Method and apparatus for continuous drying of bulk material, in particular of wood fibres and/or wood chippings

摘要

The method involves flowing a vapor-gas mixture through a drum dryer (1) in a dryer circuit, where the vapor-gas mixture is indirectly heated by a heat exchanger (4) by a burner waste gas. The burner waste gas is heated in a burner. The drying vapors are supplied to the heat exchanger. The partial flow of drying vapors to the burner is driven by a regulable partial vapor fan (10). The partial vapor fan is controlled by toxic substance values of the burner waste gas, particularly by nitrogen oxides or carbon monoxides. Independent claims are included for the following: (1) a method for manufacturing wood-based panels; (2) a device for drying bulk goods, particularly wood fibers or wood chips; and (3) a system for manufacturing wood-based panels with a milling unit.