DETERMINATION OF METHANE CONCENTRATION IN THE STREAM OUTGOING FROM THE BLIND DRIFT

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Parent Category: Geo-Technical Mechanics, 2013

Category: Geo-Technical Mechanics, 2013, Issue 110

UDC 622.45

Stolbchenko Ye. V., Ph.D. (Tech.) (SHEI «NMU»)

Annotation. In order to feed air into preparatory roadway of the blind drift a vent system of local ventilation is used, basic elements of which are booster fan (BF) and vent pipeline. Basic calculated technological parameters for choosing proper equipment are air consumption and pipeline diameter and length.

In this article, issues on specifying basic characteristics for the ventilation systems in the blind drifts are considered with taking into account concrete aerodynamic characteristics of the booster fans. Practical value of the work lies in designing of an universal model of ventilating system in the blind drift, which allows using of all compound sources of the draft and pipeline at various modes of airing. In the article, methane concentration of the outgoing stream in the blind drift is defined with the help of differential equations.

Keywords: airing, ventilating pipeline, deadlock development.

References:

1. State committee of ukraine for control of labour protection (1994), LAGA 10.0-7.08-93. Kerivnytstvo shchodo proektuvannya ventylyatsii vugilnykh shakht [LAGA 10.0-7.08-93. Design Manual ventilation of coal mines], State committee of ukraine for control of labour protection, Кiev, Ukraine.

2. Pravila bezpeky u vugilnykh shakhtakh (2000), Safety in Coal Mines, Kiev, Ukraine.

3. Ushakov, K.Z., Burchakov, A.S., Puchkov, L.A. and Medvedev, I.I. (1987) Aerologiya shakht [Aerology of mines], Nedra, Moscow, USSR.

4. Vygodskiy, M.Ia. (1977), Spravochnik po vysshey matematike [Handbook of higher mathematics], Nauka, Moscow, USSR.

About the authors:

Stolbchenko Elena Vladimirovna, Candidate of Technikal Sciences (Ph.D), Associate Professor of Department Aerology and Protection Of Labour, State Higher Educational Institution “National Mining University” (SHEI “NMU”), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

 

 

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