Carbon Blocks for Blast Furnace Hearths and Bottom

Carbon Blocks for Blast Furnace Hearths and Bottom

1 ,Index: 1)Technical index of Microporous Carbon Brick 2)Technical index of Semi-graphite Carbon Brick 3)Techncial index of Common Carbon Brick 2,Conditions that must be met for carbon bricks for furnace bottom: 1) Hot metal can not be immersed into tissues through stomata. 2) Less melting due...
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1,Index of Carbon Brick For Blast Furnace Hearth:

1)Technical index of Microporous Carbon Brick

Bulk   density                 

g/cm3

≥1.75

Apparent porosity                 

 %

≤13

Compressive strength              

Mpa

≥35

Permeability                     

mDa

0.35

Oxygenation efficiency             

 %

≤4.5

Hot metal erosion   index          

 %

≤30

Average Pore   diameter           

um

0.110

Coefficient of heat conductivity 

W/m.k,600

23

Alkali resistance


excellent

2)Technical index of Semi-graphite Carbon Brick

Ash                             

%

≤4

Bulk   density                  

g/cm3

1.60

Apparent porosity                 

 %

≤13

Compressive strength              

Mpa

≥46

Permeability                     

mDa

38

Oxygenation efficiency            

 %

≤13

Hot metal erosion   index         

 %

28

Average Pore   diameter           

um

7

Coefficient of heat conductivity 

W/m.k,600

11

Alkali resistance


good

3)Techncial index of Common Carbon Brick

 

Ash                             

%

 <8

Bulk   density                  

g/cm3

≥1.5

Compressive strength              

Mpa

≥29.6

Total porosity                    

 %

≤23

Coefficient of heat conductivity 

W/m.k,600℃

>5.0

Fixed   Carbon                   

%

>88

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2,Conditions that must be met for carbon bricks for furnace bottom:

1) Hot metal can not be immersed into tissues through stomata.

2) Less melting due to molten iron

3) High heat conductivity and good cooling effect

4) Strong alkali resistance

5) Low permeability to prevent zinc and oxidizing gas intrusion

6) Low elasticity, high strength, heat shock resistance

3,Types of carbon bricks for hearth and bottom of blast furnace:

1) Standard carbon bricks

2) Ultrafine Porous Carbon Bricks (Graphite Bricks)

3) Microporous semi-graphite brick

4) Graphite Bricks

4,Characteristic of Carbon Brick For Blast Furnace Hearth: It is easy to be eroded by air, carbon dioxide and water vapor, as well as iron and alkali metals at high temperature,The damage mechanism of different parts of blast furnace lining is different. Carbon refractories of different materials must be selected according to the damage mechanism and cooling conditions.The product has good thermal shock stability, small coefficient of thermal expansion, high temperature resistance, corrosion resistance of various acids, alkalis, salts and organic solvents. Carbon brick is widely used in metallurgical industry, in which the consumption of carbon brick in blast furnace is the largest, such as the bottom and hearth of blast furnace. In addition, carbon brick is well used in pickling tank, electroplating tank, dissolving tank in paper industry and reaction tank in chemical industry.

5.Good feedback of product use effect,the products have been exported to Australia, Kenya, Mexico

6.We are a professional supplier, who can provide customers with free product technology, use and other issues.



Do you want to find a professional supplier of refractory products?


Do you want to find a stable and credible supplier?


Then please contact with us



Contact me:

Email:wp@cnjingganrefractory.com/sdwenping@163.com

TEL: 86-0533-4188518 / FAX: 86-0533-4188518 

Rose:+86-13275332819(wechat/whatsapp number)


We make sure that all our Carbon Blocks for Blast Furnace Hearths and Bottom are rigorously debugged several times prior to leaving the factory to ensure that each customer receives high quality products. We sincerely invite you to be our business partners for mutual benefits. We follow latest effective washing and straightening processes that allow us to offer unmatched quality of products for our clients.

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  • Tel: +86-533-4188518
  • Mob: +8613275332819
  • E-mail: sdwenping@163.com
  • Add: Room 711, NO.3, Yanhe Road, Boshan, Zibo, Shandong, China