Abstract

M. I. Tulepov^1,2, Z. A. Mansurov^1,2, Yu. V. Kazakov^1,2, F. Yu. Abdrakova^1,2, Z. L. Sultanova¹, N. M. Rakhova^1,2, S. S. Madiyev ¹, O. Yu. Golovchenko^1,2, L. R. Sassykova^1,2, D. M. Tolep¹, N. Chikhradze³ and M. N. Chikhradze³

DOI : http://dx.doi.org/10.13005/ojc/340645

The aim of the study was to develop methods to reduce the penetration ability of the flame front and red-hot striking elements that propagate in the confined space of mines. In the article is considered a method for localizing explosions of a methane-dust mixture in coal mines, by creating an aqueous barrier (increased density) in the propagation path of the flame front and incandescent particles, using a high-energy pyrotechnic composition based on nanoaluminum. The optimal pyrotechnic composition contents of ammonium nitrate  - 50%, smokeless powder - 45%, magnesium - 3% and nanoaluminum - 2%. This composition punched the target to a depth of 6.5 mm with a barrier thickness of 50 mm. Water cannon with a nozzle with a diameter of 80mm, allows to localize the spread of the flame front.

Magnesium; Nanoaluminum; Pyrotechnic Composition; Smokeless Powder

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