CN203855606U - Single-drum refining furnace - Google Patents
Single-drum refining furnace Download PDFInfo
- Publication number
- CN203855606U CN203855606U CN201420179382.4U CN201420179382U CN203855606U CN 203855606 U CN203855606 U CN 203855606U CN 201420179382 U CN201420179382 U CN 201420179382U CN 203855606 U CN203855606 U CN 203855606U
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- CN
- China
- Prior art keywords
- molten steel
- refining furnace
- ladle
- vacuum chamber
- impregnating
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- Expired - Fee Related
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model belongs to the technical field of ferrous metallurgy and particularly relates to a single-drum refining furnace in the field of steel refining. The single-drum refining furnace comprises a vacuum chamber and impregnating tubes, the vacuum chamber is communicated with the impregnating tubes, the lower parts of impregnating tubes are inserted in the molten steel in the ladle, the bottom of the ladle adopts an eccentric argon blowing structure and a battle plate is arranged at the medial axis of the impregnating tube. Since an eccentric bottom blowing is adopted in the refining furnace disclosed by the utility model and an optimal bottom blowing position is provided, the argon blown into the ladle can be effectively recycled, the cost conservation is achieved, and the circulation rate of molten steel and the smelting effect are both improved; since impregnating tubes are separated by virtue of the baffle plate, the mutual interference between flow fields of rising molten steel and falling molten steel is avoided and the circulation flow time is shortened.
Description
Technical field
The utility model belongs to technical field of ferrous metallurgy, particularly relates to a kind of monotubular refining furnace in Steel Refining field.
Background technology
In field of metallurgy, RH refers to monoblock type or split type vacuum chamber, and in the time processing molten steel, metallurgical reaction carries out in this vacuum chamber; The bottom of RH have two with refractory materials the soaking tub as liner, after high bake, use, its top is connected with hot-bending pipe, then is connected with pumped vacuum systems; In metallurgical reaction process, the various gases of all generations are extracted out outside vacuum chamber by pumped vacuum systems through hot-bending pipe, gas cooler.
When molten steel is carried out to vacuum-treat, with buggy ladle, the ladle that fills molten steel is sent to vacuum-treat position, decline soaking tub, vacuumizes, so as a soaking tub bottom to molten steel blowing argon gas, another soaking tub is not blown into argon gas, molten steel starts to move in circles.At this moment take following measure, for example degassed, oxygen blast, add sweetening agent to carry out desulfurization, add alloy and adjust temperature; When processing finishes, system vacuum breaker, soaking tub rises, and ladle is delivered to next process.
And monotubular refining furnace is to change the two soaking tubs in RH vacuum circulating degasser into single-dip pipe, soaking tub is the round shape steel construction that is lined with refractory materials, when refining, soaking tub is inserted into below molten steel liquid level, and argon bottom-blowing makes molten steel circulation.
Existing monotubular refining furnace changes two soaking tubs of traditional RH into round shape single-dip pipe that diameter is larger, change the circulation of RH soaking tub Argon for the eccentric Argon of ladle bottom, although strengthened the circular flow of molten steel in soaking tub, argon bottom-blowing has also strengthened bubble pathway length, air-blowing quantity reduces greatly, but rising flow field of molten steel and decline flow field of molten steel also can phase mutual interference in soaking tub, reduce cycle efficiency.
Utility model content
The problem existing for prior art, the utility model provides a kind of monotubular refining furnace, and this refining furnace adopts eccentric bottom-blowing argon gas mode, is provided with baffle plate in soaking tub, can well improve metallurgical effect, effectively avoid the phase mutual interference of rising flow field of molten steel and decline flow field of molten steel in soaking tub.
To achieve these goals, the utility model adopts following technical scheme: a kind of monotubular refining furnace, comprise vacuum chamber and soaking tub, described vacuum chamber is connected with soaking tub, insert in the molten steel of ladle the bottom of soaking tub, described ladle bottom adopts eccentric Argon structure, it is characterized in that: the axis place at soaking tub arranges baffle plate.
Preferably, the eccentric Argon structure of described ladle bottom is: at described ladle bottom, non-central place is provided with gas permeable brick, and gas permeable brick communicates with ventpipe.
Further preferably, described baffle plate is circular arc, rectangle or the rectangle with chamfering near the shaped upper part of vacuum chamber.
Further preferably, the gas permeable brick of described ladle bottom is circle, rectangle, fan-shaped or crescent.
Further preferably, described gas permeable brick is arranged on apart from 0.3R place, ladle bottom center, and wherein R is ladle bottom radius.
The beneficial effects of the utility model are: adopt eccentric bottom-blowing, and best Bottom blowing location is provided, thereby the argon gas that makes to be blown in ladle can be effectively used to circulation, cost-saving, the cycling rate of raising molten steel, improves metallurgical effect; Adopt baffle plate that soaking tub is separated, thereby avoided the phase mutual interference in flow field between rising molten steel and decline molten steel, the time that shortening circulates; Production technique is simple, transforms existing process costs low, is easy to suitability for industrialized production; Strengthen the metallurgical effect of Multifunctional multiple blowing single nozzle refining furnace, be more suitable for promoting the use of.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of monotubular refining furnace of the present utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the Molten Steel Flow schematic diagram of refining furnace of the present utility model;
In figure, 1-vacuum chamber, 2-baffle plate, 3-soaking tub, 4-ladle, 5-gas permeable brick, 6-ventpipe.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, 2, a kind of monotubular refining furnace, comprise vacuum chamber 1 and soaking tub 3, described vacuum chamber 1 is connected with soaking tub 3, insert in the molten steel of ladle 4 bottom of soaking tub 3, described ladle 4 bottoms adopt eccentric Argon structure, and described ladle 4 bottoms are provided with gas permeable brick 5 far from 0.3R place, center, and wherein R is ladle bottom radius; The gas permeable brick 5 of described ladle 4 bottoms is crescent; Gas permeable brick 5 is connected with ventpipe 6; Axis place at soaking tub 2 arranges baffle plate 2, and described baffle plate 2 is circular arc near the shaped upper part of vacuum chamber.
As shown in Figure 3, when molten steel is carried out to refining, by hydraulic jacking system, soaking tub 3 is dropped in the ladle 4 that fills molten steel, start the vacuum pump of vacuum chamber 1; Because vacuum chamber 1 room pressure declines, molten steel is inhaled into vacuum chamber, argon gas is blown into by gas permeable brick 5 in the molten steel of ladle splendid attire, molten steel rises to vacuum chamber 1 from the soaking tub 3 of a side of baffle plate 2, drop to again the soaking tub 3 of the opposite side of baffle plate 2 from vacuum chamber 1, flow back to again in the molten steel in ladle 4, start iterative cycles, thereby realize the refining of molten steel.
Claims (5)
1. a monotubular refining furnace, comprise vacuum chamber and soaking tub, described vacuum chamber is connected with soaking tub, and insert in the molten steel of ladle the bottom of soaking tub, described ladle bottom adopts eccentric Argon structure, it is characterized in that: the axis place at soaking tub arranges baffle plate.
2. monotubular refining furnace according to claim 1, is characterized in that: the eccentric Argon structure of described ladle bottom is: at described ladle bottom, non-central place is provided with gas permeable brick, and gas permeable brick communicates with ventpipe.
3. monotubular refining furnace according to claim 1, is characterized in that: described baffle plate is circular arc, rectangle or the rectangle with chamfering near the shaped upper part of vacuum chamber.
4. monotubular refining furnace according to claim 2, is characterized in that: the gas permeable brick of described ladle bottom is circle, rectangle, fan-shaped or crescent.
5. monotubular refining furnace according to claim 2, is characterized in that: described gas permeable brick is arranged on apart from 0.3R place, ladle bottom center, and wherein R is ladle bottom radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179382.4U CN203855606U (en) | 2014-04-14 | 2014-04-14 | Single-drum refining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420179382.4U CN203855606U (en) | 2014-04-14 | 2014-04-14 | Single-drum refining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203855606U true CN203855606U (en) | 2014-10-01 |
Family
ID=51605473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420179382.4U Expired - Fee Related CN203855606U (en) | 2014-04-14 | 2014-04-14 | Single-drum refining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203855606U (en) |
Cited By (2)
| 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 |
| CN110863083A (en) * | 2019-12-10 | 2020-03-06 | 无锡东大汉森冶金实业有限公司 | Single-nozzle double-hole structure impregnation pipe and manufacturing method thereof |
-
2014
- 2014-04-14 CN CN201420179382.4U patent/CN203855606U/en not_active Expired - Fee Related
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 |
| 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 |
| CN110863083A (en) * | 2019-12-10 | 2020-03-06 | 无锡东大汉森冶金实业有限公司 | Single-nozzle double-hole structure impregnation pipe and manufacturing method thereof |
| CN110863083B (en) * | 2019-12-10 | 2024-03-26 | 苏州东大汉森冶金实业有限公司 | Single-tube double-hole structure dip pipe and manufacturing method thereof |
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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: 20141001 Termination date: 20150414 |
|
| EXPY | Termination of patent right or utility model |