Low-temperature deinsectization device for granary

Abstract

The utility model relates to the technical field of granary low-temperature deinsectization, in particular to a granary low-temperature deinsectization device which comprises a granary body and a cart frame and is provided with an auxiliary device, cold air conveying can be achieved through mutual cooperation of a centrifugal fan, an air cooler body, an air conveying pipe, a telescopic hose, a connecting pipe and an air supply pipe assembly, and the granary low-temperature deinsectization device is convenient to use. Or the three-way valve can be rotated, so that the auxiliary pipe is communicated with the centrifugal fan, the auxiliary pipe is connected with equipment for supplying carbon dioxide or liquid nitrogen, and the low-temperature carbon dioxide or liquid nitrogen is conveyed into the grains, so that the grains in the granary are cooled and the deinsectization effect is achieved through the two modes; the equipment can be directly pushed into the granary for operation, the mobility of the equipment is fully utilized, convenience and rapidness are achieved, when operation needs to be conducted outside the granary, cooling and deinsectization of grains can be achieved through cooperation of the pre-buried hole assembly and the air supply pipe assembly, and limitation of the internal space of the granary is avoided.

Description

Technical Field

[0001] This utility model relates to the field of low-temperature pest control technology for grain warehouses, and in particular to a low-temperature pest control device for grain warehouses. Background Technology

[0002] Grain warehouses are specialized buildings for storing grain. There are three types of grain warehouses: single-story warehouses, arched warehouses, and multi-story warehouses. Single-story warehouses are the earliest type of warehouse built in my country and have the largest total capacity. They are single-story warehouses with brick and concrete structures, suitable for storing bulk and packaged grains. They have good heat insulation and moisture-proof performance. Arched warehouses have a one-way arch or a double-curved arch roof and can be used as warehouses for bulk or packaged grains. Multi-story warehouses are two-story or higher warehouses. They mostly use reinforced concrete frame structures, which save land and are easy to mechanize, but the cost is higher.

[0003] In our daily work, we have found that when storing grain in existing grain warehouses, the temperature in the grain piles tends to be too high. When the warehouse temperature is above 18-21℃, it is suitable for insect eggs to hatch and reproduce. The activity of pests will decrease below 10℃. When the temperature is too high, pests such as beetles, mites, and moths will appear in the grain warehouse. These pests not only damage a large amount of grain, but also give the grain an unpleasant odor, thus affecting the quality of the grain. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where high temperatures in grain warehouses easily breed pests and affect grain quality, and to propose a low-temperature pest control device for grain warehouses.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a low-temperature insecticidal device for grain storage, comprising a grain storage body and a trolley frame. An auxiliary device is provided on the surface of the trolley frame, comprising a cold air blower and a centrifugal fan mounted on the surface of the trolley frame. A three-way valve is installed between the output end of the cold air blower and the input end of the centrifugal fan. One end of the three-way valve is fixedly connected to an auxiliary pipe. The output end of the centrifugal fan is fixedly connected to an air supply pipe. A fixed frame is provided on the surface of the trolley frame. Four sets of sliding seats are slidably connected to the inner wall of the fixed frame. A connecting pipe is fixedly connected to the inner wall of each sliding seat. An air supply pipe assembly is bolted to one end of each connecting pipe. A telescopic hose is fixedly connected to the other end of the connecting pipe. The other end of the telescopic hose is connected to the air supply pipe. The sliding seats and the fixed frame... Adjustment components are installed between the frames, and multiple pre-drilled holes are provided on the surface of the grain silo. Using these components, when the grain in the silo is low, the equipment can be pushed into the silo using a trolley frame. Then, the air supply pipe assembly is inserted into the grain. A centrifugal fan, in conjunction with a cold air blower, delivers cold air to the air supply pipe. The air supply pipe, through a flexible hose and connecting pipe, delivers the gas to the air supply pipe assembly, which then delivers the cold air to the grain. Alternatively, a three-way valve can be rotated to connect an auxiliary pipe to the centrifugal fan. This auxiliary pipe connects to a device supplying carbon dioxide or liquid nitrogen, delivering low-temperature carbon dioxide or liquid nitrogen to the grain. Both methods achieve cooling and pest control. The air supply pipe assembly can also be inserted through the pre-drilled holes in the grain silo to cool and kill pests in the grain.

[0006] Preferably, the gas supply pipe assembly includes a gas supply pipe body, which is fixed to the connecting pipe by bolts. The surface of the gas supply pipe body is provided with multiple gas supply holes, and a filter sleeve is fixedly connected to the outer surface of the gas supply pipe body. Through the above components, after the gas supply pipe body is inserted into the grain, the filter sleeve can intercept and filter the gas, and then the gas supply pipe body discharges the gas through the gas supply holes for cooling.

[0007] Preferably, the head of the air supply pipe is tapered, and the tapered head of the air supply pipe can be better inserted into the grain.

[0008] Preferably, the adjustment assembly includes a drive motor, which is fixedly connected to the surface of the sliding seat. A drive gear is fixedly connected to the output end of the drive motor, and a rack is fixedly connected to the surface of the fixed frame. The rack is connected through multiple sliding seats, and the drive gear meshes with the rack. With the above components, when in use, turning on the drive motor can drive the drive gear to rotate. The drive gear, in conjunction with the rack, can drive the sliding seat to move up and down on the fixed frame, facilitating adjustment.

[0009] Preferably, the reserved hole assembly includes a reserved sleeve, which is fixedly connected to the inner wall of the grain silo body. A sealing cover is fixedly connected to the outer surface of the reserved sleeve by bolts. With the above components, when it is necessary to cool down and kill insects from the outside of the grain silo body, the sealing cover can be opened and the air supply pipe assembly can be inserted into the grain silo body through the reserved sleeve for cooling and killing insects.

[0010] Preferably, a sealing gasket is fixedly connected to the inner wall of the reserved sleeve. Through the above-mentioned components, when the air supply pipe assembly is inserted into the reserved sleeve, the sealing gasket will fit with the air supply pipe assembly, thereby playing a sealing role.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, by setting an auxiliary device, cold air can be delivered through the cooperation of a centrifugal fan, a cold air unit, an air delivery pipe, a telescopic hose, a connecting pipe, and an air supply pipe assembly. Alternatively, the three-way valve can be turned to connect the auxiliary pipe to the centrifugal fan, and the auxiliary pipe can be connected to a device that supplies carbon dioxide or liquid nitrogen to deliver low-temperature carbon dioxide or liquid nitrogen to the grain. Both methods achieve the cooling of grain in the grain silo and the effect of pest control. When there is little grain in the grain silo, the equipment can be directly pushed into the grain silo for operation, making full use of the equipment's mobility for convenience and speed. When it is necessary to operate outside the grain silo, the pre-embedded hole assembly can be used in conjunction with the air supply pipe assembly to cool and kill pests on the grain, without being limited by the internal space of the grain silo.

[0013] 2. In this utility model, the air supply pipe assembly is assembled with the connecting pipe by bolts, which facilitates disassembly and placement. At the same time, air supply pipe assemblies of different lengths and sizes can be replaced and installed as needed, improving the overall flexibility.

[0014] 3. In this utility model, the adjustment component can drive multiple sets of air supply pipe components to move and adjust. Multiple sets of air supply pipes can be inserted into the grain at multiple positions. Cold air is discharged through multiple air supply holes in the air supply pipe, so that the cold air can be more evenly distributed inside the grain, improving the cooling effect and speed. This all-round cooling method can more effectively kill pests and ensure the quality and safety of the grain. Attached Figure Description

[0015] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a low-temperature insecticidal device for grain storage.

[0016] Figure 2 This utility model proposes a low-temperature insecticidal device for grain storage. Figure 1 Schematic diagram of the structure at point A in the middle;

[0017] Figure 3This utility model provides a side view of a low-temperature insecticidal device for grain storage.

[0018] Figure 4 This utility model provides a partial exploded structural diagram of the auxiliary device of a low-temperature insecticidal device for grain storage.

[0019] Figure 5 This utility model provides a schematic diagram of the external structure of a grain storage low-temperature insecticidal device.

[0020] Figure 6 This invention provides an exploded structural diagram of the auxiliary device of a low-temperature insecticidal device for grain storage.

[0021] Legend:

[0022] 1. Grain silo body; 2. Trolley frame; 3. Auxiliary device; 31. Reserved sleeve; 32. Sealing gasket; 33. Sealing cover; 34. Air cooler body; 35. Centrifugal fan; 36. Air supply pipe; 37. Fixing frame; 38. Air supply pipe assembly; 381. Air supply pipe body; 382. Filter sleeve; 39. Adjustment component; 391. Drive motor; 392. Drive gear; 393. Rack; 310. Sliding seat; 311. Connecting pipe; 312. Telescopic hose; 313. Three-way valve; 314. Auxiliary pipe. Detailed Implementation

[0023] Please see Figures 1-6 This utility model provides a technical solution: a low-temperature insecticidal device for grain storage, including a grain storage body 1 and a trolley frame 2, with an auxiliary device 3 provided on the surface of the trolley frame 2.

[0024] Specifically, the auxiliary device 3 includes a cold air unit 34 and a centrifugal fan 35 mounted on the surface of the trolley frame 2. A three-way valve 313 is installed between the output end of the cold air unit 34 and the input end of the centrifugal fan 35. One end of the three-way valve 313 is fixedly connected to an auxiliary pipe 314. The output end of the centrifugal fan 35 is fixedly connected to an air supply pipe 36. A fixed frame 37 is provided on the surface of the trolley frame 2. Four sets of sliding seats 310 are slidably connected to the inner wall of the fixed frame 37. A connecting pipe 311 is fixedly connected to the inner wall of the sliding seat 310. An air supply pipe assembly 38 is installed at one end of the connecting pipe 311 by bolts. A telescopic hose 312 is fixedly connected to the other end of the connecting pipe 311. The other end of the telescopic hose 312 is connected to the air supply pipe 36. An adjustment assembly 39 is provided between the sliding seat 310 and the fixed frame 37. Multiple reserved hole assemblies are provided on the surface of the grain silo body 1.

[0025] In this implementation plan: When there is a small amount of grain in the grain silo 1, the equipment can be pushed into the grain silo 1 by the trolley frame 2. Then, the air supply pipe assembly 38 is inserted into the grain. Subsequently, the centrifugal fan 35 can work with the cold air unit 34 to deliver cold air to the air supply pipe 36. The air supply pipe 36 delivers gas to the air supply pipe assembly 38 through the telescopic hose 312 and the connecting pipe 311. The air supply pipe assembly 38 can deliver cold air to the grain. Alternatively, the three-way valve 313 can be turned to connect the auxiliary pipe 314 to the centrifugal fan 35. The auxiliary pipe 314 can be connected to the equipment that supplies carbon dioxide or liquid nitrogen to deliver low-temperature carbon dioxide or liquid nitrogen to the grain. Both methods are used to cool the grain, thereby achieving the effect of pest control. Alternatively, the air supply pipe assembly 38 can be inserted through the pre-drilled hole assembly in the grain silo 1 to cool the grain and kill pests.

[0026] Specifically, the air supply pipe assembly 38 includes an air supply pipe body 381, which is fixed to the connecting pipe 311 by bolts. The surface of the air supply pipe body 381 is provided with multiple air supply holes, and a filter sleeve 382 is fixedly connected to the outer surface of the air supply pipe body 381.

[0027] In this implementation plan: after the gas supply pipe 381 is inserted into the grain, the filter sleeve 382 can intercept and filter the gas, and then the gas supply pipe 381 discharges the gas through the gas supply hole to cool it down.

[0028] Specifically, the head of the air supply pipe 381 is tapered, which allows for better insertion into the grain.

[0029] Specifically, the adjustment component 39 includes a drive motor 391, which is fixedly connected to the surface of the sliding seat 310. A drive gear 392 is fixedly connected to the output end of the drive motor 391. A rack 393 is fixedly connected to the surface of the fixed frame 37. The rack 393 is connected through to multiple sliding seats 310. The drive gear 392 is meshed with the rack 393.

[0030] In this implementation scheme: When in use, the drive motor 391 is turned on, and the drive motor 391 can drive the drive gear 392 to rotate. The drive gear 392, in conjunction with the rack 393, can drive the sliding seat 310 to move up and down on the fixed frame 37 for easy adjustment.

[0031] Specifically, the reserved hole assembly includes a reserved sleeve 31, which is fixedly connected to the inner wall of the grain silo body 1. A sealing cover 33 is fixedly connected to the outer surface of the reserved sleeve 31 by bolts. When it is necessary to cool down and kill insects from the outside of the grain silo body 1, the sealing cover 33 can be opened and the air supply pipe assembly 38 can be inserted into the grain silo body 1 through the reserved sleeve 31 for cooling and killing insects.

[0032] Specifically, the inner wall of the reserved sleeve 31 is fixedly connected with a sealing gasket 32.

[0033] In this implementation scheme: when the air supply pipe assembly 38 is inserted into the reserved sleeve 31, the sealing gasket 32 ​​will fit against the air supply pipe assembly 38, thereby achieving a sealing effect.

[0034] Working principle: When a small amount of grain is piled in the grain silo 1, the equipment can be pushed into the grain silo 1 using the trolley frame 2. Then, the drive motor 391 is turned on, which drives the drive gear 392 to rotate. The drive gear 392, in conjunction with the rack 393, moves the sliding seat 310 within the fixed frame 37, adjusting the height of the air supply pipe assembly 38. Then, the air supply pipe 381 and filter screen can be inserted into the grain through the conical head in the air supply pipe 381. Multiple sets of air supply pipes 381 allow for insertion at multiple positions. The centrifugal fan 35 can work with the cold air unit 34 to deliver cold air to the gas supply pipe 36. The gas supply pipe 36 delivers the gas to the gas supply pipe 381 through the telescopic hose 312 and the connecting pipe 311. The gas supply pipe 381 discharges through multiple gas supply holes. The three-way valve 313 can also be turned to connect the auxiliary pipe 314 to the centrifugal fan 35. The auxiliary pipe 314 can be connected to the equipment that supplies carbon dioxide or liquid nitrogen, and carbon dioxide or liquid nitrogen can be delivered to the gas supply pipe 381. The two methods are used to cool down the inner wall of the grain, thereby achieving the effect of killing insects.

[0035] When it is necessary to cool and kill insects on the outside of the grain storage body 1, the sealing cap 33 on the surface of the reserved sleeve 31 can be removed, and then the air supply pipe 381 can be inserted into the reserved sleeve 31. The air supply pipe 381 and the sealing gasket 32 ​​in the reserved sleeve 31 are pressed together to seal. Then the air supply pipe 381 is inserted into the grain through the conical head. Then the centrifugal fan 35 can work with the cold air fan 34 to deliver cold air to the air supply pipe 36. The air supply pipe 36 delivers gas to the air supply pipe 381 through the telescopic hose 312 and the connecting pipe 311. The air supply pipe 381 discharges through multiple air supply holes. The three-way valve 313 can also be turned to connect the auxiliary pipe 314 to the centrifugal fan 35. The auxiliary pipe 314 can be connected to the equipment that supplies carbon dioxide or liquid nitrogen, and carbon dioxide or liquid nitrogen can be delivered to the air supply pipe 381. Cooling is carried out in two ways, thereby cooling the inner wall of the grain and achieving the effect of killing insects.

Claims

1. A low-temperature insecticidal device for grain storage, comprising a grain storage body (1) and a trolley frame (2), characterized in that: The surface of the trolley frame (2) is provided with an auxiliary device (3), which includes a cold air unit (34) and a centrifugal fan (35) mounted on the surface of the trolley frame (2). A three-way valve (313) is installed between the output end of the cold air unit (34) and the input end of the centrifugal fan (35). One end of the three-way valve (313) is fixedly connected to an auxiliary pipe (314). The output end of the centrifugal fan (35) is fixedly connected to an air supply pipe (36). The surface of the trolley frame (2) is provided with a fixing frame (37). The inner wall of the grain storage unit (1) is slidably connected with four sets of sliding seats (310). The inner wall of the sliding seat (310) is fixedly connected with a connecting pipe (311). One end of the connecting pipe (311) is fitted with an air supply pipe assembly (38) by bolts. The other end of the connecting pipe (311) is fixedly connected with a telescopic hose (312). The other end of the telescopic hose (312) is connected to the air supply pipe (36). An adjustment assembly (39) is provided between the sliding seat (310) and the fixed frame (37). The surface of the grain storage unit (1) is provided with multiple reserved hole assemblies.

2. The grain storage low-temperature insecticidal device according to claim 1, characterized in that: The air supply pipe assembly (38) includes an air supply pipe body (381), which is fixed to the connecting pipe (311) by bolts. The surface of the air supply pipe body (381) is provided with a plurality of air supply holes, and a filter sleeve (382) is fixedly connected to the outer surface of the air supply pipe body (381).

3. The grain storage low-temperature insecticidal device according to claim 2, characterized in that: The head of the air supply pipe (381) is tapered.

4. The low-temperature insecticidal device for grain storage according to claim 1, characterized in that: The adjustment assembly (39) includes a drive motor (391), which is fixedly connected to the surface of the sliding seat (310). A drive gear (392) is fixedly connected to the output end of the drive motor (391). A rack (393) is fixedly connected to the surface of the fixing frame (37). The rack (393) is connected through to multiple sliding seats (310). The drive gear (392) meshes with the rack (393).

5. The low-temperature insecticidal device for grain storage according to claim 1, characterized in that: The reserved hole assembly includes a reserved sleeve (31), which is fixedly connected to the inner wall of the grain silo body (1), and a sealing cap (33) is fixedly connected to the outer surface of the reserved sleeve (31) by bolts.

6. A low-temperature insecticidal device for grain storage according to claim 5, characterized in that: A sealing gasket (32) is fixedly connected to the inner wall of the reserved sleeve (31).

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