CN103184316B - Novel vacuum tank device and method - Google Patents
Novel vacuum tank device and method Download PDFInfo
- Publication number
- CN103184316B CN103184316B CN201310129031.2A CN201310129031A CN103184316B CN 103184316 B CN103184316 B CN 103184316B CN 201310129031 A CN201310129031 A CN 201310129031A CN 103184316 B CN103184316 B CN 103184316B
- Authority
- CN
- China
- Prior art keywords
- argon blowing
- molten steel
- ladle
- vacuum
- soaking tub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention relates to the technical field of RH external refining and in particular relates to a novel vacuum tank device and method. The device consists of a hot bend pipe, an upper vacuum tank, a lower vacuum tank, an impregnated pipe, circulating pipes, a steel ladle, an argon blowing port, a bottom argon blowing valve station and a circulating valve station, wherein the cross section of the impregnated pipe is elliptical; the impregnated pipe is sequentially and fixedly connected with the lower vacuum tank, the upper vacuum tank and the hot bend pipe from bottom to top; multiple circulating pipes are symmetrically distributed on the pipe wall of the elliptical impregnated pipe along the focus on one side of the long axis direction by taking the long axis as the center; the circulating pipes are communicated with the circulating valve station; the bottom of the steel ladle is provided with the argon blowing port; the argon blowing port is communicated with the bottom argon blowing valve station; and the elliptical focus on one side of the elliptical impregnated pipe with the circulating pipes along with long axis direction corresponds to the argon blowing port of the steel ladle. By adoption of the elliptical single-impregnation structure, the RH external refining of small-tonnage molten steel can be realized, the small-amount high-quality steel smelting is realized, and the competitiveness of products in small steel mills is greatly improved.
Description
Technical field
The present invention relates to RH furnace outer refining technology field, particularly a kind of novel vacuum tank device and method in RH external refining device.
Background technology
The function of RH external refining carries out vacuum circulation degassing to molten steel, degassed vacuum vessel used is vacuum tank, the bottom of vacuum tank connects with two soaking tubs, ladle is stretched in molten steel after jack-up, what one of them was blown into using argon gas as driving gas is upcast, another one is downtake, and be evacuated in vacuum tank by vacuum pump, molten steel is under the effect being blown into argon gas, systemic circulation is formed with the molten steel in ladle, reach degassed and go deimpurity effect, produce high quality, high value-added product.
At present, known in RH external refining system, the structure of vacuum tank is two soaking tub structure, and cross-sectional area is comparatively large, and the ladle mouth of less tonnage is less, and soaking tub cannot insert.So the ladle of more than 100 tons that only has of present stage could adopt RH external refining, the ladle being less than 100 tons cannot adopt RH external refining.
Summary of the invention
The object of this invention is to provide a kind of novel vacuum tank device and method, realize the RH external refining of little tonnage ladle.
The present invention solves the technical scheme that its technical problem adopts: design a kind of novel vacuum tank device, it is by hot-bending pipe, top vacuum tank, lower vacuum groove, soaking tub, circulating pipe, ladle, argon blowing hole, BOTTOM ARGON BLOWING valve station and circulation valve station composition, it is characterized in that: its soaking tub quantity is one, the cross section of soaking tub is oval, with lower vacuum groove, top vacuum tank, hot-bending pipe is fixedly connected sequentially from bottom to top, the tube wall of oval soaking tub along long axis direction side focus is symmetrically distributed with several circulating pipes centered by major axis, circulating pipe is communicated with circulation valve station, described ladle bottom is provided with argon blowing hole, and argon blowing hole is communicated with BOTTOM ARGON BLOWING valve station, described oval soaking tub is along the elliptic focus of long axis direction with circulating pipe side and the ladle argon-blown mouth correspondence of below.
The method of design of described novel vacuum tank device, it is characterized in that: adopt soaking tub quantity to be one, the cross section of soaking tub is oval, the tube wall of oval soaking tub along long axis direction side focus is symmetrically distributed with several circulating pipes centered by major axis, circulating pipe is communicated with circulation valve station, open circulation valve station and be blown into the driving gas of argon gas as molten steel circulation smelting by circulating pipe, under bubble, molten steel rises in lower vacuum groove along the passage of the side focus of oval soaking tub, after bubble is taken away by vacuum pump, molten steel flows back to ladle by the passage of the opposite side focus of oval soaking tub under gravity, by repeatedly circulating vacuum process, realize the vacuum metling of molten steel, BOTTOM ARGON BLOWING valve station is not now as the driving gas of vacuum metling.
The method of design of described novel vacuum tank device, it is characterized in that: adopt soaking tub quantity to be one, the cross section of soaking tub is oval, utilize the argon blowing hole of ladle bottom, open BOTTOM ARGON BLOWING valve station and be blown into driving gas by argon blowing hole, under bubble, molten steel rises in ladle, and rise in lower vacuum groove along the passage of the side focus of oval soaking tub, after bubble is taken away by vacuum pump, molten steel flows back to ladle by the passage of the opposite side focus of oval soaking tub under gravity; By repeatedly circulating vacuum process, realize the vacuum metling of molten steel; Circulation valve station is not now as the driving gas of vacuum metling.
The method of design of described novel vacuum tank device, it is characterized in that: adopt soaking tub quantity to be one, the cross section of soaking tub is oval, the tube wall of oval soaking tub along long axis direction side focus is symmetrically distributed with several circulating pipes centered by major axis, and oval soaking tub is along the elliptic focus of long axis direction with circulating pipe side and the argon blowing hole correspondence of ladle; Open circulation valve station and be blown into argon gas as driving gas by circulating pipe; Utilize the argon blowing hole of ladle simultaneously, open BOTTOM ARGON BLOWING valve station and be blown into argon gas as driving gas by argon blowing hole, under the bubble of two different positionss, molten steel rapidly increases in lower vacuum groove along the passage of the side focus of oval soaking tub, after bubble is taken away by vacuum pump, molten steel flows back to ladle by the opposite side focus of oval soaking tub under gravity; By repeatedly circulating vacuum process, realize the vacuum metling of molten steel.
The invention has the beneficial effects as follows, a kind of novel vacuum tank device, adopt novel oval single-dip pipe structure, greatly reduce the cross section of soaking tub, and circumferentially arrange that the steel pipe of proper amt passes into argon gas as driving gas at the tube wall of soaking tub major axis side focus, or adopt BOTTOM ARGON BLOWING as driving gas, or adopt above two kinds of modes as driving gas simultaneously, realize the Rapid Circulation vacuum metling of molten steel in vacuum tank.Its final beneficial effect is the smelting molten steel making RH external refining device be applicable to the ladle being less than 100 tons, provides and realize short run for medium and small steel mill, and the smelting mode of high added value steel grade, improves the competitive power of medium and small steel mill product.
Above-mentioned said hot-bending pipe, top vacuum tank, lower vacuum groove, the structure at ladle, circulation valve station, BOTTOM ARGON BLOWING valve station is known technology in RH external refining device.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, invention is further illustrated:
Fig. 1 is the structural representation of the vacuum tank device of the embodiment of the present invention;
Fig. 2 is the structural plan figure of the vacuum tank device of the embodiment of the present invention.
In figure: 1, hot-bending pipe 2, top vacuum tank; 3, lower vacuum groove; 4, soaking tub; 5, circulating pipe; 6, ladle; 7, BOTTOM ARGON BLOWING mouth; 8, BOTTOM ARGON BLOWING valve station; 9, circulation valve station.
Embodiment
Embodiment 1
As depicted in figs. 1 and 2, novel vacuum tank device, it is made up of hot-bending pipe 1, top vacuum tank 2, lower vacuum groove 3, soaking tub 4, circulating pipe 5, ladle 6, argon blowing hole 7, BOTTOM ARGON BLOWING valve station 8, circulation valve station 9.Its soaking tub 4 quantity is one, the cross section of soaking tub 4 is oval, be fixedly connected sequentially from bottom to top with lower vacuum groove 3, top vacuum tank 2, hot-bending pipe 1, it is 8 that the tube wall of oval soaking tub along long axis direction side focus is symmetrically distributed with several circulating pipes 5(the present embodiment centered by major axis), circulating pipe 5 is communicated with circulation valve station 9; Be provided with argon blowing hole 7 bottom described ladle 6, argon blowing hole 7 is communicated with BOTTOM ARGON BLOWING valve station 8; Described oval soaking tub 4 is along the elliptic focus of long axis direction with circulating pipe 5 side and argon blowing hole 7 correspondence of below.
Hot-bending pipe 1 the other end is connected with vacuum pump by pipeline.Soaking tub 4 and lower vacuum groove 3 fixed seal connection.
When molten steel vacuum-treat, soaking tub inserts in molten steel, open BOTTOM ARGON BLOWING valve station 8 and be blown into argon gas by argon blowing hole 7, under Argon Bubble effect, molten steel rises in lower vacuum groove 3 by the passage of the side focus of oval soaking tub 4, and after bubble is taken away by vacuum pump, the opposite side focus that molten steel leads to oval soaking tub 4 under gravity flows back to again in ladle 6, after repeatedly circulating, realize the vacuum metling of molten steel.Circulation valve station 9 is not now as the driving gas of vacuum metling.
Embodiment 2
Structure is identical with embodiment 1, and difference is:
Open circulation valve station 9 and can be blown into the driving gas of argon gas as molten steel circulation smelting by circulating pipe 5.
When molten steel vacuum-treat, soaking tub 4 inserts in molten steel, driving gas is blown into by circulation valve station 9 and circulating pipe 5, under Argon Bubble effect, molten steel rises in lower vacuum groove 3 by the passage around the side focus of oval soaking tub 4, and after bubble is taken away by vacuum pump, molten steel flows back to again in ladle 6 by the passage of the opposite side focus of oval soaking tub 4 under gravity, after repeatedly circulating, realize the vacuum metling of molten steel.BOTTOM ARGON BLOWING valve station 8 is not now as the driving gas of vacuum metling.
Embodiment 3
Structure is identical with embodiment 1, and difference is:
When molten steel vacuum-treat, soaking tub inserts in molten steel, open circulation valve station 9 by circulating pipe 5, open BOTTOM ARGON BLOWING valve station 8 by argon blowing hole 7 simultaneously, the argon gas that two positions are blown into is as driving gas, molten steel can rise in lower vacuum groove 3 by the side focus passage of oval soaking tub 4 sooner, after bubble is taken away by vacuum pump, molten steel is flowed back to again in ladle 6 fast by the opposite side focus of oval soaking tub 4 under gravity, after repeatedly circulating, realize the vacuum metling of molten steel.
In above-described embodiment, the quantity of circulating pipe 5 generally adopts 2-20, specifically selects proper amt according to practical situation.Described circulating pipe 5 is steel pipe.
The feature that the present invention is the most basic adopts oval single-dip pipe structure, the tube wall of soaking tub major axis side focus arranges circulating pipe 5, is blown into argon gas, separately as the driving gas that molten steel circulation is smelted; Or adjust the position of long axis direction two focuses of oval soaking tub 4, make the focus of oval soaking tub side corresponding with ladle bottom argon blowing hole, the argon gas be blown into is separately as the driving gas of molten steel circulation; Or the driving gas that the argon gas simultaneously adopting above two kinds of modes to be blown into circulates as molten steel, realize the circulation of molten steel in vacuum tank and smelt.Simultaneously according to the bifocal feature of ellipse, adopt suitable driving gas pressure and flow, make molten steel along the passage around the side focus of long axis direction as upcast, the passage around opposite side focus, as downtake, makes the vacuum cycle of molten steel smelt the ladle being more suitable for little tonnage.
Three kinds of modes of the present invention are not too large difference in application, mainly selects according to the deflection of steel mill oneself, adopts circulation to add BOTTOM ARGON BLOWING effect best, adopts the effect of circulation to take second place, if circulation cannot increase, can adopt independent BOTTOM ARGON BLOWING.Their final effect can smelt identical steel grade, just length tap to tap time slightly difference.
The parts that the present embodiment does not describe in detail and structure belong to the well-known components of the industry and common structure or conventional means, do not describe one by one here.
Claims (1)
1. novel vacuum tank device, it is by hot-bending pipe (1), top vacuum tank (2), lower vacuum groove (3), soaking tub (4), circulating pipe (5), ladle (6), argon blowing hole (7), BOTTOM ARGON BLOWING valve station (8) and circulation valve station (9) composition, it is characterized in that: its soaking tub (4) quantity is one, the cross section of soaking tub (4) is oval, with lower vacuum groove (3), top vacuum tank (2), hot-bending pipe (1) is fixedly connected sequentially from bottom to top, the tube wall of oval soaking tub along long axis direction side focus is symmetrically distributed with several circulating pipes (5) centered by major axis, circulating pipe (5) is communicated with circulation valve station (9), described ladle (6) bottom is provided with argon blowing hole (7), and argon blowing hole (7) is communicated with BOTTOM ARGON BLOWING valve station (8), described oval soaking tub (4) is along the elliptic focus of long axis direction with circulating pipe (5) side and ladle argon-blown mouth (7) correspondence of below,
The mode of operation of this device has following 3 kinds of modes:
The first: circulating pipe (5) is communicated with circulation valve station (9), open circulation valve station (9) and be blown into the driving gas of argon gas as molten steel circulation smelting by circulating pipe (5), under bubble, molten steel rises in lower vacuum groove (3) along the passage of the side focus of oval soaking tub (4), after bubble is taken away by vacuum pump, molten steel flows back to ladle (6) by the passage of the opposite side focus of oval soaking tub (4) under gravity; By repeatedly circulating vacuum process, realize the vacuum metling of molten steel; BOTTOM ARGON BLOWING valve station (8) is not now as the driving gas of vacuum metling;
The second: adopt soaking tub (4) quantity to be one, the cross section of soaking tub (4) is oval, utilize the argon blowing hole (7) of ladle (6) bottom, open BOTTOM ARGON BLOWING valve station (8) and be blown into driving gas by argon blowing hole (7), under bubble, molten steel rises in ladle (6), and rise in lower vacuum groove (3) along the passage of the side focus of oval soaking tub (4), after bubble is taken away by vacuum pump, molten steel flows back to ladle (6) by the passage of the opposite side focus of oval soaking tub (4) under gravity; By repeatedly circulating vacuum process, realize the vacuum metling of molten steel; Circulation valve station (9) is not now as the driving gas of vacuum metling;
The third: oval soaking tub (4) is along the elliptic focus of long axis direction with circulating pipe (5) side and argon blowing hole (7) correspondence of ladle (6); Open circulation valve station (9) and be blown into argon gas as driving gas by circulating pipe (5); Utilize the argon blowing hole (7) of ladle (6) simultaneously, open BOTTOM ARGON BLOWING valve station (8) and be blown into argon gas as driving gas by argon blowing hole (7), under the bubble of two different positionss, molten steel rapidly increases in lower vacuum groove (3) along the passage of the side focus of oval soaking tub (4), after bubble is taken away by vacuum pump, molten steel flows back to ladle (6) by the opposite side focus of oval soaking tub (4) under gravity; By repeatedly circulating vacuum process, realize the vacuum metling of molten steel;
This device is applicable to the smelting molten steel of the ladle being less than 100 tons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310129031.2A CN103184316B (en) | 2013-04-15 | 2013-04-15 | Novel vacuum tank device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310129031.2A CN103184316B (en) | 2013-04-15 | 2013-04-15 | Novel vacuum tank device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103184316A CN103184316A (en) | 2013-07-03 |
| CN103184316B true CN103184316B (en) | 2015-02-25 |
Family
ID=48675762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310129031.2A Expired - Fee Related CN103184316B (en) | 2013-04-15 | 2013-04-15 | Novel vacuum tank device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103184316B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105755211B (en) * | 2016-04-22 | 2017-12-26 | 中国重型机械研究院股份公司 | A kind of RH vacuum slot devices |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914692A (en) * | 2010-08-17 | 2010-12-15 | 牛强 | Single-dip pipe silicon iron bath vacuum circulated magnesium-smelting device and method |
| CN202297675U (en) * | 2011-10-18 | 2012-07-04 | 马钢(集团)控股有限公司 | Flat single-pipe vacuum refining device |
| CN203229549U (en) * | 2013-04-15 | 2013-10-09 | 中国重型机械研究院股份公司 | Novel vacuum tank device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005264264A (en) * | 2004-03-19 | 2005-09-29 | Sumitomo Metal Ind Ltd | Method and apparatus for vacuum-refining molten steel |
-
2013
- 2013-04-15 CN CN201310129031.2A patent/CN103184316B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101914692A (en) * | 2010-08-17 | 2010-12-15 | 牛强 | Single-dip pipe silicon iron bath vacuum circulated magnesium-smelting device and method |
| CN202297675U (en) * | 2011-10-18 | 2012-07-04 | 马钢(集团)控股有限公司 | Flat single-pipe vacuum refining device |
| CN203229549U (en) * | 2013-04-15 | 2013-10-09 | 中国重型机械研究院股份公司 | Novel vacuum tank device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103184316A (en) | 2013-07-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203229549U (en) | Novel vacuum tank device | |
| CN103866090B (en) | RH equipment for vacuum refining telescopic soaking tub used | |
| CN103184316B (en) | Novel vacuum tank device and method | |
| CN105537549A (en) | Production method of continuous casting round billet of seamless steel tube steel at low temperature of minus 100 DEG C | |
| CN101927421A (en) | Cold-drawing processing method for making small-volume gas cylinder by seamless steel tube | |
| CN203976853U (en) | A kind of shower nozzle of RH vacuum refining top gun | |
| CN103817258A (en) | Metal vacuum cup manufacturing method and metal vacuum cup | |
| CN202968622U (en) | Single-mouth vacuum refining device | |
| CN206430186U (en) | A kind of waste heat boiler fire door water-cooling wall | |
| CN205687963U (en) | RH vacuum tank flow-guiding type mass-impregnation pipe and equipment for vacuum refining thereof | |
| CN201289301Y (en) | Copple for medium-frequency induction furnace and mold for manufacturing the same | |
| CN204629068U (en) | The high-strength vehicle tubular construction component of inner high voltage near-net-shape | |
| CN204434651U (en) | Suppress the converter taphole of eddy current slag | |
| CN102921939B (en) | A kind of molten iron slag gathering slag skimming method | |
| CN204550649U (en) | A kind of Novel precise furnace feeder water-cooled wire conduit | |
| CN204174067U (en) | A kind of spiral tube water-cooled bubbler | |
| CN206943657U (en) | A kind of metal three-way pipe of hot extrusion molding | |
| CN209349470U (en) | Horizontal continuous casting of copper alloy converter device | |
| CN205891746U (en) | High temperature jar | |
| CN104120216B (en) | A kind of shower nozzle of RH vacuum refining top gun | |
| CN203971865U (en) | A kind of modified form conventional jacket container steam inlet nozzle arrangement | |
| CN203443341U (en) | Center pipe of reduction tank | |
| CN209664256U (en) | Pivot flange and crystallizer on a kind of modified | |
| CN209969552U (en) | Air blowing type ladle down nozzle | |
| CN104328245A (en) | Method for producing alloy steel with less than or equal to 0.002% of S without LF refining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20170415 |