Silica Brick for Hot Blast Stove/Furnace

Silica Brick for Hot Blast Stove/Furnace

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 100000 m.t./month

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General Information
Modern hot stoves hot blast average temperature is up to 1,250 ℃- 1,300 ℃, so there are higher requirements on refractories quality, like checker chamber upper area, combustion chamber where are key areas for stoves campaign life. Therefore, some clients and experts have proposed the goal that campaign life of hot stoves should be twice as much as the life of blast furnace. Obviously, this is a challenge to refractories quality. It has become an important task for the refractory industry to select one kind of refractory with good thermal stability, high resistance to high temperature compression creep, high refractoriness under load and reasonable price to use in the hot stove with high blast temperature. The excellent performance silica brick has the following characteristics. The low creep, high refractories under load and low residual quartz contents, silicon bricks for hot stove of our company has been successfully applied to various types of hot stoves of major steel companies at home and abroad and the quality has been recognized by the clients.

Feature
Superior resistance to acids (including oxidizing)
Resistance to chlorine
Resistance to thermal shock and pressure changes
Low thermal and chemical expansion

Technical Data

Brand Item	CGZ-95	CRG-95		CJG-94
Brand Item	CGZ-95	Dome & Wall brick	Checker	Sole & wall brick	Others
Refractoriness º C ≥	1710
Permanent liner change 1450 º C × 2h %				+0.2 0
Apparent Porosity (%) ≤	22	22	23	22	24
True Density (g/cm3) ≤	2.37	2.35	2.35	2.34	2.35
Cold Crush Strength (MPa) ≥	29.4	35	30	30	25
Thermal Expansion(1000 º C ) %		1.26	1.26	1.28	1.30
Refractoriness under Load 0.2MPa Ta( º C ) ≥	1650			1650	1650
Chemical analysis SiO 2 % ≥	95	95	95	94	94

Photos for Applications

Silicon Brick for Hot Blast Stove/Furnance

Q: Because of the recent relates to this industry, by way of learning to name for all raw materials, I hope knowledgeable friends exhibitions, thank you.: The main raw material is the main body of refractory. Auxiliary raw materials can be divided into binders and additives. The role of bonding agent is to make the refractory body in the production and use process has enough strength. There are commonly used lignin, phenolic resin, asphalt, cement, water glass, phosphoric acid and phosphate, sulfate, some main raw material itself has the effect of binder, such as clay; additive is to improve the production of refractory materials and construction technology, or strengthen the refractory material of some properties, such as stabilizer, water reducing agent, inhibitor, plasticizer, foaming agent, dispersing agent, bulking agent, antioxidant.

Q: The difference between clay refractory bricks and refractory brick in the application.: Brick bearing soft temperature and close to the melting point, high temperature strength, can be in high temperature (above 1400 degrees) under the condition of long-term use,

Q: Semisilica brick interpretation: High temperature volume stability. Volume change is small.

Q: What is the main material of silica brickIt's common, the kind we see so often!: An acid refractory consisting mainly of quartz and square quartz and a small amount of residual quartz and glass.

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?: The share of A12O3 and SiO2 is different

Q: How to judge the quality of brick, clay brick, high alumina brick furnace from the appearance?: Mainly from the impurities to determine how much, generally less impurity single color 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.