EFFECT OF GAS-SATURATED ROCK MASS FRAGMENTATION ON ITS HEAT-EXCHANGE WITH AMBIENT METHANE-AIR ENVIRONMENT

Details

Parent Category: Geo-Technical Mechanics, 2014

Category: Geo-Technical Mechanics, 2014, Issue 117

UDC (622.817:622.812:622.807)

Authors:

Golinko V.I., D. Sc. (Tech.), professor (State H E I «NMU»)

Yavorskyy A.V., Ph.D. (Tech.), Associate Professor (State H E I «NMU»)

Lebedev Ya.Ya., Ph.D. (Tech.), Associate Professor (State H E I «NMU»)

Yavorskaya Ye.A., Ph.D. (Tech.), Associate Professor (State H E I «NMU»)

Abstract.

The article presents results of research on improving mining safety when gas-saturated rocks are broken by operating members of mining and tunneling machines. Fields of effective use of methods and means for preventing explosions of dust-methane-air mixtures are defined.

A mathematical model of formal description of heat transferring to the surrounding methane-air environment by hot surface was developed and theoretically substantiated.

Dependences were established to determine amount of heat accumulation and transfer to the surrounding methane-air environment by surface of interacting cutting tools with gas-saturated rocks, and to calculate duration of the heat transfer from combustible mixture with taking into account induction properties of the methane-air environment.

Keywords:

gas-saturated rock, heat exchange, methane, cutter.

References:

1. Кrеstovozdvizhenskiy, P.D. (2011), “Increasing the strength of the tangential rotary cutters of mining shearers”, Ph.D. Thesis, Mining Machines, Kuzbass State Technical University, Novokuznetsk,  Russia.

2. Shevtsov, N.R. (2002), Vzryvozashchita gornykh vyrabotok (kurs lektsyy) [Explosion protection of mine workings (lectures)], 2nd ed., Donetsk National Technical University, Donetsk, Ukraine.

3. Tkachuk, S.P., Kolosyuk, V.P. and Ihno, S.A. (2000), Vzryivopozharobezopasnost gornogo oborudovaniya [Explosion and fire safety of mining equipment], Osnova, Kiev, Ukraine.

4. Sofiyskiy, K.K., Gavrilov, V.I. and Vlasenko, V.V. (2013),“Gas-saturation reduction in the flat coal seam i₃¹  by applying hydrodynamic impact”, Geotekhnicheskaya Mekhanika [Geo-Technical Mechanics], no. 111, pp. 90 – 99.

5. Moiseenko, M.A. (2012), “Mathematical modeling of non-stationary temperature fields and stresses in parts of disc brake due to the pulsating application of thermal rating”, Abstract of Ph.D., Dynamics and strength of machines, devices and equipment,  Orel, Russia.

6. Hebda,M. and Chichinadze, A. (1989), Spravochnik po tribotehnike, [Triboengineering handbook], in Hebda,M., Chichinadze, A. (ed.), V.1. The theoretical foundations, Mashinostroenie, Moscow, Russia.

7. Davies, A.W., Isaac, A.K., Cook, P.M. (2000), “Investigation of a coal mine explosion and relevance of risk assessment”, Trans Inst Min Metall 109 (May-Aug)(Sect A), pp. A61–A69.

About the authors:

Golinko Vasiliy Ivanovich,Doctor of Technical Sciences (D. Sc), Professor, Head of the Aerology and Labor Protection Department, 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. .

Yavorsky Andrey Vasilyevich, Candidate of Technical Sciences (Ph.D), Associate Professor of the Underground Mining Department, State Higher Education Institution «National Mining University» (SHEI «NMU»), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Lebedev Yakov Yakovlevich,Candidate of Technical Sciences (Ph.D), Associate Professor of the Aerology and Labor Protection Department, State Higher Education Institution «National Mining University» (SHEI «NMU»), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Yavorskaya Yelena Aleksandrovna, Candidate of Technical Sciences (Ph.D), Associate Professor of the Aerology and Labor Protection Department, State Higher Education Institution «National Mining University» (SHEI «NMU»), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

• < Prev
• Next >