CN207521700U - A kind of long nozzle device of argon blowing seal and purifying of steel - Google Patents
A kind of long nozzle device of argon blowing seal and purifying of steel Download PDFInfo
- Publication number
- CN207521700U CN207521700U CN201721687000.9U CN201721687000U CN207521700U CN 207521700 U CN207521700 U CN 207521700U CN 201721687000 U CN201721687000 U CN 201721687000U CN 207521700 U CN207521700 U CN 207521700U
- Authority
- CN
- China
- Prior art keywords
- long nozzle
- argon
- steel
- purifying
- molten steel
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model discloses a kind of argon blowing seal and the long nozzle devices of purifying of steel, belong to technical field of ferrous metallurgy.The utility model long nozzle is characterized in that changing intermediate position shape, Zhu Liu areas are formed among long nozzle, simultaneously in one circle argon blowing hole of Zhu Liu areas setting, the long nozzle of the utility model can be achieved at the same time molten steel sealing and prevent from inhaling nitrogen and Argon stirring degassing function, argon gas is blown by Zhu Liu areas argon blowing hole and Zhu Liu areas are full of argon gas, the gas that can keep gap between long nozzle and ladle water outlet is positive pressure, it realizes sealing function and effectively prevent molten steel air-breathing, molten steel diffusing caused by being also mutated using long nozzle caliber comes into full contact with argon gas, to reach gas purpose in removing steel, it ensure that the degree of purity of molten steel.
Description
Technical field
The utility model is related to technical field of ferrous metallurgy, more specifically to a kind of argon blowing seal and purifying of steel
Long nozzle device.
Background technology
With social economy and the development of science and technology, the performance requirement of steel is increasingly improved.How to effectively prevent and maximum
Degree removal of inclusions is the Main way studied at present to improve Cleanliness of Molten Steel.It can be in terms of two to the cleanliness factor of strand
It is controlled, is on the one hand the field trash removed by various modes as far as possible in molten steel, be on the other hand to reduce to smelt and pour
The entrance and generation of field trash, particularly molten steel air-breathing problem during note, molten steel air-breathing can bring two harm, a harm
It is secondary oxidation of steel, i.e. the elements such as dissolved aluminum in molten steel are oxidized to oxide, another harm is to lead to nitrogen in molten steel
The increase of constituent content.With the raising of refining techniques level, removal inclusion content in melting steel has reached higher level, mesh
Before, prevent the molten steel air-breathing in casting process from becoming more and more important.
Nitrogen is solution strengthening element in steel, phenomena such as leading to timeliness and blue shortness, moreover it is possible to the generation such as titanium, aluminium compared with
For sharp field trash；Nitrogen in steel can reduce toughness, plasticity, welding performance of steel etc..Nitrogen content in molten steel is refining
Content is minimum during steel terminal, the nitrogen in molten steel increase mainly after refining and casting process in caused by air-breathing.Cause
This, the air-breathing in casting process, needs to take molding casting to prevent molten steel from inhaling nitrogen in order to prevent.
Deoxidation mostly carries out deoxidation using aluminium in molten steel, and in order to obtain relatively low dissolved oxygen, general control acid-soluble aluminum content exists
Between 0.025-0.045%, and some high-aluminum steels such as 38CrMoAl acid-soluble aluminum contents are more up to 0.7-1.1%.If pouring
Molten steel air-breathing during note, the dissolved aluminum in molten steel will generate aluminate with the oxygen in air, so as in cast
Cause nozzle blocking, store a series of problems, such as stream.
The air-breathing in Ladle Cycling and casting process improves Molten Steel Cleanliness in order to prevent, at present in continuous casting production process
In, big packet molding casting is generally realized using big water-coating port and big packet long nozzle argon blowing seal.But seam crossing therebetween
Air easily is sucked because of negative pressure caused by the steel stream of cast, so as to cause the increase of nitrogen content in molten steel and oxygen content.Make
The shortcomings of easily being blocked when being primarily present anaphase effect difference and excessive steel with ventilative ring type argon blowing seal mode, and seal washer is then deposited
Fragile and sealing effect is unstable the shortcomings of.
Have some patents at present and carry out Argon using long nozzle to utilize big packet potential energy, such as patent of invention
CN102864283A, patent name are：A kind of Argon-blowing long nozzle for clean steel；This application is in long nozzle madial wall and lateral wall
Between set a ring-shaped air chamber connected with Argon conduit；Ring-shaped air chamber is toward the direction that radially extends of mouth of a river madial wall, the mouth of a river
The air hole with ring-shaped air chamber inside multiple connection mouths of a river is further opened on madial wall.This application argon gas is taken over by Argon to be blown
Air inlet chamber, argon gas are blown by each air hole in molten steel in gas chamber, and at the mouth of a river, inner wall can generate more minute bubbles,
Minute bubbles can be smashed into more tiny bubble by the shearing force that the velocity gradient of molten steel flow generates simultaneously.Minute bubbles capture field trash
It floats rapidly after into tundish, is adsorbed by tundish covering flux, improve the cleannes of strand.Patent of invention
CN104139179A, patent name are：A kind of multi-functional argon blowing long nozzle, this application it is also proposed that improve argon blowing long nozzle so as to
It preferably carries out argon gas-sealed and generates minute bubbles using big packet potential energy.However, above-mentioned application case is to long nozzle Argon portion
Divide the technological improvement carried out, be improved and innovate to long nozzle.Patent of invention CN102864283A is on long nozzle
End sets step-like funnel, also primarily to long nozzle can be docked preferably with ladle, preferably wraps up ladle, reaches more
Good sealing effect, can not play the role of good dissipation molten steel potential energy.
China Patent No. ZL201621488358.4, authorized announcement date are on July 14th, 2017, and invention and created name is：
A kind of immersion, which is opened to pour, uses ladle long nozzle；The top of this application long nozzle ontology is equipped with the rim of a bowl, described the rim of a bowl and inner cavity phase
Unicom, long nozzle ontology lower end intracavity diameter are more than the intracavity diameter of long nozzle ontology upper end, and inner cavity is in bell mouth shape.This application
Case expands ladle long nozzle ontology lower end cavity volume, even if opening has residual air when pouring, expanded by heating pressure very little will not
Sealing forms impact between long nozzle and ladle outlet, avoids the sealing leak between long nozzle and ladle outlet, improves to open and pour
Quality.But the bell-mouth structure of air that this application relies primarily on the setting of long nozzle ontology lower end avoids the formation of impact, and molten steel is passing through
The last moment of long nozzle could further scatter, and dissipation molten steel potential energy is more passive, and effect is undesirable；And in order not to generate compared with
Big impact depth, lower end bell-mouth structure of air sectional area can design larger, long nozzle existing defects in structure design.
Utility model content
1. utility model technical problems to be solved
The problem of the utility model is proposed for background technology provides the long water of a kind of argon blowing seal and purifying of steel
Mouth device, the utility model in the middle part of long nozzle mainly by setting Zhu Liu area's dissipation molten steel potential energy, and be blown into the area
Argon gas, argon gas rise to the argon gas atmosphere that seal area forms micro-positive pressure, effectively prevent molten steel air-breathing；It is dissipated using Zhu Liu areas molten steel
Kinetic energy argon gas is broken into minute bubbles, and be carried along into tundish by molten steel with further removal of inclusions；Long nozzle exports
In bell mouth shape, further dissipation molten steel potential energy is to mitigate the impact to Metal in Tundish.
2. technical solution
In order to achieve the above objectives, technical solution provided by the utility model is：
A kind of argon blowing seal of the utility model and the long nozzle device of purifying of steel, including long nozzle ontology, the length
Mouth of a river body interior is equipped with hollow cavity, and intracavity diameter is more than both ends intracavity diameter in the middle part of long nozzle ontology, forms Zhu Liu areas.
It is further improved as the utility model, described long nozzle ontology one end sets the rim of a bowl, the rim of a bowl docking
Ladle water outlet, and seal washer is set between the rim of a bowl and ladle water outlet.
It is further improved as the utility model, the Zhu Liu areas are blown by being provided on one end side wall of near bowl mouth
Argon hole, Argon conduit connection argon blowing hole, argon gas are blown into long nozzle Zhu Liu areas by Argon conduit.
It is further improved as the utility model, the Argon conduit is provided at circumferentially spaced 4- along Zhu Liu areas side wall
6.
It is further improved as the utility model, on the Zhu Liu areas side wall, distance Zhu Liu areas and upper end Chang Shui
The Argon conduit that an at least row is uniformly distributed circumferentially is equipped at mouth ontology boundary position 30cm, 4-6 Argon of often row's setting is led
Pipe.
It is further improved as the utility model, the Zhu Liu areas intracavity diameter is both ends long nozzle chamber body
1.3-1.8 times of diameter.
It is further improved as the utility model, the Zhu Liu areas are arranged on apart from the rim of a bowl lower part 140-170cm
Place.
It is further improved as the utility model, the long nozzle ontology exports 10cm sections of setting horn mouths, should
Horn mouth intracavity diameter is 1.4-1.6 times of long nozzle chamber body diameter.
A kind of method that Argon is carried out using the long nozzle device of the utility model, is first beaten ladle water outlet
It opens, after confirming that ladle water outlet can open, ladle water outlet is closed, then by the rim of a bowl of long nozzle ontology and ladle water outlet pair
It connects, by Argon conduit to Zhu Liu areas Argon, then second of opening ladle water outlet, which is opened, pours molten steel.
It is further improved as the utility model, after second is opened ladle water outlet, the argon flow amount being blown into is
30-60L/h, Argon pressure are 0.1-2Mpa.
3. advantageous effect
Using technical solution provided by the utility model, compared with existing known technology, there is following remarkable result：
(1) the long nozzle device of a kind of argon blowing seal of the utility model and purifying of steel, by improving traditional long nozzle
Structure sets intracavity diameter to be more than the Zhu Liu areas of long nozzle both ends intracavity diameter so that in ladle in the middle part of long nozzle ontology
Molten steel enters the tundish of lower section in a step-wise manner, and molten steel potential energy is fully dissipated in long nozzle Zhu Liu areas, effective to mitigate
Impact of the molten steel to tundish；
(2) the long nozzle device of a kind of argon blowing seal of the utility model and purifying of steel is flowed using storage in the middle part of long nozzle
Area is blown into argon gas and storing for argon gas is formed in Zhu Liu areas, and Zhu Liu areas formation argon gas atmosphere, which seals long nozzle, prevents molten steel from inhaling
Nitrogen, at the same time, since the Zhu Liu areas at middle part cause the impact of molten steel after part argon gas is impacted into small Argon Bubble by molten steel
Winding enters in tundish, and the ability of tundish removal of inclusions is improved simultaneously in the degree of purity that ensure that molten steel；
(3) the long nozzle device of a kind of argon blowing seal of the utility model and purifying of steel, does in the long nozzle port of export
Certain improved shape designs long nozzle outlet in bell mouth shape, and horn mouth intracavity diameter is only long nozzle chamber body
1.4-1.6 times of diameter is designed relative to traditional typhon mouth, on the one hand the utility model has Zhu Liu areas in front end before
Put, can the long nozzle port of export further dissipation molten steel potential energy to mitigate the impact to Metal in Tundish；Another aspect loudspeaker
Open area is smaller so that long nozzle more optimized structure；
(4) the long nozzle device of a kind of argon blowing seal of the utility model and purifying of steel, not only directly by Argon conduit
Zhu Liu areas are arranged on, and multiple Argon conduits are circumferentially uniformly distributed along Zhu Liu areas side wall, the design of Argon conduit symmetric radiation shape is more
It is a, the uniform atmosphere of argon gas is easily formed, convenient for sealing；Qie Zhuliu areas inner cavity is thicker, has also given argon gas more spaces, molten steel into
Ru Zhuliu areas, argon gas can in time uniformly protect molten steel, and molten steel potential energy is also more convenient for when Zhu Liu areas dissipate will be attached
Near argon gas sucking breaks up to form minute bubbles and enter tundish with molten steel；
(5) a kind of method that Argon is carried out using the long nozzle device of the utility model coordinates the knot of long nozzle
Structure improves, design molten steel just it is normally opened pour during, the argon flow amount that is blown into is 30-60L/h, and Argon pressure is 0.1-2Mpa, should
Under the conditions of argon gas rise to seal area formed micro-positive pressure argon gas atmosphere, molten steel air-breathing, Qie Zhuliu areas molten steel can be effectively prevent
The kinetic energy of dissipation can fully smash argon gas, form minute bubbles, into tundish with further removal of inclusions, ensure molten steel
Cleanliness factor.
Description of the drawings
Fig. 1 is the argon blowing seal of the utility model and the long nozzle structure diagram of purifying of steel.
Label declaration in schematic diagram：
1st, ladle water outlet；2nd, seal washer；3rd, long nozzle ontology；4th, Argon conduit；5th, Zhu Liu areas；6th, horn mouth.
Specific embodiment
To further appreciate that the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
With reference to Fig. 1, a kind of argon blowing seal of the present embodiment and the long nozzle device of purifying of steel are arranged on ladle and centre
Wrap junction.Long nozzle ontology 3 is protruded to be intermediate, and lower end outlet is in horn-like diameter-changing body, specially 3 upper end of long nozzle ontology
For funnel-form the rim of a bowl, the rim of a bowl docking ladle water outlet 1, and setting seal washer 2 between the rim of a bowl and ladle water outlet 1.Long water
Mouth ontology 3 is internally provided with hollow cavity, and the present embodiment is setting Zhu Liu areas 5,5 inner cavity of Zhu Liu areas at the 150cm of the rim of a bowl lower part
Diameter is more than the intracavity diameter of both ends long nozzle ontology 3.The main function in Zhu Liu areas 5 is so that the molten steel in ladle is with ladder side
Formula enters the tundish of lower section, and molten steel potential energy is fully dissipated in Zhu Liu areas 5, to mitigate impact of the molten steel to tundish.Together
When, storing for argon gas is formed in Zhu Liu areas, forming argon gas atmosphere sealing long nozzle prevents molten steel from inhaling nitrogen.Inventor passes through long-term
Theoretical research and the practice summary in steel mill, it is believed that 5 intracavity diameter of setting Zhu Liu areas is 3 intracavity diameter of both ends long nozzle ontology
1.3-1.8 times it is proper, specific to 5 intracavity diameter of the present embodiment Zhu Liu areas for 3 intracavity diameter of both ends long nozzle ontology
1.5 again.
The present embodiment is set on 5 side wall of Zhu Liu areas at distance Zhu Liu areas 5 and 3 boundary position 30cm of upper end long nozzle ontology
Argon blowing hole is put, Argon conduit 4 is directly connected to argon blowing hole, and Argon conduit 4 is provided at circumferentially spaced 4 along 5 side wall of Zhu Liu areas, argon gas
Long nozzle Zhu Liu areas 5 are blown by Argon conduit 4.4 symmetric radiation shape of Argon conduit designs 4, is easily formed the uniform gas of argon gas
Atmosphere, convenient for sealing.
What deserves to be explained is the raising for Molten Steel Cleanliness, to form oxide in addition to preventing extraneous gas from entering and also need
Remove the deoxidation products after tapping.According to existing theory, it is simple and effective to capture field trash and removal of floating by bubble
Means.Meanwhile it is related research shows that：The bubble for effectively removing field trash should be tiny bubble, and optimum range is in 2-15mm.The back of the body
The patent of invention CN102864283A mentioned in scape technology, patent name are：A kind of Argon-blowing long nozzle for clean steel；I.e. using big
Air pocket is smashed into minute bubbles by the shearing force that the potential energy of Baogang's water generates, and forms the better removal of inclusions of tiny bubble.
Though Argon conduit 4 is directly arranged on Zhu Liu areas 5 by the present embodiment also with above-mentioned theory, the present embodiment, by
Inner cavity is thicker at Zhu Liu areas 5, has given argon gas more spaces.One is easily formed argon gas atmosphere, convenient for sealing；Two carry out molten steel
Into Zhu Liu areas 5, argon gas can in time uniformly protect molten steel, then have molten steel potential energy when Zhu Liu areas 5 dissipate also more
Convenient for neighbouring argon gas is sucked, fully break up to form tiny bubble and enter tundish with molten steel, improve tundish removal
The ability of field trash.And in terms of argon blowing seal, traditional Argon is all that argon blowing hole is arranged on long nozzle upper end, against package steel
At packet water outlet 1 carry out Argon, the space for so leaving Argon for is fewer, cause interface sealing effect be not it is fine, not
It can effectively prevent molten steel and inhale nitrogen.And the argon gas that the present embodiment Zhu Liu areas 5 take in is more, has smaller pressure can be by argon gas top to steel
At packet water outlet 1, even preferably sealing effect can be reached as traditional Argon mode.
The long nozzle ontology 3 exports 10cm sections of setting horn mouths 6, which is long water
1.4 times of mouth 3 intracavity diameter of ontology, bottom intracavity diameter are 1.6 times of 3 intracavity diameter of long nozzle ontology.The present embodiment leads to
Cross the traditional long nozzle structure of improvement, Zhu Liu areas 5 be set in the middle part of long nozzle ontology so that molten steel in ladle in a step-wise manner into
Enter the tundish of lower section, molten steel potential energy is fully dissipated in long nozzle Zhu Liu areas, effectively alleviates molten steel to tundish
Impact, intermediate buffer distance can also be adjusted according to actual conditions, also more active more flexible to the dissipation of potential energy.Relatively
The mode of typhon mouth is separately provided in long nozzle lower end in tradition, it, can be under the premise of on the one hand having Zhu Liu areas 5 in front end
The long nozzle port of export further dissipation molten steel potential energy to mitigate the impact to Metal in Tundish；The loudspeaker of another aspect the present embodiment
Open area is smaller, and impact depth is smaller, early period molten steel depth than it is shallower when, refractory material will not be flushed to, slag blanket is not yet
Easily it is involved in molten steel.
The present embodiment is that the structure of long nozzle is coordinated to improve, and has also been devised and a kind of is blown using the long nozzle device
The method of argon, detailed process are：Ladle water outlet 1 is opened first, after confirming that ladle water outlet 1 can be opened, ladle is discharged
Mouthful 1 closes, then the rim of a bowl of long nozzle ontology 3 is docked with ladle water outlet 1, by Argon conduit 4 to 5 Argon of Zhu Liu areas, so
Second of opening ladle water outlet 1, which is opened, afterwards pours molten steel, controls the argon flow amount being blown at this time in the range of 30-40L/h, Argon pressure
Power is in the range of 0.1-1Mpa.Argon gas rises to the argon gas atmosphere that seal area forms micro-positive pressure under this condition, can effectively prevent
Molten steel air-breathing, the kinetic energy that Qie Zhuliu areas molten steel dissipates can fully smash argon gas, form minute bubbles, into tundish with into one
Removal of inclusions is walked, ensures the cleanliness factor of molten steel.
Embodiment 2
A kind of argon blowing seal of the present embodiment and the long nozzle device of purifying of steel, substantially with embodiment 1, difference
It is：The present embodiment is setting Zhu Liu areas 5 at long water gap bowl mouth lower part 140cm, and 5 intracavity diameter of Zhu Liu areas is both ends Chang Shui
1.3 times of mouth 3 intracavity diameter of ontology.On 5 side wall of Zhu Liu areas, distance Zhu Liu areas 5 and 3 boundary position 30cm of upper end long nozzle ontology
Place is equipped with two rows of Argon conduits being uniformly distributed circumferentially, 6 Argon conduits of often row's setting.And for the structure for coordinating long nozzle
It improves, the present embodiment controls the argon flow amount being blown into the range of 50-60L/h, Argon after second is opened ladle water outlet
Pressure is in the range of 0.5-1.5Mpa.
Embodiment 3
A kind of argon blowing seal of the present embodiment and the long nozzle device of purifying of steel, substantially with embodiment 1, difference
It is：The present embodiment is setting Zhu Liu areas 5 at long water gap bowl mouth lower part 170cm, and 5 intracavity diameter of Zhu Liu areas is both ends Chang Shui
1.8 times of mouth 3 intracavity diameter of ontology.On 5 side wall of Zhu Liu areas, distance Zhu Liu areas 5 and 3 boundary position 30cm of upper end long nozzle ontology
Place is equipped with two rows of Argon conduits being uniformly distributed circumferentially, 5 Argon conduits of often row's setting.And for the structure for coordinating long nozzle
It improves, the present embodiment controls the argon flow amount being blown into the range of 40-50L/h, Argon after second is opened ladle water outlet
Pressure is in the range of 1-2Mpa.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, attached drawing
Shown in be also the utility model one of embodiment, practical structure is not limited thereto.So if this field
Those of ordinary skill enlightened by it, without deviating from the purpose of the present invention, not inventively design
The frame mode similar to the technical solution and embodiment, all should belong to the protection range of the utility model.
Claims (8)
1. the long nozzle device of a kind of argon blowing seal and purifying of steel, including long nozzle ontology (3), the long nozzle ontology (3)
It is internally provided with hollow cavity, it is characterised in that：Intracavity diameter is more than both ends intracavity diameter in the middle part of long nozzle ontology (3), forms storage
It flows area (5).
2. the long nozzle device of a kind of argon blowing seal according to claim 1 and purifying of steel, it is characterised in that：Described
Long nozzle ontology (3) one end sets the rim of a bowl, the rim of a bowl docking ladle water outlet (1), and is set between the rim of a bowl and ladle water outlet (1)
Put seal washer (2).
3. the long nozzle device of a kind of argon blowing seal according to claim 2 and purifying of steel, it is characterised in that：Described
Zhu Liu areas (5) pass through Argon by being provided with argon blowing hole, Argon conduit (4) connection argon blowing hole, argon gas on one end side wall of near bowl mouth
Conduit (4) is blown into long nozzle Zhu Liu areas (5).
4. the long nozzle device of a kind of argon blowing seal according to claim 3 and purifying of steel, it is characterised in that：Described
Argon conduit (4) is provided at circumferentially spaced 4-6 along Zhu Liu areas (5) side wall.
5. the long nozzle device of a kind of argon blowing seal according to claim 3 and purifying of steel, it is characterised in that：Described
On Zhu Liu areas (5) side wall, distance Zhu Liu areas (5) are with being equipped with an at least row edge at upper end long nozzle ontology (3) boundary position 30cm
Circumferential equally distributed Argon conduit (4), 4-6 Argon conduit (4) of often row's setting.
6. existed according to a kind of argon blowing seal of claim 1-5 any one of them and the long nozzle device of purifying of steel, feature
In：Described Zhu Liu areas (5) intracavity diameter is 1.3-1.8 times of both ends long nozzle ontology (3) intracavity diameter.
7. the long nozzle device of a kind of argon blowing seal according to claim 6 and purifying of steel, it is characterised in that：Described
Zhu Liu areas (5) are arranged at the 140-170cm of the rim of a bowl lower part.
8. the long nozzle device of a kind of argon blowing seal according to claim 6 and purifying of steel, it is characterised in that：Described
Long nozzle ontology (3) exports 10cm sections of setting horn mouths (6), and horn mouth (6) intracavity diameter is straight for long nozzle ontology (3) inner cavity
1.4-1.6 times of diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721687000.9U CN207521700U (en) | 2017-12-07 | 2017-12-07 | A kind of long nozzle device of argon blowing seal and purifying of steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721687000.9U CN207521700U (en) | 2017-12-07 | 2017-12-07 | A kind of long nozzle device of argon blowing seal and purifying of steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207521700U true CN207521700U (en) | 2018-06-22 |
Family
ID=62578904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721687000.9U Withdrawn - After Issue CN207521700U (en) | 2017-12-07 | 2017-12-07 | A kind of long nozzle device of argon blowing seal and purifying of steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207521700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107755679A (en) * | 2017-12-07 | 2018-03-06 | 安徽工业大学 | The long nozzle device and argon jetting method of a kind of argon blowing seal and purifying of steel |
-
2017
- 2017-12-07 CN CN201721687000.9U patent/CN207521700U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107755679A (en) * | 2017-12-07 | 2018-03-06 | 安徽工业大学 | The long nozzle device and argon jetting method of a kind of argon blowing seal and purifying of steel |
| CN107755679B (en) * | 2017-12-07 | 2023-09-19 | 安徽工业大学 | Argon blowing sealing and molten steel cleaning long nozzle device and argon blowing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111136256A (en) | Molten steel continuous casting equipment and continuous casting method | |
| CN102728827B (en) | Continuous casting tundish capable of improving molten steel cleanliness | |
| EP3827915A1 (en) | Tundish | |
| CN103586445A (en) | Slag blocking type casting ladle | |
| CN207521700U (en) | A kind of long nozzle device of argon blowing seal and purifying of steel | |
| CN107755679A (en) | The long nozzle device and argon jetting method of a kind of argon blowing seal and purifying of steel | |
| CN108927511A (en) | A kind of long nozzle preventing outlet flow deflection | |
| CN201988711U (en) | Novel continuous casting tundish turbulence controller | |
| CN209035415U (en) | A kind of sealed feed trumpet | |
| CN205270835U (en) | Package be built by contract argon blowing device in middle of continuous slab casting | |
| CN102847899A (en) | Method for improving cleanliness of casting blank | |
| CN207592770U (en) | It is a kind of to be used to prevent molten steel in the argon seal ring of casting process secondary oxidation | |
| CN212704345U (en) | Anti-leakage upper nozzle and tundish | |
| CN107983943A (en) | A kind of system and method for improving tundish Cleanliness of Molten Steel under unstable state state | |
| CN212761100U (en) | Submersed nozzle for square billet | |
| CN210730971U (en) | Tundish | |
| CN209830256U (en) | Novel immersed pouring ladle long nozzle | |
| CN207982293U (en) | Molten metal tundish | |
| CN102642017B (en) | Ladle bottom structure of continuous casting ladle | |
| CN203292475U (en) | Four-hole type submersed nozzle used for FTSC sheet billet continuous casting crystallizer with high pulling speed | |
| CN201313174Y (en) | Upper honeycomb duct and tundish thereof for vacuum ingot casting | |
| CN207547622U (en) | The special-shaped double-side-hole submersed nozzle of slab | |
| CN106270431A (en) | Promote tundish metallurgy ability and reduce argon-blowing device and the using method of mouth of a river wadding stream | |
| CN202684061U (en) | Tundish molten steel buffer device | |
| CN201265718Y (en) | Aluminum silicate water gap washer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180622 Effective date of abandoning: 20230919 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180622 Effective date of abandoning: 20230919 |