Six key points affect the service life of glass kiln electric furnace

January 30, 2024

[Zhongbo.com] The service life of glass electric furnace is generally called kiln age. It also refers to the overhaul period of furnace furnace shutdown, which is an important design parameter of electric furnace. The glass electric furnace mainly includes refractory materials and electrodes, transformers, control cabinets and the like. The main reasons affecting its service life are as follows:

First, it is related to the structure of the kiln. Different formulas are applicable to different furnace types, mainly considering the forced convection of glass in the electric furnace to refract the refractory material. By designing a suitable structure, it is an important factor to ensure the life of the electric furnace by ensuring the refractory materials of various parts, especially the corrosion resistance of the inner lining brick.

Second, related to the material of the refractory material, from the kiln life, depending on the location, choose different materials of refractory materials, such as the general furnace bottom casting electrofusion 33#AZS, but the fluid hole and electrode brick are used without Shrinkage hole melting 41#AZS and so on.

Third, the arrangement of the electrodes is also one of the reasons that affect the furnace. Firstly, the insertion method of the electrode has great influence. For example, the top electrode can improve the life of the kiln because there is no electrode brick, but it is relatively easy to form a hot top or the shape of the material surface is high, and the electrode is easy to break: The relative erosion of the electrode is small, but the design and equipment requirements are relatively high, and the erosion of the flat-inserted electrode brick is large. If there is no special means, the erosion of the kiln is large, so there is a high requirement for operation and use.

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Fourth, the material side is also one of the factors affecting the life of the kiln. Different materials have different impact on the electric melting brick and the electrode. For example, the ordinary soda-lime glass electric melting furnace has a high service life, and the formula furnace containing titanium, antimony and fluoride has a short service life.

5. There are also great factors in the reasonable and normal maintenance of the manufacturer. In particular, the manufacturer's timely treatment of the redness of the furnace body and the condition of the brick joints is one of the ways to extend the life of the furnace. Generally, the service life of the kiln refers to the overhaul period of the cold furnace, and during this period, a small range of heat repair may be performed, such as common brick repair, tiling, forced cooling and the like.

6. Use the electrode water jacket correctly. Due to the difficulty in replacing some of the electrode water jackets, especially the bottom electrode, if the water jacket is seriously leaked, it will cause the furnace to be shut down. The water jacket and softened water should be inspected and maintained regularly. It is strictly forbidden to stop the water. After using for a period of time, the water jacket and the electrode are displaced and changed, which is also one of the means to extend the furnace and equipment. To improve the life of the kiln, it is necessary to strictly follow the process of the electric furnace and the thermal system to prevent the production from fluctuating greatly, avoid frequent refueling, avoid multiple power outages, avoid water, avoid production, and avoid large production. The amplitude fluctuates, avoids frequent refueling, avoids multiple power outages and stops water, and avoids improper management.

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