High Alumina Brick for Rotary Kilns
- Ref Price:
-
$50.00 - 60.00
/ m.t.
- Loading Port:
- Qingdao
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 5000 m.t./month
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High Alumina Bricks for Rotary Kilns
Composite of High Alumina Bricks
High Alumina Bricks are classified according to alumina content ranging from 48% to 90%.
Main Features of High Alumina Bricks
Low thermal conductivity
Excellent acid and base slagging resistance
High refractoriness
Excellent thermal shock resistance
Excellent mechanical strength
Application of High Alumina Bricks
commonly used in blast furnace, hot blast furnace, the roof of electric furnace, teeming ladle, rotary kiln, regenerator, etc
High Alumina Bricks Images
Specification of High Alumina Bricks
HIGH ALUMINA BRICK---ALP85 | |
Apparent Porosity (%) | ≤18 |
Bulk Density (g/cm3) | ≥2.85 |
Cold Crushing Strength (Mpa) | ≥80 |
Modulus Of Rupture (Mpa) | ≥20 |
Refractoriness Under Load (0.2 Mpa)(℃) | 1450 |
Permanent Linear Change (%) | 1500℃×3h -0.5 ~+0.5 |
Chemical Composition (%) |
|
Al2O3 | ≥82 |
Fe2O3 | ≤1.5 |
P2O5 | ≤3 |
FAQ of High Alumina Bricks
Q1:Are you a manufacture or trader?
A:Factory+trade(mainly factories, at the same time, we operates other related products).
Q2:Can we visit your factory?
A:Sure,welcome at any time, seeing is believing.
Q3:What's the MOQ of trial order?
A:No limit, We can offer the best suggestions and solutions according to your condition.
Q4:Which payment terms can you accept?
A:T/T,L/C are available for us.
Q5:After an order is confirmed, when to deliver?
A:15-25days after deposit.
Q6:Is your company accept customization?
A:We have own factory and excellent technical team, and we accept OEM service.
Q7:How about your company's certification?
A:ISO9001 and Test Report, also we could apply other necessary certification.
Q8:How to solve the quality problems?
A:If the products are not confirmed to customer samples or have quality problems, our company will be responsible to make compensation for it.
Q9:Can you offers samples?
A:Of course, samples are free but freight paid by the buyers.
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.
- Q: What is fireproof concrete?
- Silicate fireproof heat-resistant concrete using temperature can reach 700 DEG ~800 DEG, the main mechanism of its heat is dehydrated calcium hydroxide silicate hydrates series of cement clinker under high temperature, the calcium oxide and slag and mixing activated silica material in the three and two aluminum oxide and the reaction of anhydrous calcium silicate and anhydrous aluminum acid calcium has strong heat resistance, the fire resistance of concrete is a certain. Such as the use of high alumina bauxite and broken bricks, magnesia brick and magnesia for fireproof heat-resistant concrete materials with the highest using temperature can reach 1100 DEG C.
- Q: Is there a big difference between two high alumina brick and one high alumina brick?
- According to my experience, two kinds of high alumina bricks from the index, there is a big difference between the content of AL2O3, a high aluminum brick in 75%, two grade high alumina bricks in 65%, so the content is not the same, also decided that the use of temperature difference, the difference is very big.
- Q: What are the reasons for the spalling of refractory bricks in the production of lime kiln?
- In the course of the production of lime kiln, the local block of refractory brick is a very dangerous signal. It is suggested that you stop the kiln to prevent the collapse of a large area. Lime kiln is the main equipment for the production of limestone kiln and rotary kiln is two, with the growth of calcium carbide lime kiln industry, iron and steel industry, the construction industry to the amount of limestone has become the main production equipment, and refractory bricks became the heart of lime kiln.
- Q: In 2016, a few of the traditional refractory materials will be able to survive
- In short, the overall market of refractory enterprises is in a turbulent adjustment process, but the volume is still in place. Elimination is inevitable, as to how many can be eliminated, dare not assert.
- Q: What are the requirements for Rubble backfill height?
- 1, filling thickness is not greater than 50cm.2, filling, the use of layered filling.
- Q: What is the price of the first grade high alumina brick?
- Many factories in Xinmi have high alumina bricks, but they must choose a regular factory. Kuwait refractory level high aluminum brick price at around 1600, the quality of double stable supply
- Q: How are the high alumina bricks fired?
- Light and high alumina bricks are usually fired in a weak oxidizing atmosphere. In light and high alumina bricks firing, they are often rich in impurities such as R2O, RO, Fe2O3 and so on. They react with Al2O3 and SiO2 at high temperature to produce liquid phase. In the Al2O3 - SiO2 - R2O system, the growth rate of liquid phase increases with the increase of temperature at high temperature. So, because the increase of sintering temperature brings a lot of liquid phase, the decrease of liquid viscosity will lead to the deformation of brick and the decline of brick high temperature function. Therefore, the lower sintering temperature and longer holding time should be adopted in the sintering process dominated by liquid phase sintering. The production practice shows that the same firing temperature can be used for the high grade aluminum bricks. When fired in an inverted flame kiln, it is usually 1430 degrees centigrade and insulated by 40H. The high alumina bricks such as Ill are 1390~1420 degrees centigrade. When the tunnel kiln is fired, they are 1550 and 1450~1500 degrees centigrade respectively. High alumina brick is usually made of weak oxidizing atmosphere.
- Q: What is the content of free silica in the refractory bricks of high alumina bricks?
- Refractory powders are not rich in free silica in varying degrees
- Q: What are the alloy wear resistance materials?
- KNMn19Cr2 (patent) high manganese alloy (ZGMn13Cr2MoRe), super high manganese alloy (ZGMn18Cr2MoRe); two: anti-wear chromium cast iron series: such as high, medium and low chromium alloy cast iron (Cr15MOZCu); three: wear resistant alloy steel series: such as, low and high carbon multi metal combined steel (such as ZG40SiMnCrMO and ZG35Cr2MoNiRe); four: ADI (ADI) series; five: all kinds of composite or gradient material and hard alloy materials, nano KN alloy (patent product): such as chromium carbide composite (Cr2C3+Q235), high-energy ion osmosized tungsten carbide materials (WCSP), high toughness of cemented carbide (YK25.6), KN999 nano alloy (Beijing Naimo patent) etc.;
- Q: How much is one ton / ton of high alumina refractory brick?
- The market price of about super high aluminium brick price at 3000 yuan / ton, a high aluminum brick at around 2500 yuan / ton, two high aluminum bricks at around 2100 yuan / ton three grade high alumina bricks at around 1850 yuan / ton for reference, choose to buy the area is not the same as the prices are not the same.
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High Alumina Brick for Rotary Kilns
- Ref Price:
-
$50.00 - 60.00
/ m.t.
- Loading Port:
- Qingdao
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5 m.t.
- Supply Capability:
- 5000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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