Anti flaking high alumina brick is a kind of fired product which is made of super high alumina clinker and synthetic material containing ZrO2 by high pressure forming according to a certain proportion. The product has strong anti flaking ability, resistance to erosion of potassium, sodium, sulfur, chlorine and alkaline salt, and low thermal conductivity. It is an ideal material for the transition zone and decomposition zone of cement kiln. The remarkable feature of the product is good thermal shock resistance, Strong adaptability to the environment. Most of them are used in the preheat zone or decomposition furnace and grate cooler.
Anti flaking high alumina brick is a new type of high alumina material specially produced for cement kiln lining in China. It has excellent thermal shock stability, high load softening temperature, high temperature strength, alkali resistance and clinker erosion resistance, high temperature wear resistance, anti flaking, anti skinning, ring and low thermal conductivity. It has been widely used in new dry process kilns, LIBOR kilns and wet process kilns in China. The parts used include kiln door cover, ascending flue, cooling belt, safety belt, transition belt, rear wall and side wall of cooler, and bent top of crossbeam. It has been successfully applied in almost all parts of the kiln.
Anti flaking high alumina brick is a new type of refractory created by our country, which has reached the international advanced level. The brick has excellent physical and chemical indexes: thermal shock stability > 40 times at 1000 ℃, fire resistance of 1780 ℃, load softening temperature of 1470-1520 ℃, low thermal expansion rate and small thermal conductivity,
It is wear-resistant and corrosion-resistant, and can replace all parts of refractories except the firing zone of large new dry process kiln.
Application of anti stripping high alumina brick: it is widely used in new dry process kilns, LIBOR kilns and wet process kilns in China. The parts used include kiln door cover, ascending flue, cooling belt, safety belt, transition belt, rear wall and side wall of cooler, and bent top of crossbeam.

Index Item	Anti peeling high alumina brick	Spinel bricks
AL2O3, %	≥70	≥75
ZrO2 ,%	6～10	/
MgO , %	/	≥10
Fire resistance，℃	1790	/
bulk densityBD  ,g/cm3	≥2.5	≥2.85
Apparent porosityAP, ％	≤23	≤20
Normal temperature compressive strengthCCS，Mpa	≥60	≥48
0.2MPa load softening start temperature rul, ℃,	≥1470	≥1550
Thermal shock stability TSR, (900 ℃ water cooling), secondary cycle	≥30	≥10
purpose	Cooling zone, transition zone, door cover of cement rotary kiln and middle temperature zone of regenerator of glass kiln, etc