CN201543790U - On-line heating device of strip casting side dams - Google Patents
On-line heating device of strip casting side dams Download PDFInfo
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- CN201543790U CN201543790U CN2009200756475U CN200920075647U CN201543790U CN 201543790 U CN201543790 U CN 201543790U CN 2009200756475 U CN2009200756475 U CN 2009200756475U CN 200920075647 U CN200920075647 U CN 200920075647U CN 201543790 U CN201543790 U CN 201543790U
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- seal board
- side seal
- inductor
- side dams
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Abstract
The utility model relates to an on-line heating device of strip casting side dams, wherein the side dams are arranged on both sides of casting rollers and the device comprises side dam supports, tight supporting devices, side dams and electromagnetic induction coils, wherein the side dam supports are located on the side surfaces of the casting rollers; the tight supporting devices tightly support the side dams to cling to the side surfaces of the casting rollers; the side dams are arranged on the side dam supports; the parent materials of the side dams are ceramic flame-proof materials containing boron nitride or alumina carbon materials; a plurality of inductors are arranged in the side dams; the inductors are made of graphite materials; the electromagnetic induction coils are arranged at the outer sides of the side dams and correspond to the positions of the inductors in the side dams. The utility model reduces the phenomena of molten steel coagulation of the contact areas of the side dams, the casting rollers and the molten steel to the highest limit through heating the side dams, improves the edge quality of cast strips and obtains cast strip products with higher quality. The utility model has small technical difficulty, is easy to realize and has small influence on the surrounding environment.
Description
Affiliated field
The utility model belongs to continuous casting technology, the online heater of particularly a kind of thin-strip casting side sealing plate.
Background technology
A kind of advanced person's of twin-roll thin strip continuous casting technology short flow process metallurgical technology, directly with pouring molten steel in the molten bath that a casting roller that relatively rotates by two and can cool off fast and side seal board surround, the peripheral surface that molten steel is rotated at the casting roller is cooled and solidifies, and then form solidified shell and gradually growth be pressed together at minimum place, two casting roll gap cracks then, form thick metal thin strip at band outlet at last, band is sent into by pinch roll via the guide plate guiding and is rolled into strip in the milling train, drive through spray cooling device by rollgang then and cool off, send into crimping machine at last and curl.
Side seal board is one of key equipment of thin strap continuous casting industrialization, and the casting roller of it and two rotations is formed the molten bath, avoids molten steel excessive.For cast for a long time and consider that the bad working environments of its operating position, the refractory material of making side seal board need that relatively good, the anti-molten steel wellability of lubricity is poor, high rigidity, high-melting-point and thermal conductivity be relatively good.
Because the thermal conductivity of side seal board is lower than the thermal conductivity of casting roller, so flow under the uniform prerequisite at cloth, the molten steel heat flow density at side seal board place is bound to than the height at chill roll middle part, this situation causes the side seal board near surface cold steel that condenses easily, causes problems such as limit portion tape thickness inequality, limit portion tear, bleed-out to occur.If to the side seal board heating, improve its surface temperature, then molten steel temperature drop herein can be suppressed accordingly, helps improving the Cast Strip quality of edges.
In order to make continuous casting production continuous, improve casting strip quality, the side seal board heating is a proper method.
The method of side seal board heating at present is a lot, as Japan Patent JP11254096 mentioned will preheating and etc. adopt the method for eddy-current heating side seal board when to be used, mentioning especially before beginning to cast will be with the heating intensity heated side shrouding that is higher than stabilization sub stage 1.2-2.5 times.
Mention the directly method of galvanization heating on side seal board among the Japan Patent JP03035851A, effectively simple, but the danger that operates is difficult to control.
Should be mentioned that at the side seal board rear portion in the European patent EP 0800880 to be furnished with the eddy-current heating body, motlten metal that can heated side shrouding money portion, its effect is consistent with this patent with purpose, and the method for the described execution of asking is more direct.
Mention a kind of method of using the resistance wire heating among the Chinese patent CN2346526Y, resistance wire contacts with side seal board side seal board is heated up in the course of the work, avoid the cold steel of " triple point " area bonded, this method implements simply, but effect is undesirable, because resistance wire is fragile and the efficiency of heating surface is not high.The method of mentioning among the Japan Patent JP2000237847 is the same substantially with a last patent.
French Patent (FRP) FR2647697A1 adopts stove direct-on-line heated side shrouding, and complex structure implements difficult, and accident treatment is pretty troublesome, and practicality is not very strong.
Mention among the Japan Patent JP3207555 getting at the side seal board rear portion and have groove on the backboard and prevent side seal board heat absorption back distortion, the position of groove faces the back of side seal board in the centre of side seal board backboard.
Above-mentioned patent mainly contains heating of resistance wire direct-on-line and online preheating side seal board, is incubated the method for using of handling then.Newer side sealing method is an electromagnetic side sealing, studies show that electromagnetic side sealing also can produce a large amount of heat in the function that realizes side seal board, but this part heat has corresponding influence to the equipment of side seal board peripheries such as casting roller, and electromagnetic side sealing needs very big electric current and defeated, the transformation device high frequency alternating current with the molten steel weight that obtains the shutoff certain altitude, cost and operation at present is all cumbersome, so electromagnetic side sealing method is not also used widely.
Summary of the invention
The purpose of this utility model is the online heater of a kind of thin-strip casting side sealing plate of design, by side seal board is heated, reduce side seal board, casting roller, molten steel contact area to greatest extent and get the molten steel phenomenon of condensing, improve the Cast Strip quality of edges, obtain quality Cast Strip product preferably.Technical difficulty is little, is easy to realize, and also little to the influence of surrounding enviroment.
The technical solution of the utility model is,
The online heater of a kind of thin-strip casting side sealing plate is arranged at casting roller side; It comprises, the side seal board support is positioned at casting roller side; Holding device holds out against side seal board and is closely attached on casting roller side; Side seal board is arranged on the side seal board support, and the side seal board fertile material is the ceramic refractory of nitrogen boron or aluminium carbonaceous material, and side seal board inside is provided with some inductors, and inductor is that graphite material is made; Electromagnetic induction coil is arranged at the side seal board outside, and is corresponding with the inductor position in the side seal board.
Further, insulation layer between described side seal board and the side seal board support.
Again, the described side seal board rear portion that is furnished with inductor is processed with and the corresponding hollow out striped of inductor.
In addition, the length of the hollow out striped at side seal board described in the utility model rear portion is greater than inductor length.
The rear portion of described side seal board support is empty form corresponding to the Position Design of induction coil.
The layout height of described inductor in side seal board is greater than the maximum contact height of molten steel and side seal board.
Described inductor be shaped as cuboid, along the roll surface circumferential arrangement of chill roll in side seal board.
Described holding device comprises stretch oil cylinder, top-fastening rod, and top-fastening rod connects the side seal board support.
The thermal coefficient of expansion of electromagnetic induction body should be with the side seal board material identical or smaller, be processed with corresponding hollow out striped at the side seal board rear portion that is furnished with inductor, avoid because inductor and side seal board are heated the back to expand and cause the side seal board distortion, influence side seal board and cast the contact quality of roller.Striped length slightly is longer than inductor length.
Insulation layer between side seal board and side seal board support be used for preventing that the heat of side seal board runs off, and its material thermal insulation can prevent that also temperature rise is too high in the electromagnetic induction heating side seal board.
Major advantage of the present utility model is:
1. to the side seal board heating, improve its surface temperature, molten steel temperature drop herein can be suppressed accordingly, helps improving the Cast Strip quality of edges.
2. non-direct heating, the service life of having improved heating element heater; The heatable element material is cheap, is applicable to the specific applying working condition of thin strap continuous casting, and heating element heater is a ceramic material, can be with the whole heating of side seal board before online heating.
3. the shaped design of side seal board helps preventing the side seal board distortion of calandria in heating process, improves the service precision of side seal board.
Description of drawings
Fig. 1 is a side seal board operating position schematic diagram.
Fig. 2 is the schematic diagram of the utility model electromagnetism heated side shrouding device.
But Fig. 3 a is the utility model electromagnetism heated side shrouding cutaway view.
But Fig. 3 b is the side view of the utility model electromagnetism heated side shrouding.
Fig. 3 c is the side view of Fig. 3 b.
Fig. 4 a is that the utility model side seal board and support are laid and concerned schematic diagram.
Fig. 4 b is the B-B cutaway view of Fig. 4 a.
Fig. 4 c is that the C of Fig. 4 b is to schematic diagram.
The specific embodiment
Referring to Fig. 1～Fig. 4 c, the online heater of thin-strip casting side sealing plate of the present utility model is arranged at the side seal board of casting the roller side; It comprises, side seal board support 1 is positioned at casting roller 7a, 7b side; Holding device 2 comprises stretch oil cylinder 21, top-fastening rod 22, and top-fastening rod 22 connects side seal board support 1 and holds out against the side seal board support in casting roller side; Side seal board 3 is arranged on the side seal board support 1, and the side seal board fertile material is the ceramic refractory of nitrogen boron or aluminium carbonaceous material, and side seal board 3 inside are provided with some inductors 4, and inductor 4 is made for graphite material; Electromagnetic induction coil 5 is arranged at side seal board 3 outsides, and is corresponding with inductor 4 in the side seal board 3.Insulation layer 6 between described side seal board 3 and the side seal board support 1; Described side seal board 3 rear portions that are furnished with inductor are processed with and inductor 4 corresponding hollow out stripeds 31, and the length of this hollow out striped is greater than inductor 4 length; The rear portion of described side seal board support 1 is empty form 11 corresponding to the Position Design of induction coil.
The layout height of described inductor 4 in side seal board is greater than the maximum contact height of molten steel and side seal board; Inductor 4 is shaped as cuboid, along the roll surface circumferential arrangement of chill roll in side seal board.
Shape according to thin belt continuous casting molten pool, some inductors 4 of distribution in the side seal board 3, the inductor material is a graphite, adopts electromagnetic induction coil 5 heat induced bodies 4 to make the temperature of side seal board be higher than 1200 ℃, less than 1300 ℃, heated perimeter is the zone that molten steel 8 is full of in the molten bath.For the casting roller 7a that avoids contacting with side seal board 3, the limit portion of 7b--chill roll also are heated simultaneously, so inductor 4 is arranged in the spatial dimension of institute's holding molten steel between two chill rolls as far as possible, inductor 4 arranges that as illustration among Fig. 2 the eddy-current heating scope is slightly larger than the highest liquid level of molten steel; The layout height of inductor 4 in side seal board 3 is greater than the maximum contact height of molten steel and side seal board 3, and inductor also can be along the roll surface circumferential arrangement of chill roll; The thermal coefficient of expansion of electromagnetic induction body should be with the side seal board material identical or smaller, be processed with corresponding hollow out striped 31 at side seal board 3 rear portions that are furnished with inductor 4, avoid because inductor 4 and side seal board 3 are heated the back to expand and cause side seal board 3 distortion, influence side seal board 3 and cast the contact quality of roller end face.
The material of top-fastening rod 22 is copper or ceramic material, avoids being heated in the process of electromagnetic induction heating side seal board 3 high temperature herein.
Referring to Fig. 4 a～Fig. 4 c, the rear portion of side seal board support 1 is empty form 11 corresponding to the Position Design of induction coil, avoids side seal board support 1 also to be heated in the process of electromagnetic induction heating side seal board 3 herein.Insulation layer 6 between side seal board 3 and side seal board support 1 is used for preventing that the heat of side seal board 3 runs off, and its material is a ceramic material, and when electromagnetism heated side shrouding, its temperature rise is limited.
Claims (8)
1. the online heater of thin-strip casting side sealing plate is arranged at casting roller side; It is characterized in that, comprise,
The side seal board support is positioned at casting roller side;
Holding device holds out against side seal board and is adjacent to casting roller side;
Side seal board is arranged on the side seal board support, and the side seal board fertile material is the ceramic refractory of nitrogen boron or aluminium carbonaceous material, and side seal board inside is provided with some inductors, and inductor is that graphite material is made;
Electromagnetic induction coil is arranged at the side seal board outside, and is corresponding with inductor in the side seal board.
2. the online heater of thin-strip casting side sealing plate as claimed in claim 1 is characterized in that, insulation layer between described side seal board and the side seal board support.
3. the online heater of thin-strip casting side sealing plate as claimed in claim 1 or 2 is characterized in that, the described side seal board rear portion that is furnished with inductor is processed with and the corresponding hollow out striped of inductor.
4. the online heater of thin-strip casting side sealing plate as claimed in claim 3 is characterized in that the length of the hollow out striped at described side seal board rear portion is greater than inductor length.
5. the online heater of thin-strip casting side sealing plate as claimed in claim 1 or 2 is characterized in that, the rear portion of described side seal board support is empty form corresponding to the Position Design of induction coil.
6. the online heater of thin-strip casting side sealing plate as claimed in claim 1 is characterized in that, the layout height of described inductor in side seal board is greater than the maximum contact height of molten steel and side seal board.
7. the online heater of thin-strip casting side sealing plate as claimed in claim 1 is characterized in that, described inductor be shaped as cuboid, along the roll surface circumferential arrangement of chill roll in side seal board.
8. the online heater of thin-strip casting side sealing plate as claimed in claim 1 is characterized in that described holding device comprises stretch oil cylinder, top-fastening rod, and top-fastening rod connects the side seal board support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200756475U CN201543790U (en) | 2009-07-31 | 2009-07-31 | On-line heating device of strip casting side dams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200756475U CN201543790U (en) | 2009-07-31 | 2009-07-31 | On-line heating device of strip casting side dams |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201543790U true CN201543790U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200756475U Expired - Lifetime CN201543790U (en) | 2009-07-31 | 2009-07-31 | On-line heating device of strip casting side dams |
Country Status (1)
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| CN (1) | CN201543790U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550795A (en) * | 2015-01-07 | 2015-04-29 | 江苏沙钢集团有限公司 | Thin strip continuous casting device |
| CN104972081A (en) * | 2015-07-14 | 2015-10-14 | 燕山大学 | Method and device for preheating whole of strip casting flow distribution device and side sealing plate |
| CN106541092A (en) * | 2016-11-25 | 2017-03-29 | 江西理工大学 | A kind of twin-roll thin strip continuous casting side seal board and its using method |
| WO2018119552A1 (en) * | 2016-12-26 | 2018-07-05 | 宝山钢铁股份有限公司 | Mounting device for twin-roll thin-strip continuous-casting side sealing plate, and mounting method thereof |
| CN109954850A (en) * | 2018-06-08 | 2019-07-02 | 江苏沙钢集团有限公司 | Continuous replacement device and method for side sealing plate for thin-strip continuous casting |
| CN113441690A (en) * | 2020-03-26 | 2021-09-28 | 宝山钢铁股份有限公司 | Supporting device for side sealing plates between rollers of double-roller thin-strip continuous casting machine |
-
2009
- 2009-07-31 CN CN2009200756475U patent/CN201543790U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550795A (en) * | 2015-01-07 | 2015-04-29 | 江苏沙钢集团有限公司 | Thin strip continuous casting device |
| CN104972081A (en) * | 2015-07-14 | 2015-10-14 | 燕山大学 | Method and device for preheating whole of strip casting flow distribution device and side sealing plate |
| CN104972081B (en) * | 2015-07-14 | 2017-03-01 | 燕山大学 | A kind of pre-heating mean overall to thin-belt casting rolling current distribution device and side seal board and device |
| CN106541092A (en) * | 2016-11-25 | 2017-03-29 | 江西理工大学 | A kind of twin-roll thin strip continuous casting side seal board and its using method |
| WO2018119552A1 (en) * | 2016-12-26 | 2018-07-05 | 宝山钢铁股份有限公司 | Mounting device for twin-roll thin-strip continuous-casting side sealing plate, and mounting method thereof |
| CN110087800A (en) * | 2016-12-26 | 2019-08-02 | 宝山钢铁股份有限公司 | The mounting device and its installation method of twin-roll thin-strip casting side sealing plate |
| RU2726543C1 (en) * | 2016-12-26 | 2020-07-14 | Баошань Айрон Энд Стил Ко., Лтд. | Side wall partition retaining device for continuous casting of thin strip with two rolls and method of installation thereof |
| CN110087800B (en) * | 2016-12-26 | 2022-02-15 | 宝山钢铁股份有限公司 | Installation device and installation method of double-roller thin-strip continuous casting side sealing plate |
| CN109954850A (en) * | 2018-06-08 | 2019-07-02 | 江苏沙钢集团有限公司 | Continuous replacement device and method for side sealing plate for thin-strip continuous casting |
| CN113441690A (en) * | 2020-03-26 | 2021-09-28 | 宝山钢铁股份有限公司 | Supporting device for side sealing plates between rollers of double-roller thin-strip continuous casting machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |
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| CX01 | Expiry of patent term |