CN103624362A - Blast furnace shell air opening flange hole forming method - Google Patents
Blast furnace shell air opening flange hole forming method Download PDFInfo
- Publication number
- CN103624362A CN103624362A CN201310616881.5A CN201310616881A CN103624362A CN 103624362 A CN103624362 A CN 103624362A CN 201310616881 A CN201310616881 A CN 201310616881A CN 103624362 A CN103624362 A CN 103624362A
- Authority
- CN
- China
- Prior art keywords
- furnace shell
- tuyere flange
- air opening
- opening flange
- flange hole
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/005—Machines, apparatus, or equipment specially adapted for cutting curved workpieces, e.g. tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K7/00—Cutting, scarfing, or desurfacing by applying flames
- B23K7/008—Preliminary treatment
Abstract
The invention discloses a blast furnace shell air opening flange hole forming method, and belongs to the technical field of blast furnace shell construction. The processing steps include air opening flange hole positioning, perforating die design and air opening flange hole forming, namely, firstly, a furnace shell plate is fixed to a perforating die, and the air opening flange hole is formed on a cutting bracket through a semi-automatic flame cutter or formed in a manual mode with the center line of the air opening flange hole as the center; secondly, in the perforating process, a point B serves as a perforating center control point, the maximum outer diameter of an air opening flange serves as the diameter, and cutting is carried out according to the included angle between a perforating cutting gun and the ground and the taper of the air opening flange; thirdly, the air opening flange is checked. The blast furnace shell air opening flange hole forming method has the advantages of forming the blast furnace air opening flange hole in a non-perpendicular tapered furnace shell plate surface in a factory and playing a role in guiding cutting of holes similar to large-diameter holes.
Description
Technical field
The invention belongs to last furnace shell technical field of construction, a kind of last furnace shell tuyere flange hole boring method is provided especially, be applicable to offering of last furnace shell tuyere flange hole.
Background technology
Blast-furnace tuyere flange band is generally cone band, has certain angle with ground.And tuyere flange bore dia on tuyere flange band is larger, and tuyere flange centerline hole and furnace shell plate face out of plumb, with ground level, tuyere flange is horizontally disposed with.Conventionally adopt rear manual offering is installed at the scene, perforate is second-rate.In order to solve above-mentioned difficult problem ，Wo company self-developing, go out a kind of last furnace shell tuyere flange hole boring method, realize the offering of blast-furnace tuyere flange hole of carrying out non-perpendicular conical furnace coverboard face in factory.
Summary of the invention
The object of the present invention is to provide a kind of last furnace shell tuyere flange hole boring method.Be applicable to various offering non-perpendicular to plate face large diameter hole.
The technical solution adopted in the present invention is:
1, location, tuyere flange hole
Tuyere flange hole rolls laggard row at steel plate and offers, pre-when assembled at tuyere flange band, utilizes total powerstation to carry out each tuyere flange center and gets ready.First at furnace shell plate 1 inwall, get inner side centre point A point, then A point is guided to furnace shell plate 1 outside B point, AB line is the tuyere flange centerline hole 2 of tuyere flange perforate;
Then utilize total powerstation and level meter on furnace shell plate 1, to find out the vertical center line of each tuyere flange and horizontal center line, then guide on furnace shell outer wall and position.
2, perforate matrix design
Design mold guarantees furnace shell tuyere flange centerline hole 2 vertical grounds.Because tuyere flange hole is uniformly distributed on furnace shell plate 1, during design mold, the appearance curved surface of mold is the inner circular arc of furnace shell plate 1.Furnace shell plate 1 can carry out in rotary moving on mold, thereby realizes offering of a plurality of holes on a furnace shell plate.
Mold is comprised of column 3 and support 4, and column 3 adopts I-steel, supports 4 employing laths and sets up.
3, tuyere flange hole is offered
Furnace shell plate 1 is fixed on perforate mold, adopts semiautomatic flame cutting machine 6 centered by tuyere flange centerline hole 2, to carry out offering of tuyere flange hole at cutting support 5 or manual methods.During perforate, take B point as control point, perforate center, and the maximum outside diameter of tuyere flange 7 of take is diameter, and perforate burning torch and ground angle cut with tuyere flange 7 taperings.
4, the inspection of tuyere flange
After tuyere flange hole is offered, on same mold, carry out the assembling of tuyere flange 7, and then check perforate quality.
The invention has the beneficial effects as follows, realize the offering of blast-furnace tuyere flange hole carry out non-perpendicular conical furnace coverboard face in factory, processing the directive function that is cut with of similar large diameter hole.
Accompanying drawing explanation
Fig. 1 last furnace shell tuyere flange layout drawing.
Fig. 2 tuyere flange hole network for location.Wherein furnace shell plate 1, tuyere flange centerline hole 2; A is centre point inside furnace shell, and B is centre point outside furnace shell.
Fig. 3 tuyere flange hole perforate mold elevation, its central post 3, supports 4.
Fig. 4 tuyere flange hole perforate mold is established side elevational view.
Fig. 5 tuyere flange hole perforate elevation, wherein cutter supporting frame 5, semiautomatic flame cutting machine 6.
Fig. 6 tuyere flange assembling operating mode one figure, wherein tuyere flange 7.
Fig. 7 tuyere flange assembling operating mode two figure.
The specific embodiment
The specific embodiment of the present invention adopts following steps construction:
1, last furnace shell tuyere flange centerline hole and furnace shell plate face out of plumb, with ground level (Fig. 1).
2, tuyere flange hole rolls laggard row at steel plate and offers, pre-when assembled at tuyere flange band, utilizes total powerstation to carry out each tuyere flange center and gets ready.First at furnace shell plate 1 inwall, get inner side centre point A point, then A point is guided to furnace shell plate 1 outside B point, AB line is tuyere flange centerline hole 2(Fig. 2 of tuyere flange perforate).
3, perforate matrix design
Mold, according to furnace shell plate 2 angle design, guarantees tuyere flange centerline hole 2 (Fig. 3, Fig. 4) perpendicular to the ground.Its central post 3 adopts I-steel, supports 4 employing steel plate bars.
4, tuyere flange hole is offered
This tuyere flange hole cutting adopts semi-automatic flame cutting 6 on cutting support 5, to cut (Fig. 5).After having cut a hole, revolving burner coverboard on mold, carries out offering of next hole.
5, tuyere flange inspection
After tuyere flange hole has been offered, carry out tuyere flange 7 trial assemblies (Fig. 6, Fig. 7), check perforate quality.
Claims (1)
1. a last furnace shell tuyere flange hole boring method, is characterized in that, processing step is:
(1) location, tuyere flange hole
Tuyere flange hole rolls laggard row at steel plate and offers, pre-when assembled at tuyere flange band, utilizes total powerstation to carry out each tuyere flange center and gets ready; First at furnace shell plate (1) inwall, get inner side centre point A point, then A point is guided to furnace shell plate (1) outside B point, AB line is the tuyere flange centerline hole (2) of tuyere flange perforate;
(2) perforate matrix design
Design mold guarantees furnace shell tuyere flange centerline hole (2) vertical ground, and furnace shell plate (1) carries out in rotary moving on mold, thereby realizes offering of a plurality of holes on a furnace shell plate; Mold is comprised of column (3) and support (4);
(3) tuyere flange hole is offered
Furnace shell plate (1) is fixed on perforate mold, adopts semiautomatic flame cutting machine (6) centered by tuyere flange centerline hole (2), to carry out offering of tuyere flange hole at cutting support (5) or manual methods; During perforate, take B point as control point, perforate center, and the maximum outside diameter of tuyere flange (7) of take is diameter, perforate burning torch and the cutting of the same tuyere flange of ground angle (7) tapering progress;
(4) inspection of tuyere flange
After tuyere flange hole is offered, on same mold, carry out the assembling of tuyere flange (7), and then check perforate quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616881.5A CN103624362A (en) | 2013-11-27 | 2013-11-27 | Blast furnace shell air opening flange hole forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310616881.5A CN103624362A (en) | 2013-11-27 | 2013-11-27 | Blast furnace shell air opening flange hole forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103624362A true CN103624362A (en) | 2014-03-12 |
Family
ID=50206005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310616881.5A Pending CN103624362A (en) | 2013-11-27 | 2013-11-27 | Blast furnace shell air opening flange hole forming method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103624362A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105583501A (en) * | 2016-02-20 | 2016-05-18 | 首钢水城钢铁(集团)赛德建设有限公司 | Method for assembly welding of tuyere, taphole frame and furnace body for blast furnace shell manufacturing |
| CN109666770A (en) * | 2018-12-28 | 2019-04-23 | 中国二冶集团有限公司 | The construction method of tuyere flange equipment mounting and adjusting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767243A (en) * | 2008-12-30 | 2010-07-07 | 上海宝冶建设有限公司 | Method for welding tuyere-cooler casing and blast furnace casing |
| CN102717177A (en) * | 2012-06-27 | 2012-10-10 | 武汉一冶钢结构有限责任公司 | Device and method for welding blast furnace flange |
| CN102728926A (en) * | 2012-06-19 | 2012-10-17 | 武汉一冶钢结构有限责任公司 | Cutting device and cutting method for flange hole |
| CN103394792A (en) * | 2013-08-09 | 2013-11-20 | 中国二十二冶集团有限公司 | Method for forming hole in bustle pipe of blast furnace blowing-in device |
-
2013
- 2013-11-27 CN CN201310616881.5A patent/CN103624362A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101767243A (en) * | 2008-12-30 | 2010-07-07 | 上海宝冶建设有限公司 | Method for welding tuyere-cooler casing and blast furnace casing |
| CN102728926A (en) * | 2012-06-19 | 2012-10-17 | 武汉一冶钢结构有限责任公司 | Cutting device and cutting method for flange hole |
| CN102717177A (en) * | 2012-06-27 | 2012-10-10 | 武汉一冶钢结构有限责任公司 | Device and method for welding blast furnace flange |
| CN103394792A (en) * | 2013-08-09 | 2013-11-20 | 中国二十二冶集团有限公司 | Method for forming hole in bustle pipe of blast furnace blowing-in device |
Non-Patent Citations (2)
| Title |
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| 李少游等: "高炉热风口法兰的开孔和焊接", 《机械工人.热加工》 * |
| 章锐: "大型高炉风口法兰的现场安装工艺", 《江苏冶金》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105583501A (en) * | 2016-02-20 | 2016-05-18 | 首钢水城钢铁(集团)赛德建设有限公司 | Method for assembly welding of tuyere, taphole frame and furnace body for blast furnace shell manufacturing |
| CN109666770A (en) * | 2018-12-28 | 2019-04-23 | 中国二冶集团有限公司 | The construction method of tuyere flange equipment mounting and adjusting |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |