Low Thermal Conductivity Anti-Spalling Refractory Brick

• Customization: Available
• Feature: Low Thermal Conductivity, Long Time Materials
• Refractoriness (℃): 1770< Refractoriness< 2000
• Model NO.: DDR50
• Shape: Brick
• Type: Refractory Material
• Material: Flint Clay, Synthetic Material
• Transport Package: Export Wooden Pallet
• Trademark: Nie
• Origin: China

Product Description

Product Description
Low thermal conductivity of Anti-spalling Brick is one high quality refractory brick for Cement Rotary Kilns,made of Mullite, Synthetic material, Clay.

Characteristics:
1.Outstanding resistance to alkali attack
2.Excellent thermal-shock resistance
3.Outstanding abrasion resistance
4.Low thermal conductivity (230-280ºC)
5.Decreasing the kiln shell load, the mechanical stress on the lining
 
Application zone:
Calcining furnace, high temperature zone of kiln inlet, tertiary air duct, precalcining zone of cement rotary kiln.
 
Physical and chemical index

chemical composition		UNIT	SPEC	typical
Al2O3		%	≤55	51~55
SiO2		%		38~42
Fe2O3		%	≤1.5	1.5
physical properties		UNIT	SPEC	typical
Bulk Density	BD	g/cm3	≤2.4	2.25~2.35
Apparent Porosity	AP	%		17
Thermal Shock Resistance	TSR - in water at 1100 °C	cycle	≥10	10
Refractoriness Under Load	RUL (ta)	°C	≥1500	1500
Thermal Expansion	TE - at 1000 °C	%		0.7
Cold Crushing Strength	CCS	MPa	≥80	80
Thermal Conductivity	TC - at 700 °C	W/mK	≤1.8	1.8
Alkali Resistance	1100 °C*5h		First grade

Company Introduction
Luzhong Refractories
A comprehensive refractory service company integrating refractory research, raw material processing, thermotechnical kiln refractory designing, production, sales and service with an annual capacity of over 300,000 tons and currently having the following:

• National research institute: National and Local Joint Refractory Engineering Research Centre;
• Refractory base: Zibo Luzhong Refractories Co., Ltd., Xinjiang Tianshan Mountains Refractories Co., Ltd.;
• Special industrial ceramic base: Shandong Shengchuan Ceramics Co., Ltd., Ningxia Shengchuan New Material Co., Ltd.
• New materials base: Shandong Shengchuan New Material Science and Technology Inc.
• Raw material base: Yangquan Luzhong Refractories Co., Ltd., Zibo Langfeng High Temperature Material Co., Ltd.;