honeycomb ceramic heat accumulation substrate has low heat expansion coefficient, large surface area, good heat stability

   Honeycomb ceramic heat accumulation substrate has low heat expansion coefficient, large surface area, good heat stability and anticorrosion.It has got a wide application in many industrial productions. Our company has produced more than 10 types of honeycomb ceramic heat storage substrate according to the USA and European series of honeycomb ceramic materials. Typical applications:high temperature heat accumulation and exchange in industrial waste gas treatment for metallurgical,chemical and construction material industries.

   The honeycomb ceramic as heat exchange media is the major part for HTAC( High Temperature Atmosphere Combustion) technology in industrial kiln. The advantages for using honeycomb ceramic as heat exchange media are for HTAC technology as below:

 1.Low thermal value blast furnace coal gas can be used

 2.More than 40% energy can be saved

 3.More than 50% polluted materials in released smoke can be reduced.

 The material for heat exchange media honeycomb ceramic can be cordierite, mullite ceramic, alumina, aluminum titanate etc. Customer can choose the suitable materials according to its application.

The size,parameter,physical performance,chemical component refer to following tables:

 

1.chemical composition:

 

Composition	Alumina Ceramic	Mullite	Cordierite Dense	Cordierite Porous	Stoneware
SiO2	42.8	27.8	47.8	47.9	70.2
AI2O3	50.5	70.1	35.1	33.7	19.4
MgO	-	-	8.5-9.5	12-13	0.18
Fe2O3	0.5	0.8	0.78	1.0	0.5
Na O2+K o2+Ca O	4.8	1.0	2-2.5	1.03	3.3
TiO2+BaO	-	-	0.39	0.78	0.25
High Aluminum	Al2O3>90%	Al2O3>90%	High Silicon	SiO2>98%	SiO2>98%

 

2.Speciality & Sizes:

Quantity of Channels	Channel density (cm2)	Width of channel (mm)	Specific surface area(m2/m3)	Hole fraction (%)
5x5	1	26.3	117	77
13x13	5(1)	9.2	278	64
20x20	11(2)	6.4	455	73
25x25	18(3)	4.9	540	67
40x40	46(7)	3.0	825	65
50x50	72(11)	2.3	1005	57

 

3.Physics performance:

Performance	Units	Alumina Ceramic	Mullite	Cordierite Dense	Cordierite Porous	Stoneware
Density	g/cm3	2.7	2.1	2.47	1.9	2.3-2.4
The hot coefficient of expansion 20-1000	10-6/K-1	5-6	4.5-5	2-2.5	1.5-1.8	4-7
Heat capacity 20-1000	J/kgk	800-900	850-1050	800-1200	750-800	840-920
Heat resisting assaulting	k	150	350	250	300	250
The highest using temperature		1400	1600	1300	1200	1100

honeycomb ceramic heat accumulation substrate