Camellia seed drying device

Abstract

The invention relates to the technical field of drying equipment, in particular to a camellia seed drying device which comprises a sealed container, a drying barrel is slidably connected into the sealed container, a humidity detection assembly is arranged between the drying barrel and the sealed container, and a stirring assembly penetrating through the drying barrel is rotatably connected into the sealed container. A negative pressure assembly is installed at the position, close to the top of the sealed container, of the side wall of the sealed container, a driving assembly in transmission connection with the stirring assembly and the negative pressure assembly at the same time is installed on the sealed container, a hot air circulation assembly communicating with the stirring assembly is installed on the sealed container, and a feeding assembly is installed at the position, corresponding to the top of the drying barrel, of the sealed container. The bottom of the drying barrel is fixedly connected with a discharging assembly penetrating through the sealed container. The problems that in the drying process of tea oilseeds, drying is not uniform, efficiency is low, energy consumption is high, and the quality of the tea oilseeds is prone to decline can be effectively solved through cooperation of the stirring assembly, the negative pressure assembly and the hot air circulation assembly.

Description

Technical Field

[0001] The invention relates to the technical field of drying equipment, and in particular to a camellia seed drying device. Background Art

[0002] Tea seeds need to be dried before oil extraction to reduce their water content and facilitate subsequent storage and processing. Traditional drying methods include natural drying and hot air drying. Natural drying uses the heat of solar radiation and natural ventilation to evaporate the water in tea seeds. Hot air drying uses electric heaters, steam radiators, etc. to generate heat to increase the temperature, and uses ventilation equipment to promote hot air circulation to evaporate the water in tea seeds.

[0003] The drying effect of natural drying is not only limited by weather conditions, but also requires a long time to dry, and the uniformity of drying is difficult to control. Hot air drying not only requires continuous heat supply to maintain the circulation of hot air, but also consumes a lot of energy; it is also difficult to evenly and effectively control the temperature and humidity during the heating process. Too high a temperature can easily lead to the loss of nutrients in the oil tea seeds, and too low a temperature will reduce the drying efficiency.

[0004] Therefore, how to achieve efficient, uniform, low-energy consumption and quality-guaranteed drying of tea seeds is an urgent problem to be solved by technicians in this field. Summary of the invention

[0005] In order to solve the problems of uneven drying, low efficiency, high energy consumption and easy deterioration of tea seed quality during the drying process, the present application provides a tea seed drying device.

[0006] The camellia seed drying device provided in this application adopts the following technical solution: A tea seed drying device comprises a sealed container, a drying barrel is slidably connected to the inside of the sealed container, a humidity detection component is arranged between the drying barrel and the sealed container, a stirring component is rotatably connected to the inside of the sealed container and passes through the drying barrel, a negative pressure component is installed on the side wall of the sealed container near the top thereof, a driving component is installed on the sealed container and is transmission-connected to both the stirring component and the negative pressure component, a hot air circulation component is installed on the sealed container and is communicated with the stirring component, a feeding component is installed on the sealed container corresponding to the top of the drying barrel, and a discharging component passing through the sealed container is fixedly connected to the bottom of the drying barrel.

[0007] Furthermore, the humidity detection component includes a first fixed ring fixedly connected to the inside of the sealed container, a plurality of pressure sensors evenly distributed in a ring are fixedly mounted on the first fixed ring, a second fixed ring is fixedly connected to the top of the drying barrel corresponding to the first fixed ring, the second fixed ring is mounted on the pressure sensor, a plurality of limit rods evenly distributed in a ring are connected to the first fixed ring, the limit rod can slide through the second fixed ring, a spring is mounted on the limit rod, and the spring abuts between the first fixed ring and the second fixed ring.

[0008] Furthermore, the stirring assembly includes a vertically arranged central axis, which can movably pass through the drying barrel, the bottom of the central axis is rotatably connected to the bottom of the sealed container, the top of the central axis is rotatably connected to the top of the sealed container, the outer side of the central axis is fixedly connected with a spirally arranged stirring blade at a position corresponding to the inside of the drying barrel, the stirring blade is fixedly connected with a plurality of stirring rods radially arranged along the drying barrel, and the outer side of the central axis is transmission-connected to the driving assembly at a position close to the top of the sealed container.

[0009] Furthermore, the negative pressure assembly includes an eccentric disk rotatably connected to the top of the sealed container, the eccentric disk is transmission-connected to the drive assembly, a connecting rod is hingedly connected to the eccentric disk, a piston cylinder penetrating the side wall of the sealed container is fixedly and sealingly connected, a piston body is sealingly and slidingly connected inside the piston cylinder, the piston body is hingedly connected to the connecting rod, a one-way valve is fixedly and sealingly connected to one end of the piston cylinder located outside the sealed container, and an exhaust groove is provided on the outer side surface of the piston cylinder close to the inside of the sealed container.

[0010] Furthermore, the interior of the sealed container is fixedly and sealedly connected with an annular receiving plate, and the receiving plate is fixedly connected to the outside of the piston cylinder at a position flush with the bottom of the exhaust groove.

[0011] Furthermore, the driving assembly includes a driving motor, which is fixedly mounted on the outside of the sealed container. The sealed container is sealed and rotatably connected to a transmission shaft, one end of the transmission shaft located outside the sealed container is transmission-connected to the driving motor, and one end of the transmission shaft located inside the sealed container is fixedly mounted with a driving gear. A first driven gear is fixedly mounted on the stirring assembly inside the sealed container, and a second driven gear is fixedly mounted on the negative pressure assembly inside the sealed container. The first driven gear is meshed with the driving gear, and the second driven gear is meshed with the first driven gear.

[0012] Furthermore, the hot air circulation component includes a hot flow fan, which is fixedly installed on the top of the sealed container, and the air inlet and outlet ends of the hot flow fan are both fixedly and sealedly installed with air guide covers, the air guide cover near the air inlet of the hot flow fan is sealed with a ventilation pipe, and the ventilation pipe is installed with an electrically controlled negative pressure relief valve, and one end of the ventilation pipe away from the hot flow fan is fixedly and sealedly connected to the outside of the sealed container near the middle thereof; the air guide cover near the air outlet of the hot flow fan is sealed with a mounting seat, and the mounting seat is fixedly and sealedly installed on the top of the sealed container corresponding to the central axis, an air guide hole connected to the mounting seat is opened in the center of the central axis, a plurality of evenly distributed blowing holes are opened on the outside of the stirring rod, and the blowing holes are connected to the air guide holes, and a plurality of evenly distributed ventilation holes are opened on the side wall of the drying barrel.

[0013] Furthermore, the feed assembly includes a feed hopper, which is fixedly and sealingly installed on the sealed container, the lower end of the feed hopper passes through the top of the sealed container, and the upper end of the feed hopper is rotatably connected to a first sealing cover.

[0014] Furthermore, the discharge assembly includes a discharge pipe, which is fixedly connected to the bottom of the drying barrel, the outer side of the discharge pipe is slidably sealed to pass through the bottom of the sealed container, and the outer end of the discharge pipe is detachably connected to a second sealing cover.

[0015] Furthermore, the bottom of the sealed container is fixedly and sealedly connected with a drain valve.

[0016] The beneficial effects achieved are: The present application can synchronously drive the stirring component and the negative pressure component through the driving component, and can simultaneously deliver hot air into the drying barrel by using the hot air circulation component during the working process of the stirring component. So that the oil tea seeds are fully and evenly contacted with the hot air, ensuring that each oil tea seed can be affected by the hot air, making the drying more uniform and efficient. At the same time, the negative pressure environment formed by the negative pressure component can not only make the water in the oil tea seeds reach the boiling point and start to evaporate in a large amount in a shorter time at a lower temperature, thereby accelerating the overall process of drying and improving the drying efficiency. Moreover, the lower drying temperature can reduce the heat required for drying, thereby reducing the consumption of energy, such as electric energy, thermal energy, etc., saving drying costs and improving economic benefits. At the same time, drying at a relatively low temperature avoids excessive damage to the nutritional components of the oil tea seeds due to high temperature and long-term drying, better retains the original quality and nutritional value of the oil tea seeds, and is conducive to improving the quality of the tea oil squeezed out later. In addition, while the negative pressure component is continuously extracting air from the sealed container, it can also promptly extract hot air containing a large amount of water vapor, promoting the continuous and efficient drying process, improving drying efficiency, and also helping to reduce the moisture content of tea seeds after drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0018] Figure 2 It is a schematic diagram of the structural decomposition of an embodiment of the present application.

[0019] Figure 3 It is a schematic diagram of the internal structure of the first direction of an embodiment of the present application.

[0020] Figure 4 It is a schematic diagram of the internal structure of the second direction of an embodiment of the present application.

[0021] Figure 5 It is a schematic diagram of the installation structure decomposition of the humidity detection component in one embodiment of the present application.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of a stirring assembly in one embodiment of the present application.

[0023] Figure 7 It is a schematic diagram of the exploded installation structure of the negative pressure assembly in one embodiment of the present application.

[0024] Figure 8 It is a schematic diagram of the installation structure of the drive component in one embodiment of the present application.

[0025] Fig. 9 It is a schematic diagram of the installation structure decomposition of the hot air circulation component in one embodiment of the present application.

[0026] Description of reference numerals: 100, sealed container; 101, frame; 102, outer cylinder; 103, top cover plate; 200, drying barrel; 201, drain valve; 300, humidity detection assembly; 301, first fixing ring; 302, pressure sensor; 303, second fixing ring; 304, limit rod; 305, spring; 400, stirring assembly; 401, central axis; 402, stirring blade; 403, stirring rod; 500, negative pressure assembly; 501, eccentric disk; 502, connecting rod; 503, piston cylinder; 504, piston body; 505, one-way valve; 506, exhaust groove; 507, lead plate; 6 00, driving assembly; 601, driving motor; 602, transmission shaft; 603, driving gear; 604, first driven gear; 605, second driven gear; 606, first bevel gear; 607, second bevel gear; 700, hot air circulation assembly; 701, hot flow fan; 702, air guide cover; 703, ventilation pipe; 704, electric negative pressure relief valve; 705, mounting seat; 706, air guide hole; 707, blowing hole; 708, ventilation hole; 800, feeding assembly; 801, feeding hopper; 802, first sealing cover; 900, discharging assembly; 901, discharging pipe; 902, second sealing cover. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-9 This application is described in further detail.

[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The embodiment of the present application discloses a camellia seed drying device.

[0031] Please refer to Figures 1 to 9 In one embodiment of the present application, a tea seed drying device includes a sealed container 100, a drying barrel 200 is slidably connected inside the sealed container 100, a humidity detection component 300 is arranged between the drying barrel 200 and the sealed container 100, a stirring component 400 that penetrates the drying barrel 200 is rotatably connected inside the sealed container 100, a negative pressure component 500 is installed on the side wall of the sealed container 100 near its top, a driving component 600 that is transmission-connected to both the stirring component 400 and the negative pressure component 500 is installed on the sealed container 100, a hot air circulation component 700 that is connected to the stirring component 400 is installed on the sealed container 100, a feeding component 800 is installed on the sealed container 100 corresponding to the top of the drying barrel 200, and a discharging component 900 that penetrates the sealed container 100 is fixedly connected to the bottom of the drying barrel 200.

[0032] The implementation principle of a tea seed drying device in the embodiment of the present application is: First, the tea seeds to be dried are transported to the drying barrel 200 and sealed by the feeding assembly 800. The humidity detection assembly 300 arranged between the drying barrel 200 and the sealed container 100 monitors the humidity in the drying environment in real time. Then the driving assembly 600 and the hot air circulation assembly 700 are started.

[0033] The driving assembly 600 will drive the stirring assembly 400 to rotate in the drying barrel 200, and turn and stir the oil tea seeds; the hot air circulation assembly 700 will simultaneously deliver hot air into the drying barrel 200 during the operation of the stirring assembly 400, so that the oil tea seeds are fully and evenly contacted with the hot air, ensuring that each oil tea seed can be affected by the hot air, making the drying more uniform and efficient.

[0034] At the same time, the negative pressure component 500 installed near the top of the side wall of the sealed container 100 will also start working under the transmission connection of the driving component 600, continuously extracting air from the sealed container 100, so that a certain negative pressure environment is formed inside the sealed container 100 and the drying barrel 200.

[0035] In a negative pressure environment, the boiling point of water will decrease. After the boiling point of water is lowered, the moisture in the tea oil seeds can be quickly vaporized into water vapor by boiling at a lower temperature. The moisture in the tea oil seeds can reach the boiling point in a shorter time and begin to evaporate in large quantities, thereby speeding up the overall drying process and improving the drying efficiency. The moisture content of the tea oil seeds can be reduced to the ideal level more quickly, which is especially suitable for large-scale tea oil seed drying production and helps to improve production efficiency.

[0036] At the same time, lower drying temperature means that the required heat supply is relatively reduced, thereby reducing energy consumption, such as electricity, heat, etc., saving drying costs, improving economic benefits, and meeting the production requirements of energy conservation and emission reduction.

[0037] Camellia seeds contain a variety of nutrients, such as unsaturated fatty acids, tea polyphenols, camellia glycosides and squalene. These nutrients are easily destroyed or oxidized and decomposed at high temperatures. Drying at a relatively low temperature avoids excessive damage to the nutrients of camellia seeds due to long-term high-temperature drying, better preserves the original quality and nutritional value of camellia seeds, and is conducive to improving the quality of subsequent tea oil.

[0038] While the negative pressure component 500 continuously extracts air from the sealed container 100, it can also promptly extract hot air containing a large amount of water vapor, thereby promoting a continuous and efficient drying process, improving drying efficiency, and also helping to reduce the water content of the tea seeds after drying.

[0039] When the humidity detection component 300 detects that the humidity in the drying barrel 200 reaches the preset drying qualified standard, the control driving component 600 stops working, and the hot air circulation component 700 and the negative pressure component 500 also stop running. Then, the dried tea seeds are output from the bottom of the drying barrel 200 through the discharging component 900, and the drying operation of the tea seeds is completed.

[0040] In summary, the present application sets a stirring component 400, a negative pressure component 500, and a hot air circulation component 700 in a sealed container 100 and a drying barrel 200, and utilizes the mutual cooperation of the stirring component 400, the negative pressure component 500, and the hot air circulation component 700 to effectively solve the problems of uneven drying, low efficiency, high energy consumption, and easy deterioration of the quality of tea oil seeds during the drying process.

[0041] Please refer to Figures 1 to 9 In one embodiment of the present application, the sealed container 100 includes a frame 101, an outer cylinder 102 is detachably fixedly connected to the frame 101, a top cover plate 103 is detachably sealedly connected to the top of the outer cylinder 102, a feed assembly 800 is fixedly and sealably mounted on the top cover plate 103, and a discharge assembly 900 is slidably and sealably mounted on the bottom of the outer cylinder 102.

[0042] During operation, the frame 101 serves as the supporting structure of the entire sealed container 100, providing a solid foundation for the installation of subsequent components. The outer cylinder 102 is fixed to the frame 101 in a detachable manner. This detachable connection (such as bolt connection, slot connection, etc.) facilitates the installation, maintenance and overhaul of the equipment, and can be quickly disassembled when it is necessary to clean the inside of the cylinder or replace parts. The top cover plate 103 is also installed on the top of the outer cylinder 102 in a detachable sealing connection manner (such as a rubber sealing ring with a buckle or bolt) to ensure the sealing of the sealed container 100 during the drying process, prevent heat loss and external impurities from entering. The detachable connection between the frame 101 and the outer cylinder 102 and the top cover plate 103 greatly facilitates the initial assembly, subsequent maintenance and regular cleaning of the equipment.

[0043] Please refer to Figures 1 to 9 In one embodiment of the present application, a drain valve 201 is fixedly and sealedly connected to the bottom of the sealed container 100 .

[0044] During the drying process of the oil-tea camellia seeds, the water in the oil-tea camellia seeds will continue to evaporate due to the hot air heating the oil-tea camellia seeds. Even if the negative pressure component continuously extracts the air containing water vapor, some of the water vapor may still condense into liquid water at the bottom or inner wall of the sealed container 100 after being cooled. The drain valve 201 is fixedly sealed and connected to the bottom of the sealed container 100. When these condensed waters gather to a certain extent, the negative pressure is released after the oil-tea camellia seeds are dried, and the drain valve 201 is opened again. The liquid water will be discharged to the designated drainage area outside through the drain valve 201, thereby preventing the accumulated water from being retained in the sealed container 100 for a long time, affecting the normal operation of the drying equipment and the drying effect. When the drain valve 201 is in a closed state, it can prevent external air, impurities, etc. from entering the sealed container 100 through the drain port, and maintain a relatively stable drying environment inside the sealed container 100.

[0045] Please refer to Figures 1 to 9 In one embodiment of the present application, the humidity detection component 300 includes a first fixing ring 301 fixedly connected to the inside of the sealed container 100 by welding, and three pressure sensors 302 evenly distributed in a ring are fixedly installed on the first fixing ring 301. A second fixing ring 303 is fixedly connected to the top of the drying barrel 200 corresponding to the first fixing ring 301 by welding, and the second fixing ring 303 is mounted on the pressure sensor 302. Three limiting rods 304 are evenly distributed in a ring on the first fixing ring 301, and the limiting rod 304 can slide through the second fixing ring 303. A spring 305 is mounted on the limiting rod 304, and the spring 305 abuts between the first fixing ring 301 and the second fixing ring 303.

[0046] During operation, the first fixing ring 301 is firmly fixed to the inside of the sealed container 100, and three pressure sensors 302 evenly distributed in an annular shape are installed on the first fixing ring 301, forming a basic structure capable of sensing pressure changes. The second fixing ring 303 corresponding to the top of the drying barrel 200 is set on these pressure sensors 302, so that the weight of the drying barrel 200 and the weight of the tea seeds inside it are transmitted to the pressure sensors 302 through the second fixing ring 303.

[0047] The three limiting rods 304 evenly distributed in an annular manner on the first fixing ring 301 can slide through the second fixing ring 303, which plays a limiting role on the second fixing ring 303, ensuring that its movement in the up and down directions is carried out along the trajectory defined by the limiting rods 304, thereby ensuring the stability of the structure. At the same time, the spring 305 mounted on the limiting rod 304 abuts between the first fixing ring 301 and the second fixing ring 303, and the spring 305 provides an elastic supporting force. When the weight of the oil tea seeds in the drying barrel 200 changes (for example, during the drying process, as the water evaporates continuously, the total weight of the oil tea seeds gradually decreases), the second fixing ring 303 will produce a corresponding displacement change on the pressure sensor 302. When the weight is reduced, the spring 305 will push the second fixing ring 303 to move upward; conversely, if there is an additional force (such as adding oil tea seeds, etc.), the second fixing ring 303 will compress the spring 305 downward and move.

[0048] During the drying process, the evaporation of water in the tea seeds will gradually reduce the total weight of the drying barrel 200 and the internal materials. This weight change will cause the second fixed ring 303 to change the pressure on the pressure sensor 302. The pressure sensor 302 can convert the pressure change it feels into an electrical signal, and then transmit it to the control system connected to it, such as a controller or control circuit in the device. The control system can calculate the change in the moisture content of the tea seeds during the drying process based on the changes in the received pressure signal and the pre-set conversion relationship, that is, the association established based on the initial weight of the tea seeds, the weight range corresponding to different moisture contents, and other data, and then judge the progress of the drying and whether the predetermined drying requirements have been met.

[0049] This design cleverly utilizes the fact that the weight of camellia seeds changes with the evaporation of water during the drying process, and reflects the humidity conditions in an indirect way by detecting the weight change of the drying barrel 200. There is no need to directly set up a complex humidity sensor inside the drying barrel 200 to contact the camellia seeds and the hot air environment, thereby avoiding the problem of sensor failure or measurement accuracy affected by harsh environments such as high temperature and humidity, improving the reliability and stability of detection, and the structure is relatively simple, easy to implement and maintain.

[0050] The coordinated use of the limit rod 304 and the spring 305 not only ensures the stability of the second fixed ring 303 during the up and down movement, so that the pressure can be accurately transmitted to the pressure sensor 302, but also can prevent the pressure sensor 302 from being damaged by sudden and excessive force due to possible external interference factors such as slight vibrations and impacts through the elastic buffering of the spring 305, which helps to ensure that the pressure sensor 302 can accurately measure pressure changes in the long term, thereby improving the accuracy of humidity detection and providing strong data support for the precise control of the drying process.

[0051] The arrangement of three pressure sensors 302 evenly distributed in an annular shape enables the pressure transmitted by the second fixing ring 303 to be shared and sensed by the three pressure sensors 302, thereby ensuring uniform force and avoiding partial sensor overload or inaccurate measurement due to local uneven force. In this way, the weight change of the drying barrel 200 can be fully sensed from three angles, more accurately reflecting the overall humidity change, which is conducive to more accurate judgment of the drying degree and ensuring that the tea seed drying achieves the ideal effect.

[0052] Please refer to Figures 1 to 9 In one embodiment of the present application, the stirring component 400 includes a vertically arranged central axis 401, and the central axis 401 can movably penetrate the drying barrel 200. The bottom of the central axis 401 is rotatably connected to the bottom of the sealed container 100, and the top of the central axis 401 is rotatably connected to the top of the sealed container 100. The outer side of the central axis 401 is fixedly connected with a spirally arranged stirring blade 402 at a position corresponding to the inside of the drying barrel 200, and the stirring blade 402 is fixedly connected with a plurality of stirring rods 403 arranged radially along the drying barrel 200. The outer side of the central axis 401 is transmission-connected to the driving component 600 near the top of the sealed container 100.

[0053] During operation, the driving assembly 600, as a power source, transmits power to the position of the central shaft 401 near the top of the sealed container 100, so that the central shaft 401 can rotate around its own vertical axis. The bottom of the central shaft 401 is rotatably connected to the bottom of the sealed container 100, and the top is rotatably connected to the top of the sealed container 100. Such a structural design provides a stable rotation support for the central shaft 401, ensuring that it can maintain good coaxiality during the rotation process and perform a smooth rotation motion.

[0054] When the central axis 401 rotates, the spirally arranged stirring blade 402 fixedly connected to its outer side and located inside the drying barrel 200 also rotates synchronously. The rotation of the spiral stirring blade 402 will produce an upward and downward pushing effect on the oil tea seeds in the drying barrel 200, causing the oil tea seeds to form an up and down flipping motion state in the drying barrel 200, so that the oil tea seeds can be fully mixed and moved in the vertical direction, and the oil tea seeds are prevented from accumulating at the bottom of the barrel or in a local area. At the same time, a number of stirring rods 403 fixedly connected to the stirring blade 402 and arranged radially along the drying barrel 200 also rotate together, and the stirring rods 403 will stir and stir the oil tea seeds in the horizontal direction, further breaking the possible agglomeration state of the oil tea seeds, so that the oil tea seeds can also be evenly dispersed in the horizontal direction.

[0055] During the process of hot air circulation component 700 conveying hot air into drying barrel 200 for drying, the all-round stirring action of stirring component 400 enables the oil tea seeds to be fully and evenly contacted with the hot air. The hot air can reach the surface of each oil tea seed, more efficiently absorb the moisture in the oil tea seed and take it out, thereby improving the drying effect and efficiency, ensuring that all parts of the oil tea seeds can be dried evenly, and avoiding the situation where some parts are not dried fully or are over-dried.

[0056] This design achieves all-round mixing and stirring of the tea seeds in the drying barrel 200 through the up and down flipping action of the spiral stirring blade 402 and the horizontal shifting action of the stirring rod 403, ensuring that each tea seed can fully contact with the hot air, greatly improving the uniformity of drying.

[0057] Please refer to Figures 1 to 9 In one embodiment of the present application, the negative pressure assembly 500 includes an eccentric disk 501 rotatably connected to the top of the sealed container 100, the eccentric disk 501 is transmission-connected to the driving assembly 600, a connecting rod 502 is hingedly connected to the eccentric disk 501, a piston cylinder 503 penetrating the side wall of the sealed container 100 is fixedly and sealedly connected, a piston body 504 is sealingly and slidingly connected inside the piston cylinder 503, the piston body 504 is hingedly connected to the connecting rod 502, a one-way valve 505 is fixedly and sealedly connected to one end of the piston cylinder 503 located outside the sealed container 100, and an exhaust groove 506 is provided on the outer side of the piston cylinder 503 close to the inside of the sealed container 100.

[0058] During operation, the driving assembly 600, as the power source of the entire device, transmits power to the eccentric disk 501, causing the eccentric disk 501 to rotate around its rotation center. Since the eccentric disk 501 and the connecting rod 502 are hingedly connected, the rotation of the eccentric disk 501 drives the connecting rod 502 to swing back and forth. The other end of the connecting rod 502 is hingedly connected to the piston body 504 in the piston cylinder 503, so the reciprocating swing of the connecting rod 502 drives the piston body 504 to slide back and forth in a sealed manner along the cylinder wall inside the piston cylinder 503.

[0059] When the piston body 504 slides toward the interior of the sealed container 100, a negative pressure zone will be formed in the space inside the piston cylinder 503 away from the end of the sealed container 100. After the piston body 504 passes through the exhaust groove 506, the air inside the sealed container 100 (including the hot air containing more water vapor generated during the drying process) will enter the interior of the piston cylinder 503 through the exhaust groove 506, thereby realizing the process of extracting air from the sealed container 100.

[0060] When the piston body 504 slides in a direction away from the inside of the sealed container 100 (i.e., slides toward the end of the piston cylinder 503 outside the sealed container 100), the air in the piston cylinder 503 will be squeezed out. Since the end of the piston cylinder 503 outside the sealed container 100 is fixedly sealed and connected with a one-way valve 505, the design of the one-way valve 505 allows the air to be discharged to the outside and cannot flow back, so the squeezed air will be discharged into the external environment through the one-way valve 505. The air is discharged once.

[0061] As the eccentric disk 501 continues to rotate, the piston body 504 will continue to slide back and forth, thereby continuously extracting air from the sealed container 100 and discharging it to the outside, so that the inside of the sealed container 100 can maintain a certain negative pressure state to meet the demand for a negative pressure environment during the drying process of tea seeds.

[0062] Please refer to Figures 1 to 9 In one embodiment of the present application, the interior of the sealed container 100 is fixedly and sealedly connected with a ring-shaped receiving plate 507, and the receiving plate 507 is fixedly connected to the outer side of the piston cylinder 503 at a position flush with the bottom of the exhaust groove 506.

[0063] During operation, when the piston body 504 slides in a direction away from the inside of the sealed container 100, the air (including hot water vapor) inside the sealed container 100 will enter the piston cylinder 503 through the exhaust groove 506. The guide plate 507 is annularly arranged inside the sealed container 100 and connected to the outside of the piston cylinder 503, and its position is flush with the bottom of the exhaust groove 506. In this way, the guide plate 507 can play a role in guiding air, so that the air inside the sealed container 100 flows into the exhaust groove 506 more smoothly. Just like a guide device, it gathers and guides the surrounding air to the exhaust groove 506, thereby improving the efficiency of air extraction.

[0064] The receiving plate 507 is fixedly and sealedly connected to the inside of the sealed container 100, and it can also prevent impurities (such as tea seed debris, dust, etc.) during the drying process from entering the piston cylinder 503 to a certain extent. Since it covers the bottom of the exhaust groove 506, it acts as a barrier, making it difficult for impurities to be directly sucked into the exhaust groove 506, thereby reducing the possibility of clogging the inside of the piston cylinder 503 and the one-way valve 505 and other components, and ensuring the normal operation of the negative pressure assembly 500.

[0065] Please refer to Figures 1 to 9 In one embodiment of the present application, the driving assembly 600 includes a driving motor 601, which is fixedly mounted on the outside of the sealed container 100. A transmission shaft 602 is sealingly and rotatably connected to the sealed container 100. One end of the transmission shaft 602 located outside the sealed container 100 is transmission-connected to the driving motor 601. A driving gear 603 is fixedly mounted on one end of the transmission shaft 602 located inside the sealed container 100. A first driven gear 604 is fixedly mounted on the stirring assembly 400 inside the sealed container 100. A second driven gear 605 is fixedly mounted on the negative pressure assembly 500 inside the sealed container 100. The first driven gear 604 is meshed with the driving gear 603, and the second driven gear 605 is meshed with the first driven gear 604.

[0066] During operation, the drive motor 601 is installed outside the sealed container 100 as the power source of the entire drive assembly 600. When the drive motor 601 is powered on and starts to operate, the output shaft of the motor generates rotational power. Since one end of the transmission shaft 602 located outside the sealed container 100 is connected to the drive motor 601, the power generated by the drive motor 601 is transmitted to the transmission shaft 602, causing the transmission shaft 602 to start rotating around its axis.

[0067] A driving gear 603 is fixedly installed at one end of the transmission shaft 602 located inside the sealed container 100. As the transmission shaft 602 rotates, the driving gear 603 rotates synchronously. The first driven gear 604 fixedly installed on the central shaft 401 of the stirring assembly 400 meshes with the driving gear 603. According to the gear transmission principle, the rotation of the driving gear 603 drives the first driven gear 604 to rotate, thereby causing the stirring assembly 400 to start working. The central shaft 401 drives the stirring blade 402 and the stirring rod 403 to stir the oil tea seeds in the drying barrel 200, thereby turning and mixing the materials, promoting full contact between the oil tea seeds and the hot air, and facilitating the drying process.

[0068] At the same time, the second driven gear 605 fixedly mounted on the eccentric disk 501 of the negative pressure assembly 500 is also meshed with the first driven gear 604, and the rotation of the first driven gear 604 further drives the second driven gear 605 to rotate, thereby providing power for the negative pressure assembly 500. After the negative pressure assembly 500 obtains power, the eccentric disk 501 starts to rotate, and the piston body 504 is driven to slide back and forth in the piston cylinder 503 through the connecting rod 502, thereby realizing the air extraction operation inside the sealed container 100 and creating the negative pressure environment required for drying.

[0069] When the driving motor 601 is running continuously, through the above-mentioned gear transmission system, the stirring component 400 and the negative pressure component 500 can work synchronously and continuously, and cooperate with the hot air circulation component 700. The hot air circulation component 700 delivers hot air to the drying barrel 200, the stirring component 400 makes the tea seeds evenly heated, and the negative pressure component 500 extracts air containing water vapor. The three work together to complete the efficient drying of the tea seeds.

[0070] Please refer to Figures 1 to 9 In one embodiment of the present application, the transmission connection between the transmission shaft 602 and the drive motor 601 includes a first bevel gear 606, the first bevel gear 606 is fixedly mounted on the drive motor 601, and a second bevel gear 607 is fixedly mounted on the transmission shaft 602, and the first bevel gear 606 and the second bevel gear 607 are meshed for transmission.

[0071] During operation, when the drive motor 601 is started, the first bevel gear 606 mounted on the drive motor 601 starts to rotate with the motor shaft. The first bevel gear 606 and the second bevel gear 607 fixedly mounted on the transmission shaft 602 are meshed with each other. According to the transmission principle of the bevel gear, the rotational motion of the first bevel gear 606 can be transmitted to the second bevel gear 607, and due to the characteristics of the bevel gear, the transmission direction of the power can be changed while transmitting the power. The use of bevel gear transmission can change the transmission direction of the power, which provides great flexibility for the spatial layout of the entire device. In practical applications, it is conducive to improving the installation space and maintenance convenience of the overall equipment.

[0072] Please refer to Figures 1 to 9 In one embodiment of the present application, the hot air circulation component 700 includes a hot air blower 701, which is fixedly installed on the top of the sealed container 100. The air inlet and air outlet ends of the hot air blower 701 are fixedly and sealedly installed with an air guide cover 702. The air guide cover 702 near the air inlet end of the hot air blower 701 is sealed and connected with a ventilation pipe 703. The ventilation pipe 703 is installed with an electrically controlled negative pressure relief valve 704. One end of the ventilation pipe 703 away from the hot air blower 701 is fixedly and sealedly connected to the sealed container 100. The outer side is close to the middle position; the air guide cover 702 near the air outlet end of the hot flow blower 701 is sealed with a mounting seat 705, and the mounting seat 705 is fixedly and sealedly installed on the top of the sealed container 100 corresponding to the central axis 401. The center of the central axis 401 is provided with an air guide hole 706 connected with the mounting seat 705, and the outer side of the stirring rod 403 is provided with a plurality of evenly distributed blowing holes 707, and the blowing holes 707 are connected with the air guide holes 706. The side wall of the drying barrel 200 is provided with a plurality of evenly distributed ventilation holes 708.

[0073] During operation, the heat flow fan 701 starts to work after being started. At its air inlet end, due to the rotation of the fan impeller, a negative pressure area is formed at the air inlet end wind guide cover 702, and the outside air is sucked into the heat flow fan 701 through the ventilation pipe 703 under the action of atmospheric pressure. The electrically controlled negative pressure relief valve 704 installed on the ventilation pipe 703 can regulate the negative pressure in the ventilation pipe 703. When the negative pressure in the ventilation pipe 703 is too large, the relief valve can automatically open to relieve pressure to an appropriate degree, ensuring that air can be smoothly inhaled, and avoiding the influence of excessive negative pressure on air inhalation efficiency.

[0074] The air sucked into the hot flow fan 701 is heated by the heating component inside the hot flow fan 701 and turned into hot air, and then the hot air is discharged from the air outlet of the hot flow fan 701. The air guide cover 702 at the air outlet guides the hot air, and the hot air enters the mounting seat 705 which is sealed and connected thereto. The mounting seat 705 is connected to the air guide hole 706 at the top of the central axis 401, and the hot air enters the interior of the central axis 401 along the air guide hole 706, and then is transmitted downward along the central axis 401. Since a number of evenly distributed blowing holes 707 are provided on the outside of the stirring rod 403, and the blowing holes 707 are connected to the air guide holes 706, the hot air will be blown out from these blowing holes 707 and blow directly to the oil tea seeds in the drying barrel 200 to heat and dry them.

[0075] At the same time, a number of evenly distributed ventilation holes 708 are opened on the side wall of the drying barrel 200. After the hot air heats the camellia seeds, it carries the water vapor evaporated from the camellia seeds and is discharged into the sealed container 100 through these ventilation holes 708. Under the action of the negative pressure at the air inlet end of the hot air blower 701, the air in the sealed container 100 is sucked into the hot air blower 701 again through the ventilation pipe 703 for heating circulation, thus forming a complete hot air circulation loop, which continuously provides heat for drying the camellia seeds and takes away the evaporated water.

[0076] The hot air is blown directly toward the tea seeds through the central axis 401 and the blowing holes 707 on the stirring rod 403, and under the stirring action of the stirring component 400 (the rotation of the stirring blade 402 and the stirring rod 403 causes the tea seeds to turn over continuously), the hot air can fully and evenly contact each tea seed, avoiding uneven local heating, ensuring that the tea seeds as a whole can be efficiently and evenly heated and dried, which is beneficial to improving the drying quality and making the moisture content of the dried tea seeds more uniform.

[0077] The hot air circulation loop formed by the hot air circulation component 700 allows the hot air to be reused repeatedly. After heating the tea seeds, the hot air is discharged with water vapor and can be re-inhaled into the hot flow fan 701 for heating and circulation again, reducing heat loss and waste, improving the utilization rate of thermal energy, and thus reducing energy consumption in the drying process to a certain extent, meeting the production requirements of energy conservation and consumption reduction, and can save considerable costs for long-term and large-scale tea seed drying operations.

[0078] The setting of the electric-controlled negative pressure relief valve 704 can flexibly control the amount of air entering the hot air blower 701 according to the actual situation during the drying process, such as the air flow rate and negative pressure size in the ventilation pipe 703. By adjusting the opening degree of the relief valve, the amount of air entering the hot air blower 701 and the parameters such as the wind pressure of the entire hot air circulation system can be controlled, and then the drying environment can be flexibly adjusted according to the different drying stages and different water contents of the oil tea seeds, and the drying effect can be optimized.

[0079] In a specific embodiment of the present application, the heat flow fan 701 adopts an electric heating type heat flow fan, which converts electrical energy into thermal energy through an electric heating element (such as a heating wire, a PTC ceramic heating element, etc.) to heat the air passing through. When current passes through the electric heating element, heat is generated according to Joule's law, and the temperature of the air rises after absorbing this heat. The temperature control of the electric heating type heat flow fan is relatively accurate and can achieve constant temperature heating.

[0080] Of course, in other embodiments of the present application, the hot flow fan 701 can also adopt a direct-fired hot flow fan, an indirect heating hot flow fan, etc. The direct-fired hot flow fan directly heats the air by burning fuel (such as natural gas, liquefied gas, etc.). The fuel is fully burned in the combustion chamber, and the high-temperature flame and hot air generated are directly mixed with the air introduced by the fan, which can greatly increase the air temperature in a short time. The indirect heating hot flow fan uses a heat exchanger to heat the air, and the heat generated by the combustion is transferred to the air flowing through the wall of the heat exchanger to heat the air. This method ensures that the exhaust gas generated by the combustion is isolated from the heated air, and prevents the combustion products (such as carbon monoxide, incompletely burned fuel particles, etc.) from mixing into the hot air.

[0081] In a specific implementation of the present application, the electrically controlled negative pressure relief valve 704 includes a valve body, a valve core, a seal, a drive device, a pressure sensor, and a control system.

[0082] During operation, when the pressure inside the sealed container 100 is normal, that is, the pressure is higher than the negative pressure threshold set by the pressure relief valve, the pressure signal detected by the pressure sensor is fed back to the control system, and the control system determines that there is no need for pressure relief. At this time, the drive device keeps the valve core in the closed position, and the hot air with water vapor maintains a stable flow and pressure state in the hot air circulation component 700. When the pressure inside the sealed container 100 decreases with the continuous operation of the negative pressure component 500, that is, the pressure is lower than the negative pressure threshold set by the pressure relief valve, the pressure sensor transmits the detected low pressure signal to the control system. After receiving the signal, the control system sends an opening command to the drive device after processing and judgment. After receiving the command, the drive device drives the valve core to move, opens the pressure relief channel to allow external air to enter the hot air circulation component 700, so as to maintain the normal flow and pressure state of the hot air.

[0083] Please refer to Figures 1 to 9 In one embodiment of the present application, the feed assembly 800 includes a feed hopper 801, which is fixedly and sealedly installed on the sealed container 100, the lower end of the feed hopper 801 passes through the top of the sealed container 100, and the upper end of the feed hopper 801 is rotatably connected to a first sealing cover 802.

[0084] During operation, when it is necessary to add tea seeds to the drying barrel 200, the first sealing cover 802 at the upper end of the feed hopper 801 is opened, and the tea seeds are poured into the feed hopper 801. Since the lower end of the feed hopper 801 penetrates the top of the sealed container 100, the tea seeds fall into the drying barrel 200 inside the sealed container 100 through the feed hopper 801 under the action of their own gravity. The feed hopper 801 plays a guiding and transitional role, smoothly transporting the tea seeds from the outside to the inside of the drying equipment. When not feeding, the first sealing cover 802 is closed and tightly connected to the upper end of the feed hopper 801 in rotation. This rotation connection method (for example, connected by a hinge) facilitates the opening and closing operation of the sealing cover. When the first sealing cover 802 is closed, in addition to ensuring that the negative pressure environment inside the sealed container 100 is not destroyed, it can also prevent external dust, impurities and moisture from entering the feed hopper 801, thereby preventing these foreign objects from entering the tea seeds being dried, thereby ensuring the purity of the drying process and the quality of the tea seeds after drying.

[0085] Please refer to Figures 1 to 9 In one embodiment of the present application, the discharge assembly 900 includes a discharge pipe 901, which is fixedly connected to the bottom of the drying barrel 200. The outer side of the discharge pipe 901 can be slidably sealed to pass through the bottom of the sealed container 100, and the outer end of the discharge pipe 901 is detachably connected to a second sealing cover 902.

[0086] During operation, when the oil-tea seed is dried and needs to be taken out of the drying device, the discharge assembly 900 must be operated first. At this time, the second sealing cover 902 detachably connected to the outer end of the discharge pipe 901 is removed to release the sealing restriction on the outlet of the discharge pipe 901. The outer side of the discharge pipe 901 is slidably sealed and connected to the bottom of the sealed container 100. This sliding sealing structure (such as using a sealing rubber sleeve to achieve sealing, while ensuring that the discharge pipe 901 can slide relative to the sealed container 100) enables the discharge pipe 901 to maintain the sealing between the sealed container 100 and to perform appropriate position adjustment or movement operation when detecting humidity and weighing. Since the oil-tea seed in the drying barrel 200 is at its bottom after drying, when the second sealing cover 902 is removed, under the action of gravity, the dried oil-tea seed will flow out naturally along the discharge pipe 901 to achieve the discharge operation.

[0087] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tea seed drying device, characterized in that: The invention comprises a sealed container (100), wherein a drying barrel (200) is slidably connected inside the sealed container (100), a humidity detection component (300) is arranged between the drying barrel (200) and the sealed container (100), a stirring component (400) which passes through the drying barrel (200) is rotatably connected inside the sealed container (100), a negative pressure component (500) is installed on the side wall of the sealed container (100) near the top thereof, a driving component (600) which is transmission-connected to both the stirring component (400) and the negative pressure component (500) is installed on the sealed container (100), a hot air circulation component (700) which is connected to the stirring component (400) is installed on the sealed container (100), a feeding component (800) is installed on the sealed container (100) corresponding to the top of the drying barrel (200), and a discharging component (900) which passes through the sealed container (100) is fixedly connected to the bottom of the drying barrel (200).

2. The camellia seed drying device according to claim 1, characterized in that: The humidity detection component (300) comprises a first fixing ring (301) fixedly connected to the inside of the sealed container (100), a plurality of pressure sensors (302) uniformly distributed in an annular shape are fixedly mounted on the first fixing ring (301), a second fixing ring (303) is fixedly connected to the top of the drying barrel (200) corresponding to the first fixing ring (301), the second fixing ring (303) is mounted on the pressure sensor (302), a plurality of limiting rods (304) uniformly distributed in an annular shape are connected to the first fixing ring (301), the limiting rods (304) can slidably penetrate the second fixing ring (303), a spring (305) is sleeved on the limiting rod (304), and the spring (305) abuts between the first fixing ring (301) and the second fixing ring (303).

3. The camellia seed drying device according to claim 1, characterized in that: The stirring assembly (400) includes a vertically arranged central axis (401), the central axis (401) can movably pass through the drying barrel (200), the bottom of the central axis (401) is rotatably connected to the bottom of the sealed container (100), the top of the central axis (401) is rotatably connected to the top of the sealed container (100), the outer side of the central axis (401) is fixedly connected with a spirally arranged stirring blade (402) at a position corresponding to the inside of the drying barrel (200), the stirring blade (402) is fixedly connected with a plurality of stirring rods (403) radially arranged along the drying barrel (200), and the outer side of the central axis (401) is transmission-connected to the driving assembly (600) at a position close to the top of the sealed container (100).

4. The camellia seed drying device according to claim 1, characterized in that: The negative pressure assembly (500) comprises an eccentric disk (501) rotatably connected to the top of the sealed container (100), the eccentric disk (501) being transmission-connected to the driving assembly (600), a connecting rod (502) being hingedly connected to the eccentric disk (501), a piston cylinder (503) penetrating the side wall of the sealed container (100) being fixedly and sealably connected, a piston body (504) being sealingly and slidably connected inside the piston cylinder (503), the piston body (504) being hingedly connected to the connecting rod (502), a one-way valve (505) being fixedly and sealably connected to one end of the piston cylinder (503) located outside the sealed container (100), and an exhaust groove (506) being provided on the outer side surface of the piston cylinder (503) at one end close to the inside of the sealed container (100).

5. The camellia seed drying device according to claim 4, characterized in that: The inside of the sealed container (100) is fixedly and sealedly connected to a ring-shaped receiving plate (507), and the receiving plate (507) is fixedly connected to the outside of the piston cylinder (503) at a position flush with the bottom of the exhaust groove (506).

6. The camellia seed drying device according to claim 1, characterized in that: The driving assembly (600) comprises a driving motor (601), wherein the driving motor (601) is fixedly mounted outside the sealed container (100), a transmission shaft (602) is sealingly and rotatably connected to the sealed container (100), one end of the transmission shaft (602) located outside the sealed container (100) is transmission-connected to the driving motor (601), one end of the transmission shaft (602) located inside the sealed container (100) is fixedly mounted with a driving gear (603), a first driven gear (604) is fixedly mounted on the stirring assembly (400) inside the sealed container (100), a second driven gear (605) is fixedly mounted on the negative pressure assembly (500) inside the sealed container (100), the first driven gear (604) is meshed with the driving gear (603), and the second driven gear (605) is meshed with the first driven gear (604).

7. The camellia seed drying device according to claim 3, characterized in that: The hot air circulation component (700) comprises a hot air blower (701), the hot air blower (701) being fixedly mounted on the top of the sealed container (100), an air guide cover (702) being fixedly and sealedly mounted on both the air inlet end and the air outlet end of the hot air blower (701), a ventilation pipe (703) being sealedly connected to the air guide cover (702) near the air inlet end of the hot air blower (701), an electrically controlled negative pressure relief valve (704) being mounted on the ventilation pipe (703), and one end of the ventilation pipe (703) away from the hot air blower (701) being fixedly and sealedly connected to a position near the middle of the outer side of the sealed container (100). The air guide cover (702) near the air outlet end of the hot flow blower (701) is sealed with a mounting seat (705), the mounting seat (705) is fixedly and sealedly mounted on the top of the sealed container (100) corresponding to the central axis (401), the center of the central axis (401) is provided with an air guide hole (706) connected to the mounting seat (705), the outer side of the stirring rod (403) is provided with a plurality of evenly distributed blowing holes (707), the blowing holes (707) are connected to the air guide holes (706), and the side wall of the drying barrel (200) is provided with a plurality of evenly distributed ventilation holes (708).

8. The camellia seed drying device according to claim 1, characterized in that: The feed assembly (800) comprises a feed hopper (801), wherein the feed hopper (801) is fixedly and sealedly mounted on the sealed container (100), the lower end of the feed hopper (801) passes through the top of the sealed container (100), and the upper end of the feed hopper (801) is rotatably connected to a first sealing cover (802).

9. The camellia seed drying device according to claim 1, characterized in that: The discharge assembly (900) includes a discharge pipe (901), which is fixedly connected to the bottom of the drying barrel (200), and the outer side of the discharge pipe (901) is slidably sealed to pass through the bottom of the sealed container (100), and the outer end of the discharge pipe (901) is detachably connected to a second sealing cover (902).

10. The camellia seed drying device according to any one of claims 1 to 9, characterized in that: The bottom of the sealed container (100) is fixedly and sealedly connected with a drain valve (201).

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