Twin wire former for a machine for producing a fibrous web and corresponding method

摘要

The machine for the production of a paper or cardboard web (2) has a twin-fourdrinier section (1) to take the pulp (3) from the stock inlet (7), with two continuous fourdriniers (4,5). Water is extracted from the pulp through the fourdriniers by a suction unit (10). At least one suction unit (20.1-20.5) is in the path of each fourdrinier to extract clouds (22) of steam and the like.