Thermal Storage Mulite Honeycomb Ceramic for Heat Recovery

• Customization: Available
• Customized: Customized
• Certification: CE, ISO
• Model NO.: OB-PHC
• Sectional Shape: Cube
• Performance: Temperature Resistant
• Material: Nonmetallic
• Cell Number: 5X5 Cells - 60X60 Cells
• Cell Shape: Square, Hexagon, Circular, Triangle, etc.
• Temperture Resistant: 1350~1450 Degree C
• MOQ: 100PCS
• Transport Package: Wooden Box
• Specification: Customized
• Trademark: obbo
• Origin: China
• HS Code: 8708920000

Product Description

Product Description

 

> Honeycomb Ceramics 

Honeycomb ceramic heat recovery media is a key component of regenerative burner, which is widely used in iron and steel, machinery, building materials, petrochemicals, nonferrous metal smelting and other industries, furnace, hot air furnace, heat treatment furnace, cracking furnace, baking, melting furnace, both in the hot furnace, oil and gas boilers, and furnaces. The technique is to make two ceramic media beds alternating endothermic exothermic by reversing device. Most common applications include: RTO, (RCO), metal casting combustor, metal melting industrial furnace, etc.

Compared with other ceramic media which have conventionally been used in RTOs. The advantages of honeycomb monolith include a greater thermal efficiency and a lower pressure drop across the heat exchanger bed. The increase in thermal efficiency and lower pressure drop generally results in smaller equipment design, lower capital cost and lower operating cost. Honeycomb ceramic serves as a more efficient alternative for the following reasons: cutting fan load for significant energy saving (low pressure drop owing to straight channels), less volume, thin wall thickness, faster in thermal exchange. Lighter weight, so less structural support is required. Above all, High specific surface area means high conversion efficiency in converters occupying small volumes. All these benefit, especially larger specific surface area make honeycomb ceramic the better performance media across industries.

> Materials

Alumina Ceramics
Alumina Ceramics is the most widely used advanced ceramic material. Owing to its highly strong ionic inter-atomic bonding, alumina offers good performance in terms of chemical and thermal stability, relatively good strength, thermal and electrical insulation characteristics at a reasonable price. With a range of purities and also the relatively low cost in raw material production it is possible to utilize alumina for wide ranging applications across a variety of different industries.

Mullite Ceramics Alumina 
Mullite occurs very rarely in nature because it only forms at high temperature, low pressure conditions, so as an industrial mineral, mullite has to be supplied by synthetic alternatives. Mullite is a strong candidate material for advanced ceramics in industrial process for its favourable thermal and mechanica properties: low thermal expansion, low thermal conductivity, excellent creep resistance, suitable high temperature strength and outstanding stability under harsh chemical environments.

Dense Alumina & Dense Cordierite
Low water absorbtion (0-5%)
High density, High heat capacity
Large specific surface area, greater thermal efficiency
Strong anti-acid, anti-silicon, anti-salt. Low block rate

Silicon Carbide Ceramics
Silicon carbide is notable for its hardness, high melting-point and high thermal conductivity. It can retains its strength at temperature as high as 1400 °C and offers excellent wear resistance and thermal shock resistance. It has well-established and wide-spread industrial applications as catalyst supports and hot-gas or molten metal filters because of its low thermal-expansion coefficient and good thermal-shock resistance as well as excellent mechanical and chemical stability at elevated temperature environments.

Cordierite Ceramics
Cordierite has a superior thermal shock resistance due to their intrinsic low coefficient of thermal expansion (CET), coupled with relatively high refractoriness and high chemical stability. Therefore, it is often used as high temperature industrial applications, such as: heat exchangers for gas turbine engines; honeycomb-shaped catalyst carriers in automobile exhaust system.


Corundum Ceramics 
1, high purity: Al2O3> 99%, good chemical resistance
2, temperature resistance, long-term use at 1600 °C, 1800 °C short-term
3, thermal shock resistance and good resistance to crack
4, slip casting, high density, high purity alumina


Material:
Corundum mullite, mullite Cordierite, Cordierite, mullite, zirconium mullite, silicon carbide composite, etc

Shape:
Square, rectangle, circle, triangle, hexagonal hole, etc

Product Parameters

  

RTO/RCO honeycomb ceramics Main Size:

L*W*G(mm)	150x 150 x 300(150)
Number of Cell	25x25=625	40x40= 1600	43x43=1849	50x50=2500	60x60=3600
Width of Cell(mm)	4.95	3.02	2.81	2.38	1.98
Thickness of inner wall(mm)	1.0	0.7	0.65	0.6	0.5
Surface Area(m2/m3)	577	886	950	1084	1294
Opening Ratio(%)	68	65	65	63	63

RTO/RCO honeycomb ceramics Physical Properties:

Item	Aluminum Porceian-cordierite	Dense aluminum porcelain	Cordierite	Mullite-Cordierite	Mullite	Enamel
Density(g/cm3)	2.0~2.3	2.4~2.6	1.6~1.9	1.7~2.0	2.0~2.4	1.7~2.0
Bulk density (g/cm3)	0.65~0.8	0.65~0.8	0.6~0.7	0.65~0.75	0.65~0.8	0.65~0.75
Thermal Expansion Coefficient (X10-6°C-1) (RT-800°C)	≤6	≤6	≤3	≤3.5	≤5.5	≤6.5
Specific heat capacity (J/Kg.k)	950~1150	1000~1200	900~1100	900~1100	1000~1150	900~1100
Thermal Conductivity (w/m.k)(20-1000°C)	1.5~2.0	1.5~2.0	1.2~1.8	1.4~1.9	1.5~2.0	1.4~1.9
Thermal shock resistance Max Temperature(ºC)	≥400	≥300	≥450	≥350	≥350	≥300
Advised Max Temperature(ºC)	1250	1350	1150	1250	1450	1200
Water Absorption Rate(%)	≤20	≤5	≤22	≤20	≤20	≤10

RTO/RCO honeycomb ceramics Chemical composition:

Item	Aluminum Porceian-cordierite	Dense aluminum porcelain	Cordierite	Mullite-Cordierite	Mullite	Enamel
SiO2	25~35	25~35	45~55	40~50	25~35	68~72
Al2O3	55~65	55~65	28~38	55~65	55~65	22~26
MgO	2~4	2~4	11~14	5~9	≤2	≤0.5
Fe203+TiO2	1~4	1~4	1~3	1~3	1~4	1~3
Others	≤5	≤5	≤5	≤5	≤5	≤5

 

The unique advantages of plate-type honeycomb ceramics used in RTOs:
1. Plate type honeycomb ceramics have strong anti-clogging properties.

2. The special formula of the side wall cement of the plate-type honeycomb ceramic module can be opened by thermal shock and release the thermal stress. The single piece has strong thermal stress resistance, △T>400 ºC, and is not easy to be damaged.

3. The air distribution is uniform and the turbulence is high, which improves the thermal efficiency and helps to improve the VOC removal efficiency.

4. The porosity is large, the pressure of the air flow through the plate-type honeycomb ceramic is reduced, and the operating cost is reduced.

5. The plate-type honeycomb ceramics are installed at a 90° angle between the upper and lower adjacent layers to change the direction of the airflow, increase the turbulence, and correct the small defects of uneven airflow distribution and improper installation.

 

RTO equipment mainly deals with volatile organic compounds (VOCs), and typical organic waste gases include hydrocarbons, aromatic hydrocarbons, alcohols, ketones, aldehydes, ethers, phenols, esters, nitriles, etc. and their derivatives. Widely used in chemical industry, automotive paint, spray paint drying equipment, organic chemical industry, petrochemical industry, engraving printing, offset printing, food processing and other fields.

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FAQ

1.Q:Are you trade company or manufacture?
A:We are manufacture with more than 14 years experience,and the price is the factory price.

 

2.Q:How to control the quality?
A:We have strict quality by QC team.

 

3.Q:How long is the delivery time?

A:It is about 5 days after payment for stoct goods,10-15 days for new producing goods.

 

4.Q: How to get the sample ?

A: Please contact us for send your samples.

 

5.Q:What is the payment terms?

A:Flexible and diverse payment ways can be chosen, make you more convenient .

Generally,30% in advance,70% before shipment

 

6.Q:Can you do OES service?

A:Yes,size & shape could be made as customer requirment