Supporting wall folding plate falling device with uniforming and buffering

Abstract

This utility model relates to a buttress-type de-crushing device with uniform feeding and buffering, comprising symmetrically arranged inclined chutes on both sides of the silo top and symmetrically arranged vertical deflecting chutes on both sides of the silo wall. The corresponding inclined chutes and vertical deflecting chutes are vertically connected. The silo top feed inlet and the inclined chutes are vertically aligned, facilitating grain entry into the two inclined chutes from the feed inlet. A vertical chute is provided at the junction of the two inclined chutes, connecting upwards to the silo top feed inlet and downwards through the inclined chutes, connecting to an inverted conical buffer hopper. This facilitates grain flow out of the buffer hopper and accumulation within the vertical chute. Overflow ports are provided on both sides of the vertical chute, connecting to the inclined chutes on both sides through the overflow ports. Multiple sets of buffer components for grain deceleration are spaced apart within each of the inclined chutes on both sides. This utility model can significantly improve the situation of severe uneven feeding within the silo, and simultaneously reduce the grain breakage rate through deceleration.

Description

Technical Field

[0001] This utility model relates to the field of grain storage technology, and in particular to a buttress-type folding plate device with uniform material distribution and buffering for reducing crushing. Background Technology

[0002] Silos and shallow round silos are grain storage and logistics facilities used for loading and storing grain. Their loading height is generally 30-50 meters. After the grain enters the silo from the top center, it falls directly to the bottom, which can cause significant breakage. To reduce the breakage rate, breakage reduction devices are installed inside the silo, one type being the buttress folding plate breakage reduction device.

[0003] The structure of the buttress-mounted folding plate crushing reduction device is as follows: A vertical reversing chute installed on the silo wall is connected to a herringbone-shaped inclined chute on the silo roof. Grain enters the two inclined chutes from the silo roof inlet and flows by gravity into the vertical reversing chute. Within the vertical reversing chute, the grain undergoes multiple reversals and changes of direction before entering the silo wall. The buttress-mounted folding plate crushing reduction device primarily reduces speed and minimizes breakage by causing the grain to change direction multiple times within the vertical reversing chute. The structure of the buttress-mounted folding plate crushing reduction device is prior art; reference can be made to the silo buttress-mounted folding plate crushing reduction device disclosed in patent publication number CN2714498Y.

[0004] However, the existing buttress-type folding plate crushing device has the following problems when applied: 1. The conveying equipment transports the grain to the silo through the chute system. When the grain passes through the chute in the chute system, it forms a flat material flow that is close to the bottom of the chute. This flat material flow enters the two herringbone-shaped inclined chute from the feed inlet at the top of the silo. Since the flat material flow usually falls close to the feed inlet at the top of the silo, it is very easy to cause uneven distribution of grain in the two inclined chute. In severe cases, it may even cause one inclined chute to be filled while the other inclined chute is empty. This uneven distribution of feed will cause serious imbalance in the silo, resulting in uneven stress on the silo body and increasing the workload of subsequent leveling work.

[0005] 2. The initial velocity of the grain before entering the warehouse, plus the acceleration in the inclined chute, results in a very high velocity of the grain before entering the vertical return chute. The grain itself has a large kinetic energy, which will cause a large impact after entering the return chute, resulting in a large breakage rate. Summary of the Invention

[0006] To address the problems of uneven grain feeding and high grain flow rate, this invention provides a buttress-type baffle plate device with uniform feeding and buffering. A vertical chute with an overflow outlet is installed between the feed inlet on the top of the silo and the inclined chute. After the grain accumulates in the vertical chute, it flows evenly to the inclined chute through the overflow outlet, achieving uniform discharge. At the same time, buffer baffles are installed at intervals in the inclined chute to limit the grain flow rate and reduce the grain breakage rate.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A buttress-type de-crushing device with uniform feeding and buffering includes inclined chutes symmetrically arranged on both sides of the silo top and vertical deflection chutes symmetrically arranged on both sides of the silo wall. The corresponding inclined chutes and vertical deflection chutes are vertically connected to each other to facilitate the flow of grain from the inclined chutes to the vertical deflection chutes. The tops of the inclined chutes on both sides are connected and interconnected. The feed inlet on the silo top and the joint of the inclined chutes are vertically aligned to facilitate the entry of grain from the feed inlet into the two inclined chutes. A vertical chute is provided at the joint of the inclined chutes on both sides. The vertical chute is connected upward to the feed inlet on the silo top and downward through the inclined chutes to connect with an inverted conical buffer hopper, which facilitates the flow of grain from the buffer hopper and its accumulation in the vertical chute. Overflow ports are symmetrically opened on both sides of the vertical chute, and the vertical chute is connected to the inclined chutes on both sides through the overflow ports. Multiple sets of buffer components for grain deceleration are arranged at intervals in each of the inclined chutes on both sides.

[0009] Furthermore, the inclined chutes on both sides are arranged in a "V" shape, and trusses are provided on both sides of the silo roof. The silo roof is connected to the inclined chutes through the trusses, and the trusses and inclined chutes are arranged vertically. The trusses facilitate the suspension and support of the inclined chutes, ensuring reliable support.

[0010] Furthermore, the truss includes an inclined section and a vertical section. One end of the inclined section is fixedly connected to the warehouse wall, and the other end extends inclinedly upward along the inclined chute to the center of the warehouse roof. The other end of the inclined section is connected to the vertical section, which is vertically connected and fixedly connected to the warehouse roof. This achieves a secure installation of the truss on the warehouse roof.

[0011] Furthermore, the vertical chute is vertically arranged at the center of the silo top, and the buffer hopper is open at the top and bottom to facilitate the flow of grain. The cross-section of the buffer hopper decreases from top to bottom to facilitate the gradual accumulation of grain in the buffer hopper and the vertical chute.

[0012] Furthermore, the cross-sectional dimension of the vertical chute is smaller than the width of the inclined chute to prevent the grain flowing out of the overflow port from spilling onto the outside of the inclined chute.

[0013] Furthermore, the number of overflow ports on each side consists of multiple rows arranged vertically at intervals. The lower row of overflow ports has a larger width and only one port, while the remaining rows have smaller widths and multiple overflow ports.

[0014] Furthermore, each set of buffer components includes a fixed steel pipe, a rotating shaft plate, and a buffer baffle. Fixed steel pipes are provided on both sides of the inclined chute, and the rotating shaft plate is rotatably arranged between the fixed steel pipes on both sides. The buffer baffle is adjustablely arranged on the rotating shaft plate. The buffer baffle extends into the inclined chute and is in close contact with the bottom of the inclined chute to block the flowing grain.

[0015] Furthermore, the rotating shaft plate is provided with an adjustment vertical hole, and the rotating shaft plate and the buffer baffle are connected by a mounting bolt. The mounting bolt passes through the adjustment vertical hole and moves up and down along the adjustment vertical hole to facilitate the adjustment of the height position of the buffer baffle. The buffer baffle is a flexible material plate.

[0016] The beneficial effects of this utility model through the above technical solution are:

[0017] This invention features a vertical chute and a buffer hopper installed at the intersection of two inclined chutes, below the feed inlet on the top of the silo. The buffer hopper and vertical chute accumulate some grain during operation, reducing the velocity of the grain entering from the feed inlet on the top of the silo to near 0 m / s, thus acting as a buffer. Grain overflows evenly from the overflow holes on the side of the vertical chute into the two inclined chutes, preventing uneven feeding caused by irregular grain flow and significantly improving the severe uneven feeding phenomenon within the silo. Multiple rows of overflow outlets at the top and bottom even out the material distribution and prevent splashing of material falling from the feed inlet. The buffer hopper has an opening at the bottom, allowing a small amount of grain to fall from the hopper to the bottom of the silo.

[0018] This invention features buffer baffles installed at intervals on the inclined chute. These baffles are made of rubber and their height is adjustable. The lower end of each baffle is flush against the bottom of the inclined chute. When there is grain in the chute, the grain's weight pushes the buffer baffles aside, further reducing the grain's falling speed. This reduces the kinetic energy of the grain, minimizing the impact upon entering the vertical return chute and lowering the grain breakage rate during storage. Attached Figure Description

[0019] Figure 1 This is a front view of a buttress folding plate crushing device with uniform material distribution and buffering according to this utility model.

[0020] Figure 2 This utility model relates to a buttress-type folding plate crushing device with uniform material distribution and buffering. Figure 1 Enlarged schematic diagram of the vertical chute.

[0021] Figure 3 This is a front view of a vertical chute of a buttress-type folding plate crushing device with uniform material distribution and buffering according to this utility model.

[0022] Figure 4 This is a side view of a vertical chute of a buttress-type folding plate crushing device with uniform material distribution and buffering according to this utility model.

[0023] Figure 5 This is a front view of the installation of the buffer baffle of the buttress folding plate crushing device with material equalization and buffering according to this utility model.

[0024] Figure 6 This is a cross-sectional view of the installation of the buffer baffle of a buttress folding plate crushing device with material equalization and buffering according to this utility model.

[0025] The attached diagram is labeled as follows: 1. Bin top, 2. Bin wall, 3. Inclined chute, 4. Vertical return chute, 5. Truss, 51. Inclined section, 52. Vertical section, 6. Vertical chute, 7. Buffer hopper, 8. Overflow port, 9. Buffer component, 10. Fixed steel pipe, 11. Rotary shaft plate, 111. Shaft body, 112. Plate body, 12. Feed inlet, 13. Buffer baffle, 14. Adjustment vertical hole, 15. Mounting bolt. Detailed Implementation

[0026] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings:

[0027] like Figures 1-6 As shown, a buttress-type de-crushing device with uniform material distribution and buffering includes inclined chutes 3 symmetrically arranged on both sides of the silo top 1 and vertical deflection chutes 4 symmetrically arranged on both sides of the silo wall 2. The inclined chutes 3 have a "U"-shaped cross-section, and the two sides of the inclined chutes 3 are made of channel steel. During installation, trusses 5 are set on both sides of the silo top 1. The silo top 1 is connected to the inclined chutes 3 through the trusses 5, that is, the inclined chutes 3 are suspended by the trusses 5. The trusses 5 are arranged vertically and horizontally with the inclined chutes 3 at intervals, which strengthens and supports the inclined chutes 3.

[0028] Specifically, the truss 5 includes an inclined section 51 and a vertical section 52. One end of the inclined section 51 is connected and fixed to the warehouse wall 2, and the other end of the inclined section 51 extends upward along the inclined chute 3 to the center of the warehouse top 1. The other end of the inclined section 51 is connected to the vertical section 52, which is vertically connected and fixed to the warehouse top 1 to bear the weight of the inclined chute 3.

[0029] Since there are two inclined chutes 3 and two vertical return chutes 4, the inclined chutes 3 on both sides are arranged in a "V" shape, and the tops of the inclined chutes 3 on both sides are connected. The feed inlet 12 of the silo top 1 corresponds vertically to the joint of the inclined chutes 3, and the corresponding inclined chutes 3 and vertical return chutes 4 are connected vertically. In this way, the grain enters from the feed inlet 12 of the silo top 1, then flows into the two inclined chutes 3, and then flows into their respective corresponding vertical return chutes 4 through the inclined chutes 3.

[0030] To ensure that the grain is evenly fed into the two inclined chutes 3, a vertical chute 6 is installed at the junction of the two inclined chutes 3. The vertical chute 6 is vertically arranged at the center of the silo top 1. The vertical chute 6 is a rectangular tube, and its cross-sectional dimension is smaller than the width of the inclined chutes 3. The vertical chute 6 connects upward to the feed inlet 12 of the silo top 1, and downward through the inclined chutes 3, connecting to the inverted cone-shaped buffer hopper 7.

[0031] Here, the buffer hopper 7 has an inverted square pyramid structure with open top and bottom. The cross-section of the buffer hopper 7 decreases from top to bottom. Grain enters through the feed inlet 12 on the top of the silo 1 and falls into the buffer hopper 7. The grain flows out through the buffer hopper 7 and accumulates inside, thus gradually increasing the height of the grain accumulation inside the buffer hopper 7.

[0032] To evenly guide the grain in the vertical chute 6 into the two inclined chutes 3, overflow ports 8 are symmetrically provided on both sides of the vertical chute 6, and the vertical chute 6 is connected to the inclined chutes 3 on both sides through the overflow ports 8. That is, when the grain accumulates to a certain height, the grain flows out of the vertical chute 6 through the overflow ports 8 and flows into the inclined chutes 3.

[0033] In this embodiment, the number of overflow ports 8 on each side is four rows arranged vertically at intervals. The lower row of overflow ports 8 has a larger width and contains one port, while the other three rows have smaller widths and contain two ports. As the grain in the vertical chute 6 gradually piles up, it also gradually flows out evenly through the multiple overflow ports 8.

[0034] During the flow of grain in the inclined chute 3, in order to reduce the grain flow rate and breakage rate, multiple sets of buffers 9 are installed at intervals in each side of the inclined chute 3 to slow down the grain. The buffers 9 are used to block the grain and slow it down appropriately to avoid a large impact later.

[0035] Each set of buffer components 9 includes a fixed steel pipe 10, a rotating shaft plate 11, and a buffer baffle 13. Fixed steel pipes 10 are provided on both sides of the inclined chute 3, and the two fixed steel pipes 10 are arranged in a straight line. A freely rotatable rotating shaft plate 11 is provided between the two fixed steel pipes 10. The rotating shaft plate 11 includes an integrally formed shaft body 111 and a plate body 112. The length of the shaft body 111 is greater than that of the plate body 112, and the plate body 112 extends radially into the inclined chute 3 along the shaft body 111.

[0036] An adjustable buffer baffle 13 is provided on the rotating shaft plate 11, meaning that the installation position of the buffer baffle 13 is adjustable. The buffer baffle 13 is a rubber plate that extends into the inclined chute 3. There is no gap between the bottom surface of the buffer baffle 13 and the bottom surface of the inclined chute 3. The aforementioned adjustable setting ensures that the lower end of the buffer baffle 13 is in close contact with the bottom surface of the inclined chute 3.

[0037] Specifically, during installation, the buffer baffle 13 has four adjusting vertical holes 14 on the rotating shaft plate 11. The number of adjusting vertical holes 14 varies depending on the width of the inclined chute 3. Simultaneously, four sets of mounting bolts 15 are used to connect the rotating shaft plate 11 and the buffer baffle 13. Each mounting bolt 15 corresponds to one adjusting vertical hole 14, and each mounting bolt 15 passes through the corresponding adjusting vertical hole 14.

[0038] The mounting bolt 15 includes a bolt, nut, and washer. Tightening the mounting bolt 15 secures the rotating shaft plate 11 and the buffer baffle 13. Loosening the mounting bolt 15 allows it to move up and down along the adjusting vertical hole 14, causing the buffer baffle 13 to move accordingly, thus adjusting the gap between the buffer baffle 13 and the bottom surface of the inclined chute 3. Multiple buffer baffles 13 are installed within the inclined chute 3, falling naturally under gravity. Grain flowing along the inclined chute 3 is obstructed by the buffer baffles 13 and accumulates. After accumulating a certain amount, it breaks through the buffer baffles 13, causing them to deflect and thus reducing the grain flow rate.

[0039] The principle of this invention is as follows: Grain enters the vertical chute 6 from the feed inlet 12 at the top of the silo 1, and then enters the buffer hopper 7 through the vertical chute 6. Because the bottom opening of the buffer hopper 7 is very small, the grain will accumulate in the buffer hopper 7, and the grain level will gradually rise. When the grain level reaches the overflow port 8 on the side of the vertical chute 6, it begins to overflow from the overflow port 8 to the inclined chute 3. The first row of overflow ports 8 at the bottom is insufficient to reach the rated output, so the grain level in the vertical chute 6 continues to rise. After reaching the second or even the third row of overflow ports 8, the grain is fed into the inclined chute 3 simultaneously from each row of overflow ports 8 until the feed and discharge are balanced.

[0040] Grain enters from the top and accumulates to a certain height in the buffer hopper 7 and vertical chute 6. It then exits simultaneously from the small opening at the bottom of the buffer hopper 7 and the overflow port 8 on the side wall of the vertical chute 6, entering the center of the grain silo and the two inclined chutes 3 respectively. Since the overflow ports 8 on both sides of the vertical chute 6 are symmetrically opened, the amount of grain entering the two inclined chutes 3 will be basically equal, thus solving the serious problem of uneven grain entry into the silo.

[0041] Since the grain is stored in the buffer hopper 7 and the vertical chute 6 before overflowing, the initial velocity of the grain coming out of the overflow port 8 is basically 0 m / s. After the grain enters the inclined chute 3, it will gradually accelerate due to the height difference. Buffer baffles 13 are set at certain intervals on the inclined chute 3 to block the acceleration of the grain, so that the grain enters the vertical return chute 4 with a very low initial velocity, thereby reducing the impact energy and reducing breakage.

[0042] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A buttress-type de-crushing device with uniform material distribution and buffering, comprising inclined chutes (3) symmetrically arranged on both sides of the bin top (1) and vertical return chutes (4) symmetrically arranged on both sides of the bin wall (2), wherein the corresponding inclined chutes (3) and vertical return chutes (4) are vertically connected, the tops of the inclined chutes (3) on both sides are connected, and the feed inlet (12) of the bin top (1) and the inclined chutes (3) are vertically aligned, characterized in that, At the joint of the two inclined chutes (3), a vertical chute pipe (6) is provided. The vertical chute pipe (6) communicates upward with the feed inlet (12) of the silo top (1). The vertical chute pipe (6) passes downward through the inclined chute (3) and is connected with an inverted conical buffer hopper (7). Overflow ports (8) are symmetrically arranged on both sides of the vertical chute pipe (6). The vertical chute pipe (6) is connected with the inclined chutes (3) on both sides through the overflow ports (8). In each inclined chute (3) on each side, multiple groups of buffer components (9) for slowing down the grains are arranged at intervals.

2. The buttress-type de-crushing device with uniform material distribution and buffering as described in claim 1, characterized in that, The two inclined chutes (3) on both sides are arranged in a "human" shape. Trusses (5) are provided on both sides of the silo top (1). The silo top (1) is connected with the inclined chute (3) through the truss (5). The truss (5) and the inclined chute (3) are arranged vertically and horizontally.

3. The buttress-type de-crushing device with uniform material distribution and buffering as described in claim 2, characterized in that, The truss (5) includes an inclined section (51) and a vertical section (52). One end of the inclined section (51) is fixedly connected with the silo wall (2). The other end of the inclined section (51) extends obliquely upward along the inclined chute (3) to the center of the silo top (1). The vertical section (52) is connected to the other end of the inclined section (51). The vertical section (52) is vertically upward and fixedly connected with the silo top (1).

4. The buttress-type de-crushing device with uniform material distribution and buffering as described in claim 1, characterized in that, The vertical chute pipe (6) is vertically arranged at the center position of the silo top (1). The buffer hopper (7) is open at both the top and the bottom, and the cross-section of the buffer hopper (7) decreases sequentially from top to bottom.

5. The buttress-type de-crushing device with uniform material distribution and buffering as described in claim 1, characterized in that, The cross-sectional dimension of the vertical chute pipe (6) is smaller than the width of the inclined chute (3).

6. The buttress-type de-crushing device with uniform material distribution and buffering as described in claim 5, characterized in that, The number of the overflow ports (8) on each side is multiple rows arranged at intervals vertically and horizontally. The width of the bottom row of the overflow ports (8) is large and the number is one, while the widths of the other rows of the overflow ports (8) are small and the numbers are multiple.

7. The buttress-type de-crushing device with uniform material distribution and buffering as described in claim 1, characterized in that, Each group of the buffer components (9) includes a fixed steel pipe (10), a rotating shaft plate (11) and a buffer baffle (13). Fixed steel pipes (10) are provided on both sides of the inclined chute (3). The rotating shaft plate (11) is rotatably arranged between the fixed steel pipes (10) on both sides. The buffer baffle (13) is adjustably arranged on the rotating shaft plate (11), and the buffer baffle (13) extends into the inclined chute (3).

8. The buttress-type de-crushing device with uniform material distribution and buffering as described in claim 7, characterized in that, Adjusting vertical holes (14) are formed in the rotating shaft plate (11). An installation bolt (15) is arranged between the rotating shaft plate (11) and the buffer baffle (13) for connection. The installation bolt (15) passes through the adjusting vertical hole (14), and the installation bolt (15) moves up and down along the adjusting vertical hole (14). The buffer baffle (13) is a flexible material plate.

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