CN202545168U - Replaceable elbow device of steelmaking vacuum pump pipe - Google Patents
Replaceable elbow device of steelmaking vacuum pump pipe Download PDFInfo
- Publication number
- CN202545168U CN202545168U CN2012200081931U CN201220008193U CN202545168U CN 202545168 U CN202545168 U CN 202545168U CN 2012200081931 U CN2012200081931 U CN 2012200081931U CN 201220008193 U CN201220008193 U CN 201220008193U CN 202545168 U CN202545168 U CN 202545168U
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- flange
- elbow
- vacuum
- vacuum pump
- pump pipe
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Abstract
The utility model relates to the field of ladle evacuation in steelmaking, in particular to a vacuum pump pipe. The replaceable elbow device of the steelmaking vacuum pump pipe comprises a fixed platform, a drive mechanism, a flange, a flange base and an elbow lining plate. The flange base is hermetically fixed at the periphery of an elbow part of the vacuum pump pipe. The elbow lining plate is disposed on the inner surface of the flange. The flange is disposed on the flange base. The flange is hermetically connected with the flange base through a seal gasket. One end of the drive mechanism is connected with the fixed platform through a lifting lug. The other end of the drive mechanism is connected with the flange through another lifting lug. The elbow lining plate of the replaceable elbow device can be taken out for wear checking and timely replacement during maintenance, leakage due to severe wear of the elbow part of the vacuum pump pipe is prevented, and efficiency of smelting high-quality fine steel is improved.
Description
Technical field
The utility model relates to that ladle vacuumizes the field in the steel-making, relates in particular to a kind of vacuum-pump line.
Background technique
The vacuum smelting process need satisfy the shortest vacuum processing time requirement and technology rhythm in the STEELMAKING PRODUCTION, makes abundant vacuum outgas of molten steel and purified treatment, greatly improves the degree of purity of molten steel, thereby produces high-quality product.Quality and degree of vacuum that molten steel is smelted have substantial connection, and degree of vacuum is good, the molten steel high purity.Therefore the vacuum system pipeline can not produce leakage, otherwise can't satisfy the vacuum smelting technological requirement.
Weld together with the pipeline of bleeding after the interior elbow of steel works ladle refining furnace vacuum pump system pump-line adopts steel plate to curl more both at home and abroad at present.As shown in Figure 1; In whole vacuum-pump line 1, vaccum treating apparatus is brought up to supersonic speed through the Laval nozzle 11 of vacuum pump with the jet velocity of working steam under the effect that vacuum pump continues to bleed; Utilize produced simultaneously pressure reduction; Make it to mix with the high-temp waste gas at suction port 12 places forming mixed gas, again through washing away the elbow 14 of pipeline after the 13 back deceleration superchargings of Diffuser throat, final stage suction booster band mixed gas and is washed away elbow 14 backs and get into the condensers cooling.In the whole vacuum system, vacuum-pump line 1 diameter greatly, highly high, steam flow is big and it is high to be taken out the mixed gas temperature, is corrosive; Minimum pressure reaches 120Pa, and the pressure that elbow directly receives pumped gas in this moment vacuum pipe washes away, and elbow is through after a while erosive wear; Make the elbow wash surface grind thinner and thinner, finally cause elbow worn out, vacuum pipe produces and leaks; Cause the vaccum treating apparatus exhaust capacity to descend, do not reach the required degree of vacuum of technology.
And existing large-scale vacuum equipment is striden distance, and is highly high, so vacuum pipe head bending device inside can't be checked; Steel-making vacuum equipment administrative staff can't understand the elbow abrasion condition in plant maintenance at ordinary times; Have only when elbow wearing and tearing generation external leaks, see the worn out leakage of elbow from the outside, just find the elbow serious wear; Vacuum equipment just can not normally move like this, influences rhythm of production.Need this moment elbow is repaired processing, cut off the elbow of former damage earlier, repair elbow through welding steel.The vacuum pipe elbow diameter is big, and repairing needs the long time.Because elbow is cambered surface, just can not use block plate welding, through two block plates splicing repairing, must guarantee after having repaired at last that the elbow do not have leakage.Use the splicing of two block plates will cause the central weld seam that forms like this, weld seam just is easy to cause wearing and tearing when vacuum equipment moves, and will soon damage has once more influenced production.
Summary of the invention
The utility model technical problem to be solved provides a kind of removable steel-making vacuum-pump line head bending device; The elbow liner plate of this device can take out when maintenance to be checked abrasion condition and in time changes the leakage accident that the elbow part of prevention vacuum-pump line takes place because of serious wear.
The utility model is achieved in that a kind of removable steel-making vacuum-pump line head bending device; Comprise fixed platform, driving mechanism, flange, flange base and elbow liner plate; Said flange base sealing and fixing is peripheral in the elbow of vacuum-pump line; Said elbow liner plate is installed on the internal surface of flange, and flange is installed on the flange base, links to each other through the seal ring sealing between flange and the flange base; One end of said driving mechanism links to each other with fixed platform through hanger, and the other end of driving mechanism links to each other with flange through hanger.
Link to each other through dovetail groove between said elbow liner plate and the flange.
Described driving mechanism is cylinder or oil hydraulic cylinder.
The removable steel-making vacuum-pump line of the utility model head bending device; The elbow liner plate of this device can take out when maintenance checks abrasion condition and replacing in time; The elbow part of prevention vacuum-pump line has improved the working efficiency of smelting HQ high quality elaboration steel because of the leakage accident that serious wear takes place.
Description of drawings
Fig. 1 is existing vacuum-pump line structural representation;
Fig. 2 is the removable steel-making vacuum-pump line of a utility model head bending device structural representation.
Among the figure: 1 vacuum-pump line, 11 Laval nozzles, 12 suction ports, 13 Diffuser throats, 14 elbows, 21 fixed platforms, 22 driving mechanisms, 23 flanges, 24 flange bases, 25 elbow liner plates, 26 seal rings, 27 hangers.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiments only to be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model statement, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 2; A kind of removable steel-making vacuum-pump line head bending device; Comprise fixed platform 21, driving mechanism 22, flange 23, flange base 24 and elbow liner plate 25; Said flange base 24 sealing and fixing are peripheral in the elbow of vacuum-pump line, and flange base 24 becomes as a whole through welding with vacuum-pump line in the present embodiment; Said elbow liner plate 25 is installed on the internal surface of flange 23; Flange 23 is installed on the flange base 24; Link to each other through seal ring 26 sealings between flange 23 and the flange base 24; Elbow liner plate 25 inner side surfaces just form the inwall of vacuum-pump line elbow like this, and elbow liner plate 25 forms a seal container with whole vacuum-pump line; One end of said driving mechanism 22 links to each other with fixed platform 21 through hanger 27, and the other end of driving mechanism 22 links to each other with flange 23 through hanger 27.Check vacuum pipe elbow abrasion condition quickly and easily;
Link to each other through dovetail groove between elbow liner plate 25 and the flange 23, it is just convenient to dismantle and install elbow liner plate 25 like this.
In the present embodiment; Described driving mechanism 22 is cylinder or oil hydraulic cylinder; Elbow liner plate 25 pulled out or pushed to the action of the output thick stick of cylinder or oil hydraulic cylinder can through flange 23; After pulling out elbow liner plate 25, so just check circular arc wear liner situation easily, and can in time change the circular arc liner plate of wearing and tearing.Steel-making vacuum equipment attendant is not when producing at ordinary times; The attendant removes the connecting bolt of flange 23; Utilize the driving mechanism 22 elbow liner plate 25 that stretched, check elbow liner plate 25 abrasion conditions, if find elbow liner plate 25 serious wear; Can pull down elbow liner plate 25, and reinstall new elbow liner plate 25.
Claims (3)
1. removable steel-making vacuum-pump line head bending device; It is characterized in that: comprise fixed platform (21), driving mechanism (22), flange (23), flange base (24) and elbow liner plate (25); Said flange base (24) sealing and fixing is peripheral in the elbow of vacuum-pump line; Said elbow liner plate (25) is installed on the internal surface of flange (23), and flange (23) is installed on the flange base (24), links to each other through seal ring (26) sealing between flange (23) and the flange base (24); One end of said driving mechanism (22) links to each other with fixed platform (21) through hanger (27), and the other end of driving mechanism (22) links to each other with flange (23) through hanger (27).
2. removable steel-making vacuum-pump line head bending device as claimed in claim 1 is characterized in that: link to each other through dovetail groove between said elbow liner plate (25) and the flange (23).
3. according to claim 1 or claim 2 removable steel-making vacuum-pump line head bending device, it is characterized in that: described driving mechanism (22) is cylinder or oil hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200081931U CN202545168U (en) | 2012-01-10 | 2012-01-10 | Replaceable elbow device of steelmaking vacuum pump pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200081931U CN202545168U (en) | 2012-01-10 | 2012-01-10 | Replaceable elbow device of steelmaking vacuum pump pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545168U true CN202545168U (en) | 2012-11-21 |
Family
ID=47165812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200081931U Expired - Fee Related CN202545168U (en) | 2012-01-10 | 2012-01-10 | Replaceable elbow device of steelmaking vacuum pump pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223951A (en) * | 2018-01-17 | 2018-06-29 | 山东钢铁集团日照有限公司 | A kind of replaceable vacuum wear-resistant bend device |
-
2012
- 2012-01-10 CN CN2012200081931U patent/CN202545168U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223951A (en) * | 2018-01-17 | 2018-06-29 | 山东钢铁集团日照有限公司 | A kind of replaceable vacuum wear-resistant bend device |
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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: 20121121 Termination date: 20160110 |