CN104096828A - Multi-hole stopper rod for continuous casting - Google Patents
Multi-hole stopper rod for continuous casting Download PDFInfo
- Publication number
- CN104096828A CN104096828A CN201310129083.XA CN201310129083A CN104096828A CN 104096828 A CN104096828 A CN 104096828A CN 201310129083 A CN201310129083 A CN 201310129083A CN 104096828 A CN104096828 A CN 104096828A
- Authority
- CN
- China
- Prior art keywords
- stopper rod
- stopper
- continuous casting
- molten steel
- 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.)
- Pending
Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 19
- 239000007789 gas Substances 0.000 abstract description 35
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 20
- 229910000831 Steel Inorganic materials 0.000 abstract description 18
- 239000010959 steel Substances 0.000 abstract description 18
- 239000012535 impurity Substances 0.000 abstract description 11
- 229910052786 argon Inorganic materials 0.000 abstract description 10
- 239000007787 solid Substances 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Continuous Casting (AREA)
Abstract
The invention provides a multi-hole stopper rod for continuous casting. The multi-hole stopper rod for continuous casting comprises a stopper rod body and a stopper rod head which is connected to the bottom of the stopper rod body, an argon passage is arranged in the stopper rod body, the argon passage extends to the internal part of the stopper rod head, gas guide holes are horizontally formed in the stopper rod head, the gas guide holes are perpendicular to the axis of the argon passage, and the gas guide holes are formed above the contact surface between a gate and the stopper rod head and are communicated with the argon passage. Compared with the prior art, the multi-hole stopper rod for continuous casting has the advantages that the impurity products at the contact part between the gate and the stopper rod head can be very well cleaned, the flow rate of molten steel can be more accurately controlled, the bias flowing of the molten steel in the gate and the unstable state of vortexes are reduced, and the overall efficiency of continuous casting and the quality of the molten steel are improved.
Description
Technical field
The present invention relates to a kind of continuous casting porous stopper.
Background technology
Continuous casting has become the major way of modernization iron and steel enterprise STEELMAKING PRODUCTION.Stopper is to control the critical elements of continuous casting tundish to molten steel flow and the mold liquid level height of continuous cast mold, by being blown into argon gas, the solid impurity product of mouth of a river inwall deposition is washed away, and adsorb the solid impurity product in molten steel in the mouth of a river, improve the quality of molten steel.
As shown in Figure 1, the stopper head 2 that at present general stopper comprises a Stopper Body 1 and is arranged on Stopper Body 1 bottom forms, described Stopper Body 1 inside offers ar gas passage 3, on described stopper head 2, offers gas port, and described gas port and ar gas passage 3 are on same axis.When actual use, the argon gas being blown in ar gas passage 3 blows out from the bottom of stopper head 2 with the form of bubble by gas port, enters the inner chamber 5 at the mouth of a river 4 through carrying secretly of molten steel, the solid impurity product of mouth of a river internal chamber wall deposition can be washed away.But the argon gas bubbles that this stopper blows out can not wash away the solid impurity product of 4 bowls, mouth of a river portion's inwall and stopper head 2 outer walls, can not well the mouth of a river 4 and the impurity product of stopper head 2 contact portions be cleaned out.And the accumulation of these impurity products can cause stopper cannot accurately control molten steel flow speed, cause molten steel to have bias current in the mouth of a river 4, the labile state of eddy current affects the whole efficiency of continuous casting and the quality of molten steel.
Summary of the invention
The object of the invention is to solve above-mentioned technical problem, a kind of continuous casting porous stopper is provided.
Object of the present invention is achieved through the following technical solutions:
Continuous casting porous stopper, comprise Stopper Body and be connected in the stopper head of Stopper Body bottom, described Stopper Body inside offers ar gas passage, described ar gas passage extends to stopper head inside, on described stopper head, level offers gas port, described gas port is vertical with ar gas passage axis, described gas port be arranged on the mouth of a river and stopper head contact-making surface top and with ar gas passage UNICOM.
Preferably, described gas port at least offers two, and described gas port is distributed in stopper head.
Beneficial effect of the present invention is mainly reflected in: well the impurity product of the mouth of a river and stopper head contact portion is cleaned out, can control more accurately molten steel flow speed, reduce molten steel bias current in the mouth of a river, the labile state of eddy current, improves the whole efficiency of continuous casting and the quality of molten steel.
Brief description of the drawings
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Fig. 1: existing continuous casting stopper structural representation.
Fig. 2: continuous casting of the present invention stopper structural representation.
Fig. 3: the schematic cross-section of the gas port of level in Fig. 2.
Fig. 4: the structural representation of another horizontal gas port in the present invention.
Detailed description of the invention
The present invention has disclosed a kind of continuous casting porous stopper, as shown in Figure 2 and Figure 3, comprises Stopper Body 1 and is connected in the stopper head 2 of Stopper Body 1 bottom, and described Stopper Body 1 inside offers ar gas passage 3, and described ar gas passage 3 extends to stopper head 2 inside.On described stopper head 2, level offers gas port 6, and described gas port 6 is vertical with ar gas passage 3 axis, described gas port 6 be arranged on the mouth of a river 4 and stopper head 2 contact-making surfaces tops and with ar gas passage 3 UNICOMs.Shown in Fig. 3, Fig. 4, described gas port 6 can arrange as required, offers two or morely, is distributed in stopper head 2.By regulating interior hole number and big or small quantity and the size of controlling the argon gas bubbles that is blown into the mouth of a river of horizontal gas port 6.Varying number and big or small argon gas bubbles enter the mouth of a river 4 can effectively remove the solid impurity product of different-grain diameter in molten steel.
The argon gas bubbles that porous stopper of the present invention blows out first can wash away the solid impurity product of 4 bowls, mouth of a river portion's inwall and the 2 outer walls accumulations of stopper head through the contact area of stopper head 2 and the 4 bowls of portions in the mouth of a river; Then enter mouth of a river inner chamber 5, wash away the accumulated solids impurity product of mouth of a river inner chamber 5 inwalls.This stopper can be controlled molten steel flow speed more accurately, reduces molten steel bias current in the mouth of a river, and the labile state of eddy current improves the whole efficiency of continuous casting and the quality of molten steel.
The present invention still has multiple concrete embodiment, and all employings are equal to replacement or equivalent transformation and all technical schemes of forming, within all dropping on the scope of protection of present invention.
Claims (2)
1. continuous casting porous stopper, comprise Stopper Body and be connected in the stopper head of Stopper Body bottom, described Stopper Body inside offers ar gas passage, it is characterized in that: described ar gas passage extends to stopper head inside, on described stopper head, level offers gas port, described gas port is vertical with ar gas passage axis, described gas port be arranged on the mouth of a river and stopper head contact-making surface top and with ar gas passage UNICOM.
2. continuous casting according to claim 1 porous stopper, is characterized in that: described gas port at least offers two, and described gas port is distributed in stopper head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310129083.XA CN104096828A (en) | 2013-04-15 | 2013-04-15 | Multi-hole stopper rod for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310129083.XA CN104096828A (en) | 2013-04-15 | 2013-04-15 | Multi-hole stopper rod for continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104096828A true CN104096828A (en) | 2014-10-15 |
Family
ID=51665592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310129083.XA Pending CN104096828A (en) | 2013-04-15 | 2013-04-15 | Multi-hole stopper rod for continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104096828A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0411999A1 (en) * | 1989-08-03 | 1991-02-06 | Vesuvius France S.A. | Stopper rod for regulating the flow of a liquid, having a free space fed with gas |
| CN201049387Y (en) * | 2007-05-10 | 2008-04-23 | 山东中齐耐火材料有限公司 | Integral piston bar for accurately blowing argon |
| KR20100078815A (en) * | 2008-12-30 | 2010-07-08 | 주식회사 포스코 | Stopper and stopper assembly |
| CN203197234U (en) * | 2013-04-15 | 2013-09-18 | 维苏威高级陶瓷(苏州)有限公司 | Continuous-casting porous stopper rod |
-
2013
- 2013-04-15 CN CN201310129083.XA patent/CN104096828A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0411999A1 (en) * | 1989-08-03 | 1991-02-06 | Vesuvius France S.A. | Stopper rod for regulating the flow of a liquid, having a free space fed with gas |
| CN201049387Y (en) * | 2007-05-10 | 2008-04-23 | 山东中齐耐火材料有限公司 | Integral piston bar for accurately blowing argon |
| KR20100078815A (en) * | 2008-12-30 | 2010-07-08 | 주식회사 포스코 | Stopper and stopper assembly |
| CN203197234U (en) * | 2013-04-15 | 2013-09-18 | 维苏威高级陶瓷(苏州)有限公司 | Continuous-casting porous stopper rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141015 |