• Fireclay Brick for Hot Air Stove System 1
  • Fireclay Brick for Hot Air Stove System 2
  • Fireclay Brick for Hot Air Stove System 3
Fireclay Brick for Hot Air Stove

Fireclay Brick for Hot Air Stove

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Product features: use clay brick of hot air stove USES yangquan high-quality clay clinker as main raw materials, through high pressure molding, high temperature sintering, the main mineral composition of mullite phase, the product has excellent high temperature properties and resistance to chemical attack function, widely used in various parts of the middle and small blast furnace lining.
       热风炉用粘土砖

项目
Item

RN-42

RN-40

RN-36

Al2O3, %              不小于
min

42

40

36

Fe2O3,%               不大于
max

-

-

-

耐火度,℃            不低于
Refractoriness        min

1760

1740

1700

荷重软化开始温度,℃  不低于
RUL                   min

1400

1350

1300

重烧线变化,%         1450℃x2h
P.L.C.                1350℃x2h  

0—-0.4

0—-0.3

0—-0.5

显气孔率,%           不大于
A.P.                  max

24

24

26

常温耐压强度,Mpa     不小于
CCS                   min

29.4

24.5

19.6


Q:Blend 12% fireclay and 88% refractory cement. Moderate water and mud are used to pile up firebricks?
If the temprature is below 1200 degrees, the clay castable refractory can be used at what temprature, or use lightweight clay thermal insulation bricks. Thus, the furnace body is not easy to crack. The service life will be long.
Q:what is the ratio of refractory mortar and refractory bricks, such as how much refractory mortar is needed for a ton of refractory bricks?
Go to the refractory factory to buy some refractory clay that is of the same material as refractory bricks, generally boiler uses clay refractory mortar.
Q:1200 degrees inside the furnace, lay a layer of refractory brick, what is the temperature outside?
except refractory brick, refractories include refractory concrete (refractory cement+aggregate), fire-resistant insulating layer (refractory cement+vermiculite powder or refractory cement + diatomaceous earth) and so on.
Q:How to distinguish between sintered clay brick and sintered coal gangue brick
Two kinds of brick color is not the same, the red clay brick, the brick surface slightly dark, in addition there are also differences between the surface of brick also has the difference between the former than the latter.
Q:Clay brick, red brick, always fried brick how to do?
Small white stones, such as Magnesium Oxide and limestone (calcium carbonate). Take "containing limestone" (calcium carbonate) stones, after firing, into lime (calcium oxide), put a long time, absorb the moisture in the air, will cause the lime (calcium oxide) reduction, volume expansion, resulting in fried brick.
Q:Is the thickness of the kiln lining and the refractory brick the same concept?
This is certainly not the same. The thickness of the refractory brick can be arbitrary, the thickness of the kiln lining is generally designed according to requirement
Q:Can thick steel plate be used instead of the furnace inside the refractory brick?
It depends on the temperature. The steel plate is a kind of heat conduction material which hasn't heat insulation, which should be based on the working environment.
Q:How to count the number of loading refractory bricks?
Use one meter by one meter wooden raft-towing: use one meter raft-towing to count: Known your brick is T-3 standard bricks, each four layers lies down 15 and sidewards is 4 =64; according to 3.4kg, 47 clay bricks can hold 10 to 12 layers. According to the upper limit, each raft-towing can hold 2.3 tons
Q:application of phosphate refractory bricks
The 4 properties of phosphate refractory bricks: (1) high strength wear resistance (2) and chemical erosion (its alkali resistant ability is better than that of clay brick and high alumina brick) (3) and good thermal shock resistance (4) high load softening temperature in rotary kiln, kilneye, kiln Zone door cover, cooling machine and lining refractory brick falling parts easy to loose
Q:does all the refractory refer to refractory bricks when making steel?
Not only are refractory bricks, and shapeless refractory material; blowing agents, drainage sand, and oxygen are all metallurgical auxiliary materials.

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