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 Project Details
 Domain  Steel & Metals
 Project Name  Ladle Furnace Control
 Client  GA Danieli, Kolkata
 Project Highlights First major order from Danielli
System Configuration
1 PLC/Drives : S7-400
2 HMI : PC based SCADA
3 Communication Protocol : Ethernet , Profibus
4 IO Count : 1328 + FM450 ( 2ch HSC)
5 Software : Simatic S7 , WinCC , EXCEL
Project Synopsis

The system consists of two PLC’s for two Laddle Furnaces (LF), two PLC’s for Electrode Regulation and a PLC for Utilities ( common section ).

The electrode regulation PLCs are supplied by Danielli.

The LF PLC handles the following–

  • Feeding ferro alloys & wire in the furnace at time of heat, which maintains the quality of steel.
  • Movement of laddle car.
  • Controlling hydraulics , compressor , water treatment & distribution.
  • Controlling HT circuit for Trafo.
  • Automatic tap changing for Trafo which is feeding electrode.
  • Inert Gas purging at Laddle, etc.

The Utility PLC (common section) handles –

  • Controlling Fume Extraction System (FES), which contains bag filter, RAL feeder and ID fans.
  • Controlling of Booster Pump. Etc

The scope of work included:

  1. Design and supply of control systems/ cabinets.
  2. Software development
  3. Commissioning and performance trials.