Silicon Brick for Hot Blast Stove/Furnance

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Loading Port:
Tianjin
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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 ItemCGZ-95CRG-95CJG-94
Dome & Wall brickCheckerSole & wall brickOthers
Refractoriness º C   ≥1710
Permanent liner change 1450 º C × 2h %+0.2 0
Apparent Porosity (%) ≤                                                2222232224
True Density (g/cm3) ≤2.372.352.352.342.35
Cold Crush Strength (MPa) ≥29.435303025
Thermal Expansion(1000 º C ) %1.261.261.281.30
Refractoriness under Load 0.2MPa  Ta( º C ) ≥165016501650
Chemical analysis SiO 2  % ≥9595959494

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Silicon Brick for Hot Blast Stove/Furnance

 

 

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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:Can not use it two brick
Acidic silica brick refractory material, has good ability in acid slag erosion
Q:The brick is mainly used in the place?
Partitions used in coking and combustion chambers for coke ovens
Q:How much is the highest melting point of silicon?
. True density 2.35g/cm3. With acid resistance, slag erosion performance. Higher high temperature strength. The softening start temperature is 1620~1670 degrees. Long term use at high temperature without deformation. The thermal shock resistance is low (the heat exchange in water is 1~4 times). The natural silica is used as the raw material, and a proper amount of mineralizer is used to promote the transformation of quartz into quartz in the body. Slowly sintered at 1350~1430 DEG C in the reducing atmosphere. The total volume of heating to 1450 DEG about 1.5~2.2% expansion, the residual expansion will make cutting seam sealing, ensure masonry tightness and good structure strength, so that the brick load softening temperature will reach 1750 degrees Celsius above 1620 degrees in the case of the highest melting point.
Q:High temperature refractory material?
Special materials often use AZS brick (i.e. corundum brick), corundum brick, magnesia chrome bricks, 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. Insulation refractories are often used diatomite products, asbestos products, insulation board. Unshaped refractories are often used refractory castable, refractory clay, refractory ramming material, refractory plastic and fettling material, fire resistance, gunning, refractory cast material, fireproof coating, lightweight refractory castable, gun mud.
Q:Semisilica brick interpretation
High temperature volume stability. Volume change is small.
Q:What are the main constituents of refractory bricks?
(a) containing refractory brick brick, refers to more than SiO293%, is the main varieties of acid resistant brick. It is mainly used for coke oven building, also used in furnaces all kinds of glass, ceramic and carbon calciner, refractory brick arches and other load-bearing parts, is also used in high temperature bearing part of hot blast stove, but should not be used in thermal equipment below 600 DEG C and the temperature fluctuation in the.
Q:Such purpose and scope please give me detailed points thank you
Mainly used for coke oven carbonization chamber and the combustion chamber wall, open hearth furnace regenerator and a sediment chamber, soaking furnace, glass furnace, refractory materials and ceramic brick 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:Glass kiln brick for physical and chemical indicators?
Glass kiln with high quality silica brick with silicon oxide content, low melt index, mainly used for glass kiln crown, parapet, wall hanging, small furnace arch superstructure and regenerator.
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.

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