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

A filling device and filling method technology, which is applied in safety devices, fillings, earthwork drilling and mining, etc., can solve the problems of insufficient running time, poor controllability of filling slurry concentration and flow rate, overflow water running and mixing, etc., so as to improve the concentration Controllability of flow rate, improvement of single-day filling capacity, and effect of ensuring filling quality

Active Publication Date: 2018-09-11
HEBEI IRON & STEEL GRP MINING
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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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  • A high-concentration full tailings cemented continuous filling device and filling method

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Embodiment Construction

[0019] The present invention includes a concentration tank 1, a flocculation tank 3, a vertical sand bin 6, a cement bin 8, a mixing tank 10, and a high-level pool 11.

[0020] Shown in the figure, thickening pool 1 is connected with the upper end of vertical sand bin 6 by conveying pipeline 12, sand pump 2 is installed in the conveying pipeline 12 that thickening pool 1 is connected with vertical sand bin 6, to vertical sand bin 6 Conveying mortar. The concentration range of tailings in concentration tank 1 is 20%~40%, which can continuously provide 100~120t / h of dry sand.

[0021] As shown in the figure, the flocculation tank 3 is connected to the upper end of the vertical sand bin 6 through a delivery pipe 12, and a screw pump 4 is installed in the delivery pipe 12 connecting the flocculation tank 3 and the vertical sand bin 6. The flocculation tank 3 transports the chemical solution of the flocculation tank to the vertical sand bin 6 through the delivery pipeline 12 and t...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F15/00
CPCE21F15/005
Inventor 南世卿胡亚军许长新
Owner HEBEI IRON & STEEL GRP MINING
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