Refractory Fire Clay Brick

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General Information

Fireclay bricks are made from clinker clay. The alumina content ranges from 36% to 48%.

Feature
Low thermal conductivity        
High refractoriness  
High mechanical strength      
Excellent thermal shock resistance

Application
Fireclay bricks are commonly applied in blast furnace, hot blast furnace, teeming ladle, glass furnace, etc.

Item

Index

SK-30

SK-32

SK-34

SK-35

AL2O3 %  

30

35

38

45

Fe2O3 %  

2.5

2.5

2

2

Refractoriness(SK)

30

32

34

35

Refractoriness Under Load, 0.2MPa, (°C )

1250

1300

1350

1400

Apparent Porosity (%)

22-26

22-26

20-24

20-22

Bulk Density (g/cm³)

1.9-2.0

1.95-2.1

2.1-2.2

2.15-2.22

Cold Crushing Strength (MPa)

20

25

25

30

Thermal Expansion at 1000°C (%)

0.8

0.6

0.6

0.5

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Q:Tunnel kiln firing refractory brick by 0 against the good rely on
Modern advanced kiln has high temperature strength and good thermal shock resistance, better environmental protection, is the most economical and efficient kiln. (3), good resistance to gas erosion, due to tunnel kiln's flue gas discharge temperature is generally not higher than 250℃. In order to guarantee the normal temperature system and pressure system of the kiln. Its firing temperature is at 1200-1900℃: (1) or even higher, the requirement for the firebrick, compared with the intermittent kiln, is an important thermal equipment in refractory industry. It is a kind of energy-saving kiln. Tunnel kiln is a kind of kiln that can continuously produce and has high degree of automation.
Q:refractory bricks of fireclay
According to the preparation process, it can be divided into bricks, high alumina brick, magnesia brickand so on, such as refractory clay brick, and ordinary brick; according to the shape and size, it can be divided into standard brick and silica brick, it can withstand all kinds of physical and chemical changes and mechanical action at high temperature; silica brick can be used as high-temperature building materials and structural material to build kiln and kinds of thermal equipments. Refractory material and fused brick with a certain shape and size are called refractory brick for short.
Q:is there any requirement for radioactive materials in refractory materials.
they all do not cause radiological hazards to the environment, so no requirements! analyze rom the element , magnesia. Do not know if it is useful, but material used by refractory materials, firstly any chemical elements are radioactive, human beings can not close, then, such as silicon dioxide: If it is radioactive. analyze from use, such as bauxite, does not have the use value
Q:How to adjust the temperature in the 160 meter tunnel kiln?
Increase will reduce the amount of fuel added to the kiln, then the temperature will change.
Q:should clay or refractory cement be used to lay refractory bricks?
structure strength of this brick lining is not good, apply some refractory mud, only use some virgin clay and corundum, many of the traditional approaches are very simple, mullite and carbon slurry, the specific products are selected according to the selected material and water glass or organic binder. binding agent can choose phosphate, silica and high alumina, clay is one part of the refractory clay, there are many kinds of refractory slurry according to the material, clay-based mud does use refractory cement and corrosion resistance is low
Q:What is the difference between the refractory bricks, hand-made bricks and the machine pressure bricks?
Withstanding voltage strength is not the same, the strength of the mechine-made is higher
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:How aluminium oxide becomes a entity from the the form of powder (such as a ball, a stone, or a refractory brick)?
Just like the process of making steamed bun from flour. Ball milling ---in the auxiliary material to make the slurry --- suppress the body --- high temperature calcination
Q:How to test the various components of the refractory brick?
If you want to know the chemical compound components, you can do the analysis of meteorological chromatography, and then testing, if you just want to detect contents of elements, you can do a XRF, but you should smash, grind and homogenize the refractory bricks. The specific operation process is not convenient to describe in detail, that is, X ray diffraction, through X ray fluorescence analysis, you can know that the elements and contents contained in it, if you want to understand its internal structure, you can also do a XRD
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.
If the raw materials are different, then the redness is different under different temperatures.

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