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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Yellow CCS 40Mpa 1650C Alumina Silicate Refractory Brick
Introduction:
Yellow Silica Dense Brick is fired in high temperature with quartzite as its raw material and adding a little mineralizer. Yellow Silica Dense Brick' mineral composition includes tridymite, ashlar and vitric formed in high temperature.
There are 50~80% quartzose content, 10~30% cristobalite and 5~15% quartz and glass phase content in the better sintering Yellow Silica Dense Brick. Fire brick and refractory brick.
Yellow Silica Dense Brick is mainly made of top class silica, via shaping and burning under the high temperature,
possesses high temperature resistant,high strength and low impurities,etc.
Yellow Silica Dense Brick is mainly used for blast furnaces and hot blast stove.
The most competitive price,good quality,safty packing,prompt delivery time,and excellent after-sales services.
Lighter weight,Low thermal conductivity,low impurities,high insulating properties,high CCS and exact tolerance.
Yellow Silica Dense Brick:
| Item | Silica Brick for Coke Oven | Silica Brick for hot-blast Stove |
| Brand | NCSB-94 | NCSB-95 |
| SiO2 % ≥ | 94.5 | 95.0 |
| Al2O3 % ≤ | 1.5 | 1.0 |
| Fe2O3 % ≤ | 1.5 | 1.3 |
| CaO % ≤ | 2.5 | -- |
| Na2O+K2O% ≤ | -- | -- |
| True Density≤ g/cm3 | 2.33 | 2.32 |
| Apparent.Porosity.% ≤ | 23 | 22 |
| Cold.Crushing.Strength(Mpa)≥ | 40 | 45 |
| Permanent Linear Change%≤ | 0~-0.2 | 0~-0.2 |
| Refractoriness Under Load 0.2Mpa | 1650 | 1650 |
| Thermal Expansion Rate | 1.28 | 1.25 |
Competitive Advantage:
Good performance in high temp refractoriness under load
Lower thermal line expansion in high temp
Lower impurity content
Good thermal shock resistance performance
Excellent resistance in slag abrasion
Good cold crush strength
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.
Annec has established a strong research and development team, represented by 11 wee known experts including prof. Zhou Gouzhi, an academician of Chinese academy of sciences, Mr. Wu Qichang, Chinese national design master of iron-making engineering. Prof. Zhang Bopeng, Inventor of the top combustion hot blast stove in Shougang Steel. The team possesses a multi-subject crossing and combination superiority in terms of metallurgy, materials science and engineering, thermal engineering, structure engineering, etc. And is beneficial to aim at the front of world steelmaking technology and continuously new technologies and new products to meet challenges of greenization, intelligence and collaboration in steelmaking industry and refractories industry.