Rudarski radovi br 4 2011 - Institut za rudarstvo i metalurgiju Bor

MINING AND METALLURGY INSTITUTE BOR YU ISSN: 1451-0162<br />
COMMITTEE OF UNDERGROUND EXPLOITATION OF THE MINERAL DEPOSITS UDK: 622<br />
UDK: 669.952:622.7 (045)=20<br />
Branislav Čađenović * , Bojan Drobnjaković * , Dragan Milanović * , Srđana Magdalinović *<br />
NEW LABORATORY PLANT FOR GRANULATION USING THE<br />
CHANGED TECHNOLOGICAL PROCESS OF<br />
SMELTER SLAG DISCHARGING **<br />
Abstract<br />
Tailing and slag dumps, as a source of large quantities of metals, are of increasing economic<br />
importance. Slag in the plants of RTB is processed in a plant which is not designed for slag processing,<br />
but only adapted to those conditions. The obtained results are worse than the expected<br />
ones, and testing are continued that could improve them. One possibility is the process of slag<br />
granulation, which provides a number of directions for investigation the impacts on the process of<br />
fragmentation and concentration. For this purposes, a laboratory plant was designed to obtain<br />
larger quantities of granulate, needed for further investigations.<br />
Key words: smelter slag, granulation, laboratory plant<br />
1. INTRODUCTION<br />
Production of metals in the future<br />
could be significantly lower than the present,<br />
due to a fact that the reserves of metals<br />
in natural form in the run-of-mine ore<br />
are rapidly decreased from year to year.<br />
The other reason of limited metal production<br />
is more and stricter laws on environmental<br />
protection due to a waste waste<br />
generated in the mass processing of low<br />
grade ore. Large quantities of metal,<br />
trapped in the tailing and slag dumps, for<br />
the next period, may be the potential raw<br />
materials for new quantities of metal. Mineralogical<br />
composition of slag, obtained<br />
from metallurgical treatment, depends on<br />
many factors, and one of the important is a<br />
technology of metallurgical treatment. Depending<br />
on the above mentioned, the content<br />
of useful components varies within the<br />
limits that present higher content than their<br />
presence in their run-of-mine ore.<br />
* Mining and Metallurgy Institute Bo<br />
** This work has resulted from the TR Project: 33023, entitled "Technology Development of Flotation<br />
Processing of Copper Ore and Precious Metals in Order to Achieve Better Technological<br />
Results" for which funding, on this occasion, we would like to thank to the Ministry of Education<br />
and Science of the Republic of Serbia.<br />
No 4, 2011. 99<br />
MINING ENGINEERING