CN202226878U - Vacuum pumping device for vacuum melting - Google Patents
Vacuum pumping device for vacuum melting Download PDFInfo
- Publication number
- CN202226878U CN202226878U CN2011203426027U CN201120342602U CN202226878U CN 202226878 U CN202226878 U CN 202226878U CN 2011203426027 U CN2011203426027 U CN 2011203426027U CN 201120342602 U CN201120342602 U CN 201120342602U CN 202226878 U CN202226878 U CN 202226878U
- Authority
- CN
- China
- Prior art keywords
- vacuum
- water
- pump
- vacuum pump
- ring
- 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 - Lifetime
Links
Images
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a vacuum pumping device for vacuum melting, which comprises a vacuum pumping pipeline (1), wherein one end of the vacuum pumping pipeline is connected with a vacuum cover for the vacuum melting, and the other end of vacuum pumping pipeline is connected with a mechanical vacuum pump (5). The vacuum pumping device for the vacuum melting is characterized in that a water-ring vacuum pump (6) is arranged in a vacuum pumping system, and a filtering cleaning device (7) and/or a water cooling device (4) are/is arranged on the water-ring vacuum pump (6). The water-ring vacuum pump can remove dust in smoke and cool the smoke, thereby guaranteeing efficiency and service life of a dry mechanical vacuum pump. Furthermore, the water-ring vacuum pump has a function of forvacuum so that time for achieving requirements for vacuum degree is shortened.
Description
Technical field
The utility model belongs to the technical field that the steel-making refining vacuumizes, particularly a kind of mechanical type pumped vacuum systems with water-ring vacuum pump.
Background technology
Vacuum metling is the important step of STEELMAKING PRODUCTION, helps reducing the objectionable constituent content in the molten steel, and the control liquid steel temperature further improves steel quality.The vacuum metling system comprises RH (vacuum circulation degassing refining furnace), VD (vacuum decarburization stove), VOD (vacuum-oxygen decarbonizing stove) etc., and its pumped vacuum systems comprises utilizes two types of vapor jet pump pumped vacuum systems and dry type machinery pumped vacuum systems.
When utilizing Steam Ejector System to vacuumize, efficiency of energy utilization is lower, and complicated water-cooled, steam, the grain slag system of necessary auxiliary construction, and construction cost and working cost are all higher.
When utilizing the dry type mechanical pump to vacuumize, the working efficiency of mechanical pump improves greatly, and control is convenient, and working cost reduces greatly.But when adopting mechanical pump to vacuumize, the temperature of flue gas and dust-laden all to the working efficiency of mechanical vacuum pumping pump with material impact is arranged, so extra dedusting and refrigerating unit of being provided with of need work-ing life.
Summary of the invention
The purpose of the utility model provides a kind of vacuum metling vacuum extractor that can adapt to dust-laden and high-temperature flue gas in the steelmaking process.
To achieve these goals; Adopt following technical scheme: a kind of vacuum extractor of vacuum metling; Comprise the vacuum-pumping pipeline that an end is connected with the vacuum (-tight) housing of vacuum metling; The other end of vacuum-pumping pipeline links to each other with oil-sealed rotary pump, it is characterized in that: be provided with water-ring vacuum pump in the said pumped vacuum systems.
The minimal pressure that water-ring vacuum pump can be realized is the saturated vapor pressure of water-ring vacuum pump medium, and temperature is high more, and the vacuum tightness that can reach is low more, and in order to guarantee vacuum tightness, water-ring vacuum pump is provided with water cooling plant.
To the removing of impurity in the water-ring vacuum pump, water-ring vacuum pump is provided with the filtration washing unit for ease.
For dedusting and/or reduction flue-gas temperature, said vacuum-pumping pipeline is provided with water cooler and/or fly-ash separator.
The utility model can play dedusting and refrigerative effect to flue gas through the water-ring vacuum pump that is provided with, thereby guarantees the efficient and the life-span of dry type oil-sealed rotary pump, and water-ring vacuum pump has the forvacuum effect, shortens the time that reaches the vacuum tightness requirement.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure, part 1-vacuum-pumping pipeline; Part 2-water cooler; Part 3-fly-ash separator; Part 4-water cooling plant; Part 5-oil-sealed rotary pump; Part 6-water-ring vacuum pump; Part 7-filters washing unit.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:
As shown in Figure 1, the vacuum extractor of a kind of vacuum metling system, vacuum-pumping pipeline 1 is connected with the vacuum (-tight) housing of vacuum metling, is connected with water cooler 2, fly-ash separator 3, water-ring vacuum pump 6 and oil-sealed rotary pump 5 then in turn.The mechanical type vacuum pump 5 that adopts in the present embodiment is mechanical type vacuum pump group.
Water-ring vacuum pump 6 is provided with water-cooling system 4 and filters washing unit 7, and water-cooling system 4 is taken away the heat that the water in the water-ring vacuum pump is absorbed from flue gas, keeps the temperature of working medium in the water-ring vacuum pump 6.Filter washing unit 7 and utilize recoil water to discharge grit, be used for removing the grit of water-ring vacuum pump 6.
Medium in the water-ring vacuum pump can be water or other non-flammable low boiling point working mediums.
When dustiness is higher in the flue gas, when flue-gas temperature is higher, the fly-ash separator 3 and the water cooler 2 that before water-ring vacuum pump, are provided with can be strengthened dust separating effect and low flue-gas temperature respectively.
The utility model is through being provided with water-ring vacuum pump in the mechanical type pumped vacuum systems; Principle of work according to water-ring vacuum pump; Flue gas is drawn into after the water-ring vacuum pump; By the water cooling in the water-ring vacuum pump, the grit in the flue gas gets in the water under action of centrifugal force, has played cooling and dust separating effect simultaneously.And because the forvacuum ability of water-circulation type vacuum pumping pump can also shorten the time that reaches vacuum tightness.
The utility model not only is applicable to vacuum metling, also can be used for the processing that vacuumizes of other industry.
Claims (3)
1. the vacuum extractor of a vacuum metling; Comprise the vacuum-pumping pipeline (1) that an end is connected with the vacuum (-tight) housing of vacuum metling; The other end of vacuum-pumping pipeline (1) links to each other with oil-sealed rotary pump (5), it is characterized in that: be provided with water-ring vacuum pump (6) in the said pumped vacuum systems.
2. the vacuum extractor of vacuum metling as claimed in claim 1 is characterized in that: said water-ring vacuum pump (6) is provided with and filters washing unit (7) and/or water cooling plant (4).
3. according to claim 1 or claim 2 the vacuum extractor of vacuum metling, it is characterized in that: said vacuum-pumping pipeline (1) is provided with water cooler (2) and/or fly-ash separator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203426027U CN202226878U (en) | 2011-09-14 | 2011-09-14 | Vacuum pumping device for vacuum melting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203426027U CN202226878U (en) | 2011-09-14 | 2011-09-14 | Vacuum pumping device for vacuum melting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202226878U true CN202226878U (en) | 2012-05-23 |
Family
ID=46077476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203426027U Expired - Lifetime CN202226878U (en) | 2011-09-14 | 2011-09-14 | Vacuum pumping device for vacuum melting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202226878U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451377A (en) * | 2013-08-31 | 2013-12-18 | 济钢集团有限公司 | Amorphous parent metal smelting method and amorphous parent metal smelting device |
| CN103820604A (en) * | 2014-01-27 | 2014-05-28 | 上海零澜机械科技有限公司 | Vacuum pumping system for vacuum degassing smelting furnaces |
-
2011
- 2011-09-14 CN CN2011203426027U patent/CN202226878U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451377A (en) * | 2013-08-31 | 2013-12-18 | 济钢集团有限公司 | Amorphous parent metal smelting method and amorphous parent metal smelting device |
| CN103451377B (en) * | 2013-08-31 | 2015-06-24 | 济钢集团有限公司 | Amorphous parent metal smelting method and amorphous parent metal smelting device |
| CN103820604A (en) * | 2014-01-27 | 2014-05-28 | 上海零澜机械科技有限公司 | Vacuum pumping system for vacuum degassing smelting furnaces |
| CN103820604B (en) * | 2014-01-27 | 2018-08-17 | 上海伊莱茨真空技术有限公司 | A kind of pumped vacuum systems for vacuum outgas smelting furnace |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102424868B (en) | Blast furnace smelting slag water quenching waste steam waste heat recovery system | |
| CN102888473B (en) | Blast furnace slag granulation and waste heat recovery device | |
| JP2015511172A (en) | Waste gas purification method and equipment in steel vacuum treatment process | |
| CN202865257U (en) | Double-station mechanical vacuumizing RH liquid steel refining device | |
| CN202226878U (en) | Vacuum pumping device for vacuum melting | |
| CN201665699U (en) | Vacuum air removing machine for on-line air removing of aluminum solution | |
| CN107326151A (en) | A kind of vacuum refining of liquid steel is with changeable mechanical pump air extractor | |
| CN103438705B (en) | A kind of vacuum metling equipment and application | |
| CN201409440Y (en) | Vacuum cooling system | |
| CN103820604B (en) | A kind of pumped vacuum systems for vacuum outgas smelting furnace | |
| CN204125482U (en) | The dry vacuum set of pumps of vacuum degassing refining furnace | |
| CN203768397U (en) | Vacuumizing system for vacuum degassing and smelting furnace | |
| CN105605721A (en) | Device for utilizing exhaust gas in hot working workshop | |
| CN105483330B (en) | A kind of vacuum system and its control method for vacuum outgas smelting furnace | |
| CN203187702U (en) | Water cooling system | |
| CN204714841U (en) | A kind of novel converter cooling and dedusting device | |
| CN203602697U (en) | Self-propelled full-automatic pneumatic slagging machine | |
| CN203273271U (en) | Condensate water removing device of steam heating equipment | |
| CN213912419U (en) | Be used for vacuum cycle solvent recovery system | |
| CN211715296U (en) | Compressed air station and industrial furnace | |
| CN203869008U (en) | Centrifugal rotational flow steam waste heat boiler | |
| CN204943494U (en) | Full-automatic energy-saving environment-friendly high-efficiency picks grey Cremation Machine | |
| CN215428023U (en) | Recovery dust collector of metallurgical stove excessive flue gas | |
| CN219637302U (en) | Gold refining system | |
| CN203183730U (en) | Smoke cooling dust remover |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120523 |
|
| CX01 | Expiry of patent term |