Yu.V. Gorlov, Cand. Sci. (Eng.), General Director, gorlov@mvkmine.ru ZAO IDC on ES within the AMS, Moscow, Russia N.L. Razumnyak, Dr. Sci. (Eng.), Lead Researcher STC «Industrial Safety» CJSC, Moscow, Russia
Safety threat in the mines is the presence of explosion hazardous methane and coal dust concentrations. Occurred explosion can be stopped by the only way: by stopping the flame front that is propagating along the workings. When the flame front is extinguished (localized), the explosion without the new energy feed will cease in a natural way, and the blast wave will die out at a limited length of the mine working. Otherwise, the blast wave of the non-localized explosion will lift up coal dust deposits, and the flame front will cause new more violent explosions — up to the detonation and destruction of the entire mine. Consequently, the usage of any devices aimed only at reducing the damaging factors of the explosion and not ensuring its localization is meaningless and not efficient. To ensure explosion protection the Automatic system for explosion suppression (explosion localization) ASVP-LV.1M was developed and implemented in 2005. The system surpasses the world analogues, which is confirmed by the tests in Russia, Ukraine and China. Over the years of ASVP-LV.1M application it has proved to be simple in operation and reliable device for explosion protection. The system localized real explosions in coal mines. For example, the automatic barrier actuated efficiently in the time of explosion of methane and coal dust at Vorkutinskaya Mine in 2013. At present, new modification of ASVP-LV.MF has been developed on the basis of ASVP-LV.1M. It is delivered for work in the scope of the multifunctional safety system of coal mines. Implementation of ASVP-LV.MF allows to meet all the requirements of the regulatory documents related to blast protection equipment. In future it is planned to create the systems with various remote sensors: shock wave, infrared radiation of explosion, mine atmosphere control. It is also planned to create an advanced information system that allows more efficient control over the explosion protection triggering, thereby localize the explosion reducing to the theoretical minimum the impact of its harmful and damaging factors.
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