$Silica Lime Bricks for Hot Blast Furnace Lightweight Silica Refractory Bricks System 1$
$Silica Lime Bricks for Hot Blast Furnace Lightweight Silica Refractory Bricks System 2$
$Silica Lime Bricks for Hot Blast Furnace Lightweight Silica Refractory Bricks System 3$

$Silica Lime Bricks for Hot Blast Furnace Lightweight Silica Refractory Bricks$

$Silica Lime Bricks for Hot Blast Furnace Lightweight Silica Refractory Bricks System 1$

$Silica Lime Bricks for Hot Blast Furnace Lightweight Silica Refractory Bricks System 2$

$Silica Lime Bricks for Hot Blast Furnace Lightweight Silica Refractory Bricks System 3$

Silica Lime Bricks for Hot Blast Furnace Lightweight Silica Refractory Bricks

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 10 m.t.

Supply Capability:: 1000000 m.t./month

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Quick Details

Place of Origin:	Henan, China (Mainland)	Shape:	Brick	Material:	Other
SiO2 Content (%):	91	MgO Content (%):	0	CaO Content (%):	0
Refractoriness (Degree):	Common (1580°< Refractoriness< 1770°)	CrO Content (%):	0	SiC Content (%):	0
Model Number:	QG1.2	Brand Name:	sunrise	size:	any size

Packaging & Delivery

Packaging Details:	wooden pallet
Delivery Detail:	2 months

Specifications

light weight fused silica refractory for hot blast furnace
1)Good acid erosion resistance.
2) High softening point with temp

light weight fused silica refractory for hot blast furnace

With dense and smooth appearance, uniform corner and edge, pure color and luster and accurate size

1)Good acid erosion resistance.

2) High softening point with temperature.

3) No shrink in burn repeatedly.

Stable Capability, High Quality, Excellent Service, Competitive price is the most important advantage of our products

Item Brand Index	Light weight silica brick
Item Brand Index	QG-1.2
SiO2≥	91
Refractoriness	1670
RUL(0.2 MPa)T1, °C	1560
Apparent Porosity%≤	≥45
Cold Crushing Strength Mpa ≥	3.5
True Density g/cm3 ≤	2.39
Bulk Density g/cm3 ≤	1.20

Our factory product various kinds of refractory products. The products can be made according with the customers' requirement

$Light Weight Silica Refractory Brick for Hot Blast Furnace$

Q:Why is the new trend of the high thermal conductivity of silica brick: The high thermal conductivity of silica brick all inherits the advantages of traditional coke oven silica brick, on the basis of further highlight the characteristics of high thermal conductivity.

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:Semisilica brick, clay brick, high alumina brick and what is the difference?: This is a kind of refractory material is divided into three types: semisilica brick (A12O315 ~ 30%), clay brick (A12O330 ~ 48%), high aluminum brick (A12O3>48%).

Q:How to improve the thermal conductivity of the coke silicabrick rate?: The content of SiO2 is 98.23% crystalline silica as raw material, with sulfite pulp liquid as binder, millscale and lime as mineralizer, by Jin Hongshi (TiO2) as additive, can improve the rate of thermal conductivity of silica brick for coke oven. When the rutile content is 1.5%, the coefficient of thermal conductivity of silica brick for coke oven is 2.66W/ (m.k).

Q:Such purpose and scope please give me detailed points thank you because I am learning stage: 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. 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. The properties and process of silica crystal with SiO2 transformation is closely related, therefore, the proportion of it is one of the important quality indexes of silica brick. General requirements below 2.38, high quality silica brick should be less than 2.35. The true density is small, reflecting a large number of scale quartz and square quartz in the brick, the residual quartz is small, so the residual line expansion is small, and the strength is decreased in useThe raw materials for the manufacture of silica brick. The higher the SiO2 content of silica raw material, the higher the refractoriness. The most harmful impurities are Al2O3, K2O, Na2O and so on. They seriously reduce the refractoriness of refractory products. Brick with SiO2 content of not less than 96% of silica as raw materials, adding mineralizer (e.g. millscale, lime) and binder (such as molasses, sulfite pulp waste liquid), after mixing, molding, drying, sintering and other processes in the system.

Q:Why is the three oxidation of two silicon is very harmful impurities in silica brick: Heating calcination is the best way to extend this sort of impurity removal. Remove impurities

Q:The high thermal conductivity of silica brick and traditional brick what is the difference?: The scale quartz is a spear shaped double crystal structure, very compact and favorable to the increase of thermal conductivity. The high thermal conductivity of silica brick in improving thermal conductivity and other performance indicators and traditional coke silicabrick agreement.That is to say, the high thermal conductivity of silica brick all inherited the traditional advantages of coke oven silica brick, on the basis of further highlight the characteristics of high thermal conductivity

Q:The formula in the refractory brick, and firing curve, who knows?: Iron scale powder 0.45-0.55%, cement 0.9-1.1%, lime milk 6.5-7.5%, pulp 1.95-2.2%, the silica powder, perlite will be added to the wet mill in proportion, and then add iron scale powder, cement, dry roller 1-2 minutes later

Q:Semisilica brick interpretation: Good thermal shock resistance. In use, more high viscosity glass phase can be formed, and the masonry brick joint and the working surface are dense and the masonry is complete, which is beneficial to improve the impermeability of the masonry and reduce the erosion effect of the slag on the masonry.

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%.

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