CN219665109U - Connecting device for reconnection of pouring basket casting flow - Google Patents
Connecting device for reconnection of pouring basket casting flow Download PDFInfo
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- CN219665109U CN219665109U CN202320246368.0U CN202320246368U CN219665109U CN 219665109 U CN219665109 U CN 219665109U CN 202320246368 U CN202320246368 U CN 202320246368U CN 219665109 U CN219665109 U CN 219665109U
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- reconnection
- main shaft
- casting
- bars
- connecting piece
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- 238000005266 casting Methods 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 1
- 238000009749 continuous casting Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model relates to the technical field of metallurgical continuous casting, and discloses a connecting device for reconnection of pouring basket casting streams, which comprises a blank shell and a connecting piece inserted in the blank shell, wherein the connecting piece comprises a main shaft, a plurality of transverse steel bars and a plurality of longitudinal steel bars, the transverse steel bars are fixedly welded on the side wall of the main shaft, the transverse steel bars are uniformly distributed in a ring shape, and two longitudinal steel bars are fixedly welded at the bottom of each transverse steel bar. The utility model uses the connecting piece to quickly solidify the newly injected molten steel and the casting blank in the crystallizer together, so that the joint is fully welded, thereby avoiding the phenomenon of breaking the joint during reconnection.
Description
Technical Field
The utility model relates to the technical field of metallurgical continuous casting, in particular to a connecting device for reconnecting a pouring basket casting stream.
Background
The production process of continuous casting is that molten steel in a large ladle is injected into a tundish, then is injected into each flow crystallizer through the shunt effect of the tundish, forms casting blanks with certain blank shell thickness through forced cooling, and then enters a secondary cooling chamber and a tertiary cooling chamber through the power effect of a withdrawal and straightening machine to be continuously cooled and finally be completely solidified. Cutting and conveying to steel rolling.
In the pouring process of the tundish, the casting flow is interrupted due to the following reasons, namely 1, the casting flow is interrupted due to the fact that the refractory materials in the tundish fall off and are flushed to the water gap part after the individual flows are dropped; 2. the casting temperature is lower, the casting flow is contracted, and the casting is interrupted; 3. the casting flow is temporarily interrupted due to the casting flow equipment problem or operation problem; 4. and (5) performing hot exchange on the tundish, interrupting all casting flows, and reconnecting and continuing to cast after the new ladle is in place. After the casting flow is interrupted, the flow needs to be restored to be poured at the fastest speed, new molten steel is injected into the crystallizer through the oxygen burning pipe for drainage, the new molten steel and a blank shell in the crystallizer are quickly solidified to form a joint, and the newly injected molten steel and the old blank shell at the joint are fully welded to ensure that the reconnection is successful.
When the cast flow needs to be reconnected, in the prior art, an operator repeatedly moves up and down in the crystallizer by using an online sleeve, so that an old molten steel liquid core in a blank shell is dipped, a pit is formed in the old molten steel liquid core, new molten steel is injected, solidification between the new molten steel and the old blank shell is slow, a groove is needed to be swung for waiting after the molten steel is injected, the joint cannot be sufficiently solidified, the phenomenon that the joint is easily broken under the resistance of the crystallizer, a two-cold-chamber supporting roller and the like after a withdrawal and straightening machine is started is caused, the reconnection is unsuccessful, the blank shell can stay in the crystallizer, the processing is difficult, the labor intensity of the operator is increased, and the single-flow shutdown is needed for 2-3 hours, so that the operation rate of the casting machine is reduced.
Disclosure of Invention
The utility model aims to solve the problems in the background art and provides a connecting device for reconnecting a pouring basket casting flow.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides a connecting device for pouring basket casting flow reconnection, includes the base shell and inserts the connecting piece of establishing in the base shell, the connecting piece includes main shaft, many horizontal reinforcing bars and many longitudinal bars, many horizontal reinforcing bars fixed welding is on the lateral wall of main shaft, and many horizontal reinforcing bars are annular evenly distributed, every two longitudinal bars of the equal fixed welding in bottom of horizontal reinforcing bars.
Preferably, a hanging lug is fixedly welded at the center of the top end of the main shaft.
Preferably, the spindle comprises ribbed screw steel, the length of the spindle is 600mm and the diameter of the spindle is 32mm.
Preferably, the number of the transverse steel bars is four, the length of the transverse steel bars is 50mm, and the diameter of the transverse steel bars is 16mm.
Preferably, the length of the longitudinal steel bar is 250mm, and the diameter of the longitudinal steel bar is 16mm.
Preferably, the transverse steel bars are fixedly welded at the position 250mm above the bottom end of the main shaft.
Compared with the prior art, the utility model provides a connecting device for reconnection of a pouring basket casting flow, which has the following beneficial effects:
1. this connecting device for pouring box casting stream reconnection plays the connection effect between newly injected molten steel and old shell through inserting the connecting piece into the shell in the crystallizer, prior art dips in the liquid core, only relies on the connection of shell itself, the connection is infirm, this kind of mode has played the effect of double insurance, guaranteed that newly injected molten steel solidifies fast with the casting blank in the crystallizer in one, the seam is abundant, guaranteed the fastness of joint, can resist the resistance that comes from crystallizer itself and two cold chamber backing rolls etc. when drawing the blank, the joint of being convenient for passes through the withdrawal and straightening machine smoothly, joint department stretch-break's phenomenon when having solved the reconnection.
2. This connecting device for pouring basket casting flow reconnection utilizes main shaft and many horizontal reinforcing bars and vertical reinforcing bar to form the connecting piece for the connecting piece can absorb heat fast when inserting in the base shell and make the molten steel fully solidify, need not the pendulum groove and excessively wait, thereby be favorable to improving reconnection efficiency, in addition, need not to dip in the liquid core after utilizing the connecting piece, not only reduced the molten steel extravagant, also stopped personnel's risk of scalding.
The device has no part which is the same as or can be realized by adopting the prior art, and the utility model utilizes the connecting piece to quickly solidify the newly injected molten steel and the casting blank in the crystallizer together, so that the joint is fully welded, thereby avoiding the phenomenon of breaking the joint during reconnection.
Drawings
FIG. 1 is a schematic diagram of a connecting device for reconnection of a tundish casting stream according to the present utility model;
fig. 2 is a perspective view of a connector according to the present utility model.
In the figure: 1. a blank shell; 2. a connecting piece; 201. a main shaft; 202. transverse steel bars; 203. longitudinal steel bars; 3. and (5) hanging the ear.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-2, a connecting device for reconnection of pouring basket casting flow comprises a blank shell 1 and a connecting piece 2 inserted in the blank shell 1, wherein the connecting piece 2 comprises a main shaft 201, a plurality of transverse steel bars 202 and a plurality of longitudinal steel bars 203, the main shaft 201 comprises ribbed screw steel, the stability of the casting flow reconnection is improved, the length of the main shaft 201 is 600mm, the diameter of the main shaft 201 is 32mm, a hanging lug 3 is fixedly welded at the center of the top end of the main shaft 201, and the hanging lug 3 is lifted by a slag dragging rod, so that the connecting piece 2 is conveniently inserted into the blank shell 1 of a crystallizer.
Referring to fig. 1-2, a plurality of transverse steel bars 202 are fixedly welded on the side wall of a main shaft 201, the plurality of transverse steel bars 202 are uniformly distributed in a ring shape, the transverse steel bars 202 are fixedly welded at the position 250mm above the bottom end of the main shaft 201, the number of the transverse steel bars 202 is four, the length of the transverse steel bars 202 is 50mm, the diameter of each transverse steel bar 202 is 16mm, two longitudinal steel bars 203 are fixedly welded at the bottom of each transverse steel bar 202, the length of each longitudinal steel bar 203 is 250mm, the diameter of each longitudinal steel bar 203 is 16mm, and the four transverse steel bars 202 are matched with eight longitudinal steel bars 203, so that not only can the stability of cast current reconnection be further improved, but also heat can be quickly absorbed to enable new molten steel to be quickly solidified between a blank shell 1 and a connecting piece 2 after being injected.
Working principle: four transverse steel bars 202 are uniformly welded at the position 250mm above the bottom end of a main shaft 201, two longitudinal steel bars 203 are welded at the bottom of each transverse steel bar 202, finally, a hanging lug 3 is welded at the top end of the main shaft 201 to form a connecting piece 2, when the casting flow is interrupted and needs to be connected again, the connecting piece 2 is inserted into a crystallizer for two seconds by a slag dragging rod, the slag dragging rod is taken away after the hanging lug 3 is lifted, the lower half part of the connecting piece 2 is fully inserted into a blank shell 1, at the moment, the connecting piece 2 can absorb heat quickly, the uncoagulated molten steel in the blank shell 1 can be solidified quickly into a whole with the connecting piece 2, then, an oxygen burning pipe is used for drainage, new molten steel is injected, the newly injected molten steel can be solidified quickly through the heat absorption of the connecting piece 2, the sufficient welding at the joint is guaranteed, the new molten steel and the old molten steel are fused into a whole, and finally, an operator starts a withdrawal and pulls out the casting blank, so that the reconnection is successful.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides a connecting device for pouring basket casting stream reconnection, includes the base shell and inserts the connecting piece of establishing in the base shell, its characterized in that, the connecting piece includes main shaft, many horizontal reinforcing bars and many longitudinal bars, many horizontal reinforcing bars fixed welding is on the lateral wall of main shaft, and many horizontal reinforcing bars are annular evenly distributed, every two longitudinal bars of the bottom all fixed welding of horizontal reinforcing bars.
2. The connection device for reconnection of a tundish casting stream according to claim 1, wherein a hanger is fixedly welded at the center of the top end of the main shaft.
3. A tundish casting flow reconnection connection according to claim 1, characterised in that the main shaft comprises ribbed screw steel, the length of the main shaft is 600mm and the diameter of the main shaft is 32mm.
4. The connection device for reconnection of a tundish casting stream according to claim 1, wherein the number of the transverse reinforcing bars is four, the length of the transverse reinforcing bars is 50mm, and the diameter of the transverse reinforcing bars is 16mm.
5. A tundish casting reconnection connection according to claim 1, wherein the length of the longitudinal rebars is 250mm and the diameter of the longitudinal rebars is 16mm.
6. The connection device for reconnection of casting flows of a tundish according to claim 1, wherein the transverse reinforcing steel bars are fixedly welded at the position 250mm above the bottom end of the main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320246368.0U CN219665109U (en) | 2023-02-17 | 2023-02-17 | Connecting device for reconnection of pouring basket casting flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320246368.0U CN219665109U (en) | 2023-02-17 | 2023-02-17 | Connecting device for reconnection of pouring basket casting flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219665109U true CN219665109U (en) | 2023-09-12 |
Family
ID=87898610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320246368.0U Active CN219665109U (en) | 2023-02-17 | 2023-02-17 | Connecting device for reconnection of pouring basket casting flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219665109U (en) |
-
2023
- 2023-02-17 CN CN202320246368.0U patent/CN219665109U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |