Composition:MgO + Al2O3/Fe2O3/ZrO2 Application:Cement and lime Kiln, or other industrial kilns. Color:Brown Raw Material:DBM & Spinel Refractoriness:≥1790℃ Capacity:500 tons per month Package:Export wooden pallets

Product Introduction

Magnesia spinel bricks are refractory products made of periclase and magnesia alumina spinel ,which can improve the heat stability of common magnesia brick.

Features

1.Excellent Heat Stability. 2.Better Anti-stripping performance than direct bonded magnesia chrome brick. 3.Abrasion Resistant. 4.High Refractoriness Under Load.

Application

It’s mainly used for burning zone and transition zone of cement kiln, also some other industrial furnaces.

Product		Magnesia Alumina Spinel Bricks						Magnesia AluminaSpinel Zirconium Bricks		Magnesia Spinel Bricks		Magnesia Alumina Zirconium Bricks
Model		MLJ-85A	MLJ-93A	MLJ-95A	MLJ-85B	MLJ-93B	MLJ-95B	MLJZ-93A	MLJZ-93B	MLJZ-R63A	MLJZ-R63B	MZ-96A	MZ-94B
MgO% >=		85	88	93	82	85	90	92	88	85	80	92	88
Al2O3 >=		9	5	3	9	5	3	5	5	3	3	5	5
Fe2O3<=		0.7	0.7	0.7	0.8	0.8	0.8	0.7	0.8	7.5	7.5	0.8	0.9
SiO2 <=		0.6	0.8	0.7	2.5	2	2.5	1	2.5	0.9	2.0	1	2.5
ZiO2>=								1-3	1-3			1-3	1-3
Apparent Porosity<=		16-18	16-18	16-18	17-18	17-18	17-18	17-18	17-18	16-17	16-17	17-19	17-19
Bulk Density>=		2.85	2.85-3.0	2.85	2.8	2.85	2.82	2.85	2.8	30.	2.9	2.9	2.8
Cold Crushing Strength>=		45	45	45	40	40	40	50	50	50	45	50	45
0.2.Mpa Refractoriness Under Load（℃)>=		1700	1700	1700	1700	1700	1700	1700	1660	1660	1630	1700	1650
Thermal Expansion1400℃												1.6	1.6
Thermal Shock Resistance	1100℃ water cooling, times	12	12	12	10	10	10	12	10	10	8	8	6
	950℃water cooling, times	100	100	100	80	80	80	100	80	100	80	30	25
Heat Conductivity		2.8	2.9	3.0	2.8	2.9	3.0	3.0	2.9	2.5	2.5	4.5	4.4