CN109576436B - Forced circulation cooling flue - Google Patents
Forced circulation cooling flue Download PDFInfo
- Publication number
- CN109576436B CN109576436B CN201811599921.9A CN201811599921A CN109576436B CN 109576436 B CN109576436 B CN 109576436B CN 201811599921 A CN201811599921 A CN 201811599921A CN 109576436 B CN109576436 B CN 109576436B
- Authority
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- China
- Prior art keywords
- pipes
- forced circulation
- pipe
- flue
- circulation cooling
- 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.)
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- 238000001816 cooling Methods 0.000 title claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000003466 welding Methods 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 42
- 229910052757 nitrogen Inorganic materials 0.000 claims description 21
- 238000005299 abrasion Methods 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000009628 steelmaking Methods 0.000 abstract description 8
- 230000009172 bursting Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 206010022000 influenza Diseases 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a forced circulation cooling flue, which comprises: the device comprises a lower header group, a flue and an upper header group, wherein a plurality of heated pipes in the flue are welded to form a cylindrical membrane wall structure, water inlets of the heated pipes respectively penetrate through corresponding through holes in the headers of the upper header group and extend into the headers, and the heated pipes extending into the headers are fixedly connected to the inner side wall of the headers through welding and sealing; the water inlets of the heat receiving pipes are respectively provided with a throttle pipe, the tail parts of the throttle pipes are inserted into the corresponding heat receiving pipes through the water inlets of the corresponding heat receiving pipes, a circular channel and a conical channel are sequentially arranged in the throttle pipes from the head part to the tail part, and the small ends of the conical channels are in smooth transition connection with the circular channel. The arrangement of the structure effectively improves the frequent pipe bursting phenomenon of each heated pipe caused by uneven water inflow, the service life of the forced circulation cooling flue can be longer than two years, and the steel making is not influenced by water leakage for about one year and half a year.
Description
Technical Field
The invention relates to a converter vaporization cooling flue, in particular to a forced circulation cooling flue.
Background
The converter waste heat boiler is mainly used for recovering coal gas, high-temperature flue gas and smoke dust during oxygen blowing steelmaking of converters in iron and steel enterprises. The waste heat boiler of the converter generally adopts a vaporization cooling flue structure, the vaporization cooling flue of the converter is directly linked with the production process of the converter, and is directly involved in steelmaking production as a part of the steelmaking process of the converter, high-temperature flue gas can be collected and cooled down in the process of smelting steel by the converter, so that the requirements of dust removal and gas recovery in the later stage of steelmaking are met, a large amount of steam can be generated for production and living, the production and living costs can be greatly reduced, and the waste heat boiler has very important roles in a steel mill.
The converter vaporization cooling flue consists of a plurality of natural circulation flues and a plurality of forced circulation flues, and a throttling device is adopted for the forced circulation flues to enable water in the lower header group to flow into each heat receiving pipe of the forced circulation flues more uniformly. The structure of the common throttling device in the current market is as follows: the collecting box of the lower collecting box group is provided with a connecting through hole and a mounting through hole, the connecting through hole and the mounting through hole are a pair of through holes, the heated pipe extends into the connecting through hole in a sealing way through the throttle pipe seat, the throttle pipe extends into the collecting box through the mounting through hole and then is screwed on the throttle pipe seat through a throttle pipe mounting tool, the throttle pipe adopts a honeycomb type dense open pore structure, and then the mounting through hole is plugged in a sealing way through a screwed plug.
The forced circulation cooling flue with the throttling device has the following defects:
(1) in the running process of the forced circulation cooling flue, the absolute sealing state between the plug and the mounting through hole is difficult to ensure due to the high-temperature high-pressure severe working environment where water is in and the thermal expansion and contraction characteristics of the medium in each heated pipe, and the water leakage phenomenon is easy to occur between the plug and the mounting through hole in the normal steelmaking process.
(2) The water entering the lower header group contains a large amount of impurities which easily block all the holes on the throttle pipe, so that the heated pipe is broken due to insufficient water entering the heated pipe, and the phenomenon of pipe explosion of the heated pipe is serious.
(3) The forced circulation cooling flue is always in a vibration state in the operation process, so that the sealing connection between the throttle seat and the connecting through hole is quite unstable, and the water leakage phenomenon is easy to occur.
(4) The service life of the forced circulation cooling flue is only about half a year, and the water leakage phenomenon can occur when the forced circulation cooling flue is used for less than three months.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: provided is a forced circulation cooling flue which enables a medium in each heat receiving pipe to smoothly circulate. When the forced circulation cooling flue runs, the tube explosion phenomenon of each heated tube is not easy to occur.
In order to solve the problems, the invention adopts the following technical scheme: the forced circulation cooling flue comprises: the device comprises a lower header group, a flue and an upper header group, wherein a plurality of heated pipes in the flue are welded to form a cylindrical membrane wall structure, water inlets of the heated pipes respectively penetrate through corresponding through holes in the headers of the lower header group and extend into the headers, and the heated pipes extending into the headers are fixedly connected to the inner side wall of the headers through welding and sealing; the water inlets of the heat receiving pipes are respectively provided with a throttle pipe, the tail parts of the throttle pipes are inserted into the corresponding heat receiving pipes through the water inlets of the corresponding heat receiving pipes, a circular channel and a conical channel are sequentially arranged in the throttle pipes from the head part to the tail part, and the small ends of the conical channels are in smooth transition connection with the circular channel.
Further, in the aforementioned forced circulation cooling flue, the head portion of each throttle pipe is provided with a flange, and when the tail portion of each throttle pipe is inserted into the corresponding heat receiving pipe through the water inlet of the corresponding heat receiving pipe, each flange is fixedly connected to the end portion of the water inlet of the corresponding heat receiving pipe.
Further, the aforementioned forced circulation cooling flue, wherein, be provided with the feed opening device on the flue, the feed opening device include: the anti-wear cylinder comprises a blanking opening and an anti-wear cylinder body, wherein a first flange is arranged at the top of the anti-wear cylinder body, a second flange is arranged at the top of the blanking opening, and the anti-wear cylinder body is connected with the inner cylinder body of the blanking opening through the first flange after being inserted into the inner cylinder body of the blanking opening, so that the anti-wear cylinder body is fixed in the inner cylinder body of the blanking opening, and a nitrogen sealing device is further fixedly arranged at the top of the anti-wear cylinder body.
Further, the forced circulation cooling flue is characterized in that the anti-abrasion cylinder body is made of Q345R steel, and the wall thickness of the anti-abrasion cylinder body is 38-45 mm.
Further, in the forced circulation cooling flue, the wall thickness of the wear-resistant cylinder is 40 mm.
Further, the structure of the nitrogen sealing device comprises: the cylindrical inner coaming, the cylindrical outer coaming, the upper flange and the lower flange are surrounded to form an annular sealing cavity, and the annular sealing cavity is connected with the first flange through the lower flange; at least one nitrogen inlet pipe is arranged on the cylindrical peripheral plate, the air outlet of each nitrogen inlet pipe is communicated with the annular sealing cavity, a plurality of small hole channels are formed in the cylindrical inner peripheral plate along the circumferential direction, and nitrogen ejected from each small hole channel forms a nitrogen sealing layer.
Further, in the forced circulation cooling flue, the inclination angle α of the axis of each small hole channel relative to the sealing surface of the upper flange is 25 ° to 50 °.
Further, in the forced circulation cooling flue, the inclination angle α of the axis of each small hole channel with respect to the sealing surface of the upper flange is 30 °.
The beneficial effects of the invention are as follows: (1) the heated pipes extending into the header are fixedly connected to the inner side wall of the header through welding in a sealing manner, sealing welding seams are formed on the heated pipes and the inner side wall of the header, and the sealing welding seams on the inner side wall of the header are in an unpressurized state, so that the sealing connection between the heated pipes and the header is very firm, and the water leakage phenomenon is not easy to occur; (2) the arrangement of the throttle pipe structure increases the flow velocity of water flowing into the heat-receiving pipes from the header and increases the resistance so that water in the header can uniformly enter each heat-receiving pipe, thereby effectively improving the frequent pipe bursting phenomenon of each heat-receiving pipe caused by uneven water inflow, greatly prolonging the service life and the utilization coefficient of the forced circulation cooling flue and reducing the labor intensity of workers. The service life of the forced circulation cooling flue can be longer than two years, and the steel making is not influenced by water leakage for about one and a half years.
Drawings
Fig. 1 is a schematic structural view of a forced circulation cooling flue according to the present invention.
Fig. 2 is a schematic view of a partially enlarged structure between the header and any heated tube in fig. 1.
Fig. 3 is a schematic structural view of the feed opening device in the left view direction of fig. 1.
Fig. 4 is a schematic view of the wear cylinder of fig. 3.
Fig. 5 is a schematic view of the nitrogen seal of fig. 3.
Fig. 6 is a partially enlarged schematic view of the portion a in fig. 5.
Detailed Description
The technical scheme of the invention is further described in detail below with reference to the attached drawings and the preferred embodiments.
Example 1
As shown in fig. 1 and 2, the forced circulation cooling flue described in the present embodiment includes: the lower header group 3, the flue 2 and the upper header group 1, and a plurality of heated pipes 21 in the flue 2 are welded to form a cylindrical membrane wall structure. The water inlets of the heat-receiving pipes 21 respectively penetrate through the corresponding through holes on the header 31 of the lower header group 3 and extend into the header 31, and the heat-receiving pipes 21 extending into the header 31 are fixedly connected to the inner side wall of the header 31 through welding and sealing, and sealing welding seams are formed on the heat-receiving pipes 21 and the inner side wall of the header 31. A throttle pipe 4 is respectively arranged at the water inlet of each heated pipe 31, the tail part of each throttle pipe 4 is inserted into the corresponding heated pipe 31 through the water inlet of the corresponding heated pipe 31, a circular channel 41 and a conical channel 42 are sequentially arranged in the throttle pipe 4 from the head part to the tail part, and the small end of the conical channel 42 is in smooth transition connection with the circular channel 41.
As shown in fig. 2, a flange 43 is provided at the head of each throttle pipe 4, and when the tail of each throttle pipe 4 is inserted into the corresponding heat receiving pipe 21 through the water inlet of the corresponding heat receiving pipe 21, each flange 43 is fixedly connected to the water inlet end of the corresponding heat receiving pipe 21.
When the device works, water enters from the distribution header in the lower header group 3 and then uniformly enters into the header 31 through the distribution pipe, and then uniformly flows into each heat receiving pipe 21 through the throttle pipe 4 arranged on each heat receiving pipe 21, and the water in each heat receiving pipe 21 generates a steam-water mixture and is collected and flows out from the upper header group 1 through indirect heat exchange with high-temperature flue gas such as high-temperature flue gas and high-temperature flue gas in a flue.
Example two
As shown in fig. 1, 3 and 4, the present embodiment is different from the first embodiment in that: for the forced circulation cooling flue at the converter mouth, a feed opening device 5 is also arranged on the flue 2, and the feed opening device 5 is generally symmetrically arranged at two sides of the flue 2 at the converter mouth as an inlet of bulk raw materials used by the converter, namely, two identical feed opening devices 5 are symmetrically arranged at two sides of the flue 2. The feed opening device 5 includes: the anti-wear cylinder 6 is fixed in the inner cylinder of the blanking opening 51 by connecting the first flange 61 and the second flange 52 after the anti-wear cylinder 6 is inserted into the inner cylinder of the blanking opening 51. The anti-wear cylinder 6 and the blanking opening 51 are arranged to be of a detachable connection structure, so that the subsequent anti-wear cylinder 6 can be replaced conveniently, and the anti-wear cylinder 6 can be taken out from the inner cylinder of the blanking opening 51 only by detaching the connection bolts between the first flange 61 and the second flange 52.
The anti-wear cylinder 6 in the embodiment is made of Q345R steel, and the wall thickness of the anti-wear cylinder 6 is 38-45 mm. The most preferred value for the wall thickness of the wear resistant cylinder 6 is 40 mm, considering the processing cost and the multiple factors of being subjected to broiling, adhering and rubbing.
As shown in fig. 3 and 5, in order to prevent gas such as gas in the flue 2 from leaking into the external environment through the anti-wear cylinder 6, a nitrogen sealing device 7 is fixedly arranged on the top of the anti-wear cylinder 6. The structure of the nitrogen sealing device 7 comprises: the cylindrical inner coaming 71, the cylindrical outer coaming 72, the upper flange 73 and the lower flange 74 enclose the cylindrical inner coaming 71, the cylindrical outer coaming 72, the upper flange 73 and the lower flange 74 to form an annular sealing cavity 70, and the annular sealing cavity 70 is connected with the first flange 61 through the lower flange 74, so that the nitrogen sealing device 7 is sealed and fixed on the top of the anti-abrasion cylinder 6. At least one nitrogen inlet pipe 8 is arranged on the cylindrical peripheral plate 72, the air outlet of each nitrogen inlet pipe 8 is communicated with the annular sealing cavity 70, a plurality of small hole channels 9 are formed on the cylindrical inner peripheral plate 71 along the circumferential direction, and nitrogen ejected from each small hole channel 9 forms a nitrogen sealing layer for preventing gases such as coal gas from leaking outwards through the anti-abrasion cylinder 6.
As shown in fig. 6, the inclination angle α of the axis of each orifice passage 9 with respect to the sealing surface of the upper flange 73 is 25 ° to 50 °. The nitrogen sealing layer formed by spraying from each small hole channel 9 which is obliquely arranged forms inward pressing force on gas and the like, so that the gas and the like in the flue 2 can be better prevented from leaking into the external environment through the anti-abrasion cylinder 6. The inclination angle alpha of the axial lead of each small hole channel 9 relative to the sealing surface of the upper flange 73 is the optimal inclination scheme when the inclination angle alpha is 30 degrees.
The rest of the structure and the use mode are the same as those of the first embodiment, and are not repeated.
The structure of the blanking port device 5 effectively improves the defects that the blanking port 51 deforms, cracks, leaks and the like after about six months, greatly prolongs the service life of the blanking port 51, and can still reach more than two years even if used in the working condition that bulk raw materials are stainless steel raw materials, greatly improves the quality of a forced circulation cooling flue at the converter mouth and accelerates the production rhythm. During replacement, only the anti-abrasion cylinder body 6 needs to be replaced, the blanking opening 51 does not need to be replaced, replacement is very convenient, and production cost is greatly saved.
The above description is only of the preferred embodiment of the present invention, and is not intended to limit the present invention in any other way, but any modifications or equivalent variations according to the technical spirit of the present invention are still included in the scope of the present invention.
The invention has the advantages that: (1) the heat receiving pipes 21 extending into the header 31 are fixedly connected to the inner side wall of the header 31 by welding and sealing, sealing welding seams are formed on the heat receiving pipes 21 and the inner side wall of the header 31, and the sealing welding seams on the inner side wall of the header 31 are in an uncompressed state, so that the sealing connection between the heat receiving pipes 21 and the header 31 is very firm, and the water leakage phenomenon is not easy to occur; (2) the arrangement of the throttle pipe 4 increases the flow velocity of water flowing into the heat-receiving pipes 21 from the header 31 and increases the resistance so that the water in the header 31 can uniformly enter each heat-receiving pipe 21, thereby effectively improving the frequent pipe bursting phenomenon of each heat-receiving pipe 21 caused by uneven water inflow, greatly prolonging the service life and the utilization coefficient of the forced circulation cooling flue and reducing the labor intensity of workers. The service life of the forced circulation cooling flue can be longer than two years, and the steel making is not influenced by water leakage for about one and a half years.
Claims (6)
1. Forced circulation cooling flue includes: the lower header group, the flue and the upper header group, a plurality of heated pipes in the flue are welded to form a cylindrical membrane wall structure, and the device is characterized in that: the water inlets of the heated pipes respectively penetrate through the corresponding through holes in the header of the lower header group and extend into the header, and the heated pipes extending into the header are fixedly connected to the inner side wall of the header through welding and sealing; a water inlet of each heat receiving pipe is respectively provided with a throttle pipe, the tail part of each throttle pipe is inserted into the corresponding heat receiving pipe through the water inlet of the corresponding heat receiving pipe, a circular channel and a conical channel are sequentially arranged in the throttle pipe from the head part to the tail part, and the small end of the conical channel is in smooth transition connection with the circular channel;
be provided with feed opening device on the flue, feed opening device include: the anti-wear cylinder is inserted into an inner cylinder of the blanking opening and then connected with the inner cylinder through the first flange, so that the anti-wear cylinder is fixed in the inner cylinder of the blanking opening, and the top of the anti-wear cylinder is also fixedly provided with a nitrogen sealing device; the structure of the nitrogen sealing device comprises: the cylindrical inner coaming, the cylindrical outer coaming, the upper flange and the lower flange are surrounded to form an annular sealing cavity, and the annular sealing cavity is connected with the first flange through the lower flange; at least one nitrogen inlet pipe is arranged on the cylindrical peripheral plate, the air outlet of each nitrogen inlet pipe is communicated with the annular sealing cavity, a plurality of small hole channels are formed in the cylindrical inner peripheral plate along the circumferential direction, and nitrogen ejected from each small hole channel forms a nitrogen sealing layer.
2. The forced circulation cooling flue according to claim 1, wherein: flanges are arranged at the head parts of the throttle pipes, and when the tail parts of the throttle pipes are inserted into the corresponding heat receiving pipes through the water inlets of the corresponding heat receiving pipes, the flanges are fixedly connected to the water inlet ends of the corresponding heat receiving pipes.
3. The forced circulation cooling flue according to claim 1, wherein: the anti-wear cylinder is made of Q345R steel, and the wall thickness of the anti-wear cylinder is 38-45 mm.
4. A forced circulation cooling tunnel according to claim 3, characterized in that: the wall thickness of the anti-abrasion cylinder body is 40 mm.
5. The forced circulation cooling flue according to claim 1, wherein: the inclination angle alpha of the axial lead of each small hole channel relative to the sealing surface of the upper flange is 25-50 degrees.
6. The forced circulation cooling flue according to claim 5, wherein: the inclination angle alpha of the axial lead of each small hole channel relative to the sealing surface of the upper flange is 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811599921.9A CN109576436B (en) | 2018-12-26 | 2018-12-26 | Forced circulation cooling flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811599921.9A CN109576436B (en) | 2018-12-26 | 2018-12-26 | Forced circulation cooling flue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109576436A CN109576436A (en) | 2019-04-05 |
| CN109576436B true CN109576436B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811599921.9A Active CN109576436B (en) | 2018-12-26 | 2018-12-26 | Forced circulation cooling flue |
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| Country | Link |
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| CN (1) | CN109576436B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112680560B (en) * | 2020-12-08 | 2022-04-15 | 苏州海陆重工股份有限公司 | Waste heat boiler in converter dry dedusting system |
| CN112695150A (en) * | 2021-01-26 | 2021-04-23 | 唐山市三川钢铁机械制造有限公司 | Partition plate cooling type scrap steel batching port and manufacturing method thereof |
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| 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 |
| CN101693937A (en) * | 2009-10-26 | 2010-04-14 | 江阴海陆冶金设备制造有限公司 | Method for distributing Y-branch fitting water at mouth section of evaporation cooling flue of steel converter |
| CN103063048A (en) * | 2013-01-29 | 2013-04-24 | 北京世纪源博科技股份有限公司 | Horizontal evaporative cooling flue for steelmaking electric furnace |
| CN205188336U (en) * | 2015-12-07 | 2016-04-27 | 无锡翔龙环球科技股份有限公司 | Converter exhaust heat boiler fire door section flue |
| CN209759491U (en) * | 2018-12-26 | 2019-12-10 | 苏州海陆重工股份有限公司 | Forced circulation cooling flue |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL3159639T3 (en) * | 2015-10-20 | 2020-06-29 | Danieli Corus Bv | Process for cleaning furnace gas |
-
2018
- 2018-12-26 CN CN201811599921.9A patent/CN109576436B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN101693937A (en) * | 2009-10-26 | 2010-04-14 | 江阴海陆冶金设备制造有限公司 | Method for distributing Y-branch fitting water at mouth section of evaporation cooling flue of steel converter |
| CN103063048A (en) * | 2013-01-29 | 2013-04-24 | 北京世纪源博科技股份有限公司 | Horizontal evaporative cooling flue for steelmaking electric furnace |
| CN205188336U (en) * | 2015-12-07 | 2016-04-27 | 无锡翔龙环球科技股份有限公司 | Converter exhaust heat boiler fire door section flue |
| CN209759491U (en) * | 2018-12-26 | 2019-12-10 | 苏州海陆重工股份有限公司 | Forced circulation cooling flue |
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| CN109576436A (en) | 2019-04-05 |
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