Analysis on the advantages of magnesium dolomite refractory material

Nowadays, low chromium or chrome-free refractory material are attracting more and more attention. Developed countries are developing chrome-free refractories to replace chromium-containing materials. Through research and production practice, magnesium dolomite refractory is AOD furnace, The ideal refractory material for large cement kiln firing zone.
Magnesium dolomite refractories silica ramming mass and Mg-Cr2O3 refractories compared to its advantages are:
1, the domestic magnesite, dolomite is rich in resources, widely distributed and inexpensive.
2, magnesium dolomite refractory CaO conducive to the purification of molten steel, smelting clean steel, magnesium dolomite refractory company also has a good dephosphorization desulfurization effect.
3, magnesium dolomite refractory castable contains a lot of free CaO, high temperature plasticity, can buffer the thermal stress caused by temperature fluctuations. Thermal shock resistance than magnesia-chrome brick.
4, in the cement kiln firing zone, magnesium dolomite materials in the f-CaO easily and clinker C2S combined into C3S, which is easy to hang kiln skin, and kiln skin and firebrick combination firm and easy to maintain.
5, the magnesium dolomite refractory ladle refractory in the use of the process or after the waste brick processing process, will not produce environmental pollution. Based on the above advantages, the development of magnesium dolomite refractories has been widespread concern. However, the CaO in magnesium dolomite refractory is easy to hydrate, which brings many inconveniences to the production, transportation and use of magnesium dolomite refractory, which limits the development of magnesium dolomite refractory.