High Alumina Bricks for Lime Kiln Insulation and Fireproofing
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- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3000 pc
- Supply Capability:
- 50000 pc/month
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Insulation Fireproof High Alumina Refractory Bricks used for Lime Kilns
Production description
High alumina refractory brick contain Al2O3 more than 60%, which is made of high grade bauxite through high temperature calcinations. Its refractories is usually above 1750 °C. The main mineral components are corundum and mullite phases. It is a kind of neutral refractory material so that it enjoys excellent resistance to acid and alkali corrosion. According to Al2O3 content,it can be divided into three degrees:The Al2O3 content is more than 75%.The Al2O3 content range from 60% to 75%.The Al2O3 content range from 48% to 60%.
What are the advantages of our refractory bricks?
1. High-temperature endurable .
2.Good thermal shock resistance.
3.High cold crushing strength
4.Good resistance to abrasion and corrosion.
5.Good thermal spalling resistance.
6.High mechanical strength.
7.Good volume stability at high temperature.
How many types are there in our refractory bricks
According to the using eqiment:The high alumina is divided into different kinds according to the content alumina and usage,they are widely used in glass furnace, blast furnace,hot blaststoves electric arc furnace,cement kiln and other heat-engineering equipments.
According to its property and function :Common high alumina bricks,phosphate-bonded high alumina bricks for cement kiln,spalling resistance high alumina bricks.
products \index | code | Al2O3≥ | Fe2O3≤ | Bulk Density≥ | Apparent Porosity ≤ | Cold crushing strength ≥ | Refractoriness under load ≥(0.2Mpa) |
Unit | %
| g/cm3 | % | MPa |
°C | ||
High alumina brick | LZ-48 | 48 | 2.0 | 22 | 35 | 1420 | |
LZ-55 | 55 | 2.0 | 22 | 40 | 1450 | ||
LZ-65 | 65 | 2.0 | 23 | 45 | 1500 | ||
LZ-75 | 75 | 2.0 | 23 | 50 | 1520 | ||
LZ-80 | 80 | 1.8 | 22 | 55 | 1530 | ||
| phosphate combines high alumina bricks | P | 75 | 2.5 | 2.65 | 75 | 1350 | |
| PA | 77 | 2.5 | 2.70 | 75 | 1300 | ||
spalling resistance high alumina bricks.
| KSL-65 | 65 | 1.6 | 2.45 | 24 | 40 | 1500 |
| KBL-75 | 75 | 1.6 | 2.6 | 24 | 45 | 1520 | |
Production & Quality
1.Production Process
Crushing→Mixing→Shaping→Drying→Firing→Inspection→Packing shipment
2.Quality Control
a.According to the chemical content,raw materials are classified into different levels to ensure quality of brick first.
b.During the production,every brick will be weighed twice strictly to reduce the error of weight .
c.Before delivery, the inspectors will inspect the size,appearance,physical and chemical properties of brick again in factory.
F&A
Q1.Are you a manufacture or trader?
A:To be honest we are a trader,but we have stable cooperation factories.And we can supply good pre-sale service, after-sales service.
Q2.Can we visit your company?
A:Sure,welcome at any time,seeing is believing.
Q3. Do you provide samples?
Yes, samples are available.
Q4. Do you accept OEM?
Yes, we can do OEM.
Q5.What's the MOQ of trial order?
A:No limit,We can offer the best suggestions and solutions according to your condition.
Q6.What are the payment terms?
Usually T/T,but L/C,Western Union etc are available for us.
Q7. How long is delivery time?
The delivery time will be determined according to the quantity of the order.
Q8.How are your products’ quality?
The products will be strictly inspected before shipment, so the quality could be guaranteed.
Q9.How to slove the quality problems?
A:If the products are not confirmed to customer samples or have quality problems,our compay will be responsible to make compensation for it.
Q10.What is the service life of your bricks?
A:The service life of different bricks is unlike.It also depends on your using condition and method.
Q11.How about your company's certification?
A:ISO9001 and Test Report,also we could apply other necessary certification.
- Q: Introduction of high alumina brick
- Three alumina silicate refractory product with a content of two Al2O3 (48%).
- Q: What is the difference between corundum and high alumina??
- The difference between them lies in the content of alumina and the alumina refractory products with alumina content higher than 48%The content of Al2O3 is higher than 90%, which is called corundum brick.
- Q: Application characteristics of high alumina brick
- Refractoriness. High alumina brick products are advanced varieties of aluminium silicate refractory products, and their refractoriness increases with the increase of Al2O3 content, generally not less than 1750 - 1790 DEG C. If the content of Al2O3 is more than 95% of corundum brick, the refractoriness can be as high as 1900-2000 degrees.
- Q: What's the difference between high alumina refractory bricks and high alumina refractory bricks?
- The chemical pH value of high alumina refractory brick belongs to neutral and alkaline refractory brick, and clay refractory brick belongs to neutral and acid refractory brick.
- Q: What is the density of a super high alumina brick and what is the price?
- Of course, the transaction price, please choose refractory brick manufacturer is better.
- Q: What is the content of free silica in the refractory bricks of high alumina bricks?
- In the meantime, the free silica content of silicon brick is as high as 90% above. Therefore, the most serious damage is silicon brick, followed by clay brick, high alumina brick, magnesia brick and so on.
- Q: Difference between low creep high alumina brick and ordinary high alumina brick
- The emphasis is on the physical and chemical indexes of low creep and high alumina bricks. The physical and chemical indexes of the high alumina bricks are different, too. They are DRL-1550And LZ-75 perform GB GB/T2988-2012
- Q: What is the difference between metal compounds and metal solid solutions?
- A series of intermetallic compounds occurring between transition metals in intermetallic compounds. The most important are L sigma sigma phase and ves phase, they are topologically close packed (TcP) phase, they consist of a small atomic radius of a dense layer, which is inlaid with a large atomic radius of atomic structure, this is a highly dense pile. In addition to atomic size factors, their formation is also influenced by the concentration of electrons.
- Q: What are the lining structures of lime rotary kilns and what are the requirements for refractories?
- The physical and chemical properties of refractory materials used in rotary kiln are as follows: physical and chemical properties of refractory materials used in rotary kilnMaterial name: high temperature compressive strength (MPa), softening temperature (DEG C), thermal shock resistance (1100 DEG C, cold water), sub volume density (g/cm3)Magnesia spinel brick is greater than or equal to 50 is greater than or equal to 1700 = 12 = 2.95High alumina brick is greater than or equal to 75 = 1520 = 8 = 2.57High aluminum bricks more than 50 = 1700 = 12 = 1The clay brick is greater than or equal to 30 = 1400 = 12 = 2.30
- Q: High alumina brick 80 with which high aluminum cement?
- Which kind should be chosen should be determined according to the conditions of use, life expectancy and cost control. By the way, the quality of masonry is also very influential.
Send your message to us
High Alumina Bricks for Lime Kiln Insulation and Fireproofing
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 3000 pc
- Supply Capability:
- 50000 pc/month
OKorder Service Pledge
OKorder Financial Service
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