Predicting the grinding energy of vrm depending on material characterization

ALTUN D., Benzer H., Gerold C., Schmitz C.

Minerals Engineering, vol.171, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 171
  • Publication Date: 2021
  • Doi Number: 10.1016/j.mineng.2021.107095
  • Journal Name: Minerals Engineering
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, CAB Abstracts, Chemical Abstracts Core, Communication Abstracts, INSPEC, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Keywords: Vertical roller mill, Piston-die test, Energy, Modelling, Dry grinding, POPULATION BALANCE MODEL, PARTICLE, COMMINUTION
  • Hacettepe University Affiliated: Yes

Abstract

© 2021 Elsevier LtdThis paper presents the studies carried out to estimate the grinding energy of vertical roller mills via breakage test. An extensive laboratory and pilot scale test work was performed. In the first step, breakage characteristics of eight samples having different competence were determined by piston-die tests. Then, the samples were subjected to a size reduction process using a pilot scale vertical roller mill. Feed size, product size and energy data from pilot scale grinding tests were evaluated with material characterization tests. Based on energy-size reduction models proposed in the literature, equations were derived to estimate the grinding energy of the vertical roller mill by using the size and piston-die test data.