RU2490471C2 - Anti-explosion barrier from double water pockets - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: anti-explosion barrier 1 comprises multiple identically arranged so called double water pockets 5. These double water pockets 5 comprise a sleeve made of a polymer film 4, which is bent at the ends 15 with formation of an edge or a channel, or a valve (7, 12) for insertion, and then it is welded, sewn or stitched. Via a channel or a valve 7, 12 formed in this manner for insertion an intermediate rod 10 is stretched, and then suspended to s-shaped bearing hooks 8, 9, which at their side by means of another hook are installed on the bearing rod 2. As a rule, aside, in the zone of entry for an intermediate rod 10 there are through holes 20, 21 provided, or loading holes 6, through which water 11 may additionally enter, and if necessary, again drain. Therefore only one of parts 13 of the pocket shall be removed from the s-shaped bearing hook 8 or 9 and is lowered down, so than then water 11 could be quickly drained via the specified holes.

EFFECT: barrier is easier mounted and dismantled, easily filled with water, and quickly and simply carried, if necessary.

Description

SUBSTANCE: invention relates to an anti-blasting barrier for underground mining and tunneling, consisting of sleeves made of a polymer film suspended on a boom extending perpendicular to the longitudinal direction of the drift rod, with a loading hole that are placed on the carrier rods or have an insert valve for connecting via s -shaped load-bearing hooks with a supporting rod of the intermediate rod and which, after hanging, are filled with water or other liquid extinguishing explosive flame and coolant extinguishing agent.

Explosive barriers are used in underground mining, as well as in tunneling where there is a danger of explosion, that is, in particular, due to an ignited mine gas. Explosion barriers are constructed in such a way that rock dust or water is released under the action of a blast wave, so that subsequent ignition is extinguished and also substantially cooled, while this mine air becomes safe. Explosive barriers are known in which, one after the other, on the supporting rods extending perpendicular to the longitudinal direction of the drift, platforms are located on which rock dust is stored. Further known are Explosion-proof barriers in which rock dust is held in special plastic bags, which are burst under the action of a blast wave so that the fine-grained rock dust is distributed in the mine air in such a way that the flame is extinguished. Further, plastic vessels are known that are located on platforms and are filled with water, and under the influence of an explosion and a blast wave are discharged in such a way that water is distributed along the drift. The newest development is to keep water in plastic pockets or water pockets when the water pockets are torn and the water is evenly distributed around the perimeter. Exactly 40 liters of water are poured into this pocket, and the advantage of these water pockets is that once the filled water cannot evaporate over time, so such Explosive barriers in the form of water pockets are always “active”. If such explosion-proof barriers with their water pockets must be moved, or for some other reason they can be dismantled, then the water pockets filled with water are destroyed, which under certain conditions creates environmental problems. The disadvantage is, in addition, that the described water pockets are filled through the loading hole after they are wrapped around the supporting rods. In order to avoid this winding, water pockets have been developed that are simply laid on support rods and form something like double pockets, with the ends of the sleeves facing the soil layer. Such pockets can be easily dropped from the supporting rods, and the protection provided by such water pockets is not sufficiently reliable. Then water pockets were developed, in the center of which there is a valve for insertion, through which a support rod or cable is held. And at these double water pockets, the ends of the sleeves are also located with orientation in the direction of the soil layer. All these water pockets have the disadvantage that they, as a rule, are not suitable in case of movement of the whole explosion-proof barrier as a whole.

The invention is therefore based on the task of creating an anti-explosive barrier having water pockets that can be easily mounted, first of all, filled, and, if necessary, quickly and easily outweighed.

The problem is solved in accordance with the invention by the fact that the sleeve of the polymer film on both sides with the formation of a through, closing simultaneously the sleeve on the end side of the valve for insertion is welded, sutured or stitched, and on the end side has at least one loading hole while inserted intermediate rods are arranged to be jointly placed on s-shaped load-bearing hooks.

Welds or other seams required to close the sleeve of the polymer film are simultaneously used to form a valve for insertion, that is, they are bent once, and then welded, stitched or sewn with the wall of the sleeve. An intermediate rod or both intermediate rods are then inserted into this insertion valve, and are placed on a so-called “meat” hook, which is suspended in its other part on the corresponding supporting rod. Such s-shaped carrier hooks are provided on both sides, so that reliable suspension is ensured. Since a seam made in this way is not subjected to a load from the side of the water pressure, there is no need to be afraid of leaks in this zone. Both insert valves, which form the corresponding end of the sleeve, are the highest places, and water stands in both parts of the pocket or in the correspondingly folded water pocket in such a way that there is no danger of unintentional escape of water or other fire extinguishing agent. Preferred in this case, in particular, is easy installation, since only the intermediate rods should be inserted into the corresponding valves for insertion, and then suspended on s-shaped load-bearing hooks, after which the loading holes at both ends are prepared for pouring water. If this water pocket is then outweighed or it must be used again for a different purpose, then only one of the intermediate rods must be raised and lowered so that the water then flows out through the lower loading hole and comes out relatively quickly, depending on size this loading hole. The entire water pocket as a whole, that is, a sleeve made of a polymer film, can then be suspended without problems and filled again with a new portion of water.

When working with this kind of sleeves from a polymer film, welds are mainly used. With such welds, there is little likelihood of danger that, with appropriate overload, the seam will break. For the manufacture of such a weld, it is provided that the ends of the sleeve are once bent once to form an insert valve, the invention furthermore providing that the ends of the sleeve to form a four-fold weld are welded to the sleeve wall to form insert valves.

With such a four-fold weld, all four films of polymer material sleeves superimposed on each other are effectively connected to each other, thereby ensuring high load capacity, due to which the inserted intermediate rods can evenly transfer the necessary forces and transfer them further through the s-shaped load-bearing hooks on load-bearing rods.

Another preferred embodiment of the invention is the one in which the ends of the sleeve are respectively welded to form a double weld and when through holes are formed under the double weld for forming insert valves. In this case, both ends of the sleeve are simply taken, without preliminary bending to form an insert valve, and are simply firmly connected to each other at the end by means of this double weld. In order to be able to hold the intermediate rod, passage openings are made, that is, the film is cut in this region, and these passage openings can advantageously be simultaneously used as feed holes and outlet openings. Since these passage openings are provided on both sides of the sleeve end, in accordance with this, water, if necessary, can quickly drain from a closed, otherwise, sleeve from a polymer film.

It is possible to form a special type of grips to move the intermediate rods there. In accordance with the invention, it is provided that existing hanging valves are attached to the ends of the sleeve of the polymer film, which are formed and arranged in a group by the type of insertion valves for s-shaped load-bearing hooks. That is, you can either advance the intermediate rod through the valves for hanging, or directly suspend it on the bearing hooks. In this case, however, harmful local loads are detected, and, for example, with a volume of 40 liters, uneven loads are formed in such a water pocket on the sides and in the center, so that there is always a danger that these suspension valves will break. Therefore, these hanging valves must be very wide so that the solutions described below with an insert valve can be more appropriate.

If it is required to quickly and more or less reliably connect the described hanging valves to the ends of the sleeve, it is preferable when the hanging valves are installed in the manufacture of a double or four-fold weld on the sleeve. Then a relatively short weld seam or another seam should take on significant loading, even if we proceed to that option, for example, in a special way to weld or in some other way connect the protruding ends to the sleeve.

For filling an appropriate water pocket with water or another extinguishing agent, it is preferable if a loading hole is punched or cut out on the outside of the sleeve under each insert valve and a double or four-fold weld. This is an advantage, in particular, if, accordingly, only the outer wall of the sleeve is equipped with such a loading hole, since when introducing the sleeve, it is impossible to pass through another wall, and you can always guarantee reliable filling of water. However, it is also preferable to punch these loading holes on the side, since then the sleeve itself can always be inserted deep enough without hitting the opposite wall, so that work can also be carried out using relatively large sleeves.

It should be noted that separate passage openings are created for the intermediate rods, which can then be used simultaneously for water supply as well as for draining water. In addition to this, the invention provides that the passage openings for forming the insert valves are at the same time proportionate for receiving the filling hose. This embodiment has the advantage that the required water can be very quickly filled on both sides or through all four passage openings in the sleeve. Thereby, the retooling time for such anti-explosive barriers is reduced and the advantage is achieved that by suspending the corresponding water pockets, the water therein can be drained in an extremely short time. In addition, such lateral water discharge gives the advantage that the maintenance personnel are not exposed to the draining water.

Instead of forming separate passage openings by cutouts in the sleeve, the invention further provides that for the formation of each loading hole, the corners of the sleeve are cut or cut off on one side. As a result of trimming the corner, both a loading hole and a passage hole are formed, and the corresponding water pocket can be suspended in a short time. To this end, it is envisaged that all four corners of the welded sleeve are cut or cut to form a loading or, if necessary, also passage opening. Thus, accordingly, holes appear in the corners through which intermediate rods can be drawn, through which water can be poured as well as drained.

With double welds, however, it may be preferable when, in addition to receiving intermediate rods, as well as supporting rods on both sides of the sleeve, one or more additional hooks are provided, additionally drawn through the sleeve wall, to the supporting hooks. As a rule, it will be sufficient if such an additional hook is provided in the center between both side load-bearing hooks; in exceptional cases, it can, however, also be two or three load-bearing hooks distributed along the entire length of the end of the sleeve. The hole obtained as a result of introducing an additional hook in the wall of the sleeve does not present any problem, since it is located in an area where, thus, there are two or four walls. In a preferred embodiment, the intermediate rods may not bend even with a correspondingly large weight, for example, 40 liters, and the tensile forces are then distributed along the wall of the sleeve in such a favorable way that there is no rupture of the film.

The invention is characterized, in particular, in that a water pocket is formed which, together with other pockets, forms an anti-explosion barrier and which, due to purposefully formed insert valves, use both ends of the sleeve to suspend the entire water pocket on the intermediate rods. The weight of the subsequently poured water is distributed so evenly that no overload can occur in the area of the insert valve or the boom located there. The so-called double water pockets can be easily mounted, and intermediate rods are drawn through the insertion valves or channels formed in the area of the ends of the sleeves, in order to then position the double water pockets in a sagging downward position in the area of the top of the drift layer. Cutouts are made in the area of the ends of the sleeve for forming passage holes, as well as loading holes, so that with the simplest connecting seam, intermediate rods can be easily inserted. Thus, it is possible to achieve a quick installation of these double water pockets, at the same time, however, and easy dismantling if it is necessary for any reason. Then, the side openings of the passage openings are distinguished in a preferred manner, since by hanging on one side of the double water pocket, water from the double water pocket can be quickly and purposefully drained. So for the first time it became possible without large expenses to remove the anti-explosive boom installed by mistake in the wrong place and re-suspend it at the desired destination. Also, for the first time, such double water pockets can be returned to their original state without any problems for re-targeted use in another place.

The invention is illustrated by drawings, which represent the following:

figure 1 - double water pocket with a four-fold weld;

figure 2 - end of the sleeve on an enlarged scale;

figure 3 - water pocket of the sleeve of the polymer film in the unfolded state,

figure 4 - two ends of the sleeve with a double weld and with inserted intermediate rods, on an enlarged scale;

5 is a water pocket suspended on intermediate rods, and filling hoses drawn through passage holes,

Fig.6 is the end zone of the double water pocket on an enlarged scale, and here, respectively, the individual loading holes are made on the side, and

7 is a self-emptying water pocket with an additional S-shaped hook.

Figure 1 shows an explosion-proof barrier 1, consisting of a sleeve made of a polymer film, which with other, similarly made sleeves 4 of a polymer film can be suspended on a support rod 2. This sleeve 4 forms the so-called double water pocket 5, and the sleeve 4 with both ends 15 is used for hanging, while the bulge points in the direction of the soil layer not shown here. In the upper zone, loading openings 6, 6 ′ are provided through which the necessary water 11 is poured. Figure 1 shows such a double water pocket 5 already filled with water. The ends 15 of the sleeve are suitably bent, thereby forming an insert valve 7 or a channel through which intermediate rods 10, 10 'can be drawn so that it is possible to suspend the double water pockets 5 by means of s-shaped load-bearing hooks 8, 9 on support rod 2. The image in accordance with FIG. 1 illustrates that such a double water pocket 5 can be suspended relatively quickly and simply if, after bending the sleeve 4, by applying a four-fold weld 16, a valve is formed s 7, 12 for insertion. As previously mentioned, intermediate rods 10 are inserted into these insertion valves 7, 12 or into the channels, which are then both placed on s-shaped load-bearing hooks 8, 9. At approximately 40 liters of the required volume of water, both parts 13, 14 pockets are inflated if water is poured through loading holes 6, 6 '11. If you want to return the double water pocket 5 to its original state, or rebuild all this anti-explosive fence, or move it to some other place, one of the ends of the sleeve 15 or the corresponding intermediate rod 10 only s are removed from the s-shaped carrying hook 8 so that the previously flooded with water 11 may then flow out through the feed openings 6, 6 '. The manufacture of such a four-fold weld 16 is relatively expensive, since four layers of film located on each other must be welded, that is, connected to each other. This requires special tools. The wall of the pocket is rather thin, that is, about 150 microns, however, such four-fold welds 16 differ in that they are quite strong at the corresponding load.

2 shows, in particular, an insertion valve 7 on an enlarged scale, and it also becomes apparent that the four-fold weld 16 formed is spaced apart from the edge 18 of the sleeve end 15.

Figure 3 shows in an unfolded form a sleeve 4 made of a polymer film, in which the ends 15, 15 'of the sleeve, by folding and forming a four-fold weld 16, form a longitudinally extending insert valve 7, 12 through which intermediate and rods 10, 10 ', so that, by being next to each other, to form a double water pocket 5, which can be placed on the s-shaped load-bearing hooks 8, 9. The feed holes 6, 6' are provided in this case in the center, and then neo it is worth noting that only the front wall 17 of the sleeve is cut, and not the rear wall, so that then when pouring water 11 the sleeve could not break.

Figure 4 shows a simpler embodiment in which only one double weld seam 19 is formed in the zone of the end 15 of the sleeve for connecting both walls of the sleeve to each other. Bore holes 20, 21 are formed below the double weld seam 19, for example, the sleeve wall 17 in this place is accordingly cut out. A corresponding intermediate rod 10 is inserted through the through-holes 20, 21 made in this way, which then reliably assumes the corresponding weight and transfers it to the support rod 2 through s-shaped hooks 8, 9.

The aforementioned passage openings 20, 21 serve simultaneously as loading holes, which will be discussed in more detail later. Separate feed openings can then be advantageously discarded.

Figure 5 shows a double water pocket 5 in accordance with figures 1 and 2. Positions 22, 23 indicate the valves for hanging, which can be used instead of through valves 7 for insertion. Of course, it is further indicated that these suspension valves 22, 23 can easily lead to uneven loading of the intermediate rod 10 a, thereby the entire explosion-proof barrier 1 as a whole. The passage openings 20, 21 or insertion valves 7, 12 are designed so that the filling hoses marked 26, 26 ′ can be introduced at the same time to fill the double water pocket 5 with water 11. These large feed openings 6, 6 ′ can be formed, in particular, and due to the fact that additional cutouts are placed in the wall 17 of the sleeve. The foregoing is explained in FIG. 7, and by means of corresponding cutouts and shaping, it is simultaneously achieved that relatively large holes are obtained for the intermediate rod 10 to enter and also to be filled with water 11. There is no negative effect on the “statics” of the double water pocket 5.

As already explained in figure 5, figure 6 shows in an enlarged image the fact that all four corners of the sleeve 28, 28 ', 29, 29' in the end zone of the sleeve 4 are provided with loading holes 6 due to the fact that the corners 28, 29 of the sleeve cut off. In this case, the entire double water pocket 5 is generally suspended on only one side, so that the previously flooded water 11 can quickly and reliably exit through the relatively large passage openings 20, 21.

It can be seen that on the outer side 25 of the sleeve 4 there are no such holes, they are made, respectively, only in the corners 28, 29 of the sleeve.

In the embodiment of FIG. 7, the corresponding intermediate rod 10 or 10 ′ is purposefully supported by an additional hook 30, which in addition is passed through the wall 17 of the sleeve. Due to this, the conducted intermediate rod 10 'is additionally supported and the sagging of the entire double water pocket 5 as a whole is reliably prevented.

Along with the outlet openings, which are also the inlet openings 6 or 20, 21, it is also possible to attach a valve 33 to the lower edge of the double water pocket 5. This valve 33 can, if necessary, open when, for example, double water pockets 5 are located in an unfavorable manner and are inaccessible without using a ladder. The valve 33 may be provided with a cord to facilitate the opening process. This valve 33 is shown in FIG.

All of these signs, and those about which it can be concluded only on the basis of the drawings, one by one or in combination with each other are considered as essential from the point of view of the invention.

Claims (14)

1. An explosion-proof barrier for underground mining and tunneling, consisting of water pockets (5) of a sleeve (4) made of a polymer film suspended from a boom (5) and suspended from a rod extending perpendicular to the longitudinal direction of the drift, with a loading hole (6) that are placed on supporting rods (2) or have a valve (7) for insertion for connecting an intermediate rod (10) connected by means of s-shaped supporting hooks (8, 9) and which, after hanging, are filled with water (11) or other liquid extinguishing explosive flame and oh by pressing fire extinguishing agent, characterized in that the sleeve (4) of the polymer film is welded on both sides, sutured or sewn and forms at the same time a through-through sleeve (4) closing on the end side of the valve (7, 12) for insertion, and on the end side contains at least one loading hole (6), and the inserted intermediate rods (10) are made with the possibility of joint placement on s-shaped load-bearing hooks (8, 9). 2. The barrier according to claim 1, characterized in that the ends (15, 15 ') of the sleeve are welded to the wall (17), forming a four-fold weld (16) and valves (7, 12) for insertion. 3. The fence according to claim 1, characterized in that the ends (15, 15 ') of the sleeve are welded to form a respectively double weld (19), and bore holes (20, 21) are made under the double weld (19), forming at this valves (7, 12) for insertion. 4. The barrier according to claim 1, characterized in that to the ends (15, 15 ') of the sleeve are attached valves (22, 23) consisting of a polymer film for hanging, which are formed and placed in a group according to the type of valve (7, 12) for inserts for s-shaped load-bearing hooks (8, 9). 5. The barrier according to claim 4, characterized in that the valves (22, 23) for hanging are installed in the manufacture of a double or four-fold weld (19, 16) on the sleeve (4). 6. The barrier according to any one of claims 1 to 5, characterized in that on the outside (25) of the sleeve (4) below each valve (7, 12) for insertion and a double or four-fold weld (19, 16) is punched or cut loading hole (6). 7. The barrier according to claim 3, characterized in that the passage openings (20, 21) for forming the valves (7, 12) for insertion are made at the same time commensurate for receiving the filling hose (26). 8. The fence according to any one of claims 1 to 5, 7, characterized in that the corners (28, 29) of the sleeve for the formation of each loading hole (6, 6 ') are cut or cut from one side. 9. The fence according to claim 6, characterized in that the corners (28, 29) of the sleeve for the formation of each loading hole (6, 6 ') are cut or cut from one side. 10. The fence according to claim 8, characterized in that all four corners (28, 29) of the welded sleeve (4) are cut or cut, forming a loading hole or, if necessary, at the same time a passage opening (6, 20, 21). 11. The fence according to claim 9, characterized in that all four corners (28, 29) of the welded sleeve (4) are cut or cut, forming a loading hole or, if necessary, at the same time a passage opening (6, 20, 21). 12. The fence according to any one of claims 1 to 5, 7, 9-11, characterized in that in addition to the intermediate rods (10) receiving on both sides of the sleeve (4), as well as the supporting rods (2), the supporting hooks (8 , 9) one or a plurality of additional hooks (30) is additionally drawn through the wall (17) of the sleeve. 13. The fence according to claim 6, characterized in that, in addition to the intermediate rods (10) receiving on both sides of the sleeve (4), as well as the supporting rods (2), one or a plurality of additionally passed through the supporting hooks (8, 9) the wall (17) of the sleeve of the additional hooks (30). 14. The fence according to claim 8, characterized in that in addition to the intermediate rods (10) receiving on both sides of the sleeve (4), as well as the supporting rods (2), one or a plurality of additionally drawn through the supporting hooks (8, 9) the wall (17) of the sleeve of the additional hooks (30).

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