METHOD FOR TIER STOCKING OF GRAIN WASTES INTO SLUDGE POND DRAINED NEAR BASE OF BEACH ZONE Russian patent published in 2011 - IPC E02B7/06 

FIELD: construction.

SUBSTANCE: method includes creation of reservoir of the first tier by erection of primary dam, discharge of pulp from pulp line into reservoir of the first tier with arrangement of beach zone of wastes upstream primary dam, and a settling pond is developed at the distance, serial creation of reservoirs of upper tiers by erection of previous tier of raised dam each time on the inwash beach, and discharge of pulp from pulp line into tier reservoir every time with arrangement of beach zone of wastes upstream raised dam and preservation of settling pond. At least in front of one raised dam a fore apron is created, which provides for creation of aerated zone between itself and base of beach zone in wastes, specified under the conditions of dimensions safety. Fore apron is created by mudding near surface of beach of wastes layer inwash with highly dispersed (microdispersed) silicon dioxide, which after termination on section of pulp discharge is applied onto surface of inwash beach in specified amount in the form of water-colloid suspension layer. This suspension is applied after cold season of the year and arrangement of frozen crust near surface of inwashed beach, providing for performance of works, and pulp discharge is recommenced after warm season of the year and melting of snow inwash on the beach, producing water, which carries silicon dioxide into layer of wastes.

EFFECT: savings of funds and simplification of works.

3 cl, 2 dwg