SU1213213A1 - Method of airing mine workings - Google Patents

Description

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12:

The invention relates to the mining industry, in particular, to valves and mining areas of mines, and can be used for ventilation in all mines where a mining system is used.

The purpose of the invention is to increase the efficiency of airing the treatment area of mining sites by preventing contaminated air from the exhaust chambers from entering the stream of fresh air.

The drawing shows a diagram explaining the method of ventilation of mine workings.

The diagram contains a driving track 1, a working chamber 2, spent chambers 3, a ventilation drift 4, a local ventilation fan 5 and jumpers 6,

The method of ventilation is carried out as follows.

Fresh air from excavation drift 1 due to overall depression

Editor A. Kozoriz

Compiled by L.Serova

TehredM.GergelKorrektor E.Roshko

Order 762/44. Circulation 436 Subscription

VNIISH State Committee of the USSR

for inventions and discoveries 113035 ,. Moscow, Zh-35, Raushsk nab., D.4 / 5

Branch 1Sh11 Patent, Uzhgorod, ul Iroktna, 4

32133

and a ventilator of the local blower 5 enters the working chamber 2, aerates it, and the polluted air is removed through a ventilation drift 4,

At the outlets of the exhaust chambers 3 at an angle of 16-30 to the axis of the ventilation drift, jumpers 6 are installed. When air moves along the ventilation drift 4, the jet is disrupted from the edge of jumper 6, as a result of which the jumper creates a discharge, i.e. with lower pressure compared to the pressure on the excavation drift 1. Due to this, air leaks from the excavation drift 1 through the exhaust chambers 3 to the ventilation drift 4f, which increases the ventilation efficiency of the cleanup zone of the mining site, since recirculation air. By changing the jumper setting angle, the air flow rates through the spent chambers change.

Claims (1)

METHOD FOR AIRING MINING WORKS, including installing jumpers in the exhaust chambers, supplying fresh air through the extraction drift to the working chambers, and removing contaminated air through the ventilation drift, which differs in that, in order to increase the efficiency of ventilating the treatment area of mining areas by to prevent the ingress of contaminated air from the exhaust chambers into the fresh air stream, jumpers are installed in the ventilation drift at the outlet of the exhaust chambers at an angle to the axis of the ventilation drift and regulate the air flow through the exhaust chamber by changing the angle of the jumper from 16 to 30.