COMBINED ORGANIC PLUG Russian patent published in 2012 - IPC F42D1/08 

FIELD: mining.

SUBSTANCE: combined organic plug comprises a spacer part in the form of a cylinder, in the cavity of which a spacer cone is inserted, connected to a cable traction. At the same time the cylinder is made in the form of a jacket from a soft material, for instance, from a dense cloth, the upper part of the jacket is equipped with a split ring from elastic material along well diameter, and the lower one - with a cord, the spacer cone is made of organic material, for instance, from plastic mass or wood, with a bore in the central part, and a filling part, for instance, from bore mud, is placed into the jacket and on top of the spacer part.

EFFECT: increased reliability of detonation productions enclosure in a charging cavity to the moment of complete destruction of adjacent rocks with a combined plug.

2 cl, 3 dwg