CN202010771U - Immersion type water port for continuous casting machine - Google Patents
Immersion type water port for continuous casting machine Download PDFInfo
- Publication number
- CN202010771U CN202010771U CN2011200551947U CN201120055194U CN202010771U CN 202010771 U CN202010771 U CN 202010771U CN 2011200551947 U CN2011200551947 U CN 2011200551947U CN 201120055194 U CN201120055194 U CN 201120055194U CN 202010771 U CN202010771 U CN 202010771U
- Authority
- CN
- China
- Prior art keywords
- body part
- molten steel
- water port
- top end
- continuous casting
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model provides an immersion type water port for a continuous casting machine, which can solve the problems existing in the prior art that the impurity content in molten steel can not be effectively reduced, and the distribution uniformity of residual impurities on the casting bar section can not meet the quality requirements on steel products. The technical scheme in the utility model is that the immersion water port for the continuous casting machine comprises a body part and a top end part, wherein the body part is provided with an inner cavity; the top end part and the body part are integrally formed; a side hole is arranged near the top end part; the inner cavity and the side hole are communicated to form a channel for pouring molten steel together; the top end part is provided with a naked porous breathable material; an air inlet hole is arranged near the middle part of the body part; And a gas channel for connecting the air inlet hole with the porous breathable material is arranged in a wall body of the body part. The immersion type water port can prompt impurities in high-temperature molten steel to quickly float upwards, disperses and homogenizes the impurities detained in a casting blank, reduces the impurity content in the casting blank, and prevents the local accumulation of trace impurities on the casting blank section at the same time, thereby improving the quality of the casting blank.
Description
Technical field
The utility model belongs to the metallurgical continuous casting field, specifically, relates to a kind of submersed nozzle that uses at conticaster.
Background technology
In recent years, also more and more higher along with the fast development of high efficiency continuous casting steel-smelting technology to the quality requirement of steel, except that requiring steel will have the strict element ratio control, also require to have minimum impurity content.Especially some is used for making the steel of accurate component or ultrafine metal fittings, and the content of its impurity and the degree of being evenly distributed are had high requirement.In continuous casting process,, adopt submersed nozzle to carry out totally-enclosed pouring molten steel in order to prevent molten steel oxidation, to avoid molten steel and air to come in contact, molten steel is directly entered in the crystallizer by submersed nozzle from tundish, thereby improve steel quality, guarantee that continuous casting carries out smoothly.
Present steel-making and continuous casting technology all use storage or the permeable medium of Inorganic Non-metallic Materials as high-temperature molten steel, therefore are being finally converted into by high-temperature molten steel in the process of strand, just inevitably bring various impurity into.Because present continuous casting technology can't be broken away from the use to Inorganic Non-metallic Materials, most impurity is removed in the basic buoyancy of adopting slag making reaction and density contrast to cause in casting process.In present continuous casting technology, mainly be to rely on the buoyancy of molten steel to make the impurity come-up to the processing mode of the impurity in the molten steel that enters crystallizer, and with the covering slag reaction that covers high-temperature molten steel surface in the crystallizer, reach the purpose of removing impurity.Specifically in casting process, the molten steel that flows into crystallizer by submersed nozzle can have stop slightly in crystallizer, at this moment in the molten steel partial impurities at the buoyancy float downward, and with the covering slag reaction that covers crystallizer surface, reach the purpose of removing impurity.
Because molten steel is limited in the crystallizer time of staying, only depend on buoyancy obviously can not make the impurity come-up of maximum, the molten steel fluidised form complexity in crystallizer simultaneously, the impurity that only depends on stirring to make to be trapped in the molten steel evenly distributes on the strand cross section.
Summary of the invention
The utility model provides a kind of submersed nozzle that uses on conticaster, can solve that prior art exists can not effectively reduce in the molten steel impurity content and on the strand cross section residual impurity distributing homogeneity can not satisfy the problem that steel product quality requires.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of submersed nozzle, comprise the body part that forms inner chamber and with the integrated head portion of described body part, described body part is being provided with side opening near described top ends office, described inner chamber communicates with described side opening and is configured for the passage of pour steel jointly, described head portion is provided with exposed porous air pervious material, be provided with air admission hole near the middle part of described body part, in the wall body of described body part, be provided with the gas passage that connects described air admission hole and porous air pervious material.
Near the air inlet that submersed nozzle of the present utility model is provided with the middle part is stablized source of the gas with the external world and is connected, and source of the gas is inert gas (such as argon gas) normally.In casting process, the head portion of submersed nozzle down and insert in the crystallizer, the gas that source of the gas comes, enter gas passage by air inlet, enter in the porous air pervious material on top, the mouth of a river along gas passage and accumulate in this position, under gas pressure, gas is overflowed in the mode of a large amount of micro-bubbles from the top at the mouth of a river by gas permeable material just with constant flow and flow velocity.Micro-bubble is attached on the impurity in the high-temperature molten steel in the crystallizer, be subjected to high temperature action, its volume expands rapidly significantly, impel impurity to float rapidly, reduced the impurity content in the molten steel, emergent gas dispersion homogenizing is trapped in the impurity in the strand simultaneously, prevents the Local enrichment of trace impurity on the strand cross section, improves slab quality.
Further, described porous air pervious material is an Inorganic Non-metallic Materials.
Further, described Inorganic Non-metallic Materials is one or more the high air penetrability materials by the organic bond be combined in aluminium oxide, silica, the graphite.Described bond is selected common bond commonly used for use.
Compared with prior art, advantage of the present utility model and good effect are:
The submersed nozzle that employing has gas passage uses on conticaster, gas permeable material by top, the mouth of a river overflows inert gas, gas is attached to impelling the impurity in the high-temperature molten steel to float rapidly on the impurity, the dispersion homogenizing is trapped in the impurity in the strand, also prevent the Local enrichment of trace impurity on the strand cross section when reducing the impurity content in the strand, improve slab quality, being in particular some has the continuous casting production of the steel of high requirement that good continuous casting functional refractory is provided to the content of impurity and the degree of being evenly distributed.
Description of drawings
Fig. 1 is the utility model conticaster cutaway view of submersed nozzle when user mode;
Fig. 2 is the A-A cutaway view Amplified image of Fig. 1;
Symbol among the figure and explanation thereof:
1, submersed nozzle; 11, body part; 111, wall body; 112, inner chamber; 113, side opening; 12, head portion; 13, porous air pervious material; 14, air admission hole; 15, gas passage; 2, crystallizer; 3, high-temperature molten steel.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
A kind of submersed nozzle, comprise the body part that forms inner chamber and with the integrated head portion of body part, body part is being provided with side opening near the top ends office, inner chamber communicates with side opening and is configured for the passage of pour steel jointly, head portion is provided with exposed porous air pervious material, be provided with air admission hole near the middle part of body part, in the wall body of body part, be provided with the gas passage that connects air admission hole and porous air pervious material.
Specifically in casting process, air inlet is stablized the inert gas source of the gas with the external world and is connected, the head portion of submersed nozzle down and insert in the crystallizer, gas enters in the porous air pervious material on top, the mouth of a river and accumulates in this position by gas passage, overflow in top from the mouth of a river under gas pressure, the micro-bubble that overflows is attached on the impurity in the high-temperature molten steel in the crystallizer, be subjected to high temperature action, bubble volume expands rapidly significantly, impel impurity to float rapidly, reduced the impurity content in the molten steel, emergent gas dispersion homogenizing is trapped in the impurity in the strand simultaneously, prevent the Local enrichment of trace impurity on the strand cross section, improve slab quality.
As shown in Figure 1, a kind of conticaster schematic diagram of submersed nozzle 1 when user mode, mouth of a river head portion inserts down in the crystallizer 2 that fills with high-temperature molten steel 3 and is used for pour steel.
Submersed nozzle 1 comprises body part 11 and head portion 12, have inner chamber 112 in the middle of the body part 11, body part 11 is being provided with side opening 113 near head portion 12 places, and A-A cutaway view Amplified image as shown in Figure 2, inner chamber 112 communicate with side opening 113 and be configured for the passage of pour steel jointly; Head portion 12 is provided with exposed porous air pervious material 13, this porous air pervious material 13 is an Inorganic Non-metallic Materials, (being the part of submersed nozzle between tundish and crystallizer) is provided with air admission hole 14 near the middle part of body part 11, is provided with the gas passage 15 that connects air admission hole 14 and porous air pervious material 13 in the wall body 111 of body part 11.
Described Inorganic Non-metallic Materials be aluminium oxide, silica or graphite and with the high air penetrability material of organic bond be combined into.
Perhaps, described Inorganic Non-metallic Materials is selected one or more in aluminium oxide, silica, the graphite for use, passes through the high air penetrability material of organic bond be combined into then.Bond is selected common organic bond commonly used for use.For example, organic bond can be a phenolic resins class bond.
Certainly; above-mentioned explanation is not to be to restriction of the present utility model; the utility model also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present utility model also should belong to protection domain of the present utility model.
Claims (2)
1. submersed nozzle, comprise the body part that forms inner chamber and with the integrated head portion of described body part, described body part is being provided with side opening near described top ends office, described inner chamber communicates with described side opening and is configured for the passage of pour steel jointly, described head portion is provided with exposed porous air pervious material, it is characterized in that: be provided with air admission hole near the middle part of described body part, in the wall body of described body part, be provided with the gas passage that connects described air admission hole and porous air pervious material.
2. submersed nozzle according to claim 1 is characterized in that: described porous air pervious material is an Inorganic Non-metallic Materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200551947U CN202010771U (en) | 2011-03-04 | 2011-03-04 | Immersion type water port for continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200551947U CN202010771U (en) | 2011-03-04 | 2011-03-04 | Immersion type water port for continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202010771U true CN202010771U (en) | 2011-10-19 |
Family
ID=44781376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200551947U Expired - Fee Related CN202010771U (en) | 2011-03-04 | 2011-03-04 | Immersion type water port for continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202010771U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570484A (en) * | 2019-01-24 | 2019-04-05 | 北京利尔高温材料股份有限公司 | A kind of ventilative submersed nozzle of bottom blowing |
-
2011
- 2011-03-04 CN CN2011200551947U patent/CN202010771U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109570484A (en) * | 2019-01-24 | 2019-04-05 | 北京利尔高温材料股份有限公司 | A kind of ventilative submersed nozzle of bottom blowing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201249259Y (en) | Slab continuous casting tundish | |
| CN206605009U (en) | Annular cast running gate system | |
| CN101219464A (en) | Continuous casting crystallizer capable of controlling liquid level flow field and wave motion | |
| CN204842961U (en) | Get rid of immersion nozzle of inclusion | |
| CN202224648U (en) | Submersed nozzle for crystallizer for thick plate blanks and blooms | |
| TW200724263A (en) | Process for producing ultra-low-carbon cast slab | |
| CN202010771U (en) | Immersion type water port for continuous casting machine | |
| CN102274962A (en) | Immersion-type downspout used for crystallizer for thick plate blanks and large square blanks | |
| CN104212940A (en) | Method for preventing sulphureous gear steel SAE8620H from clogging nozzle | |
| CN102773442A (en) | Cast-on method for continuously casting half-rimmed steel | |
| CN202129441U (en) | Quick plate blank change argon-blowing-type filling pipe end | |
| CN201823930U (en) | Submerged nozzle with rotary outlet for continuous casting | |
| CN201565600U (en) | Immersion type water opening used for thin plate blank continuous casting crystallizer | |
| CN204799939U (en) | Immersion nozzle structure | |
| US20110309115A1 (en) | Direct side pour riser sleeve | |
| CN202387948U (en) | Slag stopping casting ladle | |
| CN202539557U (en) | 270-degree flat submersed nozzle with high steel flux for continuous casting rectangular billet | |
| CN201760570U (en) | Multi-outlet brake based immersion type water nozzle structure | |
| CN202317001U (en) | Slab continuous casting tundish for reducing residual slag pouring | |
| UA85179C2 (en) | pour tube for casting molten metal and method of its use | |
| CN202052919U (en) | Molten steel supply device for continuous casting in steel making | |
| JP5206591B2 (en) | Tundish for continuous casting | |
| CN213888059U (en) | Pouring cup for casting | |
| CN204276894U (en) | A kind of waveform submersed nozzle | |
| CN2452653Y (en) | Condenser and immersion type pour |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111019 Termination date: 20130304 |