CN103509913A - Argon-blowing oxygen-blowing molten steel refining apparatus with vacuum cap - Google Patents
Argon-blowing oxygen-blowing molten steel refining apparatus with vacuum cap Download PDFInfo
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- CN103509913A CN103509913A CN201310395644.0A CN201310395644A CN103509913A CN 103509913 A CN103509913 A CN 103509913A CN 201310395644 A CN201310395644 A CN 201310395644A CN 103509913 A CN103509913 A CN 103509913A
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Abstract
A disclosed argon-blowing oxygen-blowing molten steel refining apparatus with a vacuum cap comprises a ladle for bearing molten steel, and a vacuum cap arranged above the ladle and capable of freely rising and falling. When the apparatus is working, the vacuum dipping cap falls into the ladle, and a narrow enclosed space is formed between the vacuum dipping cover and the liquid surface of the molten steel. The top of the vacuum dipping cap is connected with an inclined pipe on which an extraction opening is arranged, and the end of the inclined pipe is connected with a feeding system. The vacuum dipping cap is reconstructed from a dipping cap and connected with a miniature mechanical vacuum pump, so that the narrow space obtains vacuum degree, and various refining on molten steel under vacuum are finished.
Description
Technical field
The present invention relates to vacuum refining device, be specifically related to a kind of vacuum (-tight) housing Argon oxygen blast refined molten steel device.
Background technology
Sealed argon-blowing oxygen blast regulates composition device (CAS-OB), is one of external refining equipment of large-scale iron and steel enterprise use always.
But it does not have vacuum metling function, therefore can not effectively bring into play vacuum-oxygen decarbonizing effect; If need to smelt function, must use high-power vacuum pump, will treat that smelting device is evacuated, but so, will expend large energy, greatly increase smelting cost.
Summary of the invention
The object of this invention is to provide a kind of reliable working performance, cost is low, stable, the vacuum (-tight) housing Argon oxygen blast refined molten steel device (VCAS-OB) that efficiency is high, impregnating cover is transformed into into vacuum impregnating cover, it is connected with small-sized machine vacuum pump, at narrow space, obtains vacuum tightness, complete the various refinings to molten steel under vacuum.
For achieving the above object, technical scheme of the present invention is as follows:
An Argon oxygen blast refined molten steel device, comprising:
One for carrying the ladle of molten steel,
One arranges ladle top, and the vacuum impregnation cover of free lifting, and during work, vacuum impregnation cover declines and enters in ladle, makes to form between vacuum impregnation cover and molten steel liquid level a narrow and small enclosed space.
In a preferred embodiment of the invention, described vacuum impregnation cover top connects a tilted tube, and a bleeding point is set on the pipe shaft of described tilted tube, and the end of tilted tube connects a feed system.
In a preferred embodiment of the invention, described bleeding point connects a vacuum pump by a pump-line.
In a preferred embodiment of the invention, also comprise an oxygen lance lifting system, described oxygen lance lifting system comprises a vertical oxygen rifle inserting in vacuum impregnation cover, and described oxygen rifle connects an oxygen supply device.
In a preferred embodiment of the invention, at ladle downside, one argon gas import is also set, argon gas enters in molten steel by argon gas import.
By technique scheme, the invention has the beneficial effects as follows:
1, use vacuum impregnation cover to form narrow and small enclosed space.
2, use small-sized water ring oil-sealed rotary pump, vacuum system is simple.
3, the refining such as vacuum argon blowing, oxygen blast, decarburization, intensification.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below.
Fig. 1 is structural representation of the present invention.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
With reference to Fig. 1, a kind of vacuum (-tight) housing Argon oxygen blast refined molten steel device (VCAS-OB), this system is comprised of ladle 1, vacuum impregnation cover 2, impregnating cover jacking system 3, feed system 4, oxygen lance lifting system 5, vacuum pump 6, pump-line 7 etc.
Vacuum impregnation cover 2, by 3 operations of impregnating cover jacking system, makes vacuum impregnation cover 2 free lifting in the vertical direction.
Vacuum impregnation cover 2 tops connect a tilted tube 9, and a bleeding point 901 is set on the pipe shaft of described tilted tube 9, and the end of tilted tube 9 connects a feed system 4, and bleeding point 901 connects a vacuum pump 6 by a pump-line 7.Its intermediate pump 6 includes venting port 601, water-in 602 and water return outlet 603.
Also comprise an oxygen lance lifting system 5, oxygen lance lifting system 5 comprises a vertical oxygen rifle 8 inserting in vacuum impregnation cover, and described oxygen rifle 8 connects an oxygen supply device.
At ladle 1 downside, one argon gas import 101 is also set, argon gas enters in molten steel by argon gas import 101.
Refining process is as follows:
Vacuum impregnation covers under the drive of jacking system, inserts certain depth in the ladle have molten steel, makes to form between vacuum impregnation cover and molten steel liquid level a narrow and small enclosed space.Start vacuum pump, this narrow and small enclosed space is evacuated to 26kPa, and keep.The molten steel of enclosed space is carried out to Argon stirring, even molten steel temperature, composition; Cleaning molten steel;
Can prevent that molten steel is air-breathing; Can finely tune composition by vacuum charging; Can vacuum oxygen, make itself and reactive aluminum, carry out chemical heating; Can carry out vacuum-oxygen decarbonizing, reach vacuum refinement object.
VCAS-OB compares with CAS-OB, and the former has expanded the latter's function, especially has vacuum refinement function.
VCAS-OB compares with VOD, there is equally vacuum decarburization function, but the former vacuum space is little a lot, can use small-sized machine vacuum pump, can effectively reduce energy consumption, reduce the off-set facility of general Steam Ejector System, as built boiler house, cold water pump house, hot water pump house, steam-pipe, cooling water pipeline, high vacuum pump house etc.The cost of investment of VCAS-OB is lower.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification sheets, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. a vacuum (-tight) housing Argon oxygen blast refined molten steel device, is characterized in that, comprising:
One for carrying the ladle of molten steel,
One arranges ladle top, and the vacuum impregnation cover of free lifting, and during work, vacuum impregnation cover declines and enters in ladle, makes to form between vacuum impregnation cover and molten steel liquid level a narrow and small enclosed space.
2. a kind of vacuum (-tight) housing Argon oxygen blast refined molten steel device according to claim 1, it is characterized in that: described vacuum impregnation cover top connects a tilted tube, one bleeding point is set on the pipe shaft of described tilted tube, and the end of tilted tube connects a feed system.
3. a kind of vacuum (-tight) housing Argon oxygen blast refined molten steel device according to claim 2, is characterized in that: described bleeding point connects a vacuum pump by a pump-line.
4. a kind of vacuum (-tight) housing Argon oxygen blast refined molten steel device according to claim 1, it is characterized in that: also comprise an oxygen lance lifting system, described oxygen lance lifting system comprises a vertical oxygen rifle inserting in vacuum impregnation cover, and described oxygen rifle connects an oxygen supply device.
5. a kind of vacuum (-tight) housing Argon oxygen blast refined molten steel device according to claim 1, is characterized in that: at ladle downside, one argon gas import is also set, argon gas enters in molten steel by argon gas import.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310395644.0A CN103509913A (en) | 2013-09-03 | 2013-09-03 | Argon-blowing oxygen-blowing molten steel refining apparatus with vacuum cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310395644.0A CN103509913A (en) | 2013-09-03 | 2013-09-03 | Argon-blowing oxygen-blowing molten steel refining apparatus with vacuum cap |
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| CN103509913A true CN103509913A (en) | 2014-01-15 |
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| CN201310395644.0A Pending CN103509913A (en) | 2013-09-03 | 2013-09-03 | Argon-blowing oxygen-blowing molten steel refining apparatus with vacuum cap |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862013A (en) * | 2014-03-25 | 2014-06-18 | 莱芜钢铁集团有限公司 | Refining cover for continuous casting tundish and manufacturing method of refining cover |
| CN103862014A (en) * | 2014-03-25 | 2014-06-18 | 莱芜钢铁集团有限公司 | Refining device and method for removing liquid steel inclusions in continuous casting tundish |
| CN105624367A (en) * | 2014-12-01 | 2016-06-01 | 鞍钢股份有限公司 | Refining device and method for controlling nitrogen content of molten steel |
| CN105714023A (en) * | 2014-12-01 | 2016-06-29 | 鞍钢股份有限公司 | Low-silicon aluminum killed steel refining device and method |
| CN106702082A (en) * | 2015-11-17 | 2017-05-24 | 鞍钢股份有限公司 | Method for increasing use times of dipping hood of ANS refining furnace |
| CN106811575A (en) * | 2015-12-02 | 2017-06-09 | 鞍钢股份有限公司 | Device for improving yield of aluminum after converter and using method |
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| JPH08109410A (en) * | 1994-10-14 | 1996-04-30 | Nippon Steel Corp | Finishing decarburization refining method for stainless steel |
| WO1997005291A1 (en) * | 1995-08-01 | 1997-02-13 | Nippon Steel Corporation | Process for vacuum refining of molten steel |
| CN2432219Y (en) * | 2000-06-09 | 2001-05-30 | 北京科技大学 | Multifunctional multiple blowing single nozzle refining furnace |
| CN203419950U (en) * | 2013-09-03 | 2014-02-05 | 西安前沿重型工业工程技术有限公司 | Argon blowing/oxygen blowing liquid steel refining device with vacuum enclosure |
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2013
- 2013-09-03 CN CN201310395644.0A patent/CN103509913A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08109410A (en) * | 1994-10-14 | 1996-04-30 | Nippon Steel Corp | Finishing decarburization refining method for stainless steel |
| WO1997005291A1 (en) * | 1995-08-01 | 1997-02-13 | Nippon Steel Corporation | Process for vacuum refining of molten steel |
| CN2432219Y (en) * | 2000-06-09 | 2001-05-30 | 北京科技大学 | Multifunctional multiple blowing single nozzle refining furnace |
| CN203419950U (en) * | 2013-09-03 | 2014-02-05 | 西安前沿重型工业工程技术有限公司 | Argon blowing/oxygen blowing liquid steel refining device with vacuum enclosure |
Non-Patent Citations (2)
| Title |
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| 冯聚和等: "《铁水预处理与钢水炉外精炼》", 30 June 2006, article "CAS-OB", pages: 151-154 * |
| 段建平等: "80t单嘴真空精炼装置脱碳工艺试验研究", 《钢铁》, vol. 46, no. 7, 31 July 2011 (2011-07-31), pages 21 - 25 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103862013A (en) * | 2014-03-25 | 2014-06-18 | 莱芜钢铁集团有限公司 | Refining cover for continuous casting tundish and manufacturing method of refining cover |
| CN103862014A (en) * | 2014-03-25 | 2014-06-18 | 莱芜钢铁集团有限公司 | Refining device and method for removing liquid steel inclusions in continuous casting tundish |
| CN103862014B (en) * | 2014-03-25 | 2016-10-12 | 莱芜钢铁集团有限公司 | The purifier of a kind of molten steel inclusion in removing continuous casting production and method of refining |
| CN105624367A (en) * | 2014-12-01 | 2016-06-01 | 鞍钢股份有限公司 | Refining device and method for controlling nitrogen content of molten steel |
| CN105714023A (en) * | 2014-12-01 | 2016-06-29 | 鞍钢股份有限公司 | Low-silicon aluminum killed steel refining device and method |
| CN105624367B (en) * | 2014-12-01 | 2017-07-21 | 鞍钢股份有限公司 | Refining device and method for controlling nitrogen content of molten steel |
| CN105714023B (en) * | 2014-12-01 | 2017-09-08 | 鞍钢股份有限公司 | Low-silicon aluminum killed steel refining device and method |
| CN106702082A (en) * | 2015-11-17 | 2017-05-24 | 鞍钢股份有限公司 | Method for increasing use times of dipping hood of ANS refining furnace |
| CN106702082B (en) * | 2015-11-17 | 2018-06-26 | 鞍钢股份有限公司 | Method for increasing use times of dipping hood of ANS refining furnace |
| CN106811575A (en) * | 2015-12-02 | 2017-06-09 | 鞍钢股份有限公司 | Device for improving yield of aluminum after converter and using method |
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Application publication date: 20140115 |