Comparison of open and closed circuit HPGR application on dry grinding circuit performance


ALTUN O. , BENZER H. , DÜNDAR H. , AYDOĞAN N. A.

MINERALS ENGINEERING, cilt.24, ss.267-275, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 24
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1016/j.mineng.2010.08.024
  • Dergi Adı: MINERALS ENGINEERING
  • Sayfa Sayıları: ss.267-275

Özet

A conventional cement grinding circuit is composed of a two compartment tube mill, a mill filter which collects the fine material inside the mill and a dynamic air separator where final product with required fineness is collected. In general the material fed to the circuit has a top size of 50 mm which is very coarse for the ball mill. For this purpose, later in 1980s. high pressure grinding rolls (HPGR) has found applications as a pregrinder which increased throughput of the grinding circuit at the same fineness.