| 摘要 |
PROBLEM TO BE SOLVED: To provide a paper dissolution processing unit with a simple structure capable of efficiently dissolving paper stock.SOLUTION: A tank part (5) of a paper dissolution processing unit has a plate part (13) with many discharging holes (13a) and a stirring rotary vane (12). A wing piece of the rotary vane comprises a body part (12a) made of a vertical thin plate extending from a rotation axis in a radial direction, a tip made by bending an edge part of the body part in a rotation direction, and a spatula part (12c) integral with the body part that is retained at a position separated from the plate part. The spatula part comprises a flat plate part (12c-1) in parallel with the plate part and a swash plate part (12c-2), which is located between the flat plate part and the body part and is tilted to the plate part, and rotates the rotary vane part in a direction in which the rotary vane passes over the discharging holes in the order of the flat plate part and the swash plate part. |
