Rice low-temperature drying equipment and drying method

Abstract

The present application relates to the technical field of low-temperature drying of rice, in particular to a low-temperature drying equipment and method for rice, which comprises a conveying support, a conveying mesh belt rotatably arranged inside the conveying support, and a drying chamber arranged on the conveying support; a leveling plate is slidingly arranged on the conveying support, and one end of the leveling plate is provided with a distribution rod; a collecting plate is connected to one end of the leveling plate, and a collecting cavity is formed in the collecting plate; the leveling plate can be slidably adjusted to level the rice, so that the drying chamber can dry the entire rice for the same time; the leveling plate is arranged in a rotatable state, the height of the high end of the leveling plate can be changed by rotating the leveling plate, so that the high end of the leveling plate can store more rice; the collecting plate is arranged to filter the dust mixed in the rice; the push plate can push the rice in the collecting plate out through the push plate, and the rice can be thrown out when being pushed out, so that the positions of the upper and lower layers of rice are changed, and more effective drying is achieved.

Description

Technical Field

[0001] This invention relates to the field of low-temperature rice drying technology, specifically to a low-temperature rice drying equipment and drying method. Background Technology

[0002] Low-temperature drying equipment is a device that uses the principle of freeze dehydration to remove moisture from the air, reduce air humidity, and regulate temperature and humidity. It performs rapid and effective drying at low temperatures and has the advantages of low power consumption, low heat consumption, fast moisture removal, and low damage.

[0003] In the prior art, Chinese utility model publication CN218296639U discloses a low-temperature drying device for crops, including a fixed frame, a conveying mechanism, and a drying chamber. The fixed frame has an installation groove on its inner side near the top. A drying mechanism is located inside the drying chamber. A diffusion box is located below the conveying mechanism. An air inlet mechanism is located inside the diffusion box. A heating mechanism is located inside the conveying mechanism. The advantages of this utility model are: temperature sensors allow for temperature monitoring at multiple locations inside the drying chamber, facilitating temperature control. When the temperature is too high, the diffusion box and air inlet mechanism work together to quickly expel hot air from the drying chamber. When the temperature is too low, the drying mechanism, air inlet mechanism, and heating mechanism work together to rapidly raise the temperature inside the drying chamber, thereby enhancing temperature control and facilitating crop drying.

[0004] In the aforementioned technology, when drying rice at low temperature, the rice must first be transported to the interior of the drying chamber via a conveyor belt. When placing the rice, it is impossible to guarantee the flatness of the rice spread on the conveyor belt. If the rice on the conveyor belt is not flat, the drying time of the rice cannot be uniform, resulting in inconsistent drying levels or an inability to control the drying time, thus wasting drying time. Summary of the Invention

[0005] The purpose of this invention is to provide a low-temperature rice drying equipment and drying method to solve the problem of uneven rice surface on the conveyor belt.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A low-temperature rice drying device and drying method, comprising:

[0008] A conveyor support frame, wherein a conveyor belt is rotatably mounted inside the conveyor support frame, and a drying chamber is provided directly above the conveyor belt on the conveyor support frame;

[0009] The flat plate is slidably disposed above the conveyor support corresponding to the conveyor belt, and a distribution bar is provided on one end face of the flat plate at the position corresponding to the conveyor belt;

[0010] A collecting plate is connected to one end of the flat plate, and a collecting cavity is provided inside the collecting plate. A second support rod is rotatably arranged inside the collecting plate, and a lever is fixedly arranged on the surface of the second support rod.

[0011] Preferably, the flat plate has a first through hole inside, the first through hole penetrates the flat plate, and a first support rod is inserted into the first through hole. The first support rod is connected to the flat plate through the first through hole, and a guide groove is provided on the side wall of the conveying bracket at the position corresponding to the first support rod. The guide groove penetrates the side wall of the conveying bracket.

[0012] Preferably, one end of the first support rod passes through the guide groove and is connected to a first handle. The first handle has a countersunk hole on one side wall corresponding to the first support rod. One end of the first support rod is inserted into the countersunk hole. Multiple sets of third return springs distributed in a circumferential manner are provided between the first support rod and the countersunk hole. The first handle is elastically connected to the first support rod through multiple sets of the third return springs.

[0013] Two sets of symmetrically distributed fixing rods are fixedly installed on one end face of the first handle near the outer side wall of the conveying bracket. Matching fixing holes are opened at the corresponding positions of the two sets of fixing rods on the outer side wall of the conveying bracket. Multiple sets of fixing holes are opened, and the multiple sets of fixing holes are evenly spaced along the height direction of the guide groove.

[0014] Preferably, the outer surface of the first support rod is provided with a first storage groove, and a plug is inserted into the inside of the first storage groove. The size of the plug matches the internal size of the first storage groove, and a first return spring is provided between the plug and the first storage groove. The plug is elastically inserted into the inside of the first storage groove through the first return spring.

[0015] Preferably, a third storage groove is formed on the outer surface of the first handle, a connecting block is inserted into the interior of the third storage groove, a fourth return spring is provided between the connecting block and the third storage groove, the connecting block is elastically inserted into the interior of the third storage groove through the fourth return spring, and a first pull rope is provided between the third storage groove and the first storage groove, the two ends of the first pull rope are respectively connected to the insert block and the connecting block, and the elastic force of the fourth return spring is less than the elastic force of the first return spring;

[0016] The inner wall of the first return spring is provided with a matching fixing groove at the position of the insertion block. There are multiple sets of fixing grooves, which are distributed in a circumferential manner. The insertion block is elastically inserted into the interior of one set of fixing grooves by the first return spring.

[0017] Preferably, a plurality of second storage slots are provided on the lower end face of one end of the flat plate. A distribution rod is inserted into the interior of each second storage slot, and a second return spring is provided between each distribution rod and the matching second storage slot. The distribution rod is elastically inserted into the interior of the second storage slot through the second return spring, and each distribution rod has a beveled surface on the side facing the rotation direction of the conveyor belt.

[0018] Preferably, the first support rod has a second through hole inside, a plug rod is inserted into the second through hole, and a first guide hole is opened at the position of each of the distribution rods corresponding to the second through hole. A second pull rope is provided inside each of the first guide holes, and the two ends of each second pull rope are respectively connected to the plug rod and the distribution rod corresponding to each second pull rope.

[0019] Preferably, a plurality of sets of spaced connecting rods are fixedly arranged on the lower end face of the plate near the distribution rod. The end of each connecting rod away from the plate is connected to the collecting plate. The collecting plate is fixedly connected to the plate through the plurality of connecting rods. The collecting plate has an arc-shaped structure. A plurality of evenly spaced ball bearings are arranged at the bottom of the collecting plate. The inner wall of the collecting plate is provided with filter holes, which are connected to the collecting cavity.

[0020] Preferably, the dial plate is provided in four sets, and the four sets of dial plates are distributed in a circumferential manner on the outer surface of the second support rod. The dial plate has an "L" shaped structure and matches the internal size of the collecting plate. Each dial plate has a push plate hinged inside, and each push plate is magnetically connected to the dial plate.

[0021] The second support rod is internally fitted with a push block, the outer surface of which has a groove, and a magnetic ring is installed inside the groove. The magnetic ring has a "C" shaped structure, and the open end of the magnetic ring faces the direction of movement of the conveyor belt.

[0022] The inner wall of the second support rod is provided with a fifth storage groove at the position corresponding to the magnetic ring. There are four sets of the fifth storage grooves, and the four sets of fifth storage grooves correspond to four sets of push plates. A magnetic block is slidably arranged inside each of the fifth storage grooves.

[0023] The lever is provided with a fourth storage slot at the position corresponding to the push plate. A push block is provided inside the fourth storage slot, and a fifth return spring is provided between the fourth storage slot and the push block. The push block is elastically disposed inside the fourth storage slot by the fifth return spring, and the elasticity of the fifth return spring is greater than the attraction between the lever and the push plate.

[0024] A second guide hole is provided between the fifth storage slot and the fourth storage slot. A third pull rope is provided inside the second guide hole. The two ends of the third pull rope are respectively connected to the magnetic block and the push block, and the attraction between the magnetic block and the magnetic ring is greater than the elastic force of the fifth reset spring.

[0025] A drying method, comprising:

[0026] Adjustment of rice conveying height: Before conveying rice, the distance between the lower end of the flat plate and the surface of the conveyor belt needs to be adjusted. When adjusting, pull the first handle outward. As the first handle moves outward, the fixing rod inserted into the fixing hole gradually moves out. When the fixing rod is no longer inserted into the fixing hole, the flat plate can be moved up and down along the guide groove by the cooperation of the first handle and the first support rod, thereby adjusting the distance between the lower end of the flat plate and the surface of the conveyor belt.

[0027] If a large amount of rice is conveyed to the surface of the conveyor belt, a large amount of rice will accumulate at the higher end of the flat plate. To prevent the rice from overflowing the higher end of the flat plate, the tilt angle of the flat plate needs to be adjusted. When adjusting, pull the connecting block upwards. The connecting block moves the insert block through the first pull rope, so that the insert block is no longer inserted into the fixed groove and retracts into the first collection groove. At this time, the flat plate can rotate around the first support rod, thereby adjusting the height of the higher end of the flat plate and making the flat plate block more rice.

[0028] Rapid drying of rice: After being laid flat on the plate, the rice is moved to the position of the distribution bar by the conveyor belt. The oblique cut surface separates the rice grains, resulting in multiple grooves between them. The grooves can accelerate the entry of the hot air generated in the drying chamber into the rice grains at the bottom layer, thereby speeding up the drying of the rice.

[0029] Dust collection: The dried rice is conveyed to the collection plate by the conveyor belt. The rotating deflector pushes the dried rice into the inside of the collection plate, while the dust wrapped in the rice falls into the collection chamber. The filtered rice is pushed out by the deflector and continues to be conveyed by the conveyor belt.

[0030] During rotation, the push plate and the push plate are connected by magnetic attraction. Matching magnetic blocks approach the magnetic ring through the magnetic attraction structure. When one set of magnetic blocks rotates to the open end of the magnetic ring, the magnetic blocks will no longer approach the magnetic ring through the magnetic attraction structure. At this time, the matching push block, under the action of the fifth return spring, pops out the hinged push plate, and the rice stored on the push plate is thrown out, allowing the rice to be re-laid on the conveyor belt. The rice at the bottom is thrown to the upper surface of the conveyor belt, facilitating low-temperature drying in the drying chamber.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] This invention utilizes a sliding, adjustable flat plate to level the rice grains placed on the conveyor belt, ensuring that the drying time for all rice grains in the drying chamber is uniform. The flat plate is rotatable, allowing the height of its upper and lower ends to be adjusted, enabling the higher end to store more rice grains. A collection plate filters out dust mixed in with the rice grains, separating the dust. A hinged pusher plate, along with a lever, pushes rice grains out of the collection plate, throwing them out and altering the position of the rice grains between layers, thus making the drying chamber more efficient in drying the rice. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0034] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0035] Figure 3 This is a schematic cross-sectional view of the three-dimensional structure of the present invention;

[0036] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B;

[0037] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point C;

[0038] Figure 6 This is a schematic cross-sectional view of the first support rod and the first handle structure in this invention;

[0039] Figure 7 This is a schematic diagram showing the connection between the flat plate and the collecting plate structure of the present invention;

[0040] Figure 8 This is a cross-sectional view of the connection between the collecting plate and the deflector plate structure of the present invention;

[0041] Figure 9 for Figure 8Enlarged schematic diagram of the structure at point D.

[0042] In the diagram: 1. Conveying bracket; 2. Drying chamber; 3. Conveying mesh belt; 4. Flat plate; 5. Guide groove; 6. Fixing hole; 7. First handle; 8. Connecting block; 9. Insert rod; 10. First through hole; 11. First support rod; 12. Second through hole; 15. Fixing groove; 16. Inserting block; 17. First storage groove; 18. First return spring; 19. First pull rope; 20. First guide hole; 21. Second pull rope; 22. Second storage groove; 23. Second return spring; 24. Dividing rod; 25. Beveled surface; 26. Fixing rod; 27. Countersunk hole; 28. Third return spring; 29. ​​Third storage groove; 30. Fourth return spring; 31. Connecting rod; 32. Collection plate; 33. Second support rod; 34. Paddle plate; 35. Collection cavity; 36. Ball bearing; 37. Push plate; 38. Fourth storage groove; 39. Fifth return spring; 40. Push block; 41. Second guide hole; 42. Third pull rope; 43. Fifth storage groove; 44. Magnetic block; 45. Magnetic ring; 46. Groove. Detailed Implementation

[0043] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0044] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0045] Furthermore, in the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two connected entities do not establish a connection relationship through an intermediate structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0047] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Example

[0048] Please see Figures 1 to 9 The present invention provides a technical solution: a low-temperature rice drying device, comprising:

[0049] A conveyor support 1 is provided, and a conveyor belt 3 is rotatably mounted inside the conveyor support 1. A drying chamber 2 is provided directly above the conveyor belt 3 on the conveyor support 1.

[0050] The flat plate 4 is slidably disposed above the conveyor support 1 corresponding to the conveyor belt 3, and a spreading rod 24 is provided on one end face of the flat plate 4 at the position corresponding to the conveyor belt 3;

[0051] A collecting plate 32 is connected to one end of the flat plate 4, and a collecting cavity 35 is provided inside the collecting plate 32. A second support rod 33 is rotatably arranged inside the collecting plate 32, and a lever 34 is fixedly arranged on the surface of the second support rod 33.

[0052] The rice to be dried is transported to the bottom of the drying chamber 2 by the conveyor belt 3 for drying. When the conveyor belt 3 is transporting the rice, the leveling plate 4 set on the conveyor support 1 can level the rice so that the rice is at the same height from the drying chamber 2, so that the drying chamber 2 can dry the rice in the same way. At the same time, the rice is pushed into the inside of the collection plate 32 by the cooperation of the second support rod 33 and the deflector plate 34, and the dust mixed in the rice will fall into the inside of the collection chamber 35. Example

[0053] like Figure 2 and Figure 6 As shown, the low-temperature rice drying equipment and drying method disclosed in Embodiment 2 of the present invention have a structure that is basically the same as that in Embodiment 1, except that:

[0054] The flat plate 4 has a first through hole 10 inside, which penetrates the flat plate 4. A first support rod 11 is inserted into the first through hole 10. The first support rod 11 is connected to the flat plate 4 through the first through hole 10. A guide groove 5 is provided on the side wall of the conveying bracket 1 at the position corresponding to the first support rod 11. The guide groove 5 penetrates the side wall of the conveying bracket 1.

[0055] One end of the first support rod 11 passes through the guide groove 5 and is connected to the first handle 7. The first handle 7 has a countersunk hole 27 on one side wall corresponding to the first support rod 11. One end of the first support rod 11 is inserted into the countersunk hole 27. Multiple sets of third return springs 28 distributed in a circumferential manner are provided between the first support rod 11 and the countersunk hole 27. The first handle 7 is elastically connected to the first support rod 11 through multiple sets of the third return springs 28.

[0056] Two sets of symmetrically distributed fixing rods 26 are fixedly installed on one end face of the first handle 7 near the outer side wall of the conveying bracket 1. Matching fixing holes 6 are opened at the corresponding positions of the two sets of fixing rods 26 on the outer side wall of the conveying bracket 1. Multiple sets of fixing holes 6 are opened, and the multiple sets of fixing holes 6 are evenly spaced along the height direction of the guide groove 5.

[0057] The outer surface of the first support rod 11 is provided with a first storage groove 17. A plug 16 is inserted into the inside of the first storage groove 17. The size of the plug 16 matches the internal size of the first storage groove 17. A first return spring 18 is provided between the plug 16 and the first storage groove 17. The plug 16 is elastically inserted into the inside of the first storage groove 17 through the first return spring 18.

[0058] The outer surface of the first handle 7 is provided with a third storage groove 29. A connecting block 8 is inserted into the interior of the third storage groove 29. A fourth return spring 30 is provided between the connecting block 8 and the third storage groove 29. The connecting block 8 is elastically inserted into the interior of the third storage groove 29 through the fourth return spring 30. A first pull rope 19 is provided between the third storage groove 29 and the first storage groove 17. The two ends of the first pull rope 19 are respectively connected to the insert block 16 and the connecting block 8. The elastic force of the fourth return spring 30 is less than the elastic force of the first return spring 18.

[0059] The inner wall of the first return spring 18 is provided with a matching fixing groove 15 at the position corresponding to the insertion block 16. Multiple sets of fixing grooves 15 are provided and distributed in a circumferential manner. The insertion block 16 is elastically inserted into the interior of one set of fixing grooves 15 by the first return spring 18.

[0060] When adjusting the distance between the lower end of the flat plate 4 and the surface of the conveyor belt 3, pull the first handle 7, and the fixing rod 26 inserted into the fixing hole 6 will gradually move out. When the fixing rod 26 is no longer inserted into the fixing hole 6, the flat plate 4 can be moved up and down along the guide groove 5 by the cooperation of the first handle 7 and the first support rod 11, so as to adjust the distance between the lower end of the flat plate 4 and the surface of the conveyor belt 3.

[0061] If a large amount of rice is conveyed to the surface of the conveyor belt 3, a large amount of rice will accumulate at the higher end of the flat plate 4. To prevent the rice from overflowing the higher end of the flat plate 4, the tilt angle of the flat plate 4 needs to be adjusted. During adjustment, the connecting block 8 is pulled upwards. The connecting block 8 moves the insert block 16 through the first pull rope 19, so that the insert block 16 is no longer inserted into the fixed groove 15 and retracts into the first storage groove 17. At this time, the flat plate 4 can rotate around the first support rod 11, thereby adjusting the height of the higher end of the flat plate 4 and making the flat plate 4 block more rice. Example

[0062] like Figure 4 and Figure 7 As shown, the rice low-temperature drying equipment and drying method disclosed in Embodiment 3 of the present invention have a structure that is basically the same as that in Embodiment 2, except that:

[0063] The lower end face of one end of the flat plate 4 is provided with multiple sets of second storage slots 22 distributed at intervals. Each second storage slot 22 is provided with a distribution rod 24 inserted inside. A second return spring 23 is provided between each distribution rod 24 and the matching second storage slot 22. The distribution rod 24 is elastically inserted into the second storage slot 22 through the second return spring 23. Each distribution rod 24 has a beveled surface 25 on the side facing the rotation direction of the conveyor belt 3.

[0064] The first support rod 11 has a second through hole 12 inside, and a plug rod 9 is inserted into the second through hole 12. The second through hole 12 has a first guide hole 20 at the position of each of the distribution rods 24. A second pull rope 21 is provided inside each of the first guide holes 20, and the two ends of each second pull rope 21 are connected to the plug rod 9 and the distribution rod 24 corresponding to each second pull rope 21, respectively.

[0065] After being spread out on the flat plate 4, the rice grains are moved to the position of the spreading bar 24 by the conveyor belt 3. The oblique cut surface 25 separates the rice grains, resulting in multiple grooves between them. The grooves can accelerate the flow of hot air generated in the drying chamber 2 into the rice grains at the bottom layer, thereby speeding up the drying of the rice grains. Example

[0066] like Figure 8 and Figure 9 As shown, the rice low-temperature drying equipment and drying method disclosed in Embodiment 4 of the present invention have a structure that is basically the same as that in Embodiment 3, except that:

[0067] Multiple sets of spaced connecting rods 31 are fixedly arranged on the lower end face of the plate 4 near the distribution rod 24. The end of each connecting rod 31 away from the plate 4 is connected to the collecting plate 32. The collecting plate 32 is fixedly connected to the plate 4 through the multiple sets of connecting rods 31. The collecting plate 32 has an arc-shaped structure. Multiple sets of evenly spaced ball bearings 36 are arranged at the bottom of the collecting plate 32. The inner wall of the collecting plate 32 has filter holes, which are connected to the collecting cavity 35.

[0068] The four sets of the lever 34 are arranged in a circular manner on the outer surface of the second support rod 33. The lever 34 has an "L" shaped structure and matches the internal size of the collecting plate 32. Each lever 34 has a push plate 37 hinged inside, and each push plate 37 is magnetically connected to the lever 34.

[0069] The second support rod 33 is internally connected to a push block 40. The outer surface of the push block 40 is provided with a groove 46. The groove 46 is internally provided with a magnetic ring 45. The magnetic ring 45 has a "C" shaped structure and the open end of the magnetic ring 45 faces the direction of movement of the conveyor belt 3.

[0070] The inner wall of the second support rod 33 is provided with a fifth storage groove 43 at the position corresponding to the magnetic ring 45. There are four sets of the fifth storage groove 43, and the four sets of fifth storage grooves 43 correspond to four sets of push plates 37 respectively. A magnetic block 44 is slidably arranged inside each of the fifth storage grooves 43.

[0071] The lever 34 is provided with a fourth storage groove 38 at the position corresponding to the push plate 37. A push block 40 is provided inside the fourth storage groove 38, and a fifth return spring 39 is provided between the fourth storage groove 38 and the push block 40. The push block 40 is elastically disposed inside the fourth storage groove 38 by the fifth return spring 39, and the elasticity of the fifth return spring 39 is greater than the attraction between the lever 34 and the push plate 37.

[0072] A second guide hole 41 is provided between the fifth storage slot 43 and the fourth storage slot 38. A third pull rope 42 is provided inside the second guide hole 41. The two ends of the third pull rope 42 are respectively connected to the magnetic block 44 and the push block 40, and the attraction between the magnetic block 44 and the magnetic ring 45 is greater than the elastic force of the fifth reset spring 39.

[0073] The dried rice is conveyed to the collection plate 32 via the conveyor belt 3. The rotating deflector 34 pushes the dried rice into the inside of the collection plate 32, while the dust wrapped in the rice falls into the collection chamber 35. The filtered rice is pushed out by the deflector 34 and continues to be conveyed by the conveyor belt 3.

[0074] During the rotation of the lever plate 34, the push plate 37 and the lever plate 34 are connected together due to magnetic attraction. The matching magnetic block 44 approaches the magnetic ring 45 through the magnetic attraction structure. When one of the magnetic blocks 44 rotates to the open end of the magnetic ring 45, the magnetic block 44 will no longer approach the magnetic ring 45 through the magnetic attraction structure. At this time, the matching push block 40 will pop out the hinged push plate 37 through the force of the fifth reset spring 39. The rice stored on the push plate 37 will be thrown out, so that the rice will be re-laid on the conveyor belt 3. The bottom rice will be thrown to the upper surface of the conveyor belt 3, which will facilitate the low-temperature drying of the drying chamber 2.

[0075] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in the details for the sake of brevity.

[0076] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A low-temperature rice drying device, characterized in that, include: A conveying support (1) is provided with a conveying mesh belt (3) inside the conveying support (1), and a drying chamber (2) is provided directly above the conveying mesh belt (3) of the conveying support (1). The flat plate (4) is slidably disposed above the conveyor support (1) corresponding to the conveyor belt (3), and a distribution rod (24) is provided at one end face of the flat plate (4) corresponding to the position of the conveyor belt (3). A collection plate (32) is connected to one end of the flat plate (4), and a collection cavity (35) is provided inside the collection plate (32). A second support rod (33) is rotatably provided inside the collection plate (32), and a lever plate (34) is fixedly provided on the surface of the second support rod (33). The flat plate (4) has multiple sets of spaced second storage slots (22) on its lower end face. Each second storage slot (22) has a distribution rod (24) inserted inside it. A second return spring (23) is provided between each distribution rod (24) and the matching second storage slot (22). The distribution rod (24) is elastically inserted into the second storage slot (22) through the second return spring (23). Each distribution rod (24) has a beveled surface (25) on the side facing the rotation direction of the conveyor belt (3). The flat plate (4) is fixedly provided with a number of sets of spaced connecting rods (31) on the lower end face of one end near the distribution rod (24). The end of each connecting rod (31) away from the flat plate (4) is connected to the collecting plate (32). The collecting plate (32) is fixedly connected to the flat plate (4) through the number of sets of connecting rods (31). The collecting plate (32) has an arc-shaped structure. The bottom of the collecting plate (32) is provided with a number of evenly spaced balls (36). The inner wall of the collecting plate (32) is provided with filter holes. The filter holes are connected to the collecting cavity (35). The push plate (34) is provided in four sets. The four sets of push plates (34) are distributed in a circumferential state on the outer surface of the second support rod (33). The push plate (34) has an "L" shaped structure and matches the internal size of the collecting plate (32). Each push plate (34) is hinged with a push plate (37) inside, and each push plate (37) is magnetically connected to the push plate (34). The second support rod (33) is internally connected to a push block (40), and the outer surface of the push block (40) is provided with a groove (46). The groove (46) is internally provided with a magnetic ring (45), which has a "C" shaped structure and the open end of the magnetic ring (45) faces the direction of movement of the conveyor belt (3). The inner wall of the second support rod (33) is provided with a fifth storage groove (43) at the position corresponding to the magnetic ring (45). There are four sets of the fifth storage groove (43), and the four sets of fifth storage grooves (43) correspond to four sets of push plates (37). A magnetic block (44) is slidably arranged inside each of the fifth storage grooves (43). The lever (34) is provided with a fourth storage groove (38) at the position corresponding to the push plate (37). A push block (40) is provided inside the fourth storage groove (38), and a fifth return spring (39) is provided between the fourth storage groove (38) and the push block (40). The push block (40) is elastically disposed inside the fourth storage groove (38) by the fifth return spring (39), and the elasticity of the fifth return spring (39) is greater than the attraction between the lever (34) and the push plate (37). A second guide hole (41) is provided between the fifth storage slot (43) and the fourth storage slot (38). A third pull rope (42) is provided inside the second guide hole (41). The two ends of the third pull rope (42) are connected to the magnetic block (44) and the push block (40) respectively. The attraction between the magnetic block (44) and the magnetic ring (45) is greater than the elastic force of the fifth reset spring (39).

2. The low-temperature rice drying equipment according to claim 1, characterized in that, The flat plate (4) has a first through hole (10) inside, which penetrates the flat plate (4). A first support rod (11) is inserted into the first through hole (10). The first support rod (11) is connected to the flat plate (4) through the first through hole (10). A guide groove (5) is provided on the side wall of the conveying bracket (1) at the position corresponding to the first support rod (11). The guide groove (5) penetrates the side wall of the conveying bracket (1).

3. The low-temperature rice drying equipment according to claim 2, characterized in that, One end of the first support rod (11) passes through the guide groove (5) and is connected to the first handle (7). The first handle (7) has a countersunk hole (27) on one side wall corresponding to the first support rod (11). One end of the first support rod (11) is inserted into the countersunk hole (27). Multiple sets of third return springs (28) distributed in a circumferential manner are provided between the first support rod (11) and the countersunk hole (27). The first handle (7) is elastically connected to the first support rod (11) through multiple sets of the third return springs (28). Two sets of symmetrically distributed fixing rods (26) are fixedly installed on one end face of the first handle (7) near the outer side wall of the conveying bracket (1). Matching fixing holes (6) are opened at the corresponding positions of the two sets of fixing rods (26) on the outer side wall of the conveying bracket (1). Multiple sets of fixing holes (6) are opened, and the multiple sets of fixing holes (6) are evenly distributed along the height direction of the guide groove (5).

4. The low-temperature rice drying equipment according to claim 3, characterized in that, The outer surface of the first support rod (11) is provided with a first storage groove (17). A plug (16) is inserted into the first storage groove (17). The size of the plug (16) matches the internal size of the first storage groove (17). A first return spring (18) is provided between the plug (16) and the first storage groove (17). The plug (16) is elastically inserted into the inside of the first storage groove (17) through the first return spring (18).

5. The low-temperature rice drying equipment according to claim 4, characterized in that, The outer surface of the first handle (7) is provided with a third storage groove (29). A connecting block (8) is inserted into the interior of the third storage groove (29). A fourth return spring (30) is provided between the connecting block (8) and the third storage groove (29). The connecting block (8) is elastically inserted into the interior of the third storage groove (29) through the fourth return spring (30). A first pull rope (19) is provided between the third storage groove (29) and the first storage groove (17). The two ends of the first pull rope (19) are respectively connected to the insert block (16) and the connecting block (8). The elastic force of the fourth return spring (30) is less than the elastic force of the first return spring (18). The inner wall of the first reset spring (18) is provided with a matching fixing groove (15) at the position of the insert (16). There are multiple sets of fixing grooves (15), which are distributed in a circumferential manner. The insert (16) is elastically inserted into the interior of one set of fixing grooves (15) by the first reset spring (18).

6. The low-temperature rice drying equipment according to claim 5, characterized in that, The first support rod (11) has a second through hole (12) inside, and a plug rod (9) is inserted into the second through hole (12). The second through hole (12) has a first guide hole (20) at the position of each of the distribution rods (24). A second pull rope (21) is provided inside each of the first guide holes (20), and the two ends of each second pull rope (21) are connected to the plug rod (9) and the distribution rod (24) corresponding to each second pull rope (21).

7. A drying method, characterized in that, include: The low-temperature rice drying equipment as described in claim 6, wherein the method comprises: Adjustment of rice conveying height: Before conveying rice, it is necessary to adjust the distance between the lower end of the flat plate (4) and the surface of the conveyor belt (3). When adjusting, pull the first handle (7) outward. When the first handle (7) moves outward, the fixing rod (26) inserted into the fixing hole (6) gradually moves out. When the fixing rod (26) is no longer inserted into the fixing hole (6), the flat plate (4) can be moved up and down along the guide groove (5) by the cooperation of the first handle (7) and the first support rod (11). The distance between the lower end of the flat plate (4) and the surface of the conveyor belt (3) can be adjusted. If a lot of rice is transported to the surface of the conveyor belt (3), a lot of rice will accumulate at the higher end of the flat plate (4). In order to prevent the rice from going over the higher end of the flat plate (4), the tilt angle of the flat plate (4) needs to be adjusted. When adjusting, pull the connecting block (8) upward. The connecting block (8) drives the insert block (16) to move through the first pull rope (19), so that the insert block (16) is no longer inserted into the fixed groove (15) and retracts into the first storage groove (17). At this time, the flat plate (4) can rotate with the first support rod (11) as the center, thereby adjusting the height of the higher end of the flat plate (4) so ​​that the flat plate (4) can block more rice. Rapid drying of rice: After being spread out on the flat plate (4), the rice is moved to the position of the spreading rod (24) by the conveyor belt (3). Through the separation of the oblique surface (25), multiple grooves are cut between the rice grains. The grooves can accelerate the entry of the hot air generated in the drying chamber (2) into the bottom layer of rice grains, thereby accelerating the drying of the rice grains. Dust collection: The dried rice is conveyed to the collection plate (32) via the conveyor belt (3). The rotating paddle (34) pushes the dried rice into the inside of the collection plate (32), and the dust wrapped in the rice falls into the collection chamber (35). The filtered rice is pushed out by the paddle (34) and continues to be conveyed by the conveyor belt (3). During the rotation of the lever plate (34), the push plate (37) and the lever plate (34) are connected together due to magnetic attraction. The matching magnetic block (44) approaches the magnetic ring (45) through the magnetic attraction structure. When one of the magnetic blocks (44) rotates to the open end of the magnetic ring (45), the magnetic block (44) will no longer approach the magnetic ring (45) through the magnetic attraction structure. At this time, the matching push block (40) will pop out the hinged push plate (37) through the force of the fifth reset spring (39). The rice stored on the push plate (37) is thrown out, so that the rice is re-laid on the conveyor belt (3). The bottom rice is thrown to the upper surface of the conveyor belt (3) to facilitate low-temperature drying in the drying chamber (2).

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