China-made Corundum High Chrome Refractory Brick

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
1 m.t.
Supply Capability:
1000000 m.t./month

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Product Description:

The chrome corundum brick, which is characterized by good mechanical property at high temperature and chemical stability etc., is mainly used as the back lining of the coal water slurry gasifier and petrol coke pressurized gasifier in petrochemical industry, the inner lining of reaction furnace in chemical industry, and high temperature kilns in refractory industry.

So far, it has been applied in the gasifiers imported or China-made in more than 60 plants with good performance. The brick was awarded the Second Prize of Science Progress of Ministry of Chemical Industry. The annul capacity of the chrome corundum bricks is more than 4000 tons.  

 

 

  Physical and chemical index

 

Properties

CRCB-5CRCB-12CRCB-20   CRCB-30ACRCB-30B
Long term service temperature, ℃18001850185018501850
Cr2O3, %       ≥5    12       192430
Al2O3+ Cr2O3 , % ≥93939393--
Al2O3+ Cr2O3 + ZrO2 ,%    ≥--------93
Fe2O3,%      ≤0.40.40.40.40.4
Bulk Density, g/cm3      ≥3.153.203.203.303.35
Apparent Porosity , %       ≤1818181818
Cold Crushing Strength,MPa  ≥7580809090
Reheating Linear change ,%(1600℃ × 3h)

1700




Refractoriness under load, ℃(0.2MPa,0.6%),  ≥                                    ±0.3

 

Our Services

 

 

♥  Research of application basis, new technical process and new technology, development of new product, and technical consultation.

♥  Optimum solution and product supply of refractories for high temperature industries, such as iron&steel, non-ferrous, petrochemical and building materials.

♥  Engineering design, contract and consult for refractories, and civil architecture design.

♥ Research,development, manufacture and sale of superhard materials.

♥ R&D, manufacture and sale of special packing materials for export.

♥ Inspection,supervision and arbitration of refractories.

♥ Consultation and services in refractories information.

♥ Training and cultivation of high-level talents in refractories profession


China-made Corundum High Chrome Refractory Brick

FAQ

Q3: Can you offer Door-to-Door delivery?

A3: Yes, but only for some countries such us U.S., UAE, Saudi Arabia, Iran, and Russia, etc.

 

Q4: What is the minimum quantity?

A4: There is no minimum order quantity. Depending on the item and processing, there may be a minimum produc


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Q:What refractory materials are adopted in each part of the blast furnace
The furnace throat is a part of the direct impact and friction when the burden drops, and the high density and high alumina brick is usually adopted. The upper and middle shaft temperature is only 400~800 degrees, the parts with high alumina brick and sillimanite brick.
Q:What's the size of the fused zirconia corundum refractories for glass furnace? What are the main kilns? How much is the dosage?
Fused zirconia corundum refractory material of glass fiber kiln quantity is little, generally used in the kiln feed arch furnace flue, where large amount of places are currently using dense zirconium Zr, dense chromium
Q:What problems should we pay attention to in the use of fused zirconia corundum brick (fused zirconia corundum brick) in glass furnace?
The expansion curves of fused cast AZS brick at 1000 DEG C near a crystal anomaly, its internal changes of ZrO2 crystal are reversible, with large volume change, therefore, products containing ZrO2, should not be used in the temperature of 1000 DEG C, often have sharp fluctuations in the position. When baking the kiln, the temperature can not be too large at 900~1150 degrees centigrade. Generally, the temperature can not exceed 15 degrees /h, and the temperature should be raised steadily. Some parts to prevent the cold, with other brick protection, to prevent explosion.
Q:What kind of rock is corundum produced?
Aluminum oxide (Al2O3) mineral. Due to Mohs hardness of up to 9, mainly used as high-grade abrasives. The crystal belongs to the three party system, a dolioform six square column, some are needle or plate. Aggregates are massive or columnar. Usually white, gray, yellow and other colors. If a small amount of Cr3+ is red, a ruby is called;
Q:What are the advantages of refractories?
Special refractories are new inorganic non-metallic materials developed on the basis of traditional ceramics and refractory materials. For example, AZS brick, corundum brick, magnesia chrome brick, silicon carbide, silicon nitride bonded silicon carbide, nitrides, silicides, sulfide, boride, carbide and other non oxide refractory materials; calcium oxide, chromium oxide, alumina, Magnesium Oxide, beryllium and other refractory materials. Often used insulation refractories are diatomite products, asbestos products, insulation panels and so on
Q:Can the PE sintering plate dust collector be suitable for dust removal in the coking plant?
The sinter plate dust collector is also called plastic plate dust collector. The utility model has the advantages that the utility model can adapt to various complicated working conditions, the dust removal rate is 99.99%, the utility model has the advantages of long service life, stable operation, high temperature resistance, and the utility model is a leading dedusting equipment in china.
Q:How much is a refractory brick?
This question is too general, refractory bricks according to the use of the environment and industry, there are a variety of materials, a variety of specifications, prices vary greatly.
Q:Ask for help about the phase of refractory material
Secondary crystalline phase. The second phase and second phase or second phase, and the main crystal phase and is in high temperature liquid phase coexistence in refractory material, the number and influence on high temperature properties of materials is the main crystal phase is small second phases. As to the main crystalline phase of periclase magnesia chrome brick, magnesia brick, magnesia brick and magnesia calcium brick respectively containing Cr spinel, spinel, forsterite and calcium silicate two are secondary phase. There are structure of refractory refractory material in the crystal phase, especially the direct combination of high melting point and so on, the resistance to high temperature also tend to benefit. Compared with the ordinary brick, the second phase of the refractory products, make the products refractoriness under load are improved. Many according to mineral composition of refractory material named, such as mullite corundum brick, corundum mullite brick, is its main crystal phase and the second phase composite named. The former is mainly crystal phase, the latter is sub crystalline phase.
Q:What equipment is used for producing diamond blanks? How much is the investment?
Plus all the cables fifty thousand. Steel 10000 yuan. Corundum bricks; insulating bricks; clay bricks, these three require more than ten thousand. The electrode is about one hundred thousand. It's just an investment in an electric furnace. Together with the rear section processing and raw materials need hundreds of thousands of.
Q:How do corundum bricks bind?
Each refractory brick is provided with corresponding refractory mud, and corundum bricks are bonded with corundum mud.

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