By use of the fuzzy control principle replaces in before system the modulator of PID method, improved the performance index of the system, and result of converter gas recovery, purified the atmosphere environment again at the same time.

• 运用模糊控制原理代替了以往系统中采用pid调节器的方法,改善了系统的性能指标,提高了转炉烟气回收的效果,同时又净化了大气环境。