High Grade Magnesia Spinel Refractory Brick

Type:MLJ, MLJZ, MLTJ,MZ
Supply Ability:150T/D
Delivery:15-30days
Application:Applying to the transitional zone of rotary kiln.

 


CFC launch 2 kinds of bricks upon quality to meet different needs as below:

a.Standard Grade Magnesia Spinel Brick

b.High Grade Magnesia Spinel Brick

Application

1.Cement burning zone & Transition zones with increased thermal load

2.LTZ/CBZ/UTZ

3.Rotary Kiln with alternative fuel fired

Physical properties

a.Low thermal conductivity

b.High flexibility

c.Coating friendly

d.High chemical attack resistance

e.Low porosity

Raw materials

1.High grade sintered magnesia

2.Spinel

Parameters

Ltems & index MgO
%
Al2O3
%
Fe2O3
%
SiO2
%
ZrO2
%
Apparent
Porosity
(%)
Volume density(Kg/m3)  Cold compressive strength(MPa) 0.2Mpa Load softening temperature 1400℃ Thermal
Expansion
(linear)
Thermal shock stability 1000℃ Thermal
conductivity (W/mk)
1100℃ water cooling
(times)
950℃ Air cooling
(times)
Magnesia-alumina Spinel Bricks
MLJ-85A ≥85 ≥9 ≤0.7 ≤0.6 1 16-18 ≥2.85 ≥45 ≥1700 011 12 100 2.8
MLJ-93A ≥88 ≥5 ≤0.7 ≤0.8 1 16-18 2.85-3.0 ≥45 ≥1700 0 12 100 2.9
MLJ-95A ≥93 ≥3 ≤0.7 ≤0.7 1 16-18 ≥2.85 ≥45 ≥1700 0 12 100 3.0
MLJ-85B ≥82 ≥9 ≤0.8 ≤2.5 1 17-18 ≥2.8 ≥40 ≥1700 0 10 80 2.8
MLJ-93B ≥85 ≥5 ≤0.8 ≤2 1 17-18 ≥2.85 ≥40 ≥1700 0 10 80 2.9
MLJ-95B ≥90 ≥3 ≤0.8 ≤2.5 1 17-18 ≥2.82 ≥40 ≥1700 0 10 80 3.0
Magnesia-alumina Spinel Zirconium Bricks
MLJZ-93A ≥92 ≥5 ≤0.7 ≤1 1-3 17-18 ≥2.85 ≥50 ≥1700 0 12 100 3.0
MLJZ-93B ≥88 ≥5 ≤0.8 ≤2.5 1-3 17-18 ≥2.8 ≥50 ≥1660 0 10 80 2.9
Magnesia-alumina Zirconium Bricks
MZ-96A ≥92 ≥5 ≤0.8 ≤1 1-3 17-19 ≥2.9 ≥50 ≥1700 1.6 8 30 4.4
MZ-94B ≥88 ≥5 ≤0.9 ≤2.5 1-3 17-19 ≥2.8 ≥45 ≥1650 1.6 6 25 4.4

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