CN100557166C - A kind of ladle bottom construction method - Google Patents
A kind of ladle bottom construction method Download PDFInfo
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- CN100557166C CN100557166C CNB2007100525762A CN200710052576A CN100557166C CN 100557166 C CN100557166 C CN 100557166C CN B2007100525762 A CNB2007100525762 A CN B2007100525762A CN 200710052576 A CN200710052576 A CN 200710052576A CN 100557166 C CN100557166 C CN 100557166C
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Abstract
A kind of ladle bottom construction method the present invention relates to building method at the bottom of a kind of ladle bag, and particularly a kind of being applicable to used the ladle of high-alumina brick as bag end working lining.This ladle bottom construction method, it is divided into the bag wall at the bottom of with the ladle bag, bag end impact zone and mouth of a river district, wherein, bag end impact zone accounts for whole bag floor space 3/5, arrange at this impact zone simultaneously and be provided with the piling brick, build bag by laying bricks or stones and begin to put down the end to the ladle wall zone from mouth of a river district in the end, the brick reservation to air brick cheated the ventilative brick cup of periphery back installation at the bottom of jar, and to make by jar end brick one side parallel with jar end brick, interspace in advance between bag is respectively built by laying bricks or stones at the end, self-flowing material cast is adopted in its gap, after baking again with the thickening material thickening bag end.Brought up to 116 the application life of brick at the bottom of the technology of the present invention bag, improved 28.9%.Compared with prior art, the loss per ton steel of anti-material decline 0.2-0.3 kilogram, ton steel cost on average can reduce by 1.5 yuan.
Description
Technical field
The present invention relates to building method at the bottom of a kind of ladle bag, belong to the building method of casting melt substance container lining, particularly a kind of being applicable to used the ladle of high-alumina brick as bag end working lining.
Background technology
Those skilled in the art are fully aware of, and building by laying bricks or stones at the bottom of the ladle bag is the part that ladle is built by laying bricks or stones, and it builds the bulk life time that the effect quality directly influences ladle by laying bricks or stones.In the prior art, use two kinds of brick types at the bottom of the ladle bag, A:300mm*180mm*80mm and B:300mm*240mm*80mm. build the bag end by laying bricks or stones and begin to put down at the end from the mouth of a river, build with A brick side, and the molten steel impact zone is perpendicular to be built, side build with perpendicular the block between with 2 row B block sides block transition.Jar end is brick reserve near the hole to air brick after, ventilative brick cup is installed, require it to lean on jar at the bottom of a side of brick parallel with jar end brick.Reserve 80～120mm space around the air brick, the self-flowing material cast is adopted in its gap, and it is tight to vibrate with vibrating head.After the baking of bag end brick, again with the pours thickening bag end.
Building method at the bottom of this ladle bag, its drawback is: being equivalent to wrap the end has only double-layer structure, the bag end, is too smooth, the thickening pours can't be taken off tight working lining, influences the result of use of thickening material, causes leaning on the brick of wall working lining to fall easily near the working lining mouth of a river, bottom, the brick of impact zone is formed pit later on easily by molten steel scouring, end operational layer brick does not reach instructions for use, and the safety of use can not get guaranteeing, influences application life.Simultaneously, the intensity of pours is not high, and anti-molten steel scouring power is not strong, the life-span of influence bag end brick, makes the consumption of refractory material increase yet, and cost rises.
Summary of the invention
The object of the invention provides a kind of bag end brick that can alleviate and corrodes, and improves ladle life, and building method at the bottom of the ladle bag of reduction refractory consumption to reduce production costs, is increased economic efficiency.
In order to realize purpose of the present invention, the present invention takes following technical measures:
This ladle bottom construction method, it is divided into impact zone and mouth of a river district at the bottom of Bao Bi, the bag end jar, wherein at the bottom of with the ladle bag, impacts accounting for whole bag floor space at the bottom of the bag end jar
Arrange at this impact zone simultaneously and be provided with high 350mm, long 300mm, thick 80mm piling brick, build bag by laying bricks or stones and begin to put down the end to the ladle wall zone from mouth of a river district in the end, brickly at the bottom of jar reserve periphery back, hole to air brick ventilative brick cup is installed, and will make by jar end brick one side parallelly, interspace in advance between respectively building by laying bricks or stones wrapping the end with jar end brick, the self-flowing material cast is adopted in its gap, uses the thickening material thickening bag end after baking again.
A kind of ladle bottom construction method of the present invention at first is to build bag by laying bricks or stones to begin to put down at the end from the mouth of a river in the end, uses high 180mm, long 300mm, the high 180mm of two rows is successively built in the brick mouth of a river and the ladle wall zone of building of thick 80mm by laying bricks or stones between the mouth of a river and the air brick, long 300mm, the brick of thick 80mm, the high 240mm of three rows, long 300mm, the brick of thick 80mm and the high 300mm of two rows, long 300mm, the brick of thick 80mm, at the high 180mm of the 2nd row, long 300mm distinguishes the high 350mm of masonry block along mouth of a river square brick 1 center line both sides on the brick of thick 80mm, long 300mm, the brick of thick 80mm, and the high 240mm of the 1st row, long 300mm, build 1 high 1800mm in the middle of the brick of thick 80mm by laying bricks or stones, long 300mm, the brick of thick 80mm, the 2nd, the high 240mm of 3 rows, long 300mm, the brick of thick 80mm is then built 1 high 350mm, long 300mm, the brick of thick 80mm by laying bricks or stones every two, the high 300mm of jar end impact zone, long 300mm, the brick of thick 80mm built, and alternately disperses to build by laying bricks or stones 5 high 350mm simultaneously, long 300mm, the brick of thick 80mm uses as piling.
Masonry method at the bottom of a kind of ladle bag of the present invention is to reserve the 80-120mm space around air brick, and the self-flowing material cast is adopted in its gap, and it is tight to vibrate with oscillating column pump, its physical and chemical parameter of self-flowing material: Al
2O
3〉=90.0%, the line rate of change is 0～+ 0.5% under 1500 ℃ * 3h state, bulk density under 1100 ℃ * 24h state 〉=3.20g/cm
3, rupture strength under 1500 ℃ * 3h state 〉=12Mpa.Masonry method at the bottom of a kind of ladle bag of the present invention, be adopt add raw material, its physical and chemical parameter: Al
2O
3〉=70.0%, the line rate of change is 0～+ 0.5% under 1600 ℃ * 3h state, bulk density under 1100 ℃ * 24h state 〉=2.80g/cm
3, compressive resistance under 1100 ℃ * 24h state 〉=30Mpa.
The advantage that compared with prior art the present invention had is 1) with the impact zone expanded range, avoid being subjected to the molten steel impact fracture at end brick in the tapping process near impact zone; 2) adopt piling to build by laying bricks or stones around the mouth of a river and air brick, piling is built the normal brick of aspect ratio of brick by laying bricks or stones and is wanted more than the high 50mm, and the piling brick is inserted in the thickening material, guarantees that the thickening material is not easy to peel off; 3) piling is built brick by laying bricks or stones and is distributed between the mouth of a river and the air brick and impact zone, can give prominence to the bag sandwich construction at the end; 4) use high-intensity thickening material, can bear washing away of molten steel when guaranteeing high temperature.
Because shock zone obtains enlarging, " piling " is built by laying bricks or stones to help thickening and is expected to take off better on bag end brick, is not easy to come off, the intensity of adding the thickening material improves, influence to bag end brick in the tapping process reduces, and has improved the application life of bag end brick, has reduced cost of production.Be 90 the application life of brick at the bottom of the prior art bag, and brought up to 116 the application life of brick at the bottom of the technology of the present invention bag, improved 28.9%.Compared with prior art, the loss per ton steel of anti-material decline 0.2-0.3 kilogram, ton steel cost on average can reduce by 1.5 yuan.
Description of drawings
Accompanying drawing 1 is built figure by laying bricks or stones at the bottom of the bag of the present invention
Among the figure, the mouth of a river 1, bag wall 2, air brick 3, brick 4, brick 5, brick 6, brick 7, impact zone 8.
The specific embodiment
Building method example at the bottom of the ladle bag of the present invention is:
1) build the bag end by laying bricks or stones and 1 begin to put down at the end from the mouth of a river, use high 180mm, long 300mm, the brick 7 of thick 80mm build the mouth of a river and ladle wall 2 zones by laying bricks or stones.
2) successively build two row's bricks 7, the high 240mm of three rows between the mouth of a river 1 and the air brick 3 by laying bricks or stones, long 300mm, the brick 6 of thick 80mm and the high 300mm of two rows, long 300mm, the brick 4 of thick 80mm.On the 2nd row's brick 7, build 1 high 350mm respectively by laying bricks or stones along square brick center line both sides, the mouth of a river, long 300mm, the brick 5 of thick 80mm.Then build 1 brick 5 by laying bricks or stones and build 1 brick, 7, the 2,3 rows in the middle of first row's brick 6 by laying bricks or stones every two.
3) a jar end impact zone is built by laying bricks or stones with brick 4, alternately disperses to build 5 bricks 5 by laying bricks or stones simultaneously and uses as piling.
4) jar end brick reserve near the hole to air brick after, ventilative brick cup is installed, require it to lean on jar at the bottom of a side of brick parallel with jar end brick.Reserve 80～120mm space around the air brick, the self-flowing material cast is adopted in its gap, and it is tight to vibrate with vibrating head.The cover brick must not be moved in the process of vibrating.
5) bag is thickeied with following high-intensity thickening material and is wrapped at the end after brick toast at the end.Thickening cookingization index is as follows: Al
2O
3〉=70.0%, the line rate of change (1600 ℃ * 3h) be 0～+ 0.5%, bulk density (1100 ℃ * 24h) 〉=2.80g/cm3, compressive resistance (1100 ℃ * 24h) 〉=30Mpa.
6) self-flowing material of the present invention adopts fused white corundum, sodium phosphate, adhesive to form, and percentage by weight is 85: 8: 7.
7) the present invention thickeies corundum, compound ultra micro powder, adhesive composition in the material employing densification, and percentage by weight is 90: 7.8: 2.2.
Claims (4)
1. ladle bottom construction method, it is divided into impact zone (8) and mouth of a river district at the bottom of bag wall (2), the bag end jar at the bottom of with the ladle bag, wherein, wrap end jar at the bottom of impact zone (8) account for whole bag floor space
Arrange at this impact zone (8) simultaneously and be provided with high 350mm, long 300mm, thick 80mm piling brick (5), build bag by laying bricks or stones and begin to put down the end from mouth of a river district to ladle wall (2) zone in the end, brickly at the bottom of jar reserve periphery back, hole to air brick (3) ventilative brick cup is installed, and will make by jar end brick one side parallelly, interspace in advance between respectively building by laying bricks or stones wrapping the end with jar end brick, the self-flowing material cast is adopted in its gap, uses the thickening material thickening bag end after baking again.
2. by the described a kind of ladle bottom construction method of claim 1, it is characterized in that: (1) begins to put down at the end from the mouth of a river to build the bag end by laying bricks or stones, use high 180mm, long 300mm, the brick of thick 80mm (7) is built the mouth of a river and ladle wall (2) zone by laying bricks or stones, successively build the high 180mm of two rows between the mouth of a river (1) and the air brick (3) by laying bricks or stones, long 300mm, the brick of thick 80mm (7), the high 240mm of three rows, long 300mm, the brick of thick 80mm (6) and the high 300mm of two rows, long 300mm, the brick of thick 80mm (4), at the high 180mm of the 2nd row, long 300mm, the brick of thick 80mm (7) is gone up and is built 1 high 350mm respectively by laying bricks or stones along square brick center line both sides, the mouth of a river, long 300mm, the piling brick (5) of thick 80mm, and the high 240mm of the 1st row, long 300mm, build 1 high 180mm in the middle of the brick of thick 80mm (6) by laying bricks or stones, long 300mm, the brick of thick 80mm (7), the 2nd, the high 240mm of 3 rows, long 300mm, the brick of thick 80mm (6) is then built 1 high 350mm by laying bricks or stones, long 300mm, the piling brick (5) of thick 80mm every two, the high 300mm of jar end impact zone, long 300mm, the brick of thick 80mm (4) is built by laying bricks or stones, alternately disperses to build by laying bricks or stones 5 high 350mm simultaneously, long 300mm, the piling brick (5) of thick 80mm uses as piling.
3. by the described a kind of ladle bottom construction method of claim 1, it is characterized in that: reserve the 80-120mm space on every side at air brick (3), the self-flowing material cast is adopted in its gap, and it is tight to vibrate with oscillating column pump, its physical and chemical parameter of self-flowing material: Al
2O
3〉=90.0%, the line rate of change is 0～+ 0.5% under 1500 ℃ * 3h state, bulk density under 1100 ℃ * 24h state 〉=3.20g/cm
3, rupture strength under 1500 ℃ * 3h state 〉=12Mpa.
4. by the described a kind of ladle bottom construction method of claim 1, it is characterized in that: described thickening material, its physical and chemical parameter: Al
2O
3〉=70.0%, the line rate of change is 0～+ 0.5% under 1600 ℃ * 3h state, bulk density under 1100 ℃ * 24h state 〉=2.80g/cm
3, compressive resistance under 1100 ℃ * 24h state 〉=30Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100525762A CN100557166C (en) | 2007-06-28 | 2007-06-28 | A kind of ladle bottom construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100525762A CN100557166C (en) | 2007-06-28 | 2007-06-28 | A kind of ladle bottom construction method |
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| Publication Number | Publication Date |
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| CN101117851A CN101117851A (en) | 2008-02-06 |
| CN100557166C true CN100557166C (en) | 2009-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100525762A Expired - Fee Related CN100557166C (en) | 2007-06-28 | 2007-06-28 | A kind of ladle bottom construction method |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700572B (en) * | 2009-11-20 | 2011-08-03 | 武汉钢铁(集团)公司 | Method for building container bottom of carbon-containing molten steel container |
| CN101979188B (en) * | 2010-09-29 | 2012-07-18 | 山西太钢不锈钢股份有限公司 | Method for building bottom of molten steel tank |
| CN102500753A (en) * | 2011-12-02 | 2012-06-20 | 中冶宝钢技术服务有限公司 | Brick building process of bottom of steel ladle |
| CN103157783B (en) * | 2011-12-19 | 2015-09-02 | 攀钢集团攀枝花钢钒有限公司 | A kind of building method of bottom of steel ladle |
| CN112024834A (en) * | 2020-09-01 | 2020-12-04 | 三鑫重工机械有限公司 | 4D printing system for steel ingot production |
| CN113020582A (en) * | 2021-03-02 | 2021-06-25 | 中冶宝钢技术服务有限公司 | Ladle bottom structure, installation and maintenance process thereof |
| CN114543534A (en) * | 2022-03-16 | 2022-05-27 | 包头钢铁（集团）有限责任公司 | Building method of external wall refractory material of Maerz kiln suspension cylinder |
| CN115301936B (en) * | 2022-08-08 | 2024-03-19 | 阳春新钢铁有限责任公司 | Ladle bottom masonry process for reducing residual steel of ladle |
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- 2007-06-28 CN CNB2007100525762A patent/CN100557166C/en not_active Expired - Fee Related
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| CN101117851A (en) | 2008-02-06 |
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