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.
Mining is closely connected with the impact of mankind on the environment for the purpose of supply with primary resources. When ultimate production of mineral resources is more than 6,5 billion tonns, total losses comprise 2,5 billion tonns: discharge of rupugnant substances into the air is about 50 million tonns, effluents discharge is 2 billion m3 and more than 8 billion tonns solid wastes are stored on the surface. By scientific school of SPMI series of measures aimed at protectoin of environment from harmful impact of technological processes during open-cast mining and underground operation of coal, which is the most popular power resource for today is carried out. In future coal will be one of the main resources, as it’s supply may satisfy the needs of all branches of industry for a long period.
