Author 1:
Name & Surname: Burchardt E.
Company: ThyssenKrupp Resource Technology (Beckum, Germany)
Work Position: Chief Technologist
Contacts: e-mail: roman.karl@thyssenkrupp.com

Author 2:
Name & Surname: Kössler M.
Company: ThyssenKrupp Resource Technology (Beckum, Germany)
Work Position: Project Manager

The article gives a review of the experience gained in the use of high pressure grinding rolls (HPGR). Grinding efficiency has been acquiring more importance in the world’s mining and processing industry in recent years, mainly, because of growing energy costs and global water deficiency. This trend is going to intensify from now on. The time and energy consumed for ore disintegration will grow in proportion to the depletion of ore reserves. Energy-efficient grinding, such as HPRG, is the technology- and energy-healthy solution to the problems that mining and processing industry is and will be facing. Experience practice shows that HPRG raise competitive capacity of mining and processing industry, which is exceptionally important in the days of unstable or loosing market of raw materials. Since its introduction to cement production in the 1980s, HPGR have become the commonly accepted and proved technology of hard and abrasive ore processing. Currently, HPGR enjoy wide application in various raw material treatment technologies. HPGR are included in fine crushing installations to prepare a feedstock for ball mills, or to re-crush ore for the enhancement of output. Furthermore, HPGR are used to produce pebble, which is a semi-autogenous milling product, iron ore, etc.