Silica Brick for Hot-Blast Stoves S-95B
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 14 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
Resistance to thermal shock and pressure changes
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 specific content is what gb/t2608-2012 brick
- The provisions of the brick classification, technical requirements, test methods,
- Q: The introduction of silica brick
- An acid refractory consisting mainly of quartz and square quartz and a small amount of residual quartz and glass.More than 94% silica content. 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. When heating up to 1450 degrees, the total volume of 1.5~2.2% expands, and the residual expansion can close the kerf and ensure the airtight and structural strength of the masonry.
- Q: Semisilica brick interpretation
- High temperature volume stability. Volume change is small.
- Q: Glass kiln brick for physical and chemical indicators?
- Glass kiln with high quality silica brick products according to the standard JC/T615-1996, the single brick is divided into 3 grades: XBG-96, ZBG-96, DBG-96.
- 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: Brick
- The silica mineral phase is mainly composed of tridymite and cristobalite, there is a small amount of quartz and glass. Tridymite and cristobalite and quartz remaining at low temperature due to phase change, volume changes greatly, so the brick thermal stability at low temperature is very poor. In use, under 800 degrees Celsius, slowly heating and cooling, so as not to produce cracks. The use of temperature in blast furnace so should not be below 800 DEG on.
- Q: The chemical composition of silica brick and its physicochemical index?
- The physicochemical index of silica brick:Turn left to |
- 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, but the anti alkali erosion ability, thermal shock stability is the worst, a scrap. The brick is generally used in the coke oven, glass kiln. Other industries basically do not use.
- Q: Physical solid waste disposal
- The amount of addition is related to the shape and weight of the brick. The bricks can be added to 20% weight less than 25kg; bricks above 25kg can be added to 30%; for the specific type of brick can be added 30%. into waste silica brick should pay attention to this problem
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Silica Brick for Hot-Blast Stoves S-95B
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 14 m.t
- Supply Capability:
- 30000 m.t/month
OKorder Service Pledge
OKorder Financial Service
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