METHOD OF ROCK MASS DISINTEGRATION BY CROSSWISE CUTS Russian patent published in 2017 - IPC E21C27/24 E21D9/11 

FIELD: mining.

SUBSTANCE: rock mass is disintegrated in crosswise direction by heading-and-winning machine planetary-disc actuators. This is performed by serial intersecting cuts in radial-tangential and tangential-radial directions made by turn disc cutters, and also by tangential cuts by rotor comb cutters. Utilised heading-and-winning machine planetary-disc actuators consist of four rotary discs and rotor combs with cutters mounted thereon. The first and third disks desintegate the rock mass by cutting in radial-tangential and tangential-radial directions, the second and fourth discs desintegate the rock mass by cutting in the direction opposite to the first and third discs. The rotor combs desintegrate the peripheral part of the face with tangential cuts in form of concentric circles.

EFFECT: reducted specific energy costs, reduced number of small classes in blasted products, incresed life of transmission elements of mining machine, improved in stability of the machine.

3 dwg