A grain storage ventilation and drying device
By designing a flexibly adjustable ventilation cage and electrical control system in the grain silo ventilation system, the problem of the existing ventilation system's inability to be adjusted in real time was solved, achieving high efficiency and energy saving in all-round heat dissipation of grain.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DRYLAND AGRI INST GANSU ACADEMY OF AGRI SCI
- Filing Date
- 2025-08-08
- Publication Date
- 2026-06-30
AI Technical Summary
The existing ventilation system is not flexible enough in terms of the layout and position adjustment of the ventilation cages. It cannot be adjusted in real time according to the stacking of grain in the grain warehouse and the changes in temperature and humidity, and cannot meet the ventilation needs of different storage stages and different grain varieties.
A grain storage ventilation and drying device was designed, which uses three sets of ventilation cages connected to a semi-circular shell through rotating components. The motor drives the gears to rotate, allowing the ventilation cages to flexibly change position and angle. Combined with temperature sensors and electrically controlled valves, it can achieve precise heat dissipation to different parts of the grain.
It achieves all-round and multi-angle heat dissipation of grain, improves heat dissipation effect, enhances pertinence and practicality, and reduces heat dissipation energy consumption.
Smart Images
Figure CN224419441U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of grain storage technology, and specifically relates to a grain storage ventilation and drying device. Background Technology
[0002] Food is a fundamental resource for human survival and development, and its safe storage is of paramount importance for ensuring national food security, stabilizing market supply, and responding to emergencies. As a major agricultural country, my country has a huge grain output, requiring the storage of a large amount of grain every year. Grain warehouses, as the primary storage facilities, directly affect the quality and shelf life of the grain.
[0003] Ventilation cages are an indispensable and important component of grain storage ventilation and drying systems. They are typically buried inside the grain pile and function as an air distribution device, guiding and evenly distributing airflow. Their main function is to effectively introduce airflow generated by ventilation equipment such as blowers into the grain pile, allowing air to flow freely between the grain particles. This achieves the purposes of regulating temperature and humidity within the grain storage, removing heat and moisture generated by grain respiration, preventing mold and insect infestation, and ensuring the quality and safety of the grain during storage.
[0004] The existing improved ventilation system is still not flexible enough in terms of the layout and position adjustment of the ventilation cage. Once the ventilation cage is installed, its position and angle are basically fixed, making it difficult to adjust in real time according to the stacking of grain in the grain warehouse and changes in temperature and humidity, and thus failing to meet the ventilation needs of different storage stages and different grain varieties. Utility Model Content
[0005] The purpose of this invention is to provide a grain storage ventilation and drying device to solve the problems mentioned in the background art.
[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:
[0007] A grain storage ventilation and drying device includes a blower mechanism and a ventilation mechanism. The ventilation mechanism includes a semi-circular shell with three sets of ventilation cages on its sidewalls. Each of the three sets of ventilation cages is equipped with a connecting pipe. The middle ventilation cage is fixedly connected to the semi-circular shell via the connecting pipe. Rotating components are provided between the two side ventilation cages and the semi-circular shell. A three-headed diversion pipe is provided inside the semi-circular shell and is connected to the blower mechanism. The three-headed diversion pipe is connected to the connecting pipes of the three sets of ventilation cages via flexible hoses.
[0008] The rotating assembly is rotatably mounted inside the semi-circular housing with two first gears meshing with each other. The connecting pipes on both sides of the semi-circular housing are fixed to the two first gears. The side wall of the semi-circular housing has a slot for the connecting pipes to pass through. A second gear that meshes with one of the first gears is rotatably mounted inside the semi-circular housing. A motor is installed inside the semi-circular housing, and the output shaft of the motor is connected to the second gear.
[0009] The ventilation cage is provided with a ventilation cavity, which is connected to the connecting pipe, and the side wall of the ventilation cage is provided with a number of ventilation holes.
[0010] The ventilation cage is assembled from multiple cage bodies. Each cage body has a connecting frame at both ends. The connecting frame has multiple connecting holes, and two connecting frames are connected by bolts passing through the connecting holes.
[0011] The bottom of the ventilation cage is equipped with several casters.
[0012] Several temperature sensors are installed at the bottom of the ventilation cage.
[0013] The three outlets of the three-headed diverter are each equipped with an electrically controlled valve.
[0014] This device is equipped with three sets of ventilation cages buried in the grain pile. The air generated by the blower is diverted through the three-headed diversion pipe and then enters each ventilation cage through the hose and connecting pipe, and is then discharged from the ventilation hole. It can dissipate heat from the grain in all directions and from multiple angles, effectively improving the heat dissipation effect.
[0015] The ventilation cages on both sides of this utility model are connected to the semi-circular shell through a rotating component. The motor drives the second gear to rotate, which in turn drives the two meshing first gears to rotate in different directions, thereby causing the ventilation cages on both sides to move relative to or away from each other. This design can flexibly change the position of the ventilation cages to dissipate heat to different parts of the grain, enhancing the targetedness and practicality of heat dissipation. Attached Figure Description
[0016] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of a grain storage ventilation and drying device according to the present invention;
[0018] Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of a grain storage ventilation and drying device according to the present invention;
[0019] Figure 3 for Figure 2 Enlarged structural diagram at point A;
[0020] Figure 4 This is a schematic diagram of the structure of the ventilation cage of this utility model.
[0021] The symbols for the main components are explained below:
[0022] 0. Blower mechanism, 1. Semi-circular shell, 11. Ventilation cage, 111. Cage body, 112. Connecting frame, 113. Bolt, 114. Moving wheel, 12. Connecting pipe, 13. Three-headed diversion pipe, 14. Hose, 15. First gear, 16. Slot, 17. Second gear, 18. Motor, 2. Temperature sensor, 3. Electrically controlled valve. Detailed Implementation
[0023] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.
[0024] like Figure 1-4 As shown, a grain storage ventilation and drying device of this utility model includes a blower mechanism 0 and a ventilation mechanism. The ventilation mechanism includes a semi-circular shell 1. Three sets of ventilation cages 11 are provided on the side wall of the semi-circular shell 1. Each of the three sets of ventilation cages 11 is provided with a connecting pipe 12. The middle ventilation cage 11 is fixedly connected to the semi-circular shell 1 through the connecting pipe 12. A rotating component is provided between the two side ventilation cages 11 and the semi-circular shell 1. A three-head diversion pipe 13 is provided inside the semi-circular shell 1. The three-head diversion pipe 13 is connected to the blower mechanism 0. The three-head diversion pipe 13 is connected to the connecting pipes 12 of the three sets of ventilation cages 11 through a flexible hose 14.
[0025] Two first gears 15 are rotatably mounted inside the semi-circular housing 1. The two first gears 15 mesh with each other. The connecting pipes 12 of the two sides of the semi-circular housing 1 are fixed to the two first gears 15. The side wall of the semi-circular housing 1 is provided with a slot 16 for the connecting pipe 12 to pass through. A second gear 17 that meshes with one of the first gears 15 is rotatably mounted inside the semi-circular housing 1. A motor 18 is installed inside the semi-circular housing 1. The output shaft of the motor 18 is connected to the second gear 17.
[0026] The ventilation cage 11 is provided with a ventilation chamber, which is connected to the connecting pipe 12. The side wall of the ventilation cage 11 is provided with several ventilation holes.
[0027] The blower mechanism 0 is used to provide air source. The blower mechanism 0 diverts the air source through the ventilation mechanism to dissipate heat from the grain, thereby reducing heat dissipation energy consumption and improving heat dissipation effect.
[0028] Three sets of ventilation cages 11 are located at the bottom of the grain silo and buried in the grain pile. The blower mechanism 0 generates airflow which is diverted through the three-headed diversion pipe 13, then enters the connecting pipe 12 through the hose 14, and then enters the ventilation chamber of the three sets of ventilation cages 11, and is discharged from the ventilation holes of the ventilation cages 11 to dissipate heat from the grain.
[0029] By starting the motor 18, the output shaft of the motor 18 drives the second gear 17 to rotate. Since the second gear 17 meshes with the first gear 15, and the two first gears 15 mesh with each other, the two first gears 15 will rotate in different directions. This can drive the two ventilation cages 11 on both sides to move relative to each other or in opposite directions, changing the position of the two ventilation cages 11. Changing the position of the two ventilation cages 11 can heat the grain at different locations, making it more practical.
[0030] The ventilation cage 11 is assembled from multiple cage bodies 111. Each cage body 111 has a connecting frame 112 at both ends. The connecting frame 112 has multiple connecting holes. Two connecting frames 112 are connected by bolts 113 passing through the connecting holes.
[0031] The ventilation cage 11 is assembled from multiple cage bodies 111. The connecting frames 112 of two adjacent cage bodies 111 abut against each other, and their connecting holes are aligned with each other. Then, bolts are inserted into the connecting holes and nuts are used to fix them. In actual use, the length of the ventilation cage 11 can be adjusted according to the size of the grain silo by controlling the number of cage bodies.
[0032] The bottom of the ventilation cage 11 is equipped with several casters 114. When the ventilation cage 11 is placed on the grain warehouse floor, the casters 114 are in contact with the ground. When the ventilation cages 11 on both sides are adjusted, the casters 114 can reduce the friction force.
[0033] Several temperature sensors 2 are installed at the bottom of the ventilation cage 11;
[0034] Each of the three outlets of the three-headed diverter pipe 13 is equipped with an electrically controlled valve 3;
[0035] Temperature sensors 2 are arranged in a linear array along the ventilation cage 11. Temperature sensors 2 can monitor the temperature of the grain, while the electronically controlled valve 3 can control the opening and closing of the three-headed diversion pipe 13. When the temperature sensor 2 inside the ventilation cage 11 detects that the grain temperature has risen, the electronically controlled valve 3 on the three-headed diversion pipe 13 opens accordingly, and the blower mechanism 0 generates airflow to dissipate heat from the corresponding grain part through the ventilation cage 11. This effectively dissipates heat from the grain in the target area, avoids the dispersion of airflow, and achieves the purpose of reducing heat dissipation energy consumption and improving heat dissipation effect.
[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A grain storage ventilation and drying device, comprising a blower mechanism and a ventilation mechanism, characterized in that: The ventilation mechanism includes a semi-circular shell, and three sets of ventilation cages are provided on the side wall of the semi-circular shell. Each of the three sets of ventilation cages is provided with a connecting pipe. The middle ventilation cage is fixedly connected to the semi-circular shell through the connecting pipe. Rotating components are provided between the ventilation cages on both sides and the semi-circular shell. A three-head diversion pipe is provided inside the semi-circular shell. The three-head diversion pipe is connected to the blower mechanism and is connected to the connecting pipes of the three sets of ventilation cages through flexible hoses. The rotating assembly is rotatably mounted inside the semi-circular housing with two first gears meshing with each other. The connecting pipes on both sides of the semi-circular housing are fixed to the two first gears. The side wall of the semi-circular housing has a slot for the connecting pipes to pass through. A second gear that meshes with one of the first gears is rotatably mounted inside the semi-circular housing. A motor is installed inside the semi-circular housing, and the output shaft of the motor is connected to the second gear.
2. The grain storage ventilation and drying device according to claim 1, characterized in that: The ventilation cage is provided with a ventilation cavity, which is connected to the connecting pipe, and the side wall of the ventilation cage is provided with a number of ventilation holes.
3. The grain storage ventilation and drying device according to claim 2, characterized in that: The ventilation cage is assembled from multiple cage bodies. Each cage body has a connecting frame at both ends. The connecting frame has multiple connecting holes, and two connecting frames are connected by bolts passing through the connecting holes.
4. A grain storage ventilation and drying device according to claim 3, characterized in that: The bottom of the ventilation cage is equipped with several casters.
5. A grain storage ventilation and drying device according to claim 4, characterized in that: Several temperature sensors are installed at the bottom of the ventilation cage.
6. A grain storage ventilation and drying device according to claim 5, characterized in that: The three outlets of the three-headed diverter are each equipped with an electrically controlled valve.