Honeycomb protective block In regenerative furnace

Products introduction:

Honeycomb protective blocks are also named as “baffle bricks” in China. In regenerative furnace (such as RTO application), they are installed in front of honeycomb ceramics to protect honeycomb ceramics and extend the life of them. So the first thing to consider is their high-temperature property and thermal shock resistance.Honeycomb protective blocks, with white fused alumina as the main raw material, are of fine high temperature stability and excellent thermal shock resistance effect. Using our white fused alumina blocks, you can double the using life of honeycomb ceramics; significantly reduce the downtime of plant and production costs.

Product Details

Chemical composition and Physical properties

Items	White fused alumina	Mullite	Normal alumina ceramics
Al₂O₃ (%)	80-86	56-65	53-60
SiO₂ (%)	11-19	32-41	37-44
Others (%)	≤3	≤3	≤3
Specific gravity (g/cm³)	1.7	1.5	1.5
Thermal expansion (X10-6/OC)	6.5-8	7-8	7-8
Max. operating Temp. (OC)	1650	1450	1350
Compressive strength (MPa)	>35	>30	>30

Technical Data Sheet

Size (mm)	Cell size (mm)	Wall thickness (mm)	Specific surface (m2/m3)	Porosity (%)
200×80×100	Ф14	6-8	87	36
250×80×100	Ф14	6-8	87	36
300×80×100	Ф14	6-8	87	36
350×80×100	Ф14	6-8	87	36
400×80×100	Ф14	6-8	87	36
450×80×100	Ф14	6-8	87	36
500×80×100	Ф14	6-8	87	36
200×100×100	Ф14	6-8	80	36
250×100×100	Ф14	6-8	80	34
300×100×100	Ф14	6-8	80	34
350×100×100	Ф14	6-8	80	34
400×100×100	Ф14	6-8	80	34
450×100×100	Ф14	6-8	80	34
500×100×100	Ф14	6-8	80	34
600×100×100	Ф14	6-8	80	34

（Above is routine data, we can upgrade it as you require)

Chemical composition and Physical properties

Items	White fused alumina	Mullite	Normal alumina ceramics
Al₂O₃ (%)	80-86	56-65	53-60
SiO₂ (%)	11-19	32-41	37-44
Others (%)	≤3	≤3	≤3
Specific gravity (g/cm³)	1.7	1.5	1.5
Thermal expansion (X10-6/OC)	6.5-8	7-8	7-8
Max. operating Temp. (OC)	1650	1450	1350
Compressive strength (MPa)	>35	>30	>30

Technical Data Sheet

Size (mm)	Cell size (mm)	Wall thickness (mm)	Specific surface (m2/m3)	Porosity (%)
200×80×100	Ф14	6-8	87	36
250×80×100	Ф14	6-8	87	36
300×80×100	Ф14	6-8	87	36
350×80×100	Ф14	6-8	87	36
400×80×100	Ф14	6-8	87	36
450×80×100	Ф14	6-8	87	36
500×80×100	Ф14	6-8	87	36
200×100×100	Ф14	6-8	80	36
250×100×100	Ф14	6-8	80	34
300×100×100	Ф14	6-8	80	34
350×100×100	Ф14	6-8	80	34
400×100×100	Ф14	6-8	80	34
450×100×100	Ф14	6-8	80	34
500×100×100	Ф14	6-8	80	34
600×100×100	Ф14	6-8	80	34

（Above is routine data, we can upgrade it as you require)

Packaging & Shipping

Package :	Carton box、 Jumbo bag、wooden case
Container	20GP	40GP	40HQ	Normal order	Minimum Order	Sample order
Quantity	25 CBM	54 CBM	68 CBM	<25 CBM	1 CBM	< 5 pcs
Delivery Time	7 days	14 days	20 days	7 Days	3 days	Stock
Comments:	Customized making is allowed.

Application

Packaging & Shipping

Package :	Carton box、 Jumbo bag、wooden case
Container	20GP	40GP	40HQ	Normal order	Minimum Order	Sample order
Quantity	25 CBM	54 CBM	68 CBM	<25 CBM	1 CBM	< 5 pcs
Delivery Time	7 days	14 days	20 days	7 Days	3 days	Stock
Comments:	Customized making is allowed.