At present, the commonly used furnace wall refractories and insulation materials for boilers are clay refractory bricks (use temperature 1350℃~1400℃); light clay refractory bricks (use temperature 1150℃~1400℃); red bricks (use temperature 700℃) ; Clay-based refractory mud (refractory degree of 1750℃); refractory concrete (refractory degree of 900℃~1350℃). Thermal insulation materials include diatom pattern bricks, asbestos powder, vermiculite products, cement perlite, slag wool and so on. Various mortars used for bricklaying are generally prepared by refractory factories themselves as ready-made materials, but they can also be prepared by themselves at the construction site.
The materials used in the furnace wall are mainly refractory and heat insulating materials, followed by metal materials. The structure of the furnace wall is different, and the materials used are also different. The materials used for heavy furnace walls are mainly standard refractory bricks, diatomaceous earth bricks and popular red bricks, followed by mortar for bricklaying. Only a few particularly important or structurally special parts of this furnace wall use metal parts for support and reinforcement.
In addition, because the temperature of the boiler body is relatively high, in order to achieve the function of heat preservation and heat insulation, a layer of insulation cotton is often added to the periphery of the furnace body to reduce the temperature of the periphery of the furnace body, so that the workers will not feel too sultry during operation. At the same time, the furnace body can be insulated.
Rongsheng Refractory supply Refractory materials for boiler and other high temperature furnaces, if you have any question about , please do not hesitate to contact us!
