An integrated green grain storage system with interconnected zones

Through the integrated green grain storage system that is connected in partitions, solar photovoltaic panels and earthworm channels are used to pre-evaporate and dry grains and constant temperature control, the problem of hot and moldy grains in the granary is solved, and the temperature-friendly storage and quality-saving storage of grains and green energy saving are achieved.

CN116177093BActive Publication Date: 2025-08-12XI AN JIAOTONG UNIV
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202310239284.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-03-13
Publication Date
2025-08-12
Estimated Expiration
2043-03-13

AI Technical Summary

Technical Problem

The existing granaries have problems such as heat, mold, uneven ventilation, and dust pollution when storing grain, resulting in loss of grain quality and output. The existing green energy-saving storage system has high cost and poor effect.

Method used

The integrated green grain storage system is adopted with a partitioned integrated area, including a evaporation and drying ware, storage ware and earthworm channels, and pre-evaporation and drying of grain, constant temperature control and soil energy regulation are used to achieve intelligent management by combining generators and sensors.

Benefits of technology

It realizes the temperature-friendly and quality storage of grain, reduces energy consumption, avoids grain losses, and realizes green energy-saving and intelligent management.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116177093B_ABST
    Figure CN116177093B_ABST
Patent Text Reader

Abstract

The present invention belongs to the technical field of grain storage, and relates to an integrated green grain storage system with partitioned and connected sections, comprising: a steam-drying bin, a storage bin, and an earthworm tunnel. The steam-drying bin is used to heat and evaporate excess moisture in newly-stored grain, the storage bin is used to store the stored grain dried in the steam-drying bin for a long time, and the earthworm tunnel is used to regulate the temperature of the grain in the storage bin. The present invention uses the steam-drying bin to perform pre-steaming treatment on the grain when it enters the bin, and then transfers the dried grain to the storage bin to perform phase change constant temperature control treatment on the grain. The earthworm tunnel buried underground fully utilizes soil energy and phase change latent heat to achieve the purpose of temperature-appropriate quality preservation storage and green energy-saving grain storage in the granary, thereby realizing green energy storage, intelligent management and avoiding losses caused by the grain storage period.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of grain storage, and relates to an integrated green grain storage system with partitions and through-connections. Background Art

[0002] Grains, whether corn, wheat, or rice, contain a certain percentage of moisture after harvest. Newly harvested grains are sensitive to heat, condensation, mold, and sprouting after storage. Failure to address these issues promptly can lead to significant losses. Therefore, grains must be repeatedly aired before storage to reduce moisture content to below the required level. Regular ventilation is also essential after storage to prevent mold.

[0003] The existing granaries are filled with grain at a high height, which causes the grain stored inside to heat up and mold. In order to ensure its quality and flavor, a large amount of manpower and material resources are required, which will continuously increase the cost of storing grain, resulting in waste and economic losses.

[0004] However, existing green and energy-saving grain storage systems still have many shortcomings. For example, underground granaries are huge and costly to build, and they have poor moisture-proofing. Flat-bed granaries, due to the excessively high grain load inside, can cause the grain to mold. Furthermore, the refrigeration and ventilation equipment installed in the granaries creates uneven temperature distribution due to the accumulation of grain, which easily causes the grain to lose moisture, reducing yield and taste. Many existing outdoor granaries experience poor ventilation during bad weather, which increases humidity inside the granaries and the likelihood of corn mold. Furthermore, external dust and impurities easily enter the granaries, contaminating the stored grain. In rural underground granaries, mold is a common problem due to the lack of ventilation. In summary, existing granaries cannot meet current needs, and there is an urgent need to develop green, energy-saving, and quality-preserving granaries and grain storage systems to address these issues. Summary of the Invention

[0005] The technical solution adopted by the present invention to solve the technical problem is: an integrated green grain storage system with partitioned and connected parts, including: a steam drying bin, a storage bin, and an earthworm tunnel. The steam drying bin is used to heat and evaporate excess moisture in the newly stored grain, the storage bin is used to store the grain dried in the steam drying bin for a long time, and the earthworm tunnel is used to adjust the temperature of the grain in the storage bin. The steam drying bin, the storage bin, and the earthworm tunnel are arranged in order from top to bottom, and the earthworm tunnel is located in the soil below the ground. The upper part of the steam drying bin is provided with a steam drying bin grain inlet, and the lower part of the steam drying bin is provided with a steam drying bin grain outlet. The upper part of the storage bin is provided with a storage bin grain inlet, and the lower part of the storage bin is provided with a storage bin grain outlet. The bottom of the storage bin is also divided into A circulating grain outlet and a circulating grain inlet are separately provided. The earthworm tunnel is a spiral tubular heat conduction pipe. The outer wall of the earthworm tunnel directly contacts the underground soil for heat conduction. The earthworm tunnel is a power pipe. The grain outlet of the steam-drying bin is connected to the grain inlet of the storage bin. The circulating grain outlet and the circulating grain inlet are respectively connected to the two ends of the earthworm tunnel. The grain inlet of the steam-drying bin is used for inputting grain into the grain storage system, and the grain outlet of the storage bin is used for outputting grain from the grain storage system. The grain storage system is divided into three parts. The steam-drying bin pre-dry-processes the incoming grain first. The storage bin can store grain for a long time. The earthworm tunnel circulates the grain in the storage bin, making full use of soil energy and phase change latent heat to achieve suitable temperature and quality storage of the grain in the storage bin.

[0006] A solar photovoltaic panel is provided on the top of the steam drying bin. The top, side walls and bottom of the steam drying bin are all multi-layer structures. The multi-layer structure is sequentially composed of an outer partition layer of the steam drying bin, a building layer, an inner partition layer of the steam drying bin and a heat conduction layer from the outside to the inside. The outer capillary tube disks are evenly distributed in the outer partition layer of the steam drying bin at the bottom of the solar photovoltaic panel, and the inner capillary tube disks are evenly distributed in the heat conduction layer. A grain steaming channel is provided in the steam drying bin, and the two ends of the grain steaming channel are respectively connected to the grain inlet and the grain outlet of the steam drying bin. The channel walls of the grain steaming channel are evenly distributed with channel capillary tube disks, and the channel walls of the grain steaming channel are filled with thermal silicone grease. The outer capillary tube disks are connected to the inner capillary tube disks and the channel capillary tube disks, and the internal heat conduction fluid circulates.

[0007] The outer partition of the steam-drying bin, the inner partition of the steam-drying bin, and the grain steaming channel are all made of metal foam, and the heat-conducting layer is made of thermal silicone grease; the grain storage system is equipped with a voltage-stabilizing circuit and a battery pack, and the solar photovoltaic panel is electrically connected to the battery pack through the voltage-stabilizing circuit; the solar photovoltaic panel can not only generate electricity for use in the grain storage system, but also utilize the heat dissipation of photovoltaic power generation, the ventilation and heat dissipation of metal foam, and the thermal conductivity of the capillary network to use the heat dissipated by photovoltaic power generation to evaporate excess moisture in the grain, thereby reducing the energy consumption of steaming and drying the grain.

[0008] Preferably, the inner side wall of the storage bin is provided with an inner partition of the grain storage bin, which is made of metal foam, and the grain storage bin capillaries are evenly distributed in the layer of the inner partition of the grain storage bin. The grain storage bin capillaries are connected to the heat pump through the cold water main pipe, and the heat pump is electrically connected to the power supply and the battery pack; the grain storage bin capillaries can adjust the temperature environment in the storage bin, thereby ensuring the quality of long-term storage of grain in the grain storage bin.

[0009] More preferably, the cold water main pipe is further provided with a solenoid valve.

[0010] More preferably, the storage bin is equipped with a dehumidifier, a nitrogen generator, a temperature sensor, a humidity sensor, a nitrogen sensor, and a control and processing module, and the control and processing module is electrically connected to the dehumidifier, nitrogen generator, temperature sensor, humidity sensor, nitrogen sensor, and heat pump, respectively; the temperature and humidity in the storage bin are monitored in real time, and nitrogen is replenished to ensure that the storage bin achieves the optimal environmental conditions for long-term storage of grain.

[0011] More preferably, the heat pump water channel is connected to the inner capillary tube disc and the channel capillary tube disc, and the heat pump is connected to the evaporation and drying bin and the storage bin. When it is hot in summer, the storage bin is cooled to improve the grain storage environment. When it is cold in winter, the evaporation and drying bin is heated to ensure the evaporation efficiency of the evaporation and drying bin.

[0012] Preferably, the storage bin is divided into layers from top to bottom, with a partition floor between each adjacent layer, and a grain outlet on the partition floor; multi-layer separation to store grain can reduce the pressure and temperature inside the stored grain, and reduce the deterioration and mold of grain caused by high storage pressure and increased temperature.

[0013] Preferably, a generator is also provided in the storage bin, which is installed at the passage through which grain passes from top to bottom and is electrically connected to a battery pack; the potential energy of the falling grain is converted into electrical energy by the generator and stored and recycled, thereby reducing the energy consumption of the grain storage system.

[0014] Preferably, the storage bin is further provided with a circulation pipe, the two ends of which are respectively connected to the grain inlet of the steam drying bin and the grain outlet of the storage bin, and the circulation pipe is a power pipe; the circulation pipe can circulate the grain in the storage bin back to the steam drying bin to prevent the problem of increased moisture in the grain in the storage bin causing mold and deterioration due to excessive moisture in the grain, insufficient steam drying time, moisture during storage, etc.

[0015] Preferably, the grain steaming channels are provided with 1 to 10 channels, and multiple grain steaming channels can improve the steaming efficiency of the steam-drying bin.

[0016] Preferably, the grain steaming channel is a spiral from top to bottom from the grain steaming and drying bin inlet to the grain steaming and drying bin outlet; the gradually descending spiral shape can extend the length of the grain steaming channel, and at the same time, the grain can roll when rotating in the spiral channel, thereby causing the grain in the center and edge of the channel to circulate inside and outside, which is more conducive to steaming the grain and discharging moisture in time.

[0017] The beneficial effects of the present invention are:

[0018] 1. The present invention uses a steam drying bin to pre-dry the grain before it enters the warehouse, and then transfers the steamed grain to a storage bin to perform phase change constant temperature control on the grain. The earthworm tunnels buried underground fully utilize soil energy and phase change latent heat to achieve the purpose of temperature-appropriate quality storage and green energy-saving grain storage in the granary, thereby realizing green energy storage, intelligent management and avoiding losses caused by grain storage.

[0019] 2. The present invention sets a solar photovoltaic panel on the top of the steam drying bin, uses solar energy to generate electricity for the grain storage system, and recycles the waste heat of the solar panel and the heat after the grain is steamed. By arranging temperature sensors, humidity sensors and nitrogen sensors, the control and processing module uses the information transmitted by the sensors to control the electromagnetic water valve, grain input and output linkage, thereby realizing green energy storage and intelligent management.

[0020] 3. The present invention sets a generator at the grain outlet in the storage bin, and converts the potential energy of the falling grain into electrical energy through the generator, which is stored and recycled, thereby reducing the energy consumption of the grain storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of an integrated green grain storage system with partitions running through it;

[0022] Figure 2 It is a stereogram;

[0023] Figure 3 This is a cross-sectional view of the evaporation chamber;

[0024] Figure 4 This is a front sectional view of the top wall of the steam drying bin;

[0025] Figure 5 This is a top-down cross-sectional view of the storage bin wall.

[0026] Among them, 1. Steam drying chamber; 2. Storage chamber; 3. Earthworm tunnel; 4. Steam drying chamber grain inlet; 5. Steam drying chamber grain outlet; 6. Storage chamber grain inlet; 7. Storage chamber grain outlet; 8. Circulation grain outlet; 9. Circulation grain inlet; 10. Solar photovoltaic panel; 11. Steam drying chamber outer layer; 12. Building layer; 13. Steam drying chamber inner layer; 14. Heat transfer layer; 15. Outer capillary tube disk; 16. Inner capillary tube disk; 17. Steaming passage; 18. Channel capillary plate; 19. Voltage stabilizing circuit; 20. Battery pack; 21. Inner partition of grain storage silo; 22. Capillary tube of grain storage silo; 23. Cold water main pipe; 24. Heat pump; 25. Solenoid valve; 26. Partition floor; 27. Dehumidifier; 28. Nitrogen generator; 29. Temperature sensor; 30. Humidity sensor; 31. Nitrogen sensor; 32. Control and processing module; 33. Generator; 34. Circulation pipe. DETAILED DESCRIPTION

[0027] The following will provide a clear and complete description of the relevant technologies in the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] refer to Figures 1 to 5 , an integrated green grain storage system with partitioned and connected parts, including: a steam drying bin 1, a storage bin 2, and an earthworm tunnel 3. The steam drying bin 1 is used to heat and evaporate the excess moisture in the newly stored grain, and the storage bin 2 is used to store the grain dried in the steam drying bin 1 for a long time. The earthworm tunnel 3 is used to adjust the temperature of the grain in the storage bin 2. The steam drying bin 1, the storage bin 2, and the earthworm tunnel 3 are arranged in order from top to bottom. The earthworm tunnel 3 is located in the soil below the ground. The upper part of the steam drying bin 1 is provided with a steam drying bin grain inlet 4, and the lower part of the steam drying bin 1 is provided with a steam drying bin grain outlet 5. The upper part of the storage bin 2 is provided with a storage bin grain inlet 6, and the lower part of the storage bin 2 is provided with a storage bin outlet 7. The bottom of the storage bin 2 is also provided with a circulating grain outlet 8 and a circulating grain inlet 9. The earthworm tunnel 3 is a spiral tubular heat conduction tube. The outer wall of the earthworm tunnel 3 directly contacts the underground soil through heat conduction. The earthworm tunnel 3 is a power tube. The grain in the tube is driven by external power to flow along the tube. The grain outlet 5 of the steam drying bin is connected to the grain inlet 6 of the storage bin. The circulating grain outlet 8 and the circulating grain inlet 9 are respectively connected to the two ends of the earthworm tunnel 3. The grain inlet 4 of the steam drying bin is used for inputting grain into the grain storage system, and the grain outlet 7 of the storage bin is used for outputting grain from the grain storage system. The grain storage system is divided into three parts. The steam drying bin 1 pre-dry the incoming grain. The storage bin 2 can store grain for a long time. The earthworm tunnel 3 circulates the grain in the storage bin 2 back and forth, making full use of soil energy and phase change latent heat to achieve suitable temperature and quality storage of the grain in the storage bin 2.

[0029] A solar photovoltaic panel 10 is provided on the top of the steam drying bin 1. The top, side walls and bottom of the steam drying bin 1 are all multi-layer structures. The multi-layer structure is sequentially composed of a steam drying bin outer partition 11, a building layer 12, a steam drying bin inner partition 13 and a heat conducting layer 14 from the outside to the inside. The outer capillary tube disks 15 are evenly distributed in the layer of the steam drying bin outer partition 11 at the bottom of the solar photovoltaic panel 10, and the inner capillary tube disks 16 are evenly distributed in the layer of the heat conducting layer 14; a grain steaming channel 17 is provided in the steam drying bin 1, and the two ends of the grain steaming channel 17 are respectively connected to the grain steaming bin inlet 4 and the grain steaming bin outlet 5, and channel capillary tube disks 18 are evenly distributed in the channel wall of the grain steaming channel 17. The channel wall of the grain steaming channel 17 is filled with thermal silicone grease. The outer capillary tube disk 15 is connected to the inner capillary tube disk 16 and the channel capillary tube disk 18, and the internal heat conducting fluid circulates;

[0030] The outer partition 11 of the steam drying bin, the inner partition 13 of the steam drying bin, and the grain steaming channel 17 are all made of metal foam, and the heat conductive layer 14 is made of thermal silicone grease; the grain storage system is provided with a voltage stabilizing circuit 19 and a battery pack 20, and the solar photovoltaic panel 10 is electrically connected to the battery pack 20 through the voltage stabilizing circuit 19; the solar photovoltaic panel 10 can not only generate electricity for use in the grain storage system, but also utilize the heat dissipation of photovoltaic power generation, the ventilation and heat dissipation of metal foam and the thermal conductivity of the capillary network to use the heat dissipation of photovoltaic power generation to evaporate excess moisture in the grain, thereby reducing the energy consumption of steaming the grain.

[0031] Furthermore, the inner wall of the storage bin 2 is provided with a grain storage bin inner partition 21, which is made of metal foam, and grain storage bin capillaries 22 are evenly distributed in the layer of the grain storage bin inner partition 21. The grain storage bin capillaries 22 are connected to the heat pump 24 through the cold water main pipe 23, and the heat pump 24 is electrically connected to the power supply and the battery pack 20; the grain storage bin capillaries 22 can adjust the temperature environment in the storage bin 2, thereby ensuring the quality of the grain stored in the grain bin 2 for a long time.

[0032] Furthermore, the cold water main pipe 23 is further provided with a solenoid valve 25 .

[0033] Furthermore, the storage bin 2 is provided with a dehumidifier 27, a nitrogen generator 28, a temperature sensor 29, a humidity sensor 30, a nitrogen sensor 31, and a control and processing module 32. The control and processing module 32 is electrically connected to the dehumidifier 27, the nitrogen generator 28, the temperature sensor 29, the humidity sensor 30, the nitrogen sensor 31, and the heat pump 24 respectively; the temperature and humidity in the storage bin 2 are monitored in real time, and nitrogen is replenished to ensure that the grain storage bin 2 achieves the optimal environmental conditions for long-term storage of grain.

[0034] Furthermore, the water channel of the heat pump 24 is connected to the inner capillary tube disc 16 and the channel capillary tube disc 18, and the heat pump 24 is connected to the evaporation and drying bin 1 and the storage bin 2. When it is hot in summer, the storage bin 2 is cooled to improve the grain storage environment. When it is cold in winter, the evaporation and drying bin 1 is heated to ensure the evaporation efficiency of the evaporation and drying bin 1.

[0035] Furthermore, the storage bin 2 is divided into 2 to 5 layers from top to bottom, and a partition floor 26 is provided between two adjacent layers, and a grain outlet is provided on the partition floor 26; multi-layer separation for storing grain can reduce the pressure and temperature inside the stored grain, and reduce the deterioration and mold of grain caused by high storage pressure and increased temperature.

[0036] Furthermore, a generator 33 is provided in the storage bin 2. The generator 33 is installed at the passage through which grain passes from top to bottom, and the generator 33 is electrically connected to the battery pack 20. The potential energy of the falling grain is converted into electrical energy by the generator 33 and stored and recycled, thereby reducing the energy consumption of the grain storage system.

[0037] Furthermore, the storage bin 2 is also provided with a circulation pipe 34, the two ends of which are respectively connected to the grain inlet 4 of the steam drying bin and the grain outlet 7 of the storage bin. The circulation pipe 34 is a power pipe, which drives the grain in the pipe to circulate from the storage bin 2 to the steam drying bin 1 along the pipeline through external power; the circulation pipe 34 can circulate the grain in the storage bin 2 back to the steam drying bin 1, preventing the problem of increased moisture in the storage bin 2 due to excessive moisture, insufficient steaming time, moisture during storage, etc., which causes the grain to become moldy and deteriorate.

[0038] Furthermore, the grain steaming channels 17 are provided in a number of 1 to 10, and a plurality of grain steaming channels 17 can improve the steaming efficiency of the steam-drying bin 1 .

[0039] Furthermore, the grain steaming channel 17 is a spiral from top to bottom from the grain steaming and drying bin inlet 4 to the grain steaming and drying bin outlet 5; the gradually descending spiral shape can extend the length of the grain steaming channel 17, and at the same time, the grain can roll when rotating in the spiral channel, thereby causing the grain in the center and edge of the channel to circulate inside and outside, which is more conducive to steaming the grain and discharging moisture in time.

[0040] Example

[0041] In this embodiment, two steaming channels 17 are provided within the earthworm tunnel 3, and the storage bin 2 has two layers from top to bottom. The photovoltaic power generation structure of the grain storage system converts solar energy into electrical energy through a solar photovoltaic panel 10 that collects solar energy. This energy is stored in a battery pack 20 via a voltage-stabilizing circuit 19. Furthermore, an outer capillary tube disc 15 absorbs excess heat generated by the solar photovoltaic panel 10, maintaining the panel 10 at a constant temperature and improving power generation efficiency. The outer capillary tube disc 15 is connected to the inner capillary tube disc 16, forming a multi-layer structure comprising the outer interlayer 11 of the steam-drying bin, the building layer 12, and the inner interlayer 13 of the steam-drying bin. This structure fully utilizes heat from the building surface and solar heat. This heat is transferred to the inner capillary tube disc 16 and the heat-conducting layer 14 on the inner surface of the steam-drying bin 1, where it is transferred to the interior of the steam-drying bin 1 for steaming the stored grain. Two grain steaming channels 17 are provided in the steaming drying bin 1. The grain passes through the grain steaming channels 17 and the excess moisture in the grain is evaporated by utilizing the ventilation and heat dissipation properties of the metal foam and the thermal conductivity of the capillary network. After the processing is completed, the grain flows through the grain outlet 5 of the steaming drying bin to the grain inlet 6 of the storage bin and enters the storage bin 2.

[0042] The above-ground space of the storage bin 2 is divided into an upper granary and a lower granary that are interconnected. The granary capillaries 22 are tightly arranged in the inner interlayer 21 of the granary of the storage bin 2, and the granary capillaries 22 are connected to the cold water main 23. The lower granary of the storage bin 2 has the same structure as the upper granary, but the distribution is relatively less dense. A small mechanical generator 33 is fixedly installed at each grain passage from top to bottom. The gravitational potential difference formed integrates the current into the battery pack 20 for use in the granary. The bottom of the storage bin 2 is also provided with a circulating grain outlet 8 and a circulating grain inlet 9, which are respectively connected to the two ends of the earthworm tunnel 3. The grain enters the earthworm tunnel 3 from the granary and is further regulated in temperature by contact with the soil layer. In addition, the system adds a heat pump 24 as an auxiliary heat source. When there is a demand for grain to be stored in the warehouse or the amount of grain stored in the warehouse is large in winter, hot water is transported to the inner capillary tube disk 16 and the channel capillary tube disk 18 in the evaporation and drying bin 1 through the auxiliary heat channel to provide heat to the evaporation and drying bin 1, thereby ensuring the evaporation efficiency of the evaporation and drying bin 1.

[0043] Several temperature sensors 29, humidity sensors 30, and nitrogen sensors 31 are evenly distributed within the drying bin 1, storage bin 2, and earthworm tunnel 3. A control and processing module 32 integrates the information from these sensors and controls the dehumidifier 27, nitrogen generator 28, and solenoid valve 25 to prevent water, insects, and spoilage. An air-source heat pump 24 serves as a backup energy source. Finally, the storage bin outlet 7 is used to achieve a closed-loop transport of grain from the granary to the underground granary's constant-temperature inlet tunnel. The horizontal panels within the inlet tunnel wall enhance heat exchange between the wall and the grain. The sensible and latent heat generated by the phase change in the photovoltaic power generation structure's back heat exchange structure, the inner wall heat exchange structure, and the wall structure are connected to the insulated water tank via water coils, forming a circulation system and supplying it to the on-duty staff.

[0044] This embodiment designs a grain evaporation system within the granary, enabling more efficient and appropriate evaporation. The grain is then transferred to several cavities and earthworm tunnels 3 above ground. During this process, the grain undergoes phase-change constant temperature control and potential energy conversion to electrical energy, fully utilizing soil energy and phase-change latent heat to achieve optimal temperature, quality-preserving storage, and green, energy-saving grain storage within the granary. Furthermore, the system utilizes solar power generation and mechanical energy-to-electricity conversion technologies to power the system, recycling waste heat from the solar photovoltaic panels 10 and heat from grain evaporation. Temperature sensors 29, humidity sensors 30, and nitrogen sensors 31 are deployed. A control and processing module 32 uses information transmitted by these sensors to control a small mechanical generator 33, solenoid valve 25, and the grain input and output linkages, thereby achieving green energy storage, intelligent management, and preventing losses during grain storage.

[0045] This embodiment effectively divides each grain inlet space into two drying chambers, distributing the amount of grain entering each inlet and enabling more efficient and adequate drying. The above-ground space is divided into interconnected upper and lower levels, allowing for zoning and control of grain. The walls of each level are appropriately arranged, with the upper level receiving more grain than the lower level. This is because all incoming grain must pass through the upper level. The upper level is not filled until the lower level is fully filled. A metal foam phase change layer and capillary coils maintain constant temperature control in the granary.

[0046] In summary, the present invention performs pre-drying treatment on the grain when it enters the warehouse through the steam drying bin, and then transfers the steamed grain to the storage bin to perform phase change constant temperature control treatment on the grain. The earthworm tunnels buried underground fully utilize the soil energy and phase change latent heat to achieve the purpose of temperature-appropriate quality storage and green energy-saving grain storage in the granary, thereby realizing green energy storage, intelligent management and avoiding losses caused by the grain storage period. Therefore, the present invention has broad application prospects.

[0047] It should be emphasized that the above are only preferred embodiments of the present invention and do not limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An integrated green grain storage system with interconnected partitions, characterized in that: include: A steam drying bin (1), a storage bin (2), and an earthworm tunnel (3); the steam drying bin (1) is used to heat and dry out excess moisture in newly stored grain; the storage bin (2) is used to store grain dried in the steam drying bin (1) for a long period of time; the earthworm tunnel (3) is used to adjust the temperature of the grain in the storage bin (2); the steam drying bin (1), the storage bin (2), and the earthworm tunnel (3) are arranged in sequence from top to bottom; the earthworm tunnel (3) is located in the soil below the ground; the upper part of the steam drying bin (1) is provided with a steam drying bin grain inlet (4); the lower part of the steam drying bin (1) is provided with a steam drying bin grain outlet (5); the upper part of the storage bin (2) is provided with a storage bin grain inlet (6), the lower part of the storage bin (2) is provided with a storage bin outlet (7), the bottom of the storage bin (2) is also provided with a circulating outlet (8) and a circulating inlet (9), the earthworm channel (3) is a spiral tubular heat conduction pipe, the outer wall of the earthworm channel (3) directly conducts heat to contact the underground soil, the earthworm channel (3) is a power pipe, the steam drying bin outlet (5) is connected to the storage bin inlet (6), the circulating outlet (8) and the circulating inlet (9) are respectively connected to the two ends of the earthworm channel (3), the steam drying bin inlet (4) is used for the grain storage system to enter the grain, and the storage bin outlet (7) is used for the grain storage system to discharge the grain; The top of the evaporation drying chamber (1) is provided with a solar photovoltaic panel (10), and the top, side walls and bottom of the evaporation drying chamber (1) are all multi-layer structures, wherein the multi-layer structure is sequentially composed of an evaporation drying chamber outer partition (11), a building layer (12), an evaporation drying chamber inner partition (13), and a heat-conducting layer (14) from the outside to the inside. The outer capillary tube discs (15) are evenly distributed in the layer of the evaporation drying chamber outer partition (11) at the bottom of the solar photovoltaic panel (10), and the inner capillary tube discs (15) are evenly distributed in the layer of the heat-conducting layer (14). The pipe disc (16) is provided in the steaming and drying bin (1), and the two ends of the steaming and drying bin are respectively connected to the steaming and drying bin grain inlet (4) and the steaming and drying bin grain outlet (5), and the channel capillary disc (18) is evenly distributed in the channel wall of the steaming and drying bin (17), and the channel wall of the steaming and drying bin (17) is filled with thermal silicone grease, and the outer capillary disc (15) is connected with the inner capillary disc (16) and the channel capillary disc (18), and the internal heat transfer fluid circulates; The outer interlayer (11) of the steam drying bin, the inner interlayer (13) of the steam drying bin, and the grain steaming channel (17) are all made of metal foam, and the heat conducting layer (14) is made of thermal silicone grease; The grain storage system is provided with a voltage stabilizing circuit (19) and a battery pack (20), and the solar photovoltaic panel (10) is electrically connected to the battery pack (20) via the voltage stabilizing circuit (19).

2. The integrated green grain storage system with partitions connected according to claim 1 is characterized in that: The inner wall of the storage bin (2) is provided with a grain storage bin inner partition (21), the grain storage bin inner partition (21) is made of metal foam, and grain storage bin capillaries (22) are evenly distributed in the layer of the grain storage bin inner partition (21), the grain storage bin capillaries (22) are connected to a heat pump (24) through a cold water main pipe (23), and the heat pump (24) is electrically connected to a power source and a battery pack (20).

3. The integrated green grain storage system with partitions connected as claimed in claim 2, characterized in that: The cold water main pipe (23) is also provided with a solenoid valve (25).

4. The integrated green grain storage system with partitions connected as claimed in claim 2, characterized in that: The storage bin (2) is provided with a dehumidifier (27), a nitrogen generator (28), a temperature sensor (29), a humidity sensor (30), a nitrogen sensor (31), and a control and processing module (32). The control and processing module (32) is electrically connected to the dehumidifier (27), the nitrogen generator (28), the temperature sensor (29), the humidity sensor (30), the nitrogen sensor (31), and the heat pump (24).

5. The integrated green grain storage system with partitions connected as claimed in claim 4 is characterized in that: The water path of the heat pump (24) is connected to the inner capillary tube disc (16) and the channel capillary tube disc (18).

6. The integrated green grain storage system with interconnected partitions according to claim 1, characterized in that: The storage warehouse (2) is divided into 2 to 5 layers from top to bottom, and a partition floor (26) is provided between two adjacent layers, and a grain outlet is provided on the partition floor (26).

7. The integrated green grain storage system with interconnected partitions according to claim 1, characterized in that: A generator (33) is also provided in the storage bin (2). The generator (33) is installed at the opening through which grain passes from top to bottom, and the generator (33) is electrically connected to the battery pack (20).

8. The integrated green grain storage system with interconnected partitions according to claim 1, characterized in that: The storage bin (2) is further provided with a circulation pipe (34), the two ends of which are respectively connected to the grain inlet (4) of the steam drying bin and the grain outlet (7) of the storage bin; the circulation pipe (34) is a power pipe.

9. The integrated green grain storage system with interconnected partitions according to claim 1, characterized in that: The grain steaming passages (17) are provided with 1 to 10 passages.

10. The integrated green grain storage system with interconnected partitions according to claim 1, characterized in that: The grain steaming channel (17) is in a spiral shape from top to bottom from the grain steaming and drying bin inlet (4) to the grain steaming and drying bin outlet (5).

Citation Information

Patent Citations

  • Low-part rotated grain-outlet type cyclical cereal drying machine

    CN104886247A

  • Novel grain distributor for reducing grading during grain warehouse entry

    CN202529476U