CN110331250B - Movable smoke hood for converter waste heat boiler - Google Patents
Movable smoke hood for converter waste heat boiler Download PDFInfo
- Publication number
- CN110331250B CN110331250B CN201910644207.5A CN201910644207A CN110331250B CN 110331250 B CN110331250 B CN 110331250B CN 201910644207 A CN201910644207 A CN 201910644207A CN 110331250 B CN110331250 B CN 110331250B
- Authority
- CN
- China
- Prior art keywords
- pipe
- spray heads
- water inlet
- water outlet
- lifting
- 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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- 239000002918 waste heat Substances 0.000 title claims abstract description 13
- 239000000779 smoke Substances 0.000 title abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000007921 spray Substances 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000009628 steelmaking Methods 0.000 description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 9
- 238000007664 blowing Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 2
- 238000011084 recovery 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
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 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
-
- 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
-
- 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)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a movable smoke hood for a converter waste heat boiler, which comprises the following components: the movable smoke hood body is connected with the water inlet header through a first branch pipe and is connected with the water outlet header through a second branch pipe, the water inlet header and the water outlet header are respectively connected with a lifting pipe, and each lifting pipe extends upwards out of the smoke hood platform from a pipeline telescopic port; and the annular cavities of all the annular cavities are respectively communicated with a high-pressure protective gas source through a gas pipe with a valve, and a plurality of rings of spray heads are arranged on the inner wall of each annular cavity from top to bottom. The invention has the advantage of high production safety.
Description
Technical Field
The invention relates to the technical field of steelmaking equipment, in particular to a movable smoke hood for a converter waste heat boiler.
Background
The waste heat boiler of the converter generally adopts a vaporization cooling flue structure to recycle the waste heat of coal gas, high-temperature flue gas and smoke dust when the converter of a steel enterprise blows oxygen to make steel, is directly interlocked with the production process of the converter, is used as a part of the converter steelmaking process to directly participate in steel making production, can collect the high-temperature flue gas in the process of smelting steel by the converter and cool down the high-temperature flue gas, meets the requirements of dust removal and coal gas recycling in the later stage of steelmaking, can generate a large amount of steam at the same time, is used for production and living, can greatly reduce the production and living costs, and has very important position in steel plants.
The converter exhaust-heat boiler mainly includes: the fixed petticoat pipe of stove mouth on the petticoat pipe platform of converter top is fixed to fixed mounting, and the upper end of the fixed petticoat pipe of stove mouth upwards stretches out and connects gradually hypomere cooling flue and upper segment cooling flue behind the petticoat pipe platform, and the lower extreme of the fixed petticoat pipe of stove mouth stretches out and connects movable petticoat pipe behind the petticoat pipe platform downwards, and wherein, the structure of movable petticoat pipe includes: the movable smoke cover body is formed by longitudinally superposing a plurality of horizontally placed annular heat exchange pipes, a water inlet and a water outlet are respectively arranged on each annular heat exchange pipe, the water inlet of each annular heat exchange pipe is respectively connected with the water inlet header through a first branch pipe, the water outlet of each annular heat exchange pipe is respectively connected with the water outlet header through a second branch pipe, and a lifting pipe is respectively connected to the water inlet header and the water outlet header and respectively extends out of the smoke cover platform from the pipeline expansion opening of the smoke cover platform. When converting, the motor drives the winding drum to rotate to loosen the lifting chain, and the movable smoke hood body is driven to descend and cover the converter mouth; when the converter is rocked, the motor drives the winding drum to rotate the winding lifting chain to drive the movable smoke hood body to lift and open the converter mouth, cooling water continuously enters the water inlet header through the lifting pipe connected with the water inlet header and then enters the annular heat exchange pipes through the first branch pipes in the process of passing through the annular heat exchange pipes, the cooling water exchanges heat with high-temperature flue gas generated by converter steelmaking to be converted into hot water and steam, and the converted hot water and steam enter the water outlet header through the second branch pipes, so that the high-temperature flue gas is cooled down, the high-temperature flue gas meets the requirements of dust removal and gas recovery in the later stage of steelmaking, and a large amount of steam is generated for production and life.
The movable hood has the following defects: in the blowing and shaking process, high-temperature yellow smoke and high-temperature flame which are dissipated from the converter mouth can emerge from gaps between the lifting pipes and the corresponding pipeline telescopic mouths and gaps between the lifting chains and the corresponding chain telescopic mouths, so that the environment is seriously polluted, the working condition is severe, and hidden dangers are buried for safe production.
Disclosure of Invention
The invention aims to provide a movable smoke hood for a converter waste heat boiler, which is high in production safety.
In order to achieve the above purpose, the invention adopts the following technical scheme: a movable hood for a converter waste heat boiler, comprising: the movable hood body is formed by longitudinally superposing a plurality of horizontally placed annular heat exchange pipes, each annular heat exchange pipe is respectively provided with a water inlet and a water outlet, the water inlet of each annular heat exchange pipe is respectively connected with the water inlet header through a first branch pipe, the water outlet of each annular heat exchange pipe is respectively connected with the water outlet header through a second branch pipe, and each lifting pipe is respectively connected with the water inlet header and the water outlet header and extends out of the hood platform from the pipeline expansion port of the hood platform; the method is characterized in that: the inner wall of each sleeve ring cavity is sequentially provided with a plurality of rings of spray heads from top to bottom, and when the high-pressure protective gas in the high-pressure protective gas source is sprayed out from the spray heads of the sleeve ring cavities through the air pipes, the high-pressure protective gas can form air seals between the lifting pipes and the corresponding sleeve ring cavities and between the lifting chains and the corresponding sleeve ring cavities.
Further, the foregoing movable hood for a converter exhaust-heat boiler, wherein: the inner wall of each lantern ring cavity is provided with 5 circles of spray heads from top to bottom in sequence, and each circle of spray heads consists of 16 spray heads.
Further, the foregoing movable hood for a converter exhaust-heat boiler, wherein: the nozzles of the spray heads on the cavities of each lantern ring are oriented in the same direction.
Through implementation of the technical scheme, the invention has the beneficial effects that: in the blowing and furnace shaking process, the gaps between the lifting pipes and the corresponding lantern ring cavities and the gaps between the lifting chains and the corresponding lantern ring cavities form air seals through high-pressure protective gas, so that high-temperature yellow smoke and high-temperature flame generated during converter steelmaking are effectively prevented from upwards emitting smoke hood platforms from the gaps between the lifting pipes and the corresponding lantern ring cavities and the gaps between the lifting chains and the corresponding lantern ring cavities to pollute the environment, the working condition is effectively improved, and the production safety is improved.
Drawings
Fig. 1 is a schematic structural view of a movable hood for a converter waste heat boiler according to the present invention.
Fig. 2 is an enlarged schematic view of the H site shown in fig. 1.
Fig. 3 is a top view of the collar cavity shown in fig. 1.
Detailed Description
As shown in fig. 1, 2 and 3, the movable hood for a converter waste heat boiler comprises: the movable hood body 3 is formed by longitudinally superposing a plurality of horizontally placed annular heat exchange pipes, each annular heat exchange pipe is respectively provided with a water inlet and a water outlet, the water inlet of each annular heat exchange pipe is respectively connected with the water inlet header 2 through a first branch pipe 8, the water outlet of each annular heat exchange pipe is respectively connected with the water outlet header 2 through a second branch pipe 9, a lifting pipe 10 is respectively connected to the water inlet header 2 and the water outlet header 4, and each lifting pipe 10 respectively extends upwards from the pipeline telescopic opening of the hood platform 1; the inner wall of each sleeve ring cavity 12 is sequentially provided with a plurality of rings of spray heads 16 from top to bottom, when the high-pressure protective gas in the high-pressure protective gas source 15 is sprayed out from the spray heads 16 of each sleeve ring cavity 12 through each air pipe 14, the high-pressure protective gas can form an air seal between the gaps between each lifting pipe 10 and the corresponding sleeve ring cavity 12 and between each lifting chain 7 and the corresponding sleeve ring cavity 12, so that converter furnace mouth flue gas is effectively prevented from escaping from the polluted environment downwards from the gaps between each lifting pipe 10 and the corresponding sleeve ring cavity 12 and between each lifting chain 7 and the corresponding sleeve ring cavity 12, the site environment is effectively improved, and the use safety is improved; in this embodiment, the inner wall of each collar cavity 12 is sequentially provided with 5 circles of spray heads 16 from top to bottom, each circle of spray heads 16 is composed of 16 spray heads, and the spray nozzles of each spray head 16 on each collar cavity 12 face the same direction, so that the air seal effect is good;
the working principle of the invention is as follows:
opening all valves 13, and allowing high-pressure protective gas in a high-pressure protective gas source 15 to enter the annular cavity 11 of each lantern ring cavity 12 through each gas pipe 14 and then be sprayed out through each corresponding spray head 16, so that gas seals are formed between gaps between each lifting pipe 10 and the corresponding lantern ring cavity 12 and gaps between each lifting chain 7 and the corresponding lantern ring cavity 12;
when converting, the motor 5 drives the winding drum 6 to rotate and loosen the lifting chain 7, and drives the movable smoke hood body 3 to descend and cover the converter mouth; when the converter is rocked, the motor 5 drives the winding drum 6 to rotate and wind the lifting chain 7, and the movable smoke hood body 3 is driven to ascend to open the converter mouth;
in the blowing and furnace shaking process, cooling water continuously enters the water inlet header 2 through the lifting pipe 10 connected with the water inlet header 2, then enters the annular heat exchange pipes through the first branch pipes 8, in the process that the cooling water passes through the annular heat exchange pipes, the cooling water exchanges heat with high-temperature flue gas generated in converter steelmaking to be converted into hot water and steam, and the converted hot water and steam enter the water outlet header 4 through the second branch pipes 9, so that the high-temperature flue gas is cooled down, the requirements of dust removal and gas recovery in the later stage of steelmaking are met, and a large amount of steam is generated for production and life;
in the blowing and furnace shaking process, due to the existence of the gas seal, high-temperature yellow smoke and high-temperature flame generated in converter steelmaking can not upwards emerge from the gaps between each lifting pipe and the corresponding lantern ring cavity and the gaps between each lifting chain and the corresponding lantern ring cavity to pollute the environment, so that the working condition is effectively improved, and the production safety is improved.
The invention has the advantages that: in the blowing and furnace shaking process, the gaps between the lifting pipes and the corresponding lantern ring cavities and the gaps between the lifting chains and the corresponding lantern ring cavities form air seals through high-pressure protective gas, so that high-temperature yellow smoke and high-temperature flame generated during converter steelmaking are effectively prevented from upwards emitting smoke hood platforms from the gaps between the lifting pipes and the corresponding lantern ring cavities and the gaps between the lifting chains and the corresponding lantern ring cavities to pollute the environment, the working condition is effectively improved, and the production safety is improved.
Claims (3)
1. A movable hood for a converter waste heat boiler, comprising: the movable hood body is formed by longitudinally superposing a plurality of horizontally placed annular heat exchange pipes, each annular heat exchange pipe is respectively provided with a water inlet and a water outlet, the water inlet of each annular heat exchange pipe is respectively connected with the water inlet header through a first branch pipe, the water outlet of each annular heat exchange pipe is respectively connected with the water outlet header through a second branch pipe, and each lifting pipe is respectively connected with the water inlet header and the water outlet header and extends out of the hood platform from the pipeline expansion port of the hood platform; the method is characterized in that: the inner wall of each sleeve ring cavity is sequentially provided with a plurality of rings of spray heads from top to bottom, and when the high-pressure protective gas in the high-pressure protective gas source is sprayed out from the spray heads of the sleeve ring cavities through the air pipes, the high-pressure protective gas can form air seals between the lifting pipes and the corresponding sleeve ring cavities and between the lifting chains and the corresponding sleeve ring cavities.
2. A movable hood for a converter waste heat boiler according to claim 1, wherein: the inner wall of each lantern ring cavity is provided with 5 circles of spray heads from top to bottom in sequence, and each circle of spray heads consists of 16 spray heads.
3. A movable hood for a converter waste heat boiler according to claim 1, wherein: the nozzles of the spray heads on the cavities of each lantern ring are oriented in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910644207.5A CN110331250B (en) | 2019-07-17 | 2019-07-17 | Movable smoke hood for converter waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910644207.5A CN110331250B (en) | 2019-07-17 | 2019-07-17 | Movable smoke hood for converter waste heat boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110331250A CN110331250A (en) | 2019-10-15 |
| CN110331250B true CN110331250B (en) | 2024-04-16 |
Family
ID=68145502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910644207.5A Active CN110331250B (en) | 2019-07-17 | 2019-07-17 | Movable smoke hood for converter waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110331250B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112662837B (en) * | 2020-12-08 | 2022-04-15 | 苏州海陆重工股份有限公司 | Skirt cover in converter waste heat boiler |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2811902Y (en) * | 2005-08-11 | 2006-08-30 | 首钢总公司 | Dry type seal device for moveable apron of rotary furnace |
| JP2009203531A (en) * | 2008-02-28 | 2009-09-10 | Jfe Steel Corp | Skirt sealing apparatus for converter waste gas treatment equipment |
| JP2009203530A (en) * | 2008-02-28 | 2009-09-10 | Jfe Steel Corp | Skirt sealing apparatus for converter waste gas treatment equipment |
| CN201406446Y (en) * | 2009-05-25 | 2010-02-17 | 中冶赛迪工程技术股份有限公司 | Movable gas hood for converter gas |
| CN102345872A (en) * | 2011-09-21 | 2012-02-08 | 苏州海陆重工股份有限公司 | Movable gas hood for exhaust-heat boiler |
| CN102434875A (en) * | 2011-09-21 | 2012-05-02 | 苏州海陆重工股份有限公司 | Method for treating high-temperature smoke at opening of waste heat boiler of converter |
| CN210458248U (en) * | 2019-07-17 | 2020-05-05 | 联峰钢铁（张家港）有限公司 | Movable smoke hood for converter waste heat boiler |
-
2019
- 2019-07-17 CN CN201910644207.5A patent/CN110331250B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2811902Y (en) * | 2005-08-11 | 2006-08-30 | 首钢总公司 | Dry type seal device for moveable apron of rotary furnace |
| JP2009203531A (en) * | 2008-02-28 | 2009-09-10 | Jfe Steel Corp | Skirt sealing apparatus for converter waste gas treatment equipment |
| JP2009203530A (en) * | 2008-02-28 | 2009-09-10 | Jfe Steel Corp | Skirt sealing apparatus for converter waste gas treatment equipment |
| CN201406446Y (en) * | 2009-05-25 | 2010-02-17 | 中冶赛迪工程技术股份有限公司 | Movable gas hood for converter gas |
| CN102345872A (en) * | 2011-09-21 | 2012-02-08 | 苏州海陆重工股份有限公司 | Movable gas hood for exhaust-heat boiler |
| CN102434875A (en) * | 2011-09-21 | 2012-05-02 | 苏州海陆重工股份有限公司 | Method for treating high-temperature smoke at opening of waste heat boiler of converter |
| CN210458248U (en) * | 2019-07-17 | 2020-05-05 | 联峰钢铁（张家港）有限公司 | Movable smoke hood for converter waste heat boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110331250A (en) | 2019-10-15 |
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