Fan air guide device for port grain storage bin body

Abstract

The utility model belongs to the technical field of agriculture and food engineering, and discloses a fan air guide device for a port grain storage bin body, which comprises a bin cylinder wall, a top sealing cover arranged on the top of the bin cylinder wall, a spiral main air pipe fixedly arranged on the outer side of the bin cylinder wall, and an outer coil pipe support arranged on the outer side of the bin cylinder wall. The spiral main air pipe is wound on the outer side of the silo wall through the outer coil pipe support, an air outlet is formed in the top end of the spiral main air pipe, an air inlet is formed in the bottom end of the spiral main air pipe and connected with the draught fan in a sealed mode, two sets of ventilation net plates are installed in the silo wall, and turbine-shaped ventilation pipelines are arranged in the ventilation net plates. Air is conveyed into the ventilation pipeline in the ventilation net plate from the spiral main air pipe through the draught fan, the air is discharged out of the ventilation net holes in the ventilation pipeline, heat dissipation is conducted on grains, the structure design is compact and reasonable, a proper amount of air enters through the ventilation net plate for heat dissipation and ventilation, the situation that the grains are blown to be scattered and splashed due to too large wind force is avoided, and the service life of the grains is prolonged. And wind power does not need to be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical fields of agriculture and food engineering, and particularly relates to a fan air guiding device for a grain storage bin body at a port. Background Technique

[0002] Grain storage is the storage management process from after the grain is harvested to before consumption. Humidity and temperature are the key factors for the safety of grain storage. The traditional granary ventilation system adopts above-ground cage ventilation or floor trench ventilation. The problem of vertical stratification of grain moisture is serious, and large cold cores and obvious hot skins are easily formed in the grain pile in the granary. The grain temperature at the cold core part of the grain pile can be maintained below 15°C for a long time and can be safely stored for a long time. However, the grain temperature on the surface of the grain pile will reach 25°C - 30°C, the grain quality changes rapidly, and it is easily damaged by insects and mildew. Along with the transfer of heat and humidity, local heating and caking occur, and even the grain surface becomes hard or the grain mildews. Due to the high humidity of the air in the port environment, heat dissipation and ventilation are particularly important for the grain storage bin body at the port.

[0003] The traditional granary ventilation system generally adopts upper dragon ventilation and floor trench ventilation, resulting in the problem of vertical stratification of grain moisture. Moreover, the design of the traditional ventilation air duct is unreasonable, the ventilation area is small, and the overall ventilation and heat dissipation effect of the granary is poor. Some technicians use ventilation pipes for ventilation and heat dissipation, use a fan to provide wind power, and guide the wind power to the bottom of the granary. However, if the wind power is too large, the grain will be blown everywhere and splashed, and if the wind power is too small, the cooling and ventilation effect is poor, and the grain still accumulates heat. Moreover, the moisture and density of different grains are different, and each time different grains are stored, cumbersome adjustment of the wind power size is required, which is inconvenient to use. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a fan air guiding device for a grain storage bin body at a port, so as to solve the problems of blowing the grain away due to too large wind power and difficult adjustment of the wind power size mentioned in the above background technique.

[0006] (2) Technical Solution

[0007] To achieve the above object, the utility model provides the following technical solution: A fan air guiding device for a grain storage bin body at a port, including a bin barrel wall, a capping cover is installed on the top of the bin barrel wall, a spiral main air duct is fixedly installed on the outer side of the bin barrel wall, an outer coil pipe support is arranged on the outer side of the bin barrel wall, the spiral main air duct is wound around the outer side of the bin barrel wall through the outer coil pipe support, an air outlet is installed at the top end of the spiral main air duct, an air inlet is installed at the bottom end of the spiral main air duct, the air inlet is hermetically connected with a fan, and two groups of ventilation net plates are installed inside the bin barrel wall.

[0008] Preferably, the outer coil pipe support comprises five groups of vertical support rods and five groups of fixed supports. The five groups of fixed supports are all fixed around the corresponding silo wall on the ground. Five groups of vertical support rods are welded on the five groups of fixed supports, and the spiral main air duct is welded and connected to the five groups of vertical support rods.

[0009] Preferably, the ventilation mesh plate comprises an upper mesh plate, a lower structural plate and a ventilation duct. The upper mesh plate is connected to the lower structural plate. A ventilation duct is arranged between the upper mesh plate and the lower structural plate. Multiple ventilation mesh holes are formed in the upper mesh plate, and the ventilation mesh holes penetrate through the upper mesh plate and the ventilation duct. Multiple support blocks are welded on the lower structural plate, and the top surfaces of the multiple support blocks are welded and connected to the bottom surface of the upper mesh plate. The upper mesh plate and the lower structural plate are welded and connected through multiple support blocks.

[0010] Preferably, a connecting pipe is arranged on one side of the ventilation duct close to the spiral main air duct. One end of the connecting pipe is hermetically connected to the ventilation duct, and the other end of the connecting pipe penetrates through the silo wall and is hermetically connected to the spiral main air duct.

[0011] Preferably, multiple support columns are welded at the bottoms of the two groups of ventilation mesh plates. The outer diameters of the two groups of ventilation mesh plates are both smaller than the inner diameter of the silo wall. The two groups of ventilation mesh plates are supported and installed inside the silo wall through multiple support columns.

[0012] (III) Advantageous Effects

[0013] Compared with the prior art, the utility model provides a fan air guiding device for a port grain storage bin body, which has the following advantageous effects:

[0014] 1. For the fan air guiding device for the port grain storage bin body, a spiral main air duct and a unique ventilation mesh plate are provided. An appropriate amount of air will enter through the ventilation mesh plate for heat dissipation and ventilation, without causing excessive wind force to blow the grain away and splash, and there is no need to adjust the wind force.

[0015] 2. A ventilation mesh plate is provided. The main air duct is used to branch out to the turbine-shaped ventilation duct in the ventilation mesh plate, and ventilation mesh holes are formed in the ventilation duct, which limits the large amount of air ejected from a single hole and will not cause excessive wind force to blow the grain away and splash.

[0016] 3. A spiral main air duct and an air outlet are provided. A large amount of air is introduced into the main air duct, and the excess air can be discharged through the air outlet. An appropriate amount of air will enter through the ventilation mesh plate for heat dissipation and ventilation. This device only needs to strengthen the wind force, without worrying about excessive wind force and without adjusting the wind force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is a schematic diagram of the outer coil pipe support of the utility model;

[0019] Figure 3 Schematic diagram of the ventilation net plate of the present utility model;

[0020] Figure 4 Schematic diagram of the ventilation duct of the present utility model;

[0021] Figure 5 Schematic diagram of the connecting pipe of the present utility model;

[0022] Figure 6 Schematic diagram of the support column of the present utility model.

[0023] In the figure: 1, silo wall; 2, capping cover; 3, spiral main air duct; 4, outer coil support; 5, air outlet; 6, air inlet; 7, fan; 8, ventilation net plate; 9, vertical support rod; 10, fixed support; 11, upper net plate; 12, lower structural plate; 13, ventilation duct; 14, ventilation net hole; 15, support block; 16, connecting pipe; 17, support column. Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figures 1-6 , the present utility model provides a technical solution:

[0026] A fan air guiding device for a port grain storage bin body, including a silo wall 1, a capping cover 2 is installed on the top of the silo wall 1, a spiral main air duct 3 is fixedly installed on the outside of the silo wall 1, an outer coil support 4 is provided on the outside of the silo wall 1, the spiral main air duct 3 is wound around the outside of the silo wall 1 through the outer coil support 4, an air outlet 5 is installed at the top end of the spiral main air duct 3, an air inlet 6 is installed at the bottom end of the spiral main air duct 3, the air inlet 6 is hermetically connected to a fan 7, and two groups of ventilation net plates 8 are installed inside the silo wall 1. The opening of the air outlet 5 needs to face downward to prevent rainwater from dripping into the interior.

[0027] Furthermore, the outer coil support 4 includes five groups of vertical support rods 9 and five groups of fixed supports 10. The five groups of fixed supports 10 are all fixed on the ground around the corresponding silo wall 1, and five groups of vertical support rods 9 are welded on the five groups of fixed supports 10, and the spiral main air duct 3 is welded to the five groups of vertical support rods 9.

[0028] Further, the ventilation grid plate 8 includes an upper grid plate 11, a lower structural plate 12, and a ventilation duct 13. The upper grid plate 11 is connected to the lower structural plate 12, and a ventilation duct 13 is provided between the upper grid plate 11 and the lower structural plate 12. A plurality of groups of ventilation holes 14 are formed in the upper grid plate 11, and the ventilation holes 14 penetrate through the upper grid plate 11 and the ventilation duct 13. A plurality of groups of support blocks 15 are welded to the lower structural plate 12, and the top surfaces of the plurality of groups of support blocks 15 are welded to the bottom surface of the upper grid plate 11. The upper grid plate 11 and the lower structural plate 12 are welded together through the plurality of groups of support blocks 15. The ventilation duct 13 is in a turbine shape, which can reduce the friction between the air and the pipe wall when the air passes through, and the air is dissipated outward from the ventilation holes 14.

[0029] Further, a connecting pipe 16 is provided on one side of the ventilation duct 13 close to the spiral main air duct 3. One end of the connecting pipe 16 is hermetically connected to the ventilation duct 13, and the other end of the connecting pipe 16 penetrates through the silo wall 1 and is hermetically connected to the spiral main air duct 3. The ventilation duct 13 is equivalent to a tributary connected to the spiral main air duct 3, and more ventilation grid plates 8 can be provided according to the size of the silo.

[0030] Further, a plurality of groups of support columns 17 are welded to the bottoms of the two groups of ventilation grid plates 8. The outer diameters of the two groups of ventilation grid plates 8 are both smaller than the inner diameter of the silo wall 1, and the two groups of ventilation grid plates 8 are supported and installed inside the silo wall 1 through the plurality of groups of support columns 17.

[0031] Working principle: When using this device, when loading grain into the silo, when the grain is loaded to a certain height, the ventilation grid plate 8 is placed and the ventilation duct 13 is connected to the spiral main air duct 3 by using the connecting pipe 16. Grain is continuously loaded above the ventilation grid plate 8. After reaching a certain height, the ventilation grid plate 8 is placed again, and the ventilation duct 13 is hermetically connected to the spiral main air duct 3 by using the connecting pipe 16. When ventilation and heat dissipation are required, the fan 7 is started to inject air into the spiral main air duct 3, and the air will be discharged from the ventilation holes 14 along the pipeline to dissipate heat and ventilate the grain.

[0032] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fan air guide device for a port grain storage silo, comprising a silo wall (1), a capping cover (2) being installed on the top of the silo wall (1), characterized in that: A spiral main air duct (3) is fixedly installed on the outside of the silo wall (1), an outer coil bracket (4) is provided on the outside of the silo wall (1), the spiral main air duct (3) is wound around the outside of the silo wall (1) through the outer coil bracket (4), an air outlet (5) is installed at the top end of the spiral main air duct (3), an air inlet (6) is installed at the bottom end of the spiral main air duct (3), the air inlet (6) is sealedly connected to the fan (7), and two sets of ventilation mesh panels (8) are installed inside the silo wall (1).

2. The fan air guide device for a port grain storage silo according to claim 1, characterized in that: The outer coil support (4) comprises five groups of vertical support rods (9) and five groups of fixed supports (10), the five groups of fixed supports (10) are all fixed on the ground around the corresponding silo wall (1), the five groups of vertical support rods (9) are welded to the five groups of fixed supports (10), and the spiral main air duct (3) is welded to the five groups of vertical support rods (9).

3. The fan air guide device for a port grain storage silo according to claim 1, characterized in that: The ventilation mesh plate (8) comprises an upper mesh plate (11), a lower structural plate (12) and a ventilation duct (13); the lower structural plate (12) is connected to the upper mesh plate (11); a ventilation duct (13) is arranged between the upper mesh plate (11) and the lower structural plate (12); a plurality of groups of ventilation mesh holes (14) are provided on the upper mesh plate (11); the ventilation mesh holes (14) penetrate the upper mesh plate (11) and the ventilation duct (13); a plurality of groups of support blocks (15) are welded to the lower structural plate (12); the top surfaces of the plurality of groups of support blocks (15) are welded to the bottom surface of the upper mesh plate (11); and the upper mesh plate (11) and the lower structural plate (12) are welded to each other via the plurality of groups of support blocks (15).

4. The fan air guide device for a port grain storage silo according to claim 3, characterized in that: A connecting pipe (16) is provided on one side of the ventilation duct (13) close to the spiral main air duct (3); one end of the connecting pipe (16) is sealedly connected to the ventilation duct (13); and the other end of the connecting pipe (16) penetrates the silo wall (1) and is sealedly connected to the spiral main air duct (3).

5. The fan air guide device for a port grain storage silo according to claim 3, characterized in that: The bottoms of the two sets of ventilation mesh panels (8) are welded with a plurality of support columns (17); the outer diameters of the two sets of ventilation mesh panels (8) are smaller than the inner diameter of the silo wall (1); and the two sets of ventilation mesh panels (8) are supported and installed inside the silo wall (1) via the plurality of support columns (17).

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