CN112743068B - Lining structure of steelmaking emergency ladle and its masonry method - Google Patents
Lining structure of steelmaking emergency ladle and its masonry method Download PDFInfo
- Publication number
- CN112743068B CN112743068B CN202110046937.2A CN202110046937A CN112743068B CN 112743068 B CN112743068 B CN 112743068B CN 202110046937 A CN202110046937 A CN 202110046937A CN 112743068 B CN112743068 B CN 112743068B
- Authority
- CN
- China
- Prior art keywords
- shell
- ladle
- steel
- layer
- aluminum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
- B22D41/02—Linings
-
- 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
- B22D41/023—Apparatus used for making or repairing linings
-
- 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
- B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
-
- 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 provides a lining structure of a steel ladle for steelmaking emergency and a masonry method thereof, which comprises a steel ladle, wherein the steel ladle comprises a ladle wall structure and a ladle bottom structure arranged at the bottom of the ladle wall structure, and the lining structure comprises a 'well' -shaped prefabricated member arranged inside the ladle wall structure, so that a steel block cooled in the steel ladle for emergency is convenient to pour out, and oxygen cutting is carried out along the position of a molten steel overflow port of an aluminum-magnesium prefabricated block, so that the steel block can be easily divided into seven steel blocks, the gas consumption is small, the time consumption is short, the cutting is convenient, the steel block is simply hoisted and carried by a crane during division, and the requirement of large-tonnage steel ladle steelmaking can be met.
Description
Technical Field
The invention relates to the technical field of metallurgy, in particular to a lining structure of a steel ladle for steelmaking emergency and a masonry method thereof.
Background
The steelmaking emergency ladle is used as an emergency ladle or used as a standby ladle for molten steel/molten iron centralized collection treatment in an accident state in a steelmaking area, such as the problem of unbalance of molten iron and molten steel in the initial production stage of many newly built steel plants at present or the failure of a continuous casting machine after converter molten steel enters the ladle, and the molten steel in the ladle can not be poured, so that the molten steel can be poured into the emergency ladle, and the molten steel is convenient to treat after cooling. The steel ladle does not participate in normal steelmaking operation, is only used for temporarily containing and storing molten steel, forms a large steel column or a large round lump steel block after the high-temperature molten steel is cooled in the steelmaking emergency steel ladle, the emergency steel ladle is turned over to pour out the steel block, the steel block is recycled, and the steel block is required to be cut into small steel blocks with proper sizes by adopting oxygen before being carried. The requirements on the masonry process and the service life of the steelmaking emergency ladle are different from those of the normal production ladle, and the steelmaking emergency ladle has only one service life. The emergency steel ladle in the prior art is built by adopting a single layer of universal arc-shaped bricks, and is directly built into a ladle wall and a ladle bottom by adopting clay bricks and yellow sand. The steel blocks in the small steel ladle emergency ladle are smaller, the cutting and carrying are relatively convenient, the structure can meet the use requirements, along with the development of metallurgical technology, the tonnage of the steel ladle is developed to be large, a large number of steel plants begin to use more than 200 tons of tonnage ladle for steelmaking, the steelmaking ladle of the Zhanjiang steel Limited company of Bao steel reaches 350 tons, and the prior art accident ladle can not meet the requirements of the current industry. .
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
Therefore, the technical problem to be solved by the invention is to overcome the defects that the emergency steel ladle in the prior art is simple in structure and the process of treating the cooled molten steel in the emergency steel ladle is complex, so that the lining structure of the steel-making emergency steel ladle and the masonry method thereof are provided.
In order to solve the technical problems, the invention provides a lining structure of a steel ladle for steelmaking emergency, which comprises a steel ladle, a lining structure and a steel ladle structure, wherein the steel ladle comprises a ladle wall structure and a ladle bottom structure arranged at the bottom of the ladle wall structure, and the lining structure comprises a 'well' -shaped prefabricated member arranged inside the ladle wall structure.
The lining structure of the steel ladle for steelmaking emergency comprises a cladding with a U-shaped longitudinal section, wherein a shell permanent layer is tightly attached to the inner side of the cladding, a shell working layer is arranged on the inner side of the shell permanent layer, a gap is reserved between the shell permanent layer and the shell working layer, the gap interval is 0-170mm, magnesia filler is filled in the gap, the shell permanent layer is made of high-alumina castable with the thickness of 110mm, and the shell working layer is built by adopting arc-shaped high-alumina bricks with the thickness of 100 mm.
The lining structure of the steel ladle for steelmaking emergency comprises a bottom shell, wherein a bottom permanent layer is arranged above the bottom shell, a bottom working layer is arranged above the bottom permanent layer, the bottom permanent layer is made of 200mm thick high-alumina castable, and the bottom working layer is vertically built by adopting 120mm thick square high-alumina bricks.
The steel ladle lining structure for steelmaking emergency is characterized in that the prefabricated member comprises two long prefabricated blocks and four short prefabricated blocks symmetrically arranged on two sides of the long prefabricated blocks, the long prefabricated blocks and the short prefabricated blocks are longitudinally divided into 4 or 5 identical prefabricated block units, the top of each prefabricated block unit is provided with a concave shape, the bottom of each prefabricated block unit is correspondingly provided with a convex shape to be embedded into a whole, and aluminum-magnesium refractory mortar is arranged at the joint.
As a preferable scheme of the lining structure of the steel ladle for steelmaking emergency, a molten steel overflow port with the length of 300mm multiplied by 300mm is reserved below the long precast block and the short precast block and near the bottom.
The invention aims to solve the other technical problem of building the steel ladle for steelmaking emergency and the lining structure thereof, thereby providing the following technical scheme that the lining structure of the steel ladle for steelmaking emergency is built by adopting high-alumina castable to vibrate and construct a permanent layer of a shell and a permanent layer of a bottom on the basis of a shell and a bottom shell, and baking is carried out after the construction;
The working layer of the shell and the working layer at the bottom are constructed by adopting high-alumina bricks, and the middle of the working layer of the shell and the permanent layer of the shell is filled while the working layer of the shell is constructed;
the prefabricated member units are built in a splicing way by adopting aluminum-magnesium refractory clay in the steel ladle to form a 'well' -shaped prefabricated member;
naturally standing for 24 hours.
As a preferable scheme of the method for building the lining structure of the steel ladle for steelmaking emergency, the permanent layer is constructed, the water addition amount is 7.5% of the mass of the castable, and the steel ladle is placed for 24 hours after construction.
As a preferable scheme of the method for building the lining structure of the steel ladle for steelmaking emergency, the steel ladle is baked by adopting a ladle roaster and a high-aluminum permanent layer castable heating curve with the highest temperature baking temperature of 400 ℃.
The construction method of the lining structure of the steel ladle for steelmaking emergency adopts a preferable scheme that the shell working layer is constructed by adopting arc-shaped high-alumina bricks, the arc-shaped high-alumina bricks are vertically constructed by adopting aluminum-magnesium refractory clay, and brick joints are controlled to be less than 2mm.
The construction method for the lining structure of the steel ladle for steelmaking emergency adopts a preferable scheme that square high-alumina bricks are adopted for construction of the bottom working layer, aluminum-magnesium refractory clay is adopted for construction of the construction, a slurry stirrer is adopted for stirring on site, the water adding amount of the aluminum-magnesium refractory clay is 25.0% of the mass of the aluminum-magnesium refractory clay, and brick joints are controlled to be smaller than 2mm.
The invention has the beneficial effects that when the steel making is abnormal, molten steel is poured into the middle groove of the long aluminum-magnesium precast block of the emergency steel ladle, uniformly flows into the emergency steel ladle through the molten steel overflow port, directly turns over the emergency steel ladle after the molten steel is cooled to form a large steel block, and the arc-shaped high-alumina bricks of the steel ladle wall working layer, the magnesia filler between the permanent layer and the working layer and the square high-alumina bricks of the ladle bottom working layer are poured out along with the accident steel block, so that the steel block is convenient to pour out, and oxygen cutting is carried out along the molten steel overflow port of the aluminum-magnesium precast block, so that the steel block is very easily divided into seven steel blocks, and the air consumption is small, the time consumption is short and the cutting is convenient during the division. The steel block is simply hoisted and carried by a crane.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic diagram of the overall structure of a lining structure of a steel ladle for steelmaking emergency provided by the invention;
FIG. 2 is a top view of a lining structure of a steel ladle for steelmaking emergency provided by the invention;
FIG. 3 is a half cross-sectional view of a lining structure of a steel ladle for steelmaking emergency provided by the invention;
FIG. 4 is a schematic diagram showing connection of the internal precast block units;
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Example 1
This embodiment provides a lining structure of a steel ladle for steelmaking emergency, as shown in fig. 1 to 4, comprising,
The ladle 100 comprises a ladle wall structure 101 and a ladle bottom structure 102 arranged at the bottom of the ladle wall structure 101, and a lining structure 200 comprising a "well" type preform 201 arranged inside the ladle wall structure 101.
The wall-covering structure 101 comprises a covering shell 101a with a U-shaped axial longitudinal section, a shell permanent layer 101b is closely arranged on the inner side of the covering shell 101a, a shell working layer 101d is arranged on the inner side of the shell permanent layer 101b, a gap 101c is reserved between the shell permanent layer 101b and the shell working layer 101d, the gap 101c is 0-170mm, magnesia filler is filled in the gap 101c, the shell permanent layer 101b is made of high-alumina casting materials with the thickness of 110mm, the shell working layer 101d is built by arc-shaped high-alumina bricks with the thickness of 100mm, the covering bottom structure 102 comprises a bottom shell 102a, a bottom permanent layer 102b is arranged above the bottom shell 102a, a bottom working layer 102c is arranged above the bottom permanent layer 102b, the bottom permanent layer 102b is made of high-alumina casting materials with the thickness of 200mm, and the bottom working layer 102c is vertically built by square high-alumina bricks with the thickness of 120 mm.
The high aluminum castable is cement-bonded castable taking high bauxite or mullite as a main raw material, the volume density is more than or equal to 2.45g/cm < 3 >, the Al2O3 is more than or equal to 60.00%, and the normal-temperature compressive strength is more than or equal to 30.0MPa. The high alumina castable is stirred by a strong stirrer on site, the water adding amount of the high alumina castable is 5.5-7.5% of the mass of the castable, vibration casting construction is adopted, the high alumina brick is formed by combining phosphate with high alumina bauxite as a main raw material with the high alumina brick, the arc degree of the arc-shaped high alumina brick of a ladle wall is the same as that of the ladle wall, the volume density is more than or equal to 2.45g/cm < 3 >, al2O3 is more than or equal to 65.00%, the normal-temperature compressive strength is more than or equal to 50.0MPa, the high alumina brick is constructed by adopting aluminum-magnesium refractory mud masonry on site, and magnesia filler is sintered or fused magnesia with MgO content of more than or equal to 92.00%, and is crushed into 0-3mm particles. The field is directly filled in a gap of 0-170mm between the permanent layer of the shell and the working layer.
The prefabricated member 201 comprises two long prefabricated blocks 201a and four short prefabricated blocks 201b symmetrically arranged on two sides of the long prefabricated blocks 201a, wherein the long prefabricated blocks 201a and the short prefabricated blocks 201b are longitudinally divided into 4 or 5 identical prefabricated block units 201c, the top of each prefabricated block unit 201c is provided with a concave 201c-1, the bottom of each prefabricated block unit 201c is correspondingly provided with a convex 201c-2 to be embedded into a whole, and aluminum-magnesium refractory mortar is arranged at the joint. The alumina-magnesia precast block is made up by using high-alumina bauxite or corundum as main raw material and adopting the processes of baking at above 400 deg.C before leaving factory, its volume density is greater than or equal to 2.65g/cm3, al2O3+ MgO is greater than or equal to 80.00%, normal-temp. compressive strength is greater than or equal to 30.0MPa, and the alumina-magnesia refractory mud is made up by using superfine bauxite clinker or corundum fine powder, adding high-quality magnesia and adding proper quantity of additive, and its binding breaking strength is greater than or equal to 2.0MPa. The aluminum-magnesium fire clay is stirred by a slurry stirrer on site, the water adding amount of the aluminum-magnesium fire clay is 21.0-25.0% of the mass of the aluminum-magnesium fire clay, and the slurry is constructed by adopting a slurry clamp.
A 300mm×300mm molten steel overflow port 202 is reserved below the long precast block 201a and the short precast block 201b near the bottom, so that molten steel can flow in the emergency ladle conveniently.
The steel block cutting device has the beneficial effects that the steel block cooled in the emergency steel ladle is convenient to pour, the steel block can be easily cut into seven steel blocks by oxygen cutting along the molten steel overflow port of the aluminum-magnesium precast block, the air consumption is small during cutting, the time consumption is short, the cutting is convenient, the steel block is hoisted by a crane, the transportation is simple, and the requirement of large-tonnage steel ladle steelmaking can be met.
Example 2
A method of masonry of a lining structure of a steel ladle for steelmaking emergency, as shown in fig. 1 to 4, comprising,
S1, on the basis of an enclosure and a bottom shell, vibrating construction is carried out on a shell permanent layer and a bottom permanent layer by adopting high-aluminum casting materials, and baking is carried out after construction;
S2, building the shell working layer and the bottom working layer by adopting high-alumina bricks, and filling gaps between the shell working layer and the shell permanent layer while constructing the shell working layer;
s3, splicing and building the prefabricated member unit in the steel ladle by adopting aluminum-magnesium refractory clay to form a 'well' -shaped prefabricated member;
S4, naturally standing for 24 hours.
And (3) constructing the permanent layer of the shell, vibrating the permanent layer of the shell by adopting high-aluminum casting materials, wherein the water addition amount is 7.5% of the mass of the casting materials, demoulding after the construction is completed and the permanent layer of the shell is placed for 24 hours, vibrating the permanent layer of the bottom, vibrating the permanent layer of the shell by adopting high-aluminum casting materials, wherein the water addition amount is 7.5% of the mass of the casting materials, and placing for 24 hours after the construction is completed.
And (3) baking the permanent layer castable, wherein a ladle roaster is adopted for baking the high-aluminum permanent layer castable with the highest temperature of 400 ℃.
The method comprises the steps of building square high-alumina bricks of a bottom working layer with the thickness of 120mm, adopting aluminum-magnesium fire clay to build, stirring on site by adopting a slurry stirrer, wherein the water adding amount of the aluminum-magnesium fire clay is 25.0% of the mass of the aluminum-magnesium fire clay, brick joints are controlled to be less than 2mm, building arc-shaped high-alumina bricks of a shell working layer with the thickness of 100mm, vertically building the arc-shaped high-alumina bricks, adopting the aluminum-magnesium fire clay to build, controlling the brick joints to be less than 2mm, forming gaps between the arc-shaped high-alumina bricks of the shell working layer and a permanent shell layer, and adopting magnesia filler in the gaps between the arc-shaped high-alumina bricks of the shell working layer and the permanent shell layer during the building construction of the arc-shaped high-alumina bricks.
The aluminum-magnesium refractory mortar is adopted for splicing the aluminum-magnesium long precast block and the aluminum-magnesium short precast block, and a 'well' -shaped precast structure is formed inside the steel ladle.
After the masonry construction is finished, the concrete is naturally placed for 24 hours for use.
When the steel making is abnormal, molten steel is poured into the middle groove of the long aluminum-magnesium precast block of the emergency steel ladle, uniformly flows into the emergency steel ladle through the molten steel overflow port, directly overturns the emergency steel ladle after the molten steel is cooled to form a large steel block, and the steel block is poured out along with the accident steel block by magnesia filler between the arc-shaped high-alumina brick of the working layer and the permanent layer of the steel ladle shell and the working layer and square high-alumina brick of the bottom working layer. Oxygen cutting is carried out along the position of the molten steel overflow port of the aluminum-magnesium precast block, the steel block is easily divided into seven steel blocks, the air consumption is small, the time consumption is short, the cutting is convenient, and the steel block is hoisted by a crane and is easy to carry.
The method is successfully tried in a 210T emergency ladle of a steel mill of Guangxi iron and steel group limited company, wherein an emergency ladle lining is built by a cladding, 110mm shell permanent layer high-alumina castable, 100mm shell working layer arc-shaped high-alumina bricks, 0-170mm gap magnesia filler, 200mm bottom permanent layer high-alumina castable and 120mm bottom working layer square high-alumina bricks, and the inside of the emergency ladle lining is built into a 'well' -type prefabricated member structure by splicing long aluminum-magnesium precast blocks and short aluminum-magnesium precast blocks.
It is important to note that the construction and arrangement of the application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of present application. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present applications. Therefore, the application is not limited to the specific embodiments, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Furthermore, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those not associated with the best mode presently contemplated for carrying out the invention, or those not associated with practicing the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (6)
1. A lining structure of steel ladle for steelmaking emergency is characterized by comprising,
A ladle (100) comprising a ladle wall structure (101) and a ladle bottom structure (102) arranged at the bottom of the ladle wall structure (101), and
A liner structure (200) comprising a "well" preform (201) disposed inside a containment wall structure (101);
the wall-wrapping structure (101) comprises a wrapping shell (101 a) with a U-shaped axial longitudinal section, wherein a shell permanent layer (101 b) is tightly attached to the inner side of the wrapping shell (101 a), a shell working layer (101 d) is arranged on the inner side of the shell permanent layer (101 b), a gap (101 c) is reserved between the shell permanent layer (101 b) and the shell working layer (101 d), the gap (101 c) is 0-170mm, magnesia filler is filled in the gap (101 c), the shell permanent layer (101 b) is made of high-alumina castable with the thickness of 110mm, and the shell working layer (101 d) is built by adopting arc-shaped high-alumina bricks with the thickness of 100 mm;
The bottom covering structure (102) comprises a bottom shell (102 a), wherein a bottom permanent layer (102 b) is arranged above the bottom shell (102 a), and a bottom working layer (102 c) is arranged above the bottom permanent layer (102 b), wherein the bottom permanent layer (102 b) is made of 200mm thick high-alumina castable, and the bottom working layer (102 c) is vertically built by adopting 120mm thick square high-alumina bricks;
The prefabricated part (201) comprises two long prefabricated blocks (201 a) and four short prefabricated blocks (201 b) symmetrically arranged on two sides of the long prefabricated blocks (201 a), wherein the long prefabricated blocks (201 a) and the short prefabricated blocks (201 b) are longitudinally divided into 4 or 5 identical prefabricated block units (201 c), the top of each prefabricated block unit (201 c) is provided with a concave type (201 c-1), the bottom of each prefabricated block unit is correspondingly provided with a convex type (201 c-2) to be embedded into a whole, and aluminum-magnesium refractory mortar is arranged at the interconnection part of the prefabricated block units (201 c);
a 300mm multiplied by 300mm molten steel overflow port (202) is reserved below the long precast block (201 a) and the short precast block (201 b) and close to the bottom;
the high-aluminum castable is cement-bonded castable taking high-aluminum bauxite or mullite as a main raw material, the volume density is more than or equal to 2.45g/cm < 3 >, the Al2O3 is more than or equal to 60.00%, and the normal-temperature compressive strength is more than or equal to 30.0MPa.
2. A method for constructing a lining structure of a steel ladle for steelmaking emergency as claimed in claim 1, comprising,
On the basis of the cladding and the bottom shell, vibrating construction is carried out on the permanent shell layer and the permanent bottom layer by adopting high-alumina casting materials, and baking is carried out after construction;
The working layer of the shell and the working layer at the bottom are constructed by adopting high-alumina bricks, and gaps between the working layer of the shell and the permanent layer of the shell are filled while the working layer of the shell is constructed;
the prefabricated member units are built in a splicing way by adopting aluminum-magnesium refractory clay in the steel ladle to form a 'well' -shaped prefabricated member;
naturally standing for 24 hours.
3. The method for constructing the lining structure of the steel ladle for steelmaking emergency as recited in claim 2, wherein the permanent layers of the shell and the bottom permanent layers are constructed by adopting high-aluminum casting materials in a vibrating mode, the water addition amount is 7.5% of the mass of the casting materials, and the lining structure is placed for 24 hours after construction.
4. The method for constructing the lining structure of the steel ladle for steelmaking emergency as claimed in claim 3, wherein the baking is performed by a ladle roaster at a maximum baking temperature of 400 ℃ and a high-aluminum permanent layer castable temperature rising curve.
5. The method for constructing the lining structure of the steel ladle for steelmaking emergency as recited in claim 4, wherein the construction of the shell working layer is realized by adopting arc-shaped high-alumina bricks, the arc-shaped high-alumina bricks are vertically constructed by adopting aluminum-magnesium refractory mortar construction, and brick joints are controlled to be less than 2mm.
6. The method for building the lining structure of the steel ladle for steelmaking emergency as recited in claim 5, wherein the bottom working layer is built by square high-alumina bricks, aluminum-magnesium refractory mortar is built, a slurry stirrer is used for stirring on site, the water adding amount of the aluminum-magnesium refractory mortar is 25.0% of the mass of the aluminum-magnesium refractory mortar, and the brick joint control is less than 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110046937.2A CN112743068B (en) | 2021-01-14 | 2021-01-14 | Lining structure of steelmaking emergency ladle and its masonry method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110046937.2A CN112743068B (en) | 2021-01-14 | 2021-01-14 | Lining structure of steelmaking emergency ladle and its masonry method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112743068A CN112743068A (en) | 2021-05-04 |
| CN112743068B true CN112743068B (en) | 2025-01-24 |
Family
ID=75651812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110046937.2A Active CN112743068B (en) | 2021-01-14 | 2021-01-14 | Lining structure of steelmaking emergency ladle and its masonry method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112743068B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005048251A (en) * | 2003-07-30 | 2005-02-24 | Jfe Steel Kk | Leaked steel pit for ladle refining |
| JP2005095961A (en) * | 2003-09-26 | 2005-04-14 | Nisshin Steel Co Ltd | Casting mold and method for processing molten steel |
| CN103785820A (en) * | 2014-02-17 | 2014-05-14 | 莱芜钢铁集团有限公司 | Ladle permanent lining and manufacturing method thereof |
| CN210587146U (en) * | 2019-03-25 | 2020-05-22 | 南京钢铁股份有限公司 | Accident ladle |
| CN212094313U (en) * | 2020-02-25 | 2020-12-08 | 浙江自立高温科技股份有限公司 | Carbonless Ladle |
| CN215615039U (en) * | 2021-01-14 | 2022-01-25 | 广西钢铁集团有限公司 | Lining structure of steel-making emergency steel ladle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128596B (en) * | 2014-08-22 | 2016-03-16 | 哈尔滨电机厂有限责任公司 | The ramming process method of middle-size and small-size refining ladle permanent layer |
-
2021
- 2021-01-14 CN CN202110046937.2A patent/CN112743068B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005048251A (en) * | 2003-07-30 | 2005-02-24 | Jfe Steel Kk | Leaked steel pit for ladle refining |
| JP2005095961A (en) * | 2003-09-26 | 2005-04-14 | Nisshin Steel Co Ltd | Casting mold and method for processing molten steel |
| CN103785820A (en) * | 2014-02-17 | 2014-05-14 | 莱芜钢铁集团有限公司 | Ladle permanent lining and manufacturing method thereof |
| CN210587146U (en) * | 2019-03-25 | 2020-05-22 | 南京钢铁股份有限公司 | Accident ladle |
| CN212094313U (en) * | 2020-02-25 | 2020-12-08 | 浙江自立高温科技股份有限公司 | Carbonless Ladle |
| CN215615039U (en) * | 2021-01-14 | 2022-01-25 | 广西钢铁集团有限公司 | Lining structure of steel-making emergency steel ladle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112743068A (en) | 2021-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106145964B (en) | Dry ramming material for large ladle bottom working lining | |
| CN101386067B (en) | Ladle liner and laying technique thereof | |
| CN101700572B (en) | Method for building container bottom of carbon-containing molten steel container | |
| CN103785820B (en) | A kind of ladle permanent liner and preparation method thereof | |
| CN112743068B (en) | Lining structure of steelmaking emergency ladle and its masonry method | |
| CN215615039U (en) | Lining structure of steel-making emergency steel ladle | |
| CN209272454U (en) | A kind of new-type ladle | |
| CN210587146U (en) | Accident ladle | |
| CN108856689A (en) | A kind of arc prefabricated section and the method using arc prefabricated section masonry permanent ladle layer | |
| JP3016124B2 (en) | Molten container and aluminum holding furnace | |
| JPH08219659A (en) | Construction method for induction furnace lining refractory | |
| JP3769256B2 (en) | RH degassing tank bottom, RH degassing tank, and refractory block manufacturing method | |
| CN222569277U (en) | Blast furnace hot-metal bottle | |
| CN113333724B (en) | Square-round steel ladle and refractory material building method thereof | |
| RU2744635C1 (en) | Method of manufacturing lining for metallurgical equipment in the form of a melting or filling device using additive technologies | |
| RU2755325C1 (en) | Method for manufacturing and processing additive lining | |
| EP0049895A2 (en) | Refractory lining for ladles and process for the production thereof | |
| CN201330277Y (en) | Lining structure of liquid aluminum pack | |
| JP3762743B2 (en) | Lining structure of high durability secondary smelting vessel | |
| JPH10267556A (en) | Induction furnace | |
| JP2773226B2 (en) | Ladle bottom lining structure | |
| CN115213390A (en) | Construction method for reinforced steel ladle lining | |
| JP2005186280A (en) | Precast block manufacturing method | |
| CN117444189A (en) | Ladle bottom masonry method | |
| JP2002321968A (en) | Precast block using coarse aggregate and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |