System and method for threading a moist web in a pulp dryer...

D - Textiles – Paper – 21 – F

Patent

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D21F 7/00 (2006.01) D21G 9/00 (2006.01)

Patent

CA 2318777

A system and method effectively threading the moist tail of a web through a pulp dryer. A tail threading belt in a closed loop passes the tail of the web through the dryer, and the most tail of the web is transferred from a support wire in the press section of a pulp machine to the tail threading belt. Transfer may be effected using a suction roll with a suction sector and a blower sector, or by using a suction chamber having a perforated escort belt which cooperates with it to engage the tail section on the wire and fully support it during transfer to the threading belt. The threading belt may be folded over to contain the tail web inside it while it passes through the dryer.

L'invention concerne un système et un procédé permettant de faire passer la pointe humide (18) d'une bande continue, par exemple, dans un presse-pâte sécheur. Ce système comporte une courroie (12) d'engagement de la pointe formant une boucle fermée et conçue de façon à faire passer la pointe de la bande continue dans le presse-pâte sécheur, et des moyens (20, 50) permettant de transférer la pointe humide de la bande continue, par la pointe. Lesdits moyens comportent un moyen de transfert proprement dit ou analogue pourvu d'une partie aspirante (20, 54, 56), ledit moyen de transfert étant conçu pour détacher, en coopération avec ladite toile de support, la pointe humide de la bande continue de la toile de support.

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