CN1319677C - Method and apparatus of adding alloy into liquid metal - Google Patents
Method and apparatus of adding alloy into liquid metal Download PDFInfo
- Publication number
- CN1319677C CN1319677C CNB031168396A CN03116839A CN1319677C CN 1319677 C CN1319677 C CN 1319677C CN B031168396 A CNB031168396 A CN B031168396A CN 03116839 A CN03116839 A CN 03116839A CN 1319677 C CN1319677 C CN 1319677C
- Authority
- CN
- China
- Prior art keywords
- metal liquid
- submersed nozzle
- alloy
- guide hole
- discharge pipe
- 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
Abstract
The present invention relates to a method for adding alloy to metal liquid. The metal liquid is cast into a crystallizer from a metal liquid storage device via an immersion type discharge pipe; in the immersion type discharge pipe, alloy materials are injected into metal liquid injection flow in the way of ejection or wire feeding. An adding device comprises an immersion type discharge pipe, a gas sealing device, at least one guide pipe and an induction heater, wherein both ends of the immersion discharge pipe are respectively communicated with the metal liquid storage device and the crystallizer, and at least one guide hole is arranged on the immersion type discharge pipe; the gas sealing device is arranged in the position of the guide hole and comprises a body, and at least one gas pipe is arranged on the gas sealing device; the guide pipe is communicated with the guide hole on the immersion type discharge pipe; the induction heater is arranged on the guide pipe. The alloy materials are quickly melted at the high temperature of metal liquid injection flow in the immersion type discharge pipe, obtain powerful injection flow quantity, and are well mixed with the metal liquid. The present invention avoids the oxidation of alloy elements, greatly improves the homogeneity of rare earth elements in steel, enhances the recovery rate of rare earth and eliminates a water nozzle blocking phenomenon.
Description
Technical field
The present invention relates to metal continuous cast and alloying process, particularly be used for the device that the metal liquid alloy adds.
Background technology
China is world's rare earth resources and output big country, adds trace rare-earth in low-alloy steel, steel alloy, improves steel product quality, obtains metallargist's generally understanding already.Yet the output of rare earth steel is also very limited up to now.Its one of the main reasons is exactly also not grasp suitable steel middle rare earth adding method.Can be mingled with by the dystectic oxysulfide of generation after adding rare earth in the molten steel, after these content that are mingled with reach some, can cause middle water containing opening obstruction in the casting process, influence molten steel and normally pour into a mould, and cause continuous casting billet to scrap.In addition, the affinity of rare earth element and oxygen is extremely strong, has both used the method for feeding silk to add rare earth in molten steel, and the rare earth alloy rate of recovery is still quite low, and alters a great deal.In order to solve problems such as the nozzle blocking and the rare earth alloy rate of recovery are quite low, adopted the method for feeding rare-earth wires in crystallizer, but because the mobile smelting condition that waits of molten steel has been determined re inclusion and rare earth element skewness in steel in the crystallizer, arc billet continuous casting machine particularly, the rare earth composition segregation is serious on the cross section, and slab inner arc side re inclusion has big enrichment.For billet caster, because its face size is less, adopts a side line feeding in crystallizer, and require thinner rare-earth wires in order to control addition, this application to rare-earth wires processing and wire-feeding technique has all brought difficulty, has influenced the application of rare earth technology on continuous small-billet casting.
Summary of the invention
The object of the present invention is to provide alloy addition method and device thereof in a kind of metal liquid, can improve the uniformity of rare earth element in steel greatly, improve rare earth yield, eliminate the nozzle clogging phenomenon.
For achieving the above object, technical solution of the present invention is:
Alloy addition method in a kind of metal liquid, metal liquid is poured into crystallizer by submersed nozzle from the metal liquid receptacle, adopts spray regime, utilizes inert gas as carrier, sprays into the graininess alloy material to the molten metal beam in submersed nozzle; Molten metal beam and submersed nozzle inwall keep a fixed gap in the submersed nozzle.
The diameter of described graininess alloy material is 0.2～5.0 millimeter.
The device that is used for the adding of continuous casting of metals liquid alloy of the present invention comprises,
Submersed nozzle, two ends deposit body with molten metal respectively and crystallizer is connected, and has at least one guide hole on it;
Gas-tight sealing is arranged at the guide hole place of submersed nozzle, comprises a body, which is provided with the tracheae of at least one logical inert gas, and the guide hole of submersed nozzle is sealed, and prevents molten metal and adds the oxidation of alloy material;
At least one conduit passes gas-tight sealing, is communicated in the guide hole on the submersed nozzle, adds alloy material by this conduit in the molten metal beam.
In addition, the present invention is used for also being provided with induction heater to the device of continuous casting of metals liquid alloy addition method, and this induction heater is arranged on the conduit, is used for the alloy material that preheating adds.
Again, described submersed nozzle is a tube coupling structure up and down, and following tube coupling caliber is bigger than last tube coupling caliber, makes that the tube coupling inwall keeps a fixed gap under the molten metal beam that flows out the tube coupling from submersed nozzle and the submersed nozzle.
And the tube coupling internal diameter shrinks from top to bottom gradually under the described submersed nozzle.
Described conduit and submersed nozzle be α at angle, and the scope at α angle is 10 °～90 °.
The aperture of described guide hole is greater than the external diameter of described conduit; make as the inert gas of carrier or protective gas and can freely overflow from guide hole, inert gas is not brought in the molten metal when avoiding that inert gas is overflowed in the molten metal in crystallizer the influence to crystallizer metal bath surface stability substantially into.
Beneficial effect of the present invention,
The present invention adds alloy in the molten metal beam in the continuous cast mold submersed nozzle, as the molten metal beam in submersed nozzle adds alloy material by injection or injection feeding technology, the at high temperature very fast fusing of alloy material, and obtain powerful beam momentum, with molten metal fabulous mixing arranged, stopped the oxidation of alloying element; And, improve the uniformity of rare earth element in metal liquid greatly, improve the rate of recovery of rare earth, eliminate the nozzle clogging phenomenon, help the raising that the rare earth technology is applied rare earth steel output greatly.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is the A portion enlarged diagram of Fig. 1.
Fig. 3 is one embodiment of the invention schematic diagram.
Fig. 4 is the another embodiment of the present invention schematic diagram.
Fig. 5 is a kind of structural representation of submersed nozzle among the present invention.
The specific embodiment
As Fig. 1, shown in Figure 2, alloy addition method is in the continuous casting of metals liquid of the present invention: molten metal beam 2 is poured into crystallizer 4 by submersed nozzle 3 from metal liquid receptacle 1, in this process, make the metal liquid that metal liquid receptacle 1 flows out after shrinking, flow into submersed nozzle 3 by the ring-like mouth in submersed nozzle 3 tops, make and form one section space between molten metal beam 2 and submersed nozzle 3 inwalls, perforate on the submersed nozzle 3 of this gap, insert conduit 6, in molten metal beam 2, add alloy material by this conduit 6, and conduit 6 does not contact with molten metal beam 2.
Alloy adding apparatus in the continuous casting of metals liquid comprises submersed nozzle 3, gas-tight sealing 5, conduit 6, induction heater 7; Wherein, submersed nozzle 3 two ends are deposited 20 with metal liquid respectively and are put device 1 and crystallizer 4 is connected, and have a guide hole 31 on it; Gas-tight sealing 5 is arranged at guide hole 31 places of submersed nozzle 3, comprise body 51, in be provided with up and down two row's ring-type tracheaes 52, argon and nitrogen protective gas are by this two rows ring-type tracheae 52, can overflow from gas locking device 5 upper and lower parts, be blown on submersed nozzle 3 outer walls, not oxidized with protection submersed nozzle 3 guide holes, 31 place's molten metals and adding alloy; Conduit 6 passes gas-tight sealing 5, is communicated in the guide hole 31 on the submersed nozzle 3, and with submersed nozzle 3 α at angle, the aperture of this guide hole 31 is greater than the external diameter of described conduit 6; Induction heater 7 is arranged at conduit 6 outsides.
Referring to Fig. 3, the present invention shown in it adds alloy and adopts spray regime in the molten metal beam in the continuous cast mold submersed nozzle, utilizing inert gas as carrier, is carrier gas with argon gas or nitrogen promptly, and spraying into diameter to the molten metal beam is 0.2～5.0 millimeter alloying pellet; Alloy material sprays in jars 11 30 graininess alloy material 9 and is sprayed into flexible pipe 8 by argon or nitrogen jet carrier gas flexible pipe 10, flexible pipe 8 is communicated in conduit 6, conduit 6 passes gas-tight sealing 5, is communicated in the guide hole 31 on the submersed nozzle 3, and induction heater 7 is arranged on the conduit 6; Graininess alloy material 9 is gone in the molten metal beam in the submersed nozzle 3 by argon gas or nitrogen jet, at high temperature very fast fusing; Simultaneously, under the effect of molten metal beam, obtain powerful beam momentum, fabulous mixing arranged, in crystallizer 4, get 5 to fully stirring with molten metal.Because one section space of existence after the molten metal beam 2 of ring-like mouth of a river contraction flows into submersed nozzles 3 and between submersed nozzle 3 inwalls, on the submersed nozzle 3 of this gap, convince hole 31 by patient analysis, insert the conduit 6 that adds alloy material, conduit 6 does not contact with molten metal beam 2;
See also Fig. 5, described submersed nozzle 3 also can be tube coupling structure up and down, and following tube coupling 33 calibers are bigger than last tube coupling 32 calibers, and following tube coupling 33 internal diameters shrink from top to bottom gradually; Make the molten metal beam 2 that from immersion 10 discharge pipes 3, flows out the tube coupling 32 keep a fixed gap, the conduit 6 of insertion is not contacted with molten metal beam 2 with 3 times tube coupling 33 inwalls of submersed nozzle.
See also Fig. 4 again; the present invention shown in it adopts the line feeding mode to add alloy in the molten metal beam in the continuous cast mold submersed nozzle; promptly will be under inert gas such as argon gas or protection of nitrogen gas that wireway 12 is introduced, in the molten metal beam in the conduit 6 feeding submersed nozzles 3 as the alloy silk of alloy material 9 or alloy claded wire with feeding wire machine 13.To molten metal beam feeding diameter 0.5～5.0 millimeter alloy silk or alloy claded wire.
The alloy material that adds enters the molten metal beam, at high temperature very fast fusing, under the effect of molten metal beam, obtain powerful beam momentum, with molten metal fabulous mixing arranged, in crystallizer, fully stirred, and stopped to add the oxidative phenomena of alloying element, alloying component skewness in the strand there is no the dross phenomenon in the cast.
The present invention can be used for the adding of RE alloyed and other easy oxide alloy etc., comprise aluminium final deoxidizing and alloying, improve the uniformity of rare earth element in steel greatly, improve the rate of recovery of rare earth, eliminate the nozzle clogging phenomenon, help the rare earth technology greatly and apply raising with rare earth steel output.
Claims (8)
1. one kind is used for the device that the metal liquid alloy adds, and it is characterized in that, comprising:
Submersed nozzle, its two ends are connected with metal liquid receptacle and crystallizer respectively, have at least one guide hole on it;
Gas-tight sealing is arranged at the guide hole place of submersed nozzle, comprises a body, which is provided with the tracheae of at least one logical inert gas;
At least one conduit is communicated in the guide hole on the submersed nozzle, and is arranged in gas-tight sealing.
2. the device that is used for the adding of metal liquid alloy as claimed in claim 1 is characterized in that also be provided with induction heater, this induction heater is arranged at the conduit outside.
3. the device that is used for the adding of metal liquid alloy as claimed in claim 1, it is characterized in that, described submersed nozzle is a tube coupling structure up and down, following tube coupling caliber is bigger than last tube coupling caliber, makes that the tube coupling inwall keeps a fixed gap under the molten metal beam that flows out the tube coupling from submersed nozzle and the submersed nozzle.
4. the device that is used for the adding of metal liquid alloy as claimed in claim 3 is characterized in that the tube coupling internal diameter shrinks from top to bottom gradually under the described submersed nozzle.
5. as claim 1 or the 3 or 4 described devices that are used for the adding of metal liquid alloy, it is characterized in that described conduit and submersed nozzle be α at angle.
6. the device that is used for the adding of metal liquid alloy as claimed in claim 5 is characterized in that the scope at described α angle is 10 °～90 °.
7. the device that is used for the adding of metal liquid alloy as claimed in claim 1 is characterized in that described tracheae is a ring-type.
8. the device that is used for the adding of metal liquid alloy as claimed in claim 1 is characterized in that the aperture of described guide hole is greater than described conduit external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031168396A CN1319677C (en) | 2003-05-09 | 2003-05-09 | Method and apparatus of adding alloy into liquid metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031168396A CN1319677C (en) | 2003-05-09 | 2003-05-09 | Method and apparatus of adding alloy into liquid metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1548257A CN1548257A (en) | 2004-11-24 |
| CN1319677C true CN1319677C (en) | 2007-06-06 |
Family
ID=34320488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031168396A Expired - Fee Related CN1319677C (en) | 2003-05-09 | 2003-05-09 | Method and apparatus of adding alloy into liquid metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1319677C (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2288280C1 (en) * | 2005-03-10 | 2006-11-27 | Виктор Николаевич Хлопонин | Method of acting on chemical composition of molten steel and equipment complex for realization of this method |
| CN100513009C (en) * | 2007-08-03 | 2009-07-15 | 钢铁研究总院 | Method for dispersion implanting fine heterogeneous particles during metal freezing course and added raw material |
| CN102527965A (en) * | 2010-12-11 | 2012-07-04 | 鞍钢股份有限公司 | Method for desulfurizing in continuous casting process and pouring box wire feeding device thereof |
| CN102527962A (en) * | 2010-12-15 | 2012-07-04 | 鞍钢股份有限公司 | Adding device and adding method for metal calcium in continuous casting process |
| CN102554159A (en) * | 2010-12-15 | 2012-07-11 | 鞍钢股份有限公司 | Device and method for feeding rare earth alloy during continuous casting process |
| CN104404281B (en) * | 2014-11-28 | 2016-09-14 | 山东中佳新材料有限公司 | A kind of alloying element charging method and device |
| CN104874779B (en) * | 2015-04-22 | 2017-01-04 | 钢铁研究总院 | A kind of tundish alloying Apparatus and method for of low boiling rare precious metal |
| CN106319469B (en) * | 2016-10-28 | 2018-08-24 | 中国科学院宁波材料技术与工程研究所 | A kind of preparation method of copper and indium gallium alloy target |
| CN107127312B (en) * | 2017-06-07 | 2022-11-22 | 山东钢铁股份有限公司 | Equipment and method for producing composite continuous casting billet |
| CN108176844B (en) * | 2018-01-15 | 2019-07-05 | 山东钢铁股份有限公司 | A kind of device and method for clearing up tundish upper nozzle dross object |
| CN111451462B (en) * | 2020-04-09 | 2021-09-28 | 苏州大学 | Method for refining solidification structure of continuous casting billet by utilizing submerged nozzle to spray magnesium powder |
| CN111304407A (en) * | 2020-04-09 | 2020-06-19 | 苏州大学 | Method for treating molten steel magnesium and calcium by using long nozzle powder injection |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2816867A1 (en) * | 1977-04-18 | 1978-10-19 | Centro Speriment Metallurg | Continuous casting metal such as steel - with metal powder fed by inert gas into casting pipe to cool the molten steel |
| US4391319A (en) * | 1979-08-27 | 1983-07-05 | Keystone Consolidated Industries, Inc. | Apparatus for introducing elements into molten metal streams and casting in inert atmosphere |
| JPH06190516A (en) * | 1992-12-22 | 1994-07-12 | Nippon Steel Corp | Method for cleaning molten steel in tundish |
| JPH08309496A (en) * | 1995-05-15 | 1996-11-26 | Nippon Steel Corp | Manufacture of slab with few inclusion defect |
| JPH10296406A (en) * | 1997-04-28 | 1998-11-10 | Nippon Steel Corp | Stopper rod for continuous casting |
| JP2001150111A (en) * | 1999-11-26 | 2001-06-05 | Kawasaki Steel Corp | METHOD FOR ADDING Bi INTO MOLTEN STEEL |
| JP2002153952A (en) * | 2000-11-21 | 2002-05-28 | Nkk Corp | METHOD FOR PRODUCING Al-KILLED STEEL CAST SLAB |
| CN2568333Y (en) * | 2002-07-19 | 2003-08-27 | 中国科学院精密铜管工程研究中心 | Alloy adding appts. for horizontal continuous casting dynamic alloyed copper |
-
2003
- 2003-05-09 CN CNB031168396A patent/CN1319677C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2816867A1 (en) * | 1977-04-18 | 1978-10-19 | Centro Speriment Metallurg | Continuous casting metal such as steel - with metal powder fed by inert gas into casting pipe to cool the molten steel |
| US4391319A (en) * | 1979-08-27 | 1983-07-05 | Keystone Consolidated Industries, Inc. | Apparatus for introducing elements into molten metal streams and casting in inert atmosphere |
| JPH06190516A (en) * | 1992-12-22 | 1994-07-12 | Nippon Steel Corp | Method for cleaning molten steel in tundish |
| JPH08309496A (en) * | 1995-05-15 | 1996-11-26 | Nippon Steel Corp | Manufacture of slab with few inclusion defect |
| JPH10296406A (en) * | 1997-04-28 | 1998-11-10 | Nippon Steel Corp | Stopper rod for continuous casting |
| JP2001150111A (en) * | 1999-11-26 | 2001-06-05 | Kawasaki Steel Corp | METHOD FOR ADDING Bi INTO MOLTEN STEEL |
| JP2002153952A (en) * | 2000-11-21 | 2002-05-28 | Nkk Corp | METHOD FOR PRODUCING Al-KILLED STEEL CAST SLAB |
| CN2568333Y (en) * | 2002-07-19 | 2003-08-27 | 中国科学院精密铜管工程研究中心 | Alloy adding appts. for horizontal continuous casting dynamic alloyed copper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1548257A (en) | 2004-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1319677C (en) | Method and apparatus of adding alloy into liquid metal | |
| SE0901523A0 (en) | Improved alloy recovery in molten steel baths using cored wire doped with deoxidizing agent | |
| CN110616293A (en) | Method for adding rare earth into molten steel | |
| US20090266506A1 (en) | Method for Continuous Casting of a Metal with Improved Mechanical Strength and Product Obtained by Said Method | |
| WO1993022085A1 (en) | Method of obtaining double-layered cast piece | |
| CN209736576U (en) | Novel rotational flow downward casting device | |
| CN1824428A (en) | Rare earth adding device in sheet blank continuous casting process | |
| AU2003249790B2 (en) | Injection device and process for the injection of a fluid | |
| JP2000317580A (en) | Method for casting copper alloy | |
| CN210132028U (en) | Lower casting device | |
| CN106513602A (en) | Continuous production line technology process of steel wire aluminum | |
| CN2192420Y (en) | Combined bale injection protection and molten steel guide device | |
| KR100356743B1 (en) | Method for manufacturing composite deoxidizer of molten steel and the composite deoxidizer by using the mothod thereof | |
| US4311518A (en) | Homogenization of metal using gas | |
| JP2661797B2 (en) | Multi-layer slab casting method | |
| CN111570782A (en) | Continuous casting submersed nozzle | |
| CN1443866A (en) | Production process of aluminium-containing steel | |
| US4614223A (en) | Methods of adding reactive metals to steels being continuously cast | |
| CN100335660C (en) | Iron core aluminium and its preparation method | |
| CN211689145U (en) | Device for adding rare earth into molten steel | |
| KR100411649B1 (en) | Method for manufacturing composite deoxidizer of molten steel and the composite deoxidizer by using the mothod thereof | |
| KR100426415B1 (en) | Method for manufacturing composite deoxidizer of molten steel and the composite deoxidizer by using the mothod thereof | |
| CN2568333Y (en) | Alloy adding appts. for horizontal continuous casting dynamic alloyed copper | |
| US3910341A (en) | Methods of adding reactive metals to form a remelting electrode | |
| RU2288280C1 (en) | Method of acting on chemical composition of molten steel and equipment complex for realization of this method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BAOSHAN IRON + STEEL CO., LTD. Free format text: FORMER OWNER: BAOSTEEL GROUP SHANGHAI FIRST IRON AND STEEL CO., LTD. Effective date: 20091030 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091030 Address after: Orchard, Fujin Road, Baoshan District, Shanghai Patentee after: Baoshan Iron & Steel Co., Ltd. Address before: No. 735 Changjiang Road, Shanghai, Baoshan District Patentee before: Shanghai First Iron & Steel Co., Ltd., Baogang Group |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070606 |