2014-Sustainable Industrial Processing Summit
SIPS 2014 Volume 1: Mining
| Editors: | Kongoli F |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2014 |
| Pages: | 424 pages |
| ISBN: | 978-1-987820-03-4 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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EFFICIENT USE OF FLY ASH IN UNDERGROUND MINES
Bajram Mustafa1; Shyqri Kelmendi2; Halil Qela1;1TREPCA MIN.& METALL. COMPANY;UNIVERSITY OF PRISHTINA, Mitrovica, Kosovo; 2FACULTY OF GEO-SCIENCES AND TECHNOLOGY, PRISTINE UNIVERSITY, Mitrovica, Kosovo;
Type of Paper: Regular
Id Paper: 183
Topic: 1
Abstract:
Kosovo is well known in the Balkans region as a big producer of energy from the power plants from lignite open pit mines. As a result of lignite burning, a large amount of fly ash is discharged, which causes a great impact in the environment. In the same time, the considerable amount of fly ash is available for recycle use, mainly by adding fly ash to cement. However, the use of fly ash in cement industry is limited because the production rate of cement and the concentration of fly ash in cement are limited. Using fly ash in the underground base metals mines, like hydraulic filling is a potential area which can provide scope for environmentally safe and large volume utilization of fly ash. On the other hand, the use of fly ash in the form of hydraulic filling increases the safety of mining facilities and setting, affecting the work efficiency of the mining method. In the TREPCA mine (Kosovo), we started using fly ash as a hydraulic filling material within the underground mining method "Cut and fill". Prior to the use of fly ash in mine, there were series of laboratory examinations and reviews on physical model. The water used in the formation of pulp for hydraulic transport is fully connected with fly ash particles in ore-pas, which means that there is no need to pump out additional amount of water. In this paper, the results of these examinations in the laboratory, as well as the effects of using fly ash in underground lead and zinc mines in Kosovo are presented.