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

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

MINERALS ENGINEERING, vol.24, pp.267-275, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 24
  • Publication Date: 2011
  • Doi Number: 10.1016/j.mineng.2010.08.024
  • Journal Name: MINERALS ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.267-275
  • Keywords: Comminution, Modelling, Simulation, HPGR, CEMENT
  • Hacettepe University Affiliated: Yes

Abstract

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.