Prefabricated heat-insulated steel plate silo
By prefabricating the bottom, body, and cover of the silo in the factory and combining them with ventilation and lifting components, the problems of complex installation and heat accumulation in existing steel silos have been solved, enabling rapid installation and efficient grain storage management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI FUYOU ANIMAL HUSBANDRY TECH CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-06-30
AI Technical Summary
Existing steel silos require foundation design and construction before installation, resulting in poor manufacturing precision, high steel consumption, long construction period, rudimentary appearance, and easy cracking of welds. Furthermore, they neglect the issue of heat accumulation caused by grain respiration, which affects the safety and quality of stored grain.
The prefabricated design, which involves prefabricating the bottom, body, and cover of the cylinder in the factory and assembling them directly on site, combined with ventilation and lifting components, enables natural ventilation and grain turning, thus preventing heat buildup.
It reduces on-site construction and installation time, improves grain storage quality, avoids heat accumulation, and enhances grain storage safety and ventilation.
Smart Images

Figure CN224419436U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grain storage containers, and in particular to a prefabricated insulated steel silo. Background Technology
[0002] Currently, round grain silos are used for grain storage. To reduce costs and improve moisture protection, many grain silos use welded steel plates instead of traditional brick and concrete structures. For example, the existing technology announcement CN212376378U proposes an above-ground insulated steel silo, which includes a metal silo body. The bottom of the metal silo body is welded with a bottom support ring. The upper end of the metal silo body is a conical structure. A platform is set at the top of the conical end of the metal silo body. Four support columns are vertically welded to the edge of the platform. A conical rainproof canopy is fixed above the support columns with screws. Photovoltaic panels are embedded on the upper surface of the conical rainproof canopy. A wireless monitoring camera is fixed to the center of the top of the conical rainproof canopy with screws.
[0003] Ordinary steel silos require foundation design and construction before installation. Once the foundation is completed and inspected, the silo is installed and fixed to the foundation's embedded parts. Simple steel silos typically have side panels welded from top to bottom using steel strips at regular intervals, with the cylindrical silo wall structure formed and welded on-site from shaped steel sections. However, this method suffers from poor manufacturing precision, high steel consumption, long construction periods, and a rudimentary, rough appearance. Furthermore, weld defects can easily lead to cracking, posing a safety hazard to stored grain. It also neglects the grain's own respiration and heat generation, causing heat buildup at the bottom and affecting storage quality. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a prefabricated insulated steel silo that can be installed directly on a prefabricated ground, reducing the amount of on-site construction work, shortening the installation period, avoiding heat accumulation caused by the respiration of the grain at the bottom, and effectively improving the quality of grain storage.
[0005] This utility model discloses a prefabricated insulated steel silo, comprising a bottom component, a body component, a cover component, a ventilation component, and a lifting component. The bottom component is installed at the point of use. The body component has an internal insulation material layer. The body and bottom are connected and assembled into a whole in a specific order. The cover component is installed on top of the body and has the ventilation component installed on it. The lifting component is installed inside the body. The bottom, body, and cover are manufactured as individual pieces in the factory using specialized equipment. After being transported to the installation site, they are assembled into a whole by bolts in a specific order. This allows for direct installation on a prefabricated surface, reducing on-site construction work and installation time. The ventilation component achieves natural ventilation for the grain silo, and the lifting component can transport and turn the grain upwards, preventing heat accumulation caused by the respiration of the grain at the bottom, thus effectively improving the quality of grain storage.
[0006] Preferably, the bottom component includes a base, a support seat, and multiple T-shaped uprights. The support seat is installed on the top of the base, and the top of the support seat is tapered. Multiple insertion slots are axially opened on the outer wall of the support seat, and the multiple T-shaped uprights are respectively fastened into the insertion slots. The base, support seat, and T-shaped uprights are processed in the factory by special equipment and manufactured as individual pieces. After being transported to the installation site, the base can be directly installed on the precast ground, and the T-shaped uprights are fastened into the insertion slots.
[0007] Preferably, the cylinder body component includes multiple cylinders, multiple sealing rings, and multiple sets of fixing bolts. The inner wall of the cylinder is provided with a thermal insulation material layer. The multiple cylinders are assembled into a whole with the T-shaped uprights by multiple fixing bolts. A sealing ring groove is opened at the top of the cylinder, and a sealing ring is installed at the bottom of the cylinder. The sealing ring is inserted into the sealing ring groove for sealing. During installation, the cylinders are arranged and fitted onto the outside of the T-shaped uprights in a certain order, and assembled into a whole with the T-shaped uprights by multiple fixing bolts. The upper and lower cylinders are sealed and connected by sealing rings and sealing ring grooves, which reduces the amount of on-site construction work and shortens the installation period.
[0008] Preferably, the cylinder cover component includes a conical cover, a support ring, a fixing ring, a connecting sealing ring, and a grain feeding pipe. A support ring is installed at the top of the T-shaped upright, and a support ring is installed at the bottom of the conical cover. A connecting sealing ring is installed at the bottom of the support ring, and the connecting sealing ring is inserted into the sealing ring groove of the top cylinder. The bottom of the support ring is connected to the fixing ring by bolts. A grain feeding pipe is installed on the conical cover. The conical cover is installed on the top of the cylinder, so that the support ring drives the connecting sealing ring into the sealing ring groove. The bolts are tightened to fix the support ring and the fixing ring, thus protecting the top. Grain can be added into the cylinder after installation through the grain feeding pipe.
[0009] Preferably, the ventilation components include a ventilation duct, a conical rain cap, and a ventilation fan. The ventilation duct is installed at the center of the top of the conical cap, and the top of the ventilation duct is fitted with a conical rain cap. Multiple ventilation slots are provided on the outer wall of the ventilation duct, and a ventilation fan is installed inside the ventilation duct. Activating the ventilation fan allows for natural ventilation of the grain silo through the ventilation slots, facilitating ventilation and preventing dampness.
[0010] Preferably, the lifting component includes multiple connecting rods, multiple fixing plates, a lifting cylinder, an explosion-proof motor, a rotating shaft, and spiral blades. A fixing plate is fixedly installed at one end of each connecting rod, and the fixing plate is bolted to the upper inner wall of the T-shaped upright. The outer wall of the lifting cylinder is connected to the connecting rods. An explosion-proof motor is installed at the top of the lifting cylinder. A feed inlet is located at the bottom of the lifting cylinder, and a discharge outlet is located at the top. The rotating shaft is rotatably installed inside the lifting cylinder, with its input end connected to the output end of the explosion-proof motor. Spiral blades are installed on the outer wall of the rotating shaft. When the explosion-proof motor is started, the rotating shaft rotates, allowing the lower material to enter the lifting cylinder through the feed inlet. The rotating shaft drives the spiral blades to rotate, lifting and conveying the grain upwards within the lifting cylinder. The grain is then discharged upwards through the discharge outlet. This upward transport and turning of the lower grain prevents heat accumulation due to respiration at the bottom, effectively improving the quality of grain storage.
[0011] Preferably, it also includes a discharge pipe, a discharge bend, and an electric control valve. The discharge pipe is installed and connected to the upper front end of the lifting cylinder. A sealing sleeve is provided on the cylinder body. The other end of the discharge pipe extends out of the cylinder body through the sealing sleeve. The discharge bend is installed at the output end of the discharge pipe and connected to it. An electric control valve is installed at the input end of the discharge pipe. When grain is needed, the electric control valve is opened to allow the snacks conveyed in the lifting cylinder to enter the discharge pipe and be discharged through the discharge bend, which is convenient for use.
[0012] Preferably, it also includes an inspection door and multiple fixing ears. The inspection door is installed at the front end of the cylinder body, and multiple fixing ears are installed on the outer wall of the base. Multiple fixing holes are opened on the fixing ears. After the base is placed on the precast ground of the installation ground, the base is fixed by the fixing ears and fixing holes to ensure stability during use. The inspection door facilitates internal inspection and maintenance after the grain is emptied.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the bottom, body, and cover of the cylinder are processed and manufactured as individual parts by special equipment in the factory. After being transported to the installation site, they are assembled into a whole by bolts in a certain order, which can realize direct installation on the prefabricated ground, reducing the amount of on-site construction work and the installation period. The ventilation component realizes the effect of natural ventilation in the grain silo, and the lifting component can transport and turn the grain at the bottom upwards, avoiding heat accumulation caused by the respiration of the grain at the bottom, thus effectively improving the quality of grain storage. Attached Figure Description
[0014] Figure 1This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the isometric structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the internal structure of this utility model;
[0017] Figure 4 This is a front cross-sectional structural diagram of the present invention;
[0018] Figure 5 This is a schematic diagram of the lower cross-sectional structure of this utility model;
[0019] The following are labeled in the attached diagram: 1. Base; 2. Bearing seat; 3. T-shaped upright; 4. Cylinder; 5. Sealing ring; 6. Fixing bolt; 7. Conical cover; 8. Support ring; 9. Fixing ring; 10. Connecting sealing ring; 11. Grain feeding pipe; 12. Ventilation pipe; 13. Conical rain cap; 14. Ventilation fan; 15. Connecting rod; 16. Fixing plate; 17. Lifting cylinder; 18. Explosion-proof motor; 19. Rotating shaft; 20. Spiral blade; 21. Discharge pipe; 22. Discharge bend; 23. Electrically controlled valve; 24. Inspection door; 25. Fixing lug. Detailed Implementation
[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.
[0021] like Figures 1 to 5As shown, the support seat 2 is installed on the top of the base 1. The top of the support seat 2 is conical. Multiple insertion slots are axially opened on the outer wall of the support seat 2. Multiple T-shaped uprights 3 are respectively fastened and inserted into the insertion slots. The inner wall of the cylinder 4 is provided with a heat insulation material layer. Multiple cylinders 4 are assembled into a whole with T-shaped uprights 3 by multiple fixing bolts 6. A sealing ring groove is opened on the top of the cylinder 4. A sealing ring 5 is installed on the bottom of the cylinder 4. The sealing ring 5 is sealed and inserted into the sealing ring groove. A support ring 8 is installed on the top of the T-shaped uprights 3. A support ring 8 is installed on the bottom of the conical cover 7. A connecting sealing ring 10 is installed on the bottom of the support ring 8. The connecting sealing ring 10 is sealed and inserted into the sealing ring groove of the top cylinder 4. The bottom of the support ring 8 is connected to the fixing ring 9 by bolts. A grain feeding pipe 11 is installed on the conical cover 7. A ventilation pipe 12 is installed in the middle of the top of the conical cover 7. A conical rain cap 13 is installed on the top of the ventilation pipe 12. Multiple ventilation slots are opened on the outer wall of the ventilation pipe 12. A ventilation fan 14 is installed inside the pipe 12. A fixing plate 16 is fixedly installed at one end of the connecting rod 15. The fixing plate 16 is installed on the upper end of the inner wall of the T-shaped upright 3 by bolts. The outer wall of the lifting cylinder 17 is connected to the connecting rod 15. An explosion-proof motor 18 is installed at the top of the lifting cylinder 17. A feed port is opened at the bottom of the lifting cylinder 17. A discharge port is opened at the top of the lifting cylinder 17. A rotating shaft 19 is rotatably installed inside the lifting cylinder 17. The input end of the rotating shaft 19 is connected to the output end of the explosion-proof motor 18. A spiral blade 20 is installed on the outer wall of the rotating shaft 19. A discharge pipe 21 is installed and connected to the upper front end of the lifting cylinder 17. A sealing sleeve is provided on the cylinder body. The other end of the discharge pipe 21 passes through the sealing sleeve and extends out of the cylinder body. A discharge bend 22 is installed and connected to the output end of the discharge pipe 21. An electric control valve 23 is installed at the input end of the discharge pipe 21. An inspection door 24 is installed at the front end of the cylinder body. Multiple fixing ears 25 are installed on the outer wall of the base 1. Multiple fixing holes are opened on the fixing ears 25.
[0022] The base 1, bearing seat 2, and T-shaped upright 3 are manufactured as individual pieces using specialized equipment in the factory. After being transported to the installation site, the base 1 can be directly installed on the precast ground. After the base 1 is placed on the precast ground, it is fixed using the fixing ears 25 and fixing holes to ensure stability during use. The T-shaped upright 3 is then securely inserted into the insertion slot. Cylinders 4 are arranged and fitted onto the outside of the T-shaped upright 3 in a specific order, and assembled into a whole with the T-shaped upright 3 using multiple fixing bolts 6. The upper and lower cylinders 4 are sealed together by a sealing ring 5 and a sealing ring groove, reducing the amount of on-site construction work and shortening the installation period. The conical cover 7 is installed on the top of the cylinder 4, causing the support ring 8 to drive the connecting sealing ring 10 into the sealing ring groove. The bolts are tightened to fix the support ring 8 and the fixing ring 9 together. The system is protected. After installation, grain can be added into the cylinder via the grain inlet pipe 11. Activating the ventilation fan 14 through the ventilation slots enables natural ventilation of the grain silo, facilitating air circulation and preventing moisture buildup. Activating the explosion-proof motor 18 drives the rotating shaft 19 to rotate. The lower material enters the lifting cylinder 17 through the feed inlet. The rotating shaft 19 drives the spiral blades 20 to rotate, lifting and conveying the grain upwards within the lifting cylinder 17. The grain is then discharged upwards through the outlet, preventing heat buildup caused by the respiration of the grain at the bottom and effectively improving the quality of grain storage. When grain is needed, the electric control valve 23 is opened, allowing the grain conveyed in the lifting cylinder 17 to enter the discharge pipe 21. The grain is then discharged through the discharge bend 22 for easy use. The inspection door 24 facilitates internal inspection and maintenance after the grain has been emptied.
[0023] like Figures 1 to 5As shown, this utility model discloses a prefabricated insulated steel silo. During operation, after being transported to the installation site, the base 1 can be directly installed on the precast ground. The base 1 is fixed using fixing ears 25 and fixing holes to ensure stability during use. T-shaped uprights 3 are securely inserted into the insertion slots. Cylinders 4 are arranged and fitted onto the outside of the T-shaped uprights 3 in a specific order. Multiple fixing bolts 6 are used to assemble the cylinders 4 into a single unit. The upper and lower cylinders 4 are sealed together by a sealing ring 5 and a sealing ring groove, reducing the amount of on-site construction work. A conical cover 7 is installed on the top of the cylinders 4, causing the support ring 8 to drive the connecting sealing ring 10 into the sealing ring groove. Tightening the bolts secures the support ring 8 to the fixing ring 9, protecting the top. The silo is connected via a grain feeding pipe 1. After installation, grain can be added into the cylinder. The ventilation fan 14 is started, and the natural ventilation of the grain silo is achieved through the ventilation slot, which facilitates ventilation and avoids moisture. The explosion-proof motor 18 is started to drive the rotating shaft 19 to rotate. The lower material enters the lifting cylinder 17 through the feed port. The rotating shaft 19 drives the spiral blades 20 to rotate and lift the grain upward in the lifting cylinder 17. The grain is then discharged to the top through the discharge port. The lower grain is transported and turned upward to avoid heat accumulation caused by the respiration of the grain at the bottom, which effectively improves the quality of grain storage. When grain is needed, the electric control valve 23 is opened to allow the grain conveyed in the lifting cylinder 17 to enter the discharge pipe 21. The grain is discharged through the discharge bend 22 and the inspection door 24 is opened to facilitate internal inspection and maintenance after the grain is emptied.
[0024] The ventilation fan 14 and explosion-proof motor 18 of the prefabricated insulated steel silo of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.
[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A fabricated thermal steel silo, characterized in that, It includes a bottom component, a body component, a cover component, a ventilation component, and a lifting component. The bottom component is installed at the location of use. The body component has an insulation material layer inside. The body and bottom are connected and assembled into a whole in a certain order. The cover component is installed on the top of the body and has a ventilation component installed on it. The lifting component is installed inside the body.
2. A fabricated insulated steel silo as claimed in claim 1 wherein, The bottom component of the cylinder includes a base (1), a support seat (2) and multiple T-shaped uprights (3). The support seat (2) is installed on the top of the base (1). The top of the support seat (2) is set as a cone. Multiple insertion slots are axially opened on the outer wall of the support seat (2). Multiple T-shaped uprights (3) are respectively fastened and inserted into the insertion slots.
3. A fabricated insulated steel silo as claimed in claim 2 wherein, The cylinder body component includes multiple cylinders (4), multiple sealing rings (5) and multiple sets of fixing bolts (6). The inner wall of the cylinder (4) is provided with a heat insulation material layer. The multiple cylinders (4) are assembled into a whole with the T-shaped uprights (3) by multiple fixing bolts (6). A sealing ring groove is opened at the top of the cylinder (4), and a sealing ring (5) is installed at the bottom of the cylinder (4). The sealing ring (5) is sealed and inserted into the sealing ring groove.
4. A fabricated insulated steel silo as claimed in claim 3 wherein, The cylinder cover component includes a conical cover (7), a support ring (8), a fixing ring (9), a connecting sealing ring (10), and a grain feeding pipe (11). The top of the T-shaped upright (3) is equipped with a support ring (8), the bottom of the conical cover (7) is equipped with a support ring (8), the bottom of the support ring (8) is equipped with a connecting sealing ring (10), the connecting sealing ring (10) is sealed and inserted into the sealing ring groove of the top cylinder (4), the bottom of the support ring (8) is connected to the fixing ring (9) by bolts, and the grain feeding pipe (11) is installed on the conical cover (7).
5. A fabricated insulated steel silo as claimed in claim 4 wherein, The ventilation components include a ventilation pipe (12), a conical rain cap (13), and a ventilation fan (14). The ventilation pipe (12) is installed at the top center of the conical cap (7). The conical rain cap (13) is installed on the top of the ventilation pipe (12). Multiple ventilation slots are opened on the outer wall of the ventilation pipe (12). The ventilation fan (14) is installed inside the ventilation pipe (12).
6. The prefabricated insulated steel silo as described in claim 2, characterized in that, The lifting components include multiple connecting rods (15), multiple fixing plates (16), lifting cylinder (17), explosion-proof motor (18), rotating shaft (19), and spiral blades (20). One end of the connecting rod (15) is fixedly installed with a fixing plate (16). The fixing plate (16) is installed on the upper end of the inner wall of the T-shaped upright (3) by bolts. The outer wall of the lifting cylinder (17) is connected to the connecting rod (15). The top of the lifting cylinder (17) is equipped with an explosion-proof motor (18). The bottom of the lifting cylinder (17) has a feed port. The upper part of the lifting cylinder (17) has a discharge port. The rotating shaft (19) is rotatably installed inside the lifting cylinder (17). The input end of the rotating shaft (19) is connected to the output end of the explosion-proof motor (18). The outer wall of the rotating shaft (19) is equipped with spiral blades (20).
7. A fabricated insulated steel silo as claimed in claim 6 wherein, It also includes a discharge pipe (21), a discharge bend (22) and an electric control valve (23). The discharge pipe (21) is installed and connected to the upper front end of the lifting cylinder (17). A sealing sleeve is provided on the cylinder body. The other end of the discharge pipe (21) passes through the sealing sleeve and extends out of the cylinder body. The discharge bend (22) is installed and connected to the output end of the discharge pipe (21). An electric control valve (23) is installed at the input end of the discharge pipe (21).
8. The fabricated insulated steel silo according to claim 1, wherein, It also includes an inspection door (24) and multiple fixing ears (25). The inspection door (24) is installed at the front end of the cylinder body, and multiple fixing ears (25) are installed on the outer wall of the base (1). Multiple fixing holes are opened on the fixing ears (25).