RU2558051C1 - Method of open development of deposits of solid mineral resources - Google Patents

Abstract

FIELD: mining operations.

SUBSTANCE: invention relates to the mining industry and can be used in stripping and mining operations at the fields, composed of dense and semi-hard rocks, with use of boom surface miners, spreaders and other mining machines. The method comprises continuous extraction and direct overburden waste disposal, continuous extraction, transportation, sorting of mineral resources. The front of mining operations is located along the short axis of the career field, the continuous working of overburden bench of high altitude is performed simultaneously on two sub-benches using boom surface miners. The overburden on the conveyors of the boom surface miners is fed through the receiving devices to the conveyors of the loading consoles of the spreader. The process of combining the conveyors of the boom surface miners with the receiving devices of the loading consoles and positioning of the spreader relative the boom surface miners is provided by the automatic control system. The mining operations are carried out with the use of excavating milling machine, the mineral resources are fed by the loader to the hopper of the mobile reloading unit with a conveyor and then to the mobile-sorting unit.

EFFECT: increase of the productivity of mining operations in the development of deep deposits of mineral resources composed of dense and semi-hard rocks.

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Description

The invention relates to the mining industry and can be used when performing overburden and mining operations in deposits composed of dense and semi-rock, using boom mining combines, dump formers and other mining machines.

There is a method of mining waterlogged placers, including the opening, mining of minerals on the front of mining with subsequent dumping of overburden in the worked out space [1].

The disadvantages of this method are the low productivity of mining operations in connection with the use of mining equipment of cyclic action, while the equipment used does not allow the development of deposits composed of dense and half rock formations without preliminary softening.

There is a known method of development based on a two-way excavation scheme with a change in the standing horizon of a spreader [2]. In this scheme, a bucket wheel excavator sequentially fulfills two or three sub-steps, while the dumping agent is sequentially installed on the roof and soil of the deposit and prevented or on the intermediate overburden horizon, the roof of the deposit and prevented.

The disadvantages of this method are the need for rearrangement of a rotary excavator and a spreader, reducing the productivity of the complex of mining equipment, and the limitation of the developed rocks for strength.

The closest in technical and technological essence is the method of open-pit mining of coal deposits, including continuous excavation and non-transport dumping of overburden, mining, moving, loading minerals directly with an excavator during its continuous operation, sorting and packing of minerals [3].

This method is applicable for the development of shallow mineral deposits, composed of rocks of low strength.

The technical result consists in increasing the productivity of mining during the development of deep mineral deposits composed of dense and semi-rock formations.

The technical result is achieved by the fact that in the method of open development of solid mineral deposits, including continuous excavation and transport-free dumping of overburden into a mined space using a spreader, continuous mining, moving, loading, supplying minerals to a mobile sorting unit, sorting minerals, front mining operations is located along the short axis of the quarry field, while continuous overburden mining is large heights are carried out simultaneously on two sub-steps using boom mining combines, and overburden is conveyed via boom mining conveyors via receiving devices to conveyors of the loading consoles of the dumping unit, then it is successively moved to the loading bunker, feeder and through the unloading console to the internal dump, while the loading consoles spreaders have the ability to independently move in space, and the process of combining conveyors boom career combines with receiving devices of the loading consoles of the spreader and the positioning of the spreader relative to the jib miners is provided by an automatic control system that includes control sensors installed on the loading consoles and a system process control unit mounted on the frame of the spreader, while mining is carried out using earthmoving the milling machine, and the mineral is fed by the loader to the hopper of the mobile reloading about the unit with the conveyor and then through the conveyor to the mobile sorting unit mounted on the day surface.

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 essence of the proposed method for open development of solid mineral deposits is illustrated by drawings.

In FIG. 1 is a diagram of development of a solid mineral deposit; in FIG. 2 is a plan view of FIG. one.

The method of open development of solid mineral deposits is as follows.

Continuous excavation and non-transport dumping of overburden 1 into a mined-out space 2 is carried out by means of a dumping machine 3, continuous extraction, moving, loading, supply of mineral 4 to the mobile sorting unit 5, mineral sorting. The mining front 6 is located along the short axis 7 of the quarry field 8. Continuous mining of the overburden ledge 9 of high height is carried out simultaneously on two sub-stages 10 and 11 using boom quarry combines 12 and 13. The overburden 1 along conveyors 14, 15 boom quarry combines 12 , 13 is fed through receiving devices 16, 17 to the conveyors of the loading consoles 18, 19 of the spreader 3. The overburden is sequentially moved to the transfer hopper 20, the feeder 21 and through the discharge console 22 to the inside dump 23. The loading consoles 18, 19 of the spreader 3 have the ability to independently move in space. The process of combining the conveyors 14, 15 of the jib miners 12, 13 with the receiving devices 16, 17 of the loading consoles 18, 19 of the spreader 3 and the positioning of the spreader 3 relative to the jib miners 12, 13 is provided by an automatic control system 24, including control sensors 25 and 26 installed on the loading consoles 18, 19, and the process control system unit 27 mounted on the frame 28 of the spreader 3. Mining operations of the mineral 4 are carried out using earth-milling machines 29. Destroyed minerals 4 is supplied to the hopper loader 30, mobile handling unit 31, 32. By means of the conveyor 33 is supplied to fossil Useful mobile-sorting machine 5 mounted on the surface 34.

The method improves productivity when performing overburden and mining operations on solid mineral deposits composed of dense and semi-solid rocks, with the use of boom mining combines, a spreader, earthmoving and milling machines, loaders and other mining equipment.

Information sources

1. RF patent No. 20111826 dated 04/30/1994. A method for developing waterlogged placers.

2. Rzhevsky V.V. Open cast mining. Textbook for high schools. In 2 parts. Part 2. Technologies and complex mechanization. - 4th ed., Revised. and add. - M .: Nedra, 1985 .-- S. 235, Fig. 7.5.

3. RF patent No. 2078928 dated 05/10/1997. The method of open development of coal deposits.

Claims (1)

The method of open development of solid mineral deposits, including continuous excavation and non-transport dumping of overburden into a mined space by means of a dumping machine, continuous excavation, moving, loading, supplying minerals to a mobile sorting unit, sorting minerals, characterized in that the mining front located along the short axis of the quarry field, while continuous mining overburden ledge of great height is carried out simultaneously This is done on two sub-steps using boom pit combines, and overburden is conveyed via boom pit conveyors via receiving devices to conveyors of the loading consoles of the dumping unit, then sequentially moves to the reloading hopper, feeder and through the unloading console to the internal dump, while the loading consoles of the dumping unit have the possibility of independent movement in space, and the process of combining conveyors boom mining combines with receiving equipment with the triplets of the loading consoles of the spreader and the positioning of the spreader relative to the jib miners is provided by an automatic control system that includes control sensors installed on the loading consoles and a system process control unit mounted on the frame of the spreader, while mining of minerals is carried out using an earth-milling machine, and the mineral is fed by a loader to the hopper of a mobile reloading unit with a conveyor followed by a mobile conveyor and screening unit mounted on the surface.

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