Since the 1980s, roller presses have been in demand for their high levels of efficiency and energy conservation, and their development has reached an advanced level of maturity. With over 1400 units of its HFCG roller press series sold, Hefei Cement Research and Design Institute of China explains how the technology has evolved and can be best applied to the milling process. By Bao Wei, Gao Lin and Ding Hao, Hefei Cement Research and Design Institute, China.
The fast development of roller mills and roller presses in China since 2000 has grown in line with the implementation of large-scale dry-process kilns. In 2012, Chinese cement production reached 2.18bnt, accounting for 56 per cent of the world’s total output, of which over 60 per cent was produced by roller press grinding systems. Hefei Cement Research and Design Institute (HCRDI) has sold more than 1400 units of its HFCG roller press series which have widely been applied to various grinding systems for raw meal and finish cement milling, as well as for the grinding of steel slag, ferrous and non-ferrous ore slag, etc.