CN206305436U - Improve the continuous casting immersion outlet of service life - Google Patents
Improve the continuous casting immersion outlet of service life Download PDFInfo
- Publication number
- CN206305436U CN206305436U CN201621372727.3U CN201621372727U CN206305436U CN 206305436 U CN206305436 U CN 206305436U CN 201621372727 U CN201621372727 U CN 201621372727U CN 206305436 U CN206305436 U CN 206305436U
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- continuous casting
- mouth
- service life
- river
- immersion outlet
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Abstract
The utility model belongs to the improvement of steel mill slab continuous casting submerged nozzle structure, particularly a kind of continuous casting immersion outlet for improving service life, there is mouth of a river bearing including top, bottom has the continuous casting immersion outlet of water-gap outlets, the cylindric reinforcing core cylinder being made up of refractory material high is set in the mouth of a river barrel wall of continuous casting immersion outlet slag lining, the internal diameter of reinforcing core cylinder is 70mm, is highly 250mm, and thickness is 10mm.The utility model is rational in infrastructure, can improve gate structure resistant to corrosion, will not form the refractory material for coming off and be involved in molten steel phenomenon, improves slab submersed nozzle service life, improves continuous casting billet quality, can reduce worker's labour intensity.
Description
Technical field
The utility model belongs to the improvement of steel mill slab continuous casting submerged nozzle structure, and particularly a kind of raising uses the longevity
The continuous casting immersion outlet of life.
Background technology
Slab continuous casting submerged nozzle Main Function is:(1) secondary oxidation of steel, nitridation and the splashing of molten steel are prevented;(2)
Regulation MOLTEN STEEL FLOW state and injection rate;(3) covering slag and other non-metallic inclusions are prevented to be involved in molten steel, to promoting steel
The floating of field trash plays an important role in water;(4) there is decisive influence to sheet billet continuous casting lumber recovery and slab quality.
Submersed nozzle in use, in insertion crystallizer, immerse in molten steel, due to mold liquid level by mouth of a river bottom
The need for control, height of the submersed nozzle in molten steel keeps constant, therefore the slag line that mouth of a river bottom and liquid steel level are contacted
The slag of mold liquid level is caused to corrode mouth of a river slag lining, slag line under molten steel and the prolonged souring of slag in position
The thinning speed of part thickness, or even cause mouth of a river slag lining to be broken in casting process, therefore the mouth of a river life-span is shorter.
Because the design feature of this kind of submersed nozzle, slag lining erosive velocity are fast, the mouth of a river is easily broken off, not only to even
Slab quality has a negative impact, and mouth of a river short life, and replacing amount is big, and resistance to material is relatively costly.
The subject matter that traditional slab invasive nozzle is present is as follows：
1st, resistant to corrosion degree in the mouth of a river is poor, and the refractory material for coming off is involved in molten steel, has a negative impact to continuous casting billet quality.
2nd, submersed nozzle is cylindrical shape, and slag lining erosive velocity is fast, and the mouth of a river is easily broken off, and the mouth of a river life-span is shorter, because
This needs to change in advance.
3rd, submersed nozzle service life is relatively low, changes frequent, and the cost of use of resistance to material is higher.
4th, worker frequently changes submersed nozzle, and labour intensity is higher.
Utility model content
The purpose of this utility model is to provide a kind of continuous casting immersion outlet for improving service life, and its is rational in infrastructure,
Gate structure resistant to corrosion can be improved, the refractory material for coming off will not be formed and be involved in molten steel phenomenon, improve slab immersion water
Mouth service life, improves continuous casting billet quality, can reduce worker's labour intensity.
What the purpose of this utility model was realized in：A kind of continuous casting immersion outlet for improving service life, including it is upper
Portion has mouth of a river bearing, and bottom has the continuous casting immersion outlet of water-gap outlets, in the water of continuous casting immersion outlet slag lining
The cylindric reinforcing core cylinder being made up of refractory material high is set in mouth barrel wall, and the internal diameter of reinforcing core tin is 70mm, is highly
250mm, thickness is 10mm.
Main contents are as follows：
The improvement carried out on traditional slab invasive nozzle architecture basics, core is installed additional inside slag lining refractory material
Cylinder, improves the corrosion resistance of slag lining, improves the service life of submersed nozzle.
Main improvement effect：
1st, invasive nozzle slag lining installs the core cylinder of zirconium oxide refractory material composition additional after improving, than raw water mouth structure
Resistant to corrosion, the mouth of a river life-span improves.
2nd, resistant to corrosion degree in the mouth of a river preferably, will not form the refractory material for coming off and be involved in molten steel phenomenon, be conducive to continuous casting billet
The raising of quality.
3rd, the mouth of a river life-span is improve, submersed nozzle replacing amount is reduced, and reduces the cost of use of resistance to material, reduces slab company
The production cost of casting, cost is compared and reduces about 30% or so compared with before-improvement.
4th, submersed nozzle is changed according to plan, reduces unplanned replacing quantity, substantially reduces worker's labour intensity, Zhi Gonglao
Dynamic improvement of terms.
The utility model is rational in infrastructure, improves gate structure resistant to corrosion, will not form the refractory material for coming off and be involved in
Molten steel phenomenon, improves slab submersed nozzle service life, improves continuous casting billet quality, reduces worker's labour intensity.
Brief description of the drawings
The utility model is further described below in conjunction with accompanying drawing, Fig. 1 illustrates for the utility model sectional structure
Figure.
Specific embodiment
A kind of continuous casting immersion outlet for improving service life, as shown in figure 1, there is mouth of a river bearing 1, bottom including top
Continuous casting immersion outlet 2 with water-gap outlets 3, is set in the mouth of a river barrel wall of the slag lining of continuous casting immersion outlet 2
The cylindric reinforcing core cylinder 4 being made up of refractory material high, the internal diameter of reinforcing core cylinder 4 is 70mm, is highly 250mm, and thickness is
10mm.Reinforcing core cylinder 4 is made up of zirconium oxide refractory material.
Claims (2)
1. a kind of continuous casting immersion outlet for improving service life, including top has mouth of a river bearing (1), and there is the mouth of a river to go out for bottom
The continuous casting immersion outlet (2) of mouth (3), it is characterized in that：Set in the mouth of a river barrel wall of continuous casting immersion outlet (2) slag lining
Cylindric reinforcing core cylinder (4) being made up of refractory material high is put, the internal diameter of reinforcing core cylinder (4) is 70mm, is highly 250mm,
Thickness is 10mm.
2. it is according to claim 1 improve service life continuous casting immersion outlet, it is characterized in that：Reinforcing core cylinder (4) by
Zirconium oxide refractory material is constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621372727.3U CN206305436U (en) | 2016-12-14 | 2016-12-14 | Improve the continuous casting immersion outlet of service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621372727.3U CN206305436U (en) | 2016-12-14 | 2016-12-14 | Improve the continuous casting immersion outlet of service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206305436U true CN206305436U (en) | 2017-07-07 |
Family
ID=59251605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621372727.3U Expired - Fee Related CN206305436U (en) | 2016-12-14 | 2016-12-14 | Improve the continuous casting immersion outlet of service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206305436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108920821A (en) * | 2018-06-30 | 2018-11-30 | 马鞍山钢铁股份有限公司 | A kind of steel-making continuous casting intrusive mood flowing water mouth and its method for numerical simulation |
-
2016
- 2016-12-14 CN CN201621372727.3U patent/CN206305436U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108920821A (en) * | 2018-06-30 | 2018-11-30 | 马鞍山钢铁股份有限公司 | A kind of steel-making continuous casting intrusive mood flowing water mouth and its method for numerical simulation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170707 Termination date: 20171214 |