CN103044068B - Aluminum-carbon light insulating brick - Google Patents
Aluminum-carbon light insulating brick Download PDFInfo
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- CN103044068B CN103044068B CN201310010082.3A CN201310010082A CN103044068B CN 103044068 B CN103044068 B CN 103044068B CN 201310010082 A CN201310010082 A CN 201310010082A CN 103044068 B CN103044068 B CN 103044068B
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Abstract
The invention discloses an aluminum-carbon light insulating brick which is mainly prepared from the following raw materials in parts by weight: 60-75 parts of metallurgical coke, 8-12 parts of alumina hollow balls, 3-6 parts of floating beads, 2-4 parts of polystyrene foam balls and 13-17 parts of phenolic resin. The alumina hollow balls, the floating beads and the polystyrene foam balls, which are high-temperature resistant, high in heat-insulating property, high in strength and low in volume density are added on the basis of the original light carbon brick; and moreover, the characteristics of the polystyrene foam balls are utilized, the polystyrene foam balls are totally volatilized after high-temperature treatment without residues, and pores can be reserved in the aluminum-carbon light insulating brick, so that the heat-insulating property of the bricks is improved, and due to the material addition, the strength of the brick can be further improved.
Description
Technical field
The invention belongs to mineral hot furnace furnace lining technical field, relate in particular to a kind of for the insulating brick in mineral hot furnace.
Background technology
It is to form with metallurgical coke, coal-tar pitch, coal tar mixing aftershaping high-temperature firing that the light carbon brick in past is made.Because metallurgical coke is the burnt material of porous, corresponding thermal conductivity and volume density are lower than other carbon material.But the thermal conductivity of carbon materials itself is better, volume density is still large than aluminosilicate property light cinder brick, so in the strengthening smelting of mineral hot furnace, particularly in furnace of calcium carbide liner, can not meet the needs of insulation, make steel plate of furnace hearth rubescent, even have the generation of the accident of burning.
Summary of the invention
To be solved by this invention is the poor technical problem of light carbon brick heat-proof quality, and a kind of aluminium carbon light heat-insulation brick is provided.
In order to address the above problem by the following technical solutions: a kind of aluminium carbon light heat-insulation brick, mainly be prepared from by the raw material of following weight part: 60 ~ 75 parts of metallurgical cokes, 8 ~ 12 parts of alumina hollow balls, float 3 ~ 6 parts, pearl, 2 ~ 4 parts, polystyrene foam ball, 13 ~ 17 parts, resol.
Described metallurgical coke is made up of the metallurgical coke of following specification: 28 ~ 32 parts of the metallurgical cokes that particle diameter is 8-3mm, 14 ~ 18 parts of the metallurgical cokes that particle diameter is 3-0mm, 19 ~ 25 parts of <0.088mm metallurgical cokes.
Aluminium carbon light heat-insulation brick, mainly be prepared from by the raw material of following weight part: 30 parts of the metallurgical cokes of 8-3mm, 16 parts of the metallurgical cokes of 3-0mm, 22 parts of <0.088mm metallurgical cokes, 10 parts of <0.5mm alumina hollow balls, <0.5mm floats 4 parts, pearl, 3 parts, <1mm polystyrene foam ball, 15 parts, resol.
Preparation method is as follows: by above raw material under normal temperature environment, stir, vibratory compaction, after 200 DEG C of bakings, burn till through 1250 DEG C of high temperature again, then ground finish forms.
Concrete preparation method is as follows: above raw material is carried out to kneading at normal temperatures, first add mixed 3 minutes of metallurgical coke that particle diameter is 8-3mm, metallurgical coke that particle diameter is 3-0mm, add again resol mixed 5 minutes, then add the <0.088mm metallurgical coke, <0.5mm alumina hollow ball, the <0.5mm that are mixed in advance to float pearl, the mixed 15-20 minute of <1mm polystyrene foam ball, ageing mixture after taking the dish out of the pot, the ageing mixture time is more than 8 hours; Then moulding, mold temperature 35-36 DEG C, forming pressure 1-3 minute then toasts 24 hours at 200 DEG C of temperature, burns till finally by 1250 DEG C of high temperature, and then ground finish forms.
The present invention has added alumina hollow ball high temperature resistant, that heat-proof quality good, intensity is high, volume density is less, has floated pearl and polystyrene foam ball on the basis of former light carbon brick; And utilize the characteristic of polystyrene foam ball, after pyroprocessing, all volatilization does not have residue, can in aluminium carbon light heat-insulation brick, leave many holes and improve the heat-proof quality of brick, can further improve the intensity of brick by adding of these materials.
Adopt aluminium carbon light heat-insulation brick of the present invention, improve the working temperature of mineral hot furnace, also reduced the working temperature of refractory materials below furnace bottom brick fuel simultaneously, make bottom refractory no longer infiltrate brick fuel gap because distortion causes molten iron, thoroughly solve the generation that furnace of calcium carbide furnace bottom is rubescent, burn accident, thereby greatly save energy consumption and maintenance cost, made the life-span of furnace of calcium carbide furnace lining be increased to 7-8 by 3-5.
Embodiment
Embodiment 1: a kind of aluminium carbon light heat-insulation brick, is mainly prepared from by the raw material of following weight part: 60 ~ 75 parts of metallurgical cokes, 8 ~ 12 parts of alumina hollow balls, float 3 ~ 6 parts, pearl, 2 ~ 4 parts, polystyrene foam ball, 13 ~ 17 parts, resol.
Preparation method is as follows: by above raw material under normal temperature environment, stir, vibratory compaction, after 200 DEG C of bakings, burn till through 1250 DEG C of high temperature again, then ground finish forms.
Embodiment 2: a kind of aluminium carbon light heat-insulation brick, mainly be prepared from by the raw material of following weight part: 30 parts of the metallurgical cokes of 8-3mm, 16 parts of the metallurgical cokes of 3-0mm, 22 parts of <0.088mm metallurgical cokes, 10 parts of <0.5mm alumina hollow balls, <0.5mm floats 4 parts, pearl, 3 parts, <1mm polystyrene foam ball, 15 parts, resol.
Preparation method is as follows: above raw material is carried out to kneading at normal temperatures, first add mixed 3 minutes of metallurgical coke that particle diameter is 8-3mm, metallurgical coke that particle diameter is 3-0mm, add again resol mixed 5 minutes, then add the <0.088mm metallurgical coke, <0.5mm alumina hollow ball, the <0.5mm that are mixed in advance to float pearl, <1mm polystyrene foam ball mixed 20 minutes, ageing mixture after taking the dish out of the pot, the ageing mixture time is more than 8 hours.Then moulding, 35 DEG C of mold temperatures, forming pressure 2 minutes is then toasted 24 hours at 200 DEG C of temperature, burns till finally by 1250 DEG C of high temperature, and then ground finish forms.
Embodiment 3: a kind of aluminium carbon light heat-insulation brick, mainly be prepared from by the raw material of following weight part: 28 ~ 32 parts of the metallurgical cokes that particle diameter is 8-3mm, particle diameter is 14 ~ 18 parts of the metallurgical cokes of 3-0mm, 19 ~ 25 parts of <0.088mm metallurgical cokes, 8 ~ 12 parts of <0.5mm alumina hollow balls, <0.5mm floats 3 ~ 6 parts, pearl, 2 ~ 4 parts, <1mm polystyrene foam ball, 13 ~ 17 parts, resol.
Preparation method is as follows: above raw material is carried out to kneading at normal temperatures, first add mixed 3 minutes of metallurgical coke that particle diameter is 8-3mm, metallurgical coke that particle diameter is 3-0mm, add again resol mixed 5 minutes, then add the <0.088mm metallurgical coke, <0.5mm alumina hollow ball, the <0.5mm that are mixed in advance to float pearl, the mixed 15-20 minute of <1mm polystyrene foam ball, ageing mixture after taking the dish out of the pot, the ageing mixture time is more than 8 hours.Then moulding, mold temperature 35-36 DEG C, forming pressure 1-3 minute then toasts 24 hours at 200 DEG C of temperature, burns till finally by 1250 DEG C of high temperature, and then ground finish forms.
Embodiment 4: a kind of aluminium carbon light heat-insulation brick, mainly be prepared from by the raw material of following weight part: 28 parts of the metallurgical cokes that particle diameter is 8-3mm, particle diameter is 18 parts of the metallurgical cokes of 3-0mm, 19 parts of <0.088mm metallurgical cokes, 12 parts of <0.5mm alumina hollow balls, <0.5mm floats 6 parts, pearl, 2 parts, <1mm polystyrene foam ball, 13 parts, resol.
Other are with embodiment 3.
Embodiment 5: a kind of aluminium carbon light heat-insulation brick, mainly be prepared from by the raw material of following weight part: 32 parts of the metallurgical cokes that particle diameter is 8-3mm, particle diameter is 14 parts of the metallurgical cokes of 3-0mm, 25 parts of <0.088mm metallurgical cokes, 8 parts of <0.5mm alumina hollow balls, <0.5mm floats 3 parts, pearl, 4 parts, <1mm polystyrene foam ball, 17 parts, resol.
Other are with embodiment 3.
Claims (1)
1. an aluminium carbon light heat-insulation brick, it is characterized in that concrete preparation method is as follows: raw material is carried out to kneading at normal temperatures, first add particle diameter and be 30 parts of the metallurgical cokes of 8-3mm, particle diameter is mixed 3 minutes of 16 parts of the metallurgical cokes of 3-0mm, adding 15 parts, resol mixes 5 minutes again, then add 22 parts of the <0.088mm metallurgical cokes that are mixed in advance, 10 parts of <0.5mm alumina hollow balls, <0.5mm floats 4 parts, pearl, 3 parts of mixed 15-20 minute of <1mm polystyrene foam ball, ageing mixture after taking the dish out of the pot, the ageing mixture time is more than 8 hours, then moulding, mold temperature 35-36 DEG C, forming pressure 1-3 minute then toasts 24 hours at 200 DEG C of temperature, burns till finally by 1250 DEG C of high temperature, and then ground finish forms.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310010082.3A CN103044068B (en) | 2013-01-11 | 2013-01-11 | Aluminum-carbon light insulating brick |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310010082.3A CN103044068B (en) | 2013-01-11 | 2013-01-11 | Aluminum-carbon light insulating brick |
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| CN103044068A CN103044068A (en) | 2013-04-17 |
| CN103044068B true CN103044068B (en) | 2014-07-30 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1170752A (en) * | 1996-06-21 | 1998-01-21 | 安姆科尔国际公司 | Combustible carbonaceous composition and method for production |
| CN1673085A (en) * | 2005-01-26 | 2005-09-28 | 中国科学院上海硅酸盐研究所 | Hollow alumina ball preparing process based on wet chemical method |
| CN1944328A (en) * | 2006-08-04 | 2007-04-11 | 郑州华宇耐火材料有限公司 | Novel moulded light carbon brick and its producing method |
| CN101617090A (en) * | 2006-12-01 | 2009-12-30 | 奥克塔伊·库特卢 | Insulating light wall building elements |
| CN102167622A (en) * | 2011-01-21 | 2011-08-31 | 武汉科技大学 | Aluminum-silicon light heat insulation brick and preparation method thereof |
| CN102503483A (en) * | 2011-11-03 | 2012-06-20 | 三门峡三键炭材料科技有限公司 | Carbon brick |
-
2013
- 2013-01-11 CN CN201310010082.3A patent/CN103044068B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1170752A (en) * | 1996-06-21 | 1998-01-21 | 安姆科尔国际公司 | Combustible carbonaceous composition and method for production |
| CN1673085A (en) * | 2005-01-26 | 2005-09-28 | 中国科学院上海硅酸盐研究所 | Hollow alumina ball preparing process based on wet chemical method |
| CN1944328A (en) * | 2006-08-04 | 2007-04-11 | 郑州华宇耐火材料有限公司 | Novel moulded light carbon brick and its producing method |
| CN101617090A (en) * | 2006-12-01 | 2009-12-30 | 奥克塔伊·库特卢 | Insulating light wall building elements |
| CN102167622A (en) * | 2011-01-21 | 2011-08-31 | 武汉科技大学 | Aluminum-silicon light heat insulation brick and preparation method thereof |
| CN102503483A (en) * | 2011-11-03 | 2012-06-20 | 三门峡三键炭材料科技有限公司 | Carbon brick |
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| CN103044068A (en) | 2013-04-17 |
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