Method for hydraulic filling of long single mine workings

FIELD: mining.

SUBSTANCE: invention refers to mining industry, and namely to the method used for hydraulic filling of long single mine workings. It involves influence of retaining and filtering connection straps, installation of pulp pipeline, and supply of filling pulp. Water is drained via drain holes made in connection straps installed on the side opposite to the pulp supply. Filling pulp is supplied to the filled area via pulp pipeline with the holes made in lower part, which is attached to the roof of mine working throughout its length. The holes made at the beginning of the pipeline are equipped with petal valves.

EFFECT: increases the filling degree of the worked-out area in hard-to-reach sections.

2 cl, 2 dwg

 

The invention relates to mining and can be used for bookmarks longest single workings, mostly inaccessible.

The known method hydraulic bookmarks cameras, in which the flow of filling material is produced through wells drilled in the roof framing, serves stowing mixture through wells alternately at several points by successive opening of the wells at the point of submission after the construction of the array to the maximum height in the previous feed point (A.S. USSR 1788299, MKI: E21F 15/08, publ. 15.01.1993, bull. No. 2).

However, this method is applicable in the conditions of the exhaust chambers, without lining, in addition, it is quite time-consuming.

Closest to the present invention is a method of filling out space hardening tab, which in the roof cleaning elaborate form of transport of filling the gap, to which is attached the trunk of filling the pipeline (As of the USSR №376584, MKI: E21F 15/08, publ. 05.04.1973, BI No. 17).

This method cannot be applied when the tab with a high degree of filling shall be inaccessible space and excavation has a mount, which for technical reasons cannot be broken.

The technical result of the invention is to increase the completeness of the filling designed the aqueous space on hard to reach areas.

This technical result is achieved in that in the method of hydraulic bookmarks longest single workings, including the construction of retaining and filtering jumpers, installation of the pipeline, the flow of filling of the pulp, in which the underlying space is performed via slurry pipeline with holes in its bottom part attached to the roof framing on its entire length, and draining the water passes through the drain holes in the jumper installed on the side opposite the supply of pulp. Holes in the initial part of the pipeline provided with flap valves, and in the development of a number of filtering thresholds.

The method is illustrated in the drawings, in which figure 1 shows a flow chart of bookmarks production, as in figure 2 - scheme of the flap valve.

On the drawings: 1 - roof laying generation; 2 - slurry pipeline; 3 - holes in the pipeline; 4 - restraint jumper; 5 - filter jumper; 6 - outlet; 7 - filling the array; 8 - petal valve; 9 - filter thresholds; 10 - filtration material.

The method is implemented as follows.

To the roof laying generation 1 attach the pipeline 2 with holes 3 pointing downwards (figure 1). At the end of the production set jumpers holding 4. In the jumper installed from the sides of the, the opposite connected with pulp, mount the drain hole. The slurry in the slurry pipeline serves groundwater pump from the mixer. By feeding the pulp it through a few holes 3 follows from the pipeline 2. Solid particles of the slurry are deposited, forming filling the array 7, and the water flows to the filter jumper 5 on the output. As reclamation fill array 7 which overlaps the hole 3 and the slurry begins to flow from the following holes. So is the generation tab along its entire length. The size of the holes is prescribed such that the slurry pipeline retained sufficient strength to resist loads from the pressure of the pulp.

During transportation of the pulp through the holes closed filling the array can occur infiltration of water in the backfill array, which increases the concentration of solids in the pulp and resistance to its movement in the pipeline. In case of considerable length may be a blockage of the pipeline.

In order to reduce infiltration in the initial part of the pipeline into the holes install the flap valve 8, which do not prevent the release of pulp, but when reaching the backfill array 7 3 holes close it. This significantly reduces the infiltration of water in the backfill array, thereby avoiding the clogging of the pulp line 2 (figure 2).

If backfill material contains m is lkie particles (less than 0.05 mm), these particles can be carried out with water and accumulate in the filter jumpers 5, forming an array with negligible permeability. Because of the small coefficient filtering timely yield becomes impossible and the process of bookmarks is broken. This disadvantage is eliminated by setting put in the development of a number of filtering thresholds 9, in which at least bookmark develop accumulate fine particles, the water is clarified and is timely return of pure water, i.e. small particles of delay in laying the installation space in laying the development of a number of filtering thresholds.

The use of the proposed method hydraulic bookmarks longest single openings can improve the completeness of the filling out space on hard to reach areas and to ensure its continuous bookmark with little additional work.

1. Way hydraulic bookmarks longest single workings, including the construction of retaining and filtering jumpers, installation of the pipeline, the supply of backfill slurry and draining of the water through the drain holes in the jumper installed on the side opposite the inlet pulp, characterized in that the supply of backfill slurry in the underlying space is performed via slurry pipeline with oversteamed bottom attached to the roof framing on its entire length, with holes in the initial part of the pipeline provided with flap valves.

2. The method according to claim 1, characterized in that the formulation has a number of filtering thresholds.



 

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