Low Thermal Conductivity Magnesia Spinel Brick

• Customization: Available
• Refractoriness (℃): 1770< Refractoriness< 2000
• Feature: Long Time Materials
• Model NO.: MLJ85FH
• Shape: Brick
• Material: Synthetic Light-Weighted Magnesia Spinel
• Transport Package: Export Wooden Pallet
• Trademark: NIE
• Origin: China
• HS Code: 6902900000
• Production Capacity: 30000t/a

Product Description

Description:
Luzhong Magnesia Alumina Spinel Compound Bricks are new developed chrome-free refractories for Cement Rotary Kilns, with excellent performance and energy-saving.
 
Characteristics:
  1.Excellent resistance to chemical attack
  2.Excellent thermal-shock resistance
  3.Excellent abrasion resistance
  4.Low thermal conductivity 
  5.Reducing the load and mechanical stress to the shell body

Application: Transition zone/ Sintering zone of cement rotary kiln.

Raw Material:
1.Synthetic Light-weighted magnesia spinel,
2. Alumina-magnesia spinel

Physical and chemical index

Chemical composition		Unit	Working layer	Insulating Layer
MgO		%	≥85	≥60
Al2O3		%	≥10
Physical properties			Working layer	Insulating Layer
Bulk Density	BD	g/cm3	2.90-3.05	2.6-2.7
Apparent Porosity	AP	%	17	24
Thermal Shock Resistance	TSR - in air at 950 °C	cycle	≥100	/
Refractoriness Under Load	RUL (ta)	°C	≥1700	≥1600
Thermal Expansion	TE -at 1000 °C	%	1.3	1.1
Cold Crushing Strength	CCS	MPa	≥40	≥35
Thermal Conductivity	TC - at 700 °C	W/mK	3.8	2.6