SU1129380A1 - Arrangement for damping air shock wave energy in mine workings - Google Patents

Abstract

A DEVICE FOR EXTINGUISHING ENERGY OF A SHOCK AIR WAVE IN THE MINING DEVELOPMENTS, including vertical shock-absorbing elements installed with a gap between each other and elastic overlap, so that in order to increase the efficiency of extinguishing an air shock wave by using the energy of the wave itself in shock suppression, the shock suppressing elements are made in the form of gate leaves with flaps, hinged on vertical spacer columns, which are evenly dispersed along the axis of the mountain working at a distance of and from each other is not less than the width of the gate flaps, and the gate leaf with flaps oriented perpendicularly to the walls of the excavation on oppositely. sides are relative to each other, and elastic overlaps are rigidly fixed along the perimeter of each impact element.

Description

Phie. one

The image is attributed to the mining industry and can be used to protect workplaces, equipment and structures from the action of an air wave during rock bursts, mass explosions and collapses.

A device for damping shock-air waves is known, which includes vertical elements installed with a gap in relation to each other, O and a number of horizontal flexible connections made of cables that envelope vertical elements II.

The disadvantage of this device is that its extinguishing capacity is very low, at the same time it covers the entire cross section of mining and does not allow for the free passage of people and equipment.

The device closest to the proposed 20 device for gavgeny energy of the shock air wave in the mountain works contains vertical shock-absorbing elements installed with a gap to each other and elastic overlap 25. It is equipped with a stop located in its lower part, and the vertical shock absorbing elements in their upper part are freely suspended on an axis fixed under the hemoton of the {2J.

However, this device is mainly designed to create drag. In this case, the vertical impacting elements 35 must be either very massive (for their greater inertia), which makes it difficult to manufacture, transport and mount, or the device must have an emphasis in the lower part, O which also yBej.H4H- BaeT its inertia. In both cases due to the high inertia of the vertical elements, the fastening of the vertical elements must be sufficiently reliable to withstand the destructive forces of the shock air wave, i.e. its action is reduced to the action of a deaf jumper, and the deviations of the vertical elements 50 after the impact of an air shock wave on them (if held fastened) no longer make sense, since the device behaves passively, not used to dampen the energy 55 of the wave itself.

In addition, due to the overlap of the generation section, the ventilation mode of the shaft is disrupted, and after each impact of the shock air wave, the support of the vertical elements must be restored to reuse the device.

The purpose of the invention is to increase the efficiency of damping a shock air wave by using the energy of the wave itself in shock suppression.

This goal is achieved by

that in the device, which includes vertical shock-absorbing elements and elastic overlaps installed with a gap to each other, shock-absorbing elements are filled in the gate panels with flaps hingedly mounted on the vertical spacer columns, which are evenly dispersed along the mine working axis at a distance from each other each other is not less than the width of the leaves of the gate, while the doors of the gate with flaps are oriented perpendicular to the walls of the mine workings in opposite directions. and rigidly fixed around the perimeter of each shock absorbing element.

Figure 1 shows a device for damping a shock air wave, cross section; figure 2 - section

A-A in FIG. 1.

The device consists of vertical shock-absorbing elements 1, made in the form of gate leaves, having a concavity in the direction of movement of the shock air wave and / stiffener 2, elastic overlaps 3, made of transport tape and attached by means of bolts or rivets 4 to vertical shock-absorbing elements along their perimeter, spacer columns 5, vertically installed along the axis of generation 6 with a gap to each other equal to not less than the width of the vertical impacting element 1, flaps 7, rigidly connected to the vertical th element 1 in one plane, but on the other overlooking pine by column brace 5. Numeral show various vertical positions udarogas pad 1 after being exposed to a shock air wave.

A device for damping the energy of the shock air wave works as follows.

Claims (1)

DEVICE FOR EXTINGUISHING THE ENERGY OF A SHOCK AIR WAVE IN MINING, including vertical shock-absorbing elements installed with a gap to each other and elastic ceilings, which is related to the fact that, in order to increase the efficiency of damping an air shock due to using the energy of the wave itself in shock absorption, shock-absorbing elements are made in the form of gate leaves with flaps pivotally mounted on vertical spacer columns that are uniformly dispersed along the axis of the mine at a distance of from another not less than the width of the gate leaves, while the gate leaves with flaps are oriented perpendicular to the walls of the mine working in opposite directions relative to each other, and the elastic ceilings are rigidly fixed around the perimeter of each shock-absorbing element.