Fumigation pipeline system of grain storage barn

Abstract

The invention discloses a grain storage barn fumigation pipeline system which comprises a grain storage barn, a circulation fumigation pipeline assembly, an air adjusting valve assembly, a circulation fan and an aluminum phosphide medicine feeding mechanism, the circulation fumigation pipeline assembly is installed on the outer wall of the grain storage barn, and ventilation ground cage openings are symmetrically formed in the lower portion of the circulation fumigation pipeline assembly; the air adjusting valve assembly and the circulation fan are both connected with the circulation fumigation pipeline assembly, the aluminum phosphide medicine feeding mechanism comprises a containing barrel and a medicine feeding assembly used for evenly feeding aluminum phosphide tablets, and the medicine feeding assembly is rotationally arranged in an inner cavity of the containing barrel and comprises a rotating disc and an aluminum phosphide containing assembly used for containing the aluminum phosphide tablets. The circulating fumigation pipeline assembly is matched with the air adjusting valve assembly, the circulating fan and the aluminum phosphide medicine feeding mechanism, and effective phosphine circulating fumigation insecticidal treatment can be carried out on grains in the grain storage bin.

Description

Technical Field

[0001] The present invention relates to the technical field of granary circulation systems, and in particular to a granary fumigation pipeline system. Background Art

[0002] With the continuous expansion of grain production and the increasing awareness of grain quality and safety, grain storage equipment is playing an increasingly important role in agricultural production. In recent years, circulating fumigation technology, nitrogen gas conditioning, and carbon dioxide gas conditioning technology have been continuously used in the traditional grain industry, laying a solid foundation for scientific and green grain storage. However, in the grain storage process, each technology operates independently without integration, resulting in messy pipes in the granary, increased enterprise management costs, and complex systems. In existing technologies, most of the manual dosing methods are used to add aluminum phosphide tablets, which is a relatively cumbersome process. Aluminum phosphide tablets are highly toxic, and the use of manual dosing methods will also increase the risk of human exposure to aluminum phosphide tablets.

[0003] After searching, the invention patent document with announcement number CN102524383B discloses a granary circulating fumigation system and method thereof, including at least one group of circulation devices, which include a return pipe, a circulation fan, a gas distribution box and a ground cage; the top of the return pipe is arranged on the upper part of the grain surface, and the lower part of the return pipe is connected to one end of the circulation fan; the other end of the circulation fan is connected to the first ventilation port of the outside through a first valve, and is connected to the gas distribution box through a third valve; the gas distribution box is connected to the second ventilation port of the outside through a second valve; the ground cage is arranged at the bottom of the granary and is connected to the gas distribution box.

[0004] The circulation pipes arranged in the warehouse of the above-mentioned circulation fumigation system are relatively simple in distribution, and the integration of multiple gas-controlled technologies cannot be achieved, and the insecticide efficiency is low; in the above-mentioned grain silo circulation fumigation method, the method of adding medicine to the ventilation holes is adopted, and the process is relatively cumbersome. Summary of the Invention

[0005] The purpose of the present invention is to provide a grain storage bin fumigation pipeline system, which can adjust the air intake state of carbon dioxide and nitrogen through an atmosphere-controlled valve component, a circulating fan and a ventilation cage opening, integrate multi-atmosphere-controlled technology, and cooperate with a circulating fumigation pipeline component and an aluminum phosphide release mechanism to perform circulating fumigation and insecticide treatment on the grain in the grain storage bin.

[0006] The present invention adopts the following technical solutions: A grain storage silo fumigation pipeline system includes a grain storage silo, a circulating fumigation pipeline assembly, an atmosphere-controlled valve assembly, a circulating fan, and an aluminum phosphide dispensing mechanism. The circulating fumigation pipeline assembly is mounted on the outer wall of the grain storage silo. Ventilation cage openings are symmetrically arranged below the circulating fumigation pipeline assembly. The ventilation cage openings are mounted on the ground and communicate with the interior of the grain storage silo. The aluminum phosphide dispensing mechanism is arranged on the surface of a grain pile in the grain storage silo. The atmosphere-controlled valve assembly and the circulating fan are both connected to the circulating fumigation pipeline assembly. The aluminum phosphide dispensing mechanism includes a placement cylinder and a dosing assembly for evenly dispensing aluminum phosphide tablets. The dosing assembly is rotatably arranged in the inner cavity of the placement cylinder. The dosing assembly comprises a rotating disk and an aluminum phosphide placing assembly for placing aluminum phosphide tablets.

[0007] Optionally, the circulating fumigation pipe assembly includes two vertically arranged circulating pipes 1, a horizontally arranged circulating pipe 2, a vertically arranged circulating pipe 3, a horizontally arranged circulating pipe 4, a vertically arranged circulating pipe 5, a horizontally arranged circulating pipe 6, and a vertically arranged circulating pipe 7 that are connected to each other.

[0008] Optionally, the gas control valve assembly includes valve one, valve two, valve three, valve four, valve five, valve six and valve seven.

[0009] Optionally, the lower end of the circulation pipe three is connected to the nitrogen return air duct, the lower end of the circulation pipe five is connected to the nitrogen air inlet duct, the lower end of the circulation pipe seven is connected to the carbon dioxide air inlet duct, the upper end of the circulation pipe five passes through the side wall of the grain storage bin and communicates with the inner cavity of the grain storage bin, and the upper end opening of the circulation pipe five is located 20 cm above the surface of the grain pile.

[0010] Optionally, a plurality of inclined slide rails are fixedly arranged in a circle on the circumferential surface of the placing cylinder, a medicine dropping opening is opened at a position on the circumferential surface of the placing cylinder corresponding to the upper end of the slide rail, the slide rail is connected with the inner cavity of the placing cylinder through the medicine dropping opening, a horizontal medicine placing cylinder is fixedly arranged at the lower end of the slide rail, a detachable medicine placing frame is placed in the medicine placing cylinder, a matching cover plate is installed above the slide rail, and a porous plate fixed to the cover plate is arranged above the medicine placing cylinder.

[0011] Optionally, a groove communicating with the medicine dropping opening is provided on the upper end of the circumferential surface of the placement tube, and a sealing plate for closing the medicine dropping opening is slidably arranged in the groove, and a slope is provided on the lower end surface of the sealing plate. A compression spring is symmetrically fixed on the upper end of the sealing plate, and the compression spring is fixed to the placement tube.

[0012] Optionally, a baffle is fixedly provided on the lower surface of the cover plate near the porous plate, and a rotating plate is provided below the baffle. Both the baffle and the rotating plate are vertically arranged, and the rotating plate rotates with the slide rail. The upper end surface of the rotating plate rotates on the arc surface below the baffle, and the lower end surface of the rotating plate is set as a slope, and the inclination angle of the slope is adapted to the slide rail.

[0013] Optionally, a support plate is provided below the placement barrel, the support plate and the medicine placement barrel are on the same horizontal plane, an insertion rod is fixedly provided on the lower surface of the support plate, a support rod is fixedly provided on the upper surface of the support plate, a motor frame is fixedly provided on the lower surface of the placement barrel, the motor frame is fixed to the support rod, and a drive motor is fixedly installed in the motor frame.

[0014] Optionally, the rotating disk is rotatably arranged in the inner cavity of the placing cylinder, the output shaft of the driving motor passes through the lower end surface of the placing cylinder and is fixed to the rotating disk, and the upper surface of the rotating disk is provided with an electric push rod and a medicine pushing rod, and the medicine pushing rod is composed of a vertically arranged connecting plate, a symmetrically arranged push rod one, an arc rod and a push rod two. The connecting plate is fixed to the output end of the electric push rod, and the upper surface of the rotating disk is symmetrically provided with sliding grooves, and the protrusions under the connecting plate slide in the sliding grooves. The diameter of the arc rod is adapted to the diameter of the aluminum phosphide tablets, and the distance between the two push rods is also adapted to the diameter of the aluminum phosphide tablets, and the outer end of the push rod two is provided with a slope, and the thickness of the push rod two is adapted to the thickness of the aluminum phosphide tablets.

[0015] Optionally, the aluminum phosphide placement assembly includes a drug placement cartridge and a second sealing cover, the second sealing cover is arranged on the upper end of the drug placement cartridge and is threadedly engaged, the inner surface of the second sealing cover is fixedly provided with a drug pressing spring, the lower end surface of the drug pressing spring is fixedly provided with a pressure plate that slides in the inner cavity of the drug placement cartridge, an arc-shaped through groove is provided on the circumferential surface below the drug placement cartridge, the height of the through groove is adapted to the thickness of the aluminum phosphide tablet, a threaded groove is provided on the upper surface of the rotating disk, and the lower end of the drug placement cartridge is threadedly engaged with the threaded groove.

[0016] In summary, the present invention has the following beneficial effects: 1. In the present invention, the intake state of carbon dioxide and nitrogen is adjusted by the gas-controlled valve assembly, the circulating fan and the ventilation cage opening, and the circulating fumigation pipeline assembly and the aluminum phosphide dispensing mechanism are used to perform circulating fumigation and pest control on the grain in the grain storage bin. The multi-gas-controlled technology is integrated to greatly improve the pest control efficiency. 2. In the present invention, the gas in the grain storage bin can be effectively converted through the gas-controlled valve assembly, the circulating fan, the circulating fumigation pipe assembly and the ventilation cage opening, so that the carbon dioxide in the grain storage bin is evenly distributed; 3. In the present invention, nitrogen is extracted and charged through the nitrogen return air duct and the nitrogen inlet duct, realizing a circulation mode of extracting air from the ventilation cage opening and charging nitrogen on the grain surface; 4. In the present invention, the aluminum phosphide tablets are evenly placed on the surface of the grain pile through the aluminum phosphide dispensing mechanism, and the aluminum phosphide tablets will not come into direct contact with the grain, thus eliminating the tedious process of manual dosing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the circulating fumigation pipeline assembly of the present invention; Figure 3 It is a structural schematic diagram of the aluminum phosphide dispensing mechanism of the present invention; Figure 4 This is a schematic structural diagram of the drug delivery assembly of the present invention; Figure 5 It is a structural schematic diagram of the rotating disk of the present invention; Figure 6 It is a structural schematic diagram of the medicine pushing rod of the present invention; Figure 7 This is a schematic structural diagram of the aluminum phosphide placement assembly of the present invention; Figure 8 A cross-sectional view of an aluminum phosphide placement assembly according to the present invention; Figure 9 is a cross-sectional view of the aluminum phosphide dispensing mechanism of the present invention; Figure 10 For the present invention Figure 9 A detailed enlarged view of point A; Figure 11 For the present invention Figure 9 A magnified view of the detail at point B; Figure 12 For the present invention Figure 9 Enlarged detail of point C.

[0018] In the figure, 1. Grain storage bin; 2. Ventilation cage opening; 3. Circulation fumigation duct assembly; 31. Circulation pipe 1; 32. Circulation pipe 2; 33. Circulation pipe 3; 331. Nitrogen return air duct; 34. Circulation pipe 4; 35. Circulation pipe 5; 351. Nitrogen inlet duct; 36. Circulation pipe 6; 37. Circulation pipe 7; 371. Carbon dioxide inlet duct; 4. Gas control valve assembly; 41. Valve 1; 42. Valve 2; 43. Valve 3; 44. Valve 4; 45. Valve 5; 46. Valve 6; 47. Valve 7; 5. Circulation fan; 6. Aluminum phosphide release mechanism; 61. Placement tube; 611. Sealing cover 1; 612. Groove; 613. Medicine drop port; 62. Slide rail; 621. Medicine cartridge; 622. Medicine placing frame; 63. Cover plate; 631. Perforated plate; 632. Baffle; 633. Rotating plate; 64. Sealing plate; 641. Compression spring; 65. Motor frame; 651. Driving motor; 7. Support plate; 71. Insert rod; 72. Support rod; 81. Rotating disk; 811. Slide groove; 812. Threaded groove; 82. Electric push rod; 83. Medicine pushing rod; 831. Connecting plate; 832. Push rod 1; 833. Arc rod; 834. Push rod 2; 9. Aluminum phosphide placement assembly; 91. Medicine cartridge; 911. Through groove; 92. Sealing cover 2; 93. Medicine pressing spring; 94. Pressing plate; 95. Aluminum phosphide tablet. DETAILED DESCRIPTION

[0019] The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments of the present invention.

[0020] See also Figure 1-12 The present invention will be described in detail below with reference to the accompanying drawings and embodiments: like Figure 1-3 As shown, a grain storage bin fumigation pipeline system includes a grain storage bin 1, a circulating fumigation pipeline assembly 3, an atmosphere control valve assembly 4, a circulating fan 5 and an aluminum phosphide dispensing mechanism 6, the circulating fumigation pipeline assembly 3 is installed on the outer wall of the grain storage bin 1, and a ventilation cage opening 2 is symmetrically arranged below the circulating fumigation pipeline assembly 3. The ventilation cage opening 2 is installed on the ground and communicates with the interior of the grain storage bin 1, and an exhaust mechanism connected to the ventilation cage opening 2 is installed inside the grain storage bin 1; The aluminum phosphide dispensing mechanism 6 is arranged on the surface of the grain pile in the grain storage bin 1, and adopts the grain surface application method to perform phosphine fumigation and insecticide treatment on the grain in the grain storage bin 1; The atmosphere-controlled valve assembly 4 and the circulating fan 5 are both connected to the circulating fumigation pipe assembly 3. The air intake state of carbon dioxide and nitrogen is adjusted through the atmosphere-controlled valve assembly 4, the circulating fan 5 and the ventilation cage mouth 2, and the aluminum phosphide release mechanism 6 is cooperated to perform circulating fumigation and insecticide treatment on the grain in the grain storage bin 1.

[0021] The ventilation cage opening 2, exhaust mechanism and circulating fan 5 are all prior art and will not be drawn or described in detail here.

[0022] In this embodiment, the aluminum phosphide tablets 95 are evenly distributed on the surface of the grain pile through the aluminum phosphide dispensing mechanism 6, and the aluminum phosphide tablets 95 will not be in direct contact with the grain. After the aluminum phosphide tablets 95 come into contact with the humid air in the grain storage bin 1, they can produce phosphine gas for insecticide treatment.

[0023] like Figure 2 As shown, in this embodiment, the circulating fumigation pipe assembly 3 includes two vertically arranged circulating pipes 1 31, a horizontally arranged circulating pipe 2 32, a vertically arranged circulating pipe 3 33, a horizontally arranged circulating pipe 4 34, a vertically arranged circulating pipe 5 35, a horizontally arranged circulating pipe 6 36, and a vertically arranged circulating pipe 7 37. The above-mentioned circulating pipes are all stainless steel anti-corrosion pipes, and the above-mentioned circulating pipes are connected to each other.

[0024] like Figure 2 As shown, in this embodiment, the connection method of the above-mentioned circulation pipeline is specifically as follows: The two ends of the circulation duct 2 32 are connected with the upper ends of the circulation duct 1 31 on both sides, the lower end of the circulation duct 1 31 is connected with the ventilation cage opening 2 below, the circulation duct 2 32 is connected with the circulation duct 3 33, the left end of the circulation duct 4 34 is connected with the circulation duct 3 33, the right end of the circulation duct 4 34 is connected with the circulation duct 5 35, the left end of the circulation duct 6 36 is connected with the circulation duct 3 33, the right end of the circulation duct 6 36 is connected with the circulation duct 5 35, the upper end of the circulation duct 7 37 is connected with the circulation duct 4 34, the circulation fan 5 is arranged between the circulation duct 4 34 and the circulation duct 6 36, the upper air outlet of the circulation fan 5 is connected with the circulation duct 7 37, and the lower air outlet of the circulation fan 5 is connected with the circulation duct 6 36.

[0025] like Figure 2 As shown, in this embodiment, the lower end of the circulation pipe 3 33 is connected to the nitrogen return air pipe 331 , the lower end of the circulation pipe 5 35 is connected to the nitrogen intake pipe 351 , and the lower end of the circulation pipe 7 37 is connected to the carbon dioxide intake pipe 371 .

[0026] like Figure 2 As shown, in this embodiment, the upper end of the circulation pipe five 35 passes through the side wall of the grain storage bin 1 and communicates with the inner cavity of the grain storage bin 1. The upper end opening of the circulation pipe five 35 is located 20 cm above the surface of the grain pile.

[0027] like Figure 2As shown, in this embodiment, the gas-controlled valve assembly 4 includes valve 1 41 , valve 2 42 , valve 3 43 , valve 4 44 , valve 5 45 , valve 6 46 and valve 7 47 , and all of the above valves are butterfly valves.

[0028] like Figure 2 As shown, in this embodiment, the specific connection method between the above valve and the circulation pipeline is: Valve 1 41 is installed on the left side of the circulation pipe 4 34 and communicates with the circulation pipe 4 34 to control the communication between the circulation pipe 4 34 and the circulation pipe 3 33; The second valve 42 is installed on the right side of the circulation pipe 4 34 and is used to control the connection between the circulation pipe 4 34 and the circulation pipe 5 35; Valve three 43 and valve four 44 are both installed on and communicate with circulation pipe six 36. Valve three 43 is used to control the communication state between the circulation fan 5 and circulation pipe three 33, and valve four 44 is used to control the communication state between the circulation fan 5 and circulation pipe five 35. The valve 5 45 is installed on the circulation pipe 3 33 and communicates with the circulation pipe 3 33 to control the communication state between the circulation pipe 3 33 and the nitrogen return air pipe 331; The valve 6 46 is installed on the circulation pipe 7 37 and communicates with the circulation pipe 7 37 to control the communication state between the circulation pipe 7 37 and the carbon dioxide inlet pipe 371; Valve seven 47 is installed on the circulation pipe five 35 and communicates with the circulation pipe five 35 to control the communication state between the circulation pipe five 35 and the nitrogen inlet pipe 351.

[0029] In this embodiment, the lower end of the nitrogen return air duct 331 is connected to the granary circulation system gas collection mechanism, the lower end of the nitrogen inlet duct 351 is connected to a nitrogen generator for nitrogen filling, and the lower end of the carbon dioxide inlet duct 371 is connected to a device for producing carbon dioxide. The above-mentioned granary circulation system gas collection mechanism, nitrogen generator and carbon dioxide production device are all existing technologies and are not drawn or described in detail here.

[0030] During the controlled atmosphere pest control process, carbon dioxide gas is first injected to quickly reduce the oxygen concentration in the grain storage bin 1. After the carbon dioxide forms a stable low-oxygen environment, nitrogen is injected to achieve uniform oxygen control in the grain storage bin 1. When filling with carbon dioxide, open valve 1 41, valve 6 46 and valve 7 47, close valve 2 42, valve 3 43, valve 44, valve 5 45 and circulation fan 5, and gas is injected from carbon dioxide inlet pipe 371, enters the lower part of the warehouse of grain storage bin 1 through valve 6 46, valve 1 41 and the circulation pipe outside the warehouse and ventilation cage opening 2, and at this time, the upper air in the warehouse of grain storage bin 1 is discharged through valve 7 47 and nitrogen inlet pipe 351 under the action of positive pressure, and the filling of carbon dioxide gas can be achieved; When the carbon dioxide concentration in the upper part of the granary 1 is low, open valve 2 42, valve 3 43 and circulation fan 5, and close valve 1 41, valve 44, valve 5 45, valve 6 46 and valve 7 47 to achieve uniform distribution of carbon dioxide gas in the granary 1. When filling nitrogen, open valve five 45 and valve seven 47, close valve one 41, valve two 42, valve three 43, valve four 44, valve six 46 and circulation fan 5, and exhaust and fill nitrogen through nitrogen return air duct 331 and nitrogen inlet duct 351, so as to realize the circulation mode of exhausting air from ventilation cage opening 2 and filling nitrogen on grain surface; When the phosphine fumigation mode is in progress, valve one 41, valve four 44 and the circulation fan 5 are opened, and valve two 42, valve three 43, valve five 45, valve six 46 and valve seven 47 are closed, so that the phosphine gas generated by the aluminum phosphide tablets 95 evenly distributed on the grain surface can be passed through the ventilation cage opening 2 and the circulation pipe to realize the phosphine gas circulation fumigation mode, thereby effectively carrying out insecticide treatment.

[0031] Furthermore, according to existing technology, a mixture of carbon dioxide and nitrogen has a significant beneficial effect on phosphine insecticide: Nitrogen reduces oxygen concentration, forcing pests to breathe faster, while carbon dioxide further stimulates the opening frequency of their valves. This dual effect significantly improves the efficiency of phosphine inhalation. Moreover, the diffusion rate of carbon dioxide is much higher than that of nitrogen and phosphine. It can penetrate the grain pile first to form a "gas channel", accelerating the subsequent deep penetration of phosphine.

[0032] like Figure 3-12 As shown, in this embodiment, the aluminum phosphide dispensing mechanism 6 includes a placement cylinder 61 and a dosing assembly. The dosing assembly is installed in the inner cavity of the placement cylinder 61 to place the aluminum phosphide tablets 95 in batches to ensure that the aluminum phosphide tablets 95 on the surface of the grain pile are evenly placed. The upper end of the placement cylinder 61 is threadedly installed with a sealing cap 611. A plurality of inclined slide rails 62 are fixedly arranged in a circle on the circumferential surface of the placement cylinder 61, and a medicine drop opening 613 is opened at a position corresponding to the upper end of the slide rail 62 on the circumferential surface of the placement cylinder 61. The slide rail 62 is connected to the inner cavity of the placement cylinder 61 through the medicine drop opening 613. A horizontal medicine placement cylinder 621 is fixedly arranged at the lower end of the slide rail 62. A detachable medicine placement frame 622 is placed in the medicine placement cylinder 621. The aluminum phosphide tablets 95 enter the slide rail 62 through the medicine dosing component and then slide into the medicine placement frame 622.

[0033] like Figure 6 and Figure 10 As shown, in this embodiment, a groove 612 communicating with the medicine dropping opening 613 is provided on the circumferential surface of the placement tube 61 at the upper end of the medicine dropping opening 613, and a sealing plate 64 for closing the medicine dropping opening 613 is slidably provided in the groove 612, and the lower end surface of the sealing plate 64 is provided with an inclined surface, and a compression spring 641 is symmetrically fixed on the upper end of the sealing plate 64, and the compression spring 641 is fixed to the placement tube 61, and the compression spring 641 is used to squeeze the sealing plate 64 so that the sealing plate 64 closes the medicine dropping opening 613 to prevent the external humid air from affecting the aluminum phosphide tablets 95 in the placement tube 61.

[0034] like Figure 3 As shown, in this embodiment, a matching cover plate 63 is installed above the slide rail 62 to close the slide rail 62. A porous plate 631 fixed to the cover plate 63 is provided above the cartridge 621. The aluminum phosphide tablets 95 are combined with moist air to generate phosphine gas through the holes on the surface of the porous plate 631.

[0035] like Figure 12 As shown, in this embodiment, in order to prevent the generated phosphine gas from flowing back into the slide rail 62, a baffle 632 can be fixedly provided on the lower surface of the cover plate 63 near the porous plate 631, and a rotating plate 633 is provided below the baffle 632. Both the baffle 632 and the rotating plate 633 are vertically arranged. The rotating plate 633 rotates with the slide rail 62 , and the upper end surface of the rotating plate 633 rotates on the arc surface below the baffle 632 . The lower end surface of the rotating plate 633 is set as an inclined surface, and the inclination angle of the inclined surface is adapted to the slide rail 62 .

[0036] Specifically, when the aluminum phosphide tablet 95 slides on the slide rail 62, it will hit the rotating plate 633, causing the rotating plate 633 to rotate at an angle, and then the aluminum phosphide tablet 95 enters the medicine placing frame 622, and then the rotating plate 633 will return to a vertical state and contact the inclined surface of the slide rail 62.

[0037] like Figure 3 and Figure 9As shown, in this embodiment, a support plate 7 is provided below the placement cylinder 61, and the support plate 7 and the medicine placement cylinder 621 are on the same horizontal plane. An insertion rod 71 is fixedly provided on the lower surface of the support plate 7, and the insertion rod 71 is inserted into the grain pile until the support plate 7 contacts the grain surface. A support rod 72 is fixedly provided on the upper surface of the support plate 7, and a motor frame 65 is fixedly provided on the lower surface of the placement cylinder 61. The motor frame 65 is fixed to the support rod 72, and a drive motor 651 is fixedly installed in the motor frame 65. The drive motor 651 is used to drive the dosing component to rotate and dosing.

[0038] like Figure 4 As shown, in this embodiment, the dosing assembly includes a rotating disk 81 and an aluminum phosphide placement assembly 9. The rotating disk 81 is rotatably arranged in the inner cavity of the placement cylinder 61. The output shaft of the drive motor 651 passes through the lower end surface of the placement cylinder 61 and is fixed to the rotating disk 81. The upper surface of the rotating disk 81 is provided with an electric push rod 82 and a medicine pushing rod 83. The electric push rod 82 drives the medicine pushing rod 83 to push the aluminum phosphide tablet 95, so that the aluminum phosphide tablet 95 is pushed onto the slide rail 62.

[0039] like Figure 6 As shown, in this embodiment, the medicine pushing rod 83 is composed of a vertically arranged connecting plate 831, a symmetrically arranged push rod 1 832, an arc rod 833 and a push rod 2 834. The connecting plate 831 is fixed to the output end of the electric push rod 82, and a slide groove 811 is symmetrically opened on the upper surface of the rotating disk 81. The protrusion under the connecting plate 831 slides in the slide groove 811 to ensure the sliding stability of the medicine pushing rod 83.

[0040] like Figure 7-8 As shown, in this embodiment, the aluminum phosphide placement component 9 includes a drug placement barrel 91 and a sealing cover 92. The sealing cover 92 is arranged on the upper end of the drug placement barrel 91 and is threadedly engaged. The inner surface of the sealing cover 92 is fixedly provided with a drug pressing spring 93. The lower end surface of the drug pressing spring 93 is fixedly provided with a pressure plate 94 that slides in the inner cavity of the drug placement barrel 91. An arc-shaped through groove 911 is provided on the circumferential surface below the drug placement barrel 91. The height of the through groove 911 is adapted to the thickness of the aluminum phosphide tablet 95, which facilitates the drug pushing rod 83 to push the aluminum phosphide tablet 95.

[0041] like Figure 7-8 As shown, in this embodiment, after a number of aluminum phosphide tablets 95 are placed in the drug release barrel 91, the sealing cover 92 is tightened. At this time, the lowest aluminum phosphide tablet 95 is located in the through groove 911. Due to the squeezing of the aluminum phosphide tablet 95 by the drug pressing spring 93, the lowest aluminum phosphide tablet 95 will not fall out when the drug release barrel 91 is installed.

[0042] like Figure 5-8As shown, in this embodiment, a thread groove 812 is provided on the upper surface of the rotating disk 81, and the lower end of the drug release cartridge 91 is threadedly engaged with the thread groove 812, and after the drug release cartridge 91 is screwed, the through groove 911 is positioned relative to the drug drop opening 613.

[0043] like Figure 6 As shown, in this embodiment, the diameter of the arc rod 833 is adapted to the diameter of the aluminum phosphide tablet 95, the distance between the two push rods 834 is also adapted to the diameter of the aluminum phosphide tablet 95, and the outer end of the push rod 834 is provided with a bevel, and the thickness of the push rod 834 is adapted to the thickness of the aluminum phosphide tablet 95.

[0044] Specifically, when the driving motor 651 drives the rotating disk 81 to rotate to the position of the corresponding medicine drop port 613, and then starts the electric push rod 82, drives the medicine push rod 83 to push the aluminum phosphide tablets 95, at this time, the push rod 2 834 will push the sealing plate 64 up, and the arc rod 833 will push the aluminum phosphide tablets 95. As the medicine push rod 83 moves, the push rod 2 834 will continue to move toward the slide rail 62 after pushing the sealing plate 64 up, until the arc rod 833 pushes the aluminum phosphide tablets 95 into the slide rail 62. After pushing is completed, the electric push rod 82 drives the medicine push rod 83 to reset, and the sealing plate 64 is reset by the compression spring 641, and the medicine drop port 613 is closed again. With the rotation of the driving motor 651 and the movement of the electric push rod 82, the aluminum phosphide tablets 95 can be evenly distributed on the surface of the grain pile.

[0045] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0046] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0047] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A grain storage silo fumigation piping system, characterized by: It includes a grain storage bin, a circulating fumigation pipe assembly, an atmosphere-controlled valve assembly, a circulating fan and an aluminum phosphide dispensing mechanism. The circulating fumigation pipe assembly is installed on the outer wall of the grain storage bin. Ventilation cage openings are symmetrically arranged below the circulating fumigation pipe assembly. The ventilation cage openings are installed on the ground and communicate with the interior of the grain storage bin. The aluminum phosphide dispensing mechanism is arranged on the surface of the grain pile in the grain storage bin. The atmosphere-controlled valve assembly and the circulating fan are both connected to the circulating fumigation pipe assembly. The aluminum phosphide dispensing mechanism includes a placement cylinder and a dosing assembly for evenly dispensing aluminum phosphide tablets. The dosing assembly is rotatably arranged in the inner cavity of the placement cylinder. The dosing assembly comprises a rotating disk and an aluminum phosphide placing assembly for placing aluminum phosphide tablets.

2. A grain storage silo fumigation piping system according to claim 1, characterized in that: The circulating fumigation pipe assembly includes two vertically arranged circulating pipes 1, a horizontally arranged circulating pipe 2, a vertically arranged circulating pipe 3, a horizontally arranged circulating pipe 4, a vertically arranged circulating pipe 5, a horizontally arranged circulating pipe 6, and a vertically arranged circulating pipe 7 that are connected to each other.

3. The grain storage silo fumigation piping system according to claim 1, characterized in that: The gas control valve assembly includes valve one, valve two, valve three, valve four, valve five, valve six and valve seven.

4. A grain storage silo fumigation piping system according to claim 2, characterized in that: The lower end of the circulation pipe three is connected to the nitrogen return air pipe, the lower end of the circulation pipe five is connected to the nitrogen air inlet pipe, the lower end of the circulation pipe seven is connected to the carbon dioxide air inlet pipe, and the upper end of the circulation pipe five passes through the side wall of the grain storage bin and communicates with the inner cavity of the grain storage bin. The upper end opening of the circulation pipe five is located 20 cm above the surface of the grain pile.

5. The grain storage silo fumigation piping system according to claim 1, characterized in that: A plurality of inclined slide rails are fixedly arranged in a circle on the circumferential surface of the placing cylinder. A medicine dropping opening is opened at a position corresponding to the upper end of the slide rail on the circumferential surface of the placing cylinder. The slide rail is connected with the inner cavity of the placing cylinder through the medicine dropping opening. A horizontal medicine placing cylinder is fixedly arranged at the lower end of the slide rail. A detachable medicine placing frame is placed in the medicine placing cylinder. A corresponding cover plate is installed above the slide rail, and a porous plate fixed to the cover plate is arranged above the medicine placing cylinder.

6. The grain storage silo fumigation piping system according to claim 1, characterized in that: A groove communicating with the medicine dropping opening is provided on the circumferential surface of the placing cylinder at the upper end of the medicine dropping opening, a sealing plate for closing the medicine dropping opening is slidingly arranged in the groove, the lower end surface of the sealing plate is provided with an inclined surface, and a compression spring is symmetrically fixed on the upper end of the sealing plate, and the compression spring is fixed to the placing cylinder.

7. The grain storage silo fumigation piping system according to claim 5, characterized in that: A baffle is fixedly set on the lower surface of the cover plate near the porous plate, and a rotating plate is set below the baffle. The baffle and the rotating plate are both set vertically, and the rotating plate rotates with the slide rail. The upper end surface of the rotating plate rotates on the arc surface below the baffle, and the lower end surface of the rotating plate is set as a slope, and the inclination angle of the slope is adapted to the slide rail.

8. The grain storage silo fumigation piping system according to claim 1, characterized in that: A support plate is provided below the placement barrel, and the support plate and the medicine placement barrel are on the same horizontal plane. A plug rod is fixedly provided on the lower surface of the support plate, and a support rod is fixedly provided on the upper surface of the support plate. A motor frame is fixedly provided on the lower surface of the placement barrel, and the motor frame is fixed to the support rod. A drive motor is fixedly installed in the motor frame.

9. The grain storage silo fumigation piping system according to claim 8, characterized in that: The rotating disk is rotatably arranged in the inner cavity of the placing cylinder, and the output shaft of the driving motor passes through the lower end surface of the placing cylinder and is fixed to the rotating disk. The upper surface of the rotating disk is provided with an electric push rod and a medicine pushing rod. The medicine pushing rod is composed of a vertically arranged connecting plate, a symmetrically arranged push rod one, an arc rod and a push rod two. The connecting plate is fixed to the output end of the electric push rod. The upper surface of the rotating disk is symmetrically provided with slide grooves, and the protrusions under the connecting plate slide in the slide grooves. The diameter of the arc rod is adapted to the diameter of the aluminum phosphide tablets, the distance between the two push rods is adapted to the diameter of the aluminum phosphide tablets, and the outer end of the push rod two is provided with an inclined surface. The thickness of the push rod two is adapted to the thickness of the aluminum phosphide tablets.

10. The grain storage silo fumigation piping system according to claim 1, characterized in that: The aluminum phosphide placement assembly includes a drug placement cartridge and a second sealing cover. The second sealing cover is arranged at the upper end of the drug placement cartridge and is threadedly engaged. A drug pressing spring is fixedly arranged on the inner surface of the second sealing cover. A pressure plate that slides on the inner cavity of the drug placement cartridge is fixedly arranged on the lower end surface of the drug pressing spring. An arc-shaped through groove is provided on the circumferential surface below the drug placement cartridge. The height of the through groove is adapted to the thickness of the aluminum phosphide tablet. A threaded groove is provided on the upper surface of the rotating disk. The lower end of the drug placement cartridge is threadedly engaged with the threaded groove.

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