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  • Product Name: refractory castable for circul...
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Refractory castable for circulating fluidized bed boiler

Material: Powder

Working Temperature °C: > 1400

Application: Furnaces of metallurgy industry, heat treatment furnace ; Furnace of incineration of garbage, recirculating fluidized bed furnace ; Furnaces of chemical industry and construction industry ; Tundish lining

Description

High strength high alumina refractory castable is made of super high alumina clinker, composite binders and adhesives. The products are featured with high strength, good wear resistance, permeability resistance, erosion resistance, good mechanical properties, convenient construction, etc. It is commonly used in top of CFB boiler furnace, rear wall, etc.

This series of castable to refractory high alumina raw materials is mainly combined with the use of new powder technology and efficient compound chemical additives. load softening in high temperature, long service life, easy for construction and other characteristics, it has a has a significant effect on improving the insulation, reducing heat loss, reducing the environmental operating temperature.

Product Characteristics:

  1. High refractoriness, high refractoriness under load.
  2. High density, low porosity.
  3. Good slag resistance and corrosion resistance.
  4. High strength and wear resistance.
  5. Good resistance to flake performance.
  6. Good thermal shock stability.
  7. Scouring resistance
  8. Good hot strength.

Performance parameters:

Brand WRC-3 WRC-2 WRC-1
Al2O3%≥   75 85 95
SiO2%≥   20 10 2
CaO %≥   2.5 1.5 1.2
Bulk density g/cm3≤ 110 2.7 2.8 2.9
815 2.75 2.85 3
1100 2.8 2.9 3.1
Cold crushing strength /MPa 110 60 120 140
815 70 120 140
1100 80 120 140
Breaking strenght /MPa 110℃≥ 8 22 22
815℃≥ 9 21 18
1100℃≥ 12 20 18
Wear resistance value ≤   8 4.5 6
Thermal shock resistance 
900 water colding)≥
  20 20 30
Refractoriness/ °C   1770 1790 1800

Application Areas:

  1. Furnaces of metallurgy industry, heat treatment furnace.
  2. Furnace of incineration of garbage, recirculating fluidized bed furnace.
  3. Furnaces of chemical industry and construction industry.
  4. Tundish lining

high alumina castable

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