CN101736118B - Installation method of track beam of oxygen lance for steel-making converter - Google Patents
Installation method of track beam of oxygen lance for steel-making converter Download PDFInfo
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- CN101736118B CN101736118B CN2008101531360A CN200810153136A CN101736118B CN 101736118 B CN101736118 B CN 101736118B CN 2008101531360 A CN2008101531360 A CN 2008101531360A CN 200810153136 A CN200810153136 A CN 200810153136A CN 101736118 B CN101736118 B CN 101736118B
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Abstract
The invention relates to an installation method of a track beam of an oxygen lance for a steel-making converter, comprising the following steps of: (1) processing before installing a track beam: the bottom flange plate of the track beam is brazed to the top of a load bearing crossbeam after the load bearing crossbeam is installed in place, but the brazing is carried out after positioning, the standard height of the track beam is measured by a precise leveling instrument, the measuring space is 100mm, measuring data are recorded, the ripple quantity of the measuring data is depictured, a chartis listed, and the ripple figure of the measuring data are drawn; (2) making the track beam into H-shaped steel; (3) cutting the H-shaped steel into T-shaped steel in one step; (4) installing the track beam; (5) measuring the levelness of the top face and the standard height of the track beam until the levelness and the standard height are qualified after the track beam is welded and cooled, and then installing the track beam again. The installation method has the advantage of enhancing the installation precision of the track beam so as to enhance the installation quality of oxygen lance equipment.
Description
Technical field:
The invention belongs to a kind of installation method of track girder, particularly a kind of oxygen lance for steel-making converter pwoer track installing method.
Background technology:
In steel-making converter framework installation process, frame beam column progressive error can occur after the multilayer welded and installed, comprise factors such as parts manufacturing deviation, weld seam contraction and settlement of foundation, therefore the repetition measurement of the carrier bar top absolute altitude of the displacement that must carry out framework before the track beam of oxygen lance and track beam of oxygen lance is installed, to control and to revise these deviations, reach the regulation that meets design paper, construction inspection rules, guarantee the complete installation quality of oxygen rifle equipment; And the installation quality of oxygen rifle equipment will directly influence the operation of converter installation, so must control its quality well; And want to reach its setting accuracy, must do from the setting accuracy of track girder earlier.
Summary of the invention:
Purpose of the present invention just is to provide a kind of installation method of track beam of oxygen lance for steel-making converter, and this method can make the setting accuracy of track beam of oxygen lance for steel-making converter be improved, and then improves the installation quality of oxygen rifle equipment.
Technical scheme of the present invention is: a kind of installation method of track beam of oxygen lance for steel-making converter, it is characterized in that: carry out: the processing before 1. track girder is installed: after the load-bearing crossbeam is in place according to the following step, earlier with the disconnected top that is welded to the load-bearing crossbeam of the bottom wing listrium of track girder, but must locate earlier the weldering of afterwards breaking, with precision level its absolute altitude is measured then, measure spacing 100mm, write down its take off data and retouch out take off data ripple quantity, list chart, mark its moire pattern; 2. track girder is made as into H shaped steel; 3. the chart production of 1. making according to step once cuts into T-steel with H shaped steel, and also with regard to the top flange plate and the web of track girder, the web plate section height is extended by the data among the peak value figure or shortens; 4. the installation of track girder: track girder is behind hoisted in position, at first reinforce, consider the allowance for shrinkage 1～1.5mm of track girder when welding simultaneously, thereby track girder after finishing, needs also its levelness of repetition measurement and absolute altitude to guarantee its upper water Pingdu and absolute altitude in reinforcing, welds again; 5. track girder is finished cooling back in welding and is measured its end face levelness and absolute altitude, need not carry out milled processed till qualified when its part reaches requirement, carries out the installation of track again.
Reserve the surplus of 20mm during above-mentioned H section steel manufacture.
Above-mentioned track girder must the intermittent welding of two people symmetry only takes over control in when welding that stress is out of shape greatly, preferably adopts CO
2Shielded welding.
1. advantage of the present invention is: 1, carried out track girder installation, welding and measurement process control and leave record, thereby guaranteed the setting accuracy of track girder.Therefore weld seam allowance for shrinkage when 2, track girder has been considered the track girder bottom wing listrium top discrepancy in elevation and welding when mounted makes installation process more accurate.3, track girder must the intermittent welding of two people symmetry only takes over control in when welding that stress is out of shape greatly, therefore, has guaranteed the quality of welding process.
Description of drawings:
Fig. 1 is a track girder lower flange horizontal degree measurement synoptic diagram.
Fig. 2 is bearing beam and track girder lower flange plate level degree observed value chart.
Fig. 3 is a bearing beam at (the horizontal degree measurement peak value figure of 0m～1m～2m).
Fig. 4 is a bearing beam at (the horizontal degree measurement peak value figure of 2m～3m～4m).
Fig. 5 is that the track girder T-steel is made synoptic diagram.
Fig. 6 is the reinforcing synoptic diagram of track girder before welding.
Embodiment:
Because track girder upper track installation specification is higher, therefore add and must take the particular processing method man-hour at track girder, concrete grammar is as described below.
As shown in Figure 1: in the cross section is after the bearing beam 1 of 1700mm is in place, it with the cross section earlier the disconnected top that is welded to the load-bearing crossbeam of bottom wing listrium of the track girder 2 of 20x20x20x234mm, but must locate earlier the weldering of afterwards breaking (guaranteeing its linearity), with precision level its absolute altitude is measured then, measure Jian Ju @100mm, write down its take off data and retouch out take off data ripple quantity, list chart, mark its moire pattern, (shown in Fig. 2,3,4).
According to above-mentioned chart production T-steel, also with regard to the top flange plate and the web of track girder, the web plate section height is extended by the data among the peak value figure or shortens, and that is to say that the lower end of web is a wave-like, and specific practice is illustrated in fig. 5 shown below:
Earlier it is made as into H shaped steel because track girder is long when T-steel is made, needs to be interrupted for fear of the distortion of H shaped steel and cut, its cut lengths are reserved the surplus of 20mm simultaneously and are guaranteed cutting forming of T-steel according to data decision in the table when the H section steel manufacture.
Indeformable when transporting in order to guarantee T-steel with lifting, must will enter next procedure after the T-steel consolidation process again.
Track girder is behind hoisted in position, gusset plate 3 must be installed earlier, consider simultaneously track girder the allowance for shrinkage in when welding (1～1.5mm), thus track girder also needs its levelness of repetition measurement and absolute altitude to guarantee its upper water Pingdu and absolute altitude after reinforcing finishes, and welds again; Must two people during welding symmetry intermittent welding only to take over control stress big and be out of shape, preferably adopt CO
2Shielded welding.
Track girder is finished cooling back in welding and is measured its end face levelness and absolute altitude, as finds that its part does not reach requirement and need carry out milled processed till qualified, carries out the installation of track again.
Claims (3)
1. installation method of track beam of oxygen lance for steel-making converter, it is characterized in that: carry out: the processing before 1. track girder is installed: after the load-bearing crossbeam is in place according to the following step, earlier with the disconnected top that is welded to the load-bearing crossbeam of the bottom wing listrium of track girder, but must locate earlier the weldering of afterwards breaking, with precision level its absolute altitude is measured then, measure spacing 100mm, write down its take off data and retouch out take off data ripple quantity, list chart, mark its moire pattern; 2. track girder is made as into H shaped steel; 3. the chart production of 1. making according to step once cuts into T-steel with H shaped steel, and also with regard to the top flange plate and the web of track girder, the web plate section height is extended by the data among the peak value figure or shortens; 4. the installation of track girder: track girder is behind hoisted in position, at first reinforce, consider the allowance for shrinkage 1～1.5mm of track girder when welding simultaneously, thereby track girder after finishing, needs also its levelness of repetition measurement and absolute altitude to guarantee its upper water Pingdu and absolute altitude in reinforcing, welds again; 5. track girder is finished cooling back in welding and is measured its end face levelness and absolute altitude, need not carry out milled processed till qualified when its part reaches requirement, carries out the installation of track again.
2. installation method of track beam of oxygen lance for steel-making converter according to claim 1 is characterized in that: the surplus of reserving 20mm during above-mentioned H section steel manufacture.
3. installation method of track beam of oxygen lance for steel-making converter according to claim 1 is characterized in that: above-mentioned track girder must the intermittent welding of two people symmetry only takes over control in when welding that stress is out of shape greatly, preferably adopts CO
2Shielded welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101531360A CN101736118B (en) | 2008-11-18 | 2008-11-18 | Installation method of track beam of oxygen lance for steel-making converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101531360A CN101736118B (en) | 2008-11-18 | 2008-11-18 | Installation method of track beam of oxygen lance for steel-making converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101736118A CN101736118A (en) | 2010-06-16 |
| CN101736118B true CN101736118B (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101531360A Active CN101736118B (en) | 2008-11-18 | 2008-11-18 | Installation method of track beam of oxygen lance for steel-making converter |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929628B (en) * | 2017-04-18 | 2018-10-02 | 中国十七冶集团有限公司 | The installation method of converter oxygen gun horizontal rail |
| CN107245543A (en) * | 2017-06-27 | 2017-10-13 | 攀钢集团攀枝花钢钒有限公司 | Costume changing method for top-blown converter oxygen rifle vehicle guide |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3531097A (en) * | 1967-03-24 | 1970-09-29 | Pittsburgh Steel Co | Oxygen lance |
| CN2289798Y (en) * | 1995-11-09 | 1998-09-02 | 冶金工业部鞍山热能研究院 | Oxygen-enriched coal powder injection device for ironmaking furnace |
| CN2366420Y (en) * | 1998-12-30 | 2000-03-01 | 宝山钢铁(集团)公司 | Nozzle of oxygen lance for large scale converter |
| CN1282379A (en) * | 1997-12-19 | 2001-01-31 | Sms德马格股份公司 | Converter installation |
| EP1204769B1 (en) * | 1999-05-15 | 2003-08-06 | Messer Griesheim GmbH | Device and method for spraying natural gas and/or oxygen |
-
2008
- 2008-11-18 CN CN2008101531360A patent/CN101736118B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3531097A (en) * | 1967-03-24 | 1970-09-29 | Pittsburgh Steel Co | Oxygen lance |
| CN2289798Y (en) * | 1995-11-09 | 1998-09-02 | 冶金工业部鞍山热能研究院 | Oxygen-enriched coal powder injection device for ironmaking furnace |
| CN1282379A (en) * | 1997-12-19 | 2001-01-31 | Sms德马格股份公司 | Converter installation |
| CN2366420Y (en) * | 1998-12-30 | 2000-03-01 | 宝山钢铁(集团)公司 | Nozzle of oxygen lance for large scale converter |
| EP1204769B1 (en) * | 1999-05-15 | 2003-08-06 | Messer Griesheim GmbH | Device and method for spraying natural gas and/or oxygen |
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| Publication number | Publication date |
|---|---|
| CN101736118A (en) | 2010-06-16 |
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