Shallow silo lifting and distributing device and operating method

Abstract

A shallow silo lifting and distributing device and operating method, comprising a telescopic sleeve, a lifting and distributing silo, and a hoisting device; a plurality of short distribution pipes are arranged around the sidewall of the lifting and distributing silo and connected with feeding grooves, and each feeding groove is provided with an extended folding distribution groove through a hinge; the height of the lifting and distributing silo is controlled by the hoisting device to ensure that the grain is gradually distributed from the bottom of the silo upwards into the silo, thereby reducing the occurrence of grain grading. Through the telescopic sleeve and the control valve switch, the grain forms limited flow in the telescopic sleeve and does not produce free fall, so that the grain silo of the present application avoids automatic grading and crushing when the grain enters the silo.

Description

Technical Field

[0001] This invention relates to a shallow circular silo lifting and spreading device and its operating method, belonging to the field of grain conveying and storage technology. Background Technology

[0002] Grain silos mainly include shallow circular silos, vertical silos, and steel silos. Due to their high degree of mechanization and small footprint, they have seen significant development and application in my country in recent years. Shallow circular silos, in particular, are the most common type of silo already built or planned. Currently, shallow circular silos primarily use a center-feed method. Because the distance between the center discharge port and the bottom of the silo is relatively high, generally around 25-35 meters, it inevitably leads to automatic grading of the grain (grain falls freely from top to bottom, naturally stratifying by size, weight, shape, and impurities) and breakage, severely affecting grain quality and hindering safe storage. Severe grain grading can impair effective and uniform ventilation within the silo, leading to potential safety risks such as material overheating, mold, sprouting, and spoilage during the storage period. Currently, a series of anti-grading and anti-breakage devices and equipment have emerged in China, such as: wall-mounted folding plate anti-breakage devices, pressure gate-type umbrella-shaped multi-point feeders, valve-controlled anti-grading devices, CNC rotary grain feeders, and multi-functional central pressure reducing pipes. While these devices and equipment can solve the problem of automatic grain grading and breakage to a certain extent, they all have certain drawbacks, such as unsatisfactory results, inability to simultaneously prevent grading and breakage, difficulty in maintenance, or safety hazards, such as high dust levels inside the storage area, which constitutes a dust explosion hazard zone. Therefore, the aforementioned technical problems still need to be addressed. Summary of the Invention

[0003] This invention provides a shallow circular silo lifting and spreading device and its operation method, which aims to solve the technical problems of automatic grading and crushing during the grain entering the silo.

[0004] The technical solution of this invention is implemented as follows:

[0005] A shallow circular silo lifting and placing device includes a telescopic sleeve, a lifting and placing silo, and a lifting device; characterized in that:

[0006] The telescopic sleeve 3 is connected from top to bottom by multiple sleeves with increasing diameters. It is hollow inside and runs through the top and bottom. Adjacent sleeves are connected by a flange-shaped outer flange 303 at the bottom of the inner sleeve hooking onto the flange-shaped inner flange 304 at the top of the outer sleeve. Each inner sleeve can slide into its outer sleeve. The top of the inner sleeve with the smallest diameter is provided with a flange around the pipe opening and is connected to the grain conveying pipe 1 at the top of the silo through a spherical compensator 2. The outer sleeve with the largest diameter is a reducing pipe 301. The upper part of the reducing pipe is cylindrical and the lower part is funnel-shaped and is provided with a valve 302. The reducing pipe below the valve is provided with a steel wire rope channel pipe 413 that runs horizontally through both sides. The bottom opening of the reducing pipe is connected to the inlet at the top of the lifting and feeding silo to convey grain into the silo.

[0007] The top side wall of the lifting material distribution bin 4 is equipped with a suspension and fixing device 5. Multiple feeding troughs 407 and short material distribution pipes 403 are evenly distributed around the side wall of the lifting material distribution bin and communicate with the inside of the bin. An extended folding material distribution trough 402 is provided outside the feeding trough. Both the folding material distribution trough 402 and the feeding trough 407 are U-shaped troughs, and multiple material distribution holes 408 are opened on the bottom surface of the trough. The two are connected by hinges fixed to the bottom surface of the trough. A suspension rope 406 is provided on the side wall of the lifting material distribution bin and is connected to the feeding trough for auxiliary suspension. A pulley is provided on the edge of the top side wall of the lifting material distribution bin. The suspension end of the folding material distribution trough is connected to a traction rope 405. The traction rope passes around the pulley and is limited by a rope loop provided on the lifting material distribution bin. The folding material distribution trough is opened or closed by manual traction. A pointed grain distributor 401 is provided inside the lifting material distribution bin.

[0008] The lifting device 7 is installed on the inner wall of the silo and connected to a steel wire rope. The other end of the steel wire rope pulls the lifting and lowering of the material distribution silo. The arrangement of the steel wire rope is as follows: the other end of the steel wire rope passes around multiple fixed pulleys on the inner wall of the top of the silo, is redirected, and then descends vertically to the top of the lifting and lowering silo. It first passes around the fixed pulley 409 on one side of the steel wire rope channel pipe 413 and then passes through the steel wire rope channel pipe. After passing around the fixed pulley on the other side, it ascends vertically and is fixed to the inner wall of the top of the silo, forming a rectangular arrangement structure, so that the lifting and lowering silo maintains horizontal lifting and lowering.

[0009] The shallow circular silo lifting and spreading device includes a spherical compensator 2 with flanges on both ends of the pipe openings and a through-hole inside. The two ends of the spherical compensator 2 are respectively connected to the lower pipe opening of the grain conveying pipe and the upper pipe opening of the telescopic sleeve. A telescopic dust cover is installed on the telescopic sleeve 3.

[0010] The shallow circular silo lifting and fabric distribution device is provided with a hook rope 501 and a load-bearing suspension rope 201 on the inner wall of the top of the silo 6. The other end of the load-bearing suspension rope 201 is connected to the bottom flange of the spherical compensator. The hook rope 501 assists in hooking the suspension fixing device 5 of the lifting and fabric distribution silo when it rises to the top position and limits its movement.

[0011] The shallow circular silo lifting and fabric-laying device, wherein the suspension fixing device 5 is a ring-shaped handrail structure connected to the top side wall of the lifting and fabric-laying silo;

[0012] The lifting equipment is either a hydraulic winch or a pneumatic winch.

[0013] The telescopic sleeve 3 has multiple layers of sleeves configured as circular, square, and rectangular sleeves;

[0014] A dust cover is installed on the outside of the metal telescopic sleeve;

[0015] The valve is selected for pneumatic control.

[0016] The shallow circular silo lifting and distributing device includes a pointed grain distributor 401, which is a conical structure with the bottom of the lifting and distributing silo recessed upwards and protruding inside the silo, forming an annular pointed bottom between the pointed grain distributor and the bottom of the lifting and distributing silo. Multiple distributors with triangular cross-sections that are narrow at the top and wide at the bottom are distributed and spaced along the circumference of the annular pointed bottom, dividing the annular pointed bottom area into multiple funnel-shaped discharge troughs 410 with pointed bottoms. A discharge port 411 is correspondingly provided at the bottom of the funnel-shaped discharge trough to connect to a feeding trough 407 or a short distributing pipe 403 for unloading.

[0017] The operation method of the shallow circular bin lifting and spreading device includes the following steps:

[0018] (1) Before the grain is put into the warehouse, start the lifting equipment and lower the lifting cloth hopper to the bottom of the silo. The discharge port of the folding cloth trough is 1-2 meters away from the ground. Lower the traction rope to unfold all the folding cloth troughs. Close the discharge valve on the telescopic sleeve.

[0019] (2) Turn on the grain conveying equipment and the grain falls into the telescopic sleeve; when the grain in the telescopic sleeve is filled to 30%-50% of the height, open the lower discharge valve and the grain begins to enter the warehouse.

[0020] (3) When the grain height at the bottom of the silo is 0.3-0.5 meters away from the discharge port of the folding cloth trough, turn on the lifting equipment and slowly raise the cloth silo by 1-2 meters while continuing the grain feeding operation.

[0021] (4) Repeat the above operation until the grain storage height reaches the design requirements; manually pull up the traction rope on the folding cloth trough to close the folding cloth trough; after the grain storage operation is completed, hook the hanging fixed device limit with the hook rope to fix the lifting cloth trough and turn off the lifting equipment.

[0022] The operation method of the shallow circular silo lifting and spreading device is described above, wherein the lifting and spreading silo is driven to rise and fall by the lifting equipment, and the telescopic sleeve is simultaneously extended and retracted; the lifting and spreading silo gradually spreads grain into the silo from the bottom to the top; the grain forms a restricted flow within the telescopic sleeve and does not produce free fall motion.

[0023] The beneficial effects of this invention are:

[0024] This invention features a lifting and distributing silo with multiple short distributing pipes and feeding troughs around its side walls. Each feeding trough has an extended folding distributing trough on its exterior. The height of the lifting and distributing silo is controlled by a lifting device to ensure that grain is gradually distributed from the bottom of the silo upwards, reducing grain grading. Through the telescopic sleeve for grain feeding and the control of valve opening and closing, the grain flows in a restricted manner within the telescopic sleeve, preventing free fall and thus avoiding automatic grading and breakage during grain feeding. Attached Figure Description

[0025] Figure 1 This is a front view schematic diagram of the overall structure at the starting position of the grain feeding point in this invention.

[0026] Figure 2 This is a front view schematic diagram of the overall structure at the end position of the grain feeding in this invention.

[0027] Figure 3 This is a front view schematic diagram of the overall structure of Embodiment 2 of the present invention.

[0028] Figure 4 This is a front view schematic diagram of the overall structure of Embodiment 3 of the present invention.

[0029] Figure 5 This is a cross-sectional schematic diagram showing the connection relationship between the telescopic sleeve and the wire rope channel pipe of the present invention.

[0030] Figure 6 This is a bottom view of the lifting fabric bin in this invention.

[0031] Figure 7 This is a schematic cross-sectional view of the lifting fabric bin in this invention, AA section.

[0032] Figure 8 This is a schematic cross-sectional view of the lifting fabric bin in this invention.

[0033] Figure 9 This is a bottom view schematic diagram of the connection relationship between the folding fabric groove and the hinge in this invention.

[0034] Figure 10 This is a C / C cross-sectional view showing the connection between the folded fabric groove and the hinge in this invention.

[0035] Figure 11 This is a partial cross-sectional schematic diagram showing the connection relationship between the grain conveying pipe, the spherical compensator, and the telescopic sleeve in this invention.

[0036] Figure 12 This is a top view of the exterior of the lifting fabric hopper in this invention.

[0037] Figure 13 This is a partial top view of the funnel-shaped feeding trough in this invention.

[0038] Figure 14 yes Figure 12 A schematic diagram of the unfolded DD section.

[0039] The attached diagrams are numbered and described as follows: 1. Grain conveying pipe; 2. Spherical compensator; 3. Load-bearing hoisting rope; 4. Steel wire rope; 5. Telescopic sleeve; 6. Grain conveying pipe; 7. Valves; 8. Outer flange; 9. Inner flange; 10. Lifting and feeding hopper; 11. Pointed grain distributor; 12. Folding feeding trough; 13. Short feeding pipe; 14. Hinge; 15. Traction rope; 26. Suspension rope; 37. Feeding trough; 48. Feeding hole; 59. Pulley; 60. Funnel-shaped feeding trough; 710. Discharge port; 72. Traction pulley; 73. Steel wire rope channel pipe; 84. Telescopic bracket; 95. Suspension fixing device; 10. Hook rope; 11. Silo; 12. Lifting equipment; 13. Pneumatic winch; 14. Hydraulic winch; 15. Hydraulic pipe or air pipe; 16. Detailed Implementation

[0040] The specific structure and embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] See Figure 1 , 2 As shown, a shallow circular silo lifting and spreading device of the present invention includes a telescopic sleeve, a lifting and spreading silo, and a lifting device;

[0042] The telescopic sleeve 3 is connected from top to bottom by multiple layers of sleeves with increasing diameters, and is hollow and interconnected internally. (See also...) Figure 5As shown, adjacent sleeves are connected by a flange-shaped outer flange 303 at the bottom of the inner sleeve hooking onto the flange-shaped inner flange 304 at the top of the outer sleeve for a sliding connection. Each inner sleeve can slide into its outer sleeve. The inner sleeve with the smallest diameter has a flange around the pipe opening at its top and is connected to the grain conveying pipe 1 at the top of the silo via a spherical compensator 2. The outer sleeve with the largest diameter is a reducing pipe 301. The upper part of the reducing pipe is cylindrical, and the lower part is funnel-shaped and equipped with a valve 302. The reducing pipe below the valve has a steel wire rope channel pipe 413 that runs horizontally through both sides. The bottom opening of the reducing pipe is connected to the inlet at the top of the lifting and feeding silo to convey grain into the silo.

[0043] The top side wall of the lifting fabric bin 4 is equipped with a suspension fixing device 5, see [link / reference] Figure 6-10 As shown, multiple feeding troughs 407 and short fabric tubes 403 are evenly distributed around the side wall of the lifting fabric bin, communicating with the inside of the bin. An extended folding fabric trough 402 is provided outside the feeding trough. Both the folding fabric trough 402 and the feeding trough 407 are U-shaped troughs, and multiple fabric holes 408 are opened on the bottom surface of each trough. The two are connected by hinges fixed to the bottom surface of the trough. A suspension rope 406 is provided on the side wall of the lifting fabric bin and connected to the feeding trough for auxiliary suspension. Figure 1 The lifting fabric hopper is equipped with pulleys on the top side wall edge, and the suspended end of the folding fabric trough is connected to a traction rope 405. The traction rope passes around the pulleys and is limited by a rope loop set on the lifting fabric hopper. The folding fabric trough is opened or closed by manual pulling. The lifting fabric hopper is equipped with a pointed grain distributor 401.

[0044] The lifting device 7 is installed on the inner wall of the silo and connected to a steel wire rope. The other end of the steel wire rope pulls the lifting and lowering of the material distribution silo. The arrangement of the steel wire rope is as follows: the other end of the steel wire rope passes around multiple fixed pulleys on the inner wall of the top of the silo, is redirected, and then descends vertically to the top of the lifting and lowering silo. It first passes around the fixed pulley 409 on one side of the steel wire rope channel pipe 413 and then passes through the steel wire rope channel pipe. After passing around the fixed pulley on the other side, it ascends vertically and is fixed to the inner wall of the top of the silo, forming a rectangular arrangement structure, so that the lifting and lowering silo maintains horizontal lifting and lowering.

[0045] The aforementioned shallow circular bin lifting and fabric-laying device, see [link / reference]. Figure 11 As shown, the spherical compensator 2 has flanges on both ends of its pipe openings, and its interior is fully connected vertically. The two ends of the spherical compensator 2 are respectively connected to the lower opening of the grain conveying pipe and the upper opening of the telescopic sleeve. A telescopic dust cover is installed over the telescopic sleeve 3. The telescopic dust cover is a traditional structure and will not be described in detail.

[0046] The shallow circular silo lifting and spreading device, wherein the inner wall of the top of the silo 6 is provided with a hook rope 501 and a load-bearing lifting rope 201, see Figure 2 The other end of the load-bearing rope 201 is connected to the bottom flange of the spherical compensator to assist in load bearing; the hook rope 501 assists in hooking the suspension fixing device 5 of the lifting fabric bin when it rises to the top position.

[0047] The shallow circular silo lifting and fabric-laying device, wherein the suspension fixing device 5 is a ring-shaped handrail structure, connected to the top side wall of the lifting and fabric-laying silo (see [reference]). Figure 8 ;

[0048] The lifting equipment is existing technology, and a hydraulic winch or a pneumatic winch can be selected.

[0049] The multi-layered sleeve of the telescopic sleeve 3 can be configured as a circular, square, or rectangular sleeve;

[0050] The metal telescopic sleeve is fitted with a dust cover to prevent dust and extend its service life.

[0051] The valve can be pneumatically controlled.

[0052] The shallow circular silo lifting and distributing device, wherein the pointed grain distributor 401 is configured as a conical structure with the bottom of the lifting and distributing silo recessed upwards and protruding inside the silo, see [reference]. Figure 7 As shown, the pointed grain distributor and the bottom of the lifting and distributing hopper form an annular pointed bottom; multiple distributor partitions with triangular tangential sections, narrower at the top and wider at the bottom, are distributed and spaced along the circumference of the annular pointed bottom. (See Figure 1) Figure 13 , 14 As shown, the annular pointed bottom area is divided into multiple funnel-shaped feeding troughs 410 with pointed bottoms, and a discharge port 411 is set at the bottom of the funnel-shaped feeding trough to connect to the feeding trough 407 or the short feeding pipe 403 to discharge the material without accumulating grain.

[0053] The operation method of the shallow circular bin lifting and spreading device includes the following steps:

[0054] (1) Before the grain is put into storage, start the lifting equipment and lower the lifting and placing silo to the bottom of the silo. Figure 1 The discharge port of the folding fabric trough is 1-2 meters above the ground; lower the traction rope to unfold all the folding fabric troughs; close the discharge valve on the telescopic sleeve;

[0055] (2) Turn on the grain conveying equipment and the grain falls into the telescopic sleeve; when the grain in the telescopic sleeve is filled to 30%-50% of the height, open the lower discharge valve and the grain begins to enter the warehouse.

[0056] (3) When the grain height at the bottom of the silo is 0.3-0.5 meters away from the discharge port of the folding cloth trough, turn on the lifting equipment and slowly raise the cloth silo by 1-2 meters while continuing the grain feeding operation.

[0057] (4) Repeat the above operations until the grain storage height reaches the design requirements; manually pull the traction rope on the folding cloth trough to retract it; after the grain storage operation is completed, hook the suspension fixing device limit with the hook rope to fix the lifting cloth trough and turn off the lifting equipment. Figure 2 As shown.

[0058] The operation method of the shallow circular silo lifting and spreading device is described above, wherein the lifting and spreading silo is driven to rise and fall by the lifting equipment, and the telescopic sleeve is simultaneously extended and retracted; the lifting and spreading silo gradually spreads grain into the silo from the bottom to the top; the grain forms a restricted flow within the telescopic sleeve and does not produce free fall motion.

[0059] The specific embodiments of the present invention will be further described in detail below:

[0060] See Figure 1 , 9 10, 14, the short fabric tube 403 and the feeding trough 407 are both connected to the discharge port 411 on the side wall of the lifting fabric bin. The feeding trough is provided with an extended folding fabric trough 402. The feeding trough and the folding fabric trough are connected by a hinge 404 on the bottom surface of the trough.

[0061] See Figure 1 The lifting fabric silo 4 is equipped with a traction pulley 412 on the edge of the top side wall, which reduces the friction of the traction rope during movement. The lifting equipment 7 is installed on the silo side wall platform.

[0062] See Figure 5 The telescopic sleeve 3 is connected from top to bottom by multiple sleeves of increasing diameter. It is hollow inside. Adjacent sleeves are limited by a flange-shaped outer flange 303 at the bottom of the inner sleeve hooking onto the flange-shaped inner flange 304 at the top of the outer sleeve. Each inner sleeve can slide into its outer sleeve. The inner sleeve with the smallest diameter has a flange around its opening at the top and is connected to the grain conveying pipe 1 via a spherical compensator 2. The outer sleeve with the largest diameter is a reducer 301, with a cylindrical upper section and a funnel-shaped lower section. A steel wire rope channel 413 runs horizontally through both sides of the reducer. The telescopic sleeve 3 transfers the grain conveyed by the grain conveying pipe 1 to the lifting and distributing hopper 4.

[0063] See Figure 6 , 7The lifting and placing silo 4 has multiple short placing pipes 403 and feeding troughs 407 around its side walls, with an extended folding placing trough 402 extending outward from each feeding trough. The top side wall of the lifting and placing silo is equipped with a suspension and fixing device 5, which is a ring-shaped handrail used to engage with the hook rope on the top of the silo after grain feeding to secure the lifting and placing silo. Inside the lifting and placing silo is a pointed grain distributor 401 to ensure that no grain remains in the lifting and placing silo during the feeding process.

[0064] See Figure 11 The spherical compensator 2 has flanges at both ends and a spherical compartment in the middle.

[0065] See Figure 3 In another embodiment of the invention, the wire rope channel pipe on the reducing pipe is eliminated. A lifting ring is installed at the top of the lifting silo instead of the original fixed pulley. A wire rope is installed on each side of the telescopic sleeve. One end of each wire rope has a hook that hooks onto the lifting ring at the top of the lifting silo, and the other end is connected to the lifting equipment via a pulley installed on the inner wall of the silo top. The lifting equipment is a double-drum winch, and the lifting method of the lifting silo is changed from single-rope traction lifting in Embodiment 1 to double-rope traction lifting.

[0066] The telescopic sleeve is equipped with a non-metallic telescopic dust cover for dust protection.

[0067] See Figure 4 As shown, X-shaped telescopic brackets are installed on both sides of the top of the lifting fabric silo. The bottom of the X-shaped telescopic brackets is installed on the top of the lifting fabric silo, and its top is connected to the inner wall of the silo top. The remaining technical solutions are the same as in Embodiment 1. Figure 1 I will not go into details.

[0068] The present invention relates to a shallow circular silo lifting and spreading device, which is composed of a spherical compensator, a metal telescopic sleeve, a valve, a lifting spreading silo, a pointed grain distributor, a folding spreading trough, a lifting device, a material level detection sensor, a telescopic dust cover, pulleys and other devices.

[0069] Lifting equipment includes: hydraulic winches (hydraulic hoists, hydraulic winches) or pneumatic winches (pneumatic hoists, pneumatic winches, pneumatic hoists); among which hydraulic winches are equipped with hydraulic devices; pneumatic winches are equipped with compressed air distribution devices.

[0070] The lifting methods of lifting equipment include: single-rope traction lifting, double-rope traction lifting, or four-rope traction lifting.

[0071] The spherical compensator has flanges at both ends, which are connected to the grain conveying pipe and the top section of the expansion sleeve, respectively.

[0072] The telescopic sleeve is externally fitted with a non-metallic telescopic dust cover. The telescopic sleeve is made of metal and consists of multiple layers of sleeves with different diameters, including circular, square, and rectangular structures. The length and diameter of the telescopic sleeve can be adjusted as needed. The length of the telescopic sleeve is 3 meters to 6 meters. The diameter of the circular metal telescopic sleeve is 30 centimeters to 90 centimeters. The side length of the square metal telescopic sleeve is 30 centimeters to 90 centimeters. The length of the rectangular metal telescopic sleeve is 40 centimeters to 90 centimeters, and the width is 20 centimeters to 60 centimeters. The top of the inner sleeve with the smallest diameter has a flange around the pipe opening, and 4-8 steel wire ropes are installed around the edge of the flange to suspend the load from the top of the silo. The bottom sleeve of the telescopic sleeve is a reducer, equipped with a valve. A steel wire rope channel pipe can be installed below the valve as needed. The bottom of the reducer connects to the top inlet of the lifting and distributing silo, communicating with its interior. A tuning fork sensor for detecting the grain level is installed inside the telescopic sleeve.

[0073] The valve is a remotely controllable pneumatic gate valve or pneumatic flap valve.

[0074] The lifting silo has a diameter of 2-6 meters and is equipped with a pointed grain distributor inside. A level sensor is installed on the top of the lifting silo. A suspension and fixing device is installed on the top side wall of the lifting silo. Hook ropes are installed on the inner top wall of the grain silo. After the grain loading operation is completed, the hook ropes suspend the suspension and fixing device, thus securing the lifting silo. Multiple short feeding pipes and feeding troughs are installed on the bottom side wall of the lifting silo. Each feeding trough is connected to a folding feeding trough via hinges. Both the feeding trough and the folding feeding trough are U-shaped, with the side length of the folding feeding trough being 20-30 cm. The length of the folding feeding trough is 2-7 meters. Discharge ports are opened at different positions on the bottom of the folding feeding trough. A manually pullable steel wire traction rope is installed at the bottom of the folding feeding pipe. A material level detection sensor is also installed at the bottom of the lifting silo.

[0075] Example 1

[0076] The technical solution of the present invention is specifically implemented in a shallow cylindrical silo with a diameter of 25 meters and a height of 28 meters from the ground to the top inlet.

[0077] See Figure 1 As shown, a single-drum pneumatic winch 701 is installed on a platform inside the side wall 6 of the silo, and two pulleys are installed on the top of the silo.

[0078] The lower end of the grain conveying pipe 1 is equipped with a spherical compensator 2 with a diameter of 35 cm. Flanges are located at both ends of the spherical compensator, and its lower end connects to the uppermost circular metal expansion sleeve. A non-metallic telescopic dust cover is installed on the outside of the expansion sleeve 3. (See also...) Figure 5As shown, the telescopic sleeve is made of metal and consists of five sections with different diameters. Each section is 4.5 meters long, and the top section has a diameter of 36 centimeters. The top of the innermost section, with the smallest diameter, has a flange around its opening. Eight 2-centimeter diameter steel wire ropes (201) are installed around the edge of the flange, suspending the silo from the top. The bottommost section is a reducer (301), with an upper diameter of 52 centimeters and a lower diameter of 40 centimeters. A pneumatic gate valve (302) is installed on the reducer. A steel wire rope channel pipe (413) is installed below the valve on the reducer, connecting the bottom of the reducer to the top inlet of the lifting silo, thus communicating with the inside of the silo. A tuning fork sensor for detecting the grain level is installed inside the telescopic sleeve.

[0079] See Figure 7 As shown, the lifting silo 4 has a diameter of 5 meters and is equipped with a pointed grain distributor 401 inside. A level sensor is installed on the top of the lifting silo. A suspension and fixing device 5 is installed on the top side wall of the lifting silo. Hook ropes 501 are installed on the inner wall of the top of the grain silo. After the grain loading operation is completed, the hook ropes suspend the suspension and fixing device, thereby securing the lifting silo. See also Figure 6 As shown, the bottom side wall of the lifting fabric hopper is equipped with eight short fabric tubes 403 and eight feeding troughs 407. Each feeding trough is connected to a folding fabric trough 402 via a hinge. Both the feeding troughs and the folding fabric troughs are U-shaped, with the folding fabric trough having a side length of 20 centimeters. The folding fabric trough is 6 meters long. Discharge ports 408 are located at different positions on the bottom of the folding fabric trough. A manually pullable steel wire rope 405 is installed at the bottom of the folding fabric tubes. A material level detection sensor is also installed at the bottom of the lifting fabric hopper.

[0080] Example 2

[0081] See Figure 3 As shown in Embodiment 1, the wire rope channel pipe 413 on the reducing pipe 3 is removed. A lifting ring is installed at the top of the lifting silo 4 instead of the original pulley. A wire rope 202 is installed on each side of the telescopic sleeve. One end of the wire rope has a hook that hooks onto the lifting ring at the top of the lifting silo, and the other end is connected to the lifting equipment 7 via a pulley installed on the inner wall of the top of the silo 6. The lifting equipment 7 is a double-drum hydraulic winch 702. The lifting method of the lifting silo is changed from single-rope traction lifting in Embodiment 1 to double-rope traction lifting. The remaining technical solutions are the same as in Embodiment 1 and will not be repeated.

[0082] Example 3

[0083] See Figure 4As shown, based on Embodiment 1, X-shaped telescopic supports 414 are installed on both sides of the top of the lifting fabric silo 4 to improve load-bearing capacity and stability. The telescopic supports 414 are a rhomboid four-bar telescopic folding mechanism, including multiple sets of X-shaped links. Each set of X-shaped links consists of two links hinged in the middle, capable of rotating relative to each other in a plane. The X-shaped links are arranged sequentially vertically, with their ends hinged together to form a rhomboid four-bar telescopic folding mechanism. Multiple parallel transverse connecting rods are connected to the two sides of each set of telescopic supports in each telescopic support. The two ends of each transverse connecting rod are connected to the outer hinge shaft of the telescopic support, or the two ends of each transverse connecting rod are hinge shafts within the outer hinge holes of the telescopic support. The bottom of the X-shaped telescopic support is installed on the top of the lifting fabric silo, and its top is connected to the inner wall of the silo top. The remaining technical solutions are the same as in Embodiment 1 and will not be repeated here.

Claims

1. A shallow circular silo lifting and placing device, comprising a telescopic sleeve, a lifting and placing silo, and a lifting device; characterized in that: The telescopic sleeve (3) is connected from top to bottom by multiple sleeves with increasing diameters. The interior is hollow and runs through the top and bottom. The adjacent sleeves are connected by the flange-shaped outer flange (303) at the bottom of the inner sleeve hooking the flange-shaped inner flange (304) at the top of the outer sleeve for limiting and sliding connection. Each inner sleeve can slide into its outer sleeve. The top of the inner sleeve with the smallest diameter is provided with a flange around the pipe opening and is connected to the grain conveying pipe (1) at the top of the silo through a spherical compensator (2). The outer sleeve with the largest diameter is a reducing pipe (301). The upper part of the reducing pipe is cylindrical and the lower part is funnel-shaped and is provided with a valve (302). The reducing pipe below the valve is provided with a steel wire rope channel pipe (413) that runs horizontally through both sides. The bottom opening of the reducing pipe is connected to the inlet at the top of the lifting and feeding silo to convey grain into the silo. The top side wall of the lifting material distribution hopper (4) is equipped with a suspension fixing device (5). Multiple feeding troughs (407) and short material distribution pipes (403) are evenly distributed around the side wall of the lifting material distribution hopper and communicate with the inside of the hopper. An extended folding material distribution trough (402) is provided outside the feeding trough. Both the folding material distribution trough (402) and the feeding trough (407) are U-shaped troughs. Multiple material distribution holes (408) are opened on the bottom surface of the trough. The two are connected by a hinge fixed to the bottom surface of the trough. A suspension rope (406) is provided on the side wall of the lifting material distribution hopper and is connected to the feeding trough for auxiliary suspension. A pulley is provided on the edge of the top side wall of the lifting material distribution hopper. A traction rope (405) is connected to the suspended end of the folding material distribution trough. The traction rope passes around the pulley and is limited by a rope loop provided on the lifting material distribution hopper. The folding material distribution trough is opened or closed by manual traction. A pointed grain distributor (401) is provided inside the lifting material distribution hopper. The lifting equipment (7) is installed on the inner wall of the silo and connected to a wire rope. The other end of the wire rope pulls the lifting and lowering of the fabric silo. The arrangement of the wire rope is as follows: the other end of the wire rope passes around multiple fixed pulleys on the inner wall of the top of the silo and then descends vertically to the top of the lifting and lowering fabric silo. It first passes around the fixed pulley on one side of the wire rope channel pipe (413) and then passes through the wire rope channel pipe. After passing around the fixed pulley (409) on the other side, it ascends vertically and is fixed on the inner wall of the top of the silo, forming a rectangular arrangement structure, so that the lifting and lowering fabric silo remains horizontal. The pointed grain distributor (401) is configured as a conical structure with the bottom of the lifting and spreading hopper recessed upward and protruding inside the hopper, so that the pointed grain distributor and the bottom of the lifting and spreading hopper form an annular pointed bottom; multiple distributor partitions with a triangular cross-section that is narrow at the top and wide at the bottom are distributed and spaced along the circumference on the annular pointed bottom, dividing the annular pointed bottom area into multiple funnel-shaped feeding troughs (410) with pointed bottoms, and a discharge port (411) is correspondingly provided at the bottom of the funnel-shaped feeding trough to connect the feeding trough (407) or short spreading pipe (403) for unloading.

2. The shallow circular bin lifting and spreading device as described in claim 1, characterized in that, The spherical compensator (2) has flanges on both ends of the pipe openings and is internally connected from top to bottom. The two ends of the spherical compensator (2) are respectively connected to the lower pipe opening of the grain conveying pipe and the upper pipe opening of the telescopic sleeve. The telescopic sleeve (3) is covered with a telescopic dust cover.

3. The shallow circular bin lifting and spreading device as described in claim 1, characterized in that, The silo (6) is provided with a hook rope (501) and a load-bearing rope (201) on the inner wall of the top. The other end of the load-bearing rope (201) is connected to the bottom flange of the spherical compensator. The hook rope (501) helps to hook the suspension fixing device (5) of the lifting fabric silo that has risen to the top position and limit its movement.

4. The shallow circular bin lifting and spreading device as described in claim 3, characterized in that, The suspension fixing device (5) is a ring-shaped handrail structure, which is connected to the top side wall of the lifting fabric bin; The lifting equipment is either a hydraulic winch or a pneumatic winch. The telescopic sleeve (3) has multiple sleeves configured as circular, square, and rectangular sleeves; A dust cover is installed on the outside of the telescopic sleeve; The valve is selected for pneumatic control.

5. The operating method of the shallow circular bin lifting and spreading device as described in claim 3, characterized in that, Includes the following steps: (1) Before the grain is put into the warehouse, start the lifting equipment and lower the lifting cloth hopper to the bottom of the silo. The discharge port of the folding cloth trough is 1-2 meters away from the ground. Lower the traction rope to unfold all the folding cloth troughs. Close the discharge valve on the telescopic sleeve. (2) Turn on the grain conveying equipment and the grain falls into the telescopic sleeve; when the grain in the telescopic sleeve is filled to 30%-50% of the height, open the lower discharge valve and the grain begins to enter the warehouse. (3) When the grain height at the bottom of the silo is 0.3-0.5 meters away from the discharge port of the folding cloth trough, turn on the lifting equipment and slowly raise the cloth silo by 1-2 meters while continuing the grain feeding operation. (4) Repeat the above operation until the grain is placed into the warehouse at the design height; manually pull up the traction rope on the folding cloth trough to close the folding cloth trough; after the grain is placed into the warehouse, hook the hanging fixed device limit with the hook rope to fix the lifting cloth trough and turn off the lifting equipment.

6. The operating method of the shallow circular bin lifting and spreading device as described in claim 5, characterized in that, The lifting equipment drives the lifting of the fabric hopper, and at the same time drives the telescopic sleeve to extend and retract synchronously. The grain is gradually distributed into the silo from the bottom upwards in the lifting and spreading silo; the grain forms a restricted flow within the telescopic sleeve, preventing free fall.

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