CN202741729U - Special accident flashboard for intermediate container - Google Patents
Special accident flashboard for intermediate container Download PDFInfo
- Publication number
- CN202741729U CN202741729U CN 201220342352 CN201220342352U CN202741729U CN 202741729 U CN202741729 U CN 202741729U CN 201220342352 CN201220342352 CN 201220342352 CN 201220342352 U CN201220342352 U CN 201220342352U CN 202741729 U CN202741729 U CN 202741729U
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- CN
- China
- Prior art keywords
- flashboard
- emergency gate
- special
- intermediate container
- accident flashboard
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a special accident flashboard for an intermediate container. The accident flashboard comprises a front plate and a rear plate; the cross section of the front plate along the length direction of the flashboard is a right-angle triangle, and the cross section of the rear plate along the length direction of the accident flashboard is rectangle. The special accident flashboard is characterized in that the accident flashboard is made of carbon-manganese alloy steel, and the vertex angle of the front plate is 20-35 degrees. The special accident flashboard for the intermediate container is easy and simple to operate, and low in manufacturing cost, and can be repeatedly used for over twice; and molten steel flowing out from an immersive water gap can be effectively blocked after the intermediate container stops pouring. The usage amount of the accident flashboard can be effectively reduced; a cover board of a crystallizer is protected; and the personal safety of post operation personnel is guaranteed, and the work environment is also improved.
Description
Technical field
The utility model relates to the device that cuts off steel flow in a kind of continuous casting process process, more particularly, relates to the special-purpose emergency gate of a kind of pans.
Background technology
Continuous casting is the strand new technology that liquid metals is cast into continuously certain section configuration through one group of special cooling and bracing or strutting arrangement, and continuous casting steel machine and traditional mould are annotated steel technique and compared the plurality of advantages such as have that production process is simplified, recovery rate of iron is high, energy resource consumption is low, automaticity is high, high productivity, slab quality are good.
In the continuous casting steel machine process, pans are the containers that hold molten steel that connect steel ladle and crystallizer, have the functions such as decompression, shunting, removal of inclusions and storage molten steel, can realize sequence casting.The control of pans steel stream generally is divided into two kinds of forms, and a kind of is metering nozzle; Another kind of is stopper+submersed nozzle (form that adopts slide gate nozzle is also arranged).
Owing to improving constantly that Cleanliness of Molten Steel requires, in order accurately to control type and the form of field trash, often molten steel is carried out calcification processing.But through the molten steel of calcification processing, strengthened molten steel to the etch of pans refractory material and wash away, particularly to adopting the pans of stopper+submersed nozzle flow control, the etch of its stopper aggravates, and has a strong impact on the service life of pans.In the basket pouring process, because stream appears closing in the notes in the problems such as rhythm of production inevitably, and cast also will be closed every stream after finishing, and stopper can not effectively be blocked immersion water gap bowl section, molten steel still happens occasionally from the situation that submersed nozzle flows out, to this, must use emergency gate that molten steel is sealed, but the emergency gate that uses at present is yielding, molten steel often occurs fitting badly, and emergency gate is burned, molten steel overflows, and service life low (only can use once), cause the accident treatment difficulty, labour intensity is large, and the emergency gate use amount is larger.
The utility model content
For the deficiencies in the prior art, one of the purpose of this utility model is to solve the one or more problems that exist in the above-mentioned prior art.
The purpose of this utility model is to provide a kind of life-span to grow and can effectively block the special-purpose emergency gate of molten steel.
To achieve these goals, the utility model provides a kind of pans special-purpose emergency gate, described emergency gate comprises leading portion plate and back segment plate, the cross section along the emergency gate length direction of leading portion plate is right angled triangle, the cross section along the emergency gate length direction of back segment plate is rectangle, described emergency gate is made by carbon-manganese steel, and the drift angle of described leading portion plate is 20-35 °.
According to an embodiment of the special-purpose emergency gate of pans of the present utility model, described carbon-manganese steel is the 16Mn steel alloy.
The utility model is easy and simple to handle, manufacturing expense is lower; not only can effectively block pans and stop watering the molten steel that rear submersed nozzle flows out; and reusable more than 2 times; can effectively reduce the use amount of emergency gate; protection crystallizer cover plate guarantees post operation personnel's personal safety and improves working environment.
Description of drawings
Fig. 1 is the structural representation of emergency gate in the prior art.
Fig. 2 is the structural representation of the special-purpose emergency gate of pans of the utility model exemplary embodiment.
Description of reference numerals:
1-leading portion plate, 2-back segment plate.
The specific embodiment
Hereinafter, in connection with accompanying drawing exemplary embodiment of the present utility model is described in further detail.
Fig. 1 is the structural representation of emergency gate in the prior art.As shown in Figure 1, emergency gate is formed by grey cast-iron HT200 casting in the prior art, has following shortcoming:
(1) machining accuracy is relatively poor, has indivedual spot size accuracy errors;
(2) in production and application, find to exist the problem of being out of shape;
(3) because the apex angle α of leading portion plate is larger, swift and fierce not, resistance is larger when causing shutoff.
Because above shortcoming, emergency gate in use in the prior art, flashboard often occurring rolls not in place, or gapped bottom flashboard and the tundish, thereby molten steel appears fitting badly, the problem that emergency gate is burned, molten steel overflows, simultaneously enable emergency gate at every turn after, be burned or be out of shape because flashboard exists, flashboard all can only disposablely use.
In order to solve the problems of the technologies described above, the utility model improves emergency gate the prior art from material and structure two aspects.Fig. 2 is the structural representation of the special-purpose emergency gate of pans of the utility model exemplary embodiment.As shown in Figure 2, the emergency gate of the present embodiment comprises leading portion plate 1 and back segment plate 2, the cross section along the emergency gate length direction of leading portion plate 1 is right angled triangle, the cross section along the emergency gate length direction of back segment plate 2 is rectangle, and leading portion plate 1 can insert rapidly submersed nozzle and carry out shutoff.
In order to improve the intensity of emergency gate, the emergency gate of the present embodiment is made by carbon-manganese steel, this is to have utilized the performances such as the carbon manganese alloy hardness of steel is high, good toughness, high temperature resistant, easy processing, wear-resisting anti-erosion, shock resistance, aspect machining, can guarantee machining accuracy, thereby can reach and effectively block pans and stop watering the molten steel that rear submersed nozzle flows out, and can reach emergency gate and reuse effect more than 2 times.Preferably, above-mentioned carbon manganese alloy is the 16Mn steel alloy, and its specific chemical composition is as shown in table 1
The chemical composition of table 1 16Mn steel alloy
In addition, in order to reduce the shutoff resistance of emergency gate, prolonged the length of the leading portion plate 1 of emergency gate, the apex angle ss that also namely guarantees leading portion plate 1 is the drift angle angle of the 20-35 ° of leading portion plate 1 by reducing emergency gate, can be when emergency gate be enabled oil cylinder piston stretch out that rapid promotion emergency gate is faster along doorframe chute speed forward, resistance is less, have more to roll the function of cutting submersed nozzle, rapidly shutoff submersed nozzle wrist, prevent that molten steel from flowing out, and reaches the better effect of stifled stream.
During implementation, in the basket pouring process, close stream in occurring annotating or water inferior the end when stopper can not effectively be blocked immersion water gap bowl section and have molten steel to flow out, enable immediately the emergency gate hydraulic jack, oil cylinder piston stretches out rapid promotion pans of the present utility model specialty emergency gate along the doorframe chute submersed nozzle that breaks forward, shutoff submersed nozzle wrist prevents that molten steel from flowing out.
In sum, the special-purpose emergency gate of pans of the present utility model can effectively be blocked pans and stop watering the molten steel that rear submersed nozzle flows out, and prevents that molten steel from flowing out, and reaches the effect of stifled stream.This emergency gate is reusable more than 2 times, can effectively reduce the use amount of emergency gate, and protection crystallizer cover plate guarantees post operation personnel's personal safety, and improves working environment.In addition, easy to operate, to make simply, manufacturing expense is low, has promotional value.
Although the above illustrates and has described the special-purpose emergency gate of pans of the present utility model in conjunction with the embodiments, but what those skilled in the art will appreciate that is, in the situation that does not break away from the spirit and scope of the present utility model that limit such as claims, can make the various changes on form and the details here.
Claims (2)
1. the special-purpose emergency gate of pans, described emergency gate comprises leading portion plate and back segment plate, the cross section along the emergency gate length direction of leading portion plate is right angled triangle, the cross section along the emergency gate length direction of back segment plate is rectangle, it is characterized in that, described emergency gate is made by carbon-manganese steel, and the drift angle of described leading portion plate is 20-35 °.
2. the special-purpose emergency gate of pans according to claim 1 is characterized in that, described carbon-manganese steel is the 16Mn steel alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342352 CN202741729U (en) | 2012-07-16 | 2012-07-16 | Special accident flashboard for intermediate container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342352 CN202741729U (en) | 2012-07-16 | 2012-07-16 | Special accident flashboard for intermediate container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202741729U true CN202741729U (en) | 2013-02-20 |
Family
ID=47701177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220342352 Expired - Fee Related CN202741729U (en) | 2012-07-16 | 2012-07-16 | Special accident flashboard for intermediate container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202741729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355298A (en) * | 2020-11-09 | 2021-02-12 | 芜湖新兴铸管有限责任公司 | Continuous casting tundish accident flashboard device |
-
2012
- 2012-07-16 CN CN 201220342352 patent/CN202741729U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355298A (en) * | 2020-11-09 | 2021-02-12 | 芜湖新兴铸管有限责任公司 | Continuous casting tundish accident flashboard device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20170716 |