The inevitable depletion of mineral resources, the constant deterioration of the geological and mining conditions for the development of mineral deposits and the restoration of raw materials from mining waste by recycling are all urgent problems we face today. The solution to this problem may ensure: a considerable extension of raw material source; decrease of investments in opening new deposit...

The article considers problems of a transport complex mining and processing plants. Requirements for quarry are presented. production process technological operations the transportation considered. ways solving determined. It is established that when creating rational system transporting iron ore raw materials, it possible to reduce material costs losses during transportation.

Today's world requires controlling the process of power consumption and supply. The control system should respond proactively preventively to external disturbances. Among such disturbances for iron ore mining enterprises, most significant are changes in technology operating modes stationary receivers, taking into account costs. General methodological approaches forming models that relate indice...

The risks in the evaluation of mining projects are directly related to the probability of errors in the estimates, and, as the estimates are based on sampling results, this activity must be performed in a careful and planned way, to prevent surprises at the beginning of operation. To validate the representativeness of the borehole samples selected for the mineral processing studies, the geologi...

Two new species of Leptokoenenia Condé 1965 (Eukoeneniidae: Palpigradi), Leptokoenenia pelada sp. nov. and Leptokoenenia thalassophobica sp. nov., are described based on both male and female specimens collected in iron ore caves from the Brazilian Amazon. This is the first record of the genus for the Americas. Furthermore, a new combination is stated for Eukoenenia gallii based on its morphology.

A fundamental study was carried out on the high-temperature zone flow resistance during iron ore sintering. In present work, firstly, quartz sand was used to replace iron ores to investigate the impact of temperature if bed structure has no change; then a three-layer bed structure was used to explore the primary factors controlling high-temperature zone structure for airflow. The zone where tem...

Mining is the process of extracting a naturally occurring material from the earth to derive a profit. Operations research has been used in mining primarily to make decisions about when and how to perform both surface and underground extraction with respect to how to recover the material and what to do with the extracted material. Because machines are used to extract the ore, decisions about whi...

The paper describes the main drive systems of an iron ore pelletizing plant and related important design aspects. It is shown how today’s drive systems provide the desired flexibility for the process and lead to high energy efficiency and system reliability. With respect to electric drives expansion projects have many technical issues in common with green-field installations. However, there are...