Silica Brick for Hot Blast Stove - Refactory Quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 30000 m.t./month
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General Information
CMAX silica brick is a kind of acid refractory product which is mainly made of tridymite and cristobalite, and a small amount of quartz and vitreous. CMAX Silica bricks are made from high quality quartz tail sand, lime and mineralizing agent through the process of crashing, screening, mixing, pressing, drying and sintering.
Application
Coke oven
Hot blast stoves
Glass furnace
Features
High refractoriness under load
High mechanical strength
Excellent thermal shock resistance
Corrosion resistance.
Low thermal and chemical expansion
Technical Data
ITEM | For Hot-Blast Stoves | For Glass Furnace | ||||||
S-94 | S-95 | S-95B | G-94 | G-95A | G-95B | G-96A | G-96B | |
SiO2, % | ≥ 94 | ≥ 95 | ≥ 95 | ≥ 94 | ≥ 95 | ≥ 95 | ≥ 96 | ≥ 96 |
Fe2O3, % | ≤ 1.5 | ≤ 0.5 | ≤ 1 | ≤ 1.5 | ≤ 1.2 | ≤ 1.2 | ≤ 0.8 | ≤ 1 |
Residual Quartz, % | ≤ 1 | ≤ 1 | ≤ 1 | ≤ 1 | ||||
Apparent Porosity | ≤ 23 | ≤ 23(24) | ≤ 21(23) | ≤ 24 | ≤ 22(24) | ≤ 22(24) | ≤ 22(24) | ≤ 22(24) |
True Density, g/cm 3 | ≤ 2.35 | ≤ 2.34 | ≤ 2.33 | ≤ 2.35 | ≤ 2.35 | ≤ 2.34 | ≤ 2.34 | |
Cold Crushing Strength, Mpa | ≥ 29.4 | ≥ 30(27) | ≥ 30(20) | ≥ 30 | ≥ 30(35) | ≥ 30(35) | ≥ 30(35) | ≥ 30(35) |
Refractoriness Under Load, º C | ≥ 1650 | ≥ 1600 | ≥ 1630 | ≥ 1660 | ≥ 1650 | ≥ 1680 | ≥ 1670 | |
Permanent Linear Change, % | 1500º CX4h, ± 0.2 | 1450º CX2h, ± 0.5 | ||||||
- 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.
- Acidic materialMainly siliceous materials, such as quartz, tridymite and cristobalite, chalcedony, flint, opal, white quartzite, silica sand, diatomaceous earth, silicon oxide contained in these siliceous materials (SiO2) at least 90%, pure raw materials are silicon oxide as high as 99% or more. Siliceous materials at high temperature is the acidic nature of chemical dynamics, when the presence of metal oxide, or when in contact with the chemical reaction, and combined with a fusible silicate. Therefore, if there is a small amount of metal oxide in siliceous material, it will seriously affect its thermal resistance.
- Q: The hot blast stove when the temperature did not rise against the brick interface decreased
- How to keep the brick masonry temperature not lower than 600 DEG C, while the exhaust temperature is not higher than 400 DEG C.
- Q: Why will expand when heated brick
- In the process of SiO2 drying, the four crystalline transformation points of 117, 163, 180~270 and 573 DEG C are found, among which the volume expansion caused by the 180~270 is the largest.
- 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 brick is mainly used in the place?
- Partitions used in coking and combustion chambers for coke ovens
- Q: Can iron oxide be used as refractory material?
- Is widely used in this area. Mentioned refractory material of high school textbooks generally refers to three two aluminum oxide (alumina), alumina is also used as a refractory material, refractory crucible, porcelain, artificial gemstones.
- Q: The high thermal conductivity of silica brick and traditional brick what is the difference?
- Tridymite content high thermal conductivity silica brick is 70%, tridymite content of traditional brick is 60%, tridymite content high thermal conductivity of silica brick than tridymite high content of 10% traditional brick,
- Q: What are the main constituents of refractory bricks?
- Clay brick and clay brick are mainly composed of mullite (25% ~ 50%), glass phase (25% ~ 60%) and square quartz and quartz (up to 30%). Usually with hard clay as raw material, pre calcined mature material, and then with soft clay, semi dry or plastic molding, the temperature at 1300~1400 C fired clay brick products. Can also be added a small amount of water, glass, cement and other binders to make non burning products and amorphous materials. It is a refractory brick commonly used in blast furnaces, hot blast furnaces, heating furnaces, power boilers, lime kilns, rotary kilns, ceramics and refractory bricks.
- Q: High temperature refractory material?
- Many kinds of refractory materials, usually by refractoriness level is divided into ordinary refractory materials (1580 to 1770 DEG C), advanced refractories (1770 to 2000 DEG C) and special refractories (more than 2000 DEG C); according to the chemical characteristics into acid refractory material, refractory materials and basic refractory materials. In addition, the refractory material used for special occasions.Now the definition of refractory materials, has not only depends on whether the refractoriness at 1580 DEG. Refers to the current refractories used in metallurgy, petrochemical, cement, ceramics and other production equipment with inorganic non-metallic materials.
- Q: Physical solid waste disposal
- Too much addition will reduce the refractory and mechanical strength, increase porosity, so the amount of waste brick should not be too much.
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Silica Brick for Hot Blast Stove - Refactory Quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 15 m.t.
- Supply Capability:
- 30000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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