CN206435730U - Vacuum continuous casting system - Google Patents
Vacuum continuous casting system Download PDFInfo
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- CN206435730U CN206435730U CN201720028440.7U CN201720028440U CN206435730U CN 206435730 U CN206435730 U CN 206435730U CN 201720028440 U CN201720028440 U CN 201720028440U CN 206435730 U CN206435730 U CN 206435730U
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- vacuum chamber
- vacuum
- ladle
- continuous casting
- impact zone
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Abstract
The utility model discloses a kind of vacuum continuous casting system, including ladle and tundish, ladle nozzle below ladle is provided with slide plate, tundish includes impact zone and pouring area, impact zone is connected by steel flow point distribution with pouring area, also include vacuum chamber, the mouth suitable for reading and lower of vacuum chamber is equipped with sealing device, vacuum chamber is placed between ladle and impact zone, its sealing suitable for reading suitable for reading with lower mouth respectively with the lower mouth, impact zone of ladle nozzle is docked, the upper end of vacuum chamber is provided with sealed valve, and vacuum chamber is communicated to vavuum pump by vacuum valve；The steel plate that steel flow point distribution thickness is less than or equal to 8mm pours into a mould sealing.Vacuum continuous casting system of the present utility model, can be achieved to be thoroughly degassed whole molten steel, and cost is low, and flow is simple.
Description
Technical field
The utility model is related to field of steel-making, and in particular to a kind of vacuum continuous casting system.
Background technology
With development of modern industry, ferrous materials are proposed with high-quality and inexpensive both sides requirement, traditional spy
The production of different steel uses converter（Electric furnace）- external refining-vacuum（RH/VD）- continuous casting flow is produced.
Using converter（Electric furnace）- external refining-vacuum（RH/VD）- continuous casting flow produces special steel, in order to reduce special steel
The content of gas in molten steel, generally using RH/VD technologies, the incomplete processing and molten steel and vacuum contact due to molten steel are incomplete
Contact, although increase time and the vacuum of application of vacuum, but the effect of special steel liquid steel degassing（Gas in molten steel contains
Amount）It is still undesirable.
In addition, vacuum（RH/VD）Flow is complicated and cost is higher.
The content of the invention
The purpose of this utility model is：There is provided one kind can be thoroughly degassed to molten steel, and flow is simple, the low vacuum of cost
Continuous casting system.
The utility model is achieved through the following technical solutions：Vacuum continuous casting system, including ladle and tundish, ladle
The ladle nozzle of lower section is provided with slide plate, and tundish includes impact zone and pouring area, and impact zone passes through steel flow point distribution and pouring area
Connection, in addition to vacuum chamber, the mouth suitable for reading and lower of vacuum chamber is equipped with sealing device, by vacuum chamber be placed in ladle and impact zone it
Between, vacuum chamber it is suitable for reading between ladle nozzle, the lower mouth of vacuum chamber and impact zone it is suitable for reading between it is close through the sealing device
Envelope docking, the upper end of vacuum chamber is provided with sealed valve, and vacuum chamber is communicated to vavuum pump by vacuum valve；The steel flow point distribution is used
Thickness is less than or equal to 8mm steel plate cast sealing.
It is used as further preferred scheme：The rubber seal of sealing device including middle part, the cast bed of material of inner side and outer
The water-cooling ring of side, the lower mouth of ladle nozzle and the suitable for reading of impact zone are butted up against in rubber seal, extrude to form close by gravity
Envelope.
It is used as further preferred scheme：Also include vacuum chamber rotating lifting gear, vacuum chamber rotating lifting gear includes
Turntable, vertical beam, crossbeam, lifting hydraulic cylinder and rotating driving device, vertical beam is on turntable, and one end of crossbeam is slidingly attached to
Vertical beam, the other end is fixedly attached to vacuum chamber, and lifting hydraulic cylinder drives the crossbeam to be moved up and down along vertical beam on turntable,
The rotating driving device drives the turntable rotation.
It is used as further preferred scheme：The vacuum chamber is provided with observation window.
It is used as further preferred scheme：The vacuum chamber is highly 2000~4000mm, a diameter of 800~1500mm.
Compared with prior art, the utility model has the advantages that：
Vacuum continuous casting system of the present utility model, can be achieved to be thoroughly degassed whole molten steel, and cost is low, flow letter
It is single.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is schematic diagram of sealing device.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
As shown in figure 1, vacuum continuous casting system, including ladle 1 and tundish 2, the ladle nozzle 3 of the lower section of ladle 1 is provided with cunning
Plate 4, slide plate 4 includes pouring area 21 and impact zone 5 by hydraulic cylinder control, tundish 2, and impact zone 5 is by steel flow point distribution 6 with pouring
Note area 21 is connected, in addition to vacuum chamber 7, and the mouth suitable for reading and lower of vacuum chamber 7 is equipped with sealing device 8, vacuum chamber 7 is placed in into ladle
Between 1 and impact zone 5, its lower mouth, sealed device 8 suitable for reading of impact zone 5 suitable for reading with lower mouth respectively with ladle nozzle 3 is sealed
Docking, the upper end of vacuum chamber 7 is provided with sealed valve 71, and vacuum chamber 7 is communicated to vavuum pump 10 by vacuum valve；The steel stream distribution
The steel plate that the thickness of hole 6 is less than or equal to 8mm is sealed（Steel plate is cast on slag blocking wall）.
Also include vacuum chamber rotating lifting gear 9, vacuum chamber rotating lifting gear 9 includes turntable 91, vertical beam 92, crossbeam
93rd, lifting hydraulic cylinder 94 and rotating driving device, vertical beam 92 is on turntable 91, and one end of crossbeam 93 is slidingly attached to vertical beam
92, the other end is fixedly attached to vacuum chamber 7, and lifting hydraulic cylinder 94 drives the crossbeam 93 along along vertical beam 92 on turntable 91
Lower motion, the rotating driving device drives the turntable 91 to rotate.
Concrete operations of the vacuum continuous casting system of the present utility model in degassing casting process are as follows：
Preparatory stage：
1）Baked tundish 2 reaches cast position and finished with crystallizer centering；
2）Vacuum chamber rotating lifting gear 9 rotates vacuum chamber 7 to the top of impact zone 5 of tundish 7, declines and impact zone
5 Butt sealings suitable for reading；
3）Sealed valve 71 is closed, vacuum valve is opened, vavuum pump 10 starts forvacuum；
4）Ladle 1 is rotated to cast position, ladle nozzle 3 and 8 pairs of the sealing device suitable for reading of vacuum chamber 7 by bale panoramic tables
In, bale panoramic tables decline, and make the two Butt sealing.
The vacuum pouring stage：
Sealed valve 71 is opened, vacuum chamber 7 is realized with ladle nozzle 3 and connected, slide plate 4 is opened, molten steel flows from ladle 1
Go out and inject impact zone 5 by vacuum chamber 7, now, because being sealed up before steel flow point distribution 6 with steel plate, vacuum chamber 7 and punching
Hit area 5 and form closed space, the vacuum that adjustment vacuum valve aperture steps up vacuum chamber 7 is de-gassed to molten steel.
The deaeration stage of molten steel：
Control the aperture of slide plate 4, it is ensured that steel flow point distribution 6 is sealed rapidly by molten steel（Poured opening in 2-3 minutes impact zones 5
When molten steel reaches 1.5m or so, the flow of molten steel is adjusted, it is ensured that the steel plate of sealing steel flow point distribution 6 melts in time, molten steel moment
Entered by steel flow point distribution 6 in tundish 2, while being sealed in itself to steel flow point distribution 6 by molten steel）.Lifting is true
The vacuum of empty room 7 reaches technological requirement（100Pa）, when the liquid level of tundish 2 reach open pour liquid level when, be normally carried out continuous casting and pour
Note operation.Because the molten steel in ladle 1 needs that all pouring area 21 can be reached by vacuum chamber 7, the steel in vacuum chamber 7 in addition
Stream is in disperse droplet shape, and not only effect is good for liquid steel degassing, and ensures that molten steel is thoroughly degassed.
Change the ladle stage：
After the molten steel in ladle 1 has been poured, the slide plate 4 of ladle nozzle 3 is closed in time, the close of the upper end of vacuum chamber 7 is turned off
Valve 71 is sealed, the aperture of vacuum valve is adjusted, it is ensured that the vacustat of vacuum chamber 7.Rotation bale panoramic tables continue next Baogang in time
Next ladle 1 is rotated to cast position by water, bale panoramic tables, realizes the circulation of a continuous casting, and program is simple, through reality
The nitrogen content of gas reduces the hydrogen content of gas in 33%, steel than RH/VD reductions 0.5ppm than RH/VD in measurement, steel.
As shown in Fig. 2 sealing device 8 includes the rubber seal 81 at middle part, the cast bed of material 82 and the water in outside of inner side
Cold ring 83, the lower mouth of ladle nozzle 3 and the suitable for reading of impact zone 5 are butted up against in rubber seal 81, extrude to form close by gravity
Envelope.It is simple in construction, it is with low cost.
The vacuum chamber 7 is provided with observation window 72.The height of vacuum chamber 7 be 2000~4000mm, a diameter of 800~
1500mm, can suitably be adjusted according to equipment, technological parameters such as actual ladle, ladle nozzle stream steel amounts.
Claims (5)
1. vacuum continuous casting system, including ladle（1）And tundish（2）, ladle（1）The ladle nozzle of lower section（3）Provided with slide plate
（4）, tundish（2）Including pouring area（21）And impact zone（5）, impact zone（5）Pass through steel flow point distribution（6）With pouring area（21）
Connection, it is characterised in that：Also include vacuum chamber（7）, vacuum chamber（7）Mouth suitable for reading and lower be equipped with sealing device（8）, vacuum chamber
（7）It is placed in ladle（1）And impact zone（5）Between, vacuum chamber（7）Suitable for reading and ladle nozzle（3）Between, vacuum chamber（7）Under
Mouth and impact zone（5）It is suitable for reading between through the sealing device（8）Sealing docking, vacuum chamber（7）Upper end be provided with sealed valve
（71）, vacuum chamber（7）Vavuum pump is communicated to by vacuum valve（10）；The steel flow point distribution（6）It is less than or equal to 8mm's with thickness
Steel plate cast sealing.
2. vacuum continuous casting system according to claim 1, it is characterised in that：Sealing device（8）Rubber including middle part is close
Seal（81）, inner side the cast bed of material（82）With the water-cooling ring in outside（83）, ladle nozzle（3）Lower mouth and impact zone（5）'s
It is suitable for reading to butt up against rubber seal（81）On, extrude to form sealing by gravity.
3. vacuum continuous casting system according to claim 1, it is characterised in that：Also include vacuum chamber rotating lifting gear（9）,
Vacuum chamber rotating lifting gear（9）Including turntable（91）, vertical beam（92）, crossbeam（93）, lifting hydraulic cylinder（94）Driven with rotation
Dynamic device, vertical beam（92）Located at turntable（91）On, crossbeam（93）One end be slidingly attached to vertical beam（92）, the other end is fixedly connected
To vacuum chamber（7）, lifting hydraulic cylinder（94）Located at turntable（91）On, drive the crossbeam（93）Along vertical beam（92）Move up and down,
The rotating driving device drives the turntable（91）Rotation.
4. vacuum continuous casting system according to claim 1, it is characterised in that：The vacuum chamber（7）It is provided with observation window
（72）.
5. vacuum continuous casting system according to claim 1, it is characterised in that：The vacuum chamber（7）Highly for 2000~
4000mm, a diameter of 800~1500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720028440.7U CN206435730U (en) | 2017-01-11 | 2017-01-11 | Vacuum continuous casting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720028440.7U CN206435730U (en) | 2017-01-11 | 2017-01-11 | Vacuum continuous casting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206435730U true CN206435730U (en) | 2017-08-25 |
Family
ID=59642360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720028440.7U Active CN206435730U (en) | 2017-01-11 | 2017-01-11 | Vacuum continuous casting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206435730U (en) |
-
2017
- 2017-01-11 CN CN201720028440.7U patent/CN206435730U/en active Active
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