SU1382981A1 - Stopping for mine working - Google Patents

Abstract

The invention relates to mining and m. used to cut off the mine workings during backfilling to attenuate the air shock wave during repeated explosions. To isolate fire and liquidation sites, to open outburst formations and to regulate the air stream. The goal is to increase the compatibility of the jumper A-. loads. The jumper includes interconnected inflatable balloons I of elastic material. The cylinders 1 are made in the form of rectangular prisms with a trapezoidal base. Cylinders installed 1 wedge in a wedge. The cylinders 1 on the side of the load through one have rubberized aprons 2. They are located on the side surface of the prism, bounded by the side of the smaller base of the trapezium and the height of the prism. The area of the front apron 2 is equal to the lateral surface of the prism, limited by the side of the larger base of the trapezium and the height of the prism. Cylinders 1 are arranged with rows, with all air supply valves 3 located on the side opposite to the load. The filling of the cylinders 1 is carried out alternately after laying each row. When laying, cylinders I without apron 2 are placed first, and then with apron 2. 6 Il. I Sl :) 00 .S

Description

The invention relates to a mining business and can be used to shut off mine workings during repair work to attenuate an airborne tidal wave, with repeated explosions, to isolate fire-affected areas, to open outburst formations and to regulate the air stream.

The aim of the invention is to increase the resistance of the jumper to directional loads.

Figures 1 and 2 show the construction of a cylinder (two types); fig.Z - jumper in the cross section of the mine workings iid from the side opposite to the load; FIG. 4 is the same, 1d on the load side; on fig.Z - section aa on fig.Z; on (rig, 6 - section bb in fig.Z.

The bridge consists of inflatable cylinders 1, filled in the form of direct / hot prisms with trapezoidal bases, and the aspect ratio d: a 1: 2, on one of the cylinders there are rubberized aprons 2 of the area equal to ahb , and on others they are absent. Each of the cylinders 1 is equipped with valves 3 for filling them with compressed air or water, and for those cylinders that are equipped with rubberized aprons, the valves on the side of the prism have a larger base than the trapezium, and for those cylinders that do not have rubberized aprons Valves are located on the side face of the prism defined by the lower side of the trapezium base.

The jumper works as follows.

On the sole 4 of the preparatory development of parallel lateral sidedirections. And in the first place stack-balloon without a rubberized apron, then - with a rubberized apron, and so on, a series of them. The second row is filled with a working agent. Next, the third row is stacked, and a balloon without a rubberized apron is placed on the balloon without an apron,

next to him is a balloon with an apron and

etc. After this, the third row is filled with a working agent. The remaining rows are stacked and filled with a working agent in the same way.

For a more thorough overlap of production, cylinders 8 of reduced dimensions a, b are placed on the last row of 7 cylinders, with sides with a ratio of 1/3 relative to the main inflatable cylinders 1, which are included in the bundle.

The length of the cylinders, equal to the height of the trapezium, must be less than the distance between the support frames. If the distance

between the metal support frames of 1 m, the length of the cylinders must be 0.9 m; for wooden supports with a rack diameter of 0.2 m and the same distance between the support frames the length of the cylinders

is Oj8 m,

The application of the invention will increase the resistance of the lintel due to the reliable connection of the wedge cylinders to the wedge, as well as prevent the cylinders from knocking out due to sudden emissions of coal and gas due to the presence of rubberized aprons and reuse them under different conditions.

Claims (1)

The invention of the jumper to overlap the mountain RON stack the first row of 5 points - g workings, including connected 1, with the first cylinder without a rubberized apron, and then a cylinder with a rubberized apron 2 and so on through one, all air supply valves 3 cylinders must be located on the side opposite to the load, and the aprons 2 on the side of external load . Then the cylinders of the first row are filled with a working agent. Then, on the first row, the side row parallel sides place the second row 6 with a slight displacement in the transverse and longitudinal among themselves, inflatable balloons of elastic material with air-breathing valves, characterized in that, in order to increase the resistance The gg of the lintel is designed for loads, the inflatable balloons are made in the form of an installed wedge in a wedge of m-angle prisms with a trapezoidal base, with one side One gg cylinders are provided with slotted aprons with an area equal to the lateral surface area of the prism with the limited side of the larger base of the trapezium and the height of the prism, p workings including connected among themselves, inflatable balloons of elastic material with snuff-breather valves, characterized in that, in order to increase the resistance of the jumper to directional loads, inflatable balloons are made in the form of an established wedge into a wedge of rectangular prisms with a trapezoidal base, on the one hand the balloons through one are supplied with rubberized aprons with an area equal to the lateral surface area of the prism, limited by the side of the larger base of the trapezium and the height of the prism, placed on the lateral surface of the prism bounded by the side of the fig, 1 The base of the trapezoid and height prism. FIG. g . XXX XXX X / V V / yVy XX / / X / yV