Research On The Automatic Control System For Submerged Arc Furnace Electrode Lifting

Ore furnace is the core equipment of ferroalloy production, it through the furnace can befree of the three roots and electrode produce arc, with carbon as reducing agent produceREDOX reaction energy into heat energy to melting ferroalloy, at present most smeltingenterprises-arc furnace electrode adjustment of by artificial control ore furnace operation of acurrent realization, but people can’t adjust and timely and accurate making furnace current inthe balance. In order to improve the efficiency and improve enterprise of smelting automationlevel, managing electric energy, research ore furnace of electrode up and down automaticallyhas certain practical value.firstly,it reviewed the electrode ore furnace and domestic and foreign situation and thedevelopment tendency of the research orec furnace production process, analysis of the currentproduction enterprise electrode lifting system problem, based on this and further explore theelectrode of the methods of control and control strategy, determined the best control strategyand electrode, constant impedance control, realize the balance of power in three-phase, ensurethe steady arc smelting purpose.Secondly, according to the actual operation of-arc furnace condition, puts forward the-arcfurnace automatic control system and electrode overall control scheme, adopt a programmablecontroller (PLC), intelligent power transmitter (PDM), interface circuit, hydraulic controlsystem and the PC, built ore furnace automatic control system hardware and electrodeexperimental platform to realize the electrodes of the control system of data acquisition,display, analysis, computation, storage and output, by using computer to send PLC controlinstruction, PLC control realization electromagnetic valve-arc furnace big and small cylinderand the cylinder action set to reach the control electrode lift purpose.Then, with Visual Basic6.0for software development platform, in the PC users log on,change of than setting, manual control, automatic control and historical data query softwaresuch as function module, realize the lifting system software design of electrode. Finally, the system test and performance testing, the system to reach the design goalrequest, reliable running of the hardware, software function is more perfect and convenientoperation, increasing the production enterprise of automation degree.