Chemical reaction in a glass electric melting furnace
Release time:
2024-11-15 00:00
Source:
As our main machine products for glass processing, the glass electric melting furnace has a pivotal position, so we want to tell you about the relevant knowledge of this glass electric melting furnace today, I hope you can read it carefully.
Several issues that should be paid attention to when using SnO2 electrodes:
Because the SnO2 electrode is sensitive to reducing gas, it will be reduced to Sn when it encounters CO, so the furnace of the oven must be an oxidizing atmosphere, and when the electrode is installed, in order to be safer, the surface of the electrode is covered with broken glass to protect it, or the broken glass is added to the electrode.
In order to ensure the service life of the electrode, the current density on the surface of the electrode should be controlled below the allowable maximum value (0.7A/cm2).
When installing, the inner surface of the electrode is required to be flush with the refractory material that contacts the liquid glass surface, and attention should be paid to the influence of erosion on the effective surface change, if the current interruption time is > 30 minutes in production, when the electrode is re-energized, the current must be increased slowly, on the contrary, if the current needs to be greatly reduced in production, it must also be carried out slowly, during the operation of the furnace body, it is not allowed to interrupt the cooling air of the electrode, and the cooling air volume should be adjusted according to the redness of the electrode.
The top brick to prevent the electrode from moving outward must be installed in place, otherwise the electrode displacement may occur, and the connecting cable of the electrode must not be connected wrong, especially for the furnace body controlled by two independent thyristors for the upper and lower electrodes, otherwise serious consequences will occur.
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Chemical reaction in a glass electric melting furnace
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