Grain ventilation cooling tower

Abstract

The utility model discloses a grain ventilation cooling tower, which relates to the technical field of grain storage and comprises a grain tower, a top grain feeding hopper and a grain discharging hopper are respectively arranged at the upper end and the lower end of the grain tower, the grain tower further comprises a material guide component, a buffer section, an air inlet section and an air outlet section are sequentially arranged in the grain tower from top to bottom, and an air inlet cover is circumferentially arranged on the outer wall of the air inlet section of the grain tower. According to the grain tower, the air inlet section, the exhaust section, the buffer section and the material guide assembly are arranged, fixed grain pile ventilation of grains can be changed into flowing ventilation in the tower through the material guide effect of the auger, each part of grains passes through the same air distribution section, the grain distribution efficiency is improved, and the grain distribution efficiency is improved. Therefore, each part of grain can be uniformly cooled, and the ventilation cooling effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain storage, and in particular relates to a grain ventilation cooling tower. Background Art

[0002] The storage of grain is a continuation of agricultural cultivation. Granaries are an important part of grain storage technology. Due to the influence of external environmental factors, especially when the moisture content of grain is higher than the safe moisture content, improper storage often causes the grain temperature to rise, causing mold and deterioration, thus resulting in grain loss. One of the keys to safe grain storage is frequent ventilation, which is conducive to timely dissipation of heat and moisture in the grain pile, achieving the purpose of ventilation and drying. At present, the commonly used cooling methods include ventilation and cooling of grain piles. The existing granaries install axial flow fans after opening holes on the side walls to ventilate and dissipate heat for the internal grain. However, this method is used to fix the grain pile. Since the grain is piled in the granary, for the grain piled in the center of the granary, due to its distance from the silo wall, the ventilation and heat dissipation effect of the grain inside is poor, resulting in uneven ventilation, and it is still difficult to cool down locally, and some grain is still lost due to mold. The patent authorization number is CN208821262U, which discloses a granary with ventilation function. The grain is transported upward from the bottom of the granary through an auger to achieve grain circulation ventilation. However, the granary only relies on the silo wall for ventilation and cooling, and the ventilation effect is poor. In addition, the air inlet and outlet are arranged at the bottom of the granary. The wind carrying the heat of the grain at the top of the granary cannot be discharged from the granary in time and quickly, and the phenomenon of uneven ventilation in the granary still exists. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model provides a grain ventilation cooling tower, which can achieve flow ventilation of grain through the cooperation of a material guide plate and an auger, and can improve the ventilation effect in the granary under the dual ventilation effect of the silo wall and the pipe wall.

[0004] The utility model solves the technical problem by adopting the following scheme: a grain ventilation cooling tower, comprising a grain tower, wherein the upper and lower ends of the grain tower are respectively provided with a top grain inlet hopper and a grain discharge hopper, and also comprising a material guide assembly, wherein a buffer section, an air inlet section and an exhaust section are sequentially provided in the grain tower from top to bottom, an air inlet hood is circumferentially provided on the outer wall of the air inlet section of the grain tower, and the air inlet hood is enclosed on the outer wall of the grain tower to form an air inlet cavity, air vents are evenly distributed on the silo wall of the air inlet section of the grain tower, and exhaust holes are evenly distributed on the silo wall of the air outlet section of the grain tower, and a fan is provided on the side of the grain tower, and the fan is connected to the air inlet hood through an air inlet pipe; A guide plate is fixed in the buffer section of the grain tower by a cross bar, and the material guide assembly includes a feed pipe vertically arranged in the center of the grain tower, and the guide plate is fixed to the feed pipe, a motor is installed in the feed pipe, and the output end of the motor is connected to an auger sleeved in the feed pipe, and a discharge port is provided on the side wall of the feed pipe, and the discharge port is located above the guide plate; the pipe wall of the feed pipe is a hollow sandwich structure, and a vent hole 2 is provided on the inner wall of the feed pipe, and a hollow shaft rod is rotatably sleeved in the air intake section of the grain tower, and the two ends of the hollow shaft rod are respectively connected to the air inlet cavity and the hollow interlayer of the pipe wall of the feed pipe.

[0005] Furthermore, a material guide plate is circumferentially provided on the hollow shaft.

[0006] Furthermore, a plurality of groups of air intake sections and exhaust sections can be arranged in the grain tower according to the height of the grain tower, and the air intake chamber of each group of air intake sections is connected to the fan through an air intake pipe.

[0007] Furthermore, a hollow shaft and a material guide plate are symmetrically arranged in each group of air intake sections.

[0008] Furthermore, a rain shelter is provided around the outer wall of the grain tower exhaust section.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model provides an air intake section, an exhaust section, a buffer section and a material guiding assembly, and the material guiding effect of the auger can change the fixed grain pile ventilation into flowing ventilation in the tower. Each part of the grain passes through the same air distribution section, so each part of the grain can be evenly cooled, and multiple groups of air distribution sections can be provided to shorten the distance between the air intake and exhaust of the grain tower, so that the wind carrying the heat of the grain can be quickly discharged, thereby improving the ventilation and cooling effect; during the ventilation of the grain tower silo wall, part of the wind can enter the feed pipe through the hollow shaft rod to ventilate the grain in the conveying, and the synchronous ventilation of the grain tower silo wall and the feed pipe wall can improve the uniformity of grain cooling and greatly improve the cooling efficiency, and the flowing grain can also drive the guide plate to rotate, and then the guide plate turns the grain, so that the grain in the middle is turned to a position close to the silo wall, further improving the uniformity of grain ventilation, and through the mutual cooperation between the above structures, the problems of fixed ventilation of the grain pile, poor uniformity and low efficiency can be completely avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the grain tower of the utility model;

[0013] Figure 3 This is a schematic diagram of the front cross-sectional structure of the buffer section of the utility model;

[0014] Figure 4 This is a schematic diagram of the top view structure of the buffer section of the utility model;

[0015] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the utility model.

[0016] In the figure: 1. tower base; 2. grain tower; 21. buffer section; 22. air intake section; 23. exhaust section; 24. grain discharge hopper; 25. top grain inlet hopper; 26. air inlet hood; 27. rain shield; 3. material guide assembly; 31. feed pipe; 32. motor; 33. auger; 34. discharge port; 4. guide plate; 5. cross bar; 6. fan; 7. air inlet pipe; 8. hollow shaft; 9. material guide plate. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] See also Figure 1-5 The utility model provides a technical solution for a grain ventilation cooling tower: Example

[0019] according to Figure 1 and Figure 2As shown, the grain tower 2 is supported by the tower base 1, and a top grain inlet hopper 25 is provided at the upper end of the grain tower 2, and a grain discharge hopper 24 is provided at the lower end of the grain tower 2. Grain enters the grain tower 2 from the top grain inlet hopper 25 and is discharged from the outlet of the grain discharge hopper 24. A buffer section 21, an air intake section 22 and an exhaust section 23 are sequentially provided in the grain tower 2 from top to bottom. An air inlet hood 26 is circumferentially provided on the outer wall of the air intake section 22 of the grain tower 2. The air inlet hood 26 is enclosed on the outer wall of the grain tower 2 to form an air inlet cavity. Ventilation holes are evenly distributed on the warehouse wall of the air intake section 22 of the grain tower 2. A fan 6 is installed on the outside of the grain tower 2, and the air outlet of the fan 6 The air inlet pipe 7 is connected to the air inlet cover 26, and the air entering the air inlet cavity can flow into the air inlet section 22 of the grain tower 2 through the vent hole, and the warehouse wall of the air outlet section of the grain tower 2 is evenly provided with exhaust holes. The outside air enters the air inlet pipe 7 through the fan 6, and enters the air inlet section 22 along the air inlet cavity. The air passes through the air inlet section 22 through the exhaust section 23 and is discharged from the tower body. In the process from the air inlet section 22 to the exhaust section 23, the air must pass through the gaps between the grains, which plays a role in cooling the grains. The air volume of the fan 6 is adjustable, and the air volume can be adjusted according to the heating condition of the grains to reduce the grains to a reasonable temperature.

[0020] like Figure 3 As shown, a cross bar 5 is installed in the buffer section 21 of the grain tower 2, and an inverted cone-shaped guide plate 4 is fixed on the cross bar 5. A material guide assembly 3 is provided in the grain tower 2. The material guide assembly 3 includes a feed pipe 31 vertically arranged in the center of the grain tower 2, and the guide plate 4 is fixedly connected to the feed pipe 31. A motor 32 is installed on the top of the feed pipe 31. An auger 33 is connected to the output end of the motor 32. The auger 33 is sleeved in the feed pipe 31 and matches the inner diameter of the feed pipe 31. A discharge port 34 is opened on the side wall of the feed pipe 31. , and the discharge port 34 is located above the guide plate 4. The motor 32 drives the auger 33 to rotate, so that the grain at the bottom of the grain tower 2 can be transported to the top through the feed pipe 31 and discharged from the discharge port 34. Under the guiding effect of the guide plate 4, the grain falls close to the warehouse wall. Under the action of the auger 33, the grain in the grain tower 2 continuously circulates from top to bottom. The grain continuously passes through the air intake section 22 and the exhaust section 23, which can be fully ventilated, evenly reduce the grain temperature, and the efficiency is higher than that of ventilation and cooling of conventional static grain piles.

[0021] The wall of the feeding pipe 31 is a hollow sandwich structure, and a vent hole 2 is opened on the inner wall of the feeding pipe 31. A hollow shaft 8 is symmetrically rotated in the air inlet section 22 of the grain tower 2, and the two ends of the hollow shaft 8 are respectively connected to the air inlet cavity and the hollow sandwich of the wall of the feeding pipe 31. A part of the wind generated by the fan 6 directly enters the grain tower 2 through the air inlet cavity and the vent hole 1, and the other part of the wind flows into the hollow sandwich of the feeding pipe 31 through the hollow shaft 8 and is discharged into the feeding pipe 31 through the vent hole 2, which is used for the feeding in the feeding pipe 31. The grain is ventilated and cooled, and a guide plate 9 is provided on the hollow shaft 8. When the grain between the silo wall of the grain tower 2 and the feed pipe 31 flows from top to bottom under the guiding action of the auger 33, the downward flow of the grain will drive the guide plate 9 to rotate. The grain can be turned over by the guide plate 9, so that the grain in the middle position is turned to a position close to the silo wall, thereby further improving the uniformity of grain ventilation. The outer wall of the exhaust section 23 of the grain tower 2 is circumferentially provided with a rain shield 27, which can prevent rainwater from entering the grain tower 2 through the exhaust hole when it rains.

[0022] When in use, the utility model is a grain ventilation cooling tower. The motor 32 drives the auger 33 to rotate, and the grain accumulated in the grain tower 2 is guided from the bottom to the top through the auger 33 and falls back into the grain tower 2 through the guide plate 4, so as to realize the circulation of the grain in the grain tower 2. At the same time, the outside wind enters the air inlet chamber through the fan 6 and the air inlet pipe 7. A part of the wind directly enters the grain tower 2 through the air inlet chamber and the air vent 1. The air passes through the gap between the grains from the air inlet section 22, and is discharged from the tower body through the exhaust section 23 after ventilating and cooling the grains. Another part of the wind flows into the hollow interlayer of the feed pipe 31 through the hollow shaft 8, and is discharged into the feed pipe 31 from the air vent 2, so as to ventilate and cool the grain being transported in the feed pipe 31. When the grain flows from top to bottom, it will drive the guide plate 9 to rotate, and the grain in the middle position will be turned to a position close to the warehouse wall through the guide plate 9, so that the grain in the middle can be close to the air vent 1, so that the grain can be evenly ventilated and cooled. Example

[0023] On the basis of the first embodiment, Figure 1 and Figure 2 As shown, a plurality of groups of air intake sections 22 and exhaust sections 23 can be arranged in the grain tower 2 according to the height of the grain tower, and the air intake chamber of each group of air intake sections 22 is connected to the fan 6 through the air intake pipe 7, and a hollow shaft 8 and a material guide plate 9 are symmetrically arranged in each group of air intake sections 22. By arranging a plurality of groups of air intake sections 22 and exhaust sections 23, the distance between the air intake sections 22 and exhaust sections 23 in the same group can be shortened, so that the wind entering the grain tower 2 can be quickly discharged from the nearest exhaust section 23 after carrying away the heat of the grain, thereby improving the ventilation and cooling effect.

[0024] The above description is only a preferred embodiment of the present invention and does not limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A grain ventilation cooling tower, comprising a grain tower, wherein the upper and lower ends of the grain tower are respectively provided with a top grain inlet hopper and a grain outlet hopper, characterized in that: The grain tower also includes a material guide component, wherein a buffer section, an air intake section and an exhaust section are sequentially arranged in the grain tower from top to bottom, an air intake cover is circumferentially arranged on the outer wall of the air intake section of the grain tower, and the air intake cover is enclosed on the outer wall of the grain tower to form an air intake cavity, and air vents are evenly arranged on the warehouse wall of the air intake section of the grain tower, and exhaust holes are evenly arranged on the warehouse wall of the air outlet section of the grain tower, and a fan is arranged on the side of the grain tower, and the fan is connected to the air intake cover through an air intake pipe; a guide plate is fixed in the buffer section of the grain tower through a cross bar, and the material guide component includes a vertical A feed pipe is arranged at the center of the grain tower, and a guide plate is fixed to the feed pipe, a motor is installed in the feed pipe, and the output end of the motor is connected to an auger sleeved in the feed pipe, a discharge port is provided on the side wall of the feed pipe, and the discharge port is located above the guide plate; the pipe wall of the feed pipe is a hollow sandwich structure, and two air holes are provided on the inner wall of the feed pipe, a hollow shaft is rotatably sleeved in the air intake section of the grain tower, and the two ends of the hollow shaft are respectively connected to the air intake cavity and the hollow sandwich of the pipe wall of the feed pipe.

2. A grain ventilation cooling tower according to claim 1, characterized in that: A material guide plate is circumferentially arranged on the hollow shaft.

3. A grain ventilation cooling tower according to claim 1, characterized in that: A plurality of groups of air intake sections and exhaust sections can be arranged in the grain tower according to the height of the grain tower, and the air intake chamber of each group of air intake sections is connected to the fan through an air intake pipe.

4. A grain ventilation cooling tower according to claim 3, characterized in that: A hollow shaft and a material guide plate are symmetrically arranged in each group of air intake sections.

5. A grain ventilation cooling tower according to claim 1, characterized in that: A rain shelter is provided around the outer wall of the grain tower exhaust section.

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