Abstract : The main aim of this project is to design a system for oxygen enrichment in the cold blast airlines of a Blast Furnace at Visakhapatnam steel plant using a Programmable Logical Controller (PLC).



  • The rate of oxygen injection is controlled from the PLC based on the set oxygen percentage at the blast furnace control room, through the Flow Control Valve.
  • Percentage of oxygen shall be set manually; rate of oxygen flow to the flow of cold blast will get adjusted automatically.
  • This enrichment system is provided to increase the rate of production. The maximum injection capacity is 1.9%.

Please find the following attachments"Oxygen enrichment using plc seminar report/pdf/ppt download" here.............