Method for making aluminum-magnesium carbon refectory brick from regenerated magnesium carbon bricks and aluminum-magnesium carbon bricks

A technology of aluminum-magnesium-carbon refractory bricks and magnesia-carbon bricks is applied in the field of refractory materials, which can solve the problems of poor stability and low life expectancy, and achieve the effects of strong impact resistance, high mechanical strength and reduction of pores.

Pending Publication Date: 2018-09-28
LIAONING ZHONGMEI HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Refractory workers have done extensive research on the recycling of waste magnesia-carbon bricks and aluminum-magnesia-carbon bricks, and each has its own know-how. The products produced are also used in thermal equipment in steel mills, but there are relatively no recycled materials. However, the service life is relatively low and the stability is poor, and the research and literature of adding different recycled materials to the same product have not been found

Method used

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  • Method for making aluminum-magnesium carbon refectory brick from regenerated magnesium carbon bricks and aluminum-magnesium carbon bricks
  • Method for making aluminum-magnesium carbon refectory brick from regenerated magnesium carbon bricks and aluminum-magnesium carbon bricks

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Embodiment 1

[0033] The method for manufacturing aluminum-magnesium-carbon refractory bricks using recycled magnesia-carbon bricks and aluminum-magnesium-carbon bricks includes the following steps:

[0034] Self-made recycled magnesia-carbon brick waste, particle size of 10%-30% of 8-1mm, 5%-15% of particle size of 0.1-1mm; self-made recycled aluminum-magnesia carbon brick waste, particle size of 15-40% of 8-1mm, particle size of 5%-15% of 0.1-1mm; fused magnesia, particle size of 5%-10% of 0.1-1mm

[0035] The specific configuration is as follows:

[0036] Granularity of recycled magnesia carbon brick waste is 8-1mm 10%, 0.1-1mm 5%;

[0037] Granularity of recycled aluminum-magnesium-carbon brick scrap is 8-1mm 45%, 0.1-1mm 10%;

[0038] The particle size of fused magnesia is 0.1m-1m 5%, 1μm-74μm 5%;

[0039] White corundum powder 1-44μm 8%

[0040] Needle coke particle size 1.5%; graphite particle size 100 mesh 2%;

[0041] Asphalt powder 0.5%; Metal silicon powder 200 mesh 1%; Nano silicon carbide ...

Embodiment 2

[0053] Method for manufacturing aluminum-magnesium-carbon refractory bricks using recycled magnesia-carbon bricks and aluminum-magnesium-carbon bricks:

[0054] Self-made recycled magnesia-carbon brick waste, particle size of 10%-30% of 8-1mm, 5%-15% of particle size of 0.1-1mm; self-made recycled aluminum-magnesia carbon brick waste, particle size of 15-40% of 8-1mm, particle size of 5%-15% of 0.1-1mm; fused magnesia, particle size of 5%-10% of 0.1-1mm

[0055] Specific ratio:

[0056] Recycled magnesia carbon brick waste, particle size 8-1mm 10%, 0.1-1mm 3%;

[0057] Recycled aluminum-magnesium-carbon brick waste, particle size 8-1mm 42%, 0.1-1mm 5%;

[0058] The particle size of fused magnesia is 0.1m-1m 8%, 1μm-74μm 5%;

[0059] White corundum powder 1-44μm 10%

[0060] Needle coke particle size 2%; graphite particle size 100 mesh 4%;

[0061] Pitch powder 1.5%; Metal silicon powder 200 mesh 1%; Nano silicon carbide 5%;

[0062] Metal aluminum powder 180 mesh 1%; a-alumina powder 1.5%;...

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Abstract

The invention belongs to the technical field of refectory materials and in particular relates to a method for making an aluminum-magnesium carbon refectory brick from regenerated magnesium carbon bricks and aluminum-magnesium carbon bricks. The method comprises the following steps: 1, preparing aggregate; 2, preparing pre-mixed powder; 3, carrying out mixing refining; 4, carrying out a molding process; 5, drying. By adopting the method, the regenerated magnesium carbon bricks and the aluminum-magnesium carbon bricks are adopted as main raw materials, a part of an efficient additive is furtheradded, under the condition that a conventional production process is not changed, an aluminum-magnesium carbon brick which is high in medium-high temperature strength, high in volume density and excellent in corrosion resistance and thermal shock resistance is developed, and common industrial production can be carried out by using conventional experiment facilities.

Description

Technical field [0001] The invention belongs to the technical field of refractory materials, and particularly relates to a method for manufacturing aluminum-magnesium-carbon refractory bricks by using recycled magnesia-carbon bricks and aluminum-magnesium-carbon bricks. Background technique [0002] In recent years, as the national authorities have increased their environmental protection efforts, some companies that do not meet environmental protection standards have stopped production, causing serious shortages of ore resources and refractory raw materials. The prices of refractory raw materials have risen extremely fast, causing huge costs and costs to refractory product manufacturers. Operating pressure has a serious impact on the overall production and operation order of the refractory industry. Enterprises have taken cost management as the core of corporate management. Strengthening cost management and the use of recycled materials have become one of the important means to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/103C04B35/622
CPCC04B35/103C04B35/62204C04B2235/3206C04B2235/3409C04B2235/3826C04B2235/422C04B2235/425C04B2235/5276C04B2235/77C04B2235/96C04B2235/9607
Inventor 王树山王珏谷慧鹏付刚王利王亮
Owner LIAONING ZHONGMEI HLDG
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