DETERMINATION OF BREAKAGE PARAMETERS FOR SEVERAL SIZE CLASSES OF COPPER ORE BY SINGLE IMPACT BREAKAGE TEST BAKIR CEVHERİ İÇİN FARKLI PARÇACIK BOYUTU GRUPLARINA AİT KIRILMA PARAMETRELERİNİN TEK DARBELİ KIRILMA İLE BELİRLENMESİ


Duman I., Ozlu B., İTİK M.

27th International Mining Congress and Exhibition of Turkey, IMCET 2022, Antalya, Türkiye, 22 - 25 Mart 2022, ss.1036-1043, (Tam Metin Bildiri) identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: Antalya
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.1036-1043
  • Anahtar Kelimeler: Breakage, copper ore, drop weight test, single impact breakage
  • Dokuz Eylül Üniversitesi Adresli: Hayır

Özet

In mining industry, particles are exposed to breakage in the interaction with mining equipments throughtout the whole process. Equipments like transfer chutes, crushers, mills etc. suffer remarkable deformations due to the particle breakage which varies in a wide range of particle sizes. The impact effect which arises at the contact areas of mills and crushers is particularly enormous. Therefore, it is important to understand the effect of breakage above facility equipments for their design, to predict equipments life spans and moreover the cost enhancements about the facility. In this study, copper ores in various size classes have been broken based on the single impact breakage event via using drop weight test set up. For every particle, specific crumbling energy value which is related to the height of the drop weight is determined. Then, this height has been increased with repeated experiments and the ores which are divided into various fragments have been sieved by the screen of the 1/10th of the initial particle size. At last, as using the formula which is related to the impact energy and the proportion of under screen weight of broken particle to the initial weight, breakage parameters have been determined.