To reach mill size up to Dia Cement raw meal Cements Portland and blended Blast furnace slag Twin FCB Horomill for high capacity grinding plant . Fives installs raw meal grinding plant at QNCC World Cement. An FCB B mill for raw meal grinding has been successfully installed at Qatar National Cement Co s new cement production line .A significant damage to the raw mill dynamic separator was prevented. By fixing a small problem ahead of time, a greater problem causing shutdown and lost production was eliminated. € 10,000-30,000 of damage prevented – 1 day production loss of this mill. Cement Plant Raw Mill Separator.