CN110923384A - Plugging device for preventing dust overflow of blast furnace taphole - Google Patents
Plugging device for preventing dust overflow of blast furnace taphole Download PDFInfo
- Publication number
- CN110923384A CN110923384A CN201911208614.8A CN201911208614A CN110923384A CN 110923384 A CN110923384 A CN 110923384A CN 201911208614 A CN201911208614 A CN 201911208614A CN 110923384 A CN110923384 A CN 110923384A
- Authority
- CN
- China
- Prior art keywords
- shutoff
- blast furnace
- iron
- steel construction
- overall framework
- 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.)
- Withdrawn
Links
- 239000000428 dust Substances 0.000 title claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 104
- 229910052742 iron Inorganic materials 0.000 claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 239000002893 slag Substances 0.000 claims abstract description 21
- 230000000903 blocking effect Effects 0.000 claims abstract description 17
- 238000010276 construction Methods 0.000 claims abstract description 17
- 238000010079 rubber tapping Methods 0.000 claims description 8
- 230000002265 prevention Effects 0.000 claims description 2
- 239000000779 smoke Substances 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 108010063955 thrombin receptor peptide (42-47) Proteins 0.000 description 2
- 206010010904 Convulsion Diseases 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/22—Dust arresters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/007—Fume suction nozzles arranged on a closed or semi-closed surface, e.g. on a circular, ring-shaped or rectangular surface adjacent the area where fumes are produced
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
Abstract
The invention relates to a blocking device for preventing dust overflow of a blast furnace taphole, belonging to the technical field of environment-friendly dust removal equipment of a blast furnace slag iron discharge system in the metallurgical industry. The technical scheme is as follows: set up a steel construction overall framework who fixes on stokehold platform (9) around iron notch (2), at steel construction overall framework's fixed shutoff roof (5) in the top, at steel construction overall framework's two sides fixed shutoff curb plate (7) respectively, at steel construction overall framework's fixed shutoff slag trap (6) in the front, steel construction overall framework, shutoff roof (5), shutoff slag trap (6), shutoff curb plate (7) and blast furnace body (1), wind gap platform (3), iron notch top suction hood (4), iron runner apron (8) and stokehold platform (9) constitute iron notch (2) regional confined space. The invention has the beneficial effects that: the smoke dust in the area of the iron notch can be completely sealed without overflowing, and then is discharged through the top suction inlet and the side suction inlet of the iron notch to enter a pipe network for purification.
Description
Technical Field
The invention relates to a blocking device for preventing dust overflow of a blast furnace taphole, belonging to the technical field of environment-friendly dust removal equipment of a blast furnace slag iron discharge system in the metallurgical industry.
Background
The blast furnace process flow generally comprises a feeding system, an air supply system, a cooling system, a coal gas recovery and dust removal system and an iron slag discharge system, and is a production process with particularly strong continuity. In the whole process, the furnace charge is from top to bottom, and the mutual contact of the coal gas from bottom to top is completed. Charging furnace materials into the furnace from the top of the furnace according to a certain proportion, blowing hot air heated to 1000-degree and 1300-degree by a hot blast furnace from an air port, burning coke in the furnace materials in front of the air port to generate high-temperature reducing gas, heating the furnace materials which slowly descend in the ascending process in the furnace, reducing oxides in iron ore to metallic iron, heating unreduced substances to form slag, realizing slag-iron separation, gathering the slag-iron in a hearth, and regularly discharging the slag and molten iron from the hearth to form a continuous operation process.
The blast furnace slag iron discharging system is a key link, a large-scale blast furnace discharges iron for about 12 times every day, the iron discharging time is about 2 hours every time, the iron discharging time is almost continuous all day long, 2.5 kilograms of smoke dust are generated in each ton of iron in the iron discharging period on average, and the environmental pollution is serious. During tapping, the smoke and dust is jetted from the tapping hole in a jet shape under the action of hot pressing and furnace pressure and rapidly rises and diffuses, and the main component of the smoke and dust is Tfe、FeO、Fe2O3And the like. The general tapping hole dust removal mode is that the tap hole top is inhaled formula and is added the tap hole side and inhale the formula, because the convulsions of dust excluding hood, forms a "negative pressure zone" between dust excluding hood and tap hole, and the flue gas speed that the tap hole erupted attenuates rapidly in this region, and flue gas stream motion trail takes place to change under the effect of negative pressure pipe network and gets into the dust excluding hood in, purifies and discharges through the pipe network. However, the flue gas dust removal effect is poor when the opening and the blocking are performed, mainly because the flue gas ejected from the taphole during the opening can instantly rush out of the top suction side suction negative pressure region under the high pressure in the furnace, and a large amount of smoke dust overflows. When the mouth is blocked, the smoke discharged from the iron mouth is increased suddenly, and a large amount of smoke dust is overflowed. Therefore, it is necessary to modify the taphole dust removal method based on the taphole side suction type of the taphole top suction type.
Disclosure of Invention
The invention aims to provide a blocking device for preventing dust overflow of a blast furnace taphole, which completely seals a taphole area, thoroughly seals smoke in the taphole area, and exhausts the smoke through a taphole top suction inlet and a side suction inlet, thereby effectively preventing the smoke from overflowing and solving the problems in the background technology.
The technical scheme of the invention is as follows:
the utility model provides a plugging device of blast furnace taphole prevention dust overflow, contains blast furnace body, iron notch, wind gap platform, iron notch top suction hood, iron runner apron and stokehold platform, sets up a steel construction overall framework who fixes on stokehold platform around the iron notch, fixes the shutoff roof at steel construction overall framework's top, fixes the shutoff curb plate respectively in two sides of steel construction overall framework, fixes the shutoff skimming plate in steel construction overall framework's front, steel construction overall framework, shutoff roof, shutoff skimming plate, shutoff curb plate and blast furnace body, wind gap platform, iron notch top suction hood, iron runner apron and stokehold platform constitute the regional airtight space of iron notch, be equipped with the door on shutoff curb plate and the shutoff skimming plate respectively.
The top suction inlet scoop is arranged on the plugging top plate, the iron notch top suction cover is fixed on the top suction inlet scoop, the side suction inlet scoop is respectively arranged on the plugging side plate close to the iron notch and the iron runner cover plate, and the top suction inlet scoop and the side suction inlet scoop are respectively connected with a dust removal pipe network through an exhaust fan.
The door of shutoff curb plate is the door that sideslips, and the door on the shutoff slag trap is positive door, sideslip door sliding connection is on steel construction overall framework.
The blast furnace tapping machine, the hydraulic gun, the cover uncovering machine and the side suction inlet are all located in a closed iron notch area space formed by a steel structure overall frame, a plugging top plate, a plugging slag baffle, a plugging side plate, a blast furnace body, an air port platform, an iron notch top suction cover, an iron runner cover plate and a furnace front platform.
The invention has the beneficial effects that: the smoke dust in the area of the iron notch can be completely sealed without overflowing, and then is discharged through the top suction inlet and the side suction inlet of the iron notch and enters a dust removal pipe network for purification; simple structure and low cost.
Drawings
FIG. 1 is a schematic diagram of background art;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a left side view of the present invention;
in the figure: the blast furnace comprises a blast furnace body 1, a taphole 2, a tuyere platform 3, a taphole top suction cover 4, a plugging top plate 5, a plugging slag trap 6, a plugging side plate 7, an iron runner cover plate 8, a stokehole platform 9, a side sliding door 10, an iron runner 11, taphole top suction overflow smoke 12, a slag trap 13 and a front door 14.
Detailed Description
The invention is further illustrated by way of example in the following with reference to the accompanying drawings.
Referring to the attached drawings 2-4, the blocking device for preventing dust overflow of the blast furnace taphole comprises a blast furnace body 1, a taphole 2, a tuyere platform 3, a taphole top suction hood 4, an iron runner cover plate 8 and a stokehold platform 9, wherein a steel structure overall frame fixed on the stokehold platform 9 is arranged around the taphole 2, a blocking top plate 5 is fixed at the top of the steel structure overall frame, blocking side plates 7 are respectively fixed on two side surfaces of the steel structure overall frame, a blocking slag baffle plate 6 is fixed on the front surface of the steel structure overall frame, the blocking top plate 5, the blocking slag baffle plate 6, the blocking side plates 7, the blast furnace body 1, the tuyere platform 3, the taphole top suction hood 4, the iron runner cover plate 8 and the stokehold platform 9 form a taphole 2 area closed space, and doors are respectively arranged on the blocking side plates 7 and the blocking slag baffle plate 6.
In this embodiment, referring to fig. 2-4, during installation, firstly, a whole steel structure overall frame is erected around the taphole 2 area, and is firmly fixed on the furnace platform ground, and the tapping machine, the hydraulic gun and the uncovering machine are also sealed inside, then a steel plate is welded on the steel structure overall frame, the whole taphole 2 area is completely sealed, a small door is respectively reserved on the front side and two side surfaces, and the small door on the side surface is a side sliding door 10, so that the operation of entering and exiting of personnel is facilitated. The 2 tops of taphole are inhaled the inlet scoop setting on the roof, set up taphole top suction hood 4 on the inlet scoop at top, and one setting of taphole side suction mouth is near the inside taphole of plugging device, and another setting is in iron runner cover plate 8 one side, and above three inlet scoop passes through air exhauster and dust removal pipe network connection, and the smoke and dust in 2 regions of taphole are discharged away at any time, and 2 regions of taphole top and shutoff slag trap 6 make detachable, the tapping machine hydraulic pressure big gun of being convenient for is changed and is maintained the sediment iron runner.
Claims (4)
1. The utility model provides a plugging device of blast furnace taphole prevention excessive dirt, contains blast furnace body (1), taphole (2), wind gap platform (3), taphole top suction hood (4), iron runner cover board (8) and stokehold platform (9), its characterized in that: set up a steel construction overall framework who fixes on stokehold platform (9) around iron notch (2), at steel construction overall framework's fixed shutoff roof (5) in the top, at two sides of steel construction overall framework fixed shutoff curb plate (7) respectively, at steel construction overall framework's fixed shutoff slag trap (6) in the front, steel construction overall framework, shutoff roof (5), shutoff slag trap (6), shutoff curb plate (7) and blast furnace body (1), wind gap platform (3), iron notch top suction hood (4), iron runner apron (8) and stokehold platform (9) constitute the regional airtight space of iron notch (2), be equipped with the door on shutoff curb plate (7) and the shutoff slag trap (6) respectively.
2. The blocking device for preventing the dust overflow of the tap hole of the blast furnace according to claim 1, which is characterized in that: the top suction inlet is arranged on the plugging top plate (5), the iron notch top suction cover (4) is fixed on the top suction inlet, side suction inlets are respectively arranged on the plugging side plate (7) close to the iron notch (2) and the iron groove cover plate (8), and the top suction inlet and the side suction inlets are respectively connected with a dust removal pipe network through an air exhauster.
3. The blocking device for preventing the dust overflow of the tap hole of the blast furnace according to claim 1, which is characterized in that: the door of the plugging side plate (7) is a side sliding door (10), the door on the plugging slag blocking plate (6) is a main door (14), and the side sliding door (10) is connected to the steel structure overall frame in a sliding mode.
4. The blocking device for preventing the dust overflow of the blast furnace taphole according to the claim 1-3, characterized in that: still contain blast furnace tapping machine, hydraulic pressure big gun and take off the lid machine in the constitution, blast furnace tapping machine, hydraulic pressure big gun take off the lid machine and the side is inhaled the inlet scoop and is all located by steel construction overall framework, shutoff roof (5), shutoff slag trap (6), shutoff curb plate (7) and blast furnace body (1), wind gap platform (3), iron notch top suction hood (4), iron runner apron (8) and stokehold platform (9) constitute in the regional confined space of iron notch (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911208614.8A CN110923384A (en) | 2019-11-30 | 2019-11-30 | Plugging device for preventing dust overflow of blast furnace taphole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911208614.8A CN110923384A (en) | 2019-11-30 | 2019-11-30 | Plugging device for preventing dust overflow of blast furnace taphole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110923384A true CN110923384A (en) | 2020-03-27 |
Family
ID=69848149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911208614.8A Withdrawn CN110923384A (en) | 2019-11-30 | 2019-11-30 | Plugging device for preventing dust overflow of blast furnace taphole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110923384A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115433795A (en) * | 2022-09-14 | 2022-12-06 | 唐山学院 | Device and method for preventing smoke dust from overflowing in blast furnace casting house |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05331512A (en) * | 1992-06-03 | 1993-12-14 | Kawasaki Steel Corp | Dust collector around iron tapping hole of blast furnace |
| CN201330259Y (en) * | 2008-12-30 | 2009-10-21 | 沈阳远大环境工程有限公司 | Blast furnace taphole-suspended lifting top-draft soot collector |
| CN107723400A (en) * | 2017-11-15 | 2018-02-23 | 江苏省冶金设计院有限公司 | A kind of blast furnace taphole Environmental-protecting dust-removing operating room |
| 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 |
| CN108517383A (en) * | 2018-06-13 | 2018-09-11 | 中冶京诚工程技术有限公司 | Blast furnace dedusting collection device |
| CN211814541U (en) * | 2019-11-30 | 2020-10-30 | 邯郸钢铁集团有限责任公司 | Plugging device for preventing dust overflow of blast furnace taphole |
-
2019
- 2019-11-30 CN CN201911208614.8A patent/CN110923384A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05331512A (en) * | 1992-06-03 | 1993-12-14 | Kawasaki Steel Corp | Dust collector around iron tapping hole of blast furnace |
| CN201330259Y (en) * | 2008-12-30 | 2009-10-21 | 沈阳远大环境工程有限公司 | Blast furnace taphole-suspended lifting top-draft soot collector |
| CN107723400A (en) * | 2017-11-15 | 2018-02-23 | 江苏省冶金设计院有限公司 | A kind of blast furnace taphole Environmental-protecting dust-removing operating room |
| 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 |
| CN108517383A (en) * | 2018-06-13 | 2018-09-11 | 中冶京诚工程技术有限公司 | Blast furnace dedusting collection device |
| CN211814541U (en) * | 2019-11-30 | 2020-10-30 | 邯郸钢铁集团有限责任公司 | Plugging device for preventing dust overflow of blast furnace taphole |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115433795A (en) * | 2022-09-14 | 2022-12-06 | 唐山学院 | Device and method for preventing smoke dust from overflowing in blast furnace casting house |
| CN115433795B (en) * | 2022-09-14 | 2023-12-05 | 唐山学院 | Device and method for preventing smoke dust from overflowing in blast furnace cast house |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200327 |