The method of mining tailings

 

(57) Abstract:

The invention relates to mining and can be used for developing low-power and strong technological fields, in particular for the recovery of valuable components of rare and precious metals from old, reclaimed tailings. The method is characterized by the fact that the size of the tailings storage facility is divided into mining blocks in the center are using earthmoving equipment (dragline) pass a trench therein for transportation of minerals is set belt conveyor, and for drilling horizontal wells in the array is used auger installation, located on a platform that is moved along the frame of the conveyor belt. Transportation separated from the array of minerals produced by the auger to the wellhead, where drilling fines fed to the belt conveyor for further transport to the treatment plant. The use of the proposed method will provide a more rational use of waste reservoir and significantly increase the efficiency of extraction of useful components, rare and precious metals, man-made deposits of old when designing low-power and strong technological fields, in particular for the recovery of valuable components of rare and precious metals from old, reclaimed tailings.

There is a method of developing a tailings [and.with. N 1642016, ál. 5 E 21 C 41/32, publ. BI N 14, 88]. It lies in the fact that the tails are processed direct the course of the excavator when developing layers from top to bottom with loading their vehicles and transportation outside TMF.

However, the known method has the disadvantages associated with the fact that the tailings are processed gross way, not allowing to selectively extract only the rich layer of useful components that require additional costs for mining and ore processing.

The task of the invention is to increase efficiency by selective extraction of valuable components of rare and noble metals technological fields, in particular, from old, reclaimed tailings.

This object is achieved in that in the method of mining tailings, consisting in passing the trench, forming the bottom of the trench and testing tails on both sides of the trenches, loading and transporting them outside the tailings area hostage layers, where are drilling horizontal wells, leaving between them pillars, and ore from the interlayer move to the wellhead, where the overload on the belt conveyor for further transport to the treatment plant.

The essence of the invention is illustrated in the following description and the accompanying drawings, in which Fig. 1 shows a cross-section of the tailings along B-B of Fig. 2 is a plan section a - a of Fig. 1.

1 - excavation blocks;

2 - the trench;

3 - belt conveyor;

4 - auger installation;

5 - waste rock;

6 - interlayer, enriched useful component;

7 - miodowy pillars;

8 - wells.

The proposed method is as follows. The tailings area is divided into excavation units 1, center them using earthmoving equipment (dragline) are the trench 2 with the formation of its bottom below enriched layers, in which is mounted a conveyor belt 3 for transportation of minerals. For drilling horizontal wells 8 in the array is used auger installation 4 placed on the platform, movable on the frame of the conveyor belt 3. Transportrecht arrives on the conveyor belt 3 for further transportation to the beneficiation plant. The breaking of conduct simultaneously from both sides of the trench. Between parallel drilled horizontal wells 8 provides for the abandonment of the pillar 7, which will give the opportunity to seize mineral without clamp auger installation 4. Under the action of rock pressure miodowy the 7 pillars will collapse, and the overlying rocks smoothly descend, filling the mined-out area.

The use of the proposed method will provide a more rational use of waste reservoir and significantly increase the efficiency of extraction of valuable mineral components of rare and noble metals technogenic deposits from old, reclaimed tailings.

The method of mining tailings, consisting in passing the trench, forming the bottom of the trench and testing tails on both sides of the trenches, loading and transport them outside of the tailings, characterized in that the size of the tailings storage facility is divided into mining blocks in the center of the trench and the bottom of trenches issue below enriched layers, which are drilling horizontal wells, leaving between them pillars, and ore from the interlayer petitely factory.

 

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