CN1325664C - Insert tube of vacuum circulating degasification apparatus - Google Patents
Insert tube of vacuum circulating degasification apparatus Download PDFInfo
- Publication number
- CN1325664C CN1325664C CNB2005100127126A CN200510012712A CN1325664C CN 1325664 C CN1325664 C CN 1325664C CN B2005100127126 A CNB2005100127126 A CN B2005100127126A CN 200510012712 A CN200510012712 A CN 200510012712A CN 1325664 C CN1325664 C CN 1325664C
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- steel cylinder
- brick layer
- hole
- fire brick
- steel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Treatment Of Steel In Its Molten State (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to an insert pipe of a vacuum circulating degasification device, which comprises a coupling flange, a steel cylinder, a refractory brick layer and a refractory cement sleeve, wherein the upper cylinder opening of the steel cylinder is welded with an opening of the coupling flange together. The refractory cement sleeve is coated outside the steel cylinder, and the refractory brick layer is arranged in the steel cylinder of which the inner side is provided with a through hole. The through hole downward passes through outside the refractory cement sleeve. The present invention is characterized in that the coupling flange is provided with a coupling flange with two openings, and the distance between the centers of the two openings corresponds or is equal to the centers of the two coupling openings below a vacuum chamber of the vacuum circulating degasification device. Each opening of the coupling flange with two openings is respectively welded with a steel cylinder, and the periphery of the through hole of the refractory brick layer of one of the steel cylinders is provided with stainless steel breather pipes from 6 to 12 for argon gas to enter. The insert pipe of a vacuum circulating degasification device has large circular flow and provides a positive factor for increasing steel output.
Description
Technical field
The present invention relates to a kind of insert tube of vacuum circulating degasification apparatus.
Background technology
Vacuum circulating degasification apparatus is that happy Hailaer, German Shandong company is in common design of nineteen fifty-seven and success of the test, be used for the dehydrogenation of molten steel, through the development of four more than ten years, vacuum circulating degasification apparatus has multinomial functions such as dehydrogenation, carbon, oxygen, sulphur, alloying, temperature control.Some iron and steel enterprises of the whole world generally use now.This circulating degasification apparatus has a vacuum chamber, and there are two tubular stingers the vacuum chamber below, and one is upcast, and one is downtake.Tubular stinger is inserted molten steel, vacuum chamber is vacuumized the back molten steel sucked vacuum chamber by siphon from upcast, in upcast, feed the inert argon gas again, therefore upcast is different with the density of molten steel in the downtake, molten steel just begins constantly to flow into vacuum chamber from upcast with certain speed, flows into ladle at vacuum chamber molten steel after treatment through downtake, and molten steel rises to vacuum chamber from upcast like this, flow back to ladle by vacuum chamber again, finish the decarburization deoxidation treatment through repeatedly circulating.Vacuum circulating degasification apparatus major equipment parameter is a circular flow, and promptly the unit time is by the molten steel amount in the vacuum chamber, and circular flow is very big to the yield effect of the quality of molten steel, molten steel, and the big more processing efficiency of circular flow is high more.The principal element of restriction circular flow is the interior diameter of tubular stinger.Along with metallurgy industry to high-quality, efficient improving constantly of requiring, also high more to the requirement of circular flow.Vacuum circulating degasification apparatus is since operation half a century, and two split type tubular stingers are continued to use to now always.Because vacuum circulating degasification apparatus is used to be provided with the restriction of the distance between the adapting pipe of tubular stinger, the spacing between two tubular stinger outside diameters is too little, can't enlarge interior diameter, and circular flow is less, becomes a factor of the raising of restriction output of steel.
Summary of the invention
In order to overcome the above-mentioned deficiency of existing vacuum circulating degasification apparatus, the invention provides the bigger vacuum circulation degassing tubular stinger of a kind of circular flow with the double hose tubular stinger.
At vacuum circulating degasification apparatus two of the space constraint of tubular stinger are set and the situation of the tubular stinger outside diameters inserted under because the wall thickness of tubular stinger is had certain requirement, adopt the pipe diameter of the tubular stinger of double hose not enlarge again.Technical scheme of the present invention is with a tubular stinger, and two non-intercommunicating pores arranged side by side are set in a pipe.
This insert tube of vacuum circulating degasification apparatus comprises mounting flange, steel cylinder, fire brick layer and refractory cements cover, nozzle is inwardly curved under the steel cylinder, the last nozzle and the mounting flange aperture of steel cylinder weld together, the refractory cements cover wraps in outside the steel cylinder, between the last end face of refractory cements cover and the mounting flange spacing is arranged, fire brick layer is arranged in the steel cylinder, the inboard of fire brick layer is a through hole, this through hole leads to downwards outside the refractory cements cover, it is characterized in that: said mounting flange is a diplopore mouth ring flange, and the distance between two connecting port centers under the distance between the center, two apertures and the vacuum circulating degasification apparatus vacuum chamber adapts and preferably equates; A steel cylinder is respectively being welded in each aperture of diplopore mouth ring flange, fire brick layer all is being set in each steel cylinder, refractory cements is locked and is enclosed within two steel cylinder outsides and bottom, and each fire brick layer all is being provided with a through hole that communicates up and down, and the diameter of the through hole of fire brick layer is greater than 350 millimeters.Therein around the through hole of the fire brick layer of a steel cylinder, the stainless steel ventpipe that is used to feed argon gas is being set, operated by rotary motion 6-12 root ventpipe, the outlet side of ventpipe laterally reaches the through hole of fire brick layer, inlet end under refractory cements cover and the diplopore mouth ring flange between be separated out and stretch out.
Insert tube of vacuum circulating degasification apparatus of the present invention with the existing tubular stinger of having used semicentennial two splits and together, just can two-layer refractory cements jacket wall adjacent between two tubular stingers be replaced with a refractory cements jacket wall, utilize the space enlargement through hole interior diameter of saving, the through-hole diameter of existing tubular stinger is 350 millimeters, the flow of molten iron is 45 tons/minute, total treatment time is 48 minutes, the through-hole diameter of tubular stinger of the present invention is 430 millimeters, 60 tons/minute of the flows of molten iron increase by 33%, and total treatment time is 44 minutes, shorten 9%, every work 24 hours, handling iron water amount increases by 230 tons, provides a favorable factor for increasing output of steel.
Description of drawings
Fig. 1 is an insert tube of vacuum circulating degasification apparatus vertical view of the present invention.
Fig. 2 is the sectional view along A-A line among Fig. 1.
Fig. 3 is the sectional view along B-B line among Fig. 2.
Fig. 4 is that insert tube of vacuum circulating degasification apparatus of the present invention is gone into two-tube split tubular stinger comparison diagram.
Fig. 5 is the installation plan of insert tube of vacuum circulating degasification apparatus of the present invention at vacuum chamber.
Among the above-mentioned figure:
1, ventpipe 2, port 3, diplopore mouth ring flange 4, aperture 5, steel cylinder
6, fire brick layer 7, through hole 8, aperture 9, steel cylinder 10, through hole
11, fire brick layer 12, air outlet 13, bottom surface 14, diplopore steel plate
15, outer side 16, refractory cements cover 17, bending ring 18, bending ring
19, the refractory cements cover end 20, refractory cements cover side 21, doubled via tubular stinger
22, tubular stinger 23, mounting flange 24, through hole 25, refractory cements cover
26, the cement sheath outside 27, the cement sheath outside 28, ring flange 29, fire brick layer
30, through hole 31, tubular stinger 32, refractory cements cover 33, connecting port
34, at the bottom of the connecting port 35, at the bottom of vacuum chamber housing 36, connecting port 37, the connecting port
38, connecting port ring flange 39, steel band 40, molten steel
Embodiment
Describe the embodiment of this insert tube of vacuum circulating degasification apparatus in detail below in conjunction with embodiment and accompanying drawing thereof, but the embodiment of insert tube of vacuum circulating degasification apparatus of the present invention is not limited to following embodiment.
Fig. 1, the insert tube of vacuum circulating degasification apparatus that Fig. 2 and Fig. 3 describe comprises mounting flange, steel cylinder, fire brick layer and refractory cements cover, nozzle is inwardly curved under the steel cylinder, the last nozzle and the mounting flange aperture of steel cylinder weld together, the refractory cements cover wraps in outside the steel cylinder, fire brick layer is arranged in the steel cylinder, the inboard of fire brick layer is a through hole, this through hole leads to downwards outside the refractory cements cover, it is characterized in that: said mounting flange be 3, two apertures 4 of diplopore mouth ring flange with 8 centers, aperture between distance and Fig. 5 in vacuum circulating degasification apparatus vacuum chamber housing 35 under two connecting ports 33 equate with distance between connecting port 36 centers.The last nozzle of steel cylinder 5 and steel cylinder 9 is welded on the aperture 4 and aperture 8 of diplopore mouth ring flange 3 respectively.The following nozzle of steel cylinder 5 and steel cylinder 9 bends inwards respectively, and embayment ring 18 encircles 17 with bending, fire brick layer 6 is being set in steel cylinder 5, fire brick layer 6 inboard through holes 7 for communicating up and down are being provided with fire brick layer 11 in steel cylinder 9, fire brick layer 11 inboard through holes 10 for communicating up and down.Refractory cements overlaps 16 and wraps in steel cylinder 5 with steel cylinder 10 sides and at the end, is the 150-300 millimeter apart between the diplopore steel plate 14 of refractory cements cover 16 and the bottom surface 13 of diplopore aperture ring flange 3.Through hole 7 and logical 10 leads to the refractory cements cover downwards at the end 19.Around the through hole 7 of the fire brick layer 6 outside steel cylinder 5, stainless steel ventpipe such as ventpipe 1 that eight uniform being used to feed argon gas are being set, wherein the air outlet of four ventpipes communicates with through hole 7 at the middle part of fire brick layer 6, the bottom that air outlet 12 ends of other four ventpipes such as ventpipe 1 laterally reach fire brick layer 6 communicates with through hole 7, inlet end under refractory cements cover 16 and the diplopore mouth ring flange 3 between be separated out and stretch out.
The doubled via tubular stinger 21 of insert tube of vacuum circulating degasification apparatus of the present invention, Fig. 4 is seen in the contrast of it and existing tubular stinger 22 and tubular stinger 31, for the ease of contrast, doubled via tubular stinger 21 of the present invention is placed on two existing tubular stingers arranged side by side 22 and the tubular stinger 31.Because the connecting port 33 of the vacuum chamber housing 35 of vacuum circulating degasification apparatus and the restriction of the distance between the connecting port 36, in order to cooperate with connecting port 36, can't increase distance and the diameter of through hole 24 between tubular stinger 22 and the tubular stinger 31 with through hole 30 with connecting port 33.Can find out that from the contrast of Fig. 4 obviously the through hole 24 than existing tubular stinger such as tubular stinger 22 is big with through hole 10 for the through hole 7 of tubular stinger of the present invention.The through hole 7 of doubled via tubular stinger 21 of the present invention all is 430 millimeters with the diameter of through hole 10, and the through hole 24 of existing tubular stinger 22 and tubular stinger 31 is 350 millimeters with the diameter of through hole 30.
Vacuum circulating degasification apparatus is seen Fig. 5 with doubled via tubular stinger 21 in the installation of vacuum chamber housing 35,38 pairs on the connecting port ring flange of the diplopore mouth ring flange 3 of this doubled via tubular stinger 21 and connecting port 33 and connecting port 36 together, and encase with steel band 39 and to weld together, again steel band 39 is cut after handling.
Claims (1)
1, a kind of insert tube of vacuum circulating degasification apparatus, it comprises mounting flange, steel cylinder, fire brick layer and refractory cements cover, nozzle is inwardly curved under the steel cylinder, the last nozzle and the mounting flange aperture of steel cylinder weld together, the refractory cements cover wraps in outside the steel cylinder, between the last end face of refractory cements cover and the mounting flange spacing is arranged, fire brick layer is arranged in the steel cylinder, the inboard of fire brick layer is a through hole, this through hole leads to downwards outside the refractory cements cover, it is characterized in that: said mounting flange is a diplopore mouth ring flange, and the distance between two connecting port centers under the distance between the center, two apertures and the vacuum circulating degasification apparatus vacuum chamber adapts or equates; A steel cylinder is respectively being welded in each aperture of diplopore mouth ring flange, fire brick layer all is being set in each steel cylinder, refractory cements is locked and is enclosed within two steel cylinder outsides and bottom, and each fire brick layer all is being provided with a through hole that communicates up and down, and the diameter of the through hole of fire brick layer is greater than 350 millimeters; Around the through hole of the fire brick layer of a steel cylinder, the stainless steel ventpipe that the 6-12 root is used to feed argon gas is being set therein, the outlet side of ventpipe laterally reaches the through hole of fire brick layer, inlet end under refractory cements cover and the diplopore mouth ring flange between be separated out and stretch out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100127126A CN1325664C (en) | 2005-07-29 | 2005-07-29 | Insert tube of vacuum circulating degasification apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100127126A CN1325664C (en) | 2005-07-29 | 2005-07-29 | Insert tube of vacuum circulating degasification apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1730675A CN1730675A (en) | 2006-02-08 |
| CN1325664C true CN1325664C (en) | 2007-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100127126A Expired - Fee Related CN1325664C (en) | 2005-07-29 | 2005-07-29 | Insert tube of vacuum circulating degasification apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN1325664C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748246B (en) * | 2008-12-15 | 2012-02-01 | 鞍钢股份有限公司 | Method for improving service life of insert tube of vacuum degassing furnace |
| CN102296159B (en) * | 2010-06-25 | 2013-05-01 | 鞍钢股份有限公司 | Handling method for blockage of insertion tube |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1084310A1 (en) * | 1983-01-17 | 1984-04-07 | Московский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Институт Стали И Сплавов | Apparatus for circulatory vacuum treatment of metal |
| RU2002817C1 (en) * | 1992-07-08 | 1993-11-15 | Московский институт стали и сплавов | Method of iterative vacuum processing of molten metal and device for its implementation |
| JP2000008117A (en) * | 1998-06-18 | 2000-01-11 | Nippon Steel Corp | High efficiency vacuum refining |
| JP2001073025A (en) * | 1999-08-31 | 2001-03-21 | Sumitomo Metal Ind Ltd | Method for reforming slag in ladle |
| JP2002363636A (en) * | 2001-06-13 | 2002-12-18 | Nkk Corp | Method for smelting molten steel in rh vacuum degassing apparatus |
| CN2808927Y (en) * | 2005-07-29 | 2006-08-23 | 太原钢铁(集团)有限公司 | inset tube for vacuum cyclic degasification device |
-
2005
- 2005-07-29 CN CNB2005100127126A patent/CN1325664C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1084310A1 (en) * | 1983-01-17 | 1984-04-07 | Московский Ордена Октябрьской Революции И Ордена Трудового Красного Знамени Институт Стали И Сплавов | Apparatus for circulatory vacuum treatment of metal |
| RU2002817C1 (en) * | 1992-07-08 | 1993-11-15 | Московский институт стали и сплавов | Method of iterative vacuum processing of molten metal and device for its implementation |
| JP2000008117A (en) * | 1998-06-18 | 2000-01-11 | Nippon Steel Corp | High efficiency vacuum refining |
| JP2001073025A (en) * | 1999-08-31 | 2001-03-21 | Sumitomo Metal Ind Ltd | Method for reforming slag in ladle |
| JP2002363636A (en) * | 2001-06-13 | 2002-12-18 | Nkk Corp | Method for smelting molten steel in rh vacuum degassing apparatus |
| CN2808927Y (en) * | 2005-07-29 | 2006-08-23 | 太原钢铁(集团)有限公司 | inset tube for vacuum cyclic degasification device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1730675A (en) | 2006-02-08 |
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| 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 | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANXI TAIGANG STAINLESS STEEL CO., LTD. Free format text: FORMER OWNER: TAIYUAN IRON AND STEEL (GROUP) CO LTD Effective date: 20070629 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20070629 Address after: 030003 No. 2 lawn street, Taiyuan, Shanxi Patentee after: Shanxi Taigang Stainless Steel Co., Ltd. Address before: 030003 No. 2, sharp lawn, Taiyuan City, Shanxi Province Patentee before: Taiyuan Iron & Steel (Group) Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20100729 |