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Product Features: Magnesia-spinel Brick is a new generation of large-scale rotary kiln sintering belt chromium-free alkaline refractory, The use of iron oxide in the magnesium oxide solid melting characteristics of high-purity spinel as raw materials, high-temperature sintering of Non-chromium-free environmental protection Products. Magnesia-spinel Brick has the characteristics of high compressive strength, good thermal shock stability, good thermal creep resistance, anti-erosion and permeability, high load softening temperature, and it is more easy to stick the kiln skin than the direct combination of Magnesia chrome brick, It can effectively solve the problem of producing chromium six in the process of using magnesia-chromium brick in cement kiln and causing pollution to the Environment.
main uses: mainly used in cement rotary kiln firing zone.
理化指标Physical and chemical indicators：
Project |
Index |
|
MgO% |
≥86 |
|
Fe2O3% |
5～8 |
|
Al2O3% |
3～5 |
%
Apparent porosity |
≤16 |
g/cm3
Bulk density |
≥2.98 |
Mpa
Cold crushing strength |
≥65 |
0.2Mpa℃
Refractory under load |
≥1700 |
Thermal shock resistance （1100℃water cooled）times |
≥10 |
（1000℃）W/m.k
Thermal conductivity |
≤2.60 |
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Henan Guangda Refractories Co., Ltd is a high-tech enterprise which is dedicated to the refractory materials research and development, production, trade and engineering. Our company owns a professional technical research and development team that has been engaged in the refractory materials for decade years, owns advanced production equipments and testing equipment with the excellent marketing team. Our company has a sound management system for the market development and after-sale service. We will, as always, insist on the principle of quality first, customer first, putting quality and customers first, wholeheartedly provide the best quality......
