The blending silo is simultaneously used for a continuous blending process as well as for raw mix storage. The feeding of the silo takes place via a parallel distributor and aero-slides ensuring a controlled build-up of the different material layers. Homogenizing of the raw meal is achieved by causing the layers of different CaCO3 content to flow together by funnelling (2) action and thus merging with one another. The gravity flow in the funnels produces the blending effect.
The bottom of the Silo is divided into aeration sections (4). Each section has a flow control gate (5) and an air valve (6) assigned to it. Three blowers (8), are available for aerating the Silo bottom. The sections are aerated three at a time for varying periods. As a result, three funnels are formed simultaneously, developing relatively slowly from the Silo bottom to the upper surface of the stored material. The funnel formation process is so controlled, that fresh raw meal which has just been fed into the silo cannot rush straight through to the Silo outlet. This being prevented by first closing three gates of the aerated sections and causing three new funnels to develop in three other sections. This ensures controlled flow behaviour of the blending funnels.
Silo Features
- High Blending Efficiency
- Low Power Consumption
- High Availability
- al Control and Maintenance
- 1. Material Layer
- 2. Material Funnel
- 3. Dust Collector
- 4. Aerated section
- 5. Flow control gate
- 6. Valve
- 7. Central hopper
- 8. Roots blower
