Full-automatic grain dryer with impurity removing function

Abstract

The application discloses a full-automatic grain dryer with a function of removing impurities, which can place the grain in the mesh cylinder inside the drying cylinder after preheating, and the mesh cylinder can rotate when the grain enters the mesh cylinder, the guide wheel on the mesh cylinder can rotate along the rotating groove, and the first baffle plate and the second baffle plate inside the mesh cylinder can be opened and closed, so that the grain can be graded and dropped during the opening and closing of the first baffle plate and the second baffle plate, and the impurities in the grain can fall on the inner wall of the drying cylinder along with the rotation of the mesh cylinder, and the first baffle plate and the second baffle plate can be opened along with the rotation of the mesh cylinder, so that the impurities are discharged, the impurities are removed during the drying process, and the collection and storage in the later stage are facilitated.

Description

Technical Field

[0001] This application relates to the field of dryer technology, and in particular to a fully automatic grain dryer with impurity removal function. Background Technology

[0002] As is well known, grain will mold when the temperature and humidity conditions in its environment meet the requirements for microbial growth and reproduction. In other words, moisture and temperature are two important factors for the reproduction of mold and other microorganisms in grain (i.e., grain mold). Generally, controlling the moisture content of grain below a safe level can prevent mold growth.

[0003] After the grain is collected, it is dried by spreading it out in the sun or by using some drying equipment. However, the sun drying method is inefficient and takes a long time. Moreover, impurities cannot be removed during the sun drying process. Although drying by drying equipment is more efficient, impurities in the grain still cannot be removed during the drying process. The dried grain still needs to be cleaned of impurities, and the storage process of the dried grain is quite complicated. Summary of the Invention

[0004] One of the objectives of this application is to provide a fully automatic grain dryer with a purification function.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a fully automatic grain dryer with impurity removal function, comprising a placement rack, a drying cylinder, a hot air pipe, and a hot air box. The drying cylinder is disposed between two placement racks. A mesh cylinder is rotatably disposed inside the drying cylinder. The mesh cylinder and the drying cylinder are arranged in parallel. The drying cylinder is inclinedly disposed on the placement rack. An impurity discharge port is provided on the side edge of the drying cylinder. A first partition and a second partition are slidably connected to the inner side of the impurity discharge port. The pressing blocks on the first and second partitions correspond to the top blocks on the mesh cylinder. A guide wheel is provided on one side of the top block. The guide wheel is rotatably connected to a rotating groove. A deflection groove is provided on one side of the rotating groove. A corresponding first blocking plate and a second blocking plate are connected to one side of the guide wheel. Both the first blocking plate and the second blocking plate are located inside the mesh cylinder.

[0006] Preferably, the discharge port is located on the vertical bottom side of the drying cylinder, and a discharge port is provided on one end of the mesh cylinder inside the drying cylinder, which is located on the lower side of the inclined position of the drying cylinder. A feed port is provided on the other end of the mesh cylinder inside the drying cylinder, which is located on the higher side of the inclined position of the drying cylinder.

[0007] Preferably, a servo motor is installed below the feed inlet of the mesh cylinder inside the drying cylinder. The servo motor is detachably connected to a placement frame on one side. The output end of the servo motor is connected to the outer wall of the feed inlet of the mesh cylinder via a belt, and the belt of the output end of the servo motor is sleeved at the feed inlet position.

[0008] Preferably, the first partition and the second partition are located inside the drying cylinder. Both the first partition and the second partition are provided with extrusion blocks. The extrusion blocks on the first partition and the second partition have the same structure. The extrusion blocks at adjacent ends on the first partition and the second partition are all sloped.

[0009] Preferably, the extrusion blocks on the first and second partitions overlap each other, and the overall shape of the overlapping extrusion blocks is V-shaped. Guide rods are provided on the extrusion blocks on the first and second partitions, and the guide rods are arranged in a straight line with the extrusion blocks. A fixed seat is provided in the direction of movement of the guide rods.

[0010] Preferably, the fixed seat has a guide opening, the guide rod is slidably connected in the guide opening of the fixed seat, the fixed seat is set on the inner wall of the drying cylinder, a return spring is sleeved on the guide rod, the return spring is located on the guide rod between the fixed seat and the extrusion block, and one end of the return spring is connected to the fixed seat.

[0011] Preferably, the mesh cylinder is provided with a plurality of fixing rings, and the fixing rings are provided with a rotating opening. The rotating opening is circular, and a ball seat is rotatably connected inside the rotating opening. The diameter of the ball seat is the same as that of the rotating opening.

[0012] Preferably, an extension frame and a connecting frame are respectively provided on both sides of the ball seat, and the connecting frame is respectively connected to the corresponding first blocking plate and second blocking plate, and the first blocking plate and the second blocking plate are both semi-circular.

[0013] Preferably, the extension frame is provided with a guide wheel, and a top block is provided on the extension frame on one side of the guide wheel. The top block corresponds to the extrusion seat, and the guide wheel is located in the rotating groove of the first circular frame and the second circular frame.

[0014] Preferably, both the first and second circular frames are provided with a fixing frame, which is set on the inner wall of the drying cylinder. The eccentric grooves on the first and second circular frames are U-shaped, and the two ends of the eccentric grooves are connected to the rotating groove.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] This solution uses an inclined drying cylinder on a rack. When the drying cylinder is tilted, the internal mesh cylinder also tilts. The grain to be dried is placed inside the mesh cylinder. As the grain passes through the mesh cylinder, its tilt causes it to automatically move towards the discharge port. The drying cylinder is connected to a hot air duct, which blows hot air into the drying chamber to dry the grain. As the grain flows through the mesh cylinder, impurities are discharged. The mesh cylinder has several holes; smaller holes prevent grain from being completely discharged, but dust and small impurities are expelled. The mesh cylinder can rotate, causing the grain to tumble. Turning the grain makes it fluffier, thus improving the drying effect. Turning also shakes out impurities, ensuring complete removal of impurities. The screen cylinder is equipped with guide wheels, and the guide wheels have top blocks. When the top blocks rotate, they can move towards the impurity discharge port inside the drying cylinder. The top blocks can then move towards the first and second partitions, eventually reaching the squeezing blocks of the first and second partitions. The top blocks can then open the squeezing blocks, thus separating the first and second partitions. The fallen impurities can then be discharged through the impurity discharge port, thereby achieving impurity removal from the grain during the drying process. This results in cleaner grain that does not require secondary impurity removal, making it easier to collect and store.

[0017] This solution involves installing a fixed ring on the net cylinder. The fixed ring is made of a hard material, allowing a ball seat to be installed on it. A rotating opening is provided on the fixed ring, allowing the ball seat to rotate within this opening. This multi-directional rotation facilitates the rotation of the first and second blocking plates. The ball seat is equipped with an extension frame and a connecting frame. The extension frame is located outside the fixed ring, and the connecting frame is located inside, connecting to the corresponding blocking plate. A guide wheel is installed on the extension frame, with a first circular frame and a second circular frame on either side. A rotating groove is provided between the first and second circular frames, allowing the guide wheel to rotate along this groove when the net cylinder rotates. The first and second circular frames have offset grooves that communicate with the rotating groove. The offset grooves and the rotating groove are at different horizontal positions, allowing the guide wheel to rotate to... When the chute is in the off-center position, the ball seat rotates and moves vertically, causing the first and second blocking plates to rotate and open, allowing the grain to flow. When the guide wheel rotates back into the chute, the first and second blocking plates return to their original positions. The mesh cylinder has several fixed rings, each corresponding to a chute and an off-center chute. The position of each off-center chute affects the opening time of the first and second blocking plates on the mesh cylinder, allowing them to open sequentially. This prevents the grain from passing through the mesh cylinder too quickly. Each time the grain falls, it is impacted by the first and second blocking plates, causing vibration and facilitating the removal of impurities. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0021] Figure 4 This is a schematic diagram of the connection of the fixing frame in this invention.

[0022] Figure 5 This is a schematic diagram of the connection of the second blocking plate in this invention.

[0023] Figure 6 This is a schematic diagram of the connection of the guide wheel in this invention.

[0024] Figure 7 This is a magnified schematic diagram of region A in this invention.

[0025] In the diagram: 1. Placement rack; 2. Drying cylinder; 3. Hot air duct; 4. Feed inlet; 5. Servo motor; 6. Hot air box; 7. Discharge port; 8. First partition; 9. Second partition; 10. Impurity discharge port; 11. First blocking plate; 12. Second blocking plate; 13. Fixing frame; 14. Fixing ring; 15. Mesh cylinder; 16. Extrusion block; 17. Guide rod; 18. Return spring; 19. Fixing seat; 20. Guide port; 21. Offset groove; 22. First circular frame; 23. Second circular frame; 24. Rotary groove; 25. Guide wheel; 26. Top block; 27. Ball seat; 28. Rotary port; 29. ​​Extension frame; 30. Connecting frame. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. They should not be construed as limiting the specific protection scope of this application.

[0028] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] Example 1:

[0030] like Figures 1 to 7 As shown, a fully automatic grain dryer with impurity removal function according to the present invention includes a placement rack 1, a drying cylinder 2, a hot air pipe 3, and a hot air box 6. The drying cylinder 2 is disposed between the two placement racks 1. A mesh cylinder 15 is rotatably disposed inside the drying cylinder 2. The mesh cylinder 15 and the drying cylinder 2 are arranged in parallel. The drying cylinder 2 is inclined on the placement rack 1. An impurity discharge port 10 is provided on the side edge of the drying cylinder 2. A first partition 8 and a second partition 9 are slidably connected to the inner side of the impurity discharge port 10. The pressing blocks 16 on the first partition 8 and the second partition 9 correspond to the top blocks 26 on the mesh cylinder 15. A guide wheel 25 is provided on one side of the top block 26. The guide wheel 25 is rotatably connected in a rotating groove 24. A deflection groove 21 is provided on one side of the rotating groove 24. A corresponding first blocking plate 11 and second blocking plate 11 are connected to one side of the guide wheel 25. Plate 12, the first blocking plate 11, and the second blocking plate 12 are all located inside the mesh cylinder 15. After the drying cylinder 2 is preheated, the grain can be placed inside the mesh cylinder 15 inside the drying cylinder 2. When the grain enters the mesh cylinder 15, the mesh cylinder 15 can rotate. When the mesh cylinder 15 rotates, the guide wheel 25 on the mesh cylinder 15 will rotate along the rotating groove 24. The first blocking plate 11 and the second blocking plate 12 inside the mesh cylinder 15 will open and close. During the opening and closing process of the first blocking plate 11 and the second blocking plate 12, the grain can be graded and fall. As the mesh cylinder 15 rotates, the impurities in the grain will fall onto the inner wall of the drying cylinder 2. As the mesh cylinder 15 rotates, the first partition 8 and the second partition 9 can open, thereby allowing the impurities to be discharged, thus realizing the removal of impurities during the drying process, which facilitates the subsequent collection and storage.

[0031] like Figure 2 As shown, the discharge port 10 is located on the vertical bottom side of the drying cylinder 2. The discharge port 7 is provided on one end of the mesh cylinder 15 inside the drying cylinder 2. The discharge port 7 is located on the lower side of the inclined position of the drying cylinder 2. The inlet port 4 is provided on the other end of the mesh cylinder 15 inside the drying cylinder 2. The inlet port 4 is located on the higher side of the inclined position of the drying cylinder 2. The grain can flow automatically due to the inclined setting of the drying cylinder 2 and the mesh cylinder 15, which facilitates the discharge of the grain.

[0032] As an optional solution, in one embodiment of the present invention, such as Figure 3As shown, a servo motor 5 is installed below the feed inlet 4 of the mesh cylinder 15 inside the drying cylinder 2. The servo motor 5 is detachably connected to the placement frame 1 on one side. The output end of the servo motor 5 is connected to the outer wall of the feed inlet 4 of the mesh cylinder 15 via a belt. The belt of the output end of the servo motor 5 is sleeved at the feed inlet 4. The servo motor 5 can drive the mesh cylinder 15, and the mesh cylinder 15 can rotate. When the mesh cylinder 15 rotates, the guide wheel 25 on the mesh cylinder 15 can rotate along the rotating groove 24.

[0033] In practice, an inclined drying cylinder 2 is installed on the placement rack 1. When the drying cylinder 2 is inclined, the mesh cylinder 15 inside the drying cylinder 2 can also be inclined. The grain to be dried can be placed inside the mesh cylinder 15. When the grain passes through the inside of the mesh cylinder 15, it will automatically move towards the discharge port 7 due to the inclination of the mesh cylinder 15. The drying cylinder 2 is connected to a hot air pipe 3. The hot air box 6 can blow hot air into the drying box through the hot air pipe 3, thereby drying the grain inside the drying cylinder 2. When the grain flows inside the mesh cylinder 15, impurities in the grain can be discharged through the mesh cylinder 15. The mesh cylinder 15 has several holes. If the holes are too small to allow the grain to discharge, the dust and small impurities in the grain will be discharged. The mesh cylinder 15 can rotate. When the mesh cylinder 15 rotates, the grain will be turned over. When the grain is turned over, it becomes fluffier, thus improving the drying effect. Turning the grain over also shakes out impurities, ensuring complete removal of impurities. The mesh cylinder 15 is equipped with guide wheels 25, and the guide wheels 25 are equipped with top blocks 26. When the top blocks 26 rotate, they can rotate towards the impurity discharge port 10 inside the drying cylinder 2. The top blocks 26 can then move towards the first partition 8 and the second partition 9. The top blocks 26 can rotate to the position of the squeezing block 16 of the first partition 8 and the second partition 9, thus opening the squeezing block 16 and separating the first partition 8 and the second partition 9. The fallen impurities can then be discharged through the impurity discharge port 10, thereby achieving impurity removal of the grain during the drying process. This makes the grain cleaner and eliminates the need for secondary impurity removal, making it easier to collect and store.

[0034] Example 2:

[0035] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, based on Embodiment 1, the present invention provides a technical solution: A first partition 8 and a second partition 9 are located inside the drying cylinder 2. Each of the first partition 8 and the second partition 9 is provided with an extrusion block 16. The extrusion blocks 16 on the first partition 8 and the second partition 9 have the same structure. The extrusion blocks 16 at adjacent ends on the first partition 8 and the second partition 9 are sloped. The extrusion blocks 16 can be connected to the top block 26, and the top block 26 can push the extrusion blocks 16, thereby separating the first partition 8 and the second partition 9. The extrusion blocks 16 on the first partition 8 and the second partition 9 overlap each other, and the overall shape of the overlapping extrusion blocks 16 is V-shaped. Guide rods 17 are provided on the extrusion blocks 16 on the first partition 8 and the second partition 9. The guide rods 17 connect with the extrusion blocks... The guide rod 17 is arranged in a straight line, and a fixed seat 19 is provided in the direction of movement of the guide rod 17. The guide rod 17 can slide along the fixed seat 19 to prevent the first partition 8 and the second partition 9 from shifting. The fixed seat 19 has a guide opening 20, and the guide rod 17 is slidably connected in the guide opening 20 of the fixed seat 19. The fixed seat 19 is set on the inner wall of the drying cylinder 2. A return spring 18 is sleeved on the guide rod 17. The return spring 18 is located on the guide rod 17 between the fixed seat 19 and the extrusion block 16. One end of the return spring 18 is connected to the fixed seat 19. The return spring 18 can push the first partition 8 and the second partition 9 to make the first partition 8 and the second partition 9 overlap again, thereby preventing the hot air from escaping when continuously opening.

[0036] As an optional solution, in this embodiment, such as Figure 5 , Figure 6 and Figure 7As shown, the mesh cylinder 15 is provided with several fixing rings 14, each with a rotating opening 28. The rotating opening 28 is circular, and a ball seat 27 is rotatably connected inside the rotating opening 28. The ball seat 27 has the same diameter as the rotating opening 28. The rotating opening 28 guides the guide wheel 25, allowing the guide wheel 25 to rotate along the rotating groove 24. An extension frame 29 and a connecting frame 30 are respectively provided on both sides of the ball seat 27. The connecting frame 30 connects to the corresponding first blocking plate 11 and second blocking plate 12. Both the first blocking plate 11 and the second blocking plate 12 are semi-circular. The ball seat 27 allows the extension frame 29 and the connecting frame 30 to swing. The extension frame 29 is equipped with... A guide wheel 25 is provided, and a top block 26 is provided on the extension frame 29 on one side of the guide wheel 25. The top block 26 corresponds to the extrusion seat. The guide wheel 25 is located in the rotating groove 24 of the first circular frame 22 and the second circular frame 23. The extrusion block 16 can be pushed by the top block 26. A fixing frame 13 is provided on the first circular frame 22 and the second circular frame 23. The fixing frame 13 is set on the inner wall of the drying cylinder 2. The eccentric groove 21 on the first circular frame 22 and the second circular frame 23 is U-shaped. The two ends of the eccentric groove 21 are connected to the rotating groove 24. The position of the guide wheel 25 can be changed by the eccentric groove 21, so that the guide wheel 25 drives the first blocking plate 11 and the second blocking plate 12 to open and close.

[0037] In implementation, a fixed ring 14 is installed on the net cylinder 15. The fixed ring 14 is made of hard material, and a ball seat 27 can be installed on the fixed ring 14. A rotating opening 28 is opened on the fixed ring 14, and the ball seat 27 can rotate within the rotating opening 28. The ball seat 27 can rotate in multiple directions, thereby facilitating the rotation of the first blocking plate 11 and the second blocking plate 12. The ball seat 27 is respectively provided with an extension frame 29 and a connecting frame 30. The extension frame 29 is located on the outside of the fixed ring 14, and the connecting frame 30 is located on... Inside the fixed ring 14, the connecting frame 30 can be connected to the corresponding blocking plate. A guide wheel 25 is provided on the extension frame 29. A first circular frame 22 and a second circular frame 23 are respectively provided on both sides of the guide wheel 25. A rotating groove 24 is provided between the first circular frame 22 and the second circular frame 23. When the mesh cylinder 15 rotates, the guide wheel 25 can rotate along the rotating groove 24. An offset groove 21 is provided on the first circular frame 22 and the second circular frame 23. The offset groove 21 communicates with the rotating groove 24. When the guide wheel 25 rotates to the position of the eccentric groove 21, the ball seat 27 will rotate and move along the vertical position. The ball seat 27 can drive the first blocking plate 11 and the second blocking plate 12 to rotate, and the first blocking plate 11 and the second blocking plate 12 will open, so that the grain can flow. When the guide wheel 25 rotates back into the rotating groove 24, the first blocking plate 11 and the second blocking plate 12 can be reset. The mesh cylinder 15 is provided with several fixed rings 14, each fixed ring 14 corresponding to a rotating groove 24 and an eccentric groove 21. The opening time of the first blocking plate 11 and the second blocking plate 12 on the mesh cylinder 15 will be different depending on the position of each eccentric groove 21. The first blocking plate 11 and the second blocking plate 12 can be opened in sequence, so that the grain can fall in sequence and will not pass through the mesh cylinder 15 quickly. When the grain falls at each stage, it will be impacted by the first blocking plate 11 and the second blocking plate 12 and vibrate, which facilitates the removal of impurities.

[0038] The working principle of this invention is as follows: An inclined drying cylinder 2 is installed on the placement rack 1. When the drying cylinder 2 is inclined, the mesh cylinder 15 inside the drying cylinder 2 can also be inclined. The grain to be dried can be placed inside the mesh cylinder 15. When the grain passes through the mesh cylinder 15, it will automatically move towards the discharge port 7 due to the inclination of the mesh cylinder 15. The drying cylinder 2 is connected to a hot air pipe 3, and the hot air box 6 can blow hot air into the drying box through the hot air pipe 3, thereby drying the grain inside the drying cylinder 2. When the grain flows inside the mesh cylinder 15, impurities in the grain can be discharged through the mesh cylinder 15. The mesh cylinder 15 has several holes. If the holes are too small to allow the grain to discharge completely, dust and small impurities in the grain will be discharged. The mesh cylinder 15 can rotate, and when the mesh cylinder 15 rotates, the grain will be turned over. When the grain is turned over, it becomes fluffier, thus improving the drying effect. Turning the grain over also shakes out impurities, ensuring complete removal of impurities. The mesh cylinder 15 is equipped with guide wheels 25, and the guide wheels 25 are equipped with top blocks 26. When the top blocks 26 rotate, they can rotate towards the impurity discharge port 10 inside the drying cylinder 2. The top blocks 26 can then move towards the first partition 8 and the second partition 9. The top blocks 26 can rotate to the position of the squeezing block 16 of the first partition 8 and the second partition 9, thus opening the squeezing block 16 and separating the first partition 8 and the second partition 9. The fallen impurities can then be discharged through the impurity discharge port 10, thereby achieving impurity removal of the grain during the drying process. This makes the grain cleaner and eliminates the need for secondary impurity removal, making it easier to collect and store.By setting a fixing ring 14 on the net cylinder 15, the fixing ring 14 being made of a hard material, a ball seat 27 can be installed on the fixing ring 14. A rotating opening 28 is provided on the fixing ring 14, allowing the ball seat 27 to rotate within the opening 28. The ball seat 27 can rotate in multiple directions, thus facilitating the rotation of the first blocking plate 11 and the second blocking plate 12. The ball seat 27 is respectively equipped with an extension frame 29 and a connecting frame 30. The extension frame 29 is located outside the fixing ring 14, and the connecting frame 30 is located inside the fixing ring 15. Inside the ring 14, the connecting frame 30 can be connected to the corresponding blocking plate. A guide wheel 25 is provided on the extension frame 29. A first circular frame 22 and a second circular frame 23 are respectively provided on both sides of the guide wheel 25. A rotating groove 24 is provided between the first circular frame 22 and the second circular frame 23. When the mesh cylinder 15 rotates, the guide wheel 25 can rotate along the rotating groove 24. An offset groove 21 is provided on the first circular frame 22 and the second circular frame 23. The offset groove 21 communicates with the rotating groove 24. The offset groove 21 and the rotating groove 24 are horizontally aligned. When the guide wheel 25 rotates to the position of the eccentric groove 21, the ball seat 27 will rotate and move vertically. The ball seat 27 will then drive the first blocking plate 11 and the second blocking plate 12 to rotate, causing them to open and allowing the grain to flow. When the guide wheel 25 rotates back into the rotating groove 24, the first blocking plate 11 and the second blocking plate 12 will return to their original positions. The mesh cylinder 15 is equipped with several fixed rings 14, each corresponding to a rotating groove 24 and an eccentric groove 21. The different positions of each eccentric groove 21 result in different opening times for the first blocking plate 11 and the second blocking plate 12 on the mesh cylinder 15. The first blocking plate 11 and the second blocking plate 12 can open sequentially, allowing the grain to fall sequentially and preventing it from passing through the mesh cylinder 15 too quickly. Each stage of grain falling is impacted by the first blocking plate 11 and the second blocking plate 12, causing vibration and facilitating the removal of impurities.

[0039] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A fully automatic grain dryer with impurity removal function, comprising a placement rack (1), a drying cylinder (2), a hot air pipe (3), and a hot air box (6), wherein the hot air box (6) is connected to the drying cylinder (2) via the hot air pipe (3), characterized in that, The drying cylinder (2) is positioned between two side racks (1). A mesh cylinder (15) is rotatably mounted inside the drying cylinder (2). The mesh cylinder (15) and the drying cylinder (2) are arranged in parallel. The drying cylinder (2) is inclined on the rack (1). A discharge port (10) is provided on the side edge of the drying cylinder (2). The discharge port (10) is slidably connected to a first partition (8) and a second partition (9). The pressing blocks (16) on the first partition (8) and the second partition (9) correspond to the top blocks (2) on the mesh cylinder (15). 6) The extrusion blocks (16) on the first partition (8) and the second partition (9) overlap each other. A guide wheel (25) is provided on one side of the top block (26). The guide wheel (25) is rotatably connected in the rotating groove (24). A slant groove (21) is provided on one side of the rotating groove (24). The guide wheel (25) is connected to the corresponding first blocking plate (11) and second blocking plate (12). The first blocking plate (11) and the second blocking plate (12) are both located inside the mesh cylinder (15). A plurality of fixing rings (14) are evenly arranged on the mesh cylinder (15). Each fixed ring (14) corresponds to a rotating groove (24) and an offset groove (21). The position of each offset groove (21) is different. A rotating opening (28) is provided on the fixed ring (14). The rotating opening (28) is circular. A ball seat (27) is rotatably connected inside the rotating opening (28). The diameter of the ball seat (27) is the same as that of the rotating opening (28). The ball seat (27) drives the first blocking plate (11) and the second blocking plate (12) to rotate. An extension frame (29) and a connecting frame (30) are respectively provided on both sides of the ball seat (27). (30) is connected to the corresponding first blocking plate (11) and second blocking plate (12), and the first blocking plate (11) and the second blocking plate (12) are both semi-circular; the extension frame (29) is provided with a guide wheel (25), and the extension frame (29) on one side of the guide wheel (25) is provided with a top block (26), the top block (26) corresponds to the extrusion seat, and the guide wheel (25) is located in the rotating groove (24) of the first round frame (22) and the second round frame (23); the first round frame (22) and the second round frame (23) are respectively provided on both sides of the guide wheel (25).

2. The fully automatic grain dryer with impurity removal function as described in claim 1, characterized in that: The discharge port (10) is located on the vertical bottom side of the drying cylinder (2). The discharge port (7) is provided on one end of the mesh cylinder (15) inside the drying cylinder (2). The discharge port (7) is located on the lower side of the inclined position of the drying cylinder (2). The inlet port (4) is provided on the other end of the mesh cylinder (15) inside the drying cylinder (2). The inlet port (4) is located on the higher side of the inclined position of the drying cylinder (2).

3. The fully automatic grain dryer with impurity removal function as described in claim 2, characterized in that: A servo motor (5) is installed below the feed inlet (4) of the mesh cylinder (15) inside the drying cylinder (2). The servo motor (5) is detached and connected to the placement frame (1) on one side. The output end of the servo motor (5) is connected to the outer wall of the feed inlet (4) of the mesh cylinder (15) via a belt. The belt of the output end of the servo motor (5) is sleeved on the feed inlet (4).

4. The fully automatic grain dryer with impurity removal function as described in claim 1, characterized in that: The first partition (8) and the second partition (9) are located inside the drying cylinder (2). Both the first partition (8) and the second partition (9) are provided with extrusion blocks (16). The extrusion blocks (16) on the first partition (8) and the second partition (9) have the same structure. The extrusion blocks (16) at adjacent ends on the first partition (8) and the second partition (9) are all sloped.

5. A fully automatic grain dryer with impurity removal function as described in claim 4, characterized in that: The overlapping extrusion block (16) has an overall V-shaped shape. The extrusion block (16) on the first partition (8) and the second partition (9) is provided with a guide rod (17). The guide rod (17) and the extrusion block (16) are arranged in a straight line. The guide rod (17) is provided with a fixed seat (19) in the direction of movement.

6. A fully automatic grain dryer with impurity removal function as described in claim 5, characterized in that: The fixed seat (19) has a guide opening (20), and the guide rod (17) is slidably connected in the guide opening (20) of the fixed seat (19). The fixed seat (19) is set on the inner wall of the drying cylinder (2). A reset spring (18) is sleeved on the guide rod (17). The reset spring (18) is located on the guide rod (17) between the fixed seat (19) and the extrusion block (16). One end of the reset spring (18) is connected to the fixed seat (19).

7. A fully automatic grain dryer with impurity removal function as described in claim 6, characterized in that: The first round frame (22) and the second round frame (23) are each provided with a fixing frame (13). The fixing frame (13) is set on the inner wall of the drying cylinder (2). The eccentric groove (21) on the first round frame (22) and the second round frame (23) is U-shaped. The two ends of the eccentric groove (21) are connected to the rotating groove (24).

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