Indirect heating system for a hardening stove, comprises a temperature controlled pipe system connected to individual temperature controlled zones and connected to an indirect air heater

摘要

An indirect heating system for a hardening stove for products which require phenol resins to be hardened, especially mineral wool insulation material, comprises a temperature controlled pipe system. The pipe system (2) is connected to the individual temperature controlled zones (1), and is connected to an indirect air heater (3). The latter consists of a heat exchanger (3a) and a separate burner system (3b). The heat exchanger is connected to exhaust air from a plant, via a filter (5).