• Silica Fire Brick for Hot Blast Furnace System 1
  • Silica Fire Brick for Hot Blast Furnace System 2
  • Silica Fire Brick for Hot Blast Furnace System 3
Silica Fire Brick for Hot Blast Furnace

Silica Fire Brick for Hot Blast Furnace

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
10 m.t.
Supply Capability:
10000 m.t./month

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Description:

Silica bricks for hot stoves feature sharp dimension,low expansion,little residual quartz, low true density.low creep rate,good thermal shock resistance upon 600°C and high refractoriness under load, It mainly used at high temperature area include arch and upside of hot stove and upside of checker.  Andalusite bricks are mainly used in the cooling wall of blast furnace, chemical and ceramic industry, the door of coke oven, or as the lining and checker of hot blast furnaces.

 

Application:

1 Building materials for blast furnace                      

2 Building materials for hot-blast stove                      

3 Building materials for coke oven                      

4 Building materials for steel making furnace

5 Kiln car building                      

6 For glass furnace

 

Advantage:

1.Competitive Price. Make the products competitive in your market.

2.Abundant Experience. Prevent cracks and twist in bricks.

3.Different Moulds. Save mould fees for you.

4.Lower ferric Oxide,porosity,higher refractoriness,density,higher CCS and exact tolerance.

5.Strict Quality Control. Meet clients' quality requirement.

6.Safty packing,prompt delivery time,and excellent after-sales services.

 

Typical features:

 

1 Excellent thermal stability                        

2 High refractoriness under load                       

3 Chemical stability and anti-corrision                        

4 Small high temperature creep rate                        

 

Technical data:

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FAQs:

Q1  What’s the transport method?

A1  FCL delivery goods with wooden pallet or wooden case by sea; If LCL delivery, must with wooden case; Sometimes need open top, flat rack or bulk cargo.

Q2  What’s the required payment term?

A2  Generally 30% TT as the prepayment, 70% TT before delivery. If need, 100% Irrevocable Letter of Credit or negotiation.

Q3  Which country are our products exported to?

A3  Apart from entire Chinese market, the US, Russia, Japan, Korea, Australia and some Southeast Asian Nations

 

Refractory Silica Bricks Used in Hot Blast Furnace

Refractory Silica Bricks Used in Hot Blast Furnace


Q: The introduction of silica brick
The silica mineral phase is mainly composed of tridymite and cristobalite, there is a small amount of quartz and glass
Q: Common bond brick?
When adding ingredients, the amount of lime added shall be converted to CaO, and the amount of addition varies depending on the product, usually fluctuating at 1.5~2.5%. For example, the production of coke oven silica brick, the dosage of CaO is 2.0~3.0%; the production of electric furnace top brick, the dosage of CaO is 1.4~1.75%.
Q: What is the effect of the content of silicon nitride in silicon nitride bonded silicon carbide brick on the use of electrobath? Thank you
Small fluctuations in the chemical composition do not have a significant effect on use. The key is the operation of the electrolyzer in production to determine whether the side wall will be damaged.
Q: The introduction of silica brick
The characteristics of silica brick:Brick belongs to refractory materials, with strong resistance to acid slag or acid solution erosion ability, high load softening temperature are excellent properties of silica brick, usually 1640-1680 C.The use of silica brick:Mainly used for masonry brick oven carbonization chamber, a combustion chamber and a partition wall, glass furnace and kiln roof, pool wall, high temperature hot blast furnace, glass furnace, load-bearing pool wall, hot blast stove, baking furnace of carbon bearing part of high temperature furnaces etc.. Rongsheng with refractory
Q: The difference between clay refractory bricks and refractory brick in the application.
Clay brick features good thermal shock resistance and low price, but high temperature performance is not well integrated, and the long-term use temperature is not higher than 1300 degrees. It is widely used in low temperature parts of various kilns.
Q: Semisilica brick interpretation
High temperature volume stability. Volume change is small.
Q: How much is the highest melting point of silicon?
Mainly used for partition, carbonization chamber of coke oven and combustion chamber open hearth furnace regenerator and a sediment chamber, soaking furnace, glass melting furnace refractories and ceramic kiln, kiln vault and other load-bearing parts. Also used for high temperature bearing part of hot blast stove and acid open hearth furnace
Q: Semisilica brick, clay brick, high alumina brick and what is the difference?
This is a kind of refractory material is divided into three types: semisilica brick (A12O315 ~ 30%), clay brick (A12O330 ~ 48%), high aluminum brick (A12O3>48%).
Q: What role does silica play in refractories?
Low fractory refers to the alumina content between 10%~30%, SiO2 content is less than 85%, semisilica brick SiO2 = 65%,The SiO2 content of not less than 93%, refractory material to natural quartz rock as the main raw materials are called silica, silica brick, silica brick, quartz glass and special products. China's literature generally put this type of product is called "siliceous refractory products", which is the most important brick.
Q: Common bond brick?
Lime should contain a lot of active CaO, I decompose CaCO3 and MgCO3 not more than 5%, Al2O3+Fe2O3+SiO2 no more than 5%. When the content of large particles, burned Ca-CO3 and over burned lime, the product produced caves, affecting the quality of products.

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