| Customization: | Available |
|---|---|
| Application: | Blast Furnace, Cement Kiln, Ceramic Kiln, Chemical Kiln, Glass Kiln, Steel-Making Furnace, Industrial Furnaces |
| Material: | High Alumina |
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High Alumina Brick Description:
High alumina refractory brick is a kind of refractory brick with high content of alumina. This brick belongs to neutral refractory material. Customers can use high alumina bricks in various industries except the environment of strong acid and strong alkali. Additionally, high alumina refractory brick is known for excellent resistance to high heat and corrosion. To make it clear, we introduce chemical composition of high alumina refractory brick here:
Alumina: Alumina is the primary ingredient of high alumina bricks. Additionally, the Al2O3 content of high alumina brick is commonly 45-95%. The higher the alumina content, the higher the refractoriness.
Silica: Silica is often present in high alumina bricks as a secondary component. It helps to enhance the refractory properties and thermal stability. Besides, the silica content in high alumina bricks is typically below 15%.
Other Additives: High alumina refractory bricks may contain small amounts of mineralizers and fluxes to improve their properties. Besides, the specific composition and amounts of these additives depend on the desired properties of the bricks.
High Alumina Brick Classification:
According to the content of alumina, high alumina bricks can be divided into several grades:
Special Grade(Al2O3 content 75%~85%): The refractoriness exceeds 1790ºC, which is suitable for high-temperature environments, such as the lining of blast furnaces and hot blast furnaces.
First Grade(Al2O3 content 70%~75%): The refractoriness is about 1770ºC, which is often used in electric furnace tops and other high-temperature equipment.
Second Grade(Al2O3 content 60%~70%): The refractoriness is also around 1770ºC, which is suitable for high-temperature occasions such as cement kilns and glass melting furnaces.
Third Grade(Al2O3 content 48%~60%): The refractoriness is between 1420ºC and 1460ºC, which is suitable for industrial furnaces with relatively low-temperature requirements.
High Alumina Brick Features:
High Refractoriness: The refractoriness of high alumina bricks is usually above 1750°C and can withstand extremely high temperatures.
Good Corrosion Resistance: It has strong resistance to acidic and alkaline slags and can effectively extend the service life of the furnace lining.
Excellent Thermal Stability: Under high-temperature conditions, it has good thermal shock resistance and is not prone to cracks or breakage.
High Mechanical Strength: It has high compressive strength and wear resistance and can operate stably under high temperatures and high-pressure environments.
High Alumina Brick Advantages:
High Efficiency and Energy Saving: The excellent thermal insulation performance of high alumina bricks can significantly reduce heat loss and improve energy utilization.
Environmentally Friendly and Durable: Long service life, reducing the frequency of repairs and replacements, saving maintenance costs, and reducing environmental impact.
Customized Services: Provide tailor-made solutions according to customer's special needs and usage environment.
High Alumina Refractory Brick Specification
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Item
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LZ-80
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LZ-75
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LZ-70
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LZ-65
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LZ-60
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LZ-55
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LZ-48
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Al2O3, /%
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≥
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80
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75
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70
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65
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60
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55
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48
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Apparent Porosity, %
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≤
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21
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24
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24
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24
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26
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22
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22
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Cold Crushing Strength, MPa
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≥
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70
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60
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55
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50
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45
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45
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40
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0.2MPa Refractoriness Under Load, ºC
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≥
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1530
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1520
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1510
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1500
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1430
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1450
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1420
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Permanent Linear Change, %
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1500ºC*2h
-0.4~0.2
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1450ºC*2h
-0.4~0.1
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Size, mm
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230*114*65, Customized
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High Alumina Brick Application:
High alumina refractory bricks are widely used in many high-temperature industrial fields, mainly due to their superior fire and corrosion resistance. The following are the main application areas of high alumina refractory bricks:
Metallurgical Industry: High alumina bricks are widely used in the lining of blast furnaces, hot blast furnaces, electric furnace tops, ladles, and other equipment. These applications require refractory bricks to withstand high temperatures and erosion from molten slag.
Cement Industry: In cement kilns, high alumina bricks are used to withstand high temperatures and chemical corrosion to ensure the stability and safety of the production process.
Glass Industry: High alumina bricks are used to line glass melting furnaces to withstand the high temperature and chemical corrosion of molten glass.
Ceramic Industry: High alumina bricks are used to build kilns to ensure the fire resistance and thermal stability of the kiln.
Chemical Industry: High alumina bricks are also used in chemical equipment, especially in environments that require high temperatures and corrosion resistance.
The classification of high alumina bricks is based on the alumina content and is suitable for different working environments.
Packaging : Packed by sea-worthy wooden pallet + shrink wrapped + carton For example, Standard size of high alumina brick : 230x114x65mm Shipping : 384pcs/plt x 18 plots in one 20 feet container;
ZHENGZHOU RONGSHENG REFRACTORY CO., LIMITED has 30 years of experience in R & D and design of unshape refractory experts, holds 20 utility model patents and 7 invention patents, and has passed the ISO quality, environment and safety management system certification.
The company is committed to the R & D, production and service of refractories used in metallurgy, electric power, nonferrous metals, building materials, chemical industry and other industries. Its products cover 198 kinds of materials and 2369 varieties in three categories (acidic, neutral and alkaline), providing overall solutions for refractories for 1200 domestic and 200 foreign customers.The products are mainly all kinds of stereotyped and amorphous refractories, with full refractory physical and chemical index testing equipment and testing system, through ISO quality, environment, safety three management systems.
Rongsheng Refractory has established complete quality system and conducted quality control through the whole staff and process that from raw materials, production, check and various parts strictly according to ISO9001 standard.Annual production capacity is up to 60000 tons. There are light and heavy weight materials production lines and all kinds of complete production, testing and check equipment, of which there are 10 series shaped press machine that from 400 tons to 1000 tons and two hyperthermia tunnel kilns whose length are 148m and 118m.
Rongsheng holds the third-level qualification certificate of metallurgical general contracting for furnace construction, the second-level anti-corrosion insulation qualification certificate, the quality management system ISO 9001 certification, 14001 certification, 45001 certification, 18001 certification and AAA-level credit enterprise certification. 25 Years of experience, more than 2,000 furnace cases around the world, and a team that can execute more than 20 furnace construction projects at the same time.
1.Are you a manufacturer or a trader?
Manufacturer, some time we help our clients to purchase related products as a trader.
2.What's the MOQ?
The MOQ varies for different products. Please contact us to understand.
3.How do you guarantee quality?
Always a pre-production sample before mass production;Always final Inspection before shipment;
4.Can you provide samples for free?
Yes, we can supply samples for free, and the freight will be undertaken by clients.
5.May I visit your factory?
Yes, we will arrange professional reception personnel to patiently explain to you.
6.Why choose you over other suppliers?
We have a large scale, strong strength, and rich experience, professional technology, and perfect customer service, and have obtained various certifications such as CE/ISO9001/ISO45001.
7.What services can you provide?
Any delivery terms are acceptable
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we can provide you with the most advantageous quotations and products. Looking forward to be your partner!
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