1. Advantages of all-electric melting glass furnace
① There is no exhaust gas to prevent air pollution. Since there is no combustion gas from the flame kiln, there is no problem of harmful smoke and dust dispersion outside the plant. Various volatiles are covered by batch materials.
② Reduce the volatilization of volatile batch components.
③ The furnace is overhauled quickly. The overhaul of an electric melting furnace can be successfully completed within 10 days.
④ During the whole kiln period, the discharge capacity of full load can be maintained at all times. In a fuel-heated furnace, the ability to maintain heat input and the output of glass is often limited due to the deterioration of the combustion system. In the electric melting furnace, the method of increasing the electric power input by increasing the voltage can quickly and easily compensate for the extra heat loss caused by the side wall.
⑤ Small footprint. The electric melting furnace only includes the melting pool, the liquid hole and the ascent.
⑥ The heat loss is reduced, and the energy consumption is greatly reduced. The all-electric melting furnace relies on the conduction of molten glass itself to achieve its melting, which is internally heated.
⑦ Good glass quality. Since the melting is carried out inside the molten glass, the temperature difference along the depth of the melting pool is very small; the volatilization is less and the glass composition is stable; the vertical melting reduces the delamination of the high-lead glass. All these ensure that the glass liquid has good uniformity and stability.
⑧ Low construction investment and simple auxiliary equipment.
⑨ The all-electric furnace is easy to adjust and control, has a wide operating range, and the thermal system is more stable than flame tank kilns.
① In many areas, electricity costs are still relatively expensive.
② The life of refractory materials is not long, and the life of refractory materials used in electric melting kilns is not as long as that used in flame kilns.
In summary, an all-electric melting furnace can be considered when the environmental protection requirements are strict, the electricity price is low, the glass is difficult to melt, the glass quality is high, and the production scale is small.
