Menetelmä ja laite sumutuksen estämiseksi paperikoneen viiraosalla

摘要

#CMT# #/CMT# The edge area of a covering wire (10) begins before the separation of the covering wire from the surface of the web (W) and ends at the turning roll (12). An effect of negative pressure is applied to the covering wire at specific point in the edge area. The effect of negative pressure is obtained by blowing air or vapor towards the wire so as to drain the mist to a collecting chamber (42) which is connected to a source of negative pressure. #CMT# : #/CMT# An independent claim is included for mist formation prevention apparatus. #CMT#USE : #/CMT# For paper machine wiring section. #CMT#ADVANTAGE : #/CMT# The formation of mist reduced by decreasing the water content in the wire before the wire approaches the turning load and by preventing the positive pressure formation in the closing nip between the wire and the turning roll. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The figure shows a side view of twin-wire former with mist prevention apparatus. 10 : Covering wire 12 : Turning roll 20 : Carrying wire 22 : Transfer suction roll 42 : Collecting chamber.