《Comprehensive Specifications for Electrode Protection and Maintenance During Calcium Carbide Furnace Shutdowns》

Proper electrode care during shutdowns prevents post-restart failures. Tailor your approach to shutdown duration:

Short Shutdowns (≤3 hours)
Lower electrodes to the minimum position, close furnace doors and chimney valves to retain heat and protect electrode integrity.

Extended Shutdowns (≥4 hours)

• Empty molten carbide, press electrodes 60–200mm, and lower them to bury tips in hot material to prevent oxidation.
• Stop cooling water for copper tiles and sleeves once temperatures stabilize to avoid thermal stress cracks during restart.
• Move electrodes up/down by 20mm every 2 hours to prevent sticking, which could cause breakage when restarting.

Long-Term Shutdowns (≥5 days)

• Shorten electrode working ends via controlled burning, remove all carbide, and lift electrodes out of the material bed for uniform air cooling.
• Stop circulating water only after complete cooling to protect system components.

By following these guidelines—from paste storage to shutdown protocols—you can minimize electrode failures, reduce downtime, and ensure consistent, safe calcium carbide production.编辑分享