Silo top distributor

Abstract

The present invention discloses a silo top distributor applied to the grain and oil field, and its structure includes a shell, an adjusting device, a plurality of feed ports and a plurality of discharge ports, the discharge ports face the entrance of the corresponding storage silo and include a central discharge port and a plurality of side discharge ports, the shell includes an upper cover plate, a middle box body and a lower cone bucket coaxially connected in sequence, the smaller opening end of the lower cone bucket is the central discharge port, the side discharge ports are evenly arranged circumferentially at positions close to the larger opening end of the lower cone bucket, and the adjusting device is used to achieve flow regulation of the central discharge port. The device directly uses the adjusting device to achieve uniform overflow operation of each discharge port, simplifies the device structure, and reduces the investment cost. At the same time, the distributor is a structure of one-point or multi-point feeding, and various structures are used to ensure that the output of the discharge ports is almost the same, which reduces the biased warehouse phenomenon of the traditional solution, improves the internal utilization rate of the storage silo, ensures the practicality of the storage silo, and reduces the classification phenomenon during the material entry process.

Description

Technical Field

[0001] The invention relates to a silo top distributor used in the grain and oil field. Background Art

[0002] Bulk materials in the grain and oil industry generally include raw materials and by-products, among which raw materials include soybeans, wheat, corn, etc., and by-products include soybean meal, rapeseed meal, etc. The corresponding bulk materials are generally a large number of unpackaged block, granular, and powdered materials piled together. The bulk materials can be stored in the form of concrete silos, steel silos, bungalow silos, etc. Among them, concrete silos are widely used due to their advantages such as large diameter-to-height ratio, long life, and long storage time.

[0003] In order to increase the storage capacity of a single silo, the top of the silo is generally flat, and the top feeding adopts multi-point feeding. The traditional feeding method of the silo is 6-point feeding in a single silo, and the feeding port is divided into 3 groups, that is, 2 feeding points in each group, and a herringbone chute is used between the two points for material distribution. However, the above feeding and storage method has the following disadvantages:

[0004] 1. Many supporting equipment:

[0005] In order to reduce the height difference of materials at the six feeding points and ensure the maximum storage capacity, the staff needs to try to ensure that the feeding amount of the six feeding points is roughly the same. Therefore, it is necessary to install three manual and three pneumatic gates under the conveying equipment. The manual gates are used to adjust the discharge amount of the three outlets, and the pneumatic gates are used to quickly select whether to implement the warehouse entry operation. In addition, each conveying equipment outlet corresponds to two vertical silo feed ports. In order to ensure the balance of the feed amount at these two points, it is necessary to install a manual gate with adjustment function on each chute branch, a total of six. In summary, a single warehouse requires a total of 12 gate valve products, the device structure is complex and the cost investment is increased.

[0006] 2. Severity of classification:

[0007] Since the bulk materials contain different particle sizes and weights, grading will occur during the feeding process. At the same time, the conveying equipment has a certain initial velocity during the conveying process, and the speed of the material also increases significantly during the descent process. Too fast speed will lead to more serious material grading.

[0008] 3. Biased warehouse:

[0009] It is difficult to distribute the materials evenly when using a herringbone chute between two points. This will cause the material heights at the six points in the bin to be different, resulting in biased bins. This will not only result in a smaller bin capacity, but will also have an adverse effect on the bin-out equipment at the bottom of the bin, reducing work efficiency. Summary of the invention

[0010] The technical problem solved by the invention is to provide a silo top distributor which can effectively improve the uniformity of materials.

[0011] The technical solution adopted by the present invention to solve its technical problem is:

[0012] A silo top distributor comprises an outer shell, an adjusting device, a plurality of feed ports and a plurality of discharge ports, wherein the adjusting device is located inside the outer shell, the discharge port faces the entrance of the corresponding storage silo and comprises a central discharge port and a plurality of side discharge ports, the outer shell comprises an upper cover plate, a middle box body and a lower cone bucket coaxially connected in sequence, the feed port is arranged on the upper cover plate, the upper cover plate is connected to one end of the middle box body, the other end of the middle box body is connected to the larger opening end of the lower cone bucket, the smaller opening end of the other end of the lower cone bucket is the central discharge port, the side discharge ports are evenly arranged along the circumference at positions close to the larger opening end of the lower cone bucket, and the adjusting device is used to realize flow regulation of the central discharge port.

[0013] After the material enters the shell from the feed port of the distributor on the top of the silo, the discharge amount of the corresponding central discharge port is adjusted by the regulating device. Since the material output during transportation is usually greater than the discharge amount of the central discharge port, the material will slowly accumulate upwards, that is, toward the feed port. When the material accumulation height reaches the position where the discharge port is set at the side, the material will flow out from the side discharge port. The device can control the material flow rate of the central discharge port through the structural adjustment of the regulating device, so that the uniformity of the discharge amount of each discharge port can be achieved, so that the material overflows and discharges evenly into the corresponding storage bin.

[0014] Furthermore, the upper cover plate, the middle box body and the lower cone bucket are adjacently connected via connecting flanges.

[0015] Furthermore, the adjusting device includes an adjusting nut, a round steel part and an adjusting plug. The adjusting nut is threadedly connected to one end of the round steel part, and the adjusting plug is connected to the other end of the round steel part. The adjusting device is coaxially arranged with the outer shell, and the adjusting plug faces the center discharge port. The adjusting nut is connected to the upper cover plate, and the upper cover plate is provided with corresponding round steel part through holes. The end of the round steel part passes through the round steel part through holes to realize connection with the adjusting nut and extend out of the upper cover plate. The round steel part can realize reciprocating motion along the axis through the threaded connection with the adjusting nut.

[0016] Furthermore, the upper cover plate is provided with a round steel sleeve for being sleeved on the round steel piece toward the central discharge port, and a plurality of sleeve supports connected at an angle are provided between the round steel sleeve and the lower cone bucket.

[0017] Furthermore, the middle box body includes a first-stage collecting bucket, a second-stage reducing pipe and a third-stage collecting chute which are sequentially connected along the axis, the larger opening of the first-stage collecting bucket faces the upper cover plate and realizes a circumferential connection between the edge and the inner wall of the middle box body, the smaller opening of the first-stage collecting bucket is connected to one end of the second-stage reducing pipe, the other end of the second-stage reducing pipe is connected to one end of the third-stage collecting chute, the other end of the third-stage collecting chute faces the central discharge port, and the diameter of the second-stage reducing pipe gradually decreases in the direction toward the third-stage collecting chute.

[0018] Furthermore, the second-stage reducer is provided with a variable sleeve end toward the third-stage collecting chute, the outer diameter of the variable sleeve end matches the inner diameter of the third-stage collecting chute, the end of the third-stage collecting chute is sheathed on the variable sleeve end, the third-stage collecting chute and the second-stage reducer are connected by a connecting stud arranged in a direction parallel to the axis, the connecting stud includes a stud and a nut, the end of the third-stage collecting chute toward the second-stage reducer and the end of the variable sleeve end toward the first-stage collecting bucket are respectively provided with stud through holes for studs to pass through in sequence, the nut is threadedly connected to the end of the stud passing through the stud through hole, and the third-stage collecting chute and the second-stage reducer realize relative reciprocating motion along the axis through the threaded rotation operation of the nut. .

[0019] Furthermore, a plurality of collecting bucket supports are arranged between the first-stage collecting bucket and the middle box body, one end of the collecting bucket support is connected to the outer surface of the first-stage collecting bucket facing the lower cone bucket, and the other end of the collecting bucket support is connected to the inner surface of the middle box body, and the collecting bucket supports are evenly distributed circumferentially along the central axis of the middle box body, and the collecting bucket support, the first-stage collecting bucket and the middle box body form an acute-angled triangular cross-section.

[0020] Furthermore, the end of the third-stage collecting chute is connected with a soft connection with a central opening, and the soft connection is made of rubber material.

[0021] Furthermore, the collecting bucket edge, the reducing pipe and the collecting chute are provided with a plurality of holes along the circumferential direction.

[0022] Furthermore, the middle box body is provided with an openable inspection door facing outwards.

[0023] The beneficial effects of the present invention are:

[0024] 1. The device directly uses the regulating device to achieve uniform overflow operation of each discharge port, which simplifies the device structure and reduces the investment cost. At the same time, the distributor is a one-point or multi-point feeding structure. Through various structures, the output of the discharge ports is almost the same, which reduces the biased warehouse phenomenon of the traditional solution, improves the internal utilization rate of the storage warehouse, ensures the practicality of the storage warehouse, and reduces the classification phenomenon of materials in the warehouse feeding process;

[0025] 2. The flange connection between the upper cover, the middle box and the lower cone bucket improves the connection efficiency of each structure, facilitates the transportation and installation of the device, and is easy to realize the subsequent maintenance and replacement of each structure, reducing the application cost;

[0026] 3. The setting of the adjusting nut, round steel part and adjusting plug of the adjusting device has a simple structure and simple operation, and is easy to achieve a stable control effect, while reducing costs and improving the subsequent maintenance and installation efficiency of the structure;

[0027] 4. The setting of the sleeve, on the one hand, avoids the direct impact and wear of the material on the round steel parts, ensuring the stability of the working structure of the round steel parts. On the other hand, through the fixing effect at both ends, the stability of the position structure of the round steel parts is achieved, providing a guarantee for the stable working process of the device;

[0028] 5. The multi-level setting between the middle boxes ensures the vertical and low-speed feeding of materials, further slowing down the grading phenomenon of materials entering the warehouse;

[0029] 6. The connecting screw setting of the second-stage reducer and the third-stage collecting chute improves the application flexibility of the device, ensures the transmission stability of different materials, and provides a guarantee for the subsequent discharge quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the material distributor of the present invention;

[0031] Figure 2 It is a schematic diagram of the connection structure of the outer shell of the distributor of the present invention, the first-stage collecting bucket, the second-stage reducing pipe and the third-stage collecting chute;

[0032] Figure 3 for Figure 2 A schematic diagram of the domain structure of the middle A region;

[0033] Figure 4 A bottom view of the upper cover plate of the silo top distributor of the present invention;

[0034] Figure 5 It is a top view of the upper cover plate of the silo top distributor of the present invention;

[0035] Figure 6 It is a bottom view of the middle box of the silo top distributor of the present invention;

[0036] Figure 7 A top view of the lower cone bucket of the silo top distributor of the present invention;

[0037] Marked in the figure are: upper cover 1, feed port 11, upper cover reinforcement 12, quick opening door 13, middle box 2, first-stage collecting bucket 21, collecting bucket support 211, second-stage reducer 22, variable sleeve end 221, third-stage collecting chute 23, soft connection 24, hole 25, inspection door 26, connecting screw 27, stud 271, nut 272, connecting extension end 28, lower cone bucket 3, side discharge port 31, center discharge port 32, adjusting nut 4, round steel part 5, adjusting plug 6, round steel part sleeve 7, sleeve support 71, trestle plane 8. DETAILED DESCRIPTION

[0038] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] The shell structure of the distributor includes an upper cover plate 1, a middle box body 2 and a lower cone bucket 3 which are coaxially connected in sequence. The upper cover plate 1, the middle box body 2 and the lower cone bucket 3 are connected by connecting flanges, that is, the shell structure is set as a split structure, which is convenient for subsequent structural transportation and storage, and is also easy for subsequent separate maintenance and replacement operations of each structure, reducing production costs. The flange connection method is simple and easy to implement, ensuring connection and disassembly efficiency. Figure 2 As shown, the middle box body 2 is a cylindrical structure, and the lower cone bucket 3 is an inverted cone structure, so the structure of the upper cover plate 1 is as follows: Figure 4 The circular structure is shown to be consistent with the end surface of the middle box body 2. In order to ensure the structural stability of the upper cover plate 1, a plurality of cross metal strips are welded on its surface facing the middle box body 2 as the upper cover plate reinforcement 12. At the same time, the feed port 11 of the distributor is set on the upper cover plate 1. Figure 5 The middle upper cover plate 1 is provided with two feed ports 11 as subsequent feed operation entrances, and to ensure the uniformity of subsequent material transportation, the feed ports 11 are evenly arranged on the upper cover plate 1 and have the same rectangular structure, and two holes 25 are arranged between the two feed ports 11. The number, structure and position of the feed ports 11 can be set according to actual conditions, and the middle box body 2 can also be set to a rectangular structure or other shapes.

[0040] Middle box 2 Figure 2The structure shown includes a first-stage collecting bucket 21, a second-stage reducing pipe 22 and a third-stage collecting chute 23 which are sequentially connected along the axis. The first-stage collecting bucket 21 is an inverted conical structure, and the larger opening diameter is the same as the inner diameter of the middle box 2. The larger opening of the first-stage collecting bucket 21 faces the upper cover plate 1 and is circumferentially connected to the inner wall of the middle box 2. At this time, when the material enters the structure of the middle box 2 from the feed port 11, it can completely fall into the first-stage collecting bucket 21. The other end of the first-stage collecting bucket 2 is a smaller opening and is connected to one end of the second-stage reducing pipe 22. This connection method can be welded into an integrated structure. The other end of the second-stage reducing pipe 22 is screw-connected to one end of the third-stage collecting chute 23. The setting angle of the first-stage collecting bucket 21 can be set at different angles according to different materials to reduce the material speed and collect the material to the center of the distributor. As the material falls, the speed increases, and the cross-sectional area required for the same output becomes smaller. Therefore, the second-stage reducer 22 uses a pipe that changes from large to small for material collection, that is, the diameter connected to the first-stage collection bucket 21 is larger than the diameter connected to the third-stage collection chute 23. The end of the third-stage collection chute 23 is covered with the end of the second-stage reducer 22, and the connection method is as follows: Figure 3 As shown. The sleeve end of the second-stage reducer 22 forms a variable sleeve end 221 that is consistent with the inner diameter of the third-stage collecting chute 23. Since the third-stage collecting chute 23 in this embodiment is configured as a cylindrical structure with consistent upper and lower diameters, the corresponding variable sleeve end is also a cylindrical structure with consistent diameters. The third-stage collecting chute 23 has an end portion toward the second-stage reducer 22, and a connecting extension plate 28 is provided in a direction perpendicular to the axis. The connecting extension plate 28 can be configured as a flange structure in an annular shape, and four screw through holes are provided in a direction parallel to the axis. The end portion of the variable sleeve end 221 toward the first-stage collecting bucket 21 is also provided with a connecting extension plate 28 that is the same as the first-stage collecting bucket 21. As shown Figure 3As shown, the stud of the connecting screw 27 is sequentially inserted into the screw through holes of the third-stage collecting chute 23 and the second-stage reducer 22, and is now threadedly connected to the nut 272 through the end of the screw through hole at the second-stage reducer 22. In the selection process of the connecting screw 27, it should be ensured that the length of the stud 271 is greater than the length of the variable sleeve end 221, and the length of the external thread on the stud 271 can be consistent with the length of the variable sleeve end 221. At this time, the nut 272 can move along the stud 271 to achieve reciprocating motion. When the nut 272 moves along the stud 271 toward the third-stage collecting chute 23, the distance between the corresponding connecting extension plates 28 is gradually reduced, and the third-stage collecting chute 23 is also moved toward the second-stage reducer 22, and the volume of the variable sleeve end 221 located in the third-stage collecting chute 23 is also gradually increased. When the variable sleeve end 221 is completely sleeved in the third-level collecting chute 23, the corresponding structural component stops moving under the relative blocking force of the corresponding connecting extension plate 28. When the nut 272 moves in the reverse direction, the corresponding third-level collecting chute 23 also moves in the reverse direction, and the variable sleeve end 221 sleeved in the third-level collecting chute 23 gradually moves out, thereby realizing the adjustment of the upper and lower positions of the third-level collecting chute 23 relative to the second-level reducer 22. During the movement, attention should be paid to the continuity of the connection between the second-level reducer 22 and the third-level collecting chute 23 to avoid leakage of materials from the connection gap. Four adjusting screws 27 are used between the third-level collecting chute 23 and the second-level reducer 22 to adjust the upper and lower positions of the third-level collecting chute 23. When the feed output is small, the third-level collecting chute 23 is adjusted downward to prevent the material from being dispersed in advance and maintain the verticality of the material, thereby realizing uniform discharge of the side discharge port 31. The number and position of the above-mentioned adjusting screws 27 can be configured according to actual conditions, and it should be ensured that the axis of the stud 271 is parallel to the moving direction of the third-stage collecting chute 23.

[0041] In order to ensure the use effect of the distributor, a rubber soft connection 24 with a middle opening is connected to the bottom of the third-level collecting chute 21. When the feed amount increases, the material can be squeezed out from the opening of the soft connection 24, thereby ensuring the discharge speed and the uniform configuration of the subsequent materials. The first-level collecting hopper 21, the second-level reducer 22 and the third-level collecting chute 23 are circumferentially provided with a plurality of holes 25. In this embodiment, four holes can be circumferentially opened on the third-level collecting chute 23, two holes 25 are set at the second-level reducer 22, and two holes 25 are set at the first-level collecting hopper 21. The setting position of the above-mentioned holes 25 should avoid the direct impact point of the material. When the feed output continues to increase, the material accumulates upward and is squeezed out from the four holes 25 on the third-level collecting chute 23 into the lower cone bucket 3; when the feed output continues to increase, the material continues to accumulate and reaches the holes 25 at the second-level reducer 22, and at this time, the material is also squeezed out from the two holes 25 at the second-level reducer 22 into the lower cone bucket 3; when the material output continues to increase, the material accumulates at the holes 25 at the first-level collecting hopper 21, and at this time, the material is also squeezed out from the holes 25 there into the lower cone bucket 3. Since two holes 25 are also provided at the upper cover plate 1, when the material continues to accumulate at the upper cover plate 1, the material also overflows from the two holes 25 there, thereby providing a reminder to the staff, and at this time, the staff can timely reduce and adjust the feed flow rate of the feed port 11. The number and position of the above-mentioned holes 25 can be adjusted according to the actual application environment to adjust the opening structure and number, and the holes 25 should be avoided from being located at the direct impact point of the material. The outlet size of the internal collecting structure of the above distributor is designed according to a specific feed output, usually according to the most commonly used intermediate output value.

[0042] In order to ensure the stability of the hierarchical structure in the middle box 2, the first-stage collecting bucket 21 and the middle box 2 are Figure 4 As shown, four collecting bucket supports 211 are arranged in the circumferential direction. The collecting bucket support 211 is a metal rod, one end of which is connected to the outer surface of the first-stage collecting bucket 21 facing the lower cone bucket 3, and the other end is connected to the inner surface of the middle box 2. To ensure structural stability, the collecting bucket support 211, the first-stage collecting bucket 21 and the middle box 2 form an acute triangle cross-section, that is, a stable triangular support structure. At the same time, the middle box 2 is provided with an openable inspection door 26 facing outward to ensure that the staff can enter and exit for maintenance operations.

[0043] The adjusting device in the distributor includes an adjusting nut 4, a round steel piece 5, an adjusting plug 6 and a sleeve 7 which are coaxially arranged, and the adjusting device and the housing are coaxially arranged. The adjusting nut 4 is welded to the upper surface of the upper cover plate 1 away from the middle box body 2, and one end of the sleeve 7 is welded to the lower surface of the upper cover plate 1 facing the middle box body 2. Figure 1As shown, it passes through the first-stage collecting bucket 21, the second-stage reducing pipe 22, the third-stage collecting chute 23 and the flexible connection 24 in sequence and extends toward the middle discharge port 32. To ensure the structural stability, the round steel sleeve 7 and the lower cone bucket 3 are as shown in FIG. Figure 7 As shown, four sleeve supports 71 connected at an angle are provided, and the arrangement method can be the same as the arrangement method of the collecting bucket support 211. The number and position of the sleeve supports 71 can be set according to the actual application. The round steel member 5 is sequentially passed through the adjusting nut 4 and the round steel sleeve 7, and the adjusting plug 6 is welded at the end of the round steel sleeve 7 extending toward the middle discharge port 32. The structure of the adjusting plug 6 should be set according to the shape of the middle discharge port 32. The end of the round steel member 5 is threadedly connected to the adjusting nut 6, and the round steel member 5 can realize the reciprocating motion of the round steel member 5 along the axis during the rotating threaded connection of the adjusting nut 6, thereby driving the relative distance between the adjusting plug 6 and the middle discharge port 32, and realizing the flow adjustment operation of the middle discharge port 32. The length of the round steel member 5 should meet the distance requirement of the flow adjustment, and the relative distance setting of the sleeve 7 and the middle discharge port 32 should avoid affecting the working process of the adjustment device. In addition to the above setting method, the adjusting nut 4 can also be set on the fixed trestle plane 8, and the upper cover plate 1 is provided with a quick-opening door 3 on the upper surface away from the middle box 2, so as to facilitate the rapid inspection and maintenance of the structure. The structure of the above adjustment device can also adopt a plurality of adjustment flap mechanisms at the bottom of the distributor, and the above adjustment form can be pneumatic, electric or automatic according to actual needs.

[0044] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The top distributor of the silo is characterized by: The invention comprises a shell, an adjusting device, a plurality of feed ports (11) and a discharge port, wherein the adjusting device is located inside the shell, the discharge port comprises a central discharge port (32) and a plurality of side discharge ports (31), the shell comprises an upper cover plate (1), a middle box body (2) and a lower cone bucket (3) which are coaxially connected in sequence, the feed port (11) is arranged on the upper cover plate (1), the upper cover plate (1) is connected to one end of the middle box body (2), the other end of the middle box body (2) is connected to the larger opening end of the lower cone bucket (3), the smaller opening end of the other end of the lower cone bucket (3) is the central discharge port (32), the side discharge ports (31) are evenly arranged along the circumference at positions close to the larger opening end of the lower cone bucket (3), and the adjusting device is arranged inside the shell, wherein ... The device is used to achieve flow regulation of a central discharge port (32), wherein the upper cover plate (1), the middle box body (2) and the lower cone bucket (3) are adjacently connected via a connecting flange, wherein the middle box body (2) comprises a first-stage collecting bucket (21), a second-stage reducing pipe (22) and a third-stage collecting chute (23) which are sequentially connected along an axis, wherein the larger opening of the first-stage collecting bucket (21) faces the upper cover plate (1) and achieves circumferential connection of the edge with the inner wall of the middle box body, the smaller opening of the first-stage collecting bucket (21) is connected to one end of the second-stage reducing pipe (22), the other end of the second-stage reducing pipe (22) is connected to one end of the third-stage collecting chute (23), and the third-stage collecting chute (23) is connected to the inner wall of the middle box body. The other end of the second-stage reducer (22) faces the central discharge port (32); the diameter of the second-stage reducer (22) gradually decreases in a direction toward the third-stage collecting chute (23); the second-stage reducer (22) is provided with a variable sleeve end (221) toward the third-stage collecting chute (23); the outer diameter of the variable sleeve end (221) matches the inner diameter of the third-stage collecting chute (23); the end of the third-stage collecting chute (23) is sleeved on the variable sleeve end (221); the third-stage collecting chute (23) and the second-stage reducer (22) are connected by a connecting screw (27) arranged in a direction parallel to the axis; the connecting screw (27) comprises a stud (271) and a nut (272); The end of the third-stage collecting chute (23) facing the second-stage reducer (22) and the end of the variable sleeve end facing the first-stage collecting bucket (21) are respectively provided with screw holes for the studs (271) to pass through in sequence. The nut (272) is threadedly connected to the end of the stud (271) passing through the screw holes. The third-stage collecting chute (23) and the second-stage reducer (22) realize relative reciprocating motion along the axis through the threaded rotation operation of the nut (272). The first-stage collecting bucket (21), the second-stage reducer (22) and the third-stage collecting chute (23) are provided with a plurality of holes (25) along the circumferential direction, and two holes (25) are also provided at the upper cover plate (1).

2. The silo top distributor according to claim 1, characterized in that: The adjusting device comprises an adjusting nut (4), a round steel piece (5) and an adjusting plug (6); the adjusting nut (4) is threadedly connected to one end of the round steel piece (5); the adjusting plug (6) is connected to the other end of the round steel piece (5); the adjusting device is coaxially arranged with the housing; the adjusting plug (6) faces the central discharge port (32); the adjusting nut (4) is connected to the upper cover plate (1); the upper cover plate (1) is provided with a corresponding round steel piece through hole; the end of the round steel piece (5) passes through the round steel piece through hole to achieve connection with the adjusting nut (4) and extends out of the upper cover plate (1); the round steel piece (5) can achieve reciprocating motion along the axis through the threaded connection with the adjusting nut (4).

3. The silo top distributor according to claim 2, characterized in that: The upper cover plate (1) is provided with a round steel sleeve (7) for being fitted onto the round steel member (5) towards the central discharge port (32), and a plurality of sleeve supports (71) connected at an angle are provided between the round steel sleeve (7) and the lower cone bucket (3).

4. The silo top distributor according to claim 1, characterized in that: A plurality of collecting bucket supports (211) are arranged between the first-stage collecting bucket (21) and the middle box body (2); one end of the collecting bucket support (211) is connected to the outer surface of the first-stage collecting bucket (21) facing the lower cone bucket (3); the other end of the collecting bucket support (211) is connected to the inner surface of the middle box body (2); the collecting bucket supports (211) are evenly distributed circumferentially along the central axis of the middle box body (2); and the collecting bucket support (211), the first-stage collecting bucket (21) and the middle box body (2) form an acute-angled triangular cross-section.

5. The silo top distributor according to claim 1, characterized in that: The end of the third-stage collecting chute (23) is connected with a soft connection (24) with a central opening, and the soft connection (24) is made of rubber material.

6. The silo top distributor according to claim 1, characterized in that: The middle box body (2) is provided with an openable inspection door (26) facing outward.

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