RN-42 Refractory Fireclay Brick for Hot Blast Furnace

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100 kg
Supply Capability:
2000000 kg/month

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Product Description:

High alumina fireclay Brick  


High alumina fireclay Brick for Heating Furnace is a kind of insulation material adopting organic matter as ignition loss substance in order to increase the porosity of refractory, which has such advantages as high porosity, small volume density, good insulation effect, high mechanical intensity, small thermal conductivity and long service life. For various industrial kilns & furnaces, it is a kind of essential refractory for energy saving and temperature preservation.

This series of High Alumina fireclay Brick for Heating Furnace are made of selected high alumina bauxite, kaolin caly, hollow microsphere as the mian material.By shaping at high pressure and sintering at high temperature. 

Fireclay brick is  shaped refractory product.It is made from flint clay clinker and binder , Through high heat sintering. The Al2O3 content range from 28% to 48%.The refractoriness range from 1580°C to 1750°C(SK-30.SK-32.SK-34.SK-35).

 

Product Applications:

High alumina fireclay Brick are ideal for use in the below applications 

Furnaces of metallurgy industry, heat treatment furnace

Furnaces of chemical industry and construction industry.

Furnace of incineration of garbage, recirculating fluidized bed furnace

Standard sizing: 230 x 114 x 65 mm others up to the client

 

Product Advantages:

CNBM has success in its Fireclay brick due to their cost-effectiveness and excellent insulating properties. CNBM also has experience in ceramic fiber blankets application and would like to assist you in product selection, system design, and installation techniques.

 

Main Product Features:

High refractoriness,High-temperature endurable .

Good corrosion resistance.

Good spalling resistance and wear resistance.

Good thermal shock resistance.

High mechanical strength.

High-temperature creep rate is low.

Good volume stability at high temperature.  

Product Specifications:

ITEM

UNF42

UNF46

ZGN42

RN40

TDL45-12

Refractoriness, ℃ 

1730

1750

1750

1730

1760

Bulk Density, g/cm3

2.15

2.25

2.3

2.15

2.37

Apparent Porosity, %

22

20

15

24

12

C.C.S, Mpa

30

35

58

28

68

Refractories Under Load (0.2Mpa)

1400

1420

1450

1430

1500

Reheating Linear Change, %

1400℃x2h              0.1-0.4

1430℃x2h              0-0.1

1450℃x2h              0-0.2

1350℃x2h       0-0.3

1450℃x2h              -0.1+0.05

Al2O3 Content , %

42

46

42

40

45

 

Size :

Common sizes

 

Straight type

Arch type

Wedge type

L×W×H (mm)

230×114×65

230×114×75

230×114×32

220×110×60

220×110×50

220×110×40

220×110×30

L×W×H/h (mm)

230×114×65/55

230×114×65/45

230×114×65/59

220×110×65/50

220×110×75/65

220×110×60/40

L×W×H/h (mm)

230×114×65/55

230×114×65/45

220×110×75/65

220×110×60/40

Other sizes according to customer requirements

 

 

FAQ:

Q1: How about your factory’s annual production capacity?

A1:CMAX annual production is about 310,000Tons.

Q2: How many production lines of your factory?

A2:CMAX has 26 production lines, including eight silicon bricks lines, and each one of mullite brick, high alumina brick, insulating brick and monolithics line.

Q3:How large the scale of your factory?

A3: CMAX covers almost 200,000 Square meters, including plant area of 180,000 square meters.

Q4: What’s your factory’s product scope?

A4:CMAX main products are: refractory for hot blast stove, refractory for coke oven, refractory for glass kiln, refractory for carbon calcining furnace, refractory for acid pickling line, refractory for cement kiln, refractory for blast furnace, refractory for nonferrous metal furnace, and basic refractory raw materials.

 

Product Picture 

 RN-42 Refractory Fireclay Brick for Hot Blast Furnace

Produce Processing 

Crushing

In this stage massive raw materials which have been stored, are ground and classified into proper sizes, making them easier to shape.

Mixing

The prescribed size of ground raw material is weighed and mixed into a designated amount of water and forming agent.

Shaping

The mixture is then poured into a mold to form shapes, and the pressure is high.

Drying 

In this stage water is removed from the shaped bricks. This helps preventing the bricks from deforming or cracking which may result due to the rapid evaporation

Firing 

This is the most crucial process in refractory manufacturing. The modeled bricks are fired at high temperature to complete their thermochemical reaction so that they do not deform.

Inspection 

The bricks' physical and chemical properties are inspected very carefully by rigid quality management procedures.

Packing shipment

We guarantee efficient delivery every time.

Packing

We also supply (Click on following picture if interested):

 RN-42 Refractory Fireclay Brick for Hot Blast Furnace

 

 


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Q:What is the biggest difference between refractory bricks and clay refractory bricks?
Q:What is the raw material for the production of refractory bricks?
Refractory raw material: Hard refractory clinker, magnesia calcia, magnesia, alumina, light burning, light aggregate etc.
Q:What are the factors that determine the weight of the refractory bricks?
(5) Under high temperature, the volume is stable, the inner part of brick will produce unrecoverable volume shrinkage or expansion because of the internal transformation. Therefore, masonry inner will produce stress to make the material break and peel off, and the weight of a ton of bricks is determined by the bulk density and quantity, how much is the weight of refractory bricks, refractory bricks should have the ability to resist the damage, the weight of a piece of brick is determined by the bulk density: Refractory bricks are used under high temperature for a long term: Refractory bricks in the use of the process. Cooltech refractory brick used in various high-temperature equipment: The temperature of some parts of metallurgical furnace and other industrial furnace is uneven due to rapid temperature change during operation. (3) good thermal stability: Refractory bricks should not only have a high fusion temperature, no softening deformation and collapse, causing damage to the masonry. (4) strong resistance to slag: Modern metallurgy and the other industrial furnace heating temperature is generally between l000~1800. Refractory bricks should have the performance that is not easy to melt under high temperature. Therefore. Therefore, it is subject to high temperature conditions of physical and chemical corrosion and mechanical damage, the refractory brick must have the ability to resist high temperature chemical corrosion, the volume of refractory brick is required to be stable under high temperature. (2) High-temperature structural strength, chemical corrosion of metal, but also should have been built in the stove brickwork load or other mechanical vibration, often has the high temperature slag, so the refractory materials performance should meet the following requirements: (1) high refractoriness
Q:What is the refractory brick in silicious model?
Adding appropriate amount of mineralized agent to promote the transformation of quartz in the body into phosphorus quartz. Smaller coefficient of thermal expansion. Also used in high temperature bearing part of hot blast stove and acid open hearth furnace, refractory materials and ceramic kiln, kiln vault and other load-bearing parts, thermal shock resistance variation. High temperature strength. the glass furnace is burnt in 1430 to 1350 degrees Celsius in the reducing atmosphere. use natural silica as raw materials. True density 2. more than 93% of silica content. generally there is no crystal type transformation above 600 degrees celsius. With acid slag erosion and sediment chamber regenerator performance, soaking furnace, open hearth furnace. there is more crystal type transformation below 600 degrees celsius. mainly used in coking chamer of coke oven and partition of firebox. acid refractory material made of high thermal shock resistance, large volume change, square quartz and a small amount of residual quartz and glass box . Long term use at high temperature without deformation
Q:Do refractory bricks resist corrosion and sulfur?
There are anticorrosion and acid proof refractory bricks
Q:What is the advantage for ceramic fiber material compared with refractory brick?
Heat capacity; excellent thermal shock resistance, good chemical stability, bearing sudden cooling and heating, without oven heating and cooling ,high speed, energy saving, is 1/8 of refractory brick, construction is simple. ceramic fiber materials and refractory brick belong to refractory insulation materials; low thermal conductivity: Low bulk density, ceramic fiber material is a new type of lightweight thermal insulation material, is one of the 10 points of lightweight refractory brick,
Q:What are the physical and chemical properties of refractory bricks
The thermal shock stability, linear change on reheating, softening temperature under a fixed load, compressive strength under normal strength refractoriness
Q:Should refractory cement hang inner core when use carbon steel pipe make water heating hearth by self?
The main purpose of adding refractory cement or refractory brick is to avoid the sulfur in coal in the combustion process of corroding metal, especially under the conditions of high water content and low temperature of flue gas. If use natural gas after desulfurization, without considering the life circumstances, can not be adopted, but the carbon steel pipe is unsuitable for what you said, safety first! Earnestly!
Q:The advantages of using alkalinty refractory brick?
Magnesia chrome and other spinel refractories alkalinity refractories; (2) the alkalescent chrome magnesite refractories, alkaline solvent resistance is strong, usually refers to the magnesia refractory material, dolomite brick and calcareous refractory materials, dolomite refractory materials and lime refractory materials, acid flux or acid refractory chemical reaction. Mainly used in alkaline steel furnace and non-ferrous smelting furnace. Alkaline refractory material at high temperature for alkaline slag. Mainly as the following categories, but the acid slag, forsterite refractories and magnalium: (1)strongly alkaline magnesia brick, magnesia carbon brick and cement kiln
Q:What is the use of refractory bricks
Refractory bricks are mostly used as furnace lining in high temperature industry. Such as the iron and steel industry blast furnace, hot blast furnace, converter; colored reverberatory furnace

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