Dealing with soft breaks in electrodes within submerged arc furnaces is critical to maintaining operational efficiency and safety. Understanding the correct procedures can prevent further damage and ensure the smooth continuation of the production process.
How Can You Effectively Handle Soft Breaks in Submerged Arc Furnace Electrodes?
Immediate Action: Upon detecting a soft break, immediately cut power to the furnace. Only the main operator should handle the situation to avoid overcrowding. Quickly lower the electrode into the furnace, ensuring the electrode paste doesn’t leak out. Disconnect the electrode from the break point, clear away the surrounding electrode paste, and then restore power. Begin low-load baking, gradually increasing the load based on the electrode’s baking progress. Typically, the baking process takes 6-8 hours. During this time, the affected electrode should not be lifted.
When the Break Can’t Be Reconnected: If the broken electrode cannot be reconnected and the electrode paste has hardened, preventing it from flowing, lower the electrode slightly according to its size. Then, proceed with low-load baking as described above.
If the Paste is Too Fluid: If the electrode paste is still too fluid or has nearly flowed out entirely, weld an additional section with a bottom plate to the electrode, similar to the method used when starting a new furnace. Add new electrode paste and continue with the baking process. Pay special attention to the airflow to the electrode and the cooling water flow to the conducting clamps.
