Understanding the causes of electrode paste overburning is crucial for maintaining the efficiency and safety of industrial processes. In this article, we will explore the various factors that contribute to this phenomenon, providing a comprehensive analysis to help you identify and prevent overburning incidents.
Analysis of Electrode Overburning Accidents:
- Non-compliant Electrode Paste, Low volatile matter can lead to premature sintering.
- High Moisture Content, This can cause material collapse, flame rise, and destruction of sealing and insulating materials, resulting in premature sintering and overburning of the electrode paste inside the shell. Overburning can deform the electrode shell, causing the deformed metal to accumulate at the bottom ring and form a conductive path, which can puncture the bottom ring and contact elements. Additionally, when sealing and insulation materials burn, high-temperature furnace gas can enter the shield, condense to tar, and cause short circuits and punctures in the contact elements and bottom ring.
- Damaged Feed Nozzle, Severe damage can raise the material surface and furnace temperature, leading to premature sintering and overburning of the electrode paste inside the shell.
- Short Working End, Deep embedding causes the electrode to be positioned too low, leading to premature sintering and overburning of the electrode paste inside the shell.
- Improper Wind Gate Adjustment, this can cause premature sintering of the electrode.
- Proximity to Flue, electrode 1# being near the flue can result in high heat exposure from escaping furnace gas, causing overburning.
- Long Periods Without Pressing the Electrode, This can lead to overburning.
- Damaged Seals at the Bottom Ring.
- Electrodes Too Short.
- High Operating Current and Low Secondary Voltage.
