CN114850464A - Method for preventing steel slag from backflow to block ladle nozzle - Google Patents
Method for preventing steel slag from backflow to block ladle nozzle Download PDFInfo
- Publication number
- CN114850464A CN114850464A CN202210390658.2A CN202210390658A CN114850464A CN 114850464 A CN114850464 A CN 114850464A CN 202210390658 A CN202210390658 A CN 202210390658A CN 114850464 A CN114850464 A CN 114850464A
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- Prior art keywords
- nozzle
- ladle
- drainage
- sliding plate
- sand
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 56
- 239000010959 steel Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 32
- 239000002893 slag Substances 0.000 title claims abstract description 32
- 239000004576 sand Substances 0.000 claims abstract description 33
- 239000011449 brick Substances 0.000 claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 230000037431 insertion Effects 0.000 claims abstract description 10
- 238000007528 sand casting Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 28
- 238000010586 diagram Methods 0.000 description 5
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910000423 chromium oxide Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000002699 waste material 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
- B22D41/14—Closures
- B22D41/44—Consumable closure means, i.e. closure means being used only once
-
- 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
- B22D41/44—Consumable closure means, i.e. closure means being used only once
- B22D41/46—Refractory plugging masses
-
- 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
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a method for preventing steel slag from reflowing to block a ladle nozzle, which comprises the following steps: (1) manufacturing a drainage core, filling drainage sand in the drainage core, sealing, and meanwhile, transporting the bagged drainage sand to a production site; (2) configuring a positioning ejector rod used in a production field; (3) after the slag of the ladle is poured, moving the ladle to a hot repair station, cleaning a nozzle brick cup and an upper nozzle, replacing an upper sliding plate, a lower sliding plate and a lower nozzle, inserting a drainage core into the insertion holes of the nozzle brick cup and the nozzle sliding plate mechanism, and closing the sliding plate mechanism after the drainage core is jacked to the bottom of the lower nozzle by using a positioning jacking rod; (4) and hoisting the ladle to a ladle sand casting position to fill the water gap with the sand, and hoisting the ladle to a molten steel level to be poured. The method for preventing the steel slag from reflowing and blocking the ladle nozzle improves the self-opening rate, realizes the automatic drainage of the molten steel, and can avoid the reflowing and blocking of the steel slag.
Description
Technical Field
The invention relates to the technical field of steel making, in particular to a method for preventing steel slag from reflowing to block a ladle nozzle.
Background
The drainage sand is a special refractory material which ensures that molten steel can automatically flow when the ladle is cast, and plays a key role in the self-opening rate of the ladle and the quality of the molten steel.
At present, in domestic steel mills, a mode of manually and directly throwing drainage sand into a water feeding port at the bottom of a steel ladle or a mode of pouring simple and easy guide pipes is adopted, and a few methods for drainage by adopting a drainage rod device exist, but due to the limitation of a throwing mode, the following defects are mainly caused to influence the self-opening rate of the steel ladle: the method has the advantages that the investment for directly putting the drainage sand material is large, the waste is large, the labor intensity of workers is large, the influence of the manipulation and the familiarity of operators is large, the influence on the self-opening rate caused by the in-place drainage putting of the ladle is difficult to ensure, and the quality of molten steel is influenced by the large sand amount. Secondly, after the ladle is subjected to hot repair, residual steel and residues in the ladle are not poured completely in time, so that the phenomenon that the residual steel (liquid) residue ladle flows into a water feeding port when being erected and the water feeding port is blocked is caused to occur occasionally, and particularly after the conventional ladle capping process is popularized, backflow residues are more prominent, so that the self-opening rate is seriously influenced. And thirdly, the vibration of the steel ladle cover or steel ladle placing trolley caused by the falling of the residues on the steel ladle wall and the ladle opening blocks the water feeding port, so that the regular drainage is caused, the tapping is unsuccessful, the molten steel is poured, the production rhythm is influenced, even the production is interrupted, and the production order of an operation area is disturbed and the steel quality accident is caused in serious cases. Fourthly, the single type of drainage sand is difficult to adapt to different working environments to influence self-opening due to different temperatures, thermal stresses and sintering layers at the upper nozzle, the pocket brick nozzle and the bottom of the ladle. The drainage rod is automatically opened due to the influence of various defects such as insufficient sand amount and the like caused by the limitation of the calibers of the sliding plate and the water gap. Sixthly, the sand adding amount is large, dust flies with hot flow, the environmental protection is seriously influenced, and potential safety hazards are brought to constructors. The existing method commonly adopted by the prior art can not meet the ideal requirements of the self-starting rate of each steel mill.
Disclosure of Invention
The invention aims to provide a method for preventing steel slag from reflowing to block a ladle nozzle, which aims to solve the problems in the prior art, improve the self-opening rate, realize the automatic drainage of molten steel and avoid the blockage of the reflowing of the steel slag.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a method for preventing steel slag from reflowing to block a ladle nozzle, which comprises the following steps:
(1) manufacturing a drainage core, wherein the drainage core is a hollow pipe, filling drainage sand into the drainage core, sealing, and meanwhile, transporting the bagged drainage sand to a production site;
(2) a positioning ejector rod used in a production field is configured, and a worker can use the positioning ejector rod to push the drainage core into the insertion holes of the nozzle pocket brick and the nozzle slide plate mechanism;
(3) after the slag of the ladle is poured, moving the ladle to a hot repair station, cleaning a nozzle brick cup and an upper nozzle, replacing an upper sliding plate, a lower sliding plate and a lower nozzle, inserting the drainage core into the insertion holes of the nozzle brick cup and the nozzle sliding plate mechanism, jacking the drainage core to the bottom of the upper nozzle by using a positioning ejector rod, and closing the sliding plate mechanism;
(4) and hoisting the ladle to a ladle sand casting position to fill a water gap with the cast sand, and hoisting the ladle to a molten steel level to be poured.
Preferably, the drainage core is filled with a plurality of layers of drainage sand with different proportions.
Preferably, the location ejector pin includes handle, screw rod, first nut, second nut and locating plate, the handle sets firmly the one end of screw rod, the locating plate cover is established on the screw rod and with screw rod sliding fit, first nut with the second nut respectively with screw rod threaded connection, the locating plate is located first nut with between the second nut, first nut with the second nut can with the locating plate presss from both sides tightly.
Preferably, the axial distance between the positioning plate and the other end of the screw rod is the positioning size of the positioning ejector rod.
Preferably, the nozzle pocket brick and the nozzle slide mechanism comprise a nozzle pocket brick, an upper nozzle, an upper slide plate, a lower slide plate and a lower nozzle which are sequentially arranged from top to bottom, the nozzle pocket brick is arranged at the bottom of the ladle, and the insertion holes are the molten steel circulation channels in the nozzle pocket brick and the nozzle slide mechanism.
Compared with the prior art, the invention has the following technical effects:
the method for preventing the steel slag from reflowing and blocking the ladle nozzle improves the self-opening rate, realizes the automatic drainage of the molten steel, and can avoid the reflowing and blocking of the steel slag. The method for preventing the steel slag from reflowing to block the ladle nozzle is convenient to put and operate, is unchanged from the existing operation mode of each steel mill, only needs to insert the drainage core into the upper nozzle after the hot repair of the ladle at the hot repair station is finished, pushes the drainage core into the positioning plate to the bottom of the lower nozzle by using the positioning ejector rod for positioning, does not need secondary deslagging, and effectively improves the production efficiency and the self-opening rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a ladle in the method for preventing steel slag from reflowing to block a nozzle of the ladle according to the present invention;
FIG. 2 is a schematic structural diagram of a positioning ejector rod in the method for preventing steel slag from reflowing to block a ladle nozzle according to the invention;
FIG. 3 is a schematic structural diagram of a nozzle pocket brick and a nozzle slide mechanism in the method for preventing steel slag from reflowing to block a ladle nozzle according to the present invention;
FIG. 4 is a first schematic structural diagram of a drainage core in the method for preventing steel slag from reflowing to block a ladle nozzle according to the present invention;
FIG. 5 is a second schematic structural diagram of a drainage core in the method for preventing steel slag from reflowing to block a ladle nozzle according to the present invention;
wherein: 1. a water feeding port; 2. an upper slide plate; 3. a lower slide plate; 4. a water outlet; 5. a nozzle pocket brick; 6. a jack; 7. a handle; 8. a first nut; 9. positioning a plate; 10. a second nut; 11. a screw; 12. a ladle; 13. a drainage core; 131. first stuffing sand; 132. second stuffing sand; 133. third stuffing sand; 14. air brick.
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 of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
The invention aims to provide a method for preventing steel slag from reflowing to block a ladle nozzle, which aims to solve the problems in the prior art, improve the self-opening rate, realize the automatic drainage of molten steel and avoid the blockage of the reflowing of the steel slag.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 5: the embodiment provides a method for preventing steel slag from reflowing to block a ladle nozzle, which comprises the following steps of:
(1) manufacturing a drainage core 13, wherein the drainage core 13 is made of stainless steel and hollow tubes, filling drainage sand in the drainage core 13, sealing, and meanwhile, transporting the bagged drainage sand to a production site;
in this embodiment, the inside of the drainage core 13 is filled with 3 layers of drainage sands with different proportions, namely, the first drainage sand 131, the second drainage sand 132 and the third drainage sand 133, in this embodiment, the 3 layers of drainage sands with different proportions are different proportions determined according to the working temperatures of different positions, so as to achieve the technical effects of completely self-flowing, self-opening and automatic drainage under the environments of different expansibility and fluidity caused by different sintering conditions. The proportion of the first drainage sand 131 is 10-20% of zirconia, 80-90% of chromic oxide and 3-5% of additive, and the working temperature of the position of the first drainage sand 131 is 1520 ℃ or above. The proportion of the second drainage sand 132 is 10-20% of silicon oxide, 80-90% of chromium oxide and 3-5% of additive, and the working temperature of the position where the second drainage sand 132 is located is above 800 ℃; the proportion of the third diversion sand 133 is 60-70% of silicon oxide, 30-40% of chromium oxide and 3-5% of additive, and the working temperature of the position of the first diversion sand 131 is above 300 ℃.
(2) A positioning ejector rod used in a production field is configured, and a worker can use the positioning ejector rod to push the drainage core 13 into the insertion hole 6 of the nozzle pocket brick and the nozzle slide plate mechanism;
in this embodiment, the positioning ejector rod comprises a handle 7, a screw rod 11, a first nut 8, a second nut 10 and a positioning plate 9, the handle 7 is fixedly arranged at one end of the screw rod 11, the positioning plate 9 is sleeved on the screw rod 11 and is in sliding fit with the screw rod 11, the first nut 8 and the second nut 10 are respectively in threaded connection with the screw rod 11, the positioning plate 9 is positioned between the first nut 8 and the second nut 10, and the first nut 8 and the second nut 10 can clamp the positioning plate 9 tightly. The axial distance between the positioning plate 9 and the other end of the screw rod 11 is the positioning size of the positioning mandril. When utilizing the location ejector pin to push into drainage core 13, the one end top that keeps away from handle 7 with screw rod 11 touches the one end of drainage core 13, and the other end of drainage core 13 inserts jack 6, and the staff promotes the location ejector pin until locating plate 9 is blocked and can not promote, and it needs to be noted that, closes slide 3 and blocks drainage core 13 down when the bottom of drainage core 13 moves the bottom of mouth of a river 1 to prevent dropping of drainage core 13.
The nozzle pocket brick and the nozzle sliding plate mechanism comprise a nozzle pocket brick 5, an upper nozzle 1, an upper sliding plate 2, a lower sliding plate 3 and a lower nozzle 4 which are sequentially arranged from top to bottom, the nozzle pocket brick 5 and a gas brick 14 are respectively arranged at the bottom of a ladle 12, and a jack 6 is a molten steel circulation channel in the nozzle pocket brick and the nozzle sliding plate mechanism.
(3) After the slag of the ladle 12 is poured, the ladle 12 is moved to a hot repair station, then a nozzle brick cup 5 and an upper nozzle 1 are cleaned, an upper sliding plate 2, a lower sliding plate 3 and a lower nozzle 4 are replaced, a drainage core 13 is inserted into a jack 6 of the nozzle brick cup and a nozzle sliding plate mechanism, the drainage core 13 is pushed to the bottom of the upper nozzle 1 by a positioning ejector rod, and the jack 6 is blocked by the lower sliding plate 3; specifically, the upper sliding plate 2 is fixed at the bottom of the upper nozzle 1, the lower sliding plate 3 can be horizontally displaced relative to the upper sliding plate 2 and the lower nozzle 4, and the lower sliding plate 3 is driven by the hydraulic cylinder to move left and right to block the insertion hole 6.
After the drainage core 13 is inserted into the insertion hole 6, the drainage core 13 blocks a channel for the backflow of the steel slag, so that the steel slag backflow is prevented from blocking a ladle nozzle.
(4) And hoisting the ladle 12 to a ladle sand casting position, casting bagged drainage sand and filling a water gap, and hoisting the ladle 12 to a molten steel position to be poured.
The method for preventing the steel slag from flowing back to block the ladle nozzle in the embodiment has the advantages that the putting operation is convenient, the method is unchanged from the existing operation mode of each steel mill, only the steel ladle 12 needs to be subjected to hot repair at the hot repair station, the drainage core 13 is inserted into the upper nozzle 1, the drainage core 13 is pushed into the positioning plate 9 to be positioned at the bottom of the lower nozzle 4 through the positioning ejector rod, secondary deslagging is not needed, and the production efficiency and the self-opening rate are effectively improved.
In the description of the present invention, it should be noted that the terms "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (5)
1. A method for preventing steel slag from reflowing to block a ladle nozzle is characterized by comprising the following steps:
(1) manufacturing a drainage core, wherein the drainage core is a hollow pipe, filling drainage sand into the drainage core, sealing, and meanwhile, transporting the bagged drainage sand to a production site;
(2) a positioning ejector rod used in a production field is configured, and a worker can use the positioning ejector rod to push the drainage core into the insertion holes of the nozzle pocket brick and the nozzle slide plate mechanism;
(3) after the slag of the ladle is poured, moving the ladle to a hot repair station, cleaning a nozzle brick cup and an upper nozzle, replacing an upper sliding plate, a lower sliding plate and a lower nozzle, inserting the drainage core into the insertion holes of the nozzle brick cup and the nozzle sliding plate mechanism, jacking the drainage core to the bottom of the upper nozzle by using a positioning ejector rod, and closing the sliding plate mechanism;
(4) and hoisting the ladle to a ladle sand casting position to fill a water gap with the cast sand, and hoisting the ladle to a molten steel level to be poured.
2. The method for preventing the steel slag from reflowing to block the nozzle of the ladle as claimed in claim 1, wherein the method comprises the following steps: and a plurality of layers of drainage sand with different proportions are filled in the drainage core.
3. The method for preventing the steel slag from reflowing to block the nozzle of the ladle as claimed in claim 1, wherein the method comprises the following steps: the positioning ejector rod comprises a handle, a screw rod, a first nut, a second nut and a positioning plate, the handle is fixedly arranged at one end of the screw rod, the positioning plate is sleeved on the screw rod and in sliding fit with the screw rod, the first nut and the second nut are respectively in threaded connection with the screw rod, the positioning plate is located between the first nut and the second nut, and the first nut and the second nut can clamp the positioning plate.
4. The method for preventing the steel slag from reflowing to block the nozzle of the ladle as claimed in claim 3, wherein the method comprises the following steps: the axial distance between the positioning plate and the other end of the screw rod is the positioning size of the positioning ejector rod.
5. The method for preventing the steel slag from reflowing to block the nozzle of the ladle as claimed in claim 1, wherein the method comprises the following steps: the nozzle pocket brick and the nozzle sliding plate mechanism comprise a nozzle pocket brick, an upper nozzle, an upper sliding plate, a lower sliding plate and a lower nozzle which are sequentially arranged from top to bottom, the nozzle pocket brick is arranged at the bottom of the ladle, and the insertion holes are flow channels of molten steel in the nozzle pocket brick and the nozzle sliding plate mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210390658.2A CN114850464A (en) | 2022-04-14 | 2022-04-14 | Method for preventing steel slag from backflow to block ladle nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210390658.2A CN114850464A (en) | 2022-04-14 | 2022-04-14 | Method for preventing steel slag from backflow to block ladle nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN114850464A true CN114850464A (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210390658.2A Pending CN114850464A (en) | 2022-04-14 | 2022-04-14 | Method for preventing steel slag from backflow to block ladle nozzle |
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| CN (1) | CN114850464A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030046302A (en) * | 2001-12-05 | 2003-06-12 | 주식회사 포스코 | An apparatus for preventing slag from carrying into a ladle during converter tapping |
| CN104353823A (en) * | 2014-11-29 | 2015-02-18 | 山东泰山钢铁集团有限公司 | Steel ladle drainage sand lower filling type filling method |
| CN104827019A (en) * | 2015-04-21 | 2015-08-12 | 西峡县新越冶金材料开发有限公司 | Ladle automatic drainage device |
| CN106881458A (en) * | 2017-03-23 | 2017-06-23 | 张国令 | A kind of refining ladle flow diverter and preparation method thereof |
| CN108405845A (en) * | 2016-11-07 | 2018-08-17 | 中车齐齐哈尔车辆有限公司 | The loading method of stuffing sand is loaded into ladle |
| CN113814390A (en) * | 2021-11-02 | 2021-12-21 | 修昌珉 | Sliding gate drainage sand filling device and method |
| CN114101651A (en) * | 2020-09-01 | 2022-03-01 | 吕晏含 | Ladle drainage sand casting pipe, framework device and using method thereof |
| CN114247876A (en) * | 2021-12-14 | 2022-03-29 | 吉林金钢钢铁股份有限公司 | Ladle stuffing sand adding device and method |
-
2022
- 2022-04-14 CN CN202210390658.2A patent/CN114850464A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20030046302A (en) * | 2001-12-05 | 2003-06-12 | 주식회사 포스코 | An apparatus for preventing slag from carrying into a ladle during converter tapping |
| CN104353823A (en) * | 2014-11-29 | 2015-02-18 | 山东泰山钢铁集团有限公司 | Steel ladle drainage sand lower filling type filling method |
| CN104827019A (en) * | 2015-04-21 | 2015-08-12 | 西峡县新越冶金材料开发有限公司 | Ladle automatic drainage device |
| CN108405845A (en) * | 2016-11-07 | 2018-08-17 | 中车齐齐哈尔车辆有限公司 | The loading method of stuffing sand is loaded into ladle |
| CN106881458A (en) * | 2017-03-23 | 2017-06-23 | 张国令 | A kind of refining ladle flow diverter and preparation method thereof |
| CN114101651A (en) * | 2020-09-01 | 2022-03-01 | 吕晏含 | Ladle drainage sand casting pipe, framework device and using method thereof |
| CN113814390A (en) * | 2021-11-02 | 2021-12-21 | 修昌珉 | Sliding gate drainage sand filling device and method |
| CN114247876A (en) * | 2021-12-14 | 2022-03-29 | 吉林金钢钢铁股份有限公司 | Ladle stuffing sand adding device and method |
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