RU65969U1 - DEVICE FOR WATER BLOCK - Google Patents

Abstract

The utility model relates to mining, namely, safety during operations, and can be used to localize gas explosions and dust-gas mixtures in mine workings.

The technical result of the utility model is to reduce the complexity of installation and maintenance of the water barrier.

A device for a water barrier is proposed, comprising a supporting beam 1 with its fastening elements 2 in a mine working, vessels 4 of elastic material with nozzles 5 for pouring water into them, plugs 6 for the nozzles and elements for fastening the vessels on the supporting beam.

The essence of the utility model is that the vessels 4 are equipped with eyes 8, placed along their perimeter, and means for connecting the vessels to each other, while the nozzles 5 for pouring water are placed in one of the corners of the vessel.

The device makes it possible to limit the installation in the cross section of the mine working one bearing beam with subsequent hitching and the connection of vessels with the beam and between each other on different sides in height and width of the mine. This allows you to reduce the installation of the barrier up to two times and limit the maintenance of the water barrier only by visual inspection of the filling of vessels with water in their shape.

1 zpf 2 ill.

Description

The utility model relates to mining, namely, safety during mining, and can be used to localize explosions of gas or dust and gas mixtures in mine workings.

A device for a water barrier, containing a vessel of elastic material, the surface of which forms a circle. On the edges of the circle there are holes through which the suspension is passed in the form of an infinite flexible connection, forming two equal bundles of loops mounted on the arms of the bracket (copyright certificate for the invention No. 1305389, class E21F 5/00, published on 04/23/1987, B. No. 15 )

During the explosion, the vessel deviates, the tension of the removed loops loosens and they slide off one shoulder, the vessel opens and the water inside it is dispersed by the shock wave into the mine.

The main disadvantage of the known device is the low reliability of operation, as a result of which the vessels can be discharged by a shock wave onto the production soil or not open. In addition, the design of the vessel contributes to the intensive evaporation of water from it.

Known devices for water barriers, made in the form of water pockets of a special plastic film with weakened places (J. "Gluckauf", 2002, August, No. 2 (3), p.22-23). The known water barrier comprises a square cross-sectional pipe fixed to a mine, to which water pockets are attached, having valves (nozzles with plugs) for pouring water and means for securing the pockets to the pipe. Due to the above-mentioned properties of the film, its thickness and special formulation, the film is easily destroyed under the influence of an explosion shock wave, but at the same time it has sufficient strength and durability. Compared to conventional water barriers, the system

Explosion protection “Water pockets” has the following advantages:

higher reliability of protection;

lack of evaporation of water;

reusability.

The main disadvantage of the known device is that the design of the vessels does not provide for the possibility of connecting them together both in height and in the width of the mine, where a water barrier is erected. In this regard, it is necessary to install several load-bearing beams in the working section with constant monitoring of the gaps between the vessels and between the vessels and the walls of the working.

The technical result of the utility model is to reduce the complexity of installation and maintenance of the water barrier.

A device for a water barrier is proposed, comprising a supporting beam with its fastening elements in a mine working, vessels made of elastic material with nozzles for pouring water into them, plugs for pipes and fastening elements of vessels on the supporting beam.

The difference of the proposed device is that the vessels are equipped with eyes placed around their perimeter, and means of connecting the vessels to each other.

Another difference is that the nozzle for pouring water is placed in one of the corners of the vessel.

The proposed design of the vessels allows us to limit the installation in the section of the development of one supporting beam with a further sample of vessels and connecting them together in height and width of the output. The design of the screen allows you to simplify the installation process and reduce maintenance costs.

The essence of the utility model is illustrated by the drawing, where Fig. 1 shows a vessel, and Fig. 2 is a general view of a device for a water barrier in a section of a working out.

The device for the water barrier contains a supporting beam 1 of square or circular cross section, mounted under the roof of the mine

using anchors 2. The connection of the anchors with the beam can be done using bushings 3.

The vessels 4 are made of an elastic material, for example, a plastic film, and are hermetically sealed around the periphery. To fill the water, each vessel has a pipe (valve) 5 located in one of the corners of the vessel, which is equipped with a plug 6. On the perimeter of each vessel in the zone of the sealed joint 7 there are eyelets 8, which for strength can be reinforced with metal clips.

To install the device for the water barrier in the mine, a longitudinal support beam 1 is installed, which, using anchors 2, is fixed under the roof. The first row of vessels 4 is hung on the supporting beam, which are connected with the beam and with each other using brackets or ties 9 threaded into the eyes 8. Vessels in the working out are positioned so that their nozzles 5 for pouring water are located in any of the upper corners. Moreover, taking into account the permissible clearances, the vessels 4 with the long side are placed either horizontally or vertically. If necessary, the second and subsequent rows of vessels are positioned similarly and attached to the lower eyelets of the vessels of the upper row.

The connection of the vessels with each other provides sufficient stiffness of the screen even with a cantilever arrangement of part of them. After installing the device, pour water into the vessels through the nozzles 5 and install the plugs 6.

When an air-gas mixture explodes, the shock wave destroys the vessels and disperses the water from them into the mine, creating a water curtain with a given density of water aerosol. The time of creation of the water curtain is commensurate with the time of the approach of the flame to it.

The “flat” shape of the water vessels does not contribute to the deposition of dust and dirt on them, which can lead to the loss of protective properties. During the experiments, 100% overlap of the cross section of the cloud production of sprayed water was achieved at various

sectional shape. The possibility of suspension of vessels with different sides in length along the entire production cross-section using a single supporting beam makes it possible to reduce the laboriousness of installing a barrier up to two times, and the connection between the vessels makes it possible to limit the maintenance of the water barrier only by visual control of filling the vessels with water according to their shape.

Claims (2)

1. A device for a water barrier, including a supporting beam with its fastening elements in the mine working, vessels of elastic material with nozzles for pouring water into them, plugs for pipes and fastening elements of vessels on the supporting beam, characterized in that the vessels are equipped with eyes placed along the perimeter, and by means of connecting vessels between themselves. 2. The device according to claim 1, characterized in that the pipe for pouring water is placed in one of the corners of the vessel.