A drying device for seed pretreatment

Abstract

The utility model discloses a drying device for seed pretreatment, including bottom plate, be equipped with vibration portion on the bottom plate, be equipped with top tray on the output of vibration portion, be equipped with spiral channel in the top tray, be equipped with top cap on the spiral channel, top cap with top tray clamping, the top plate is passed through and is equipped with the feed slot, the inside of top tray is equipped with protruding portion, still be equipped with heating device on the bottom plate, heating device is connected with pipeline, the pipeline is passed through protruding portion, the spiral channel is evenly distributed with a plurality of air holes, be equipped with a plurality of louvre on the top cap, be connected with reflux channel on the spiral channel, be equipped with valve between reflux channel with spiral channel. The utility model solves the seed drying effect of prior art is not good, and it is difficult to have the problem of sustainable mass circulation type drying operation.

Description

Technical Field

[0001] This utility model relates to the field of seed processing technology, and in particular to a drying device for seed pretreatment. Background Technology

[0002] Before storage, seeds require preliminary processing, including initial cleaning, drying, selection, chemical treatment, and finally packaging and storage. Drying is one of the most crucial steps in this process. Seeds typically begin to mold when their moisture content is 12-14%, start generating heat at 16%, and begin germination at 35-60%. Storage requires controlling the moisture content to a level that does not affect seed viability or cause mold growth. However, in existing drying equipment, washed seeds often clump together due to residual moisture on their surface, affecting drying efficiency. To address this issue, Chinese Utility Model Patent Publication No. CN205747750U discloses a novel seed cleaning and drying device. This device features symmetrically installed vibrating motors on two sides of the drying chamber to prevent seeds from clumping together, ensuring even drying, and allowing for layer-by-layer replacement of seeds on a screen, facilitating uniform drying.

[0003] However, when applying the existing technology, it was found that the seeds passed through the screen into the collection tank before they were fully dried, resulting in incomplete drying. In addition, in order to ensure the drying effect, the box-type structure has a limited number of seeds that can be dried at one time. If it is necessary to increase the number of seeds dried at one time, the equipment size can only be increased, which will easily increase the space occupied. Furthermore, it is difficult to achieve large-scale cyclic drying of seeds. Utility Model Content

[0004] The purpose of this invention is to solve the problems of poor seed drying effect and difficulty in achieving sustainable large-scale cyclic drying operations in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A drying device for seed pretreatment includes a base plate, a vibrating part on the base plate, a top plate on the output end of the vibrating part, a spiral channel inside the top plate, a top cover on the spiral channel, the top cover engaging with the top plate, a feed chute penetrating the top plate, a protrusion inside the top plate, a heating device on the base plate, a pipe connected to the heating device, the pipe penetrating the protrusion, a plurality of ventilation holes evenly distributed on the spiral channel, a plurality of air vents on the top cover, a return channel connected to the spiral channel, and a valve between the return channel and the spiral channel.

[0006] Preferably, the vibration part includes a pulse electromagnet located on the base plate, a rotating disk is sleeved on the pulse electromagnet, the rotating disk is connected to the top plate, a plurality of spring plates are provided between the rotating disk and the base plate, and the pulse electromagnet is electrically connected to an external power source.

[0007] Preferably, the heating device includes a base located on the bottom plate, an electric heating tube is provided inside the base, a plurality of air outlets are provided above the electric heating tube, a fan is provided on the air outlet, the air outlet is connected to the pipe, and both the electric heating tube and the fan are electrically connected to an external power source.

[0008] Preferably, the protrusion is arc-shaped.

[0009] Preferably, the protrusion is provided with an air chamber, the air chamber has an exhaust port and an air inlet port, the output section of the exhaust port is located inside the top plate, the air inlet port penetrates the bottom of the top plate, the air inlet port is connected to an air connector, and the two are threaded together, the rotating plate has several slots, the air connector is engaged with the slots, the air connector is connected to the pipe, and the exhaust port is provided with a flow guide.

[0010] Preferably, the valve includes a rotating shaft hinged to the spiral channel, a baffle on the rotating shaft, a spiral spring between the rotating shaft and the spiral channel, a first electromagnet between the spiral channel and the baffle, and a second electromagnet between the return channel and the baffle. Both the first electromagnet and the second electromagnet are electrically connected to an external power source.

[0011] The beneficial effects proposed by this utility model are as follows: During use, both the vibrating unit and the heating device are electrically connected to an external power source. When the vibrating unit and heating device are powered on, the top plate begins to vibrate under the action of the vibrating unit. Simultaneously, the spiral channel and the return channel vibrate along with the top plate. The heating device then outputs hot air, which is injected into the top plate through the pipe. The seeds to be dried are then discharged into the top plate through the feed chute. At this point, the seeds are moist and, due to the surface tension of water, will clump together. As the vibrating unit continuously outputs vibration, the seeds are separated by vibration. Due to the compression and accumulation of the seeds during this process, they are gradually injected into the spiral channel, which then rises upwards. When the seeds reach the output end of the spiral channel, the valve closes the output end of the spiral channel, while the input end of the return channel opens. The seeds enter the return channel and then flow back to the bottom of the top plate, forming a reflux cycle. In the above-described process, during seed circulation, the protrusions channel hot air generated by the heating device into the top plate via the pipes. The hot air flows upwards within the top plate, its direction aligned with the seed's upward movement, thus drying the seeds within the spiral channel. Furthermore, the spiral channel is equipped with ventilation holes, allowing the hot air to pass through and further enhancing the drying effect. After drying, the valve closes the input end of the return channel, opening the output end of the spiral channel, allowing the seeds to be discharged through the spiral channel to an external collection device. Through this method, the seeds, during drying within the top plate, utilize a circulation system, enabling them to circulate and, in conjunction with the hot air, achieve dynamic contact between the seeds and the hot air, increasing the contact area and thereby improving drying efficiency.

[0012] Furthermore, the top cover is also provided with several ventilation holes, which facilitates the discharge of water vapor from the top plate during the hot air circulation process, thereby further improving the drying effect.

[0013] It should be noted that, in the above process, after the device is started, it can continuously feed material into the top plate through the feeding trough without having to shut down the device to feed material again. This allows the device to continuously feed material during operation. Combined with the discharge control of the valve, this improves the efficiency of the device in handling large-scale seed drying operations.

[0014] Through the above methods, this device can solve the problem of seeds clumping together due to moisture by using a vibrating feeding circulation system within a limited size, thereby increasing the contact time and area with hot air and thus improving the drying effect. Furthermore, through the action of the valve and the feeding trough, the material in the top plate can be discharged and fed without stopping the machine, thus solving the problem of handling continuous drying operations for large quantities of seeds within a limited equipment size. Attached Figure Description

[0015] Figure 1 This utility model proposes a three-dimensional drying device for seed pretreatment. Figure 1 ; Figure 2 This utility model proposes a three-dimensional drying device for seed pretreatment. Figure 2 ; Figure 3 This utility model proposes a three-dimensional drying device for seed pretreatment. Figure 2 A magnified view of a portion of the image; Figure 4 This is a perspective view of the vibrating section of a drying device for seed pretreatment proposed in this utility model; Figure 5 This is a half-sectional view of the heating device of a drying apparatus for seed pretreatment proposed in this utility model; Figure 6 This is a partially enlarged view (B) of the heating device in a half-section of a drying apparatus for seed pretreatment proposed in this utility model; Figure 7 This is a half-sectional view of the valve of a drying device for seed pretreatment proposed in this utility model.

[0016] In the diagram: 1. Base plate; 2. Top plate; 3. Spiral channel; 4. Top cover; 5. Feed chute; 6. Protrusion; 7. Pipe; 8. Ventilation hole; 9. Air vent; 10. Return channel; 11. Pulse electromagnet; 12. Rotating disk; 13. Spring plate; 14. Base; 15. Electric heating tube; 16. Fan; 17. Air chamber; 18. Exhaust port; 19. Air inlet; 20. Air connector; 21. Slot; 22. Flow guide; 23. Rotating shaft; 24. Baffle; 25. Spiral spring; 26. Air outlet; 27. First electromagnet; 28. Second electromagnet. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0018] Reference Figures 1 to 7A drying device for seed pretreatment includes a base plate 1, a vibrating part on the base plate 1, a top plate 2 on the output end of the vibrating part, a spiral channel 3 inside the top plate 2, a top cover 4 on the spiral channel 3, the top cover 4 being snapped into the top plate 2, a feed trough 5 penetrating the top plate, a protrusion 6 inside the top plate 2, a heating device on the base plate 1, a pipe 7 connected to the heating device, the pipe 7 penetrating the protrusion 6, a plurality of ventilation holes 8 evenly distributed on the spiral channel 3, a plurality of air vents 9 on the top cover 4, a return channel 10 connected to the spiral channel 3, and a valve between the return channel 10 and the spiral channel 3. Specifically, during use, both the vibrating section and the heating device are electrically connected to an external power source. When the vibrating section and the heating device are powered on, the top plate 2 begins to vibrate under the action of the vibrating section. Simultaneously, the spiral channel 3 and the return channel 10 vibrate together with the top plate 2. The heating device then outputs hot air, which is injected into the top plate 2 through the pipe 7. Subsequently, the seeds to be dried are discharged into the top plate 2 through the feed trough 5. At this time, the seeds are in a moist state. Due to the surface tension of water, the seeds will clump together. As the vibrating section continues to output vibration, the seeds will be separated by vibration. Due to the compression and accumulation of the seeds during this process, they will gradually be injected into the spiral channel 3, and the seeds will climb upward with the spiral channel 3. When the seeds climb to the output end of the spiral channel 3, the valve closes the output end of the spiral channel 3, and the input end of the return channel 10 opens. The seeds will enter the return channel 10 and then flow back to the bottom of the top plate 2, forming a return cycle. In the above-described process, during seed circulation, the protrusion 6, through the pipe 7, introduces hot air generated by the heating device into the top plate 2. The hot air flows upwards within the top plate 2, with the airflow direction matching the seed's upward movement, thus drying the seeds within the spiral channel 3. Furthermore, each spiral channel 3 is equipped with ventilation holes 8, allowing the hot air to pass through and improving the drying effect on the seeds within the spiral channel 3. After drying is complete, the valve closes the input end of the return channel 10, and the output end of the spiral channel 3 opens, allowing the seeds to be output through the spiral channel 3 to an external collection device. Through this method, the seeds have a circulation system during drying within the top plate 2, enabling them to circulate and, in conjunction with the hot air, achieve dynamic contact between the seeds and the hot air, increasing the contact area and thus improving the drying efficiency.

[0019] Furthermore, the top cover 4 is also provided with a number of ventilation holes 9, which facilitates the discharge of water vapor in the top plate 2 during the hot air circulation process, thereby further improving the drying effect.

[0020] It should be noted that, in the above process, after the device is started, it can continuously feed material into the top plate 2 through the feeding trough 5 without having to shut down the device to feed material again. This allows the device to continuously feed material during operation. Combined with the discharge control of the valve, this improves the efficiency of the device in handling large-scale seed drying operations.

[0021] In this way, the device can solve the problem of seeds sticking together due to moisture by using a vibrating feeding circulation system within a limited size, thereby increasing the contact time and area with hot air and thus improving the drying effect. Furthermore, through the action of the valve and the feeding trough 5, the material in the top plate 2 can be discharged and fed without stopping the machine, thus solving the problem of continuous drying of large quantities of seeds within a limited equipment size.

[0022] Specifically, the vibration unit includes a pulse electromagnet 11 located on the base plate 1. A rotating disk 12 is mounted on the pulse electromagnet 11 and connected to the top plate 2. Several spring plates 13 are arranged between the rotating disk 12 and the base plate 1. The pulse electromagnet 11 is electrically connected to an external power source. During operation, the pulse electromagnet 11 is energized and starts. Under the action of current, the pulse electromagnet 11 continuously generates on-off current, causing the rotating disk 12 to vibrate vertically. The spring plates 13 are inclinedly arranged between the rotating disk 12 and the base plate. Therefore, the spring plates 13 drive the rotating disk 12 to oscillate around its vertical axis, thereby realizing the spiral upward transport of seeds by the spiral channel 3 in the top plate 2. Under the action of vibration, the seeds will be in continuous vibration, which helps to shake off the moisture on the seed surface and also reduces the adhesion of seeds due to moisture, which is beneficial to improving the drying effect.

[0023] Specifically, the heating device includes a base 14 located on the bottom plate 1. An electric heating tube 15 is installed inside the base 14, and several air outlets 26 are located above the electric heating tube 15. A fan 16 is installed on each air outlet 26, and the air outlets 26 are connected to the pipe 7. Both the electric heating tube 15 and the fan 16 are electrically connected to an external power source. After the electric heating tube 15 is powered on, it generates heat within the base 14 under the influence of the current. The fan 16, when powered on, extracts the heat from the base 14 and injects it into the top plate 2 through the pipe 7, thereby drying the seeds in the top plate 2. During this process, since the top plate 2 is under continuous vibration, the top plate 2 will be displaced relative to the base 14. In order to reduce the risk of pipe wall tearing and damage caused by displacement during use, and to prevent the pipe 7 from loosening during connection, the pipe 7 is preferably a corrugated pipe. The corrugated pipe has a length allowance that can be extended or shortened adaptively, so as to overcome the problem that the pipe 7 can maintain reliable stability during the vibration of the top plate 2 and improve its service life.

[0024] Specifically, the protrusion 6 is arc-shaped. The arc shape of the protrusion 6 means that its central area is higher than the bottom surface of the top plate 2 and higher than the input end of the spiral channel 3. This design facilitates the smooth entry of seeds into the spiral channel 3. Furthermore, since the pipe 7 also passes through the protrusion 6, it prevents seeds from blocking the output end of the pipe 7, thus ensuring normal hot air circulation.

[0025] Specifically, the protrusion 6 contains an air chamber 17, with an exhaust port 18 and an air inlet 19 penetrating through it. The output section of the exhaust port 18 is located inside the top plate 2, and the air inlet 19 penetrates the bottom of the top plate 2. An air connector 20 is connected to the air inlet 19, and the two are threaded together. Several slots 21 are penetrating through the rotating disk 12, and the air connector 20 engages with the slots 21. The air connector 20 is connected to the pipe 7, and a flow guide shroud 22 is provided on the exhaust port 18. During the flow of hot air through the pipe 7, the hot air enters the air chamber 17 through the air connector 20 and the air inlet 19. The air chamber 17 helps to accumulate hot air, and the heat is conducted to the bottom of the top plate 2 through the chamber wall, which is beneficial for drying the seeds at the bottom of the top plate 2. At the same time, it can also evaporate the water stains remaining at the bottom of the top plate 2, thereby improving the drying effect. The hot air accumulated inside the air chamber 17 is discharged through the exhaust port 18 and enters the top plate 2. Furthermore, a flow guide 22 is provided above the exhaust port 18, which can reduce the risk of the exhaust port 18 being blocked during the downward flow of seeds.

[0026] Specifically, the valve includes a rotating shaft 23, which is hinged to the spiral channel 3. A baffle 24 is mounted on the rotating shaft 23. A spiral spring 25 is positioned between the rotating shaft 23 and the spiral channel 3. A first electromagnet 27 is positioned between the spiral channel 3 and the baffle 24. A second electromagnet 28 is positioned between the return channel 10 and the baffle 24. Both the first electromagnet 27 and the second electromagnet 28 are electrically connected to an external power source. When the output end of the spiral channel 3 is closed, the first electromagnet 27 is energized and generates a magnetic attraction force, attracting the baffle 24. At this time, the return channel 10 opens, and the seeds in the spiral channel 3 enter the return channel 10 and flow back to the top plate 2. During this process, the spiral spring 25 rotates under the action of the rotating shaft 23, storing its elastic force. When the output end of the spiral channel 3 is open, the first electromagnet 27 is de-energized and loses its magnetic attraction. The spiral spring 25 releases its stored elastic force, and under the action of the rotating shaft 23, the baffle 24 rotates towards the second electromagnet 28. Subsequently, the second electromagnet 28 is energized and generates magnetic attraction, attracting the baffle 24 and closing the output end of the return channel 10. This allows the seeds to be discharged from the spiral channel 3 into the collection device outside the top plate 2. The above method achieves the switching between the discharge and circulation modes of the spiral channel 3.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drying apparatus for seed pretreatment, comprising a base plate, characterized in that: The base plate is provided with a vibrating part, and the output end of the vibrating part is provided with a top plate. The top plate is provided with a spiral channel, and the spiral channel is provided with a top cover. The top cover is snapped onto the top plate, and a feed groove runs through the top cover. The top plate is provided with a protrusion inside. The base plate is also provided with a heating device, and a pipe is connected to the heating device. The pipe runs through the protrusion. Several ventilation holes are evenly distributed on the spiral channel. Several air vents are provided on the top cover. A return channel is connected to the spiral channel, and a valve is provided between the return channel and the spiral channel.

2. The drying apparatus for seed pretreatment according to claim 1, characterized in that: The vibrating part includes a pulse electromagnet located on the base plate. A rotating disk is fitted on the pulse electromagnet and connected to the top plate. Several spring plates are provided between the rotating disk and the base plate. The pulse electromagnet is electrically connected to an external power source.

3. The drying apparatus for seed pretreatment according to claim 2, characterized in that: The heating device includes a base located on the bottom plate. An electric heating tube is installed inside the base. Several air outlets are provided above the electric heating tube. A fan is installed on each air outlet. The air outlets are connected to the pipe. Both the electric heating tube and the fan are electrically connected to an external power source.

4. The drying apparatus for seed pretreatment according to claim 3, characterized in that: The protrusion is arc-shaped.

5. The drying apparatus for seed pretreatment according to claim 4, characterized in that: The protrusion contains an air chamber with an exhaust port and an air inlet. The exhaust port's output section is located inside the top plate. The air inlet penetrates the bottom of the top plate and is connected to an air connector, which is threaded together. The rotating disk has several slots, and the air connector engages with these slots. The air connector is connected to the pipe. The exhaust port is equipped with a flow guide.

6. The drying apparatus for seed pretreatment according to claim 5, characterized in that: The valve includes a rotating shaft hinged to the spiral channel, a baffle on the rotating shaft, a spiral spring between the rotating shaft and the spiral channel, a first electromagnet between the spiral channel and the baffle, and a second electromagnet between the return channel and the baffle. Both the first and second electromagnets are electrically connected to an external power source.

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