CN113210596A - Method for installing ladle upper nozzle - Google Patents
Method for installing ladle upper nozzle Download PDFInfo
- Publication number
- CN113210596A CN113210596A CN202110489179.1A CN202110489179A CN113210596A CN 113210596 A CN113210596 A CN 113210596A CN 202110489179 A CN202110489179 A CN 202110489179A CN 113210596 A CN113210596 A CN 113210596A
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- Prior art keywords
- sliding plate
- nozzle
- ladle
- upper nozzle
- feeding port
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000000670 limiting effect Effects 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 239000011449 brick Substances 0.000 claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000004927 clay Substances 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 27
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 6
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 101100327917 Caenorhabditis elegans chup-1 gene Proteins 0.000 description 9
- 230000008569 process Effects 0.000 description 4
- 238000009749 continuous casting Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
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
- B22D41/50—Pouring-nozzles
- B22D41/56—Means for supporting, manipulating or changing a pouring-nozzle
-
- 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
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/28—Plates therefor
- B22D41/34—Supporting, fixing or centering means therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention provides a ladle upper nozzle mounting method, which comprises the following steps: pre-installing a water feeding port in a brick cup; coating fire clay on the periphery of the water feeding port; pushing the water feeding port into the brick cup concentrically, and roughly adjusting the height of the water feeding port protruding out of the mechanism reference plate; installing a limiting piece, installing an upper sliding plate and a lower sliding plate, closing the mechanism, and finely adjusting the height of the upper water gap protruding out of the mechanism reference plate; when the ladle reached the standard grade, the locating part was taken off to the opening mechanism, paintd the pug and installed slide and lower slide. The invention can ensure that the mounting height and the flatness between the upper nozzle and the mechanism reference plate meet the standard during the mounting of the upper nozzle, further ensure the thickness and the uniformity of the mud filled between the upper nozzle and the upper sliding plate through the limiting piece, and effectively avoid serious safety production accidents such as steel seepage and steel leakage between the upper nozzle and the upper sliding plate of the ladle mechanism due to uneven smearing and inconsistent thickness of the mud on the upper nozzle and the upper sliding plate.
Description
Technical Field
The invention belongs to the technical field of metallurgical equipment, and particularly relates to a method for installing a ladle upper nozzle.
Background
The ladle is an important container for containing and transporting molten steel between steel making and continuous casting, and the sliding nozzle is an important component of a ladle system and is important equipment for safely, stably and reliably injecting the molten steel in the ladle into a tundish. The slide gate valve is connected with a slide mechanism arranged at the bottom of the ladle, and the steel flow is controlled by the relative dislocation size of two slide plates with openings which are assembled together.
At present, the installation of a steel ladle water feeding port usually adopts a cross-shaped positioning rod or manual installation. The mode of manually judging the installation standard of the upper nozzle completely depends on the responsibility and the operation experience of an operator, if the operator is paralyzed to the great extent, the installation height and the flatness of the upper nozzle and a mechanism datum plate do not reach the standard after the installation work of the upper nozzle of the ladle is finished, so that when a sliding plate is installed, mud is thick or uneven between the upper nozzle and the upper sliding plate, and serious safety accidents such as steel leakage and the like of the upper nozzle and the upper sliding plate can be caused in the continuous casting process.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a ladle nozzle mounting method, which is used for solving the problem that the thickness and uniformity of mud are difficult to control due to the fact that the ladle nozzle is not installed in a standard manner in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a method for installing a ladle upper nozzle, comprising the steps of:
s1, pre-installing a water feeding port in a brick cup;
s2, coating fire clay on the periphery of the water feeding port;
s3, concentrically pushing the water feeding port into the brick cup, and roughly adjusting the height of the water feeding port protruding out of the mechanism reference plate;
s4, installing a limiting piece, installing an upper sliding plate, a lower sliding plate and a closing mechanism, and finely adjusting the height of the upper water gap protruding out of a mechanism reference plate;
and S5, when the steel ladle is on line, the limiting part is taken down by the opening mechanism, pug is smeared, and the upper sliding plate and the lower sliding plate are installed.
Furthermore, in step S1, it is required to check whether the inner embedding between the water feeding port and the brick cup is matched, so that the concentricity between the water feeding port and the inner hole of the brick cup is less than or equal to 2 mm.
Further, in the step S2, the chrome fire clay with the thickness of 7-10 mm is uniformly coated on the periphery of the water feeding port, and the chrome fire clay with the thickness of 5mm is coated at the front end of the water feeding port.
Further, in step S3, the upper nozzle is sleeved on the guide rod, pushed into the brick cup along the guide rod and rotated so that the end surface of the upper nozzle is parallel to the mechanism datum plate, and the height of the end surface of the upper nozzle protruding from the mechanism datum plate is roughly adjusted.
Further, in step S4, the stopper is installed in the bottom end of the upper nozzle/the groove of the upper slide plate, and the height of the end face of the upper nozzle protruding from the mechanism reference plate is precisely adjusted by the pressure transferred by the movement between the upper slide plate and the lower slide plate.
Further, the limiting piece is detachably arranged between the upper water gap and the upper sliding plate, the installation position of the upper water gap is limited through the limiting piece during installation, and the limiting piece can limit pug filled between the upper water gap and the upper sliding plate.
Further, the locating part is including the spacing portion that is used for injecing the mounted position and the connecting portion that are used for being connected with the mouth of a river, connecting portion link firmly in spacing portion, just spacing portion is the disc, connecting portion are cylindrically, the projection area of connecting portion on the horizontal plane is less than the projection area of spacing portion on the horizontal plane.
Further, the thickness of the pug filled between the water feeding port and the upper sliding plate is consistent with that of the limiting part.
Furthermore, an installation groove for installing an upper water gap is formed in the upper sliding plate, and the outer diameter of the limiting part is in clearance fit with the inner diameter of the installation groove; the inner part of the upper nozzle is provided with an upper nozzle channel which is through along the axial direction of the upper nozzle, and the outer diameter of the connecting part is in clearance fit with the inner diameter of the bottom end of the upper nozzle channel.
Further, a through hole which penetrates through the connecting part along the axial direction is formed in the connecting part.
As described above, the present invention has the following advantageous effects:
the height of the upper nozzle protruding out of the mechanism datum plate is accurately adjusted through the limiting part, the installation height and the flatness between the upper nozzle and the mechanism datum plate are ensured to meet the standard, the thickness and the uniformity of mud filling between the upper nozzle and the upper sliding plate are further ensured through the limiting part, serious safety production accidents such as steel seepage and steel leakage between the upper nozzle and the upper sliding plate of the ladle mechanism due to uneven smearing and inconsistent thickness of the mud on the upper nozzle and the upper sliding plate can be effectively avoided, the installation quality and the safety are ensured, and the installation success rate of the upper nozzle is greatly improved.
Drawings
FIG. 1 is a schematic view of the installation state of a water feeding port in the embodiment of the invention;
FIG. 2 is a schematic view of the state that the water gap protrudes from the mechanism datum plate in FIG. 1;
FIG. 3 is an exploded view of a mounting structure in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a limiting element according to an embodiment of the invention.
Description of the reference numerals
1-brick setting; 11-brick cup inner hole;
2-water feeding port; 21-a water feeding port channel;
3-a limiting part; 31-a limiting part; 32-a connecting portion; 321-a through hole;
4, an upper sliding plate; 41-upper slide channel; 42-mounting grooves;
5, a lower sliding plate; 51-a lower slide channel;
6-water outlet; 61-a drain channel;
7-mechanism reference plate.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
In the process of installing the water feeding port, the dimension which is difficult to grasp is the distance between the water feeding port and the end surface of the mechanism datum plate (shown in A in figure 1), because the depth of the groove of the upper sliding plate in each set of sliding plate is different, if the distance between the end surface of the water feeding port and the end surface of the mechanism datum plate of the sliding plate is too high, the stress of the upper sliding plate is increased when the mechanism is closed, transverse cracks are generated, and the steel leakage accident is easily caused because the cracks are too large; if the distance is too low, the gap between the upper sliding plate and the end face of the reference plate is too large, the thickness of mud filling is increased, and potential safety hazards are brought.
Based on the method, the invention provides a method for installing the ladle upper nozzle, which is used for installing the ladle upper nozzle. Referring to fig. 1 to 3, in this embodiment, the mounting structure related to the mounting process of the upper nozzle includes a brick cup 1, an upper nozzle 2, a limiting member 3, an upper sliding plate 4, a lower sliding plate 5, a lower nozzle 6, and a reference plate 7, the upper nozzle 2 and the upper sliding plate 4 are disposed on the brick cup 1 and the fixed frame, the lower sliding plate 5 and the lower nozzle 6 are mounted on the movable frame, and the lower sliding plate 5 is in sliding fit with the upper sliding plate 4. The limiting piece 3 is detachably arranged between the upper nozzle 2 and the upper sliding plate 4, the limiting piece 3 limits the installation position of the upper nozzle 2 during installation, and the limiting piece 3 can limit pug filled between the upper nozzle 2 and the upper sliding plate 4.
The ladle upper nozzle mounting method specifically comprises the following steps:
s1, pre-installing a water feeding port 2 in a seat brick 1;
s2, coating fire clay on the periphery of the water feeding port 2;
s3, concentrically pushing the water feeding port 2 into the brick cup 1, and roughly adjusting the height of the water feeding port 2 protruding out of the mechanism reference plate 7;
s4, installing a limiting piece 3, installing an upper sliding plate 4 and a lower sliding plate 5, closing a mechanism, and finely adjusting the height of the upper water gap 2 protruding out of a mechanism reference plate 7;
s5, when the steel ladle is on line, the limiting part 3 is taken down by the opening mechanism, pug is smeared, and the upper sliding plate 4 and the lower sliding plate 5 are installed.
When the upper water gap 2 is installed, the limiting piece 3 is arranged between the upper water gap 2 and the upper sliding plate 4, so that the installation height and the flatness of the upper water gap 2 and the mechanism reference plate 7 are limited; after waiting to go up mouth of a river 2 and impressing, take off locating part 3, when installing slide 4 and slide 5 down, adopt the pug to fill the gap between mouth of a river 2 and the slide 4, determined the packing thickness and the homogeneity of pug promptly through locating part 3, when guaranteeing the ladle online operation, the pug thickness standard is even between mouth of a river 2 and the slide 4 to at the continuous casting process, avoid causing incident such as steel leakage between mouth of a river 2 and the slide 4.
The earlier stage preparation work before installing the water feeding opening comprises the following steps: whether the upper nozzle 2 and the brick cup 1 have defects or not and whether all parts of the ladle are intact are checked, residues in the brick cup inner hole 11 and the datum plate mounting hole are removed, and whether the brick cup inner hole 11 and the datum plate mounting hole are concentric or not is checked, so that the ladle can be mounted concentrically.
In step S1, it is checked whether the insert between the nozzle 2 and the brick cup 1 is matched, so that the concentricity between the nozzle 2 and the brick cup inner hole 11 is less than or equal to 2 mm. Thereby ensuring that the gap between the water feeding port 2 and the inner hole 11 of the brick cup is even.
In step S2, the chromium fire clay with a thickness of 7-10 mm is uniformly coated on the periphery of the upper nozzle 2, and the chromium fire clay with a thickness of 5mm is coated on the front end of the upper nozzle 2. And ensuring that the pug between the water feeding port 2 and the brick cup 1 is full and seamless.
In step S3, the upper nozzle 2 is sleeved on the guide rod, pushed into the brick cup 1 along the guide rod and rotated, so that the end surface of the upper nozzle 2 is parallel to the mechanism datum plate 7, and the height of the end surface of the upper nozzle 2 protruding out of the mechanism datum plate 7 is roughly adjusted. Specifically, the guide bar adopts "cross" guide bar, and 2 covers in the guide bar in the mouth of a river, need alone to support the guide bar at the front end, alone with 2 covers in the mouth of a river in the guide bar in the mouth of a river, recalibrate the concentricity once more, later, with 2 in the mouth of a river in the guide bar push into brick cup 1 and rotatory power, ensure that the fire clay is even, the bottom terminal surface of the mouth of a river 2 in the mouth of a river is parallel with mechanism datum plate 7, and stop rotatory extrusion mouth of a river 2 when the protrusion height is 10mm, then release the guide bar along ladle mouth direction.
In step S4, the stopper 3 is fitted into the bottom end of the upper nozzle 2, and the height of the end face of the upper nozzle 2 protruding from the mechanism reference plate 7 is precisely adjusted by the pressure transmitted by the movement between the upper slide plate 4 and the lower slide plate 5. Specifically, after the limiting part 3 is installed at the bottom of the upper nozzle 2, the upper sliding plate 4 and the lower sliding plate 5 are installed, the mechanism is closed, the oil cylinder is lifted, the hole diameters of the upper sliding plate 4 and the lower sliding plate 5 are aligned with each other, it is confirmed that the limiting part 3 is completely compressed, and the protruding height of the upper nozzle 2 is finely adjusted through the pressure transferred by the movement between the upper sliding plate 4 and the lower sliding plate 5.
In step S5, the ladle is lifted by the crane to be erected on the ground. When the ladle is on line, the limiting piece 3 is taken down by the opening mechanism, and whether the height of the upper nozzle 2 protruding out of the mechanism reference plate 7 is within a set range is checked. Daub on the top slide 4 and install top slide 4 and lower slide 5, close the mechanism again to guarantee that the thickness of filling the pug is the thickness of spacing portion 31 of locating part 3 promptly.
Referring to fig. 4, the limiting member 3 involved in the ladle water supply port installation method includes a limiting portion 31 for limiting an installation position and a connecting portion 32 for connecting with the water supply port 2, the connecting portion 32 is fixedly connected to the limiting portion 31, the limiting portion 31 is in a disc shape, the connecting portion 32 is in a cylindrical shape, and a projection area of the connecting portion 32 on a horizontal plane is smaller than a projection area of the limiting portion 31 on the horizontal plane. When the stopper 3 is mounted, the stopper can be connected to the bottom end of the upper nozzle 2 via the connecting portion 32, and the mounting position of the upper nozzle 2 is restricted by the stopper portion 31. Through tests, when the thickness of the limiting part 31 is 2mm, the distance between the end surface of the upper nozzle 2 and the end surface of the mechanism reference plate 7 can be kept between 4.5mm and 5.5mm, and the distance is better.
Since the installation position between the upper nozzle 2 and the mechanism reference plate 7 is limited by the limiting member 3, that is, the filling gap between the upper nozzle 2 and the upper slide plate 4 is limited by the limiting part 31 of the limiting member 3, after the limiting member 3 is removed, the thickness of the pug filled between the upper nozzle 2 and the upper slide plate 4 is consistent with the thickness of the limiting part 31. With the structure, the thickness of the limiting part 31 can be set conveniently according to requirements, so that the standard and uniformity of the filling thickness are ensured. The operation is convenient, the control is easy, and the popularization and the application of factories are convenient.
The limiting member 3 is made of metal. The limiting part 3 needs to meet the rigidity requirement and the strength requirement, so that the limiting effect is achieved.
In this embodiment, the upper slide plate 4 is provided with an installation groove 42 for installing the upper nozzle 2, and the outer diameter of the stopper 31 is in clearance fit with the inner diameter of the installation groove 42. Specifically, the limiting portion 31 of the limiting member 3 needs to be smaller than the inner diameter of the mounting groove 42, so that the limiting portion 31 of the limiting member 3 can be located in the mounting groove 42 during initial positioning.
In this embodiment, a through hole 321 that penetrates in the axial direction is provided inside the connecting portion 32. The structure is convenient for weight reduction and light weight, and reduces material cost.
In this embodiment, the inner portion of the upper nozzle 2 has an upper nozzle passage 21 penetrating along the axial direction thereof, and the outer diameter of the connecting portion 32 is in clearance fit with the inner diameter of the bottom end of the upper nozzle passage 21. With the structure, the limiting piece 3 is conveniently connected with the upper nozzle 2 through the connecting part 32, even if the limiting part 31 of the limiting piece 3 is clamped in the upper nozzle channel 21; after the water feeding port 2 is installed, the limiting part 3 can be easily dismounted, so that pug can be filled when the upper sliding plate 4 is installed again.
The upper slide plate 4 has an upper slide plate passage 41 therein, and when the upper slide plate 4 is attached to the upper nozzle 2, the upper slide plate passage 41 is coaxial with the upper nozzle passage 21. Specifically, the structure facilitates the introduction of the molten steel in the ladle from the upper nozzle passage 21 into the upper slide passage 41.
The lower water gap 6 is arranged on the lower sliding plate 5. The inner part of the lower nozzle 6 is provided with a lower nozzle channel 61, the inner part of the lower sliding plate 5 is provided with a lower sliding plate channel 51, and when the lower sliding plate 5 and the lower nozzle 6 are installed, the lower sliding plate channel 51 is coaxial with the lower nozzle channel 61. With the structure, when the upper sliding plate channel 41 is aligned with the lower sliding plate channel 51 for conduction, molten steel in a ladle flows from the inner hole 11 of the brick cup inside the brick cup 1 to the upper nozzle channel 21, is guided into the upper sliding plate channel 41 from the upper nozzle channel 21, is guided into the lower nozzle channel 61 from the lower sliding plate channel 51, and is finally guided into a tundish.
Tests prove that the installation success rate of the upper nozzle is greatly improved from 50% to 98.50% by adopting the method for installing the upper nozzle of the ladle.
In summary, in the method for installing the ladle nozzle provided by the embodiment of the invention, the height of the nozzle protruding out of the mechanism reference plate is precisely adjusted by installing the limiting piece, so that the installation height and the flatness between the nozzle and the mechanism reference plate are ensured to meet the standard, the thickness and the uniformity of the mud filled between the nozzle and the upper slide plate are further ensured by the limiting piece, serious safety production accidents such as steel seepage and steel leakage between the nozzle and the upper slide plate of the ladle mechanism caused by uneven and inconsistent smearing and thickness of the mud on the nozzle and the upper slide plate can be effectively avoided, the installation quality and the safety are ensured, and the success rate of installation of the nozzle is greatly improved.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A method for installing a ladle upper nozzle is characterized by comprising the following steps:
s1, pre-installing a water feeding port in a brick cup;
s2, coating fire clay on the periphery of the water feeding port;
s3, concentrically pushing the water feeding port into the brick cup, and roughly adjusting the height of the water feeding port protruding out of the mechanism reference plate;
s4, installing a limiting piece, installing an upper sliding plate, a lower sliding plate and a closing mechanism, and finely adjusting the height of the upper water gap protruding out of a mechanism reference plate;
and S5, when the steel ladle is on line, the limiting part is taken down by the opening mechanism, pug is smeared, and the upper sliding plate and the lower sliding plate are installed.
2. The ladle nozzle assembly method according to claim 1, wherein: in step S1, it is necessary to check whether the inner holes of the nozzle and the brick cup are fitted together, so that the concentricity between the nozzle and the inner hole of the brick cup is less than or equal to 2 mm.
3. The ladle nozzle assembly method according to claim 1, wherein: in the step S2, the chromium fire clay with the thickness of 7-10 mm is uniformly coated on the periphery of the water feeding port, and the chromium fire clay with the thickness of 5mm is coated at the front end of the water feeding port.
4. The ladle nozzle assembly method according to claim 1, wherein: in step S3, the upper nozzle is sleeved on the guide rod, pushed into the brick cup along the guide rod and rotated so that the end surface of the upper nozzle is parallel to the mechanism datum plate, and the height of the end surface of the upper nozzle protruding from the mechanism datum plate is roughly adjusted.
5. The ladle nozzle assembly method according to claim 1, wherein: in step S4, the stopper is installed at the bottom end of the upper nozzle, and the height of the end face of the upper nozzle protruding from the mechanism reference plate is precisely adjusted by the pressure transferred by the movement between the upper slide plate and the lower slide plate.
6. The ladle nozzle assembly method according to claim 1, wherein: the limiting piece is detachably arranged between the upper water gap and the upper sliding plate, the mounting position of the upper water gap is limited by the limiting piece during mounting, and pug filled between the upper water gap and the upper sliding plate can be limited by the limiting piece.
7. The ladle nozzle assembly method according to claim 6, wherein: the locating part is including the spacing portion that is used for injecing the mounted position and the connecting portion that are used for being connected with the mouth of a river, connecting portion link firmly in spacing portion, just spacing portion is the disc, connecting portion are cylindrically, the projection area of connecting portion on the horizontal plane is less than the projection area of spacing portion on the horizontal plane.
8. The ladle nozzle assembly method of claim 7, wherein: the thickness of the pug filled between the water feeding port and the upper sliding plate is consistent with that of the limiting part.
9. The ladle nozzle assembly method of claim 7, wherein: the upper sliding plate is provided with an installation groove for installing an upper water gap, and the outer diameter of the limiting part is in clearance fit with the inner diameter of the installation groove; the inner part of the upper nozzle is provided with an upper nozzle channel which is through along the axial direction of the upper nozzle, and the outer diameter of the connecting part is in clearance fit with the inner diameter of the bottom end of the upper nozzle channel.
10. The ladle nozzle assembly method of claim 7, wherein: the connecting part is internally provided with a through hole which is through along the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110489179.1A CN113210596A (en) | 2021-05-06 | 2021-05-06 | Method for installing ladle upper nozzle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110489179.1A CN113210596A (en) | 2021-05-06 | 2021-05-06 | Method for installing ladle upper nozzle |
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| CN113210596A true CN113210596A (en) | 2021-08-06 |
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| CN202110489179.1A Pending CN113210596A (en) | 2021-05-06 | 2021-05-06 | Method for installing ladle upper nozzle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828765A (en) * | 2021-09-22 | 2021-12-24 | 重庆钢铁股份有限公司 | Pneumatic control mechanism for tundish slide plate |
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| CN203061865U (en) * | 2013-02-28 | 2013-07-17 | 唐山时创耐火材料有限公司 | Mounting and positioning device for upper nozzle |
| CN205341910U (en) * | 2016-02-26 | 2016-06-29 | 唐山时创高温材料股份有限公司 | Go up mouth of a river and last skateboard connection structure |
| CN206373353U (en) * | 2017-01-23 | 2017-08-04 | 唐山圣意耐火材料有限公司 | A kind of steel ladle sliding mechanism attachment structure |
| CN206677175U (en) * | 2017-05-02 | 2017-11-28 | 舞阳钢铁有限责任公司 | A kind of ladle upper nozzle fixed structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828765A (en) * | 2021-09-22 | 2021-12-24 | 重庆钢铁股份有限公司 | Pneumatic control mechanism for tundish slide plate |
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Application publication date: 20210806 |