Cement silo, generally used in concrete mixing plant bulk cement storage, suitable for storing cement, fly ash and other kinds of bulk building materials, the silo body is equipped with a material level system, which can display the location and amount of materials, hole-breaking device can lift the material deposited for too long and caused by the solid. Cement silo and screw conveyor pump with the use of materials can be transported to various locations, the silo is easy to install, safe and reliable is the ideal bulk storage tank for various mixing stations.