Electric arc furnace electrode installation

By:Yvonne Aug 07, 2020
Electric arc furnace electrode installation
Electric arc furnace electrode installation
When joining graphite electrodes
1. Firstly, blow the socket, end surfaces and nipples with compressed air. There must be no dust and the joints should be kept clean.
2. When the two electrodes are screwed in to a certain extent (about 10mm gap), blow it again with compressed air.
3. Then, tighten the electrode with a torque clamp and apply the torque when tightening. The gap between the both connection ends is not more than 0.05 mm;
4. If there is a gap at the joint after tightening, you must exit and re-join until there is no gap.
3. Eaf electrode connections
• Lift the new arc furnace electrodes over the old column, and slowly drop it vertically to avoid any thread damage occurring from shocks.
• Turn the new arc furnace electrodes with a torque ring. At this time, the lift plug and the electrode rotate down together until the end faces of the two electrodes contact.
• Tighten the electrode with appropriate torque to lock the electrode.
Graphite Electrodes Uses
Preparation of Jointing
• When raising the electrode from horizontal to vertical position, leave the pin protection in place or alternatively place a cushioning material underneath the pin to prevent damage to the threads.
•  Clean the socket and end faces of the old column as well as of the new electrode with compressed air.
• In the case where some dirt should be removed manually, use a soft brush against the threads. Use of a metallic brush should be avoided.