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Study on Key Technologies of Coal Mine Main Fan Automatic Switchover with Ventilation Unceasing

Study on Key Technologies of Coal Mine Main Fan Automatic Sw...

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2010 Chinese Control and Decision Conference

作者： Xinzhong Wu~1,Xiaoping Ma~2,Zihui Ren~3 1.School of Information and Electrical Engineering,China University of Mining and Technology,Xuzhou,221008 2.School of Information and Electrical Engineering,China University of Mining and Technology,Xuzhou,221008

The currently-used mine main fan switchover is to stop the working fan first and then to start standby fan, which makes underground ventilation interruption during switching,and it is liable to cause gas concentration exceeding limits in high gas mine and threaten mine production *** on the thought of changing the fan on standby from cold standby to hot standby before switchover,a novel way of main fan switchover aiming at ventilation unceasing with the aid of ventilation network switchover is put *** the influence on ventilation system,ventilation interruption throughout switchover formerly can be improved to air flow rate fluctuation during ventilation network switchover *** ventilation stability during main fan switchover can be realized and potential safety hazard of gas concentration exceeding limits is eliminated *** to the relationship between the boundary condition for the safety running of main fan and the stability of ventilation system air flow rate studied in this paper, based on four louver air-door cooperative regulation,a control strategy for ventilation network switchover to realize ventilation unceasing during main fan switching was *** an automatic control system has been developed with *** operation indicates that the way of main fan switchover presented in this paper can deal with the deficiencies of the way currently-used,and it is important and significant for the safety of mine production.

关键词： Mine Main Fan Automatic Switchover with Ventilation Unceasing gas concentration Production Safety

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