Hot blast stove with low creep brick of andalusite

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Product Description:

热风炉用低蠕变红柱石砖

项目
Item

LHZ—65

LHZ—60

LHZ—55

LHZ—50

Al2O3, %

65

60

55

50

显气孔率,%
A.P.

20

20

20

20

体积密度,g/cm3
B.D

2.60

2.50

2.50

2.40

常温耐压强度,MPA
CCS

50

50

50

50

蠕变率,%(20—50h)
Creeping Rate

0.2

0.2

0.2

0.2

重烧线变化,%(1400℃x4h)
P.L.C.

0—0.3

0—0.3

±0.2

±0.2

荷重软化开始温度,℃
RUL

1650

1600

1600

1580


Specification:


Product characteristics; Hot blast stove with low creep brick of andalusite using selected andalusite, corundum, mullite as main raw materials, through high pressure molding, high temperature sintering, andalusite in 1350 ℃ formation of mullite products surface with strong "welding" effect, so that the products good thermal shock resistance, high refractoriness under load, high temperature creep resistant performance is good, good thermal shock resistance, is a Dutch type technical characteristics of hot blast stove with refractory.



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Q:does the electric kiln burner need to be sealed?
seal when open the kiln, and observe the temperature, when the temperature reaches a point, you can move the firebrick away, and continue observing the temperature to decide whether to seal it or not, but do not seal it completely, repeat the procudure until reach the sinter point or skill requirement.
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 is more durable than castable refractory.
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:Is refractory brick afraid of rain?
High alumina clay is not afraid of rain, but covering is better, magnesium carbon refractory brick had better not be rained.
Q:Whether the fire bricks are needed to be poured before construction?
It should be properly watered, according to its water absorption rate: Need to soak and dry in the shade. There is no need to do like the ordinary red brick
Q:How to make the adhesion between refractory brick and the inner wall of the boiler more firm?
The hook structure, or masonry concrete beams.
Q:the amount of per square refractory brick of Various specifications and thickness of the refractory brick wall
9 grams-47. 7 grams- 47 calculate by your own according to the actual volume; cubic centimeter; 2.2 grams Clay brick 2: 1; 3, high alumina brick 3; cubic centimeter; standard density, cubic centimeter: 230mm * 114mm * 65mm, diatomite insulation brick 0, you can calculate the reference value
Q:What kind of refractory brick is suitable for clinker production line of 2,500 tons?
are you saying the cement plant rotary kiln?
Q:what is consequence of high load and soft low of high alumina refractory brick ?
softening, if not up to the design requirements, may cause vicious incident like the collapse of the stove in use. the full name is softening temperature under a fixed load, as the name suggests, it is the softening temperature after adding the load.
Q:What is the use of refractory bricks
Silica brick, common brick, special type brick. For example, fireclay bricks, high alumina brick, fused brick (fused cast brick), unfired brick, refractory materials at high temperature and can withstand a variety of physical and chemical changes and mechanical action with certain shape and size. According to the preparation process, the method can be divided into burnt brick. Can be used as construction furnaces and various thermal equipment of high temperature building materials and construction materials; according to the shape and size, it can be divided into standard bricks, refractory heat insulating bricks, magnesia brick etc.

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