A shallow silo buffer unloading device

By using a combination of overflow hopper and flexible grain flow pipe in shallow circular silos, and adjusting the angle and length of the grain flow pipe, the problems of high grain breakage rate and concentrated impurities during unloading in shallow circular silos are solved, achieving uniform grain storage and reducing the breakage rate.

CN224677365UActive Publication Date: 2026-08-25CENTRAL GRAIN RESERVE LIAOYUAN DIRECT STORAGE CO LTD +1
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Patent Information

Application Number
CN202522275468.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-28
Publication Date
2026-08-25
Estimated Expiration
2035-10-28

AI Technical Summary

Technical Problem

Shallow round silos have a high grain breakage rate during unloading, and the grain entering the silo has concentrated impurities. Automatic grading is also severely affected, making it difficult to maintain the integrity of the grain.

Method used

The system uses an overflow hopper in conjunction with a detachable flexible grain flow pipe. By adjusting the shape and angle of the grain flow pipe, the falling speed of the grain is slowed down, and the grain is discharged automatically when the grain level rises, avoiding blockage and achieving uniform grain feeding at multiple points.

Benefits of technology

It reduced the grain breakage rate, avoided uneven distribution of grain in concentrated areas, and improved the stability and efficiency of the unloading process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of shallow round warehouse buffer unloading device, comprising: overflow hopper, it is installed at the shallow round warehouse's grain inlet;The overflow hopper upper end has grain inlet, and lower end is provided with two grain outlets;Two overflow hopper joints, it is set corresponding with the grain outlet one by one;The overflow hopper joint is tubular, and one end is fixedly connected at the grain outlet;Two flow grain pipes, it is set corresponding with two overflow hopper joints one by one;The flow grain pipe includes first pipe body and multiple second pipe bodies, first pipe body and multiple second pipe bodies are flexible pipe, and the length of first pipe body is greater than the length of second pipe body;Wherein, one end of the first pipe body is detachably fixedly connected on the overflow hopper joint, and other end is detachably connected in one second pipe body one end;Multiple second pipe bodies are detachably connected in turn;Multiple lugs, it is fixedly set at the edge of overflow hopper upper end.
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Description

Technical Field

[0001] This utility model belongs to the technical field of grain unloading devices for grain warehouses, and specifically relates to a shallow circular silo buffer unloading device. Background Technology

[0002] Shallow circular silos are widely used grain storage systems. However, these silos involve numerous interconnected devices, resulting in high energy consumption, high grain breakage rates, concentrated impurities in the grain entering the silo, and severe issues with automatic grading. Maintaining the integrity of the grain during unloading and reducing the breakage rate upon entering the storage facility is a pressing problem that needs to be solved. Utility Model Content

[0003] The purpose of this invention is to provide a shallow circular silo buffer unloading device, which can reduce the grain breakage rate by setting an overflow hopper in conjunction with a detachable flexible grain flow pipe.

[0004] The technical solution provided by this utility model is as follows: A shallow circular silo buffer unloading device includes: An overflow hopper is installed at the grain inlet of a shallow circular silo; the overflow hopper has a grain inlet at the upper end and two grain outlets at the lower end. Two overflow hopper connectors are provided, each corresponding to a grain outlet; the overflow hopper connectors are tubular, with one end fixedly connected to the grain outlet. Two grain flow pipes are provided, each corresponding to one of the two overflow hopper connectors; each grain flow pipe includes a first pipe body and multiple second pipe bodies, both of which are flexible pipes, and the length of the first pipe body is greater than the length of the second pipe body. Wherein, one end of the first tube is detachably fixedly connected to the overflow hopper connector, and the other end is detachably connected to one end of a second tube; multiple second tubes are detachably connected in sequence. Multiple lifting lugs are fixedly installed at the upper edge of the overflow hopper.

[0005] Preferably, the overflow hopper is made of iron, and the overflow hopper connector is made of steel pipe; one end of the overflow hopper connector is welded to the grain outlet.

[0006] Preferably, the overflow hopper is a truncated quadrangular shape with a larger top and a smaller bottom, and the inner wall of the overflow hopper is lined with rubber.

[0007] Preferably, there are four lifting lugs, which are respectively located near the four top corners of the overflow hopper.

[0008] Preferably, both the first tube and the second tube are made of steel wire hose.

[0009] Preferably, the overflow hopper connector is connected to the first pipe body, the first pipe body is connected to the second pipe body, and the adjacent second pipe body is connected by a split joint.

[0010] Preferably, the connection between the first pipe body and the second pipe body, as well as the connection between adjacent second pipe bodies, are provided with inner steel pipes.

[0011] The beneficial effects of this utility model are: The shallow circular silo buffer unloading device provided by this utility model can reduce the grain breakage rate by setting an overflow hopper in conjunction with a detachable flexible grain flow pipe. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the shallow circular silo buffer unloading device described in this utility model.

[0013] Figure 2 This is a schematic diagram of the overflow hopper described in this utility model.

[0014] Figure 3 This is a schematic diagram of the overflow pipe described in this utility model. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0016] like Figure 1-3 As shown, this utility model provides a shallow circular silo buffer unloading device, which mainly includes: an overflow hopper 110, an overflow hopper connector 120, a grain flow pipe 130, and a lifting lug 140.

[0017] The overflow hopper 110 is installed at the grain inlet of the shallow circular silo. The upper end of the overflow hopper has a grain inlet, and the lower end has two grain outlets. Two overflow hopper connectors 120 are provided corresponding to the grain outlets. The overflow hopper connectors 120 are tubular, and one end is fixedly connected to the grain outlet.

[0018] Two feed pipes 130 are correspondingly provided with two overflow hopper connectors 120. Each feed pipe 130 includes a first pipe body 131 and multiple second pipe bodies 132. Both the first pipe body 131 and the multiple second pipe bodies 132 are flexible pipes, and the length of the first pipe body 131 is greater than the length of the second pipe bodies 132. One end of the first pipe body 131 is detachably and fixedly connected to the overflow hopper connector 120, and the other end is detachably connected to one end of a second pipe body 132. The multiple second pipe bodies 132 are sequentially and detachably fixedly connected.

[0019] In this embodiment, both the first pipe body 131 and the second pipe body 132 are made of steel wire hose, which ensures the strength of the overflow pipe while ensuring that the overflow pipe can be deformed.

[0020] Multiple lifting lugs 140 are fixedly connected to the upper edge of the overflow hopper 110 to secure the overflow hopper 110.

[0021] In this embodiment, the overflow hopper 110 is made of iron, and the overflow hopper connector 120 is a steel pipe; one end of the overflow hopper connector 120 is welded to the grain outlet. The overflow hopper 110 has a truncated pyramidal shape, wider at the top and narrower at the bottom. The inner wall of the overflow hopper 110 is lined with rubber to prevent the grain from colliding and breaking when it enters the overflow hopper 110.

[0022] In this embodiment, four lifting lugs 140 are provided, and they are respectively located near the four top corners of the overflow hopper 110.

[0023] The upper end of the first pipe body 131 is fitted onto the overflow hopper connector 120, and is externally fixedly connected by a split joint 150. The first pipe body 131 and the second pipe body 132, as well as adjacent second pipe bodies 132, are also connected by split joints 150.

[0024] The connection points of the overflow hopper joint 120 with the first pipe body 131, the connection points of the first pipe body 131 with the second pipe body 132, and the connection points of two adjacent second pipe bodies 132 are respectively lined with steel pipes to ensure the stability of the connection.

[0025] During use, the tilt angle formed by adjusting the shape of the grain flow tube 130 slows down the grain's descent speed, preventing breakage caused by rapid grain drop. The grain flow tube can be moved as needed to change the grain drop point, achieving multi-point, even grain feeding and completely eliminating the problem of excessive impurities in concentrated areas. When the grain level gradually rises and the grain flow tube cannot discharge grain automatically, the length of the flow tube can be shortened by disassembling the split section, allowing it to continue operating. If grain flow overload or unreasonable inflection point angles occur, causing grain blockage within the tube, the grain can be automatically discharged into the storage bin through the overflow hopper, resolving the blockage.

[0026] Example

[0027] Overflow hopper construction: Cut a 2mm thick iron plate to make a truncated cone-shaped square hopper with an upper side length of 550mm, a lower side length of 450mm, and a height of 350mm. The overflow hopper is lined with soft rubber. Two 6-inch steel pipes are installed at the bottom as overflow hopper connectors. The overflow hopper connectors are 300mm long (for connection with steel wire hoses). φ14 mm steel bars are used to make lifting lugs (for fixing).

[0028] Production of the feedstock pipe: Take 60 meters of 6-inch steel wire hose and cut it into two 30-meter sections. Cut each steel wire hose into four sections: one 19.5-meter section as the first pipe body and three 3.5-meter sections as the second pipe body. Connect them using 6-inch inner lining steel pipes and split joints.

[0029] Steel wire hose hoisting: Three 1000 kg hoists and six 800 kg hoists, 16 5 cm shackles, and 100 meters of 4 mm steel wire rope are used. Three fixed hoisting points and two movable hoisting points are set up outside the warehouse using the observation opening on the warehouse roof, the axial flow fan outlet, and the temperature measuring cable inlet. The already connected overflow hopper and steel wire hose inside the warehouse are hoisted. During hoisting, the upper part of the steel wire hose is lowered with the tilt angle of the warehouse roof, forming an inflection point at the observation opening on the inner eaves of the warehouse, forming an angle (approximately 60 degrees) with the vertical direction, thereby slowing down the falling speed of the grain.

[0030] During grain feeding, two mobile hoists can be used to pull each other and move the grain chute to change the grain dropping point, thus achieving uniform grain feeding.

[0031] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A shallow circular silo buffer unloading device, characterized in that, include: An overflow hopper is installed at the grain inlet of a shallow circular silo; the overflow hopper has a grain inlet at the upper end and two grain outlets at the lower end. Two overflow hopper connectors are provided, each corresponding to a grain outlet; the overflow hopper connectors are tubular, with one end fixedly connected to the grain outlet. Two grain flow pipes are provided, each corresponding to one of the two overflow hopper connectors; each grain flow pipe includes a first pipe body and multiple second pipe bodies, both of which are flexible pipes, and the length of the first pipe body is greater than the length of the second pipe body. Wherein, one end of the first tube is detachably fixedly connected to the overflow hopper connector, and the other end is detachably connected to one end of a second tube; multiple second tubes are detachably connected in sequence. Multiple lifting lugs are fixedly installed at the upper edge of the overflow hopper.

2. The shallow circular silo buffer unloading device according to claim 1, characterized in that, The overflow hopper is made of iron, and the overflow hopper connector is made of steel pipe; one end of the overflow hopper connector is welded to the grain outlet.

3. The shallow circular silo buffer unloading device according to claim 2, characterized in that, The overflow hopper is shaped like a truncated pyramid with a larger top and a smaller bottom, and its inner wall is lined with rubber.

4. The shallow circular silo buffer unloading device according to claim 3, characterized in that, The lifting lugs are configured as four, and are respectively located near the four top corners of the overflow hopper.

5. The shallow circular silo buffer unloading device according to claim 3 or 4, characterized in that, Both the first tube and the second tube are made of steel wire hose.

6. The shallow circular silo buffer unloading device according to claim 5, characterized in that, The overflow hopper connector is connected to the first pipe body, the first pipe body is connected to the second pipe body, and the adjacent second pipe body is connected by a split joint.

7. The shallow circular silo buffer unloading device according to claim 6, characterized in that, The connection between the first pipe body and the second pipe body, as well as the connection between adjacent second pipe bodies, are respectively provided with inner steel pipes.