Blast Furnaces Launders Magnesia Refractory Bricks
Customized Pre-fabrication parts magnesia refractory bricks for launders in blast furnaces
Product Description
The production process of firing magnesia-chrome bricks is similar to that of magnesia bricks. In order to eliminate the brick during the firing process due to MgO and Cr2O3, Al2O3 or directly combined with magnesia chrome bricks
The loosening effect caused by the expansion of iron oxides to form spinel can also be made into a magnesia chrome brick using a synthetic co-sintered material. In addition, there are non-calcined magnesia chrome bricks, for example, non-calcined magnesia chrome bricks combined with an inorganic magnesium salt solution. The non-burned magnesia chrome brick has a simple production process, low cost and good thermal stability, but the high temperature strength is far less than that of the fired brick. In the late 1950s, a so-called "direct combination" magnesia chrome brick was developed. The brick is characterized by pure raw materials, high firing temperature, direct combination of high temperature phases such as periclite and spinel, and low-melting phase such as silicate is island-like distribution, thus significantly increasing the high temperature of the brick. Strength and slag resistance.
| Catagory | Direct-Bonded Magnesia-Chrome Brick | Semi-Rebonded Magnesia-Chrome Brick | Magnesia-Chrome Brick | Rebonded Magnesia-Chrome brick |
| MgO% ≥ | 80 | 60 | 65 | 65 |
| Cr2O3% ≥ | 4 | 16 | 8 | 16 |
| SiO2%≤ | 2 | 1.5 | 1.2 | |
| Apparent porosity%≤ | 18 | 17 | 20 | 16 |
| Cold Crushing Strength(CCS)Mpa ≥ | 40 | 40 | 35 | 45 |
| Refractoriness Under Load(RUL)℃ ≥ | 1600 | 1750 | 1620 | 1750 |
Application of Magnesia Chrome Bricks
1. Furnaces of metallurgy industry, heat treatment furnace
2. Furnaces of chemical industry and construction industry.
3. Furnace of incineration of garbage, CFB (circulating fluidized bed)
Standard sizing: 230 x 114 x 65 mm others up to the client
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Packing and delivery
- Wooden pallets with plastic film or according to your request.
1. Strong packing protects the goods from any possible damage during transit.
2. Solid packing and overall stuffing prevent the cases from vibration and jarring.
3. Necessary precaution is taken to protect goods from pilferage or rain.
4. Every possible precaution is taken to ensure our products in prime condition when reach customers around the world.
- Shanghai
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