Ventilation drying equipment for grain barn

Abstract

The utility model discloses a grain barn ventilation drying device which comprises a tank body, a connecting pipeline and a ventilation plate, a feeding port, a discharging port and an exhaust port are formed in the tank body, a drying machine is arranged on the outer side of the tank body, one end of the connecting pipeline is communicated with the drying machine, the other end of the connecting pipeline penetrates into the tank body, and the ventilation plate is of a hollow structure. The ventilation plates are spirally arranged around the outer side of the connecting pipeline, the inner sides of the ventilation plates communicate with the outer side of the connecting pipeline, the outer sides of the ventilation plates are fixedly connected with the inner wall of the tank body, the top and the bottom of each ventilation plate are each provided with a plurality of ventilation holes arranged at intervals, and the top and the bottom of each ventilation plate are each covered with a blocking net; the ventilation plate is divided in the tank body to form a spiral storage area, the blocking net is located in the storage area, the two ends of the storage area are communicated with the feeding port and the discharging port respectively, and the exhaust port is communicated with the storage area. The utility model provides ventilating and drying equipment for a grain bin. Dry air can be fully injected into each area in a tank body.

Description

Technical Field

[0001] The utility model relates to the field of grain storage, in particular to a ventilation and drying device for a grain bin. Background Art

[0002] Most of the existing grain storage methods are to place the grain in a tank made of metal. Grain has a longer storage time in a dry environment, so it is necessary to ensure that the moisture content in the tank is low when storing the grain. However, after the grain in the tank is piled up for a long time and the inside of the tank is not ventilated, the grain will become damp, resulting in mildew of the grain. Therefore, it is necessary to ventilate the grain in the tank in time.

[0003] During ventilation, dry air is injected into the tank through an external device, so that the dry air contacts the grain, and the air takes the moisture in the grain out of the tank to ensure its dryness.

[0004] However, after the air in the above solution enters the tank, the air can only contact the grain piled on the surface layer, and the grain piled in the middle part cannot breathe, which easily causes local humidity in the tank, resulting in mildew of the grain piled in the middle part and polluting the surrounding grain. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a ventilation and drying device for a grain bin, which can fully inject dry air into each area in the tank.

[0006] The technical solution adopted by a ventilation and drying device for a grain bin disclosed by the utility model is as follows: [[ID=2^{3}]]

[0007] It includes a tank body, a connecting pipeline and a ventilation plate. The tank body is provided with a feed inlet, a discharge outlet and an exhaust outlet. A dryer is arranged on the outer side of the tank body. One end of the connecting pipeline is communicated with the dryer, and the other end of the connecting pipeline penetrates into the tank body. The ventilation plate is of a hollow structure, and the ventilation plate is spirally arranged around the outer side of the connecting pipeline. The inner side of the ventilation plate is communicated with the outer side of the connecting pipeline, and the outer side of the ventilation plate is fixedly connected with the inner wall of the tank body. A plurality of ventilating holes arranged at intervals are formed at the top and bottom of the ventilation plate. The top and bottom of the ventilation plate are both covered with a barrier net. The ventilation plate divides the inside of the tank into a spiral storage area. The barrier net is located in the storage area. The two ends of the storage area are respectively communicated with the feed inlet and the discharge outlet, and the exhaust outlet is communicated with the storage area.

[0008] As a preferred solution, a support platform is fixedly connected to the outer side of the tank body, the dryer is fixedly connected to the support platform, the feed inlet is located at the top of the tank body, a sealing cover is provided on the feed inlet, the discharge outlet is located at the bottom of the tank body, a valve is provided in the discharge outlet, and the other end of the connecting pipe penetrates into the tank body from the bottom, and the connecting pipe is located on the central axis of the tank body.

[0009] As a preferred solution, a first fan is provided in the exhaust port, and a first filter screen is provided on the first fan.

[0010] As a preferred solution, the air-permeable plate is inclined at a certain angle, and one side of the air-permeable plate is higher than the other side of the air-permeable plate.

[0011] As a preferred solution, an air duct and a receiving cavity are provided in the dryer. A second fan is provided in the air duct, and the second fan penetrates out of the air duct. A condenser and an evaporator are provided in the air duct. The condenser is close to the second fan. A first water collection box is provided in the evaporator. A first drain pipe is provided on the evaporator. One end of the first drain pipe is connected to the first water collection box, and the other end of the first drain pipe penetrates out of the dryer. An air outlet is opened in the air duct. The condenser and the evaporator are both located between the second fan and the air outlet. A refrigeration mechanism is provided in the receiving cavity, and the condenser and the evaporator are both connected to the refrigeration mechanism.

[0012] As a preferred solution, one end of the connecting pipe is communicated with the air outlet of the dryer, and a third fan is provided in the air outlet.

[0013] As a preferred solution, the condenser includes a first frame and a first copper pipe. The outer side of the first frame is fixedly connected to the inner wall of the air duct. A plurality of fins arranged at intervals are provided in the first frame. The middle part of the first copper pipe snakes and reciprocally penetrates through the plurality of fins, and both ends of the first copper pipe penetrate through the first frame.

[0014] As a preferred solution, the evaporator includes a second frame, a second copper pipe and a plurality of second water collection boxes. The outer side of the second frame is fixedly connected to the inner wall of the air duct. The first water collection box is located at the bottom of the inner wall of the second frame. One end of the first drain pipe penetrates into the second frame and is communicated with the first water collection box. The middle part of the second copper pipe is located in the second frame, and both ends of the second copper pipe penetrate through the second frame. The middle part of the second copper pipe snakes and reciprocally arranges, and the middle part of the second copper pipe forms a plurality of U shapes. The plurality of second water collection boxes are respectively fixedly connected to both sides of the inner wall of the second frame. The second water collection box is located inside the U shape of the second copper pipe. Second drain pipes are fixedly connected to both sides of the inner wall of the second frame. The second drain pipes penetrate through the adjacent second water collection boxes, and a plurality of drain ports arranged at intervals are opened on the second drain pipes. The drain ports are located in the second water collection boxes.

[0015] As a preferred solution, the refrigeration mechanism includes a compressor and an expansion valve. One end of the second copper tube is communicated with the air inlet of the compressor, the air outlet of the compressor is communicated with one end of the first copper tube, the other end of the first copper tube is communicated with the air inlet of the expansion valve, and the air outlet of the expansion valve is communicated with the other end of the second copper tube.

[0016] The beneficial effects of a grain bin ventilation and drying device disclosed by the present utility model are as follows:

[0017] Inject grains from the feed inlet into the placement area. Since the placement area is spiral, the air permeable plates can be evenly inserted into each layer of grains; the dryer inhales air from the outside, and the dryer removes most of the moisture in the air, so that the air is converted into dry air. The dry air enters and flows into the air permeable plates through the connection pipeline. The dry air passes through the air permeation holes and is injected into the grains piled on the air permeable plates, so that the dry air can cover each area inside the tank, avoiding the problem that the grains piled in the middle part cannot be ventilated. The barrier net can prevent the grains from falling into the air permeable plates through the air permeation holes; the dry air passes through the grains and takes away the moisture therein, and the air carrying the moisture is discharged outside the tank from the exhaust port, realizing ventilation for the grains in each area of the tank. Description of the Drawings

[0018] Figure 1 is a schematic structural view of a grain bin ventilation and drying device of the present utility model.

[0019] Figure 2 is a sectional view of the tank body of a grain bin ventilation and drying device of the present utility model.

[0020] Figure 3 is a sectional view of the tank body of a grain bin ventilation and drying device of the present utility model.

[0021] Figure 4 is a sectional view of the connection pipeline and the air permeable plate of a grain bin ventilation and drying device of the present utility model (the dotted line is the air flow path).

[0022] Figure 5 is a schematic structural view of the dryer of a grain bin ventilation and drying device of the present utility model.

[0023] Figure 6 is a schematic structural view of the air duct and the accommodation cavity of a grain bin ventilation and drying device of the present utility model.

[0024] Figure 7 is a schematic structural view of the condenser of a grain bin ventilation and drying device of the present utility model.

[0025] Figure 8 is a schematic structural view of the evaporator of a grain bin ventilation and drying device of the present utility model. Detailed Embodiments

[0026] The present invention will be further described and explained below in conjunction with specific embodiments and accompanying drawings:

[0027] Please refer to Figure 1 and Figure 2 .

[0028] The utility model discloses a grain silo ventilation and drying device, which comprises a tank body 1, a connecting pipe 2, and a breathable plate 3.

[0029] The outer side of the tank body 1 is fixedly connected to the support platform 11, which lifts the tank body 1 and keeps the tank body 1 away from the ground;

[0030] Furthermore, a feed port 12 is provided on the tank body 1, and the feed port 12 is located at the top of the tank body 1. A removable sealing cover is provided on the feed port 12. When adding grains to the tank body 1, the sealing cover is removed and the grains are injected into the tank body 1 through the feed port 12. Since the feed port 12 is located at the top of the tank body 1, the grains will flow to the bottom of the tank body 1 due to gravity. After the grains are added, the sealing cover is placed on the feed port 12 to prevent foreign matter or moisture from entering the tank body 1 through the feed port 12.

[0031] Furthermore, a discharge port 13 is provided on the tank body 1, and the discharge port 13 is located at the bottom of the tank body 1, and a valve is provided in the discharge port 13; when the grain in the tank body 1 needs to be collected, the valve is opened and the grain will be discharged from the discharge port 13 due to gravity. After the grain is collected, the valve is closed to block the discharge port 13.

[0032] Furthermore, an exhaust port 14 is provided on the tank body 1, and the exhaust port 14 is located at the top of the tank body 1. A first fan 141 is provided in the exhaust port 14; a first filter 142 is provided on the upper cover of the first fan 141, and the first filter 142 is close to the opening of the exhaust port 14. The first filter 142 covers the exhaust port 14, and the first filter 142 can block foreign matter from entering the tank body 1 from the exhaust port; the first fan 141 can extract humid air in the tank body 1 and discharge it to the outside of the tank body 1 from the exhaust port. The first fan 141 can accelerate the discharge of humid air in the tank body 1 and improve the ventilation efficiency of the tank body 1.

[0033] A dryer is provided on the outside of the tank body 1, and the dryer is fixedly connected to the support platform 11; one end of the connecting pipe 2 is connected to the dryer, and the other end of the connecting pipe 2 penetrates into the tank body 1, and the other end of the connecting pipe 2 penetrates from the bottom of the tank body 1, and the other end of the connecting pipe 2 is located on the central axis of the tank body 1.

[0034] Please refer to Figures 2 - 4 .

[0035] In this embodiment, the air permeable plate 3 is preferably a hollow structure, and the air permeable plate 3 is arranged in a spiral upward manner around the outer side of the connecting pipe 2. The design of the spiral upward arrangement of the air permeable plate 3 can make the air permeable plate 3 evenly interspersed in each layer of grain. The inner side of the air permeable plate 3 is connected to the outer side of the connecting pipe 2, so that the air in the connecting pipe 2 can enter the air permeable plate 3 through the connection between the connecting pipe 2 and the air permeable plate 3; a plurality of spaced reinforcing ribs extend from the connection between the connecting pipe 2 and the air permeable plate 3, and the top and bottom of the reinforcing ribs respectively touch the top and bottom of the inner wall of the air permeable plate 3, and the reinforcing ribs can improve the bearing capacity of the air permeable plate 3 to support the grain;

[0036] Furthermore, the outer side of the air permeable plate 3 is fixedly connected to the inner wall of the tank body 1. In this embodiment, the air permeable plate 3 is preferably tilted at a certain angle, so that the connection between one side of the air permeable plate 3 and the outer side of the connecting pipe 2 is higher than the connection between the other side of the air permeable plate 3 and the inner wall of the tank body 1. When the air permeable plate 3 supports the grain, most of the weight applied by the grain to the air permeable plate 3 is transferred to the tank body 1, reducing the downward pressure of the grain on the connecting pipe 2 and the air permeable plate 3.

[0037] Furthermore, the air permeable plate 3 is divided into a spiral storage area 15 in the tank body 1, and the two ends of the storage area 15 are respectively connected to the feed port 12 and the discharge port 13. After the grains are injected into the storage area 15 from the feed port 12, the grains flow from one end of the storage area 15 to the other end of the storage area 15 due to gravity; the exhaust port 14 is connected to the storage area 15.

[0038] Furthermore, the top and bottom of the air permeable plate 3 are provided with a plurality of air holes 31 arranged at intervals, and the air holes 31 are connected to the interior of the air permeable plate 3, and the air in the air permeable plate 3 enters the storage area 15 through the air holes 31; the top and bottom of the air permeable plate 3 are covered with a barrier net, and in this embodiment, the barrier net is preferably made of steel wire, and the barrier net is located in the storage area 15, and the barrier net covers the air holes 31, and the barrier net prevents grains from passing through the air holes 31 and falling into the air permeable plate 3.

[0039] Please refer to Figures 1 - 4 .

[0040] The dryer 4 injects dry air into the air permeable plate 3 through the connecting pipe 2. Since the air permeable plate 3 is inserted into each layer of grain, the dry air can be evenly injected into the grain, allowing the dry air to cover every area in the tank 1.

[0041] Please refer to Figures 5 - 8 .

[0042] The dryer 4 is provided with an air duct 41 and a receiving cavity 42. A second fan 411 is arranged in the air duct 41. The second fan 411 passes through the air duct 41. On the side of the second fan 411 close to the dryer 4, a second filter screen 412 is covered on the second fan 411. The second filter screen 412 filters the air inhaled into the air duct 41 by the second fan 411, and the second filter screen 412 isolates foreign objects and dust from the outside.

[0043] Furthermore, an air outlet is formed in the air duct 41. The air outlet is located at the bottom of the inner wall of the air duct 41 and on the other side of the air duct 41 close to the dryer 4. One end of the connecting pipe 2 is communicated with the air outlet of the dryer. A condenser 43 and an evaporator 44 are arranged in the air duct 41. The condenser 43 is close to the second fan 411. Both the condenser 43 and the evaporator 44 are located between the second fan 411 and the air outlet, and the evaporator 44 is close to the air outlet. The second fan 411 extracts the outside air. After the air passes through the second filter screen 412 and the second fan 411 and enters the air duct 41, the air sequentially passes through the condenser 43, the evaporator 44 and the air outlet.

[0044] The air in the air duct 41 can enter the connecting pipe 2 through the air outlet. A third fan 413 is arranged in the air outlet. Under the extraction of the third fan 413, the air in the air duct 41 can quickly pass through the third fan 413 and enter the connecting pipe 2, improving the air flow speed in the air duct 41.

[0045] A refrigeration mechanism 45 is arranged in the receiving cavity 42. Both the condenser 43 and the evaporator 44 are connected to the refrigeration mechanism 45.

[0046] The condenser 43 includes a first frame 431 and a first copper tube 433. In this embodiment, the first frame 431 is preferably a hollow rectangular frame structure. The outside of the first frame 431 is fixedly connected to the inner wall of the air duct 41. A plurality of fins 432 arranged at intervals are arranged in the first frame 431. The middle part of the first copper tube 433 snakes and reciprocally penetrates through the plurality of fins 432 to increase the contact area between the first copper tube 433 and the fins 432. Both ends of the first copper tube 433 penetrate through the first frame 431; both ends of the first copper tube 433 penetrate through the first frame 431, and both ends of the first copper tube 433 penetrate into the receiving cavity 42.

[0047] The evaporator 44 includes a second frame 441, a second copper tube 442, a first water collecting box 443 and a plurality of second water collecting boxes 444. In this embodiment, the second frame 441 is preferably a hollow rectangular frame structure. The outside of the second frame 441 is fixedly connected to the inner wall of the air duct 41. The first water collecting box 443 is located at the bottom of the inner wall of the second frame 441. A first drain pipe 445 is arranged on the evaporator 44. One end of the first drain pipe 445 penetrates into the second frame 441 and is communicated with the first water collecting box 443, and the other end of the first drain pipe 445 penetrates out of the dryer 4.

[0048] Furthermore, the middle part of the second copper tube 442 is located within the second frame 441. The middle part of the second copper tube 442 is arranged in a serpentine reciprocating pattern, forming multiple U - shapes. Both ends of the second copper tube 442 penetrate through the second frame 441 and both ends of the second copper tube 442 penetrate into the receiving cavity 42.

[0049] Furthermore, multiple second water - collecting boxes 444 are respectively fixedly connected to both sides of the inner wall of the second frame 441. The second water - collecting boxes 444 are located within the U - shapes, such that the condensed water on the second copper tube 442 can drip into the first water - collecting box 443 and the second water - collecting boxes 444. Second drain pipes 446 are fixedly connected to both sides of the inner wall of the second frame 441. The second drain pipes 446 penetrate through the adjacent second water - collecting boxes 444. Multiple drain ports are arranged at intervals on the second drain pipes 446, and the drain ports are located within the second water - collecting boxes 444. The condensed water within the second water - collecting boxes 444 can enter the second drain pipes 446 through the drain ports. The second drain pipes 446 guide the condensed water into the first water - collecting box 443, and the condensed water within the first water - collecting box 443 is discharged from the dryer 4 through the first drain pipe 445.

[0050] The refrigeration mechanism 45 includes a compressor 451 and an expansion valve 452. One end of the second copper tube 442 is communicated with the intake port of the compressor 451. The outlet port of the compressor 451 is communicated with one end of the first copper tube 433. The other end of the first copper tube 433 is communicated with the intake port of the expansion valve 452. The outlet port of the expansion valve 452 is communicated with the other end of the second copper tube 442.

[0051] The refrigerant after heat exchange in the evaporator 44 is injected into the outlet port of the compressor 451 through one end of the second copper tube 442. After the compressor 451 compresses the refrigerant, the high - temperature refrigerant enters the condenser 43 through one end of the first copper tube 433. The fins 432 on the condenser 43 are used to cool down the refrigerant. The refrigerant cooled down within the condenser 43 is injected into the expansion valve 452 through the other end of the first copper tube 433. The refrigerant within the expansion valve 452 is injected into the evaporator 44 through the other end of the second copper tube 442, enabling the evaporator 44 to perform heat exchange on the passing air and convert the water vapor in the air into condensed water.

[0052] Please refer to Figures 1 - 8 。

[0053] During operation:

[0054] The second fan 411 sucks the outside air into the air duct 41. The air sequentially passes through the condenser 43 and the evaporator 44. The air cools down the condenser 43. When the air passes through the evaporator 44, the low temperature of the second copper pipe 442 converts the water vapor in the air into condensed water. The condensed water drops on the first water collecting box 443 and the second water collecting box 444 and then is discharged outside the dryer through the first drain pipe 445, thereby reducing the water vapor content in the air and converting the air into dry cold air. The third fan 413 sucks the dry cold air in the air duct 41 into the connection pipe 2. The dry cold air sequentially passes through the connection pipe 2, the ventilation plate 3 and the ventilation holes 31 and is injected into the grains. The dry cold air takes away the moisture in the grains. The first fan 141 discharges the cold air with moisture in the tank body 1 to the outside of the tank body 1, realizing ventilation and dehumidification for the grains in the tank body 1. When the tank body 1 is arranged outdoors and the outdoor temperature is high, the dry cold air can also cool down the inside of the tank body 1 to prevent the grains from being damaged by the high temperature in the tank body 1.

[0055] The utility model provides a ventilation and drying device for a grain bin. Grains are injected into the placing area from the feeding port. Since the placing area is spiral, the ventilation plate can be evenly inserted into each layer of grains. The dryer sucks air from the outside world, and the dryer removes most of the moisture in the air, thereby converting the air into dry air. The dry air enters and flows into the ventilation plate through the connection pipe. The dry air passes through the ventilation holes and is injected into the grains piled on the ventilation plate, enabling the dry air to cover each area in the tank body and avoiding the problem that the grains piled in the middle part cannot be ventilated. The blocking net can prevent the grains from falling into the ventilation plate through the ventilation holes. The dry air passes through the grains and takes away the moisture in them. The air carrying the moisture is discharged outside the tank body from the exhaust port, realizing ventilation for the grains in each area of the tank body.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A grain bin ventilation and drying device, characterized in that It includes a tank body, a connecting pipe and a ventilation plate. An inlet, an outlet and an exhaust port are provided on the tank body, and a dryer is arranged outside the tank body; One end of the connecting pipe is communicated with the dryer, and the other end of the connecting pipe penetrates into the tank body. The ventilation plate is of a hollow structure. The ventilation plate is spirally arranged around the outer side of the connecting pipe. The inner side of the ventilation plate is communicated with the outer side of the connecting pipe. The outer side of the ventilation plate is fixedly connected with the inner wall of the tank body. A plurality of ventilating holes are arranged at intervals at the top and bottom of the ventilation plate. A barrier net is covered at the top and bottom of the ventilation plate. The ventilation plate divides a spiral storage area in the tank body. The barrier net is located in the storage area. The two ends of the storage area are respectively communicated with the inlet and the outlet. The exhaust port is communicated with the storage area.

2. The grain bin ventilation and drying equipment according to claim 1, characterized in that, A support platform is fixedly connected to the outer side of the tank body, and the dryer is fixedly connected to the support platform. The inlet is located at the top of the tank body, and a sealing cover is provided on the inlet. The outlet is located at the bottom of the tank body, and a valve is arranged in the outlet. The other end of the connecting pipe penetrates into the tank body from the bottom of the tank body, and the connecting pipe is located on the central axis of the tank body.

3. The a kind of ventilation and drying equipment for grain bin according to claim 2, characterized in that, A first fan is arranged in the exhaust port, and a first filter screen is covered on the first fan.

4. The a kind of ventilation and drying equipment for grain storage according to claim 3, characterized in that, The ventilation plate is inclined at a certain angle, and one side of the ventilation plate is higher than the other side.

5. A grain bin ventilation and drying device according to claim 4, characterized in that, A wind channel and a receiving cavity are arranged in the dryer. A second fan is arranged in the wind channel. The second fan penetrates out of the wind channel. A condenser and an evaporator are arranged in the wind channel. The condenser is close to the second fan. A first water collecting box is arranged in the evaporator. A first drain pipe is arranged on the evaporator. One end of the first drain pipe is connected to the first water collecting box, and the other end of the first drain pipe penetrates out of the dryer. An air outlet is arranged in the wind channel. The condenser and the evaporator are both located between the second fan and the air outlet. A refrigeration mechanism is arranged in the receiving cavity. The condenser and the evaporator are both connected to the refrigeration mechanism.

6. The grain bin ventilation and drying equipment according to claim 5, characterized in that, One end of the connecting pipe is communicated with the air outlet of the dryer, and a third fan is arranged in the air outlet.

7. The a kind of ventilation and drying equipment for grain bin according to claim 6, characterized in that, The condenser includes a first frame and a first copper pipe. The outer side of the first frame is fixedly connected with the inner wall of the wind channel. A plurality of fins arranged at intervals are arranged in the first frame. The middle part of the first copper pipe snakes and reciprocally penetrates through the plurality of fins. Both ends of the first copper pipe penetrate through the first frame.

8. A grain bin ventilation and drying device according to claim 7, characterized in that, The evaporator includes a second frame, second copper tubes, and multiple second water collection boxes. The outer side of the second frame is fixedly connected to the inner wall of the air duct. The first water collection box is located at the bottom of the inner wall of the second frame. One end of the first drain pipe penetrates into the second frame and communicates with the first water collection box. The middle part of the second copper tube is located inside the second frame. Both ends of the second copper tube penetrate out of the second frame. The middle part of the second copper tube is arranged in a serpentine reciprocating pattern, forming multiple U-shapes. Multiple second water collection boxes are respectively fixedly connected to both sides of the inner wall of the second frame. The second water collection boxes are located inside the U-shapes of the second copper tube. Second drain pipes are fixedly connected to both sides of the inner wall of the second frame. The second drain pipes penetrate through the adjacent second water collection boxes. Multiple drain ports are arranged at intervals on the second drain pipes. The drain ports are located inside the second water collection boxes.

9. The grain bin ventilation and drying equipment according to claim 8, characterized in that, The refrigeration mechanism includes a compressor and an expansion valve. One end of the second copper tube is communicated with the intake port of the compressor. The outlet port of the compressor is communicated with one end of the first copper tube. The other end of the first copper tube is communicated with the intake port of the expansion valve. The outlet port of the expansion valve is communicated with the other end of the second copper tube.

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