Spiral steel silo [1] installed on-site construction, warehouse roof ground. Molding construction equipment, the meander line speed can reach 5m / min, without scaffolding and other auxiliary facilities, and thus a very short duration. Positions wholly made of thin steel plate, the weight is only equivalent to the weight of the rebar reinforced concrete warehouse with the capacity of greatly reducing the cost. In addition, as can different materials both inside and outside of the cylinder with a double bend bent shape, can greatly reduce the project cost of storage of corrosive materials for the chemical industry, environmental protection and other industries. Small footprint, easy to manage. Spiral silo and other silo, height, diameter can be arbitrarily selected within a large range. Minimum 500mm distance between the two positions, can take full advantage of space, reducing the footprint. The high degree of automation of warehouse equipment together with temperature, the material level, user management is very convenient.