CN106807930B - A kind of large ladle furnace hot repair is tumbled a dust removal method - Google Patents
A kind of large ladle furnace hot repair is tumbled a dust removal method Download PDFInfo
- Publication number
- CN106807930B CN106807930B CN201611225759.5A CN201611225759A CN106807930B CN 106807930 B CN106807930 B CN 106807930B CN 201611225759 A CN201611225759 A CN 201611225759A CN 106807930 B CN106807930 B CN 106807930B
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- CN
- China
- Prior art keywords
- ladle
- slide gate
- repair
- gate nozzle
- dust removal
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- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/001—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like devices for cleaning ladles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/52—Manufacturing or repairing thereof
-
- 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
Abstract
A kind of large ladle furnace hot repair is tumbled a dust removal method, and converter steeling technology field is belonged to.Step are as follows: slide gate nozzle dust excluding hood is set in slide gate nozzle upper side, slide gate nozzle dedusting electrically operated valve is set on slide gate nozzle cleaning shaft, slide gate nozzle cleaning shaft accesses dust pelletizing system；Electronic mobile dust excluding hood vehicle is set in steel ladle cover upper side, movable dust removal cover vehicle electrically operated valve and telescopic sleeve are set on movable dust removal cover vehicle cleaning shaft, movable dust removal cover vehicle cleaning shaft accesses dust pelletizing system；When ladle-pot hot-repair operates, by ladle handling to ladle-pot hot-repair tilting bed, electronic mobile dust excluding hood vehicle reaches dedusting and waits position, after ladle topples over placement, electronic mobile dust excluding hood vehicle reaches dedusting working position, slide gate nozzle dedusting electrically operated valve and movable dust removal cover vehicle electrically operated valve are successively opened, is dusted.The advantage is that hot fume can be effectively prevent excessive；Guarantee dust removing effects, realizes dust pelletizing system energy conservation.
Description
Technical field
The invention belongs to converter steeling technology field, in particular to a kind of large ladle furnace hot repair is tumbled a dust removal method.This
Invention is suitable for the hot repair of steel industry large ladle furnace and tumbles position, and the ash-laden gas generated when toasting to ladle-pot hot-repair traps.
Background technique
In convertor steelmaking process, ladle is that a kind of essential molten iron leads fortune equipment, and frequency of use is very high, ladle
Maintenance work it is most important.Ladle-pot hot-repair tumbles position during ladle-pot hot-repair baking, can generate a large amount of flue dust, with
National environmental protection policy and occupational health standard it is increasingly strict, improve ladle-pot hot-repair and tumble the work situation of position, prevent cigarette
Pollution of the dirt to atmosphere is always one of environmental engineering design and important topic of management.
It tumbles position currently, ladle can be all arranged to large ladle furnace (>=150t) in iron and steel enterprise, a cleaning shaft of tumbling is set
It sets and is substantially fixed on ladle and tumbles on the downside of mobile platform, limited by ladle height and operating condition, distance is arranged in dust excluding hood
Dirt source point is farther out.Internal temperature is higher when ladle-pot hot-repair, and generally 800-1000 DEG C, steel ladle cover remains turned-off shape for the sake of safety
State is reserved with to feed intake on steel ladle cover and uses hole.When slide gate nozzle replaces coaloust-oxygen gun cleaning, larger positive pressure is generated inside ladle, is produced
Raw flue dust seriously leaks from hole etc. at the top of the mouth of a river, backpack cover gap, backpack cover.The hot fume of generation is not ideal vertical
State is diffused up, existing dust excluding hood setting not can guarantee hot fume and all trap, and cause ladle baking post dust concentration tight
Weight is exceeded, can not normal operating, influence post personnel health, and pollute workshop internal pair production operating environment.Secondly, at present
Steel mill tumble position transformation when, due to tumble mobile platform influence production operation, mobile platform is no longer arranged, therefore existing dust removing tube
Road mode can not be arranged, and ladle-pot hot-repair position of tumbling needs a kind of completely new effective dedusting method.
Summary of the invention
It tumbles a dust removal method the purpose of the present invention is to provide a kind of large ladle furnace hot repair, solves conventional pipelines arrangement
Mode dust excluding hood position compared with it is high, apart from dirt source point farther out, the problem that dust excluding hood volume is small, dust catching effect is poor.Effectively
It realizes that ladle-pot hot-repair toasts operating process cleanliness without any pollution, and passes through the setting of movable dust removal cover vehicle, facilitate overhead traveling crane handling ladle.
A kind of large ladle furnace hot repair is tumbled a dust removal method, and specific step and parameter is as follows:
1, sliding water is arranged in slide gate nozzle upper side in the running track of the hot fume generated when according to slide gate nozzle hot repair
Mouth dust excluding hood 1, is arranged slide gate nozzle dedusting electrically operated valve 4, final slide gate nozzle cleaning shaft on slide gate nozzle cleaning shaft 2
2 access dust pelletizing systems.
2, according to the running track of the thermogenetic flue gas of steel ladle cover when ladle-pot hot-repair, electric moving is set in steel ladle cover upper side
Dynamic dust excluding hood vehicle 3, is arranged movable dust removal cover vehicle electrically operated valve 5 and telescopic sleeve 7, most on movable dust removal cover vehicle cleaning shaft 8
Whole movable dust removal cover vehicle cleaning shaft 8 accesses dust pelletizing system.
3, when ladle-pot hot-repair tumbles position without ladle-pot hot-repair operation, slide gate nozzle dedusting electrically operated valve 4 and movable dust removal
Cover vehicle electrically operated valve 5 is in closed state, saves dust pelletizing system energy consumption.
4, when making steel ladle in workshop hot repair operating in the production line, ladle handling to ladle-pot hot-repair tumbled by overhead traveling crane flat
Platform, electronic mobile dust excluding hood vehicle 3 reach dedusting by track and wait position.It is electronic after ladle topples over placement by ladle tilting mechanism
Movable dust removal cover vehicle 3 reaches dedusting working position by track.Ladle-pot hot-repair work successively opens slide gate nozzle in 2-5 minutes before starting
Dedusting electrically operated valve 4 and movable dust removal cover vehicle electrically operated valve 5, are dusted.After the completion of ladle-pot hot-repair operation, sliding is successively closed
Mouth of a river dedusting electrically operated valve 4 and movable dust removal cover vehicle electrically operated valve 5, electronic mobile dust excluding hood vehicle 3 reach dedusting etc. by track
To position, after ladle is horizontally arranged by ladle tilting mechanism, ladle is hung away by overhead traveling crane.Repeatedly, ladle-pot hot-repair is completed to tumble
The trapping work of position ladle-pot hot-repair hot fume.
The present invention has the advantages that
1) setting of dust excluding hood position is configured according to the motion profile of technique production operation hot fume, can will be produced
Raw hot fume traps substantially to be finished.
2) design of the electronic movable dust removal cover vehicle dust excluding hood of ladle, it is closer apart from dirt source point, cover mouth can area coverage it is bigger,
Substantially steel ladle opening can all be covered, cover volume is bigger, and it is excessive that hot fume can be effectively prevented.
3) cleaning shaft valve is all made of the electrically operated valve that aperture can arbitrarily be set, and is conducive to entire dust-extraction unit air quantity
The realization of balance guarantees the air quantity for each removing dirt pits, is more advantageous to guarantee dust removing effects.
4) ladle-pot hot-repair intermittent operation passes through unlatching/closing of 2 electrically operated valves according to production needs, may be implemented to remove
Dirt energy saving of system.
5) can control the size of movable dust removal cover sewing gap by telescopic sleeve, minimum limit reduces the cold wind of sucking,
Guarantee good dust removing effects and reaches energy saving purpose.
Although 6) present invention is to be dusted design by taking 300t ladle as an example, its application is not limited to 300t ladle hot
Station of tumbling is repaired, guidance and reference function are all had to the tumble dust catching of station of other tonnage ladle-pot hot-repairs.
Detailed description of the invention
Fig. 1 is plan view of the invention.Wherein, slide gate nozzle dust excluding hood 1, slide gate nozzle cleaning shaft 2, electronic movement remove
Dust hood vehicle 3, slide gate nozzle dedusting electrically operated valve 4, movable dust removal cover vehicle electrically operated valve 5, movable dust removal cover sewing gap 6, telescopic
Pipe 7, movable dust removal cover vehicle cleaning shaft 8.
Fig. 2 is A-A cross-section diagram of the invention.Wherein, slide gate nozzle dust excluding hood 1, slide gate nozzle cleaning shaft 2, ladle move
Dynamic dust excluding hood vehicle 3.
Fig. 3 is B-B cross-section diagram of the invention.Wherein, electronic mobile dust excluding hood vehicle 3, movable dust removal cover vehicle electrically operated valve 5,
Movable dust removal cover sewing gap 6, telescopic sleeve 7, movable dust removal cover vehicle cleaning shaft 8.
Specific embodiment
A kind of large ladle furnace hot repair is tumbled a dust removal method, and specific step and parameter is as follows:
1, sliding water is arranged in slide gate nozzle upper side in the running track of the hot fume generated when according to slide gate nozzle hot repair
Mouth dust excluding hood 1, is arranged slide gate nozzle dedusting electrically operated valve 4, final slide gate nozzle cleaning shaft on slide gate nozzle cleaning shaft 2
2 access dust pelletizing systems.
2, according to the running track of the thermogenetic flue gas of steel ladle cover when ladle-pot hot-repair, electric moving is set in steel ladle cover upper side
Dynamic dust excluding hood vehicle 3, is arranged movable dust removal cover vehicle electrically operated valve 5 and telescopic sleeve 7, most on movable dust removal cover vehicle cleaning shaft 8
Whole movable dust removal cover vehicle cleaning shaft 8 accesses dust pelletizing system.
3, when ladle-pot hot-repair tumbles position without ladle-pot hot-repair operation, slide gate nozzle dedusting electrically operated valve 4 and movable dust removal
Cover vehicle electrically operated valve 5 is in closed state, saves dust pelletizing system energy consumption.
4, it makes steel ladle in workshop to operate in the production line when needing hot repair, ladle handling is inclined to ladle-pot hot-repair by overhead traveling crane
Down tilt platform, electronic mobile dust excluding hood vehicle 3 reach dedusting by track and wait position.After ladle topples over placement by ladle tilting mechanism,
Electronic mobile dust excluding hood vehicle 3 reaches dedusting working position by track.Ladle-pot hot-repair work starts successively to open sliding water in first 5 minutes
Mouth dedusting electrically operated valve 4 and movable dust removal cover vehicle electrically operated valve 5, are dusted.After the completion of ladle-pot hot-repair operation, successively closes and slide
Dynamic mouth of a river dedusting electrically operated valve 4 and movable dust removal cover vehicle electrically operated valve 5, electronic mobile dust excluding hood vehicle 3 reach dedusting by track
Position is waited, after ladle is horizontally arranged by ladle tilting mechanism, is hung away ladle by overhead traveling crane.Repeatedly, ladle-pot hot-repair is completed to incline
Turn over the trapping work of a ladle-pot hot-repair hot fume.
Claims (2)
- A dust removal method 1. a kind of large ladle furnace hot repair is tumbled, which is characterized in that specific step and parameter is as follows:1) running track of the hot fume generated when according to slide gate nozzle hot repair is removed in slide gate nozzle upper side setting slide gate nozzle Slide gate nozzle dedusting electrically operated valve (4) are arranged on slide gate nozzle cleaning shaft (2), slide gate nozzle cleaning shaft in dust hood (1) (2) dust pelletizing system is accessed；2) according to the running track of the thermogenetic flue gas of steel ladle cover when ladle-pot hot-repair, electronic movement is set in steel ladle cover upper side and is removed Movable dust removal cover vehicle electrically operated valve (5) and telescopic sleeve is arranged in dust hood vehicle (3) on movable dust removal cover vehicle cleaning shaft (8) (7), movable dust removal cover vehicle cleaning shaft (8) accesses dust pelletizing system；3) when ladle-pot hot-repair tumbles position without ladle-pot hot-repair operation, slide gate nozzle dedusting electrically operated valve (4) and movable dust removal cover Vehicle electrically operated valve (5) is in closed state；4) when making steel ladle in workshop hot repair operating in the production line, by overhead traveling crane by ladle handling to ladle-pot hot-repair tilting bed, Electronic mobile dust excluding hood vehicle (3) reaches dedusting by track and waits position；After ladle topples over placement by ladle tilting mechanism, electric moving Dynamic dust excluding hood vehicle (3) reach dedusting working position by track；Ladle-pot hot-repair work successively opens slide gate nozzle in 2-5 minutes before starting Dedusting electrically operated valve (4) and movable dust removal cover vehicle electrically operated valve (5), are dusted.
- 2. the method according to claim 1, wherein hot repair has operated the step 4) ladle in the production line Cheng Hou successively closes slide gate nozzle dedusting electrically operated valve (4) and movable dust removal cover vehicle electrically operated valve (5), electronic mobile dust excluding hood Vehicle (3) reaches dedusting by track and waits position, after ladle is horizontally arranged by ladle tilting mechanism, is hung away ladle by overhead traveling crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225759.5A CN106807930B (en) | 2016-12-27 | 2016-12-27 | A kind of large ladle furnace hot repair is tumbled a dust removal method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611225759.5A CN106807930B (en) | 2016-12-27 | 2016-12-27 | A kind of large ladle furnace hot repair is tumbled a dust removal method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106807930A CN106807930A (en) | 2017-06-09 |
| CN106807930B true CN106807930B (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611225759.5A Active CN106807930B (en) | 2016-12-27 | 2016-12-27 | A kind of large ladle furnace hot repair is tumbled a dust removal method |
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| Country | Link |
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| CN (1) | CN106807930B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113199017B (en) * | 2021-04-28 | 2023-03-24 | 马钢集团设计研究院有限责任公司 | All-round hot repair system and method for molten steel tank |
| CN116213694B (en) * | 2022-12-30 | 2023-11-28 | 无锡巨力重工股份有限公司 | System integration multifunctional ladle hot repair vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020036380A (en) * | 2000-11-09 | 2002-05-16 | 이구택 | Ladle cleaning apparatus |
| CN201596766U (en) * | 2010-03-19 | 2010-10-06 | 宁波钢铁有限公司 | Movable air draft hood for ladle-pot hot-repair |
| CN202114256U (en) * | 2011-06-25 | 2012-01-18 | 首钢贵阳特殊钢有限责任公司 | Rotation dust removing device of ladle nozzle maintenance area |
| CN202461091U (en) * | 2011-12-26 | 2012-10-03 | 中冶南方工程技术有限公司 | Dust collection hood device |
| KR20120110573A (en) * | 2011-03-30 | 2012-10-10 | 현대제철 주식회사 | Apparatus of collecting dust of laddle |
| CN204769801U (en) * | 2015-07-21 | 2015-11-18 | 唐山钢铁集团有限责任公司 | Dust hood car is absorbed on portable top of ladle hot repair |
| CN204912241U (en) * | 2015-06-30 | 2015-12-30 | 无锡红旗除尘设备有限公司 | Entrapment of ladle hot repair station flue gas is filtered and is collected integrated device |
| CN204974664U (en) * | 2015-07-08 | 2016-01-20 | 河北钢铁股份有限公司承德分公司 | Portable dust collector |
-
2016
- 2016-12-27 CN CN201611225759.5A patent/CN106807930B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020036380A (en) * | 2000-11-09 | 2002-05-16 | 이구택 | Ladle cleaning apparatus |
| CN201596766U (en) * | 2010-03-19 | 2010-10-06 | 宁波钢铁有限公司 | Movable air draft hood for ladle-pot hot-repair |
| KR20120110573A (en) * | 2011-03-30 | 2012-10-10 | 현대제철 주식회사 | Apparatus of collecting dust of laddle |
| CN202114256U (en) * | 2011-06-25 | 2012-01-18 | 首钢贵阳特殊钢有限责任公司 | Rotation dust removing device of ladle nozzle maintenance area |
| CN202461091U (en) * | 2011-12-26 | 2012-10-03 | 中冶南方工程技术有限公司 | Dust collection hood device |
| CN204912241U (en) * | 2015-06-30 | 2015-12-30 | 无锡红旗除尘设备有限公司 | Entrapment of ladle hot repair station flue gas is filtered and is collected integrated device |
| CN204974664U (en) * | 2015-07-08 | 2016-01-20 | 河北钢铁股份有限公司承德分公司 | Portable dust collector |
| CN204769801U (en) * | 2015-07-21 | 2015-11-18 | 唐山钢铁集团有限责任公司 | Dust hood car is absorbed on portable top of ladle hot repair |
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| Publication number | Publication date |
|---|---|
| CN106807930A (en) | 2017-06-09 |
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