SSAB Luleå Ceramic Burner Repair

SSAB Luleå has a one-furnace operation with 4 hot blast stoves. On one of their stoves they were experiencing performance problems for the last 4 years. After inspections it became clear that the burner crown was severley damaged and partially collapsed. This created problems with gas & air mixing during the heating phase thus affecting the whole heating cycle and stove efficiency. In order to maintain a continuous operation, there was a need to do a repair on the ceramic burner.

Facts and Figures

Project: Ceramic burner repair
Client:
SSAB Tunplatt, Luleå, Sweden
Design:
Siemens VAI
Duration:
60 days
Execution year:
2012
Partners: 
Luleå Industriemontagens AB, Luleå, Sweden / Lizmontagens SA, Lisbon, Portugal

 

Scope of work

 SSAB placed an order with the design company Siemens VAI for new ceramic burner refractories in 2009, in order to have the most critical lead item on site, in case a repair was required.

HeatTeQ received the order for the complete site work, including the following activities;

  • Site management and planning (included client activities);
  • Engineering and manufacturing of all auxiliary equipment, in order to have safe access in the stoves during the repairs;
  • Perform all mechanical works related to the disconnection of the stove from the life systems at the blast furnace;
  • Controlled cool down of the hot blast stove;
  • Installation of the safety deck;
  • Demolition and installation of new ceramic burner refractories;
  • Inspect and cleanout of the area under the grids;
  • Perform all mechanical works related to the disconnection of the stove from the life systems at the blast furnace;
  • Controlled heat-up of the hot blast stove;
  • Zero tolerance safety performance during the execution of the whole project.