Alkali Resistance Brick

1.Non reactive with acids, 2.Light in weight, 3.Crack free finishing, 4.Smooth texture, 5.Available in beautiful patterns, 6.Offered in varying dimensions, 7.Strength and stability.

     

Brief Introduction

Alkali-resistance brick is a kind of low alumina brick, the Al2O3 content is 30-25%, the main material is low alumina refractory clay, it is a kind of silica-alumina series refractory products with good alkali erosion resistance performance in cement kiln system.
  

Technical Datas

Items Ordinary Type High-strength type Insulation type Vault type
Al2O3  % 25-30 25-30 25-30 30-35
Fe2O3  % 2 2 2 2
SiO2  % 65-70 65-70 60-70 60-65
Refractoriness  (°C) 1650 1650 1650 1710
Bulk Density g/cm3  ≥ 2.15 2.25 1.65 2.2
Apparent Porosity  %  ≤ 21 20 35 21
Cold Crushing Strength MPa≥ 35 60 15 35
Refractoriness Under Load °C ≥ 1350 1300 1250 1400
thermal conductivity  W/m.  (350°C±10°C)TC 1.28 1.28 0.7 1.28
Application Large and medium dry-process kiln,decomposing furnace, etc.

Application

1. Preheater equipment
2. Metallurgy furnace
3. Transfer zone of cement rotary kiln
4. Burning zone of cement rotary kiln
5. Other thermal equipment

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