Steel silos are steel storage devices primarily used for storing granular materials such as cement, fly ash, and grain. Since 2013, their use has expanded to include the storage of liquids such as sulfuric acid. This technology originated from grain storage applications abroad in the early 20th century. Since my country introduced galvanized corrugated steel silos in 1982, it has gradually developed three main types: prefabricated, Lippey-type, and large welded steel silos. Based on the silo material, they can be categorized as carbon steel silos, galvanized steel silos, etc. Construction processes encompass roll forming, spiral interlocking, and steel welding technologies.
Steel silos are characterized by high airtightness and structural strength, with single-silo capacities ranging from 10,000 to 100,000 tons. Prefabricated silos use corrugated plates bolted together and are suitable for small silos under 2,000-3,000 tons; Lippey silos are formed by spiral rolling units and have capacities under 5,000 tons; welded silos offer the best airtightness and can store 5,000-100,000 tons of material. With a diameter of 20-60 meters, the construction period is about 3 months. It saves 50% of the cost compared to traditional concrete silos and has advantages such as light weight, small footprint, and reusability.
