High-strength wear-resistant anti-corrosion brick and manufacturing method thereof
A high-strength, kaolin technology, applied in the field of refractory materials, can solve the problems of unusable, service life of only one to two months, and service life of only 80 days, etc., to achieve moderate cost, good performance and low wear.
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[0028] Example 1:
[0029] A high-strength wear-resistant and anti-intrusion brick includes the following raw materials in parts by weight: 60 parts by weight of bauxite, 20 parts of chromium concentrate, 1 part of metallic silicon powder, and 10 parts of kaolin.
[0030] The bauxite contains Al 2 O 3 ≥80%, Fe 2 O 3 ≤1.2%, volume density 2.6~2.8g / cm 3 , Particle size 0~5mm; the chromium concentrate contains Cr 2 O 3 ≥47%, particle size of 0~0.05mm; said metallic silicon powder contains metallic silicon content ≥96, particle size of 0~1μm; said kaolin SiO 2 ≥62%, Al 2 O 3 ≥35%, Fe 2 O 3 ≤1.5%, particle size 0~0.05mm.
[0031] A method for preparing high-strength wear-resistant and anti-intrusion bricks sequentially includes the following steps:
[0032] 1) Ingredients: According to the formula, mix the proportion of bauxite, chromium concentrate, metallic silicon powder, and kaolin, plus 65% phosphoric acid, which accounts for 2% of the total weight of the above components, and send the...
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[0039] Example 2:
[0040] A high-strength wear-resistant and anti-intrusion brick includes the following raw materials in parts by weight: 80 parts by weight of bauxite, 7 parts of chromium concentrate, 10 parts of metallic silicon powder, and 8 parts of kaolin.
[0041] The bauxite contains Al 2 O 3 ≥85%, Fe 2 O 3 ≤1.2%, volume density 2.6~2.8g / cm 3 , Particle size 0~5mm; the chromium concentrate contains Cr 2 O 3 ≥47%, particle size 0~0.05mm; said metal silicon powder contains metallic silicon content ≥96%, particle size 0~1μm; said kaolin SiO 2 ≥62%, Al 2 O 3 ≥35%, Fe 2 O 3 ≤1.5%, particle size 0~0.05mm.
[0042] A method for preparing high-strength wear-resistant and anti-intrusion bricks sequentially includes the following steps:
[0043] 1) Ingredients: According to the formula, mix the proportions of bauxite, chromium concentrate, metallic silicon powder, and kaolin, plus 30% phosphoric acid, which accounts for 7% of the total weight of the above components, and send them into ...
Example Embodiment
[0050] Example 3:
[0051] A high-strength wear-resistant and anti-intrusion brick includes the following raw materials in parts by weight: 75 parts by weight of bauxite, 8 parts of chromium concentrate, 5 parts of metallic silicon powder, and 1 part of kaolin.
[0052] The bauxite contains Al 2 O 3 ≥85%, Fe 2 O 3 ≤1.2%, volume density 2.6~2.8g / cm 3 , Particle size 0~5mm; the chromium concentrate contains Cr 2 O 3 ≥47%, particle size 0~0.05mm; said metal silicon powder contains metallic silicon content ≥96%, particle size 0~1μm; said kaolin SiO 2 ≥62%, Al 2 O 3 ≥35%, Fe 2 O 3 ≤1.5%, particle size 0~0.05mm.
[0053] A method for preparing high-strength wear-resistant and anti-intrusion bricks sequentially includes the following steps:
[0054] 1) Ingredients: According to the formula, mix the proportions of bauxite, chromium concentrate, metallic silicon powder, and kaolin, plus 40% phosphoric acid, which accounts for 5% of the total weight of the above components, and send them to the ...
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