Glass furnace: how to improve the service life of glass electric melting furnace
Release time:
2025-03-21 00:00
Source:
With the development of industrial technical glass, the life of glass electric melting furnace has also been extended, and the quality of glass has been significantly improved, which is related to the emergence of refractory materials, new species of refractory materials. In particular, it is closely related to the development of fused refractories in the last century. Due to the high density, wear resistance, good high temperature mechanical properties and corrosion resistance of glass electric melting furnace electric refractory material.
For many years of development in China, the basic problem of controlling the ignition of large and small glass electric melting furnaces is that China follows the old tradition, that is, after the glass electric melting furnace is heated up for 10-13 days, the temperature change range of 800-850 °C inside the furnace is too large, and the overfire in our working temperature is mainly to consider the internal structure of siliceous refractories and clay refractories to analyze the crystal transformation, according to the study of the thermal expansion coefficient and temperature distribution range of these two refractories, including the development of the program heating curve, Overheating. During the heating and preheating activities, the domestic glass electric melting furnace can basically heat up according to the heating curve, and adjust the pull bar in time and effectively, so that the refractory materials of each part of the glass electric melting furnace continue to expand evenly.
The temperature fluctuation from the range of 850-1200 °C is large and difficult to control, sometimes fluctuating above 100 degrees in an hour, which will cause drastic changes in the refractory, especially at 950-1200 °C, the crystal transformation of the molten refractory material, accompanied by a volume shrinkage of 6.9%.
Therefore, in this temperature range, the heating operation should take into account the fused AZS material, which can lead to cracking of the fused brick if the temperature fluctuates greatly. Under the influence of high temperature and violent fluctuations, the corundum bricks in the glass electric melting furnace will form transverse and longitudinal cracks in a short time, especially in the flame space, such as the breast wall hook bricks, the entrance arch bricks, small chimneys, small furnace mouths, etc., generally have no obvious impact in the early stage of the new kiln operation, but in the middle of the kiln operation, the hook bricks will be turned over, exposing the supporting plate, causing the breast wall to tilt towards the kiln mouth. The above-mentioned serious chest wall tilting accidents have occurred many times in domestic glass enterprises, resulting in collapse, water plugs, and major economic losses caused by glass electric melting furnaces.
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Glass furnace: how to improve the service life of glass electric melting furnace
With the development of industrial technical glass, the life of glass electric melting furnace has also been extended, and the quality of glass has been significantly improved, which is related to the emergence of refractory materials, new species of refractory materials. In particular, it is closely related to the development of fused refractories in the last century. Due to the high density, wear resistance, good high temperature mechanical properties and corrosion resistance of glass electric melting furnace electric refractory material.
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Melting process of glass electric melting furnace
The best technology for melting glass is the glass electric melting furnace. With the prospect of government support for the accelerated development of the industry, the use of glass electric melting furnace is recognized by more and more people. But there are also many people who don't know much about it, but they lack professional knowledge, so they often lead to wrong views. Today we will tell you about this glass furnace related knowledge, I hope you can read carefully.
Glass melting furnaces: how to increase the service life of glass electric melting furnaces
With the development of industrial technology glass, the life of glass electric melting furnaces has also been extended, and the quality of glass has been significantly improved. This is related to the emergence of refractories and new species of refractories. In particular, it has a close relationship with the development of electrofused refractories in the last century. Due to its high density, wear resistance, good high-temperature mechanical properties and corrosion resistance of glass electric melting furnaces, electric melting refractories.