This kind of silo has larger diameter and capacity, which is popular for its easy
installation and low costs. There are many ways of unloading, such as the fluidized
unloading, multi-spot unloading, the flat bottom sweeping unloading and clean
by hands etc... We can also choose the concrete conical bottom to put the automatic-flow
unloading into practice. The flat-bottom steel silos can be widely used
in grain process and storage lines, some of them can be chosen to be used in
oil, feed, flour, starch, brew, and port or grain storage industrial lines. 
This type is free-flow discharging with good cleaning system without residue.It's
widely used in storaging seed,flour,feed,breed,cement and chemical , which need
to be cleaned frequently. With solid structure the conical- bottom has large strength
.There are three kind of angles of 40,45and 60,among which the angle of 60
conical-bottom is usually be used to store bigger pelletled and powdered materials
of high viscosity