CN220073261U - Alloy liquid chute filtration - Google Patents
Alloy liquid chute filtration Download PDFInfo
- Publication number
- CN220073261U CN220073261U CN202320920557.1U CN202320920557U CN220073261U CN 220073261 U CN220073261 U CN 220073261U CN 202320920557 U CN202320920557 U CN 202320920557U CN 220073261 U CN220073261 U CN 220073261U
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- China
- Prior art keywords
- round platform
- groove
- launder
- filter screen
- opening
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- 239000000956 alloy Substances 0.000 title claims abstract description 27
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 27
- 238000001914 filtration Methods 0.000 title claims abstract description 27
- 239000007788 liquid Substances 0.000 title abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000010079 rubber tapping Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 21
- 239000010959 steel Substances 0.000 claims description 21
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 11
- 229910052760 oxygen Inorganic materials 0.000 description 11
- 239000001301 oxygen Substances 0.000 description 11
- 239000012535 impurity Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model relates to a purification technology of molten metal, in particular to an alloy liquid launder filtering structure. The structure comprises: the upper round platform ring, the lower round platform groove, the water gap and the first straight hole filter screen have the following specific structures: the upper round platform ring and the lower round platform groove are oppositely arranged to form a launder in an integral structure that the inner diameter of the middle opening is larger than that of the upper opening and the lower opening, the lower round platform groove is communicated with the water gap through a tapping hole in the center of the bottom surface, and a first straight hole filter screen is arranged at the tapping hole in the center of the bottom surface. According to the utility model, by improving the launder filtering structure, a good filtering effect is achieved on the premise of ensuring production safety and not blocking alloy liquid pouring.
Description
Technical Field
The utility model relates to a purification technology of molten metal, in particular to an alloy liquid launder filtering structure.
Background
When a metal breaks, cracks are formed not only in the matrix but also often in the inclusions. The reason is that the inclusion cannot be deformed correspondingly when the metal is deformed, and larger stress is generated around the inclusion, so that microcracks are generated at the interface between the inclusion and the matrix, and the inclusion is broken along the direction of the inclusion once the interface is acted by tensile stress or shear stress, so that the fracture can be caused. Research shows that the influence of the inclusion on the strength of the steel is closely related to the particle size, and when the inclusion particles are relatively large (> 10 mu m), the yield strength of the steel is obviously reduced, and the tensile strength of the steel is reduced at the same time; currently, the sulfur and oxygen content of the third generation single crystal alloy of International advanced technology company (such as GE) is controlled to be 1ppm, and deep desulfurization and deoxidation are important technical targets for preparing high-end alloys. The quality of pure steel is measured mainly from three aspects: firstly, purity, namely the content of inclusions in steel, mainly the content of oxides; secondly, uniformity of steel generally refers to morphology and distribution of inclusions; thirdly, the surface quality of the steel comprises dimensional accuracy, surface cracks and the like.
The inclusion content in the steel is an important control point. At present, steel manufacturers at home and abroad strictly control the oxygen content in steel, because the oxygen in the steel basically exists in the form of inclusions. In order to reach the total oxygen content of the material below 6ppm, the material cannot be obtained only by vacuum refining, because when the oxygen content is reduced to 10ppm, almost no dissolved oxygen exists, and the existence form of oxygen elements is 1-2 microns and fine inclusions. Such fine inclusions can only be removed by filtration to reduce the oxygen content below 6ppm, with oxygen contents below 6ppm being the current level of international top grade pure steel. The traditional alloy liquid launder filtering structure is easy to cause alloy liquid blockage to cause production accidents.
Filtration is an important means for realizing ultra-high purity steel of pure steel, and different filtration structures are adopted to realize molten steel filtration in different degrees no matter in foreign refining methods or vacuum induction melting methods. For vacuum induction melting, launder filtration is a commonly used method, and the disadvantage of arranging a filter screen in the launder to filter molten steel in one production operation is that the launder is easy to block, which causes potential safety hazard. The technology replaces the filter screen with the spherical filter ball, which can capture the impurities and prevent the occurrence of production accidents because the filter ball is not easy to cause molten steel blockage due to rotation.
Disclosure of Invention
The utility model aims to provide an alloy liquid launder filtering structure, which can form a good filtering effect on the premise of ensuring production safety and not blocking alloy liquid pouring by improving the launder filtering structure.
The technical scheme of the utility model is as follows:
an alloy flow channel filter structure, the structure comprising: the upper round platform ring, the lower round platform groove, the water gap and the first straight hole filter screen have the following specific structures:
the upper round platform ring and the lower round platform groove are oppositely arranged to form a launder in an integral structure that the inner diameter of the middle opening is larger than that of the upper opening and the lower opening, the lower round platform groove is communicated with the water gap through a tapping hole in the center of the bottom surface, and a first straight hole filter screen is arranged at the tapping hole in the center of the bottom surface.
The alloy liquid flow groove filtering structure is characterized in that a horizontal second straight hole filter screen is arranged in the middle of a flow groove inner cavity formed by the upper round table ring and the lower round table groove, and a filter ball is arranged in the inner cavity on the second straight hole filter screen.
In the alloy liquid flow groove filtering structure, an upper circular table ring and a lower circular table groove form a flow groove inner cavity, the inner diameter of an upper opening is 100mm, the inner diameter of a middle opening is 200mm, the inner diameter of a lower opening is 100mm, the inner diameter of a steel tapping hole is 20mm, the height of the flow groove is 400mm, and the height of a water gap is 60mm.
In the alloy liquid flow groove filtering structure, an inner cavity of a flow groove formed by an upper circular table ring and a lower circular table groove is provided with 2/3 volume of aluminum oxide filtering balls, and the diameter of each filtering ball is 10mm.
The utility model has the advantages and beneficial effects that:
the utility model realizes casting filtration, and alloy liquid can be deeply decontaminated without blocking the alloy liquid after passing through the launder filtration structure. Because the combined structure of the upper circular table ring, the lower circular table groove, the first straight hole filter screen, the second straight hole filter screen and the filter ball is adopted for deep impurity removal and filtration, tiny impurities in alloy liquid are effectively removed, and the sulfur content, the oxygen content and the nitrogen content can be reduced below the existing standard.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
In the figure, 1 an upper round platform ring, 2 a lower round platform groove, 3 a water gap, 4 a first straight hole filter screen, 5 a second straight hole filter screen, 6 a filter ball and 7 a steel ingot mould.
Detailed Description
As shown in fig. 1, the present utility model provides an alloy flow channel filtering structure, which mainly includes: the water gap filter comprises an upper circular truncated cone ring 1, a lower circular truncated cone groove 2, a water gap 3, a first straight hole filter screen 4, a second straight hole filter screen 5 and a filter ball 6, and has the following specific structure:
the upper round table ring 1 and the lower round table groove 2 are oppositely arranged to form a launder in an integral structure that the inner diameter of a middle hole is larger than that of the upper hole and the lower hole, the lower round table groove 2 is communicated with the water gap 3 through a tapping hole in the center of the bottom surface, a first straight hole filter screen 4 is arranged at the tapping hole in the center of the bottom surface, and the lower part of the water gap 3 can correspond to a pouring cup of a steel ingot mould 7 or other castings.
The middle of the inner cavity of the launder formed by the upper circular platform ring 1 and the lower circular platform groove 2 is provided with a horizontal second straight hole filter screen 5, and the inner cavity is provided with a filter ball 6 up and down on the second straight hole filter screen 5.
In the inner cavity of the launder formed by the upper circular table ring and the lower circular table groove, the inner diameter of the upper opening is 100mm, the inner diameter of the middle opening is 200mm, the inner diameter of the lower opening is 100mm, and the inner diameter of the tapping hole is 20mm. The height of the launder is 400mm, and the height of the water gap is 60mm. The inner cavity of the launder is provided with 2/3 volume of alumina filter balls, and the diameter of each filter ball is 10mm. The first straight hole filter screen and the second straight hole filter screen are alumina straight hole filter screens, the hole density is 5-15 ppi, and the porosity is 80-90%.
After the alloy liquid fills the launder, the alloy liquid slowly flows out of the lower water gap along with the continuous addition of the alloy liquid at the upper part. In the process that the alloy liquid is left from the upper part to the lower part in the inner cavity of the launder, the oxygen content can be further reduced from the standard 10ppm due to the change of the inner diameters of the upper opening, the middle opening and the lower opening and the filtration and purification of the alloy liquid after the impurities are adsorbed on the surface of the alumina filter ball.
Claims (3)
1. An alloy launder filtration structure, the structure comprising: the upper round platform ring, the lower round platform groove, the water gap and the first straight hole filter screen have the following specific structures:
the upper round platform ring and the lower round platform groove are oppositely arranged to form a launder in an integral structure with the inner diameter of the middle opening being larger than that of the upper opening and the lower opening, the lower round platform groove is communicated with the water gap through a tapping hole in the center of the bottom surface, and a first straight hole filter screen is arranged at the tapping hole in the center of the bottom surface;
the middle of the inner cavity of the launder formed by the upper circular platform ring and the lower circular platform groove is provided with a horizontal second straight hole filter screen, and alumina filter balls are arranged on the second straight hole filter screen in the inner cavity.
2. The alloy runner filtering structure according to claim 1, wherein in the runner cavity formed by the upper circular table ring and the lower circular table groove, the inner diameter of the upper opening is 100mm, the inner diameter of the middle opening is 200mm, the inner diameter of the lower opening is 100mm, the inner diameter of the steel tapping hole is 20mm, the height of the runner is 400mm, and the height of the water gap is 60mm.
3. The alloy bath groove filter structure according to claim 1, wherein the inner cavity of the bath groove formed by the upper circular table ring and the lower circular table groove is provided with 2/3 volume of alumina filter balls, and the diameter of the filter balls is 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320920557.1U CN220073261U (en) | 2023-04-21 | 2023-04-21 | Alloy liquid chute filtration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320920557.1U CN220073261U (en) | 2023-04-21 | 2023-04-21 | Alloy liquid chute filtration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220073261U true CN220073261U (en) | 2023-11-24 |
Family
ID=88819595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320920557.1U Active CN220073261U (en) | 2023-04-21 | 2023-04-21 | Alloy liquid chute filtration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220073261U (en) |
-
2023
- 2023-04-21 CN CN202320920557.1U patent/CN220073261U/en active Active
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| GR01 | Patent grant |