‌Spiral Steel Silo‌

‌Spiral Steel Silo‌ Introduction

The ‌Spiral Steel Silo‌ is a special silo design, which is characterized by spiral ribs bitten on the outer wall of the silo. The width of these ribs is usually 30mm-40mm, which is five times the thickness of the material, thus greatly enhancing the load-bearing capacity of the silo. This design not only improves the strength, stability and earthquake resistance of the silo, but also because of the use of materials with particularly strong anti-corrosion function, the service life of the ‌Spiral Steel Silo‌ far exceeds that of other types of silo.

Functional characteristics of ‌Spiral Steel Silo‌

Automatic Material Conveyance and Discharge

The core functionality of ‌Spiral Steel Silo‌ lies in their built-in spiral conveyor. This design enables automatic conveyance and discharge of materials from the silo, greatly enhancing efficiency and convenience in material handling.

Storage of Various Materials

‌Spiral Steel Silo‌, particularly spiral steel silos, are versatile and can store a wide range of materials, including grains (such as corn, wheat, soybeans, and rice), fly ash, slag, and cement. This versatility makes them valuable in industries such as agriculture, chemicals, cement, and construction materials.

Enhanced Load Capacity and Stability

During the rolling process, the exterior wall of a spiral steel silo forms a spiral rib that is five times thicker than the material itself. This significantly enhances the silo’s load capacity and stability, making its overall strength, rigidity, and seismic resistance superior to other types of silos.

Long Lifespan and Corrosion Resistance

Spiral steel silo use highly corrosion-resistant materials, such as hot-dip galvanized steel, extending their lifespan and improving resistance to corrosion and wear.

Waterproof and Moisture-Proof

The spiral-edge connection of spiral steel silo ensures excellent airtightness between the walls, and the steel plates are specially treated to effectively prevent moisture infiltration, keeping stored items dry and intact.

High Automation Level

‌Spiral Steel Silo‌ can be equipped with temperature and material level sensors, enabling automated management and making them highly user-friendly.

Flexible Assembly and Adaptability

Spiral steel silo feature flexible assembly options, allowing customization to meet various storage capacities and space requirements. Their height and diameter can be selected within a broad range, and the minimum distance between silos can be as small as 500mm, optimizing space utilization and reducing the footprint.

Eco-Friendly and Energy-Efficient

Spiral steel silo use eco-friendly materials and energy-efficient processes to minimize environmental impact, aligning with modern industrial sustainability requirements.

Structural composition of ‌Spiral Steel Silo‌

Silo Roof

The roof of a ‌Spiral Steel Silo‌ is a crucial component, typically designed in a conical shape to provide shade, shelter from rain, and resistance to wind and snow. It features a discharge receiving port in the center for material ejection. The roof also includes parts such as the roof cover (roof cap), roof cover plate, and roof framework, which together ensure the roof’s stability and airtightness.

Silo Wall

The wall is the main body of the ‌Spiral Steel Silo‌, usually made from narrow, high-strength hot-dip galvanized steel sheets. These sheets are uncoiled, bent, and interlocked to form a continuous, spiral wall. The thickness of the wall is calculated and selected based on the silo’s geometric shape and the characteristics of the stored material to ensure the wall’s load-bearing capacity and stability.

Spiral Conveyor

The spiral conveyor is the core component of the spiral silo, located inside the silo body. It uses rotational motion to transport material from the silo bottom to the discharge receiving port at the top, enabling automatic conveyance and discharge of materials.

Silo Bottom

The bottom of the ‌Spiral Steel Silo‌ supports the entire silo structure and the stored material. Depending on the design, the bottom may be conical or flat. A conical bottom facilitates smooth material discharge, while a flat bottom might require additional discharge equipment.

Dust Collector

Dust collectors are typically installed at the bottom and top of the ‌Spiral Steel Silo‌ to collect and handle dust generated during the conveying and discharge processes, keeping the silo and surrounding environment clean.

Support Structure

The support structure of the ‌Spiral Steel Silo‌ includes horizontal upright frames and surrounding small cylindrical supports. These structures collectively support the entire silo body, ensuring its stability and safety.

Other Accessories

Spiral silo may also include ventilation equipment, humidity control systems, temperature sensors, and level gauges. These accessories monitor and control the internal environmental parameters, ensuring the quality of the stored material.

Main advantages of ‌Spiral Steel Silo‌

High Structural Strength

Spiral steel silos are made from high-strength steel, providing superior load-bearing capacity and wind resistance. They can withstand substantial pressure and impact. The silo walls feature a spiral rib that is five times thicker than the material itself, significantly enhancing the silo’s overall strength, stability, and seismic resistance compared to other silo types.

Excellent Stability

The silo body uses a fully welded structure, ensuring overall stability and minimizing the risk of collapse or deformation.

Long Lifespan

Constructed from corrosion-resistant materials, these silos effectively prevent rust and corrosion, offering a long service life. With appropriate material selection based on corrosion and abrasion resistance requirements, their normal lifespan can reach up to 30 years, far exceeding that of other types of silos.

Good Sealing

The roof features a unique sealing design that effectively prevents leakage of moisture and dust from stored grains. The spiral interlocking structure ensures a high degree of airtightness, meeting the fumigation and pest control needs for grain storage.

High Storage Efficiency

The large internal space of spiral steel silos allows for the storage of more grain, thus improving storage efficiency.

Effective Ventilation

The fully welded structure of the silo ensures good ventilation, which aids in drying and air circulation, thereby maintaining the quality of stored grains.

Energy Efficiency and Environmental Protection

Made from new materials with good thermal insulation properties, spiral steel silos effectively reduce energy consumption and environmental impact.

Ease of Management

The grain intake and discharge ports are located at the top of the silo, facilitating operation and management while reducing labor and material costs. The high level of automation, combined with temperature sensors and level gauges, makes management very convenient.

Small Footprint

The height and diameter of spiral steel silos can be chosen within a wide range, and the minimum distance between silos can be as small as 500mm. This allows for efficient use of space and reduces the footprint.

Short Construction Time and Low Cost

Spiral steel silo are constructed on-site, with the roof and ground installation. The construction speed can reach up to 5 meters per minute without the need for scaffolding or other auxiliary facilities, resulting in a shorter construction period. Made entirely of thin steel plates, their weight is only equivalent to the rebar weight of a concrete silo with the same capacity, significantly lowering construction costs.

Flexible Assembly

The modular design of spiral steel silos allows for flexible assembly based on specific needs, adapting to various storage capacities and spatial requirements.

Wide Range of Applications

Spiral steel silo are used in industries such as grain storage, brewing, urban and industrial wastewater treatment, and agriculture. Their excellent airtightness makes them suitable for storing grains, cement, fly ash, slag fine powders, and other powdered materials, with extensive applications in the building materials industry.

Application scope of ‌Spiral Steel Silo‌