CN108971470B - Novel steel ladle and masonry method thereof - Google Patents
Novel steel ladle and masonry method thereof Download PDFInfo
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- CN108971470B CN108971470B CN201811045746.9A CN201811045746A CN108971470B CN 108971470 B CN108971470 B CN 108971470B CN 201811045746 A CN201811045746 A CN 201811045746A CN 108971470 B CN108971470 B CN 108971470B
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- ladle
- bricks
- safety
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 50
- 239000010959 steel Substances 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000011449 brick Substances 0.000 claims abstract description 105
- 238000005266 casting Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 16
- 239000004927 clay Substances 0.000 claims description 14
- RWDBMHZWXLUGIB-UHFFFAOYSA-N [C].[Mg] Chemical compound [C].[Mg] RWDBMHZWXLUGIB-UHFFFAOYSA-N 0.000 claims description 3
- 235000014121 butter Nutrition 0.000 claims description 3
- 239000003575 carbonaceous material Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 239000011819 refractory material Substances 0.000 abstract description 5
- 239000004568 cement Substances 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000011812 mixed powder Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000004571 lime Chemical group 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Chemical group 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a novel steel ladle and a masonry method thereof, comprising a steel shell, a permanent layer, a safety layer, a water gap pocket brick, an air brick, a ladle bottom non-impact area, a ladle bottom impact area, a working layer and a ladle opening, wherein the ladle bottom impact area is arranged in the middle of the bottom of the steel shell, the ladle bottom impact area is arranged at the edge of the ladle bottom non-impact area, the water gap pocket brick and the air brick are built in the ladle bottom non-impact area, the permanent layer is arranged on the inner side wall of the steel shell, the safety layer is arranged on the permanent layer, the working layer is arranged on the safety layer, the ladle opening is arranged at the tops of the permanent layer and the working layer of the safety layer, the safety layer is built in an arc brick ring shape, the ladle bottom non-impact area and the ladle bottom impact area are built by adopting straight bricks, the working layer bricks are built by adopting vertical wide wedge bricks, and gaps between the safety layer and the working layer are filled with cement; the safety layer can be recycled, only the corroded part is repaired each time the steel ladle is taken down, the consumption of steel ladle refractory materials is reduced, the safety use coefficient of the steel ladle can be effectively improved, and the steel ladle thermal state judgment is convenient.
Description
Technical Field
The invention relates to the field of metallurgical equipment, in particular to a novel ladle and a masonry method thereof.
Background
The ladle is used as equipment for containing high-temperature molten steel, and the safe operation of the ladle is important. At present, the steel ladle lining mostly adopts a heat preservation layer, a permanent layer and a working layer structure, and some steel ladles adopt the permanent layer and the working layer structure. The common steel ladle consists of a steel shell, a heat preservation layer, a permanent layer, a nozzle pocket brick, an air brick, a ladle bottom non-impact area, a ladle bottom impact area, a working layer and a ladle opening. With the increase of the use times of the steel ladle, the working layer, the ladle bottom impact area and the ladle bottom non-impact area are corroded by molten steel, stirred and flushed, the thickness is gradually reduced, and the safety risk is gradually increased.
Disclosure of Invention
The invention aims to provide a novel steel ladle and a masonry method thereof aiming at the defects of the prior art, and a safe layer can be recycled, so that only the corroded part is repaired each time the steel ladle is taken down, the consumption of steel ladle refractory materials is reduced, the safe use coefficient of the steel ladle can be effectively improved, and the steel ladle thermal state judgment is convenient.
In order to achieve the above object, the present invention is achieved by the following technical scheme.
The novel steel ladle comprises a steel shell, a permanent layer, a safety layer, a water gap pocket brick, an air brick, a bottom non-impact area, a bottom impact area, a working layer and a ladle opening, wherein the bottom impact area is arranged in the middle of the bottom of the steel shell, the bottom non-impact area is arranged at the edge of the bottom impact area, the water gap pocket brick and the air brick are built in the bottom non-impact area, the permanent layer is arranged on the inner side wall of the steel shell, the safety layer is arranged on the permanent layer, the working layer is arranged on the safety layer, the ladle opening is arranged at the tops of the permanent layer and the working layer of the safety layer, the safety layer is built in an arc brick ring shape, the bottom non-impact area and the bottom impact area are built by adopting straight bricks, the working layer bricks are built by adopting vertical wide wedge bricks, and gaps between the safety layer and the working layer are filled with cement;
the two side surfaces of the arc-shaped brick in the length direction are arc surfaces, and the radian of the section of the arc surface is pi/6;
The straight brick is a rectangular brick, and the ratio of the length to the width to the height is 2.5:4:7, preparing a base material;
the top surface and the bottom surface of wedge brick are rectangle, and the width of top surface and bottom surface is the same, the top surface length of wedge brick: top width: bottom surface length: bottom width: the heights were 4.5:2.5:2.5:2.5:4.8.
A novel ladle masonry method comprises the following steps:
firstly, placing and fixing a nozzle pocket brick and an air brick die, adopting a permanent layer casting material to cast a ladle bottom, and using Vibrating the vibrating rod to form, naturally maintaining the permanent layer with the thickness of 100-200mm for 8-16h, and demolding the nozzle pocket brick and the air brick moulding bed;
Secondly, casting and forming a wall-covering permanent layer, coating butter on the surface of a tire mold of the wall-covering permanent layer, pouring the wall-covering permanent layer casting material from the periphery between the tire mold and the steel shell, and using the wall-covering permanent layer with the thickness of 60-120mm Vibrating the vibrating rod to form, naturally curing for 24 hours, and hanging into a ladle to be assembled;
Thirdly, leveling the periphery of the permanent layer at the bottom of the bag, and starting to build arc-shaped bricks of the safety layer, wherein the arc-shaped bricks of the safety layer are made of magnesium carbon materials, each layer of arc-shaped bricks are built in a ring shape, the safety layer is built close to the permanent layer of the bag wall during building, gaps between the safety layer and the permanent layer of the bag wall are filled with fire clay, and the flat joints and vertical joints of the safety layer are less than or equal to 1mm;
fourthly, building a non-impact area and an impact area of the bottom of the bag by a safe layer after building for 1m-1.5m, building by adopting straight bricks, installing nozzle pocket bricks and air bricks at corresponding positions, building the bottom of the bag from the periphery of the air bricks, and using bottom broken bricks for clamping between the bottom brick and the safe layer, filling gaps by permanent layer casting materials, and leveling the periphery of the bottom brick;
Fifthly, a working layer is built, the working layer is built by adopting vertical width wedge-shaped bricks in an annular mode, the horizontal joints and vertical joints of the bricks of the working layer are less than or equal to 1mm, and gaps between the working layer and the safety layer are filled with fire clay;
Step six, alternately building a safety layer and a working layer upwards until the position of the wrapping opening is reached;
seventh, the ladle opening is formed by casting with casting materials.
According to the novel steel ladle and the masonry method thereof, the safe layer can be recycled, only the corroded part is repaired each time the steel ladle is taken off, the consumption of steel ladle refractory materials is reduced, the safe use coefficient of the steel ladle can be effectively improved, and the steel ladle thermal state judgment is convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the arc brick of the present invention;
FIG. 3 is a schematic view of the structure of the straight brick of the present invention;
FIG. 4 is a schematic view of the wedge-shaped brick of the present invention;
In the figure: 1. a steel shell; 2. a permanent layer; 3. a security layer; 4. a nozzle pocket block; 5. an air brick; 6. a sole non-impact region; 7. a sole-covered impact zone; 8. a working layer; 9. and (5) wrapping the mouth.
Detailed Description
The invention is further illustrated, but is not limited to, the following examples.
As shown in the figure: the novel ladle comprises a steel shell 1, a permanent layer 2, a safety layer 3, a water gap pocket brick 4, an air brick 5, a ladle bottom non-impact area 6, a ladle bottom impact area 7, a working layer 8 and a ladle opening 9, wherein the ladle bottom impact area 7 is arranged in the middle of the bottom of the steel shell 1, the ladle bottom non-impact area 6 is arranged at the edge of the ladle bottom impact area 7, the water gap pocket brick 4 and the air brick 5 are built in the ladle bottom non-impact area 6, the permanent layer 2 is arranged on the inner side wall of the steel shell 1, the safety layer 3 is arranged on the permanent layer 2, the working layer 8 is arranged on the safety layer 3, the ladle opening 9 is arranged at the top of the working layer 8 of the permanent layer 2 and the safety layer 3,
The safety layer 2 is built by adopting arc-shaped bricks (figure 2), the non-impact area 6 at the bottom of the bag and the impact area 7 at the bottom of the bag are built by adopting straight bricks (figure 3), the brick at the working layer 8 is built by adopting vertical wide wedge-shaped bricks (figure 4), and the pouring material is adopted as the bag opening 9. The gap between the safety layer 3 and the working layer 8 is filled with fire clay. The fireclay is mixed powder of refractory clay and clay clinker (or waste clay brick). Also known as refractory mortar. Generally refers to a mixed powder of refractory clay and clay clinker (or waste clay bricks). The clinker may be partially or completely replaced with sand, silica, lime mudstone, etc. A small amount of water glass is sometimes added as an adhesive. The building kiln is used as cementing material for building clay refractory bricks.
The two side surfaces of the arc-shaped brick along the length direction are cambered surfaces, the other surfaces are planes, and the radian of the section of the cambered surface is pi/6.
The straight brick is a rectangular brick, and the ratio of the length to the width to the height is 2.5:4:7.
The upper bottom surface and the lower bottom surface of the wedge-shaped brick are rectangular, the widths of the upper bottom surface and the lower bottom surface are the same, and the length of the upper bottom surface of the wedge-shaped brick is as follows: width of upper bottom surface: length of lower bottom surface: width of lower bottom surface: the heights were 4.5:2.5:2.5:2.5:4.8.
The building method comprises the following steps:
firstly, placing and fixing a nozzle pocket brick and an air brick die, adopting a permanent layer casting material to cast a ladle bottom, and using Vibrating the vibrating rod to form, naturally maintaining the permanent layer with the thickness of 100-200mm for 8-16h, and demolding the nozzle pocket brick and the air brick moulding bed;
Secondly, casting and forming a wall-covering permanent layer, coating butter on the surface of a tire mold of the wall-covering permanent layer, pouring the wall-covering permanent layer casting material from the periphery between the tire mold and the steel shell, and using the wall-covering permanent layer with the thickness of 60-120mm Vibrating the vibrating rod to form, naturally curing for 24 hours, and hanging into a ladle to be assembled;
Thirdly, leveling the periphery of the permanent layer at the bottom of the bag, and starting to build arc-shaped bricks of the safety layer, wherein the arc-shaped bricks of the safety layer are made of magnesium carbon materials, each layer of arc-shaped bricks are built in a ring shape, the safety layer is built close to the permanent layer of the bag wall during building, gaps between the safety layer and the permanent layer of the bag wall are filled with fire clay, and the flat joints and vertical joints of the safety layer are less than or equal to 1mm;
fourthly, building a non-impact area and an impact area of the bottom of the bag by a safe layer after building for 1m-1.5m, building by adopting straight bricks, installing nozzle pocket bricks and air bricks at corresponding positions, building the bottom of the bag from the periphery of the air bricks, and using bottom broken bricks for clamping between the bottom brick and the safe layer, filling gaps by permanent layer casting materials, and leveling the periphery of the bottom brick;
Fifthly, a working layer is built, the working layer is built by adopting vertical width wedge-shaped bricks in an annular mode, the horizontal joints and vertical joints of the bricks of the working layer are less than or equal to 1mm, and gaps between the working layer and the safety layer are filled with fire clay;
Step six, alternately building a safety layer and a working layer upwards until the position of the wrapping opening is reached;
seventh, the ladle opening is formed by casting with casting materials.
The invention has the advantages that:
The thickness of the first layer of safety layer bricks can be flexibly designed according to the requirements, so that the vertical seams and the horizontal seams of the safety layer and the working layer are staggered, the molten steel permeation path is prolonged, and the safety coefficient is improved. When the residual thickness of the working layer is less than or equal to 30mm, the working layer is likely to fall off under the action of the hydrostatic pressure of molten steel, and due to the fact that the section difference between the safety layer and the working layer is large, ladle hot repair personnel can easily observe that the safety layer at the falling part is exposed, and make a ladle offline judgment result, so that the safety risk is effectively reduced.
By adopting the method, the safety layer can be recycled, and only the corroded part is repaired each time the steel ladle is taken down, so that the consumption of steel ladle refractory materials is reduced.
According to the novel steel ladle and the masonry method thereof, the safe layer can be recycled, only the corroded part is repaired each time the steel ladle is taken off, the consumption of steel ladle refractory materials is reduced, the safe use coefficient of the steel ladle can be effectively improved, and the steel ladle thermal state judgment is convenient.
It should be understood that the above-described embodiments of the present invention are provided by way of example only and are not intended to limit the scope of the invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. Not all embodiments are exhaustive. All obvious changes or modifications which come within the spirit of the invention are desired to be protected.
Claims (2)
1. The utility model provides a novel ladle, it includes steel casing (1), permanent layer (2), inlayer (3), mouth of a river pocket brick (4), air brick (5), non-impact zone (6) at the bottom of package, impact zone (7) at the bottom of package, working layer (8), package mouth (9), the centre of the bottom of steel casing (1) is at the bottom of package impact zone (7), the edge of impact zone (7) at the bottom of package is non-impact zone (6) at the bottom of package, it has mouth of a river pocket brick (4) to build in non-impact zone (6) at the bottom of package, air brick (5), be provided with permanent layer (2) on the inside wall of steel casing (1), be provided with inlayer (3) on permanent layer (2), be provided with working layer (8) on the inlayer (3), package mouth (9) set up at the top of permanent layer (2), working layer (8) at safety layer (3), its characterized in that: the safety layer (2) is built by adopting arc-shaped bricks in an annular manner, the non-impact area (6) at the bottom of the bag and the impact area (7) at the bottom of the bag are built by adopting straight bricks, the bricks at the working layer (8) are built by adopting vertical wide wedge-shaped bricks, and a gap between the safety layer (3) and the working layer (8) is filled with fireclay;
the two side surfaces of the arc-shaped brick in the length direction are arc surfaces, and the radian of the section of the arc surface is pi/6;
The straight brick is a rectangular brick, and the ratio of the length to the width to the height is 2.5:4:7, preparing a base material;
the top surface and the bottom surface of wedge brick are rectangle, and the width of top surface and bottom surface is the same, the top surface length of wedge brick: top width: bottom surface length: bottom width: the heights were 4.5:2.5:2.5:2.5:4.8.
2. The method for masonry of a new ladle according to claim 1, wherein: it comprises the following steps:
firstly, placing and fixing a nozzle pocket brick and an air brick die, adopting a permanent layer casting material to cast a ladle bottom, and using Vibrating the vibrating rod to form, naturally maintaining the permanent layer with the thickness of 100-200mm for 8-16h, and demolding the nozzle pocket brick and the air brick moulding bed;
Secondly, casting and forming a wall-covering permanent layer, coating butter on the surface of a tire mold of the wall-covering permanent layer, pouring the wall-covering permanent layer casting material from the periphery between the tire mold and the steel shell, and using the wall-covering permanent layer with the thickness of 60-120mm Vibrating the vibrating rod to form, naturally curing for 24 hours, and hanging into a ladle to be assembled;
Thirdly, leveling the periphery of the permanent layer at the bottom of the bag, and starting to build arc-shaped bricks of the safety layer, wherein the arc-shaped bricks of the safety layer are made of magnesium carbon materials, each layer of arc-shaped bricks are built in a ring shape, the safety layer is built close to the permanent layer of the bag wall during building, gaps between the safety layer and the permanent layer of the bag wall are filled with fire clay, and the flat joints and vertical joints of the safety layer are less than or equal to 1mm;
fourthly, building a non-impact area and an impact area of the bottom of the bag by a safe layer after building for 1m-1.5m, building by adopting straight bricks, installing nozzle pocket bricks and air bricks at corresponding positions, building the bottom of the bag from the periphery of the air bricks, and using bottom broken bricks for clamping between the bottom brick and the safe layer, filling gaps by permanent layer casting materials, and leveling the periphery of the bottom brick;
Fifthly, a working layer is built, the working layer is built by adopting vertical width wedge-shaped bricks in an annular mode, the horizontal joints and vertical joints of the bricks of the working layer are less than or equal to 1mm, and gaps between the working layer and the safety layer are filled with fire clay;
Step six, alternately building a safety layer and a working layer upwards until the position of the wrapping opening is reached;
seventh, the ladle opening is formed by casting with casting materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045746.9A CN108971470B (en) | 2018-09-07 | 2018-09-07 | Novel steel ladle and masonry method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811045746.9A CN108971470B (en) | 2018-09-07 | 2018-09-07 | Novel steel ladle and masonry method thereof |
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| Publication Number | Publication Date |
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| CN108971470A CN108971470A (en) | 2018-12-11 |
| CN108971470B true CN108971470B (en) | 2024-04-30 |
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| CN201811045746.9A Active CN108971470B (en) | 2018-09-07 | 2018-09-07 | Novel steel ladle and masonry method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112238218A (en) * | 2019-07-16 | 2021-01-19 | 新疆八一钢铁股份有限公司 | Tundish building method for building refractory materials with different heights on inner wall |
| CN111014634A (en) * | 2019-12-31 | 2020-04-17 | 广西玉柴机器股份有限公司 | Casting vermicular ladle building method |
| CN112264612B (en) * | 2020-09-30 | 2022-01-18 | 江苏沙钢集团有限公司 | Steel ladle masonry structure and steel ladle using method |
| CN112643018A (en) * | 2020-12-09 | 2021-04-13 | 攀枝花钢城集团有限公司 | Method for building long-life ladle bottom of ladle |
| CN114985715B (en) * | 2022-06-21 | 2023-11-17 | 芜湖新兴铸管有限责任公司 | Ladle equipment with multiple groups of air bricks and ladle smelting control method |
| 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 |
| CN116372150B (en) * | 2023-05-31 | 2023-09-08 | 亿川科技(成都)有限责任公司 | Automatic construction and beating system and method for ladle maintenance |
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| CN209272454U (en) * | 2018-09-07 | 2019-08-20 | 云南濮耐昆钢高温材料有限公司 | A kind of new-type ladle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015043452A1 (en) * | 2013-09-29 | 2015-04-02 | 武汉钢铁(集团)公司 | Method for improving use efficiency of smelting ladle, and smelting ladle of long service life and low material consumption |
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| KR20030048900A (en) * | 2001-12-13 | 2003-06-25 | 주식회사 포스코 | A ladle |
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| CN108971470A (en) | 2018-12-11 |
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Inventor after: Tang Bing Inventor after: Lu Zhiyan Inventor after: Zhang Xiangqian Inventor after: Yu Baotong Inventor after: Liu Xinsheng Inventor after: Chen Yong Inventor before: Tang Bing Inventor before: Zhang Xiangqian Inventor before: Yu Baotong Inventor before: Liu Xinsheng Inventor before: Chen Yong |
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