Zhengzhou Annec Industrial Co., Ltd.
Continuously Pushing Forward R& D of HBS for BF and Progress of Refractory Technology To Become Preferred Global Supplier in High Temperature Industry
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Shock Resistance Andalusite Alumina Silicate Refractory Brick
Good Thermal Shock Resistance High Alumina Brick
Data
| Item | Chemical Composition | |||
| Al2O3% ≥ | 58 | 57 | 56 | 55 |
| SiO2% ≤ | 38 | 40 | 40 | 41 |
| Fe2O3% ≤ | 0.8 | 0.8 | 1 | 1.2 |
| K2O % ≤ | 0.077 | 0.12 | 0.16 | 0.16 |
| NaO % ≤ | 0.44 | 0.52 | 0.56 | 0.56 |
| Reheating Linear Change% ≤ | 0.52 | 0.52 | 0.52 | 0.52 |
| refractoriness≥ ℃ | 1830 | 1790 | 1790 | 1790 |
Good Thermal Shock Resistance High Alumina Brick are produced with selected bauxite chamotte by advanced process and strict quality control. The main mineral components are corundum and mullite phases. Its features are excellent high temperature mechanics and chemical corrosion resistance.
Good Thermal Shock Resistance High Alumina Brick of over SK35 contain over 45% Alumina and are made from raw materials of unusually high degree of purity of Bauxite and refractory clay. For serve under severe conditions,JUCOS Alumina bricks have excellent mechanical strength, good resistance to thermal spalling, and are highly resistant to chemical attack by vilatile alkaies and some slag. We manufacture and design alumina bricks to meet the requirements of a great variety of service conditions thorough quality control.
The production process of Good Thermal Shock Resistance High Alumina Brick and multi-clinker clay bricks are similar.
The difference is that the proportion of clinker in the ingredients is higher, which can be as high as 90-95%.
The clinker needs to be sorted and sieved to remove iron before crushing, and the firing temperature Higher, such as Ⅰ, Ⅱ high alumina bricks are generally 1500～1600℃ when fired in tunnel kiln.
Production practice in China has proved that before crushing, high-aluminum clinker is strictly sorted and classified, and stored in tiers.
The use of bauxite clinker and combined clay fine grinding method can improve product quality.
Production process:
The production methods of Good Thermal Shock Resistance High Alumina Brick and clay bricks are basically the same.
Only some process parameters are different. There are also processes such as crushing → mixing → molding → drying → firing → inspection → packaging.
Feature
Applications:
Zhengzhou Annec CO., Ltd. was founded in 2003, and has been a NASDAQ listed corporation since 2011 with ticker identification ANNC. Annec had become the industrial leader within China in the areas of refractory production, Engineering for hot blast stove of blast furnace, and capability for EPC project. Annec has its own Provincial Enterprise Technology Center and Top Combustion Hot Blast Stove Research Centre, Annec (Beijing) Engineering & Technology Co., Ltd and four Manufacturers for Refractories. The annual output of different type of refractories can reach 150 thousand tons, and undertaken capability of more than 10 turnkey projects for hot blast stove.