Research And Application Of Shougang Jingtang AV100-17 Blast Furnace Blower Control System

The Shougang Jingtang AV100-17 blast furnace blower unit control system and motor variable frequency control system of the research and application of this topic is introduced in detail.The control system of the unit adopts the PSC7 control system of SIEMENS company,and realizes the automatic control of the important equipment.Blast furnace blower is an important equipment for smelting blast furnace,which is one of the important reasons for the control of blast furnace production.In order to meet the needs of blast furnace smelting,in blast furnace smelting process often used constant pressure,constant air volume,manual adjustment of the three ways,in order to improve the stability and reliability of the operation of blast furnace blowers and control to take anti surge protection and current protection,anti blocking control,dial wind control etc..The Shougang Jingtang AV100-17 blower to the 5500m3 blast furnace for wind as the background,combined with 3#blast furnace blower reconstruction project,to blast furnace blower antisurge control improvement needs as the starting point,in the process of in-depth analysis and research of blast furnace blower control,control of variable frequency soft start,a fan fixed air flow/pressure control system,surge and dial wind control were studied.Combined with the specific requirements of the Shougang Jingtang 3#of blast furnace blower control system the need for improvement,gives the control scheme,flow chart and related control algorithm,optimum temperature compensation current protection "three two" transformation,and combined with the blower 1#years Hugh of anti surge check,blocking line add.In addition,this paper discusses the fuzzy adaptive PID control strategy of the blast furnace blower.The variable frequency soft start control,stator fixed air flow,constant pressure PID adaptive fuzzy control technology,anti surge control,reverse current protection three judge,blocking line control,manual/automatic shifting wind technology research,and other advanced control theory obtained great application.Research and improve the control system of the blower,to improve the performance of the unit and the protection unit of the safe and reliable operation of a far-reaching significance.Blast furnace blower is an important equipment in the blast furnace smelting process,the running state of the blower is related to the output of the blast furnace and the efficiency of the whole enterprise.We not only need to tap the potential of the blower unit,but also make the protection function and automatic control is very good to the blower service,to meet the demandof blast furnace smelting of wind,wind pressure.