A Guide to Preventing Electrode Paste Leakage in Ferroalloy Production

Leakage is referred as the outflow of molten liquid paste from where the electrode shell broke, usually including:

1. Above the contact shoein submerged arc furnace
2. Below the contact shoein submerged arc furnace 

Reasons

When the consumption rate of the electrode gets larger than its sinter rate, the soften section moves below the contact shoe in submerged arc furnace, meanwhile the current getting through the electrode exceeds safety threshold of the casing, leading to an outflow or soft breakage. There are three reasons as following,

• Poor quality of electrode paste
  High volatile matter content and soft point will result in an underbaked 3 phase electrode and leakage when down pressed. Also, high ash content will accelerate the consumption.
• Improper electrode paste charging
  electrode paste Charging without proper process requirement may cause:
  1. Over height and weight of the electrode cylinder
  2. Slow volatilization
  3. Insufficient baking
• Equipment
  The not-well-isolated holding system may connect other parts and the casing to power supply and thus the current breaking down the casing, leakage occurs. the electrode shell is not well welded when manufactured.

Measures

1. Select the right custom electrode paste according to furnace type and technical operations, alter slightly when necessary.
2. Strictly control the height of the electrode paste cylinder
3. Compliance with operating instruction
4. Regular maintenance

By implementing the preventive measures outlined in this guide, you can successfully prevent electrode paste leakage in your ferroalloy production. Remember, when it comes to electrode paste, one size and one specification doesn’t fit all furnaces! Consider partnering with a supplier that offers customizable solutions to meet your specific requirements. With tailored electrode paste, you can bid farewell to leaks and embrace a smoother and more efficient production process. Get in touch with our team today to explore how we can customize electrode paste to suit your needs and take your ferroalloy production to new heights!