Silica brick for coke oven

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The silica bricks for HBS
Silica fire brick for coke oven
High density silica fire brick
Semi-silics fire brick for coke oven

1.Silica brick manufature.
2.High refractoriness under load.
3.High heat conductivity.
4.Good thermal shock resistance.

Tech Data

Silica brick for glass furnace
Item:		GF-96A	GF-96B	GF-95A	GF-95B
SiO 2		≥96	≥96	≥95	≥95
Fe 2 O 3		≤0.8	≤1.0	≤1.2	≤1.2
Apparent porosity %		≤22(24)
Cold Crushing Strength MPa	Brick below20KG	≥35(30)
	Brick ≥20KG	≥30(25)
Refractoriness under load ºC		≥1680	≥1670	≥1660	≥1650
True density g/cm ³		≤2.34	≤2.34	≤2.35	≤2.35

Silica brick for coke oven
Item:	CO-94A	CO-94B
SiO2: %	≥94	≥94
Al 2 O 3 : %	≤ 1.5	≤ 1.5
Fe2O3: %	≤ 1.5	≤ 1.5
Refractoriness under load 0.2Mpa	≥ 1650ºC	≥ 1650ºC
Apparent porosity: %	≤ 22	≤ 24
Bulk density: g/cm ³	≤ 2.34	≤ 2.35
Cold crushing strength: MPa	≥30	≥25
Permanent linear change % (1450ºC ×2h)	0~0.2	0~0.2
Thermal expansion(1000ºC)	≤1.28	≤1.30

Silica brick for hot blast furnace
Item	HBF-95
SiO2	≥ 95
Al2O3	≤ 1.0
Fe2O3	≤1.3
Apparent porosity %	≤22(24)
Cold crushing strength MPa	≥45(35)
Remaining quarts %	≤1.0
Refractoriness under load ºC	≥1650
Creep(0.2Mpa ×1550ºC×50h) %	≤0.8
Thermal expansion coefficient (1000ºC) %	≤1.25
Apparent density g/cm ³	≤2.32

Q: The hot blast stove when the temperature did not rise against the brick interface decreased: Insulation of hot blast stove, key insulation silica brick hot stove, hot blast stove is shutdown or need repairing in blast furnace.

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

Q: The United States of our brick anti-dumping duties?: . According to the relevant legal procedures, the United States International Trade Commission will make a final ruling on the anti dumping industrial injury before January 6, 2014, if an affirmative determination, the U.S. Department of Commerce will be involved in product release tax anti-dumping order.

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: Can not use it two brick: Acidic silica brick refractory material, has good ability in acid slag erosion

Q: Common bond brick?: Manufacturing for silica brick binder hi-li sulfate pulp waste liquid and lime milk. When lime milk is used as a bond, it acts as a plasticizer. To increase the strength of lime brick in the drying process, as mineralizer in the firing, promote the transformation of quartz.

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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