Glass Furnace Application Refractory Silica Brick

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Specifications

1.high temp Refractoriness Under Load
2.good stability under high temp
3.low pollution
4.Refractory Silica Brick

Silica Bricks for Glass Furnace

,there are series silica bricks for glass furnace, BG-95, BG-96A, BG-96B. high purity silica for brick mading, with science material proporation and technic of products. different calcined machine, automation, short cycle of production.


Item

BG-94

BG-95

BG-96A

BG-96B

Chemical composition

SiO2

94

95

96

96

Fe2O3

1.5

1.5

0.8

0.7

Al2O3+TiO2+R2O

1.0

0.5

0.7

Refractoriness °C

1710

1710

1710

1710

Apparent Porosity%

22

21

22

22

Bulk Density g/cm3

1.8

1.8

1.8

1.8

True Density,g/cm3

2.38

2.38

2.34

2.34

Cold Crushing Strength Mpa

24.5

29.4

35

35

0.2Mpa Refractoriness Under Load T0.6 °C

1630

1650

1680

1680

Permanent Linear Change On Reheating(%)1500°CX2h

0~+0.3

0~+0.3

0~+0.3

0~+0.3

20-1000°CThermal Expansich10-6/°C

1.25

1.25

1.25

1.25

Thermal Conductivity (W/MK) 1000°C

1.74

1.74

1.44

1.44



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Q:Brick
Acidic silica brick refractory material, has good acid resistance and slag erosion, softening temperature is as high as 1640 to 1670 DEG C, in the long-term use volume is relatively stable under high temperature.
Q:What are the materials for refractory materials? What are their names?
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: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:The production of brick, the ingredients of why join the waste brick
Preparation of silica brick pug, a certain amount of waste silica brick used to add ingredients, for the purpose of expansion and stress reduction products when firing, reduce cracks, improve the rate of finished products.
Q:Why in the production of the brick to detect the volume density
Density is the property of material, different density of materials, density of the same kind of material is not up to standard, affecting performance.
Q:The specific content is what gb/t2608-2012 brick
Quality assessment procedures, packaging, marking, transport, storage, and quality certificates. Suitable for siliceous refractory bricks.
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: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: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: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.

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