Gravity self-unloading type lifting multi-point material distribution device system of squat silo
The gravity self-unloading lifting multi-point feeding device system solves the problem of automatic grain grading and crushing during the shallow round silo loading process, achieving uniform grain distribution and improved safety, while reducing installation and operating costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-12
- Publication Date
- 2026-03-27
AI Technical Summary
Shallow round silos present problems with automatic grain grading and breakage during the grain loading process. Existing equipment suffers from drawbacks such as inconvenient installation, high cost, and significant safety hazards.
The gravity self-unloading lifting multi-point feeding device system includes an upper buffer hopper, a middle telescopic cone hopper, a lower buffer bin, a counterweight flap valve device, a feed distributor, a triangular lifting platform, a feeding trough, and a winch. It achieves uniform distribution and multi-point feeding of grain through gravity, avoiding the need for installing pneumatic equipment and using compressed air at high altitudes.
It effectively avoids automatic grading and breakage of grain during the warehousing process, achieves uniform grain dispersion and improves safety, reduces installation and operating costs, and avoids the risk of dust explosion.
Smart Images
Figure CN121735006A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a shallow silo gravity self-unloading lifting multi-point distribution device system, belonging to the technical field of grain conveying and storage. BACKGROUND
[0002] Shallow silos are the main component of grain silos. The built and planned grain silos are basically dominated by shallow silos. At present, the center feeding method is basically adopted for shallow silos. Due to the high distance between the center discharge port of the shallow silo and the bottom of the silo, which is about 30 meters high, it is inevitable to cause the automatic classification of grain (grain freely falls from top to bottom, and the size, weight, shape, impurities, etc. of the particles form natural stratification and classification) and crushing problems, which seriously affects the quality of grain and is not conducive to the safe storage of grain. At present, a series of anti-classification, crushing reduction devices and equipment have appeared in China, such as wall-attached folding plate anti-crushing device, pressure door type umbrella-shaped multi-point distributor, valve control type anti-classification device, numerical control type rotary grain distributor, multi-functional center pressure reduction pipe, and top suspension motor-driven rotary distributor. Although the above devices and equipment can solve the problems of automatic classification and crushing of grain to some extent, they all have certain defects, such as unsatisfactory effect, inability to consider anti-classification and crushing reduction, or difficult maintenance, or safety hazards such as large dust in the silo, which belongs to the dust explosion danger zone. Therefore, the above technical problems still need to be solved.
[0003] Patent application No. CN202410650988X (shallow silo pneumatic lifting rotary distribution device and operation method) is composed of a telescopic grain channel composed of multiple telescopic conical barrels, a pneumatic lifting system, a pneumatic valve, and a pneumatic rotary distribution tank. Although the patent scheme can solve the technical problems of automatic classification and crushing of grain during the process of entering the silo, it is not convenient to install the pneumatic winch at a high place; and the pneumatic valve and the pneumatic rotary distribution tank need to introduce compressed air as the driving power, which requires a large amount of compressed air and has high cost. SUMMARY
[0004] The present application provides a shallow silo gravity self-unloading lifting multi-point distribution device system, which aims to solve the technical problems of automatic classification and crushing of grain during the process of entering the silo, and can overcome the technical problems of the prior art, such as the need to install a pneumatic winch at the top of the silo or outside the silo, the inconvenience of installing the pneumatic winch at a high place, and the need to introduce compressed air as the driving power for the pneumatic valve and the pneumatic rotary distribution tank, which requires a large amount of compressed air and has high cost.
[0005] The technical scheme of the present application is implemented as follows:
[0006] A shallow circular silo gravity self-unloading lifting multi-point material distribution device system, comprising from top to bottom: an upper buffer hopper, a fixed platform, a middle telescopic cone hopper, a lower buffer silo, a counterweight flap valve device, a lower distributor, a triangular lifting platform, a material distribution trough, a winch, and a wire rope; characterized in that the lower distributor 105 includes a conical collecting hopper 1051, an annular material stabilizing hopper 1052, a conical multi-groove distributor 1053, and a conical distributing core 1054;
[0007] The lower distributor 105 consists of a conical collecting hopper, an annular stabilizing hopper, and a conical multi-groove distributor connected sequentially from top to bottom to form a closed shell with internal communication. The conical collecting hopper is a conical funnel structure with a larger upper opening and a smaller lower opening, and its lower opening is connected to the annular stabilizing hopper. The annular stabilizing hopper is a cylindrical hollow structure. The bottom of the annular stabilizing hopper is connected to the conical multi-groove distributor, which is a conical funnel structure with a larger upper opening and a smaller lower opening, and its bottom is closed. The conical distributing core 1054 is vertically placed in the center of the lower distributor 105. The conical distributing core is a cone with its upper part pointing upwards. The structure is a closed cylindrical body with a smooth, integral connection to a cylinder at the bottom. The tip of the conical distributing core reaches below the lower opening of the conical collecting hopper 1051. The annular cavity between the annular stabilizing hopper and the conical distributing core forms a grain channel. The bottom end of the conical distributing core is connected to the bottom end of the conical multi-groove distributor. The conical distributing core divides the container of the conical multi-groove distributor into a conical annular cavity. The conical annular cavity is divided into multiple equal-volume conical bucket-type small hoppers by multiple symmetrically arranged radial vertical partitions 10532. A distributing outlet 10531 is provided on the bottom side wall of each small hopper.
[0008] The upper end of the lower feeder 105 is connected to the counterweight flap valve device 104. The counterweight flap valve device includes an upper feed hopper, a flap, a lower discharge hopper, a counterweight, and a lever mechanism. The lower discharge hopper is connected to the flange of the conical collection and distribution hopper 1051.
[0009] The upper end of the counterweight flap valve device 104 is connected to the lower buffer chamber 103, and the upper feed chamber is connected to the lower buffer chamber by a flange.
[0010] The upper buffer hopper 101, the middle telescopic cone hopper 102, the lower buffer bin 103, the counterweight flap valve device 104, and the lower distributor 105 are sequentially connected to form a grain inlet channel. The middle telescopic cone hopper 102 is composed of multiple bottomless cones connected in a set to form a telescopic grain channel that can be telescopically stacked. The upper cone of the middle telescopic cone hopper is connected to the discharge port of the upper buffer hopper and fixed on the upper fixed platform. The side wall of the bottom cone of the middle telescopic cone hopper is engaged with the inlet of the lower buffer bin. The upper buffer hopper is connected to the upper grain inlet 201 and is attached to the bin wall.
[0011] Preferably, there are 6 to 12 small material bins; each material distribution outlet 10531 on the bottom side wall of the small material bin is connected to a material distribution trough 106 and reinforced by a steel wire rope connected to a triangular lifting platform 301; the material distribution trough has a rectangular or circular tube in the front section connected to the material distribution outlet 10531 and a long trough with an open top in the rear section, and the long trough is a rectangular or semi-circular long trough.
[0012] Preferably, the conical multi-groove distributor is fixed on a triangular lifting platform 301. The triangular lifting platform is fixedly connected to steel wire ropes 302 at its three corners and connected to a winch 303 outside the warehouse through a pulley block to control the lifting and lowering of the conical multi-groove distributor and the material distribution trough.
[0013] Preferably, the steel wire ropes 302 at the three corners of the triangular lifting platform are connected to a winch 303 that synchronously drives the three steel wire ropes through pulley blocks, so as to synchronously lift the triangular lifting platform.
[0014] Preferably, the wire rope 302 extends from the wire rope sealing pipe 401 installed inside the grain silo wall to the outside of the silo and is connected to the winch 303 installed on the ground outside the silo.
[0015] Preferably, the wire rope sealing tube 401 is a composite structure of a steel pipe and a wear-resistant soft rubber tube, including a steel pipe and a wear-resistant soft rubber tube bonded to the inner wall of the steel pipe. The steel pipe and the wear-resistant soft rubber tube are of equal length. The tube hole of the wear-resistant soft rubber tube passes through the wire rope and maintains a movable fit. The wire rope passes through the wear-resistant soft rubber tube to the outside of the warehouse.
[0016] Preferably, 12 fabric troughs are provided corresponding to the material dispensing outlets.
[0017] Preferably, the upper buffer hopper 101 has multiple overflow holes 1011 evenly distributed around the upper side wall.
[0018] Preferably, the upper buffer hopper, telescopic cone hopper, counterweight flap valve, and cone-shaped material distribution core are all lined with a shock-absorbing buffer layer, and the material of the shock-absorbing buffer layer is rubber or polyurethane.
[0019] Preferably, the multiple cones 1021 of the telescopic grain channel are hollow, vertically connected, and wider at the top than at the bottom. The multiple cones can be nested and stacked or connected. Each cone and the outer wall of the lower buffer chamber 103 are symmetrically provided with three fixing collars 1022. After three load-bearing ropes 1023 are symmetrically provided on the outside of the telescopic grain channel and fixedly connected to the fixed platform, each load-bearing rope passes through a fixing collar of the top cone and is then fastened to bear the load. Three connecting ropes 1024 are symmetrically provided on the side wall of the telescopic grain channel. Each connecting rope is fastened to the fixing collar on the same side of the cone from top to bottom to limit the connection distance between the cones. The end of the connecting rope on the bottom cone is connected and fixed to the fixing collar on the lower buffer chamber 103.
[0020] The beneficial effects of this invention are:
[0021] This invention fundamentally and effectively avoids the occurrence of uneven grain distribution in shallow round silos, as well as the technical problems of automatic grain grading and crushing during the grain loading process. This invention has the following advantages:
[0022] (1) The discharge distance from the ground can be adjusted up and down as needed to avoid grain breakage and grading due to excessive height difference;
[0023] (2) The conical multi-groove distributor has uniform physical distribution and good effect, avoiding uneven load caused by uneven grain distribution;
[0024] (3) The physical multi-point feeding of the feeding trough makes the grain in the warehouse more accurate and uniform in distribution;
[0025] (4) After the grain is stored, the grain surface fluctuates little, which makes it easier to level the grain surface in the later stage.
[0026] (5) The top overflow trough is safe and reliable, effectively and timely diverts water, and avoids the risk of overflow.
[0027] (6) The heavy hammer flap valve device realizes natural unloading by gravity, avoiding the introduction of compressed air.
[0028] (7) The installation of a winch and wire rope sealing pipe on the ground outside the silo achieves the sealing of the moving wire rope, which avoids the occurrence of thermal bridging without compromising the airtightness of the shallow circular silo. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the process of stopping unloading and feeding grain when the central telescopic cone bucket is in the retracted state.
[0030] Figure 2 This is a schematic diagram of the overall structure of the present invention with the central telescopic cone bucket in the unfolded state for unloading and feeding grain.
[0031] Figure 3Figure 1 A magnified view of the area below the lower buffer compartment.
[0032] Figure 4 yes Figure 2 A magnified view of the area below the lower buffer compartment.
[0033] Figure 5 The wire rope sealing tube of the present invention is installed in Figure 1 A magnified schematic diagram of the structure at position A.
[0034] Figure 6 This is a three-dimensional structural diagram of the feeder of the present invention.
[0035] Figure 7 This is a front view schematic diagram of the lower feeder structure of the present invention.
[0036] Figure 8 yes Figure 7 A partial sectional view of plane AA.
[0037] Figure 9 yes Figure 7 A schematic diagram of direction C.
[0038] Figure 10 yes Figure 7 A schematic diagram of direction B.
[0039] Figure 11 yes Figure 7 A schematic diagram of direction D.
[0040] Figure 12 This is a schematic diagram showing the distribution of the 12 fabric troughs.
[0041] Figure 13 This is a schematic diagram of a fabric trough structure.
[0042] Figure 14 This is a schematic diagram of a triangular lifting platform.
[0043] Explanation of component numbers in the diagram:
[0044] Upper buffer hopper 101, overflow hole 1011, fixed platform 1012, middle telescopic cone hopper 102, cone barrel 1021, lower buffer bin 103, counterweight flap valve device 104, upper feed bin 1041, flap 1042, lower discharge bin 1043, counterweight 1044, lower distributor 105, conical collecting hopper 1051, annular material stabilizing hopper 1052, conical multi-groove distributor 1053, material distribution outlet 10531, partition 10532, conical material distribution core 1054; material distribution trough 106, circular tube 1061, long trough 1062.
[0045] Grain inlet 201;
[0046] Triangular lifting platform 301, wire rope 302, winch 303, wire rope 304;
[0047] 401 steel wire rope sealing tube. Detailed Implementation
[0048] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0049] See Figures 1-4 As shown, the present invention discloses a shallow circular silo gravity self-unloading lifting multi-point material distribution device system, comprising, from top to bottom: an upper buffer hopper 101, a fixed platform 1012, a middle telescopic cone hopper 102, a lower buffer silo 103, a counterweight flap valve device 104, a lower distributor 105, a triangular lifting platform 301, a material distribution trough 106, a winch 303, and a wire rope 302; wherein, the lower distributor 105 includes a conical collecting hopper 1051, an annular material stabilizing hopper 1052, a conical multi-groove distributor 1053, and a conical distributing core 1054;
[0050] The lower distributor 105 consists of several parts connected sequentially from top to bottom: a conical collecting hopper, an annular stabilizing hopper, and a conical multi-groove distributor, forming a closed shell with internal communication. The conical collecting hopper 1051 is a conical funnel structure with a larger upper opening and a smaller lower opening, and its lower opening is connected to the annular stabilizing hopper. The annular stabilizing hopper 1052 is a cylindrical hollow structure. The bottom of the annular stabilizing hopper is connected to the conical multi-groove distributor 1053, which is a conical funnel structure with a larger upper opening and a smaller lower opening, and its bottom is closed. The lower distributor... The conical distributing core is vertically positioned in the center; the conical distributing core 1054 is a closed cylindrical structure with an upward-pointing cone at the top and a smooth, integrally connected cylinder at the bottom; the tip of the conical distributing core reaches below the lower opening of the conical collecting hopper 1051, distributing the incoming grain; the annular cavity between the annular stabilizing hopper and the conical distributing core forms a grain channel; the bottom end of the conical distributing core is connected to the bottom end of the conical multi-groove distributor; the conical distributing core divides the container of the conical multi-groove distributor 1053 into a conical annular cavity; see also Figure 10 As shown, the conical annular cavity is divided into multiple equal-volume conical hopper-type small material bins by symmetrically arranged radial vertical partitions 10532; a material outlet 10531 is provided on the bottom side wall of each small material bin; see also Figures 6-11 As shown;
[0051] The upper end of the lower feeder 105 is connected to the counterweight flap valve device 104. The counterweight flap valve device includes an upper feed hopper 1041, a flap 1042, a lower discharge hopper 1043, a counterweight 1044, and a lever mechanism. The lower discharge hopper is connected to the flange of the conical collection and distribution hopper 1051.
[0052] The upper end of the counterweight flap valve device 104 is connected to the lower buffer chamber 103, and the upper feed chamber is connected to the lower buffer chamber by a flange.
[0053] The upper buffer hopper 101, the middle telescopic cone hopper 102, the lower buffer bin 103, the counterweight flap valve device 104, and the lower distributor 105 are sequentially connected to form a grain inlet channel. The middle telescopic cone hopper 102 consists of multiple bottomless cones connected in a set to form a telescopic grain channel that can be telescopically stacked. The upper cone of the middle telescopic cone hopper is connected to the discharge port of the upper buffer hopper and fixed on the upper fixed platform 1012. The fixed platform 1012 has a through hole so that the upper cone of the middle telescopic cone hopper is connected to the discharge port of the upper buffer hopper. The side wall of the cone at the bottom of the middle telescopic cone hopper is engaged in the inlet of the lower buffer bin to facilitate the stacking of the cones. The upper buffer hopper is connected to the upper grain inlet 201 and is connected to the bin wall.
[0054] See Figure 10 , 12 As shown in Figure 13, there are 6 or 12 small material bins. Each material distribution outlet 10531 on the bottom side wall of the small material bin is connected to a material distribution trough 106 and reinforced by a steel wire rope 304 connected to a triangular lifting platform 301. The material distribution trough has a rectangular or circular tube 1061 at the front end connected to the material distribution outlet 10531 and a long trough 1062 with an open top at the rear end. The long trough is a rectangular or semi-circular long trough.
[0055] The conical multi-groove distributor is fixed to the triangular lifting platform 301. The side wall of the conical collecting hopper 1051 is embedded in the through hole on the platform, or the side wall is connected to the platform flange. The lower part of the conical collecting hopper 1051 of the conical multi-groove distributor is below the through hole on the triangular lifting platform 301. Steel wire ropes 302 are fixedly connected to the three corners of the triangular lifting platform. See [reference needed]. Figure 14 As shown, the triangular lifting platform is connected to a winch 303 outside the bin via a pulley system to control the lifting and lowering of the conical multi-groove material distributor and the material distribution trough. The triangular lifting platform can be an integrated structure or a split-type connection structure.
[0056] Preferably, the steel wire ropes 302 at the three corners of the triangular lifting platform are connected to a winch 303 (three-compartment winch) that synchronously drives the three steel wire ropes through pulley blocks, so as to synchronously lift the triangular lifting platform.
[0057] The wire rope 302 extends from the wire rope sealing pipe installed inside the grain silo wall to the outside of the silo, and connects to the winch 303 installed on the ground outside the silo. (See attached image) Figure 1 , 5 As shown.
[0058] SeeFigure 5 As shown, the wire rope sealing tube 401 is a composite structure of a steel pipe and a wear-resistant soft rubber tube, including a steel pipe and a wear-resistant soft rubber tube bonded integrally to the inner wall of the steel pipe. The steel pipe and the wear-resistant soft rubber tube are of equal length. A wire rope 302 passes through the tube hole of the wear-resistant soft rubber tube and maintains a movable fit. The wire rope passes through the wear-resistant soft rubber tube to the outside of the silo. The wire rope sealing tube has the function of avoiding thermal bridging without compromising the airtightness of the shallow circular silo.
[0059] As needed, up to 12 of the fabric troughs and the material dispensing outlets can be correspondingly provided, see [reference]. Figure 12 The distribution structure shown.
[0060] Multiple overflow holes 1011 are evenly distributed around the upper side wall of the upper buffer hopper 101.
[0061] The upper buffer hopper, telescopic cone hopper, counterweight flap valve, and cone-shaped feed core are all lined with a shock-absorbing buffer layer. The shock-absorbing buffer layer is made of rubber or polyurethane material to avoid hard impact between grain and metal.
[0062] The telescopic grain channel comprises multiple hollow cones 1021, which are vertically connected and wider at the top than at the bottom. These cones can be nested or stacked together. Each cone and the lower buffer chamber 103 has three symmetrically arranged fixing rings 1022 on its outer wall. Three load-bearing ropes 1023 are symmetrically arranged on the outside of the telescopic grain channel and fixedly connected to the fixed platform. Each load-bearing rope passes through a fixing ring of the top cone and is then fastened to support the load. Three connecting ropes 1024 are symmetrically arranged on the side wall of the telescopic grain channel. Each connecting rope is fastened to a fixing ring on the same side of the cone from top to bottom to limit the connection distance between the cones. The end of the connecting rope on the bottom cone is connected and fixed to a fixing ring on the lower buffer chamber 103.
[0063] Example 1
[0064] The technical solution of this invention is specifically implemented in a shallow cylindrical silo with a diameter of 25 meters and a height of 30 meters from the ground to the top inlet. The specific system connection structure is as described above and will not be repeated here.
[0065] The specific work process is as follows:
[0066] First, see Figures 1-4As shown, the grain entering the grain silo through the grain inlet 201 at the top of the silo first falls into the upper buffer hopper below the grain inlet, and then falls into the lower buffer silo through the multi-stage middle telescopic cone hopper. Then the grain falls into the lower distributor through the valve of the counterweight flap valve device at the bottom of the lower buffer silo. The grain entering the lower distributor is evenly distributed by the internal structure of the lower distributor and discharged from the 6 or 12 outlets at the bottom of the lower distributor.
[0067] The working process of the feeder:
[0068] After the grain is fed into the conveyor, it forms a grain column of a certain height in the multi-stage telescopic cone bucket. The weight of the grain opens the valve of the counterweight flap valve device, and the grain falls. Because of the grain column, the grain falls continuously. After entering the lower distributor, it is restricted by the outlet with a set width at the bottom and continues to fall.
[0069] When grain passes through the distributor, it forms an annular grain channel consisting of an upper conical collecting hopper, a central conical distributing core, and an annular stabilizing hopper, which connects to the bottom conical multi-groove distributor. Due to the structural characteristics of the distributor, the grain column is naturally dispersed into the annular stabilizing hopper. Because of the barrel-shaped structure of the annular stabilizing hopper, the grain falls down the annular column step by step, accumulating and descending. After reaching the bottom of the annular stabilizing hopper, it is further divided and falls through the conical hopper dividing plate. There is no grain retention angle in the conical groove, and it slides down under gravity. Finally, it is discharged from the bottom equal-diameter discharge port, achieving the purpose of uniform material distribution.
[0070] Detailed specifications and configuration list of the equipment in this embodiment:
[0071]
[0072] Equipment weight: The three-compartment synchronous winch weighs 1100 kg; the fabric feeding device structural components weigh 2100 kg.
Claims
1. A shallow circular silo gravity self-unloading lifting multi-point material distribution device system, comprising, from top to bottom: The equipment comprises an upper buffer hopper, a fixed platform, a middle telescopic cone hopper, a lower buffer bin, a counterweight flap valve device, a lower distributor, a triangular lifting platform, a material trough, a winch, and a wire rope; characterized in that the lower distributor 105 includes a conical collecting hopper 1051, an annular material stabilizing hopper 1052, a conical multi-groove distributor 1053, and a conical distributing core 1054; The lower distributor 105 consists of a conical collecting hopper, an annular stabilizing hopper, and a conical multi-groove distributor connected sequentially from top to bottom to form a closed shell with internal communication. The conical collecting hopper is a conical funnel structure with a larger upper opening and a smaller lower opening, and its lower opening is connected to the annular stabilizing hopper. The annular stabilizing hopper is a cylindrical hollow structure. The bottom of the annular stabilizing hopper is connected to the conical multi-groove distributor, which is a conical funnel structure with a larger upper opening and a smaller lower opening, and its bottom is closed. The conical distributing core 1054 is vertically placed in the center of the lower distributor 105. The conical distributing core is a cone with its upper part pointing upwards. The structure is a closed cylindrical body with a smooth, integral connection to a cylinder at the bottom. The tip of the conical distributing core reaches below the lower opening of the conical collecting hopper 1051. The annular cavity between the annular stabilizing hopper and the conical distributing core forms a grain channel. The bottom end of the conical distributing core is connected to the bottom end of the conical multi-groove distributor. The conical distributing core divides the container of the conical multi-groove distributor into a conical annular cavity. The conical annular cavity is divided into multiple equal-volume conical bucket-type small hoppers by multiple symmetrically arranged radial vertical partitions 10532. A distributing outlet 10531 is provided on the bottom side wall of each small hopper. The upper end of the lower feeder 105 is connected to the counterweight flap valve device 104. The counterweight flap valve device includes an upper feed hopper, a flap, a lower discharge hopper, a counterweight, and a lever mechanism. The lower discharge hopper is connected to the flange of the conical collection and distribution hopper 1051. The upper end of the counterweight flap valve device 104 is connected to the lower buffer chamber 103, and the upper feed chamber is connected to the lower buffer chamber by a flange. The upper buffer hopper 101, the middle telescopic cone hopper 102, the lower buffer bin 103, the counterweight flap valve device 104, and the lower distributor 105 are sequentially connected to form a grain inlet channel. The middle telescopic cone hopper 102 is composed of multiple bottomless cones connected in a set to form a telescopic grain channel that can be telescopically stacked. The upper cone of the middle telescopic cone hopper is connected to the discharge port of the upper buffer hopper and fixed on the upper fixed platform. The side wall of the bottom cone of the middle telescopic cone hopper is engaged with the inlet of the lower buffer bin. The upper buffer hopper is connected to the upper grain inlet 201 and is attached to the bin wall.
2. The shallow circular silo gravity self-unloading lifting multi-point material distribution device system as described in claim 1, characterized in that, The small material bins are provided in 6 to 12 configurations; each material distribution outlet 10531 on the bottom side wall of the small material bin is connected to a material distribution trough 106 and reinforced by a steel wire rope connected to a triangular lifting platform 301; the material distribution trough has a rectangular or circular tube at the front end connected to the material distribution outlet 10531 and a long trough with an open top at the rear end, and the long trough is a rectangular or semi-circular long trough.
3. The shallow circular silo gravity self-unloading lifting multi-point material distribution device system as described in claim 1, characterized in that, The conical multi-groove material distributor is fixed on the triangular lifting platform 301. The triangular lifting platform is fixedly connected to steel wire ropes 302 at its three corners and connected to the winch 303 outside the warehouse through pulley blocks to control the lifting and lowering of the conical multi-groove material distributor and the material distribution trough.
4. The shallow circular silo gravity self-unloading lifting multi-point material distribution device system as described in claim 3, characterized in that, The steel wire ropes 302 at the three corners of the triangular lifting platform are connected to a winch 303 that synchronously drives the three steel wire ropes through pulley blocks, so as to synchronously lift the triangular lifting platform.
5. The shallow circular silo gravity self-unloading lifting multi-point material distribution device system as described in claim 3, characterized in that, The wire rope 302 extends from the wire rope sealing pipe 401 installed inside the grain silo wall to the outside of the silo and is connected to the winch 303 installed on the ground outside the silo.
6. The shallow circular silo gravity self-unloading lifting multi-point material distribution device system as described in claim 5, characterized in that, The wire rope sealing tube 401 is a composite structure of a steel pipe and a wear-resistant soft rubber tube, including a steel pipe and a wear-resistant soft rubber tube bonded to the inner wall of the steel pipe. The steel pipe and the wear-resistant soft rubber tube are of the same length. The tube hole of the wear-resistant soft rubber tube passes through the wire rope and maintains a movable fit. The wire rope passes through the wear-resistant soft rubber tube to the outside of the warehouse.
7. The shallow circular silo gravity self-unloading lifting multi-point material distribution device system as described in claim 1, characterized in that, The fabric trough and the material dispensing outlet are provided in 12 corresponding positions.
8. The shallow circular silo gravity self-unloading lifting multi-point material distribution device system as described in claim 1, characterized in that, Multiple overflow holes 1011 are evenly distributed around the upper side wall of the upper buffer hopper 101.
9. The shallow circular silo gravity self-unloading lifting multi-point material distribution device system as described in claim 1, characterized in that, The upper buffer hopper, telescopic cone hopper, counterweight flap valve, and cone-shaped material distribution core are all lined with a shock-absorbing buffer layer, which is made of rubber or polyurethane.
10. The shallow circular silo gravity self-unloading lifting multi-point material distribution device system as described in claim 1, characterized in that, The telescopic grain channel comprises multiple hollow cones 1021, which are vertically connected and wider at the top than at the bottom. These cones can be nested or stacked together. Each cone and the lower buffer chamber 103 has three symmetrically arranged fixing rings 1022 on its outer wall. Three load-bearing ropes 1023 are symmetrically arranged on the outside of the telescopic grain channel and fixedly connected to the fixed platform. Each load-bearing rope passes through a fixing ring of the top cone and is then fastened to support the load. Three connecting ropes 1024 are symmetrically arranged on the side wall of the telescopic grain channel. Each connecting rope is fastened to a fixing ring on the same side of the cone from top to bottom to limit the connection distance between the cones. The end of the connecting rope on the bottom cone is connected and fixed to a fixing ring on the lower buffer chamber 103.