CN102806343A - Transverse lateral channel continuous casting tundish induction heating device - Google Patents
Transverse lateral channel continuous casting tundish induction heating device Download PDFInfo
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- CN102806343A CN102806343A CN2012103106456A CN201210310645A CN102806343A CN 102806343 A CN102806343 A CN 102806343A CN 2012103106456 A CN2012103106456 A CN 2012103106456A CN 201210310645 A CN201210310645 A CN 201210310645A CN 102806343 A CN102806343 A CN 102806343A
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Abstract
The invention relates to a channel type induction heating device which is suitable for transforming the conventional continuous casting tundish. The channel type induction heating device is characterized in that a heater partition wall is arranged on one side of an inlet molten pool in the transverse directions, namely the transverse directions which are perpendicular to the horizontal directions and height direction of blanks discharged out of a continuous casting machine respectively; the inlet molten pool, the heater partition wall and a transitional molten pool are connected sequentially to form a row; an outlet molten pool is partitioned with the inlet molten pool and the transitional molten pool by a retaining wall; at least two heating channels are embedded into the heater partition wall; molten steel flows into the transitional molten pool from the inlet molten pool by the heating channels, and flows into the outlet molten pool from a diversion hole in the retaining wall; and a vertical iron core leg of a coil is sleeved in a closed iron core and penetrates through a protective sleeve on the middle part of the heater partition wall. By the heating device, the molten steel in a tundish can be heated effectively, non-metallic inclusions in the heating channels are removed, and heat loss in the process of pouring a steel ladle can be compensated, so that low-degree of superheat stable pouring is realized, the quality of the cast blanks is improved, and the capacity is improved.
Description
Affiliated technical field
The invention belongs to continuous casting tundish induction heating technique field, relate to a kind of suitable existing conventional tundish steric requirements and carry out the channel-type induction heating apparatus of technological transformation having tundish now.
Background technology
In continuous casting production process, use the molten steel in the external heat means heating continuous casting tundish, can compensate the heat loss in the steel ladle pouring process, and liquid steel temperature is stable in the control tundish.And the molten steel temperature in tundish stable and controllable, thereby be to realize low overheat cast an improvement slab quality and an essential condition that improves production capacity.
Up to the present, the tundish heating technique of having developed in the continuous casting field mainly contains heated by plasma technology and channel-type induction heating technique.The heated by plasma technology is stopped using by domestic how tame iron and steel enterprise mainly due to reasons such as its handling difference and operating cost height.
Tundish channel-type induction heating technique passes through the molten steel in the heated tundish in molten steel based on electromagnetic induction principle.With the heated by plasma compared with techniques, have reliable stable and efficiency of heating surface advantages of higher.In the channel-type induction heating apparatus, steel flow is heated when passage, also removes the non-metallic inclusion in the molten steel through the magnetic fluid principle simultaneously.
The characteristic of present existing tundish channel-type induction heating apparatus is: (patent publication No. CN1115377) formed by inlet molten bath, two parallel heat tunnels and outlet molten bath three parts in the molten steel flow zone, and wherein heat tunnel is positioned at throwing horizontal direction one side in the molten bath that enters the mouth; After molten steel gets into the inlet molten bath through long nozzle, through flowing into the outlet molten bath behind the heat tunnel.The stainless steel protective jacket that is used to induction heater is installed is between two parallel heat tunnels, and induction heater has a side of coil in protective jacket.In order to make the molten steel heating in the passage abundant; Heat tunnel must have certain length; And induction heating apparatus itself also need take certain space, and therefore the designing requirement of existing tundish channel-type induction heating apparatus has enough spaces to place heat tunnel and induction heating apparatus between inlet molten bath and outlet molten bath.
The conventional tundish that current most steel mill uses is not installed induction heating apparatus; Usually just separate between tundish inlet molten bath and the outlet molten bath with the water conservancy diversion barricade; Long nozzle and the distance between the submersed nozzle along the throwing horizontal direction are very limited, do not have enough spaces to place heat tunnel.If these tundish are carried out technological transformation and are adopted induction heating technique; Do not change simultaneously the basic layout of original long nozzle and submersed nozzle again; Existing tundish channel-type induction heating apparatus can't be employed, must new molten bath and the channel layout scheme of design.
Summary of the invention
For existing conventional continuous casting tundish is carried out technological transformation and used induction heating technique, simultaneous adaptation has the space field condition of tundish now, and the present invention provides a kind of cross side passage continuous casting tundish induction heating apparatus.This device makes full use of the space of inlet molten bath transverse side and places the purpose that sufficiently long heat tunnel is realized the high efficiency heating and reached effective removal non-metallic inclusion in heat tunnel; Also have compact conformation simultaneously and save the advantage of manufacturing cost, be applicable to technological transformation existing continuous casting tundish.
A kind of cross side passage continuous casting tundish induction heating apparatus, said heater having heaters and tundish; Said tundish is made up of inlet molten bath 1, heater partition wall 2, transition molten bath 3 and outlet molten bath 4; It is characterized in that: heater partition wall 2 is in horizontal 5 one sides in inlet molten bath 1, and horizontal here 5 are meant and conticaster ejection horizontal direction 6 and the vertical respectively direction of short transverse; Inlet molten bath 1, heater partition wall 2 and transition molten bath 3 orders are joined and are linked to be a row; Be embedded with at least two heat tunnels 7 in the bottom of heater partition wall 2 and be communicated with inlet molten bath 1 and transition molten bath 3; Outlet molten bath 4 separates with transition molten bath 3 through barricade 8 and inlet molten bath 1, is positioned at ejection horizontal direction 6 one sides; Have at least one pod apertures 9 on the said barricade 8, be communicated with transition molten bath 3 and outlet molten bath 4; Heater is equipped with in position at heater partition wall 2.
As shown in Figure 1 horizontal 5 can have both direction, and heat tunnel 7 and transition molten bath 3 can be positioned at the horizontal any side in inlet molten bath 1; Molten steel gets into inlet molten bath 1 by long nozzle 10, flows into transition molten bath 3 through heat tunnel 7, then gets into outlet molten bath 4 through the pod apertures in the barricade 89, in outlet molten bath 4, gets into continuous cast mold through submersed nozzle 11.
As depicted in figs. 1 and 2, it is characterized in that: the heater that this heater is equipped with comprises the protective jacket 12 of iron core-closed a, primary coil 14 and a up/down perforation, and wherein iron core-closed upper core 15 by inverted U is formed with bar shaped lower core 16; The protective jacket 12 of up/down perforation is installed in the middle part of heater partition wall 2 and between two heat tunnels 7; A vertical iron core leg that is with coil 14 of inverted U upper core 15 passes in said protective jacket 12; The side opposite that the vertical iron core leg of another is positioned at heater partition wall 2 with ejection horizontal direction 6.Space between protective jacket 12 inner surfaces and coil 14 and the iron core 15 is air-cooled passage 13.
The operation principle of this cross side passage continuous casting tundish induction heating apparatus is: a closed molten steel galvanic circle is formed in inlet molten bath 1, heat tunnel 7 and transition molten bath 3, supplies the heating current circulation; Said galvanic circle is located on said iron core-closed, and primary coil 14 can induce electric current in closed molten steel galvanic circle through iron core-closed.
Beneficial effect of the present invention is following:
1) this tundish induction heating apparatus adapts to the steric requirements of existing conventional tundish; Therefore can be used for existing continuous casting tundish is carried out technological transformation and used induction heating technique; Realize the stable cast of low overheat, promote product quality and the purpose that improves production capacity thereby reach.
2) in the structural design of this tundish induction heating apparatus, heat tunnel is long, and efficiency of heating surface height also reaches the metallurgical effect of in heat tunnel, removing non-metallic inclusion.
3) this tundish induction heating apparatus is simple in structure, compact, and it is little to take up room, the saving technique improvement expenses.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further.
Fig. 1 is a structural front view of the present invention.
Fig. 2 is A-A ' the face insight structural map of Fig. 1.
The explanation of mark: 1-inlet molten bath among Fig. 1,2-heater partition wall, 3-transition molten bath, 4-exports the molten bath, and 5-is horizontal; 6-ejection horizontal direction, 7-heat tunnel, 8-barricade, 9-pod apertures, 10-long nozzle; The 11-submersed nozzle, 12-protective jacket, the air-cooled passage of 13-, 14-coil, 15-upper core.
The explanation of mark among Fig. 2: 16-lower core, 17-top protection steel plate.
The specific embodiment
As shown in Figure 1, in the present embodiment, cross side passage continuous casting tundish induction heating apparatus having heaters and tundish; Tundish is made up of inlet molten bath 1, heater partition wall 2, transition molten bath 3 and outlet molten bath 4.It is characterized in that: heater partition wall 2 is in horizontal 5 one sides in inlet molten bath 1; Here horizontal 5 are meant and conticaster ejection horizontal direction 6 and the vertical respectively direction of short transverse; Inlet molten bath 1, heater partition wall 2 and transition molten bath 3 orders are joined and are linked to be a row; As shown in Figure 1 horizontal 5 have both direction, and in the present embodiment, if stand in the face of ejection horizontal direction 6, heater partition wall 2 and the transition molten bath of seeing 3 is positioned at horizontal left side, inlet molten bath 1; Be embedded with two heat tunnels that are parallel to each other 7 in the bottom of heater partition wall 2 and be communicated with inlet molten bath 1 and transition molten bath 3.
As shown in Figure 1, outlet molten bath 4 separates with transition molten bath 3 through barricade 8 and inlet molten bath 1, and is positioned at a side of ejection horizontal direction 6; Have a pod apertures 9 in the bottom of barricade 8 and be communicated with transition molten bath 3 and outlet molten bath 4; Heater is equipped with in position at heater partition wall 2.
Molten steel gets into inlet molten bath 1 by long nozzle 10, flows into transition molten bath 3 through heat tunnel 7, then gets into outlet molten bath 4 through the pod apertures in the barricade 89, in outlet molten bath 4, gets into continuous cast mold through submersed nozzle 11.
As depicted in figs. 1 and 2, the heater that this heater is equipped with comprises the protective jacket 12 of iron core-closed a, primary coil 14 and a up/down perforation; Wherein iron core-closed upper core 15 by inverted U is formed with bar shaped lower core 16; The protective jacket 12 of up/down perforation is installed in the middle part of heater partition wall 2 and between two heat tunnels 7; A vertical iron core leg that is with coil 14 of inverted U upper core 15 passes in said protective jacket 12; The side opposite that the vertical iron core leg of another is positioned at heater partition wall 2 with ejection horizontal direction 6.Space between protective jacket 12 inner surfaces and coil 14 and the iron core 15 is air-cooled passage 13.
As shown in Figure 2, at the upper surface of heater partition wall 10 protection steel plate 17 in top is housed.
The operation principle of this cross side passage continuous casting tundish induction heating apparatus is: a closed molten steel galvanic circle is formed in inlet molten bath 1, heat tunnel 7 and transition molten bath 3, supplies the heating current circulation; Said galvanic circle is located on said iron core-closed, and primary coil 14 can induce electric current in closed molten steel galvanic circle through iron core-closed.
Claims (4)
1. cross side passage continuous casting tundish induction heating apparatus, said heater having heaters and tundish; Said tundish is made up of inlet molten bath, heater partition wall, transition molten bath and outlet molten bath, it is characterized in that: the heater partition wall laterally is meant and conticaster ejection horizontal direction and the vertical respectively direction of short transverse in a horizontal side in inlet molten bath here; Inlet molten bath, heater partition wall and transition molten bath join in proper order and are linked to be a row; Be embedded with at least two heat tunnels in the bottom of heater partition wall and be communicated with inlet molten bath and transition molten bath; The outlet molten bath separates through barricade and inlet molten bath and transition molten bath, is positioned at ejection horizontal direction one side in inlet molten bath; Have at least one pod apertures on the said barricade and be communicated with transition molten bath and outlet molten bath; Heater is equipped with in position at the heater partition wall.
2. cross side passage continuous casting tundish induction heating apparatus as claimed in claim 1 is characterized in that: heat tunnel and transition molten bath can be positioned at the horizontal any side in inlet molten bath; Molten steel gets into the inlet molten bath by long nozzle, flows into the transition molten bath through heat tunnel, then gets into the outlet molten bath through the pod apertures in the barricade, in the outlet molten bath, gets into continuous cast mold through submersed nozzle.
3. cross side passage continuous casting tundish induction heating apparatus as claimed in claim 1; It is characterized in that: the heater that this heater is equipped with comprises the protective jacket of iron core-closed a, primary coil and a up/down perforation, and wherein iron core-closed upper core and bar shaped lower core by inverted U formed; The protective jacket of up/down perforation is installed in the middle part of heater partition wall and between two heat tunnels; A vertical iron core leg that is with coil of inverted U upper core passes in said protective jacket; The vertical iron core leg of another is positioned at a side opposite with the ejection horizontal direction of heater partition wall.Space between protective jacket inner surface and coil and the iron core is air-cooled passage.
4. cross side passage continuous casting tundish induction heating apparatus as claimed in claim 1 is characterized in that: a closed molten steel galvanic circle is formed in inlet molten bath, heat tunnel and transition molten bath, supplies the heating current circulation; Said galvanic circle is located on said iron core-closed, and primary coil can induce electric current in closed molten steel galvanic circle through iron core-closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103106456A CN102806343A (en) | 2012-08-29 | 2012-08-29 | Transverse lateral channel continuous casting tundish induction heating device |
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| CN2012103106456A CN102806343A (en) | 2012-08-29 | 2012-08-29 | Transverse lateral channel continuous casting tundish induction heating device |
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| CN102806343A true CN102806343A (en) | 2012-12-05 |
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| CN2012103106456A Pending CN102806343A (en) | 2012-08-29 | 2012-08-29 | Transverse lateral channel continuous casting tundish induction heating device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028737A (en) * | 2014-06-04 | 2014-09-10 | 东北大学 | Novel channel for tundish adopting channel induction heating |
| CN104525928A (en) * | 2015-01-22 | 2015-04-22 | 无锡巨力重工股份有限公司 | Double-nozzle external heating type intermediate tank |
| CN108356254A (en) * | 2018-02-13 | 2018-08-03 | 东北大学 | A kind of abnormity Multi-strand Continuous Casting sensing heating tundish device |
| CN109128122A (en) * | 2018-10-22 | 2019-01-04 | 东北大学 | A kind of channel-type induction heating ladle device and heating means |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185556A (en) * | 1983-04-05 | 1984-10-22 | Nippon Steel Corp | Heater for molten steel in tundish |
| JPH0494089A (en) * | 1990-08-10 | 1992-03-26 | Fuji Electric Co Ltd | Induction heating apparatus of tandish |
| CN201529769U (en) * | 2009-11-15 | 2010-07-21 | 江阴亚赛冶金设备修造有限公司 | Tundish channel type induction heater |
| CN201922007U (en) * | 2011-01-05 | 2011-08-10 | 上海东震冶金工程技术有限公司 | Tundish electromagnetic induction device arranged at side edges of induction coil and passageways |
| CN201976278U (en) * | 2011-01-05 | 2011-09-14 | 上海东震冶金工程技术有限公司 | Tundish electromagnetic induction device with horizontally placed induction passages |
| CN202052920U (en) * | 2011-04-08 | 2011-11-30 | 上海东震冶金工程技术有限公司 | Electromagnetic induction heating apparatus for large capacity tundish molten steel |
| CN202779660U (en) * | 2012-08-29 | 2013-03-13 | 北京钢流电磁技术有限公司 | Transverse side passage induction heating apparatus for continuous casting tundish |
-
2012
- 2012-08-29 CN CN2012103106456A patent/CN102806343A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185556A (en) * | 1983-04-05 | 1984-10-22 | Nippon Steel Corp | Heater for molten steel in tundish |
| JPH0494089A (en) * | 1990-08-10 | 1992-03-26 | Fuji Electric Co Ltd | Induction heating apparatus of tandish |
| CN201529769U (en) * | 2009-11-15 | 2010-07-21 | 江阴亚赛冶金设备修造有限公司 | Tundish channel type induction heater |
| CN201922007U (en) * | 2011-01-05 | 2011-08-10 | 上海东震冶金工程技术有限公司 | Tundish electromagnetic induction device arranged at side edges of induction coil and passageways |
| CN201976278U (en) * | 2011-01-05 | 2011-09-14 | 上海东震冶金工程技术有限公司 | Tundish electromagnetic induction device with horizontally placed induction passages |
| CN202052920U (en) * | 2011-04-08 | 2011-11-30 | 上海东震冶金工程技术有限公司 | Electromagnetic induction heating apparatus for large capacity tundish molten steel |
| CN202779660U (en) * | 2012-08-29 | 2013-03-13 | 北京钢流电磁技术有限公司 | Transverse side passage induction heating apparatus for continuous casting tundish |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028737A (en) * | 2014-06-04 | 2014-09-10 | 东北大学 | Novel channel for tundish adopting channel induction heating |
| CN104525928A (en) * | 2015-01-22 | 2015-04-22 | 无锡巨力重工股份有限公司 | Double-nozzle external heating type intermediate tank |
| CN108356254A (en) * | 2018-02-13 | 2018-08-03 | 东北大学 | A kind of abnormity Multi-strand Continuous Casting sensing heating tundish device |
| CN109128122A (en) * | 2018-10-22 | 2019-01-04 | 东北大学 | A kind of channel-type induction heating ladle device and heating means |
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Application publication date: 20121205 |