Fireclay Brick RN40 hot sale

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General Information of Fireclay brick

Our corporation producesa comprehensive range of Fireclay bricks, with 30% to 55% alumina content, allof these bricks exhibit excellent performance.

Our Fireclaybricks are the final result of blending excellent fused alumina and silicon asthe main raw materials with cutting-edge technology, adding superfine powder,after mixing, drying, forming, in the high temperature shuttle kiln. We ensureyou that the Fireclay Bricks made by us possess high quality standard and havegone through all the complicated quality control parameters. Their durabilityand strength adds life to the structure and they have the capacity of bearinghigh temperature.

Feature of Fireclay Brick

Resistant tothermal shock, abrasion, chemical attack

High ability foranti-abrasion during work

Low shrinkagedegree under high temperature so as to maintaining integrity of the furnacelining

Low apparentporosity, and low Fe2O3 content to reduce the carbondeposit in the blowhole and avoid the bricks broken in case of expansion

Applications of Fireclay Brick

Fireclay brick is mainlyused in the part of throat, stack, hearth, bottom for blast furnace and thestack for a big blast furnace.

1. Carbon bakedfurnaces in the alumina industry

2. Preheat zonesand cyclones of rotary cement kilns

3. Insulation forglass tanks

4. Coke ovens

5. Blast furnaces

6. Reheatingfurnaces

7. Suspended roofs

8. Lime kilns

9. Chimney

 

         Technical  Data of Fireclay Brick RN40

Physical Properties:

Refractoriness

1730

Permanent Linear Change(1350℃×2h)%

%

0~-0.3

Apparent Porosity, %

%

≤24

Cold Crushing Strength

Mpa

≥28

Refractoriness Under Load (T0.6)

1430

Thermal Expansion at 1000℃,  

%

0.6

Density

g/cm3

≥2.15

Chemical Analysis:

 

 

Al2O3  

%

≥40

Fe2O3

%

≤2.0

Note:
 Technical Data are typical average results from test pieces. The technical  data is offered solely for your consideration. And we reserve the right to  modify the technical data without any prior notice. Users of our products  should make their own tests to determine the suitability of each product for  their particular purposes.


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Q:Does circulating fluidized bed boiler's furnace wall use refractory to have thermal insulation?
Heat insulation cotton is laid behind refractory brick.
Q:What are the advantages and disadvantages of clay bricks?
Disadvantages of clay bricks1., since the majorCompared with other masonry materials, the weight of the clay brick is relatively large, so the structure needs to bear heavy deadweight, and the cost of the building increases. 2., poor sound insulation effectSound travels to the clay brick, because of its low porosity, without isolation of sound, sound decibel little drop, while other building materials such as now used more concrete block filling the void ratio is large, sound insulation effect is obvious.3, environmental destructionBecause clay bricks are mainly sintered by excavation soil, soil erosion and damage to vegetation have resulted in soil erosion and serious damage to the environment. Therefore, the country is gradually stopping the project to use clay bricks.
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: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:What is the main use of refractory brick?
Refractory bricks are mostly used as furnace lining amd air heating furnace in high temperature industry Such as the iron and steel industry blast furnace, colored reverberatory furnace, converter
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
Q:Scheme of cement kiln replacing 40 meter refractory brick kiln
If only replace refractory bricks, it just needs three days under the condition of 200 degrees. It will be simpler if there is only free water in the refractory brick (no pouring material).
Q:Do refractory bricks insulate heat?
Refractory bricks have a certain ability of heat insulation, but its thermal insulation is far less than that of glass fiber and wool.
Q:The foundation is made of Mu10, which is new clay brick and M7.5 cement mortar. What does it mean?
Clearly pointed out that bricks are MU10's new clay bricks, cement mortar gradation is M7.5, according to this ratio to configure the construction
Q:The renewal of refractory brick internal the lime kiln belongs to overhaul. In the absence of production, are the replacement of valve and sporadic projects also considered overhauls? Or routine maintenance!
The replacement of refractory brick for lime kiln is definitely a major overhaul, and the replacement of the valve and sporadic items can only be regarded as routine maintenance.

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