Furnace sillimanite brick

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SPECIFICATION:

Product features: the blast furnace with sillimanite brick using synthetic mullite, optimization of alumina, high quality flint clay as the main raw material, after high pressure forming, high temperature sintering, the main mineral of mullite. Product has low porosity, load softening point, good creep resistance, chemical corrosion resistance and excellent seismic stability characteristics, mainly for the lower part of blast furnace throat tube, iron estuary, tuyere zone.

Physical properties and chemical composition

Item

GXS-50

GXS-60

MLS-65

Chemical composition

Al2O3

≥50

≥60

≥65

SiO2

≤45

≤38

≤33

Fe2O3

≤1.2

≤1.0

≤1.0

Apparent Porosity%

≤18

≤18

≤17

Bulk Density g/cm3

≥2.4

≥2.5

≥2.55

Cold Crushing Strength Mpa

≥45

≥50

≥60

0.2Mpa Refractoriness Under Load T0.6 °C

≥1550

≥1600

≥1650

Permanent Linear Change On Reheating(%)

1500°C*2h

±0.1

±0.1

±0.1

Thermal Shock Resistances 100°C water cycles

≥20

≥20

≥20

Reversible Thermal Expansion 1000°C

0.55

0.6

0.6

Pyrometric Cone Equivalent S.C. SK

35

36

38

Range of Application

Rider Arches

Superstructure

forehearth

Superstructure

forehearth




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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:How to use the firebrick to build crucible furnace? How to calculate its furnace's width and depth?
1, classify according to the smelting method : Open-hearth furnace steel: Including carbon and low-alloy steel. According to the different lining material, there are acidic and basic open hearth steel two types. Converter steel: Including carbon and low-alloy steel. According to different positions of blowing oxygen, there are bottom blowing, side blowing and BOF steel three types. Electric furnace steel: Mainly alloy steel. According to the different types of electric furnace and electric arc nail fixed Li modified cool boat to raise spending whale steel, induction furnace...
Q:Application of electric high temperature regulating valve
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, there are refractories for special occasions.
Q:What are the differences and uses of non clay bricks, non clay bricks and ordinary red bricks?
Non clay brick clay brick walls can be completed, insulation and so on, often also can have some characteristics, such as light weight, heat insulation, heat absorbing ability better and so on.
Q:How can the refractory brick blast furnace be pulverized and pulverized enough not to be taken away by the wind?
The gas will directly lead the dome combustion, in order to ensure good mixing, complete combustion of gas and air in a short time, the combustion capacity of short flame or flameless combustion burner, commonly used for semi jet short flame burner.
Q:How about clay bricks?
Fired ordinary brick is one of the indispensable building materials in production and life, but its quality is not good or bad in the absence of professional equipment. Now to introduce a little trick:According to the main raw materials for clay brick, shale, coal gangue and fly ash brick. Mainly in our local clay brick. According to the compressive strength of weathering resistance of radioactive material and qualified brick, according to the size deviation, appearance quality, efflorescence and lime burst into superior products, first-class products, qualified three quality grades.
Q:Which is better for tunnel kiln suspended ceiling, refractory brick or ceramic fiber module ?
If there is no strong hot erosion by airflow, then module is certainly better
Q:How to prevent the refractory bricks from burning to crack?
There is just allowed a little moisture contained in adobe.
Q:The furnace refractory bricks are burnt into ash, what material can resist higher temperature than the refractory brick
refractory bricks, common clay brick, clay brick, high alumina brick and corundum brick
Q:what kind of refractory brick is suitable for 1300 degrees converter?
The furnace cap tapping shaft part should use MgO-C brick with high slag resistance and thermal shock resistance, the steel side can be slightly thin, bottom carbon content may be appropriate less.

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