High-pressure grinding rolls reached great popularity for pressing iron ore concentrates
since its first application in the 1990s. For this particular application, mathematical models …

Particle breakage occurs in comminution machines and, inadvertently, in other process
equipment during handling as well as in geotechnical applications. For nearly a century …

In spite of the important developments in mathematical modeling of high-pressure grinding
rolls (HPGRs) in the last decade or so, predicting their performance for a wide range of …

High-pressure grinding rolls (HPGR) have increased their popularity in the minerals
industry, since their first application in the 1980s for raw material preparation in the cement …

Production of iron ore pellets typically requires regrinding of the iron ore concentrates.
Although these concentrates are produced following close control of chemical composition …

It has been known that the performance of high-pressure grinding rolls (HPGR) varies as a
function of the method used to laterally confine the rolls, their diameter/length (aspect) ratio …

The article focuses on the review of HPGR operation mainly from a technological point of
view. A critical review of recent achievements in HPGR technology was carried out, and …

The roller press, also called high-pressure grinding rolls (HPGRs), has been successfully
used for over 25 years in increasing the surface area of iron ore concentrates for pellet feed …

Increasing the efficiency of crushing circuits is associated with a decrease in the particle size
of finely crushed ore and the use of dry magnetic separation of crushed ore. Reducing …

High-pressure grinding rolls have an important role in several iron ore pellet feed
preparation circuits. Modeling and simulation are potentially useful tools to improve their …