Rice storage bin

Abstract

The utility model discloses a rice storage bin which comprises a bin body assembly, a stirring structure and a cooling structure. The bin body assembly comprises a bin body and a bin cover, the bin body is used for storing rice, the bin cover is movably connected to an opening of the bin body, and a feeding opening is formed in the bin cover; the stirring structure comprises a stirring shaft and stirring blades, one end of the stirring shaft is rotationally connected to the bin cover and extends towards the interior of the bin body, the stirring blades are arranged on the peripheral side of the stirring shaft, and the stirring shaft rotates to drive the stirring blades to rotate to stir rice; one end of the cooling structure is arranged on the bin cover, the other end of the cooling structure extends towards the interior of the bin body, and the cooling structure is arranged on the peripheral side of the stirring structure. Cooling liquid is conveyed into the bin body through the cooling structure and makes contact with the rice through the cooling pipe, heat exchange is conducted in the flowing process of the cooling liquid, the rice is turned over through the stirring structure, so that gaps between the rice are enlarged, and rapid cooling of a rice pile is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of grain storage technology, and specifically relates to a rice storage silo. Background Technology

[0002] Rice, as a raw material for many foods, usually needs to be stored on a large scale before processing. However, if not properly managed during storage, rice is prone to becoming damp and moldy, directly affecting its quality and causing waste.

[0003] Currently, the design of the ventilation system directly affects storage quality and energy efficiency during rice storage. The two main ventilation methods are natural ventilation and mechanical ventilation: natural ventilation relies on vents in the storage silo for passive air exchange using ambient airflow, while mechanical ventilation forces air circulation through fans. Both systems are typically used in conjunction with stirring devices to agitate the rice and dissipate heat, but both face significant technical bottlenecks in practical applications. Natural ventilation is constrained by environmental conditions, limiting airflow penetration depth; while mechanical ventilation can enhance airflow intensity, it presents a challenge in balancing energy consumption and efficiency—short-term ventilation is insufficient to completely remove the heat accumulated inside the rice pile, while prolonged ventilation time can lead to overheating of the fans, affecting system stability. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a rice storage bin that can solve the problem of overheating of the fan equipment and affecting the stable operation of the system caused by extending the ventilation time of the rice storage bin.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rice storage bin, comprising:

[0007] A storage container assembly includes a storage container body and a storage container cover. The storage container body is used to store rice, and the storage container cover is movably connected to the opening of the storage container body. The storage container cover has a feed inlet, and the storage container body is provided with a discharge pipe.

[0008] A stirring structure includes a stirring shaft and stirring blades. One end of the stirring shaft is rotatably connected to the bin cover and extends toward the interior of the bin. The stirring blades are disposed around the periphery of the stirring shaft. Rotation of the stirring shaft drives the stirring blades to rotate and stir the rice.

[0009] The cooling structure has one end attached to the bin cover and the other end extending toward the interior of the bin body. The cooling structure is located around the stirring structure and is used to absorb heat from the rice.

[0010] Preferably, the cooling structure includes a cooling pipe, a centrifugal pump, and a coolant storage tank. The coolant storage tank is located on one side of the chamber and connected to the inlet end of the centrifugal pump. The outlet end of the centrifugal pump is connected to the cooling pipe.

[0011] Preferably, the cooling pipe has a spiral structure, with an inlet end and an outlet end. The inlet end of the cooling pipe is connected to the outlet end of the centrifugal pump. The cooling pipe passes through the bottom of the chamber cover and the chamber body in sequence and is connected to the coolant storage tank.

[0012] Preferably, the coolant storage tank has a cooling chamber and a storage chamber, and the outlet end of the cooling pipe passes through the cooling chamber and communicates with the cooling chamber.

[0013] Preferably, the coolant is a propylene glycol solution.

[0014] Preferably, a drying box is provided around the cooling pipe.

[0015] Preferably, a sealing ring is provided between the cooling pipe and the chamber body and the chamber cover.

[0016] Preferably, the cooling structure is provided in two sets and is symmetrically arranged on both sides of the stirring structure.

[0017] Preferably, the cover is provided with an air outlet, the air outlet is connected to an exhaust structure, and the periphery of the compartment is provided with an air inlet, the air inlet being covered by a cover plate.

[0018] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0019] By setting up a cooling structure, coolant is transported into the storage chamber and comes into contact with the rice through cooling pipes. Heat exchange occurs during the flow of coolant. The stirring structure turns the rice over, increasing the gaps between the rice grains. Under the action of the exhaust structure, the cold air is diffused, increasing the contact area between the cold air and the rice, shortening the ventilation time, achieving rapid cooling of the rice pile, improving heat dissipation efficiency, and keeping the rice pile stored under optimal conditions, effectively preventing the rice from becoming moldy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a rice storage bin according to this utility model;

[0021] Figure 2 This is a schematic diagram of the first part of the structure of a rice storage bin according to this utility model;

[0022] Figure 3 This is a schematic diagram of the second part of the structure of a rice storage bin according to this utility model.

[0023] In the attached diagram, 1-bin body, 11-feed inlet, 12-air inlet, 13-discharge pipe, 131-discharge valve, 14-leakage prevention mesh, 2-bin cover, 21-air outlet, 3-stirring structure, 31-stirring shaft, 32-stirring blades, 33-stirring motor, 4-cooling structure, 41-cooling pipe, 42-centrifugal pump, 43-coolant storage tank, 431-cooling cavity, 432-refrigeration element, 433-serpentine mounting groove, 434-storage cavity, 5-temperature sensor, 6-drying box, 7-exhaust structure, 71-exhaust pipe, 72-exhaust fan, 8-cover plate, 9-sealing ring. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0026] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] To resolve the above issues, please refer to [link / reference]. Figures 1 to 3This utility model provides a rice storage bin, including a bin body assembly, a stirring structure 3, and a cooling structure 4. The bin body assembly includes a bin body 1 and a bin cover 2. The bin body 1 is used to store rice, and the bin cover 2 is movably connected to the opening of the bin body 1. The bin cover 2 has a feed inlet 11, and the bin body 1 is provided with a discharge pipe. The stirring structure 3 includes a stirring shaft 31 and stirring blades 32. One end of the stirring shaft 31 is rotatably connected to the bin cover 2 and extends toward the interior of the bin body 1. The stirring blades 32 are disposed around the stirring shaft 31. The rotation of the stirring shaft 31 drives the stirring blades 32 to rotate and stir the rice. One end of the cooling structure 4 is disposed on the bin cover 2, and the other end extends toward the interior of the bin body 1. The cooling structure 4 is disposed around the stirring structure 3 and is used to absorb heat from the rice.

[0029] Among them, such as Figure 2 As shown, the feed inlet 11 is used by an external conveyor to feed rice into the storage bin, and a feed valve can be installed. The discharge channel 13 is used for unloading, and a discharge valve 131 is installed in the discharge channel 13 during storage. To accurately determine the temperature changes during rice storage, multiple temperature sensors 5 are installed on the inner wall of the bin 1 and the stirring shaft 31, arranged in a circular pattern, and located at the high, middle, and low positions of the bin 1 and the stirring rod, respectively. The temperature sensors 5 on the stirring rod are staggered from the stirring blades 32. Furthermore, a control console is provided, which is electrically connected to the centrifugal pump 42 and the stirring motor 33 that drives the stirring shaft 31 to rotate. The control console is equipped with a display screen to show the temperature data sensed by the temperature sensors 5. To increase the stirring area, multiple stirring blades 32 are provided and are equidistantly distributed along the length of the stirring rod. When the storage temperature inside the bin 1 is too high, the operator can control the operation of the stirring structure 3 and the cooling structure 4 through the control console.

[0030] In optional embodiments, such as Figure 1 and Figure 3As shown, the cooling structure 4 includes a cooling pipe 41, a centrifugal pump 42, and a coolant storage tank 43. The coolant storage tank 43 is located on one side of the chamber 1 and connected to the inlet of the centrifugal pump 42. The outlet of the centrifugal pump 42 is connected to the cooling pipe 41. The cooling pipe 41 is made of stainless steel, which has good heat transfer performance and is not easily broken. It will not leak due to external factors such as sharp rice husks damaging the cooling pipe 41. Propylene glycol solution is used as the coolant for indirect contact heat transfer. The temperature of the propylene glycol solution is controlled at about 15°C, close to the storage temperature of rice. To avoid the formation of water droplets, drying boxes 6 are provided around the cooling pipe 41 and the stirring shaft 31. The drying boxes 6 are made of plastic and filled with activated alumina for moisture absorption. The drying boxes 6 can be fixed to the cooling pipe 41 and the stirring shaft 31 by clamping or screwing. Furthermore, the silo cover 2 is provided with an air outlet 21, which is connected to an exhaust structure 7. Air inlets 12 are provided on the periphery of the silo body 1, and each air inlet 12 is covered with a cover plate 8. The air inlets 12 allow outside air to enter the silo body 1 during ventilation and cooling of the rice. Combined with the exhaust structure 7, the air flows from bottom to top through the gaps between the rice grains, carrying away the heat from the rice. Furthermore, to prevent rice from leaking out of the air inlets 12, a leak-proof mesh 14 is installed on the inner wall of the silo body 1 at a position corresponding to the air inlets 12. The mesh size of the leak-proof mesh 14 is smaller than the size of the rice grains. The cover plate 8 is connected to the periphery of the chamber 1 by hinges. When the cover is opened, the heat dissipation holes are exposed. The movable end of the cover is hooked to the chamber 1 by hooks. A sealing gasket is provided at the connection between the cover plate 8 and the chamber 1 to improve the sealing between the two and prevent outside humid air from entering the chamber 1 through the gap between the two. The exhaust structure 7 includes an exhaust pipe 71 and an exhaust fan 72. The exhaust fan 72 is electrically connected to the control console. The exhaust structure 7 improves the ventilation efficiency inside the chamber 1.

[0031] In optional embodiments, such as Figure 2 As shown, the cooling pipe 41 has a spiral structure with an inlet end and an outlet end. The inlet end of the cooling pipe 41 is connected to the outlet end of the centrifugal pump 42. The cooling pipe 41 is sequentially inserted through the bottom of the bin cover 2 and the bin body 1, and is connected to the coolant storage tank 43. The spiral insertion of the cooling pipe 41 into the rice increases the contact area with the rice. Simultaneously, in conjunction with the exhaust structure 7, some air is converted into cold air, which diffuses, further increasing the heat dissipation contact area and improving heat exchange efficiency. A sealing ring 9 is provided between the cooling pipe 41 and the bin body 1 and the bin cover 2, ensuring stable installation of the cooling pipe 41 in the bin body 1 and preventing outside air from entering the bin body 1 through gaps during rice storage, thus improving the storage effect of the bin body 1.

[0032] In optional embodiments, such as Figure 3As shown, the coolant storage tank 43 has a cooling chamber 431 and a storage chamber 434. The outlet end of the cooling pipe 41 passes through and communicates with the cooling chamber 431. A cooling plate 432 is installed in the storage chamber 434, and the cooling plate 432 has multiple serpentine mounting slots 433. The outlet end of the cooling pipe 41 is installed in the serpentine mounting slots 433 for cooling. After cooling, the cooling pipe 41 flows into the storage chamber 434 for storage, circulating for continuous heat dissipation from the rice pile. Two sets of cooling structures 4 are provided, symmetrically arranged on both sides of the stirring structure 3. The two sets of cooling structures 4 increase the contact area, enabling rapid cooling of the rice. The outlet ends of the two sets of cooling pipes 41 merge into a single pipe before entering the cooling chamber 431 for cooling. To maintain the temperature of the storage chamber 434, an insulation layer, such as foam board or sponge, is provided around the periphery of the storage chamber 434. Furthermore, a fireproof layer is applied around the coolant storage tank 43.

[0033] When it is necessary to cool the rice, the stirring device is activated to agitate the rice, and the exhaust assembly is turned on to extract the air from the inside of the silo 1 to create a negative pressure state. After the cover plate 8 is opened, under the action of negative pressure, outside air enters the silo 1 from the air inlet and flows through the gaps between the rice grains. It is then extracted from the air outlet 21 by the exhaust fan 72, which increases the flow rate inside the silo 1. At the same time, the centrifugal pump 42 transports the coolant to the cooling pipe 41. The outer wall of the cooling pipe 41 contacts the rice grains for heat exchange. The coolant carries away the heat of the rice pile during the flow process. Together with the exhaust structure 7 and the stirring structure 3, the rice is cooled down quickly.

[0034] In summary, by setting up a cooling structure 4 to transport coolant into the storage chamber 1 and through the cooling pipe 41 to contact the rice, heat exchange occurs during the flow of coolant. The stirring structure 3 turns the rice over, increasing the gaps between the rice grains. Under the action of the exhaust structure 7, the cold air is diffused, increasing the contact area between the cold air and the rice, thereby achieving rapid cooling of the rice pile and keeping the rice pile under optimal storage conditions, effectively preventing the rice from becoming moldy.

[0035] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rice storage bin, characterized in that, include: A storage container assembly includes a storage container body and a storage container cover. The storage container body is used to store rice, and the storage container cover is movably connected to the opening of the storage container body. The storage container cover has a feed inlet, and the storage container body is provided with a discharge pipe. The stirring structure includes a stirring shaft and stirring blades. One end of the stirring shaft is rotatably connected to the bin cover and extends toward the inside of the bin. The stirring blades are disposed around the stirring shaft. The rotation of the stirring shaft drives the stirring blades to rotate and stir the rice. as well as, The cooling structure has one end attached to the bin cover and the other end extending toward the interior of the bin body. The cooling structure is located around the stirring structure and is used to absorb heat from the rice.

2. The rice storage silo according to claim 1, characterized in that, The cooling structure includes a cooling pipe, a centrifugal pump, and a coolant storage tank. The coolant storage tank is located on one side of the chamber and is connected to the inlet end of the centrifugal pump. The outlet end of the centrifugal pump is connected to the cooling pipe.

3. The rice storage silo according to claim 2, characterized in that, The cooling pipe has a spiral structure with an inlet end and an outlet end. The inlet end of the cooling pipe is connected to the outlet end of the centrifugal pump. The cooling pipe passes through the bottom of the cover and the body of the chamber in sequence and is connected to the coolant storage tank.

4. The rice storage silo according to claim 3, characterized in that, The coolant storage tank has a cooling chamber and a storage chamber, and the outlet end of the cooling pipe passes through the cooling chamber and communicates with the cooling chamber.

5. The rice storage silo according to any one of claims 2 to 3, characterized in that, The coolant is a propylene glycol solution.

6. The rice storage silo according to claim 2, characterized in that, A drying box is provided around the cooling pipe.

7. The rice storage silo according to claim 3, characterized in that, A sealing ring is provided between the cooling pipe and the chamber body and the chamber cover.

8. The rice storage silo according to claim 1, characterized in that, The cooling structure is provided in two sets, and is symmetrically arranged on both sides of the stirring structure.

9. The rice storage bin according to claim 1, characterized in that, The cover is provided with an air outlet, which is connected to an exhaust structure. The periphery of the compartment is provided with an air inlet, which is covered with a cover plate.

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