METHOD OF RECLAMATION OF A WASTE DUMP WITH AN ENVIRONMENTAL FOCUS Russian patent published in 2023 - IPC E21C41/32 A01B79/02 

FIELD: mining.

SUBSTANCE: invention relates to the development of deposits by an open method and the restoration of areas disturbed by open mining, and can be used in the extraction of minerals and the reclamation of rock dumps. The method of rock dump reclamation includes step-by-step preparation of territories within the boundaries of a quarry and external dumps by sawing down tree trunks and shrubs, pulling out stumps, cutting wood pulp to a chip fraction by a mobile full-track chipper with a diesel-electric drive of the undercarriage and working equipment that allows you to throw chopped wood mass with a fan on the surface of the mining allotment, within the boundaries of the removed fertile soil layer. Laying waste in a dump, covering them with fertile soil layer and sowing grasses. Wood chips fed by screw feeder into the drum chipper to fraction wood flour mounted on the running base of a mobile full-track chopper. In the screw feeder, the wood pulp is dried with the exhaust gases of the diesel plant, then the wood flour is evenly sprayed with an aerodynamic flow through the honeycomb socket along the entry way of the full-track chopper. Then screw milling machine for removal of the fertile soil layer and loading it into motor transport perform averaging of wood flour in the removed fertile soil layer by the actions of the processes: removal of the fertile soil layer, transportation of the fertile soil layer by the intermediate conveyor and unloading it into the reloading storage hopper. Further, they are periodically transported by an unloading conveyor to vehicles.

EFFECT: improving of environmental efficiency of the backfilled rock heap covered with a fertile soil layer.

1 cl, 1 dwg