RU30842U1 - Fire extinguishing device in deviation mining - Google Patents

Description

STAFFING DEVICE (APA IN SLOPING MINING)

A useful device model relates to mining and can be used to extinguish underground fires, mainly in mining domes.

A known method of extinguishing a fire in a dome of mining, including introducing perforated pipes into the dome to suck fire gases through them, burning combustible components and disposing of combustion products, creating a foam barrier plug in the emergency section. (RF patent No. 2136889, CL E 21 F 5/00. 1999).

The disadvantage of this method lies in the difficulty of its implementation due to the presence of a number of unique equipment (parachute bridge, airtight ceiling, gasifier, afterburner, etc.). The installation for erecting an isolation bridge according to the RF certificate for utility model 17569, cl. E 21 F 5/00, 2000.

The purpose of the utility model is to increase the effectiveness of car prevention and extinguishing in domes of mountain deviations.

This is achieved by the fact that in a device for extinguishing fires in a sloping mine working area containing a pressure head foam generator and an air-foamy barrel located beneath it with a plane-jet nozzle, and the resulting foam. Of low multiplicity is transported by a stream on the surface of a jet of low-level foam to the emergency zone, the area of the endogenous mine fire is isolated by a double quickly driven formwork, an opening pipe is installed from the side of the existing mine, and a foam generator is connected to it, from additional of pressure

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the foam generator’s patrol laid a pipeline to a fire peak embedded in the zone of the emergency dome of the mine and the dome and the mine were filled with an active foam plug, to neutralize active combustion, the foam is formed with a phlegmatizing additive in the form of 114B2 freon, which is made in the device by means of a flow meter into the foam mixer on the capacity of the foaming agent, having an exit to the foam generator from the fire sprinkler pipe of the mine, while the opening pipe is equipped with a shutter to exit the foam in an accident remote control area on the side of the existing mine.

The proposed set of distinguishing features of the utility model has a useful property, which consists in the complete isolation of the emergency section from existing workings and the elimination of the danger of emission of combustion products, harmful gases from the dome, while ensuring the safety of fire elimination operations by introducing into the Freon 114B2 zone.

The figure depicts a technological scheme for the implementation of the device in action.

The technological scheme is illustrated by the following main positions: 1-layer hydrophobic emulsifier foam; 2-hole pipe of the insulating jumper; 3-perforated pipe section along the mine; 4-pipe supply of a hydrophobic emulsifier; 5 installation pressure foam generator Screen; 6-hose feed solution of the foaming agent; 7-capacity foaming agent; 8-foam mixer; 9 hose of delivery of freon 114B2; 10-flow meter hpadona; 11-branch pipe from the fire-irrigation pipeline; 12-pipe piping for supplying compressed inert gas; 13-fire and irrigation pipeline; 14 adjustable removal of the foam generator; 15-quickly erect a jumper in May; 16-foam high; 17-inert foam feed sleeve; 18-peak fire; 19-fire center; 20-zone filling foam plug; 21 foam plug of emergency section; ; 22-DBOI formwork of an emergency site; 23-isolated space; 24-hole liquid discharge pipe.

A useful model of the device operates as follows.

In the event of an endogenous fire due to coal self-ignition in the destroyed massif of the fixed space, namely, in the casing of the mine at the borders of the fire of an inclined mine (slope), a double jumper is erected

quick-formwork formwork 15 and 22 Sail (designed by RosNIIGD) with installation of an opening pipe 2 and an air-foamy barrel with a flat-jet nozzle 3. At the same time, fire peak 18 is introduced into the mine dome with its sleeve 17 connected to an additional pipe 14 of the opening pipe 2, to which connect the foam generator pressure unit 5 Screen with the corresponding connection through the outlet pipe 11 to the fire-irrigation pipe 13, and sleeve 12 to an underground nitrogen gasifier, for example KOMBI (set of equipment m hanizatsii and safe isolation RosNIIGD structure), which also incorporates the reservoir from Halocarbon 114b2 to be used when applying foam excavation dome for phlegmatization explosion (ejection).

The operation of the foam generator 5 and the supply of a hydrophobic emulsifier through the pipe 4 to the flat-jet nozzles 3 are carried out simultaneously. The initial supply of inert foam must be carried out when an additional phlegmatizer is introduced into the inert foam, for example, Freon 114B2 from the COMBI underground gasifier tank. A layer of inert foam at the same time enters (displaces) the volume of the fire in the mine E and creates a foam plug 21 in the space between formwork 15 and 22. Inert foam 16 is easily transported to layer 1 of a hydrophobic emulsifier, in

as used, HanpMfviep inert dust. The liquid dispersed phase (foam syneresis), together with low-level foam 1, is discharged through the flow pipes 24 by the formwork 22 into the isolated space 23 of the mine. After the displacement of fire gases through an airtight formwork and exposure to cooling the time zone from the side of the existing mine, the isolated space of the mining dome 19 is controlled.

The delivery of HFC 114B2 is controlled by a flow meter 10, which is introduced into the composition by the foaming agent of the mixture through the foam mixer 8, while

the pressure supply of the combined inert foam along the sleeve 17 is provided by overlapping. foam exit shutter through

opening pipe 2.

The proposed technical solution of the utility model improves the safety and efficiency of mine rescue operations, and reduces the time it takes to extinguish a fire in a sloping mine.

Patent specialist

The authors:

R.V. Dikova

S.A. Balloons

V.V. Myachin A.E. Chuprikov A.S. Golik

Claims (2)

1. Fire extinguishing device in a sloping mine working area, comprising a pressure foam generator and an air-foamy barrel with a flat-blasting nozzle located under it, characterized in that the active zone of the emergency section of the sloping mining work is isolated by a quick-release formwork, an opening pipe with a pressure foam generator is installed in it, under he installed an air-foamy barrel with a nozzle for supplying a low-level hydrophobic emulsifier in the emergency production zone, from the additional pressure nozzle of the foam generator laid a pipeline to a fire peak embedded in the zone of the emergency dome of the mine, and the dome and mine were filled with an active plug foam, while to neutralize the active combustion, the foam is saturated with a phlegmatizing additive in the form of Freon 114B2, which is made with a flow meter into the foam mixer on the tank a foaming agent having access to the foam generator from the fire and irrigation pipeline of the mine. 2. Fire extinguishing device in a deviated mine working according to claim 1, characterized in that the opening pipe is provided with a shutter for foam exit to the emergency section with remote control on the side of the working mine.