METHOD FOR DRYING A CELLULOSE PULP WEB AND A CELLULOSE PULP DRYER COMPRISING AN INSPECTION DEVICE FOR INSPECTING THE POSITION OF THE WEB OR THE OCCURRENCE OF WEB RESIDUE

摘要

A gas blowing cellulose pulp dryer is operative for drying a web of cellulose pulp using gas supplied from gas outlets of blow boxes of a first drying section. The cellulose pulp dryer has an inspection device with at least a first radiation sensor arranged to detect reflected radiation at the first drying section to detect at least one of a position of the web during operation of the dryer, and the occurrence of any residue of the web.