A high-concentration full tailings cemented continuous filling device and filling method

Abstract

A high-concentration full tailings cemented continuous filling device and filling method belong to the technical field of non-coal mine full tailings filling equipment and methods, and are used for high-concentration full tailings cemented continuous filling of non-coal mines. The technical solution is: the concentration tank is connected to the upper end of the vertical sand bin through the conveying pipeline, the flocculation tank is connected to the upper end of the vertical sand bin through the conveying pipe, and the sand discharge port at the lower end of the vertical sand bin is connected to the mixing barrel through the conveying pipe. The cementing silo is connected to the mixing tank through a double-pipe screw feeder, the high-level pool is connected to the mixing tank through a water delivery pipeline, and the discharge pipeline of the mixing tank is connected to the filling pipeline. The invention can improve the single-day filling capacity of a single set of equipment and realize 24-hour non-intermittent continuous filling operation. The filling equipment can control the concentration and flow rate of the filling slurry, and the concentration of the filling slurry can reach more than 72%. The invention greatly improves the production efficiency and ensures the filling quality.

Description

technical field [0001] The invention relates to a high-concentration full tailings cemented continuous filling device and a filling method for non-coal mines, and belongs to the technical field of non-coal mines full tailings filling equipment and filling methods. Background technique [0002] In the process of mine production, the full tailings filling method has the advantages of not destroying the surface ecology, not relocating villages, not polluting groundwater, high recovery rate of mine resources, and no need to build tailings ponds on the surface, so most underground mines use Mining by filling method. At present, the mine tailings filling adopts the intermittent filling process, which can meet the safe production of underground mines, but the filling equipment is unstable, the overflow water is mixed, and the controllability of the concentration and flow rate of the filling slurry is poor. Intermittent filling equipment needs to be started frequently, and the actu...

AI Technical Summary

Problems solved by technology

At present, the mine tailings filling adopts the intermittent filling process, which can meet the safe production of underground mines, but the filling equipment is unstable, the overflow water is mixed, and the controllability of the concentration and flow rate of the filling slurry is poor. Intermittent filling equipment needs to be started frequently, and the actual running time in a single day is less than 16 hours

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