Patent ID: 8438754

Claim:
Apparatus for improving the detachment of paper ( 1 ) from the cylinder of a paper machine in a drying section implemented with a single wire transfer, which drying section comprises means for heating the paper on the drying cylinder ( 3 ) and for transporting it onwards on the wire ( 2 ) via a hitch roll ( 8 ) to the next drying cylinder such that the paper together with the wire in the section between the cylinders is sucked against the wire by means of low pressure and in that the apparatus comprises means for forming low pressure such that an enhanced low- pressure area ( 12 ) is formed at the detachment point ( 7 ) of the paper ( 1 ) and after it with respect to the direction of travel ( 15 ) of the drying wire a second weak low-pressure area ( 13 ) to keep the paper ( 1 ) attached to the drying wire ( 2 ), characterized in that to improve the detachment of the paper ( 1 ) an apparatus is installed on the opposite side of the drying wire ( 2 ) at the detachment point ( 7 ), which apparatus comprises a nozzle ( 14 ), with which an air jet ( 11 ) is blown, and a guide surface ( 16 ) by means of which the air jet ( 11 ) is directed against the direction of travel ( 15 ) of the drying wire such that the air jet ( 11 ) ejects secondary air ( 17 ) along with it causing an air flow ( 18 ) between the planar carrying surface ( 9 ) and the drying wire ( 2 ).