Purpose. To substantiate drilling and blasting technologies allowing to reduce the amount of hazardous substances affecting the level of ecological safety during underground ore mining. Methods. The laboratory research of atmospheric air condition in the vicinity of mine were conducted by means of the physical chemical analysis.
The object of the study was apatite nepheline ore of the Khibiny deposits group and phosphate ore of the Abu Tartur deposit . For the development of beneficiation schemes and modes, complex studies were carried out on mineral and elemental composition, including optical methods of analysis, electron microscopy using automated mineralogical analysis , etc.
Mining is the practice of extracting ore, coal, clays, soils, or minerals from the ground for the purpose of using them. Mines have existed for thousands of years. In ancient times mines consisted of short tunnels dug into the sides of hills or mountains where veins of metals, minerals, or coal had been discovered on the surface.
The mining company Rio Tinto has lead the way in the use of this technology. They have been steadily expanding their giant autonomous ore hauling truck fleet for years and now currently use a fleet of 76 trucks at their mining operations in Australia.
Surface mining is done by removing surface vegetation, dirt, and, if necessary, layers of bedrock in order to reach buried ore deposits. Techniques of surface mining include: open pit mining, which is the recovery of materials from an open pit in the ground, quarrying, identical to open pit mining except that it refers to sand ...
Ore, a natural aggregation of one or more minerals that can be mined, processed, and sold at a profit. An older definition restricted usage of the word ore to metallic mineral deposits, but the term has expanded in some instances to include nonmetallics. Although more than 2,800 mineral species
Open pit mining is a type of strip mining in which the ore deposit extends very deep in the ground, necessitating the removal of layer upon layer of overburden and ore. In many cases, logging of trees and clear cutting or burning of vegetation above the ore deposit may precede removal of the overburden. The