Direct bonded magnesia chrome bricks for lime kiln use high purity sintered magnesia and chromium concentrate as main raw materials, manufactured by sintering at high temperature or ultra-high temperature.

　　In order to form direct bonded, the SiO₂ content in raw materials is best to low, and that the sintering temperature must be raised to about 1700℃.

　　Direct bonded magnesia chrome bricks for lime kiln have the advantages of less impurities, lower porosity, high strength, strong abrasion resistance, high corrosion resistance, high thermal shock-resistance and flake resistance.

　　Direct bonded magnesia chrome bricks as lime kiln refractories can be used for burning zone of rotary lime kiln and calcining zone of shaft lime kiln.