Novel drying granary system

By integrating the storage unit, ventilation system, and heat exchanger into a new grain storage system, and combining natural and mechanical ventilation, the quality decline of grain caused by moisture problems in grain storage systems has been solved, and a highly efficient and energy-saving grain drying effect has been achieved.

CN223965826UActive Publication Date: 2026-03-03HENAN SHIRONG SILO ENG CO LTD
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Patent Information

Application Number
CN202520623030.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-03
Publication Date
2026-03-03
Estimated Expiration
2035-04-03

AI Technical Summary

Technical Problem

The existing grain storage system lacks an integrated drying system, which leads to a decline in grain quality due to moisture issues. Furthermore, the existing drying systems are independent and costly, and there is a lack of integrated solutions on the market.

Method used

A novel grain drying silo system is designed, integrating the silo body, ventilation system, fan, and heat exchanger. It achieves efficient drying by combining natural and mechanical ventilation openings and utilizing countercurrent contact. It also incorporates a bucket elevator and screw conveyor for material circulation and control.

Benefits of technology

It achieves a simple, efficient, and energy-saving grain drying process, reduces human intervention, operates autonomously, lowers drying costs, and improves grain quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of granary drying, and discloses a novel drying granary system which comprises a granary body, a plurality of natural ventilation openings are formed in the top of the granary body, a plurality of mechanical ventilation openings are formed in the top of the granary body, and the bottom of the granary body is fixedly connected with a supporting assembly for supporting a granary body structure. A ventilation fan is installed at the bottom of the bin body, an electric heat exchanger is installed at the top of the ventilation fan, the outer portion of the bin body is fixedly connected with a fixing assembly used for fixing the position during feeding, and the bottom of the bin body is fixedly connected with a discharging assembly used for controlling material distribution. The automatic drying device is simple in structure, is mainly formed by reusing system components of an original bin, is efficient and energy-saving, and can automatically run until drying is completed because materials are in countercurrent contact with air, required energy is small, operation is easy and convenient, and excessive manual intervention is not needed once the materials enter the drying process.
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Description

Technical Field

[0001] This utility model relates to the field of grain drying technology, and in particular to a novel grain drying system. Background Technology

[0002] The grain drying silo system is an intelligent system integrating modern Internet of Things (IoT) technology and automated control technology, designed to improve grain storage quality and reduce losses. Through real-time data acquisition and monitoring, the system automatically adjusts environmental conditions within the silo, such as temperature, humidity, and gas concentration, effectively preventing grain mold and pests. Furthermore, the system features intelligent inbound and outbound management, achieving fully automated and intelligent control of the grain circulation process, significantly improving the efficiency and safety of grain storage.

[0003] In existing technologies, many grain storage systems are not equipped with drying systems, resulting in grains entering the storage having high moisture content or experiencing dampness due to climate factors. These situations can lead to problems with grain quality. However, existing grain storage and drying systems are independent systems, resulting in high drying costs and overall system costs. Currently, there are no similar products on the domestic market, representing a market gap. Therefore, a new type of grain drying system is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a novel grain drying system, which aims to improve the current market lack of integrated solutions that combine drying systems with grain storage systems, resulting in a decline in grain quality due to moisture issues.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel grain drying silo system includes a silo body, with multiple natural ventilation openings and multiple mechanical ventilation openings at the top of the silo body. A support assembly for supporting the silo structure is fixedly connected to the bottom of the silo body, a ventilation fan is installed at the bottom of the silo body, and an electric heat exchanger is installed on the top of the ventilation fan. A fixing assembly for fixing the position during material loading is fixedly connected to the outside of the silo body, and a material feeding assembly for controlling material dispensing is fixedly connected to the bottom of the silo body.

[0007] As a further description of the above technical solution:

[0008] The fixed assembly includes a bucket elevator tower, and a feeding bucket elevator is installed inside the bucket elevator tower.

[0009] As a further description of the above technical solution:

[0010] The support assembly includes a ventilation cage, the top of which is fixedly connected to the bottom of the chamber.

[0011] As a further description of the above technical solution:

[0012] The feeding assembly includes a discharge screw conveyor, one end of which is installed at the bottom of the silo.

[0013] As a further description of the above technical solution:

[0014] A chute is fixedly connected to the top of the silo body, and the other end of the chute is installed outside the feed bucket elevator.

[0015] As a further description of the above technical solution:

[0016] The discharge screw conveyor has a material dispensing port on its exterior and an electric gate is installed on its exterior.

[0017] As a further description of the above technical solution:

[0018] The discharge screw conveyor is externally coupled to the interior of the ventilation cage, and the bottom of the silo is conical.

[0019] As a further description of the above technical solution:

[0020] The top of the silo is conical, and the ventilation fan is externally coupled to the inside of the ventilation cage.

[0021] This utility model has the following beneficial effects:

[0022] This invention features a simple structure, primarily achieved by reusing the original system components. It is highly efficient and energy-saving because the material and air are in countercurrent contact, requiring less energy. It is easy to operate and requires minimal human intervention once it enters the drying process, operating automatically until drying is complete. Attached Figure Description

[0023] Figure 1 This is a top view of the novel grain drying silo system proposed in this utility model;

[0024] Figure 2 This is an elevation view of the novel grain drying system proposed in this utility model;

[0025] Figure 3 This invention provides another perspective on the novel grain drying system proposed in this utility model. Figure 1 ;

[0026] Figure 4 This invention provides another perspective on the novel grain drying system proposed in this utility model. Figure 2 .

[0027] Legend:

[0028] 1. Silo body; 2. Natural ventilation opening; 3. Mechanical ventilation opening; 4. Ventilation cage; 5. Discharge screw conveyor; 6. Electric gate; 7. Material dispensing port; 8. Feed bucket elevator; 9. Bucket elevator tower; 10. Chute; 11. Ventilation fan; 12. Electric heat exchanger. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1 and Figure 2 This utility model provides an embodiment of a novel grain drying silo system, comprising a silo body 1. The bottom of the silo body 1 is conical, allowing for control over the amount of material during loading. This silo body 1 can be a concrete silo, a corrugated prefabricated silo, a rolled-edge silo, a welded silo, or various other types, all requiring complete material circulation. The top of the silo body 1 is conical, enabling more precise control over the amount of material loaded. Multiple natural ventilation openings 2 are provided on the top of the silo body 1. The silo body 1 has fixed positions for these openings. This device is part of the silo, located on the top, and primarily serves for ventilation. The number of ventilation openings can be designed according to the size of the silo. These ventilation openings are unpowered, relying entirely on air pressure difference to control airflow.

[0031] Multiple mechanical ventilation openings 3 are provided on the top of the compartment 1 (as shown in the attached document). Figure 1 This device, also part of the silo, is located on the top of the silo and its function is ventilation, primarily through active ventilation using an axial flow fan to achieve airflow exchange. A support assembly is fixedly connected to the bottom of the silo body 1, providing support and stability. The support assembly includes a ventilation cage 4, the top of which is fixedly connected to the bottom of the silo body 1, providing support and stability. This is the main air intake channel at the bottom of the silo, with small holes at the top, the diameter of which is smaller than the particle size of the material. The bottom is connected to the fan via ventilation ducts. It is the main facility for bottom ventilation in the silo. Located at the bottom of the silo, its distribution varies depending on the size of the silo, and the area of ​​its ventilation panels typically occupies 15% to 100% of the silo bottom area.

[0032] A ventilation fan 11 is installed at the bottom of the silo body 1, which is the main power source for air flow inside the silo. An electric heat exchanger 12 is installed at the top of the ventilation fan 11. This device is used to heat the air; for materials with high moisture content, the incoming hot air can dry the material. Other types of heat exchangers can also be used. Their model and heat exchange area can be considered based on the required air volume. Fixed components are fixed to the outside of the silo body 1 to maintain the position during material loading. These components provide support during loading. The fixed components include the bucket elevator tower 9, which is mainly used to fix the bucket elevator and may also serve as a maintenance facility for the bucket elevator, as well as a passageway to the top of the silo. However, this facility is not the core component. An infeed bucket elevator 8 is installed inside the bucket elevator tower 9. This equipment is the main lifting device for material entering the silo. It can be used for feeding new material or for material circulation. A chute 10 is fixedly connected to the top of the silo body 1, which is the main channel for material to enter the silo. The other end of the chute 10 is installed on the outside of the feed bucket elevator 8. The chute 10 is used to connect the feed bucket elevator 8 to the inside of the bin body 1.

[0033] Reference Figure 3 and Figure 4 The bottom of the silo 1 is fixedly connected to a feeding assembly for controlling material dispensing. The silo 1 supports and fixes the feeding assembly, providing a fixed dropping structure and feeding area. The feeding assembly includes a discharge screw conveyor 5 (as shown in the attached diagram). Figure 3 This equipment is mainly used for unloading materials from the bottom of the silo or for circulating materials within the silo. This equipment can be a screw conveyor or other conveying equipment, such as a scraper conveyor, belt conveyor, etc. One end of the discharge screw conveyor 5 is installed at the bottom of the silo body 1 to connect to the inside of the silo body 1, making the unloading process more convenient.

[0034] The external part of the discharge screw conveyor 5 is equipped with a material dispensing port 7. This dispensing port is mainly designed for dispensing materials, used for discharging materials from the hopper. An electric gate 6 is installed externally on the discharge screw conveyor 5. This gate is used for circulating materials. During the drying process, opening this gate allows material to circulate until the material reaches the designed moisture content. This gate can be operated pneumatically, hydraulically, or manually, etc. The external part of the discharge screw conveyor 5 is coupled to the interior of the ventilation cage 4 (as shown in the attached diagram). Figure 4 The ventilation cage 4 provides external protection for the discharge screw conveyor 5. The ventilation fan 11 is externally coupled to the inside of the ventilation cage 4, which in turn provides external protection for the ventilation fan 11.

[0035] Working principle: During operation, the material is conveyed by the feed hopper elevator 8 and sent into the interior of the silo 1 through the chute 10. The ventilation fan 11 and the electric heat exchanger 12 are started, and the material is dried by the circulation of hot air. In order to improve the drying effect, multiple mechanical ventilation ports 3 and multiple natural ventilation ports 2 are used in conjunction to allow the material to circulate and mix with the hot air. The flow direction of the material is opposite to the flow direction of the air. After multiple cycles, the material can reach the preset moisture content. For materials that require very little moisture reduction, dry air can be directly circulated to reduce the moisture content of the material.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 new system for drying grain in a silo, comprising a silo body (1), characterised in that: The top of the bin body (1) is provided with a plurality of natural ventilation openings (2), the top of the bin body (1) is provided with a plurality of mechanical ventilation openings (3), the bottom of the bin body (1) is fixedly connected with a supporting assembly supporting the structure of the bin body (1), the bottom of the bin body (1) is provided with a ventilation fan (11), the top of the ventilation fan (11) is provided with an electric heat exchanger (12), the outside of the bin body (1) is fixedly connected with a fixing assembly used for fixing the position during feeding, and the bottom of the bin body (1) is fixedly connected with a discharging assembly used for controlling the material discharge.

2. The novel drying silo system according to claim 1, characterized in that: The fixing assembly comprises a bucket elevator tower (9), and the inside of the bucket elevator tower (9) is provided with a feeding bucket elevator (8).

3. The novel drying bin system of claim 2, wherein: The supporting assembly comprises a ventilation cage (4), and the top of the ventilation cage (4) is fixedly connected to the bottom of the bin body (1).

4. The novel drying bin system of claim 3, wherein: The discharging assembly comprises a discharging screw conveyor (5), and one end of the discharging screw conveyor (5) is installed at the bottom of the bin body (1).

5. The novel drying bin system of claim 4, wherein: The top of the bin body (1) is fixedly connected with a chute (10), and the other end of the chute (10) is installed outside the feeding bucket elevator (8).

6. The novel drying bin system of claim 5, wherein: The outside of the discharging screw conveyor (5) is provided with a material discharge opening (7), and the outside of the discharging screw conveyor (5) is provided with an electric gate (6).

7. The novel drying bin system of claim 6, wherein: The outside of the discharging screw conveyor (5) is coupled to the inside of the ventilation cage (4), and the bottom of the bin body (1) is conical.

8. The novel drying bin system of claim 3, wherein: The top of the bin body (1) is conical, and the outside of the ventilation fan (11) is coupled to the inside of the ventilation cage (4). The top of the bin body (1) is conical, and the outside of the ventilation fan (11) is coupled to the inside of the ventilation cage (4).