In order to improve the production effectiveness , we can put a storage silo above the mixers, to prepare a batch of materials are waiting for mixing . In this way ,it can improve 30% production effectiveness and reflect the mixing good points of mixers. Another reason is that there will be a bridging issues when materials are falling down. So there need set up the vibrating motor or air hammer. In order to inspect and check the sealing , there need design a pneumatic or manual valves at the discharging outlet of silos. In order to ensure discharging materials smoothly, the silos’ cone angle shall be less than 60 degree.