Patent · US Active

Enhanced ore communication process and apparatus

US7578459B2 · kind B2 · utility

2Cited by

8References

2Claims

0Family size

Assignees

LOESCHE GMBH · DE
Anglo American Research Laboratories (PTY) Ltd · ZA

Inventors

Richard Michael Viljoen · Midrand, ZA
Jan Tjeerd Smit · Edmonton, CA
Udo Meyer · Herrenberg, DE
Carlos Felipe Lozano-Vallejos · Schreiber, CA

Key dates

Filing date	Jan 11, 2008
Grant date	Aug 25, 2009
Priority date	—
Expiry date	Jan 11, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB02C2015/002
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A method and apparatus for comminuting particulate material by interparticle comminution in a bed of particles are disclosed. The apparatus includes a vertical roller mill with a horizontal grinding table rotating about a vertical mill axis. At least one grinding roller presses resiliently against a bed of particulate material on the grinding track and applies a compressive force. The geometry of the mill is such that the roller engages the bed of particulate material with a substantially pure rolling action. This minimizes shear forces applied to the particle bed and minimizes the reduction of fines.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.