Silica Brick for Hot-Blast Stoves S-97 System 1

Silica Brick for Hot-Blast Stoves S-97

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Loading Port:: Tianjin

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
CMAX Silica bricks are commonly applied in

Coke oven

Hot blast stoves

Glass furnace

Features
High refractoriness under load
High mechanical strength
Excellent thermal shock resistance
Corrosion resistance.

Superior resistance to acids (including oxidizing)
Resistance to chlorine
Resistance to thermal shock and pressure changes
Low thermal and chemical expansion

Technical Data

ITEM	For Hot-Blast Stoves			For Glass Furnace
ITEM	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

$Refractory Silica Brick for Hot-Blast Stoves S-97$

Q: Why will expand when heated brick: After high temperature after the formation of tridymite and cristobalite and quartz and a small amount of residual glass phase, quartz heating to 220-240 DEG C, in a certain degree of thermal expansion, brick maximum expansion occurs in 100~300 DEG C, 300 expansion before the total amount of expansion is about 70%~75%.

Q: What is the effect of the content of silicon nitride in silicon nitride bonded silicon carbide brick on the use of electrobath? Thank you: The main damage of silicon carbide side wall brick is stress damage, not chemical erosion. Chemical damage is formed prior to the formation of the groove, and the damage to the chemical erosion is little after the formation of the groove.

Q: Why is the new trend of the high thermal conductivity of silica brick: The use of high thermal conductivity of silica brick, reducing coke fuel consumption, reduce emissions of pollutants such as NOx, with considerable economic benefits and social benefits, is the future direction of the new technology of using coke oven refractory.

Q: Glass kiln brick for physical and chemical indicators?: Glass kiln with high quality silica brick with silicon oxide content, low melt index, mainly used for glass kiln crown, parapet, wall hanging, small furnace arch superstructure and regenerator.

Q: Which material is good for furnace refractory?: Kiln types of refractories is very extensive, selection of refractory materials according to the type of furnace furnace temperature and use of selected refractory material, refractory material is divided into custom products of refractory bricks and unshaped refractory castable series products. According to chemistry, it is divided into acidic, neutral and alkaline materials.

Q: How to judge the quality of brick, clay brick, high alumina brick furnace from the appearance?: Mainly depends on the color and density of brick. Another black clay brick and brick with iron oxide formation and how much the size of bricks

Q: Why is the three oxidation of two silicon is very harmful impurities in silica brick: Can generate the material needs is the best way to see the impurity problem!! the first consideration is whether can get the material impurities with what method choice after the time! Miscellaneous reactions cannot have new impurity formation! Selected cannot and need material reaction reagent!

Q: How to improve the thermal conductivity of the coke silicabrick rate?: To improve the thermal conductivity of silica brick for coke oven rate method:Manufacture of high density and high thermal conductivity of silica brick, adding additives such as CuO, Cu2O, TiO2, Fe2O3, (FeO), can improve the thermal conductivity of silica brick.

Q: Why is the highest brick coke oven temperature measuring point temperature not exceeding 1450: That is because the brick load softening point the maximum temperature is 1450 degrees.