CN114540570B - Flue of converter waste heat boiler - Google Patents
Flue of converter waste heat boiler Download PDFInfo
- Publication number
- CN114540570B CN114540570B CN202210065832.6A CN202210065832A CN114540570B CN 114540570 B CN114540570 B CN 114540570B CN 202210065832 A CN202210065832 A CN 202210065832A CN 114540570 B CN114540570 B CN 114540570B
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- flue
- water
- heated tube
- heated
- wall
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C2100/00—Exhaust gas
- C21C2100/06—Energy from waste gas used in other processes
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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
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention provides a converter waste heat boiler flue, which comprises a furnace mouth section flue, a skirt cover and a water-cooling ring, wherein the furnace mouth section flue is arranged in a high-rise frame above a converter, the water-cooling ring is provided with a first heated tube arranged in an annular mode, the bottom of the furnace mouth section flue is nested in the first heated tube of the water-cooling ring, a certain gap is reserved between the outer side wall of the furnace mouth section flue and the inner side wall of the first heated tube, the skirt cover is provided with a second heated tube in a bell mouth shape, the second heated tube is arranged in a gap space reserved between the furnace mouth section flue and the first heated tube, and the second heated tube can move up and down in the gap space. The skirt cover is movably arranged between the inner wall of the water-cooling ring and the outer wall of the flue at the furnace mouth section, the inner wall of the water-cooling ring and the outer wall of the flue at the furnace mouth section can play a role in guiding the skirt cover during lifting, and can also play a role in sealing smoke to a certain extent, so that the smoke overflow is reduced, and the maintenance workload is greatly reduced.
Description
Technical Field
The invention belongs to the technical field of waste heat boilers, and particularly relates to a converter waste heat boiler flue.
Background
The converter vaporization flue is used for recovering sensible heat of high-temperature flue gas generated in the converter steelmaking process, and the flue gas is sent into a subsequent dust removal system after being reduced to a certain temperature. As a large amount of high-temperature flue gas is generated in the converter blowing process, the flue gas temperature is usually as high as 2000 ℃, the reaction in the converter is violent, and the risk of slag splashing exists. The skirt cover needs to be lowered in order to prevent the sucked air from causing coal gas combustion when the converter blows oxygen, the skirt cover needs to be lifted when the converter shakes the converter, and the skirt cover adopts a water cooling structure in order to prevent the skirt cover from being burnt out and recycling the waste heat of the flue gas. Traditional skirt cover and fire door section flue adopt steam seal, nitrogen gas seal or mechanical seal, and wherein, steam seal and nitrogen gas seal all can cause the waste of the energy, and mechanical seal structure is complicated, and the sealing member belongs to the vulnerable part moreover, and maintenance work volume is big.
Disclosure of Invention
The invention aims to provide a converter waste heat boiler flue which can at least solve part of defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a converter exhaust-heat boiler flue, includes fire door section flue, skirt and water-cooling ring, fire door section flue is installed in the high-rise frame of converter top, the water-cooling ring has and is the annular heated tube that arranges one, the bottom of fire door section flue is nested in the heated tube of water-cooling ring one, and leaves certain clearance between fire door section flue lateral wall and the heated tube inside wall, the skirt has and is the heated tube two of horn mouth shape, heated tube two arranges in the clearance space that leaves between fire door section flue and the heated tube one, and heated tube two can reciprocate in this clearance space.
Furthermore, the water cooling ring comprises a first heated tube, a first water inlet header and a first water outlet header, the first water inlet header and the first water outlet header are both arranged on the outer sides of the first heated tube, and the first water inlet header and the first water outlet header are symmetrically arranged.
Furthermore, the heated tube I is of an annular structure with the same inner diameter in the height direction, and the inner wall and the outer wall of the heated tube I are both smooth wall surfaces.
Further, the skirt cover comprises a heated pipe II, a water inlet header II, a water outlet header II and a lifting guide assembly, the water outlet header II and the water inlet header II are arranged at intervals from top to bottom, the diameter of the water inlet header II is larger than that of the water outlet header II, the water outlet header II and the water inlet header II are both located on the outer side of the heated pipe I of the water-cooled ring, the heated pipe II is vertically arranged, the water inlet end of the heated pipe II is connected with the water inlet header II, and the water outlet end of the heated pipe II is connected with the water outlet header II.
Furthermore, the lifting guide assemblies are provided with a plurality of groups and are arranged at equal intervals along the two circumferential directions of the heated tubes.
Furthermore, the lifting guide assembly comprises a fixed support, a lifting driving piece and a lifting power transmission piece, the heated pipe II, the water inlet header II and the water outlet header II are fixedly connected to the fixed support, and the lifting driving piece drives the fixed support to move up and down along the height direction of the water cooling ring through the lifting power transmission piece.
Furthermore, the lifting guide assembly further comprises a guide wheel, the guide wheel is fixedly mounted on the fixing support, and the guide wheel is arranged to be attached to the outer wall of the water-cooling ring.
Furthermore, the top of the heated tube II is provided with an outward expansion section which extends outwards in a gradually expanding shape.
Furthermore, the furnace mouth section flue comprises a third heated pipe, a third water inlet header and a third water outlet header, and the third water inlet header and the third water outlet header are respectively connected to the lower part and the upper part of the third heated pipe.
Furthermore, the heated tube III comprises a vertical section and an inclined section, the vertical section is positioned outside the heated tube I, the inclined section is positioned inside the heated tube I, the inclined section is of a horn mouth structure, the inclined section is provided with a double-layer wall which is arranged inside and outside, the outer wall of the inclined section is a vertical surface, and the inner wall of the inclined section is an inclined surface.
Compared with the prior art, the invention has the following beneficial effects:
the flue of the converter waste heat boiler provided by the invention is simple in structure, the skirt cover is movably arranged between the inner wall of the water-cooling ring and the outer wall of the flue of the converter mouth section, the guide effect during lifting of the skirt cover can be realized through the inner wall of the water-cooling ring and the outer wall of the flue of the converter mouth section, a certain smoke sealing effect can also be realized, the overflow of smoke is reduced, and the maintenance workload is greatly reduced.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a flue structure of a converter waste heat boiler with a skirt in a cover lowering position according to an embodiment of the invention;
FIG. 2 is a schematic view of a flue structure of a converter exhaust heat boiler with a skirt in a cover lifting position according to an embodiment of the invention;
FIG. 3 is a schematic view of the structure of a skirt according to an embodiment of the invention;
FIG. 4 is an enlarged view of section I of FIG. 3;
FIG. 5 is a top view of a skirt in an embodiment of the invention;
FIG. 6 is a schematic structural diagram of a water cooling ring in an embodiment of the invention;
FIG. 7 is an enlarged view of the portion A of FIG. 6;
FIG. 8 is an enlarged view of the portion B of FIG. 6;
FIG. 9 is a top view of a water cooled ring in an embodiment of the invention.
Description of reference numerals: 1. a skirt; 2. water cooling ring; 3. a furnace mouth section flue; 4. a third water outlet header; 5. a heated tube III; 6. a third water inlet header; 7. a converter mouth; 8. a heated tube II; 9. a second water inlet header; 10. a lifting guide assembly; 11. a second water outlet header; 12. fixing a bracket; 13. a lifting power transmission member; 14. a guide wheel; 15. an outward expansion section; 16. bending the section; 17. a first water inlet header; 18. a first heated tube; 19. and a first water outlet header.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The terms "a", "an", "two" and "three" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "a", "an", "two", or "three" may include one or more of that feature either explicitly or implicitly; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, 2, 3 and 6, the embodiment provides a flue of a converter waste heat boiler, which includes a flue 3 of a furnace mouth section, a skirt 1 and a water-cooling ring 2, wherein the flue 3 of the furnace mouth section is installed in a high-rise frame above a converter, the water-cooling ring 2 is installed at the bottom of the flue 3 of the furnace mouth section through a flange, the water-cooling ring 2 has a first heated tube 18 arranged in a ring shape, the inner diameter of the first heated tube 18 is slightly larger than that of the outer wall of the flue 3 of the furnace mouth section, the bottom of the flue 3 of the furnace mouth section is nested in the first heated tube 18 of the water-cooling ring 2, a certain gap is left between the outer wall of the flue 3 of the furnace mouth section and the inner wall of the first heated tube 18, the skirt 1 has a second heated tube 8 in a bell mouth shape, the second heated tube 8 is arranged in a gap space left between the flue 3 of the furnace mouth section and the first heated tube 18, and the second heated tube 8 can move up and down in the gap space; when oxygen is blown to the converter, the skirt cover 1 is lowered to a cover lowering position (as shown in figure 1), and the bottom of the skirt cover 1 covers the converter mouth 7, so that a certain smoke sealing effect can be achieved, and the smoke overflow in the converter smelting process is reduced; when the furnace needs to be shaken, the skirt cover 1 is lifted to a cover lifting position (as shown in figure 2), and the heated tube II 8 of the skirt cover 1 is arranged between the heated tube I18 of the water-cooled ring 2 and the outer side of the furnace mouth section flue 3, so that the inner wall of the water-cooled ring 2 and the outer wall of the furnace mouth section flue 3 can be used for guiding the lifting of the skirt cover 1. The flue of the converter waste heat boiler provided by the embodiment is simple in structure, the sealing problem between the skirt cover and the flue of the furnace mouth section is effectively solved through the design of the skirt cover structure and the arrangement mode, and the flue is small in maintenance workload, safe and reliable.
In a detailed embodiment, as shown in fig. 1 and 2, the throat section flue 3 comprises a heated tube three 5, a water inlet header three 6 and a water outlet header three 4, and the water inlet header three 6 and the water outlet header three 4 are respectively connected to the lower part and the upper part of the heated tube three 5; optimally, water cooling jackets can be arranged on an oxygen lance insertion opening, a secondary oxygen lance insertion opening and a charging opening on the furnace mouth section flue 3 so as to ensure the cooling effect of the oxygen lance, the secondary oxygen lance and the feed opening. Specifically, the third heated tube 5 comprises a vertical section and an inclined section, the vertical section is located outside the first heated tube 18, the inclined section is located inside the first heated tube 18, the inclined section is of a bell-mouth structure, the inclined section is provided with a double-layer wall arranged inside and outside, the inner wall of the inclined section is an inclined plane, the outer wall of the inclined section is a vertical plane, and a concentric annular chamber is formed between the outer wall and the inner wall of the water-cooled ring 2.
In one embodiment, as shown in fig. 6, 7, 8 and 9, the water cooling ring 2 includes a first heated tube 18, a first water inlet header 17 and a first water outlet header 19, the first heated tube 18 is arranged in a ring shape, the inner wall of the first heated tube 18 is vertical, a concentric ring-shaped chamber is formed between the first heated tube 18 and the outer wall of the third heated tube 5 of the furnace mouth section flue 3, the first water inlet header 17 and the first water outlet header 19 are both arranged outside the first heated tube 18, the first water inlet header 17 and the first water outlet header 19 are symmetrically arranged, the water inlet end of the first heated tube 18 is connected with the first water inlet header 17, and the water outlet end of the first heated tube 18 is connected with the first water outlet header 19; further, the heated tube 18 is of an annular structure with the same inner diameter in the height direction, and the inner wall and the outer wall of the heated tube 18 are both smooth wall surfaces.
As a specific embodiment, as shown in fig. 3, 4 and 5, the skirt cover 1 includes a heated tube two 8, a water inlet header two 9, a water outlet header two 11 and a lifting guide assembly 10, the water outlet header two 11 and the water inlet header two 9 are arranged at intervals from top to bottom, the diameter of the water inlet header two 9 is larger than that of the water outlet header two 11, the water outlet header two 11 and the water inlet header two 9 are both located outside the heated tube one 18 of the water-cooled ring 2, the heated tubes two 8 are vertically arranged side by side in a circumferential direction, a bell mouth-shaped structure with a small top is integrally formed, the heated tube two 8 is arranged in a concentric annular cavity formed between the inner wall of the heated tube one 18 of the water-cooled ring 2 and the outer wall of the heated tube three 5 of the furnace mouth section flue 3, the water inlet end of the heated tube two 8 is connected with the water inlet header two 9, the water outlet end of the heated tube two 8 is connected with the water outlet header two 11, and the lifting guide assembly 10 is used for controlling lifting and lowering of the skirt cover 1.
Optimally, the water inlet end and the water outlet end of the heated tube II 8 are both positioned at the bottom of the heated tube II 8, the water inlet end and the water outlet end of the heated tube II 8 are both provided with bending sections 16 extending outwards, and the bending sections 16 are connected with the water inlet header II 9 and the water outlet header II 11, so that cooling water carries out waste heat utilization on high-temperature flue gas in the heated tube II 8 of the skirt cover in a vertically circuitous operation mode, the waste heat utilization rate is improved, and meanwhile, the bending structural design at the bottom of the heated tube II 8 further improves the effect of sealing the flue gas of the skirt cover 1.
Optimally, the top of the heated tube II 8 is provided with an outward expanding section 15 which extends outwards in a gradually expanding shape, and the design of the outward expanding section 15 can ensure that the heated tube II 8 keeps a certain distance with the inner wall of the water-cooling ring 2 and the outer wall of the furnace mouth section flue 3, so that the guiding effect on the lifting of the skirt cover 1 is further realized, a certain smoke sealing effect can be realized, and the smoke overflow is reduced.
Specifically, as shown in fig. 5, the lifting guide assemblies 10 may be designed into a plurality of groups, and are respectively arranged along the circumferential direction of the heated tube two 8 at equal intervals, in this embodiment, four groups of lifting guide assemblies 10 are provided; skirt 1 promotes or descends the in-process, promotes guide assembly 10 through the multiunit and provides the effort to skirt 1 simultaneously, guarantees the stability that skirt 1 promoted or descends the process.
In an optional embodiment, the lifting guide assembly 10 includes a fixed support 12, a lifting driving member (not shown in the figure) and a lifting power transmission member 13, the heated pipe two 8, the water inlet header two 9 and the water outlet header two 11 are all fixedly connected to the fixed support 12, and the lifting driving member drives the fixed support 12 to move up and down along the height direction of the water-cooled ring 2 through the lifting power transmission member 13, so as to control the lifting and lowering of the skirt cover 1. The lifting driving member may be a hoisting device or a hydraulic device, and the lifting power transmission member 13 may be a lifting guide chain or a lifting rod, although the specific choice is not limited thereto.
Preferably, the lifting guide assembly 10 further comprises a guide wheel 14, the guide wheel 14 is fixedly installed on the fixing bracket 12, and the guide wheel 14 is arranged to be tightly attached to the outer wall of the water-cooling ring 2, so that the stability of the skirt 1 in the lifting process is further ensured through the arrangement of the guide wheel 14.
In conclusion, the flue of the converter waste heat boiler provided by the invention has a simple structure, the skirt cover is movably arranged between the inner wall of the water-cooling ring and the outer wall of the flue of the converter mouth section, and the inner wall of the water-cooling ring and the outer wall of the flue of the converter mouth section can play a role in guiding the skirt cover during lifting and also play a role in sealing flue gas to a certain extent, so that the overflow of the flue gas is reduced, and the maintenance workload is greatly reduced.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the invention, which is intended to be covered by the claims and any design similar or equivalent to the scope of the invention.
Claims (7)
1. A converter exhaust-heat boiler flue which characterized in that: the furnace mouth section flue is arranged in a high-rise frame above a converter, the water-cooling ring is provided with a first heated tube arranged annularly, the bottom of the furnace mouth section flue is nested in the first heated tube of the water-cooling ring, a certain gap is reserved between the outer side wall of the furnace mouth section flue and the inner side wall of the first heated tube, the skirt cover is provided with a second heated tube in a bell mouth shape, the second heated tube is arranged in a gap space reserved between the furnace mouth section flue and the first heated tube, and the second heated tube can move up and down in the gap space; the top of the heated tube II is provided with an outward expansion section which extends outwards in a gradually expanding shape; the furnace mouth section flue comprises a heated pipe III, a water inlet header III and a water outlet header III, and the water inlet header III and the water outlet header III are respectively connected to the lower part and the upper part of the heated pipe III; the heating tube III comprises a vertical section and an inclined section, the vertical section is located outside the heating tube I, the inclined section is located inside the heating tube I, the inclined section is of a bell-mouth structure, the inclined section is provided with a double-layer wall arranged inside and outside, the outer wall of the inclined section is a vertical surface, and the inner wall of the inclined section is an inclined surface.
2. The converter waste heat boiler flue of claim 1, wherein: the water cooling ring comprises a first heated pipe, a first water inlet header and a first water outlet header, wherein the first water inlet header and the first water outlet header are both arranged on the outer side of the first heated pipe, and the first water inlet header and the first water outlet header are symmetrically arranged.
3. The flue of the converter waste heat boiler of claim 1 or 2, characterized in that: the first heated pipe is of an annular structure with the same inner diameter in the height direction, and the inner wall and the outer wall of the first heated pipe are smooth wall surfaces.
4. The converter waste heat boiler flue of claim 1, wherein: the skirt cover comprises a heated tube II, a water inlet header II, a water outlet header II and a lifting guide assembly, the water outlet header II and the water inlet header II are arranged at intervals up and down, the diameter of the water inlet header II is larger than that of the water outlet header II, the water outlet header II and the water inlet header II are both positioned outside the heated tube I of the water-cooled ring, the heated tube II is vertically arranged, the water inlet end of the heated tube II is connected with the water inlet header II, and the water outlet end of the heated tube II is connected with the water outlet header II.
5. The flue of the converter waste heat boiler of claim 4, wherein: the lifting guide assemblies are provided with a plurality of groups and are arranged at equal intervals along the two circumferential directions of the heated pipes.
6. The converter waste heat boiler flue of claim 4, wherein: the lifting guide assembly comprises a fixed support, a lifting driving piece and a lifting power transmission piece, the heated pipe II, the water inlet header II and the water outlet header II are fixedly connected to the fixed support, and the lifting driving piece drives the fixed support to move up and down along the height direction of the water cooling ring through the lifting power transmission piece.
7. The flue of the converter waste heat boiler of claim 6, wherein: the lifting guide assembly further comprises a guide wheel, the guide wheel is fixedly mounted on the fixed support, and the guide wheel is arranged to be attached to the outer wall of the water cooling ring.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210065832.6A CN114540570B (en) | 2022-01-20 | 2022-01-20 | Flue of converter waste heat boiler |
| PCT/CN2022/112408 WO2023138040A1 (en) | 2022-01-20 | 2022-08-15 | Flue of converter waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210065832.6A CN114540570B (en) | 2022-01-20 | 2022-01-20 | Flue of converter waste heat boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114540570A CN114540570A (en) | 2022-05-27 |
| CN114540570B true CN114540570B (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210065832.6A Active CN114540570B (en) | 2022-01-20 | 2022-01-20 | Flue of converter waste heat boiler |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114540570B (en) |
| WO (1) | WO2023138040A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114540570B (en) * | 2022-01-20 | 2023-02-28 | 中冶南方工程技术有限公司 | Flue of converter waste heat boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2934251Y (en) * | 2006-07-28 | 2007-08-15 | 上海梅山钢铁股份有限公司 | Revolving furnace movable smoke guard sealing arrangement |
| DE202013104702U1 (en) * | 2013-10-02 | 2013-10-29 | Oschatz Gmbh | Device for metal extraction, in particular for copper extraction |
| CN209759497U (en) * | 2019-02-20 | 2019-12-10 | 中冶南方工程技术有限公司 | Sealing device between skirt cover and moving section flue of converter waste heat boiler |
| CN112662837A (en) * | 2020-12-08 | 2021-04-16 | 苏州海陆重工股份有限公司 | Skirt cover in converter waste heat boiler |
| CN214148863U (en) * | 2020-12-08 | 2021-09-07 | 苏州海陆重工股份有限公司 | Skirt cover in converter waste heat boiler |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4097029A (en) * | 1975-12-31 | 1978-06-27 | Pennsylvania Engineering Corporation | Enclosure for steel converting apparatus |
| US4076223A (en) * | 1975-12-31 | 1978-02-28 | Pennsylvania Engineering Corporation | Enclosure for steel converting apparatus |
| CN2910948Y (en) * | 2006-06-12 | 2007-06-13 | 江阴海陆冶金设备制造有限公司 | Sheath-like, water circulation chimney at converter mouth of evaporated cooling flue of steelmaking converter |
| CN203582891U (en) * | 2013-11-27 | 2014-05-07 | 中冶东方工程技术有限公司 | Movable smoke hood |
| CN104561438B (en) * | 2015-01-29 | 2016-04-20 | 江苏永钢集团有限公司 | Converter evaporation cooling air flue |
| CN207091455U (en) * | 2017-07-19 | 2018-03-13 | 中冶南方工程技术有限公司 | Aqueous vapor double containment converter movable hood |
| CN207091453U (en) * | 2017-07-19 | 2018-03-13 | 中冶南方工程技术有限公司 | Converter movable hood |
| CN114540570B (en) * | 2022-01-20 | 2023-02-28 | 中冶南方工程技术有限公司 | Flue of converter waste heat boiler |
-
2022
- 2022-01-20 CN CN202210065832.6A patent/CN114540570B/en active Active
- 2022-08-15 WO PCT/CN2022/112408 patent/WO2023138040A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2934251Y (en) * | 2006-07-28 | 2007-08-15 | 上海梅山钢铁股份有限公司 | Revolving furnace movable smoke guard sealing arrangement |
| DE202013104702U1 (en) * | 2013-10-02 | 2013-10-29 | Oschatz Gmbh | Device for metal extraction, in particular for copper extraction |
| CN209759497U (en) * | 2019-02-20 | 2019-12-10 | 中冶南方工程技术有限公司 | Sealing device between skirt cover and moving section flue of converter waste heat boiler |
| CN112662837A (en) * | 2020-12-08 | 2021-04-16 | 苏州海陆重工股份有限公司 | Skirt cover in converter waste heat boiler |
| CN214148863U (en) * | 2020-12-08 | 2021-09-07 | 苏州海陆重工股份有限公司 | Skirt cover in converter waste heat boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023138040A1 (en) | 2023-07-27 |
| CN114540570A (en) | 2022-05-27 |
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