Barrel type barn grain storage method
By introducing a heat dissipation mechanism into the silo, and utilizing the cooperation of air intake and agitation components, uniform heat dissipation of the grain is achieved, solving the problem of incomplete heat dissipation in grain storage in silos and improving the stability and safety of grain storage.
Patent Information
- Application Number
- CN202510644379.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2025-10-31
AI Technical Summary
Insufficient heat dissipation is a problem in grain storage using silos, which leads to temperature differences inside the grain pile causing moisture migration, condensation, and mold growth, affecting the stability and safety of the stored grain.
The heat dissipation mechanism includes an air intake component and an agitator component. It drives airflow through fan blades and combines the design of agitator plates and scrapers to achieve uniform heat dissipation of the grain and utilizes natural ventilation for self-cleaning.
It improves the heat dissipation efficiency of grain storage, prevents the grain at the bottom from overheating, cleans the filter screen, prevents localized high temperatures, reduces the risk of mold and pests, and enhances the stability and safety of stored grain.
Smart Images
Figure CN120864059A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of grain storage technology, and in particular to a method for storing grain in a cylindrical silo. Background Technology
[0002] Cylindrical silos include shallow circular silos, vertical silos, and square or polygonal silos with a height-to-diameter ratio greater than 2. Shallow circular silos and vertical silos are typical silo types for grain storage and logistics in my country. However, existing cylindrical silos are prone to poor heat dissipation during the heat dissipation process, particularly for grain at the bottom and in the center. This can lead to incomplete heat dissipation and potentially cause the following consequences: Temperature differences within the grain pile cause moisture to migrate from high-temperature areas to low-temperature areas, easily forming condensation on the silo walls, the bottom of the grain pile, or the surface, resulting in abnormally high local moisture levels. If moisture encounters a cold surface (such as the silo wall) during the transfer process, it may form "wall sludge" or "ceiling condensation," which in severe cases can cause condensation buildup, leading to a vicious cycle within the grain pile. Summary of the Invention
[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.
[0004] In view of the problems existing in the above-mentioned silo grain storage methods, the present invention is proposed.
[0005] Therefore, the purpose of this invention is to provide a method for storing grain in a cylindrical silo, the purpose of which is to improve heat dissipation efficiency.
[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a heat dissipation mechanism, which includes an air intake component, an agitator component disposed on one side of the air intake component, a ventilation component disposed on one side of the agitator component, and the air intake component including an air intake shroud.
[0007] In a preferred embodiment of the silo grain storage method of the present invention, the air inlet hood is provided with a support frame inside, a fan blade is provided on one side of the support frame, and a filter plate is provided on one side of the air inlet hood.
[0008] As a preferred embodiment of the silo grain storage method of the present invention, a guide plate is provided on one side of the air inlet hood, and a guide groove is provided on one side of the guide plate.
[0009] In a preferred embodiment of the silo grain storage method of the present invention, a scraper is slidably connected inside the guide groove, and a plurality of counterweights are provided on one side of the scraper.
[0010] In a preferred embodiment of the silo grain storage method of the present invention, the agitating component includes a motor, a drive gear is provided on one side of the motor, and the drive gear is connected to a drive ring.
[0011] In a preferred embodiment of the silo grain storage method of the present invention, the drive ring is connected to a partial gear, a stirring plate is provided on one side of the partial gear, and a plurality of air outlets are provided on one side of the stirring plate.
[0012] In a preferred embodiment of the silo grain storage method of the present invention, the partial gear is rotatably connected to a support shaft, and a torsion spring is provided in the connecting part.
[0013] In a preferred embodiment of the silo grain storage method of the present invention, the agitator is connected to a flexible hose, and the flexible hose is connected to an annular air pipe.
[0014] In a preferred embodiment of the silo grain storage method of the present invention, the ventilation component includes an outer shell, a top cover is provided on the top of the outer shell, and a telescopic cylinder is provided on one side of the top cover.
[0015] In a preferred embodiment of the silo grain storage method of the present invention, a baffle is fixedly provided on the outer side of the top cover, a fixing ring is provided on the outer side of the outer shell, and a scraper ring is fixedly connected to the fixing ring.
[0016] The beneficial effects of this invention are as follows: the combination of the stirring component and the air intake component can better dissipate heat from the grain inside. The direction of the air outlet is opposite to the direction of stirring, which further improves efficiency. When the device is flipped, it can not only clean the filter screen, but also effectively prevent the grain at the bottom from overheating and making it difficult to dissipate heat. The ventilation component can easily utilize natural ventilation and is also self-cleaning. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0018] Figure 2 This is a schematic diagram of the ventilation component provided by the present invention.
[0019] Figure 3 This is a schematic diagram of the stirring component provided by the present invention.
[0020] Figure 4 This is a schematic diagram from another perspective provided for the present invention.
[0021] Figure 5 This is a partially enlarged view of the stirring component provided by the present invention.
[0022] Figure 6 This is a schematic diagram of the air intake component provided by the present invention.
[0023] Figure 7 This is a schematic diagram of the air intake component provided by the present invention from another perspective.
[0024] Figure 8 This is a schematic diagram of the rotating component provided by the present invention. Detailed Implementation
[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.
[0027] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.
[0028] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth. Example
[0029] Reference Figures 1-3 5. This is the first embodiment of the present invention, which provides a heat dissipation mechanism 100.
[0030] The heat dissipation mechanism 100 includes an air intake component 101, an agitator 102 on one side of the air intake component 101, and a ventilation component 103 on one side of the agitator 102. The air intake component 101 includes an air intake shroud 101a, a support frame 101b inside the air intake shroud 101a, a fan blade 101c on one side of the support frame 101b, a filter plate 101d on one side of the air intake shroud 101a, a guide plate 101e on one side of the air intake shroud 101a, a guide groove 101e-1 on one side of the guide plate 101e, a scraper 101f slidably connected inside the guide groove 101e-1, and several counterweights 101g on one side of the scraper 101f. The agitator 102 includes a motor 102a, a drive gear 102b on one side of the motor 102a, and a drive gear... The drive gear 102b is connected to the drive ring 102c, the drive ring 102c is connected to the local gear 102d, the local gear 102d is provided with a stirring plate 102e on one side, the stirring plate 102e is provided with a number of air outlets 102e-1 on one side, the local gear 102d is rotatably connected to the support shaft 102f, the connection part is provided with a torsion spring, the stirring plate 102e is connected to the hose 102g, the hose 102g is connected to the annular air pipe 102h, the ventilation component 103 includes a housing 103a, the top of the housing 103a is provided with a top cover 103b, the top of the top cover 103b is provided with a telescopic cylinder 103c, the outside of the top cover 103b is fixedly provided with a baffle 103d, the outside of the housing 103a is provided with a fixing ring 103e, and the fixing ring 103e is fixedly connected to a scraper ring 103f.
[0031] When the operator uses this device, the rotation of the fan blade 101c drives the air, starts the motor 102a, drives the drive gear 102b to rotate, and thus drives the drive ring 102c to rotate. Since the drive gear 102b and the local gear 102d do not interfere with each other, the drive ring 102c drives the local gear 102d to rotate. Because the local gear 102d has several teeth, when the local gear 102d is not in contact with the drive ring 102c, it will be reset under the action of the torsion spring, and the direction of stirring of the stirring plate 102e is fixed. The air outlet 102e-1 on the other side will blow out air or absorb hot air. Because the grain on one side pushed by the stirring plate 102e will be squeezed together, while the other side is relatively loose, the blowing or suction on this side will not be affected by the grain. During the deflection of the stirring plate 102e, since it is connected to a hose, it will not be affected. Example
[0032] Reference Figures 1-3 5, which is the second embodiment of the present invention, provides a rotating component.
[0033] When the device needs to rotate, the drive unit A is activated to rotate the rotating shaft C, thereby rotating the device and exchanging the positions of the bottom and top. At this time, the telescopic cylinder 103c, which is currently located at the top, is activated, causing the top cover 103b to move. Simultaneously, the blocking cover 103 also moves, ensuring that the blocking cover 103 maintains continuous contact with the scraper ring 103f and moves away from the fixed ring 103e. This allows the telescopic cylinder 103c to achieve a cleaning effect whether it extends or retracts. Heat exchange is achieved through natural air.
[0034] When the device rotates, the scraper 101f moves along the guide groove 101e-1 under the action of the counterweight 101g, thereby cleaning the filter plate 101d and ensuring the continuous operation of the device.
[0035] Because the device is symmetrically arranged inside and can be driven independently, it effectively avoids the difficulty of stirring caused by the pressure of the grain, and the grain that was originally at the bottom is flipped to the top, thus achieving targeted heat dissipation.
[0036] If heat dissipation is inadequate in cylindrical grain storage, the grain pile is prone to moisture diffusion due to temperature differences. Moisture migrates from high-temperature areas to low-temperature areas, causing condensation on the walls and surface of the grain pile. Local moisture content can exceed the safe threshold (12%~14%), inducing mold growth. This phenomenon is particularly pronounced in summer. The lower layers of the grain pile accumulate heat due to respiration and microbial activity, while the sudden drop in temperature at night creates a condensation surface on the walls, resulting in "water droplets" on the surface or inside the walls. These moisture-rich areas can become the origin of hot spots. Without timely intervention, the persistently high temperature at the center of the grain pile creates a "heat core effect," driving moisture to diffuse outwards and further exacerbating the vicious cycle of localized high temperatures (e.g., above 40℃), leading to loss of grain storage stability.
[0037] If heat cannot be dissipated in time, the hot and humid environment provides ideal conditions for mold growth. When the temperature of the grain pile exceeds 25°C and the humidity is above 75%, toxin-producing molds such as Aspergillus and Penicillium proliferate rapidly. For example, Aspergillus flavus can form colonies and secrete aflatoxin B1 within 48 hours at 28-35°C and humidity above 85%, directly threatening food safety. The heat released by microbial metabolic activities (e.g., 4200 kJ of heat per hour from 1 ton of moldy wheat) will push up the grain temperature, forming a vicious cycle of "self-heating - accelerated mold growth," which can lead to large-scale spoilage of the grain pile within weeks in severe cases. In addition, areas where impurities accumulate in the grain pile (such as high-impurity zones formed by automatic grading) are more likely to become breeding grounds for microorganisms and pests due to poor air permeability. The residual heat from heat dissipation (e.g., maintaining a temperature above 28°C for a long time) creates a breeding ground for stored grain pests. Taking the grain beetle as an example, its egg hatching cycle can be shortened from 30 days to 7 days under high temperatures, and the localized high-temperature zones formed by poor ventilation become "refuges" for the pests. Infestations not only directly lead to grain weight loss (a pest infestation rate exceeding 5% is considered severe), but their excrement and corpses also contaminate grain piles, causing secondary mold growth and accelerating the rise in fatty acid values (up to 30% within 3 months), significantly reducing grain quality. More seriously, some pests (such as booklice) may develop pesticide resistance in hot and humid environments, reducing the effectiveness of conventional phosphine fumigation by more than 50%. Sustained high temperatures can cause irreversible deterioration of grain components: fat oxidation produces aldehydes and ketones leading to rancidity, starch hydrolysis causes a decrease in viscosity, and protein denaturation reduces the water absorption rate of wheat gluten. Experiments show that rice stored at 30℃ for a year experiences a sharp drop in germination rate from 90% to below 40%, completely losing its seed value. Corn stored at 35℃ for six months may have peroxide values exceeding the standard by three times, easily leading to broken rice and grain breakage during processing. If there is uneven mechanical ventilation or apparent wind speed differences in the grain pile (e.g., areas below 0.1 m / s), these quality deterioration processes will be accelerated locally, causing irreversible damage. Long-term hot and humid environments also threaten the structural safety of storage facilities. The corrosion rate of metal silo roofs in an 85% humidity environment can be up to 10 times that in a dry environment, while concrete silo walls may develop structural cracks due to decreased strength caused by carbonization. Liquid water formed by condensation on the grain pile seeps into the silo joints, accelerating the aging of sealing materials and reducing the silo's airtightness from a half-life of 30 seconds at 500 Pa to below 10 seconds, severely affecting the effectiveness of fumigation and controlled atmosphere storage. In addition, the pressure difference between the hot and humid gas inside the grain pile and the cold air outside may exacerbate stress deformation of the storage structure and increase facility maintenance costs.
[0038] By combining the stirring and air intake components, the internal grains can be better cooled. The air outlet direction is opposite to the stirring direction, further improving efficiency. When the device is flipped, it can not only clean the filter screen, but also effectively prevent the grains at the bottom from overheating and having difficulty cooling. The ventilation components can easily utilize natural ventilation and are self-cleaning, thus effectively solving existing problems.
[0039] The remaining structure is the same as that in Example 2.
[0040] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novelty and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. Furthermore, for the purpose of providing a concise description of exemplary embodiments, not all features of the actual embodiments may be omitted, i.e., those features not relevant to the currently considered best mode for carrying out the invention, or those features not relevant to implementing the invention.
[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A method for storing grain in a cylindrical silo, characterized in that: include, The heat dissipation mechanism (100) includes an air intake component (101), an agitator (102) is provided on one side of the air intake component (101), and a ventilation component (103) is provided on one side of the agitator (102). The air intake component (101) includes an air intake shroud (101a).
2. The method for storing grain in a silo according to claim 1, characterized in that: The air inlet hood (101a) is provided with a support frame (101b) inside, a fan blade (101c) is provided on one side of the support frame (101b), and a filter plate (101d) is provided on one side of the air inlet hood (101a).
3. The method for storing grain in a silo according to claim 1, characterized in that: A guide plate (101e) is provided on one side of the air inlet hood (101a), and a guide groove (101e-1) is provided on one side of the guide plate (101e).
4. The method for storing grain in a silo according to claim 3, characterized in that: The guide groove (101e-1) is internally connected to a scraper (101f), and a number of counterweights (101g) are provided on one side of the scraper (101f).
5. The method for storing grain in a silo according to any one of claims 2 to 4, characterized in that: The stirring component (102) includes a motor (102a), a drive gear (102b) is provided on one side of the motor (102a), and the drive gear (102b) is connected to a drive ring (102c).
6. The method for storing grain in a silo according to claim 5, characterized in that: The drive ring (102c) is connected to a local gear (102d), and a stirring plate (102e) is provided on one side of the local gear (102d). A plurality of air outlets (102e-1) are provided on one side of the stirring plate (102e).
7. The method for storing grain in a silo according to claim 6, characterized in that: The local gear (102d) is rotatably connected to a support shaft (102f), and a torsion spring is provided in the connecting part.
8. The method for storing grain in a silo according to claim 7, characterized in that: The stirring plate (102e) is connected to a hose (102g), and the hose (102g) is connected to an annular air tube (102h).
9. The method for storing grain in a silo according to claim 7, characterized in that: The ventilation component (103) includes a housing (103a), a top cover (103b) is provided on the top of the housing (103a), and a telescopic cylinder (103c) is provided on one side of the top cover (103b).
10. The method for storing grain in a silo according to claim 9, characterized in that: A baffle (103d) is fixedly provided on the outer side of the top cover (103b), and a fixing ring (103e) is provided on the outer side of the outer shell (103a). A scraper ring (103f) is fixedly connected to the fixing ring (103e).