Furnace sillimanite brick

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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:Can fly ash brick keep warm?
Sure, I do fire-resistant insulation bricks, we also use fly ash ah!
Q:What are the main components of high alumina bricks?
Sweat is like water mineral alumina bauxite, aluminum ore, magnesite, waves of gibbsite. Anhydrous alumina raw material, such as corundum, alumina, fused corundum. High alumina brick Zhengzhou gold company specializing in the production of various specifications, you can directly ask their technical staff.
Q:Brick price?
There are various series of unshaped refractory gunning, magnesia ramming material, mending material, coating material, dry lining material, composite refining agent, covering agent, tundish and tundish slag wall, ladle drainage sand and electric furnace taphole filler etc..
Q:is it good to use firebricks to preserve the heat of rto furnace? Is there any other good ideas?
Operating noise is very low, having a very strong chemical stability: The thermal conductivity is lower than 0 at normal temperature, it not only reduced the cost of the project of RTO furnace, but keeps the indoor heat dissipation heat better and reduce noise pollution. the temperature of RTO furnace surface is low after using the ceramic fiber lining to keep the heat, thereby reducing the addition of auxiliary fuel : ceramic fiber has a good thermal shock resistance: The dosage form of HLGX-589 and HLGX-312 ceramic fiber material is shown in figure RTO furnace thermal insulation material. C, good thermal shock resistance, without reserving expansion joints, ensure the lining intact, not easy to be affected by the harsh combustion atmosphere inside the RTO furnace, can deal with the temperature changes caused by periodic replacement of RTO furnace inlet. The furnace is new energy-saving furnace developped recent 30years that used for eliminating harmful exhaust gas caused by steel or paint spraying. it has long service life, high chemical stability, no heat preservation precedent for refractory bricks; B, good heat insulation effect.
Q:How to reinforce a porous brick foundation?
Increase depth method: for immediate lower layer is a good soil bearing situation, while the best bearing layer in groundwaterBit line above.
Q:What is acid proof brick
The main component of acid resistant ceramic tile is silica, which forms a large amount of andalusite under high temperature calcination, which is a kind of material with high acid resistance. The acid proof brick structure, low water absorption, so at room temperature are resistant to alkaline medium at any concentration, but not resistant to high temperature molten alkali. Acid resisting brick contains more than 70% silicon dioxide, and is made by sintering. It is used in acid chemical ditch, acid well, acid storage storehouse and acid loaded big impact ground.
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.
Q:How many bricks, mortar and how much wear and tear does one side of the clay brick masonry need?
The loss rate of mortar is 1%, so the total consumption of mortar is 0.212M3*1.01=0.214M3
Q:General used refractory brick T-20 / T-39/ T-206 specifications and dimension
No T-206 model (we produce the clay) T-20 and T-39 are the size of 230*length, 113* width and 65/45 thickness, T-20 is a vertical arch brick and T-39 is horizontal arch brick.
Q:Use of high alumina refractory bricks?
High alumina brick refractory than clay refractory bricks and brick refractory degree are higher, up to 1750~1790 DEG C, which belongs to high-grade refractory materials.

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