CS259236B1 - Mining Inflatable Cushion for Corridors - Google Patents

Abstract

The essence of the inflatable cushion for closing mine passages is that it consists of a sewn textile cover with a glued welded air chamber. The cover and the air chamber are dimensionally shaped according to the cross-section of the mine passage profile, while the optimally low weight is achieved by reducing the membrane stress on the front walls of the cushion by means of delimiting ropes, which are anchored to the shaped flanges, or to individual outer and inner flanges, by means of pulleys, pulley holders and rope bolts.

Description

I 259236

BACKGROUND OF THE INVENTION The present invention relates to a mine inflatable cushion for corridors for closing horizontal and inclined mine tracks.

Up to now known inflatable cushions for closing of mining tunnels are made by vulcanizing from non-small layers of rubberized fabrics. To achieve safety strengths, due to the high membrane strain of the large-size cushion when sealing large-diameter corridors, the rubber-cushioned inflatable cushion must be thick-walled, robust, heavy, bulky, and thus less mobile. The handling of such a cushion is difficult, requiring a spe- cial auxiliary alignment, which reduces the ability to protect or prevent action.

Vulcanization of non-thin layers of rubberized fabrics is highly demanding for the consumption of thermal or electrical energy and rubberized raw materials. In addition, expensive and dimensional vulcanization tuning is required. For the above mentioned production and handling reasons, inflatable cushions with a diameter of 1000 mm and lengths of 2,000 mm or even smaller, superimposed on each other are used to seal the corridors. They are also made by vulcanization from rubberized fabrics, recently also a textile wrapping and free embedded polyvinylchloride ( PVC) Bladder. The small-sized inflatable cushions are stacked in the corridor on each other in a mine accident and are filled individually with compressed air until the mine corridor is closed.

The number of pillows must be calculated in advance according to the profile of the mining corridor. Nevertheless, the narrow-gauge inflatable cushions in Uzbekistan are much more mobile than closing with a traditional way - a lining made of bricks, blocks or blocks, where water, lime, sand, etc. are needed. A large number of small-sized inflatable cushions are not enough to quickly close the corridor prompt and reliable.

The deceleration causes decomposition of the individual pillows and laying in the super layers. Especially the filling of the compressed air with the compressed air is time-consuming, by screwing the hose through the overpressure control in each pillow. If one of the whole series used is faulty, closing the corridor is problematic and imperfect. The manufacture of small-sized inflatable cushions is a resource-intensive and labor-intensive due to a larger number.

The aforementioned drawbacks are eliminated by the inflatable passage cushion according to the invention, which consists in that it is constructed in a dimensionally identical manner to the profile of the mine passage of the welded bladder glued into a dimensionally identical textile casing; with ropes. The molded flanges are preferably provided with thrust rings, fasteners and a rubber seal, wherein the rim of the textile sheath is lined in the aperture with sewn-in polyvinyl chloride wire. The molded flanges are preferably provided with a filling valve and a safety valve with the possibility of internally connecting the pressure relief hose of the aleboreta, possibly with additional non-illustrated valves and a hose.

Advantageously, at least two rope seals with rubber gaskets, handle holders and rollers are attached to the shaped flanges to which the ropes are tied. The demarcation ropes for demolishing the diaphragm stress in the front walls, which are over pulleys, pulley holders with rubber gaskets and rope screws anchored to the shaped flanges, are provided with limiting lanamina to reduce the diaphragm stress that is anchored to individual inner flanges provided with grooves into which welded sealing polyvinyl chloride rings engage . The advantages of the inflatable cushion according to the invention are that the production is in comparison with similar known cushions, highly economical and these cushions are more mobile because they have roughly four times lower weight. They do not require costly investments in curing equipment, and the production technology is approximately 20 times less demanding on heat and electricity. The solution allows dual-purpose use: to close mining tunnels

Claims (5)

3 259236 also for the control of airtightness / watertightness / mine corridors or spacious sewage systems in the new storage, localization of faults, in the case of oil-related emergency situations. Emergency cushioning can be used as a low-pressure lifting device or for lifting in marshy terrain. In the accompanying drawings, examples of embodiments of banana blow cushions for corridors are shown schematically. FIG. 1 is an overall spatial view; FIG. 2 shows a single flange with a holder and a roller; FIG. 3 is a schematic cross-sectional view of a mold flange with a bracket and pulley grip. FIG. 1 is a spatial drawing of a mining inflatable cushion for a corridor consisting of a textile casing 2 in which a PVC cuvette is inserted and glued. In both of the pillow walls, there are openings with sewn PVC wire 2 in the sheathing, which serves to fasten the shaped flanges 3 with the rope screws 2 »by the pulley holders 8, with the rollers 2> the filling valve 14 and the safety valve 15, fig. The flanges 2, also by means of individual flanges 11 and 12, are spaced apart by polyamide ropes 10, which are attached to the shelves 2 with a self-locking grip on the edge of the front wall of the pillow. 3, by means of the screws 5, the edge of the opening in the textile wrapper 2 is attached by means of screws 5 and the edge of the polyvinylchloride (PVC) bladder 2. The method of attachment and clamping is shown in FIG. textile wrapping - 2s polyvinyl chloride jacket between the individual flange outer 11 and the inner flange 12, which are clamped by the screw 7 and the roller holder 2 8 by the roller 2 · The air tightness at the penetration points is secured by a rubber seal 13. After the additional valves have been fitted to both flanges and by switching these valves through a high-pressure rigid surface hose or connecting a high-pressure hose from the inside of the cushion with both safety valves, the inflatable cushion can also be used to carry overpressure testing of mine corridors or water and gas pipelines. It is carried out by sealing the banana passage / duct / inflatable cushion by blowing air / water overpressure into the controlled passageway or duct through a mounted high pressure hose. SUBJECT MATTER 1. A mine inflatable cushion for corridors for mining tunnels, characterized in that it is dimensionally coherent with the mine corridor profile from an airtight welded air-tube (2) glued into a dimensionally identical textile casing - the casing (1), wherein the face panels are provided with shaped flanges (3) or individual flanges (11) and (12), respectively, with one or more flange types, with spacing ropes (10). 2. A mine inflatable cushion for tunneling corridors according to claim 1, characterized in that the shaped flanges (3) are provided with thrust rings (4), connecting bolts (5) and a rubber gasket (13), wherein the edge of the textile covering - the sheath (1) is lined in the opening with polyvinyl chloride (PVC) sewn (6). 3. A mine inflatable cushion for tunneling corridors according to claim 1, characterized in that the shaped flanges (3) are provided with a filling valve (14) and a safety valve (15) with the possibility of internal connection of the overpressure hose or pipe, possibly with other non-illustrated valves and hose. 4. A mine inflatable cushion for tunneling passages for mining tunnels according to clauses 259236 4 to 3, characterized in that at least two rope screws (7) with rubber gaskets (13), pulley holders (8) are fastened to "shaped flanges (3)". and pulleys (9) to which the ropes (10) are tied. 5. A mine inflatable cushion for tunneling corridors according to clauses 1 to 3, characterized in that the deflecting ropes (10) for reducing the diaphragm stress and the face walls which are over the pulleys (9), the pulley holders (8) with the rubber gasket / 13) and the cable bolts (7) anchored to the shaped flanges (3) are provided with ropes (10) to reduce the membrane stress that are anchored to individual inner flanges (12) provided with grooves into which welded sealing polyvinylchloride (PVC) fits. ) rings. 2 drawings