The cooling requirements of induction furnace body is analyzed,and presents a method based on PLC control is present.The design incorporates dual power supply design and power supply to PLC through UPS and battery,which realizes automation of waterway control with-out manual operation of waterway valves,and is suitable for unmanned operation of modern large-scale ferroalloy refining industry and casting industry.Siemens S7-1500 PLC system is a new generation of automation system of German Siemens enterprises,which can effectively control the furnace cooling system.The system has been applied to Baosteel and Ansteel 90T industrial electric furnace since 2021,and the system runs stably.This design not only uses double circuit power supply and double water supply,but also ensures the continuous operation of PLC and related valves after sudden power failure,so that the water circuit can continue to cool down and ensure the safe operation of the furnace body.At the same time,it can quickly and conveniently monitor and locate the fault points of hundreds of water circuits,which facilitates the maintenance of the system,and is the design direction of the cooling system of the large-capacity induction furnace body.
关键词
感应炉/西门子S7-1500PLC/炉体冷却/不间断电源/自动化控制
Key words
industrial furnace/SIEMENS S7-1500PLC/furnace cooling/uninterruptible power supply/automatic control
维普
万方数据