RU15753U1 - AUTOMATIC DEVICE FOR SUPPRESSING FIRE IN MINING MINES - Google Patents

Abstract

An automatic device for suppressing fires in mine workings of mines, including two cavities of a cylindrical body filled with a powder inhibitor, and a single chamber between them with an explosive charge with a detonator, remote from the inhibitor with protective easily removable partitions, characterized in that at the exit from the oppositely directed cylindrical trunks installed diffusers and screw surfaces for the initial volumetric spraying of an extinguishing powder inhibitor over the cross section of the mountains nd generation.

Description

AUTOMATIC DEVICE FOR FIRE-FIGHTING FIRE IN GOOD MINES PRODUCTION

The utility model relates to mining and can be used as a shale barrier to suppress explosions of methane and coal dust at the initial stage.

A fire suppression device is known that is implemented in a method of isolating an emergency section during underground mining, including a closed folding formwork installed in a niche, consisting of metal gratings and breathable

fabrics and filled with solid filler. (.SSSR L 1668693, I99I g).

A disadvantage of the known device is that it does not have an inhibitory effect at the stage of occurrence and development of methane and coal dust explosions, i.e. It does not actively contribute to suppressing fires at the initial stage of the formation of a fire source.

Also known device DTEY localization of gas explosions in mines, including a cylindrical body filled with a powder inhibitor, and an explosive charge separated from the inhibitor by foam rubber partitions. (Autosvid.SSSR and 1543908, class, E21 P 5/00, 1990).

The disadvantage of this device is that, while providing an enhancing effect, it nevertheless does not impede the passage of shock waves and toxic products of combustion and explosion. 21 P 5/00

BOB in existing mines, which reduces the safety of labor. A similar purpose is performed by the device for suppressing fires according to the patent of the Russian Federation 2086771, 1995, RosNShGD).

The aim of the invention is to increase labor safety in mines and expand the operational capabilities of the impact on the developing foci of combustion in the initial herd.

This goal is achieved in that in the fire suppression device, including two oppositely directed cylindrical bodies filled with a powder inhibitor

and a single chamber located by them, a chamber with an explosive charge with a detonator, separated from the inhibitor by protective easily movable plugs (partitions), combined diffusers and screw surfaces for volumetric atomization of the inhibitor along the mine cross section are installed at the outlet of the barrels.

The proposed set of distinguishing features allows us to provide the necessary inhibition of combustion and explosion processes over a short distance of developing the initial stage of development with remote inclusion of the device - a powder barrier. It can be used as a shaper, for example, in conveyor mine workings.

The figure shows a longitudinal section of a device for suppressing fires in mine workings of mines in running order.

separated from the powder inhibitor by plugs 7 and transport wads 8, diffusers 10 and screw surfaces II are installed on the pylon rods 9 at the exit from the shafts to disperse the powder flow over the mine cross section (not shown). The charge of the explosive 5 in the charging chamber 4 is carried out in the housing IZ by means of a wrapping

fabric is. Remote communication with a temperature sensor (not shown) is provided by a wired connection 14 of the device.

Automatic device for suppressing fires in mine workings is as follows.

If there is an explosion of methane or coal dust from a pulse of a flame sensor (not shown) located in the explosive zone of the mine, through a wired connection, an electric detonator 6 is triggered, which detonates the charge of the explosive 5 or sets fire to the gas-generating squibs (second embodiment of the device). Under the action of excess pressure of the generated gases, plugs 7 and transport wads 8 are displaced (ejected) towards containers with a powder inhibitor 3, which is blown out

through the diffusers 10 and screw surfaces II into the mine, where they are volumetric sprayed over the entire cross section, suppressing the explosion of methane or coal dust. Explosive powder PVK-1 was used in experimental samples.

To prevent explosions of coal dust, the Charter of the State Fire Service of Ukraine requires that the workings adjacent to the fire source be flared for 100 m. Such work can be performed.

using the proposed automatic devices equipped with HBK-I extinguishing powder, which evenly through

50 m are suspended in workings adjacent to the focus and are driven by an explosive machine.

This device can be used for fire and explosion protection of mine facilities, for example, conveyor belts and workings equipped with them, as well as to increase the level of safety during blasting in preparatory faces.

The proposed utility model of the device makes it possible to quickly act on the flame of a propagating blast wave by highly effective extinguishing powders.

This makes it possible to suppress foci of ignition already at their initial stage of development, and silently suppress the occurrence of a fire in a timely manner, which ensures an increase in labor safety in mines.

A.E. Chuprikov

A.S. Golik V.M. Kondakov

V.Ya.Shel

Claims (1)

An automatic device for suppressing fires in mine workings of mines, including two cavities of a cylindrical body filled with a powder inhibitor, and a single chamber between them with an explosive charge with a detonator, remote from the inhibitor with protective easily removable partitions, characterized in that at the exit from the oppositely directed cylindrical trunks installed diffusers and screw surfaces for the initial volumetric spraying of an extinguishing powder inhibitor over the cross section of the mountains nd generation.