A crop drying system for improving heat utilization efficiency

Abstract

The present invention discloses a crop drying system with improved heat utilization efficiency, including a grain bin, an air guide cavity is provided in the lower end of the grain bin, a first hot air blower is fixedly connected to the lower end of the air guide cavity, both ends of the drying column are fixedly connected to a swing structure, a connecting cavity is provided in the drying column, a plurality of groups of second air guide holes are provided in the lower end of the annular cavity, the second air guide holes are communicated with the drying chamber, the drying chamber is provided in the lower end of the drying column, and the annular cavity is communicated with a pushing mechanism; the hot air blown out by the second hot air blower enters the upper side of the annular cavity, drives the push plate to start moving, so that the rotation of the transmission roller drives the connecting gear to start rotating, and the hot air blown out by the hot air blower is used as power to stir the grain in the grain bin, and the used hot air will be discharged into the grain bin to dry the grain, thereby achieving full utilization of the hot air blown out by the hot air blower and improving resource utilization efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of grain drying, and in particular to a crop drying system capable of improving heat utilization efficiency. Background Art

[0002] Grain dryer refers to a hot air drying box that uses a rotary heating device and can generate a large amount of hot air in a short time. It can kill insect eggs through high temperature treatment and completely solve the problem of grain drying. With the improvement of grain varieties, the increase in yields and the increase in national investment in grain drying equipment, more and more large, medium and small grain drying facilities are being built.

[0003] For example, the Chinese patent with the announcement number CN218495765U discloses a grain drying silo, including a supporting frame, the supporting frame is provided with a cylindrical mesh, the upper side of the inner wall of the cylindrical mesh is fixedly connected to an angle iron support frame, the active end of the angle iron support frame is provided with a vertically placed auger, the side wall of the auger is provided with a heating cylinder, the bottom of the cylindrical mesh is provided with a first flange, the bottom of the first flange is provided with a lower conical mesh, and the inclination angle of the lower conical mesh is 59 degrees.

[0004] However, the above solution has the following shortcomings: in the above patent, the grain is moved by the auger, and the hot air blown by the hot blower is used to dry the grain driven by the auger. However, for a granary with a large amount of grain piled up, the efficiency of the drying method of moving the grain by the auger is low. At the same time, this drying method does not fully utilize the hot air blown by the hot blower, and the resource utilization rate is low. For this reason, we have introduced a crop drying system that improves heat utilization efficiency. Summary of the Invention

[0005] The object of the present invention is to provide a crop drying system with improved heat utilization efficiency, so as to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A crop drying system for improving heat utilization efficiency comprises a grain bin, an air guide cavity is defined in the lower end of the grain bin, a first hot air blower is fixedly connected to the lower end of the air guide cavity, two groups of filter screens are fixedly connected to the upper end of the air guide cavity, the air guide cavity is communicated with the grain bin through the filter screen, a plurality of drying columns are provided in the grain bin, both ends of the drying columns are fixedly connected to a swing structure, a connecting cavity is defined in the drying columns, a connecting track is provided in the connecting cavity, a driving roller is sleeved on the inner side of the connecting track, both ends of the driving roller are fixedly connected to a connecting shaft, the connecting shaft is movably connected to the grain bin, and a bevel gear is fixedly connected to the end of the connecting shaft away from the driving roller;

[0008] The bevel gear is meshed with a plurality of groups of teeth at one end away from the connecting shaft, and the plurality of groups of teeth are fixedly connected to a T-shaped connecting plate, and the T-shaped connecting plate is movably connected to the grain bin. The T-shaped connecting plate extends out of the grain bin at one end away from the bevel gear and is fixedly connected to a connecting gear, and the connecting gear is meshed with the inner side of the transmission crawler, and the outer side of the transmission crawler is fixedly connected to a plurality of groups of stirring rods;

[0009] Several groups of push plates are fixedly connected to the outside of the connecting track, and the push plates extend into the annular cavity away from the side of the connecting track. The annular cavity is opened in the grain bin, and several groups of first air guide holes are opened on both sides of the annular cavity. The first air guide holes extend to the outside of the grain bin, and several groups of second air guide holes are opened in the lower end of the annular cavity. The second air guide holes are connected with the drying cavity, and the drying cavity is opened in the lower end of the drying column. The annular cavity is connected with the pushing mechanism.

[0010] Preferably, the swing mechanism includes several groups of cross-shaped sliding rods, both ends of the drying column are fixedly connected with cross-shaped sliding rods, the cross-shaped sliding rods are slid into the cross-shaped sliding groove, the cross-shaped sliding groove is opened in the grain bin, the cross-shaped sliding rod extends out of the grain bin away from one end of the drying column, and is fixedly connected to the U-shaped connecting rod, the U-shaped connecting rod is arranged on the outside of the grain bin, and two groups of elliptical shift plates are provided in the U-shaped connecting rod, the two groups of elliptical shift plates are fixedly connected to the output end of the dual-axis motor, and the dual-axis motor is fixedly connected in the grain bin.

[0011] Preferably, a first spring is fixedly connected in the cross-shaped slide groove, the other end of the first spring is fixedly connected to the cross-shaped slide rod, baffles are fixedly connected on both sides of the cross-shaped slide rod, the baffles are slid into the give way groove, and the give way groove is opened in the grain bin.

[0012] Preferably, a plurality of tooth grooves are provided on the outer side of the driving roller, a plurality of tooth rods are fixedly connected to the inner side of the connecting track, the tooth rods are clamped in the tooth grooves, and movable doors are movably connected to the inner and outer sides of the drying chamber.

[0013] Preferably, one end of the grain bin is fixedly connected to a second hot air blower, the output end of the second hot air blower is fixedly connected to an air guide hose, one side of the air guide hose is fixedly connected to several groups of connecting hoses, and the connecting hoses pass through the cross-shaped sliding rod and the U-shaped connecting rod and extend into the upper side of the annular cavity.

[0014] Compared with the prior art, the beneficial effect of the present invention is that the hot air blown out by the second hot air blower enters the upper side of the annular cavity, drives the push plate to start moving, so that the rotation of the transmission roller drives the connecting gear to start rotating, and then the transmission crawler rotates and drives several groups of stirring rods to start rotating. When the hot air enters the lower side of the annular cavity, the hot air will enter the first air guide hole and the second air guide hole in turn. The hot air discharged through the first air guide hole can dry the grain stirred by the stirring rod. The second air guide hole can introduce the hot air into the drying cavity to dry the grain entering the drying cavity. The hot air blown out by the hot air blower is used as power to stir the grain in the grain bin. The hot air after use will be discharged into the grain bin to dry the grain, thereby achieving full utilization of the hot air blown out by the hot air blower and improving resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the top cross-sectional structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the push plate and the transmission track of the present invention;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the drying column of the present invention;

[0019] Figure 5 This is a schematic cross-sectional view of the connection relationship between the crawler and the transmission roller of the present invention;

[0020] Figure 6 This is a structural diagram of the connection between the stirring rod and the transmission crawler of the present invention.

[0021] In the figure: 1. Grain bin; 2. U-shaped connecting rod; 3. Oval paddle; 4. Dual-axis motor; 5. Filter; 6. Cross-shaped slide bar; 7. Drying column; 8. Cross-shaped slide chute; 9. First hot air blower; 10. Air guide cavity; 11. Second hot air blower; 12. Annular cavity; 13. Drive track; 14. Connecting gear; 15. Teeth; 16. Stirring rod; 17. First air guide hole; 18. Drying cavity; 19. Movable door; 20. Second air guide hole; 21. T-shaped connecting plate; 22. Connecting shaft; 23. Drive roller; 24. Connecting track; 25. Push plate; 26. First spring; 27. Baffle; 28. Give way groove; 29. Air guide hose; 30. Connecting hose; 31. Bevel gear; 32. Tooth groove; 33. Gear rod; 34. Connecting cavity. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-6 , the present invention provides a technical solution:

[0024] Example 1:

[0025] A crop drying system for improving heat utilization efficiency includes a grain bin 1, an air guide cavity 10 is opened in the lower end of the grain bin 1, a first hot air blower 9 is fixedly connected to the lower end of the air guide cavity 10, and two groups of filters 5 are fixedly connected to the upper end of the air guide cavity 10. The air guide cavity 10 is connected to the grain bin 1 through the filter 5. When the first hot air blower 9 is turned on, hot air is blown into the air guide cavity 10. The hot air passes through the two groups of filters 5 and enters the grain bin 1 to dry the grain. Several groups of drying columns 7 are arranged in the grain bin 1, and both ends of the drying columns 7 are fixedly connected to the swing structure. A connecting cavity 34 is opened in the drying column 7, and a connecting crawler 24 is provided in the connecting cavity 34. A transmission roller 23 is sleeved on the inner side of the connecting crawler 24. Both ends of the roller 23 are fixedly connected to a connecting shaft 22, and the connecting shaft 22 is movably connected to the grain bin 1. The end of the connecting shaft 22 away from the transmission roller 23 is fixedly connected to a bevel gear 31. After the second hot air blower 11 is turned on, the hot air will enter the air guide hose 29, and the hot air entering the air guide hose 29 will enter the four groups of connecting hoses 30 in turn. The hot air entering the connecting hose 30 will eventually enter the upper side of the annular cavity 12. Since a push plate 25 is provided in the annular cavity 12, the push plate 25 will start to move along the annular cavity 12 under the push of the hot air. The movement of the push plate 25 drives the connecting crawler 24 to start moving, and the connecting crawler 24 drives the several groups of transmission rollers 23 connected inside it to start rotating;

[0026] The bevel gear 31 is meshed with a plurality of groups of teeth 15 at one end away from the connecting shaft 22, and the plurality of groups of teeth 15 are fixedly connected to the T-shaped connecting plate 21. The T-shaped connecting plate 21 is movably connected to the grain bin 1. The T-shaped connecting plate 21 is extended out of the grain bin 1 at one end away from the bevel gear 31 and is fixedly connected to the connecting gear 14. The connecting gear 14 is meshed with the inner side of the transmission crawler 13. The outer side of the transmission crawler 13 is fixedly connected to a plurality of groups of stirring rods 16. The rotation of the transmission roller 23 drives the connecting shaft 22 connected at both ends to start rotating, and the connecting roller 23 is rotated. The rotation of the shaft 22 drives the bevel gear 31 to start rotating, and the rotation of the bevel gear 31 drives the several groups of teeth 15 meshing with it to start rotating. At this time, the T-shaped connecting plate 21 starts rotating, and the rotation of the T-shaped connecting plate 21 drives the connecting gear 14 to start rotating. The synchronous rotation of the several groups of connecting gears 14 can drive the transmission crawler 13 sleeved on the outside thereof to start rotating. The rotation of the transmission crawler 13 drives the several groups of stirring rods 16 connected to the outside thereof to start moving. The several groups of moving stirring rods 16 can stir the grain in the grain bin 1;

[0027] The outer side of the connecting track 24 is fixedly connected with a plurality of push plates 25. The push plates 25 extend into the annular cavity 12 away from the side of the connecting track 24. The push plates 25 fit tightly and slide in the annular cavity 12 so that when the hot air generated by the second hot air blower 11 enters the upper side of the annular cavity 12, the push plates 25 can be pushed to move. The annular cavity 12 is opened in the grain bin 1. A plurality of first air guide holes 17 are opened on both sides of the annular cavity 12. The first air guide holes 17 extend to the outside of the grain bin 1. There are several groups of second air guide holes 20, which are connected to the drying chamber 18. The drying chamber 18 is opened in the lower end of the drying column 7, and the annular cavity 12 is connected to the pushing mechanism. The hot air will enter the several groups of first air guide holes 17 and the second air guide holes 20 in turn. In the process of several groups of stirring rods 16 stirring the grain in the grain bin 1, the hot air discharged from the first air guide holes 17 can dry the grain, and the hot air entering the second air guide holes 20 will enter the drying chamber 18 to dry the grain.

[0028] Example 2:

[0029] On the basis of Example 1, in order to make the hot air blown out from both sides of the drying column 7 to evenly dry the grain in the grain bin 1, and at the same time ensure that there is no slipping in the process of the connecting crawler 24 driving the transmission roller 23 to rotate, the swing mechanism includes several groups of cross-shaped slide bars 6, and both ends of the drying column 7 are fixedly connected with a cross-shaped slide bar 6, the cross-shaped slide bar 6 is slid into the cross-shaped slide groove 8, the cross-shaped slide groove 8 is opened in the grain bin 1, and the cross-shaped slide bar 6 extends out of the grain bin 1 away from one end of the drying column 7 and is fixedly connected to the U-shaped connecting rod 2. The U-shaped connecting rod 2 is arranged on the outside of the grain bin 1, and two groups of elliptical dial plates 3 are provided in the U-shaped connecting rod 2. The two groups of elliptical dial plates 3 are fixed The U-shaped connecting rod 2 is pushed to the right by the elliptical plate 3, and the U-shaped connecting rod 2 is pushed to the right by the elliptical plate 3. The U-shaped connecting rod 2 moves to the right and drives the groups of cross-shaped sliding rods 6 connected to the inner side thereof to move to the right along the cross-shaped sliding groove 8. The groups of drying columns 7 located in the grain bin 1 are driven to move to the left. When the elliptical plate 3 cancels the contact with the U-shaped connecting rod 2, the U-shaped connecting rod 2 will move to the left under the elastic force of the first spring 26 and drive the groups of drying columns 7 to move, so that the drying columns 7 can swing back and forth in the grain bin 1.

[0030] A first spring 26 is fixedly connected in the cross-shaped slide 8, and the other end of the first spring 26 is fixedly connected to the cross-shaped slide bar 6. Baffles 27 are fixedly connected on both sides of the cross-shaped slide bar 6. The baffles 27 are slidably connected in the give way groove 28. The give way groove 28 is opened in the grain bin 1. The baffles 27 can block the grain in the grain bin 1 in the give way groove 28 to prevent the grain from entering the cross-shaped slide 8 and affecting the normal movement of the cross-shaped slide bar 6. Several groups of tooth grooves 32 are opened on the outside of the transmission roller 23, and several groups of gears are fixedly connected to the inside of the connecting track 24. 33, the gear rod 33 is engaged in the tooth groove 32, and the gear rod 33 is engaged in the tooth groove 32 to prevent the connection track 24 from slipping during the rotation of the transmission roller 23. The inner and outer sides of the drying chamber 18 are movably connected with movable doors 19. One end of the grain bin 1 is fixedly connected to the second hot air blower 11, and the output end of the second hot air blower 11 is fixedly connected to the air guide hose 29. One side of the air guide hose 29 is fixedly connected to several groups of connecting hoses 30. The connecting hose 30 passes through the cross-shaped slide bar 6 and the U-shaped connecting rod 2 and extends into the upper side of the annular cavity 12.

[0031] After the elliptical plate 3 cancels the contact with the U-shaped connecting rod 2, the U-shaped connecting rod 2 will drive the several groups of cross-shaped sliding rods 6 connected thereto to start moving to the right along the cross-shaped sliding groove 8, at this time, the first spring 26 is compressed, and at the same time, the several groups of drying columns 7 located in the grain bin 1 will be driven to move left synchronously. When the elliptical plate 3 cancels the contact with the U-shaped connecting rod 2, at this time, under the elastic force of the first spring 26, the U-shaped connecting rod 2 will quickly move left and drive the several groups of drying columns 7 to move synchronously, realizing the drying columns 7 swinging back and forth in the grain bin 1;

[0032] After the second hot air blower 11 is turned on, the hot air will enter the air guide hose 29, and the hot air entering the air guide hose 29 will enter the four sets of connecting hoses 30 in sequence. The hot air entering the connecting hoses 30 will eventually enter the upper side of the annular cavity 12. Since a push plate 25 is provided in the annular cavity 12, the push plate 25 will start to move along the annular cavity 12 under the push of the hot air. The movement of the push plate 25 drives the connecting crawler 24 to start moving, and the connecting crawler 24 drives the several sets of driving rollers 23 connected inside it to start rotating. The rotation of the driving roller 23 drives the two ends of the driving roller 23 to start rotating. The connected connecting shaft 22 starts to rotate, and the rotation of the connecting shaft 22 drives the bevel gear 31 to start rotating. The rotation of the bevel gear 31 drives the several groups of teeth 15 meshing with it to start rotating. At this time, the T-shaped connecting plate 21 starts to rotate, and the rotation of the T-shaped connecting plate 21 drives the connecting gear 14 to start rotating. The synchronous rotation of the several groups of connecting gears 14 can drive the transmission crawler 13 sleeved on the outside to start rotating. The rotation of the transmission crawler 13 drives the several groups of stirring rods 16 connected to the outside to start moving. The several groups of moving stirring rods 16 can stir the grain in the grain bin 1;

[0033] When the hot air pushes the push plate 25 to move to the lower side of the annular cavity 12, the hot air will enter into several groups of first air guide holes 17 and second air guide holes 20 in turn. In the process of several groups of stirring rods 16 stirring the grain in the grain bin 1, the hot air discharged from the first air guide holes 17 can dry the grain, and the hot air entering the second air guide holes 20 will enter the drying chamber 18. Since the movable door 19 connected to the inside and outside of the drying chamber 18 can only be opened to the right, when the drying column 7 moves to the right, the grain in the drying chamber 18 will not be discharged. When the drying column 7 moves to the left, the two groups of movable doors 19 are in an openable state. At this time, the grain will pass through the drying chamber 18 and be discharged into the grain bin 1. When entering the drying chamber 18, the grain will be dried by the heat discharged from the second air guide holes 20.

[0034] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A crop drying system for improving heat utilization efficiency, comprising a grain silo, characterized in that: An air guide cavity is provided in the lower end of the grain bin, a first hot air blower is fixedly connected to the lower end of the air guide cavity, two groups of filter screens are fixedly connected to the upper end of the air guide cavity, the air guide cavity is communicated with the grain bin through the filter screen, a plurality of drying columns are provided in the grain bin, both ends of the drying columns are fixedly connected to the swing mechanism, a connecting cavity is provided in the drying column, a connecting track is provided in the connecting cavity, a transmission roller is sleeved on the inner side of the connecting track, both ends of the transmission roller are fixedly connected to a connecting shaft, the connecting shaft is movably connected to the grain bin, and the connecting shaft is fixedly connected to a bevel gear at one end away from the transmission roller; The bevel gear is meshed with a plurality of groups of teeth at one end away from the connecting shaft, and the plurality of groups of teeth are fixedly connected to a T-shaped connecting plate, and the T-shaped connecting plate is movably connected to the grain bin. The T-shaped connecting plate extends out of the grain bin at one end away from the bevel gear and is fixedly connected to a connecting gear, and the connecting gear is meshed with the inner side of the transmission crawler, and the outer side of the transmission crawler is fixedly connected to a plurality of groups of stirring rods; A plurality of push plates are fixedly connected to the outer side of the connecting crawler, and the push plates extend into the annular cavity away from the side of the connecting crawler. The annular cavity is opened in the grain bin, and a plurality of first air guide holes are opened on both sides of the annular cavity. The first air guide holes extend to the outside of the grain bin, and a plurality of second air guide holes are opened in the lower end of the annular cavity. The second air guide holes are connected to the drying cavity, and the drying cavity is opened in the lower end of the drying column. The annular cavity is connected to the pushing mechanism; The outer side of the driving roller is provided with a plurality of tooth grooves, the inner side of the connecting track is fixedly connected with a plurality of tooth rods, the tooth rods are clamped in the tooth grooves, and the inner side and the outer side of the drying chamber are movably connected with movable doors.

2. The crop drying system for improving heat utilization efficiency according to claim 1, characterized in that: The swing mechanism includes several groups of cross-shaped sliding rods, and both ends of the drying column are fixedly connected with a cross-shaped sliding rod. The cross-shaped sliding rod is slid into the cross-shaped slide groove, and the cross-shaped slide groove is opened in the grain bin. The cross-shaped sliding rod extends out of the grain bin away from one end of the drying column and is fixedly connected to the U-shaped connecting rod. The U-shaped connecting rod is arranged on the outside of the grain bin, and two groups of elliptical shift plates are provided in the U-shaped connecting rod. The two groups of elliptical shift plates are fixedly connected to the output end of the dual-axis motor, and the dual-axis motor is fixedly connected to the grain bin.

3. The crop drying system for improving heat utilization efficiency according to claim 2, characterized in that: A first spring is fixedly connected in the cross-shaped slide groove, and the other end of the first spring is fixedly connected to the cross-shaped slide rod. Baffles are fixedly connected on both sides of the cross-shaped slide rod. The baffles are slidably connected in the give way groove, and the give way groove is opened in the grain bin.

4. The crop drying system for improving heat utilization efficiency according to claim 1, characterized in that: One end of the grain bin is fixedly connected to a second hot air blower, the output end of the second hot air blower is fixedly connected to an air guide hose, one side of the air guide hose is fixedly connected to several groups of connecting hoses, and the connecting hoses pass through the cross-shaped sliding rod and the U-shaped connecting rod and extend into the upper side of the annular cavity.

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