A grain storage material conveying system

Abstract

A grain storage material conveying system includes a pipeline circulation conveying device, a feeding device connected to the inlet of the pipeline circulation conveying device, and a discharging device connected to the outlet of the pipeline circulation conveying device. The pipeline circulation conveying device consists of a feeding section located outside the grain storage and on the ground, a discharging section located at the top inside the grain storage, and a lifting section connecting the feeding section and the discharging section. The discharging device includes a conveying track located below the discharging section, a conveying trolley that can travel along the conveying track, a second drive mechanism for driving the conveying trolley, and a dust collection hopper located below and connected to the conveying trolley. Grain trucks only need to queue outside the grain storage to unload, without having to enter the grain storage, reducing the risk of grain trucks damaging the grain and eliminating the safety hazards to personnel caused by frequent entry of grain trucks into the grain storage.

Description

Technical Field

[0001] This invention relates to the field of material conveying, and in particular to a grain storage material conveying system. Background Technology

[0002] The main method of transporting grain to grain silos involves grain trucks driving into the silos to unload the grain, followed by manual spreading of the grain evenly. However, unloading the grain generates dust, frequent truck traffic requires specific traffic control measures to ensure safety, and the grain can be damaged when trucks leave the silos. Furthermore, manually spreading the grain evenly is time-consuming, labor-intensive, and inefficient. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a grain storage material conveying system that has higher operating efficiency, better operating safety, and can reduce dust.

[0004] To solve the above-mentioned technical problems, the technical solution of the present invention is: a grain storage material conveying system, including a pipeline circulation conveying device, a feeding device connected to the inlet of the pipeline circulation conveying device, and a discharging device connected to the outlet of the pipeline circulation conveying device.

[0005] The pipeline circulation conveying device consists of a feeding section located outside the grain silo and on the ground, a discharging section located at the top inside the grain silo, and a lifting section connecting the feeding section and the discharging section. The pipeline circulation device includes a ring-shaped pipe, a conveying chain located inside the ring-shaped pipe, several scrapers located on the conveying chain, and a first driving mechanism for driving the conveying chain. The discharging port is located at the bottom of the discharging section, and a movable door is provided at the discharging port.

[0006] The feeding device includes a long, narrow funnel, a material leveling plate located at the upper inlet of the funnel, and a dust collection hood covering the funnel. The lower outlet of the funnel is connected to the inlet of the pipeline circulation device. The material leveling plate includes several parallel and equidistant material leveling rods, and a feeding channel is formed between adjacent material leveling rods.

[0007] The unloading device includes a conveying track located below the unloading section, a conveying trolley that can travel along the conveying track, a second drive mechanism for driving the conveying trolley, and a dust collection hopper located below and connected to the conveying trolley. The dust collection hopper includes an outer shell and a flow control cone located inside the outer shell. The upper end of the outer shell is connected to the conveying trolley via a spring. The outer shell includes an inverted conical bottom plate and cylindrical side panels connected to the bottom plate. The bottom of the inverted conical bottom plate has a discharge port, which is connected to a flexible unloading pipe. The flow control cone... It includes an upper cone and a lower cone. The top of the upper cone is fixedly connected to the conveying trolley via a connecting rod. The upper cone is located inside the side panel. The gap between the upper cone and the side panel forms a first unloading channel, which gradually narrows from top to bottom. The lower cone is located inside an inverted conical base plate. The taper of the lower cone is the same as that of the inverted conical base plate. The gap between the lower cone and the inverted conical base plate forms a second unloading channel. The first unloading channel and the second unloading channel are connected. The size of the second unloading channel changes with the raising and lowering of the outer shell.

[0008] The principle of this invention: A grain transport vehicle delivers grain to the inlet outside the grain silo. The grain is then poured into the hopper of the feeding device, where it is evenly dispersed by a leveling plate and enters the pipeline circulation conveying device. In the pipeline circulation conveying device, the grain is conveyed forward through a conveying chain and scrapers. After being lifted by the lifting section, the grain enters the unloading section. When unloading is required at a certain location within the grain silo, the conveying trolley moves the dust collection hopper to the corresponding unloading port, opens the movable door of the unloading port at that location, and the scraper pushes the grain to the unloading port. The grain falls from the unloading port into the dust collection hopper, and after flow control via the dust collection hopper, the grain is unloaded to a designated storage point. A dust extraction hood is installed at the feed inlet to remove dust raised by grain trucks during unloading. Grain trucks can simply queue outside the grain silo to unload, eliminating the need to enter and reducing the risk of damage to the grain. This also eliminates safety hazards associated with frequent truck entry into the silo. Grain is unloaded through a dust collection hopper and flexible pipes, resulting in a more concentrated drop, easier control and management of the grain storage area, and less dust generation, leading to a better environment within the silo. As grain falls into the dust collection hopper, its own weight causes it to fall continuously, increasing the downward force on the bottom of the outer shell and stretching the spring, thus widening the second unloading channel and accelerating the drop. The grain is transported through pipes and unloaded through the dust collection hopper, reducing labor costs and eliminating the need for manual distribution of grain, thus improving work efficiency.

[0009] As an improvement, the annular pipe is composed of several pipe units connected together, with adjacent pipe units connected by a connecting plate. The bottom of the annular pipe is arc-shaped, and the lower end of the scraper is also arc-shaped.

[0010] As an improvement, the first drive mechanism includes several power units distributed on the conveyor chain. The power unit includes a first motor and a first sprocket. The first motor drives the conveyor chain through the first sprocket.

[0011] As an improvement, the dust hood includes a hood body, a negative pressure fan, and a dust collection bag. The negative pressure fan creates negative pressure inside the hood body and outputs the negative pressure to the dust collection bag.

[0012] As an improvement, the top of the grain silo is provided with a support frame for supporting the unloading section and the conveying track.

[0013] As an improvement, the movable door is a flip-top or sliding movable door, and the movable door is equipped with a switching mechanism, which is an electric push rod.

[0014] As an improvement, the second drive mechanism includes a rack arranged parallel to the conveying track, a gear meshing with the rack, and a second motor mounted on the conveying trolley, the second motor driving the gear to move on the rack.

[0015] As an improvement, the second drive mechanism includes a walking chain connected to the conveyor trolley and a third motor that drives the walking chain.

[0016] As an improvement, a position sensor switch for sensing the dust collection hopper is provided on the annular pipe at the discharge port.

[0017] The beneficial effects of this invention compared to the prior art are:

[0018] 1. Install a dust suction hood at the feed inlet to remove the dust raised when the grain truck is unloading.

[0019] 2. Grain trucks only need to queue outside the grain warehouse to unload the grain, without having to enter the grain warehouse, which reduces the risk of grain trucks damaging the grain and eliminates the safety hazards to personnel caused by frequent entry of grain trucks into the grain warehouse.

[0020] 3. Grain is unloaded through dust collection hoppers and flexible pipes, resulting in a more concentrated drop location. This makes the storage points inside the grain silo easier to control and manage, and reduces the likelihood of dust generation, leading to a better environment inside the grain silo.

[0021] 4. When the grain falls into the dust collection hopper, due to the weight of the grain itself, the grain continues to fall in, the downward force on the bottom of the outer shell continuously increases, the length of the spring is continuously stretched, the second discharge channel is continuously enlarged, thereby accelerating the speed at which the grain falls.

[0022] 5. Grains are transported through pipelines and unloaded through dust collection hoppers, reducing labor costs and eliminating the need for manual labor to spread the grains evenly, thus improving work efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the present invention.

[0024] Figure 2 This is a schematic diagram of the feeding device.

[0025] Figure 3 This is a schematic diagram of the unloading device.

[0026] Figure 4 This is a schematic diagram of a dust collection hopper.

[0027] Figure 5 This is a cross-sectional view of the dust collection hopper.

[0028] Figure 6 This is a schematic diagram of the interior of a ring-shaped pipe. Detailed Implementation

[0029] The present invention will now be further described with reference to the accompanying drawings.

[0030] like Figure 1 As shown, a grain storage material conveying system includes a pipeline circulation conveying device 3, a feeding device 2 connected to the inlet of the pipeline circulation conveying device 3, and a discharging device connected to the outlet of the pipeline circulation conveying device 3.

[0031] like Figures 1 to 3As shown, the pipeline circulation conveying device 3 consists of a feeding section 31 located outside the grain silo 1 and on the ground, a discharging section 33 located at the top inside the grain silo 1, and a lifting section 32 connecting the feeding section 31 and the discharging section 33. The pipeline circulation conveying device 3 includes an annular pipe 38, a conveying chain 36 located within the annular pipe 38, several scrapers 37 mounted on the conveying chain 36, and a first driving mechanism for driving the conveying chain 36. A support frame 5 is provided at the top of the grain silo 1 to support the discharging section 33 and the conveying track 8. The feeding port is located in the feeding section 31, and its length can be set as needed to allow for rapid feeding. After the grain enters the annular pipe 38, the conveying chain 36 drives the scrapers 37 to transport the grain forward from the feeding port, preventing grain accumulation. The feeding section 31 and the discharging section 33 are horizontally arranged to ensure stable grain transport. The lifting section 32 is vertically arranged to lift the grain upwards, giving it gravitational potential energy, allowing it to be discharged under its own weight. The unloading port is located at the bottom of the unloading section 33. A movable door 35 is provided at the unloading port. The movable door 35 is either a flip-top or a push-pull type. The movable door 35 is equipped with a switching mechanism 6. In this embodiment, the switching mechanism 6 is an electric push rod 61. When the movable door 35 needs to be opened, the electric push rod 61 touches the movable door 35 to open it. When the movable door 35 needs to be closed, the electric push rod 61 lifts it to close it. The opening and closing of the movable door 35 can be achieved in various ways. For example, the movable door 35 can be closed by magnetic attraction. When the electromagnet is de-energized and loses its magnetic force, the movable door 35 can be opened again by its own gravity. When it needs to be closed, it can be closed by the electric push rod. The openings of the unloading section 33 can be arranged according to the internal conditions of the grain silo 1. In principle, one unloading port is set up for each grain storage point. The first drive mechanism includes several power units 34 distributed on the conveyor chain 36. Power units 34 are installed at the turning points of the feed section 31 and the annular pipe 38 to ensure smooth operation of the conveyor chain 36. Each power unit 34 includes a first motor and a first sprocket, with the first motor driving the conveyor chain 36 via the first sprocket. Figure 6 As shown, the annular pipe 38 is composed of several pipe units connected together. Adjacent pipe units are connected by connecting plates, which facilitates the installation and maintenance of the annular pipe 38. The bottom of the annular pipe 38 is arc-shaped, and the lower end of the scraper 37 is also arc-shaped. The two shapes match to ensure that the grain in the annular pipe 38 can be pushed by the scraper 37 as much as possible, reducing the amount of residual grain.

[0032] like Figure 2As shown, the feeding device 2 includes a long, narrow funnel 21, a uniform feeding plate 22 located at the upper inlet of the funnel 21, and a dust collection hood 23 covering the funnel 21. The lower outlet of the funnel 21 connects to the inlet of the feeding section 31, and the grain dumped by the grain truck enters the feeding section 31 through the funnel 21. The uniform feeding plate 22 includes several parallel and equidistant uniform feeding rods, forming a feeding channel between adjacent uniform feeding rods. The grain is dispersed into the uniform feeding plate 22, reducing grain accumulation. The dust collection hood 23 includes a hood body, a negative pressure fan, and a dust collection bag. The negative pressure fan creates negative pressure inside the hood body and outputs the negative pressure to the dust collection bag. When the grain is dumped, dust will appear above the funnel 21. The dust collection hood 23 can reduce the dust being blown away by the ambient wind and can also absorb the dust through negative pressure, reducing environmental pollution.

[0033] like Figure 3 As shown, the unloading device includes a conveying track 8 located below the unloading section 33, a conveying trolley 7 that can travel along the conveying track 8, a second drive mechanism that drives the conveying trolley 7, and a dust collection hopper 4 located below and connected to the conveying trolley 7. In this embodiment, the conveying track 8 is arranged below two straight unloading sections 33, so the conveying trolley 7 only needs to travel in a straight line. The top of the grain silo 1 is provided with a support frame for supporting the unloading section 33 and the conveying track 8. The second drive mechanism includes a rack arranged parallel to the conveying track 8, a gear meshing with the rack, and a second motor mounted on the conveying trolley 7. The second motor drives the gear to travel on the rack. The conveying trolley 7 is powered by itself and controlled wirelessly or by wire. The second drive mechanism can also be implemented in other ways, such as the second drive mechanism including a walking chain connected to the conveying trolley 7 and a third motor that drives the walking chain. The two ends of the walking chain are respectively connected to the two ends of the conveying trolley 7, and the third motor is connected to a sprocket. The sprocket drives the walking chain, and the forward and reverse rotation of the third motor realizes the forward and backward linear movement of the conveying trolley 7.

[0034] like Figure 4 , 5As shown, the dust collection hopper 4 includes an outer shell 41 and a flow control cone 42 disposed within the outer shell 41. The upper end of the outer shell 41 is connected to the conveying trolley 7 via a spring 72. The outer shell 41 includes an inverted conical bottom plate 412 and a cylindrical side plate 411 connected to the bottom plate. The bottom of the inverted conical bottom plate 412 is provided with a discharge port 45, which is connected to a flexible discharge pipe 46. The flow control cone 42 includes an upper cone 421 and a lower cone 422. The top of the upper cone 421 is fixedly connected to the conveying trolley 7 via a connecting rod 71. The upper cone 421 is disposed within the side plate 411, and the gap between the upper cone 421 and the side plate 411 forms a first discharge channel 43, which gradually narrows from top to bottom. The lower cone 422 is disposed on the inverted conical bottom plate 412. Inside, the taper of the lower cone 422 is the same as the taper of the inverted conical base plate 412. The gap between the lower cone 422 and the inverted conical base plate 412 forms a second unloading channel 44. The first unloading channel 43 is connected to the second unloading channel 44, and the size of the second unloading channel 44 changes with the raising and lowering of the outer shell. A position sensor switch for sensing the dust collection hopper is provided on the annular pipe at the unloading port position, so that the dust collection hopper can be accurately stopped at the unloading port.

[0035] The principle of this invention: A grain transport vehicle delivers grain to the inlet outside the grain silo 1. The grain transport vehicle pours the grain into the hopper 21 of the feeding device 2. The grain is then evenly dispersed by the equalizing plate 22 and enters the pipeline circulation conveying device 3. In the pipeline circulation conveying device 3, the grain in the annular pipe 38 is conveyed forward by the conveying chain 36 and the scraper 37. After being lifted by the lifting section 32, the grain enters the unloading section 33. When unloading is required at a certain location in the grain silo 1, the conveying trolley 7 moves the dust collection hopper 4 to the bottom of the corresponding unloading port, opens the movable door 35 of the unloading port at the corresponding location, and pushes the grain to the unloading port position by the scraper 37. The grain falls from the unloading port into the dust collection hopper 4. After flow control by the dust collection hopper 4, the grain is unloaded to the designated stacking point. A dust suction hood 23 is installed at the feed inlet to remove dust raised by the grain trucks during unloading. The grain trucks only need to queue outside the grain silo 1 to unload, without having to enter the grain silo 1, reducing the risk of damage to the grain and eliminating the safety hazards caused by frequent entry of grain trucks into the grain silo 1. The grain is unloaded through the dust collection hopper 4 and flexible pipes, resulting in a more concentrated drop position. The stacking points inside the grain silo 1 are easier to control and manage, and less likely to generate dust, resulting in a better environment inside the grain silo 1. As the grain falls into the dust collection hopper 4, due to its own gravity, the grain continues to fall, and the downward force on the bottom of the outer shell continuously increases. The length of the spring 72 is continuously stretched, making the second unloading channel 44 continuously larger, thereby accelerating the speed at which the grain falls. The grain is transported through pipes and unloaded through the dust collection hopper 4, reducing labor costs and eliminating the need for manual work to spread the grain evenly, thus improving work efficiency.

Claims

1. A grain storage material conveying system, characterized in that: It includes a pipeline circulation conveying device, a feeding device that connects to the inlet of the pipeline circulation conveying device, and a discharging device that connects to the outlet of the pipeline circulation conveying device. The pipeline circulation conveying device consists of a feeding section located outside the grain silo and on the ground, a discharging section located at the top inside the grain silo, and a lifting section connecting the feeding section and the discharging section. The pipeline circulation conveying device includes a ring-shaped pipe, a conveying chain located inside the ring-shaped pipe, several scrapers located on the conveying chain, and a first driving mechanism for driving the conveying chain. The discharging port is located at the bottom of the discharging section, and a movable door is provided at the discharging port. The feeding device includes a long, narrow funnel, a material leveling plate located at the upper inlet of the funnel, and a dust collection hood covering the funnel. The lower outlet of the funnel is connected to the inlet of the pipeline circulation device. The material leveling plate includes several parallel and equidistant material leveling rods, and a feeding channel is formed between adjacent material leveling rods. The unloading device includes a conveying track located below the unloading section, a conveying trolley that can travel along the conveying track, a second drive mechanism for driving the conveying trolley, and a dust collection hopper located below and connected to the conveying trolley. The dust collection hopper includes an outer shell and a flow control cone located inside the outer shell. The upper end of the outer shell is connected to the conveying trolley via a spring. The outer shell includes an inverted conical bottom plate and cylindrical side panels connected to the bottom plate. The bottom of the inverted conical bottom plate has a discharge port, which is connected to a flexible unloading pipe. The flow control cone... It includes an upper cone and a lower cone. The top of the upper cone is fixedly connected to the conveying trolley via a connecting rod. The upper cone is located inside the side panel. The gap between the upper cone and the side panel forms a first unloading channel, which gradually narrows from top to bottom. The lower cone is located inside an inverted conical base plate. The taper of the lower cone is the same as that of the inverted conical base plate. The gap between the lower cone and the inverted conical base plate forms a second unloading channel. The first unloading channel and the second unloading channel are connected. The size of the second unloading channel changes with the raising and lowering of the outer shell.

2. The grain storage material conveying system according to claim 1, characterized in that: The annular pipe is composed of several pipe units connected together, and adjacent pipe units are connected by connecting plates. The bottom of the annular pipe is arc-shaped, and the lower end of the scraper is also arc-shaped.

3. The grain storage material conveying system according to claim 1, characterized in that: The first drive mechanism includes several power units distributed on the conveyor chain. Each power unit includes a first motor and a first sprocket. The first motor drives the conveyor chain through the first sprocket.

4. A grain storage material conveying system according to claim 1, characterized in that: The dust collection hood includes a hood body, a negative pressure fan, and a dust collection bag. The negative pressure fan creates negative pressure inside the hood body and outputs the negative pressure to the dust collection bag.

5. A grain storage material conveying system according to claim 1, characterized in that: The top of the grain silo is equipped with a support frame for supporting the unloading section and the conveying track.

6. A grain storage material conveying system according to claim 1, characterized in that: The movable door is a flip-top or sliding movable door, and the movable door is equipped with a switching mechanism, which is an electric push rod.

7. A grain storage material conveying system according to claim 1, characterized in that: The second drive mechanism includes a rack arranged parallel to the conveying track, a gear meshing with the rack, and a second motor mounted on the conveying trolley. The second motor drives the gear to move on the rack.

8. A grain storage material conveying system according to claim 1, characterized in that: The second drive mechanism includes a walking chain connected to the conveyor trolley and a third motor that drives the walking chain.

9. A grain storage material conveying system according to claim 1, characterized in that: The annular pipe is equipped with a position sensor switch at the discharge port for sensing the dust collection hopper.

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