What castables are needed for masonry hot blast stoves
Release time:
2018-10-23
For the slurry of refractory bricks for hot blast stoves, refer to the slurry of refractory bricks for masonry stoves. In addition, a large number of silica bricks are used in the high temperature part of the hot blast stove.
The unshaped refractory materials for hot blast stove are mainly divided into the following types:
1 Refractory slurry
For the slurry of refractory bricks for hot blast stoves, refer to the slurry of refractory bricks for masonry stoves. In addition, a large number of silica bricks are used in the high temperature part of the hot blast stove, and silica refractory slurry is required for building silica bricks. Silica refractory slurry adopts silica powder or some silica powder as the main material, and the binder can be soft clay or chemical binder.
2 refractory castable
In the construction of hot blast stove lining, some castables will be used in some parts, such as clay castables at the bottom of the hot blast stove and andalusite castables between the outer wall of the ceramic burner and the combustion chamber wall.
3 Paint
Refractory spray coating is very common in the application of hot blast stove, hot blast furnace combustion chamber, regenerator, mixing chamber and all kinds of hot air pipe wall can be used in different varieties of refractory spray coating, its role is to heat insulation, improve the air tightness of the furnace body, protect the furnace shell steel plate.
4 Thermal insulation material
Thermal insulation refractory material refers to a refractory material with high porosity, low volume density and low thermal conductivity. In the hot blast stove in the application of more thermal insulation materials have heat insulation refractory brick, refractory ceramic fiber felt, polystyrene board, etc.
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