Filling slurry preparation system and preparation method thereof

Abstract

The invention discloses a filling slurry preparation system and a preparation method thereof. The preparation system comprises a thickener, an accident pool, a stirring system, a filling pump and a cement conveying and metering device installed at a discharging port of a cement bin, wherein the thickener and the filling pump are both arranged on the ground, a stepped pit is dug under the ground, the stirring system is composed of a high-speed flexible stirring machine, the high-speed flexible stirring machine and the accident pool are arranged in the pit from top to bottom, a hopper and / or a thick slurry pump is further arranged in the part, between the high-speed flexible stirring machine and the accident pool, of the pit, a sand discharging port of the thickener and a delivery port of the cement conveying and metering device are connected with a feeding port of the high-speed flexible stirring machine, the hopper is connected between a discharging port of the high-speed flexible stirring machine and a filling drill hole of an underground filling pipe network, and the thick slurry pump is connected between the discharging port of the high-speed flexible stirring machine and a pumphopper of the filling pump. According to the filling slurry preparation system and the preparation method thereof, slurry preparation links are fewer, the plant construction investment is reduced, and the equipment arrangement is flexible.

Description

technical field [0001] The invention relates to the technical field of mine solid waste filling, in particular to a filling slurry preparation system and a preparation method thereof. Background technique [0002] At the beginning of the planning of the industrial site, the construction planning of the filling system is often not considered. With the country's increasing emphasis on environmental protection of mines, surface discharge of tailings has increased the economic burden of enterprises, and mines also face a series of problems with caving method or open field method. way to solve the above problems. [0003] Due to the lack of planning for the construction of the filling system in the early stage of the mine, and the design and construction of the filling system in the later stage, the mine often cannot provide a sufficient area for the construction of the filling system, and the construction scope of the filling station is restricted. Therefore, the existing fill...

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Problems solved by technology

Due to the high concentration of the underflow of the thickener, in order to avoid the failure of the underflow slurry pump and affect the normal filling operation, the underflow slurry pump generally needs to be used one by one, which increases equipment investment and intermediate links, and the normal operation of the filling system. increased risk

[0006] 2. For mines using self-flow conveying, in the traditional tailings cemented filling system, the mixing system used for filling slurry preparation generally adopts two-stage mixing in order to obtain a better preparation effect, which not only increases the construction area of ​​the filling station, but also increases the mixing process. Increased, increased energy consumption, the risk of normal operation of the filling system also increased accordingly

Due to the need to arrange multiple platforms, it is often necessary to make the plant of the filling station higher, which increases the investment in plant construction. The columns and legs of the cement silo also need to be increased accordingly, and the basic investment in equipment increases accordingly; among the various types of equipment in the filling station, In addition to the filling slurry preparation system, the size of the filling pump is relatively large, and the selection of the position of the filling pump is limited by the selection of the position of the mixer

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