October 2022 the Pirson Group performed the repair of Arcelor Mittal Dunkerque blast furnace 3; a salamander tap was performed, the shell was opened at taphole 31 and the taphole refractories were removed to create access to the furnace. The remaining burden was removed by group partner TPCO and, after assesment of the hearth, taphole 32 was partially demolished from the inside. After installation of the safey deck by Pirson Monage we continued with the installation of the taphole refractories. The design consisted of large carbon blocks connected to the existing lining by smaller bricks which were cut on site. Both tapholes were repaired within the set time frame.
Pirson Refractories is the leading company for taphole repairs in Europa with over 25 performed over the last 25 years. Varying in size and from approach, taphle repairs can be performed both from the in- and outside. Pirson refractories has over 120 Tons of hot pressed NMA and MND bricks on stock in the Netherlands and is able to provide a repair assessment, draiwings and planning swiftly.
For any more information regarding this repair or taphole repairs in general please contact us.