Method and arrangement in tail threading in a paper machine

Details Method and arrangement in tail threading in a paper machine Method and arrangement in tail threading in a paper machine

D - Textiles, Paper

21

F

D21F 7/00 (2006.01) D21F 5/00 (2006.01) D21F 7/04 (2006.01) D21F 9/00 (2006.01) D21G 9/00 (2006.01)

Patent

CA 2361942

The invention relates to a method and an arrangement in tail threading in a paper machine, in which the paper web is dried in production by means of a plurality of dryer groups (12n) consisting of a dryer section (12), and in which tail threading the threading tail is cut, taken as wetted to the finishing device (13), and spread to its full width for production, and in which method, before the threading tail is take to the finishing device (13) , the dryer section (12) is kept in the settings of production operation or is set to otherwise correspond to production, except that a wetting process is started, in which the web is wetted at the full width for the duration of the tail threading, essentially before its cutting (14), to achieve an even moisturizing effect, and the wetting process is stopped after web is being spread.

Cette invention a trait à une méthode et à un montage d'engagement de la pointe dans une machine à papier. La feuille de papier continue est séchée et en série au moyen de groupes de cylindres sécheurs multiples(12n) consistant en une section sécherie (12). Dans cette section, l'engagement de la pointe est coupé, pris mouillé jusqu'au dispositif de finition (13) et étalé à sa pleine largeur pour la production. Dans cette méthode, avant que l'engagement de la pointe soit pris jusqu'au dispositif de finition (13), la section sécherie (12) est maintenue dans les mises en place de l'opération de production où cette section est réglée pour correspondre à la production. Cependant, lorsque le processus de mouille a démarré, dans lequel la feuille en continu est mouillée à pleine largeur pour la durée de l'engagement de la pointe, essentiellement avant sa coupe (14), pour obtenir un effet d'humidification uniforme. Pour finir, le processus de mouille est arrêté après l'étalement de la feuille continue.

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