Method for the operation of a medium-sized and corresponding medium-sized

摘要

Method for the operation of a medium-sized (100, 300, 400), wherein thethe from the cupola furnace (1) coming from the top gas by means of a cyclone (2) is roughly cleaned of dust from the cyclone (2) gas coming in a first burner (3) is burned,the cooled flue gas of the burner (3) in a heat exchanger (6) for heating up of fresh air for the purpose of use thereof as preheated in the cupola furnace (1) serves to be insufflated wind,from the heat exchanger (6) is coming before being injected into the cupola furnace (1) in a the heat exchanger (6) is connected downstream of the burner (9) in addition to a temperature of at least 750°C. is heated, characterized by the,that the in the burner (9) resulting flue gas in the first burner (3) is blown.