BOF Slag Control Solutions

Slag Dart Refractories

MONOCON has more than 35 yrs experience in innovative BOF slag control technology and provide turnkey solutions including Slag Dart machines and Refractories.

Darts float at the metal-slag interface in the BOF and are designed to enter the taphole and restrict the amount of slag exiting the vessel.

Effective operation is reliant upon the design characteristics of the slag dart and the accurate calibration of the slag control dart machine.

Dart Design Features

Monocon’s innovative dart head and tail arrangement is designed to;
  • Withstand high tapping temperature.
  • Withstand erosion.
  • Withstand thermal shock.
  • Design to suit individual taphole diameter.
  • Dart density to suit the preferred runout time and furnace conditions.
  • Customized dart designs to suit individual taphole and bath depths.
  • Grip Type.
  • Tail diameter.
  • Tail Length.
  • Material type, density/mass variation.
  • Geometry changes.
Pre-Tap-Plug-PTP
pre-tap-plug2
PTP-Application

Pre Tap Plugs

Pre-Tap-Plug-PTP
pre-tap-plug2
PTP-Application

Pre tap plugs are used to stop the initial flush of slag at the onset of tapping from Basic Oxygen Furnace (BOF Converter). These plugs are inserted into the taphole from the outside of the vessel using an applicator pole after scrap has been charged and before molten iron is added into the BOF.
Monocon pre-tap plug solution prevent around 15% of slag carryover from BOF to Ladle.

More information please visit, www.monocon.info

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