Selection and construction requirements of refractory bricks for small furnace parts of glass melting furnace

The selection and construction of refractory linings in each part of the glass melting furnace are different. Each part is interlocked, and its construction quality is the key to affecting the age of the entire furnace. 

Therefore, analyzing the working environment of each part, formulating the correct refractory material configuration, and strictly following the construction requirements of refractory materials are the focus of each part. 

The following are the selection and construction requirements for refractory bricks in the small furnace part of the glass melting furnace.

Working environment of small furnace

The small furnace is a device that preheats and mixes fuel and air and organizes combustion. The structure of the small furnace should ensure that the flame has a certain length, has a large enough cover area close to the glass liquid level, does not float, and does not layer. It must also meet the requirements for the temperature and atmosphere in the kiln. The structure of the small furnace depends on the type of fuel. Different and slightly different.

Refractory material selection for small furnaces

This part includes the flat area of the small furnace burner, the small furnace stack, the nozzle bricks, the nozzle brick stack, the small furnace slope, the straight, the small furnace side walls, the small furnace bottom, and the small furnace entrance stack, wall, and bottom connected to the regenerator. , except for the nozzle brick and the small furnace bottom, which use 33# oxidation method to cast fused zirconium corundum bricks without shrinkage holes, other places can use 33# oxidation method to ordinary cast fused zirconium corundum bricks. The insulation of the straight ballast and inclined ballast of the small furnace can use zirconium sealing material, high-aluminum insulation bricks and high-aluminum plastic insulation materials. The insulation of the side walls of the small furnace can use zirconium sealing material, high-aluminum insulation bricks or none. Asbestos calcium silicate board. Zircon bricks, clay insulation bricks, and ceramic fiber boards can be used for insulation under the small furnace bottom bricks. Alumina bricks can also be used for small furnace mouth structures and their accessory breast walls.