An automated multi-stage temperature control grain storage bin system

Abstract

The utility model discloses a kind of automated multistage temperature control grain storage warehouse systems, including storage warehouse and the temperature control warehouse located at the front end of storage warehouse;The temperature control warehouse includes transfer room, sampling detection room and nitrogen filling and nitrogen supplement room arranged in sequence;Transfer room, sampling detection room and nitrogen filling and nitrogen supplement room are equipped with a transmission line mechanism in it and storage warehouse is communicated, to be used for the grain storage box that is transported into transfer room from outside is transferred into storage warehouse after being operated by transmission line mechanism in sequence through sampling detection room, nitrogen filling and nitrogen supplement room;Transfer room, sampling detection room and nitrogen filling and nitrogen supplement room are all equipped with temperature regulating device for forming multistage temperature control room to carry out multiple temperature regulation to the grain storage box of transmission.The utility model has the advantages of simple structure, high degree of automation, multiple process operations can be carried out during transfer process, grain storage container has small influence on storage warehouse environment and high degree of intellectualization, and operation efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of grain storage equipment technology, specifically to an automated multi-level temperature-controlled grain storage warehouse system. Background Technology

[0002] Grain reserves are of great significance for ensuring food security, responding to risks, and protecting people's livelihoods. Traditional warehouse grain storage and handling are inefficient; currently, containerized grain storage is widely used. Containerized grain storage and transportation offers several advantages: first, it suits the needs of transporting various varieties of grain in small batches, as well as grains of different qualities and grades; second, it eliminates the need for dedicated bulk grain distribution facilities, allowing full use of general-purpose container handling equipment and reducing basic construction investment; and third, the use of mechanized operations reduces labor intensity, environmental pollution, and overall transportation costs. Grain transport vehicles can be either unmanned automated vehicles or existing conventional manually driven vehicles. These vehicles are equipped with grain containers for transporting, dispatching, and transferring grain.

[0003] Existing technologies have established centralized containerized grain storage silos, which are used for centralized storage, processing, repackaging, and other operations of grain. However, these silos have strict controls on environmental temperature, hygiene, and environmental protection (for example, in hot weather, they are stored at a constant temperature, ensuring that the internal temperature is significantly lower than the external temperature). This means that after external vehicles transport containers loaded with grain to the silos, the containers need to be lifted and transferred again into the silos for storage, processing, repackaging, and other operations.

[0004] Due to the temperature difference between the outdoor environment and the containerized grain storage, the opening of the extremely large containerized grain storage doors during grain transfer inevitably leads to rapid temperature loss. Especially in extremely hot weather, grain containers transported outdoors for long distances absorb heat and reach very high temperatures under direct sunlight. Even after being stored inside the container, they continue to generate heat, which is not only detrimental to the storage of the grain inside but also lowers the temperature inside the containerized grain storage, affecting the storage of other grains. Furthermore, before storage, the grain needs to be sampled and tested, and the container needs to be filled with nitrogen. How to connect these operations into an efficient and intelligent workflow is also a problem that urgently needs to be solved. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automated multi-level temperature-controlled grain storage system with a simple and compact structure, a high degree of automation, the ability to perform multiple processes during the transfer process, minimal impact of grain storage containers on the grain storage environment, and high intelligence and operating efficiency.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An automated multi-stage temperature-controlled grain storage system includes a storage warehouse and a temperature-controlled warehouse located at the front end of the storage warehouse. The temperature-controlled warehouse includes a transfer chamber, a sampling and testing chamber, and a nitrogen filling and replenishment chamber arranged sequentially. A transmission line mechanism connected to the storage warehouse is provided in the transfer chamber, the sampling and testing chamber, and the nitrogen filling and replenishment chamber, for transporting grain boxes from the outside into the transfer chamber through the transmission line mechanism, passing through the sampling and testing chamber and the nitrogen filling and replenishment chamber sequentially, before being transferred into the storage warehouse for storage. Temperature regulation devices are provided in the transfer chamber, the sampling and testing chamber, and the nitrogen filling and replenishment chamber to form a multi-stage temperature-controlled chamber for multiple temperature adjustments to the transported grain boxes.

[0007] As a further improvement to the above technical solution: The walls of the transfer room, sampling and testing room, and nitrogen filling and replenishment room are all equipped with openable and closable sealed door mechanisms at the passage of the transmission line mechanism, so that the grain storage boxes being transported can pass through when opened. The entrance connecting the transfer room to the outside is also equipped with a sealed door mechanism.

[0008] The transfer chamber is equipped with a first gantry crane mechanism for lifting grain storage boxes brought in from the outside to the transmission line mechanism.

[0009] The storage silo is equipped with one or more second gantry crane mechanisms for hoisting and stacking grain bins transported by the transmission line mechanism within the storage silo.

[0010] The transmission line mechanism includes a transmission frame, a drive motor, and a heavy-duty roller transmission line. The heavy-duty roller transmission line is arranged along the length of the transmission frame to support the grain storage box. The drive motor is mounted on the transmission frame to drive the heavy-duty roller transmission line for transmission.

[0011] The heavy-duty roller conveyor line includes a drive chain and multiple rollers. Both ends of each roller are rotatably mounted on the conveyor frame via bearings. One end of each roller is provided with a drive gear. The drive shaft of the drive motor is provided with a drive gear. The drive chain is wound between the drive gear and the multiple drive gears.

[0012] The temperature-controlled chamber includes multiple parallel rows of transfer chambers, sampling and testing chambers, and nitrogen filling and replenishment chambers; each of these chambers is equipped with a transmission line mechanism that connects to the storage chamber.

[0013] Each of the sealing door mechanisms is equipped with an air curtain machine, which is used to generate a high-speed airflow to reduce air exchange when the sealing door mechanism is opened.

[0014] The transfer chamber is equipped with an ultraviolet disinfection device at the top of the transmission line mechanism to disinfect the grain storage boxes with ultraviolet light before transmission.

[0015] The transmission line mechanism is equipped with a lifting baffle mechanism at its end.

[0016] Compared with the prior art, the advantages of this utility model are: Firstly, the system is equipped with a transfer room, a sampling and testing room, and a nitrogen filling and replenishment room arranged in sequence. Each of these rooms is connected to a transmission line mechanism that connects to the storage silo. This allows the grain containers transported from outside to be transferred, sampled, tested, and then filled with nitrogen in a straight line, completing the entire process in one go. This results in a high degree of automation and high work efficiency.

[0017] Secondly, multi-stage temperature control is achieved by installing temperature regulation devices in the transfer room, sampling and testing room, and nitrogen filling and replenishment room, efficiently regulating the temperature of the storage containers. For example, in hot weather, the grain storage containers transported from the outside absorb heat and reach extremely high temperatures. After being cooled multiple times in the transfer room, sampling and testing room, and nitrogen filling and replenishment room, the grain does not continuously generate heat after entering the storage silo, thus not affecting the temperature and storage conditions within the silo. The temperature of the grain storage containers is regulated simultaneously with unloading, transfer, sampling and testing, and nitrogen filling and replenishment operations, greatly improving operational efficiency and temperature control effectiveness.

[0018] Third, through multi-level stepped temperature control settings, each compartment used for temperature regulation and cooling is set independently, which makes the temperature maintenance effect good, reduces the loss of cold air when the grain storage box enters, has a good cooling effect, saves energy, and is green and environmentally friendly.

[0019] Fourth, by setting up a sealed door mechanism, the transfer chamber, sampling and testing chamber and nitrogen filling and replenishment chamber are kept in a sealed and independent space, which prevents the loss of cold air and greatly improves energy utilization.

[0020] Fifth, by setting up a first gantry crane mechanism to lift the grain storage boxes from external transport vehicles onto the transmission line mechanism, the grain storage boxes are automatically transported in the temperature-controlled warehouse and storage warehouse, which greatly improves the transport efficiency and avoids external devices from causing pollution to the storage warehouse.

[0021] Sixth, by setting up a second gantry crane mechanism, the grain storage boxes transmitted by the transmission line mechanism are hoisted and stacked in the storage warehouse, which greatly improves the space utilization of the storage warehouse and facilitates intelligent management.

[0022] Seventh, by setting up a transmission frame, drive motor and heavy-duty roller transmission line, the grain storage boxes carried on the heavy-duty roller transmission line are transported along the length of the transmission frame, which greatly improves the conveying efficiency and stability. Compared with other transmission methods, it is more suitable for the efficient and safe transmission of large-sized and heavy grain storage boxes.

[0023] Eighth, by setting up a transmission chain and multiple rollers, the heavy-duty roller transmission line has strong power and high synchronization. The chain drive avoids slippage, ensuring efficient and stable operation under heavy-duty conditions. At the same time, the structure is sturdy and durable, and the maintenance cost is low.

[0024] Ninth, by setting up multiple transfer chambers, sampling and testing chambers, and nitrogen filling and replenishment chambers in parallel rows in the temperature-controlled warehouse, multiple external transport vehicles can simultaneously transport grain storage boxes to each transfer chamber, enabling multiple transport lines to transport simultaneously, and multiple transfer chambers, sampling and testing chambers, and nitrogen filling and replenishment chambers to operate synchronously, resulting in a more reasonable layout, higher work efficiency, and stronger processing capacity.

[0025] Tenth, by installing an air curtain machine at the sealing door mechanism to generate high-speed airflow, air exchange is reduced, resulting in good temperature control, energy saving, and environmental friendliness. Attached Figure Description

[0026] Figure 1 This is a schematic diagram illustrating the structural principle of the automated multi-stage temperature-controlled grain storage system of this utility model.

[0027] Figure 2 This is a schematic diagram illustrating the structural principle of the grain storage box of this utility model being transferred within the transfer chamber.

[0028] Figure 3 This is a schematic diagram of the conveying process of a single grain storage box in a temperature-controlled warehouse according to this utility model.

[0029] The labels in the diagram represent: 1. Storage bin; 2. Temperature-controlled bin; 21. Transfer room; 22. Sampling and testing room; 23. Nitrogen filling and replenishment room; 3. Transmission line mechanism; 31. Transmission frame; 32. Drive motor; 33. Heavy-duty roller transmission line; 4. Grain storage bin; 5. Sealing door mechanism; 6. First gantry crane mechanism; 7. Second gantry crane mechanism; 8. Temperature regulation device. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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, they should not be construed as limitations on this application.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] like Figures 1 to 3 As shown, the automated multi-level temperature-controlled grain storage system of this embodiment includes a storage chamber 1 and a temperature-controlled chamber 2 located at the front end of the storage chamber 1. The temperature-controlled chamber 2 includes a transfer chamber 21, a sampling and testing chamber 22, and a nitrogen filling and replenishment chamber 23 arranged in sequence. A transmission line mechanism 3 connected to the storage chamber 1 is provided in the transfer chamber 21, the sampling and testing chamber 22, and the nitrogen filling and replenishment chamber 23 to transport grain boxes 4 from the outside into the transfer chamber 21 through the transmission line mechanism 3, passing through the sampling and testing chamber 22 and the nitrogen filling and replenishment chamber 23 in sequence before being transported into the storage chamber 1 for storage. Temperature regulation devices 8 (such as industrial air conditioners) are provided in the transfer chamber 21, the sampling and testing chamber 22, and the nitrogen filling and replenishment chamber 23 to form a multi-level temperature-controlled chamber for multiple temperature regulation of the transported grain boxes 4.

[0035] The specific working principle is as follows: First, the grain storage box 4 is transported from an external transport vehicle to the transfer chamber 21 of the temperature-controlled warehouse 2 via external transport equipment. Then, the grain storage box 4 is transported within the transfer chamber 21 to the conveyor line mechanism 3 (e.g., ...). Figure 2 As shown, the arrows indicate the transport direction of the grain storage box 4. The grain storage box 4 is sequentially transported to the sampling and testing chamber 22 and the nitrogen filling and replenishment chamber 23 via the transmission line mechanism 3 for sampling, testing, and nitrogen filling and replenishment. Afterward, the grain storage box 4 is transferred into the storage silo 1 for storage (e.g., ...). Figure 3 As shown, the grain storage box 4 enters the storage chamber 1 in the direction of the arrow, and is then lifted and moved back and forth and left and right by the second gantry crane mechanism 7 inside the storage chamber 1 for placement. At the same time, the temperature regulating devices 8 in the transfer chamber 21, the sampling and testing chamber 22, and the nitrogen filling and replenishment chamber 23 adjust the temperature of the grain storage box 4 multiple times.

[0036] Through the above-mentioned special design, this automated multi-stage temperature-controlled grain storage system has the following advantages: 1. The transfer chamber 21, sampling and testing chamber 22 and nitrogen filling and replenishment chamber 23 are arranged in sequence. The transfer chamber 21, sampling and testing chamber 22 and nitrogen filling and replenishment chamber 23 are equipped with a transmission line mechanism 3 connected to the storage silo 1. This allows the grain storage box 4 transported from outside to be transferred in a straight line from unloading to sampling and testing to nitrogen filling and replenishment. The operation is completed in one go, with a high degree of automation and high work efficiency.

[0037] Second, by installing temperature regulating devices 8 in the transfer chamber 21, sampling and testing chamber 22, and nitrogen filling and replenishment chamber 23, multi-level stepped temperature control is achieved, efficiently regulating the temperature of the storage box. Taking hot weather as an example, the storage box 4, transported from the outside, absorbs heat and becomes extremely hot. After being cooled multiple times in the transfer chamber 21, sampling and testing chamber 22, and nitrogen filling and replenishment chamber 23, it will not generate continuous heat dissipation after entering the storage chamber 1, thus not affecting the temperature and storage conditions within the storage chamber 1. The temperature of the storage box 4 is regulated simultaneously with unloading, transfer, sampling and testing, and nitrogen filling and replenishment operations, greatly improving operational efficiency and temperature control effectiveness.

[0038] Third, through multi-level stepped temperature control settings, each compartment used for temperature regulation and cooling is set independently, which makes the temperature maintenance effect good, reduces the loss of cold air when the grain storage box 4 enters, has a good cooling effect, saves energy, and is green and environmentally friendly.

[0039] like Figure 1 and Figure 3 As shown, in this embodiment, the walls of the transfer chamber 21, sampling and testing chamber 22, and nitrogen filling and replenishment chamber 23 are all equipped with openable and closable sealing door mechanisms 5 at the passage points of the transmission line mechanism 3, for the grain storage box 4 to pass through when opened. A sealing door mechanism 5 is also provided at the entrance of the transfer chamber 21 connecting to the outside. In this embodiment, the sealing door mechanism 5 adopts an existing roller shutter-type lifting door; however, other sealing door structures can be used in other embodiments. When no grain storage box 4 is being transferred, or when the grain storage box 4 is not being transferred and is operating in the work chamber, the roller shutter-type lifting door falls down, keeping the transfer chamber 21, sampling and testing chamber 22, and nitrogen filling and replenishment chamber 23 spatially sealed and independent, preventing the loss of cold air. Only when the grain storage box 4 is being transferred does the roller shutter-type lifting door roll up and open to form a transmission channel, facilitating the passage of the grain storage box 4. Alternatively, the roller shutter-type lifting door at the entrance of the transfer chamber 21 opens only after the grain storage box 4 in the transfer chamber 21 has been transferred, facilitating the exit of external transport vehicles.

[0040] like Figures 1 to 3As shown, in this embodiment, a first gantry crane mechanism 6 is provided inside the transfer chamber 21 to lift the grain storage boxes 4 transported from the outside into the transfer chamber 21 onto the transmission line mechanism 3. In this embodiment, the first gantry crane mechanism 6 adopts a hydraulic gantry crane of existing technology, which consists of a hydraulic lifting device (main unit), rails, crossbeams, hooks, high-pressure oil pipes, hydraulic control station, etc., with a lifting capacity of up to 1000 tons. It is easy to move, has excellent safety performance, and fast assembly and disassembly speed. It is particularly suitable for construction in low-ceilinged factory buildings and places with limited lifting space, and is used for lifting various large equipment such as presses and punch presses. By setting up the first gantry crane mechanism 6 to lift the grain storage boxes 4 from external transport vehicles onto the transmission line mechanism 3, the automated transportation of the grain storage boxes 4 in the temperature-controlled warehouse 2 and the storage warehouse 1 is facilitated, greatly improving the transportation efficiency and avoiding contamination of the storage warehouse 1 by external devices.

[0041] like Figure 1 and Figure 3 As shown, in this embodiment, the storage silo 1 is equipped with one or more second gantry crane mechanisms 7 for hoisting and stacking the grain boxes 4 transmitted by the transmission line mechanism 3 within the storage silo 1. In this embodiment, the second gantry crane mechanism 7 adopts a container gantry crane. Container gantry cranes have a double main beam structure, which is more stable and has better rigidity; and they use hydraulic oil transmission, which provides more power transmission; the cylinders can extend and retract, and are unaffected by extreme conditions such as power outages and oil leaks, ensuring high braking safety. By setting up the second gantry crane mechanism 7 to hoist and stack the grain boxes 4 transmitted by the transmission line mechanism 3 within the storage silo 1, the space utilization rate of the storage silo 1 is greatly improved, facilitating intelligent management.

[0042] like Figure 1 and Figure 3 As shown, in this embodiment, the transmission line mechanism 3 includes a transmission frame 31, a drive motor 32, and a heavy-duty roller transmission line 33. The heavy-duty roller transmission line 33 is arranged along the length of the transmission frame 31 to carry the grain storage box 4. The drive motor 32 is mounted on the transmission frame 31 to drive the heavy-duty roller transmission line 33 for transmission. In use, the drive motor 32 drives the heavy-duty roller transmission line 33 to rotate, so that the grain storage box 4 carried on the heavy-duty roller transmission line 33 is transported along the length of the transmission frame 31, which greatly improves the conveying efficiency and conveying stability. Compared with other transmission methods, it is more suitable for the efficient and safe transmission of large-sized and heavy-weight grain storage boxes 4.

[0043] like Figure 1 and Figure 3As shown, in this embodiment, the heavy-duty roller conveyor line 33 includes a drive chain and multiple rollers (not shown in the figure). Each roller is rotatably mounted on the conveyor frame 31 at both ends via bearings. Each roller has a drive gear at one end, and the drive shaft of the drive motor 32 has a drive gear. The drive chain winds between the drive gear and the multiple drive gears. In use, the drive motor 32 is started, causing the drive gear to rotate, which in turn engages the drive chain for cyclical motion. The chain then synchronously drives the drive gears at the ends of all rollers, ultimately causing the multiple rollers to rotate at a uniform speed in the same direction, using friction to propel the grain storage box 4 above them to move smoothly. This heavy-duty roller conveyor line 33 is powerful, highly synchronized, and the chain drive avoids slippage, ensuring efficient and stable operation under heavy load conditions. It also has a robust and durable structure with low maintenance costs.

[0044] like Figure 1 and Figure 3 As shown, in this embodiment, the temperature-controlled warehouse 2 includes multiple parallel rows of transfer chambers 21, sampling and testing chambers 22, and nitrogen filling and replenishment chambers 23. Each row of transfer chambers 21, sampling and testing chambers 22, and nitrogen filling and replenishment chambers 23 is equipped with a transmission line mechanism 3 connected to the storage warehouse 1. By arranging multiple parallel rows of transfer chambers 21, sampling and testing chambers 22, and nitrogen filling and replenishment chambers 23 in the temperature-controlled warehouse 2, multiple external transport vehicles can simultaneously transport grain boxes 4 to each row of transfer chambers 21, allowing multiple transport line mechanisms to transport simultaneously. Multiple transfer chambers 21, sampling and testing chambers 22, and nitrogen filling and replenishment chambers 23 can operate synchronously, resulting in a more reasonable layout, higher work efficiency, and stronger processing capacity.

[0045] In this embodiment, each of the sealing door mechanisms 5 is equipped with an air curtain machine (not shown in the figure), which is used to generate a high-speed airflow to reduce air exchange when the sealing door mechanism 5 is opened. By setting up air curtain machines to reduce air exchange when the grain storage box 4 enters and exits, the temperature in each chamber is kept stable, the temperature control effect is good, and energy is saved, which is green and environmentally friendly.

[0046] In this embodiment, an ultraviolet disinfection device is installed at the top of the transmission line mechanism 3 inside the transfer chamber 21 to disinfect the grain storage box 4 with ultraviolet light before transmission. By setting up an ultraviolet disinfection device to disinfect vehicles and grain storage boxes 4 entering the transfer chamber 21 from the outside, contamination of the sampling and testing chamber 22, nitrogen filling and replenishment chamber 23, and storage silo 1 is further avoided.

[0047] In this embodiment, a lifting baffle mechanism is provided at the end of the transmission line mechanism 3. By setting the lifting baffle mechanism, the grain storage box 4 on the transmission line mechanism 3 is prevented from falling off the transmission line mechanism 3 due to inertia, thereby further improving the reliability of the system.

[0048] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. An automated multi-stage temperature-controlled grain storage system, characterized in that: It includes a storage chamber (1) and a temperature-controlled chamber (2) located at the front end of the storage chamber (1); the temperature-controlled chamber (2) includes a transfer chamber (21), a sampling and testing chamber (22) and a nitrogen filling and replenishment chamber (23) arranged in sequence; the transfer chamber (21), the sampling and testing chamber (22) and the nitrogen filling and replenishment chamber (23) are provided with a transmission line mechanism (3) connected to the storage chamber (1) so that the grain box (4) transported from the outside into the transfer chamber (21) is transported into the storage chamber (1) through the transmission line mechanism (3) in sequence through the sampling and testing chamber (22) and the nitrogen filling and replenishment chamber (23) for storage; the transfer chamber (21), the sampling and testing chamber (22) and the nitrogen filling and replenishment chamber (23) are all provided with temperature adjustment devices (8) to form a multi-level temperature control chamber to adjust the temperature of the transported grain box (4) multiple times.

2. The automated multi-level temperature-controlled grain storage system according to claim 1, characterized in that: The walls of the transfer chamber (21), sampling and testing chamber (22) and nitrogen filling and supplementation chamber (23) are all equipped with openable and closable sealed door mechanisms (5) at the passage of the transmission line mechanism (3) so that the grain storage box (4) being transported can pass through when opened. The entrance of the transfer chamber (21) connecting to the outside is also equipped with a sealed door mechanism (5).

3. The automated multi-level temperature-controlled grain storage system according to claim 1, characterized in that: The transfer chamber (21) is equipped with a first gantry crane mechanism (6) for lifting grain storage boxes (4) that are transported from the outside into the transfer chamber (21) onto the transmission line mechanism (3).

4. The automated multi-level temperature-controlled grain storage system according to claim 1, characterized in that: The storage bin (1) is provided with one or more second gantry crane mechanisms (7) for hoisting and stacking the grain bins (4) transmitted by the transmission line mechanism (3) in the storage bin (1).

5. The automated multi-level temperature-controlled grain storage system according to claim 1, characterized in that: The transmission line mechanism (3) includes a transmission frame (31), a drive motor (32) and a heavy-duty roller transmission line (33). The heavy-duty roller transmission line (33) is arranged along the length of the transmission frame (31) to carry the grain storage box (4). The drive motor (32) is mounted on the transmission frame (31) to drive the heavy-duty roller transmission line (33) to transmit.

6. The automated multi-level temperature-controlled grain storage system according to claim 5, characterized in that: The heavy-duty roller conveyor line (33) includes a transmission chain and multiple rollers. Both ends of each roller are rotatably mounted on the transmission frame (31) via bearings. One end of each roller is provided with a transmission gear. The drive shaft end of the drive motor (32) is provided with a drive gear. The transmission chain is wound between the drive gear and multiple transmission gears.

7. The automated multi-level temperature-controlled grain storage system according to claim 1, characterized in that: The temperature-controlled chamber (2) includes multiple parallel rows of transfer chambers (21), sampling and testing chambers (22) and nitrogen filling and replenishment chambers (23); each of the transfer chambers (21), sampling and testing chambers (22) and nitrogen filling and replenishment chambers (23) is equipped with a transmission line mechanism (3) that is connected to the storage chamber (1).

8. The automated multi-level temperature-controlled grain storage system according to claim 2, characterized in that: Each of the sealing door mechanisms (5) is equipped with an air curtain machine, which is used to generate a high-speed airflow to reduce air exchange when the sealing door mechanism (5) is opened.

9. The automated multi-stage temperature-controlled grain storage system according to any one of claims 1 to 8, characterized in that: The transfer chamber (21) is equipped with an ultraviolet disinfection device on the top of the transmission line mechanism (3) for disinfecting the grain storage box (4) with ultraviolet light before transmission.

10. The automated multi-stage temperature-controlled grain storage system according to any one of claims 1 to 8, characterized in that: The transmission line mechanism (3) is provided with a lifting baffle mechanism at its end.

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