Title: Importance of maintenance of barricades towards worked out areas during extraction and in case of mine fire

Abstract

RMU Rembas coal mines, with tradition of over 150 years in coal mining, experienced numerous mine fires, sometimes causing closing of entire mines for long period of time. Mine fires occurred very often, due to brown coal strong...

Title: Blasting development at drifting in underground coal mines

Abstract

Blasting in drifting at underground coal mines has to meet numerous requirements in safety and techno – economic efficiency. Meeting these requirements is possible only in case of choosing optimal parameters for actual conditions of blasting...

Title: Proposition of new indices and parameters for grain size classification efficiency estimation 

Abstract

In the paper are presented some from us proposed and defined new indices and parameters for technological efficiency estimation, applied to grain size classification operations. In the same time some today in the theory and...

Effect of particle size and liberation on flotation of a low grade porphyry copper ore

Abstract

This paper presents some investigation results about connection between degree of minerals liberation and flotation, responding to flotation plant “Veliki Krivelj”. There are two main degrees of liberation among the sulphide minerals and...

Title: The model of copper flotation managment

Abstract

The main technological indicators of copper flotation which determine the level of revenue per mass unit of processed copper are utilization and the content of copper in concentration.This study describes the economic-technological model of copper...

Title: Application of assignment problem in project realisation

Abstract

The assignment problem belongs to the group of optimization problems. This paper gives an example of using assignment problem solving for a process optimization in mining and mineral processing...

Title: Wastefre technology for processing smelter slag from Bor copper mine

Abstract

Smelter slag, a by-product of metallurgical processes, was made and dumped for over 100 years of ore exploitation in Bor Copper Mine. Smelter slag dumps with approximately 16.500.000 tons of slag and 700-1000 tons of...

Title: High gradient magnetic separation of dust outlets coming from rotary furnaces of the iron ore works siderit

Abstact

The contribution describes the results of high-gradient magnetic separation of dust outlets from rotary furnaces collected in electrofilter. The separation was performed by the both ways, the dry and wet ones at...

Title: Methods to assess the impacts of tailings dams on the groundwater system in South Africa

Abstract

The production of waste materials, such as tailings, from mining activities can have a significant impact on the environment. Most tailings dams contribute to the pollution of subsurface waters. Assessing the potential effect that the construction of a tailings dam will have on an area’s groundwater system is ...