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Magnesia dolomite bricks for cement rotary kiln

MgO(%): 52.3～80.3; CaO(%): 13～80.3; Al₂O₃(%): 0.5; Fe₂O₃(%): 0.7; SiO₂(%): 1.2～1.3
Cold Crushing Strength (MPa): 55
Refractoriness under load (℃): 1700

Application:

Magnesia dolomite bricks for cement rotary kiln are recommended as burning zone linings especially with severe condition.

　　Magnesia dolomite bricks for cement rotary kiln is based on high quality Magnesia dolomite clinker, adding water-free binder, being mixed, high pressure pressed and sintered in high temperature.

Index	MG15	MG20	MG25	MG30	MG40
MgO (%)	76.3-80.3	72.3-76.3	66.3-70.3	62.3-66.3	52.3-56.3
CaO (%)	13-17	18-22	23-27	28-32	38-42
Al₂O₃ (%)	0.5	0.5	0.5	0.5	0.5
Fe₂O₃ (%)	0.7	0.7	0.7	0.7	0.7
SiO₂ (%)	1.3	1.3	1.3	1.3	1.2
Bulk density (g/cm³)	3.03	3.03	3.03	3.03	3.0
Apparent porosity (%)	8	8	8	8	8
Cold Crushing Strength (MPa)	55	55	55	55	55
Reheating linear change (%)		-0.35		-0.61
Refractoriness under load (℃)	1700	1700	1700	1700	1700
Thermal Expansion (%)
800℃	0.8~1.0	0.8~1.0	0.8~1.0	0.8~1.0	0.8~1.0
1200℃	1.35~1.6	1.35~1.6	1.35~1.6	1.35~1.6	1.35~1.6
1600℃	1.8~2.0	1.8~2.0	1.8~2.0	1.8~2.0	1.8~2.0