METHOD AND APPARATUS FOR CONTROLLING A DRYER

摘要

A method and apparatus for operating a dryer used to reduce the moisture content of sheet material such as a jet veneer dryer. A drying chamber includes a plurality of individual, juxtaposed drying section s (16). A single point exhaust system (34) extracts the exhaust from a first drying section. A wet seal section (40) located at an input end of the dryer includes an exhaust passage through which a gas sample is drawn by a sampling fan (100). A controller monitors the temperatu re of the sampled gases (at 110) and ambient air (at 112) and adjusts the rate of exhaust flow from the single point exhaust system (34) a s a function of the temperature differential.