A seed drying device

Abstract

The present invention belongs to the field of seed drying, specifically a seed drying device, including a drying mechanism, a conveying mechanism, a separation mechanism, a pneumatic mechanism and a recovery device. A drying mechanism is set up, and clean river sand is added into the drying chamber by means of intermediate heat conduction. The river sand is heated and ventilated to form a fluidized layer. With the help of the flow characteristics of the fluidized layer, the seeds are floated above the river sand, and the heat radiation transfer of the river sand and the flowing airflow are used to dry the seeds. Compared with direct hot air drying, the heat conduction efficiency is higher, the heat loss is small, the temperature is stable and the heat preservation time is long, which solves the technical problem of low drying efficiency in the existing drying method; a recovery device is set up to wash and screen the seeds that are not completely dried, and transport them to the conveying mechanism through a conveyor belt, and re-load them for drying, avoiding the technical problem of insufficient seed drying.

Description

Technical Field

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

[0002] Seed processing refers to a series of treatments performed on crop seeds to improve their quality, germination rate and adaptability. These treatment steps include cleaning, drying, grading, shelling, peeling, and seed coating, which are designed to ensure the best growth effect of seeds after sowing. After the seeds are harvested, if they are not dried in time, they will quickly heat up and deteriorate. During storage, they will start to mold at a moisture content of 12% to 14%, start to heat up at a moisture content of 16%, and start to germinate at 35% to 60%. Therefore, whether the seeds can be dried in time is an indispensable condition for producing high-quality seeds.

[0003] Existing seed drying methods are mainly divided into open-air natural drying and mechanical equipment drying. Natural drying is simple and easy, with low cost, but it is limited by weather conditions, the drying time varies, and it is difficult to control the degree of drying; mechanical drying cannot ensure that every seed is dried evenly, resulting in some seeds being over-dried while other seeds still maintain a high humidity, thus affecting the overall seed quality. In addition, traditional fluidized drying uses air as a drying medium to transfer heat through convection and radiation, but in order to maintain a stable fluidized layer, a higher wind speed is required, but this results in a short hot air contact time and low heat transfer efficiency. Therefore, traditional fluidized drying equipment has technical problems such as long drying time and low drying efficiency. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a seed drying device. In order to solve the technical problem of low drying efficiency in the existing drying method, a drying mechanism is set, and an intermediate heat conduction method is adopted. Clean river sand is added in the drying chamber, and the river sand is heated and ventilated to form a fluidized layer. With the help of the flow characteristics of the fluidized layer, the seeds are floated above the river sand, and the heat radiation transfer of the river sand and the flowing airflow are used to dry the seeds. Compared with direct use of hot air for drying, the thermal conductivity efficiency is higher, the heat loss is small, the temperature is stable and the insulation time is long, which greatly improves the drying efficiency and is more energy-saving.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a seed drying device, including a drying mechanism, a conveying mechanism, a separation mechanism, a pneumatic mechanism and a recovery device, wherein the conveying mechanism is arranged on one side of the drying mechanism, the separation mechanism is arranged on the drying mechanism, the pneumatic mechanism is arranged on the other side of the drying mechanism, and the recovery device is arranged behind the separation mechanism.

[0006] Furthermore, the drying mechanism includes a drying chamber, a heating chamber and a drying base, the drying base is installed on the ground, the heating chamber is arranged above the drying base, the drying chamber is arranged above the heating chamber, a partition plate is provided between the drying chamber and the heating chamber, and the drying chamber is pre-filled with clean river sand.

[0007] The drying base comprises a base, an air shock absorber, a vibration base and a vibration motor. The base is installed on the ground, the air shock absorber is arranged on the base, the vibration base is arranged on the air shock absorber, and the vibration motor is arranged at the bottom of the vibration base.

[0008] As a further preferred embodiment of the present invention, a gas supply interface is provided on the partition plate, a gas supply hole is provided on the gas supply interface, and a sand-proof film is provided on the lower surface of the gas supply interface.

[0009] As a further preferred embodiment of the present invention, a ceramic heating plate is provided at the bottom of the partition plate, and the ceramic heating plate is used to heat the materials in the drying chamber, thereby reducing heat consumption and improving energy efficiency.

[0010] Furthermore, an air intake passage is provided on the side wall of the heating chamber.

[0011] Furthermore, a discharging wheel is rotatably provided in the drying chamber, a pushing plate is slidably provided in the drying chamber, an exhaust passage is provided on the top of the drying chamber, and a discharging passage is provided on the side wall of the drying chamber, and the seeds are thrown out of the discharging passage through the discharging wheel.

[0012] As a further preferred embodiment of the present invention, a discharging unit is provided on one side of the drying chamber, and the discharging unit is transmission connected to the discharging wheel via a universal transmission rod; the universal transmission rod comprises a main rod, a sub-rod, a buffer spring and a universal joint, one end of the main rod is transmission connected to the output end of the discharging unit via a universal joint, the other end of the main rod is slidingly connected to one end of the sub-rod, one end of the buffer spring is fixedly connected to the main rod, the other end of the buffer spring is fixedly connected to the sub-rod, and the other end of the sub-rod is transmission connected to the discharging wheel via a universal joint.

[0013] Furthermore, the conveying mechanism includes a conveying channel, a conveying auger, a conveying motor, a feed hopper and a recovery interface, the feed hopper is arranged on one side of the drying mechanism, the bottom of the conveying channel is connected with the feed hopper, the conveying auger is rotatably arranged in the conveying channel, the conveying motor is arranged at the top of the conveying channel, the conveying motor is transmission-connected with the conveying auger, the top of the conveying channel is connected with the drying cabin, the recovery interface is arranged in the middle of the conveying channel, and the conveying mechanism is mainly used to deliver seeds into the drying mechanism.

[0014] Furthermore, the separation mechanism includes a separation cabin, a screening plate, a docking port, a recovery port and a discharge port. The separation cabin is arranged on the side wall of the drying cabin, the screening plate is arranged in the separation cabin, the docking port is arranged on the separation cabin, the docking port is communicated with the discharge channel, the discharge port is arranged on one side of the separation cabin, and the recovery port is arranged on the other side of the separation cabin. Through the vibration of the separation cabin, the screening plate can separate the river sand mixed in the seeds for separation.

[0015] Furthermore, the pneumatic mechanism includes a blower and an air supply channel, the blower is arranged on the other side of the drying mechanism, the air inlet of the air supply channel is connected to the blower, and the air outlet of the air supply channel is connected to the air inlet channel, which is used to provide the main airflow for the drying mechanism to achieve fluidization.

[0016] Furthermore, the recovery device includes a storage hopper, a recovery cabin, a front swing arm, a rear swing arm, a shaking plate, an eccentric wheel, a connecting arm, a receiving plate, a recovery hopper, a recovery auger, a recovery motor, an eccentric motor, an eccentric shaft, a conveyor belt group and an air separation fan. The recovery cabin is arranged at the rear of the drying mechanism, the storage hopper is arranged at the top of the recovery cabin, one end of the front swing arm is rotatably arranged in the recovery cabin, one end of the rear swing arm is rotatably arranged in the recovery cabin, one end of the shaking plate is rotatably connected to the other end of the front swing arm, the other end of the shaking plate is rotatably connected to the other end of the rear swing arm, the eccentric shaft is rotatably arranged in the recovery cabin, and the eccentric motor is arranged on the side wall of the recovery cabin. The eccentric rotating shaft is transmission connected with the eccentric motor, the eccentric rotating wheel is arranged on the eccentric rotating shaft, one end of the connecting arm is rotationally connected with the eccentric rotating wheel, the other end of the connecting arm is rotationally connected with the bottom of the shaking plate, the receiving plate is arranged in the recovery cabin, the receiving plate is arranged below the receiving plate, the recovery hopper is arranged in the recovery cabin, the recovery hopper is arranged on one side of the receiving plate, the recovery auger is rotatably arranged in the recovery cabin, the recovery auger is also located at the bottom of the recovery hopper, the recovery motor is arranged on the side wall of the recovery cabin, the air separation fan is arranged on the side wall of the recovery cabin, and the recovery device mainly uses the air separation method to screen out the seeds that are not completely dried and re-dry them.

[0017] As a further preferred embodiment of the present invention, a conveyor belt group is connected to the bottom of the recovery chamber, and a discharge end of the conveyor belt group is connected to a recovery interface, and the conveyor belt group is used to transport the separated non-completely dried seeds back to the conveying mechanism.

[0018] The beneficial effects of the present invention using the above structure are as follows: The beneficial effects of a seed drying device provided by this scheme are as follows:

[0019] (1) A drying mechanism is provided, and clean river sand is added into the drying chamber by using an intermediate heat conduction method. The river sand is heated and ventilated to form a fluidized layer. With the help of the flow characteristics of the fluidized layer, the seeds are floated on the river sand. The seeds are dried by using the heat radiation transfer of the river sand and the flowing airflow. Compared with direct hot air drying, the heat conduction efficiency is higher, the heat loss is small, the temperature is stable and the heat preservation time is long, which solves the technical problem of low drying efficiency in the existing drying method;

[0020] (2) Setting up a separation mechanism to use the vibration of the drying base to separate the river sand mixed in the seeds, thus reducing the waste of river sand;

[0021] (3) A recovery device is set up to wash and screen the seeds that are not completely dried, and transport them to the conveying mechanism through a conveyor belt group for re-loading and drying, thus avoiding the technical problem of insufficient seeds;

[0022] (4) River sand is easy to obtain, non-toxic and harmless, and can be returned to nature after use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of a seed drying device proposed by the present invention;

[0024] Figure 2 A top view of a seed drying device proposed by the present invention;

[0025] Figure 3 is a cross-sectional view of the conveying mechanism;

[0026] Figure 4 It is a structural schematic diagram of the drying mechanism;

[0027] Figure 5 This is a partial structural exploded view of the dry base;

[0028] Figure 6 It is a partial structural cross-sectional view of the drying mechanism;

[0029] Figure 7 for Figure 6 A magnified schematic diagram of structure A;

[0030] Figure 8 It is a structural schematic diagram of the gas transmission interface;

[0031] Fig. 9 It is a schematic diagram of the transmission relationship of the discharging wheel;

[0032] Fig.10 It is a structural schematic diagram of the separation mechanism;

[0033] Fig.11 is a cross-sectional view of the separation mechanism;

[0034] Fig.12 It is a structural diagram of the pneumatic mechanism;

[0035] Fig.13 It is a partial structural schematic diagram of the recovery device;

[0036] Fig.14 is a cross-sectional view of the recovery device;

[0037] Fig.15 This is the transmission relationship diagram of the shaking plate;

[0038] Fig.16 This is the position relationship diagram of the conveyor belt group.

[0039] Among them, 1. drying mechanism, 2. conveying mechanism, 3. separation mechanism, 4. pneumatic mechanism, 5. recovery device, 101. drying chamber, 102. heating chamber, 103. partition plate, 104. drying base, 105. bottom platform, 106. air shock absorber, 107. vibration base, 108. vibration motor, 109. air transmission interface, 110. air transmission hole, 111. anti-sand film, 112. ceramic heating plate, 113. air inlet channel, 114. discharging wheel, 115. exhaust channel, 116. discharging channel, 117. push plate, 118. discharging unit, 119. universal transmission rod, 120. main rod, 121. auxiliary rod, 122. buffer spring, 123. universal Joint, 201, conveying channel, 202, conveying auger, 203, conveying motor, 204, feed hopper, 205, recovery interface, 301, separation cabin, 302, screening plate, 303, docking interface, 304, recovery port, 305, discharge port, 401, blower, 402, air transmission channel, 501, storage hopper, 502, recovery cabin, 503, front swing arm, 504, rear swing arm, 505, shaking plate, 506, eccentric wheel, 507, connecting arm, 508, receiving plate, 509, recovery hopper, 510, recovery auger, 511, recovery motor, 512, eccentric motor, 513, eccentric shaft, 514, conveyor belt group, 515, air separation fan.

[0040] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0043] like Figure 1 and Figure 2 As shown, the technical solution adopted by the present invention is as follows: the present invention provides a seed drying device, including a drying mechanism 1, a conveying mechanism 2, a separation mechanism 3, a pneumatic mechanism 4 and a recovery device 5, the conveying mechanism 2 is arranged on one side of the drying mechanism 1, the separation mechanism 3 is arranged on the drying mechanism 1, the pneumatic mechanism 4 is arranged on the other side of the drying mechanism 1, and the recovery device 5 is arranged behind the separation mechanism 3.

[0044] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.12As shown, the drying mechanism 1 includes a drying chamber 101, a heating chamber 102 and a drying base 104. The drying base 104 is installed on the ground, the heating chamber 102 is arranged above the drying base 104, the drying chamber 101 is arranged above the heating chamber 102, and a partition plate 103 is arranged between the drying chamber 101 and the heating chamber 102; the drying base 104 includes a base 105, an air shock absorber 106, a vibration base 107 and a vibration motor 108, the base 105 is installed on the ground, the air shock absorber 106 is arranged on the base 105, a vibration base 107 is arranged on the air shock absorber 106, and a vibration motor 108 is arranged at the bottom of the vibration base 107; a gas supply interface 109 is arranged on the partition plate 103, a gas supply hole 110 is arranged on the gas supply interface 109, and a sand-proof film 111 is arranged on the lower surface of the gas supply interface 109; a ceramic heating plate 112 is arranged at the bottom of the partition plate 103; an air inlet channel 113 is arranged on the side wall of the heating chamber 102; a discharging wheel 114 is arranged to rotate in the drying chamber 101, and a pusher 114 is arranged to slide in the drying chamber 101 The top of the drying chamber 101 is provided with an exhaust passage 115, and the side wall of the drying chamber 101 is provided with a discharge passage 116; a discharge unit 118 is provided on one side of the drying chamber 101, and the discharge unit 118 is connected to the discharge wheel 114 through a universal transmission rod 119; the universal transmission rod 119 includes a main rod 120, a secondary rod 121, a buffer spring 122 and a universal joint 123, one end of the main rod 120 is connected to the output end of the discharge unit 118 through the universal joint 123, and the main rod 120 The other end of the main rod 12 is slidably connected to one end of the auxiliary rod 121, one end of the buffer spring 122 is fixedly connected to the main rod (12, the other end of the buffer spring 122 is fixedly connected to the auxiliary rod 121, and the other end of the auxiliary rod 121 is transmission-connected to the discharging wheel 114 through a universal joint 123; the pneumatic mechanism 4 includes a blower 401 and an air delivery channel 402, the blower 401 is arranged on the other side of the drying mechanism 1, the air inlet of the air delivery channel 402 is connected to the blower 401, and the air outlet of the air delivery channel 402 is connected to the air inlet channel 113.

[0045] like Figure 1 , Figure 2 and Figure 3 As shown, the conveying mechanism 2 includes a conveying channel 201, a conveying auger 202, a conveying motor 203, a feed hopper 204 and a recovery interface 205. The feed hopper 204 is arranged on one side of the drying mechanism 1, the bottom of the conveying channel 201 is connected with the feed hopper 204, the conveying auger 202 is rotatably arranged in the conveying channel 201, the conveying motor 203 is arranged at the top of the conveying channel 201, the conveying motor 203 is transmission-connected with the conveying auger 202, the top of the conveying channel 201 is connected with the drying cabin 101, and the recovery interface 205 is arranged in the middle of the conveying channel 201.

[0046] like Figure 1 , Figure 2 , Fig.10 and Fig.11 As shown, the separation mechanism 3 includes a separation cabin 301, a screening plate 302, a docking port 303, a recovery port 304 and a discharge port 305. The separation cabin 301 is arranged on the side wall of the drying cabin 101, the screening plate 302 is arranged in the separation cabin 301, the docking port 303 is arranged on the separation cabin 301, the docking port 303 is connected with the discharge channel 116, the discharge port 305 is arranged on one side of the separation cabin 301, and the recovery port 304 is arranged on the other side of the separation cabin 301.

[0047] like Figure 1 , Figure 2 , Fig.13 , Fig.14 , Fig.15 and Fig.16 As shown, the recovery device 5 includes a storage hopper 501, a recovery cabin 502, a front swing arm 503, a rear swing arm 504, a shaking plate 505, an eccentric wheel 506, a connecting arm 507, a receiving plate 508, a recovery hopper 509, a recovery auger 510, a recovery motor 511, an eccentric motor 512, an eccentric shaft 513 and an air separation fan 515. The recovery cabin 502 is arranged at the rear of the drying mechanism 1, the storage hopper 501 is arranged at the top of the recovery cabin 502, one end of the front swing arm 503 is rotatably arranged in the recovery cabin 502, one end of the rear swing arm 504 is rotatably arranged in the recovery cabin 502, one end of the shaking plate 505 is rotatably connected to the other end of the front swing arm 503, the other end of the shaking plate 505 is rotatably connected to the other end of the rear swing arm 504, the eccentric shaft 513 is rotatably arranged in the recovery cabin 502, and the eccentric motor 512 is arranged in the recovery cabin 502. On the side wall, the eccentric rotating shaft 513 is transmission connected with the eccentric motor 512, the eccentric rotating wheel 506 is arranged on the eccentric rotating shaft 513, one end of the connecting arm 507 is rotationally connected with the eccentric rotating wheel 506, and the other end of the connecting arm 507 is rotationally connected with the bottom of the shaking plate 505, the collecting plate 508 is arranged in the recovery cabin 502, the collecting plate 508 is arranged below the collecting plate 508, the recovery hopper 509 is arranged in the recovery cabin 502, the recovery hopper 509 is arranged on one side of the collecting plate 508, the recovery auger 510 is rotationally arranged in the recovery cabin 502, and the recovery auger 510 is also located at the bottom of the recovery hopper 509, the recovery motor 511 is arranged on the side wall of the recovery cabin 502, and the air separation fan 515 is arranged on the side wall of the recovery cabin 502; a conveyor belt group 514 is connected to the bottom of the recovery cabin 502, and the unloading end of the conveyor belt group 514 is connected to the recovery interface 205.

[0048] When in use, the seeds are poured into the feed hopper 204, and clean river sand is added into the drying chamber 101, the height of the river sand is equal to the lowest level of the discharge wheel 114; the conveying mechanism 2 starts to transport, and the conveying motor 203 is started. The conveying motor 203 drives the conveying auger 202 to rotate, and the seeds in the feed hopper 204 are transported to the drying chamber 101 through the conveying auger 202; the drying mechanism 1 starts to dry, and the blower 401 is started. The blower 401 sucks air and blows it into the air delivery channel 402. The airflow enters the heating chamber 102 through the air delivery channel 402 and the air inlet channel 113, and then the airflow passes through the air barrier The sand film 111 and the air delivery hole 110 enter the drying chamber 101. At this time, when the gas passes through the river sand layer, the particles will be lifted and suspended in the air flow to form a fluidized state, showing a flow property similar to that of a liquid. At the same time, the ceramic heating plate 112 is started. The heat generated by the ceramic heating plate 112 is transferred to the river sand through the partition plate 103. According to the type of seeds, the overall temperature of the river sand is heated to a suitable temperature between 40 and 60 degrees Celsius. After the seeds enter the drying chamber 101 from the conveying channel 201, the vibration motor 108 is started. The vibration motor 108 drives the vibration base 107 to vibrate, thereby driving the drying chamber 1 The material in the drying chamber 101 vibrates. During the drying process, the seeds in the upper layer are mixed with the river sand in the upper layer. Since the density of the river sand is always greater than that of the seeds, the seeds float above the river sand, and the seeds are also affected by the airflow to form a fluidized state. The heat of the river sand is transferred through contact with the seeds. At the same time, the internal airflow can transfer heat and take away the evaporated water vapor. During the drying process, the drying chamber 101 vibrates all the time. Due to inertia, the vibration frequency of the push plate 117 is not synchronized with the drying chamber 101. The vibration of the push plate 117 is used to push the drying chamber 101 to move toward the discharging wheel 114, and the discharging unit 118 is started to discharge the materials. The unit 118 drives the auxiliary rod 121 to rotate through the universal joint 123, and the rotation of the auxiliary rod 121 drives the main rod 120 to rotate. The rotation of the main rod 120 drives the discharging wheel 114 to rotate through the universal joint 123. The discharging wheel 114 rotates to throw the dried seeds from the discharging channel 116. Then the seeds enter the separation cabin 301 through the docking port 303. The separation cabin 301 and the drying cabin 101 keep synchronous vibration. Through vibration, the river sand mixed in the seeds falls to the bottom of the separation cabin 301 through the screening plate 302 and is discharged through the separation port. The seeds enter the storage hopper 501 from the discharging port 305.The seed recovery operation starts. After the seeds enter the storage hopper 501, the eccentric motor 512 is started. The eccentric motor 512 drives the eccentric shaft 513 to rotate. The rotation of the eccentric shaft 513 drives the eccentric wheel 506 to rotate. The rotation of the eccentric wheel 506 drives the shaking plate 505 to shake through the connecting arm 507. The shaking of the shaking plate 505 shakes the seeds evenly onto the receiving plate 508. At the same time, the air selection fan 515 is started. The air selection fan 515 sucks air to form an air flow and blows it to the receiving plate 508. The completely dried seeds will be blown into the recovery hopper 509 due to the reduced density. The recovery motor 511 is started. The recovery motor 511 drives the recovery auger 510 to rotate, and the completely dried seeds are transported out of the recovery device 5. They can be collected separately afterwards. The seeds that are not completely dried will fall to the receiving plate 508 and slide onto the conveyor belt group 514. The seeds are transported to the recovery interface 205 through the conveyor belt group 514 to be dried again. ;

[0049] The above is the specific working process of the present invention, and you can repeat this step next time you use it.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present invention.

[0052] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A seed drying device, characterized in that: The invention comprises a drying mechanism (1), a conveying mechanism (2), a separation mechanism (3), a pneumatic mechanism (4) and a recovery device (5), wherein the conveying mechanism (2) is arranged on one side of the drying mechanism (1), the separation mechanism (3) is arranged on the drying mechanism (1), the pneumatic mechanism (4) is arranged on the other side of the drying mechanism (1), and the recovery device (5) is arranged behind the separation mechanism (3); the drying mechanism (1) comprises a drying chamber (101), a heating chamber (102) and a drying base (104), wherein the drying base (104) is installed on the ground, the heating chamber (102) is arranged above the drying base (104), the drying chamber (101) is arranged above the heating chamber (102), and the recovery device (5) is arranged behind the separation mechanism (3). A partition plate (103) is provided between the drying chamber (101) and the heating chamber (102); a gas supply interface (109) is provided on the partition plate (103); a gas supply hole (110) is provided on the gas supply interface (109); a sand-proof membrane (111) is provided on the lower surface of the gas supply interface (109); a ceramic heating plate (112) is provided at the bottom of the partition plate (103); a discharging wheel (114) is rotatably provided in the drying chamber (101); a pushing plate (117) is slidably provided in the drying chamber (101); an exhaust passage (115) is provided on the top of the drying chamber (101); and a discharging passage (116) is provided on the side wall of the drying chamber (101); A discharging unit (118) is provided on one side of (101), and the discharging unit (118) is connected to the discharging rotating wheel (114) through a universal transmission rod (119); the universal transmission rod (119) comprises a main rod (120), a secondary rod (121), a buffer spring (122) and a universal joint (123); one end of the main rod (120) is connected to the output end of the discharging unit (118) through a universal joint (123); the other end of the main rod (120) is slidably connected to one end of the secondary rod (121); one end of the buffer spring (122) is fixedly connected to the main rod (120); the other end of the buffer spring (122) is fixedly connected to the secondary rod (121); The other end of the auxiliary rod (121) is transmission-connected to the discharge wheel (114) via a universal joint (123); the separation mechanism (3) comprises a separation cabin (301), a screening plate (302), a docking port (303), a recovery port (304) and a discharge port (305); the separation cabin (301) is arranged on the side wall of the drying cabin (101); the screening plate (302) is arranged in the separation cabin (301); the docking port (303) is arranged on the separation cabin (301); the docking port (303) is communicated with the discharge channel (116); the discharge port (305) is arranged on the other side of the separation cabin (301); and the recovery port (304) is arranged at the bottom of the separation cabin (301).

2. A seed drying device according to claim 1, characterized in that: The drying base (104) comprises a base (105), an air shock absorber (106), a vibration base (107) and a vibration motor (108); the base (105) is installed on the ground, the air shock absorber (106) is arranged on the base (105), the vibration base (107) is arranged on the air shock absorber (106), and the vibration motor (108) is arranged at the bottom of the vibration base (107).

3. A seed drying device according to claim 2, characterized in that: An air intake passage (113) is provided on the side wall of the heating chamber (102).

4. A seed drying device according to claim 3, characterized in that: The conveying mechanism (2) comprises a conveying channel (201), a conveying auger (202), a conveying motor (203), a feed hopper (204) and a recovery interface (205); the feed hopper (204) is arranged at one side of the drying mechanism (1); the bottom of the conveying channel (201) is connected to the feed hopper (204); the conveying auger (202) is rotatably arranged in the conveying channel (201); the conveying motor (203) is arranged at the top of the conveying channel (201); the conveying motor (203) is transmission-connected to the conveying auger (202); the top of the conveying channel (201) is connected to the drying chamber (101); and the recovery interface (205) is arranged in the middle of the conveying channel (201).

5. A seed drying device according to claim 4, characterized in that: The pneumatic mechanism (4) comprises a blower (401) and an air supply channel (402); the blower (401) is arranged on the other side of the drying mechanism (1); an air inlet of the air supply channel (402) is in communication with the blower (401); and an air outlet of the air supply channel (402) is in communication with an air inlet channel (113).

6. A seed drying device according to claim 5, characterized in that: The recovery device (5) comprises a storage hopper (501), a recovery cabin (502), a right swing arm (503), a left swing arm (504), a material shaking plate (505), an eccentric rotating wheel (506), a connecting arm (507), a material receiving plate (508), a recovery hopper (509), a recovery auger (510), a recovery motor (511), an eccentric motor (512), an eccentric rotating shaft (513) and a winnowing fan (515). The recovery cabin (502) is arranged at the rear of the drying mechanism (1). The storage hopper (501) is arranged on the top of the recovery cabin (502), one end of the right swing arm (503) is rotatably arranged in the recovery cabin (502), one end of the left swing arm (504) is rotatably arranged in the recovery cabin (502), one end of the shaking plate (505) is rotatably connected to the other end of the right swing arm (503), the other end of the shaking plate (505) is rotatably connected to the other end of the left swing arm (504), and the eccentric shaft (513) is rotatably arranged in the recovery cabin (502). The eccentric motor (512) is arranged on the side wall of the recovery cabin (502), the eccentric rotating shaft (513) is in transmission connection with the eccentric motor (512), the eccentric rotating wheel (506) is arranged on the eccentric rotating shaft (513), one end of the connecting arm (507) is rotatably connected to the eccentric rotating wheel (506), the other end of the connecting arm (507) is rotatably connected to the bottom of the shaking plate (505), the receiving plate (508) is arranged in the recovery cabin (502), and the receiving plate ( 508) is arranged below the receiving plate (508), the recovery hopper (509) is arranged in the recovery chamber (502), the recovery hopper (509) is arranged on one side of the receiving plate (508), the recovery auger (510) is rotatably arranged in the recovery chamber (502), the recovery auger (510) is simultaneously at the bottom of the recovery hopper (509), the recovery motor (511) is arranged on the side wall of the recovery chamber (502), and the air separation fan (515) is arranged on the side wall of the recovery chamber (502).

7. A seed drying device according to claim 6, characterized in that: A conveyor belt group (514) is connected to the bottom of the recovery chamber (502), and a discharge end of the conveyor belt group (514) is connected to the recovery interface (205).

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