Insulating Fire Brick for various kilns

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
20 m.t.
Supply Capability:
20000 m.t./month

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Product Description:

Insulating Fire Brick Technical index

Product No.

IFB70

IFB60

IFB50

IFB40

Al2O3

68%-72%

58%-62%

48%-52%

38%-40%

Refractoriness (°C )

≥1790

≥1790

≥1790

≥1790

Bulk density (g/cm3)

2.50-2.60

2.35-2.45

2.20-2.30

2.10-2.20

Apparent porosity (%)

22

19-22

17-20

17-20

Cold Crushing strength (kg)

480-510

450-480

430-450

390-430

Application

Insulating Fire Brick are used for the lining of converter, alternating current arc furnace, direct Current arc furnace and the ladle slag line, etc.

 

Equipment 

1 unit of Ceramic Abrasive (SG Abrasive) pilot production line

2 units of Compact grain Abrasive pilot production lines

1 unit of high-end coated abrasives (abrasive cloth) production line

2 units of Boron Carbide production lines

3 large flexible crushing and sieving lines for grit production lines

2 units of 2000KVA furnaces for Boron Carbide fusion

6 units of 5000KVA-10000KVA dumping type electric arc furnaces for Brown Fused Alumina fusion

 

Company Advantage

(1)Long Insulating Fire Brick manufacture history: 25 years manufacturer 

(2)Advanced equipment

(3)Diversification of production standards: ISO ANSI FEPA JIS ASTM

(4)Flexible payment: T/T L/C D/P D/A

(5)Professional marketing team and after-sale service

(6)Free sample

 

 

 

Q1

 

What’s the transport method?

 

A1

FCL delivery goods with wooden pallet or wooden case by sea; If LCL delivery, must with wooden case; Sometimes need open top, flat rack or bulk cargo.

 

Q2

 

What’s the required payment term?

 

A2

Generally 30% TT as the prepayment, 70% TT before delivery. If need, 100% Irrevocable Letter of Credit or negotiation.

 

Q3

 

Which country are our products exported to?

 

A3

Apart from entire Chinese market, the US, Russia, Japan, Korea, Australia and some Southeast Asian Nations.

 

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Q:what should press on the heat preserving cotton above the suspended ceiling refractory brick ?
you can also put Z shaped steel on the purline, put heat preserving cotton on the roof boarding, it is easy to oprate.
Q:How much refractory material is required for 1 million tons of coke oven
This depends on the number of specific cubic, different factory designs different boiler, we need volume to caculate.
Q:Where the refractory bricks rider bricks that are used for building arch and vault should be put?
Arch and vault shall be built simultaneously from both sides of the arch of the foot to the center of symmetry, when masonry, inverting concentric reducer of arch brick is prohibited; the lock should be driven into the brick arch from the side, if the last rider brick can't be driven from the side, you can process the first 1-2 brick to make the size of the lock and the lock buckle equal, and then drive suitable rider brick from top, and use steel plate to jam-pack the side; dismantling arch tire must be performed after all rider bricks are driven and lock brick arch foot ditch masonry is completed and the final tightening nut for skeleton retractor rear.
Q:Blend 12% fireclay and 88% refractory cement. Moderate water and mud are used to pile up firebricks?
Refractory bricks can irectly be liner. Lightweight mullite brick can be used for relatively longer time. If there is no mullite brick, use mud said above for some time, then continue to use by patching up.
Q:What material does tile tunnel kiln use to replace the refractory brick to have better insulation effect and save the maintenance and prolong the service life?
Yes, but the cost is high, refractory material should be the most affordable at present.
Q:Can lime rotary kiln refractory brick kiln be hung with klin coating?
Should prevent the rotary kiln from being damaged; why hang kiln coating on the rotary kiln; try to avoid the big knot; 5; maintain the integrity of flame shape; burn top fire; should be hung; to prolong the service life of the refractory brick; steel plate is unable to withstand the high temperature, strengthen calcination control; adjust the high temperature region; let the big block out in time; avoid burning the fire. . Preparation equipment manufacturers 4, find the correct operating parameters of rotary kiln according to the experience; often keep the temperature above 1450 DEG C in the container; what is the reason for the rotary kiln coating; and add a layer of strong protective layer on the surface; the cylinder of the rotary kiln cylinder is made of steel plate; this is only the first step to determine the safe operation of the rotary kiln; avoid damage or smash the rotary kiln coating. 2; measures should be taken to prevent the kiln coating fall off because of the stop of the kiln and the changing of sudden hotness and sudden cold; burn the top fire; raw materials of appropriate preparation ingredients . We need to know the the rotary kiln, make up in time. The fire resistance and thickness of refractory bricks are limited. 6; in the inside of the building with a layer of refractory brick. 8. Observe and adjust frequently; and can reduce the heat loss outward; control the fire; we take 8 steps to perfectly protect the rotary kiln: how to protect the kiln skin that is hung well; improve coal mouth structure; important operation method of long-term effective rate of safety energy-saving ball mill the work will be interrupted; deterioration, strengthen equipment maintenance of retary kiln, after hanging the rotary kiln skin; ensure clinker grain is fine and uniform; improve the thermal efficiency for the benefit of kiln skin sticking, must treat in time ;
Q:What is the difference between the refractory bricks, hand-made bricks and the machine pressure bricks?
The density of hand-made is not enough, it's light, while the density of machine pressure is high, it's heavy, each has their own benefits
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:What's the reason of cracks in refractory bricks?
The relative density is high, and high temperature heat treatment and increase the strength of qualitative brick, for 10 days, then only the shorter time for heating and drying and dehydrating, you can smash a brick if it's a long time! There will be a stress loose phenomenon making bricks now, the internal density of these crack bricks are not the same, in addition to the effective drying, dehydrating and heating treatment, the time distance is small, basic bricks and finished bricks adopt line production, when drying, the water is also evaporated at the same time, the central density should be high ! The reason is very simple, the greater extrusion force the brick bears in the molding, the closer to the edge, the smaller density is, the better to keep forming, the shorter residence time, the higher the rate of finished product is, which belongs to the natural drying, this phenomenon is more obvious
Q:How many degrees of refractory brick if its surface turns red, how to test the temperature of refractory brick after it is burnt to red.
But it depends on materials; for example, if clay brick is pink, it calls underburnt temperature is 700 degrees -900 degrees, paste red is called overdo temperature 1350 degrees -1390 degree, if the color turns heavier, it will be deformation. there are many reasons for refractory bricks sintering

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