METHOD OF DUST CONTROL ON TAILING DUMPS Russian patent published in 2022 - IPC E21F5/00 

FIELD: environmental protection.

SUBSTANCE: invention relates to methods of preventing formation of dust aerosols on dry beach of tailing dumps. Method of dust control on tailing dumps involves covering dusty areas of the beach with non-dusting material. Beach of the newly reclaimed tier of the map is covered without time delay for shrinkage of its massif. Shelter is a wind-absorbing grid of organic or synthetic threads with cell area of 4.1 mm² to 30.3 mm², square or hexagonal shape. Net is placed on the beach with gap of 100–110 mm above the surface of the beach of the map. Optimum area of grid cells, their shape and rational height of grid arrangement above the beach surface for specific process and climatic conditions are specified on the basis of specified limits preliminary experimentally. Shelter is composed of mesh web in the form of separate fragments fixed in rectangular floating frames. Frame is divided into sections and represents a grid of several strips. Strips consist of separate floats connected into a strong chain, with rigid connections to each other, with possibility of passage of person on frame for attachment of net and towing of sections by means of winch on dam or floating means.

EFFECT: reliable and effective reduction of dust release on dusty beach areas.

1 cl, 2 dwg, 1 tbl