A trailing element device

Details A trailing element device A trailing element device

D - Textiles, Paper

21

F

D21F 1/02 (2006.01)

Patent

CA 2325990

A trailing element device is disclosed for controlling the magnitude and scale of turbulence of stock flowing through a slice chamber (12) of a headbox of a papermaking machine. The device includes an upstream member (14), the upstream member including a locking portion (16) for locking the upstream member (14) relative to an upstream end (18) of the slice chamber. The upstream member (14) also includes a downstream portion (20) disposed within the slice chamber and downstream relative to the locking portion. An intermediate portion is disposed between the locking portion and the downstream portion (22) and a downstream member (24) is disposed downstream relative to the downstream portion. The downstream member (24) is fusion welded to the downstream portion (22).

L'invention porte sur un dispositif traînant destiné à réguler l'intensité et l'échelle de turbulence de la pâte traversant le logement (12) de la règle de la caisse de tête d'une machine à papier. Le dispositif comporte un élément amont (14) muni d'un système de verrouillage (16) bloquant l'élément amont (14) par rapport à l'extrémité amont (18) du logement de la règle. L'élément amont (14) comporte également une partie aval (20) placée dans le logement de la règle et en aval du système de verrouillage. Une partie intermédiaire est placée entre le système de verrouillage et la partie aval (22), et un élément aval (24) est placé en aval de la partie aval. L'élément aval (24) est soudé par fusion à la partie aval (22).

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