Arrangement in material drying systems

Abstract From the Canadian patent

The invention relates to an arrangement in drying sections of the kind intended for drying material (2) in the form, of a web, which is arranged for movement through the drying section while supported by a plurality of air streams which impinge on the undersurface of the web and which extend parallel with, or substantially parallel with a plane allotted to the web, each of these air streams being given an exiting velocity and direction via nozzle-, like exit apertures (11, 11a) formed in a blow box (7) such as to maintain the web (2) in a suspended state above the blow box (7). Arranged in that end-part (8) of a blow box through which a flow of supply air (7a) is introduced thereinto is a …