Machine for producing a material web

Details Machine for producing a material web Machine for producing a material web

1997-08-20

2000-09-12

Wilson, Pamela A.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34116, 34117, 34120, F26B 1102

Patent

active

061159387

ABSTRACT:
A machine for producing a material web, including a paper or cardboard web, having a plurality of cylinders around which the material web is guided in a meandering path together with a conveyor (transport) belt. The machine further includes at least one air conveying device disposed in the transfer region between two cylinders. The air conveying device associates with the free circumference region of a cylinder and aspirates the material web as the material web travels in a path free from contact with the cylinders as the material web travels between two succeeding cylinders. The material web and the conveyor belt are partially wound around the circumference region of the cylinders. According to the invention, the air conveying device only covers certain areas of the free circumference region of the cylinder on which the material web (paper web) winds.

REFERENCES:
patent: 4669198 (1987-06-01), Wedel
patent: 4821429 (1989-04-01), Sieberth
patent: 4893741 (1990-01-01), Heinzmann
patent: 5033207 (1991-07-01), Sturm et al.
patent: 5086571 (1992-02-01), Hietanen
patent: 5115581 (1992-05-01), Viitanen
patent: 5341579 (1994-08-01), Schiel et al.
patent: 5515619 (1996-05-01), Kahl et al.

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