Anti-seepage air-permeable brick and manufacturing method thereof

A technology of air-permeable bricks and micro-pores, which is applied to ceramic products, other household appliances, and other household appliances. It can solve problems affecting the rapid turnover of ladles, shortened lifespan, and ablation of air-permeable bricks, so as to improve thermal shock stability and service life. Life, the effect of avoiding infiltration and steel slag

Active Publication Date: 2014-08-13
LUOYANG KECHUANG NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this process, the surface of the air outlet end of the air brick will be severely ablated, resulting in a significant reduction in its life, thus affecting the rapid turnover of the ladle

Method used

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  • Anti-seepage air-permeable brick and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Air brick formula:

[0037] Component Particle Size Content (weight ratio)

[0038] White corundum particles 4-2mm 12%

[0039] 2-1mm 22%

[0040] 1-0mm 21%

[0041] Tabular corundum fine powder 325 mesh 10%

[0042] α-Al 2 o 3 Micropowder 5μm 10%

[0043] Spinel fine powder 325 mesh 15%

[0044] Hydrated Aluminum Oxide 5%

[0045] Starch 325 mesh 1%

[0046] Aluminum sulfate 325 mesh 2%

[0047] Anhydrous magnesium sulfate 325 mesh 2%

[0048] Organic Fiber 0.5%

[0049] ADS1 0.2%

[0050] The manufacturing method of this embodiment includes the following steps:

[0051] The first step: prepare raw materials according to the formula, and inspect the raw materials according to the national standard, and put them into use after passing the inspection;

[0052] The second step: the fine powder part in the formula, including tabular corundum fine powder, α-Al 2 o 3 Micropowder, spinel powder, hydrated alumina, starch,...

Embodiment 2

[0062] Air brick formula:

[0063] Component Particle Size Content (weight ratio)

[0064] Tabular alumina particles 4-2mm 12%

[0065] 2-1mm 22%

[0066] 1-0mm 21%

[0067] White corundum fine powder 325 mesh 12%

[0068] α-Al 2 o 3 Micropowder 5μm 8%

[0069] Spinel fine powder 325 mesh 15%

[0070] Hydrated Aluminum Oxide 5%

[0071] Starch 325 mesh 1%

[0072] Aluminum ammonium sulfate 325 mesh 2%

[0073] Anhydrous magnesium sulfate 325 mesh 2%

[0074] Organic Fiber 0.5%

[0075] ADS1 0.2%

[0076] The manufacturing method of this embodiment is the same as that of Embodiment 1.

Embodiment 3

[0078] Air brick formula:

[0079] Component Particle Size Content (weight ratio)

[0080] Dense corundum particles 4-2mm 12%

[0081] 2-1mm 23%

[0082] 1-0mm 20%

[0083] Tabular corundum fine powder 325 mesh 12%

[0084] α-Al 2 o 3 Micropowder 5μm 8%

[0085] Spinel fine powder 325 mesh 15%

[0086] Hydrated Aluminum Oxide 5%

[0087] Starch 325 mesh 1.5%

[0088] Aluminum ammonium sulfate 325 mesh 1.5%

[0089] Anhydrous magnesium sulfate 325 mesh 2%

[0090] Organic Fiber 0.5%

[0091] ADS1 0.2%

[0092] The manufacturing method of this embodiment is the same as that of Embodiment 1.

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PUM

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Abstract

The invention discloses a functional refractory material and a manufacturing method thereof, and especially relates to an anti-seepage air-permeable brick (formed by using a vibration pouring process) and manufacturing method thereof, wherein a plurality of mutually-communicated micropores are uniformly distributed in a brick body of the air-permeable brick. The manufacturing method comprises the following steps of: uniformly dispersing a micropore forming agent in a green body of the air-permeable brick by using fine powder co-grinding, mixing and vibration casting molding processes; and then carrying out maintenance, baking, high-temperature firing, steel shell packaging and the like on the obtained product. The brick and manufacturing method thereof disclosed by the invention have the advantages that through high temperature firing, the plurality of uniformly-distributed and mutually-communicated micropores are left in the whole brick body of the air-permeable brick; the diameters of the micropores are extremely small, thereby fundamentally avoiding the steel and steel slag diffused phenomena of the air-permeable brick; in addition, the plurality of uniformly-distributed micropores also significantly improve the thermal shock stability of the air-permeable brick and greatly prolong the service life of the air-permeable brick, thereby ensuring the rapid and safe operation of production.

Description

technical field [0001] The invention relates to an air permeable brick for refining outside a furnace, in particular to an air permeable brick with anti-seepage effect and a manufacturing method thereof. Background technique [0002] With the rapid development of smelting technology, the ladle is no longer just a container for receiving molten steel, but in a sense it is a refining furnace. In order to improve the refining efficiency of the ladle, a bottom blowing argon permeable brick is usually installed at the bottom of the ladle to effectively homogenize the temperature and composition of the molten steel through the stirring of the argon gas, and to make the non-metallic inclusions float up smoothly, so as to achieve the purpose of refining molten steel . It can be seen that whether the ladle refining can be carried out smoothly depends on whether the permeable brick can work normally and effectively. [0003] At present, the most widely used ventilating brick in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B30/02C04B111/27
Inventor 马军强孙顺张小旭
Owner LUOYANG KECHUANG NEW MATERIAL CO LTD
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