CN207982293U - Molten metal tundish - Google Patents
Molten metal tundish Download PDFInfo
- Publication number
- CN207982293U CN207982293U CN201820318705.1U CN201820318705U CN207982293U CN 207982293 U CN207982293 U CN 207982293U CN 201820318705 U CN201820318705 U CN 201820318705U CN 207982293 U CN207982293 U CN 207982293U
- Authority
- CN
- China
- Prior art keywords
- tundish
- hole
- turbulator
- screen pipe
- molten metal
- 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.)
- Active
Links
Landscapes
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model is related to a kind of molten metal tundish, including tundish ontology, permanent layer and working lining, middle water containing opening, slag blocking wall, turbulator, partial flow filter, it is embedded in several in partial flow filter and carries through-hole and V-shaped screen pipe, it is characterized in that the input end with through-hole and V-shaped screen pipe is inclined at impact zone, and import is towards turbulator, with through-hole and the outlet end of V-shaped screen pipe is located at pouring area, and outlet is set up, with through-hole and the lower section of the outlet end passageways of V-shaped screen pipe be equipped with air permeable plate, argon gas room is equipped with below air permeable plate, the leakproof equipped with multiple convex-concave structures is bored on the inner wall of the turbulator.Its advantage is that：The specific surface area for increasing current divider unit volume and steel contacts to the maximum extent improves the probability of field trash and current divider collision, improves the impurity effect in removal molten steel.
Description
Technical field
The utility model is related to a kind of processing equipment of molten metal, especially a kind of molten metal tundish.
Background technology
Tundish is an intermediate receptacle between ladle and crystallizer, and effect is that decompression, current stabilization, slagging-off and storage steel shunt,
Realize tundish metallurgy.It is modern metallurgical Molten Steel Cleanliness to be required increasingly with higher and higher to steel products quality requirement
It is high.Field trash is present in as independent entry in steel, destroys the continuity of steel matrix, increases the inhomogeneities organized in steel,
The various performances of steel have been seriously affected, meanwhile, steel inclusion also easily causes continuous casting billet and stocking defect, causes waste product.Cause
This, removal of inclusions improves the important goal that Cleanliness of Molten Steel is modern technical field of smelting.Tundish is not merely
One transition container, but strive the further removal of inclusions in tundish, prevent the secondary pollution of molten steel from further carrying
The degree of purity of high molten steel.
In order to achieve the purpose that clean molten steel, blow about tundish disclosed in Chinese patent literature CN2863314Y
Dam is directed to that band pressure nitrogen gas is used to form air blowing dam in continuous casting production across air brick to remove in molten steel
The tundish air blowing dam device of impurity, a kind of turbulence inhibitor involved in document CN2863315Y, using in controller
Bottom access can insufflation nitrogen make the anti-turbulence device by air brick therein.It is disclosed in Chinese patent literature CN265824Y
A kind of continuous casting production with guiding device, the patent are led between the impact zone and pouring area of tundish equipped with " bottom pouring type "
Circulation road.It reduces in steel and is mingled with content, improve the cleannes of molten steel.But due to flow-guiding channel and diversion pipe smooth interior surfaces,
Still Inclusion Problem in steel cannot be solved.
CN201030436Y discloses a kind of tundish filter, including matrix, and matrix is equipped with several small with poly- slag
The special-shaped through-hole in hole.The abnormity through-hole is provided with the poly- slag aperture of a small-bore right over clear opening.The filter increases
Filter hole adsorbance, but complexity is processed, poly- slag aperture is easily blocked.
201124222 Y of CN disclose a kind of tundish filter of multiple filtration column combination, more using being equipped on bottom plate
Root Filter column, forms Filter column sub-assembly, and multiple Filter column sub-assemblies are superimposed together to form multiple filtration column combination part up and down.
The filter has considered metal fluidity and impurity removal effect, and everyway improves to some extent, still, the apparatus structure phase
To complexity, cost of manufacture is higher, is easy to break up layer by molten steel in the actual production process.In Chinese patent literature CN265824Y
A kind of continuous casting production with guiding device is disclosed, which is equipped with " bet between the impact zone and pouring area of tundish
Formula " flow-guiding channel.It reduces in steel and is mingled with content, improve the cleannes of molten steel.But due to flow-guiding channel and water conservancy diversion pipe internal surface
Smoothly, easily occurs turbulent flow when onsite application, slagging-off effect is undesirable, and catheter length is single, dross easily occurs, to being mingled with floating
Except unfavorable.
Chinese patent 2014207958040 discloses a kind of " tundish filtering, gettering current divider ", mainly by tundish
Ontology has permanent layer and working lining on tundish ontology, and the middle water containing opening on tundish ontology bottom surface is arranged, and setting is intermediate
Intrinsic slag blocking wall is wrapped, turbulence inhibitor is located at the lower section of tundish impact area long nozzle, the connection of the pouring area setting
The partial flow filter of impact zone, partial flow filter are arranged in the lower section of slag blocking wall, and by partial flow filter ontology, are embedded in shunting
Several in filter body are formed with through-hole and V-shaped or " U " font filtration members.
But there is also following shortcomings for existing tundish：
1）Though having slag blocking wall in tundish, since the outlet end of " V " font or the filtration members of " U " font is directly right
Tundish upper nozzle, there are short circuit phenomenons for the flow direction of partial flow filter design, and part steel stream is made to flow directly into water on tundish
Mouthful, molten steel is short in the tundish residence time, is unfavorable for being mingled with floating and removal.
2）Existing turbulator is since inside bottom is planar design, and not impact resistance, turbulator inner cavity force resolution is bad,
The overwhelming majority flings lower part, keeps the impact force that turbulator lower part is born big, causes breakdown turbulator.
3）It is mingled in the prior art in order to remove, also has the installation air screen barricade between slag blocking wall and dam, but due to peace
Holding position is unreasonable, and since the shape of tundish is trapezium structure, air screen barricade is mounted on packet bottom, and causing cannot a hundred percent gas
Screen.
4）The stomata of air screen barricade is disperse formula or chivalrous seam structure, and air vent aperture is more than 1.0 mm, causes gas flow
Excessive, some gases do not have enough time being discharged, and take to and pollute molten steel in molten steel.
5）Former slag absorbing filtering current shunt is difficult that the little particle of 50 μm of removal is mingled with.
Invention content
The purpose of this utility model is to provide a kind of ratio increasing current divider unit volume and steel contacts to the maximum extent
Surface area, improves field trash and on the other hand the probability of current divider collision substantially improves the flowing shape of molten steel in tundish
State can further increase the molten metal tundish of the impurity effect in removal molten steel.
The purpose of this utility model is realized by following technical proposals：
A kind of molten metal tundish of the utility model, including tundish ontology have permanent layer on tundish ontology
And working lining, the middle water containing opening on tundish ontology bottom surface is set, the intrinsic slag blocking wall of tundish, the pushing off the slag are set
Tundish ontology is divided into impact zone and pouring area by wall, and turbulator is located at the lower section of tundish impact area long nozzle, in slag blocking wall
Lower part be equipped with partial flow filter, for being connected to pouring area and impact zone, several have been embedded in logical in partial flow filter
Hole and V-shaped screen pipe, it is characterised in that the input end with through-hole and V-shaped screen pipe tilts
It is arranged in impact zone, and import, towards turbulator, with through-hole and the outlet end of V-shaped screen pipe is located at pouring area,
And outlet set up, with through-hole and the lower section of the outlet end passageways of V-shaped screen pipe be equipped with air permeable plate,
Argon gas room is equipped with below air permeable plate, argon gas room is connected by appendix with mechanism of supplying gas, in the inner wall of the turbulator
The leakproof for being equipped with multiple convex-concave structures is bored.
Further, the mechanism of supplying gas includes outer cover body, and the air inlet pipe in outer cover body side is arranged, and described is outer
The outside of shell ontology is cylinder or frustum cone structure, the gas tank of inverted trapezoidal structure is equipped in outer cover body, in inverted trapezoidal structure
Gas tank is equipped with the open and close valve of matched inverted trapezoidal, and appendix passes through outer cover body and open and close valve and inverted trapezoidal structure
Gas tank is connected, and is equipped with into compression ring in the junction of air inlet pipe and the gas tank of inverted trapezoidal structure.
Further, uniformly it is provided with steel outlet hole on the both ends side wall of the turbulator.
Further, the leakproof cone of the convex-concave structure is triangle, inverted trapezoidal or the semicircle of the interspersed setting of size.
Further, the aperture of the air permeable plate is 0.05mm-0.98mm.
The utility model has the advantages that：
1）The utility model is provided with air permeable plate in the lower section of partial flow filter and argon gas conveying mechanism, argon gas form independence
Small bubble again filters filtered molten steel, takes away 50 μm in steel of molecule and is mingled with, filter effect is very good.
2）Leakproof due to being equipped with multiple convex-concave structures on the inner wall of turbulator is bored, and on the two side of turbulator
It is even to be provided with steel outlet hole, impact force of the molten steel to turbulator is effectively decomposed, while molten steel can also be made to stir, and extend molten steel
Residence time in tundish is long, is conducive to uniform molten steel composition and removal is mingled with.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the portions the A enlarged drawing of Fig. 1.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and examples.
As shown in Figs. 1-2, a kind of molten metal tundish of the utility model, including tundish ontology 1, tundish sheet
There are permanent layer 8 and working lining 9 on body 1, the middle water containing opening 12 in 1 bottom surface of tundish ontology is set, is arranged in tundish ontology 1
Slag blocking wall 2, tundish ontology is divided into impact zone and pouring area by the slag blocking wall 2, and it is long that turbulator 3 is located at tundish impact area
The lower section at the mouth of a river 4 is equipped with partial flow filter 5, for being connected to pouring area and impact zone, in shunt filtering in the lower part of slag blocking wall 2
Device 5 is embedded in several and carries through-hole and V-shaped screen pipe 6, it is characterised in that described carries through-hole and be in " V "
The input end of the screen pipe 6 of font is inclined at impact zone, and import is towards turbulator 3, with through-hole and V-shaped
The outlet end of screen pipe 6 is located at pouring area, and outlet is set up, with through-hole and V-shaped screen pipe 6 goes out
The lower section in mouth end channel is equipped with air permeable plate 11, and the aperture of air permeable plate 11 is 0.05mm-0.98mm, can be according to steel grade and logical steel
It measures to design.The purpose for installing air permeable plate 11 additional is to allow argon gas at independent minute bubbles, and the upward thrust of molten steel is exported to screen pipe 6,
Make little particle be mingled with to be adsorbed on bubble, and float to molten steel surface, while molten steel short circuit can also be prevented, realizes 100% mistake
Filter.
The utility model is equipped with argon gas room 13 below air permeable plate 11, and argon gas room 13 passes through appendix 15 and mechanism of supplying gas
10 are connected, the leakproof cone 7 equipped with multiple convex-concave structures on the inner wall of the turbulator 3, the two of the turbulator 3
Steel outlet hole 14 is uniformly provided on the wall of end side.According to the shape of steel -passing amount and tundish by the leakproof cone of convex-concave structure 7 be designed to
Triangle, inverted trapezoidal or the semicircle of the interspersed setting of size.
It can prevent molten steel using this turbulator to puncture turbulator bottom, bleed-out accident occur, while molten steel being made to fill
Divide stirring, extends molten steel in the residence time of tundish, advantageous non-uniform components and removal are mingled with, and improve the quality of steel product.
Further, mechanism described in the utility model of supplying gas includes outer cover body 10-4, is arranged in outer cover body 10-4 mono-
The outside of the air inlet pipe 10-1, the outer cover body 10-4 of side are cylinder or frustum cone structure, are equipped in outer cover body 10-4
The gas tank 10-2 of trapezium structure is equipped with the open and close valve 10- of matched inverted trapezoidal on the gas tank 10-2 of inverted trapezoidal structure
3, appendix 15 is connected across outer cover body 10-4 and open and close valve 10-3 with the gas tank 10-2 of inverted trapezoidal structure, in air inlet pipe
The junction of the gas tank 10-2 of 10-1 and inverted trapezoidal structure is equipped with into compression ring 10-5.It can be according to the ventilatory capacity of tundish pouch-type, really
Determine the installation site and mode of gas pipeline.The mechanism of supplying gas of this structure is simple in structure, securely and reliably.
The utility model increases current divider unit volume and the specific surface area of steel contacts to the maximum extent, improves field trash
On the other hand the nowed forming of molten steel in tundish is substantially improved, removal can be further increased with the probability of current divider collision
Impurity effect in molten steel.
Claims (5)
1. a kind of molten metal tundish, including tundish ontology, there are permanent layer and working lining, setting to exist on tundish ontology
Middle water containing opening on tundish ontology bottom surface, is arranged the intrinsic slag blocking wall of tundish, and the slag blocking wall is by tundish ontology
It is divided into impact zone and pouring area, turbulator is located at the lower section of tundish impact area long nozzle, and shunting is equipped in the lower part of slag blocking wall
Filter is embedded in several with through-hole and V-shaped for being connected to pouring area and impact zone in partial flow filter
Screen pipe, it is characterised in that the input end with through-hole and V-shaped screen pipe is inclined at impact zone, and
Import is towards turbulator, and with through-hole and the outlet end of V-shaped screen pipe is located at pouring area, and outlet is set up,
With through-hole and the lower section of the outlet end passageways of V-shaped screen pipe be equipped with air permeable plate, below air permeable plate be equipped with argon
Gas chamber, argon gas room are connected by appendix with mechanism of supplying gas, and multiple convex-concave knots are equipped on the inner wall of the turbulator
The leakproof of structure is bored.
2. molten metal tundish according to claim 1, it is characterised in that the mechanism of supplying gas includes shell sheet
The air inlet pipe in outer cover body side is arranged in body, and the outside of the outer cover body is cylinder or frustum cone structure, in outer cover body
The interior gas tank equipped with inverted trapezoidal structure is equipped with the open and close valve of matched inverted trapezoidal on the gas tank of inverted trapezoidal structure, defeated
Tracheae passes through outer cover body and open and close valve to be connected with the gas tank of inverted trapezoidal structure, in the gas tank of air inlet pipe and inverted trapezoidal structure
Junction is equipped with into compression ring.
3. molten metal tundish according to claim 1, it is characterised in that in the both ends side wall of the turbulator
On be uniformly provided with steel outlet hole.
4. molten metal tundish according to claim 1, it is characterised in that the leakproof of the convex-concave structure, which is bored, is
Triangle, inverted trapezoidal or the semicircle of the interspersed setting of size.
5. molten metal tundish according to claim 1, it is characterised in that the aperture of the air permeable plate is
0.05mm-0.98mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820318705.1U CN207982293U (en) | 2018-03-08 | 2018-03-08 | Molten metal tundish |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820318705.1U CN207982293U (en) | 2018-03-08 | 2018-03-08 | Molten metal tundish |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207982293U true CN207982293U (en) | 2018-10-19 |
Family
ID=63826530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820318705.1U Active CN207982293U (en) | 2018-03-08 | 2018-03-08 | Molten metal tundish |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207982293U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614350A (en) * | 2019-10-11 | 2019-12-27 | 马鞍山钢铁股份有限公司 | Method for reducing casting residue of tundish of 2-machine 2-flow slab continuous casting machine |
| CN116079040A (en) * | 2022-12-09 | 2023-05-09 | 鞍山腾钢耐火材料有限公司 | Argon blowing and impurity sucking filter for continuous casting tundish and working method thereof |
| CN117862430A (en) * | 2023-12-22 | 2024-04-12 | 鞍钢股份有限公司 | Device and method for removing inclusions in molten steel in tundish |
-
2018
- 2018-03-08 CN CN201820318705.1U patent/CN207982293U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110614350A (en) * | 2019-10-11 | 2019-12-27 | 马鞍山钢铁股份有限公司 | Method for reducing casting residue of tundish of 2-machine 2-flow slab continuous casting machine |
| CN116079040A (en) * | 2022-12-09 | 2023-05-09 | 鞍山腾钢耐火材料有限公司 | Argon blowing and impurity sucking filter for continuous casting tundish and working method thereof |
| CN117862430A (en) * | 2023-12-22 | 2024-04-12 | 鞍钢股份有限公司 | Device and method for removing inclusions in molten steel in tundish |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207982293U (en) | Molten metal tundish | |
| CN202845761U (en) | Novel tundish for highly purified liquid steel | |
| EP3827915B1 (en) | Tundish for removing inclusions by blowing gas with a gas-curtain weir plate | |
| CN113564309B (en) | Tundish with function of removing molten steel inclusions by blowing argon | |
| CN111136256A (en) | Molten steel continuous casting equipment and continuous casting method | |
| Zhang et al. | Inclusion Invetigation During Clean Steel Production at Baosteel | |
| CN111299566B (en) | Tundish free-flow-injection long-nozzle structure and argon blowing smelting method | |
| CN209239047U (en) | A kind of continuous casting production air swirl filling pipe end brick cup | |
| CN102847899A (en) | Method for improving cleanliness of casting blank | |
| CN110064733A (en) | A kind of castings production running gate system | |
| CN203356580U (en) | Continuous casting tundish with turbulence prevention function | |
| CN109108240A (en) | A kind of continuous casting production air swirl filling pipe end brick cup | |
| CN207828390U (en) | A kind of aluminium casting degasification tank | |
| US5295667A (en) | Tundish baffle with fluted openings | |
| WO2023185874A1 (en) | Method and apparatus for reducing fine inclusions in molten steel | |
| CN205927094U (en) | Steel water purifier guarantees serviceability in middle of continuous casting | |
| CN207521700U (en) | A kind of long nozzle device of argon blowing seal and purifying of steel | |
| CN207547622U (en) | The special-shaped double-side-hole submersed nozzle of slab | |
| CN106825529A (en) | Ferronickel cast iron unit | |
| CN203292475U (en) | Four-hole type submersed nozzle used for FTSC sheet billet continuous casting crystallizer with high pulling speed | |
| CN215279866U (en) | High-quality mould steel purifies casting device | |
| CN111283150A (en) | Filter residue type steel flowing groove for amorphous alloy pouring | |
| CN101791693B (en) | Tundish with quick-replaceable inclusion removing device and operation method thereof | |
| CN105921735B (en) | Tundish gettering filter | |
| CN215845543U (en) | Paper pouring cup |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |