To provide the subject system reduced in the number of accessory equipment and/or the dimension of a continuous digester while improving the uniformity of pulp treatment through avoiding 'hang-up' in producing chemical pulp such as kraft pulp.
This system for continuously pulping cellulose fibrous materials has such a scheme that, a liquid and finely chopped cellulose fibrous materials are not treated with a perpendicular countercurrent flow but with an orthogonal flow at the lower half portion of a digester system; that is, the liquid flow is substantially horizontal (for example, radial flow) and a chip stream moves perpendicularly; irrespective of the structure of a digester, a single or a smaller number of pump(s) 215 can be used in all of the circulating lines 125, 126, 127, 128.
STROEMBERG BERTIL C
GREENWOOD BRIAN F
