How To Prolong The Service Life of Fused Cast AZS Sidewall BlockPosted by adela li on August 3rd, 2016 In the top parts of the sidewall where are not insulated. In horseshoe flame glass furnaces, as the flame is heating in the surface of glass melt, the temperature of the upper parts of the glass melt is higher than that of the lower parts. Silicate is formed and the refining of glass melt produces a lot of bubbles. Heat convection is very severe here. As a result, the corrosion rate of is bigger there. To alumina brick solve this problem, it is necessary to select and design the cooling fan reasonably. The cooling should be started slowly at first and then increases gradually to reduce or avoid the thermal stress caused by temperature gradient. The service life of fused cast AZS block lasts about 3-5 years. During the preheating of the glass furnaces, cracks may be formed. After 2-year operation, there will be holes in the firebrick refractory body of the brick. Glass melt may exude though the holes and cracks. To solve these problems, a single-point, focused and forced air cooling method can be adopted, which can crease the viscosity and reduce the temperature of the bricks. The fused cast AZS block is widely used in the sidewall in the glass furnaces. The service life of the fused cast AZS sidewall block determines the campaign life of the glass furnaces. So, it is important to prolong the service life of fused cast AZS sidewall block. Some special parts of the melting zone is corroded at the fastest rate and not easy to repair. Due to strong mechanical erosion, the glass furnace can just be used for 2.5 years before cold repair. Air and spray mixed cooling method can be adopted here. It is easy, stable and effective. It avoids the problems caused by the water cooling method. refractory company Henan Xinmi Changxing Refractory Material Co., Ltd. Located in Henan Province,China.ChangXing's product portfolio covers shaped products such as refractory materials,refractory brick, refractory castable,refractory nozzle, ceramic fiber, slide gate, etc; unshaped products including repair, construction and casting mixes and mortars.exported to more than 20 countries, such as Thailand, Indonesia, Pakistan, Saudi Arabia, South Africa, Turkey, Iran, Iraq and so on. Another article about refractory material: http://www.yilongrefractory.com/news/Some%20knowledge%20about%20Magnesia%20Carbon%20Brick.html Like it? Share it!More by this author |