Tundish seating brick containing reclaimed material and preparation method of tundish seating brick
A technology for cladding bricks and recycled materials, applied in the field of refractory materials, can solve the problem of high cost of aluminum-magnesium-carbon bricks, and achieve the effects of preventing low refractoriness and improving strength and anti-scour performance.
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[0034] The present invention also provides a kind of preparation method based on the tundish block brick containing regenerated material as described in any one of the above, comprising the steps:
[0035] S1) obtain recycled tundish cover waste;
[0036] S2) according to the parts by weight, the regenerating capping waste, high alumina bauxite, liquid resin, graphite, quartz powder, silicon micropowder and kyanite are mixed, and after passing the inspection, discharging;
[0037] S3) put the qualified discharge material into the mold, press molding, and obtain the tundish block blank;
[0038] S4) heat-treating the tundish seat brick embryo to obtain a tundish seat brick.
[0039] For the tundish seat bricks containing regenerated materials obtained by the present invention, the content of alumina in the cladding wastes in the regeneration is greater than 70% through the selection of the centering and capping wastes. Reasonable addition of powder, silicon micropowder and ky...
Embodiment 1
[0047] Preparation of tundish block (sample 1): The preparation steps include:
[0048] 101) first clean up the steel slag and scrap steel on the surface of the used tundish cover waste to obtain large pieces of tundish cover waste; then crush the tundish cover waste to the required particle size, and perform iron removal treatment at the same time to obtain a regeneration medium. Covering waste; among them, the covering waste in regeneration includes 20 pieces of waste in regeneration with a particle size of 3-5mm, 22 pieces of waste in regeneration with a particle size of 1-3mm, and 21 pieces of waste in regeneration with a particle size of 0-1mm , the particle size is 200 meshes in 10 parts of cladding waste in regeneration; the content of alumina in the cladding waste in regeneration is more than 70%;
[0049] 102) 20 parts of 3-5mm regenerated cover waste, 22 parts of 1-3mm regenerated cover waste, and 21 parts of 0-1mm regenerated cover waste, mixed for 1 minute, added 3...
Embodiment 2
[0060] Preparation of tundish block (sample 2): The preparation steps include:
[0061] 201) first clean up the steel slag and scrap steel on the surface of the used tundish cover waste to obtain large pieces of tundish cover waste; then crush the tundish cover waste to a required particle size, and perform iron removal treatment at the same time to obtain a regenerated medium. Covering waste; among them, the cover waste in regeneration includes 22 pieces of cover waste in regeneration with a particle size of 3-5mm, 21 pieces of cover waste in regeneration with a particle size of 1-3mm, and 17 pieces of cover waste in regeneration with a particle size of 0-1mm 2. The particle size is 14 parts of 200-mesh regeneration covering waste; the content of alumina in the regeneration covering waste is more than 70%;
[0062] 202) 22 parts of 3-5mm regenerated cap waste, 21 parts of 1-3mm regenerated cap waste, and 17 parts of 0-1mm regenerated cap waste, mix for 1 minute, add 3.5 parts...
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