| 摘要 |
<p>In a method for drying moist webs of paper or cardboard, the moisture profile is optimally equalized by first drying the paper web to a moisture content of 10 to 20% with conventional cylinder drying machines. Subsequently, capacitive high-frequency drying is performed to a moisture content of about 6 to 10%. Drying to the desired final moisture content of, for example, 4% is carried out with a cylinder dryer. The limits of use of the high-frequency dryer are given, among other things, by the cost of high-frequency energy and by the danger of breakdowns.</p> |
