| 摘要 |
In the process disclosed, pulp mixed in a dosing device is introduced into the pre-shaping device (1) on an endless shaping web (3), for example a papermaking machine wire web, which serves successively for support and drainage of the pulp during pressing and pre-shaping and as a means for handling the pre-shaped board to remove it from the pre-shaping device (1). The pre-shaped board is then introduced into a tunnel furnace (5) with double-sided percussion in which the hot air at a temperature of 185 to 200 DEG C is blown forcibly and very uniformly onto the two faces of the board to be dried. |
