PULPER FOR A FIBER STOCK PREPARATION SYSTEM

摘要

A pulper for pulping a fiber source includes a tank and a rotor. The tank has a plurality of annular-shaped inner walls defining a chamber. The plurality of walls include a first wall, second wall, third wall and forth wall which are sequentially vertically adjoining relative to each other. Each of the walls are disposed at an angle relative to a vertical reference. The first wall is disposed at an angle of between 45 and 70° relative to the vertical reference. The second wall is disposed at an angle of between 20 and 45° relative to the vertical reference. The third wall is disposed generally parallel to the vertical reference. The forth wall is disposed at an angle of between 10 and 30° relative to the vertical reference. The tank further includes two baffles within the chamber which inhibit rotational movement of the fiber source within the chamber.