CN2210051Y - Apparatus for heating molten steel in bakie in continuous casting - Google Patents
Apparatus for heating molten steel in bakie in continuous casting Download PDFInfo
- Publication number
- CN2210051Y CN2210051Y CN 94228703 CN94228703U CN2210051Y CN 2210051 Y CN2210051 Y CN 2210051Y CN 94228703 CN94228703 CN 94228703 CN 94228703 U CN94228703 U CN 94228703U CN 2210051 Y CN2210051 Y CN 2210051Y
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- retaining wall
- molten steel
- continuous casting
- bakie
- heating
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
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- Discharge Heating (AREA)
Abstract
The utility model provides a device for heating molten steel for bakie continuous casting, which relates to steel making production of the metallurgical industry. The utility model is composed of a DC power supply, a cathode, an anode, an upper retaining wall, a lower retaining wall, a front retaining wall, a bottom blowing argon hole, a water gap and an electricity collecting plate, wherein, the cathode adopts a plasma gun and is arranged at a bakie top; the anode adopts conductive magnesia-carbon bricks, and is positioned at a bakie bottom. The upper retaining wall is arranged between a current injection zone and a heating zone, and forms a lower empty structure. The lower retaining wall is arranged between the upper retaining wall and a heating point, and forms a half wall upper empty structure. The front retaining wall is arranged between the heating zone and a current dividing zone, and forms a half wall side empty structure. The bottom blowing argon hole is arranged between the heating point and the lower retaining wall. The utility model has the advantages of simple equipment, convenient operation, practicality and reliability, and cast with approximate constant temperature.
Description
The utility model relates to metallurgy industry STEELMAKING PRODUCTION field, especially the device of heating molten steel in the continuous casting tundish.
The liquid steel temperature of continuous casting is one of key factor that guarantees the conticaster ordinary production, the too high meeting of continuous casting molten steel temperature in tundish causes the column crystal of strand too flourishing, and underbead crack is thick, easily causes accidents such as the excessive steel of bleedout, temperature crosses that low then fluidity molten steel is poor, easily blocks the mouth of a river.At present, take the peaceful high not low way of tapping temperature more, so just increased the weight of the thermic load of converter, make the deterioration of steel, furnace life reduces.Advanced in the world production technology is to adopt the direct current plasma heating, clear 59-107755 and clear 61-95755 disclose the heating of two kinds of tundish molten steel, dual mode all adopts the AC plasma rifle to heat, the tundish surrounding devices is more, can utilize the space little, bring many inconvenience in the actual production, the plasma arc shakiness, the thermal efficiency is not high.Clear 57-115674 and clear 54-168780 are two kinds of tundish molten steel induction heatings, the equipment complexity, and the thermal efficiency is low.
The purpose of this utility model is for continuous casting tundish molten steel provides a kind of heater, and the degree of superheat with molten steel in the control tundish realizes the approximately constant temperature cast.
The continuous casting tundish molten steel heater that the utility model is made of dc source, negative electrode, anode, top retaining wall, lower retaining wall, preceding barricade, argon blowing hole of bottom, the mouth of a river, collector plate, it is characterized in that: negative electrode adopts plasma gun or graphite electrode or hollow graphite electrode, places the top of tundish; Anode adopts conducting Mg-C brick or with the structure of the magnesia carbon brick of steel plate parcel; Between the beam district and the thermal treatment zone, top retaining wall is arranged, be hollow structure at the bottom of the half, between top retaining wall and the hot spot lower retaining wall is arranged, be hollow structure on the half, have preceding barricade, preceding barricade to be half side hollow structure between the thermal treatment zone and the shunting zone; Argon blowing hole of bottom is that single hole or the porous that comes on the straight line constitute, between hot spot and lower retaining wall.
The utility model equipment is simple, easy to operate, practical reliable.Can in casting process, heat molten steel, accurately control the degree of superheat of molten steel in the tundish, realize the approximately constant temperature cast.
Accompanying drawings the utility model:
Fig. 1 is the main pseudosection of continuous casting tundish molten steel heater.
Fig. 2 is the main pseudosection that has only lower retaining wall of continuous casting tundish molten steel heater.
Dc source (1) is made up of transformer, rectifier, and rectifier system is 6 arteries and veins, 12 arteries and veins, 18 arteries and veins and 24 arteries and veins.Negative electrode (2) uses direct current plasma rifle, electroslag and three kinds of modes of electric arc to heat, i.e. plasma heating, electroslag heating and electric arc heated.Negative electrode (2) generally is contained in an enterprising line operate of mechanism that can move up and down and rotate, and is positioned at clad (12) middle part, can also also lead to argon gas with stable arc by center drilling when graphite electrode is made negative electrode.Anode loop is formed by conducting Mg-C brick (9) or with the magnesia carbon brick and the collector plate (10) of steel plate parcel.Conducting Mg-C brick (9) is contained in the tundish bottom, or is contained in the tundish sidewall, and the one end contacts conduction with molten steel, and the other end links to each other with collector plate (10), and collector plate (10) links to each other with dc source (1) through cable.It is approaching substantially that conducting Mg-C brick (9) is characterized in reaching in 1600 ℃ of scopes resistivity in normal temperature and temperature, all is the good conductor of electricity, that is to say that tundish also can normally conduct electricity to form the loop under cold state.The mouth of a river (8) is located at preceding barricade (11) one sides.Tundish (4) is the heating steel in water container.Dc source (1), negative electrode (2), molten steel, anode conducting magnesia carbon brick (9), collector plate (10) constitute the loop.Molten steel injects the beam district of tundish (4) through ladle (3), flow out from top retaining wall (5) bottom, flow to the thermal treatment zone through lower retaining wall (6) top, after negative electrode (2) heating and BOTTOM ARGON BLOWING stirring, the preceding barricade (11) of flowing through enters shunting zone, and (8) inflow crystallizers (13) are cast continuous casting billet from the mouth of a river then.
Embodiment 1:
Fig. 1 provides four stream camber continuous casting tundish molten steel heaters.Continuous casting tundish (4) is divided into beam district, the thermal treatment zone and shunting zone, and the clad of tundish (12) middle part is provided with negative electrode (2), and negative electrode (2) uses diameter 70mm tungsten cathode plasma gun.Anode is at the shunting zone sidewall, constitute with conducting Mg-C brick (9) and collector plate (10), be provided with top retaining wall (5) between the beam district and the thermal treatment zone, top retaining wall (5) is following hollow structure, and half lower retaining wall (6) arranged between the hot spot, the preceding barricade (11) of side hollow structure is arranged between the thermal treatment zone and the shunting zone, argon blowing hole of bottom (7) is arranged between lower retaining wall (6) and the hot spot.Dc source transformer capacity 1250KVA, rectifier adopt the 12 pulsation rectifications in parallel of two groups of three-phase bridge, DC voltage 200V, DC current 5500A
Embodiment 2:
Fig. 2 is applicable to double-current horizontal casting tundish molten steel heater.Negative electrode (2) uses φ 150mm hollow graphite electrode, only sets barricade (6) and argon blowing hole of bottom (7) in the tundish, and other is with embodiment 1.
Embodiment 3:
Double fluid horizontal casting tundish molten steel heater, negative electrode (2) uses 150 * 150mm strand to carry out the electroslag heating, and other is with embodiment 1.
Claims (2)
1, a kind of continuous casting tundish molten steel heater that constitutes by dc source, negative electrode, anode, top retaining wall, lower retaining wall, preceding barricade, argon blowing hole of bottom, the mouth of a river, collector plate, it is characterized in that negative electrode adopts plasma gun or graphite electrode or hollow graphite electrode, places the top of tundish; Anode adopts conducting Mg-C brick or with the structure of the magnesia carbon brick of steel plate parcel; Between the beam district and the thermal treatment zone, top retaining wall is arranged, be hollow structure at the bottom of the half, between top retaining wall and the hot spot lower retaining wall is arranged, be hollow structure on the half, have preceding barricade, preceding barricade to be half side hollow structure between the thermal treatment zone and the shunting zone; Argon blowing hole of bottom is that single hole or the porous that comes on the straight line constitute, between hot spot and lower retaining wall.
2, continuous casting tundish molten steel heater according to claim 1 is characterized in that only setting in the tundish (4) barricade (6), argon blowing hole of bottom (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94228703 CN2210051Y (en) | 1994-05-27 | 1994-05-27 | Apparatus for heating molten steel in bakie in continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94228703 CN2210051Y (en) | 1994-05-27 | 1994-05-27 | Apparatus for heating molten steel in bakie in continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2210051Y true CN2210051Y (en) | 1995-10-18 |
Family
ID=33841189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94228703 Expired - Fee Related CN2210051Y (en) | 1994-05-27 | 1994-05-27 | Apparatus for heating molten steel in bakie in continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2210051Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363128C (en) * | 2003-07-02 | 2008-01-23 | 达涅利机械工业有限公司 | A feed device for feeding molten metal into a crystallizer |
| CN102686335A (en) * | 2010-02-19 | 2012-09-19 | 科勃扎-德诺维斯基·维拉德默·伊维根杰维奇 | Method and apparatus for producing steel, and the continuous casting of steel |
| CN102896285A (en) * | 2011-07-29 | 2013-01-30 | 宝山钢铁股份有限公司 | Method and device for continuously casting thin strip |
| CN106001528A (en) * | 2016-07-13 | 2016-10-12 | 北京麦特尔科技有限公司 | Continuous casting tundish direct-current plasma heating device using a plurality of graphite hollow bars as electrodes |
| CN108339970A (en) * | 2017-01-23 | 2018-07-31 | 新日铁住金工程技术株式会社 | Molten steel heating device and heating means |
| CN110871268A (en) * | 2018-09-04 | 2020-03-10 | 上海梅山钢铁股份有限公司 | Equipotential control device and method for plasma heating of continuous casting tundish |
| CN111215613A (en) * | 2020-01-13 | 2020-06-02 | 北京科技大学 | Tundish and using method thereof |
| CN112170796A (en) * | 2019-07-01 | 2021-01-05 | 上海梅山钢铁股份有限公司 | Control method of direct current plasma continuous casting tundish heating arc |
-
1994
- 1994-05-27 CN CN 94228703 patent/CN2210051Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100363128C (en) * | 2003-07-02 | 2008-01-23 | 达涅利机械工业有限公司 | A feed device for feeding molten metal into a crystallizer |
| CN102686335A (en) * | 2010-02-19 | 2012-09-19 | 科勃扎-德诺维斯基·维拉德默·伊维根杰维奇 | Method and apparatus for producing steel, and the continuous casting of steel |
| CN102686335B (en) * | 2010-02-19 | 2016-10-19 | 科勃扎-德诺维斯基·维拉德默·伊维根杰维奇 | The method and apparatus of the direct casting of steel |
| CN102896285A (en) * | 2011-07-29 | 2013-01-30 | 宝山钢铁股份有限公司 | Method and device for continuously casting thin strip |
| CN102896285B (en) * | 2011-07-29 | 2015-12-02 | 宝山钢铁股份有限公司 | A kind of thin strap continuous casting casting method and device |
| CN106001528A (en) * | 2016-07-13 | 2016-10-12 | 北京麦特尔科技有限公司 | Continuous casting tundish direct-current plasma heating device using a plurality of graphite hollow bars as electrodes |
| CN106001528B (en) * | 2016-07-13 | 2017-05-10 | 北京麦特尔科技有限公司 | Continuous casting tundish direct-current plasma heating device using a plurality of graphite hollow bars as electrodes |
| CN108339970A (en) * | 2017-01-23 | 2018-07-31 | 新日铁住金工程技术株式会社 | Molten steel heating device and heating means |
| CN110871268A (en) * | 2018-09-04 | 2020-03-10 | 上海梅山钢铁股份有限公司 | Equipotential control device and method for plasma heating of continuous casting tundish |
| CN112170796A (en) * | 2019-07-01 | 2021-01-05 | 上海梅山钢铁股份有限公司 | Control method of direct current plasma continuous casting tundish heating arc |
| CN111215613A (en) * | 2020-01-13 | 2020-06-02 | 北京科技大学 | Tundish and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |