Filler layer segregation prevention type tailing filler preparation and filling system

The invention relates to a filler layer segregation prevention type tailing filler preparation and filling system. The system mainly comprises disc tailing conveyors, a tailing mixer, a water inlet pipe, a regulating valve, a mixed material conveying pipe, a cement adding bin, a PLC (programmable logic controller) and a filling site. The cement adding bin and the PLC are connected through a cement conveying pipe, and the filling site is below the mixed material conveying pipe. The tailing mixer is arranged below the cement adding bin by a vertical height difference of 1.2-2.2m; a mixed material activation stirrer is arranged below the tailing mixer by a vertical height difference not smaller than 1.3m, and the rotation speed of the mixed material activation stirrer is controlled to be not smaller than 980r/min; the mixed material conveying pipe is connected with the mixed material activation stirrer; the mixed material activation stirrer is connected with the PLC through a wire. The system has advantages that