CN2623382Y - Metal liquid impurity cleaner - Google Patents
Metal liquid impurity cleaner Download PDFInfo
- Publication number
- CN2623382Y CN2623382Y CN 03230562 CN03230562U CN2623382Y CN 2623382 Y CN2623382 Y CN 2623382Y CN 03230562 CN03230562 CN 03230562 CN 03230562 U CN03230562 U CN 03230562U CN 2623382 Y CN2623382 Y CN 2623382Y
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- container
- metal liquid
- metal
- field trash
- magnetic stirrer
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Abstract
A metal liquid impurity cleaner comprises a body and an electromagnetic mixer; the body is divided into a first container and a second container by a separation wall, and a passage is arranged between the first container and the second container to communicates the first container and the second container; the electromagnetic mixer is arranged surround the outer end of the first container to impose the electromagnetic induction force in tangent direction on the metal liquid in the first container to make the metal liquid rotate horizontally, then the nonmetal impurities in the metal liquid migrate toward the middle part of the fused mass and gather into big ones, and then float to the surface of the steel liquid and are absorbed by the covering agent, finally, the rest is absorbed on the outer wall of an immersion discharge pipe and is discharged by the extraction of the discharge pipe; the purified metal liquid flows into the second container and finally flows into a crystallizer to be freezed into the solid metal. The utility model can essentially remove large-size nonmetal impurities such as deoxidization products which diameters are bigger than ten microns, slag and fire-resistant materials, greatly improves the purity of the metal liquid, and contributes to steadily produce the metal products of high quality, high additional value and low cost.
Description
Technical field
The utility model relates to steel-making continuous casting technology, particularly the clean technologies of metal liquid field trash.
Background technology
As everyone knows, non-metallic inclusion in the steel exists mutually with independent, they have destroyed the continuity of steel matrix, caused the inhomogeneities of structure of steel, and their geometry, chemical composition, physical factor etc. not only make the cold and hot working performance of steel and some physical and chemical index worsen, but also every serviceability of reduction steel, as fracture toughness, sheet moulding, surface smoothness, corrosion resistance, fatigue behaviour, welding performance and cutting ability etc.In addition, some field trash is as Al
2O
3Also can influence the casting performance of molten steel with CaS and rare earth oxide etc., as nozzle blocking.The quantity of nonmetallic inclusionsin steel, size and distribution thereof have a strong impact on steel performance, and those bulky grains＞10 μ m are mingled with especially.Open at continuous casting water, change before and after the ladle, during continuous casting unstable state casting such as casting ends, liquid level fluctuation of molten steel is big, it is frequent that pulling rate changes, the secondary oxidation of molten steel and roll up slag and seriously influence molten steel cleanliness.In continuous casting stable state casting cycle, non-metallic inclusion mainly is the field trash that ladle is brought in the molten steel.
The continuous casting tundish is the requisite metallurgical tank of modern steel mill, connects ladle on it, connects crystallizer down, and high-temperature metal liquid flows into crystallizer through tundish in the ladle, is solidified as qualified strand then.The tundish effect is to separate cast molten steel and ladle slag, buffering and stabilized steel flow velocity degree, reduce impact momentum that steel stream injects crystallizer and reach crystallizer initial solidification base shell is washed away; The temperature that the molten steel Rational flow can promote molten steel in the tundish is the come-up of even non-metallic inclusion all.Be mingled with in order to reduce, cleaning molten steel and improve the quality of steel, on tundish, many technology are arranged abroad now for the molten steel purifying application, as enlarge baffled in tundish, the tundish, partition wall and downflow weir, molten steel filter and tundish argon bottom-blowing etc., so that non-metallic inclusion come-up in the molten steel, cleaning molten steel.More than these technology reduced the content of steel inclusion to a certain extent, improved the cleanliness factor of molten steel, but on the degree of getting rid of field trash, all had limitation.
Summary of the invention
The purpose of this utility model is to design a metal liquid field trash cleaner, can remove the large scale non-metallic inclusion substantially, deoxidation products, slag and refractory material as bulky grain (＞10 μ m) are mingled with, flocculence field trash particularly, the degree of purity of molten metal be can improve widely, production high-quality stably, high added value and metal product cheaply helped.
For achieving the above object, technical solution of the present utility model is:
Metal liquid field trash cleaner comprises body, magnetic stirrer, and described body is divided into first container, second container by a divider wall, is provided with passage therebetween two containers are communicated with; Magnetic stirrer is located on outside first container distolateral;
Further, also be provided with the immersion discharge pipe, be arranged in first container, its upper end is connected with ladle.
Described magnetic stirrer is a travelling-wave electromagnetic field agitator, applies the electromagnetic induction power of tangential direction for metal liquid in first container, makes liquid metals horizontally rotate motion.
Described magnetic stirrer is an arc-shaped structure.
Or, the curved arrangement of the solenoid of described magnetic stirrer.
Again, the described first container inner bottom part is provided with the impact fill block, and this impact fill block is an arcs of recesses; Can prevent the metal beam to outside the washing away of first container bottom, also guide wire liquid rotates, and avoids metal liquid without purification, directly flows into the second container mixed storage device by the first container bottom passage.
Be provided with the guiding dam in described second container, flow directly into outside the crystallizer with the metal liquid unmixed of avoiding flowing in the second container mixed storage, also guide the big as far as possible circulation movement of metal liquid work in second container, metal liquid is not exposed, do not have volume slag phenomenon, make that metal liquid is fully mixed in the second container mixed storage.
Be installed in travelling-wave electromagnetic field agitator that metal liquid field trash cleaner one end is circular arc and impose on the stronger tangential direction electromagnetic induction power of metal liquid in its inboard cylindrical first container, promote metal liquid and horizontally rotate motion.Because the density of metal particle poor in non-metallic inclusion and the metal liquid in the metal liquid, when liquid metals horizontally rotates, the less non-metallic inclusion of density can be to the migration of melt middle part in the metal liquid, and in melt middle part generation collision mutually, gathering is grown up, and floats on the molten steel face on then.These non-metallic inclusion parts are absorbed by the coverture of first container top, enter the first container coverture; The non-metallic inclusion that all the other assemble the pivot top of the first container inner metal liquid body can be adsorbed on the outer wall of metal liquid immersion discharge pipe, and extracts from metal liquid and be excluded out metal liquid with discharge pipe.
After stirring purification, metal liquid flows into second container by the passage of first container bottom.After fully being mixed in second container, liquid metals flows into crystallizer and is frozen into solid metal.
The utility model can be removed large scale non-metallic inclusion, particularly flocculence field trash substantially.With regard to steel-making, deoxidation products, slag and the refractory material that can remove bulky grain in the steel＞10 μ m are mingled with, and improve the degree of purity of molten metal widely, help production high-quality stably, high added value and metal product cheaply.
Description of drawings
Fig. 1 is a structure cutaway view of the present utility model.
Fig. 2 be among Fig. 1 A-A to structural representation.
The specific embodiment
As shown in Figure 1 and Figure 2, metal liquid field trash cleaner described in the utility model, comprise body 1, magnetic stirrer 3, described body 1 is divided into first container 101, second container 102 by a divider wall 2, is provided with passage 4 therebetween two containers 101,102 are communicated with; Magnetic stirrer 3 is a circular arc, is located on outside first container 101 distolateral; This magnetic stirrer 3 is a travelling-wave electromagnetic field agitator, the solenoid 31 curved arrangements of magnetic stirrer 3; Described first container, 101 inner bottom parts are provided with and impact fill block 5, and this impacts fill block 5 is arcs of recesses, are provided with guiding dam 6 in described second container 102.
High-temperature metal liquid 11 in the metal liquid container 7 flows into column type first container 101 by immersion discharge pipe 8 in the axial symmetry mode; Be expert at the effect along first container, 101 tangential direction electromagnetic induction power that ripple electromagnetic field agitator 3 applies of high-temperature metal liquid 11 horizontally rotates down and moves in first container 101; When metal liquid 11 rotation, because the non-metallic inclusion 12 in the metal liquid 11 is different with the density of metal particle in the metal liquid 11, the less non-metallic inclusion of density 12 moves to pivot; Non-metallic inclusion 12 collides, assembles the separation of growing up, float mutually, discharges metal liquid 11 in metal liquid 11; Wherein a part of non-metallic inclusion 12 is rotated the container coverture and absorbs, and enters first container, 101 covertures, and remainder accumulates in the pivot top of first container, 101 inner metal liquid bodies 11, is adsorbed on metal liquid immersion discharge pipe 8 outer walls; When upgrading liquid metals container 7, the molten metal immersion discharge pipe 8 that is attached thereto also is pulled out metal liquid 11 thereupon, is adsorbed on tube wall non-metallic inclusion 12 all around thereby take away; Metal liquid 11 after the purification flows to rectangle second container 102 by the passage 4 of first container, 101 bottoms; Flow into crystallizers 10 by submersed nozzle 9 after metal liquid 11 fully is mixed and be frozen into solid metal in second container 102.
In sum, add outside under the electromagnetic field effect, produce and horizontally rotate motion at rotation stirring area inner metal liquid body.Because metal and non-metallic inclusion are mingled with density variation, when metal liquid horizontally rotated, the non-metallic inclusion that density is lower just moved to pivot, at the pivot place of metal liquid collision mutually took place, and gathering is grown up, and come-up is discharged molten steel.Use the degree of purity that this utility model can improve molten metal significantly.
Claims (10)
1. metal liquid field trash cleaner comprises body, it is characterized in that, described body is divided into first container, second container by a divider wall, is provided with passage therebetween first, second container is communicated with; Also be provided with magnetic stirrer, it is outer distolateral that this magnetic stirrer is located on first container.
2. metal liquid field trash cleaner as claimed in claim 1 is characterized in that, also is provided with the immersion discharge pipe, is arranged in first container, and its upper end is connected with ladle.
3. metal liquid field trash cleaner as claimed in claim 1 is characterized in that described first container is a column type.
4. metal liquid field trash cleaner as claimed in claim 1 is characterized in that described magnetic stirrer is an arcuate structure.
5. as claim 1 or 4 described metal liquid field trash cleaners, it is characterized in that the curved arrangement of the solenoid of described magnetic stirrer.
6. as claim 1 or 4 described metal liquid field trash cleaners, it is characterized in that described magnetic stirrer is a travelling-wave electromagnetic field agitator.
7. metal liquid field trash cleaner as claimed in claim 5 is characterized in that, described magnetic stirrer is a travelling-wave electromagnetic field agitator.
8. as claim 1 or 2 or 3 described metal liquid field trash cleaners, it is characterized in that the described first container inner bottom part is provided with the impact fill block.
9. metal liquid field trash cleaner as claimed in claim 8 is characterized in that described impact fill block is an arcs of recesses.
10. metal liquid field trash cleaner as claimed in claim 1 is characterized in that, is provided with the guiding dam in described second container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230562 CN2623382Y (en) | 2003-04-22 | 2003-04-22 | Metal liquid impurity cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03230562 CN2623382Y (en) | 2003-04-22 | 2003-04-22 | Metal liquid impurity cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2623382Y true CN2623382Y (en) | 2004-07-07 |
Family
ID=34247674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03230562 Expired - Lifetime CN2623382Y (en) | 2003-04-22 | 2003-04-22 | Metal liquid impurity cleaner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2623382Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340363C (en) * | 2005-01-19 | 2007-10-03 | 盛富春 | Method for removing ladle dross |
| CN102091777A (en) * | 2011-03-10 | 2011-06-15 | 冯顺新 | Equipment and method for removing nonmetallic slag inclusion in steel and iron smelting process |
| CN103103362A (en) * | 2013-01-31 | 2013-05-15 | 西南大学 | Double-level inverse filter method and filter device for molten aluminum |
| CN103894571A (en) * | 2014-03-28 | 2014-07-02 | 上海大学 | Method of purifying molten steel in tundish by gas vortex and molten steel purification device |
| CN105710348A (en) * | 2014-12-01 | 2016-06-29 | 鞍钢股份有限公司 | Device and method for removing inclusions through refined bubbles |
| CN111893246A (en) * | 2020-07-29 | 2020-11-06 | 浙江友谊新材料有限公司 | Steel ladle assembly for transferring and purifying molten steel |
| CN114288921A (en) * | 2022-01-11 | 2022-04-08 | 北京科技大学 | Agitating unit is used in high temperature alloy casting |
| CN114985685A (en) * | 2022-05-25 | 2022-09-02 | 唐山港陆钢铁有限公司 | Device and process for dispersing inclusion in molten steel of converter |
-
2003
- 2003-04-22 CN CN 03230562 patent/CN2623382Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100340363C (en) * | 2005-01-19 | 2007-10-03 | 盛富春 | Method for removing ladle dross |
| CN102091777A (en) * | 2011-03-10 | 2011-06-15 | 冯顺新 | Equipment and method for removing nonmetallic slag inclusion in steel and iron smelting process |
| CN102091777B (en) * | 2011-03-10 | 2012-12-26 | 冯顺新 | Equipment and method for removing nonmetallic slag inclusion in steel and iron smelting process |
| CN103103362A (en) * | 2013-01-31 | 2013-05-15 | 西南大学 | Double-level inverse filter method and filter device for molten aluminum |
| CN103103362B (en) * | 2013-01-31 | 2015-09-09 | 西南大学 | The reverse double-stage filtering method of aluminium water and filtration unit |
| CN103894571A (en) * | 2014-03-28 | 2014-07-02 | 上海大学 | Method of purifying molten steel in tundish by gas vortex and molten steel purification device |
| CN103894571B (en) * | 2014-03-28 | 2016-03-30 | 上海大学 | The method of gas swirling flow purification tundish molten steel and molten steel purifying device |
| CN105710348A (en) * | 2014-12-01 | 2016-06-29 | 鞍钢股份有限公司 | Device and method for removing inclusions through refined bubbles |
| CN111893246A (en) * | 2020-07-29 | 2020-11-06 | 浙江友谊新材料有限公司 | Steel ladle assembly for transferring and purifying molten steel |
| CN111893246B (en) * | 2020-07-29 | 2021-10-01 | 浙江友谊新材料有限公司 | Steel ladle assembly for transferring and purifying molten steel |
| CN114288921A (en) * | 2022-01-11 | 2022-04-08 | 北京科技大学 | Agitating unit is used in high temperature alloy casting |
| CN114985685A (en) * | 2022-05-25 | 2022-09-02 | 唐山港陆钢铁有限公司 | Device and process for dispersing inclusion in molten steel of converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20091106 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091106 Address after: Orchard, Fujin Road, Shanghai, Baoshan District: 201900 Patentee after: Baoshan Iron & Steel Co., Ltd. Address before: No. 735 Changjiang Road, Shanghai, Baoshan District: 200431 Patentee before: Shanghai First Iron & Steel Co., Ltd., Baogang Group |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130422 Granted publication date: 20040707 |