SU1687798A1 - Shaft inflatable cofferdam - Google Patents

Abstract

The invention relates to mining and m. used in the conduct of mining and rescue operations for the temporary isolation of mine workings. The purpose of the invention is to reduce the complexity of the construction of the shaft jumper and increase the reliability of its work. The jumper contains canvas 1 of pneumatic chambers (PC) 2, which are made of elastic materials. On each PC 2, pressure 3 and exhaust 4 valves are installed. On the outer surface of PC 2 along their longitudinal axis there are rigidly fixed rings (K) 5. The jumpers include stops in the form of rigid telescopic guides (H) 6 and hoses 7 for connecting the PC 2 to a source of compressed air. When the jumper is installed, PC 2 straightens, two rows of K 5 are put on H 6, which are fastened to the walls of the excavation 8. When compressed air is fed to PC 2, the latter are straightened by moving along H 6. Then the following rows are installed similarly PC 2 and H 6 In workings having a greater height, H 6 are mounted vertically. 3 or Ј

Description

The invention relates to mining and can be used in mining and rescue operations for the temporary isolation of mine workings.

The aim of the invention is to reduce the complexity of the construction of the shaft of the lintel and increase the reliability of its operation.

FIG. 1 shows the jumper installed in the mine working, general view; in FIG. 2, the same cross section; Fig. 3 shows the position of the pneumocamera when self-moving along guides at the moment of compressed air supply.

The mine inflatable jumper includes log 1 of pneumatic chambers 2. which are extruded from elastic materials. On each pneumocamera 2 installed pressure 3 and exhaust 4 valves

Rings 5 are rigidly fixed on the outer surface of the pneumatic chambers 2 along their longitudinal axis

The jumper also includes stops in the form of rigid telescopic guides 6 and hoses 7 for connecting pneumatic chambers 2 to a source of compressed air.

The jumper works as follows.

After the individual elements of the lintel are delivered (pneumatic chambers 2, rigid telescopic guides b and connecting hoses 7), pneumatic chamber 2 straightens to its place of installation, two oppositely located on the surface of the row of rings 5 are put on rigid telescopic guides 6, which by adjusting them lengths reliably

one is fastened parallel to each other between the walls of the mine workings 8. If the mine workings 8 are fixed, then for increasing the stability of the blade 1, the rigid telescopic guides 6 are located on the opposite sides of the frame 9 of the mine workings 8. Then the connecting hose 7 is connected at one end to the crane 10 a flow rate 11 (for example, a can of compressed air), and the other end to the discharge valve 3 and compressed air is supplied to it. Under the influence of compressed air on the ends of the pneumatic chambers 2, they begin to move along rigid telescopic rails 6 until they reach the walls of the mine workout 8. After that, the valve 10 of the flow rate driver 11 closes and installs the next series of rigid telescopic rails wearing a pneumatic chamber 2 on them so that the distance between adjacent rows of rigid telescopic guides 6 does not exceed the diameter of pneumocameras 2. The second connecting hose 7 connects the discharge valve 3 of the following о р yes pneumocamera 2 with exhaust valve 4 previous p yes. As a result, part of the air is redistributed from the lower p of pneumatic chambers 2 to the upper one and the height of the lower p of pneumatic chambers 2 somewhat decreases, which reduces their resistance to the movement of pneumatic chambers 2 of the upper p when air is pumped into them. Then the ends of the connecting hoses 7 of the upper row of pneumatic chambers 2 are disconnected from the exhaust valves 4 of the lower row, connected to a flow booster 11, and compressed air is supplied to the pneumochamber 2 of the upper row. According to the above-mentioned work technology, all subsequent rows of rigid telescopic guides 6 with Pneamokamers 2 located between them are installed. At the same time, rigid telescopic guides 6 should not fit snugly to the upper 12 and lower 13 branches of the belt conveyor, but be away from they are at a distance allowing free movement of pneumatic chambers 2.

In mountain workings with a great height (which is very typical for mines, when the mineral transport is carried out by self-propelled trolleys or even dump trucks) rigid telescopic guides 6 with harnesses

pneumatic chambers 2 are installed vertically, reliably unclenched between the soil and the roof of the mine workout 8. The pneumatic chambers 2 of each such column are successively interconnected by connecting hoses 7, after which compressed air is supplied to them until they are completely between the soil and the roof. In this case, the pneumatic chambers 2 self-move in the lower direction.

up.

Claims (1)

Claims of the Invention Mine shaft inflatable bridge, including a web of pneumatic chambers made of elastic material, with pressure and discharge valves and stop elements, which, in order to reduce the labor intensity of mine shaft construction and increase the reliability of its operation, pneumatic chambers are equipped with rings, the elements are made in the form of rigid telescopic guides, while the rings are movably connected with guides, and pneumatic chambers are mounted with the possibility of their longitudinal movement relative to the guides. fc 1 Fig.Z Compiled by A. Vyshary. Editor 3. KhodakovaTehred M. MorgenCorrector M. Sharoshi  AT to eleven