CN115415510A - Steel ladle bottom and building method - Google Patents
Steel ladle bottom and building method Download PDFInfo
- Publication number
- CN115415510A CN115415510A CN202211129131.0A CN202211129131A CN115415510A CN 115415510 A CN115415510 A CN 115415510A CN 202211129131 A CN202211129131 A CN 202211129131A CN 115415510 A CN115415510 A CN 115415510A
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- China
- Prior art keywords
- ladle
- bricks
- wall
- ladle bottom
- impact area
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- 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
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- 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
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- 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
Abstract
The invention discloses a steel ladle bottom and a building method thereof, and the steel ladle bottom and the building method thereof comprise a steel ladle body, wherein a ladle wall is fixedly arranged on the inner wall of the steel ladle body, the bottom of the steel ladle body is a steel ladle bottom, the ladle wall is built along the inner wall of the steel ladle body, an inclination angle is arranged between a building brick of the ladle wall and the steel ladle bottom, an impact area is fixedly built in the steel ladle bottom, the area of the steel ladle bottom except the impact area is formed by casting a corundum self-flowing material casting layer, the impact area is rectangular in the steel ladle bottom, occupies one third or one half of the area of the steel ladle bottom, the impact area is circular or elliptical in the steel ladle bottom, occupies one third or one half of the area of the steel ladle bottom, the impact area is polygonal in the steel ladle bottom, and occupies one third or one half of the area of the steel ladle bottom.
Description
Technical Field
The invention belongs to the technical field of steel ladle building, and particularly relates to a steel ladle bottom and a building method.
Background
The ladle bottom in the prior art is built by aluminum-magnesium carbon bricks with the height of 300mm, the impact resistance of the ladle bottom is poor, the service life of a ladle is greatly shortened, and particularly, the ladle bottom bricks are easily crushed or extruded by thermal expansion during ladle baking. In this case, in order to ensure the normal operation of production, a maintenance worker needs to maintain the bottom of the ladle, the gap is usually repaired by smearing aluminum-magnesium-carbon ash, so that the production efficiency is delayed while manpower resources are wasted, and the production is delayed while the cost is increased by slightly repairing the off-line of the ladle when the damage range of the ladle is large during baking;
secondly, the existing ladle is offline for minor repair operation for 50 times, and the residual thickness of the ladle bottom brick is about 220 mm. When the ladle is used for 95 times, the ladle is forced to be offline for overhaul operation, and the residual thickness of the ladle bottom brick is about 150mm, so that the safe production cannot be ensured.
Disclosure of Invention
The invention aims to provide a ladle bottom and a building method thereof, which aim to solve the problems in the background technology.
The purpose of the invention is realized by the following technical scheme: the utility model provides a ladle package end, includes the ladle body, ladle body inner wall is fixed to be equipped with the ladle wall, ladle body bottom is ladle package end, the ladle wall along ladle body inner wall is built by laying bricks or stones, just the masonry brick of ladle wall with be equipped with the angle of inclination between the ladle package end, ladle package end internal fixation is built by laying bricks or stones has the impact zone, on the ladle package end except the regional position in impact zone place is formed by the pouring layer casting of corundum from flowing material.
Furthermore, the impact area is located in the ladle bottom and is rectangular, and the impact area occupies one third or one half of the area of the ladle bottom.
Furthermore, the impact area is positioned in the ladle bottom and is circular or elliptical, and the impact area occupies one third or one half of the area of the ladle bottom.
Furthermore, the impact area is positioned in the ladle bottom and is in a polygonal shape, and the impact area occupies one third or one half of the area of the ladle bottom.
Furthermore, the impact area is formed by building a plurality of tank bottom bricks 350mm 200mm 100mm, the impact area is arranged on the corundum self-flowing material pouring layer, and the thickness of the impact area is half or equal to that of one tank bottom brick higher than the corundum self-flowing material pouring layer.
Further, the thickness of the corundum self-flowing material pouring layer is set to be 280-320mm, and the tank bottom brick is an alumina-magnesia carbon brick.
Furthermore, an inclination angle arranged between the masonry bricks of the ladle wall and the ladle bottom is set to be 30-60 degrees, and the corundum extends from the flowing material pouring layer to an inclination range formed between the masonry bricks of the ladle wall and the ladle bottom;
the ladle comprises a ladle wall, a ladle bottom and a ladle wall, wherein the ladle wall is provided with a masonry brick, the ladle bottom is provided with a ladle wall brick, the ladle wall is provided with a ladle bottom, the ladle bottom is provided with a ladle wall brick, the ladle wall brick is arranged on the ladle wall, and the ladle bottom is provided with a ladle wall brick.
Furthermore, the impact area is formed by building a plurality of tank bottom bricks on the bottom of the ladle in a hollow round shape or an oval shape;
the corundum self-flowing material pouring layer is poured on the hollow round or oval inner bottom layer, a tank bottom brick is laid on the upper layer of the corundum self-flowing material pouring layer, and the corundum self-flowing material pouring layer and the tank bottom brick are laid at intervals.
A method for building a ladle bottom of a ladle comprises the following steps;
a tank bottom brick of 350mm 200mm 100mm is adopted as the impact area at the central area of the bottom of the ladle;
the inclination angle arranged between the masonry bricks of the ladle wall and the ladle bottom is set to be 30-60 degrees, and the corundum extends from the flowing material pouring layer to the inclination range formed between the masonry bricks of the ladle wall and the ladle bottom;
the inclined support tank bottom bricks are arranged in an inclined range formed between the masonry bricks of the wall and the bottom of the ladle, the tank bottom bricks are arranged at intervals, and the tank bottom bricks abut against the masonry bricks of the wall and the bottom of the ladle
The impact area is positioned in the ladle bottom and is circular, elliptic or polygonal; when the impact area is positioned in the bottom of the steel ladle and is circular or elliptical, the impact area is formed by building a plurality of hollow circular or elliptical tank bottom bricks on the bottom of the steel ladle, the hollow circular or elliptical inner bottom layer is used for pouring the corundum self-flowing material pouring layer, and tank bottom bricks are laid on the upper layer of the corundum self-flowing material pouring layer and are laid at the bottom of the steel ladle at intervals;
the steel ladle bottom is formed by casting all the parts of the steel ladle bottom except the impact area by corundum self-flowing materials, and the thickness of the casting layer is 300mm.
A maintenance method of a ladle bottom of a ladle body is characterized in that corundum self-flowing materials are continuously cast on the bottom of the ladle bottom on the basis of original residual thickness until the thickness is 300mm when minor repair operation is carried out on the ladle body; and when the residual thickness of the bottom of the steel ladle is about 150mm, the steel ladle body is laid off line again.
Compared with the prior art, the invention has the beneficial effects that:
the method provided by the invention takes a plurality of tank bottom bricks as impact areas at the tank bottom, and the rest parts are cast by corundum self-flowing materials, and the thermal expansion is generated during baking, because only the impact areas are formed by a plurality of bricks, the phenomenon of crushing or dropping the bricks can not occur, so that the impact resistance of the tank bottom is improved, the service life of a steel ladle is prolonged, and the labor intensity and the production cost are greatly reduced;
the invention greatly increases the corrosion resistance of the ladle bottom, prolongs the service life of the ladle, further reduces the number of times of building the ladle and reduces the labor intensity and the cost of refractory materials.
Drawings
FIG. 1 is a general schematic of the present invention;
FIG. 2 is a schematic view of a corundum self-casting layer according to the present invention;
FIG. 3 is a schematic view of the corundum self-pouring layer and the ladle wall and the inclination range;
FIG. 4 is a schematic view of a first impact zone of the present invention;
FIG. 5 is a schematic view of a second impact zone of the present invention;
FIG. 6 is a schematic view of a third impingement area of the present invention;
FIG. 7 is a schematic view of a third impingement area of the present invention;
figure 8 is a schematic view of a stop block according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
As shown in fig. 1-8, a ladle bottom comprises a ladle body 1, wherein a ladle wall 2 is fixedly arranged on the inner wall of the ladle body 1, the bottom of the ladle body 1 is a ladle bottom 3, the ladle wall 2 is built along the inner wall of the ladle body 1, an inclination angle 5 is arranged between a building brick of the ladle wall 2 and the ladle bottom 3, an impact area 4 is fixedly built in the ladle bottom 3, and the ladle bottom 3 is cast by a corundum self-flowing material casting layer 6 except for the area where the impact area 4 is located.
In order to facilitate the phenomenon that the brick at the bottom of the ladle is crushed or extruded due to the thermal expansion when the ladle is placed and baked in a use state (the brick at the bottom of the ladle), a further preferable embodiment of the invention is that the impact area 4 is rectangular in the ladle bottom 3, 3-6 blocking blocks are fixedly arranged around the impact area 4 at intervals (the corresponding blocking blocks are arranged to prevent the impact area 4 from deforming in the use state), the blocking blocks are formed by building the brick at the bottom of the ladle, the height of the blocking blocks is the same as that of the impact area 4, and the impact area 4 occupies one third or one half of the area of the ladle bottom 3.
In order to facilitate the phenomenon that the tank bottom bricks are crushed or squeezed off due to the thermal expansion when the ladle bottom bricks are placed and baked in a use state, a further preferred embodiment of the invention is that the impact zone 4 is positioned in the ladle bottom 3 and is in a circular shape or an oval shape, 3 to 6 blocking blocks are fixedly arranged around the impact zone 4 at intervals (the corresponding blocking blocks are arranged to prevent the impact zone 4 from deforming in a use state), the blocking blocks are formed by building the ladle bottom bricks, the height of the blocking blocks is the same as that of the impact zone 4, and the impact zone 4 occupies one third or one half of the area of the ladle bottom 3.
In order to facilitate the phenomenon that the brick at the bottom of the ladle is crushed or squeezed off due to the thermal expansion when the ladle is placed and baked in a use state (the brick at the bottom of the ladle), a further preferable embodiment of the invention is that the impact area 4 is positioned in the ladle bottom 3 and is in a polygonal shape, 3-6 blocking blocks are fixedly arranged at intervals around the impact area 4 (the corresponding blocking blocks are arranged to prevent the impact area 4 from deforming in the use state), the blocking blocks are built by the brick at the bottom of the ladle, the height of the blocking blocks is the same as that of the impact area 4, and the impact area 4 occupies one third or one half of the area of the ladle bottom 3.
In order to prolong the service life of the ladle in a using state, further reduce the times of ladle masonry and reduce labor intensity and refractory material cost, the invention adopts the further preferred embodiment that: impact district 4 adopts a plurality of blocks 350mm 200mm 100mm's tank bottoms brick to build by laying bricks or stones and forms, impact district 4 set up in the corundum is from flowing material pouring layer 6 on, and impact district 4 than the corundum is from flowing material pouring layer 6 the thickness that is half or a tank bottoms brick.
In order to improve the service life of the ladle bottom of the ladle in a using state, the further preferable embodiment of the invention is that the thickness of the corundum self-flowing material pouring layer 6 is set to be 280-320mm, and the ladle bottom brick is an alumina-magnesia carbon brick.
In order to prevent the integral ladle bottom from expanding or extruding due to thermal expansion in a use state, a further preferable embodiment of the invention is that an inclination angle arranged between the masonry brick of the ladle wall 2 and the ladle bottom 3 is set to be 30-60 degrees, and the corundum extends from the flowing material pouring layer 6 to an inclination range formed between the masonry brick of the ladle wall 2 and the ladle bottom 3;
the inclined support tank bottom bricks are arranged in an inclined range formed between the masonry bricks of the ladle wall 2 and the ladle bottom 3, the tank bottom bricks are arranged at intervals, and the tank bottom bricks abut against the masonry bricks of the ladle wall 2 and the ladle bottom 3.
In order to facilitate the use of another type of impact zone in the using state, the invention further adopts a preferred embodiment that the impact zone 4 is formed by a plurality of ladle bottom bricks which are laid on the ladle bottom 3 to be in a hollow round shape or an oval shape;
the corundum self-flowing material pouring layer 6 is poured on the hollow round or oval inner bottom layer, a tank bottom brick is laid on the upper layer of the corundum self-flowing material pouring layer 6, and the corundum self-flowing material pouring layer and the tank bottom brick are laid at intervals in a bottom-crossing mode.
In order to facilitate the prolonging of the service life of the steel ladle, increase the using times of the steel ladle and reduce the building times of the steel ladle in a using state, the invention adopts the following building mode:
a method for building a ladle bottom of a ladle comprises the following steps;
a tank bottom brick of 350mm 200mm 100mm is adopted as the impact area 4 at the central area of the ladle bottom 3;
the inclination angle arranged between the masonry bricks of the ladle wall and the ladle bottom is set to be 30-60 degrees, and the corundum extends from the flowing material pouring layer to the inclination range formed between the masonry bricks of the ladle wall and the ladle bottom;
the inclined support tank bottom bricks are arranged in an inclined range formed between the masonry bricks of the wall and the bottom of the ladle, the tank bottom bricks are arranged at intervals, and the tank bottom bricks abut against the masonry bricks of the wall and the bottom of the ladle
The impact area 4 is positioned in the ladle bottom 3 and is circular, elliptic or polygonal;
when the impact area 4 is positioned in the steel ladle bottom 3 and is circular or elliptical, the impact area 4 is built by a plurality of ladle bottom bricks on the steel ladle bottom 3 and is hollow and circular or elliptical, the corundum self-flowing material pouring layer 6 is poured on the hollow circular or elliptical inner bottom layer, and the corundum self-flowing material pouring layer 6 is paved with the ladle bottom bricks at the upper layer and is paved at intervals in a bottom-crossing manner;
the rest parts of the ladle bottom 3 except the impact area 4 are all cast by corundum self-flowing materials 3, and the thickness of the casting layer is 300mm.
A maintenance method of a ladle bottom of a ladle body 1 is characterized in that corundum self-flowing materials are continuously cast on the bottom of the ladle bottom 3 on the basis of the original residual thickness until the thickness is 300mm when minor repair operation is carried out on the ladle body;
when the residual thickness of the bottom 3 of the ladle is about 150mm, the lower line of the ladle body 1 is built again.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (10)
1. The utility model provides a ladle package end, includes ladle body (1), its characterized in that: the steel ladle body (1) inner wall is fixed and is equipped with ladle wall (2), ladle body (1) bottom is ladle package end (3), ladle wall (2) along ladle body (1) inner wall is built by laying bricks or stones, just the brick of building by laying bricks or stones of ladle wall (2) with be equipped with angle of inclination (5) between ladle package end (3), ladle package end (3) internal fixation is built by laying bricks or stones and is had impact zone (4), ladle package end (3) is gone up except that the regional position in impact zone (4) place is formed by the pouring of corundum from flowing material pouring layer (6).
2. The ladle bottom according to claim 1, wherein: the impact area (4) is located in the ladle bottom (3) and is rectangular, and the impact area (4) occupies one third or one half of the area of the ladle bottom (3).
3. The ladle bottom according to claim 1, wherein: the impact area (4) is positioned in the ladle bottom (3) and is circular or elliptical, and the impact area (4) occupies one third or one half of the area of the ladle bottom (3).
4. The ladle bottom according to claim 1, wherein: the impact area (4) is positioned in the ladle bottom (3) and is in a polygonal shape, and the impact area (4) occupies one third or one half of the area of the ladle bottom (3).
5. The ladle bottom according to claim 2, 3 or 4, wherein: the impact area (4) is formed by building a plurality of tank bottom bricks 350mm 200mm 100mm, the impact area (4) is arranged on the corundum self-flowing material pouring layer (6), and the impact area (4) is half or the thickness of one tank bottom brick higher than the corundum self-flowing material pouring layer (6).
6. The ladle bottom according to claim 5, wherein: the thickness of the corundum self-flowing material pouring layer (6) is set to be 280-320mm, and the tank bottom brick is an alumina-magnesia carbon brick.
7. The ladle bottom according to claim 1, wherein: an inclination angle arranged between the masonry bricks of the ladle wall (2) and the ladle bottom (3) is set to be 30-60 degrees, and the corundum extends from the flowing material pouring layer (6) to an inclination range formed between the masonry bricks of the ladle wall (2) and the ladle bottom (3);
the ladle comprises a ladle wall (2) and a ladle bottom (3), wherein inclined support ladle bottom bricks are arranged in an inclined range formed between the masonry bricks of the ladle wall (2) and the ladle bottom (3), the ladle bottom bricks are arranged at intervals, and the ladle bottom bricks abut against the masonry bricks of the ladle wall (2) and the ladle bottom (3).
8. The ladle bottom according to claim 3, wherein: the impact area (4) is built on the ladle bottom (3) by a plurality of ladle bottom bricks to form a hollow round shape or an oval shape;
the corundum self-flowing material pouring layer (6) is poured on the hollow round or oval inner bottom layer, a pot bottom brick is laid on the upper layer of the corundum self-flowing material pouring layer (6), and the corundum self-flowing material pouring layer and the pot bottom brick are laid at intervals in a bottom-crossing mode.
9. The method for building the ladle bottom according to any one of claims 1 to 8, wherein: comprises the following steps;
a tank bottom brick of 350mm 200mm 100mm is adopted as the impact area (4) at the central area of the ladle bottom (3);
the inclination angle arranged between the masonry bricks of the ladle wall and the ladle bottom is set to be 30-60 degrees, and the corundum extends from the flowing material pouring layer to the inclination range formed between the masonry bricks of the ladle wall and the ladle bottom;
the inclined support tank bottom bricks are arranged in an inclined range formed between the masonry bricks of the wall and the bottom of the ladle, the tank bottom bricks are arranged at intervals, and the tank bottom bricks abut against the masonry bricks of the wall and the bottom of the ladle
The impact area (4) is positioned in the ladle bottom (3) and is circular, elliptic or polygonal;
when the impact area (4) is positioned in the steel ladle bottom (3) and is circular or elliptical, the impact area (4) is built by a plurality of ladle bottom bricks on the steel ladle bottom (3) and is hollow and circular or elliptical, the corundum self-flowing material pouring layer (6) is poured on the hollow circular or elliptical inner bottom layer, and the corundum self-flowing material pouring layer (6) is paved with the ladle bottom bricks at the upper layer and is paved at intervals in a bottom-crossing manner;
the ladle bottom (3) is formed by casting corundum self-flowing materials (3) at the rest parts except the impact area (4), and the thickness of the casting layer is 300mm.
10. The ladle bottom repair method according to any one of claims 1 to 8, wherein: when the ladle body (1) is subjected to minor repair operation, the bottom of the ladle bottom (3) is continuously cast with corundum self-flowing materials to a thickness of 300mm on the basis of the original residual thickness;
when the residual thickness of the ladle bottom (3) of the ladle is about 150mm, the ladle body (1) is off-line and rebuilt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129131.0A CN115415510A (en) | 2022-09-16 | 2022-09-16 | Steel ladle bottom and building method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211129131.0A CN115415510A (en) | 2022-09-16 | 2022-09-16 | Steel ladle bottom and building method |
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| Publication Number | Publication Date |
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| CN115415510A true CN115415510A (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211129131.0A Pending CN115415510A (en) | 2022-09-16 | 2022-09-16 | Steel ladle bottom and building method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10158716A (en) * | 1996-11-28 | 1998-06-16 | Harima Ceramic Co Ltd | Working method for lining molten metal vessel and brick hanging tool used for the method |
| RU82605U1 (en) * | 2008-12-09 | 2009-05-10 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | FILLING BUCKET |
| CN201940597U (en) * | 2011-01-27 | 2011-08-24 | 宝山钢铁股份有限公司 | Construction structure between wall and bottom of steel ladle |
| CN202621906U (en) * | 2012-05-07 | 2012-12-26 | 苏州罗卡节能科技有限公司 | Hot metal ladle |
| CN108311683A (en) * | 2018-03-05 | 2018-07-24 | 北京利尔高温材料股份有限公司 | A kind of low cost method for constructing bottom of steel ladle |
| CN110017686A (en) * | 2019-04-19 | 2019-07-16 | 中冶焦耐(大连)工程技术有限公司 | A kind of novel inner ring wall construction |
| CN210937110U (en) * | 2019-10-17 | 2020-07-07 | 河南海格尔高温材料有限公司 | Impact-resistant prefabricated part structure for wall-bottom boundary of steel ladle |
| CN114905033A (en) * | 2022-05-20 | 2022-08-16 | 武汉钢铁有限公司 | Hot metal ladle structure with heating function |
-
2022
- 2022-09-16 CN CN202211129131.0A patent/CN115415510A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10158716A (en) * | 1996-11-28 | 1998-06-16 | Harima Ceramic Co Ltd | Working method for lining molten metal vessel and brick hanging tool used for the method |
| RU82605U1 (en) * | 2008-12-09 | 2009-05-10 | Открытое акционерное общество "Магнитогорский металлургический комбинат" | FILLING BUCKET |
| CN201940597U (en) * | 2011-01-27 | 2011-08-24 | 宝山钢铁股份有限公司 | Construction structure between wall and bottom of steel ladle |
| CN202621906U (en) * | 2012-05-07 | 2012-12-26 | 苏州罗卡节能科技有限公司 | Hot metal ladle |
| CN108311683A (en) * | 2018-03-05 | 2018-07-24 | 北京利尔高温材料股份有限公司 | A kind of low cost method for constructing bottom of steel ladle |
| CN110017686A (en) * | 2019-04-19 | 2019-07-16 | 中冶焦耐(大连)工程技术有限公司 | A kind of novel inner ring wall construction |
| CN210937110U (en) * | 2019-10-17 | 2020-07-07 | 河南海格尔高温材料有限公司 | Impact-resistant prefabricated part structure for wall-bottom boundary of steel ladle |
| CN114905033A (en) * | 2022-05-20 | 2022-08-16 | 武汉钢铁有限公司 | Hot metal ladle structure with heating function |
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