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Low Thermal Conductivity Anti-Spalling Refractory Brick DDR50

$Low Thermal Conductivity Anti-Spalling Refractory Brick DDR50$

Price:	Negotiable/Ton
Min Order:	20/Ton
Pay Type:	L/C,T/T

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Showroom Product Company Profile

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

Production Control

Application

Package

Prod Model:	DDR50
Refractoriness (',℃):	1770< Refractoriness< 2000
Feature:	Long Time Materials
Type:	Refractory Material
Shape:	Brick

Luzhong Refractories Group

A comprehensive refractory group integrating refractory materials research, thermotechnical kiln refractory designing, production, sales and provide turn-key service. We has an annual capacity of over 200, 000 tons and currently having the following:

1. National research institute: National and Local Joint Refractory Engineering Research Centre;

2. Refractory base: Zibo Luzhong Refractories Co., Ltd., Xinjiang Tianshan Mountains Refractories Co., Ltd.;

3. Special industrial ceramic base: Shandong Shengchuan Ceramics Co., Ltd., Ningxia Shengchuan New Material Co., Ltd.

4. New materials base: Shandong Shengchuan New Material Science and Technology Inc.

5. Raw material base: Yangquan Luzhong Refractories Co., Ltd., Zibo Langfeng High Temperature Material Co., Ltd.;