The method of preparation of the filling mixture

 

(57) Abstract:

The invention relates to the mining industry and can be used at the enterprises, having in its composition concentrator and leading mining systems development with the mined-out space. The method includes feeding the tailings beneficiation plant along the circular pipeline with the possibility of challenge in several of filling complexes located sequentially along its length. At each filling of the complex away from the ring pipe of the mine tailings and produce their separation in the hydrocyclone for sand and plums. From the drain of the hydrocyclone emit the condensed product, which together with sand hydrocyclone served on the education of filling mixture, and plums, which return in the circular pipeline. In the mixer to form a backfill mixture of sand, the condensed product and additives. The technical result of the invention is to provide year-round transportation of tailings from the beneficiation plant, the preparation of the filling mixture to multiple consumers with the lowest cost. 1 Il.

The invention relates to the mining industry of the IR and the leading mining systems development with the mined-out space.

Known method of preparing the filling mixture, including gidrotsiklonirovaniya tails concentrator with obtaining Sands, which are used as inert filler in the preparation of filling mixture (Smondyrev A. E. Technology and mechanization of filling operations - M.: Nedra, 1974, S. 144).

The disadvantage of this method is loss of part of the tailings from discharge of hydrocyclones, and the impossibility of creating a continuous method of preparing filling mixture and laying-out space.

The closest in technical essence and the achieved result claimed is the method of preparation of the filling mixture, including the filing of tailings beneficiation plant by pipeline backfill complex, split the tails in the hydrocyclone for sand and plums, education backfill mixture of sand and additives. (Patent RU 2019713, IPC CL. 6 E 21 F 15/00, publ. 15.09.94).

The disadvantage of this method is loss of part of the tailings from discharge of hydrocyclones, and the inability to use one pipeline to serve multiple filling complexes.

The objective of the invention is to provide a continuous method, pranoy factory for maintenance of several mines.

The technical result of the invention is to provide year-round transportation of tailings from the beneficiation plant, the preparation of the filling mixture to multiple consumers with the lowest cost.

The technical result is achieved by the fact that in the known method of preparation of the filling mixture, including the filing of tailings beneficiation plant by pipeline backfill complex, split the tails in the hydrocyclone for sand and plums, education backfill mixture of sand and additives, the pipeline is made of a ring with a possibility of tails in several of filling complexes located sequentially along its length, while in filling complex from the drain of the hydrocyclone emit the condensed product, which together with sand hydrocyclone served on the education of filling mixture, and plums, which return in a circular pipe.

In this population included signs, each of which are necessary and together sufficient to achieve the technical result in all cases, the use of the invention.

Overflow return in the pipeline and run it ring with a possibility of tails in neskolko for transportation by pipeline to multiple filling complexes simultaneously and maintain the pipeline constant high speed flow, thereby ensuring normal operation of the pipeline in the winter, which is especially important for mining enterprises located in areas with harsh climatic conditions.

Selection from the drain of the hydrocyclone in filling complex condensed product and its direction together with the Sands of the hydrocyclone on the education of filling mixture allows for more weight to allocate the solid part of the tails to bookmarks.

The method of preparation of the filling mixture is illustrated by a drawing which shows a circuit schematic of the apparatus for the preparation of filling mixture for two filling complexes.

The method of preparation of the filling mixture is carried out as follows.

The original tailings beneficiation plant for pre-padded circular pipe 1 serves on surface of filling complexes 2 mines or mines. In the stowing complex 2 enters the hydrocyclone 3, thickener 4 and the mixer 5. In the hydrocyclone 3 tails divided into Sands, which are used in the filling mixture, and plums, which takes slimes and coarse clay fractions. Drain hydrocyclone 3 enters the thickener 4, where the sludge and clay cyclone 3 served on the education of filling mixture in the mixer 5.

In the mixer 5 in addition to sand hydrocyclone 3 and condensed product depending on the type of the bookmark serves additives such as binder and plasticizers - in the preparation hardening filling mixture or water - hydrosolate. From the mixer 5 finished stowing mixture through pipes to the laying of manufacture. For laying of pipeline to lay mines can be used for operating capital and preparatory development or the surface can be drilled.

Drain thickener 4 enters the sump 6, where the pump 7 is returned in the annular pipe 1. Drain almost does not contain a solid phase and used as the transporting medium to maintain the required flow rate in the annular pipe 1 and the tailings delivery next sequentially located along the length of the annular tubing 1 backfill complex 2, where the cooking process of filling mixture similar.

To remove excess tails of an annular pipe 1, resulting from the unequal performance of the concentrator surface and filling complexes, can be provided by the direction of the excess tails in Vostochnyi the clone in the annular pipe 1.

An example of a specific implementation.

Norilsk mining company operates a copper-Nickel ores in the mines: the lighthouse, Komsomolskaya East, Komsomolskaya Western Taimyr, October and Komsomol Rocky development systems with the mined-out space. Mined ore is fed into the Talnakh concentrator that produces copper and Nickel concentrate.

For disposal of the resulting tailings, one of the options, surface filling complexes of these mines are connected by an annular pipe 1 diameter branches 8, is equal to 273 mm Drain branch pipe 9 is the diameter of 159 mm Tails concentrator pump STY-EN 8,6 fed from a thickener in a stirrer, of which the pump Prayag forced into the working branch 8 of the annular tubing 1 (pumps, the thickener and the stirrer set at the site concentrator and not shown).

To ensure the smooth operation of the concentrator and surface filling complexes 2 mines to the processing plant can be installed, at least two of the thickener and two stirrer, soy is a major complexes 2 each of the mines of the mine tailings is given of an annular pipe 1 in the amount providing the mined-out space in accordance with the mine plan. After separation of the sand and underflow overflow thickener 4 returns to the ring pipe 1, while maintaining the desired velocity of flow in it.

Selected Sands and the condensed product is served in the mixer 5, which enter the necessary additives, such as cement, and the mixture is directed to develop, subject to the bookmark.

Alternatively, when the annular pipe 1 are connected not all filling complexes 2 enterprises, but only in relative proximity to each other. For conditions of Norilsk mining company separate annular piping can be connected filling complexes Taimyrsky mines and October and filling complexes Komsomolsky mines Western Communist East.

Both versions of the drain branch circular pipes 1 are connected with the stirrer in which to return the draining and re-used as the conveying medium. The excess of the liquid phase can be enjoyed on the site.

The method of preparation of the filling mixture, including filing chbosky and plums, education backfill mixture of sand and additives, characterized in that the pipeline is made of a ring with a possibility of tails in several of filling complexes located sequentially along its length, with each filling complex from the drain of the hydrocyclone emit the condensed product, which together with sand hydrocyclone served on the education of filling mixture, and plums, which return in the circular pipeline.

 

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2 dwg

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2 dwg

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3 dwg

FIELD: mining industry.

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EFFECT: simplified construction, lower laboriousness.

2 dwg

Backfill mix // 2270921

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EFFECT: increased strength and crack-resistance.

2 tbl

FIELD: mining industry.

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EFFECT: improved workability of mix and reduced cost.

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FIELD: mining industry, particularly underground mineral mining with excavated space filling with hardening filling mix.

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EFFECT: increased operational safety due to improved quality mine space filling, reduced costs and increased mine intensity.

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Fill mix // 2282724

FIELD: mining, particularly to develop valuable mineral deposits along with goaf filling.

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