COMMON MISTAKES WHEN CONDITIONING YOUR PRESS FABRICS

摘要

The press section is the most demanding section in terms of fabric performance on your machine. This is because it is not only the paper web that is squeezed in the press section, but also the fabric. To survive and succeed in the press section, the fabric must be able to withstand tremendous crushing forces and still take large amounts of water away from the paper sheet. Good press fabric cleaning and conditioning systems use hydraulic forces from high-pressure (HP) and low-pressure (LP) showers to loosen and flush contaminants from the press fabric through a Uhle box. A typical system (Figure 1) consists of an HP needle shower, a lubricating shower, and a Uhle box and vacuum system. Chemical showers are sometimes used to facilitate the cleaning process.