In places of possible allocation of a dust, near sources of it`s formation or at allocation places ways of dust-depressing now are applied. Principal views of dust-depressing are: a water irrigation (including, the ionized water), an irrigation steam (fog), a foamy irrigation (aerofoams, air-mechanical foams). In arcticle the aerofoamy way of dust-depressing, the dust fraction based on coagulation in an air stream is considered at aerofoam application.
The article considers the problem of size distribution of grain-size composition of the blasted rock mass, rock fragments blasted rock mass and rock blockiness. The logarithmic-normal distribution law is laid down for all blasted granite mass products. It was proved, that logarithmic variance of logarithmic normal distribution law of the fractured rock mass fragments’ distribution is a structural invariant on the level of statistical universe of the block and fragments.
In places of possible allocation of a dust, near sources of its formation or at allocation places ways of dust-depressing now are applied. Principal views of dust-depressing are: a water irrigation (including dispersing, the ionized water), a foamy irrigation (aerofoams, air-mechanical foams), an irrigation steam (fog). In article condensation of steams of water on a surface of hygroscopic particles is considered stream-condensation way of dust-depressing, based on action.
Mineral extraction is closely connected with the processes of human impact on the environment in order to provide raw materials and their partial loss. With the total extraction of mineral resources exceeding 6.5bn tons, the total losses in the subsoil amount to 2.5bn tons: about 50bn tons of harmful substances are emitted into the atmosphere, more than 2bn m3 of polluted waste water is discharged into water bodies and more than 8bn tons of solid waste is stored on the surface of the earth. The scientific school of SPGGI is developing a set of measures to protect the environment from the harmful effects of technological processes in open-pit and underground coal mining, which today is a demanded natural energy resource, and in the future will become one of the main ones, as its supply can satisfy the needs of all industries for several hundred years.