Central Cone Storage Silo

With the progressively increasing size of the production units in industry there has been a corresponding increase in size of the silo units for storing the cement. Silos with diameter of 30 m and more and with individual storage capacities ranging up to 40,000 t must be capable of efficient and trouble-free emptying. The IBAU central cone silo is today’s answer to this task. Several discharge gates placed at the circumference of the silo opened one after the other make the material flow downwards near the outer shell. This system has been proved to be extraordinarily successful in more than 5000 units being in operation. More than 99% recovery is reported by the users.

Only a small ring of the silo bottom is covered with fluidizing units and divided into several sections. One section only after the other is activated by means of a low capacity blower. In other words a small amount of compressed air requiring only little power makes the material move above one defined section. The material moves downwards at the silo wall avoiding the formation of incrustations and dead zones on the silo wall. When discharging through two or more gates parallel, any desired discharge capacity can be achieved.