Apparatus for controlling mist and dust in the manufacture and finishing of paper and board
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 6, 2003
Grant Date -
Jun 13, 2002
app pub date -
Feb 11, 2002
filing date -
Sep 24, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention relates to an apparatus for controlling the behavior of particulate matter such as mist and dust occurring in the manufacture of paper and board. A web (1) is passed to web treatment equipment (22, 23) wherein at least one treatment step is applied to the web (1) causing the emission of said particulate matter (24). In the vicinity of the emission point (21) of said particulate matter are placed at least two electrodes (25, 26) and at least one electrode, called a counter-electrode (26), is at a low potential. Further, at least one electrode (25) is at a potential higher than that of said counter-electrode (26), and the potential difference between said electrodes (25, 26) is made so high as to generate a corona discharge between said electrodes that causes an ion-blast wind toward the electrode (26) of the lower potential, said ion-blast wind being capable of transferring particular matter, which enters the gap between said electrodes, toward said electrode of lower potential.
First Claim
Other Claims data not available
