Heating device for a coarse and fine dust filter has several inlet profiles and removal profiles having hollow chambers for receiving a heating rod which lies flat on the whole inner surface of each section of the inlet profile

摘要

Heating device has several inlet profiles (3) and removal profiles (5, 5a) having hollow chambers (3a, 14) for receiving a heating rod (8, 9, 15). The heating rod lies flat on the whole inner surface of each section of the inlet profile through which air flows into the filter. Preferred Features: The inlet profiles extend against the gas flow direction (2). The heating rod (8) inserted into the inlet profile has a semicircular cross-section. The heating rod (9) has a double convex cross-section. The heating rod (8, 9, 15) is made of an electrically insulating support material, preferably silicone, with a heating element.