CN110306003A - Cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace - Google Patents

Cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace Download PDF

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Publication number
CN110306003A
CN110306003A CN201910561469.5A CN201910561469A CN110306003A CN 110306003 A CN110306003 A CN 110306003A CN 201910561469 A CN201910561469 A CN 201910561469A CN 110306003 A CN110306003 A CN 110306003A
Authority
CN
China
Prior art keywords
dust excluding
excluding hood
tap drain
cast house
dust
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.)
Pending
Application number
CN201910561469.5A
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Chinese (zh)
Inventor
卫军民
刘安民
冯伟
杨军军
孙卫平
唐晓东
李海宁
高玉山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Longmen Iron and Steel Co Ltd
Original Assignee
Shaanxi Longmen Iron and Steel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shaanxi Longmen Iron and Steel Co Ltd filed Critical Shaanxi Longmen Iron and Steel Co Ltd
Priority to CN201910561469.5A priority Critical patent/CN110306003A/en
Publication of CN110306003A publication Critical patent/CN110306003A/en
Pending legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B7/00Blast furnaces
    • C21B7/14Discharging devices, e.g. for slag
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21BMANUFACTURE OF IRON OR STEEL
    • C21B7/00Blast furnaces
    • C21B7/22Dust arresters
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)

Abstract

The invention discloses cast house totally enclosed type dust excluding hoods before a kind of State of Blast Furnace, including the total dust excluding hood being covered in cast house above tap drain for sealing tap drain and preventing flue dust from spreading, and it is covered on the cover plate assembly on iron runner in cast house, slag runner and emergency molten iron flow channel for sealing and preventing flue dust from spreading;Total dust excluding hood and every group of cover plate assembly detachably and are tightly connected;Total dust excluding hood includes the tap drain dust excluding hood for being sequentially communicated setting, intermediate dust excluding hood and skimming tool dust excluding hood;It is removably connected with the first cleaning shaft at the top of ditch dust excluding hood and above tap drain, the side of intermediate dust excluding hood is connected with the second cleaning shaft;By using the detachable dust excluding hood in the present invention, stokehold cast house flue dust can be made effectively to be collected, cast house environment is improved significantly.

Description

Cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace
[technical field]
The invention belongs to blast furnaces to produce technical field of environment protection equipment, and in particular to cast house seals entirely before a kind of State of Blast Furnace Enclosed dust excluding hood.
[background technique]
Blast furnace is to do furnace shell with steel plate, builds fireproof brick inner lining in shell.Blast-furnace body is divided into furnace throat, shaft, furnace from top to bottom Five part of waist, bosh and cupola well.Since blast furnace technology economic indicator is good, simple process, output is big, labour production effect Rate is high, low power consumption and other advantages, therefore the iron of this method production accounts for the overwhelming majority of world iron total output.Cast house is blast furnace ironmaking The discharge of final products molten iron and clinker and collection location are the operation areas of high temperature before State of Blast Furnace, more dirt, labor intensive.
Smoke pollution in blast furnace production process mostlys come from blast furnace gas and the corresponding cast house part of tapping hole, and Wherein the dust pollution of cast house is mainly blast furnace in the volume of smoke opened, stifled iron notch and tapping during generate, fugitive dust Point is mainly distributed on the positions such as tap drain (tapping hole to skimming tool part), slag notch, skimming tool, iron runner, slag runner.Tap drain is tapping The channel of part, is equipped with skimming tool at the end of tap drain mouthful between skimming tool, by skimming tool by the molten iron in tap drain point For scum and molten iron, molten iron is flowed in iron runner, and scum is flowed in slag runner and is discharged.In addition, being also provided with one in the side of tap drain Emergency molten iron flow channel when congestion occurs in current box drain road, can discharge molten iron by molten iron flow channel of meeting an urgent need in time, keep away Exempt from molten iron overflow drain and flows to cast house other parts.
In the prior art, between tapping hole and skimming tool, since the refractory life in iron runner is 40~50 days, institute With, it needing to modify iron runner every 40~50 days, the operation of trimming device is influenced when in order to avoid modifying on iron runner, Dust-extraction unit will not be usually laid on the iron leg ditch, that is, keeps outdoor open type operation, the flue dust generated in operation is voluntarily spread The problems such as speed is slow, and which results in the exhaust gas volumns generated in blast furnace production process is big, dust content high (grit is thin), and flue dust Unanimously be in disperse state, in addition blast furnace casting often, the time it is long, cause the entire space of cast house by flue dust, radiant heat And the pernicious gases such as CO, SO2 is seriously polluted.Therefore, iron field produced on-site operating environment is severe, makes to the health of employee At threat, part flue dust is diffused to outside workshop under abnormality, and ambient contamination is caused to form environmentally friendly event.
[summary of the invention]
The object of the present invention is to provide cast house totally enclosed type dust excluding hoods before a kind of State of Blast Furnace, to solve blast furnace discharge yard cigarette Dustiness contaminates serious problem.
The invention adopts the following technical scheme: cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace, including be covered on out Total dust excluding hood in iron field above tap drain for sealing tap drain and preventing flue dust from spreading, and it is covered on iron runner in cast house, slag Cover plate assembly on ditch and emergency molten iron flow channel for sealing and preventing flue dust from spreading;Total dust excluding hood and every group of cover plate assembly Detachable and sealed connection;
Total dust excluding hood includes the tap drain dust excluding hood for being sequentially communicated setting, intermediate dust excluding hood and skimming tool dust excluding hood;Tap drain removes Dust hood is covered on above the tap drain of tapping hole part, and intermediate dust excluding hood is covered on the master of part between tapping hole and skimming tool Above ditch, skimming tool dust excluding hood is covered on above skimming tool;It is removably connected at the top of tap drain dust excluding hood and above tap drain First cleaning shaft, the side of intermediate dust excluding hood are connected with the second cleaning shaft;
Cover plate assembly on iron runner is connected to the front end of skimming tool dust excluding hood, the lid met an urgent need on molten iron flow channel and slag runner Board group part is connected to the two sides of skimming tool dust excluding hood.
Further, tap drain dust excluding hood, intermediate dust excluding hood and skimming tool dust excluding hood are case shape, and space successively subtracts It is small;
Tap drain dust excluding hood, intermediate dust excluding hood and skimming tool dust excluding hood are made of the side plate and top plate being detachably connected;In Between the top panel of dust excluding hood and skimming tool dust excluding hood be inclined-plane, and close to tapping hole side be higher than far from tapping hole one Side.
Further, cover plate assembly includes being located at two pedestals in iron runner/slag runner/emergency molten iron flow channel two sides, and two Cover board is covered between a pedestal.
Further, side plate, top plate and cover board are disposed with steel plate layer, alumina silicate fireprotection layer and heat-insulated anti-from outside to inside Fire bed
Further, tap drain dust excluding hood top surface two sides are provided with the false ceiling being detachably connected, and false ceiling is located at The two sides of first cleaning shaft, electric rolling door is offered on a side of tap drain dust excluding hood, and electric rolling door is used for for work Make personnel's discrepancy.
Further, the equal parallel interval of the surrounding of cast house is provided with vertical smoke exhaust pipe.
Further, the side of intermediate dust excluding hood offers observation panel.
The beneficial effects of the present invention are: stokehold cast house can be made by the detachable dust excluding hood in the practical present invention Flue dust is effectively collected, and basic to realize zero flue dust outlet, cast house environment is improved significantly, and the flue dust of collection is led to It crosses cleaning shaft and is delivered to subsequent heat-exchange device and carry out heat recycling, reasonable utilization resource, dust excluding hood of the invention Rationally, structure is simple for design, easy to removal and installation, fully meets produced on-site demand.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram of cast house tapping hole dust excluding hood before a kind of State of Blast Furnace of the present invention;
Fig. 2 is cover board pedestal of the present invention and cover board concrete structure schematic diagram.
Wherein: 1. first cleaning shafts;2. false ceiling;3. intermediate dust excluding hood;4. the second cleaning shaft;5. molten iron of meeting an urgent need Circulation duct;6. smoke exhaust pipe;7. cover board;8. positioning pin;9. pedestal;10. alumina silicate fireprotection layer;11. heat-insulating, fire-preventing layer;12. iron Ditch;13. electric rolling door;14. observation panel;15. slag runner;16. skimming tool dust excluding hood.
[specific embodiment]
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The invention discloses cast house totally enclosed type dust excluding hoods before a kind of State of Blast Furnace, as shown in Figure 1, including being covered on tapping Total dust excluding hood in above tap drain for sealing tap drain and preventing flue dust from spreading, and it is covered on iron runner 12, slag in cast house Cover plate assembly on ditch 15 and emergency molten iron flow channel 5 for sealing and preventing flue dust from spreading;Described in total dust excluding hood and every group Cover plate assembly is detachable and is tightly connected.
Total dust excluding hood includes the tap drain dust excluding hood for being sequentially communicated setting, intermediate dust excluding hood 3 and skimming tool dust excluding hood 16.Tap drain Dust excluding hood is covered on above the tap drain of tapping hole part, and intermediate dust excluding hood 3 is covered on part between tapping hole and skimming tool Tap drain above, comb slag device dust excluding hood 16 is covered on above skimming tool.In the middle part of tap drain dust excluding hood front side board with intermediate dust excluding hood 3 it Between, be connected between intermediate 3 front side board of dust excluding hood and skimming tool dust excluding hood 16, make its it is internal form run-though space, make entirely to remove Dust hood forms an overall space, and is closed, and facilitates flue dust collecting, and be to be detachably connected between three, when out When iron field needs to modify, it can all separate and hang cast house.
Tap drain dust excluding hood, intermediate dust excluding hood 3 and skimming tool dust excluding hood 16 are case shape, and space is sequentially reduced.Tap drain Dust excluding hood, intermediate dust excluding hood 3 and skimming tool dust excluding hood 16 are made of the side plate and top plate being detachably connected.Intermediate dust excluding hood 3 Top panel with skimming tool dust excluding hood 16 is inclined-plane, and is higher than the side far from tapping hole close to the side of tapping hole.
Cover plate assembly on iron runner 12 is connected to the front end of skimming tool dust excluding hood 16, meet an urgent need molten iron flow channel 5 and slag runner Cover plate assembly on 15 is connected to the two sides of skimming tool dust excluding hood 16.
Iron runner part of the tap drain between tapping hole and skimming tool is mixed with molten iron and scum in it when work, can generate A large amount of pollution flue dust.Tap drain dust excluding hood covers on the top of tap drain, is case shape, is made of side plate and top plate, and inside is also set It is equipped with frame, frame is made of column and crossbeam, is specifically designed according to the actual situation, and material is generally fashioned iron.
In addition, being disposed with alumina silicate fireprotection layer 10 and heat-insulating, fire-preventing layer on the inner wall of each side plate and top plate 11, it is preferred that alumina silicate fireprotection layer 10 is alumina silicate felt, and heat-insulating, fire-preventing layer 11 is fire resistant coating.On the one hand molten iron scum is prevented Side plate and top plate are damaged, the heat losses of molten iron and scum are on the other hand reduced, keeps the heat in dust excluding hood.In order to Guarantee the flue dust flow efficiency in dust excluding hood, the interconnecting piece between the front side board and top plate of tap drain dust excluding hood can be set as chamfering Or fillet more meets flue dust flow feature for right angle, guarantees that flowing is unimpeded.
It is removably connected with the first cleaning shaft 1 at the top of tap drain dust excluding hood and above tap drain, passes through the first dust removing tube The flue dust inside tap drain dust excluding hood is drained in road 1, reduces fume amount, and connect at the top of tap drain dust excluding hood with the first cleaning shaft 1 Portion can make flue dust circulation more smooth to top bump.
Be connected with the second cleaning shaft 4 on one side plate of intermediate dust excluding hood 3, by the second cleaning shaft 4 can will in Between flue dust inside dust excluding hood 3 aspirated, reduce pollution smoke content, secondary dust removing, some residual flue dust can incline with it Oblique top surface flows in tap drain dust excluding hood, then is discharged by the first cleaning shaft 1.It is opened on another side plate of intermediate dust excluding hood 3 Equipped with observation panel 14, can be used to when putting molten iron in the molten iron state of dust excluding hood external observation tap drain.
Tap drain dust excluding hood top surface two sides are provided with the false ceiling 2 being detachably connected, and false ceiling 2 is located at the first dedusting The two sides of pipeline 1, can will be large-scale by the disassembly of false ceiling 2 because the two sides in tap drain are equipped with heavy mechanical equipment Mechanical equipment hangs out or hangs at the top of tap drain dust excluding hood, the convenient maintenance maintenance to mechanical equipment.One of tap drain dust excluding hood Electric rolling door 13 is installed, electric rolling door 13 is used to enter and leave for staff, another side is according to practical need on side plate It is configured, electric rolling door 13 also can be set into, window etc. also can be set.
It is set as being detachably connected between each false ceiling 2 and frame structure, is chosen as the common connection type such as bolt, It is convenient to hang false ceiling disassembly when modifying tap drain, to provide operating space.Moreover, operation equipment is had in tap drain two sides, When repairing or safeguarding, false ceiling 2 can be dismantled, and then operation equipment is hung out or hung in.Moreover, Settable also multiple positioning columns on frame, correspondence offers multiple location holes on each false ceiling 2, to facilitate to each False ceiling 2 is positioned, and guarantees that the position of disassembly fore-aft travel ceiling 2 is constant.
Skimming tool dust excluding hood 3 is also case shape, is made of frame 2, side plate and top plate, is constituted and connection type and tap drain Dust excluding hood is identical.Skimming tool dust excluding hood 3 is also used to be modified when tap drain for being covered on above skimming tool and collecting flue dust When, it dismantles and hangs above skimming tool, provide operating space for finishing personnel or vehicle.3 top plate of skimming tool dust excluding hood is inclined-plane, And the vertical range of its rear end and skimming tool is greater than the vertical range of front end and skimming tool, can flue dust be circulated backward, go forward side by side Enter intermediate dust excluding hood, and then is discharged by the second cleaning shaft 4.
The front end of skimming tool dust excluding hood 3 is detachably connected the cover plate assembly of iron runner 12, and iron runner 12 is by skimming tool mistake The channel that molten iron after filter is circulated, inside not too many flue dust, it is only necessary to which covering cover plate assembly prevents flue dust from spreading.It skims 3 other two side of slag device dust excluding hood is respectively connected to the cover plate assembly of emergency molten iron flow channel 5 and slag runner 15.
Cover plate assembly includes two pedestals 9 positioned at 12/ slag runner 15/ of iron runner emergency, 5 two sides of molten iron flow channel, two bottoms Cover board 7 is covered between seat 9, the two is detachably connected by positioning pin 8.Cover plate assembly is for covering in iron runner 12, slag runner 15 On emergency molten iron flow channel 5, prevent flue dust from spreading.
Iron runner 12 is the iron runner part of the molten iron circulation after skimming tool, and slag runner 15 is the slag runner after skimming tool, Emergency molten iron flow channel 5 is the dump molten iron channel enabled when iron runner or slag runner block.In this three channels A small amount of flue dust can be contained, it is only necessary to simply close.In addition, due to iron runner 12, slag runner 15 and emergency hot metal flow The side wall in thorough cut road 5 and bottom surface are that excavator is excavated, its surface irregularity after excavation, pedestal 9 can guarantee iron runner table Face smoothness, it is convenient to be connect with other devices or equipment.So pedestal 9 is equipped on side wall and bottom surface, so that its surface is flat It is whole, and be located by connecting by positioning pin 8, pedestal 9 in covering cover board 7, forms internal closed space, prevents outside flue dust above It lets out.Alumina silicate fireprotection layer 10 and heat-insulating, fire-preventing layer 11 are disposed on the bottom surface of cover board 7.
In addition, the equal parallel interval of surrounding in cast house is provided with vertical smoke exhaust pipe 6, smoke exhaust pipe 6 is hollow pipe, lower end Close to cast house floor, the flue dust on ground when putting molten iron can be discharged to outside and be handled, can also carried out by itself It is thermally conductive, conducive to the heat dissipation of tapping field device, and since it is in the setting of cast house circumferentially-spaced, can also prevent above blast furnace Pendant object enters cast house, plays a protective role.
The embodiment of the present invention be certain steel mill No. 1 blast furnace discharge yard design dust cover, the long 40m of tap drain dust excluding hood, Wide 15m, high 8m, intermediate dust excluding hood 3 is 14m long, width 10m, high 6m, and skimming tool dust excluding hood 16 is 3m long, width 3m, high 2m, and in iron runner 12, be laid with cover plate assembly on slag runner 15 and emergency molten iron flow channel 5, connected between each section it is seamless, it is existing in tapping The whole smoke dust in field, effect are very good.

Claims (7)

1. cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace, which is characterized in that including being covered in cast house above tap drain Total dust excluding hood for sealing tap drain and preventing flue dust from spreading, and be covered on iron runner in cast house (12), slag runner (15) and answer Cover plate assembly on anxious molten iron flow channel (5) for sealing and preventing flue dust from spreading;It is covered described in total dust excluding hood and every group Board group part is detachable and is tightly connected;
Total dust excluding hood includes the tap drain dust excluding hood for being sequentially communicated setting, intermediate dust excluding hood (3) and skimming tool dust excluding hood (16); The tap drain dust excluding hood is covered on above the tap drain of tapping hole part, and the intermediate dust excluding hood (3) is covered on tapping Between mouth and skimming tool above the tap drain of part, the skimming tool dust excluding hood (16) is covered on above skimming tool;The tap drain removes It is removably connected with the first cleaning shaft (1) at the top of dust hood and above tap drain, the side connection of the intermediate dust excluding hood (3) There are the second cleaning shaft (4);
Cover plate assembly on the iron runner (12) is connected to the front end of the skimming tool dust excluding hood (16), the emergency molten iron circulation Cover plate assembly on channel (5) and slag runner (15) is connected to the two sides of the skimming tool dust excluding hood (16).
2. cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace as described in claim 1, which is characterized in that the tap drain removes Dust hood, intermediate dust excluding hood (3) and skimming tool dust excluding hood (16) are case shape, and space is sequentially reduced;
The tap drain dust excluding hood, intermediate dust excluding hood (3) and skimming tool dust excluding hood (16) are by the side plate and top plate being detachably connected Composition;The top panel of the intermediate dust excluding hood (3) and skimming tool dust excluding hood (16) is inclined-plane, and high close to the side of tapping hole In the side far from tapping hole.
3. cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace as claimed in claim 2, which is characterized in that the cover board group Part includes being located at two pedestals (9) in iron runner (12)/slag runner (15)/emergency molten iron flow channel (5) two sides, two pedestals (9) cover board (7) are covered between.
4. cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace as claimed in claim 3, which is characterized in that the side plate, Top plate and cover board (7) are disposed with steel plate layer, alumina silicate fireprotection layer (10) and heat-insulating, fire-preventing layer (11) from outside to inside.
5. cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace as described in claim 3 or 4, which is characterized in that the master Ditch dust excluding hood top surface two sides are provided with the false ceiling (2) being detachably connected, and the false ceiling (2) is located at described first and removes The two sides of dirt pipeline (1) offer electric rolling door (13), the electric rolling door on one side of the tap drain dust excluding hood (13) for being entered and left for staff.
6. cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace as claimed in claim 5, which is characterized in that the cast house The equal parallel interval of surrounding be provided with vertical smoke exhaust pipe (6).
7. cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace as described in claim 3 or 4, which is characterized in that in described Between the side of dust excluding hood (3) offer observation panel (14).
CN201910561469.5A 2019-06-26 2019-06-26 Cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace Pending CN110306003A (en)

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CN201910561469.5A CN110306003A (en) 2019-06-26 2019-06-26 Cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172339A (en) * 2019-12-19 2020-05-19 中冶赛迪工程技术股份有限公司 Detachable residual iron runner dust excluding hood
CN113174454A (en) * 2021-04-30 2021-07-27 广东韶钢松山股份有限公司 Method for discharging residual iron from blast furnace and dust removal device
CN113604624A (en) * 2021-08-12 2021-11-05 中冶赛迪工程技术股份有限公司 Casting house platform structure with interlayer and use method
CN114381561A (en) * 2022-01-24 2022-04-22 中冶建筑研究总院有限公司 Heat and smoke control system for large and medium blast furnace cast house workshop
CN115044717A (en) * 2022-05-24 2022-09-13 中冶华天工程技术有限公司 Blast furnace system fly ash resource utilization method and device

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CN104313220A (en) * 2014-10-11 2015-01-28 江苏永钢集团有限公司 Dedusting structure of stokehold scrap iron runner of medium- and small-sized blast furnaces
CN207828337U (en) * 2018-01-17 2018-09-07 马钢集团设计研究院有限责任公司 Dust pelletizing system before a kind of State of Blast Furnace
CN108796159A (en) * 2018-06-29 2018-11-13 马钢集团设计研究院有限责任公司 A kind of modular removable formula blast furnace discharge yard combination dust-extraction unit
CN210420015U (en) * 2019-06-26 2020-04-28 陕西龙门钢铁有限责任公司 Blast furnace front cast house totally enclosed dust excluding hood

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Publication number Priority date Publication date Assignee Title
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CN203007292U (en) * 2012-12-31 2013-06-19 王鸿 Blast furnace tap hole smoke gathering device with high smoke gathering efficiency
CN103045784A (en) * 2013-01-06 2013-04-17 莱芜钢铁集团有限公司 Dust removing device for blast furnace casting house
CN104313220A (en) * 2014-10-11 2015-01-28 江苏永钢集团有限公司 Dedusting structure of stokehold scrap iron runner of medium- and small-sized blast furnaces
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111172339A (en) * 2019-12-19 2020-05-19 中冶赛迪工程技术股份有限公司 Detachable residual iron runner dust excluding hood
CN113174454A (en) * 2021-04-30 2021-07-27 广东韶钢松山股份有限公司 Method for discharging residual iron from blast furnace and dust removal device
CN113604624A (en) * 2021-08-12 2021-11-05 中冶赛迪工程技术股份有限公司 Casting house platform structure with interlayer and use method
CN114381561A (en) * 2022-01-24 2022-04-22 中冶建筑研究总院有限公司 Heat and smoke control system for large and medium blast furnace cast house workshop
CN115044717A (en) * 2022-05-24 2022-09-13 中冶华天工程技术有限公司 Blast furnace system fly ash resource utilization method and device

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