CN216741994U - Large-scale vacuum system for vacuum degassing smelting furnace - Google Patents
Large-scale vacuum system for vacuum degassing smelting furnace Download PDFInfo
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- CN216741994U CN216741994U CN202123312832.1U CN202123312832U CN216741994U CN 216741994 U CN216741994 U CN 216741994U CN 202123312832 U CN202123312832 U CN 202123312832U CN 216741994 U CN216741994 U CN 216741994U
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- air extraction
- stage air
- vacuum
- bleeding
- stage
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- 238000009849 vacuum degassing Methods 0.000 title claims abstract description 15
- 238000003723 Smelting Methods 0.000 title claims abstract description 13
- 238000000605 extraction Methods 0.000 claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims abstract description 15
- 238000007670 refining Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000000740 bleeding effect Effects 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 5
- 238000005086 pumping Methods 0.000 description 18
- 239000007789 gas Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model relates to the field of vacuum systems, in particular to a large-scale vacuum system for a vacuum degassing smelting furnace. The vacuum system comprises a molten steel refining furnace, a dust removal mechanism, a first-stage air extraction part, a second-stage air extraction part, a third-stage air extraction part and a steam-water separator, wherein the molten steel refining furnace, the dust removal mechanism, the first-stage air extraction part, the second-stage air extraction part, the third-stage air extraction part and the steam-water separator are connected in series, and the first-stage air extraction part, the second-stage air extraction part and the third-stage air extraction part are all composed of a plurality of air extraction air circuits. The utility model efficiently exhausts the molten steel refining furnace through the primary air exhaust part, the secondary air exhaust part and the tertiary air exhaust part which are composed of a plurality of air exhaust gas circuits, thereby improving the vacuum degree and the air exhaust amount of a vacuum system.
Description
Technical Field
The utility model relates to the field of vacuum systems, in particular to a large-scale vacuum system for a vacuum degassing smelting furnace.
Background
In steel in a molten steel refining furnace, gases [ H ], [ O ], [ C ] and [ N ] are removed from the steel by a vacuum degassing technique. However, the vacuum degree and the air extraction amount of the existing vacuum degassing system cannot efficiently remove a large amount of gas in refined steel.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: to solve the technical problems described in the background art, the present invention provides a large-scale vacuum system for a vacuum degassing smelting furnace. The molten steel refining furnace is efficiently pumped through the first-stage air pumping part, the second-stage air pumping part and the third-stage air pumping part which are composed of a plurality of air pumping air circuits, so that the vacuum degree and the air pumping quantity of a vacuum system are improved.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a large-scale vacuum system for vacuum degassing smelting furnace, includes molten steel refining furnace, dust removal mechanism, one-level portion of bleeding, second grade portion of bleeding, tertiary portion of bleeding, catch water, molten steel refining furnace, dust removal mechanism, one-level portion of bleeding, second grade portion of bleeding, tertiary portion of bleeding, catch water establish ties together, and one-level portion of bleeding, second grade portion of bleeding, tertiary portion of bleeding are constituteed by several gas circuits of bleeding.
Specifically, the first-stage air extraction part consists of six first-stage air extraction pipelines, and a first valve and a first two roots vacuum pumps are sequentially connected in series on each first-stage air extraction pipeline.
Specifically, the second-stage air exhaust part comprises four second-stage air exhaust pipelines, wherein a second valve and a second Roots vacuum pump are sequentially connected in series on the three second-stage air exhaust pipelines, and a bypass valve is connected on the fourth second-stage air exhaust pipeline.
Specifically, the three-stage air extraction part consists of three-stage air extraction pipelines, and a valve III and a liquid ring vacuum pump are sequentially connected in series on each three-stage air extraction pipeline.
Specifically, the dust removal mechanism is a bag-type dust remover.
The utility model has the beneficial effects that: the utility model provides a large-scale vacuum system for a vacuum degassing smelting furnace. The molten steel refining furnace is efficiently pumped through the first-stage air pumping part, the second-stage air pumping part and the third-stage air pumping part which are composed of a plurality of air pumping air circuits, so that the vacuum degree and the air pumping quantity of a vacuum system are improved.
Drawings
The utility model is further illustrated by the following examples in conjunction with the drawings.
FIG. 1 is a schematic structural view of the present invention;
in the figure, 1, a molten steel refining furnace, 2, a dust removal mechanism, 3, a first-stage air extraction part, 4, a second-stage air extraction part, 5, a third-stage air extraction part, 6, a steam-water separator, 31, a first valve, 32, a first Roots vacuum pump, 41, a second valve, 42, a second Roots vacuum pump, 43, a bypass valve, 51, a third valve, 52 and a liquid ring vacuum pump are arranged.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Fig. 1 is a schematic structural view of the present invention.
As shown in the attached figure 1, a large-scale vacuum system for vacuum degassing smelting furnace comprises a molten steel refining furnace 1, a dust removal mechanism 2, a first-stage air extraction part 3, a second-stage air extraction part 4, a third-stage air extraction part 5 and a steam-water separator 6, wherein the molten steel refining furnace 1, the dust removal mechanism 2, the first-stage air extraction part 3, the second-stage air extraction part 4, the third-stage air extraction part 5 and the steam-water separator 6 are connected in series, and the first-stage air extraction part 3, the second-stage air extraction part 4 and the third-stage air extraction part 5 are composed of a plurality of air extraction paths.
The first-stage air extraction part 3 consists of six first-stage air extraction pipelines, and a first valve 31 and a first two Roots vacuum pumps 32 are sequentially connected in series on each first-stage air extraction pipeline.
The second-stage air extraction part 4 consists of four second-stage air extraction pipelines, wherein a second valve 41 and a second Roots vacuum pump 42 are sequentially connected in series on the three second-stage air extraction pipelines, and a bypass valve 43 is connected on the fourth second-stage air extraction pipeline.
When the second roots vacuum pump 42 is started, the bypass valve 43 is in a closed state. When the second roots vacuum pump 42 stops working, the bypass valve 43 is opened, and the gas in the first-stage pumping part 3 can directly enter the third-stage pumping part 5.
The three-stage air extraction part 5 consists of three stages of air extraction pipelines, and each three stage of air extraction pipeline is sequentially connected with a valve III 51 and a liquid ring vacuum pump 52 in series.
The dust removing mechanism 2 is a bag-type dust remover.
The working mode of the application is that the gas in the molten steel refining furnace 1 is pumped out through the first-stage air pumping part 3 of the six air pumping air circuits, the second-stage air pumping part 4 of the four air pumping air circuits and the third-stage air pumping part 5 of the three air pumping air circuits. Finally, the steam and water of the liquid ring vacuum pump 52 are sent into the steam-water separator 6 to be separated.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides a large-scale vacuum system for vacuum degassing smelting furnace, characterized by, including molten steel refining furnace (1), dust removal mechanism (2), one-level portion (3) of bleeding, second grade portion (4) of bleeding, tertiary portion (5), catch water (6) of bleeding, molten steel refining furnace (1), dust removal mechanism (2), one-level portion (3) of bleeding, second grade portion (4) of bleeding, tertiary portion (5) of bleeding, catch water (6) establish ties together, and one-level portion (3), second grade portion (4), tertiary portion (5) of bleeding are constituteed by several gas circuits of bleeding.
2. The large scale vacuum system for vacuum degassing smelting furnaces according to claim 1, characterized in that: the first-stage air extraction part (3) consists of six first-stage air extraction pipelines, and a first valve (31) and a first two roots vacuum pumps (32) are sequentially connected in series on each first-stage air extraction pipeline.
3. The large scale vacuum system for vacuum degassing smelting furnaces according to claim 1, characterized in that: the second-stage air extraction part (4) consists of four second-stage air extraction pipelines, wherein a second valve (41) and a second Roots vacuum pump (42) are sequentially connected in series on the three second-stage air extraction pipelines, and a bypass valve (43) is connected on the fourth second-stage air extraction pipeline.
4. The large scale vacuum system for vacuum degassing smelting furnaces according to claim 1, characterized in that: the three-stage air extraction part (5) consists of three stages of air extraction pipelines, and a valve III (51) and a liquid ring vacuum pump (52) are sequentially connected in series on each three stage of air extraction pipeline.
5. The large scale vacuum system for vacuum degassing smelting furnaces according to claim 1, characterized in that: the dust removal mechanism (2) is a bag-type dust remover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123312832.1U CN216741994U (en) | 2021-12-27 | 2021-12-27 | Large-scale vacuum system for vacuum degassing smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123312832.1U CN216741994U (en) | 2021-12-27 | 2021-12-27 | Large-scale vacuum system for vacuum degassing smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216741994U true CN216741994U (en) | 2022-06-14 |
Family
ID=81938612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123312832.1U Active CN216741994U (en) | 2021-12-27 | 2021-12-27 | Large-scale vacuum system for vacuum degassing smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216741994U (en) |
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2021
- 2021-12-27 CN CN202123312832.1U patent/CN216741994U/en active Active
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