SU1390360A1 - Method of mining mineral deposits - Google Patents

Abstract

The invention relates to the mining industry and m. used in the extraction of solid minerals. The goal is to increase the efficiency of development of extended deposits by intensifying mining and reducing operating costs. The development of a deposit is started from the flank by the formation of an inclined exit (NS) 1. Extraction of the mineral (PI) is carried out by descending horizontal layers 2 from flank to flank. The upper part of the reservoir is processed in the direction from the HC 1 layers formed as the layers are developed to the lift excavation (MF) 3 formed on the flank with the lift of the recoverable UI. After construction of the entire complex PW 3 on the flank and its connection with HC 1, they start working on part of the reservoir under HC 1 in the opposite direction with the delivery of people and the recoverable U down to PS 3 through the main conveyor HC 1. the space developed by hardening mixtures is subsequently extinguished. In the pledged space on the opposite flank, PV 4 is formed. After the HC 1 is completely redeemed, the operations are repeated, measuring the formation direction of the next HC and alternating the lift of the extracted PI along the flanking PV, 2 Il. (L co; o o co 5

Description

I The invention relates to the mining industry and can be used in the extraction of solid useful and explosive

The aim of the invention is to increase the efficiency of development of heavy deposits by intensifying mining and reducing operating costs.

Fig. 1 shows a projection of the deposit being worked along a strike on a vertical plane; FIG. 2 -: A-C cut in FIG. one.

The development of a deposit is started from the flank by the formation of an inclined exit 1 at an angle, which will allow the use of the main delivery conveyor and the delivery of people.

Extraction of mineral resources is carried out in horizontal layers 2 at an angle (to completely fill the bookmark) and in height, which ensures effective working out and safety of work, depending on the mining and engineering conditions of the development. Depending on the thickness of the deposit, the mining is performed by interchanges. Depending on the fortress, blasting of the useful mineral in the stoppers is carried out either by sinking-mining complexes (such as Ural-20KSA) or by drilling and blasting. In the case of the blasting-blasting method of blasting, wells are used that are drilled and blown up in accordance with the conditions of development. The loading and delivery of the mineral in the steps to the main conveyor is carried out either by bottomhole conveyors or by loading machines of type PDM-8, PDM-12 having an effective radius of delivery. As the working layer is developed, a hardening tab is laid in which a channel is formed with the help of a sliding form: for ventilation, delivery of backfill material, equipment, human walkers, etc. On the opposite flank of the deposit, a channel is formed for the raised working in the recumbent side deposits. The laying with hardening mixtures is carried out through pipelines from a filling complex located on the surface or on the active horizon.

After working the first layer of the reservoir to the opposite flank, all of its thickness begins to build a surface complex: the mouth

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new lifting machines, fans, unloading devices, etc. On the current horizon, the horizon is cut to its full capacity for this.

Then proceed to the formation of an inclined congress under the artificially created roof of the first layer to open the second and subsequent layers of work. Work on the extraction of minerals on the second and subsequent layers, laying down the worked-out space, forming various channels in the pledged space is carried out by analogy with the operations of the overlying working layer. The recovery of the extracted mineral and people is carried out through the main conveyor of the inclined ramp up to the surface. Or to the acting horizon. As the mineral is dredged and the open space is laid on the opposite flank, deposits form a lifting production 3 up to connecting with an inclined exit. With a slope angle of 15 -tgl5 0.25. Consequently, with a deposit length of 1000 m along the strike, the height of the upper part of the deposit being mined is 250 m. bunker, equipment trunk lifting workings, etc.

After construction of the entire complex of the working excavation 3 on the flank of the reservoir and its connection with the inclined congress, they begin to develop part of the reservoir under the inclined congress in the opposite direction with the delivery of people and recoverable mineral down the main conveyor of the congress to the lifting excavation 3 surface or acting horizon.

As the deposit is worked out under the inclined congress, the laying of the worked-out space is successively redeemed and in the plowed space on the opposite flank they form an elevation production 4. After the specified congress is fully repaired, the layers are tested at

an inclined ramp, formed in the direction from the lifting excavation 3, along which people and the extracted mineral are transported upwards to this elevation excavation.

After the complete construction of the excavation A and the completion of all near-barrel excavations on this horizon, the development of a part of the reservoir under the elevation excavation 3 to this inclined congress with the delivery of people and recoverable minerals downwards to this elevation excavation rise to the surface or to the acting horizon. On the flank of the deposit, as far as development is concerned, sub-subsurface production is increased 2. After the specified inclined congress is repaired, a part of the reservoir is worked out at an inclined congress held from the lifting production 4. In this case, the mineral is transported up to the lifting production on which surface or acting horizon Simultaneously with the excavation of a mineral in the developed space, an increase in the excavation output is made 3..

After the complete excavation of the excavation 3 and near-shaft excavations at this horizon, part of the deposit is continued under the elevation of excavation 4 to the inclined congress, to which the extracted mineral is delivered down to the elevation excavation 3, through which elevation is carried out.

Then the operations are repeated with a change in the direction of the next congress and alternation of the recovery of the extracted mineral in the flanking lifting workings as they are constructed.

To increase the intensity of the development, it is planned to develop several horizontal layers at the same time, with a corresponding lead in the excavation of one layer in relation to the other.

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In order to comply with the safety regulations for the development of deposits, provide for emergency exits with mechanical lifting. The ventilation of the cleaning space in the application of the proposed method of development is carried out on the formed workings in the paving space.

In case of a complex morphology of a deposit, the design of the lifting workings may go beyond the contour of the deposit.

Claims (1)

Invention Formula A method of developing mineral deposits, including mining of minerals by descending layers from flank to flank, sequential laying of the developed space with hardening mixtures, forming in the filling mass as the layers of lifting workings are developed and lifting along the lifting workings of the extracted mineral, characterized by that, in order to increase the efficiency of development of extended deposits by intensifying mining and reducing operating costs, the upper part of the deposit work in the direction from the inclined congress formed as the layers are worked to the elevation development formed on the flank with the recovery of the extracted mineral, along the inclined congress, and after the inclination congress with the elevation development is completed, a part of the deposit is worked in the rise of the extracted mineral in the form of a developed excavation and as the layers are worked out by laying out the worked-out space The inclined exit is completed, and after the inclined exit is fully repaid, the operations are repeated with a change in the direction of the formation of the next inclined exit and the alternation of the recovery of the extracted mineral in the flanking elevation workings. 24 - Fg / g.2