A safe heating recirculating continuous grain drying apparatus

Abstract

The utility model provides a safe heating can circulate continuous grain drying equipment relates to grain drying technical field, including drying tower, hot blast furnace, the left side of drying tower is equipped with grain feeding mechanism, the inside of drying tower is equipped with the sub -packaging storage material mechanism, and the sub -packaging storage material mechanism includes the multiple storage material barrels that are in the circumferential arrangement and are equipped on the upper surface of bearing ring board, and the inside of each storage material barrel is equipped with the anti -blocking mechanism for the grain scattering, the utility model discloses a sub -packaging storage material mechanism and anti -blocking mechanism are established, and the continuous conveying of the grain that waits to dry is realized to the inside of drying tower with grain feeding mechanism, then, through sub -packaging storage material mechanism, the grain is distributed to multiple storage material barrels, thereby reducing single -time processing capacity and reducing ventilation resistance, improving airflow distribution, and in the drying process, the anti -blocking mechanism is started to the grain in each storage material barrel and is scattered by the drive mechanism, keeps its loose state to facilitate hot -blast penetration, effectively avoids the " heat damage " phenomenon caused by local overheating.

Description

Technical Field

[0001] This utility model relates to the field of grain drying technology, specifically to a safe, heating, and continuously circulating grain drying device. Background Technology

[0002] After harvesting, grains typically have a high moisture content. If they are not dried in time, they are prone to mold or sprouting during storage, leading to serious grain loss and quality decline. To overcome the shortcomings of traditional natural sun-drying methods, such as being greatly affected by weather, low efficiency, and prone to secondary pollution, mechanized equipment using hot air as the drying medium has been gradually promoted and applied. This type of equipment usually feeds the entire batch of harvested grain into the machine, uses a burner or electric heating device to generate hot air, and then uses a fan to make the hot air penetrate the grain layer, thereby achieving effective removal of moisture.

[0003] Although these mechanized devices avoid the interference of weather factors on the drying operation, there are still obvious defects in actual operation. Because they usually adopt a batch operation method, all the grains are piled up in the drying box at one time, which leads to increased ventilation resistance and uneven airflow distribution inside the box. Grains located in the central area of ​​the drying box are particularly prone to uneven drying because hot air cannot penetrate effectively. Furthermore, some areas may suffer "heat damage" due to prolonged exposure to high temperatures, while other areas may fail to meet the drying requirements due to insufficient heat, which seriously affects the consistency of the final product quality. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows: This utility model provides a safe, heating, and continuously circulating grain drying device, including a drying tower with an air outlet on one side of the top of the drying tower; a hot air furnace installed on one side of the bottom of the drying tower, the output end of which is fixedly connected to an air supply pipe for supplying hot air to the drying tower, both ends of which are equipped with multi-layer spark interception plates; a grain feeding mechanism for continuously conveying grain is installed on the left side of the drying tower; a load-bearing ring plate is fixedly connected inside the drying tower, and a grain dispensing and storage mechanism is provided inside the drying tower, the dispensing and storage mechanism including multiple storage cylinders arranged circumferentially on the upper surface of the load-bearing ring plate, each storage cylinder having an anti-caking mechanism for breaking up grain. The bottom of the drying tower is equipped with a drive mechanism for driving the anti-caking mechanism; the grain is continuously fed into different storage cylinders by the grain feeding mechanism, and the anti-caking mechanism is driven by the drive mechanism to break up the grain in the storage cylinder. At the same time, the hot air generated by the hot air furnace is sent into the drying tower through the air supply pipe to dry the grain, so as to achieve continuous and uniform drying of the grain.

[0005] Preferably, the anti-caking mechanism includes a rotating rod rotatably connected to the middle of the storage cylinder, a support frame fixedly connected to the storage cylinder at the top of the rotating rod, limiting plates fixedly connected to the rotating rod on both the upper and lower sides of the support frame, a limiting seat fixedly connected to the support frame at the bottom of the rotating rod, and evenly distributed support rods fixedly connected to the outer surface of the rotating rod. The bottom of the rotating rod passes through the storage cylinder and is fixedly connected to a gear. The driving mechanism drives the rotating rod and support rods to rotate by driving the gear, thereby dispersing the grains.

[0006] Preferably, an adjustment assembly for adjusting the position of the storage cylinder is provided at the middle of the top of the drying tower. The adjustment assembly includes a second servo motor fixedly installed at the middle of the top of the drying tower. The output end of the second servo motor is fixedly connected to a first drive rod. The first drive rod passes through the drying tower and is fixedly connected to several connecting plates. The connecting plates are fixedly connected to the storage cylinder. The top of the storage cylinder is open, and a discharge pipe is fixedly connected to one side of the bottom. An electric control valve is provided inside the discharge pipe.

[0007] Preferably, the driving mechanism includes a third servo motor fixedly connected to the middle of the bottom of the drying tower, a second driving rod fixedly connected to the output end of the third servo motor, a gear ring fixedly connected to the top end of the second driving rod, and the gear ring meshing with the gear.

[0008] Preferably, a collection bucket is fixedly connected to the bottom of the drying tower, a conical gas collecting hopper is fixedly connected to the middle of the inside of the collection bucket, an annular frame fixedly connected to the drying tower is provided directly above the conical gas collecting hopper, a dispersing hopper is fixedly connected to the middle of the upper surface of the annular frame, and a dustproof mesh plate is fixedly connected between the dispersing hopper and the conical gas collecting hopper.

[0009] Preferably, a conical hopper for gathering grains is provided directly above the dispersing hopper, and a triangular bracket fixedly connected to the drying tower is provided on the outer circular surface of the bottom end of the conical hopper; a fan fixedly connected to the second drive rod is provided at the inner bottom of the dispersing hopper; the drive mechanism also includes a connecting sleeve fixedly connected to the middle of the outer circular surface of the second drive rod, and a connecting rod is fixedly connected to one side of the connecting sleeve, through which a cleaning plate is fixedly connected.

[0010] Preferably, the grain feeding mechanism includes a dustproof material cylinder located on the left side of the drying tower. A feeding box is fixedly connected to one side of the bottom of the dustproof material cylinder. A feeding plate is rotatably connected inside the dustproof material cylinder. A receiving frame for cooperating with the feeding plate is fixedly connected to the top of the dustproof material cylinder near the drying tower. A windbreak frame fixedly connected to the dustproof material cylinder is provided on the outside of the receiving frame. A feeding cylinder fixedly connected to the drying tower is provided at the bottom of the receiving frame. A conveying cover is fixedly connected to one side of the bottom of the feeding cylinder. An impeller is rotatably connected inside the feeding cylinder. A first servo motor for driving the impeller is fixedly connected to one end face of the feeding cylinder.

[0011] Preferably, a recovery pump is fixedly installed on one side of the bottom of the dustproof material cylinder. One end of the recovery pump is fixedly connected to a second recovery pipe, and the other end is fixedly connected to a first recovery pipe. One end of the first recovery pipe passes through the drying tower and is fixedly connected to the collection bucket. A conveying pipe for conveying dried grains is fixedly connected to one side of the bottom of the collection bucket.

[0012] The above-described solution of this utility model has at least the following beneficial effects: (1) This scheme sets up a dispensing and storage mechanism and an anti-caking mechanism, and uses a grain feeding mechanism to realize the continuous conveying of the grain to be dried into the drying tower; then, the dispensing and storage mechanism distributes the grain into multiple storage cylinders, thereby reducing the amount processed at one time and reducing ventilation resistance, and improving airflow distribution; and during the drying process, the drive mechanism activates the anti-caking mechanism to break up the grain in each storage cylinder, keeping it loose so that hot air can penetrate, effectively avoiding the phenomenon of "heat damage" caused by local overheating.

[0013] (2) By setting up conical air collecting hoppers and dispersing hoppers, the conical air collecting hoppers are used to initially integrate and guide the airflow during the grain dispersion process. The airflow then passes through the dustproof mesh plate, which is fixedly connected between the dispersing hopper and the conical air collecting hopper, effectively blocking the dust from settling downwards. At the same time, the fan at the bottom of the second drive rod operates synchronously with the drive mechanism, improving the airflow circulation efficiency in the tower and ensuring that the hot air and grains are in full contact. The conical hopper located directly above the dispersing hopper gathers and guides the falling grains, ensuring that the grains fall accurately into the designated drying area. During the grain drying process, the connecting sleeve on the outer circle of the second drive rod drives the cleaning plate to rotate continuously through the connecting rod, automatically cleaning the surface of the dustproof mesh plate and effectively preventing the mesh from clogging. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side sectional view of the dustproof material cylinder of this utility model; Figure 3 This is a cross-sectional view of the grain feeding mechanism of this utility model. Figure 4 This is an internal sectional view of the hot air furnace of this utility model; Figure 5 This is a schematic diagram showing the connection between the drive mechanism and the recovery pump of this utility model; Figure 6 This is a connection diagram of the material dispensing and storage mechanism of this utility model; Figure 7 This is a connection diagram of the anti-caking mechanism of this utility model; Figure 8 This is a connection diagram of the drive mechanism of this utility model; Figure 9 This is a schematic diagram showing the connection between the anti-caking mechanism and the drive mechanism of this utility model; Figure 10 This is an internal cross-sectional view of the dispersion bucket of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Drying tower; 2. Air outlet; 3. Hot air furnace; 31. Air supply pipe; 4. Grain feeding mechanism; 41. Dustproof hopper; 42. Feeding box; 43. Feeding plate; 44. Wind baffle; 45. Receiving frame; 46. Feeding hopper; 47. Conveying cover; 48. Impeller; 49. First servo motor; 5. Load-bearing ring plate; 6. Dispensing and storage mechanism; 61. Second servo motor; 62. First drive rod; 63. Connecting plate; 64. Storage cylinder; 65. Feeding pipe; 7. Anti-caking mechanism; 71. Rotating rod; 72. Support frame; 73. Limiting plate; 74. Limiting seat; 75. Support rod; 76. Gear; 8. Conical hopper; 81. Triangular bracket; 9. Circular frame; 10. Dispersion hopper; 11. Dustproof mesh plate; 12. Collection bucket; 13. Conical gas collecting hopper; 14. Drive mechanism; 141. Third servo motor; 142. Second drive rod; 143. Gear ring; 144. Connecting sleeve; 145. Connecting rod; 146. Cleaning plate; 15. Fan; 16. Recovery pump; 161. First recovery pipe; 162. Second recovery pipe; 17. Delivery pipe. Detailed Implementation

[0017] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0018] like Figures 1 to 10 As shown, an embodiment of this utility model provides a safe, heating, and continuously circulating grain drying device, including a drying tower 1, with an air outlet 2 on one side of the top of the drying tower 1; a hot air furnace 3 is installed on one side of the bottom of the drying tower 1, and the output end of the hot air furnace 3 is fixedly connected to an air supply pipe 31 for supplying hot air to the drying tower 1, with spark multi-layer interception plates at both ends of the air supply pipe 31; a grain feeding mechanism 4 for continuously conveying grain is installed on the left side of the drying tower 1; a load-bearing ring plate 5 is fixedly connected inside the drying tower 1, and a grain dispensing and storage mechanism 6 is provided inside the drying tower 1 for storing grain, the dispensing and storage mechanism 6 including a plurality of storage cylinders 64 arranged circumferentially on the upper surface of the load-bearing ring plate 5, and each storage cylinder 64 is provided with an anti-caking mechanism 7 for breaking up grain. The bottom of the drying tower 1 is equipped with a drive mechanism 14 for driving the anti-caking mechanism 7. Grains are continuously fed into different storage cylinders 64 by the grain feeding mechanism 4, and the anti-caking mechanism 7 is driven by the drive mechanism 14 to break up the grains in the storage cylinders 64. At the same time, the hot air generated by the hot air furnace 3 is sent into the drying tower 1 through the air supply pipe 31 to dry the grains, so as to achieve continuous and uniform drying of the grains.

[0019] To address the technical problems of traditional grain drying equipment, such as grain accumulation inside the drying chamber, high ventilation resistance, uneven airflow distribution, and uneven drying, particularly in the central area where hot air cannot effectively penetrate, and "heat damage" in some areas due to prolonged high-temperature contact, the above-mentioned technical solution is adopted. This solution mainly consists of a drying tower 1, a hot air furnace 3, a grain feeding mechanism 4, a dispensing and storage mechanism 6, an anti-caking mechanism 7, and a drive mechanism 14. In operation, the grain feeding mechanism 4 first... The grain to be dried is continuously conveyed into the drying tower 1. Then, the grain is distributed into multiple storage cylinders 64 arranged circumferentially on the upper surface of the load-bearing ring plate 5 by the dispensing and storage mechanism 6. This dispensing structure transforms the traditional large-scale stacking into small-unit dispensing, effectively reducing the thickness of the grain layer and ventilation resistance. Simultaneously, the drive mechanism 14 located at the bottom of the drying tower 1 is activated to drive the anti-caking mechanism 7 inside each storage cylinder 64 to continuously disperse the grain, keeping it loose and preventing clumping. During this process, hot air generated by the hot air furnace 3 installed on one side of the bottom of the drying tower 1 is sent into the drying tower 1 through a fixed air supply pipe 31. The hot air, upon passing through the storage cylinders 64, fully contacts the dispersed grain, removing moisture before exiting from the air outlet 2 on one side of the top of the drying tower 1. Furthermore, during the hot air delivery process, the multi-layered spark interception plates installed at both ends of the air delivery pipe 31 effectively prevent sparks from entering the drying tower 1, ensuring the safety and reliability of the drying process. Through the above-mentioned workflow, the grain is distributed into multiple storage cylinders 64 by the dispensing and storage mechanism 6, fundamentally solving the problems of high ventilation resistance and uneven drying in the central area caused by the large accumulation of grain in traditional equipment. Moreover, the anti-caking mechanism 7 continuously disperses the grain in the storage cylinders 64, ensuring that the hot air can penetrate the grain layer evenly, effectively preventing the "heat damage" phenomenon caused by local overheating. At the same time, the grain feeding mechanism 4 achieves continuous feeding, which, together with the operation of multiple storage cylinders 64, forms a continuous drying process, greatly improving the drying efficiency. In addition, the multi-layered spark interception plates installed at both ends of the air delivery pipe 31 effectively eliminate the fire hazard during the drying process, improving the safety performance of the equipment.

[0020] like Figures 1 to 10 As shown, the anti-caking mechanism 7 includes a rotating rod 71 rotatably connected to the middle of the storage cylinder 64. The top of the rotating rod 71 is provided with a support frame 72 fixedly connected to the storage cylinder 64. The upper and lower sides of the support frame 72 are provided with limiting plates 73 fixedly connected to the rotating rod 71. The bottom of the rotating rod 71 is provided with a limiting seat 74 fixedly connected to the support frame 72. The outer circular surface of the rotating rod 71 is fixedly connected with evenly distributed support rods 75. The bottom of the rotating rod 71 passes through the storage cylinder 64 and is fixedly connected with a gear 76. The driving mechanism 14 drives the rotating rod 71 and support rods 75 to rotate through the driving gear 76, so as to disperse the grain.

[0021] like Figures 1 to 10 As shown, an adjustment assembly for adjusting the position of the storage cylinder 64 is provided at the middle of the top of the drying tower 1. The adjustment assembly includes a second servo motor 61 fixedly installed at the middle of the top of the drying tower 1. The output end of the second servo motor 61 is fixedly connected to a first drive rod 62. The first drive rod 62 passes through the drying tower 1 and is fixedly connected to several connecting plates 63. The connecting plates 63 are fixedly connected to the storage cylinder 64. The top of the storage cylinder 64 is open, and a discharge pipe 65 is fixedly connected to one side of the bottom. An electric control valve is provided inside the discharge pipe 65.

[0022] like Figures 1 to 10 As shown, the drive mechanism 14 includes a third servo motor 141 fixedly connected to the middle of the bottom of the drying tower 1. The output end of the third servo motor 141 is fixedly connected to a second drive rod 142. The top end of the second drive rod 142 is fixedly connected to a gear ring 143, which meshes with the gear 76.

[0023] To address the technical problems of traditional grain drying equipment, such as poor ventilation, uneven drying, and inability to achieve continuous operation due to grain accumulation, this system employs the following steps: First, the second servo motor 61 in the adjustment assembly drives the first drive rod 62 to rotate. This, via the connecting plate 63, adjusts the position of multiple circumferentially arranged storage cylinders 64, ensuring that the open-top storage cylinders 64 are aligned with the feed inlet for continuous grain filling. After the storage cylinders 64 are filled with grain, the third servo motor 141 is activated, driving the second drive rod 142 and the gear ring 143 fixed at its top to rotate. The meshing transmission between the gear ring 143 and the gears 76 at the bottom of each storage cylinder 64 drives the rotating rod 71 to rotate inside the storage cylinder 64. Simultaneously, the evenly distributed support rods 75 fixed to the rotating rod 71 rotate accordingly, continuously dispersing and stirring the grain inside the storage cylinder 64. During this process, the support frame 72 provides stable support, and the limiting plate 73 and limiting seat 74... To ensure the stability of the rotating rod 71 during rotation; and after the grain drying is completed, the electric control valve in the discharge pipe 65 on one side of the bottom of the storage cylinder 64 opens, allowing the dried grain to be discharged smoothly; in the entire grain drying process, not only can the multiple storage cylinders 64 be used in a cycle through the adjustment component, solving the problem of continuous operation of traditional equipment; but also the support rod 75 in the anti-caking mechanism 7 continuously disperses the grain under the drive of the rotating rod 71, effectively solving the problem of uneven drying caused by grain accumulation and clumping; and through the drive mechanism 14, the meshing transmission between the gear ring 143 and the gear 76 realizes that one power source can simultaneously drive the anti-caking mechanism 7 in multiple storage cylinders 64, improving transmission efficiency and equipment reliability, so that all components of the entire system work together in a coordinated manner, realizing continuous feeding, uniform drying and smooth discharge of grain in a limited space, significantly improving drying efficiency and quality.

[0024] like Figures 1 to 10 As shown, a collection bucket 12 is fixedly connected to the bottom of the drying tower 1. A conical gas collecting hopper 13 is fixedly connected to the middle of the inside of the collection bucket 12. An annular frame 9, which is fixedly connected to the drying tower 1, is located directly above the conical gas collecting hopper 13. A dispersing hopper 10 is fixedly connected to the middle of the upper surface of the annular frame 9. A dustproof mesh plate 11 is fixedly connected between the dispersing hopper 10 and the conical gas collecting hopper 13.

[0025] like Figures 1 to 10 As shown, a conical hopper 8 for gathering grains is provided directly above the dispersing hopper 10. A triangular bracket 81 fixedly connected to the drying tower 1 is provided on the outer circular surface of the bottom end of the conical hopper 8. A fan 15 fixedly connected to the second drive rod 142 is provided at the inner bottom of the dispersing hopper 10. The drive mechanism 14 also includes a connecting sleeve 144 fixedly connected to the middle of the outer circular surface of the second drive rod 142. A connecting rod 145 is fixedly connected to one side of the connecting sleeve 144, and a cleaning plate 146 is fixedly connected through the connecting rod 145.

[0026] To address the technical problems of uneven hot air distribution, dust accumulation affecting drying efficiency, and safety hazards in traditional grain drying equipment, this system implements a bottom-up hot airflow process during grain drying. First, the airflow is initially integrated and guided by a conical air collecting hopper 13. The airflow then passes through a dustproof mesh plate 11, which is fixedly connected between the dispersing hopper 10 and the conical air collecting hopper 13, effectively preventing dust from settling downwards. Subsequently, the hot air is further evenly dispersed to the drying area by the dispersing hopper 10. Simultaneously, a fan 15, fixedly connected to the bottom of the second drive rod 142... As the drive mechanism 14 operates synchronously, the airflow circulation efficiency inside the tower is improved, ensuring that the hot air and grains are in full contact. The conical hopper 8 located directly above the dispersing hopper 10 gathers and guides the falling grains, ensuring that the grains fall accurately into the designated drying area. During the grain drying process, the connecting sleeve 144 on the outer circular surface of the second drive rod 142 drives the cleaning plate 146 to rotate continuously through the connecting rod 145, automatically cleaning the surface of the dustproof mesh plate 11 and effectively preventing the mesh from clogging. Finally, the dried grains fall from the notch of the ring frame 9 into the bottom collection bucket 12, completing the collection.

[0027] like Figures 1 to 10As shown, the grain feeding mechanism 4 includes a dustproof material cylinder 41 located on the left side of the drying tower 1. A feeding box 42 is fixedly connected to one side of the bottom of the dustproof material cylinder 41. A feeding plate 43 is rotatably connected inside the dustproof material cylinder 41. A receiving frame 45 that works with the feeding plate 43 is fixedly connected to the top of the dustproof material cylinder 41 near the drying tower 1. A windbreak frame 44 that is fixedly connected to the dustproof material cylinder 41 is provided on the outside of the receiving frame 45. A feeding cylinder 46 that is fixedly connected to the drying tower 1 is provided at the bottom of the receiving frame 45. A conveying cover 47 is fixedly connected to one side of the bottom of the feeding cylinder 46. An impeller 48 is rotatably connected inside the feeding cylinder 46. A first servo motor 49 for driving the impeller 48 is fixedly connected to one end face of the feeding cylinder 46.

[0028] To address the technical problems of dust overflow, uneven feeding, and inability to achieve continuous automated operation during the feeding process of traditional grain drying equipment, the grain to be dried first enters the feeding box 42 at the bottom of the dustproof hopper 41, and is then lifted by the feeding plate 43 rotatably connected inside the dustproof hopper 41. When the grain is lifted to the top of the dustproof hopper 41, it is received and redirected by the receiving frame 45 fixedly connected to the top of the dustproof hopper 41 near the drying tower 1. The wind baffle 44 set outside the receiving frame 45 effectively prevents hot air leakage from the drying tower 1 and avoids the entry of external air. The grain then falls into the feeding hopper 46 fixedly connected to the drying tower 1, where the first servo motor 49 drives the impeller 48 to rotate. The impeller 48's actuation propels the grain through the conveyor hood 47. The material is fed evenly and continuously into the designated position inside the drying tower 1. Throughout the entire operation, the combined use of the dustproof material cylinder 41 and the wind baffle 44 effectively solves the problems of dust overflow and heat loss during the feeding process of traditional equipment. Furthermore, the coordinated work of the feeding plate 43 and the impeller 48 ensures the continuity and stability of grain conveying, realizing true continuous operation. At the same time, the entire feeding process is carried out in a fully enclosed environment, which not only ensures the cleanliness of the working environment but also prevents heat loss and significantly improves energy utilization efficiency.

[0029] like Figures 1 to 10 As shown, a recovery pump 16 is fixedly installed on one side of the bottom of the dustproof material cylinder 41. One end of the recovery pump 16 is fixedly connected to a second recovery pipe 162, and the other end is fixedly connected to a first recovery pipe 161. One end of the first recovery pipe 161 passes through the drying tower 1 and is fixedly connected to the collection bucket 12. A conveying pipe 17 for conveying dried grains is fixedly connected to one side of the bottom of the collection bucket 12.

[0030] After the dried grains are collected in the collection bin 12, most of the grains are output to the next process through the conveying pipe 17, which is fixedly connected to the bottom side of the collection bin 12. At the same time, the recovery pump 16, which is fixedly installed on the bottom side of the dustproof material cylinder 41, starts to run. It sucks in the grains remaining in the collection bin 12 through the first recovery pipe 161, which is fixedly connected to one end, and then transports the grains back to the dustproof material cylinder 41 through the second recovery pipe 162, which is fixedly connected to the other end. The use of the recovery pump 16 in conjunction with the first recovery pipe 161 and the second recovery pipe 162 effectively solves the waste problem caused by grain residue in traditional equipment.

[0031] Working principle: First, automated feeding is achieved through the grain feeding mechanism 4. The grain to be dried enters the feeding box 42 at the bottom of the dustproof material cylinder 41, is lifted to the top by the feeding plate 43, and falls into the feeding cylinder 46 after being turned by the receiving frame 45. Then, the first servo motor 49 drives the impeller 48 to feed the grain evenly and continuously into the drying tower 1 through the conveying cover 47. Next, the grain is managed by the dispensing and storage mechanism 6. The second servo motor 61 in the adjusting component drives the first drive rod 62 to rotate, and the connecting plate 63 drives the circumferentially arranged storage cylinders 64 to adjust their positions so that each storage cylinder 64 is aligned with the feed inlet in sequence to complete the continuous dispensing of grain. During the drying process, the third servo motor 141 of the drive mechanism 14 drives the second drive rod 142 and the gear ring 143 to rotate. The gear ring 143 and the bottom teeth of each storage cylinder 64 are connected by a tooth. The meshing transmission of wheel 76 drives the rotating rod 71 and its support rod 75 to rotate inside the storage cylinder 64, continuously breaking up the grains and preventing clumping. Throughout the process, the hot air generated by the hot air furnace 3 is sent into the drying tower 1 through the air supply pipe 31. The hot air passes through the conical air collecting hopper 13, the dustproof mesh plate 11 and the dispersing hopper 10 in sequence to achieve uniform distribution. After fully contacting the broken grains, it is discharged from the air outlet 2. During this process, the fan 15 enhances the airflow circulation, and the cleaning plate 146 automatically cleans the dustproof mesh plate 11 to ensure stable system operation. After drying is completed, the electric control valve of the discharge pipe 65 at the bottom of the storage cylinder 64 is opened, and the dried grains fall into the collection bucket 12. Most of them are output through the conveying pipe 17, and the remaining part is recycled by the recovery pump 16 through the first recovery pipe 161 and the second recovery pipe 162 to the dustproof material cylinder 41 for recycling.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A safe, heating, recirculating, continuous grain drying device, comprising a drying tower (1), wherein an air outlet (2) is provided on one side of the top of the drying tower (1); characterized in that, A hot air furnace (3) is installed on one side of the bottom of the drying tower (1). The output end of the hot air furnace (3) is fixedly connected to a gas supply pipe (31) for supplying hot air to the drying tower (1). Both ends of the gas supply pipe (31) are equipped with multi-layer spark interception plates. A grain feeding mechanism (4) for continuously conveying grain is installed on the left side of the drying tower (1). A load-bearing ring plate (5) is fixedly connected inside the drying tower (1). A grain dispensing and storage mechanism (6) for storing grain is provided inside the drying tower (1). The grain dispensing and storage mechanism (6) includes multiple storage cylinders (64) arranged in a circular pattern on the upper surface of the load-bearing ring plate (5). Each storage cylinder (64) is equipped with an anti-caking mechanism (7) for breaking up grain. The bottom of the drying tower (1) is provided with a drive mechanism (14) for driving the anti-caking mechanism (7); the grain is continuously fed into different storage cylinders (64) by the grain feeding mechanism (4), and the anti-caking mechanism (7) is driven by the drive mechanism (14) to break up the grain in the storage cylinder (64). At the same time, the hot air generated by the hot air furnace (3) is sent into the drying tower (1) through the air supply pipe (31) to dry the grain, so as to achieve continuous and uniform drying of the grain.

2. The safe, heating, and continuously circulating grain drying equipment according to claim 1, characterized in that, The anti-caking mechanism (7) includes a rotating rod (71) rotatably connected to the middle of the storage cylinder (64). The top of the rotating rod (71) is provided with a support frame (72) fixedly connected to the storage cylinder (64). The upper and lower sides of the support frame (72) are provided with limiting plates (73) fixedly connected to the rotating rod (71). The bottom of the rotating rod (71) is provided with a limiting seat (74) fixedly connected to the support frame (72). The outer circular surface of the rotating rod (71) is fixedly connected with evenly distributed support rods (75). The bottom of the rotating rod (71) passes through the storage cylinder (64) and is fixedly connected with a gear (76). The driving mechanism (14) drives the rotating rod (71) and support rods (75) to rotate by driving the gear (76) so as to disperse the grain.

3. The safe, heating, and continuously circulating grain drying equipment according to claim 2, characterized in that, The drying tower (1) is provided with an adjustment component for adjusting the position of the storage cylinder (64) at the middle of the top. The adjustment component includes a second servo motor (61) fixedly installed at the middle of the top of the drying tower (1). The output end of the second servo motor (61) is fixedly connected to a first drive rod (62). The first drive rod (62) passes through the drying tower (1) and is fixedly connected to several connecting plates (63). The connecting plates (63) are fixedly connected to the storage cylinder (64). The top of the storage cylinder (64) is open, and a discharge pipe (65) is fixedly connected to one side of the bottom. An electric control valve is provided inside the discharge pipe (65).

4. The safe, heating, and continuously circulating grain drying equipment according to claim 3, characterized in that, The drive mechanism (14) includes a third servo motor (141) fixedly connected to the middle of the bottom of the drying tower (1). The output end of the third servo motor (141) is fixedly connected to a second drive rod (142). The top end of the second drive rod (142) is fixedly connected to a gear ring (143). The gear ring (143) meshes with the gear (76).

5. A safe, heating, and continuously circulating grain drying device according to claim 4, characterized in that, A collection bucket (12) is fixedly connected to the bottom of the drying tower (1). A conical gas collecting hopper (13) is fixedly connected to the middle of the inside of the collection bucket (12). An annular frame (9) fixedly connected to the drying tower (1) is provided directly above the conical gas collecting hopper (13). A dispersing hopper (10) is fixedly connected to the middle of the upper surface of the annular frame (9). A dustproof mesh plate (11) is fixedly connected between the dispersing hopper (10) and the conical gas collecting hopper (13).

6. A safe, heating, and continuously circulating grain drying device according to claim 5, characterized in that, The dispersing hopper (10) is provided with a conical hopper (8) for gathering grains directly above it. The outer circular surface of the bottom end of the conical hopper (8) is provided with a triangular bracket (81) fixedly connected to the drying tower (1). The inner bottom of the dispersing hopper (10) is provided with a fan (15) fixedly connected to the second drive rod (142). The drive mechanism (14) also includes a connecting sleeve (144) fixedly connected to the middle of the outer circular surface of the second drive rod (142). A connecting rod (145) is fixedly connected to one side of the connecting sleeve (144), and a cleaning plate (146) is fixedly connected through the connecting rod (145).

7. A safe, heating, and continuously circulating grain drying device according to claim 6, characterized in that, The grain feeding mechanism (4) includes a dustproof material cylinder (41) located on the left side of the drying tower (1). A feeding box (42) is fixedly connected to one side of the bottom of the dustproof material cylinder (41). A feeding plate (43) is rotatably connected inside the dustproof material cylinder (41). A receiving frame (45) that works with the feeding plate (43) is fixedly connected to the top of the dustproof material cylinder (41) near the drying tower (1). A windbreak frame (44) that is fixedly connected to the dustproof material cylinder (41) is provided on the outside of the receiving frame (45). A feeding cylinder (46) that is fixedly connected to the drying tower (1) is provided at the bottom of the receiving frame (45). A conveying cover (47) is fixedly connected to one side of the bottom of the feeding cylinder (46). An impeller (48) is rotatably connected inside the feeding cylinder (46). A first servo motor (49) for driving the impeller (48) is fixedly connected to one end face of the feeding cylinder (46).

8. A safe, heating, and continuously circulating grain drying device according to claim 7, characterized in that, A recovery pump (16) is fixedly installed on one side of the bottom of the dustproof material cylinder (41). One end of the recovery pump (16) is fixedly connected to a second recovery pipe (162), and the other end is fixedly connected to a first recovery pipe (161). One end of the first recovery pipe (161) passes through the drying tower (1) and is fixedly connected to the collection bucket (12). A conveying pipe (17) for conveying dried grains is fixedly connected to one side of the bottom of the collection bucket (12).

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