CN211814541U - 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
- CN211814541U CN211814541U CN201922110808.6U CN201922110808U CN211814541U CN 211814541 U CN211814541 U CN 211814541U CN 201922110808 U CN201922110808 U CN 201922110808U CN 211814541 U CN211814541 U CN 211814541U
- Authority
- CN
- China
- Prior art keywords
- plugging
- blast furnace
- iron
- platform
- shutoff
- 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.)
- Active
Links
Images
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model relates to a plugging 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 utility model relates to a plugging 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 is jetted from the tapping hole in a spray shape under the action of hot pressing and furnace pressure and rapidly rises and diffuses, and the main components of the smoke comprise Tfe, FeO and 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 utility model aims at providing a plugging device of blast furnace taphole prevention excessive dust seals the taphole region completely, thoroughly seals the cigarette dust in the taphole region to inhale the inlet scoop through the taphole top and the side is inhaled the inlet scoop and is discharged, prevents effectively that the smoke and dust is excessive, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
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 blocking device also comprises a blast furnace tapping machine, a hydraulic gun and a cover uncovering machine, wherein the blast furnace tapping machine, the hydraulic gun, the cover uncovering machine and the side suction inlet are all positioned in a closed iron notch area space formed by a steel structure overall frame, a blocking top plate, a blocking slag baffle, a blocking 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 utility model has the advantages 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 will be further explained by way of example 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 (3)
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: the method comprises the following steps that a steel structure overall frame fixed on a stokehole platform (9) is arranged around an iron notch (2), a plugging top plate (5) is fixed at the top of the steel structure overall frame, plugging side plates (7) are respectively fixed on two side faces of the steel structure overall frame, and a plugging slag trap (6) is fixed on the front face of the steel structure overall frame, wherein the steel structure overall frame, the plugging top plate (5), the plugging slag trap (6), the plugging side plates (7), a blast furnace body (1), a tuyere platform (3), an iron notch top suction hood (4), an iron runner cover plate (8) and the stokehole platform (9) form an iron notch (2) area closed space, and doors are respectively arranged on the plugging side plates (7) and the plugging slag trap (6);
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.
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 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.
3. The blocking device for preventing the dust overflow of the blast furnace taphole according to the claim 1 or 2, characterized in that: still contain blast furnace tapping machine, hydraulic pressure big gun and take off the lid machine among the plugging device, 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 in the regional confined space of iron notch (2) that platform (9) constitute before the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922110808.6U CN211814541U (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 |
|---|---|---|---|
| CN201922110808.6U CN211814541U (en) | 2019-11-30 | 2019-11-30 | Plugging device for preventing dust overflow of blast furnace taphole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211814541U true CN211814541U (en) | 2020-10-30 |
Family
ID=73031471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922110808.6U Active CN211814541U (en) | 2019-11-30 | 2019-11-30 | Plugging device for preventing dust overflow of blast furnace taphole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211814541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923384A (en) * | 2019-11-30 | 2020-03-27 | 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 CN201922110808.6U patent/CN211814541U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110923384A (en) * | 2019-11-30 | 2020-03-27 | 邯郸钢铁集团有限责任公司 | Plugging device for preventing dust overflow of blast furnace taphole |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111349793B (en) | Zinc recovery method and device for blast furnace or shaft furnace | |
| CN103993176B (en) | Oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction refining splicer skill | |
| WO2017107664A1 (en) | Valuable metal comprehensive recovery processing device and method | |
| CN110923384A (en) | Plugging device for preventing dust overflow of blast furnace taphole | |
| CN103993183B (en) | Oxygen-enriched top blowing melting-liquid high lead dross side-blown direct-reduction refines plumbous equipment | |
| CN211814541U (en) | Plugging device for preventing dust overflow of blast furnace taphole | |
| CN102899497A (en) | Zinc leaching slag treatment device and treatment process | |
| CN203807393U (en) | Coke side dedusting device | |
| CN201969720U (en) | Smoke gathering device for ladle refining furnace | |
| CN101666484A (en) | Horizontal type waste heat boiler of zinc-containing dust recovery system of rotary hearth furnace | |
| CN203498450U (en) | Side-blown reducing lead-zinc smelting equipment | |
| CN105506299A (en) | Low-grade secondary lead smelting slag fuming furnace treatment system and method | |
| CN209210896U (en) | A kind of processing system of iron content zinc powder dirt | |
| CN215163022U (en) | Fuming furnace for treating solid waste resource recycling | |
| CN211035811U (en) | Tamping coke oven coal-charging smoke dust treatment and coke oven flue gas purification coupling system | |
| CN202786369U (en) | Zinc-leached residue treating device | |
| CN104152678B (en) | A kind of device and technique thereof removing plumbous zinc element in iron ore | |
| CN210463961U (en) | Semi-closed dust excluding hood special for Consedi electric arc furnace | |
| CN211420053U (en) | Tamping coke oven coal-charging smoke dust treatment system | |
| CN108949245A (en) | A kind of coupling coal gasification realizes the device and method of blast furnace iron-making process carbon capture | |
| CN208586316U (en) | A kind of blast furnace residue channel slide cover board | |
| CN204939570U (en) | Flare system in aluminium moulding process | |
| CN204265787U (en) | A kind of converter mouth secondary flue gas seals catching apparatus | |
| CN209706554U (en) | A kind of energy saving and environment friendly Multi-functional smelting furnace | |
| CN201475968U (en) | Rotary furnace zincum-containing dust recovery system horizontal exhaust-heat boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |