CN106270431A - Promote tundish metallurgy ability and reduce argon-blowing device and the using method of mouth of a river wadding stream - Google Patents
Promote tundish metallurgy ability and reduce argon-blowing device and the using method of mouth of a river wadding stream Download PDFInfo
- Publication number
- CN106270431A CN106270431A CN201610767344.4A CN201610767344A CN106270431A CN 106270431 A CN106270431 A CN 106270431A CN 201610767344 A CN201610767344 A CN 201610767344A CN 106270431 A CN106270431 A CN 106270431A
- Authority
- CN
- China
- Prior art keywords
- argon
- tundish
- blowing device
- steel
- hole
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/117—Refining the metal by treating with gases
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses argon-blowing device and the method promoting tundish metallurgy ability minimizing mouth of a river wadding stream, airtight annulus including hollow, on airtight annulus, uniform the is interval with the some ventholes flowed out for argon, described airtight annulus is made by burning oxygen pipe, described airtight annulus is provided with an air inlet, described air inlet and one section of vent line being similar to right angle connect, described vent line is connected with outside argon pipeline, the vent line of big bag tapping hole position is provided with protection sleeve pipe, described protection sleeve pipe and big bag tapping hole compact siro spinning technology on an axis.Step is as follows: tundish cleans out foreign material in tundish before reaching the standard grade；Argon-blowing device is put in advance tundish, is placed in wrapping the end, is respectively being put one by steel hole site and thermometer hole position；Argon-blowing device and tunger tube are connected to one after reaching the standard grade by tundish；Before unwrapping greatly beginning cast, argon-blowing device is mentioned to the lower surface of tundish cover, continue blowing argon gas；Cast.
Description
Technical field
The present invention relates to technical field of ferrous metallurgy, particularly relate to a kind of tundish metallurgy ability that promotes and reduce mouth of a river wadding stream
Argon-blowing device and using method.
Background technology
During the conticaster cast al-killed steel grade such as low-carbon low-silicon steel and Ultra-low carbon, if molten steel is by after secondary oxidation, easily lead
Causing mouth of a river inwall to be blocked by aluminium sesquioxide, the lighter needs to change the mouth of a river of a new baking, and serious will cause stopping accident.
The most not only causing a large amount of molten steel Hui Yu, resistance to material is wasted, and makes production cost be greatly increased, and has had a strong impact on whole factory
Rhythm of production.
Summary of the invention
The purpose of the present invention is exactly for solving the problems referred to above that prior art exists, it is provided that a kind of lifting tundish metallurgy energy
Power reduces the argon-blowing device of mouth of a river wadding stream；The present invention is based on existing working condition, it is possible to carry out tundish from being baked to whole watering
Omnidistance argon for protecting pouring, significantly reduces molten steel by the probability of secondary oxidation, improves steel quality, improve tundish
Metallurgical ability, it is to avoid mouth of a river wadding stream, it is ensured that can watering continuously of molten steel.
The present invention also provides for a kind of tundish metallurgy ability that promotes and reduces the using method of the argon-blowing device that mouth of a river wadding flows.
The present invention solves the technical scheme of technical problem:
A kind of tundish metallurgy ability that promotes reduces the argon-blowing device of mouth of a river wadding stream, including the airtight annulus of hollow, close
Closing on annulus uniform the and be interval with the some ventholes flowed out for argon, described airtight annulus is made by burning oxygen pipe, described close
Closing annulus and be provided with an air inlet, described air inlet and one section of vent line being similar to right angle connect, described vent line with
Outside argon pipeline connects, and is provided with protection sleeve pipe on the vent line of big bag tapping hole position, and described protection sleeve pipe is with big
Bag tapping hole compact siro spinning technology on an axis.
Described argon-blowing device is respectively arranged on by steel hole site and thermometer hole position, is respectively set by steel hole site and thermometer hole position
Put one；The diameter of the ring dress part of described argon-blowing device should be greater than the diameter by steel hole and thermometer hole.
On the one hand it is easy to argon diffusion in tundish, on the other hand, is unlikely to during pouring molten steel to be washed away by molten steel,
Play the effect of protection device.According to manufacturing technique requirent, clad is transformed, optimize the distance between each hole and fit
When reducing the diameter by steel hole.
A kind of tundish metallurgy ability that promotes reduces the using method of the argon-blowing device that mouth of a river wadding flows, and comprises the following steps:
(1) clean out foreign material in tundish before tundish is reached the standard grade, it is ensured that below tundish cover without the cold steel of dross, without resistance to
Material comes off, including including the cleaning of tundish by the cold steel of dross under internal for tundish foreign material, clad and the covering on clad
The foreign material such as agent are cleaned out, and reduce foreign impurity to the pollution of molten steel, oxidation；
(2) argon-blowing device is put in advance tundish, be placed in wrapping the end, respectively put by steel hole site and thermometer hole position
One, the diameter of the ring dress part of described argon-blowing device should be greater than the diameter by steel hole and thermometer hole, it is simple to argon is at tundish
In diffusion, and be unlikely to during pouring molten steel to be washed away by molten steel, play protection device and acted on；
(3) after tundish is reached the standard grade, argon-blowing device is linked together with tunger tube, and 20 minutes before centre is unwrapped and watered beat
Open argon pipe valve, carry out tundish Argon；
(4) guarantee to protect sleeve pipe argon gas-sealed good before continuous casting produces, it is ensured that protection sleeve pipe is tight with big bag tapping hole
Connect and on an axis；
(5) before unwrapping greatly beginning cast, argon-blowing device is mentioned to the lower surface of tundish cover, continue blowing argon gas, until
Molten steel is piled tundish and is added coverture, effectively closes argon pipeline after isolation air, pulls out hose；Unwrapping greatly beginning cast
Front this device mentioned to pouring basket lid and persistently lead to argon, forming argon shield at steel ullage, preferably every
Air absolutely；
(6) it is down to protection sleeve pipe under the clad of tundish start cast, opens and after watering stably, drop down onto rapidly extreme lower position, will
Tundish fills.
Beneficial effects of the present invention:
1. apparatus of the present invention are based on existing working condition, by this, from being baked to whole watering, tundish carried out omnidistance argon guarantor
Protect cast, after baking of tundish terminates, i.e. start Argon, air in emptying tundish, manufacture argon atmosphere, reduce molten steel two
Secondary oxidation, this design advantages of simple, manufacturing cost and use cost is low, effectively improves the metallurgical ability of tundish, working service
Convenient realization, it can be ensured that air emptying in tundish, and carry out argon shield in cast whole process, significantly reduce molten steel by two
The probability of secondary oxidation, improves steel quality, improve the metallurgical ability of tundish, it is to avoid mouth of a river wadding stream, it is ensured that molten steel
Can water continuously.
2. apparatus of the present invention require that tundish is placed in thermometer hole and by steel hole site before reaching the standard grade, and by pouring basket lid
Transformation, facilitate laying and using of this invention device.
3. the argon-blowing device of the present invention is respectively arranged on by steel hole site and thermometer hole position, by steel hole site and thermometer hole position
Putting and each arrange one, the diameter of the ring dress part of described argon-blowing device should be greater than the diameter by steel hole and thermometer hole.The most just
In argon diffusion in tundish, on the other hand, it is unlikely to during pouring molten steel to be washed away by molten steel, plays the work of protection device
With.According to manufacturing technique requirent, clad is transformed, optimize the distance between each hole and suitably reduce by steel hole
Diameter.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention is connected with cone-plate.
Detailed description of the invention
In order to be more fully understood that the present invention, explain in detail embodiments of the present invention below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of tundish metallurgy ability that promotes reduces the argon-blowing device of mouth of a river wadding stream, airtight including hollow
Annulus 1, is interval with the some ventholes 2 flowed out for argon on airtight annulus 1 uniformly, and described airtight annulus is by burning oxygen pipe
Making, described airtight annulus is provided with an air inlet 3, described air inlet and one section of vent line 4 being similar to right angle and connects, institute
State vent line to be connected with outside argon pipeline.The vent line of big bag tapping hole position is provided with protection sleeve pipe, described
Protect sleeve pipe and big bag tapping hole compact siro spinning technology and on an axis.Guarantee to protect sleeve pipe argon gas-sealed before continuous casting produces
Well.
Described argon-blowing device is respectively arranged on by steel hole site and thermometer hole position, is respectively set by steel hole site and thermometer hole position
Put one；The diameter of the ring dress part of described argon-blowing device should be greater than the diameter by steel hole and thermometer hole.On the one hand it is easy to argon
Diffusion in tundish, on the other hand, is unlikely to during pouring molten steel to be washed away by molten steel, plays the effect of protection device.Root
According to manufacturing technique requirent, clad is transformed, optimize the distance between each hole and suitably reduce the diameter by steel hole.
Illustrate as a example by steel grade SPHC (liquidus curve 1530 DEG C) below.The crystallizer cross dimensions 135 of this steel grade ×
1030mm, length of mould 1200mm, casting machine target pull rate 2.6m/min, tundish nominal capacity 30t, open and water temperature about 1570
℃.Steel grade SPHC belongs to low carbon low silicon aluminium killed steel, is particularly easy to occur secondary oxidation to cause wadding stream to be shut down in casting process
Accident.
A kind of tundish metallurgy ability that promotes reduces the using method of the argon-blowing device that mouth of a river wadding flows, and comprises the following steps:
(1) clean out foreign material in tundish before tundish is reached the standard grade, it is ensured that below tundish cover without the cold steel of dross, without resistance to
Material comes off, including including the cleaning of tundish by the cold steel of dross under internal for tundish foreign material, clad and the covering on clad
The foreign material such as agent are cleaned out, and reduce foreign impurity to the pollution of molten steel, oxidation；
(2) argon-blowing device is put in advance tundish, be placed in wrapping the end, respectively put by steel hole site and thermometer hole position
One, the diameter of the ring dress part of described argon-blowing device should be greater than the diameter by steel hole and thermometer hole；On the one hand it is easy to argon exist
Diffusion in tundish, on the other hand, is unlikely to during pouring molten steel to be washed away by molten steel, plays the effect of protection device.To this end,
According to existing working condition, clad is transformed, optimize the distance between each hole and suitably reduce by steel hole straight
Footpath.
(3) after tundish is reached the standard grade, argon-blowing device is linked together with tunger tube, and 20 minutes before centre is unwrapped and watered beat
Open argon pipe valve, carry out tundish Argon；
(4) guarantee to protect sleeve pipe argon gas-sealed good before continuous casting produces, it is ensured that protection sleeve pipe is tight with big bag tapping hole
Connect and on an axis；
(5) before unwrapping greatly beginning cast, argon-blowing device is mentioned to the lower surface of tundish cover, continue blowing argon gas；Until
Molten steel is piled tundish and is added coverture, effectively after isolation air, closes argon pipeline, pulls out hose；Water unwrapping greatly the beginning
Before Zhu, this device is mentioned to pouring basket lid, and persistently lead to argon, to form argon shield at steel ullage, more preferably
Isolation air；
(6) it is down to protection sleeve pipe under the clad of tundish start cast, opens and after watering stably, drop down onto rapidly extreme lower position, will
Tundish fills.
This design advantages of simple, not only convenient realization, and air emptying in may insure that tundish, and in cast whole process
Carry out argon shield.
Apparatus of the present invention, based on existing working condition, effectively improve the metallurgical ability of tundish, water molten steel from opening
The front overall process watered to end has carried out argon shield, is effectively reduced the wadding flow phenomenon at the mouth of a river.
Although the detailed description of the invention of invention is described by the above-mentioned accompanying drawing that combines, but not to scope
Restriction, on the basis of technical scheme, those skilled in the art need not pay creative work and can make
Various amendments or deformation still within protection scope of the present invention.
Claims (3)
1. promote tundish metallurgy ability and reduce an argon-blowing device for mouth of a river wadding stream, it is characterized in that, including the airtight circle of hollow
Ring, on airtight annulus, uniform the is interval with the some ventholes flowed out for argon, and described airtight annulus is made by burning oxygen pipe,
Described airtight annulus is provided with an air inlet, described air inlet and one section of vent line being similar to right angle and connects, described ventilation
Pipeline is connected with outside argon pipeline, is provided with protection sleeve pipe, described protection set on the vent line of big bag tapping hole position
Guan Yu great bag tapping hole compact siro spinning technology on an axis.
2. promote as claimed in claim 1 tundish metallurgy ability and reduce the argon-blowing device of mouth of a river wadding stream, it is characterized in that, described in blow
Argon device is respectively arranged on by steel hole site and thermometer hole position, is respectively arranged one by steel hole site and thermometer hole position；Described blow
The diameter of the ring dress part of argon device should be greater than the diameter by steel hole and thermometer hole.
3. promote tundish metallurgy ability and reduce the using method of argon-blowing device for mouth of a river wadding stream, it is characterized in that, including with
Lower step:
(1) clean out foreign material in tundish before tundish is reached the standard grade, it is ensured that below tundish cover without the cold steel of dross, without resistance to material take off
Fall, including the cleaning of tundish being included by the cold steel of dross under internal for tundish foreign material, clad and the coverture etc. on clad
Foreign material are cleaned out, and reduce foreign impurity to the pollution of molten steel, oxidation；
(2) argon-blowing device is put in advance tundish, be placed in wrapping the end, respectively put one by steel hole site and thermometer hole position
Individual, the diameter of the ring dress part of described argon-blowing device should be greater than the diameter by steel hole and thermometer hole, it is simple to argon is in tundish
Diffusion, and be unlikely to during pouring molten steel to be washed away by molten steel, play protection device and acted on；
(3) after tundish is reached the standard grade, argon-blowing device is linked together with tunger tube, and 20 minutes before centre is unwrapped and watered open argon
Air pipe valve, carries out tundish Argon；
(4) guarantee to protect sleeve pipe argon gas-sealed good before continuous casting produces, it is ensured that protection sleeve pipe and big bag tapping hole compact siro spinning technology
And on an axis；
(5) before unwrapping greatly beginning cast, argon-blowing device is mentioned to the lower surface of tundish cover, continue blowing argon gas, until molten steel
Pile tundish and add coverture, effectively close argon pipeline after isolation air, pull out hose；Will before unwrapping greatly beginning cast
This device is mentioned to pouring basket lid and persistently leads to argon, forms argon shield at steel ullage, preferably completely cuts off sky
Gas；
(6) it is down to protection sleeve pipe under the clad of tundish start cast, opens and after watering stably, drop down onto rapidly extreme lower position, by centre
Bag fills.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610767344.4A CN106270431A (en) | 2016-08-30 | 2016-08-30 | Promote tundish metallurgy ability and reduce argon-blowing device and the using method of mouth of a river wadding stream |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610767344.4A CN106270431A (en) | 2016-08-30 | 2016-08-30 | Promote tundish metallurgy ability and reduce argon-blowing device and the using method of mouth of a river wadding stream |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106270431A true CN106270431A (en) | 2017-01-04 |
Family
ID=57676036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610767344.4A Pending CN106270431A (en) | 2016-08-30 | 2016-08-30 | Promote tundish metallurgy ability and reduce argon-blowing device and the using method of mouth of a river wadding stream |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106270431A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111348904A (en) * | 2020-02-26 | 2020-06-30 | 郑州大学 | Tundish gas curtain retaining wall argon-blowing slag line protective sleeve and preparation method thereof |
| CN113600773A (en) * | 2021-07-30 | 2021-11-05 | 南京钢铁股份有限公司 | Pouring process of low-oxygen-concentration continuous casting tundish |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005305489A (en) * | 2004-04-20 | 2005-11-04 | Nippon Steel Corp | Method for continuously casting steel |
| CN202591607U (en) * | 2012-03-27 | 2012-12-12 | 宝山钢铁股份有限公司 | Gas protection device for low-tonnage tundish pouring |
| CN103978171A (en) * | 2014-05-30 | 2014-08-13 | 济钢集团有限公司 | Method for reducing secondary oxidation of first furnace molten steel of continuous casting tundish |
| CN204075107U (en) * | 2014-10-08 | 2015-01-07 | 舞阳钢铁有限责任公司 | A kind of ingot steel casting argon protective device |
| CN204234685U (en) * | 2014-11-10 | 2015-04-01 | 中冶陕压重工设备有限公司 | A kind of protective device for pouring molten steel |
| CN205393530U (en) * | 2016-03-09 | 2016-07-27 | 日照宝华新材料有限公司 | Prevent opening watering to wad a quilt with cotton and flow device |
-
2016
- 2016-08-30 CN CN201610767344.4A patent/CN106270431A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005305489A (en) * | 2004-04-20 | 2005-11-04 | Nippon Steel Corp | Method for continuously casting steel |
| CN202591607U (en) * | 2012-03-27 | 2012-12-12 | 宝山钢铁股份有限公司 | Gas protection device for low-tonnage tundish pouring |
| CN103978171A (en) * | 2014-05-30 | 2014-08-13 | 济钢集团有限公司 | Method for reducing secondary oxidation of first furnace molten steel of continuous casting tundish |
| CN204075107U (en) * | 2014-10-08 | 2015-01-07 | 舞阳钢铁有限责任公司 | A kind of ingot steel casting argon protective device |
| CN204234685U (en) * | 2014-11-10 | 2015-04-01 | 中冶陕压重工设备有限公司 | A kind of protective device for pouring molten steel |
| CN205393530U (en) * | 2016-03-09 | 2016-07-27 | 日照宝华新材料有限公司 | Prevent opening watering to wad a quilt with cotton and flow device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111348904A (en) * | 2020-02-26 | 2020-06-30 | 郑州大学 | Tundish gas curtain retaining wall argon-blowing slag line protective sleeve and preparation method thereof |
| CN113600773A (en) * | 2021-07-30 | 2021-11-05 | 南京钢铁股份有限公司 | Pouring process of low-oxygen-concentration continuous casting tundish |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105170947B (en) | A kind of preparation method of more than two layers metal composite pipe blank | |
| CN102909333B (en) | Method and device for deceasing transverse corner cracks of casting blanks | |
| CN111136256A (en) | Molten steel continuous casting equipment and continuous casting method | |
| CN106270431A (en) | Promote tundish metallurgy ability and reduce argon-blowing device and the using method of mouth of a river wadding stream | |
| CN205254058U (en) | Amorphous constant voltage system belting | |
| CN103978171A (en) | Method for reducing secondary oxidation of first furnace molten steel of continuous casting tundish | |
| CN103008639B (en) | A kind of method of austenitic stainless steel continuous casting protection pouring | |
| CN104226973A (en) | Continuous casting protection casting device of high-quality steel | |
| CN207828347U (en) | A kind of threads feeding apparatus | |
| CN107755679B (en) | Argon blowing sealing and molten steel cleaning long nozzle device and argon blowing method | |
| CN205668064U (en) | A kind of reduce molten steel device of nitrogen pick-up during continuous casting | |
| CN205673577U (en) | A kind of device preventing Metal in Tundish secondary oxidation | |
| JPS61139616A (en) | Method for removing accretion on throat of converter | |
| CN201768905U (en) | Continuous casting ladle steel stream full-sealed argon protection cover | |
| CN208527630U (en) | A kind of hot-metal bottle folding tank position dust-extraction unit | |
| CN204234685U (en) | A kind of protective device for pouring molten steel | |
| CN104831017B (en) | A kind of control tapping process molten steel nitrogen pick-up device and control method | |
| CN205732958U (en) | A kind of protection device for long nozzle casting | |
| CN202591602U (en) | Reverse-spray resistant ladle nozzle device | |
| CN207521700U (en) | A kind of long nozzle device of argon blowing seal and purifying of steel | |
| CN209110168U (en) | The device of metal liquid oxidation is prevented when a kind of casting | |
| CN108067598A (en) | The method for reducing low-carbon low-silicon steel continuous casting head stove nitrogen in steel content | |
| CN201760585U (en) | Horizontal continuous casting tundish with negative pressure device | |
| CN203923261U (en) | Alloy adding device of non-vacuum induction furnace | |
| CN211570707U (en) | Novel continuous casting tundish argon blowing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
|
| WD01 | Invention patent application deemed withdrawn after publication |