China 2021 Good Quality Silica Refractory Brick - Chemical Resistant Brick High Alumina Acid Resistant Bricks – Rongsheng factory and manufacturers | Rongsheng Detail:
Alkali resistant block is a kind of low alumina brick, the Al2O3 content is 30-25%, the main material of alkali resistant blocks is low alumina refractory clay, alkali resistant fire block is a kind of silicaalumina series refractory products with good alkali erosion resistance performance in cement kiln system. alkali resistant refractory block has high strength, good volume stability, alkali erosion ability, etc. alkali resistant refractory block is applicable to the cement kiln preheater and decomposing furnace.
Properties of Alkali Resistant Bricks
- Long service time,
- High purity fire clay,
- penetration resistance,
- Good alkali resistance,
- Outstanding alkali resistance
- good thermal shock stability,
- Good chemical attack assistance.
Manufacturing Process of Alkali Resistant Bricks
Alkali resistant brick is at high temperatures could react with alkali metal oxide generated high viscosity of the liquid phase, forming a layer of glaze is changed shape layer, covering the surface of the brick block surface pores, to prevent the infiltration and erosion of the alkali metal molten material, have the purpose of the alkali erosion. alkali resistant block refers to low alkali resistant brick refractory clay as the main raw material, which is made of aluminum in cement kiln system and has good alkali corrosion resistance and low thermal conductivity.
Classification of Alkali Resistant Bricks
Alkali resistant brick can be divided into four types: common alkali resistant brick, high strength alkali resistant firebrick, vault type alkali resistant block and thermal insulation type alkali resistant block.
Common alkali resistant brick is mainly used in cement kiln preheater and decomposing furnace three times.
High strength alkali resistant firebrick is mainly used in cement kiln preheater, decomposed furnace, three air ducts, vertical rising flue, cyclone cylinder.
Vault type alkali resistant block is mainly used in cement kiln preheater and decomposing furnace three times.
Thermal insulation type alkali resistant block has good alkali corrosion resistance and low thermal conductivity, have heat insulation performance of silica alumina refractory products.
Rongsheng Refractory Alkali Resistant Bricks Specifications
| Items | Special acid-proof brick | Lightweight acid-proof brick |
| SiO2(%) ≥ | 65 | 65 |
| Bulk Density(g/m³) | 1.6-1.8 | 1.0-1.3 |
| Cold Crushing Strength(MPa) ≥ | 15 | 10 |
| Thermal Conductivity W/( m·K) ≤ | 0.65 | 0.45 |
| Water Absorption(%) ≤ | 15 | working face 5 |
| Acid-proof rate(%) ≤ | 98 | 97 |
| Service Temperature( ℃) ≤ | 1000 | 1000 |
Application of Alkali Resistant Bricks
Alkali resistant refractory brick has high strength, good volume stability, alkali erosion ability. alkali resistant brick is applicable to the cement kiln preheater and decomposing furnace, air duct, etc. alkali resistant fire brick also used in the Kiln preheating system, decomposition furnace, tertiary air duct .
Alkali Resistant Bricks Manufacturer from RS Refractory Factory
RS refractory factory as a professional alkali resistant refractory block manufacturer in china, have many competitive advantages in the market. if you have demand of alkali resistant block, or have some questions on alkali resistant firebrick about physical and chemical indicators , please contact us for free, we will provide you with high quality alkali resistant refractory bricks.
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