SU1511391A1 - Method of open-cast mining of mineral deposits - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to mining and is intended for the development of powerful multi-shaped coal seams. The goal is to increase the productivity of work in the development of multi-shaped deposits with a capacity of 1.3–1.5 optimum digging height. To do this, a transport horizon is cut in the body of the reservoir, the section of the reservoir is divided into two ledges of unequal height. The upper ledge form the optimum height, and the lower ledge work out ahead of time relative to the upper ledge. The shoulders work out two identical complexes of rotary excavators with conveyor transport and downhole loading crane. After the completion of the development of the lower ledge, the rotor excavator is moved to the upper ledge and it is worked off with its opposite faces, ensuring their work independent of each other. Repulsed rock mass is transferred to a common downhole conveyor by a bottomhole loader.

Description

The invention relates to mining and is intended for the development of powerful, multi-shaped coal seams.

The purpose of the invention is to increase the productivity of work in the development of multi-shaped deposits of the Mash-Gul. of 1.3–1.5 optimum digging height.,

Method cG is carried out as follows.

In the body of the reservoir, a transport horizon is cut, the section of the reservoir is divided into two ledges of unequal height. The upper slug form the optimum height of the scoop, and the lower 0.3-0.5 of the optimum scoop height. The ridges are made with two identical complexes of rotary excavators with conveyor transport and downhole overloading. Common bottomhole conveyor mounted on the roof of the lower ledge. The overburden of the broken rock mass is transferred from the lower ledge to the common bottomhole conveyor by means of a bottomhole reloader. The lower ledge has a lower height and, therefore, it is worked out ahead of time with respect to the upper ledge. After working out the lower ledge, move the rotary excavator to the upper ledge and start moving around the upper ledge from the end of the quarry towards the excavator, reflect

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batting upper ledge, i.e. counterholes, ensuring their independent operation, with both excavators working I at the optimum digging height.

Fo: rmula invention

Method for open development of mineral deposits, including the mining of two benches by two complexes of rotary excavators with a pile carrier and a bottomhole loader, transshipment of broken rock from the lower ledge to a common bottomhole conveyor, installed

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on the roof of the lower ledge, and its transportation, characterized in that, with the aim of increasing the productivity of work when developing multi-shaped deposits with a capacity of 1.3-1.5 optimum digging height, the upper scarp forms the optimum digging height, the lower

the ledge is worked out ahead of time relative to the upper ledge, the broken rock mass is transferred to the common bottomhole conveyor by a downhole overdrive, and after the completion of the lower ledge is completed, the rotary excavator is moved to the upper ledge and work it off.

Claims (1)

Claim A method for open-pit mining of mineral deposits, including the development of two benches by two complexes of bucket wheel excavators and a conveyor belt and a face reloader, overloading the broken rock, 5 rock mass from the lower ledge to a common bottom conveyor, mounted ⁴ on the roof of the lower ledge, and its transportation, which differs that, in order to increase the productivity of work during the development of mold-like deposits with a capacity of 1.3-1.5 optimal scooping heights, the upper ledge is formed of the optimal scoop height I, the lower ledge is worked out ahead of time relative to the upper ledge, the broken rock mass is transferred to the downhole conveyor by the downhole transferr, after the end of the mining of the lower ledge, the bucket-wheel excavator is moved to the upper ledge and worked off with the oncoming faces.