METHOD OF SLURRY BACKFILLING Russian patent published in 2012 - IPC E21F15/00 

FIELD: mining.

SUBSTANCE: method of slurry backfilling includes preparation of filling mixture from slurry that is generated at production of potassium muriate. Then construction of filling retaining walls, supply of filling mixture into worked out chambers and their filling. Dewatered potassium muriate is added into the slurry as binding agent, the mass of which is defined by the expression: CaCl₂-0.57V_W, where V_w - water mass in slurry, t. Invention allows leaving solid and liquid part of slurry in solid condition in the filled chamber, the mixture can be transported at large distances that allows performing more complete filling of all slurry in the mine generated at dressing.

EFFECT: possibility to leave solid and liquid part of slurry in solid condition in the filled chamber.

1 dwg