铸铁熔炼过程中批料之间的续接时间不均及延长会造成铁液的温度、质量的不稳定甚至导致铁液的过氧化。在实际生产过程中,冲天炉加料机的电路出现临时故障的情况时有发生,其中以交流接触器打火粘结的故障为主。 Cast iron smelting process between the continuation of the non-continuous batch of materials and extend the temperature will cause the molten iron, the quality of instability and even lead to excessive oxidation of molten iron. In the actual production process, the cupola feeder circuit appears temporary failures have occurred, of which the AC contactor ignition stick fault-based.