Precast block was precasted by high strength castables with a super high purity cement. These blocks provide high density, strength and excellent abrasion resistance, which are produced for extreme applications such as roof, spout and taphole block for EAF, bubbling sleeve and well block for ladle and dam block for tundish. Precast block is mainly made of refractory castable and refractory plastic. In industrial kilns and thermal engineering equipment, the use of prefabricated blocks to build furnaces can achieve mechanized lifting, save people and save energy, shorten the construction period,
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Category:
Monolithic Refractory
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Precast Block Details
Precast block was precasted by high strength castables with a super high purity cement. These blocks provide high density, strength and excellent abrasion resistance, which are produced for extreme applications such as roof, spout and taphole block for EAF, bubbling sleeve and well block for ladle and dam block for tundish.
Precast block is mainly made of refractory castable and refractory plastic. In industrial kilns and thermal engineering equipment, the use of prefabricated blocks to build furnaces can achieve mechanized lifting, save people and save energy, shorten the construction period, and improve the furnace operation rate.
The quality ranges from tens of kilograms to several tons, so it is pided into large, medium and small prefabricated blocks; prefabricated blocks are equipped with reinforcing steel and anchors, so they are pided into ordinary prefabricated blocks, reinforced prefabricated blocks and anchor prefabricated blocks Wait.
Features
1.The overall structural strength is high.
2.Save time, save on-site mixing, pouring or pounding, baking and other steps of refractory castable.
3.Save the consumption of refractory materials such as refractory mud. The refractory prefabricated parts are assembled with tenon joints and there is no straight seam. Once the furnace construction is completed, it can be quickly heated up and put into use.
4.Arbitrarily pre-made into various shapes, good thermal shock stability, high strength and good resistance to spalling.
According to general statistics, the use of refractory precast block can extend the life cycle of refractory materials, reduce the loss of refractory materials at this location by more than 40%; shorten the kiln shutdown and maintenance by at least 35%, and reduce the work intensity of workers to repair Above; Because the precast parts of castables are directly masonry, which shortens the construction time and reduces the construction cost, and eliminates some palladium nails and calcium silicate board, from the perspective of degradation, the cost is reduced by at least 20%.
Applications
Nonferrous Metal Furnace Tap Hole - Ladle Top Bubbling Sleeve
Well Block of Porous Plug
Physical And Chemical Indicators
Brand |
PCB-RT1 |
PCB-RT2 |
PCB-S1 |
PCB-S2 |
PCB-D |
PCB-W |
PCB-WK |
|
Bulk Density (g/cm3) |
2.98 |
2.85 |
2.15 |
2.4 |
2.43 |
2.92 |
3 |
|
Cold Crushing Strength(MPa) |
25 |
45 |
30 |
40 |
35 |
28 |
30 |
|
Permanent Linear Change@1,500℃ x 2H (%) |
0.07 |
-0.09 |
-0.75 |
0.5 |
-0.1 (at1200℃) |
0.2 |
- |
|
Chemical Analysis(%) |
Al2O3 |
75 |
60 |
45 |
65 |
50 |
90 |
91 |
SiO2 |
- |
- |
40 |
30 |
- |
- |
- |
|
MgO |
- |
- |
- |
- |
- |
- |
7 |
|
Cr2O3 |
- |
- |
- |
- |
- |
7 |
||
SiC+C |
18 |
14 |
8 |
- |
5 |
- |
- |
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