The paper introduces the application of Siemens S7-200 plc & kingview 6. 52 in sintering flue gas destfurization system. It is based on the application of the system control and production process, gives the fuzzy control strategy, designs the relevant program modules. According to the concentration of desulfurizer is difficult to control, it adopts cascade control methods and use kingview to monitor system, so interface is simple and easy to use. The actual production results show that the proposed scheme can satisfy the requirements of various indexes, can reliably realizes flue gas desulfurization, can reduce SO2concentration at the smoke mouse, can protect ecological environment.%介绍了西门子S7 - 200PLC和组态王6.52软件在烧结烟气脱硫系统中的应用,基于脱硫系统的生产工艺和控制要求,给出了模糊控制策略,设计了相关的程序模块.针对脱硫剂浓度难以控制的特点,采用串级控制方法,利用组态王对系统进行监控,操作界面简单明了,方便易用.实际生产结果证明,方案可以满足厂方要求的各项指标,能够可靠地实现烟气脱硫,降低了出烟口SO2浓度,保护了生态环境.
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