RU2325532C1 - Geotechnological complex for gold dredging and placer mining - Google Patents

Abstract

FIELD: mining industry.

SUBSTANCE: said geotechnological complex for gold dredging and placer mining incorporates a module for preliminary disintegration and hydroerosion of rock in the face with guiding shields, a disintegrating module located below the level of grooved trench for rock hydraulic transportation, a processing complex with hydrotransportation systems and waste dumping system. The disintegrating module has a chute located inside the closed loop of trench for disintegrated rock accumulation. The chute is directed along the rock inflow for rock hydrotransportation and is sloped in the direction of waste dumping. Along the chute and over it, a rigidly supported trestle is installed. The trestle is provided with a bucket driven along the cross beam for rock disintegration. On both sides of the chute, at an angle, transverse flaring chutes with rigidly wall-mounted disintegrators are installed.

EFFECT: improved efficiency of mining due to intensification of disintegration of rock with complex physical and mechanical properties during dredging and placer mining.

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Description

The invention relates to mining and is intended for the open development of alluvial deposits.

There is a method of developing placers with a stationary tower excavator, the machine tower of which was installed on the foundation and strengthened by extensions. The bucket was moved to feed the rock for processing by a double-drum winch / 1 /.

This method does not provide effective preparation of rocks of increased strength and clay content for processing and cannot be used at sites with complex physical and mechanical characteristics.

Known methods for open mining of minerals using pelleting equipment / 2 /.

These methods are not suitable for large boulders, strong cementation of the rock and for highly plastic clays.

A known hydraulic method of developing placers, including the preliminary preparation of the rutted ditch, mechanical destruction and hydraulic erosion of the rock in the face, forcing and directing the rock into the rutted ditch, pressure-free transportation of the rock with its free soaking during transportation / 3 /.

This method is not effective in the development of cemented rock or rocks with increased ductility.

The closest in technical essence are geotechnological complexes with multi-stage disintegration, including a preliminary mechanical or hydraulic loosening module, a disintegration module, installed below the non-pressure hydrotransport system for washed rock, transportation system, dump system, processing complex / 4, 5, 6 /.

These complexes have increased labor intensity during operation and are less effective in the processing of rocks with a high content of limestone and sandstone.

The technical result is an increase in the efficiency of mining by intensifying the process of destruction of rocks with complex physical and mechanical properties in the development of placers.

The technical result is achieved by the fact that in the geotechnological complex for the development of gold placers, including a module for preliminary mechanical destruction and hydraulic washing of the rock in the face with guiding shields, a disintegration module located below the level of the dredged ditch for hydrotransporting the rock, a processing complex with hydrotransport systems and a waste rock dumping system , the disintegration module is equipped with a groove located inside the loop circuit of the closed ditch for accumulation disintegrated rock and oriented along the flow of rock from the ditch for hydrotransporting the rock with an inclination towards unloading the empty rock, the trough is equipped with a flyover installed along it and rigidly fixed on the supports with a bucket for disintegrating the rock moving on the crossbar drive, the bucket is mounted with the ability to move and turning in a vertical plane and provided with slots, on both sides of the trough, at an angle to the sides of it, expanding transverse troughs with desi are installed with integrators rigidly fixed on its walls, while the transverse grooves are mated with a closed ditch made with an inclination towards the hydrotransport system, and walls with slots of a given size are installed between the groove and the transverse grooves.

The possibility of forming the required sequence of actions by the proposed means allows us to solve the problem, determines the novelty, industrial applicability and inventive step of development.

The geotechnological complex for the development of gold-bearing placers is shown in the drawings.

Figure 1 - General view of the technological complex; figure 2 is a view of figure 1; figure 3 is a section bB in figure 1; figure 4 is a section bb in figure 1, shows the walls with slots located between the groove and the transverse grooves on both sides; figure 5 is a section GG in figure 1, shows the disintegrators mounted on the walls of the transverse grooves; figure 6 - bucket for disintegration of the rock.

The geotechnological complex for the development of gold-bearing placers contains module 1 of preliminary mechanical destruction and hydraulic erosion of the rock in the face 2 with guiding shields 3, a disintegration module 4, located below the level of the ditch 5 for hydrotransporting the rock, a processing complex 6 with hydrotransport systems 7 and a waste rock dumping system 8. The disintegration module 4 is equipped with a groove 9 located inside the contour of the closed ditch 10 for accumulating disintegrated rock and oriented along the flow of the rock from the ditch 5 for hydrotransporting the rock with a slope 11 towards the discharge zone of the empty rock 12. Along the gutter 9 and above it is mounted and rigidly fixed on the supports 13 of the overpass 14 with a bucket 17 for disintegrating the rock moving through the drive 15 on the cross member 16 of the overpass 14. The bucket 17 is mounted to move and rotate in a vertical plane 18 and is provided with slots 19. On both sides of the groove 9, at an angle of 20 to its sides, expanding transverse grooves 21 are installed with disintegrators 22 rigidly fixed to its walls 23. Cross grooves 21 mate with a closed ditch 10, made with a slope 24 towards the hydraulic transport system 7. Between the groove 9 and the transverse grooves 21 there are walls 25 with slots 26 of a given size. The bucket 17 performs the function of a waste rock dumping system 8.

The geotechnological complex for the development of gold-bearing placers works as follows.

Preliminary preparation of the ditch 5 for hydrotransportation, the module of disintegration 4 and the contour of the closed ditch 10 for the accumulation of disintegrated rock. The disintegration module 4 is located below the level of the ditch 5 for hydrotransport, and the ditch 10 is located below the bottom of the gutter 9. The gutter 9 at the junctions with the ditch 5 for hydrotransport and the unloading zone 12 covers the closed ditch 10 for the accumulation of disintegrated rock and is made with a slope 11 in the direction of the unloading rock discharge zone 12. Preliminary mechanical destruction and hydraulic washing of the rock in the face 2 of module 1 are carried out, the rock is blown out and directed into the ditch 5 using guide shields 3. On the ditch 5 o uschestvlyaetsya depressurized Hydrotransportation breed. With the receipt of the rock in the chute 9 of the disintegration module 4 and filling it to a certain level, the bucket 17 with the help of the drive 15 moves on the cross member 16 of the flyover 14, rigidly fixed on the supports 13, to its original position and lowers in the vertical plane 18. By means of the drive 28, the bucket 17, performing the function of waste rock dumping system 8 and disintegration, captures the rock and begins to move along the chute 9 to the waste rock unloading zone 12. Using the drive 27, the bucket 17 is lifted and the rock is disintegrated through slots 19. the rock is unloaded in the unloading rock discharge zone 12. As the rock is destroyed in the gutter 9, through the slots 26 of the walls 25, the rock with pulp enters the expanding transverse gutters 21 installed with an inclination 20 to the sides of the gutter 9. Using disintegrators 22, rigidly fixed to walls 23, there is an additional destruction of the rock and its entry into the closed ditch 10. Due to the slope of the 24 ditches 10, the pulp accumulates from the side of the hydrotransport system 7 and is fed to the processing complex 6.

The geotechnological complex for the development of gold-bearing placers increases the efficiency of mining by intensifying the destruction process and preparing the rock for further processing.

Information sources

1. Shorokhov S.M. Technology and comprehensive mechanization of placer mining. Ed. 2nd rev. and add. M., Nedra, 1973, p. 258, fig. 80.

2. Handbook for the development of placers. Under the general editorship of V.P. Berezin, V.G. Leshkov, L.P. Matsuev, S.V. Potemkin. M., Nedra, 1973, p. 177, Fig. 39.

3. Handbook for the development of placers. Under the general editorship of V.P. Berezin, V.G. Peshkov, L.P. Matsuev, S.V. Potemkin. M., Nedra, 1973, p. 347, Fig. 94.

4. Khrunina N.P., Mamaev Yu.A. and others. Geotechnological complex with multi-stage disintegration: Patent RU 2209678, IPC V03V 5/00, E21C 41/26, 08/10/03, Bull. Number 22. (prototype).

5. Khrunina NP, Mamaev Yu.A. and others. Geotechnological complex with multi-stage disintegration: Patent RU 2209974, IPC E21C 41/30, V03V 5/00, 08/10/03, Bull. Number 22. (prototype).

6. Khrunina N.P. Geotechnological complex with multi-stage disintegration: Patent RU 2206403, IPC V03V 5/00, Е21С 41/26, 06.20.03, Bull. Number 27. (prototype).

Claims (1)

A geotechnological complex for the development of gold-bearing placers, including a module for preliminary mechanical destruction and hydraulic washing of the rock in the face with guiding shields, a disintegration module located below the level of the dredged ditch for hydrotransporting the rock, a processing complex with hydrotransport systems and a waste rock dumping system, characterized in that the disintegration module equipped with a groove located inside the contour of a closed ditch for the accumulation of disintegrated pores and oriented along the flow of rock from the ditch for hydrotransporting the rock with an inclination towards unloading the empty rock, the gutter is equipped with a flyover installed along it and rigidly fixed on the supports with a bucket for disintegrating the rock moving on the crossbar across the flyover, the bucket is installed with the possibility of moving and turning in the vertical plane and provided with slots, on both sides of the trough, at an angle to the sides of it, expanding transverse troughs with disintegrators are installed, rigidly closed replicated on its walls, while the transverse grooves mate with a closed ditch made with an inclination towards the hydrotransport system, and walls with slots of a given size are installed between the groove and the transverse grooves.

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