About refractory bricks for power generation waste incinerators

When selecting refractory bricks for incinerators, attention should also be paid to the temperature and corrosion of different parts of the furnace, and different grades of materials can be selected.

The temperature of the combustion chamber, namely zone I, is 1400~1600℃, and the corundum bricks with 90% aluminum content can be used; the working temperature of the upper part of the furnace, namely zone II, is 900~1000℃, the cone is equipped with waste liquid nozzles, and the aluminum content is more than 75. % Of high-alumina bricks, the working temperature in the middle of the furnace, namely zone III, is 900℃, and molten salt and alkali flow down the furnace lining, causing serious corrosion. A high-alumina brick (LZ-65) can be used; Same as the middle of the furnace, when there are a lot of molten salt in the combustion products, it is easy to focus on the slope, stay for a long time, and it is easy to infiltrate into the refractory. If there is Na2CO3, the corrosion is more serious, so it is worse than the middle of the furnace. Dense materials with lower porosity, such as fused refractory products.