A grain distribution device with a central slow-down section

Abstract

The present application belongs to the technical field of filling devices in storage devices, and in particular relates to a grain distribution device with a central slow-down section, comprising a central slow-down section, a distributor central tube arranged above the central slow-down section, a feed pipe arranged above the distributor central tube, a radial distributor arranged on the periphery of the distributor central tube, a plurality of inclined chutes arranged on the radial distributor, a grain outlet hole provided on the central slow-down section, an overflow buffer and a guide buffer provided inside the central slow-down section, the overflow buffer being arranged above the guide buffer, in the central slow-down section, under the action of the overflow buffer and the guide buffer, the grain forms an irregular bouncing motion, and the descending speed is greatly reduced, so as to achieve the purpose of preventing grading and reducing crushing, the outflowing grain forms a cone, and under the action of the radial distributor, the grain in the silo is filled into a uniform plane, reducing or avoiding the silo closing operation.

Description

Technical Field

[0001] The present application belongs to the technical field of filling devices in storage devices, and in particular relates to a grain distribution device with a central slow-down section. Background Art

[0002] In the field of storage devices, silos are a common grain storage device. Silos are relatively high, generally more than 3 meters, and some silos can reach more than 10 meters. Grain enters the silo from the upper end. If the grain falls directly, the high-speed movement of the grain will increase the degree of grain breakage. In addition, in the process of automatic free fall, the grain will form natural stratification and grading due to the size, weight, shape, impurities, etc. of the particles, which will lead to automatic grading of the grain. Automatic grading of grain will affect the effective and uniform ventilation of the grain, causing the grain to heat up, mold, germinate, deteriorate, etc. during the storage period, seriously affecting the quality of the grain and not conducive to safe storage of grain.

[0003] As the grain falls, the top surface of the grain will be unevenly distributed and will need to be leveled. If too much grain is piled up in one location or other, the subsequent leveling work will be more difficult. Summary of the Invention

[0004] In order to solve the above problems, the present application provides a grain distribution device with a central slow-down section.

[0005] The first purpose of the present application is to provide a grain distribution device with a central slow-down section. In the central slow-down section, under the action of the overflow buffer and the guide buffer, the grain forms an irregular bouncing motion, and the descending speed is greatly reduced. Grains of various grades will be mixed more evenly, achieving the purpose of preventing grading and reducing breakage, and gradually flow out from the grain outlet hole of the central slow-down section to form a conical grain arrangement. Under the action of the radial distributor, the grain in the silo is filled into a uniform plane, reducing or avoiding the silo closing operation.

[0006] To achieve the first purpose of this application, the technical solution of this application is:

[0007] A grain distributing device with a central slow-down section is arranged in a silo, comprising a central slow-down section, a ventilation tube is arranged on the periphery of the central slow-down section, a distributor central tube is arranged above the central slow-down section, a feed pipe is arranged above the central tube of the distributor, a radial distributor is arranged on the periphery of the central tube of the distributor, a plurality of inclined chutes are arranged on the radial distributor, a grain outlet is arranged on the central slow-down section, an overflow buffer and a diversion buffer are arranged inside the central slow-down section, the overflow buffer is arranged above the diversion buffer, and grain enters the distributing device from the feed pipe. After passing through the center tube of the distributor, the grain enters the center slow-down section. Under the action of the overflow buffer and the guide buffer, the grain forms an irregular bouncing motion and the descending speed is greatly reduced. The grains of various grades will be mixed more evenly, achieving the purpose of preventing grading and reducing crushing. The grains gradually flow out from the grain outlet hole of the center slow-down section to form a conical grain arrangement. After the grain fills the center slow-down section, the grain accumulates in the center tube of the distributor and flows out from the chute, gradually filling the grain in the silo into a plane. Then the discharge pipe of the chute is fully opened, so that the grain is evenly arranged in the silo.

[0008] Furthermore, the central slow-down section includes a grain-discharging section and a heat-insulating section arranged at the upper end of the grain-discharging section. The grain-discharging section includes four sections: the bottom grain-discharging section, the lower grain-discharging section, the middle grain-discharging section, and the upper grain-discharging section. The heat-insulating section includes three sections: the lower heat-insulating section, the middle heat-insulating section, and the upper heat-insulating section. At least one overflow buffer and at least one guide buffer are provided in the lower grain-discharging section, the middle grain-discharging section, the upper grain-discharging section, the lower heat-insulating section, and the middle heat-insulating section. Grain-discharging holes are provided on the lower grain-discharging section, the middle grain-discharging section, the upper grain-discharging section, and the middle heat-insulating section. The grain-discharging holes are arranged above the overflow buffer. The grain-discharging hole is provided on the bottom grain-discharging section. Some sections of the present application have grain-discharging holes, so that the ungraded and slow-downed grain in the central slow-down section slowly flows out of the grain-discharging hole and forms a conical arrangement, and reduces the falling height of the grain flowing out of the grain-discharging hole, and reduces the degree of crushing and grading of the grain flowing out of the grain-discharging hole.

[0009] Furthermore, the overflow buffer includes a central buffer, which is a bucket-shaped structure. An overflow pipe is provided on the periphery of the central buffer, and the overflow pipe is connected to the internal space of the central buffer.

[0010] Furthermore, the diversion buffer includes a forward buffer bin and a reverse buffer bin, the forward buffer bin is an inverted bucket-shaped structure, the reverse buffer bin is a bucket-shaped structure, the reverse buffer bin is arranged at the upper end of the forward buffer bin and the lower end of the reverse buffer bin is inserted into the upper end of the forward buffer bin, and the side wall of the forward buffer bin is a perforated plate.

[0011] Furthermore, the central tube of the distributor includes an overflow distribution hopper, the inner diameter of the overflow distribution hopper is larger than the inner diameter of the feed pipe, a cone is provided below the overflow distribution hopper, the cone is arranged at the upper end of the central slow-down section, a chute mounting plate is provided on the outer periphery of the overflow distribution hopper, the chute of the radial distributor is provided on the chute mounting plate, and an overflow hole is opened on the outer periphery of the overflow distribution hopper, and the overflow hole is arranged above the chute mounting plate.

[0012] Furthermore, the chute includes a front end chute connected to the central tube of the distributor, a front hook chute is provided at the end of the front end chute, a middle chute is provided at the end of the front hook chute, a rear end chute is provided at the end of the middle chute, and a discharge pipe is provided on the front end chute, the middle chute and the rear end chute, and a discharge control component is provided on the discharge pipe.

[0013] Furthermore, a lifting assembly is provided on the central tube of the distributor, and the end of the lifting assembly is connected to the chute.

[0014] Furthermore, the central tube of the distributor is rotationally connected to the feed pipe, or the feed pipe is rotationally matched with the hopper, and elastic telescopic reset components are provided between the front chute, the rear chute and the middle chute.

[0015] Furthermore, a feeder is provided below the central tube of the feeder, and a pneumatic gate is provided at the lower end of the feeder.

[0016] Furthermore, an upper air box is provided at the upper end of the central slow-down section, and a lower air box is provided at the lower end of the central slow-down section. The upper air box and the lower air box are connected to the ventilation duct, and the upper air box is connected to the air inlet fan through the air inlet pipe, or the upper air box is connected to the central fan through the ventilation pipe, and the upper air box is connected to the circulating fumigator through the fumigation pipe.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] In the present application, the grain enters the center tube of the distributor from the feed pipe, and enters the center slow-down section from the center tube of the distributor. This process is collected and decelerated by structures such as the collecting bucket, cone cage, and feeder, so that the grain enters the center slow-down section at a slower descending speed. In the center slow-down section, under the action of the overflow buffer and the guide buffer, the grain forms an irregular bouncing motion, and the descending speed is greatly reduced. Grains of various grades will be mixed more evenly, achieving the purpose of preventing grading and reducing crushing, and gradually flow out from the grain outlet hole of the center slow-down section, forming a conical grain arrangement, and under the action of the radial distributor, the grain at the top of the silo is made more uniform and flat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of this application, are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0020] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the present application;

[0021] Figure 2 This is a schematic diagram of the overall structure of the second embodiment of the present application;

[0022] Figure 3 This is a schematic diagram of the overall structure of the third embodiment of the present application;

[0023] Figure 4 This is a schematic diagram of the grain distribution of this application, where the dotted line represents the shape of the grain stack;

[0024] Figure 5 This is a schematic diagram of the top view structure of this application;

[0025] Figure 6 This is a schematic diagram of the overall structure of an embodiment of the radiation distributor of the present application;

[0026] Figure 7 This is a schematic diagram of the overall structure of an embodiment of the material distribution pipe of the present application;

[0027] Figure 8 for Figure 2 Schematic diagram of the structure of the enlarged view of the A area in the middle;

[0028] Figure 9 This is a schematic diagram of the overall structure of the feeder of this application;

[0029] Figure 10 This is a schematic diagram of the overall structure of an embodiment of the central tube of the distributor of the present application;

[0030] Figure 11 for Figure 10 A schematic diagram of a top view structure of FIG.

[0031] Figure 12 This is a schematic diagram of the overall structure of the upper insulation section of this application.

[0032] Figure 13 This is a schematic diagram of the overall structure of an implementation scheme of the interior of the descent section of the present application;

[0033] Figure 14 This is a schematic diagram of the overall structure of an implementation scheme of the bottom grain discharging section of this application;

[0034] Figure 15 A schematic top view of an embodiment of the overflow buffer of the present application;

[0035] Figure 16 for Figure 15 Schematic diagram of the structure cut along section B;

[0036] Figure 17 This is a structural diagram of the diversion buffer.

[0037] In the picture:

[0038] 1. Bottom grain discharge section, 2. Lower grain discharge section, 3. Middle grain discharge section, 4. Upper grain discharge section, 5. Lower insulation section, 6. Middle insulation section, 7. Upper insulation section, 8. Upper collecting bellows, 9. Cone, 10. Overflow distribution hopper, 11. Front chute, 12. Front hook chute, 13. Middle chute, 14. Rear hook chute, 15. Rear chute, 16. Lifting ear, 17. Lifting chain, 18. Fixed bracket, 19. Collecting hopper, 20. Air inlet fan, 21. Discharge pipe, 22. Overflow buffer, 23. Diversion buffer, 24. Grain discharge hole, 25. Center buffer, 26. Reinforcement plate, 27. Overflow long pipe, 28. Reverse buffer bin, 29. Forward buffer bin, 30. Orifice plate, 31. Lower air box, 32. Ventilation duct, 33. Circulation fumigator, 34. Central fan, 35. Lifting assembly, 36. Valley cooling return air outlet, 37. Discharge control component, 38. Elastic telescopic reset component, 39. Discharger, 40. Inspection hole, 41. Collection bin, 42. Overflow short trough, 43. Upper overflow port, 44. Pneumatic gate, 45. Inclined air inlet pipe, 46. Impact ball, 47. Sealing bin, 48. Impact plate, 49. Ash cleaning port. DETAILED DESCRIPTION

[0039] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0040] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0041] In the present application, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are merely relational words determined for the convenience of describing the structural relationships of the various parts or elements of the present application, and do not specifically refer to any part or element in the present application, and should not be understood as limitations on the present application.

[0042] Example 1

[0043] This embodiment is a grain spreading device with a central slow-down section, which is arranged inside a silo. For example, the silo is a shallow circular silo for storing grain. Therefore, the grain spreading device of this embodiment needs to evenly distribute the grain and achieve the purpose of preventing grading and reducing breakage.

[0044] In this embodiment, the grain is fed by an elevator or a spiral feeding tube. The feed amount of grain first increases suddenly, and the impact on the structure of the central buffer section keeps changing. As the feed amount stabilizes, the impact of the grain on the structure of the central buffer section also stabilizes. At the end of the feeding, the amount of grain in the elevator or the spiral feeding tube decreases, and the feed amount of grain also keeps decreasing, and the impact on the structure of the central buffer section keeps changing. Therefore, in addition to coping with the changing feed impact, the structure of this embodiment also needs to focus on coping with the impact of the stabilized grain feed on the overall structure.

[0045] like Figures 1-4 As shown, the silo of this embodiment includes a silo shell and a silo top cover, and the grain distribution device of this embodiment includes a feed end, the lower end of the feed end is equipped with a central slow-down section, the interior of the feed end is equipped with a distributor center tube, and a plurality of chutes are installed on the distributor center tube. The above structure forms the basic structure of the grain distributor of this embodiment.

[0046] The feed end of this embodiment includes a feed pipe passing through the top cover of the silo, a rainproof cap is installed on the upper end of the feed pipe, and a collecting bucket 19 is provided on the feed pipe so that the grain entering the silo can be collected for the first time. The lower end of the feed pipe is provided with a distributor center pipe, and the central slow-down section is arranged at the lower end of the distributor center pipe. A fixed bracket 18 is installed on the periphery of the distributor center pipe. As an implementation scheme, the fixed bracket 18 is fixed on the top cover of the silo, and the distributor center pipe includes an overflow distribution hopper 10. An overflow hole is provided on the side of the overflow distribution hopper 10, and the angle between the overflow hole and the horizontal plane is 38°-45°. A chute mounting plate is installed on the side of the overflow distribution hopper 10, and the chute mounting plate is arranged at the lower end of the overflow hole. The inner diameter of the overflow distribution hopper 10 is larger than the inner diameter of the feed pipe, such as Figure 10-11 As shown, a cone 9 is arranged at the lower end of the overflow distribution hopper 10, so that the size of the lower end of the overflow distribution hopper 10 is reduced, so as to achieve the purpose of concentrating the grain into the central slow-descent section. In addition, the cone 9 and the overflow distribution hopper 10 can also be arranged separately.

[0047] The chute in this embodiment includes two options: a chute pipe and a chute. If the central tube of the distributor has an overflow hole, the chute is preferably a chute.

[0048] As one of the core structures, the central descending section of this embodiment includes a bottom grain-discharging section 1, the upper end of the bottom grain-discharging section 1 is installed with a lower grain-discharging section 2, the upper end of the lower grain-discharging section 2 is installed with a middle grain-discharging section 3, the upper end of the middle grain-discharging section 3 is installed with an upper grain-discharging section 4, the upper end of the upper grain-discharging section 4 is installed with a lower insulation section 5, the upper end of the lower insulation section 5 is installed with a middle insulation section 6, and the upper end of the middle insulation section 6 is installed with an upper insulation section 7. The bottom grain-discharging section 1 of this embodiment has a grain-discharging hole 24, the lower end of the bottom grain-discharging section 1 is installed with a lower wind box 31, and the upper end of the upper insulation section 7 is installed with an upper wind box 8. Specifically, as shown in FIG. Figure 13 As shown, the height dimensions of the lower end grain outlet section 2 and the middle end grain outlet section 3 will be adjusted according to demand, and the lower end grain outlet section 2 and the middle end grain outlet section 3 both include a central cylinder, and the upper and lower ends of the central cylinder are both equipped with flanges, and the flanges are connected to the central cylinder through flange reinforcement ribs, and a ventilation tube 32 is arranged on the periphery of the central cylinder, and an inner ring reinforcement belt is installed in the middle of the inner part of the central cylinder, and the inner ring reinforcement belt is welded to the central cylinder, and an overflow buffer 22 and a guide buffer 23 are installed inside the central cylinder, and the overflow buffer 22 is arranged above the guide buffer 23, and a grain outlet hole 24 is opened on the periphery of the central cylinder, and the overflow buffer 22 and the guide buffer 23 are arranged below the inner ring reinforcement belt, and the grain outlet hole 24 is arranged inside. Above the ring reinforcement belt, specifically, the overflow buffer 22 includes a central buffer 25 located in the middle, the central buffer 25 is in the shape of an inverted cone, the outlet diameter of the lower end of the central buffer 25 is small, and the diameter of the upper end is large, the inner wall of the central buffer 25 is welded with a reinforcing plate 26, and the outer periphery of the central buffer 25 is installed with an overflow long tube 27 connected to the interior of the central buffer 25. For example, each central buffer 25 of this embodiment has three overflow long tubes 27, and the connection port of the overflow long tube 27 and the central buffer 25 is arranged above the outlet of the central buffer 25. The end of the overflow long tube 27 is provided with an opening. As an excellent implementation scheme, the overflow long tube 27 is arranged at an angle of 10° to the horizontal plane. Figure 16The angle is represented by α, which ensures that the grain flows out of the overflow long tube 27 at a slow speed. The guide buffer 23 of this embodiment includes an inverted buffer bin 28 and a forward buffer bin 29 arranged at the lower end of the inverted buffer bin 28. The inverted buffer bin 28 is an inverted conical bin body, and the forward buffer bin 29 is a conical bin body. The lower end of the inverted buffer bin 28 is arranged inside the forward buffer bin 29. The side wall of the forward buffer bin 29 is a perforated plate 30 with an opening rate of 28%-35%. For example, the opening rate of this embodiment can be 30%. The grain falling from the outlet of the overflow long tube 27 falls into the inverted buffer bin 28 and continues to roll along the inner wall of the inverted buffer bin 28. And enter the forward buffer bin 29, part of the rolled grain leaks out from the holes of the orifice plate 30, another part continues to fall after contacting the inner wall of the forward buffer bin 29, and a small part flows out directly from the lower end opening of the forward buffer bin 29. In addition, when the air flow is input into the interior of the ventilator, the air flow will also pass through the orifice plate of the forward buffer bin 29, so that the air flow is mixed with the grain, and the grain bounces downward, while the air flow flows upward along the holes on the orifice plate in the form of small air flows, thereby reducing the bouncing speed and the falling speed of the grain, and making the grain more fully mixed, avoiding the classification of the grain due to factors such as weight during the falling process.

[0049] The upper grain discharging section 4 of this embodiment also has an overflow buffer 22 and a flow guide buffer 23 , but does not have a grain discharging port.

[0050] The lower end insulation section 5, the middle end insulation section 6 and the upper end insulation section 7 of this embodiment are all provided with an overflow buffer 22 and a guide buffer 23, and the cylinder body thereof is provided with an insulation plate or an insulation inner wall, and only the middle end insulation section 6 is provided with a grain outlet, and the grain outlet on the middle end insulation section 6 is also connected to a grain outlet branch pipe, so that the grain outlet branch pipe extends outward, so that the grain overflows to a farther distance.

[0051] Specifically, the central slow-down section has a ventilation tube 32. The bottom end of the central slow-down section of this embodiment is connected to the lower air box 31, and the upper end of the central slow-down section is connected to the upper air box 8. Figure 14 As shown, in this embodiment, an inspection hole 40 is arranged on the side of the lowermost end of the bottom grain discharge section 1, and the inspection hole 40 is connected to the ventilation duct 32, and an inspection door blind plate is installed on the inspection hole 40, and the inspection door blind plate is installed on the flange of the inspection hole 40 by bolts. A grain discharge hole 24 is opened on the bottom grain discharge section 1, and the grain discharge hole 24 is arranged at the middle and lower ends of the central cylinder of the bottom grain discharge section 1, so that the grain starts to be discharged from the bottom grain discharge section 1.

[0052] As an implementation scheme, the upper air box 8 is arranged between the cone 9 and the central slow-down section, and an air intake fan 20 is installed on the top cover of the silo. The air intake fan 20 is connected to the upper air box 8 through an air inlet pipe. The upper air box 8 is connected to the ventilation duct 32 on the central slow-down section and is connected to the lower air box 31 to achieve a ventilation effect.

[0053] As another implementation scheme, the upper air box 8 is arranged between the cone 9 and the central slow-down section, and the central fan 34 and the circulating fumigator 33 are installed on the top cover of the silo. The central fan 34 is connected to the upper air box 8 through a ventilation pipe, and the circulating fumigator 33 is connected to the upper air box 8 through a fumigation pipe, and the central fan 34 and the circulating fumigator 33 are arranged relatively on the top cover of the silo.

[0054] In this embodiment, a grain cooling return air outlet 36 can be opened on the upper wind box 8. An elbow is installed on the grain cooling return air outlet 36, and the opening of the elbow is arranged to face downward. The grain cooling return air outlet 36 can be connected to the ventilation equipment, and the air at the upper end of the silo is guided to flow outside the silo through the grain cooling return air outlet 36 to ensure the circulation of air in the silo and the regulation of temperature and humidity. In addition, the grain cooling return air outlet 36 can also be connected to the automatic control system, and the temperature and humidity conditions in the silo are detected by sensors, and the switch status of the return air outlet is automatically adjusted to ensure that the grain storage environment is always in the best condition.

[0055] In this embodiment, the outlet at the lower end of the central buffer 25 is smaller, and its inner diameter is one-sixth to one-tenth of the inner diameter of the inlet at the upper end. For example, the diameter of the outlet at the lower end of the central buffer 25 of this embodiment is 50 mm, and the diameter of the inlet at the upper end is 400 mm. The inner diameter of the overflow long tube 27 is slightly smaller than the diameter of the outlet at the lower end of the central buffer 25. The angle between the inner wall of the central buffer 25 and the horizontal plane is 30°-33°, and the angle between the inner wall of the inverted buffer bin 28 and the horizontal plane is 35°-40°. The combination of the overflow buffer 22 and the guide buffer 23 realizes the slow descent and anti-grading of grain.

[0056] As a specific embodiment, Figure 12As shown, the upper end insulation section 7 is the first section of the structure in contact with the grain, and plays a key role in slowing down. Therefore, the upper end insulation section 7 of this embodiment has a more special slowing down structure. Specifically, there is no grain outlet on the cylinder of the upper end insulation section 7. A material collection bin 41, an inverted buffer bin 28 and a forward buffer bin 29 are installed in the cylinder of the upper end insulation section 7. The inverted buffer bin 28 has an inverted cone structure, and the forward buffer bin 29 has an upright cone structure. More specifically, the material collection bin 41 has an inverted cone structure. The material collection bin 41 is a type of central buffer 25, but the inclination angle of the material collection bin 41 is larger, and the inclination angle is between 40° and 50°, which reduces the existence time of grain in the material collection bin 41. In addition, the upper end opening size of the material collection bin 41 is larger than the lower end size of the cone 9, so that the material collection bin 41 can fully carry the grain entering the central buffer. For the grain being harvested, a hinged overflow short trough 42 is installed on the outer periphery of the bottom end of the material collection bin 41. The lower end of the overflow short trough 42 is hingedly connected to the material collection bin 41 at the end near the outer periphery of the material collection bin 41, and an arc sleeve is installed on the outer periphery of the overflow short trough 42. An arc guide rod is installed on the outer periphery of the material collection bin 41. The arc guide rod is passed through the arc sleeve, and a buffer spring is installed on the arc guide rod. The buffer spring is arranged on the outer periphery of the arc guide rod between the material collection bin 41 and the overflow short trough 42. In addition, an overflow port is also installed on the outer periphery of the upper end of the material collection bin 41, and the outlet of the overflow port faces the overflow short trough 42. As a large amount of grain enters the material collection bin 41, the grain not only flows out from the lower end of the material collection bin 41, but also flows out from the overflow short trough 42 and the overflow port, and mainly flows out from the overflow short trough 42 and the overflow port, while the grain flowing out of the overflow port directly enters the overflow short trough 42.

[0057] In this embodiment, a forward buffer bin 29 is arranged at the lower end of the material collection bin 41, and an inverted buffer bin 28 is arranged at the lower end of the forward buffer bin 29. The upper end of the forward buffer bin 29 has an opening, and the size of the opening is much smaller than the size of the opening at the lower end of the material collection bin 41. The upper end of the side surface of the forward buffer bin 29 does not have a orifice plate 30. Holes are opened in the middle and lower ends of the side surface of the forward buffer bin 29 to form an orifice plate 30. The inclination angle of the side wall of the forward buffer bin 29 is 25°-30°, and the forward buffer bin 29 does not contact the inner wall of the upper end insulation section 7, and the upper end of the inverted buffer bin contacts the inner wall of the upper end insulation section 7.

[0058] In addition, if Figure 5-Figure 6As shown, the core structure of this embodiment also includes a radial distributor. For example, the overflow distribution hopper 10 of this embodiment includes 6 chute mounting plates, and a chute is installed on each chute mounting plate. As a specific structure of the chute, the chute of this embodiment includes a front end chute 11, a front hook chute 12 is installed at the end of the front end chute 11, a middle chute 13 is installed at the end of the front hook chute 12, a rear hook chute 14 is installed at the end of the middle chute 13, and a rear end chute 15 is installed at the end of the rear hook chute 14. Hanging plates are installed on the front hook chute 12 and the rear hook chute 14, a lifting ear 16 is installed on the silo, and a lifting chain 17 is installed between the lifting ear 16 and the hanging plate. A discharge pipe 21 is installed on the front hook chute 12 and the rear hook chute 14, and an opening can be opened at the end of the rear end chute 15 for discharging.

[0059] As another implementation scheme of the chute, the chute of this embodiment includes a front chute 11, a front hook chute 12, a middle chute 13 and a rear end chute 15. A hanging plate is installed on the front hook chute 12, a lifting ear 16 is installed on the silo, and a lifting chain 17 is installed between the lifting ear 16 and the hanging plate. A discharge pipe 21 is installed on the middle chute 13. In this embodiment, a discharge control assembly 37 is installed on the middle chute 13. The discharge control assembly 37 of this embodiment includes a driving cylinder, and the output shaft of the driving cylinder drives the rocker arm to drive the baffle in the discharge pipe 21 to move, thereby opening or closing the baffle to control the precise flow of grain from the discharge pipe 21.

[0060] like Figure 3 、 Figure 7 As shown, as another embodiment of the chute, the chute of this embodiment includes a front chute 11, a front hook chute 12, a middle chute 13 and a rear end chute 15, a hanging plate is installed on the front hook chute 12, a lifting ear 16 is installed on the silo, and a lifting chain 17 is installed between the lifting ear 16 and the hanging plate. Specifically, a circular track is installed on the silo, and the circular track is arranged at the lower end of the silo top cover, and a roller is installed on the lifting ear 16, and the roller is arranged in the circular track. The feed pipe is fixedly connected to the central tube of the distributor, and the central tube of the distributor and the central slow-down section are rotatable, so that the central tube of the distributor can rotate, and the feed pipe and the silo top cover are rotatable. As a specific implementation scheme, the feed pipe adopts a pipe structure with a thicker wall, the silo top cover adopts a frame-type reinforcement structure, and a mechanical seal is installed, so that the feed pipe can be rotatable and sealed. In this implementation scheme, the upper air box 8 is arranged upward, and a ventilation tube 32 is arranged on the central tube of the distributor or an independent ventilation tube 32 is arranged on the outside of the central tube of the distributor, so that the ventilation pipe and the fumigation pipe are arranged above the chute to avoid interference between the ventilation pipe and the fumigation pipe and the chute, so that the chute can rotate smoothly. As a corresponding matching structure, the fixed bracket 18 is installed on the silo top cover and is rotatably matched with the silo top cover.

[0061] As a matching structure, in this embodiment, a lifting assembly 35 is installed on the central tube of the distributor, and the lifting assembly 35 drives the chute to move, so that the angle between the chute and the horizontal plane changes, thereby changing the discharge position of the grain.

[0062] As another matching structure, in this embodiment, a connecting structure is installed at the lower end of the feed pipe, and a lifting assembly 35 is installed on the connecting structure. The lifting assembly 35 drives the chute to move, so that the angle between the chute and the horizontal plane changes, and the lifting assembly 35 can rotate with the feed pipe.

[0063] As the specific structure of the lifting assembly 35, the lifting assembly 35 is a driving cylinder structure, and the end of the driving cylinder without a push rod is hingedly mounted on the central tube of the distributor or hingedly mounted on the connecting structure at the lower end of the feed pipe, and the end of the driving cylinder with a push rod is hingedly connected to the chute, for example, the connection position is located at the front chute 11, the front hook chute 12 or the middle chute 13.

[0064] This embodiment is equipped with a pneumatic gate 44. By opening the pneumatic gate 44, the grain enters the central slow-down section. By closing the pneumatic gate 44, the grain gathers and overflows from the overflow hopper 10. As an implementation scheme, the pneumatic gate 44 can be arranged above the cone 9.

[0065] As a matching structure, since the grain in this embodiment descends slowly and the feeding pipe is always feeding grain, the grain gathers above the central descending section and is easy to block the central pipe of the distributor. Figure 8 As shown, in this embodiment, a feeder 39 is installed at the upper end of the pneumatic gate 44. The feeder 39 of this embodiment includes an inverted conical hopper with holes provided on the hopper so that the interior of the hopper is connected to the silo. The lifting assembly 35 and the chute are arranged above the feeder 39. The feeder 39 prevents grain from being blocked above the silo, allowing the grain to smoothly enter the central slow-down section. As a further implementation scheme, Figure 9As shown, the feeder 39 of this embodiment has an inverted conical hopper, which is surrounded by 6 triangular plates or 6 trapezoidal plates to form the shape of a regular hexagonal pyramid or a prism with edges. Holes are provided on the hopper, and a sealing bin 47 is arranged on the periphery of the hopper. The sealing bin 47 is sealed and connected to the surrounding structure to form a sealed space. An inclined air inlet pipe 45 is provided on the sealing bin 47, and the inclined air inlet pipe 45 is connected to the air inlet pipe, ventilation pipe and other structures through a connecting pipe. At least one impact ball 46 is placed inside the sealing bin 47. As a matching structure, an impact plate 48 is installed on the periphery of the hopper and fixed to the hopper by bolts. Holes are provided at the same position of the impact plate 48. The airflow enters from the inclined air inlet pipe 45 and drives the impact ball 46 to circulate in one direction. Due to the presence of the edges, the impact ball 46 constantly collides with the impact plate 48, thereby causing the hopper to vibrate slightly. , to avoid the occurrence of material blockage in the material dispersing device 39, the air flow will also be introduced into the hopper, and the air flow slowed down by the holes will drive the grain in the hopper to move, but will not over-accelerate the movement of the grain, thereby enhancing the material dispersing effect. In addition, the grain will also carry some dust. In this embodiment, air can be introduced through the inclined air inlet pipe 45 to introduce air flow into the grain, reducing the sedimentation of dust at the bottom of the grain. When the material dispersing device 39 is not working, some dust will fall into the sealed bin 47. In this embodiment, the pneumatic gate 44 can be closed and the inclined air inlet pipe 45 can be used to introduce air, so that the dust remaining in the hopper flows out from the chute and other structures, and the dust in the sealed bin 47 flows out from the ash cleaning port 49 opened in the sealed bin 47. Normally, a blind plate is installed on the ash cleaning port 49, and the sealing gasket used for sealing is an EPDM sealing gasket. Compared with the structure of a rotary cylinder plus an eccentric wheel, the vibration amplitude of this embodiment is larger and more irregular, and the material dispersing effect is better.

[0066] As a matching structure, the change in the discharge position of grain driven by the lifting assembly 35 alone is relatively small. Therefore, as a change in the discharge position of grain in a larger range, the chute of this embodiment can be deformed, that is, the length of the chute can be changed. This embodiment installs an elastic telescopic reset component 38 between the middle chute 13 and the front hook chute 12. Specifically, the internal size of the middle chute 13 is slightly larger than the external size of the front hook chute 12, so that the middle chute 13 and the front hook chute 12 partially overlap. A U-shaped wing plate is installed on the outside of the middle chute 13, and a U-shaped wing plate is also welded at the end of the front hook chute 12. A plurality of guide rods are installed between the two U-shaped wing plates. The guide rod is a bare rod. The guide rod is inserted into the U-shaped wing plate and is clearance-fitted. Springs are installed on the two U-shaped wing plates. The springs are arranged on the outside of the guide rods. One end of the spring is fixedly connected to one U-shaped wing plate, and the other end of the spring is fixed to the other U-shaped wing plate. The cam 14 is fixedly connected to the rear end chute 15, and an elastic retractable reset assembly 38 is installed between the middle chute 13 and the rear end chute 15 in this embodiment. Specifically, the inner dimension of the middle chute 13 is slightly larger than the outer dimension of the rear end chute 15, so that the middle chute 13 and the rear end chute 15 partially overlap. A U-shaped wing plate is installed on the outer side of the middle chute 13, and a U-shaped wing plate is also welded at the front end of the rear end chute 15. A plurality of guide rods are installed between the two U-shaped wing plates. The guide rod is a light rod, which is inserted into the U-shaped wing plate and is clearance-fitted. Springs are installed on the two U-shaped wing plates. The springs are arranged on the outer side of the guide rods. One end of the spring is fixedly connected to one U-shaped wing plate, and the other end of the spring is fixedly connected to the other U-shaped wing plate. A discharge control assembly 37 is installed at the end of the rear end chute 15. This embodiment also requires at least two discharge pipes 21 to be installed at the lower end of the middle chute 13, and a discharge control assembly 37 is installed on the discharge pipe 21.

[0067] After the grain in the silo is gradually filled, the grain can no longer flow out from the grain outlet hole 24 of the center slow-down section. At this time, the grain accumulates in the silo and the top surface of the grain forms a cone. In this embodiment, the pneumatic gate 44 is needed to close the grain discharge of the center slow-down section, so that the grain gradually accumulates in the center tube of the distributor. The grain is mainly distributed to the surrounding along the chute. The discharge control component 37 on the rear chute 15 is closed, and the discharge control component 37 on the middle chute 13 is closed, so that the grain gradually gathers at the rear chute 15. The weight of the grain in the rear chute 15 gradually increases, and the rear chute 15 and the middle chute are separated. The chute 13 gradually separates, and the elastic telescopic reset component 38 between the rear chute 15 and the middle chute 13 is expanded. At the same time, as the grain is accumulated in the rear chute 15, the grain enters the middle chute 13, and the weight of the grain in the rear chute 15 and the middle chute 13 increases, causing the middle chute 13 to gradually separate from the front chute 11. The elastic telescopic reset component 38 between the front hook chute 12 and the middle chute 13 is contracted. After the front chute 11 and the rear chute 15 are separated from the middle chute 13, the discharge control component 37 on the middle chute 13 can be started, so that the grain in the middle chute 13 is discharged from the chute. As the grain in the middle chute 13 flows out, the total weight of the grain in the rear chute 15 and the middle chute 13 gradually decreases, and the elastic telescopic reset component 38 between the middle chute 13 and the front hook chute 12 contracts. Similarly, as the discharge control component 37 on the middle chute 13 is fully opened, the discharge control component 37 on the rear chute 15 is opened, and the grain on the rear chute 15 flows out from the rear chute 15, so that the weight of the grain in the rear chute 15 is reduced, and the elastic telescopic reset component 38 between the rear chute 15 and the middle chute 13 contracts. The above elastic telescopic reset component 38 contracts Or when unfolded, the discharge position on the rear chute 15 and the middle chute 13 can be changed, so that the grain is distributed evenly. In this embodiment, it can also cooperate with a rotating radial distributor. The radial distributor rotates, so that the discharge position on the rear chute 15 and the middle chute 13 is constantly changing, so that the grain is distributed more evenly. In addition, this embodiment fine-tunes the angle of the chute with the lifting assembly 35 to maximize the range of the grain discharge position, so that the grain is horizontally distributed at the top of the silo. This embodiment can avoid operations such as flattening the grain and can realize direct feeding of grain.

[0068] like Figure 4 As shown, the dotted line in the figure represents the distribution of grain in the granary. The grain flows out from the grain outlet 24 and forms a cone arrangement. The grain flows out from the chute and falls on the piled grain at a low height.

[0069] In this embodiment, the discharge control components 37 on different chutes can be controlled to open, so that the weight of the grain in each chute is different and arranged clockwise. The angular positions of different chutes are adjusted by the lifting assembly 35, so that the center of gravity of the radial distributor is constantly changing. When the radial distributor has initial power, the center of gravity of the radial distributor changes, providing power for the rotation of the radial distributor, so that the radial distributor can rotate without power for a period of time.

[0070] As a specific grain feeding process, this embodiment transports the grain to the feed pipe through an elevator or a screw conveyor, and opens the pneumatic gate 44. The grain enters the collecting bucket 19 along the feed pipe. Under the action of the collecting bucket 19, the original falling speed of the grain is reduced. The grain flowing out of the collecting bucket 19 enters the central tube of the distributor, and the original falling speed of the grain is reduced again in the cone cylinder 9 in the central tube of the distributor, and passes through the pneumatic gate 44 to enter the central slow-down section. The grain first reaches the upper insulation section 7 and enters the collection bin 41 in the upper insulation section 7. A small part of the grain in the collection bin 41 flows out from the bottom of the collection bin 41. Most of the grain flows out from the overflow short trough 42, and as the grain feed amount increases to a stable level, part of the grain flows from the upper overflow port 43 to the overflow short trough 42, resulting in an increase in the weight of the grain on the overflow short trough 42. The change in the inclination angle of the overflow short trough 42 allows the grain to reach the forward buffer bin 29 in the upper end insulation bin faster. After the buffering effect of the orifice plate 30 on the forward buffer bin 29, the grain enters the reverse buffer bin 28 in the upper end insulation section 7, so that the grain flows along the inner wall of the reverse buffer bin 28, achieving the purpose of significantly reducing the speed after entering the central slow-down section. The grain enters the middle insulation section, the lower insulation section 5, The upper grain outlet section 4, the middle grain outlet section, the lower grain outlet section 2 and the bottom grain outlet section, in these sections, the grain after deceleration first enters the central buffer 25 on the overflow buffer 22, so that the grain mainly flows out from the overflow long pipe 27 on the overflow buffer 22, and flows into the guide buffer 23, and in the guide buffer 23, flows along the inclined inner wall of the guide buffer bin to the orifice plate 30 of the forward buffer bin 29, so that the speed of the grain is reduced, and the grain finally falls to the bottom grain outlet section, and enters the silo along the grain outlet hole 24 on the bottom grain outlet section, forming a conical arrangement. As the grain in the bottom grain outlet section increases, the grain outlet hole 24 on the bottom grain outlet section increases. The grain holes 24 discharge grain slowly until no more grain is discharged, and the grain gradually accumulates in the lower grain discharge section 2 and flows out from the grain discharge holes 24 of the lower grain discharge section 2. The discharged grain falls on the previous conical grain and expands the grain accumulation range, until the grain discharge holes 24 on the lower grain discharge section 2 discharge grain slowly until no more grain is discharged, and the grain gradually accumulates in the middle grain discharge section, and so on. The grain gradually piles up in the middle insulation section and flows out from the grain discharge holes 24 of the middle insulation section. Due to the influence of the internal structure of the central slow-down section, the grain moves in the central slow-down section with a movement posture similar to a small bounce, and falls into the silo, thereby achieving the purpose of grain anti-grading.

[0071] After the middle grain discharging section stops discharging grain, the pneumatic gate 44 is closed, and the grain gradually gathers in the cone 9 and flows along the chute. The excess grain flows into the chute from the overflow port and flows out from the discharge pipe 21 of the chute. After a certain amount of grain is stored in the silo, the grain feeding is stopped and the silo is leveled. As a better grain distribution scheme, this embodiment controls the discharge of grain in the chute through the discharge control component 37. Relying on the weight of the grain and the elastic telescopic reset component 38, the overall length of the chute is extended or shortened, and the position of the discharge pipe 21 is changed, so as to avoid the formation of multiple small piles of grain in the silo, and instead distribute the grain in a flatter manner. On this basis, in conjunction with the lifting assembly 35, the inclination angle and center of gravity of the chute at different positions are different, thereby assisting the radial distributor to perform rotational motion. In order to better obtain grain layout data, this embodiment uses a sensor to detect the height of the grain, and then adjusts the height, length and other data of the chute at different positions. This scheme can reduce or avoid leveling operations.

[0072] After the grain is laid and stored, air is input into the ventilation duct 32 through the air inlet fan 20 to ensure that the temperature and humidity of the grain storage are appropriate. In addition, this embodiment can also use the central fan 34 and the circulating fumigator 33 to input the required fluid into the silo to achieve the corresponding effect.

[0073] It should be noted that in this embodiment, no electronic equipment, such as motors, is used inside the grain in the silo, and there are no wires or other structures to avoid open flames caused by short circuits or failures of electronic equipment.

[0074] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

[0075] Although the above describes the specific implementation methods of the present application in conjunction with the accompanying drawings, it does not limit the scope of protection of the present application. Technical personnel in the relevant field should understand that on the basis of the technical solution of the present application, various modifications or variations that can be made by technical personnel in this field without creative work are still within the scope of protection of the present application.

Claims

1. A grain distribution device with a central slow-down section, arranged in a silo, characterized in that: It includes a central slow-down section, a ventilation tube is provided on the periphery of the central slow-down section, a distributor central tube is provided above the central slow-down section, a feed pipe is provided above the distributor central tube, a radial distributor is provided on the periphery of the distributor central tube, and a plurality of inclined chutes are provided on the radial distributor; The central slow-down section is provided with a grain outlet hole, and an overflow buffer and a diversion buffer are provided inside the central slow-down section, and the overflow buffer is arranged above the diversion buffer; The chute includes a front chute connected to the central tube of the distributor, a front hook chute is provided at the end of the front chute, a middle chute is provided at the end of the front hook chute, a rear chute is provided at the end of the middle chute, a discharge pipe is provided on the front chute, the middle chute and the rear chute, a discharge control component is provided on the discharge pipe, the central tube of the distributor is rotatably connected to the feed pipe, elastic telescopic reset components are provided between the front chute, the rear chute and the middle chute, and a discharge control component is installed at the end of the rear chute. The weight of the grain in the rear chute gradually increases, so that the rear chute and the middle chute are gradually separated. The weight of the grain in the rear chute and the middle chute increases, so that the middle chute and the front chute are gradually separated. The inner dimension of the middle chute is larger than the outer dimension of the rear end chute, so that the middle chute and the rear end chute partially overlap. A U-shaped wing plate is installed on the outer side of the middle chute, and a U-shaped wing plate is welded to the front end of the rear end chute. A plurality of guide rods are installed between the two U-shaped wing plates. The guide rod is a plain rod and is inserted into the U-shaped wing plates with a clearance fit. Springs are installed on the two U-shaped wing plates. The springs are arranged on the outer sides of the guide rods. One end of the spring is fixedly connected to one U-shaped wing plate, and the other end of the spring is fixedly connected to the other U-shaped wing plate. The central tube of the distributor is provided with a lifting assembly, the end of which is connected to a chute. The lifting assembly adjusts the angle position of different chutes, thereby causing the center of gravity of the radial distributor to change continuously. A spreader is provided below the central tube of the distributor, and a pneumatic gate is provided at the lower end of the spreader. The spreader includes an inverted conical hopper, which is in the shape of a regular hexagonal pyramid or a prism with edges. Holes are provided on the hopper, and a sealed bin is arranged on the periphery of the hopper. An inclined air inlet pipe is provided on the sealed bin, and at least one impact ball is placed inside the sealed bin. The airflow entering from the inclined air inlet pipe causes the impact ball to collide with the hopper, and the airflow is introduced into the interior of the hopper. The airflow decelerated through the holes drives the grain in the hopper to move.

2. The grain distribution device with a central slow-down section according to claim 1, characterized in that: The central slow-down section includes a grain discharging section and a heat-insulating section arranged at the upper end of the grain discharging section. The grain discharging section includes four sections: a bottom grain discharging section, a lower grain discharging section, a middle grain discharging section, and an upper grain discharging section. The heat-insulating section includes three sections: a lower heat-insulating section, a middle heat-insulating section, and an upper heat-insulating section. At least one overflow buffer and at least one diversion buffer are provided in each of the lower grain discharging section, the middle grain discharging section, the upper grain discharging section, the lower heat-insulating section, and the middle heat-insulating section. Grain discharging holes are provided on the lower grain discharging section, the middle grain discharging section, the upper grain discharging section, and the middle heat-insulating section. The grain discharging holes are arranged above the overflow buffer. The bottom grain discharging section is provided with a grain discharging hole.

3. A grain distribution device with a central slow-down section according to claim 1 or 2, characterized in that: The overflow buffer includes a central buffer which is a bucket-shaped structure. An overflow pipe is provided on the periphery of the central buffer, and the overflow pipe is connected to the inner space of the central buffer.

4. A grain distribution device with a central slow-down section according to claim 1 or 2, characterized in that: The guide buffer includes a forward buffer bin and a reverse buffer bin. The forward buffer bin is an inverted bucket-shaped structure, and the reverse buffer bin is a bucket-shaped structure. The reverse buffer bin is arranged at the upper end of the forward buffer bin and the lower end of the reverse buffer bin is inserted into the upper end of the forward buffer bin. The side wall of the forward buffer bin is a perforated plate.

5. The grain distribution device with a central slow-down section according to claim 1, characterized in that: The central tube of the distributor includes an overflow distribution hopper, the inner diameter of the overflow distribution hopper is larger than the inner diameter of the feed pipe, and a cone is provided below the overflow distribution hopper, and the cone is arranged at the upper end of the central slow-down section; The outer periphery of the overflow distribution hopper is provided with a chute mounting plate, the chute of the radiation distributor is provided on the chute mounting plate, the outer periphery of the overflow distribution hopper is provided with overflow holes, and the overflow holes are arranged above the chute mounting plate.

6. The grain distribution device with a central slow-down section according to claim 1, characterized in that: An upper air box is provided at the upper end of the central slow-down section, and a lower air box is provided at the lower end of the central slow-down section. The upper air box and the lower air box are connected to the ventilation duct; The upper wind box is connected to the air inlet fan through an air inlet pipe, or the upper wind box is connected to the central fan through a ventilation pipe, and the upper wind box is connected to the circulating fumigator through a fumigation pipe.

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