METHOD FOR PASSING SOLID ROCKS AT WELLS AND TUNNELS DRILLING BY ROCK MELTING METHOD Russian patent published in 2013 - IPC E21B7/14 E21B7/18 E21C37/16 

FIELD: mining.

SUBSTANCE: process of rock melting is done by heading set of equipment that melts the rock, separates the central core of the rock and removes it from well and tunnel. Heading set of equipment consists of a group of mechanisms made in a form of three supporting sections interconnected by movement mechanisms, one melting section that melts the rock by gas burners and drain cylinder, where melted rock flows. Gas burners are regularly engaged filling the cavity with burning gas that melts the rock in annular zone till liquid condition at specified depth. Then the burners are disengaged, compressed air or other compound is supplied in turns into movement mechanisms of each supporting section, heading set of equipment is moved forward from one position to the other with simultaneous squeezing of melted rock out through the discharge pipe into drain cylinder and exhaust gas is released by gas discharge tubes.

EFFECT: efficiency increase.

2 cl, 11 dwg