SU1691458A1 - Method for combined storage of stripping muck and concentration wastes - Google Patents

Abstract

The invention relates to the mining industry and m. used in joint storage of rocks and enrichment wastes. The purpose of the invention is to increase the storage capacity of the storage facility by increasing the density of rock laying by squeezing water while ensuring storage stability and storage safety for the environment. Prepare the base of the store, shield the base. A layer of rock is poured onto the base and an enrichment waste pulp is fed onto it, the specified layer of rock is clogged, and a supporting dam and pioneer embankments are erected along the storage contour along the contour of the storage. The supporting mounds are formed before joining them to the supporting dam. The dam and pioneer mounds are formed by layered dumping. Each layer of rocks dumped into the dam B is clogged up, the rocks formed by embankments and dams are covered with layers, each layer is routed with a pulp of waste, and in the areas adjacent to the embankment to the latter forms unsoldered areas. limits as the deposit is filled A layer of rock in the base, the upper part of each layer of the supporting dam and the stored rocks are clogged with a pulp of finely-dispersed enrichment the formation of space on the design height raised on the specified rocks following the supporting dam. 3 hp ff, 16 ill. CO with S Yu Ј el 00

Description

The invention relates to the mining industry and can be used in the joint storage of rocks and enrichment waste.

The purpose of the invention is to increase the storage capacity of the storage facility by increasing the density of rock laying by squeezing out water while ensuring storage stability and safe storage for the environment.

Figure 1 shows the formation of excavations in sediments; 2 — filling of the excavation with rocky overburden rocks; FIG. 3 — clogging of voids in the excavation rocks by tails and fine tails; FIG. 4 is the same. final stage on

5 — dumping of overburden over the entire storage area; 6 - the same, the final stage of dumping; Fig. 7 shows the clogging of voids in the bedded rocks with fine-dispersed tails; in Fig.8 - the creation of the supporting dam and pioneer embankments; Fig. 9 shows the clogging of voids in the rocks of the dike with tailings; figure 10 - place adjoining pioneer embankments to the supporting dam; figure 11 is the same, the section aa in figure 10; on Fig - laying of overburden in the tank and clogging voids in them; in fig. 13 — colmatage of voids in the rocks of the pioneer embankment and windows, section BB in FIG. 12; Fig. 14 shows the order of laying and clogging of voids in the rocks laid in the tank, section B-B in Fig. 12; Fig. 15 shows the final stage of laying and olmatisation of psgot p rocks at the primary design mark; on Fig - building reference dam and pioneer embankments. The method is carried out as follows.

The contours of the future support dam are drawn along the boundary of the future tailings and sediments 1 are removed to these depths H, for example, by an excavator 2, which are laid out on the outside of the formed recess 3 (Fig. 1) in order to use them later. The resulting recess 3 is filled with rock overburden 4 (FIG. 2) filled, for example, by road 5, and the voids 6 formed between the particles 4 are filled with ore tailings 7 (collet routers) by feeding thickened pulp 8 through the pulp outlet 9 of the distribution pulp line 10 (FIG. 3), while in the recess 3, voids 6 in the lower and upper parts of the stored rocks 4 are colmarted with fine tails 11 with anti-filtration properties (Fig. 4), which are selected through the nozzle 12 by diverting ulps 13 from the upper part of the distributing slurry pipeline 10 or directly from the settling pond (not shown) form anti-filtration screens 14. Preferably, all voids between rocks should be ground with this type of tailings, which will completely eliminate the ingress of water from the sediments under the repository and ensure its stability, as well as eliminate the possibility of deformation of the supporting dam erected over the rocks laid in the recess 3. The water released from the tailings during the copulation is removed by mobile pumps from temporary primers formed in a recess (not shown) and

return to the factory for reuse.

After the recess 3 has been filled, the rocks 4 are filled with a layer 15 of a given height S, which is taken from the condition of excluding the penetration of water released from the tailings, into the soil of the storage (Fig.5, 6). To the overburden poured in by the bulldozer 16 at 0, pumps 1 are moved to the height S of the bed of bedded rocks (FIG. 5, 7). This is done so that during clogging of the voids in the poured layer 15, the pulp does not flow out of the storage. Scattered throughout the area

5, the rocks are clogged with fine tails 11 (Fig. 7), forming a screen 14 (Fig. 8). Then, over a recess 3 filled with rocky overburden rocks and enrichment tailings of rocky

0 overburden rocks, erected a supporting dam 17, and over the storage area — pioneer embankments 18, laying the rocks with layers 19 to a height of hi, h2, etc. (Fig.9). As the height of the supporting dam is raised to a predetermined height 17

5 in the laid layers 19 of the rock, voids are clogged by the tails 7, leaving undetected patches (windows) 20 in places adjacent to the dam 17 of the pioneer embankments 18 (Figures 10, 11). This is done to allow unimpeded removal of water 22 to the drainage collector 21, separated from the stored tailings of the water-processing system of the enrichment factory. At this dam, the upper part of the rocks of each layer 19 is clogged with fine tails, forming a screen 14 (Fig. 9). In the tank 23, formed between the dam and the pioneer mounds, and between the pioneer mounds, rock is laid

0 overburden 4 and clog up the voids in them to the height hi of the stacked layer 19 (FIG. 12) with tails 7, and the voids in the rocks of the upper part of the layer 19 are clogged with fine tails 11, forming the screen

5 14. The water released from the tailings is diverted to the non-acclimated part of the pioneer embankment 18 beyond the limits of the storage (not shown). On the first kolmat layer 19, a second layer is laid.

0 overburden rocks at a height of r and are also clogged with tailings 7, and the voids between the particles of rocks in the upper part of the layer are clogged with fine tails 11.

5 Simultaneously with dumping in the tanks of the second layer of overburden, they start mudding down the rocks of the pioneer embankments and windows to the height hi of the first closed layer 19 and captured part of the second layer, as shown in Fig. 12.

those. the clogging operation in the pioneer mounds and windows takes place one layer behind the clogging operation of the rocks laid in the tank. Rocks in the pioneer mounds and windows of the supporting dam are clogged with tails 7 with some rise 24 in the direction of the supporting dam (Figs. 12, 13). This is done so that the flow rate of water in the pioneer dam is minimal and there is no removal of tailings by water 22 beyond the limits of the storage.

The operations of dumping rock layers and clogging voids in them alternate in such a way that rocks are dumped on one map 25, on the other 26 - sanding of voids in the dumped rocks, on the third 27 - dumping, etc. (Fig. 14) until reaching the design level of the supporting dam and pioneer embankments (Fig. 15). After that, the supporting dam 17 and the pioneer embankments 18 of rock overburden 4 (Fig. 16) are increased, and all operations are repeated until the storage reaches the final design level.

The supporting dam and pioneer embankments can be erected immediately to the full design height, or it is possible to build them up a little ahead, for example, one or two layers in relation to the rocks laid between these structures,

PRI me R. In the area adjacent to the YuGOK tailing dump with an area of 5 hectares, the sediment is excavated to a depth of 3 m, 10 m wide and filled with rock overburden from the YuGOK open pit. Voids in the lower layer of rocks are clogged to a height of 1 m with fine tails with a particle diameter of 1 μm Dm Yumk. Then, at a height of 2 m, rocks are clogged with tails with a particle diameter from 1 mm to 1 micron. Over the entire storage area, overburden rocks are poured to a height of 1 m and clogged with fine tails. A support dam was erected, its base width was 10 m, height 10 m, and 4 pioneer dams were erected at a distance of 100 m from each other to a height of 10 m. The voids in the support dam clog with tails with a particle diameter of 1 mm to 1 micron, no windows. The pulp is served with a solid-to-liquid ratio (T: W) equal to 1: 3, and a pulp with fine tails is fed with a T: W ratio of 1: 1. The pulp with fine tails is taken from the settling pond and the house is fed to the place of cloaking.

For clogging of voids in rocky overburden rocks, their total volume was 35%, after clogging with tails, the total volume of voids was about 3%

The use of the proposed method will save up to 30% of land for storage of overburden and tailings, eliminate environmental pollution and ensure the stability of the storage.

Claims (4)

1. The method of joint storage of overburden and enrichment waste, including preparation of the storage base, erection of a supporting dam of rock overburden along its contour, shielding it by clogging the rocks with pulp of enrichment tailings, filling the formed space with waste to the design height, building up the storage, about l and due to the fact that, in order to increase the receiving capacity of the storage by increasing the density of laying rocks by squeezing water while ensuring the stability of the storage and safe for storage for the environment, the dump base is shielded by laying a layer of rock and clogging it with a pulp of waste; a supporting dam and pioneer embankments are erected on the layer and the rock overburden is formed into the spaces formed by layers each layer is clogged with pulp of tailings, the water is drained outside the storage as it is filled, and after filling the formed space with rock overburden and enrichment waste, it is raised with eduyuschuyu supporting dam on said rocks and the operation is repeated in similar order. 2. A method according to claim 1, characterized in that the supporting dam and pioneer embankments are formed in layers. 3. The method according to claim 1, 2, about tl and h ay y and y, so that in places adjacent to the pioneer embankments to the supporting dam in the latter form unsoldered sites. 4. The method according to claim 1 and 2, that is, so that the rock layer at the base of the repository, the upper part of each layer of the supporting dam and the rocks stored in the developed space are clogged with pulp fine enrichment tailings.  ///// ff /  / ff / f / f ///  6 /// L7 ti ij i ..-. r ff y jjjjjjjp v /// f / 14 sixteen yy- yffyw /////// Fm.5 Schig.1 15 /// /// FIG. 2 stg yu Fig.Z 11 13 12  $  m / v // A; - ..;:;. ;;;.:.: m w //// l№ fig ft one No.Ј & No. /// /// with y t ABOUT) with Nh / 14 Ltd. Ocv i. r. &. O.P. about . . D VO. ; .. A eleven BUT 7 / # /; f f5 / ..  ABOUT . about: . - oh oh. - Plo - o (o- -6-. O-.to - .. P: b: Q /. P. .6-o. O.c.-oo ..o.o.-... : t: ootr. (P / n.Q-l.o. W / 1 --Q : ov QL . FIG. 15 P in-in nineteen uri o about a Ltd about i; d I-TIL. And t i P G ff I I I.. (y /: & -Y FIG. / J  /////. //////////////// FIG. 14 FIG. 15 ; P..Qo0o. ° i about. -8I. %:. about . g-, g.o ha R- . tJ V: :: & 0 a- -o -.o .; .about . ./