CN202824636U - Tundish cover plate - Google Patents
Tundish cover plate Download PDFInfo
- Publication number
- CN202824636U CN202824636U CN 201220531862 CN201220531862U CN202824636U CN 202824636 U CN202824636 U CN 202824636U CN 201220531862 CN201220531862 CN 201220531862 CN 201220531862 U CN201220531862 U CN 201220531862U CN 202824636 U CN202824636 U CN 202824636U
- Authority
- CN
- China
- Prior art keywords
- cover plate
- stopper
- hole
- metal threaded
- countersunk head
- 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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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model provides a tundish cover plate. The tundish cover plate comprises a cover plate shell in a steel structure. The inside of the cover plate shell and fireproof materials are integrally poured into a whole through anchoring parts. A long nozzle pouring hole is arranged in the middle of the cover plate shell. A drying hole and a stopper hole are formed in two sides of the long nozzle pouring hole. A stopper is tightly inserted in the stopper hole. The stopper comprises a stopper body, a metal threaded connecting piece embedded into the stopper body, and a connecting threaded rod matched with the metal threaded connecting piece. The stopper hole is in a big-end up countersunk head through hole structure. One section of the stopper body, corresponding to the metal threaded connecting piece, is located in an upper countersunk head of the stopper hole, and an annular gap is formed between the section and the upper countersunk head. The stopper hole in the big-end-up countersunk head through hole structure is formed in the cover plate shell, the metal threaded connecting piece can avoid a high-temperature area, service life of the metal threaded connecting piece is prolonged, and meanwhile the effects of heat insulation, splashing prevention, secondary oxidation reduction, and the like of the tundish cover plate are not affected.
Description
Technical field
The utility model relates to the tundish in the metallurgical continuous casting production, refers to particularly a kind of cover plate of pouring box.
Background technology
In steelmaking system, tundish is a kind of visual plant, is the intermediate receptacle between ladle and crystallizer, mainly is to be convenient to change ladle to realize even watering, reducing molten steel static pressure, stabilized steel discharge, the inclusion floating of impelling, storage and shunting molten steel.Tundish generally all is furnished with cover plate, and its Main Function is to play insulation effect when baking of tundish and casting, stops simultaneously molten steel and slag splash, and protection employee and device security improve operating environment.Cover plate of pouring box directly covers on tundish, and together cycling service of tundish.---dress stopper---upper continuous casting platform baking---the lower continuous casting platform cooling that the splendid attire molten steel---waters steel---that utilizes the tundish running flow process of stopper rod flow control to be: baking.
Existing cover plate of pouring box mostly is greatly plate shaped or arch, people have carried out a large amount of innovations and practice in order to improve the cover plate of pouring box life-span itself, such as document " transformation of steel plant continuous casting tundish cover " (plum mountain science and technology, 2003(3), 21-35), the patent No. is 200520039302.6 " tundish cover ", the patent No. is 02229393.0 " tundish cover " etc., these tundish covers have a common problem, and the high temperature when not considering baking in the tundish is on the impact of the metal connecting device in the stopper.Stopper rod of tundish the time can run into following problem in baking: on the intermediate package behind the stopper, need to toast at continuous casting platform, different and the rhythm of production needs according to the bag type, generally need online baking 2 ~ 3 hours, atmosphere temperature is up to more than 1300 ℃ in the baking bag in latter stage, the tundish inner wall temperature is about 1200 ℃, cover plate of pouring box is equivalent to a heat storage when baking simultaneously, metal connecting device in the stopper and cover plate of pouring box are basically at a horizontal level, make the metal connecting device in the stopper be in for a long time under the hot environment, cause its metal parts life-span to be reduced, even thawing fracture, affect the stopper bulk life time, and then safety and the direct motion of impact production.
Summary of the invention
The purpose of this utility model will provide a kind of cover plate of pouring box exactly, and the high temperature when toasting to eliminate in the tundish is to the adverse effect of stopper jockey.
For achieving the above object, the designed cover plate of pouring box of the utility model comprises the cover plate housing of steel construction, described cover plate enclosure interior is by anchoring piece and refractory material is integrated poured is integrated, be provided with the long nozzle tapping hole in the middle of the described cover plate housing, described long nozzle tapping hole both sides are provided with baking hole and stopper hole, described stopper closely is plugged with stopper in the hole, described stopper comprises the stopper body, be embedded in the intrinsic metal threaded connector of stopper, and the connecting screw rod that matches with metal threaded connector, the countersunk head through-hole structure that described stopper hole is big up and small down, corresponding to one section top countersunk head that is arranged in described stopper hole of metal threaded connector, and be formed with the annular gap between this section and the top countersunk head on the described stopper body.
As preferred version, the two ends of described cover plate housing are provided with the location leg.
The utility model has the advantage of: by the stopper hole of up big and down small countersunk head through-hole structure is set at the cover plate housing, guaranteed the space between metal threaded connector and the cover plate housing, make metal threaded connector avoid the high-temperature region, thereby effectively reduce the temperature in this position bake process, improve the life-span of metal threaded connector, guarantee the safety of stopper result of use and production with smoothly, do not affect simultaneously cover plate of pouring box heat-insulation and heat-preservation, antispray, alleviate the effect such as secondary oxidation.The two ends of cover plate housing are provided with the location leg, and installation and removal are convenient.
Description of drawings
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram at R place among Fig. 1.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Cover plate of pouring box shown in the figure, the cover plate housing 1 that comprises steel construction, cover plate housing 1 inside is by anchoring piece 2 and refractory material 10 integrated poured being integrated, be provided with long nozzle tapping hole 4 in the middle of the cover plate housing 1, long nozzle tapping hole 4 both sides are provided with baking hole 3 and stopper hole 5, the stopper hole 5 interior stoppers 6 that closely are plugged with, stopper 6 comprises stopper body 6a, be embedded in the metal threaded connector 6b in the stopper body 6a, and the connecting screw rod 6c that matches with metal threaded connector 6b, the countersunk head through-hole structure that stopper hole 5 is big up and small down, the upper one section top countersunk head that is arranged in described stopper hole 5 corresponding to metal threaded connector 6b of stopper body 6a, and be formed with the annular gap between this section and the top countersunk head, thereby make metal threaded connector 6b avoid the high-temperature region.In addition, the two ends of cover plate housing 1 also are provided with location leg 9, engage in use the installation and removal in the process easy to use with tundish.
Claims (2)
1. cover plate of pouring box, the cover plate housing (1) that comprises steel construction, described cover plate housing (1) is inner by anchoring piece (2) and integrated poured being integrated of refractory material (7), be provided with long nozzle tapping hole (4) in the middle of the described cover plate housing (1), described long nozzle tapping hole (4) both sides are provided with baking hole (3) and stopper hole (5), closely be plugged with stopper (6) in the described stopper hole (5), described stopper (6) comprises stopper body (6a), be embedded in the metal threaded connector (6b) in the stopper body (6a), and the connecting screw rod (6c) that matches with metal threaded connector (6b), it is characterized in that: the countersunk head through-hole structure that described stopper hole (5) is big up and small down, the upper one section top countersunk head that is arranged in described stopper hole (5) corresponding to metal threaded connector (6b) of described stopper body (6a), and be formed with the annular gap between this section and the top countersunk head.
2. cover plate of pouring box according to claim 1 is characterized in that: the two ends of described cover plate housing (1) are provided with location leg (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220531862 CN202824636U (en) | 2012-10-17 | 2012-10-17 | Tundish cover plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220531862 CN202824636U (en) | 2012-10-17 | 2012-10-17 | Tundish cover plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202824636U true CN202824636U (en) | 2013-03-27 |
Family
ID=47936429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220531862 Expired - Fee Related CN202824636U (en) | 2012-10-17 | 2012-10-17 | Tundish cover plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202824636U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057650A (en) * | 2015-07-31 | 2015-11-18 | 武汉威林科技股份有限公司 | Multi-flow integrated tundish cover |
| CN110861243A (en) * | 2019-12-09 | 2020-03-06 | 宁波市益普乐模塑有限公司 | Automatic combination insert block mechanism for die |
-
2012
- 2012-10-17 CN CN 201220531862 patent/CN202824636U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057650A (en) * | 2015-07-31 | 2015-11-18 | 武汉威林科技股份有限公司 | Multi-flow integrated tundish cover |
| CN110861243A (en) * | 2019-12-09 | 2020-03-06 | 宁波市益普乐模塑有限公司 | Automatic combination insert block mechanism for die |
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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: 20130327 Termination date: 20171017 |