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Converter bedding face repair material with magnesia-carbon residue bricks serving as main raw material and preparation method of converter bedding face repair material

A technology of magnesia-carbon residual bricks and main raw materials, applied in the field of refractory materials, can solve the problems of waste of available resources, low recycling rate, health hazards, etc., and achieves increased stability and compactness, short sintering time, and improved high temperature resistance The effect of folding strength

Active Publication Date: 2017-07-25
海城利尔麦格西塔材料有限公司 +1
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Problems solved by technology

[0005] However, most domestic recycling of waste refractory materials is in the experimental stage, and the recycling rate is low.
A huge amount of waste refractory materials has caused a great waste of available resources and serious pollution of the environment, and has also caused great harm to human health. Therefore, we must attach great importance to the recycling of waste refractory materials and actively limit the amount of waste refractory materials. It is imperative to strive to promote the development and research of waste refractory materials recycling technology

Method used

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  • Converter bedding face repair material with magnesia-carbon residue bricks serving as main raw material and preparation method of converter bedding face repair material
  • Converter bedding face repair material with magnesia-carbon residue bricks serving as main raw material and preparation method of converter bedding face repair material
  • Converter bedding face repair material with magnesia-carbon residue bricks serving as main raw material and preparation method of converter bedding face repair material

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Embodiment Construction

[0027] Embodiments of the present invention are further described below:

[0028] A converter large-face repair material with magnesia-carbon residual bricks as the main raw material is prepared from the following raw materials in parts by weight:

[0029] Aggregate: 75-114 parts of magnesia-carbon residual brick, 10-20 parts of 200-mesh dead-fired magnesia.

[0030] The mass percentages of the chemical components in the magnesia-carbon residual bricks are: MgO≥80%, CaO≤1.4%, SiO 2 ≤2.2%, Fe 2 o 3 ≤0.9%, body density ≥3.10g / ㎝ 3 .

[0031] 91 dead-burned magnesia fine powder with a particle size of 200 meshes is used, and the mass percentages of its chemical components are: MgO≥91%, CaO≤1.5%, SiO 2 ≤2.5%, Fe 2 o 3 ≤1.8%, body density ≥3.20g / ㎝ 3 .

[0032] Ingredients: 1-3 parts of metal iron powder with a particle size of 200 meshes, 1-2 parts of yttrium oxide, and 2-5 parts of dicalcium silicate.

[0033] Binder: 10-15 parts of asphalt, 1-3 parts of sodium oleate, 0....

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Abstract

The invention discloses a converter bedding face repair material with magnesia-carbon residue bricks serving as a main raw material. The magnesia-carbon residue bricks are used as the main raw material; the physical and chemical property of the raw material is improved through a pre-sintering method, so as to improve the high-temperature mechanical property of prefabricated materials; meanwhile, the prefabricated materials with different grain compositions are premixed with refired magnesia; modified asphalt is used as a binding agent, and the magnesia-carbon residue bricks are fully used as secondary resources; therefore, on the premise of guaranteeing high thermodynamic property of the converter bedding face repair material, the cost of a refractory material and the steelmaking cost are reduced.

Description

technical field [0001] The invention relates to the field of refractory materials, in particular to a converter large-face repair material with magnesia-carbon residual bricks as the main raw material. Background technique [0002] At present, all countries in the world have fully realized that used refractory materials are cheap renewable resources, which can significantly improve the economic and social benefits of enterprises, and the recycling of used refractory materials is also a contribution to environmental protection. Therefore, in the near future, the production of high value-added recycled products using used refractories as raw materials will develop rapidly, and the reuse rate of used refractories will increase rapidly, and there will be a trend towards zero emissions. [0003] For example, the US government and companies have jointly developed a development plan to extend the service life of refractory materials and recycle waste refractory materials. At the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/043C04B35/622
CPCC04B35/043C04B35/62204C04B2235/3208C04B2235/3225C04B2235/3272C04B2235/3418C04B2235/3445C04B2235/3454C04B2235/405C04B2235/77C04B2235/96
Inventor 金钊李艳丽董会彬张义先尹斌王健骁
Owner 海城利尔麦格西塔材料有限公司
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