Patent ID: 6131308
Filing Date: 2000-10-17
Classification: F26B

Abstract:
An apparatus comprising at least one jetting section for levitational guidance and stabilization of a continuous web of material for the purpose of its heat-treatment comprising:a) levitation nozzles for jetting the web at least on one side with a treatment gas, andb) a radial fan arranged on the jetting side of the web and including a 360.degree. spiral housing for feeding the levitation nozzles, whereinc) said radial fan with an internal intake opening is disposed at each jetting side in the transport direction of said web respectively at one longitudinal end of each jetting section,d) said radial fan is arranged so that it delivers in a direction located substantially parallel to said transport direction of said web, and whereine) the flow from said radial fan is returned at the respective other longitudinal end of each jetting section in the shape of a U to said web so that in the region of said levitation nozzles the flow again runs substantially parallel to said transport direction of said web as a counter current to said flow from said radial fan.