CN102242235B - Method for installing converter shell in reverse hydraulically lifting manner - Google Patents
Method for installing converter shell in reverse hydraulically lifting manner Download PDFInfo
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- CN102242235B CN102242235B CN201110183432.7A CN201110183432A CN102242235B CN 102242235 B CN102242235 B CN 102242235B CN 201110183432 A CN201110183432 A CN 201110183432A CN 102242235 B CN102242235 B CN 102242235B
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Abstract
The invention provides a method for installing a converter shell in a reverse hydraulically lifting manner. A hydraulic lifting frame is arranged by taking a converter trunnion ring as a lifting supporting base point on the basis of finished installation of the converter trunnion ring, a combination section of a converter bottom and a converter body of the converter shell is conveyed below a support barrel by utilizing a steel tank truck for first bottom lifting and then is conveyed into a converter mouth section to be assembled with the combination section, and then the converter shell is lifted and reversely installed by the lifting mechanism. The invention provides a novel installation technique with feasibility, wide application range of environment conditions, lower construction cost and high safety and is the developmental application of an advanced hydraulic lifting machine.
Description
Technical field
The present invention relates to a kind of method that converter shell is installed, particularly a kind of method of utilizing hydraulic pressure lift converter shell to be inverted and to install.
Background technology
According to experience in the past, converter shell is changed, and " beam hangs method " hoisting of taking reinforced inter-bank car to transport to coordinate windlass lifting is the not only fast but also method economized.But, for the maintenance engineering of having gone into operation, because 1. each layer of landing beam of high-rise frame is subject to the impact of high temperature action for a long time, can not bear large weight load.All factors such as " beam hangs method " that 2. adopt reinforced inter-bank car handling to coordinate installs, and takies continuously running time long, the normal production of impact, cause " beam hangs method " namely upright method of hull section construction cannot implement.3. adopt that " stand method " construction is artificial and measure materials are more, construction cost is higher, and without implementing plane.The maintenance engineering of 4. having gone into operation should keep producing, and overhauls again, reinforced across there is no furnace shell assembling place.
Summary of the invention
The object of the invention is to address the above problem and provide a kind of feasible, reducing expenses, safe a kind of novel field engineering, is the expansion application of a kind of advanced person's hydraulic pressure lift hoisting machine tool.This technique is on the basis of converter trunnion ring installation, and the backing ring of take is installed hydraulic pressure lift frame as lifting supporting base point, and converter shell utilizes cylinder of steel car to be transported to the logical below of holder, by lifting mechanism, furnace shell is promoted to upside-down mounting.
The present invention solves the problems of the technologies described above adopted technical scheme:
Converter shell is inverted a method for hydraulic lifting installation, comprises the steps:
(a) furnace bottom section and shaft section is first welded together before installation, form furnace bottom, shaft combined segment, and furnace bottom, shaft combined segment are inverted, in furnace bottom, shaft combined segment bottom, hanger is installed;
(b) by 180 ° of backing ring upsets, on the backing ring after upset, be connected with raising legs, between raising legs, by shoulder pole, link together, shoulder pole is connected with suspension rod by plate pin;
(c) by furnace bottom, the handling of shaft combined segment to ladle car, then be transported to backing ring below by ladle car, hanger is connected with furnace shell lifting erecting by overhang; Furnace shell promotes erecting by overhang and is connected on backing ring; Backing ring top is connected with furnace shell lifting gear, and furnace shell lifting gear top is fixedly connected with by lifting gear safety and firmness envelope bar with platform; During lifting, start the lifting hydraulic cylinder of furnace shell lifting gear, lifting hydraulic cylinder promotes shoulder pole, and shoulder pole drives furnace bottom, shaft combined segment to promote, and the fire door section of take is highly lift height;
(d) fire door section is transported to lifting station by assembling orientation, and is assembling station and furnace bottom, shaft combined segment butt welding, completes furnace shell assembling; By furnace shell lifting gear, promote for the second time furnace shell and put in place, the ball pivot nut that connects furnace shell and backing ring is installed, carry out holder installation and lifting gear and remove; Then, backing ring rotation furnace shell back to zero position, after checking that confirmation installation quality meets the requirements, and carries out after the equipment installations such as furnace shell plate washer, skirtboard and the construction of next procedure fire resisting material of furnace body, has completed converter shell and has been inverted hydraulic lifting installation.
Further scheme is: in step (c), described furnace shell lifting gear includes raising legs, in raising legs inside, there is shoulder pole, shoulder pole below is connected with lifting hydraulic cylinder, there is respectively on lifting hydraulic cylinder ratchet under ratchet and lifting hydraulic cylinder lifting hydraulic cylinder top and the bottom, on shoulder pole, by plate pin, be fixed with suspension rod, suspension rod is connected with the hanger being arranged on furnace bottom counterweight circle.
In the present invention, furnace shell lifting gear is a kind of standardized product, and the raising legs being comprised of welded construction and hydraulic pressure creep machine and hydrostatic control station form.Shoulder pole and the erecting by overhang of auxiliary lifting tooling design, manufacture according to field demand.Furnace shell lifting gear carries out jacking by auxiliary lifting tooling, and object is in order to change lifting process, realizes furnace shell upside-down mounting, vertical lifting.
On will be to backing ring after 180 ° of backing ring upsets, plane be cleared up.Holder is arranged in 45 ° of positions of backing ring shaft centre line horizontal sextant angle conventionally, therefore raising legs is positioned at 65 °, with exterior domain, arranges raising legs, does not affect the normal mounting of holder.Hanger is arranged on furnace bottom counterweight circle.
Promote for the first time that to take fire door section be highly lift height, object is to enter assembling reserving space for fire door section;
Compared with prior art, the present invention has obtained following technique effect:
1, " beam hangs method " need to take production overhead traveling crane for a long time, has a strong impact on normal production, and " upside-down method of hull section construction " do not need to take for a long time reinforced driving, can not impact normal production;
2, " stand method " need to make large-scale acknowledgement of consignment stand, need to be to converter operation framework platform construction, and " upside-down method of hull section construction " can taper to minimum to other project under construction impact, also do not need extend range to remove some not member and equipment of overhauling project.
3, safety performance is more reliable, and great unsafe factor is relatively less.Emphasis is to prevent backing ring automatic turning, and this problem, as long as take measures in electric braking and mechanical braking locking, can effectively stop backing ring automatic turning.Design of the present invention is that under electric brake sticking brake state, at geartransmission torsion bar, place adds cushion block, by geared machine, brakes, and adds shaped steel rod member reinforcement by connection between lifting column top and upper brace simultaneously.Once complete, simple, insurance is reliable.
4, envrionment conditions adaptive surface is vast, and construction cost is lower.
5, lifting gear of the present invention is comprised of lifting bracket (inside is provided with from climbing hydraulic efficiency plant), shoulder pole, erecting by overhang and hanger etc., and point of suppon is upper.From the hydraulic efficiency plant continuance lifting that climbs, in hoisting process without other operation sequence.Take time master operation phase short, the duration is guaranteed.Suspension centre of the present invention is the hanger that is welded on furnace shell bottom in addition, with the steel plate of thickness 30mm, processes, simple and reliable.Bar is hung in the twice lifting just transformation of the way, prescinds perforate.
6, the present invention has coordinated ball pivot to install in Integral lifting process, and then holder is installed.Body of heater is fixed on backing ring according to design requirements, then removes lifting system.After verting, reaffirm the bolt solid state of ball pivot and holder.Once complete, without other operations, and quality is more guaranteed.
Accompanying drawing explanation
Fig. 1 converter shell structural representation;
Fig. 2 raising legs and hanger locating structure schematic diagram;
Fig. 3 is the enlarged view of A part in Fig. 2;
Schematic diagram when Fig. 4 furnace shell combined segment promotes;
Schematic diagram when Fig. 5 lifting furnace shells station is assembled and promotes for the second time;
Fig. 6 is the enlarged view of A ' part in Fig. 5;
Fig. 7 is furnace shell lifting gear structural representation;
Fig. 8 is specific embodiment of the invention schema.
Each description of reference numerals is as follows:
1, furnace bottom section; 2, shaft section; 3, fire door section; 4, backing ring; 5, raising legs; 6, furnace shell; 7, hanger; 8, shoulder pole; 9, suspension rod; 10, plate pin; 11, ladle car; 12, furnace bottom, shaft combined segment; 13, furnace shell promotes erecting by overhang; 14, furnace shell lifting gear; 15, lifting gear safety and firmness envelope bar; 16, leveling place mat square steel; 17, steel plate; 18, lifting hydraulic cylinder; 19, ratchet on lifting hydraulic cylinder; 20, ratchet under lifting hydraulic cylinder; 21, platform.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
Enforcement of the present invention is in backing ring and suspension system installation, and flue is implemented after putting in place with cover lifting.
It is example that the 100t converter overhaul engineering converter shell 6 of take is below changed construction, introduces hydraulic pressure lift converter shell 6 upside-down installation method technological principles.(seeing schema 8)
The whole heavy 121.5t of furnace shell 6 changing, body of heater external diameter Φ 5700mm, high 8200mm, backing ring 4 external diameter Φ 7400mm, internal diameter Φ 5900mm, height 1900mm.Converter shell 6 is three pivot sphere hinged bearing modes with connecting of backing ring 4, and 3 are divided into 120 °.Converter inclining form is integral four point toothing Flexible Transmissions, turning angle ± 360 °.
Hoisting brief introduction
The brief introduction of hydraulic pressure lift tooling:
Hydraulic pressure lift tooling is comprised of furnace shell lifting gear 14, shoulder pole 8 and erecting by overhang etc.Furnace shell lifting gear 14 is a kind of standardized products, and the raising legs 5 and the hydrostatic control station that welded construction and hydraulic pressure creep machine, consist of form.Shoulder pole 8 is the on-the-spot auxiliary lifting tooling that designs according to demand, manufactures with erecting by overhang.What furnace shell lifting gear 14 was implemented is a jacking process, by auxiliary lifting tooling, carries out jacking.Lifting process conversion, realizes furnace shell 6 upside-down mountings, vertical lifting.Furnace shell lifting gear 14 tops and platform 21 are welded and fixed by lifting gear safety and firmness envelope bar 15.
Hoisting is analyzed:
Adopt upside-down installation method furnace shell 6, first lifting process is carried out to multianalysis, to determine the exploitativeness of technique.Converter shell 6 is designed to: backing ring 4 shaft centre line absolute altitudes
fire door absolute altitude
hearth level
upside-down mounting is in place, and hearth level is
on-the-spot pre-assembled good furnace bottom, the high 4600mm of shaft combined segment 12, transport the ladle car 11 car face absolute altitude 1430mm (lay a plurality of square steel 16 for leveling place mat on ladle car, what placed in addition onboard a thick 30mm is about 6000mm * 6000mm steel plate 17) of furnace shell 6.Shaft combined segment is placed on ladle car 11, and hearth level is
platform absolute altitude
landing beam cross-sectional height 600mm.The high 1900mm of backing ring 4 ring, upper plane absolute altitude
headroom between backing ring 4 and movable gas hood platform is apart from 6350mm.As calculated, 6 meters of raising legss 5 can be installed on backing ring 4; The total lift stroke 7680mm of furnace shell 6 upside-down mounting, needs a minute second lift, promotes for the first time 3600mm, carries out 6 assemblings of lifting station furnace shell, promotes for the second time 4080mm, and furnace shell 6 promotes to put in place installs ball pivot nut.Backing ring 4, when zero-bit state, overturns 180 ° after completing the installation of three ball pivots, carries out raising legs 5 and furnace shell and promotes erecting by overhang 13 and arrange.
Raising legs 5 layout design:
180 ° of backing ring 4 upsets, clear up plane on backing ring 4.Because this plane need be installed holder, therefore require raising legs 5 to arrange location, first to consider not affect the normal mounting of holder.Secondly raising legs 5 is arranged location, consider the setting of hanger 7.Holder is arranged in 45 ° of positions of backing ring 4 shaft centre line horizontal sextant angle conventionally, therefore raising legs 5 is positioned at 65 ° with exterior domain, 7 of hangers can be arranged on furnace bottom counterweight circle.Raising legs 5 arranges that location and hanger 7 arrange design and refer to Fig. 2 and Fig. 3.
Wherein, in Fig. 3 and Fig. 6, can see that from different perspectives shoulder pole 8 is connected with suspension rod 9 by plate pin 10.
In addition, Fig. 7 has represented the structure iron of furnace shell lifting gear, described furnace shell lifting gear includes raising legs, in raising legs inside, there is shoulder pole, shoulder pole below is connected with lifting hydraulic cylinder 18, and there is respectively on lifting hydraulic cylinder ratchet 20 under ratchet 19 and lifting hydraulic cylinder lifting hydraulic cylinder top and the bottom, on shoulder pole, by plate pin, be fixed with suspension rod, suspension rod is connected with the hanger being arranged on furnace bottom counterweight circle.
Lifting process design for the first time:
Combined segment is transported to lifting position, promotes for the first time design: furnace bottom section and shaft section are pre-assembled becomes one section, by tapping the handling of inter-bank car to ladle car 11, then by ladle car 11, is transported to backing ring 4 belows and promotes for the first time lifting (referring to Fig. 4).
Lifting process design for the second time:
Combined segment promotes for the first time over 3600mm, fire door section can be sent into lifting station, prepares to carry out the second lifting.Fire door section need be transported to lifting station by assembling orientation, and at assembling station and combined segment butt welding, completes furnace shell 6 assemblings.Furnace shell 6 in lifting station assembling simultaneously, is pressed lift stroke 4080mm for the second time, furnace shell is promoted to erecting by overhang 13 and transform, and hangs bar and shortens 3300mm～3600mm, carries out to promote for the second time and prepares (referring to Fig. 5).
Furnace shell 6 promotes for the second time 4080mm and puts in place, and three ball pivot nuts install, and can carry out holder installation and lifting gear and remove.Then, backing ring 4 rotation furnace shell 6 back to zero positions, after checking that confirmation installation quality meets the requirements, carry out the equipment installations such as furnace shell 6 plate washers, skirtboard and the construction of next procedure fire resisting material of furnace body.
Protection scope of the present invention is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and not depart from the scope of the present invention and spirit the present invention.If these changes and distortion belong in the scope of the claims in the present invention and equivalent technologies thereof, the intent of the present invention also comprises these changes and is out of shape interior.
Claims (1)
1. converter shell is inverted a method for hydraulic lifting installation, it is characterized in that comprising the steps:
(a) furnace bottom section (1) and shaft section (2) is first welded together before installation, form furnace bottom, shaft combined segment (12), and furnace bottom, shaft combined segment are inverted, in furnace bottom, shaft combined segment bottom, hanger (7) is installed;
(b) backing ring (4) is overturn to 180 °, be connected with raising legs (5) on the backing ring after upset (4), between raising legs (5), by shoulder pole (8), link together, shoulder pole (8) is connected with suspension rod (9) by plate pin (10);
(c) by furnace bottom, the handling of shaft combined segment to ladle car, then be transported to backing ring below by ladle car, hanger is connected with furnace shell lifting erecting by overhang; Furnace shell promotes erecting by overhang (13) and is connected on backing ring; Backing ring top is connected with furnace shell lifting gear (14), and furnace shell lifting gear (14) top is fixedly connected with by lifting gear safety and firmness envelope bar (15) with platform (21); During lifting, start the lifting hydraulic cylinder of furnace shell lifting gear, lifting hydraulic cylinder promotes shoulder pole, and shoulder pole drives furnace bottom, shaft combined segment to promote, and the fire door section of take is highly lift height;
(d) fire door section is transported to lifting station by assembling orientation, and is assembling station and furnace bottom, shaft combined segment butt welding, completes furnace shell assembling; By furnace shell lifting gear, promote for the second time furnace shell and put in place, the ball pivot nut that connects furnace shell (6) and backing ring (4) is installed, carry out holder installation and lifting gear and remove; Then, backing ring rotation furnace shell back to zero position, after checking that confirmation installation quality meets the requirements, and carries out after the equipment installations such as furnace shell plate washer, skirtboard and the construction of next procedure fire resisting material of furnace body, has completed converter shell and has been inverted hydraulic lifting installation;
In step (c), described furnace shell lifting gear includes raising legs, on raising legs, be provided with shoulder pole, shoulder pole below is connected with lifting hydraulic cylinder, there is respectively on lifting hydraulic cylinder ratchet under ratchet and lifting hydraulic cylinder lifting hydraulic cylinder top and the bottom, on shoulder pole, by plate pin, be fixed with suspension rod, suspension rod is connected with the hanger being arranged on furnace bottom counterweight circle;
Described hanger processes with the steel plate of thickness 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110183432.7A CN102242235B (en) | 2011-07-01 | 2011-07-01 | Method for installing converter shell in reverse hydraulically lifting manner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110183432.7A CN102242235B (en) | 2011-07-01 | 2011-07-01 | Method for installing converter shell in reverse hydraulically lifting manner |
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| CN102242235A CN102242235A (en) | 2011-11-16 |
| CN102242235B true CN102242235B (en) | 2014-02-12 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898270A (en) * | 2014-04-17 | 2014-07-02 | 中国十五冶金建设集团有限公司 | Flip-over type installation method of steel converter |
| CN110846463B (en) * | 2019-11-04 | 2021-06-01 | 上海宝冶集团有限公司 | Integral hoisting method for super-huge converter shell |
| CN111521028A (en) * | 2020-04-30 | 2020-08-11 | 上海二十冶建设有限公司 | Ground assembling installation method for ash discharge pipe of air box of chain grate |
| CN111961800A (en) * | 2020-06-30 | 2020-11-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for replacing fixed steelmaking converter shell |
| CN115786625A (en) * | 2022-12-20 | 2023-03-14 | 中冶宝钢技术服务有限公司 | Spherical hinge bearing replacing method of suspension type converter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109028A (en) * | 2007-09-06 | 2008-01-23 | 天津二十冶建设有限公司 | Method of upside-down mounting hydraulic pressure lifting of converter shell |
| CN101928803A (en) * | 2010-08-16 | 2010-12-29 | 天津二十冶建设有限公司 | Rotating furnace inversing method |
-
2011
- 2011-07-01 CN CN201110183432.7A patent/CN102242235B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101109028A (en) * | 2007-09-06 | 2008-01-23 | 天津二十冶建设有限公司 | Method of upside-down mounting hydraulic pressure lifting of converter shell |
| CN101928803A (en) * | 2010-08-16 | 2010-12-29 | 天津二十冶建设有限公司 | Rotating furnace inversing method |
Non-Patent Citations (2)
| Title |
|---|
| 荣钢100t转炉本体设备倒装方法;韩文哲 等;《天津冶金》;20101031(第5期);第3节 施工方法 * |
| 韩文哲 等.荣钢100t转炉本体设备倒装方法.《天津冶金》.2010,(第5期),第3节 施工方法. |
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