CN103509909B - Internal repair and maintenance method and device for converter exhaust heat boiler - Google Patents
Internal repair and maintenance method and device for converter exhaust heat boiler Download PDFInfo
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- CN103509909B CN103509909B CN201310480368.8A CN201310480368A CN103509909B CN 103509909 B CN103509909 B CN 103509909B CN 201310480368 A CN201310480368 A CN 201310480368A CN 103509909 B CN103509909 B CN 103509909B
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Abstract
The invention relates to an internal repair and maintenance method and device for a converter exhaust heat boiler. An umbrella jumper in a folded state is hoisted using a rope and a chain and put into the boiler from an oxygen lance hole; the umbrella jumper is unfolded when being located 0.8-1.2 m below a leak point inside the boiler; a bushing at the bottom of a climbing ladder is mounted on a plug bush of an insert jumper so that the climbing ladder is fixed; using the insert jumper as a pivot, the plug-in-type climbing ladder is pushed to the upper side of the umbrella jumper; and a maintainer goes onto the umbrella jumper through the insert jumper and the plug-in-type climbing ladder, fixes the umbrella jumper on the wall of the boiler and performs a welding repair operation on the leak point on a repair and maintenance platform. The invention has the advantages of achieving the effect of rapidly building an operating platform within a converter exhaust heat boiler, controlling and adjusting the lifting height and rotational angle, satisfying the needs for repair and maintenance and reducing the labor intensity.
Description
Technical field
The present invention relates to examination and repair method and device in a kind of Converter Residual Heat Boiler.
Background technology
In STEELMAKING PRODUCTION, movable gas hood and waste heat boiler form closing and recovery system original furnace gas jointly, because original furnace gas temperature is up to 1600 DEG C, movable gas hood and waste heat boiler are by refrigeration cycle water for cooling, due to slag splash when high temperature, the oxygen blast of oxygen burn into, the cooling water circulation reason such as bad, movable gas hood and waste heat boiler is caused often to ftracture seepage, need to look into converter movable hood and waste heat boiler, weld leakage operation, this is that converter installation is protected and produced regular, main events in operation in maintenance.For the maintenance of waste heat boiler high-level leakage (leaking with argon arc welding weldering), staff need take under close to 70 degree of hot environments, tear temporary ladder and job platform (supporting maintainer and argon welder equipment) open, not only use duration, dangerous high, need to weld upholder in maintenance process on boiler tube wall simultaneously, remove with gas welding again at the end of maintenance, damage can be caused to boiler body, substantially increase the labour intensity of maintainer.
Application number: 201010216996, discloses a kind of Converter Residual Heat Boiler repair apparatus and repaiies furnaceman's skill, can only be used for repairing rotary furnace use, and irremovable, can only be used for the specific repairing rotary furnace below it, also cannot be used for Converter Residual Heat Boiler simultaneously and look into, welds leakage operation.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of this invention is to provide examination and repair method and device in a kind of Converter Residual Heat Boiler, can in Converter Residual Heat Boiler fast construction escape way and job platform, and can meet maintenance needs, reduce labour intensity.
For achieving the above object, the present invention is achieved through the following technical solutions:
Examination and repair method in a kind of Converter Residual Heat Boiler, is lifted between converter and waste heat boiler by slotting jumping, with slotting jumping for fulcrum, pushes plug-in type grade climbing ladder, comprises the following steps:
1) jump with 1 steel cable and 2 chain handling umbrellas, wherein steel cable lies on control lever, and two chains lie on the hanger of bearing bar both sides; On suspension hook steel cable being suspended to lifting machine, the umbrella of handling rounding state is jumped, and is then put in boiler from oxygen rifle hole by umbrella jump shot;
2) when 0.8-1.2 rice below the leak source be in boiler jumped by umbrella, chain is suspended to umbrella and jumps on support, continue toward the steel cable of transferring on control lever, then the weight that umbrella is jumped is transformed on chain by steel cable, and Automatic-expanding jumped by umbrella under gravity;
3) plug-in type grade climbing ladder is pushed to the umbrella side of jumping onto, the sleeve pipe of the bottom position of grade climbing ladder is arranged on slotting sleeve of jumping, grade climbing ladder is fixed, maintainer jumps by inserting and plug-in type grade climbing ladder is jumped onto to umbrella, umbrella is jumped and is fixed on boiler wall by the position-limit mechanism jumped onto by umbrella, and the job platform that umbrella is jumped carries out leak source soldering operation;
4) during the end of job, arrive ground by under inverted sequence maintainer, withdraw umbrella jumping, grade climbing ladder and insert and jump.
Umbrella is jumped and is comprised control lever, bearing bar, hanger, job platform, base, traction sliding sleeve, pull bar, position-limit mechanism, bearing bar upper end is fixed with hanger, lower end is connected with base, control lever inserts the inside of bearing bar, and control lever bottom is fixedly connected with traction sliding sleeve, and traction sliding sleeve and bearing bar are slidably connected, job platform is connected with base by folding, job platform is provided with position-limit mechanism, and pull bar one end is flexibly connected with traction sliding sleeve, and the other end is connected with job platform.
Described position-limit mechanism comprises push rod, tip-lever support, and tip-lever support is fixed on job platform, and push rod is connected by screw thread pair with tip-lever support, and push rod end cross-sectional is T-shaped.
Slotting jumping comprises sleeve, platform, expansion pipe, chain-wales base plate, safe fence, chain-wales base plate is fixed in converter, platform is fixed on chain-wales base plate, expansion pipe is flexibly connected with chain-wales base plate by platform, expansion pipe is that axle rotates with platform, expansion pipe end is provided with safe fence, and sleeve is fixed on expansion pipe.
The ladder that grade climbing ladder is fixed with sleeve pipe by multiple bottom forms, and each ladder realizes connecting by the top of sleeve pipe being inserted adjacent ladder, and the sleeve of jumping is inserted in its sleeve pipe grafting by the ladder of bottommost, and the ladder of top is fixed with A-frame.
Compared with prior art, the invention has the beneficial effects as follows:
Achieve fast construction job platform in Converter Residual Heat Boiler, meet maintenance needs, reduce labour intensity.
Umbrella is jumped and be have employed accordion structure, and can enter in restricted clearance by the umbrella jump shot being in rounding state from relatively little hole, then launch, support and become firm mobile platform, personnel can stand and carry out soldering to different sites leak source on a mobile platform.
The used time does not take redundant space in slotting jumping, and this slotting jumping can rotate around stationary shaft, and maintenance different directions is very convenient, alleviates the labour intensity of maintainer greatly, for the safety of maintainer provides guarantee.
Band grade climbing ladder adopts plug in construction, and there is A-frame on top, and lead in waste heat boiler fin groove and slide, can be rapidly to oblique upper and be built into 18 meters of cat ladders in 10 minutes, operating efficiency is high.
Accompanying drawing explanation
Fig. 1 is maintenance schematic diagram in Converter Residual Heat Boiler.
Fig. 2 inserts to jump structural representation.
Fig. 3 is the front view of grade climbing ladder.
Fig. 4 is the side-view of grade climbing ladder.
Fig. 5 is that structural representation jumped by umbrella.
In figure: 1-chain 2-oxygen rifle hole 3-umbrella is jumped 4-grade climbing ladder 5-boiler 6-and inserted jumping 7-converter 8-control lever 9-hanger 10-bearing bar 12-base 14-gear rotation mechanism 15-traction sliding sleeve 16-pull bar 20-push rod 22-job platform 23-folding 24-spacing gusset 25-ladder 26-sleeve pipe 27-steel cable 28-pipe connecting 29-safe fence 30-chain-wales base plate 31-expansion pipe 32-platform 33-sleeve 34-A-frame 35-umbrella jumping frame.
Embodiment
Below in conjunction with Figure of description, the present invention is described in detail, but it should be noted that enforcement of the present invention is not limited to following embodiment.
See Fig. 1-Fig. 5, examination and repair method in Converter Residual Heat Boiler, comprises the following steps:
1) jump 3 with 1 steel cable 27 and 2 chain 1 handling umbrellas, wherein steel cable 27 lies on control lever 8, and two chains 1 lie on the hanger 9 of bearing bar 10 both sides; On suspension hook steel cable 27 being suspended to lifting machine, the umbrella of handling rounding state jumps 3, then from oxygen rifle hole 2, umbrella is jumped 3 and renders in boiler 5;
2) 0.8-1.2 rice below the leak source in boiler 5 is in when umbrella jumping 3; Chain 1 on bearing bar 10 being suspended to umbrella jumps on frame 35, continues toward the steel cable 27 of transferring on control lever 8, then the weight of umbrella jumping 3 is transformed on chain 1 by steel cable 27, and 3 Automatic-expandings jumped by umbrella under gravity;
3) slotting jumping 6 is lifted between converter 7 and waste heat boiler 5.
4) with slotting jumping 6 for fulcrum, plug-in type grade climbing ladder 4 being pushed to umbrella jumps above in the of 3, the sleeve pipe 26 of the bottom position of grade climbing ladder 4 is arranged on the sleeve 33 of slotting jumping 6, grade climbing ladder 4 is fixed, maintainer jumps on 3 by inserting on jumping 6 and plug-in type grade climbing ladder 4 to umbrella, umbrella is jumped 3 and is fixed on boiler 5 furnace wall by the position-limit mechanism of being jumped on 3 by umbrella, and the job platform 22 of umbrella jumping 3 carries out leak source soldering operation;
5) during the end of job, arrive ground by under inverted sequence maintainer, withdraw umbrella jumping 3, grade climbing ladder 4 and slotting jumping 6.
The device realizing above-mentioned examination and repair method comprises umbrella and jumps 3, inserts jumping 6 and grade climbing ladder 4, and its concrete structure is:
Umbrella is jumped 3 and is comprised control lever 8, bearing bar 10, hanger 9, job platform 22, base 12, traction sliding sleeve 15, pull bar 16, bearing bar 10 upper end is fixed with hanger 9, lower end is connected with base 12, control lever 8 inserts the inside of bearing bar 10, control lever 8 bottom is fixedly connected with traction sliding sleeve 15, traction sliding sleeve 15 is slidably connected with bearing bar 10, job platform 22 is connected with base 12 by folding 23, job platform 22 is provided with position-limit mechanism, pull bar 16 one end is flexibly connected with traction sliding sleeve 15, and the other end is connected with job platform 22.
Described position-limit mechanism comprises push rod 20, tip-lever support, and tip-lever support is fixed on job platform 22, and push rod 20 is connected by screw thread pair with tip-lever support, and push rod 20 end cross-sectional is T-shaped, is convenient to insert on the furnace wall of boiler 5.
Insert jumping 6 and comprise sleeve 33, platform 32, expansion pipe 31, chain-wales base plate 30, safe fence 29, chain-wales base plate 30 is supported in converter 7, platform 32 is fixed on chain-wales base plate 30, expansion pipe 31 is flexibly connected with chain-wales base plate 30 by platform 32, expansion pipe 31 with platform 32 for axle rotate, expansion pipe 31 end is provided with safe fence 29, and sleeve 33 is fixed on expansion pipe 31; Safe fence 29 is fixed with pipe connecting 28, is plugged on expansion pipe 31 during use by pipe connecting 28, platform 32 is through expansion pipe 31, and platform 32 lower end is fixed by bearing pin and chain-wales base plate 30.
The ladder 25 that grade climbing ladder 4 is fixed with sleeve pipe 26 by multiple bottom forms, each ladder 25 realizes connecting by the top of sleeve pipe 26 being inserted adjacent ladder 25, the sleeve of jumping 6 is inserted in its sleeve pipe 26 grafting by the ladder 25 of bottommost, and the ladder 25 of top is fixed with A-frame 34.
The plug-in type grade climbing ladder 4 that tape guide supports adopts plug-in type to design; can can be rapidly to oblique upper and be built into 18 meters of cat ladders in 10 minutes; operating efficiency is high; there is A-frame 34 on grade climbing ladder 4 top; A-frame 34 can lead and slide in waste heat boiler 5 fin groove; be plugged in slotting jumping 6 bottom grade climbing ladder 4, can anti-sliding stop, play safeguard protection effect.
Present invention achieves fast construction escape way and job platform in Converter Residual Heat Boiler, meet maintenance needs, reduce labour intensity.
Umbrella is jumped and be have employed accordion structure, and can enter in restricted clearance by the umbrella jump shot being in rounding state from relatively little hole, then launch, support and become firm mobile platform, personnel can stand and carry out soldering to different sites leak source on a mobile platform.
The used time does not take redundant space in slotting jumping, and this slotting jumping can rotate around stationary shaft, and maintenance different directions is very convenient, alleviates the labour intensity of maintainer greatly, for the safety of maintainer provides guarantee.
Band grade climbing ladder adopts plug in construction, and there is A-frame on top, and lead in waste heat boiler fin groove and slide, can be rapidly to oblique upper and be built into 18 meters of cat ladders in 10 minutes, operating efficiency is high.
Claims (4)
1. an examination and repair method in Converter Residual Heat Boiler, is lifted between converter and waste heat boiler by slotting jumping, with slotting jumping for fulcrum, pushes plug-in type grade climbing ladder, it is characterized in that, comprise the following steps:
1) jump with 1 steel cable and 2 chain handling umbrellas, wherein steel cable lies on control lever, and two chains lie on the hanger of bearing bar both sides; On suspension hook steel cable being suspended to lifting machine, the umbrella of handling rounding state is jumped, and is then put in boiler from oxygen rifle hole by umbrella jump shot;
2) when 0.8-1.2 rice below the leak source be in boiler jumped by umbrella, chain is suspended to umbrella and jumps on support, continue toward the steel cable of transferring on control lever, then the weight that umbrella is jumped is transformed on chain by steel cable, and Automatic-expanding jumped by umbrella under gravity;
3) plug-in type grade climbing ladder is pushed to the umbrella side of jumping onto, the sleeve pipe of the bottom position of grade climbing ladder is arranged on slotting sleeve of jumping, grade climbing ladder is fixed, maintainer jumps by inserting and plug-in type grade climbing ladder is jumped onto to umbrella, umbrella is jumped and is fixed on boiler wall by the position-limit mechanism jumped onto by umbrella, and the job platform that umbrella is jumped carries out leak source soldering operation;
4) during the end of job, arrive ground by under inverted sequence maintainer, withdraw umbrella jumping, grade climbing ladder and insert and jump.
2. examination and repair method in a kind of Converter Residual Heat Boiler according to claim 1, it is characterized in that, step 1) or step 2) or step 4) or step 5) described in umbrella jump comprise control lever, bearing bar, hanger, job platform, base, traction sliding sleeve, pull bar, position-limit mechanism, bearing bar upper end is fixed with hanger, lower end is connected with base, control lever inserts the inside of bearing bar, control lever bottom is fixedly connected with traction sliding sleeve, traction sliding sleeve and bearing bar are slidably connected, job platform is connected with base by folding, job platform is provided with position-limit mechanism, pull bar one end is flexibly connected with traction sliding sleeve, the other end is connected with job platform, described position-limit mechanism comprises push rod, tip-lever support, and tip-lever support is fixed on job platform, and push rod is connected by screw thread pair with tip-lever support, and push rod end cross-sectional is T-shaped.
3. examination and repair method in a kind of Converter Residual Heat Boiler according to claim 1, it is characterized in that, step 3) described in slotting jumping comprise sleeve, platform, expansion pipe, chain-wales base plate, safe fence, chain-wales base plate is fixed in converter, platform is fixed on chain-wales base plate, and expansion pipe is flexibly connected with chain-wales base plate by platform, and expansion pipe is that axle rotates with platform, expansion pipe end is provided with safe fence, and sleeve is fixed on expansion pipe.
4. examination and repair method in a kind of Converter Residual Heat Boiler according to claim 1, it is characterized in that, step 4) described in the grade climbing ladder ladder that is fixed with sleeve pipe by multiple bottom form, each ladder realizes connecting by the top of sleeve pipe being inserted adjacent ladder, the sleeve of jumping is inserted in its sleeve pipe grafting by the ladder of bottommost, and the ladder of top is fixed with A-frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310480368.8A CN103509909B (en) | 2013-10-14 | 2013-10-14 | Internal repair and maintenance method and device for converter exhaust heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310480368.8A CN103509909B (en) | 2013-10-14 | 2013-10-14 | Internal repair and maintenance method and device for converter exhaust heat boiler |
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| Publication Number | Publication Date |
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| CN103509909A CN103509909A (en) | 2014-01-15 |
| CN103509909B true CN103509909B (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310480368.8A Active CN103509909B (en) | 2013-10-14 | 2013-10-14 | Internal repair and maintenance method and device for converter exhaust heat boiler |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107962327A (en) * | 2018-01-22 | 2018-04-27 | 山东钢铁股份有限公司 | Converter flue high position leak source soldering device and method |
| CN109114571A (en) * | 2018-09-03 | 2019-01-01 | 杭州闪速机电设备有限公司 | Job platform in a kind of folding furnace |
Citations (7)
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|---|---|---|---|---|
| CN201089776Y (en) * | 2007-09-26 | 2008-07-23 | 首钢总公司 | Convertor flue maintenance equipment |
| CN201314116Y (en) * | 2008-11-21 | 2009-09-23 | 鞍山钢铁集团公司 | Telescopic small platform |
| CN201406825Y (en) * | 2009-05-07 | 2010-02-17 | 中国建筑科学研究院建筑机械化研究分院 | Hanging basket for flue maintenance |
| CN101723284A (en) * | 2010-01-01 | 2010-06-09 | 江苏能建机电实业集团有限公司 | Residual heat boiler mobile maintenance platform |
| CN201818231U (en) * | 2010-08-17 | 2011-05-04 | 鞍山钢铁集团公司 | Converter boiler high-level leakage inspection device |
| CN102311074A (en) * | 2010-06-30 | 2012-01-11 | 鞍钢集团工程技术有限公司 | Converter afterheat boiler maintenance equipment and boiler maintenance method |
| DE102011121677A1 (en) * | 2011-12-13 | 2013-06-13 | Sms Siemag Ag | Converter gas removal |
-
2013
- 2013-10-14 CN CN201310480368.8A patent/CN103509909B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201089776Y (en) * | 2007-09-26 | 2008-07-23 | 首钢总公司 | Convertor flue maintenance equipment |
| CN201314116Y (en) * | 2008-11-21 | 2009-09-23 | 鞍山钢铁集团公司 | Telescopic small platform |
| CN201406825Y (en) * | 2009-05-07 | 2010-02-17 | 中国建筑科学研究院建筑机械化研究分院 | Hanging basket for flue maintenance |
| CN101723284A (en) * | 2010-01-01 | 2010-06-09 | 江苏能建机电实业集团有限公司 | Residual heat boiler mobile maintenance platform |
| CN102311074A (en) * | 2010-06-30 | 2012-01-11 | 鞍钢集团工程技术有限公司 | Converter afterheat boiler maintenance equipment and boiler maintenance method |
| CN201818231U (en) * | 2010-08-17 | 2011-05-04 | 鞍山钢铁集团公司 | Converter boiler high-level leakage inspection device |
| DE102011121677A1 (en) * | 2011-12-13 | 2013-06-13 | Sms Siemag Ag | Converter gas removal |
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| CN103509909A (en) | 2014-01-15 |
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