CN209867299U - Dummy bar and casting blank connecting piece for vertical round billet continuous casting machine - Google Patents
Dummy bar and casting blank connecting piece for vertical round billet continuous casting machine Download PDFInfo
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- CN209867299U CN209867299U CN201822231602.4U CN201822231602U CN209867299U CN 209867299 U CN209867299 U CN 209867299U CN 201822231602 U CN201822231602 U CN 201822231602U CN 209867299 U CN209867299 U CN 209867299U
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- dummy bar
- connecting piece
- casting
- splash guard
- bottom plate
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Abstract
The utility model relates to a dummy bar and casting blank connecting piece for vertical round billet conticaster, including bottom plate, backup pad, splash shield, pull rod, hook plate and fitting pin, the connecting piece is installed in dummy bar top during the use to along with the dummy bar entering crystallizer copper intraductal preset position downwards, initial liquid molten steel is after connecting piece, cold charge and crystallizer cool off fast when casting is opened in the continuous casting, and the molten steel solidifies as an organic whole casting blank with the connecting piece, thereby reliably is connected with the dummy bar. The connecting piece is simple in structure and easy to process and install, the casting blank and the dummy bar are reliably connected, the condition that the dummy bar and a crystallizer copper pipe are damaged by splashing steel due to the molten steel which is poured in the casting process is avoided, and the condition that the liquid level greatly fluctuates and steel leakage is caused by loose connection after the throwing is started is avoided.
Description
Technical Field
The utility model belongs to the technical field of the metal continuous casting, especially, relate to a dummy bar and casting blank connecting piece for vertical round billet conticaster.
Background
In the vertical round billet continuous casting production, the dummy bar and the casting blank connecting piece are used for connecting the casting blank and the dummy bar into a whole, so that the dummy bar can guide the continuous casting blank to synchronously descend along the vertical direction after the blank drawing is started. The connecting piece used by the existing vertical round billet continuous casting machine has the defects of complex structure, difficult processing and installation, severe damage to a dummy bar and a crystallizer copper pipe caused by molten steel impact and steel splash during casting, insecure connection with the dummy bar, easy liquid level fluctuation and casting leakage, and low production efficiency and high cost of vertical continuous casting.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that dummy bar and casting blank connecting piece exist among the vertical round billet continuous casting production technology at present, the utility model provides a dummy bar and casting blank connecting piece.
The utility model provides a technical scheme that its technical problem adopted is so realized: the utility model provides a dummy bar and casting blank connecting piece for vertical round billet conticaster, comprising a base plate, the splash shield, the backup pad, the hook plate, the pull rod, the fitting pin, splash shield diameter ratio bottom plate diameter is little 20-30mm, by being no less than 4 symmetrical arrangement's arc steel sheet group, it has 8 at least diameters to be 25-50 mm's round hole to open in splash shield and the backup pad, the splash shield height is not less than 400mm, the splash shield, backup pad and bottom plate combination welding become cask type structure, the pull rod in splash shield and the backup pad is the cylinder that both ends set up the pinhole, the pull rod compresses tightly the bottom plate through the fitting pin, the splash shield, the backup pad, the hook plate in dummy bar top.
The connecting piece enters the crystallizer copper pipe along with the dummy bar, and the bottom plate of the connecting piece is positioned at the position of the 200mm upwards from the bottom of the crystallizer copper pipe.
The beneficial effects of the utility model are that, dummy bar and casting blank connecting piece simple structure, easily processing and installation, the connecting piece has blockked to open when opening to water and has watered the molten steel impact and splash steel, avoids damaging dummy bar and crystallizer copper pipe, and the molten steel solidifies back connecting piece with casting blank and dummy bar firm connection as an organic whole, and the dummy bar guide casting blank is down along the vertical direction is synchronous after the continuous casting throwing starts, avoids throwing to start to connect not hard up to cause the liquid level to fluctuate by a wide margin and open to water the breakout after the starting.
Drawings
Fig. 1 is a schematic structural diagram of the connecting member of the present invention.
Fig. 2 is a schematic view of the connector of the present invention.
Shown in the figure are: 1, a bottom plate; 2, a splash guard; 3, supporting plates; 4, a pull rod; 5, hooking a plate; 6, locking pins; 7 a dummy bar; 8, connecting pieces; 9 crystallizer copper pipe; 10 asbestos cord; 11 nailing scraps; 12 reinforcing steel bar sections; 13 submerged entry nozzle.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in figure 1, the connecting piece is formed by combining a bottom plate 1, a splash shield 2, a support plate 3, a hook plate 5, a pull rod 4 and a locking pin 6, and the connecting plate is made of common carbon steel. The diameter of the bottom plate 1 is 10mm less than that of the dummy bar 7, the diameter of the splash guard 2 is 20-30mm less than that of the bottom plate 1, the height of the splash guard 2 is not lower than 400mm, the lower part of the splash guard 2 is provided with round holes which are not less than 8 uniform distribution and have the diameter of 50mm, the two ends of the support plate 3 are provided with round holes which are not less than 4 uniform distribution and have the diameter of 25mm, the diameter of the hook plate 5 is 80-200mm greater than that of the pull bar 4, the bottom plate 1 and the splash guard 2 are welded and formed in advance, the pull bar 4 is arranged through the locking pin 6 on the pull bar 4 during installation, the bottom plate 1, the splash guard 2, the support plate 3 and the hook plate.
As shown in figure 2, when in use, the connecting piece 8 enters the crystallizer copper pipe 9 along with the dummy bar 7, the dummy bar 7 is positioned at the position of the bottom of the copper pipe which is 150 plus 200mm upwards, asbestos ropes 10 and nail scraps 11 with the thickness of 10mm are arranged between the connecting piece 8 and the dummy bar 7 as well as the crystallizer copper pipe 9, reinforcing steel bar sections 12 are uniformly distributed in the connecting piece 8 as cold materials, and the total weight of the reinforcing steel bar sections 12 is 5-8% of the weight of the molten steel in the crystallizer copper pipe during casting. Before casting, the submerged nozzle 13 extends into the connecting piece, the bottom of the submerged nozzle 13 is 10-30mm away from the connecting piece, molten steel is cast in the connecting piece 8 through the submerged nozzle 13 during casting, and is rapidly cooled through the connecting piece 8, the steel bar section 12 and the crystallizer copper pipe 9 and then is solidified into a whole with the connecting piece 8, so that a solidified casting blank is firmly connected with the dummy bar, and when continuous casting and pulling are started, the dummy bar guides the casting blank to synchronously descend along the vertical direction.
Claims (2)
1. The utility model provides a dummy bar and casting blank connecting piece for vertical round billet caster, includes bottom plate (1), splash shield (2), backup pad (3), hook plate (5), pull rod (4), fitting pin (6), its characterized in that: the diameter of the splash guard (2) is 20-30mm smaller than that of the bottom plate (1), and the splash guard is composed of at least 4 arc-shaped steel plates which are symmetrically arranged, at least 8 round holes with the diameters of 25-50mm are formed in the splash guard (2) and the support plate (3), the height of the splash guard (2) is not lower than 400mm, the splash guard (2), the support plate (3) and the bottom plate (1) are welded into a barrel-shaped structure in a combined mode, the pull rods (4) on the splash guard (2) and the support plate (3) are cylinders with pin holes formed in two ends, and the pull rods (4) tightly press the bottom plate (1), the splash guard (2), the support plate (3) and the hook plate (5) on the top of the dummy bar (7) through locking pins (6).
2. The dummy bar and billet connection member for a vertical round billet continuous casting machine according to claim 1, wherein: the connecting piece (8) enters the crystallizer copper pipe (9) along with the dummy bar (7) downwards, and the bottom plate (1) of the connecting piece (8) is positioned at the position of 200mm upwards from the bottom of the crystallizer copper pipe (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822231602.4U CN209867299U (en) | 2018-12-28 | 2018-12-28 | Dummy bar and casting blank connecting piece for vertical round billet continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822231602.4U CN209867299U (en) | 2018-12-28 | 2018-12-28 | Dummy bar and casting blank connecting piece for vertical round billet continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209867299U true CN209867299U (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822231602.4U Active CN209867299U (en) | 2018-12-28 | 2018-12-28 | Dummy bar and casting blank connecting piece for vertical round billet continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209867299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299530A (en) * | 2020-04-20 | 2020-06-19 | 中冶京诚工程技术有限公司 | Dummy bar head and continuous casting machine for hollow round billet |
-
2018
- 2018-12-28 CN CN201822231602.4U patent/CN209867299U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299530A (en) * | 2020-04-20 | 2020-06-19 | 中冶京诚工程技术有限公司 | Dummy bar head and continuous casting machine for hollow round billet |
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