CN204111805U - A kind of RH equipment for vacuum refining with barricade - Google Patents
A kind of RH equipment for vacuum refining with barricade Download PDFInfo
- Publication number
- CN204111805U CN204111805U CN201420503573.1U CN201420503573U CN204111805U CN 204111805 U CN204111805 U CN 204111805U CN 201420503573 U CN201420503573 U CN 201420503573U CN 204111805 U CN204111805 U CN 204111805U
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- barricade
- molten steel
- vacuum chamber
- refining
- vacuum
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Abstract
The utility model discloses a kind of RH equipment for vacuum refining with barricade, effectively can improve the refining efficiency of molten steel.This device comprises: vacuum chamber, soaking tub and ladle, and it is characterized in that this device also comprises barricade, the mid-way in vacuum chamber built by laying bricks or stones by described barricade, and the height of barricade is 10-60cm, and width is 10-30cm, and length equals the length in vacuum chamber.The utility model, by adding a barricade, makes the molten steel circulation distance bottom vacuum chamber strengthen, and reduces vacuum chamber bottom dead, increases circular flow, increases bare area simultaneously, can improve refining efficiency and quality of molten steel.
Description
Technical field
The utility model relates to ferrous metallurgical industry RH a refining unit, particularly a kind of RH equipment for vacuum refining with barricade.
Background technology
RH is a kind of equipment for vacuum refining molten steel being carried out to circular treatment.Before steel treatment, first soaking tub is immersed in pending ladle molten steel.When vacuum tank vacuumizes, the barometric point of molten steel surface forces molten steel to flow in vacuum tank from soaking tub.Two soaking tubs be communicated with vacuum tank, one is upcast, and one is downtake.Because upcast is constantly blown into argon gas to molten steel, relatively do not have the downtake of Argon to create a higher static pressure difference, make molten steel enter from upcast and flow to downtake by vacuum tank bottom, so constantly circulation repeatedly.Under vacuum conditions, flow through the gases such as the argon gas in vacuum tank molten steel, hydrogen, carbon monoxide to be pumped in molten steel working cycle.Meanwhile, the molten steel entered in vacuum tank also carries out a series of metallurgical reaction, such as reaction between carbon and oxygen etc., and circulating degasification refining like this makes molten steel be purified.Molten steel advantage through RH process is obvious: alloy does not react with slag substantially, and alloy directly adds among molten steel, and recovery rate is high; Molten steel energy Quick uniform mixes; Alloying constituent can be controlled within narrow scope; Gas content is low, and inclusion is few, and Molten Steel Cleanliness is high; The temperature adjustment of chemical heating can also be carried out with top rifle, for continuous caster provides good fluidity, high purity, meets the molten steel of pouring temperature, be beneficial to the sequence casting that continuous casting is produced.Molten steel bottom vacuum chamber is likely direct, and in bottom position circulation, distance reduces, and does not have exposed to top, forms dead band, increases bottom steel liquid recycle stream amount, and increasing molten steel bare area is the means improving RH refining efficiency.
Open (bulletin) number: the CN102605141A of patent, a kind of RH a refining unit of improvement is disclosed, relate to molten steel refining device field, comprise refining furnace, refining bag, casting ladle, lifting feed channel and powder adding apparatus, the inside of refining furnace is provided with vacuum chamber, upcast and downtake is provided with bottom vacuum chamber, the lower port of upcast is placed in refining bag, the lower port of downtake is placed in casting ladle, the bottom of casting ladle is provided with cast tubes, promote feed channel to communicate with upcast bottom, powder adding apparatus is located at and promotes in feed channel, and communicates with it.Apparatus of the present invention make the upcast bottom refining furnace and downtake be located at respectively in two different ladles, avoid repetition refining, improve the recovery rate of molten steel, save the energy simultaneously; And refining and casting cycle can be made simultaneously to carry out, improve industrial production efficiency.But do not solve vacuum chamber inner bottom part dead-time problem, can not the refining efficiency of more effective raising molten steel.
Open (bulletin) number: the CN201793627U of patent, discloses a kind of air feeder for RH refining furnace upcast, relates to the air feeder of RH refining furnace upcast.It is primarily of the flame retardant coating in upcast epimere, upcast hypomere, air-supply duct, gas manifold, upcast, air supply chamber composition, and it is: gas manifold is divided into gas manifold and lower gas manifold, and upcast epimere inwall loads onto gas manifold; Upcast hypomere inwall loads gas manifold, and upper gas manifold and lower gas manifold are in the vertical direction staggered arrangement of upcast; Upper gas manifold and lower gas manifold are equipped with nozzle respectively; Upper gas manifold and lower gas manifold are connected with air supply chamber respectively and communicate.This device can apply external force to the molten steel in upcast, molten steel is rotated again while upwards flowing, to increase the circular flow of molten steel, significantly improve the performance index of steel after refining, improve RH production efficiency, the infringement that high temperature and molten steel splash cause it can be prevented, ensure air feed and refining effect.Do not solve vacuum chamber inner bottom part molten steel circulatory problems, can not the refining efficiency of more effective raising molten steel.
Utility model content
Basis is novel provides a kind of RH equipment for vacuum refining with barricade, effectively can improve the refining efficiency of molten steel.。
This novel a kind of RH equipment for vacuum refining with barricade provided comprises: vacuum chamber, soaking tub and ladle, it is characterized in that this device also comprises barricade, the mid-way in vacuum chamber built by laying bricks or stones by described barricade, the height of barricade is 10-60cm, width is 10-30cm, and length equals the length in vacuum chamber.
The utility model is compared with existing apparatus, its beneficial effect is embodied in: the utility model is by adding a barricade, molten steel circulation distance bottom vacuum chamber is strengthened, reduce vacuum chamber bottom dead, increase circular flow, increase bare area simultaneously, refining efficiency and quality of molten steel can be improved.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the RH equipment for vacuum refining with barricade.
Embodiment
As shown in Figure 1, a kind of RH equipment for vacuum refining with barricade, this device is made up of vacuum chamber 1, barricade 2, soaking tub 3 and ladle 4, the mid-way in vacuum chamber 1 built by laying bricks or stones by described barricade 2, the height of barricade 2 is 10 ~ 60cm, and width is 10 ~ 30cm, and length equals the length in vacuum chamber.
Claims (1)
1. one kind comprises with the RH equipment for vacuum refining of barricade: vacuum chamber, soaking tub and ladle, it is characterized in that this device also comprises barricade, the mid-way in vacuum chamber built by laying bricks or stones by described barricade, and the height of barricade is 10-60cm, width is 10-30cm, and length equals the length in vacuum chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503573.1U CN204111805U (en) | 2014-09-02 | 2014-09-02 | A kind of RH equipment for vacuum refining with barricade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503573.1U CN204111805U (en) | 2014-09-02 | 2014-09-02 | A kind of RH equipment for vacuum refining with barricade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204111805U true CN204111805U (en) | 2015-01-21 |
Family
ID=52329138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420503573.1U Expired - Fee Related CN204111805U (en) | 2014-09-02 | 2014-09-02 | A kind of RH equipment for vacuum refining with barricade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204111805U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106636561A (en) * | 2017-03-21 | 2017-05-10 | 中冶赛迪工程技术股份有限公司 | Single-nozzle three-hole vacuum refining furnace and using method thereof |
| CN109576447A (en) * | 2018-12-29 | 2019-04-05 | 钢铁研究总院 | A kind of RH purifier and method promoting the decarburization of molten steel depth |
| CN114959186A (en) * | 2022-06-10 | 2022-08-30 | 东北大学 | RH vacuum refining device and method with partition wall in ladle |
| CN115287413A (en) * | 2022-08-16 | 2022-11-04 | 山东钢铁股份有限公司 | RH furnace vacuum tank metallurgy device and method |
-
2014
- 2014-09-02 CN CN201420503573.1U patent/CN204111805U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106636561A (en) * | 2017-03-21 | 2017-05-10 | 中冶赛迪工程技术股份有限公司 | Single-nozzle three-hole vacuum refining furnace and using method thereof |
| CN106636561B (en) * | 2017-03-21 | 2018-10-19 | 中冶赛迪工程技术股份有限公司 | A kind of list three hole vacuum refining furnace of mouth and its application method |
| CN109576447A (en) * | 2018-12-29 | 2019-04-05 | 钢铁研究总院 | A kind of RH purifier and method promoting the decarburization of molten steel depth |
| CN109576447B (en) * | 2018-12-29 | 2024-06-04 | 钢铁研究总院 | RH refining device and method for promoting deep decarburization of molten steel |
| CN114959186A (en) * | 2022-06-10 | 2022-08-30 | 东北大学 | RH vacuum refining device and method with partition wall in ladle |
| CN115287413A (en) * | 2022-08-16 | 2022-11-04 | 山东钢铁股份有限公司 | RH furnace vacuum tank metallurgy device and method |
| CN115287413B (en) * | 2022-08-16 | 2023-11-24 | 山东钢铁股份有限公司 | RH furnace vacuum tank metallurgical device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20150902 |
|
| EXPY | Termination of patent right or utility model |