Unburned magnesium-calcium zirconate brick not containing free carbon
A technology of magnesia-calcium-zirconium bricks and free carbon, applied in the field of unfired magnesia-calcium-zirconium bricks, can solve problems such as structural spalling and poor thermal shock resistance, and achieve improved service life, high hydration resistance, and excellent slag erosion resistance Effect
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[0038] Example 1
[0039] The raw material ratio of unburned magnesia calcium zirconium bricks without free carbon is shown in Table 2
[0040] Table 2 Example 1 Preparation formula
[0041]
[0042]
[0043] A method for producing unburned magnesia-calcium-zirconium bricks without free carbon, the specific steps are as follows:
[0044] 1) Raw material crushing, screening and fine grinding:
[0045] 97 fused magnesia is crushed and finely ground into 0-1mm, 200 mesh;
[0046] 20 magnesia calcium sand is crushed and sieved into 3-5mm and 1-3mm;
[0047] Rotary kiln magnesia-calcium sand (BS55) is sieved into 3-5mm, 1-3mm, 0-1mm;
[0048] 2) Ingredients:
[0049] Weigh the raw materials according to the formula, and premix 1-3 parts of 0-1mm 97 fused magnesia with capacitor zirconia differential, high temperature asphalt powder and 0-1mm to form a premix;
[0050] 3) Mixing:
[0051] First add 3-5mm, 1-3mm, 0-1mm particle size materials, dry blend for 3min, then add binder anhydrous thermoplas...
Example Embodiment
[0066] Example 2
[0067] The raw material ratio of unburned magnesia-calcium-zirconium bricks without free carbon is shown in Table 3
[0068] Table 3 Example 2 Preparation formula
[0069] raw material
[0070] A method for producing unburned magnesia-calcium-zirconium bricks without free carbon, the specific steps are as follows:
[0071] 1) Raw material crushing, screening and fine grinding:
[0072] 97 fused magnesia is crushed and finely ground into 0-1mm, 200 mesh;
[0073] 20 magnesia calcium sand is crushed and sieved into 3-5mm and 1-3mm;
[0074] Rotary kiln magnesia-calcium sand (BS55) is sieved into 3-5mm, 1-3mm, 0-1mm;
[0075] 2) Ingredients:
[0076] Weigh the raw materials according to the formula, and premix 1-3 parts of 0-1mm 97 fused magnesia with capacitor zirconia differential, high temperature asphalt powder and 0-1mm to form a premix;
[0077] 3) Mixing:
[0078] First add 3-5mm, 1-3mm, 0-1mm particle size materials, dry blend for 3min, then add binder anhydrous the...
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