CN113070456A - Crystallizer covering slag changing device and crystallizer covering slag changing method - Google Patents
Crystallizer covering slag changing device and crystallizer covering slag changing method Download PDFInfo
- Publication number
- CN113070456A CN113070456A CN202110283325.5A CN202110283325A CN113070456A CN 113070456 A CN113070456 A CN 113070456A CN 202110283325 A CN202110283325 A CN 202110283325A CN 113070456 A CN113070456 A CN 113070456A
- Authority
- CN
- China
- Prior art keywords
- slag
- changing
- rake body
- crystallizer
- covering slag
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/108—Feeding additives, powders, or the like
-
- 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 application relates to the field of metallurgical industry, and relates to a crystallizer covering slag changing device and a crystallizer covering slag changing method. This crystallizer covering slag trades sediment device includes: a slag changing harrow body and a handle. The slag changing harrow body is provided with a cavity, and the bottom wall of the slag changing harrow body is provided with a plurality of slag guiding holes. One end of the handle is connected with the side wall of the slag changing harrow body, and the other end is a free end. When the sinter bed is too thick or the covering slag is agglomerated, the slag changing rake body is placed into the crystallizer covering slag surface layer to load and take the agglomerated covering slag, and a plurality of slag guide holes are formed in the bottom wall of the slag changing rake body, so that partial powder covering slag enters the slag changing rake body and can flow out of the plurality of slag guide holes in the bottom wall even when the agglomerated covering slag is loaded and taken. Therefore, the crystallizer covering slag replacing device can avoid bringing out excessive powder covering slag when the agglomerated covering slag is fished, thereby ensuring the continuous consumption of the covering slag in the crystallizer, further meeting the high-requirement continuous casting production and ensuring the quality of steel billets.
Description
Technical Field
The application relates to the field of metallurgical industry, in particular to a crystallizer covering slag changing device and a crystallizer covering slag changing method.
Background
The mold flux plays a very important role in the continuous casting process, and mainly comprises the following steps: the heat insulation and preservation prevent heat dissipation, prevent oxygen in the air from entering the molten steel to generate secondary oxidation, absorb and dissolve impurities floating from the molten steel to a steel slag interface, form a lubricating slag film between the wall of the crystallizer and a solidified blank shell, fill an air gap between the blank shell and the crystallizer, improve heat transfer and the like.
The casting powder is divided into a powder slag layer, a sintering layer and a liquid slag layer in the crystallizer, and in the continuous casting production process, the crystallizer vibrates up and down, and the casting blank runs downwards. Because of negative slip, liquid slag formed on the surface of the molten steel is sucked into an air gap between the wall of the crystallizer and the casting blank shell to form a slag film, and the effects of lubrication and uniform heat transfer can be achieved.
However, liquid slag often adsorbs inclusions or a sintered layer is often developed excessively. After the liquid slag adsorbs the impurities, the liquid slag is easy to denature. When liquid slag is denatured or a sintered layer is excessively developed, slag rings and covering slag conglomerations are formed along the periphery of the inner wall of the crystallizer, and a channel for meniscus liquid slag to flow downwards is blocked, so that the liquid slag is difficult to enter an air gap between the wall of the crystallizer and a shell of the crystallizer, and the lubrication and heat transfer of a casting blank are influenced.
At present, the slag ring is usually taken after the slag ring appears, and the slag ring is selected by using a slag fishing rod for treatment, but the operation of the slag fishing rod easily influences the quality of a casting blank and cannot meet the high-requirement continuous casting production.
Disclosure of Invention
An object of the embodiments of the present application is to provide a crystallizer mold flux changing device and a crystallizer mold flux changing method, which aim to solve the problem that the existing crystallizer mold flux changing cannot meet the high requirement of continuous casting production.
In a first aspect, the present application provides a mold flux slag changing device, comprising:
a slag changing rake body; the slag changing rake body is provided with a cavity, and the bottom wall of the slag changing rake body is provided with a plurality of slag guide holes; the slag changing rake body is provided with a first end and an opposite second end; the second end of the slag changing harrow body is arc-shaped, and the angle range of the arc is 115-145 degrees; the width of the first end is different from that of the second end, and the width of the first end is smaller than that of the second end; a central line is formed from the first end to the second end, and the included angle between the first end and the central line is 25-35 degrees; and
one end of the handle is connected with the side wall of the slag changing harrow body, and the other end of the handle is a free end.
In other embodiments of the present application, a cross section of the slag-changing rake body is U-shaped.
In other embodiments of the present application,
the handle is attached proximate the first end relative to the second end.
In other embodiments of the present application, the thickness of the bottom wall of the second end of the slag rake body is greater than the thickness of the bottom wall of the first end.
In other embodiments of the present application, the bottom wall of the rake body is inclined, and the inclination angle from the second end to the first end is between 10 ° and 35 °.
In other embodiments of the present application, the diameter of the slag hole is between 1.2 mm and 2.8 mm.
In other embodiments of the present application, the rake body is made of a refractory ceramic material.
In other embodiments of the present application, a connecting hole is disposed on a side wall of the slag-changing rake body, and the handle is detachably connected in the connecting hole.
In a second aspect, the application provides a crystallizer covering slag changing method, which adopts the crystallizer covering slag changing device to change slag.
In other embodiments of the present application, the method comprises: putting the slag changing rake body into the surface layer of the crystallizer covering slag to load the caking covering slag, so that the powdery covering slag powder flows out from the plurality of slag guide holes, and the caking covering slag is left in the slag changing rake body;
taking out the slag changing rake body.
The crystallizer covering slag changing device and the crystallizer covering slag changing method provided by the embodiment of the application have the beneficial effects that:
when the sinter bed is too thick or the covering slag is agglomerated, the slag changing rake body is placed into the crystallizer covering slag surface layer to load and take the agglomerated covering slag, and a plurality of slag guide holes are formed in the bottom wall of the slag changing rake body, so that partial powder covering slag enters the slag changing rake body and can flow out from the plurality of slag guide holes in the bottom wall to separate the agglomerated covering slag from the powder covering slag even when the agglomerated covering slag is loaded and taken. Therefore, the crystallizer covering slag replacing device can avoid bringing out excessive powder covering slag when the agglomerated covering slag is fished, thereby ensuring the continuous consumption of the covering slag in the crystallizer, further meeting the high-requirement continuous casting production and ensuring the quality of steel billets.
Furthermore, the shape of the crystallizer covering slag replacing device is matched with a narrow space formed between an immersion nozzle in the crystallizer and the interior of the crystallizer, so that the agglomerated covering slag can be fished more easily.
Further, for dragging for the sediment stick among the prior art, this crystallizer covering slag trades sediment device can not cause too big liquid level fluctuation to can not cause the roll sediment, can not influence the casting blank quality, can satisfy the continuous casting production of high requirement. And the crystallizer covering slag changing device has the advantages of simple structure, convenient installation and simple operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural view of a first view angle of a mold flux changing device provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a second view angle of a mold flux changing device provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a third view angle of a crystallizer mold flux slag changing device provided in the embodiment of the present application;
fig. 4 is a schematic structural diagram of a fourth view angle of the crystallizer mold flux slag changing device provided in the embodiment of the present application;
fig. 5 is a schematic view of a usage state of a mold flux changing device provided in an embodiment of the present application.
Icon: 100-a crystallizer covering slag changing device; 110-a slag changing rake body; 111-a cavity; 112-slag guide holes; 113-a connection hole; 114-a first end; 115-a second end; 116-a bottom wall; 117-sidewalls; 120-a handle; 121-free end; 10-a crystallizer; 20-submerged entry nozzle.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it is to be understood that the orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships that a product of the application is conventionally placed when in use, or the orientations or positional relationships that a person skilled in the art conventionally understands are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The formation of slag rings, the agglomeration of casting powder or the over-thickness of a sintering layer indicates the change of the performance of the casting powder, and measures must be taken to treat the casting powder in time, so that the smoothness of a slag channel is kept, and the normal heat transfer and lubrication of the casting blank are ensured. The inventors have found that the best opportunity to deal with the problem of mold flux denaturation is to take measures before the formation of slag rings, i.e., when the sintered layer is too thick or the mold flux is agglomerated.
Referring to fig. 1 to 4, an embodiment of the present application provides a mold flux changing apparatus 100, including: a slag changing rake body 110 and a handle 120. The crystallizer casting powder slag changing device 100 can put the slag changing rake body 110 into the surface layer of the crystallizer casting powder to take out the agglomerated casting powder when a sintering layer is too thick or the casting powder is agglomerated. And because a plurality of slag guide holes are formed in the bottom wall of the slag changing rake body, even when the agglomerated covering slag is loaded and unloaded, part of the powder covering slag enters the slag changing rake body and can flow out of the plurality of slag guide holes in the bottom wall. Therefore, the method can avoid bringing out excessive powder covering slag when the agglomerated covering slag is fished, thereby realizing the separation of the agglomerated covering slag and the powder covering slag, ensuring the continuous consumption of the covering slag and meeting the high-requirement continuous casting production.
Further, the slag changing rake body 110 has a cavity 111, and the bottom wall 116 is provided with a plurality of slag guiding holes 112.
By arranging the slag guide hole 112, the covering slag of the powder can be prevented from being brought out when the covering slag is fished and agglomerated, so that the influence on the content of the covering slag in the crystallizer and the quality of the billet can be avoided.
Further, one end of the handle 120 is connected to the connecting hole 113 on the sidewall 117 of the rake body 110, and the other end is a free end 121.
The handle 120 is convenient for the operator to use.
The length of the handle 120 is set according to actual needs.
Further, in some embodiments, the handle 120 is removably attached to the sidewall 117 of the rake body 110 in the attachment aperture 113.
The handle 120 is detachably connected in the connecting hole 113 on the side wall 117 of the slag changing rake body 110, so that the whole crystallizer mold flux slag changing device 100 is convenient to install and disassemble.
Further, in some embodiments of the present application, a cross-section of the slag rake body 110 is U-shaped.
The shape of one cross section of the slag changing rake body 110 is set to be U-shaped, so that the agglomerated mold powder can be fished out from the crystallizer better.
Referring to fig. 1, in the illustrated embodiment, after the two opposite side walls 117 are transversely cut along the width direction of the slag rake body 110, the side wall 117 and the bottom wall 116 form a cross section (transversely cut along the AA direction in fig. 1) which is substantially U-shaped (refer to fig. 4).
Further, the rake body 110 has a first end 114 and an opposite second end 115.
Further, the width of the first end 114 is different from that of the second end 115, and the width of the first end 114 is smaller than that of the second end 115.
The widths of the first end 114 and the second end 115 are different, and the width of the first end 114 is smaller than that of the second end 115, so that the shape of the crystallizer covering slag changing device can be better matched with a narrow space formed between an immersion nozzle in a crystallizer and the inside of the crystallizer, and agglomerated covering slag can be fished more easily.
Referring to fig. 1, the second end 115 of the slag rake body 110 is arc-shaped, and the angle α of the arc ranges from 115 ° to 145 °.
Further optionally, the second end 115 of the slag rake body 110 is arc-shaped, and the angle α of the arc ranges from 116 ° to 144 °.
Further optionally, the second end 115 of the slag rake body 110 is arc-shaped, and the angle α of the arc ranges from 120 ° to 140 °.
Further optionally, the second end 115 of the slag rake body 110 is arc-shaped, and the angle α of the arc ranges from 125 ° to 135 °.
Illustratively, the angle α of the arc of the second end 115 of the rake body 110 is 126 °, 127 °, 128 °, 129 °, 130 °, 131 °, 132 °, 133 °, or 134 °.
By setting the angle of the arc of the second end 115 of the slag rake body 110 within the above range, the slag adhesion on the outer circle of the second end can be limited, and within this range, even when the equipment is in contact with the liquid slag, the liquid slag can be prevented from adhering to the equipment.
Further, referring to fig. 2, the widths of the first end 114 and the second end 115 are different, the width of the first end is smaller than the width of the second end; the included angle between the first end 114 and the central line L is 25-35 degrees by taking the central line L from the first end 114 to the second end 115.
Further alternatively, the included angle θ between the first end 114 and the central line L is 26 ° to 34 °.
Further alternatively, the included angle θ between the first end 114 and the center line L is 27 ° to 33 °.
Further alternatively, the included angle θ between the first end 114 and the central line L is 28 ° to 32 °.
Illustratively, the angle θ between the first end 114 and the centerline L is 29 °, 30 °, 31 °, or 32 °.
The included angle between the first end 114 and the center line L is set within the above range, so that the first end can be well matched with a submerged nozzle, and slag can be well fished. Further, in use, the first end 114 is used for guiding slag. The second end 115 is used for slag removal.
Referring to fig. 5, in use, the second end 115 of the rake body 110 is extended into the mold 10. The inner part of the crystallizer 10 is provided with a submerged nozzle, and the second end 115 of the slag-changing rake body 110 is extended into a narrow gap between the submerged nozzle 20 and the inner wall of the crystallizer 10. Since the upper nozzle of the submerged entry nozzle 20 is eroded to be smaller, the submerged entry nozzle 20 has a structure in which the upper portion is smaller and the lower portion is larger after a certain period of use, and the diameter of the upper portion of the nozzle is larger than that of the lower portion (the portion entering molten steel). This application trades structure of sediment harrow body 110 can effectively avoid trading sediment harrow body 110 touching immersion nozzle 20. In addition, the width of this application slag changing harrow body 110 first end 114 is less than the width of second end 115, can match each other with immersion nozzle shape for second end 115 for dragging for the sediment can be more close the mouth of a river, is used for drawing more being favorable to when the first end 114 of sediment adds the sediment in the position of being close the mouth of a river and adds the sediment homogeneity.
It should be understood that when the slag rake body 110 is adopted to drag slag, the powder mold flux entering the interior of the slag rake body 110 can be further discharged into the mold from the bottom wall 116 of the slag rake body 110 through the plurality of slag guide holes 112 formed in the bottom wall 116, so that the content of the mold flux in the mold can be further prevented from being reduced, the continuous consumption of the mold flux is ensured, and the high-requirement continuous casting production can be met.
It should be noted that, in practice, the width values of the first end 114 and the second end 115 of the slag-changing rake body 110 can be set according to the actual space between the crystallizer and the submerged nozzle in the crystallizer, so that the slag-changing rake body 110 can conveniently drag and scoop the agglomerated mold powder in the narrow space between the crystallizer and the submerged nozzle in the crystallizer.
Further, a handle 120 is attached to a side wall of the rake body 110, and the handle 120 is attached proximate the first end 114 relative to the second end 115.
Since the width of the second end 115 of the rake body 110 is greater than the width of the first end 114, the second end 115 is usually extended into the space between the mold and the submerged nozzle in the mold when in use, so that the handle 120 is connected to the sidewall of the rake body 110 and is close to the first end 114 relative to the connection position of the second end 115 and the handle 120, thereby facilitating the operation of the operator.
Further, the thickness of the bottom wall of the second end 115 of the slag rake body 110 is greater than the thickness of the bottom wall of the first end 114.
The thickness of the bottom wall of the second end 115 of the slag changing rake body 110 is set to be larger than that of the bottom wall of the first end 114, so that the thickness of the bottom wall can be matched with the spatial shape of the submerged nozzle in the crystallizer and the crystallizer, and the agglomerated mold powder can be well fished. More importantly, the bottom wall of the second end 115 of the rake body 110 has a thickness greater than that of the first end 114, so that the liquid level is not greatly fluctuated. Compared with the slag fishing rod in the prior art, the interference to the fluctuation of the liquid level is greatly reduced, and the requirement of high-quality continuous casting production is favorably met.
Referring to fig. 2, further, the bottom wall of the slag changing rake body is inclined, and the inclination angle delta from the second end to the first end is between 10 degrees and 35 degrees.
Because the slag changing rake body 110 is easy to rotate when entering the crystallizer, a certain inclination angle is generated, the space in the crystallizer is small, and the movable space of the slag changing rake body 110 is small. If the inclination angle from the second end to the first end of the slag changing rake body is less than 10 degrees, the agglomerated slag cannot be fished out in a small moving space, the agglomerated slag blocks are easy to drop, if the inclination angle from the second end to the first end of the slag changing rake body is more than 35 degrees, the volume of the slag changing rake body 110 is too large, the slag changing rake body is easy to clamp in a narrow crystallizer, and the agglomerated slag blocks at the edge of the crystallizer cannot be removed.
Further, because the shape of the whole slag changing rake body shows that one end is thin and sharp, the other end is thick and wide, and the inclination angle from the second end to the first end is between 10 degrees and 35 degrees, the second end 115 can be inserted into the slag layer under the condition of generating minimum interference on the liquid level in the angle range, the stress of the second end 115 is ensured, and the use of the handle 120 by a user is ensured.
Further optionally, the bottom wall of the slag changing rake body is inclined, and the inclination angle δ from the second end to the first end is between 11 ° and 34 °.
Further optionally, the bottom wall of the slag changing rake body is inclined, and the inclination angle δ from the second end to the first end is between 12 ° and 33 °.
Illustratively, the bottom wall of the slag rake body is inclined, and the inclination angle delta from the second end to the first end is 15 degrees, 20 degrees, 25 degrees and 30 degrees.
Furthermore, the aperture of the slag guide hole is 1.2-2.8 mm.
The aperture of the slag guide hole is set to be 1.2-2.8 mm, so that the powdery covering slag can flow out easily, and the agglomerated slag can be effectively removed.
Further optionally, the diameter of the slag guide hole is 1.3-2.7 mm. Further optionally, the diameter of the slag guide hole is 1.5-2.5 mm.
Illustratively, the bore diameter of the slag guide hole is 1.6mm, 1.8mm, 2.0mm, 2.2mm or 2.4 mm.
Further, the slag changing rake body is made of refractory ceramic materials.
The slag-changing rake body is made of refractory ceramic materials, so that the slag powder is favorably guided and protected; and the agglomerated mold flux can be floated and is not easy to block.
Further optionally, the slag changing rake body is made of a smooth refractory ceramic material.
Some embodiments of the application also provide a crystallizer covering slag changing method, and slag is changed by adopting the crystallizer covering slag changing device in any one of the embodiments.
Further, the crystallizer covering slag changing method comprises the following steps:
putting the slag changing rake body into the surface layer of the crystallizer covering slag to load the caking covering slag, so that the powdery covering slag powder flows out from the plurality of slag guide holes, and the caking covering slag is left in the slag changing rake body;
taking out the slag changing rake body.
Through changing the separation of sediment harrow body with caking covering slag and likepowder covering slag, change in the likepowder covering slag that the guide cinder hole of sediment harrow body bottom flows out the crystallizer, can avoid taking out too much powder covering slag when fishing out caking covering slag to can ensure the continuous consumption of covering slag in the crystallizer, and then can satisfy the continuous casting production of high requirement, guarantee steel billet quality.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. The utility model provides a crystallizer covering slag changes sediment device which characterized in that includes:
a slag changing rake body; the slag changing rake body is provided with a cavity, and the bottom wall of the slag changing rake body is provided with a plurality of slag guide holes; the slag changing rake body is provided with a first end and an opposite second end; the second end of the slag changing harrow body is arc-shaped, and the angle range of the arc is 115-145 degrees; the width of the first end is different from that of the second end, and the width of the first end is smaller than that of the second end; a central line is formed from the first end to the second end, and the included angle between the first end and the central line is 25-35 degrees; and
and one end of the handle is connected to the side wall of the slag changing rake body, and the other end of the handle is a free end.
2. The mold flux slag changer of claim 1,
one cross section of the slag changing rake body is U-shaped.
3. The mold flux slag changer of claim 1 or 2,
the handle is attached proximate the first end relative to the second end.
4. The mold flux changing device of claim 3,
the thickness of the bottom wall of the second end of the slag changing rake body is larger than that of the bottom wall of the first end.
5. The mold flux changing device of claim 4,
the bottom wall of the slag changing harrow body is inclined, and the inclination angle from the second end to the first end is 10-35 degrees.
6. The mold flux slag changer of claim 1,
the aperture of the slag guide hole is 1.2-2.8 mm.
7. The mold flux slag changer of claim 1,
the slag changing rake body is made of refractory ceramic materials.
8. The mold flux slag changer of claim 1,
the side wall of the slag changing rake body is provided with a connecting hole, and the handle is detachably connected in the connecting hole.
9. A crystallizer covering slag changing method is characterized in that the crystallizer covering slag changing device as claimed in any one of claims 1 to 8 is adopted for slag changing.
10. The mold flux changing method according to claim 9, comprising:
putting the slag changing rake body into the surface layer of the crystallizer covering slag to load the caking covering slag, so that the powdery covering slag powder flows out from a plurality of slag guide holes, and the caking covering slag is left in the slag changing rake body;
and taking out the slag changing rake body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110283325.5A CN113070456B (en) | 2021-03-16 | 2021-03-16 | Crystallizer covering slag changing device and crystallizer covering slag changing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110283325.5A CN113070456B (en) | 2021-03-16 | 2021-03-16 | Crystallizer covering slag changing device and crystallizer covering slag changing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113070456A true CN113070456A (en) | 2021-07-06 |
| CN113070456B CN113070456B (en) | 2022-10-14 |
Family
ID=76612542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110283325.5A Active CN113070456B (en) | 2021-03-16 | 2021-03-16 | Crystallizer covering slag changing device and crystallizer covering slag changing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113070456B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005001147A1 (en) * | 2003-06-25 | 2005-01-06 | Voest-Alpine Industrieanlagenbau Gmbh & Co. | Method for producing an alloy molten metal and associated production plant |
| JP2005169488A (en) * | 2003-12-15 | 2005-06-30 | Shinagawa Refract Co Ltd | High viscosity mold powder for continuous casting of steel |
| KR100784350B1 (en) * | 2006-12-29 | 2007-12-13 | 주식회사 포스코 | Method for mold flux remove |
| CN105328149A (en) * | 2015-10-29 | 2016-02-17 | 芜湖新兴铸管有限责任公司 | Automatic feeding device for casting powder |
| CN205057044U (en) * | 2015-10-10 | 2016-03-02 | 新疆八一钢铁股份有限公司 | Modified steelmaking continuous casting drags for sediment harrow |
| CN211708061U (en) * | 2020-01-15 | 2020-10-20 | 沧州中铁装备制造材料有限公司 | Automatic slag adding device of continuous casting crystallizer |
| CN211866562U (en) * | 2020-01-11 | 2020-11-06 | 广东韶钢松山股份有限公司 | Covering slag changes sediment device |
-
2021
- 2021-03-16 CN CN202110283325.5A patent/CN113070456B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005001147A1 (en) * | 2003-06-25 | 2005-01-06 | Voest-Alpine Industrieanlagenbau Gmbh & Co. | Method for producing an alloy molten metal and associated production plant |
| JP2005169488A (en) * | 2003-12-15 | 2005-06-30 | Shinagawa Refract Co Ltd | High viscosity mold powder for continuous casting of steel |
| KR100784350B1 (en) * | 2006-12-29 | 2007-12-13 | 주식회사 포스코 | Method for mold flux remove |
| CN205057044U (en) * | 2015-10-10 | 2016-03-02 | 新疆八一钢铁股份有限公司 | Modified steelmaking continuous casting drags for sediment harrow |
| CN105328149A (en) * | 2015-10-29 | 2016-02-17 | 芜湖新兴铸管有限责任公司 | Automatic feeding device for casting powder |
| CN211866562U (en) * | 2020-01-11 | 2020-11-06 | 广东韶钢松山股份有限公司 | Covering slag changes sediment device |
| CN211708061U (en) * | 2020-01-15 | 2020-10-20 | 沧州中铁装备制造材料有限公司 | Automatic slag adding device of continuous casting crystallizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113070456B (en) | 2022-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9460248B2 (en) | Method for predicting degree of contamination of molten steel during ladle exchange | |
| TWI451923B (en) | Immersion nozzle | |
| EP0265235B1 (en) | Continuous casting of composite metal material | |
| CN113070456B (en) | Crystallizer covering slag changing device and crystallizer covering slag changing method | |
| CA2971130A1 (en) | Method for continuously casting steel | |
| JP4864423B2 (en) | Immersion nozzle for continuous casting | |
| KR101400044B1 (en) | Method for controlling casting speed in continuous casting | |
| CN211866562U (en) | Covering slag changes sediment device | |
| JP2004001057A (en) | Dipping nozzle for continuous casting of thin slab | |
| JPS5924902B2 (en) | Continuous casting nozzle | |
| US11148192B2 (en) | Shroud for billet casting | |
| KR20130099331A (en) | Collrctor nozzle for ladle | |
| JP2001129645A (en) | Immersion nozzle for continuous casting and continuous casting method | |
| JP6217778B2 (en) | Immersion nozzle | |
| JP5713065B2 (en) | Slab continuous casting equipment | |
| JPS5874257A (en) | Method and device for charging of molten metal in continuous casting | |
| JP6792179B2 (en) | Immersion nozzle for continuous casting | |
| JP6497200B2 (en) | Immersion nozzle for strip casting apparatus and strip casting apparatus | |
| JP2004098082A (en) | Method for casting molten stainless steel performing electromagnetic stirring | |
| Konar et al. | Investigation of optimal continuous casting conditions for superior steel cleanliness | |
| JPH01254371A (en) | Control member for molten metal flowing out quantity | |
| JP3713182B2 (en) | Continuous casting method for molten steel | |
| KR101400035B1 (en) | Method for producing high quality slab | |
| KR101435122B1 (en) | Controlling method for surface quality of ultra low carbon steel slab | |
| KR20140056712A (en) | Method for predicting surface velocity of molten steel in mold |
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 |