Position

Working conditions

Required physical properties of refractory material

Selected refractory material

Boiler ignition zone material bed surroundings, separator boiler upper wall, lower side wall, rear wall

   1.Working temperature800-1300℃
   2.Erosion and abrasion by waste
   3.Corrosive gas erosion
   4.thermal shock from temperature changes

1.       Wear resistance

2.       Thermal shock resistance

3.       Corrosion resistance

4.       High temperature resistant

Working layer: high-alumina Refractory Castable(XDNJ-S-1) or homogeneous plastic refractory
Second layer: insulating castable

Boiler furnace positions, around economizers, wall panels, air preheater anti-corrosion casing

   1.Working temperature500-1300℃
   2.High-temperature flue gas erosion
   3.Corrosive gas erosion
   4.thermal shock from temperature changes

1.       Corrosion resistance

2.       Thermal shock resistance

3.       Corrosion resistance

Working layer: high wear-resistant Refractory Castable(XGAJ-1)
Second layer: insulating castable or thermal-insulating castable

Walls around the furnace combustion chamber, inside of separator

1.       Working temperature500-1200℃

2.       High-temperature flue gas erosion

3.       Corrosive gas erosion

4.       Thermal shock from solid-material variation

1.       Corrosion resistance

2.       Thermal shock resistance

3.       Corrosion resistance

Working layer: high-alumina high wear-resistant Refractory Castable(XNG-1)

furnace plate walls,Water Coolingmembrane wall

1.       Working temperature500-700℃

2.       hot steam

   1.Low heat storage, high heat emission, makingBoilerHeat loss reduced to a minimum
   2.Lightweight
   3.High strength, not prone to powdering or peeling, safe④long service life

Working layer: lightweight Castable(XJQ-1200),Insulating castable (XJQ-500) etc.