Continuous dryer for flat workpieces

US6108931A · kind A · utility

Assignee

• Babcock-BSH GmbH · DE

Inventors

• Manfred Schmidt · Krefeld, DE
• Karl Paul Maurer · North Branch, US
• Gerhard Lehn · Bad Hersfeld, DE
• Friedrich Bahner · Lengede, DE
• Klaus Hentschel · Rodenbach, DE
• Karl Lang · Berlin, DE

Key dates

• Filing date: Jan 30, 1998
• Grant date: Aug 29, 2000
• Expiry date: Jan 30, 2018

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F26B15/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A drying apparatus has a housing, a conveyor for displacing a flat workpiece horizontally in a travel direction through the housing on a level, and a horizontal array of horizontally elongated upper nozzle boxes lying generally in a plane above the level. Each box is formed with a plurality of downwardly directed nozzle holes and heated air is fed to the boxes so it is projected from the holes against the workpiece for drying same. Respective upper shield plates each formed with a plurality of apertures are slidable on the respective boxes between a position with the apertures aligned with at least some of the respective holes and a position with the apertures out of line with the respective holes. At least one pivotal rod extending along a rod axis in the direction has radially projecting arms each engaged with a respective one of the respective shield plates. The rod can be pivoted about the rod axis to shift all the shield plates between their positions.