High Alumina Refractory Castable For Blast Furnace

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Product Description:

Specifications

Refractory Castable
1.AL2O3:26-92%
convenient for construction,
good plasticity,
low expansion

High Alumina Refractory Castable for blast furnace

Refractory castable,High alumina refractory castable,Alumina refractory castable

introduction :

Refractory castable is one of the unshaped refractory materials.It is made of refractory aggregate . refractory powder . binders and other additives. It is loose, No fixed shape,Has high liquidity, Casting and vibration molding,Can use directly or use after add appropriate water or other liquid. It is one of the new type refractory material of don't need calcination. In general the use of the site casting, vibration or tamping pouring molding method, a preform can also be made  pre-formed components.

Features:

1. High refractoriness, High refractoriness under load.
2. High density, low porosity.
3. Good slag resistance and corrosion resistance.
4. High strength and wear resistance.

5. Good resistance to flake performance.

6. Good thermal shock stability.

7. Scouring resistance

Main Physical and Chemical Characteristics

item

specification

HT-TC1

HT-TC2

HT-ZC1

Al2O3 ≥

75

70

60

SiC%≥

10.5

9.5

30

volume density g/cm

110°C×24h≥

2.95

2.8

2.65

volume density g/cm

1450°C×24h≥

2.9

2.75

2.6

Resistance strength MPa

110°C×24h≥

30

28

18

1450°C×24h≥

45

43

30

Line rate change %1450°C×24h≥

+0.5

+0.8

+0.5

refractoriness≥1790°C

Application Fields

Industry Served

Application Parts

Cement industry

1.preheater (walls /roofs/chutes/cone parts etc.)

2.calciner

3.smoke chamber

4.riser duct

5.rotary kiln(working lining/insulation lining/inlet  zone/outlet zone etc.)

6.kiln hood

7.tertiary air duct

8.grate cooler(working lining/insulation lining/parapet etc.)

9.burner lance/rotary kiln burner

Metallurgy

Furnace linning

Generation Plant

Boiler

Steel Industry

Steel ladle/tundish

Environmental protection industry

Waste Incinerator etc.



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Q:What kinds of refractory will be used in kiln of sintering ceramics?
If it is ordinary ceramic, you can use ordinary clay bricks and high alumina brick, adding calcium silicate board, the insulating brick and cotton fiber.
Q:What are the characteristics of clay refractory materials?
Refractory clay refers to the refractory clay and bauxite, whose refractoriness is over 1580℃, which can be used as refractory materials. Apart from high refractoriness, they can maintain stability of volume under high temperature conditions and has resistance to slag, the sudden cold and hot, and mechanical strength, so after calcination, it can be abnormal firm.
Q:What is the difference between wear-resistant material and refractory material?
Focus is different. Wear-resistant material may or may not be refractory. Such as, aluminum oxide ceramics is both refractory and wear-resistant, and many organic wear-resisting materials are wear-resistant but not fire-resistant. First, refractory material should be refractory. It should be wear-resistant in special cases. High-temperature fluidized bed, trough, etc. need refractory material with high strength and good wear resistance.
Q:Does the aluminum silicate fiber can be used outdoors? If not, what other refractories can be used outdoors?
Q:Who knows the texture of fire-proof wooden door material?
The so-called fire doors are only posted a layer of fireproof material. Door selection still depends on the timber inside. The simplest way is to see the weight value, fireproof material layer, and they are generally paint-free doors. with fireproofing function..
Q:Why the corundum can be used as refractory
Because the main component of corundum is aluminum oxide!
Q:How to divide the fire rating standards of insulation materials?
The fire rating classification standards of insulation materials, 1. Insulation materials with A-level combustion performance: inorganic fiber spraying, rock wool, glass wool, foam glass, ceramic foam, foam cement, close-celled perlite, etc. 2. Insulation materials with B1-level combustion performance: specially-treated extruded polystyrene boards(XPS)/ specially-treated Polyurethane(PU), Phenolics, Polystyrene rubber powder particles,etc. 3. Insulation materials with B2-level combustion performance: Expanded polystyrene sheets(EPS), Extruded polystyrene board(XPS), Polyurethane(PU), Polyethylene(PE), etc.
Q:The effect of a high content of water in liquid resin exerted on refractory material?
For one thing, Substandard whiteness, transportation, low quality and the storage of refractory material may account for this. For another, a high content of moisture reduced the performance of refractory material. A high content of moisture is equal to buy water with same money in terms of trade settlement. Based on this, we can’t consider the super-standard water content from a single aspect, because the water content in refractory material is definitely super-standard, and another problem is particle size. Many people hold the idea that excessive amount of water content may revive its original performance, but it tends to have influenced the quality of refractory material.
Q:What are the raw materials of refractory?
Of course, different types have different raw materials: Magnesite (the electric smelting: alkaline refractory, magnesia-carbon bricks, alkaline, high-purity) + crystalline flake graphite + phenolic resin + additive (silicon powder, aluminite powder, silicon carbide powder, or high-temperature asphalt,etc.) , acidic refractory: The neutral is not easy to answer. such as. You can check out the classification, such as
Q:For refractory, what is critical particle size? Thank you.
Critical granularity means the maximum size of particles in refractory.

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