SU934003A1 - Method of working thick coal beds with use of flexible partition - Google Patents

Description

one

The invention relates to the mining industry and is intended for the development of thick coal seams.

There is a method of developing thick flat and inclined coal seams using flexible overlap 1.

However, this method of development is characterized by insufficient efficiency.

There is also known a method of developing thick coal seams using flexible overlap, which includes dividing the excavation floor into blocks, holding furnaces, fittings, transport and ventilation preparatory workings, working out the installation layer, and excavating coal under flexible overlap 2.

However, this method is characterized by insufficient efficiency due to significant coal losses and a large amount of preparatory work.

The purpose of the invention is to eliminate these disadvantages.

The goal is achieved by the fact that the excavation block outlines transport and ventilation workings near the soil of the reservoir, transport and ventilation workings under a flexible overlap, leaving behind them protective coal packs, knock down these workings among themselves and create an inclined clearing face, a horizontal clearing face under a flexible Overlapping and horizontal cleaning face of the soil of the reservoir, remove the coal in the horizontal clearing faces, then remove the coal under a protective bundle in the inclined clearing bottom, after which production of collapse and release

The Q of the protective bundle of the horizontal clearing face beneath a flexible overlap through the inclined clearing face and collapse and release. protective pack of the angle of the inclined clearing of the bottom areas from top to bottom FIG. 1 shows the scheme of the method

15 developmental perspective view; in fig. 2 shows section A-A in FIG. one.

The method is carried out in the following manner.

Thick layer of hollow or sloping

2Q falls are divided into the upper excavation layer 1, where, as the coal is excavated, flexible overlap 2 and lower excavation layer 3 are erected. The lava of the upper layer 1 is contoured by two workings 4. The coal is dredged in the stope 1 by, for example, a combine 5

or other excavation mechanism, and the roof support mechanized lining 6 or an individual of any type. The lower layer 3 is contoured along the strike or fall by two openings 7 at the flexible overlap or at some distance from it, one of which is equipped with a conveyor 8 and two openings 9 at the soil of the formation with the conveyor 10 in one of them. Production 9 knock together and create a long cutting bottom 11 of the soil layer, which is equipped with a combine 12, a conveyor 13, and support mechanized or individual lining 14. At the interface of the development 9 with a clearing face 11 conduct an inclined split furnace

15 and knock with the production of 7, at such an angle to the horizon, which ensures the gravity of the coal on the conveyor 13, mounted in the wedge bottom 11.

The split furnace is equipped with a mechanized or individual support 16 and, for example, a combine 17, taking into account the movement of the created inclined clearing blade 18 in the direction from ventilation openings 7-9 to conveyor openings 7-9 and vice versa.

A split furnace 19 is conducted from the flexible overlap 2 or at some distance from it with the conveyor contouring opening 7, taking into account the supply of coal from the clearing hole 18 and equipping it, created by the cleaning face 20 with a mechanized support 21 of a special design that provides the mechanized maintenance of the upper emergency exit 22 from the clearing slab 18, as well as by the conveyor 23 and the combine 24. Initially, coal was excavated in the drop-in slots x 11 and 20. Then begin the working of the inclined clearing slab 18.

After excavation of the strip of coal in the inclined clearing face 18 to the technically necessary width and partial carrying lining

16Produces the stripping and extraction of coal from top to bottom of the original console of coal 25 intended to be released in the face 20 and then in sections from the top down the thickness of coal 26 in the bottom 18

Before the approach of the inclined clearing slab 18 to the border of the notch, the cutting is made

an advanced split furnace 15 and fastened with a special support, providing reversal and rewiring of bottomhole equipment 16 and 17 in it and the development of excavation work in the opposite direction.

5The proposed method will greatly improve the efficiency of the development of thick coal seams.

Claims (2)

1. USSR author's certificate N ° 144776, cl. E 21 C 41/04, 1965. 2. Krylov V. F. and others. From the experience of developing thick flat seams. M., Ugletekhizdat, 1959, p. 98-99. %