A bulk grain transportation system for a building warehouse

Abstract

The present invention relates to a bulk grain transportation system for a building warehouse, which includes a feeding mechanism, a lifting mechanism, a material distribution mechanism, and a ring-shaped conveying mechanism. The pipelines of the feeding mechanism, the lifting mechanism, the material distribution mechanism, and the ring-shaped conveying mechanism are sealed and connected. The material distribution mechanism includes a material distribution pipe group, and the discharge ends of the material distribution pipe group are distributed in the storage areas on different floors. A plurality of the ring-shaped conveying mechanisms are independently distributed in the storage areas on different floors, and bulk grain is conveyed to the corresponding storage areas at the discharge ends of the material distribution mechanism. The ring-shaped conveying mechanism includes a ring-shaped feeding pipeline and a circulating conveyor for conveying the bulk grain in the ring-shaped feeding pipeline. A plurality of independently openable and closable discharge ports and a capping mechanism for opening and closing the discharge ports are provided on the ring-shaped feeding pipeline. The present invention can ensure that the entire process of bulk grain entering the warehouse is carried out in a closed environment, effectively prevent dust spillage during transportation, prevent air from entering the interior of the storage area, and reduce the hidden danger of grain mildew and deterioration.

Description

Technical Field

[0001] The present invention relates to the technical field of grain transportation, and particularly to a bulk grain transportation system for a multi-story warehouse. Background Art

[0002] A multi-story warehouse is a modern warehouse form that utilizes a multi-story building structure as a storage space, usually a steel or concrete building with more than 5 floors. It combines automated equipment to achieve efficient storage and management. Compared with traditional single-story warehouses, it has the advantages of small floor area, full utilization of space, and reasonable economic benefits.

[0003] In order to improve the sealing effect during grain storage, multiple independent storage areas for bulk grain are usually set on each floor of the multi-story warehouse. During the process of transporting bulk grain to each storage area, belt conveyors or suspension equipment are usually used to transport the bulk grain to the top of the multi-story warehouse first, and then multiple chute pipes penetrating the floors are used to transport the bulk grain into the storage areas. The airtightness of the entire transportation process is poor, which will cause a large amount of dust to diffuse outward, seriously reducing the air quality near the multi-story warehouse. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a bulk grain transportation system for a multi-story warehouse that seals and transports bulk grain.

[0005] A bulk grain transportation system for a multi-story warehouse includes:

[0006] A feeding mechanism for feeding the bulk grain to be stored into the multi-story warehouse;

[0007] A lifting mechanism for lifting the bulk grain from the discharge end of the feeding mechanism to the top of the multi-story warehouse;

[0008] A distributing mechanism for distributing and transporting the bulk grain from the discharge end of the lifting mechanism to the storage areas. The distributing mechanism includes a group of distributing pipes, and the discharge ends of the group of distributing pipes are distributed in the storage areas on different floors;

[0009] A ring-shaped transportation mechanism. The pipelines of the feeding mechanism, the lifting mechanism, the distributing mechanism, and the ring-shaped transportation mechanism are sealed and connected. A plurality of the ring-shaped transportation mechanisms are independently distributed in the storage areas on different floors, and are used to transport the bulk grain from the discharge end of the distributing mechanism to the corresponding storage areas;

[0010] The ring-shaped transportation mechanism includes a ring-shaped feeding pipeline and a circulating conveyor for transporting the bulk grain in the ring-shaped feeding pipeline. The feeding end of the ring-shaped feeding pipeline is sealed and connected to the discharge end of the group of distributing pipes. A plurality of discharge ports that can be independently opened and closed and are located at different positions are provided on the ring-shaped feeding pipeline, and a cover mechanism for opening and closing the discharge ports is provided.

[0011] By adopting the above technical solution, the feeding mechanism, the lifting mechanism, the material distribution mechanism and the annular conveying mechanism are hermetically connected through pipelines, and the sealing control of the discharge port is carried out through the capping mechanism, which can ensure that the whole process of bulk grain entering the warehouse is carried out in a closed environment, effectively preventing dust spillage during transportation.

[0012] The present invention is further configured as: the feeding mechanism includes a feeding pipe, a dust remover for removing dust from the bulk grain entering the warehouse is provided at the feeding end of the feeding pipe, and a feeding conveyor for conveying the bulk grain to the lifting mechanism is installed inside the feeding pipe.

[0013] By adopting the above technical solution, the dust remover can remove dust from the bulk grain entering the warehouse, reducing the dust content in the bulk grain.

[0014] The present invention is further configured as: the lifting mechanism includes a lifting pipe, the feeding end of the lifting pipe is hermetically connected and communicated with the discharging end of the feeding pipe, and a bucket elevator for conveying the bulk grain to the material distribution pipe group is installed inside the lifting pipe.

[0015] By adopting the above technical solution, the bucket elevator lifts the bulk grain upward into the material distribution mechanism, facilitating the centralized material distribution of the bulk grain and improving the transportation efficiency of the bulk grain to the storage area.

[0016] The present invention is further configured as: the material distribution pipe group includes a horizontal pipe and a plurality of material distribution pipes, the feeding end of the horizontal pipe is hermetically connected and communicated with the discharging end of the lifting pipe, the feeding end of each material distribution pipe is respectively hermetically connected and communicated with the horizontal pipe, and a material distribution conveyor for distributing the bulk grain into each material distribution pipe is installed inside the horizontal pipe.

[0017] By adopting the above technical solution, through the mutual cooperation of the horizontal pipe, the material distribution pipes and the material distribution conveyor, the bulk grain can be three-dimensionally shunted, and the bulk grain is evenly distributed into each annular conveying mechanism, so as to evenly convey the bulk grain to each storage area, avoid blockage of the bulk grain during warehouse entry, and improve the conveying efficiency of the bulk grain.

[0018] The present invention is further configured as: the capping mechanism includes a sealed buffer bin, an arc-shaped gate plate and a driving component for driving the arc-shaped gate plate to slide, the sealed buffer bin covers the bottom of the discharge port and is detachably and fixedly connected to the annular feeding pipeline, and the arc-shaped gate plate is slidably connected to the sealed buffer bin to open and close the discharge port.

[0019] By adopting the above technical solution, by controlling the sliding of the arc-shaped gate plate through the driving component, the opening and closing of the discharge port can be controlled, and then it is convenient to adjust the landing position of the bulk grain.

[0020] The present invention is further configured as: the opening width of the discharge port gradually becomes narrower from one end to the other end, and the direction in which the discharge port gradually becomes narrower is consistent with the moving direction of the arc-shaped gate plate for closing the discharge port.

[0021] By adopting the above technical solution, the discharge port is designed with a gradually reducing shape, which can gradually reduce the discharge amount during the closing process of the discharge port, thus effectively preventing the bulk grain from being shredded by the scraper or the gate during the falling process and reducing the breakage rate of the bulk grain.

[0022] The present invention is further configured as follows: the bottom of the sealed buffer bin has a gravity port opposite to the discharge port, the bottom of the sealed buffer bin is provided with a sealed cover, one end of the sealed cover is rotatably connected to the sealed buffer bin, and an elastic control member for controlling the opening and closing of the sealed cover according to the weight of the bulk grain is provided on the outer wall of the sealed buffer bin.

[0023] By adopting the above technical solution, the sealed cover and the arc-shaped gate cooperate with each other, which can further improve the airtightness of the discharge port. At the same time, when the discharge port is in an incompletely opened state, the lower part of the discharge port can be in a closed state, further improving the airtightness near the discharge port.

[0024] The present invention is further configured as follows: the circulating conveyor includes a sprocket, a conveying endless chain, a conveying scraper, and a driving device for driving the sprocket to rotate. The sprocket is installed at the corner of the annular feeding pipeline and is in meshing transmission with the conveying endless chain. The conveying scraper is installed on the conveying endless chain and is attached to the inner wall of the annular feeding pipeline. A notch for avoiding the sprocket is provided on the conveying scraper.

[0025] By adopting the above technical solution, the notch on the conveying scraper can prevent the conveying scraper from coming into contact and friction with the sprocket at the corner of the annular feeding pipeline, reducing the transmission resistance between the sprocket and the conveying endless chain.

[0026] The present invention is further configured as follows: the annular feeding pipeline includes a plurality of straight pipe bodies and corner sleeves connecting the straight pipe bodies to form an annular pipeline structure. The sprocket is rotatably installed in the corner sleeve. An inner sleeve communicating with the straight pipe body is provided inside the corner sleeve. A transmission port for the sprocket to pass through is provided on the inner sleeve, and the edge of the sprocket extends into the transmission port and is in meshing transmission with the conveying endless chain in the inner sleeve.

[0027] By adopting the above technical solution, the inner sleeve can prevent the bulk grain from coming into contact or friction with the gear at the corner, improving the smoothness of the bulk grain conveying at the corner.

[0028] The present invention is further configured as follows: it further includes a discharging mechanism for conveying the bulk grain in the storage area outwards. The discharging mechanism includes a discharging pipe and an annular discharging pipeline distributed at the bottom of different storage areas. The discharging end of the annular discharging pipeline is hermetically connected and communicated with the discharging pipe, and a dust suppression machine for preventing dust diffusion is provided at the end of the discharging pipe.

[0029] By adopting the above technical solutions, the out-warehouse process of bulk grain in the building warehouse can be sealed and controlled, ensuring a high airtightness in the storage area. At the same time, the design of the dust suppression machine prevents dust from escaping during the out-warehouse of bulk grain.

[0030] In summary, the beneficial technical effects of the present invention are as follows:

[0031] The feeding mechanism, lifting mechanism, material distribution mechanism, and annular conveying mechanism are hermetically connected through pipelines, and the discharge port is sealed and controlled by the capping mechanism, ensuring that the entire in-warehouse process of bulk grain is carried out in a closed environment, effectively preventing dust from overflowing during transportation. While reducing environmental pollution, it improves the airtightness of the storage area, prevents air from entering the interior of the storage area, and reduces the hidden danger of grain mildew and deterioration;

[0032] By controlling the independent opening and closing of each discharge port through the capping mechanism, it is convenient to adjust the falling position of the bulk grain. At the same time, the capping mechanism adopts a double-sealing design of an arc-shaped gate and a sealing cover, which can further improve the airtightness at the discharge port, reduce dust overflow, effectively prevent air from entering the interior of the storage area, and reduce the hidden danger of grain mildew and deterioration;

[0033] By setting an inner sleeve at the corner of the annular feeding pipeline and matching the inner sleeve with the notch structure on the conveying scraper, the smoothness of the bulk grain conveying at the corner can be improved, preventing the bulk grain from contacting or rubbing with the gear at the corner, improving the transmission efficiency of the sprocket and the conveying chain, and making the operation between the sprocket and the conveying chain more stable, effectively improving the transportation efficiency of the bulk grain. Brief Description of the Drawings

[0034] Figure 1 is the process flow diagram of the bulk grain in-warehouse in the embodiment of the present application.

[0035] Figure 2 is the process flow diagram of the bulk grain out-warehouse in the embodiment of the present application.

[0036] Figure 3 is the overall structure diagram of the embodiment of the present application.

[0037] Figure 4 is the structure diagram of the annular conveying mechanism in the embodiment of the present application.

[0038] Figure 5 is the structure diagram of the sealed buffer bin in the embodiment of the present application.

[0039] Figure 6 is the structure diagram of the discharge port in the embodiment of the present application.

[0040] Figure 7 is the structure diagram of the capping mechanism in the embodiment of the present application.

[0041] Figure 8 It is a schematic structural diagram of the corner of the annular feed pipeline in the embodiment of the present application.

[0042] Figure 9 It is a schematic internal structure diagram of the inner sleeve in the embodiment of the present application.

[0043] In the figure, 1 is a feeding mechanism, 11 is a feed pipe, 12 is a dust remover, 2 is a lifting mechanism, 21 is a lifting pipe, 3 is a material distribution mechanism, 31 is a horizontal pipe, 32 is a material distribution pipe, 4 is an annular conveying mechanism, 5 is an annular feed pipeline, 51 is a discharge port, 52 is a straight pipe body, 53 is a corner sleeve, 54 is an inner sleeve, 55 is a transmission port, 6 is a circulating conveyor, 61 is a sprocket, 62 is a conveying ring chain, 63 is a conveying scraper, 631 is a notch, 7 is a sealed buffer bin, 71 is an arc-shaped gate, 72 is a rack, 73 is a gear, 74 is a gravity port, 75 is a sealing cover, 76 is an elastic control member, 77 is a seal, 8 is a discharging mechanism, 81 is an annular discharge pipeline, 82 is a discharge pipe, 83 is a dust suppression machine. Detailed implementation manners

[0044] The present invention will be further described in detail below with reference to the accompanying drawings.

[0045] Refer to Figures 1-9 , a bulk grain transportation system for a building warehouse disclosed by the present invention, includes a feeding mechanism 1 for feeding bulk grain to be stored into the building warehouse;

[0046] a lifting mechanism 2 for lifting bulk grain to the top of the building warehouse at the discharge end of the feeding mechanism 1;

[0047] a material distribution mechanism 3 for distributing and conveying bulk grain to the storage areas at the discharge end of the lifting mechanism 2. The material distribution mechanism 3 includes a material distribution pipe group, and the discharge ends of the material distribution pipe group are distributed in the storage areas on different floors;

[0048] an annular conveying mechanism 4. The pipelines of the feeding mechanism 1, the lifting mechanism 2, the material distribution mechanism 3 and the annular conveying mechanism 4 are sealed and connected. A plurality of annular conveying mechanisms 4 are independently distributed in the storage areas on different floors for conveying bulk grain to the corresponding storage areas at the discharge end of the material distribution mechanism 3;

[0049] The annular conveying mechanism 4 includes an annular feed pipeline 5 and a circulating conveyor 6 for conveying the bulk grain in the annular feed pipeline 5. The annular feed pipeline 5 is sealed and connected to the discharge end of the material distribution pipe group. A plurality of discharge ports 51 that can be independently opened and closed and are located at different positions are provided on the annular feed pipeline 5, and a cover mechanism for opening and closing the discharge ports 51.

[0050] After the bulk grain transport vehicle moves to the vehicle unloading station, the bulk grain in the transport vehicle is unloaded into the feeding mechanism 1 and conveyed to the lifting mechanism 2 through the discharge end of the feeding mechanism 1. The lifting mechanism 2 lifts the bulk grain to the top of the building warehouse and conveys it to the distributing mechanism 3. Then, the distributing mechanism 3 distributes the bulk grain to the annular conveying mechanisms 4 in each storage area through the distributing pipe group. Finally, the opening and closing of the discharge ports 51 at different positions are controlled by the capping mechanism to control the falling points of the bulk grain in the storage area, ensuring that the bulk grain evenly falls into the storage area for storage, avoiding local accumulation or scattering congestion of the bulk grain.

[0051] Refer to Figure 3 , the feeding mechanism 1, the lifting mechanism 2, the distributing mechanism 3 and the annular conveying mechanism 4 are hermetically connected by pipelines, which can ensure that the whole process of the bulk grain entering the warehouse is carried out in a closed environment, effectively preventing dust spillage during transportation. While reducing environmental pollution, it improves the airtightness of the storage area, effectively preventing air from entering the interior of the storage area and reducing the hidden danger of grain mildew and deterioration.

[0052] Refer to Figure 3 , the feeding mechanism 1 includes a feeding pipe 11. A dust collector 12 for removing dust from the bulk grain entering the warehouse is provided at the feeding end of the feeding pipe 11. The dust collector 12 adopts a modular closed dust removal system, which belongs to the prior art and will not be described in detail in this application. Just using the dust collector 12 to remove dust from the incoming grain can ensure that the impurities and dust in the bulk grain are fully separated and effectively prevent the spread of dust.

[0053] An inlet conveyor for conveying the bulk grain to the lifting mechanism 2 is installed inside the feeding pipe 11. The inlet conveyor belongs to the prior art and will not be described in detail in this application. Just using the inlet conveyor to convey the bulk grain in the feeding pipe 11 to the lifting mechanism 2 is sufficient.

[0054] In the specific implementation process, the dust collector 12 is installed in the vehicle unloading station. When the bulk grain transport vehicle moves to the vehicle unloading station, the end of the hopper of the bulk grain transport vehicle enters the interior of the dust collector 12. When the hopper gradually tilts, the bulk grain falls into the dust collector 12 through the hopper for dust removal, preventing dust from spreading out during feeding. At the same time, the dust collector 12 can preliminarily screen the bulk grain, effectively removing the impurities and dust in the grain and ensuring the cleanliness of the grain and the storage environment.

[0055] When the bulk grain falls into the interior of the feeding pipe 11, the motor of the inlet conveyor runs and drives through the meshing of the sprocket and the scraper chain, so that the scraper moves inside the feeding pipe 11, thereby continuously conveying the bulk grain inside the feeding pipe 11 to the lifting mechanism 2 and enabling the bulk grain to enter the lifting mechanism 2 through the discharge end of the feeding pipe 11.

[0056] Refer to Figure 3, the lifting mechanism 2 includes a lifting pipe 21. The feeding end of the lifting pipe 21 is sealed and communicated with the discharging end of the feeding pipe 11. A bucket elevator for lifting bulk grain towards the distributing pipe group is installed inside the lifting pipe 21. The bucket elevator belongs to the prior art and will not be described in detail in this application. Just use the bucket elevator to convey the bulk grain in the lifting pipe 21 towards the distributing pipe group. It has high tightness and stability during the lifting process to achieve low-residue and low-breakage lifting and conveying of the bulk grain.

[0057] During the further implementation process, multiple lifting pipes 21 can be set according to the number of floors of the building warehouse, and the multiple lifting pipes 21 are distributed in a stepped manner. Among them, the discharging end of the lower-position lifting pipe 21 is sealed and communicated with the feeding end of the adjacent higher-position lifting pipe 21, thereby forming a multi-stage lifting structure to lift the bulk grain in sections. This can reduce the lifting pressure of the bucket elevator on the bulk grain, extend the service life of the bucket elevator, and facilitate the rapid conveyance of the bulk grain to the storage areas on different floors.

[0058] Refer to Figure 3 , the distributing pipe group includes a horizontal pipe 31 and multiple distributing pipes 32. The horizontal pipe 31 is horizontally fixed on the top of the building warehouse, and the feeding end of the horizontal pipe 31 is sealed and communicated with the discharging end of the lifting pipe 21. The distributing pipes 32 are vertically fixed on the outer wall of the building warehouse. The feeding end of each distributing pipe 32 is respectively sealed and communicated with the horizontal pipe 31. A distributing conveyor for distributing the bulk grain into each distributing pipe 32 is installed inside the horizontal pipe 31. The distributing conveyor belongs to the prior art and will not be described in detail in this application. Just use the distributing conveyor to distribute the bulk grain in the horizontal pipe 31 into each distributing pipe 32 for conveyance, thereby facilitating the conveyance of the bulk grain to different storage areas.

[0059] Refer to Figures 4-7 , there is a one-to-one correspondence between the capping mechanism and the discharging port 51, and the opening and closing of each discharging port 51 can be independently controlled. The capping mechanism includes a sealed buffer bin 7, an arc-shaped gate 71, and a driving component for driving the arc-shaped gate 71 to slide. The sealed buffer bin 7 covers the bottom of the discharging port 51 and is fixedly connected to the annular feeding pipeline 5 by bolts. The arc-shaped gate 71 fits on the outer surface of the annular feeding pipeline 5 and is slidably connected to the sealed buffer bin 7. The driving component includes a rack 72 and a gear 73. The rack 72 is integrally formed with the bottom of the arc-shaped gate 71. The gear 73 is rotatably arranged inside the sealed buffer bin 7 through a rotating shaft and meshes with the rack 72 for transmission. A motor for controlling the rotation of the gear 73 is installed on the outside of the sealed buffer bin 7 by bolts. When the motor operates and drives the gear 73 to rotate, the gear 73 meshes with the rack 72 for transmission to drive the arc-shaped gate 71 to slide on the sealed buffer bin 7, thereby controlling the corresponding discharging port 51 to open or close to facilitate the regulation of the falling position of the bulk grain.

[0060] Refer to Figure 6, the discharge port 51 adopts a tapered water-drop-shaped opening structure. The opening width of the discharge port 51 gradually narrows from one end to the other end, and the direction in which the discharge port 51 gradually narrows is consistent with the movement direction of the arc-shaped gate 71 for closing the discharge port 51. Compared with the traditional discharge port structure that closes by reducing the opening length, there is still a relatively large discharge amount during closing. In this embodiment, during the process of closing the discharge port 51, near the end of the discharge port 51, the length and width of the discharge port 51 structure are synchronously reduced, so that the discharge amount of the discharge port 51 can be gradually reduced during the closing process, reducing the discharge amount when the discharge port 51 is closed, thereby effectively avoiding the broken grains during the falling process of the bulk grain being sheared by the scraper or the gate, and reducing the breakage rate of the bulk grain.

[0061] Refer to Figure 5 and Figure 7 , the bottom of the sealed buffer bin 7 is an opening structure. A sealing cover 75 is provided at the bottom of the sealed buffer bin 7. The length and width of the sealing cover 75 are both larger than the opening structure at the bottom of the sealed buffer bin 7. And a sealing member 77 is provided on one side of the sealing cover 75 close to the sealed buffer bin 7. The sealing member 77 adopts a rubber sealing pad adhesively fixed to the sealing cover 75. The rubber sealing pad fits with the inner wall of the sealed buffer bin 7. One end of the sealing cover 75 is rotatably connected to the sealed buffer bin 7 through a rotating shaft. An elastic control member 76 for controlling the opening and closing of the sealing cover 75 according to the weight of the bulk grain is provided on the outer wall of the sealed buffer bin 7. The elastic control members 76 are symmetrically arranged on the outside of the sealed buffer bin 7. The elastic control member 76 can adopt a delay air spring, a hydraulic spring or a controllable air spring to control the opening and closing of the sealing cover 75.

[0062] In the specific implementation process, the elastic control member 76 adopts a controllable gas spring. The two ends of the controllable gas spring are respectively rotatably connected to the sealing cover 75 and the sealed buffer bin 7. A weight sensor cooperating with the controllable gas spring is installed inside the sealing cover 75. When the discharge port 51 is in the closed state, the controllable gas spring is in the longest state, making the sealing cover 75 in close contact with the bottom of the sealed buffer bin 7. Double sealing is carried out at the bottom of the discharge port 51 through the sealing cover 75 and the arc-shaped gate 71 to improve the airtightness at the discharge port 51. When the arc-shaped gate 71 slides to gradually open the discharge port 51, under the action of the controllable gas spring, the sealing cover 75 still remains in close contact with the bottom of the sealed buffer bin 7, and the bulk grain gradually accumulates at the bottom end of the sealed buffer bin 7. The weight of the bulk grain on the sealing cover 75 is monitored by the weight sensor. When the bulk grain accumulates to a certain weight, the controllable gas spring gradually contracts inward and drives the sealing cover 75 to gradually open to control the bulk grain to fall into the storage area. When the arc-shaped gate 71 controls the discharge port 51 to gradually close, as the bulk grain falling on the sealing cover 75 gradually decreases, the weight detected by the weight sensor will decrease. At this time, the controllable gas spring is controlled to gradually extend outward and the sealing cover 75 is gradually closed, and the opening size of the gravity port 74 is gradually reduced. When the discharge port 51 is completely closed, the sealing cover 75 is quickly closed. Through the mutual cooperation of the sealing cover 75 and the elastic control member 76, when the discharge port 51 is not fully opened, the lower part of the discharge port 51 can still be in a closed state, further improving the airtightness near the discharge port 51. During the closing process of the discharge port 51, the sealing cover 75 is controlled to gradually close, quickly reducing the opening size at the discharge port 51, effectively blocking air penetration and enhancing the moisture-proof effect on the inside of the storage area.

[0063] In the further implementation process, the seal 77 adopts an inflatable sealing strip. The inflatable sealing strip is adhesively fixed to the sealing cover 75, and the inflatable sealing strip is arranged between the sealing cover 75 and the inner wall of the sealed buffer bin 7. After the sealing cover 75 is closed, the inside of the inflatable sealing strip is inflated, and the sealing strip expands to completely fit with the inner wall of the sealed buffer bin 7. When it is necessary to open the sealing cover 75, the air pressure inside the inflatable sealing strip is reduced, so that the sealing cover 75 can be easily opened. Through this design, the sealing effect at the bottom of the sealed buffer bin 7 can be further improved, effectively blocking air penetration and enhancing the moisture-proof effect on the inside of the storage area.

[0064] Refer to Figure 4 and Figure 8, the loop conveyor 6 includes a sprocket 61, a conveyor endless chain 62, conveyor scrapers 63 and a driving device. The sprocket 61 is installed at the corner of the annular feed pipeline 5 and is in meshing transmission with the conveyor endless chain 62. The conveyor chain uses a bush roller chain, and a number of evenly distributed wing plates are welded on both sides of the conveyor chain. The conveyor scrapers 63 are fixed on the wing plates by bolts, so that the conveyor scrapers 63 are convenient for maintenance or replacement. The driving device is coaxially driven by a motor and the sprocket 61. When the motor runs and drives the sprocket 61 to rotate, the conveyor endless chain 62 can drive the conveyor scrapers 63 to convey the bulk grain.

[0065] In this embodiment, the outer edge of the conveyor scraper 63 is arc-shaped and fits the inner wall of the annular feed pipeline 5, which can prevent material jamming between the conveyor scraper 63 and the inner wall of the annular feed pipeline 5, effectively reducing the breakage rate of the bulk grain. Moreover, the circular segment-shaped conveyor scraper 63 is paired with a bush roller chain, enabling the bulk grain to have a high transportation effect and effectively reducing the required power, achieving large-capacity and long-distance transportation.

[0066] Refer to Figure 8 and Figure 9 , the interior of the conveyor scraper 63 is designed in a hollow cross-section structure form, and a notch 631 for avoiding the sprocket 61 is provided on the side close to the sprocket 61 and the conveyor endless chain 62. The design of this notch 631 can prevent the conveyor scraper 63 from coming into contact and friction with the sprocket 61 at the corner of the annular feed pipeline 5, reducing the transmission resistance between the sprocket 61 and the conveyor endless chain 62. Compared with the traditional overall solid scraper paired with a gear 73 for transmission, since the pitch of the sprocket 61 does not need to consider the interference problem between the conveyor scraper 63 and the conveyor endless chain 62, the pitch of the sprocket 61 can be greatly reduced, the number of teeth of the sprocket 61 can be increased, the number of teeth of the sprocket 61 is increased to more than 15 teeth, the transmission efficiency between the sprocket 61 and the conveyor endless chain 62 is improved, and the operation between the sprocket 61 and the conveyor endless chain 62 is made more stable, effectively improving the transportation efficiency of the bulk grain.

[0067] The annular feed pipeline 5 includes a plurality of straight pipe bodies 52 and corner sleeves 53 connecting the straight pipe bodies 52 to form an annular pipeline structure. The corner sleeves 53 are located at the corners of the annular feed pipeline 5. The sprockets 61 are rotatably installed in the corner sleeves 53. An inner sleeve 54 communicating with the straight pipe bodies 52 is provided inside the corner sleeves 53. The inner sleeve 54 is closely butted with the straight pipe bodies 52 to enable the annular feed pipeline 5 to have a good sealing effect. At the same time, the conveyor scrapers 63 fit the inner wall of the inner sleeve 54. A transmission opening 55 for the sprocket 61 to pass through is provided on the inner sleeve 54. After the edge of the sprocket 61 extends into the transmission opening 55, it meshes with the conveyor endless chain 62 in the inner sleeve 54 for transmission. The design of the inner sleeve 54 can improve the fluidity of the bulk grain at the corners, enabling the bulk grain to quickly and smoothly transition at the corners of the annular feed pipeline 5, effectively preventing the bulk grain from coming into contact or friction with the sprocket 61 or the conveyor endless chain 62 at the corners.

[0068] In the specific implementation process, the annular feed pipeline 5 has at least four corners. A tensioning wheel is installed inside the corner sleeve 53 at one of the corners. The tensioning wheel can slide along the corner sleeve 53 to adjust the tension of the conveying ring chain 62. A motor is installed on the corner sleeve 53 at one of the corners through bolts. The motor can drive the sprocket 61 to rotate so that the sprocket 61 and the conveying ring chain 62 are in transmission. In addition, at the remaining corners of the annular feed pipeline 5, according to the length of the conveying annular feed pipeline 5 or the power requirement, a sprocket 61 without power can be selected or a motor can be installed to further drive the sprocket 61.

[0069] In another embodiment, the feeding mechanism 1, the lifting mechanism 2, the material distribution mechanism 3 and the annular conveying mechanism 4 all use the above-mentioned circulating conveyor 6 to convey the bulk grain in the pipeline. By using the circulating conveyor 6 to convey the bulk grain in the pipeline, efficient and stable transportation of the bulk grain can be realized, ensuring the integrity and continuity of the bulk grain during the conveying process, and effectively preventing the bulk grain from being congested or broken during the conveying process.

[0070] In this embodiment, in order to further improve the sealing performance of the storage area, the horizontal pipe 31, the material distribution pipe 32 and the feeding end of the annular feed pipeline 5 can be arranged outside the storage area to reduce the openings on the wall of the storage area. While improving the airtightness in the storage area, it is convenient to repair the horizontal pipe 31, the material distribution pipe 32 and the feeding port. And the electric drive assembly of the annular feed pipeline 5 is located outside the storage area, which can further reduce the hidden danger of dust explosion.

[0071] In addition, a filter is installed at the feeding end of the annular feed pipeline 5. The filter belongs to the prior art and will not be described in detail in this application. The filter is used to filter the straw mixed in the bulk grain to improve the purity of the stored grain inside the storage area and further prevent the bulk grain from being blocked inside the annular feed pipeline 5.

[0072] The bulk grain conveying system further includes a discharging mechanism 8 for conveying the bulk grain in the storage area outwards. The discharging mechanism 8 includes a discharging pipe 82 and an annular discharging pipeline 81 distributed at the bottom of different storage areas. The annular discharging pipeline 81 has the same structure as the annular feed pipeline 5. The bulk grain is conveyed inside the annular discharging pipeline 81 through the circulating conveyor 6. The feeding port of the annular discharging pipeline 81 is arranged at the bottom of the storage area. There is only one discharging port 51 on the annular discharging pipeline 81, and the discharging port 51 on the annular discharging pipeline 81 is sealed and communicated with the discharging pipe 82. When the discharging port 51 is closed, air can be prevented from entering the annular discharging pipeline 81 through the discharging port 51, thereby improving the airtightness in the outloading process of the building warehouse and enhancing the moisture-proof effect on the inside of the storage area.

[0073] In the specific implementation process, in order to improve the dust suppression effect during outloading, a dust suppression machine 83 for preventing dust diffusion is installed at the end of the discharge pipe 82. The dust suppression machine 83 adopts a DSH dust suppression system, which belongs to the prior art and will not be described in detail in this application. The dust suppression machine 83 can be used to suppress dust for the bulk grain during outloading.

[0074] The implementation principle of this embodiment is as follows: During the process of bulk grain entering the warehouse, the bulk grain transport vehicle pours the bulk grain in the hopper into the interior of the dust collector 12. The bulk grain after being dust-collected by the dust collector 12 falls into the interior of the feed pipe 11 and is conveyed to the lifting pipe 21 through the feed conveyor inside the feed pipe 11. Then, the bulk grain is lifted upward to the interior of the horizontal pipe 31 by the bucket elevator. Next, the bulk grain is distributed to each distribution pipe 32 by the distribution conveyor inside the horizontal pipe 31, and the bulk grain is conveyed to the interior of the annular feed pipeline 5 through the distribution pipe 32. The annular feed pipeline 5 circulates and conveys the bulk grain through the circulating conveyor 6. When the bulk grain is conveyed near the discharge port 51, the motor drives the gear 73 to rotate. Through the meshing transmission between the gear 73 and the rack 72, the arc-shaped gate 71 is gradually opened, and the discharge port 51 is gradually opened. Then, the sealing cover 75 is gradually opened by the elastic control member 76, so that the bulk grain falls into the interior of the storage area through the discharge port 51 for storage.

[0075] During the process of bulk grain outloading from the warehouse, the bulk grain at the bottom of the storage area falls into the feed inlet of the annular discharge pipeline 81. The annular discharge pipeline 81 drives the bulk grain to move from the feed inlet to the discharge port 51 through the circulating conveyor 6. When the bulk grain is conveyed to the discharge port 51, the discharge port 51 is opened by the motor drive, so that the bulk grain falls into the discharge pipe 82 and falls into the hopper of the bulk grain transport vehicle through the end of the discharge pipe 82.

[0076] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A bulk grain transportation system for a building warehouse, comprising: A feeding mechanism (1) for feeding bulk grain to be stored into the building warehouse; A lifting mechanism (2) for lifting bulk grain to the top of the building warehouse at the discharge end of the feeding mechanism (1); A material distribution mechanism (3) for distributing and conveying bulk grain to the storage areas at the discharge end of the lifting mechanism (2); Characterized in that: the material distribution mechanism (3) includes a material distribution pipe group, and the discharge ends of the material distribution pipe group are distributed in the storage areas on different floors; It further includes an annular conveying mechanism (4), and the pipelines of the feeding mechanism (1), the lifting mechanism (2), the material distribution mechanism (3) and the annular conveying mechanism (4) are sealed and connected. A plurality of the annular conveying mechanisms (4) are independently distributed in the storage areas on different floors for conveying bulk grain to the corresponding storage areas at the discharge end of the material distribution mechanism (3); The annular conveying mechanism (4) includes an annular feeding pipeline (5) and a circulating conveyor (6) for conveying the bulk grain in the annular feeding pipeline (5). The feeding end of the annular feeding pipeline (5) is sealed and connected to the discharge end of the material distribution pipe group. A plurality of discharge ports (51) that can be independently opened and closed and have different installation positions are provided on the annular feeding pipeline (5), and a capping mechanism for opening and closing the discharge ports (51), and the capping mechanism includes a sealed buffer bin (7), an arc-shaped gate plate (71) and a driving component for driving the arc-shaped gate plate (71) to slide; The opening width of the discharge port (51) gradually narrows from one end to the other end, and the direction in which the discharge port (51) gradually narrows is consistent with the movement direction of the arc-shaped gate plate (71) for closing the discharge port (51); The bottom of the sealed buffer bin (7) has a gravity port (74) opposite to the discharge port (51). A sealed cover (75) covering the gravity port (74) is provided at the bottom of the sealed buffer bin (7). One end of the sealed cover (75) is rotatably connected to the sealed buffer bin (7), and an elastic control member (76) for controlling the opening and closing of the sealed cover (75) according to the weight of the bulk grain is provided on the outer wall of the sealed buffer bin (7).

2. The bulk grain transportation system for building silos according to claim 1, wherein: The feeding mechanism (1) includes a feeding pipe (11). A dust collector (12) for removing dust from the feeding bulk grain is provided at the feeding end of the feeding pipe (11). A feeding conveyor for conveying bulk grain to the lifting mechanism (2) is installed inside the feeding pipe (11).

3. The bulk grain transportation system for building silos according to claim 2, wherein: The lifting mechanism (2) includes a lifting pipe (21). The feeding end of the lifting pipe (21) is sealed and connected to the discharge end of the feeding pipe (11). A bucket elevator for conveying bulk grain to the material distribution pipe group is installed inside the lifting pipe (21).

4. The bulk grain transportation system for building silos according to claim 3, wherein: The material distribution pipe group includes a horizontal pipe (31) and a plurality of material distribution pipes (32). The feeding end of the horizontal pipe (31) is sealed and connected to the discharge end of the lifting pipe (21). The feeding end of each material distribution pipe (32) is respectively sealed and connected to the horizontal pipe (31). A material distribution conveyor for distributing bulk grain to each material distribution pipe (32) is installed inside the horizontal pipe (31).

5. The bulk grain transportation system for building silos according to claim 1, characterized in that: The sealed buffer bin (7) covers the bottom of the discharge port (51) and is detachably and fixedly connected to the annular feed pipeline (5). The arc-shaped gate (71) is slidably connected to the sealed buffer bin (7) to open and close the discharge port (51).

6. The bulk grain transportation system for building silos according to claim 1, characterized in that: The circulating conveyor (6) includes a sprocket (61), a conveying endless chain (62), a conveying scraper (63), and a driving device for driving the sprocket (61) to rotate. The sprocket (61) is installed at the corner of the annular feed pipeline (5) and is in meshing transmission with the conveying endless chain (62). The conveying scraper (63) is installed on the conveying endless chain (62) and is in contact with the inner wall of the annular feed pipeline (5). A notch (631) for avoiding the sprocket (61) is provided on the conveying scraper (63).

7. The bulk grain transportation system for building silos according to claim 6, characterized in that: The annular feed pipeline (5) includes a plurality of straight pipe bodies (52) and corner sleeves (53) connecting the straight pipe bodies (52) to form an annular pipeline structure. The sprocket (61) is rotatably installed in the corner sleeve (53). An inner sleeve (54) communicating with the straight pipe body (52) is provided inside the corner sleeve (53). A transmission port (55) for the sprocket (61) to pass through is provided on the inner sleeve (54). After the edge of the sprocket (61) extends into the transmission port (55), it is in meshing transmission with the conveying endless chain (62) in the inner sleeve (54).

8. The bulk grain transportation system for a building silo according to claim 1, wherein: It further includes a discharge mechanism (8) for conveying the bulk grain in the storage area outwards. The discharge mechanism (8) includes a discharge pipe (82) and an annular discharge pipeline (81) distributed at the bottom of different storage areas. The discharge end of the annular discharge pipeline (81) is hermetically connected to the discharge pipe (82). A dust suppression machine (83) for preventing dust diffusion is provided at the end of the discharge pipe (82).

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