Device for heat recovery

摘要

The invention relates to a device for heat recovery from exhaust air laden with dust and having a high content of steam, especially vapours from wood chip dryers during production of particle boards, which exhaust air is conducted over a tube bundle carrying the fresh air, characterised in that a continuously rotatable tube bundle (5) is mounted in a drum (2) which exhibits a radial intake (20) and discharge (22) for the exhaust air. <IMAGE>