Process Flow Diagram Caustic Plant Power Plant Pulp Mill Black Liquor Green Liquor White Liquor. The Kraft Pulping and Recovery Basic Process Flow Pulp Mill Dale Proctor, 2003 White Liquor •NaOH •Na2S Pulp Mill •Cooking •Washing Black Liquor Turpentine pulp. Raw Material. Structure of Wood Fibers Lumen P S1 S2 S3 Middle Lamella. Chemical Structure of Fibers O O HO OH O O HO OH O .
· A ball mill also known as pebble mill or tumbling mill is a milling machine that consists of a hallow cylinder containing balls; mounted on a metallic frame such that it can be rotated along its longitudinal axis. The balls which could be of different diameter occupy 30 – 50 % of the mill volume and its size depends on the feed and mill size. The large balls tend to .