (2) and the adjusting roller (3). The upper and lower sides of the rotating shafts (6, 7, and 8) are fixedly connected to rollers (9 and 10) via pipes. The upper side of the drying bed (5) is equipped with an exhaust fan. The exhaust hood (11) has multiple partitions (12) slidably connected to it. The drying bed (5) and the rotating shaft three (8), rotating shaft two (7), and rotating shaft one (6) are respectively located in drying zone one, drying zone two, and drying zone three. The exhaust hood (11) is fixedly connected to the corresponding positions of drying zone one, drying zone two, and drying zone three, respectively. The exhaust pipe one (13), exhaust pipe two (14), and exhaust pipe three (15) are respectively fixedly connected to the corresponding positions of drying zone one, drying zone two, and drying zone three. The exhaust pipe one (13) is connected to the rotating shaft two (7) at one end away from the exhaust hood (11), and the exhaust pipe two (14) is connected to the rotating shaft three (8).

2. The high-efficiency tea drying device according to claim 1, characterized in that: The first (6), second (7) and third (8) rotating shafts are evenly distributed along the horizontal plane. The first (6), second (7), third (8), first (9) and second (10) rotating shafts are all hollow structures, and the hollow parts of the first (6), second (7) and third (8) rotating shafts are connected to the hollow parts of the corresponding first (9) and second (10) rotating shafts.

3. The high-efficiency tea drying device according to claim 2, characterized in that: When the first roller (9) or the second roller (10) rotates to the upper side of the corresponding first (6), second (7), or third (8) shaft, its outer end contacts the bottom end of the drying bed (5). The drying bed (5) is made of elastic material, and a buffer layer made of breathable material is fixedly connected to the top of the drying bed (5). The drying bed (5) has a porous structure.

4. The high-efficiency tea drying device according to claim 3, characterized in that: Axial flow fans are provided on exhaust pipe one (13), exhaust pipe two (14) and exhaust pipe three (15). Rotary shaft one (6) is connected to the external air intake system through a spiral tube. Rotary shaft three (8) is connected to the external exhaust system through a spiral tube. The spiral tubes connected to rotary shaft one (6) and rotary shaft three (8) are in contact with each other.

5. The high-efficiency tea drying device according to claim 2, characterized in that: A heating device is provided between the rotating shaft (6) and the spiral tube. A dust collection box (16) is fixedly connected between the side plate (1) and the side plate (2) at the position below the roller (9) and the roller (10). The drying bed (5) passes around the adjusting roller (3) and the adjusting roller (4) at both ends, and elastic bands (17) are fixedly connected between the drying bed (5) and the dust collection box (16).

6. The high-efficiency tea drying device according to claim 5, characterized in that: The elastic band (17) is made of elastic material. The first rotating shaft (6), the second rotating shaft (7), and the third rotating shaft (8) all penetrate the second side plate (2), and the penetrating parts are all fixedly connected to synchronous pulleys. The two adjacent synchronous pulleys are connected by a synchronous belt.

7. The high-efficiency tea drying device according to claim 6, characterized in that: A motor is fixedly connected to the side plate 2 (2) at the position corresponding to the rotating shaft 2 (7), and the motor power shaft is fixedly connected to the corresponding synchronous belt. Multiple through holes are opened at the ends of the roller 1 (9) and roller 2 (10) that are far apart from each other.

8. The high-efficiency tea drying device according to claim 7, characterized in that: A feed hopper is fixedly connected between side plate 1 (1) and side plate 2 (2) near one end of the rotating shaft 3 (8) and on the upper side of the drying bed (5). A collection box is fixedly connected between side plate 1 (1) and side plate 2 (2) near one end of the rotating shaft 1 (6) and on the lower side of the drying bed (5). Adjusting nuts are threadedly connected to the side plate 1 (1) and side plate 2 (2) at positions corresponding to multiple partitions (12).

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