CN215279864U - Flow control device for replacing externally hung water gap - Google Patents
Flow control device for replacing externally hung water gap Download PDFInfo
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- CN215279864U CN215279864U CN202120677322.5U CN202120677322U CN215279864U CN 215279864 U CN215279864 U CN 215279864U CN 202120677322 U CN202120677322 U CN 202120677322U CN 215279864 U CN215279864 U CN 215279864U
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Abstract
The utility model discloses a change accuse of external mouth of a river and flow device includes: the utility model discloses an add the accuse that the life-span only has 10 seconds-30 seconds and flow the cup, accuse that the cup inner chamber diameter flows is the design of 0.2-0.9 times of zirconia inside lining inner chamber diameter, and accuse flows the cup and can reduce the velocity of flow of molten steel, eliminate the potential safety hazard of changing external nozzle, the safety when guaranteeing the change of external nozzle, accuse flow the cup and finally dissolve in the molten steel, resume the original velocity of flow of molten steel, guarantee the normal production of continuous casting steel.
Description
Technical Field
The utility model relates to a refractory material continuous casting processing technology field, in particular to change accuse of external mouth of a river and flow device during high casting speed.
Background
In the continuous steel casting process, molten steel continuously passes through a water-cooled crystallizer, is condensed into a hard shell, is continuously pulled out from an outlet below the crystallizer, and is cooled by water spraying to be completely solidified to form a steel blank with a required shape. The quick-change water gap is an important component in the continuous casting production process. When steel is continuously cast, because the molten steel has larger molten steel scouring force and steel slag erosion in the flowing process, various water gaps in a tundish often need to be replaced, in the process of replacing an external water gap in the prior art, a stopper rod is usually used for controlling flow firstly to slow down the flow rate of the molten steel, then the external water gap is replaced, but the stopper rod frequently runs back and forth to control flow, grooves or starvation are easily formed on the surface of the stopper rod, the flow control effect is seriously influenced, the flow rate of the molten steel cannot be effectively reduced, and when the external water gap is replaced, the flow rate of the molten steel is too fast and is easy to be split, so that potential safety hazards exist.
The utility model discloses with the accuse that provides a change external mouth of a river device of flowing solves above-mentioned technical problem.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an in-process of prior art changing is being carried out to the external mouth of a river is being overcome to aim at, control with the stopper rod earlier usually and flow, slow down the velocity of flow of molten steel, then change at the external mouth of a river of going on, nevertheless the stopper rod frequently makes a round trip to operate and controls the flow, recess or scarce material very easily appear in the stopper rod surface, seriously influence accuse flow effect, can't effectively reduce the molten steel velocity of flow, when changing the external mouth of a river, the molten steel is easily split, there is this technical problem of potential safety hazard, a accuse flow device who changes the external mouth of a river is provided, it has good accuse flow effect, the molten steel velocity of flow resumes very fast after the external mouth of a river is changed and is accomplished, satisfy the production demand of continuous casting steel.
For realizing the purpose of the utility model, the utility model adopts the technical scheme that: the method is characterized in that: the flow control device comprises a flow control device body, wherein the flow control device body comprises a shell, a zirconia lining, an iron shell and a flow control cup, the shell is of an integral structure, the zirconia lining is located on the inner side of the shell, the iron shell is located on the outer side of the shell, the flow control cup is arranged on the inner side of the top of the zirconia lining, the top of the flow control cup and the top of the shell are on the same plane, the diameter of an inner cavity of the flow control cup is 0.2-0.9 times of the diameter of the inner cavity of the zirconia lining, and the flow control time of the flow control cup is 10-30 seconds.
Furthermore, the flow control cup is embedded at the top of the zirconia lining through fire clay.
Furthermore, the center lines of the shell, the zirconia lining and the flow control cup are superposed.
Compared with the prior art, the utility model has the advantages that: by adding the flow control cup with the service life of only 10-30 seconds, the diameter of the inner cavity of the flow control cup is 0.2-0.9 times of that of the inner cavity of the zirconia lining, the flow control cup can reduce the flow rate of molten steel, eliminate the potential safety hazard of replacing the external nozzle and ensure the safety of replacing the external nozzle, the flow control cup is finally dissolved in the molten steel to recover the original flow rate of the molten steel and ensure the normal production of continuous casting steel, and on the other hand, the manufacturing material of the flow control cup is made of elements such as Mg, Ca, Al and the like which can be contained in the molten steel, so that the production quality of the continuous casting steel cannot be influenced after the molten steel is dissolved and the production quality of the continuous casting steel is ensured.
Drawings
Fig. 1 is a schematic structural view of a flow control device for replacing an external nozzle of the present invention;
fig. 2 is an assembly structure diagram of an external nozzle and a flow control device body of the flow control device for replacing the external nozzle of the present invention;
in the figure: 1. a flow control device body; 2. a housing; 3. a zirconia lining; 4. an iron shell; 5. and a flow control cup.
Detailed Description
In view of the deficiencies in the prior art, the technical solution of the present invention can be provided through long-term research and a large amount of practice. The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention.
Fig. 1 is the embodiment of the utility model provides a change accuse of external mouth of a river and flow device schematic diagram, fig. 2 is the utility model discloses a change the accuse of external mouth of a river and flow the packaging structure schematic diagram of device body with the accuse of external mouth of a river and mention, as shown in fig. 1 and fig. 2, the embodiment of the utility model provides a change the accuse of external mouth of a river and flow the device: the flow control device comprises a flow control device body 1, wherein the flow control device body 1 comprises an outer shell 2, a zirconia lining 3, an iron shell 4 and a flow control cup 5, the outer shell 2 is of an integral structure, the zirconia lining 3 is positioned on the inner side of the outer shell 2, the iron shell 4 is positioned on the outer side of the outer shell 2, the flow control cup 5 is arranged on the inner side of the top of the zirconia lining 3, the flow control cup 5 is made of elements which can be contained in molten steel, such as Mg, Ca, Al and the like, and the production quality of continuous casting steel cannot be influenced after being dissolved, the top of the zirconia lining 3, the top of the flow control cup 5 and the top of the outer shell 2 are positioned on the same plane, the tops of the three are ground after being assembled and fixed, the tops of the three are positioned on the same plane, the original use performance of the flow control device body is ensured not to be influenced, and the diameter of an inner cavity of the flow control cup 5 is 0.2-0.9 times of the diameter of the inner cavity of the zirconia lining 3, the flow rate of molten steel can be effectively reduced, the replacement of the external water gap at the bottom of the flow control device body 1 is facilitated, the potential safety hazard is eliminated, the flow control time of the flow control cup 5 is 10-30 seconds, namely, the service life of the flow control cup 5 is only 10-30 seconds, the flow control device body 1 assembled above the external water gap is replaced before the external water gap is replaced, the flow rate of the molten steel is greatly reduced after the replacement, the potential safety hazard of the external water gap is eliminated, the external water gap is replaced immediately, and after the external water gap is replaced, the flow control cup 5 can be dissolved into the molten steel due to the scouring of the molten steel and the erosion of steel slag, the normal flow rate of the molten steel is recovered, and the normal production of continuous casting steel is ensured.
Preferably, the flow control cup 4 is embedded on the top of the zirconia lining 3 through fire clay.
Preferably, the center lines of the outer shell 1, the zirconia lining 2 and the flow control cup 4 are overlapped, so that the normal flow of molten steel is ensured.
The utility model discloses beneficial effect includes: by adding the flow control cup with the service life of only 10-30 seconds, the diameter of the inner cavity of the flow control cup is 0.2-0.9 times of that of the inner cavity of the zirconia lining, the flow control cup can reduce the flow rate of molten steel, eliminate the potential safety hazard of replacing the external nozzle and ensure the safety of replacing the external nozzle, the flow control cup is finally dissolved in the molten steel to recover the original flow rate of the molten steel and ensure the normal production of continuous casting steel, and on the other hand, the manufacturing material of the flow control cup is made of elements such as Mg, Ca, Al and the like which can be contained in the molten steel, so that the production quality of the continuous casting steel cannot be influenced after the molten steel is dissolved and the production quality of the continuous casting steel is ensured.
The utility model provides a pair of change accuse of external mouth of a river and flow device, it should be understood, above-mentioned embodiment is only for the explanation the utility model discloses a technical conception and characteristics, its aim at let the personage of familiar with this technique can understand the utility model discloses a content is according to with the implementation, can not restrict with this the utility model discloses a protection scope. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (3)
1. The utility model provides a change accuse of outer mouth of a river and flow device which characterized in that: the flow control device comprises a flow control device body (1), wherein the flow control device body (1) is divided into a shell (2), a zirconia lining (3), an iron shell (4) and a flow control cup (5), the shell (2) is of an integral structure, the zirconia lining (3) is located on the inner side of the shell (2), the iron shell (4) is located on the outer portion of the shell (2), the flow control cup (5) is arranged on the inner side of the top of the zirconia lining (3), the top of the flow control cup (5) and the top of the shell (2) are located on the same plane, the diameter of an inner cavity of the flow control cup (5) is 0.2-0.9 times of the diameter of the inner cavity of the zirconia lining (3), and the flow control time of the flow control cup (5) is 10-30 seconds.
2. The flow control device for replacing the external nozzle according to claim 1, wherein: the flow control cup (5) is inlaid at the top of the zirconia lining (3) through fire clay.
3. The flow control device for replacing the external nozzle according to claim 1, wherein: the center lines of the shell (2), the zirconia lining (3) and the flow control cup (5) are superposed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120677322.5U CN215279864U (en) | 2021-04-03 | 2021-04-03 | Flow control device for replacing externally hung water gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120677322.5U CN215279864U (en) | 2021-04-03 | 2021-04-03 | Flow control device for replacing externally hung water gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215279864U true CN215279864U (en) | 2021-12-24 |
Family
ID=79535470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120677322.5U Active CN215279864U (en) | 2021-04-03 | 2021-04-03 | Flow control device for replacing externally hung water gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215279864U (en) |
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2021
- 2021-04-03 CN CN202120677322.5U patent/CN215279864U/en active Active
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