Dampproof storage bin for dry sand
By installing a stirring rod and an air guiding system inside the dry sand storage silo, combined with a moisture-proof layer, the problem of dry sand clumping in high humidity environments is solved, achieving stable storage and efficient use of dry sand.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MACHENG YUANFENG MINERAL RESOURCES DEVELOPMENT CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-05-19
AI Technical Summary
Existing dry sand storage equipment cannot effectively resist the intrusion of external moisture in high humidity environments, causing the dry sand to clump together. Furthermore, existing moisture-proof measures require regular replacement of desiccants, increasing usage costs and maintenance workload.
A dry sand moisture-proof storage bin was designed. The dry sand is continuously stirred by a stirring rod, and gas is introduced through a gas guiding system to dehumidify it. Combined with the moisture-proof layer inside the outer barrel and the moisture-proof material inside the inner barrel, a comprehensive moisture-proof measure is formed to resist the intrusion of external moisture.
It effectively prevents dry sand from clumping, keeps the dry sand in a loose state, extends storage time and performance, reduces maintenance frequency and cost, and improves equipment operation stability.
Smart Images

Figure CN224257426U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of material storage devices, specifically a dry sand moisture-proof storage bin. Background Technology
[0002] Dry sand plays an indispensable role in many industrial production fields, such as casting, building materials production, and glass manufacturing. The quality of dry sand directly affects the quality and performance of the final product. However, dry sand is highly susceptible to the effects of a humid environment during storage. Once it gets damp, dry sand is prone to clumping, which not only reduces its fluidity and workability but also affects its uniform mixing effect in production, thus impacting product quality. Therefore, effective moisture-proof storage of dry sand is crucial.
[0003] Currently, the most common dry sand storage equipment on the market includes ordinary warehouse-style storage silos and some storage devices with simple moisture-proof measures. Ordinary warehouse-style storage silos are usually just simple containers that rely on the overall moisture-proof environment of the warehouse to protect the dry sand, lacking targeted moisture-proof design. Storage devices with simple moisture-proof measures generally involve coating the inner wall of the storage silo with moisture-proof material or placing desiccant inside the silo.
[0004] However, relying solely on overall warehouse moisture protection or simple coating of internal wall moisture-proof materials is insufficient to effectively prevent the intrusion of external moisture. In high-humidity environments, dry sand is still prone to becoming damp and clumping. The use of desiccants has limited effectiveness and requires regular replacement, increasing usage costs and maintenance workload. Utility Model Content
[0005] To overcome the above-mentioned defects, this utility model provides a dry sand moisture-proof storage bin, which solves the problem that relying solely on overall warehouse moisture-proofing or simple inner wall moisture-proofing material coating is not enough to effectively resist the intrusion of external moisture. In high humidity environments, dry sand is still prone to becoming damp and clumping. The method of placing desiccant has a limited range of effectiveness and requires regular replacement, which increases the cost of use and maintenance workload.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a dry sand moisture-proof storage bin, comprising an outer barrel, an inner barrel fixedly installed inside the outer barrel, a moisture-proof layer provided on the inner wall of the outer barrel, a top cover installed on the top of the outer barrel, a motor fixedly installed on the top of the top cover, a transmission rod coaxially fixedly connected to the output end of the motor, multiple sets of stirring rods fixedly connected to the outside of the transmission rod, a first air guide ring rotatably connected inside the top cover, a sealing cover rotatably connected to the top of the first air guide ring, the transmission rod movably passing through the sealing cover, an air inlet pipe connected to the top of the sealing cover, the air inlet pipe passing through the top cover, a connecting pipe symmetrically connected and fixedly connected to the outside of the first air guide ring, a second air guide ring connected and fixedly connected to the outside of the connecting pipe, the second air guide ring being located at the top of the inner barrel and rotatably connected to the top of the inner barrel, multiple sets of exhaust pipes for use with the inner barrel fixedly installed at the bottom of the second air guide ring, multiple sets of nozzles fixedly installed inside the exhaust pipes, the nozzles passing through the inner barrel, and multiple sets of filter holes opened on the inner barrel.
[0007] As a further embodiment of this utility model: a bottom block is fixedly connected to the bottom of the inner barrel, the bottom block penetrates the outer barrel, and the bottom block has a frustum structure. A discharge pipe is connected to the bottom of the bottom block, and an inlet is provided on the top cover.
[0008] As a further embodiment of this utility model: the outer layer of the outer barrel is made of high-strength rust-proof metal, the inner layer of the outer barrel is coated with moisture-proof material, and the moisture-proof layer is made of heat-insulating and moisture-proof material.
[0009] As a further embodiment of this utility model: multiple sets of fixing blocks are fixedly installed on the outer side of the top cover, a fixing ring is fixedly connected to the outer side of the outer barrel, and multiple sets of support legs are fixedly connected to the outer side of the fixing ring by bolts.
[0010] As a further embodiment of this utility model: multiple sets of mounting grooves are provided on the outer side of the inner barrel to cooperate with the exhaust pipe, a protective shell is threadedly connected to the top of the top cover, the motor is located inside the protective shell, and multiple sets of through holes are provided in the mounting grooves to cooperate with the nozzle.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. Through the coordinated work of stirring and air guiding, the quality of material processing is greatly improved. The stirring rod, driven by the motor, continuously stirs and agitates the dry sand in the inner barrel, effectively preventing the dry sand from clumping due to long-term accumulation or moisture, maintaining its loose state, and providing convenience for subsequent use. At the same time, the air guiding system introduces gas from the air inlet pipe, passes through a series of air guiding components, and finally sprays it out from the nozzle, which plays a role in dehumidifying the dry sand in the inner barrel. The moisture-proof layer of the outer barrel and the moisture-proof material of the inner layer work together to resist external moisture, further maintain the dry state of the dry sand, ensure stable material quality, and extend storage time and performance.
[0013] 2. The combination design of the support legs and fixing rings ensures that the equipment is placed stably during operation, reducing shaking and vibration during stirring and air guiding, and ensuring safe operation of the equipment. In terms of maintenance, the mounting groove and through hole of the inner barrel facilitate the installation and positioning of the exhaust pipe and nozzle. When maintenance or replacement of these parts is required, the operation is simple and convenient. Attached Figure Description
[0014] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;
[0016] Figure 3 This is a first-view schematic diagram of the cross-sectional structure of this utility model;
[0017] Figure 4 This is a second-view schematic diagram of the cross-sectional structure of this utility model;
[0018] Figure 5 This is a schematic diagram of the disassembled structure of this utility model.
[0019] In the diagram: 1. Outer barrel; 2. Top cover; 3. Fixing block; 4. Protective shell; 5. Inlet; 6. Support leg; 7. Fixing ring; 8. Discharge pipe; 9. Air inlet pipe; 10. Motor; 11. Moisture-proof layer; 12. Second air guide ring; 13. Exhaust pipe; 14. Nozzle; 15. Connecting pipe; 16. Transmission rod; 17. Stirring rod; 18. Bottom block; 19. Through hole; 20. First air guide ring; 21. Sealing cover; 22. Mounting groove; 23. Inner barrel. Detailed Implementation
[0020] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0021] like Figures 1-5 As shown, this utility model provides a technical solution for a dry sand moisture-proof storage silo:
[0022] The system includes an outer bucket 1, an inner bucket 23 fixedly installed inside the outer bucket 1, a moisture-proof layer 11 on the inner wall of the outer bucket 1, a top cover 2 installed on the top of the outer bucket 1, a motor 10 fixedly installed on the top of the top cover 2, a transmission rod 16 coaxially fixedly connected to the output end of the motor 10, multiple sets of stirring rods 17 fixedly connected to the outside of the transmission rod 16, a first air guide ring 20 rotatably connected inside the top cover 2, a sealing cover 21 rotatably connected to the top of the first air guide ring 20, the transmission rod 16 movably passing through the sealing cover 21, and an inlet valve connected to the top of the sealing cover 21. Air pipe 9, air inlet pipe 9 passes through top cover 2, first air guide ring 20 is symmetrically connected to connecting pipe 15 on the outside, connecting pipe 15 is connected to second air guide ring 12 on the outside, second air guide ring 12 is located at the top of inner barrel 23 and is rotatably connected to the top of inner barrel 23, multiple sets of exhaust pipes 13 are fixedly installed at the bottom of second air guide ring 12 to cooperate with inner barrel 23, multiple sets of nozzles 14 are fixedly installed on the inside of exhaust pipe 13, nozzles 14 pass through inner barrel 23, multiple sets of filter holes are opened on inner barrel 23;
[0023] Specifically, during use, the motor 10 is started, and the output end of the motor 10 drives the transmission rod 16 to rotate coaxially. Multiple sets of stirring rods 17 on the outer side of the transmission rod 16 rotate accordingly. In the inner barrel 23, the rotational movement of the stirring rods 17 agitates and stirs the dry sand, effectively preventing it from clumping due to prolonged accumulation or moisture, ensuring the dry sand remains loose and is suitable for subsequent use. Then, external gas is introduced through the air inlet pipe 9. The gas enters the first air guide ring 20. Since the first air guide ring 20 is fixedly connected to the transmission rod 16, and the sealing cover 21 is rotatably connected to the first air guide ring 20, even if the air guide component rotates synchronously with the transmission rod 16... The air intake effect of the air intake pipe 9 is not affected, ensuring a stable gas supply during equipment operation and ensuring the normal functioning of the overall equipment. The first air guide ring 20 delivers gas to the second air guide ring 12 through the connecting pipe 15. The exhaust pipe 13 at the bottom of the second air guide ring 12 then guides the gas to the nozzle 14, which finally sprays out from the nozzle 14. This can dehumidify the dry sand in the inner barrel 23. At the same time, the moisture-proof layer 11 set on the inner wall of the outer barrel 1 can resist the humid environment and prevent external moisture from corroding the inner barrel 23 and the dry sand inside the barrel, further maintaining the dry state of the dry sand and extending the storage time and performance of the dry sand.
[0024] The bottom of the inner barrel 23 is fixedly connected to a bottom block 18, which penetrates the outer barrel 1 and has a frustum structure. The bottom of the bottom block 18 is connected to a discharge pipe 8. The top cover 2 has an inlet 5. The outer layer of the outer barrel 1 is made of high-strength rust-proof metal, and the inner layer of the outer barrel 1 is coated with moisture-proof material. The moisture-proof layer 11 is made of heat-insulating and moisture-proof material.
[0025] Specifically, the design of the inlet 5 facilitates the rapid and accurate entry of materials into the inner barrel 23, improving work efficiency and reducing feeding time costs. The frustum-shaped base block 18 guides the material smoothly to the discharge pipe 8, preventing material residue and ensuring smooth and thorough discharge, which helps improve the overall work efficiency of the equipment. Furthermore, the high-strength rust-proof metal of the outer barrel 1 effectively prevents the outer barrel 1 from rusting, extending the service life of the equipment. The moisture-proof material of the inner layer works together with the moisture-proof layer 11 to not only prevent moisture but also provide heat insulation, further protecting the inner barrel 23 and the internal materials from the effects of moisture and temperature changes, ensuring stable material quality.
[0026] Multiple sets of fixing blocks 3 are fixedly installed on the outside of the top cover 2. A fixing ring 7 is fixedly connected to the outside of the outer barrel 1. Multiple sets of support legs 6 are fixedly connected to the outside of the fixing ring 7 by bolts. Multiple sets of mounting slots 22 are opened on the outside of the inner barrel 23 to cooperate with the exhaust pipe 13. A protective shell 4 is threadedly connected to the top of the top cover 2. The motor 10 is located inside the protective shell 4. Multiple sets of through holes 19 are opened in the mounting slots 22 to cooperate with the nozzle 14.
[0027] Specifically, the combination of the support leg 6 and the fixing ring 7 ensures that the equipment is placed stably and remains stable during operation such as stirring and air guiding, reducing equipment shaking and vibration and improving the safety of equipment operation. The design of the mounting groove 22 and the through hole 19 facilitates the installation and positioning of the exhaust pipe 13 and the nozzle 14, making the operation more convenient when these parts need to be maintained or replaced. The protective shell 4 not only protects the motor 10 from external impacts, dust and other effects, extending the service life of the motor 10, but also the threaded connection makes it easy to disassemble, which is beneficial to the inspection and maintenance of the motor 10.
[0028] The working principle of this utility model is as follows:
[0029] First, dry sand is discharged into the inner barrel 23 through the feed port 5 opened on the top cover 2;
[0030] Next, the motor 10 is turned on, and the output end of the motor 10 drives the transmission rod 16 to rotate coaxially. Multiple sets of stirring rods 17 fixed to the outside of the transmission rod 16 rotate accordingly. During this process, the stirring rods 17 continuously stir and agitate the dry sand in the inner tank 23, effectively preventing the dry sand from clumping due to prolonged accumulation or moisture, maintaining its loose state, and ensuring its subsequent use is not affected. Simultaneously, gas is introduced into the equipment through the air inlet pipe 9, which is connected to the top of the sealing cover 21. The gas enters the first air guide ring 20, and is then... The first air guide ring 20 is fixedly connected to the transmission rod 16, and the sealing cover 21 is rotatably connected to the first air guide ring 20. Even if the entire air guide component rotates synchronously with the transmission rod 16, the air intake effect of the air inlet pipe 9 will not be affected, ensuring a stable gas supply during equipment operation. The introduced gas is transported to the second air guide ring 12 through the first air guide ring 20 and the symmetrically distributed connecting pipes 15. Then, it is guided to the nozzle 14 by the exhaust pipe 13 at the bottom of the second air guide ring 12 and finally sprayed out from the nozzle 14 to dehumidify the dry sand in the inner barrel 23.
[0031] It is worth mentioning that the outer barrel 1 is made of high-strength rust-proof metal, which effectively prevents the outer barrel 1 from rusting and greatly extends the service life of the equipment. The inner layer is coated with moisture-proof material, which works together with the moisture-proof layer 11 made of heat-insulating and moisture-proof material on the inner wall. It can not only resist the humid environment and prevent external moisture from corroding the inner barrel 23 and the dry sand inside the barrel, but also play a heat insulation role, further maintaining the dry state of the dry sand, ensuring the stability of material quality, and extending its storage time and performance. The bottom of the inner barrel 23 is fixedly connected to the frustum structure block 18, which penetrates the outer barrel 1. The bottom of the block 18 is connected to the discharge pipe 8. This frustum structure can guide the material to flow smoothly to the discharge pipe 8, avoid material residue, ensure the smoothness and thoroughness of discharge, and improve the overall working efficiency of the equipment.
[0032] Finally, the multiple sets of fixing blocks 3 fixedly installed on the outside of the top cover 2 can be used to connect and fix the auxiliary equipment to other components or installation platforms, ensuring that the equipment will not shift during operation. The multiple sets of support legs 6 connected to the outside of the outer barrel 1 by fixing rings 7 and bolts make the equipment stable and maintain stability during operation such as stirring and air guiding, reducing equipment shaking and vibration, and improving the safety of equipment operation. The multiple sets of mounting grooves 22 opened on the outside of the inner barrel 23 and the multiple sets of through holes 19 opened in the mounting grooves 22 to cooperate with the nozzles 14 facilitate the installation and positioning of the exhaust pipe 13 and the nozzles 14, making the operation more convenient when maintenance or replacement of parts is required. The protective shell 4 with threaded connection on the top of the top cover 2 covers the motor 10 inside. The protective shell 4 not only protects the motor 10 from external collisions, dust and other effects, extending the service life of the motor 10, but also the threaded connection makes it easy to disassemble, which is conducive to the inspection and maintenance of the motor 10.
[0033] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A dry sand moisture-proof storage bin comprising an outer barrel (1), characterized in that: An inner barrel (23) is fixedly installed inside the outer barrel (1). A moisture-proof layer (11) is provided inside the inner wall of the outer barrel (1). A top cover (2) is installed on the top of the outer barrel (1). A motor (10) is fixedly installed on the top of the top cover (2). A transmission rod (16) is coaxially fixedly connected to the output end of the motor (10). Multiple sets of stirring rods (17) are fixedly connected to the outside of the transmission rod (16). A first air guide ring (20) is rotatably connected inside the top cover (2). A sealing cover (21) is rotatably connected to the top of the first air guide ring (20). The transmission rod (16) moves through the sealing cover (21). An air inlet pipe is connected to the top of the sealing cover (21). (9) The air inlet pipe (9) passes through the top cover (2). The outer side of the first air guide ring (20) is connected to a connecting pipe (15) in a symmetrical structure. The outer side of the connecting pipe (15) is connected to a second air guide ring (12). The second air guide ring (12) is located at the top of the inner barrel (23) and is rotatably connected to the top of the inner barrel. The bottom of the second air guide ring (12) is fixedly installed with multiple sets of exhaust pipes (13) used in conjunction with the inner barrel (23). Multiple sets of nozzles (14) are fixedly installed on the inner side of the exhaust pipes (13). The nozzles (14) pass through the inner barrel (23). Multiple sets of filter holes are opened on the inner barrel (23).
2. A dry sand moisture resistant storage bin as claimed in claim 1 wherein: The bottom of the inner barrel (23) is fixedly connected to a bottom block (18), which penetrates the outer barrel (1). The bottom block (18) is a frustum structure, and the bottom of the bottom block (18) is connected to a discharge pipe (8). The top cover (2) has an inlet (5).
3. A dry sand moisture resistant storage bin as defined in claim 2, wherein: The outer layer of the outer barrel (1) is made of high-strength rust-proof metal, the inner layer of the outer barrel (1) is coated with moisture-proof material, and the moisture-proof layer (11) is made of heat-insulating and moisture-proof material.
4. A dry sand moisture resistant storage bin as defined in claim 3, wherein: Multiple sets of fixing blocks (3) are fixedly installed on the outside of the top cover (2), and a fixing ring (7) is fixedly connected to the outside of the outer barrel (1). Multiple sets of support legs (6) are fixedly connected to the outside of the fixing ring (7) by bolts.
5. A dry sand moisture resistant storage bin as defined in claim 4, wherein: The outer side of the inner barrel (23) has multiple sets of mounting slots (22) for use with the exhaust pipe (13). The top cover (2) is threaded with a protective shell (4). The motor (10) is located inside the protective shell (4). The mounting slots (22) have multiple sets of through holes (19) for use with the nozzle (14).