CN103509909A - 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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- CN103509909A CN103509909A CN201310480368.8A CN201310480368A CN103509909A CN 103509909 A CN103509909 A CN 103509909A CN 201310480368 A CN201310480368 A CN 201310480368A CN 103509909 A CN103509909 A CN 103509909A
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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 jointly to the sealing of original furnace gas and recovery system, because original furnace gas temperature is up to 1600 ℃, movable gas hood and waste heat boiler are by refrigeration cycle water for cooling, slag splash during due to high temperature, the oxygen blast of oxygen burn into, the cooling water circulation reason such as bad, cause movable gas hood and the waste heat boiler seepage that often ftractures, need to look into, weld leakage operation to converter movable hood and waste heat boiler, this is that converter installation is protected regular, main events in operation in product maintenance.For the maintenance of waste heat boiler high-level leakage (leaking with argon arc welding weldering), staff need take, tear open temporary ladder and job platform (supporting maintainer and argon welder equipment) approaching under 70 degree hot environments, not only use duration, dangerous high, in maintenance process, need on boiler tube wall, weld upholder simultaneously, maintenance removes with gas welding while finishing again, can cause damage to boiler body, has greatly increased maintainer's labour intensity.
Application number: 201010216996, disclose a kind of Converter Residual Heat Boiler repair apparatus and repair furnaceman's skill, can only be for repairing rotary furnace use, and irremovable, can only, for the specific repairing rotary furnace of its below, also cannot look into, weld for Converter Residual Heat Boiler leakage operation simultaneously.
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 be in Converter Residual Heat Boiler fast construction escape way and job platform, and can meet and overhaul needs, reduction labour intensity.
For achieving the above object, the present invention is achieved through the following technical solutions:
An interior examination and repair method, comprises the following steps:
1) with 1 steel cable and 2 chain handling umbrellas, jump, wherein steel cable lies on control lever, and two chains lie on the hanger of bearing bar both sides; The umbrella that steel cable is suspended to handling rounding state on the suspension hook of lifting machine is jumped, and then Cong Yangqiang hole is put into umbrella jump shot in boiler;
2) when umbrella is jumped 0.8-1.2 rice, leak source below in boiler, chain is suspended to umbrella and jumps on support, continue toward the steel cable of transferring on control lever, the weight that umbrella is jumped is transformed on chain by steel cable, at action of gravity subumbrella, jumps Automatic-expanding;
3) will insert jumping is lifted between converter and waste heat boiler;
4) take and insert that to jump be fulcrum, 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 and is inserted on the sleeve of jumping, grade climbing ladder is fixed, maintainer jumps onto to umbrella by inserting on jumping and plug-in type grade climbing ladder, the position-limit mechanism of jumping onto by umbrella is jumped umbrella to be fixed on boiler wall, on the job platform of jumping at umbrella, carries out leak source soldering operation;
5), during the end of job, by inverted sequence maintainer Xia Dao ground, 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 shape.
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 be take platform as axle rotation, 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 a plurality of bottoms forms, and each ladder is realized connection by sleeve pipe being inserted to the top of adjacent ladder, and the ladder of bottommost is pegged graft its sleeve pipe to insert the sleeve of jumping, and on the ladder of top, is fixed with A-frame.
Compared with prior art, the invention has the beneficial effects as follows:
Realize fast construction job platform in Converter Residual Heat Boiler, met maintenance needs, reduced labour intensity.
Umbrella is jumped and have been adopted accordion structure, can the umbrella jump shot in rounding state be entered in restricted clearance from relatively little hole, then launches, supports and become firm mobile platform, and personnel can stand on mobile platform different sites leak source is carried out to soldering.
Slotting jumping not the used time do not take redundant space, and this slotting jumping can rotate around stationary shaft, maintenance different directions is very convenient, has alleviated greatly maintainer's labour intensity, for maintainer's safety provides guarantee.
Band grade climbing ladder adopts plug in construction, and there is A-frame on top, leads and slide in waste heat boiler fin groove, in 10 minutes, can be built into obliquely upward rapidly 18 meters of cat ladders, and 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 umbrella is jumped structural representation.
In figure: 1-chain 2-Yang Qiang hole 3-umbrella is jumped 4-grade climbing ladder 5-boiler 6-and inserted the spacing gusset 25-of jumping 7-converter 8-control lever 9-hanger 10-bearing bar 12-base 14-gear rotating mechanism 15-traction sliding sleeve 16-pull bar 20-push rod 22-job platform 23-folding 24-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 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) with 1 steel cable 27 and 2 chain 1 handling umbrellas, jump 3, wherein steel cable 27 lies on control lever 8, and two chains 1 lie on the hanger 9 of bearing bar 10 both sides; The umbrella that steel cable 27 is suspended to handling rounding state on the suspension hook of lifting machine jumps 3, and then Cong Yangqiang hole 2 is jumped 3 by umbrella and rendered in boiler 5;
2) when leak source below 0.8-1.2 rice of umbrella jumping 3 in boiler 5; Chain on bearing bar 10 1 is suspended to umbrella and jumps on frame 35, continue toward the steel cable 27 of transferring on control lever 8, the weight of umbrella jumping 3 is transformed on chain 1 by steel cable 27, at action of gravity subumbrella, jumps 3 Automatic-expandings;
3) will insert jumping 6 is lifted between converter 7 and waste heat boiler 5.
4) take and insert that to jump 6 be fulcrum, plug-in type grade climbing ladder 4 is pushed to umbrella and jumps 3 tops, the sleeve pipe of the bottom position of grade climbing ladder 4 26 is arranged on and is inserted on the sleeve 33 of jumping 6, make grade climbing ladder 4 fixing, maintainer jumps on 3 to umbrella by inserting on jumping 6 and plug-in type grade climbing ladder 4, the position-limit mechanism of jumping on 3 by umbrella is fixed on umbrella jumping 3 on boiler 5 furnace walls, on the job platform 22 of umbrella jumping 3, carries out leak source soldering operation;
5), during the end of job, by inverted sequence maintainer Xia Dao ground, withdraw that umbrella jumps 3, grade climbing ladder 4 and insert and jump 6.
The device of realizing above-mentioned examination and repair method comprises umbrella jumping 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 ends are fixed with hanger 9, lower end is connected with base 12, the inside that control lever 8 inserts bearing bar 10, control lever 8 bottoms are 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 are 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 are T shape, 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 be take platform 32 as axle rotation, expansion pipe 31 ends are provided with safe fence 29, and sleeve 33 is fixed on expansion pipe 31; On safe fence 29, be fixed with pipe connecting 28, during use, pipe connecting 28 be plugged on expansion pipe 31, platform 32 is through expansion pipe 31, and platform 32 lower ends are fixing by bearing pin and chain-wales base plate 30.
The ladder 25 that grade climbing ladder 4 is fixed with sleeve pipe 26 by a plurality of bottoms forms, each ladder 25 is realized connection by sleeve pipe 26 is inserted to adjacent ladder 25 top, the ladder 25 of bottommost is inserted the sleeve of jumping 6 by its sleeve pipe 26 grafting, on 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 design; can in 10 minutes, can be built into obliquely upward rapidly 18 meters of cat ladders; operating efficiency is high; there is A-frame 34 on grade climbing ladder 4 tops; A-frame 34 can lead and slide in waste heat boiler 5 fin grooves; grade climbing ladder 4 bottoms are plugged on jumps on 6, can anti-skidding, play safeguard protection effect.
The present invention has realized fast construction escape way and job platform in Converter Residual Heat Boiler, has met maintenance needs, has reduced labour intensity.
Umbrella is jumped and have been adopted accordion structure, can the umbrella jump shot in rounding state be entered in restricted clearance from relatively little hole, then launches, supports and become firm mobile platform, and personnel can stand on mobile platform different sites leak source is carried out to soldering.
Slotting jumping not the used time do not take redundant space, and this slotting jumping can rotate around stationary shaft, maintenance different directions is very convenient, has alleviated greatly maintainer's labour intensity, for maintainer's safety provides guarantee.
Band grade climbing ladder adopts plug in construction, and there is A-frame on top, leads and slide in waste heat boiler fin groove, in 10 minutes, can be built into obliquely upward rapidly 18 meters of cat ladders, and operating efficiency is high.
Claims (4)
1. an examination and repair method in Converter Residual Heat Boiler, is characterized in that, comprises the following steps:
1) with 1 steel cable and 2 chain handling umbrellas, jump, wherein steel cable lies on control lever, and two chains lie on the hanger of bearing bar both sides; The umbrella that steel cable is suspended to handling rounding state on the suspension hook of lifting machine is jumped, and then Cong Yangqiang hole is put into umbrella jump shot in boiler;
2) when umbrella is jumped 0.8-1.2 rice, leak source below in boiler, chain is suspended to umbrella and jumps on support, continue toward the steel cable of transferring on control lever, the weight that umbrella is jumped is transformed on chain by steel cable, at action of gravity subumbrella, jumps Automatic-expanding;
3) will insert jumping is lifted between converter and waste heat boiler;
4) take and insert that to jump be fulcrum, 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 and is inserted on the sleeve of jumping, grade climbing ladder is fixed, maintainer jumps onto to umbrella by inserting on jumping and plug-in type grade climbing ladder, the position-limit mechanism of jumping onto by umbrella is jumped umbrella to be fixed on boiler wall, on the job platform of jumping at umbrella, carries out leak source soldering operation;
5), during the end of job, by inverted sequence maintainer Xia Dao ground, 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 and to 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 shape.
3. examination and repair method in a kind of Converter Residual Heat Boiler according to claim 1, it is characterized in that, slotting jumping described in step 3) 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, and expansion pipe is flexibly connected with chain-wales base plate by platform, and expansion pipe be take platform as axle rotation, 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, the ladder that grade climbing ladder described in step 4) is fixed with sleeve pipe by a plurality of bottoms forms, each ladder is realized connection by sleeve pipe being inserted to the top of adjacent ladder, the sleeve that the ladder of bottommost is pegged graft its sleeve pipe to jump, is fixed with A-frame on the ladder of top.
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 true CN103509909A (en) | 2014-01-15 |
| CN103509909B 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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Cited By (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 |
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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 |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN103509909B (en) | 2015-03-11 |
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