CN201157898Y - Butterfly shape duct core induction heater - Google Patents
Butterfly shape duct core induction heater Download PDFInfo
- Publication number
- CN201157898Y CN201157898Y CNU2008200657738U CN200820065773U CN201157898Y CN 201157898 Y CN201157898 Y CN 201157898Y CN U2008200657738 U CNU2008200657738 U CN U2008200657738U CN 200820065773 U CN200820065773 U CN 200820065773U CN 201157898 Y CN201157898 Y CN 201157898Y
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- iron core
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- pans
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Abstract
An induction heating device of a butterfly-shaped passage comprises a retaining wall (4), the butterfly-shaped passage (20), a Pi-shaped iron core (11), a double-coil (8), rectangular yoke iron (9), two square non-magnetic and non-bottom stainless steel protective sleeves (19), a water cooling system and an electric control system. The retaining wall (4) is positioned in a tundish (3); the butterfly-shaped passage (20) is installed in a box body (17) close to the bottom of the tundish (3); a middle main passage (12) communicates with the retaining wall (4); two lateral passages (13) communicate with the tundish (3); the protective sleeves (19) are fixed on the rectangular yoke iron (9); the double coil (8) is installed in the Pi-shaped iron core (11), then the Pi-shaped iron core (11) straddles the two square or round non-bottom protective sleeves (19), the upper part of the Pi-shaped iron core (11) is connected with a box cover (16), and the lower part thereof is connected with the rectangular yoke iron (9); the box cover (16) is connected with the box body (17) through bolts; the box body (17) is connected with the rectangular yoke iron (9); refractory materials (18) are filled in the gap in the box body; a D-shaped double rectangular shape cooling pipe (15) is installed on the Pi-shaped iron core (11) and the stainless steel protective sleeves (19) and communicates with a cooling water source; and the coil (8) is connected with the electric control system. The induction heating device provides the external heat source for the tundish so as to compensate the heat consumption during the continuous casting process, and realize low-degree of superheat constant-temperature casting during the continuous casting process, thereby improving the surface and the inside quality of a continuous casting blank.
Description
Technical field
The utility model relates to the butterfly shape duct core induction heater that the particularly existing pans of a kind of continuous casting tundish increase dress.
Background technology
The heater of existing continuous casting tundish is made up of following member: it is by two parallel straight line refractory material passage, square shape iron core and unicoils, the heater that protective jacket of the square no end, air cooling system are formed; Each member connects in the following manner or makes up: whole device is installed in the centre at pans and steel ladle sprue gate; protective sleeve of the square no end is installed in the middle part of the back of pans; the left and right sides at protective sleeve is buried two linear refractory material passages underground near the bottom of pans; the iron core of heater is across protective sleeve and pans partial shell; the side that coil is arranged is in protective sleeve, and a side of no coil is outside pans.
Its course of work is: after the coil of heater is fed single-phase alternating current, in the square shape iron core of closure, excite the magnetic flux of alternation, the magnetic flux of alternation just with the molten steel of iron core linkage and pans housing in produce induced-current, this induced-current Joule heat of in passage, inducting in the molten steel, thereby the heating molten steel also also produces Joule heat simultaneously in the pans housing.
It has following deficiency: heating power is limited, device structure is huge, is unfavorable for applying.Its reason is: because the structural constraint heat tunnel is shorter; Because part pans housing and iron core linkage need be made insulation processing; Because unicoil has limited the increase of heating power; Owing to adopted the air cooling, not only cooling effectiveness is low but also equipment is also huge; Because whole device is installed in the centre at pans and steel ladle sprue gate, also causes overall structure huge.
Summary of the invention
The purpose of this utility model is to overcome that the heat tunnel of above-mentioned prior art is short, heating power is limited, the pans housing is easy to electric insulation; Air cooling is equipment and the huge deficiency of overall structure but, a kind of butterfly shape duct core induction heater is provided, it has that heat tunnel is long, heating power big, water cooling efficient height, heater volume are little, suitable pans are the technological transformation of existing pans particularly, this device energy integral disassembly, assembly, easy to maintenance.
The technical solution of the utility model is: a kind of butterfly shape duct core induction heater; it is characterized in that: it also comprises dish-shaped passage 20, ∏ shape iron core 11, twin coil 8, rectangle yoke 9, two the non-magnetic stainless steel protection covers 19 in the square or circular no end, barricade 4, water cooling system and electric-control systems, and the annexation and the relative position of above-mentioned member are:
Barricade 4 is positioned at pans 3; Butterfly passage 20 is installed in the bottom of close pans 3 in the casing 17, and main channel 12 communicates with barricade 4 in the middle of it, and two wing passages 13 communicate with pans 3; Two non-magnetic stainless steel protective jackets of the square no end 19 are fixed on the rectangle yoke 9; The ∏ shape iron core 11 that twin coil 8 is housed straddles in two protective jackets of the square no end 19, and its top is connected with case lid 16, and its underpart is connected with rectangle yoke 9; Case lid 16 is connected with casing 17, and casing 17 is connected with rectangle yoke 9, casing gap filling fire resisting material 18; The back-shaped cooling tube 15 of D shape is installed in respectively on ∏ shape iron core 11 and the stainless steel protection cover 19, and is communicated with cooling water source; Coil 8 is connected with electric-control system.
With upper member all is to be contained in the casing 17 except that cooling water source and electric-control system; Casing 17 is contained in the back of the ladle shelves wall 4 of pans 3.
Aforesaid butterfly shape duct core induction heater is characterized in that: protective jacket 19 is formed by connecting by two spill bodies, separates with electrically insulating material at its seam crossing; Arrange the back-shaped cooling tube 15 of D shape thereon.Protective jacket of the square no end 19 both had been used to protect heater, was used for the part of pans tank body again.
Aforesaid butterfly shape duct core induction heater is characterized in that: coil 8 is by the copper pipe coiling, and directly logical high-quality deionized water cools off in the pipe; In the middle of ∏ shape iron core 11 laminate patches, be packed with some copper coins, outwards conduct heat to strengthen core interior.
Beneficial effect: this device provides external heat source for pans, and the thermal losses in the compensation casting process realizes the low superheat-degree constant-temperature casting of casting process, improves continuous casting billet surface and internal soundness whereby.It has that heat tunnel is long, heating power big, water cooling efficient height, heater volume are little, and suitable pans are the technological transformation of existing pans particularly, and this device can integral disassembly, assembly, and is easy to maintenance.
Description of drawings
Fig. 1 is butterfly heater and pans, barricade connected mode and the installation site of the utility model embodiment.
Fig. 2 is the schematic diagram of dish-shaped heater 1 among Fig. 1.
Fig. 3 is a molten steel induced-current schematic diagram in the dish-shaped heater 1.
Fig. 4 is a MOLTEN STEEL FLOW schematic diagram in the dish-shaped heater 1.
Fig. 5 is 1/4 section of butterfly type heater 1, has represented the internal structure of the utility model embodiment.
Fig. 6 is the schematic diagram of the butterfly passage of induction heating apparatus.
The specific embodiment
The explanation of mark among Fig. 1: 1-butterfly heater, the position that is connected of 2-butterfly heater and pans, 3-pans (schematic diagram), 4-barricade.
The explanation of mark among Fig. 2: 5-flow direction, 6-induction coil principal current, 7-power supply, 8-coil, 9-yoke, the inductive current direction in the 10-molten steel, 11-∏ shape iron core.
Main channel in the middle of the explanation of mark: the 12-among Fig. 3, the 13-wing passage.
The explanation of mark among Fig. 4: 14-molten steel.
The back-shaped cooling tube of the explanation of mark: 15-among Fig. 5,16-case lid, 17-casing, 18-refractory material, 19-protective jacket, 20-dish passage.
The explanation of mark among Fig. 6: the position of 21-ladle long nozzle correspondence.
The utility model is described in more detail below in conjunction with drawings and Examples.
The butterfly shape duct core induction heater of the utility model embodiment; it is characterized in that: it comprises butterfly passage 20, ∏ shape iron core 11, twin coil 8, rectangle yoke 9, two non-magnetic stainless steel protection covers 19 in the square no end; also have barricade 4 and pans 3 (schematic diagram), water cooling system and electric-control system, the annexation and the relative position of above-mentioned member are:
Barricade 4 is positioned at pans 3; Butterfly passage 20 is installed in the bottom of close pans 3 in the casing 17, and main channel 12 communicates with barricade 4 in the middle of it, and two wing passages 13 communicate with pans 3; Two non-magnetic stainless steel protective jackets of the square no end 19 are fixed on the rectangle yoke 9; The ∏ shape iron core 11 that twin coil 8 is housed straddles in two square protective jackets 19, and its top is connected with casing 17, and its underpart is connected with rectangle yoke 9, casing gap filling fire resisting material 18; The back-shaped cooling tube 15 of D shape is installed in respectively on ∏ shape iron core 11 and the stainless steel protection cover 19 (seeing Fig. 5 for details), and is communicated with cooling water source; Coil 8 is connected with electric-control system.
With upper member all is to be contained in the casing 17 except that cooling water source and electric-control system, and casing 17 is contained in the back (see figure 1) of the barricade 4 of pans 3.
In the present embodiment, clearly to have manifested it be an independent device to dish-shaped heater 1 among Fig. 1, and respectively there is row's bolt hole the both sides of it and pans 3 faying faces, with bolt dish-shaped heater 1 are linked together with pans 3, type of attachment is simple, installs and removes, safeguards all very convenient.Sequence number 4 has been represented the position of shelves walls 4 among the figure, it is that this installs an indispensable part, cast type by refractory material, place in the pans 3, be built into one with it, the molten steel of ladle just injects wherein, flows into the middle main channel 12 of dish-shaped passage 20 again, is diverted to wing passage 13 then and flows in the pans 3.This device not only is used in the pans heating of new conticaster, and characteristics are suitable for the transformation of existing conticaster pans heating.
Fig. 2 is the schematic diagram of dish-shaped heater 1 among Fig. 1, and the similar single-phase transformer of its principle excites the coil 8 of magnetic flux to be called the primary circuit, is called secondary circuit with the molten steel 14 that flows in dish-shaped passage 20 of ∏ shape iron core 11 linkage.Both are by electromagnetic induction principle, convert the electric energy in the primary circuit in the secondary circuit heat energy.Inductive current direction is seen Fig. 3 in the molten steel 14, and the MOLTEN STEEL FLOW direction is seen Fig. 4, by Fig. 3 and Fig. 4 as seen, and both direction unanimities.Dish channel-type heating technique has the advantage of runner length, homogeneous heating, efficient height (85%～90%).
Fig. 5 embodies the internal structure of this device, and it is divided into three parts.
First comprises:
∏ shape iron core 11---it is by silicon steel sheet and some copper radiating ribs system repeatedly, and being clipped in the middle of two steel plates links together with bolt constitutes.
Back-shaped cooling tube 15---it is to bend shaping by D tee section stainless steel tube, but water flowing cooling in the pipe.
Second one comprises:
The 3rd one comprises:
Yoke 11---it is to link together with bolt in the middle of being clipped in two rectangle steel plates by rectangle silicon steel sheet and rectangular copper fin, and the Connection Block protection is arranged all around.
It is easy to maintenance in order to install and remove that device is divided into three parts.Second portion and third part have connected with bolt, the ∏ shape iron core 11 of first are aligned the stainless steel protective jacket 19 in the second portion again, fall to put in place, and case lid 16 connects with casing 17 usefulness bolts.Each maintenance and repair can separately be carried out this three part.
Fig. 6 schematic diagram can let us be better understood the structure and the molten steel flow direction of dish-shaped passage 20.Its shape is intended like butterfly, molten steel is injected in the barricade 4 from ladle and (intends the head like butterfly), molten steel enters the middle main channel 12 (intending the body like butterfly) of dish-shaped passage 20, and the wing passage 13 (intending two wings like butterfly) through both sides flows in the pans 3.
Butterfly shape duct core induction heater of the present utility model is installed in the rear portion of pans, does not change the basic configuration of pans basically, is particularly suitable for the technological transformation of existing pans.
Claims (3)
1, a kind of butterfly shape duct core induction heater; it is characterized in that: it comprises dish-shaped passage (20), ∏ shape iron core (11), twin coil (8), rectangle yoke (9), two non-magnetic stainless steel protection covers of the square or circular no end (19), barricade (4), pans (3), water cooling system and electric-control system, and the annexation and the relative position of above-mentioned member are:
Barricade (4) is positioned at pans (3); Butterfly passage (20) is installed in the bottom of close pans (3) in the casing (17), and main channel (12) communicate with barricade (4) in the middle of it, and two wing passages (13) communicate with pans (3); Two non-magnetic stainless steel protective jackets of the square or circular no end (19) are fixed on the rectangle yoke (9); The ∏ shape iron core (11) that twin coil (8) is housed straddles in two square protective jackets of the no end (19), and its top is connected with case lid (16), and its underpart is connected with rectangle yoke (9); Case lid (16) is connected with bolt with casing (17), and casing (17) is connected with rectangle yoke (9), casing gap filling fire resisting material (18); The back-shaped cooling tube of D shape (15) is installed in respectively on ∏ shape iron core (11) and the stainless steel protection cover (19), and is communicated with cooling water source; Coil (8) is connected with electric-control system.
2, butterfly shape duct core induction heater as claimed in claim 1 is characterized in that: protective jacket (19) is formed by connecting by two spill bodies, separates with electrically insulating material at its seam crossing; Arrange the back-shaped cooling tube of D shape (15) thereon.
3, butterfly shape duct core induction heater as claimed in claim 1 or 2 is characterized in that: coil (8) is by the copper pipe coiling, and directly logical high-quality deionized water cools off in the pipe; In the middle of ∏ shape iron core (11) laminate patch, be packed with some copper coins, outwards conduct heat to strengthen ∏ shape core interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200657738U CN201157898Y (en) | 2008-02-28 | 2008-02-28 | Butterfly shape duct core induction heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200657738U CN201157898Y (en) | 2008-02-28 | 2008-02-28 | Butterfly shape duct core induction heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201157898Y true CN201157898Y (en) | 2008-12-03 |
Family
ID=40108487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200657738U Expired - Lifetime CN201157898Y (en) | 2008-02-28 | 2008-02-28 | Butterfly shape duct core induction heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201157898Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049505A (en) * | 2010-12-31 | 2011-05-11 | 无锡巨力重工机械有限公司 | Split insulated tundish structure |
| CN104084573A (en) * | 2014-07-29 | 2014-10-08 | 湖南中科电气股份有限公司 | Induction heating and refining device with tundish and channels shaped like Arabic number eight |
-
2008
- 2008-02-28 CN CNU2008200657738U patent/CN201157898Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049505A (en) * | 2010-12-31 | 2011-05-11 | 无锡巨力重工机械有限公司 | Split insulated tundish structure |
| CN102049505B (en) * | 2010-12-31 | 2012-11-28 | 无锡巨力重工股份有限公司 | Split insulated tundish structure |
| CN104084573A (en) * | 2014-07-29 | 2014-10-08 | 湖南中科电气股份有限公司 | Induction heating and refining device with tundish and channels shaped like Arabic number eight |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081203 Effective date of abandoning: 20080228 |