TH7071A - Process for controlled drying of strips - Google Patents

Abstract

Process disclosed for controlled drying of paper sheets during drying in a paper machine. This process combines the process of winding the paper over the cord. The conveyor belt during the passage of the paper, along with the belt, goes around the drying body of the drying phase and then rolls the paper around the part of the guiding device. It is positioned next to the drier, so the curling at the edge of the paper is minimal.

Claims (3)

1. A process used for controlled drying of long strips of continuous paper strips with the wet end and the dry end of the paper machine drying process. Slide the paper strip and the dryer conveyor to Aligned or parallel to each other In such a way that the paper strips and belts The conveyor covers the hot surface portion of the rotating dryer in such a way that the paper strips are positioned between the belts. Conveyor and hot surface, so the paper strip is controlled. Against contractions in a diagonal direction, the machine is then guided by the paper strips and the conveyor belt parallel to the Each other immediately They follow each other around the vacuum guide wheels positioned next to the drier by placing the device so that the strip of paper is held by the belt. Conveyed as it passes through a strip of paper along the conveyor Pulled between the drier and the guide wheels. In the manner that the belt The carrier is wrapped around a portion of the surface of the guide wheel - connecting the guide wheel with a vacuum source of at least 15.24 cm of the column of water in such a way that The vacuum is fed into the paper strip. Through the conveyor When the paper strip and the conveyor belt wrap around the guide wheel, the strip of paper is pulled closer to the conveyor belt. When the paper strip and the conveyor are wrapped around the guide wheel, the device is positioned so that the paper strip will It is controlled to resist contraction in the direction across the machine during the scrolling of the paper strip around the guide wheel, and the paper strip and the conveyor are parallel to each other around the next drying dryer at the next position. Descend from the spinning wheel, guided by the dryer and the next drier Will be part of the drying episode Single pull type for drying the strips during Slide the next piece of paper strip down from the wet end. Of the episode of the drier, so the shrinkage in the cross direction Strip paper machine Especially during Dry the strips The dry end of the dryer section does not have to occur, so the crumpled strip shrinkage is reduced. 2. The process described in claim 1 where controlled drying is achieved when the strip of paper is dry within the 40-60 percent range. 3. The process described in claim 1, where controlled drying of the strip of paper will proceed after the tab. The sheet is more than 60 percent drier (3 claims, 2 pages, 19 photos).