Hot blast stove refractory brick

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Specifications

Fire brick
1.ISO 9001 approved,
2.With high quality and competitive price,
3.Standard and special shape.

Fire-clay refractory brick.
1. N-1
AL2O3 (%)>42
Refractoriness >1750
Refractoriness under load KD>1400
Permanent linear change onreheating
1500*2h
1450*2h
1400*2h:+0.1; -0.4
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>29.4

2. N-2a
AL2O3 (%)>40
Refractoriness >1730
Refractoriness under load KD>1350
Permanent linear change onreheating
1500*2h
1450*2h
1400*2h:+0.1; -0.5
Apparent Porosity(%)<24
Cold crushing strength (Mpa)>24.5

High-alumina refractory brick
1. LZ-75
AL2O3 (%)>75
Refractoriness>1790
Refractoriness under load KD>1520
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>53.9

2. LZ-65
AL2O3 (%)>65
Refractoriness >1790
Refractoriness under load KD>1500
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>49

3.LZ-55
AL2O3 (%)>55
Refractoriness >1770
Refractoriness under load KD>1470
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>44.1

4.LZ-48
AL2O3 (%)>48
Refractoriness >1750
Refractoriness under load KD>1420
Permanent linear change onreheating
1500*2h
1450*2h:+0.1; -0.4
1400*2h
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>39.2

Fire clay brick SK-32

Item

Standard

AI2O3(%)

30

Fe2O3 (%)

3.5

Refractoriness (SK)

32

Refractoriness under load,

0.2MPa, Ta, (°C)

1300

Porosity (%)

22-26

Bulk density (g/cm³)

2.05

Cold crushing strength (MPa)

25

Thermal expansion at 1000°C (%)

0.6

Fire clay brick SK-34

Item

Standard

AI2O3(%)

38

Fe2O3 (%)

2.5

Refractoriness (SK)

34

Refractoriness under load,

0.2MPa, Ta, (°C)

1350

Porosity (%)

19-23

Bulk density (g/cm³)

2.10-2.15

Cold crushing strength (MPa)

25

Thermal expansion at 1000°C (%)

0.6

Fire clay brick SK-36

Item

Standard

AI2O3(%)

50

Fe2O3 (%)

2

Refractoriness (SK)

36

Refractoriness under load,

0.2MPa, Ta, (°C)

1450

Porosity (%)

20-24

Bulk density (g/cm³)

2.30-2.40

Cold crushing strength (MPa)

45

Thermal expansion at 1000°C (%)

0.3


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Q:How to do refractory bricks
There are many varieties of refractory bricks, and the pratice of it is similar to ordinary brick practice, but the requirements of equipment and technology will be much higher
Q:how much is the content of the high alumina of refractory brick?
linear change on reheating is small and Slag resistance is good, matte smelting, good thermal shock resistance used refractory materials should be resistant to high temperature: In front of the furnace, the temperature can reach 1800, copper blowing. The maximum temperature in the smelting furnace area is on the top, pyro-refining and electrorefining, magnesia chrome brick, magnesia chrome castable, magnesia alumina brick. The commonly used refractory materials is direct-bonded magnesia-chrome bricks, which has large volume density. manufacturing technique of copper smelting consists of five parts, Clay brick
Q:How many pieces of porous brick is equal to one ton?
Refractory bricks are generally classified into two types, that is, shapeless refractory materials and shaped refractory materials. Shapeless refractory material: Also known as castable refractory, is hybrid power material composed of a variety of aggregate or a kind of aggregate and one or more kinds of the mixture of adhesive particles, it should be used evenly mixed with one or more kinds of the liquid, which has strong liquidity. Shaped refractory material: The general making of firebrick, there are standard rules for the shape, can also temporarily process according to need of building and cutting. The following are the specifications. fireclay bricks 230*114*65 each block 3.0 - 3.6 kg; special-shaped fireclay brick 230*65/55*114 each block 2.8 - 3.3 kg; the reason for the weight's ranges is that because the quality is different, in general, heavy density, good quality!
Q:Do refractory bricks need to be sent to the lab to test after arriving the site?
Yes, need to test physical and chemical indicators
Q:What kind of material is good to be laid on the kiln car, refractory brick?
It depends on the temperature. General thermal insulation brick is ok, when temperature is high, use mullite, and when temperature is not high, alumina is ok
Q:How to deal with the red kiln in rotary kiln?
Q:What is the life of an old fashioned refractory brick kiln transformed into a flat topped tunnel kiln? what material should be used to transform the old fashioned refractory bricks vault kiln to flat tunnel kiln, and how long is the service life?
High alumina brick and hanging brick are ok.
Q:What materials make of clay insulating fireclay brick?
Clay insulation bricks are general according to the different origins of raw materials, not the same
Q:Characteristics of refractory bricks
The ability to resist rapid changing temperature and not to be destroyed is 6, it refers to the change of the volume expansion and contraction in the same temperature change. the porosity is 3, this parameter is very important in its own properties, anti bending strength, but as a manufacturer, you must strictly control the explicit hole through the material unit area of heat flow rate: The main composition determines the quality and characteristics of the refractory material 2: Unit volume weight, good impact resistance, abrasion resistance show good compactness: Also called high temperature load, it begins to deformation temperature, the volume density, we define such a linear change rate is 0 physical and chemical properties is 1: 5, but the heat conductivity coefficient may be large, load softening temperature, porosity: The ability to withstand shear stress is 8, compressive strength: Did not make specific requirements about thermal shock resistant performance: Resistance to anti penetration erosion under high temperature and not destroyed 7: Don't have to explain it, linear change rate, thermal conductivity, slag resistance: Also known as linear change on reheating or the residual line change, if the expansion and contraction of each time is the same: Under the condition of unit temperature gradient, the service life is 4, chemical composition.
Q:Why is the house made of refractory bricks not warm in winter
Heating equipment can be used

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