Full tailing glue stuff slurry and preparation method thereof

Abstract

The invention provides a full tailing glue stuff slurry and a preparation method thereof. The full tailing glue stuff slurry is prepared from the materials of cement and tailings, wherein the ratio of cement and sand is 1: 4-1: 10, and the stuff slurry is prepared by the steps of concentrating, pH value regulating, filter pressing, churning and mixing and the like, the stuffed slurry concentration by preparation is 70-80%. The full tailing glue stuff slurry is environmentally friendly and efficient, the stuff slurry by preparation is better in uniformity, by the preparation method, the cost of stuffing is significantly cut down, the preparation process of the stuff slurry is simplified, and the working reliability of the preparation system of stuff slurry is increased.

Description

technical field [0001] The invention relates to the technical field of filling and mining, in particular to a full tailings cemented filling slurry and a preparation method thereof. Background technique [0002] "Mining Handbook" printed for the seventh time in April 2010 by the Metallurgical Industry Press {China Edition Library CIP Data Hezi (2007) No. 147805, ISBN978-7-5024-0374-4} Volume 4 Second Chapter 10 details the filling mining method, its application fields and the filling materials used, etc. Its content does not involve non-metallic mines, especially phosphate mines, and more importantly, there is no part about filling with tailings in its content. Describe how the filling materials meet the national environmental protection standards and realize environmental protection filling. [0003] Chinese patent CN 102531482 A "a filling paddle for filling mining method and its preparation method" discloses a preparation method of mining filling slurry for the above pro...

AI Technical Summary

Problems solved by technology

[0004] Although the prior art proposes a preparation method for filling slurry, this method has the following disadvantages: (1) Adding large particle mining waste residues to the filling slurry will cause uneven stirring of the filling slurry on the one hand. Stirring equipment complicates the preparation system, increases operating costs, and increases filling costs

[0005] (2) The mining waste slag added to the filling slurry needs to be crushed to less than 2cm. The size of the existing mining waste slag reaches 20cm before crushing, and the large size accounts for a large proportion. If the mining waste slag needs to be crushed to less than 2cm, two-stage crushing and One-stage screening system complicates the technological process, greatly increases operating costs, and directly increases filling costs

[0006] (3) The particles of mining waste slag added to the filling slurry are relatively large, resulting in the settlement of mining waste slag during the subsequent filling slurry transportation process, resulting in pipe plugging during the filling slurry transportation process

In order to specifically solve the problem of filling slurry transportation, it is necessary to increase the amount of superfine powder or cement in the filling slurry, which directly increases the filling cost

[0007] (4) Adding ultrafine powder to the filling slurry can reduce the amount of cement and reduce certain costs, but in some areas, there are no ultrafine powder manufacturers, and it is difficult to purchase ultrafine powder. Even if it is purchased, the transportation distance is long, resulting in superfine powder. The price of micropowder is equal to or exceeds the price of cement purchased nearby