FILLING MIXTURE COMPOUND Russian patent published in 2014 - IPC E21F15/00 

FIELD: mining.

SUBSTANCE: filling mixture compound including a binding agent, an inert filler and water, where the binding agent and the inert filler are made from ore benefication wastes, with a fraction size of not more than 20 mm, one part of which is subject to dry activation by preliminary agitation leaching, separation of a liquid phase, drying and activation in a disintegrator, and the other part is mixed with a leaching solution; the obtained pulp is activated in the disintegrator; the liquid phase is separated; a deposit is dried and a dry mixture of the compound is prepared, wt %: a binding agent - the specified product of dry activation 42, inert filler - the specified deposit 58; after that, water is added in terms of 280-290 l per 1 m³ of dry mixture; rotation speed of a working element of the disintegrator is at least 200 Hz.

EFFECT: achievement of sufficient strength at reduction of content of metals and cost.

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