CN102896456A - Metal mixed lorry furnace shell down-warping correction and repair method - Google Patents
Metal mixed lorry furnace shell down-warping correction and repair method Download PDFInfo
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- CN102896456A CN102896456A CN2011102105201A CN201110210520A CN102896456A CN 102896456 A CN102896456 A CN 102896456A CN 2011102105201 A CN2011102105201 A CN 2011102105201A CN 201110210520 A CN201110210520 A CN 201110210520A CN 102896456 A CN102896456 A CN 102896456A
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Abstract
The invention discloses a metal mixed lorry furnace shell down-warping correction and repair method which includes detaching various accessories of a metal mixed lorry furnace shell at first, maintaining cones on two sides of the furnace shell without any special treatments, arranging two electric hydraulic jacks between the bottom surface of a straight barrel of the furnace shell and a platform of a lorry body, circularly symmetrically cutting the upper portion of the straight barrel along joints of the cones and the straight barrel, cutting a small section of the lower portion of the straight barrel along a welding seam, keeping the furnace shell static, starting the two electric hydraulic jacks and jacking a down-warping portion of the bottom surface of the straight barrel of the furnace shell to the upper portion of the bottom surface of the straight barrel, leveling and positioning the joints of the straight barrel and the cones from the furnace outside to the furnace inside by hand hydraulic jacks then connecting the straight barrel with the cones in a butt jointing manner, manufacturing arc plates, rewelding the cutting portions, and finally mounting the various components of the furnace shell. By the method, down-warping of the furnace shell of the metal mixed lorry is corrected and repaired conveniently, scratch between the furnace shell and the platform of the lorry body is avoided, the service life of the furnace shell of the metal mixed lorry furnace is prolonged, and safety and normal running of the metal mixed lorry are guaranteed effectively.
Description
Technical field
The present invention relates to a kind of torpedo hot metal mixer car furnace shell lower flexure strain and correct repair method.
Background technology
Torpedo hot metal mixer car loads and transports molten iron in the mobile operation of railcar for a long time as heavy metallurgical tank equipment, the furnace shell shape of torpedo hot metal mixer car is vertical tube part and the cone portion that connects the vertical tube part two ends in the middle of being, and interior block has refractory brick, and the cone portion two ends of housing connect torpedo hot metal mixer car car body both sides by bearing bush and support housing rotates.Housing is positioned at torpedo hot metal mixer car car body platform top, and it is that inclined-plane, centre are the plane that the car body platform is both sides with the housing profile.Splendid attire molten iron in the furnace shell, because the laying bricks and carry molten iron of furnace shell, there is certain lower flexure strain in furnace shell when carrying, during new car along with molten iron unloading in the furnace shell, the lower flexure strain of furnace shell can be restored, but the torpedo hot metal mixer car furnace shell is after long-term the use, the small plastic deformation of single is accumulated, so produce macroscopical lower flexure strain, be that housing exists a certain amount of lower flexure strain in the vertical direction, when causing housing to rotate, the too small appearance scraping of the lower flexure strain position of housing and the inclined-plane of car body platform or interplanar spacing phenomenon, the safety that has had a strong impact on torpedo hot metal mixer car is normally moved.
Summary of the invention
Technical problem to be solved by this invention provides a kind of torpedo hot metal mixer car furnace shell lower flexure strain and corrects repair method, the convenient rectification of implementing torpedo hot metal mixer car furnace shell lower flexure strain of this method is repaired, avoided the scraping of furnace shell and car body platform, improved the service life of torpedo hot metal mixer car furnace shell, guaranteed that effectively the safety of torpedo hot metal mixer car is normally moved.
For solving the problems of the technologies described above, torpedo hot metal mixer car furnace shell lower flexure strain of the present invention is corrected repair method, and the torpedo hot metal mixer car furnace shell comprises vertical tube part and two cone portion that are connected the vertical tube part two ends, and this method comprises the steps:
Step 1, dismounting torpedo hot metal mixer car furnace shell annex comprise furnace shell baffle, workbench, furnace shell support and walkway board;
Step 2, cut respectively a through hole at furnace shell vertical tube part end face two ends and cone portion junction, be used for plummet city's roads furnace shell vertical tube part diameter, again along vertical tube part and the setting-out of cone portion circumferential welded seam, to furnace shell vertical tube part longitudinal center line horizontal plane;
Two electric hydraulic lifting jacks are set between step 3, furnace shell vertical tube part bottom surface and the car body platform, are used for jacking furnace shell vertical tube part bottom surface;
Step 4, the car body platform is fixed in channel-section steel respectively in bottom surface, vertical tube part two ends, channel-section steel forms bracing frame and supports furnace shell, and torsional deformation appears in the prevention housing in rectification;
The fire door of step 5, excision furnace shell vertical tube part cuts along setting-out and the vertical tube part longitudinal center line horizontal plane of step 2, cutting vertical tube part from top to bottom, two port claims cutting, then takes out the housing of vertical tube part upper deformation;
Step 6, down cut a bit ofly along furnace shell vertical tube part and cone portion weld seam again, and cut simultaneously at four angles of vertical tube part;
Step 7, according to furnace shell vertical tube part bed-plate dimension, adopt two electric hydraulic lifting jack jacking furnace shell vertical tube part bottom surfaces and reach the camber that vertical tube part is stipulated, adopt again Manual hydraulic jack outside furnace shell, in furnace shell, the vertical tube part bottom surface to be docked with cone portion leveling location and with cone portion at the furnace shell vertical tube part;
Step 8, the furnace shell vertical tube part diameter of measuring according to step 2, make arc furnace shell vertical tube part top and with the bottom assembly unit of furnace shell vertical tube part, dock with furnace shell vertical tube part bottom on arc furnace shell vertical tube part top, use the carbon arc gouge to remove the weld seam iron oxide, the preheating weld seam is implemented the weld seam welding to the 100-150 degree;
Step 9, the furnace shell vertical tube part fire door of welding excision are again removed support channel-section steel and two electric hydraulic lifting jacks of furnace shell vertical tube part bottom surface.
Further, above-mentioned two electric hydraulic lifting jacks are when jacking vertical tube part bottom surface, and its top is respectively equipped with arc, the bottom is respectively equipped with backing plate.
Because torpedo hot metal mixer car furnace shell lower flexure strain of the present invention is corrected repair method and has been adopted technique scheme, namely at first remove each annex of torpedo hot metal mixer car furnace shell, the cone portion of furnace shell both sides is not done special processing, two electric hydraulic lifting jacks are set between furnace shell vertical tube part bottom surface and the car body platform, cut straight tube top along cone portion and vertical tube part endless loop to symmetry, again along one section of weld seam cutting vertical tube part bottom, keep furnace shell to remain static, start the downwarp position of two electric hydraulic lifting jacks and jacking furnace shell vertical tube part bottom surface to top, vertical tube part bottom surface, in vertical tube part and cone portion junction with Manual hydraulic jack outside stove in the stove leveling location, dock with cone portion, make arc and again weld cutting part, multiple each parts of furnace shell of dress.The convenient rectification of implementing torpedo hot metal mixer car furnace shell lower flexure strain of this method is repaired, and has avoided the scraping of furnace shell and car body platform, has improved the service life of torpedo hot metal mixer car furnace shell, has guaranteed that effectively the safety of torpedo hot metal mixer car is normally moved.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is the schematic diagram that torpedo hot metal mixer car furnace shell lower flexure strain of the present invention is corrected repair method.
The specific embodiment
As shown in Figure 1, torpedo hot metal mixer car furnace shell lower flexure strain of the present invention is corrected repair method, and the torpedo hot metal mixer car furnace shell comprises vertical tube part 1 and two cone portion 2 that are connected vertical tube part 1 two ends, and this method comprises the steps:
Step 1, dismounting torpedo hot metal mixer car furnace shell annex comprise furnace shell baffle, workbench, furnace shell support and walkway board;
Step 2, cut respectively a through hole 11 at furnace shell vertical tube part 1 end face two ends and cone portion 2 junctions, be used for plummet city's roads furnace shell vertical tube part 1 diameter, again along vertical tube part 1 and cone portion 2 circumferential welded seam setting-outs 12, to furnace shell vertical tube part 1 longitudinal center line 13 horizontal planes;
Between step 3, furnace shell vertical tube part 1 bottom surface and the car body platform two electric hydraulic lifting jacks 3 are set, are used for jacking furnace shell vertical tube part 1 bottom surface;
Step 4, the car body platform is fixed in channel-section steel 5 respectively in bottom surface, vertical tube part 1 two ends, channel-section steel 5 forms bracing frames and supports furnace shells, and torsional deformation appears in the prevention housing in rectification;
The fire door 4 of step 5, excision furnace shell vertical tube part 1 cuts along setting-out 12 and vertical tube part longitudinal center line 13 horizontal planes of step 2, cutting vertical tube part 1 from top to bottom, two port claims cutting, then takes out the housing 14 of vertical tube part 1 upper deformation;
Step 6, down cut a bit ofly along furnace shell vertical tube part 1 and cone portion 2 weld seams again, and cut simultaneously at 1 four angles of vertical tube part;
Step 7, according to furnace shell vertical tube part 1 bed-plate dimension, adopt two electric hydraulic lifting jacks, 3 jacking furnace shell vertical tube part 1 bottom surfaces and reach the camber that vertical tube part 1 is stipulated, adopt again Manual hydraulic jack outside furnace shell, in furnace shell, vertical tube part 1 bottom surface to be docked with cone portion 2 leveling location and with cone portion 2 at furnace shell vertical tube part 1;
Step 8, furnace shell vertical tube part 1 diameter of measuring according to step 2, make arc furnace shell vertical tube part top and with the 1 bottom assembly unit of furnace shell vertical tube part, dock with furnace shell vertical tube part 1 bottom on arc furnace shell vertical tube part top, use the carbon arc gouge to remove the weld seam iron oxide, the preheating weld seam is implemented the weld seam welding to the 100-150 degree;
Step 9, the furnace shell vertical tube part fire door 4 of welding excision are again removed support channel-section steel 5 and two electric hydraulic lifting jacks 3 of furnace shell vertical tube part 1 bottom surface.
Further, the stress surface during for 3 work of assurance electric hydraulic lifting jack, above-mentioned two electric hydraulic lifting jacks 3 are when jacking vertical tube part 1 bottom surface, and its top is respectively equipped with arc 6, the bottom is respectively equipped with backing plate 7.
Through practical operation this method with furnace shell vertical tube part bottom partly without leave 1818mm change into 1790-1800mm, thereby change the 78-88mm after for rectification because of lower flexure strain posterior pyramids section and car body platform spacing 37-38mm, thus torpedo hot metal mixer car furnace shell lower flexure strain is implemented effectively to correct to repair, solved the scraping phenomenon between that the furnace shell of original torpedo hot metal mixer car produces because of lower flexure strain and the car body platform, improved the service life of torpedo hot metal mixer car furnace shell, guaranteed that the safety of torpedo hot metal mixer car is normally moved.
Claims (2)
1. a torpedo hot metal mixer car furnace shell lower flexure strain is corrected repair method, and the torpedo hot metal mixer car furnace shell comprises vertical tube part and two cone portion that are connected the vertical tube part two ends, it is characterized in that this method comprises the steps:
Step 1, dismounting torpedo hot metal mixer car furnace shell annex comprise furnace shell baffle, workbench, furnace shell support and walkway board;
Step 2, cut respectively a through hole at furnace shell vertical tube part end face two ends and cone portion junction, be used for plummet city's roads furnace shell vertical tube part diameter, again along vertical tube part and the setting-out of cone portion circumferential welded seam, to furnace shell vertical tube part longitudinal center line horizontal plane;
Two electric hydraulic lifting jacks are set between step 3, furnace shell vertical tube part bottom surface and the car body platform, are used for jacking furnace shell vertical tube part bottom surface;
Step 4, the car body platform is fixed in channel-section steel respectively in bottom surface, vertical tube part two ends, channel-section steel forms bracing frame and supports furnace shell, and torsional deformation appears in the prevention housing in rectification;
The fire door of step 5, excision furnace shell vertical tube part cuts along setting-out and the vertical tube part longitudinal center line horizontal plane of step 2, cutting vertical tube part from top to bottom, two port claims cutting, then takes out the housing of vertical tube part upper deformation;
Step 6, down cut a bit ofly along furnace shell vertical tube part and cone portion weld seam again, and cut simultaneously at four angles of vertical tube part;
Step 7, according to furnace shell vertical tube part bed-plate dimension, adopt two electric hydraulic lifting jack jacking furnace shell vertical tube part bottom surfaces and reach the camber that vertical tube part is stipulated, adopt again Manual hydraulic jack outside furnace shell, in furnace shell, the vertical tube part bottom surface to be docked with cone portion leveling location and with cone portion at the furnace shell vertical tube part;
Step 8, the furnace shell vertical tube part diameter of measuring according to step 2, make arc furnace shell vertical tube part top and with the bottom assembly unit of furnace shell vertical tube part, dock with furnace shell vertical tube part bottom on arc furnace shell vertical tube part top, use the carbon arc gouge to remove the weld seam iron oxide, the preheating weld seam is implemented the weld seam welding to the 100-150 degree;
Step 9, the furnace shell vertical tube part fire door of welding excision are again removed support channel-section steel and two electric hydraulic lifting jacks of furnace shell vertical tube part bottom surface.
2. torpedo hot metal mixer car furnace shell lower flexure strain according to claim 1 is corrected repair method, and it is characterized in that: the top of described two electric hydraulic lifting jacks is respectively equipped with arc, the bottom is respectively equipped with backing plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110210520.1A CN102896456B (en) | 2011-07-26 | 2011-07-26 | Metal mixed lorry furnace shell down-warping correction and repair method |
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| CN201110210520.1A CN102896456B (en) | 2011-07-26 | 2011-07-26 | Metal mixed lorry furnace shell down-warping correction and repair method |
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| CN102896456B CN102896456B (en) | 2014-07-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107971693A (en) * | 2017-11-23 | 2018-05-01 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of wheel chamber casing crackle repair method of titanium alloy inlet casing |
| CN109986279A (en) * | 2017-12-31 | 2019-07-09 | 乌鲁木齐森纳途信息科技有限公司 | A kind of pyrolysis furnace high pressure steam boiler water-supply valve welding repair method |
| CN111889661A (en) * | 2020-07-29 | 2020-11-06 | 新兴铸管股份有限公司 | Repair method of intermediate tank |
| CN113000981A (en) * | 2021-02-20 | 2021-06-22 | 广东韶钢松山股份有限公司 | Method for cutting spherical top furnace shell of blast furnace hot blast stove |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107971693A (en) * | 2017-11-23 | 2018-05-01 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of wheel chamber casing crackle repair method of titanium alloy inlet casing |
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| CN109986279A (en) * | 2017-12-31 | 2019-07-09 | 乌鲁木齐森纳途信息科技有限公司 | A kind of pyrolysis furnace high pressure steam boiler water-supply valve welding repair method |
| CN109986279B (en) * | 2017-12-31 | 2020-11-17 | 新疆工程学院 | Method for welding and repairing water supply valve of high-pressure steam boiler of cracking furnace |
| CN111889661A (en) * | 2020-07-29 | 2020-11-06 | 新兴铸管股份有限公司 | Repair method of intermediate tank |
| CN111889661B (en) * | 2020-07-29 | 2021-11-05 | 新兴铸管股份有限公司 | Repair method of intermediate tank |
| CN113000981A (en) * | 2021-02-20 | 2021-06-22 | 广东韶钢松山股份有限公司 | Method for cutting spherical top furnace shell of blast furnace hot blast stove |
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| CN102896456B (en) | 2014-07-16 |
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Address after: 201900 Shanghai city Baoshan District Meipu Road No. 335 Applicant after: Shanghai Baosteel Industry Technological Service Co. Ltd Address before: Five road 201900 Shanghai city Baoshan District Baosteel Weiyi, machine Applicant before: Shanghai Baogang Equipment Overhaul Co., Ltd. |
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Address after: No. 3520 Tongji Road, Baoshan District, Shanghai, 201900 Patentee after: Baowu equipment Intelligent Technology Co., Ltd Address before: 201900, 335, Pu Pu Road, Shanghai, Baoshan District Patentee before: SHANGHAI BAOSTEEL INDUSTRY TECHNOLOGICAL SERVICE Co.,Ltd. |