LOW CREEP FIRECLAY CHECKER BRICKS FOR HOT BLAST FURNACE
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t
- Supply Capability:
- 100000 m.t/month
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Product Name | Low Creep Fireclay Checker Bricks for Hot Blast Furnace |
Material | Fire Clay |
Quality Code | DRN120, DRL125 |
Al2O3 | 40 - 42% |
Supply Ability | About 100000 tons per year |
Package | Wooden pallet with plastic films |
Loading port | Tianjin port |
Lead time | 30 days for 300 tons To be confirmed for other quantities |
Features
1. Very low creep rate
2. Excellent Refractories under Load
Technical data for LOW CREEP FIRE CLAY BRICK DRN-120
ITEMS | UNIT | VALUE |
Al2O3 | % | ≥42 |
Fe2O3 | % | ≤2.5 |
Bulk Density 体密 | g/cm3 | 2.1 |
Apparent Porosity 气孔 | % | ≤24 |
CCS 常温耐压强度 | Mpa | ≥35 |
0.2 MPa RUL 荷软, 0.2MPa | ℃ | ≥1400 |
Refractoriness 耐火度 | ℃ | ≥1750 |
0.2 Mpa Creep Rate 1200℃×（0~50）h 蠕变率, 0.2MPa, 1200℃×（0~50）h | % | ≤0.8 |
Photos
Refractories for all process in steel mills
Factory photos
Package
Company profile
CNBM Group is short for China National Building Materials Group Corporation, which is established in 1984 with approval from the State Council
CNBM Group is the largest comprehensive building materials industry group in China.
CNBM Group is listed No.187 in on Fortune Global 500, 2020.
Refractory is one of the main products of the group. At the same time, under the globalization strategy, CNBM International is the exporter, logistic and local service supplier.
- Q: The matching ratio of masonrying refractory bricks cement
- Size of brickwork joint: Vertical and horizontal seam are 2 ~ 3 mm. The ratio of seam mud: Refractory clay mud 100%; per m3 dry, clean industrial water 400 ~ 600t/, no more than 3mm
- Q: How much is the silica powder in refractory bricks.
- It's not easy to construct, also need to consider the technical and economic indexes, DH3, 1 kg silica powder replaces 1 ~ 3 kg cement, which is the reason why silicon powder was not used and spreaded in concrete in past, choose some silica power fume. In general, with the smoke escaping by special capture device for collecting and processing To determine the mixing method of silica powder, when mixing silica powder, you should find out the optimal dosage in order to obtain the best results, as the study, the content is 5% ~ 30%, H, the mixing of super high strength concrete, use same amount of silicon powder to replace equal cement to main same fluidity, Microsilica or Silica Fume, it is mainly according to the design requirements, and does not reduce the amount of cement, sand and stone to adjust the optimal dosage of water reducer, when deciding the best mixing amount of silica fume, the concrete is too sticky, most use naphthalene water reducing agent.
- Q: What are the weak points of clay bricks?
- In the temperature range of 0~1000 DEG C, the clay brick volume increases with temperature uniform expansion, linear expansion curve approximates a straight line, the line expansion rate is 0.6%~0.7%, about half of the brick. When the temperature reaches 1200 degrees Celsius and then continues to heat up, the volume will begin to shrink from the maximum expansion. The residual shrinkage of clay brick results in the cracking of masonry joints, which is a major drawback of clay bricks. When the temperature is above 1200 degrees, the low melting point of the clay brick gradually melts because the particles are very close to each other due to surface tension, resulting in volume shrinkage.
- Q: Where the refractory bricks rider bricks that are used for building arch and vault should be put?
- Arch and vault shall be built simultaneously from both sides of the arch of the foot to the center of symmetry, when masonry, inverting concentric reducer of arch brick is prohibited; the lock should be driven into the brick arch from the side, if the last rider brick can't be driven from the side, you can process the first 1-2 brick to make the size of the lock and the lock buckle equal, and then drive suitable rider brick from top, and use steel plate to jam-pack the side; dismantling arch tire must be performed after all rider bricks are driven and lock brick arch foot ditch masonry is completed and the final tightening nut for skeleton retractor rear.
- Q: Is fireclay brick acidproof? Does clay brick anti corrosion when it's used to build chimney lining?
- Refractory bricks anti acid and alkali after high-temperature calcination, and anti-corrosion won't be a problem
- 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: Is refractory brick afraid of rain?
- High alumina clay is not afraid of rain, but covering is better, magnesium carbon refractory brick had better not be rained.
- Q: Whether the fire bricks are needed to be poured before construction?
- Refractory bricks do not absorb water, do not need to water, what's more, refractory bricks need special refractory mortar to build. Refractory brick is used in the high temperature furnace, you won't use it to build walls.
- Q: What is the difference between the refractory bricks, hand-made bricks and the machine pressure bricks?
- The density of hand-made is not enough, it's light, while the density of machine pressure is high, it's heavy, each has their own benefits
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LOW CREEP FIRECLAY CHECKER BRICKS FOR HOT BLAST FURNACE
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT or LC
- Min Order Qty:
- 100 m.t
- Supply Capability:
- 100000 m.t/month
OKorder Service Pledge
OKorder Financial Service
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