Grain silo anti-breaking and anti-grading lifting system and operation method

Abstract

The invention discloses a grain silo anti-breaking and anti-grading lifting system and an operation method, the grain silo anti-breaking and anti-grading lifting system comprises a silo, a lifting system and a lifting distributing machine, the lifting distributing machine 1 comprises a transfer stock bin 101, an in-silo stock bin 102 and a metal telescopic pipe type feeding pipe 3; a suspension fixing device 3 is arranged in the silo; the lifting system 2 comprises a driving system 201 and a metal telescopic sleeve 202; the lifting system drives the steel wire rope to drive the transfer bin to ascend and descend and drives the metal telescopic sleeve and the metal telescopic sleeve type feeding pipe to stretch out and draw back synchronously. The transfer stock bin conveys grains to the in-bin stock bin through a metal telescopic pipe type feeding pipe, and the in-bin stock bin gradually spreads the grains upwards from the bottom of the silo to enter the silo; according to the grain silo, during grain feeding, automatic grading and crushing are avoided.

Description

Technical Field

[0001] This invention relates to a grain silo anti-breakage and anti-grading lifting system and its operating method, belonging to the field of grain 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. Currently, most grain silos use a center-feed system. Because the distance between the center discharge port and the bottom of the silo is high, generally 20-50 meters, automatic grain grading (grain falling freely from top to bottom, with particle size, weight, shape, and impurities forming natural stratification) and breakage are unavoidable, seriously 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 storage. 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 distributors, valve-controlled anti-grading devices, CNC rotary grain distributors, and multi-functional central pressure-reducing pipes. While the above devices and equipment can solve the problem of automatic grading and crushing of grain to a certain extent, they all have certain defects, such as unsatisfactory results, inability to simultaneously prevent grading and crushing, difficulty in maintenance, or safety hazards, such as high dust levels inside the storage area, which is a dust explosion hazard zone; therefore, further solutions are needed. Summary of the Invention

[0003] This invention provides a grain silo anti-breakage and anti-grading lifting system and its operation method, which aims to solve the technical problems of automatic grading and breakage that occur when grain is fed into the grain silo.

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

[0005] A grain silo anti-breakage and anti-grading lifting system includes a silo, a lifting system, and a lifting material distribution machine.

[0006] The lifting material distribution machine 1 includes a transfer hopper 101, an inner hopper 102, and a metal telescopic sleeve type feeding pipe 3; the transfer hopper is installed above the top inlet of the silo or suspended below the top inlet of the silo, and the inner hopper is located inside the silo 400; the center position of the inner hopper corresponds to that of the transfer hopper; a discharge valve 103 is provided at the bottom discharge port of the transfer hopper to allow material to enter the silo, and a material distribution pipe 104 is installed at the lower part of the inner hopper;

[0007] The lifting system 2 includes a drive system 201 and a metal telescopic sleeve 202. The drive system includes a steel wire rope 203, which is installed in the top area outside the silo. The steel wire rope enters the silo from the top inlet. At least two metal telescopic sleeves are erected parallel to each other inside the silo and arranged at the edge of the silo. The metal telescopic sleeves are connected from top to bottom by multiple layers of sleeves with increasing diameters. Adjacent layers of sleeves are connected by a flange-shaped outer flange 2021 at the bottom of the inner sleeve. The flange-shaped inner flange 2022 at the top of the outer sleeve is hooked and limited, allowing each inner sleeve to slide into its outer sleeve. The bottom of each sleeve is closed. The top of the inner sleeve with the smallest diameter is fixed to the top of the silo, and the bottom of the outer sleeve with the largest diameter is fixed to the top edge wall of the silo to form a telescopic support. The steel wire rope passes through the top of the metal telescopic sleeve and out from the bottom, and is connected to a pulley fixed to the inner edge wall of the silo to drive the silo to move up and down.

[0008] Inside the silo, below the transfer silo, a vertical metal telescopic sleeve-type feeding pipe 3 is installed, coaxial with the center line of the transfer silo. The metal telescopic sleeve-type feeding pipe is connected from top to bottom by multiple layers of sleeves with increasing diameters. The inner and outer sleeves of the metal telescopic sleeve-type feeding pipe are connected in the same way as the inner and outer sleeves of the metal telescopic sleeve. The uppermost and lowermost fixed ends of the metal telescopic sleeve-type feeding pipe are respectively connected to the top of the silo or the bottom of the transfer silo, and the silo... The top discharge port of the inner hopper, the metal telescopic sleeve type feeding pipe runs vertically through to form a telescopic conveying pipeline, the bottom discharge port of the transfer hopper is connected to the upper discharge port of the metal telescopic sleeve type feeding pipe, the discharge valve 103 is a remotely controlled pneumatic valve; the metal telescopic sleeve type feeding pipe and each sleeve of the metal telescopic sleeve are symmetrically arranged in length and synchronously extend and retract to the same height; the bottom of the metal telescopic sleeve type feeding pipe is equipped with a discharge valve 301, which is a remotely controlled pneumatic valve.

[0009] The grain silo anti-breakage and anti-grading lifting system includes a silo with 4-20 sets of material distribution pipes connected to the silo interior at the lower part of the silo, the length of the material distribution pipes being 0.5 meters to 12 meters.

[0010] The grain silo anti-breakage and anti-grading lifting system includes a conical folding plate type grain dispersing device installed in the middle of the silo, which includes a pointed conical folding plate 1021 and three support columns 1022 connected and fixed to the bottom of the silo.

[0011] The grain silo anti-breakage and anti-grading lifting system includes a suspension and fixing device installed inside the silo. The suspension and fixing device includes 1-2 pairs of hooks 5 that are symmetrically arranged on the side of the silo and suspended inside the silo by a steel wire rope. The upper part of the steel wire rope is connected to the top of the silo. A ring of protruding ribs 1023 is provided on the outer wall of the silo, and the hooks hook the protruding ribs to fix the silo inside the silo.

[0012] The grain silo anti-breakage and anti-grading lifting system includes a feeding valve on the feeding pipe that is a remotely controlled pneumatic valve; and multiple metal telescopic sleeves are arranged in a linear, triangular, or regular polygonal layout according to the number of installed sleeves.

[0013] The operation method of the grain silo anti-breakage and anti-grading lifting system is characterized by the following steps:

[0014] (1) First, the lifting system drives the wire rope to raise the transfer silo 101 to the highest position inside the silo;

[0015] (2) Then, when the grain in the transfer silo is filled to about 50%, the discharge valve 103 is opened and the grain falls into the uppermost and innermost section of the metal telescopic sleeve feeding pipe 3.

[0016] (3) When the top section of the sleeve is filled with about 70%-90% grain, the lifting system drives the wire rope to lower the height of the silo 102 in the warehouse by one section of the sleeve, so that the metal telescopic sleeve feeding pipe pulls out one section of the outer sleeve, which is also the second section of the sleeve counting from the top section of the sleeve. When the second section of the sleeve is filled with about 70%-90% grain, the lifting system drives the wire rope to lower the height of the silo 102 in the warehouse by another section of the sleeve, so that the metal telescopic sleeve feeding pipe pulls out one section of the outer sleeve, which is also the third section of the sleeve counting from the top section of the sleeve. When the third section of the sleeve is filled with about 70%-90% grain, the height of the silo in the warehouse continues to be lowered, and this process is repeated.

[0017] (4) Following the above operation method, when the silo inside the warehouse is lowered to the lowest position inside the silo, the material distribution pipe at the bottom of the silo inside the warehouse is 1-4 meters away from the ground of the grain silo. Open the discharge valve 301 set at the bottom of the metal telescopic sleeve type feeding pipe so that the grain in the sleeve enters the silo inside the warehouse. Then open the material distribution valve on the material distribution pipe (when a material distribution valve is provided), and the grain falls evenly to the ground of the grain silo through the material distribution pipe inside the warehouse.

[0018] (5) When the grain in the grain silo is 0.5-1 meter away from the feeding pipe inside the silo, the lifting system drives the wire rope to raise the height of the silo inside the silo, and at the same time continuously transports the grain into the grain silo through the metal telescopic sleeve feeding pipe; during the process of raising the height of the silo inside the silo, in the opposite direction to the descent, the metal telescopic sleeve feeding pipe gradually shortens its length by inserting the outer sleeve into the inner sleeve.

[0019] (6) After the grain storage operation is completed, first fix the lifting cloth machine and the metal telescopic sleeve feeding pipe by means of the hanging fixing device.

[0020] (7) Then, first disconnect the steel wire rope on the elevator from the silo inside the warehouse, and then lift it to the top of the grain silo.

[0021] (8) The steel wire rope passage at the top of the grain silo is temporarily sealed.

[0022] (9) When the grain silo is filled with grain again, the wire rope channel is reopened and the wire rope is reinstalled on the top of the silo inside the silo.

[0023] The operation method of the grain silo anti-breakage and anti-grading lifting system includes controlling the flow rate and velocity of grain in the metal telescopic sleeve feeding pipe by controlling the opening and closing of the discharge valve 103, discharge valve 301, and the valve opening degree, thereby reducing grain breakage.

[0024] The beneficial effects of this invention are:

[0025] The lifting system of this invention drives the steel wire rope to lift the transfer silo, and drives the metal telescopic sleeve and the metal telescopic sleeve feeding pipe to extend and retract synchronously; the transfer silo transports grain to the inner silo through the metal telescopic sleeve feeding pipe, and the inner silo gradually spreads the grain into the silo from the bottom of the silo upwards; thus, the grain silo of this invention avoids automatic grading and breakage when the grain is put into the silo. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 This is a schematic diagram of the metal telescopic sleeve structure of the present invention.

[0028] Figure 3 This is a schematic diagram of the metal telescopic sleeve type feeding pipe structure of the present invention.

[0029] Figure 4 This is a schematic diagram of the silo inside the warehouse of the present invention being raised to the top and fixed by a suspension fixing device.

[0030] Figure 5 This is a schematic diagram of the internal silo of the present invention.

[0031] Figure 6 yes Figure 5 AA sectional view diagram,

[0032] Figure 7 yes Figure 6 BB cross-sectional diagram,

[0033] Figure 8 This is a schematic diagram of the suspension fixing device structure of the present invention.

[0034] Figure 9 This is a top view schematic diagram of the suspension fixing device of the present invention.

[0035] Figure 10 This is a top view schematic diagram of the conical folding plate type grain dispersing device of the present invention.

[0036] Figure 11 yes Figure 10 cc cross-sectional view.

[0037] Explanation of the attached drawing numbers:

[0038] 1. Lifting material placing machine; 101. Transfer hopper; 102. Inner hopper; 102. Conical folding plate; 1021. Support column; 1022. Protruding rib; 1023. Discharge valve; 103. Material placing pipe; 104.

[0039] Lifting system 2, drive system 201, metal telescopic sleeve 202, flange-shaped outer flange 2021, flange-shaped inner flange 2022, wire rope 203;

[0040] 3. Metal telescopic sleeve type feeding pipe, discharge valve 301

[0041] Silo 400; hooks 5. Detailed Implementation

[0042] The specific structure and embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] See Figure 1-6 As shown, the present invention provides a grain silo anti-breakage and anti-grading lifting system, comprising a silo, a lifting system, and a lifting and spreading machine.

[0044] The lifting material distribution machine 1 includes a transfer hopper 101, an inner hopper 102, and a metal telescopic sleeve type feeding pipe 3; the transfer hopper is installed above the top inlet of the silo or suspended below the top inlet of the silo, and the inner hopper is located inside the silo 400; the center position of the inner hopper corresponds to that of the transfer hopper; a discharge valve 103 is provided at the bottom discharge port of the transfer hopper to allow material to enter the silo, and a material distribution pipe 104 is installed at the lower part of the inner hopper;

[0045] The lifting system 2 includes a drive system 201 and a metal telescopic sleeve 202. The drive system includes a steel wire rope 203, which is installed in the top area outside the silo. The steel wire rope enters the silo from the top inlet. At least two metal telescopic sleeves are erected parallel to each other inside the silo and arranged at the edge of the silo. The metal telescopic sleeves are connected from top to bottom by multiple layers of sleeves with increasing diameters. Adjacent layers of sleeves are limited by the flange-shaped outer flange 2021 at the bottom of the inner sleeve hooking the flange-shaped inner flange 2022 at the top of the outer sleeve. Each inner sleeve can slide into its outer sleeve. The bottom of each sleeve is closed. The top of the inner sleeve (which can be a solid tube) with the smallest diameter is fixed to the top of the silo, and the bottom of the outer sleeve with the largest diameter is fixed to the top edge wall of the silo to form a telescopic support. The steel wire rope passes through the top of the metal telescopic sleeve and exits from the bottom. See below. Figure 7 It is connected to a pulley fixed on the inner edge wall of the silo inside the warehouse, and drives the silo inside the warehouse to move up and down;

[0046] Inside the silo, below the transfer silo, a vertical metal telescopic sleeve-type feeding pipe 3 is installed, coaxial with the center line of the transfer silo. The metal telescopic sleeve-type feeding pipe is connected from top to bottom by multiple layers of sleeves with increasing diameters. The inner and outer sleeves of the metal telescopic sleeve-type feeding pipe are connected in the same way as the inner and outer sleeves of the metal telescopic sleeve itself. See [link to relevant documentation]. Figure 2 , 3 As shown, the uppermost and lowermost fixed ends of the metal telescopic sleeve-type feeding pipe are respectively connected to the top of the silo or the bottom of the transfer silo, and the top discharge port of the silo inside the silo. The metal telescopic sleeve-type feeding pipe is internally connected vertically to form a telescopic conveying pipeline. The discharge port at the bottom of the transfer silo is connected to the upper discharge port of the metal telescopic sleeve-type feeding pipe. The discharge valve 103 is a remotely controlled pneumatic valve. The lengths of the metal telescopic sleeve-type feeding pipe and each sleeve of the metal telescopic sleeve are symmetrically arranged and synchronously extend and retract to the same height. The discharge valve 301 at the bottom of the metal telescopic sleeve-type feeding pipe is a remotely controlled pneumatic valve.

[0047] The grain silo anti-breakage and anti-grading lifting system includes a silo with 4-20 sets of material distribution pipes connected to the silo interior at the lower part of the silo, the length of the material distribution pipes being 0.5 meters to 12 meters.

[0048] The aforementioned grain silo anti-breakage and anti-grading lifting system includes a conical baffle-type grain dispersing device installed in the middle of the silo. (See also...) Figure 7 , 1011, which includes a pointed conical folding plate 1021, and three support columns 1022 connected to and fixed at the bottom of the folding plate inside the silo.

[0049] The aforementioned grain silo anti-breakage and anti-grading lifting system includes a suspension and fixing device installed inside the silo. (See attached image.) Figure 1 , 4 8, 9, The suspension and fixing device includes 1-2 pairs of hooks 5 that are suspended inside the silo by a steel wire rope and are symmetrically arranged on the side of the silo inside the silo. The upper part of the steel wire rope is connected to the top of the silo. A ring of protruding ribs 1023 is provided on the outer wall of the silo inside the silo. The hooks hook the protruding ribs to fix the silo inside the silo.

[0050] The grain silo anti-breakage and anti-grading lifting system includes a material distribution valve that can be remotely controlled pneumatic valve installed on the material distribution pipe; multiple metal telescopic sleeves are arranged in a linear, triangular or regular polygonal layout according to the number of installed sleeves.

[0051] For multiple drive systems, a portion of the steel wire ropes can be fitted with metal telescopic sleeves.

[0052] The operation method of the grain silo anti-breakage and anti-grading lifting system includes the following steps:

[0053] (1) First, the lifting system drives the wire rope to raise the transfer silo 101 to the highest position inside the silo;

[0054] (2) Then, when the grain in the transfer silo is filled to about 50%, the discharge valve 103 is opened and the grain falls into the uppermost and innermost section of the metal telescopic sleeve feeding pipe 3.

[0055] (3) When the top section of the sleeve is filled with about 70%-90% grain, the lifting system drives the wire rope to lower the height of the silo 102 in the warehouse by one section of the sleeve, so that the metal telescopic sleeve feeding pipe pulls out one section of the outer sleeve, which is also the second section of the sleeve counting from the top section of the sleeve. When the second section of the sleeve is filled with about 70%-90% grain, the lifting system drives the wire rope to lower the height of the silo 102 in the warehouse by another section of the sleeve, so that the metal telescopic sleeve feeding pipe pulls out one section of the outer sleeve, which is also the third section of the sleeve counting from the top section of the sleeve. When the third section of the sleeve is filled with about 70%-90% grain, the height of the silo in the warehouse continues to be lowered, and this process is repeated.

[0056] (4) Following the above operation method, when the silo inside the warehouse is lowered to the lowest position inside the silo, the material distribution pipe at the bottom of the silo inside the warehouse is 1-4 meters away from the ground of the grain silo. Open the discharge valve 301 set at the bottom of the metal telescopic sleeve type feeding pipe so that the grain in the sleeve enters the silo inside the warehouse. Then open the material distribution valve on the material distribution pipe (when a material distribution valve is provided), and the grain falls evenly to the ground of the grain silo through the material distribution pipe inside the warehouse.

[0057] (5) When the grain in the grain silo is 0.5-1 meter away from the feeding pipe inside the silo, the lifting system drives the wire rope to raise the height of the silo inside the silo, and at the same time continuously transports the grain into the grain silo through the metal telescopic sleeve feeding pipe; during the process of raising the height of the silo inside the silo, in the opposite direction to the descent, the metal telescopic sleeve feeding pipe gradually shortens its length by inserting the outer sleeve into the inner sleeve.

[0058] (6) After the grain storage operation is completed, first use the hanging and fixing device, see Figure 4 Secure the lifting fabric placing machine and the metal telescopic sleeve feeding pipe;

[0059] (7) Then, first disconnect the steel wire rope on the elevator from the silo inside the warehouse, and then lift it to the top of the grain silo.

[0060] (8) The steel wire rope passage at the top of the grain silo is temporarily sealed.

[0061] (9) When the grain silo is filled with grain again, the wire rope channel is reopened and the wire rope is reinstalled on the top of the silo inside the silo.

[0062] The operation method of the grain silo anti-breakage and anti-grading lifting system includes controlling the flow rate and velocity of grain in the metal telescopic sleeve feeding pipe by controlling the opening and closing of the discharge valve 103, discharge valve 301, and the valve opening degree, thereby reducing grain breakage.

[0063] The specific embodiments of the present invention will be further described in detail below:

[0064] See Figure 1 Above the grain silo inlet, a transfer silo 101 is installed. The volume of the transfer silo is 2 cubic meters to 10 cubic meters. A valve 103 is installed at the discharge port of the transfer silo.

[0065] The top surface of the grain silo is equipped with a winch for drive system 201. The number of winches installed is 2-4.

[0066] Three sets of metal telescopic sleeves 202 are installed on the upper part of the silo inside the warehouse, forming a triangular layout for fixing the silo inside the warehouse. (See attached image) Figure 1 , 6The triangular layout structure is stable. The upper part of the metal telescopic sleeve is fixed to the top of the silo. The bottom of the metal telescopic sleeve is fixedly installed on the top wall of the silo inside the silo. The wire rope 203 of the winch passes through the metal telescopic sleeve and is connected at the bottom to the silo 102 inside the silo. The wire rope pulls the silo inside the silo to move up and down.

[0067] The lower part of the silo inside the warehouse is equipped with a grain distribution pipe 104 for spreading grain. A distribution valve can be installed on the distribution pipe, or it can be left uninstalled (the diagram shows the option without a valve). The volume of the silo inside the warehouse ranges from 2 cubic meters to 10 cubic meters.

[0068] The lower part of the silo is equipped with an internal distribution pipe. 4-20 sets of the 104 internal distribution pipe can be installed. The length of the internal distribution pipe ranges from 0.5 meters to 12 meters. See [link / details]. Figure 1 The upper distribution pipe is longer than the lower distribution pipe to reduce the spreading height. The angle between the distribution pipe inside the bin and the ground is 30-90 degrees to ensure even spreading.

[0069] See Figure 7 The grain dispersing device is a conical folding plate installed in the middle of the silo inside the warehouse.

[0070] See Figure 4 , 7 As shown in Figures 8 and 9, a suspended fixing device is installed on the inner wall of the top of the grain silo. After the grain loading operation is completed, the silo inside the silo rises to the top, and the suspended fixing device is first used manually to fix the silo inside the silo and the metal telescopic sleeve.

[0071] To prevent thermal bridging in the grain silos, the lifting platform's material distribution device is secured by a suspension device. The steel wire rope on the lifting platform is first detached from the silo inside the silo, and then lifted to the top of the grain silo.

[0072] After the wire rope is lifted to the top of the grain silo, the wire rope channel is temporarily sealed.

[0073] When the grain silo is filled with grain again, the wire rope channel is reopened and the wire rope is reinstalled on top of the silo inside the silo.

[0074] The operating method of the device of the present invention includes the following steps:

[0075] (1) First, the lifting system drives the wire rope to raise the transfer silo 101 to the highest position inside the silo;

[0076] (2) Then, when the grain in the transfer silo is filled to about 50%, the discharge valve 103 is opened and the grain falls into the uppermost and innermost section of the metal telescopic sleeve feeding pipe 3.

[0077] (3) When the top section of the sleeve is filled with about 70%-90% grain, the lifting system drives the wire rope to lower the height of the silo 102 in the warehouse by one section of the sleeve, so that the metal telescopic sleeve feeding pipe pulls out one section of the outer sleeve, which is also the second section of the sleeve counting from the top section of the sleeve. When the second section of the sleeve is filled with about 70%-90% grain, the lifting system drives the wire rope to lower the height of the silo 102 in the warehouse by another section of the sleeve, so that the metal telescopic sleeve feeding pipe pulls out one section of the outer sleeve, which is also the third section of the sleeve counting from the top section of the sleeve. When the third section of the sleeve is filled with about 70%-90% grain, the height of the silo in the warehouse continues to be lowered, and this process is repeated.

[0078] (4) Following the above operating procedure, when the silo inside the warehouse is lowered to its lowest position within the silo, the material distribution pipe at the bottom of the silo is 1-4 meters from the ground of the grain silo. First, open the discharge valve 301 at the bottom of the metal telescopic sleeve type feeding pipe to allow the grain in the sleeve to enter the silo inside the warehouse (when a material distribution valve is provided). Then, open the material distribution valve on the material distribution pipe (see [link to relevant documentation] when no material distribution valve is provided). Figure 1 (This step can be omitted) The grain falls evenly onto the floor of the grain silo through the distribution pipe inside the silo.

[0079] (5) When the grain in the grain silo is 0.5-1 meter away from the feeding pipe inside the silo, the lifting system drives the wire rope to raise the height of the silo inside the silo, and at the same time continuously transports the grain into the grain silo through the metal telescopic sleeve feeding pipe; during the process of raising the height of the silo inside the silo, in the opposite direction to the descent, the metal telescopic sleeve feeding pipe gradually shortens its length by sliding the outer sleeve into the inner sleeve.

[0080] (6) After the grain storage operation is completed, the lifting cloth machine and the metal telescopic sleeve feeding pipe are first fixed manually by the suspension fixing device.

[0081] (7) Then, first disconnect the steel wire rope on the elevator from the silo inside the warehouse, and then lift it to the top of the grain silo.

[0082] (8) The steel wire rope passage at the top of the grain silo is temporarily sealed.

[0083] (9) When the grain silo is filled with grain again, the wire rope channel is reopened and the wire rope is reinstalled on the top of the silo inside the silo.

[0084] (10) By controlling the opening and closing of the valve at the connection between the metal telescopic sleeve feeding pipe and the silo inside the warehouse, the flow rate and velocity of grain in the metal telescopic sleeve feeding pipe are controlled, thereby reducing grain breakage.

[0085] The types of drive systems selected for the lifting system of this invention include:

[0086] Forced hoist: Uses an electric winch as the main drive unit. It mainly consists of a drive motor, cage (hopper), wire rope, electrical system, control system, and safety protection system, and is a traditional technology.

[0087] The winch portion of the drive system is installed on the outside of the top of the grain silo. The electrical and control systems are also installed outside the vertical silo. Wire ropes connect to the inner silos inside the grain silo through a wire rope channel at the top of the vertical silo (the opening at the top of the silo), allowing the wire ropes to move the inner silos up and down.

[0088] The lower part of the inner silo is equipped with an inner-silo distribution pipe. The connection between the distribution pipe and the inner silo can be equipped with a remotely controlled valve, or optional. 4-20 sets of distribution pipes can be installed. The length of the distribution pipe ranges from 1 to 12 meters. The inclination angle between the distribution pipe and the ground ranges from 30 to 90 degrees to facilitate even distribution. A conical baffle-type grain dispersing device is installed in the middle of the inner silo. The volume of the inner silo ranges from 2 cubic meters to 10 cubic meters.

[0089] See Figure 1 , 4 As shown, a hanging fixing device is installed on the inner wall of the top of the grain silo. After the grain loading operation is completed, see... Figure 4 As shown, the silo inside the warehouse is first raised to the highest point of the warehouse top and then fixed in place by a suspension fixing device.

[0090] To prevent thermal bridging in the grain silos, the silos inside are secured by a suspension device. Then, the steel cable on the elevator is first detached from the silos inside the silos and then lifted to the top of the grain silos.

[0091] After the wire rope is lifted to the top of the grain silo, the wire rope channel is temporarily sealed.

[0092] When the grain silo is filled with grain again, the wire rope channel is reopened and the wire rope is reinstalled on top of the silo inside the silo.

[0093] The metal telescopic sleeve of this invention consists of multiple layers of sleeves. The size of the metal telescopic sleeve can be changed by adjusting the diameter and length of the pipes. The length and diameter of the metal telescopic sleeve can be adjusted as needed. The length of the metal telescopic sleeve can be selected from 1 meter to 6 meters. The diameter of the metal telescopic sleeve can be selected from 10 centimeters to 100 centimeters.

[0094] Metal expansion sleeves mainly serve the following functions:

[0095] 1. Serves as a limit track and support for the lifting system:

[0096] The upper part of the metal telescopic sleeve is fixed to the top of the silo, and the lower part is fixed to the top of the hopper inside the silo. This ensures that the hopper inside the silo can move smoothly up and down without shaking. A non-metallic telescopic protective sleeve can be added to the outside of the metal telescopic sleeve to prevent dust from entering the connection points of the metal telescopic sleeve.

[0097] Metal expansion sleeves can be installed in two, three, or four sets.

[0098] 2. The function of the wire rope dustproof protective sleeve in the lifting system:

[0099] The hoist's wire rope passes through a metal telescopic sleeve, and its bottom is connected to the pulley above the hopper inside the warehouse. This sleeve also serves as a dustproof protective cover for the wire rope.

[0100] 3. See Figure 2 , 3 As shown, the metal telescopic sleeve type feeding pipe also adopts a metal telescopic sleeve connection structure. The fixed end of the uppermost pipe body of the metal telescopic sleeve type feeding pipe 3 is connected to the top of the silo (e.g., Figure 1 When the transfer hopper is outside the silo, or at the bottom of the transfer hopper (not shown in the diagram when the transfer hopper is inside the silo), and connected to the bottom discharge port of the transfer hopper, the fixed end of the lowest tube of the metal telescopic sleeve type feeding pipe 3 is connected to the top discharge port of the silo inside the silo (see figure). Figure 7 The metal telescopic sleeve type feeding pipe has a through-hole structure inside, forming a telescopic conveying pipeline, which can directly transport grain. The length of the metal telescopic sleeve type feeding pipe is matched with that of the metal telescopic sleeve to facilitate synchronous extension and retraction.

[0101] The valve of this invention:

[0102] A valve is installed at the upper part of the metal telescopic sleeve type feeding pipe 3 connected to the transfer silo, and a discharge valve 301 is installed at the lower part of the metal telescopic sleeve type feeding pipe 3 connected to the silo inside the silo, so as to facilitate the control of the grain flow rate and flow rate inside the metal telescopic sleeve type feeding pipe.

[0103] Valve types include gate valves, butterfly valves, ball valves, and slide gate valves. Valve operation methods include electric and pneumatic. Valves can be remotely controlled.

[0104] By controlling the opening and closing of the valves at the connection between the metal telescopic sleeve feeding pipe and the silo inside the warehouse, the flow rate and velocity of grain in the metal telescopic sleeve feeding pipe can be controlled, thereby reducing grain breakage.

[0105] Example 1:

[0106] The technical solution of this invention is specifically implemented in a shallow circular warehouse with a diameter of 30 meters and a height of 29 meters from the ground to the eaves:

[0107] First, install a 5-cubic-meter transfer silo directly above the feed inlet of the shallow circular silo. The scraper conveyor can directly transport the grain into the transfer silo.

[0108] Below the transfer silo, a vertical metal telescopic feeding pipe is installed in the center of the shallow circular silo. The uppermost tube of the metal telescopic feeding pipe has a diameter of 30 centimeters, and a total of 6 metal telescopic tubes are installed, each 4 meters long. The upper part of the metal telescopic tube connects to the transfer silo, and a remotely controllable pneumatic valve is installed at the connection point. The lower part of the metal telescopic tube connects to the silo inside the transfer silo, and a remotely controllable pneumatic valve is installed at the connection point between the metal telescopic tube and the silo inside the transfer silo.

[0109] Two winches are installed on the top of the shallow circular silo. The wire ropes of the winches pass through the top of the shallow circular silo, then through the metal telescopic sleeve of the fixed support, and connect to the material hopper at the bottom of the silo.

[0110] A fixed support metal telescopic sleeve is located at the edge of the silo inside the bin. The upper part of the fixed support metal telescopic sleeve is fixed to the top of the shallow circular silo. The bottom part of the fixed support metal telescopic sleeve is fixedly installed at the top edge of the silo inside the bin. The diameter of the uppermost section of the metal telescopic sleeve is 15 cm.

[0111] The volume of the silo inside the warehouse is 5 cubic meters. At the bottom of the silo, 16 distribution pipes are installed. The lengths of the distribution pipes are 4 x 7 meters, 4 x 4 meters, 4 x 2 meters, and 4 x 1 meter.

[0112] A conical folding plate type grain dispersing device is installed in the middle of the silo inside the warehouse.

[0113] A suspension and fixing device is installed on the inner wall of the top of the shallow circular silo.

Claims

1. A grain silo anti-breakage and anti-grading lifting system, comprising a silo, a lifting system, and a lifting and spreading machine, characterized in that, The lifting material distribution machine (1) includes a transfer hopper (101), an inner hopper (102), and a metal telescopic sleeve type feeding pipe (3); the transfer hopper is installed above the top inlet of the silo or suspended below the top inlet of the silo, and the inner hopper is located inside the silo (400); the inner hopper corresponds to the center position of the transfer hopper; the bottom discharge port of the transfer hopper is provided with a discharge valve (103) to allow material to enter the silo, and a material distribution pipe (104) is installed at the bottom of the inner hopper; The lifting system (2) includes a drive system (201) and a metal telescopic sleeve (202); the drive system includes a steel wire rope (203), the drive system is installed in the top area outside the silo, and the steel wire rope enters the silo from the top entrance; at least two metal telescopic sleeves are erected parallel inside the silo and arranged at the edge of the silo inside the silo, the metal telescopic sleeves are connected from top to bottom by multiple layers of sleeves with increasing diameter, and adjacent layers of sleeves are connected by a flange-shaped outer flange (202) at the bottom end of the inner sleeve. 21) The flange-shaped inner flange (2022) at the top of the outer sleeve is hooked and limited, and each inner sleeve can slide into its outer sleeve. The bottom of each sleeve is closed. The top of the inner sleeve with the smallest diameter of the metal telescopic sleeve is fixed to the top of the silo, and the bottom of the outer sleeve with the largest diameter is fixed to the top edge wall of the silo to form a telescopic support. The wire rope passes through the top of the metal telescopic sleeve and out from the bottom, and is connected to the pulley fixed on the inner edge wall of the silo to drive the silo to move up and down. Inside the silo, below the transfer silo, a vertical metal telescopic sleeve-type feeding pipe (3) is installed, coaxial with the center line of the transfer silo. The metal telescopic sleeve-type feeding pipe is connected from top to bottom by multiple layers of sleeves with increasing diameter. The inner and outer sleeves of the metal telescopic sleeve-type feeding pipe are connected in the same way as the inner and outer sleeves of the metal telescopic sleeve. The uppermost and lowermost fixed ends of the metal telescopic sleeve-type feeding pipe are respectively connected to the top of the silo or the bottom of the transfer silo, and inside the silo. The top discharge port of the silo, the metal telescopic sleeve type feeding pipe is internally connected to form a telescopic conveying pipe, the bottom discharge port of the transfer silo is connected to the upper discharge port of the metal telescopic sleeve type feeding pipe, the discharge valve (103) is a remotely controlled pneumatic valve; the metal telescopic sleeve type feeding pipe and each sleeve of the metal telescopic sleeve are symmetrically arranged in length and synchronously extend and retract to the same height; the bottom end of the metal telescopic sleeve type feeding pipe is provided with a discharge valve (301) which is a remotely controlled pneumatic valve.

2. A breakage and raterestraining elevator system for a grain silo as defined in claim 1, wherein, The lower part of the material hopper is equipped with 4-20 sets of material distribution pipes connected to the inside of the hopper, and the length of the material distribution pipes is 0.5 meters to 12 meters.

3. A breakage and raterestrained elevator system for a grain silo as defined in claim 1, wherein, The grain dispersing device is installed in the middle of the silo, which includes a conical folding plate (1021) with a pointed top and three support columns (1022) connected and fixed to the bottom of the silo.

4. A breakage and raterestraining elevator system for a grain silo as defined in claim 1, wherein, The silo is equipped with a suspension and fixing device, which includes 1-2 pairs of hooks (5) that are symmetrically arranged on the side of the silo inside the silo and are suspended by a steel wire rope. The upper part of the steel wire rope is connected to the top of the silo. A ring of protruding ribs (1023) is provided on the outer wall of the silo inside the silo, and the hooks hook the protruding ribs to fix the silo inside the silo.

5. A breakage and raterestrained elevator system for a grain silo as defined in claim 1, wherein, The fabric distribution pipe is equipped with a remotely controlled pneumatic valve; the multiple metal telescopic sleeves are arranged in a linear, triangular, or regular polygonal layout according to the number of installations.

6. The method of operating a non-shattering, non-sorting elevator system for a grain silo as described in claim 1, wherein, Includes the following steps: (1) First, the lifting system drives the wire rope to raise the transfer silo (101) to the highest position inside the silo; (2) Then, when the grain in the transfer silo is filled to about 50%, the discharge valve (103) is opened and the grain falls into the uppermost and innermost section of the metal telescopic sleeve feeding pipe (3). (3) When the top section of the sleeve is filled with about 70%-90% grain, the lifting system drives the wire rope to lower the height of the silo (102) in the warehouse by one section of the sleeve, so that the metal telescopic sleeve feeding pipe pulls out one section of the outer sleeve, which is also the second section of the sleeve counting from the top section of the sleeve. When the second section of the sleeve is filled with about 70%-90% grain, the lifting system drives the wire rope to lower the height of the silo (102) in the warehouse by another section of the sleeve, so that the metal telescopic sleeve feeding pipe pulls out one section of the outer sleeve, which is also the third section of the sleeve counting from the top section of the sleeve. When the third section of the sleeve is filled with about 70%-90% grain, the height of the silo in the warehouse continues to be lowered, and so on. (4) Following the above operation method, when the silo inside the warehouse is lowered to the lowest position inside the silo, the material distribution pipe at the bottom of the silo inside the warehouse is 1-4 meters away from the ground of the grain silo. Open the discharge valve (301) set at the bottom of the metal telescopic sleeve type feeding pipe so that the grain in the sleeve enters the silo inside the warehouse. Then open the material distribution valve on the material distribution pipe (when the material distribution valve is provided), and the grain falls evenly to the ground of the grain silo through the material distribution pipe inside the warehouse. (5) When the grain in the grain silo is 0.5-1 meter away from the feeding pipe inside the silo, the lifting system drives the wire rope to raise the height of the silo inside the silo, and at the same time continuously transports the grain into the grain silo through the metal telescopic sleeve feeding pipe; during the process of raising the height of the silo inside the silo, in the opposite direction to the descent, the metal telescopic sleeve feeding pipe gradually shortens its length by inserting the outer sleeve into the inner sleeve. (6) After the grain storage operation is completed, first fix the lifting cloth machine and the metal telescopic sleeve feeding pipe by means of the hanging fixing device. (7) Then, first disconnect the steel wire rope on the elevator from the silo inside the warehouse, and then lift it to the top of the grain silo. (8) The steel wire rope passage at the top of the grain silo is temporarily sealed. (9) When the grain silo is filled with grain again, the wire rope channel is reopened and the wire rope is reinstalled on the top of the silo inside the silo.

7. A method of operating a breakage and raterestraining elevator system for a grain silo as claimed in claim 6, characterised in that, By controlling the opening and closing of the discharge valve (103), discharge valve one (301), and the opening degree of the valve, the flow rate and velocity of the grain in the metal telescopic sleeve type feeding pipe are controlled, thereby reducing grain breakage.

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