T G Robson BSc CEng MIET MInstMC


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Control and Instrumentation of Rolling Mill Cooling Water System

Hoogovens Steelworks, Ijmuiden, The Netherlands


Hoogovens Rolling Mill WB2


Project:

Refubishment of cooling water system to handle 35 000 m3/hour, to support mill throughputs of up to 4 Mtonne/annum.

New major process items included a 12 000 m3/h sand filter battery, larger pumps, bypass valves valves and pipework up to 1400mm diameter.

New instrumentation was installed including electromagnetic flowmeters throughout. A new DCS allowed the system to be supervised from a control desk with 4 large monitors, using light pens and joysticks. The new scheme eliminated twelve 1m bays of hard-wired mimic panels.



Role:

  • Revision of McLellan's C&I standard for P&IDs in line with European practice.
  • Conceptual and basic design of C&I and LV electrical systems
  • Requirements specification for the control system
  • P&IDs and sequence diagrams
  • Supervision of commissioning as McLellan resident instrument engineer
  • Detail design of the instrumentation and control system
  • Planning
  • Temporary control schemes to maintain continuity of production
  • Before returning to the UK, planned an extension of the DCS to monitor all services for the plant - approx. 3000 I/O points. Handled the full detailed design with all cables and terminals scheduled.


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  TGR 23 Nov 2004