1. It can effectively solve the technical barrier of physical index reduction and cement harden caused by temperature difference and moist air in steel silo wall. This design can effectively control the range of temperature of minus 50℃ to 160℃ of steel silo ambient temperature, and the each physical index is unchanged.

3. Solve the problem of cement completely discharge in steel silo. This design adopts the patent technology, it guarantees the requirement of discharge on demand and on time, and the requirement of unblocked discharge and complete discharge. The design index: The empty rate of 1~30 thousand tons of steel silo is more than 95%, 5~20 thousand tons steel silo is more than 95%.