CN104846143B - Construction method for replacing steelmaking converter flue - Google Patents
Construction method for replacing steelmaking converter flue Download PDFInfo
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- CN104846143B CN104846143B CN201510314092.5A CN201510314092A CN104846143B CN 104846143 B CN104846143 B CN 104846143B CN 201510314092 A CN201510314092 A CN 201510314092A CN 104846143 B CN104846143 B CN 104846143B
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- construction
- petticoat pipe
- steelmaking converter
- lifting appliance
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- 238000010276 construction Methods 0.000 title claims abstract description 30
- 238000009628 steelmaking Methods 0.000 title claims abstract description 25
- 239000000779 smoke Substances 0.000 claims abstract description 16
- 238000003723 Smelting Methods 0.000 claims description 15
- 239000002965 ropes Substances 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 11
- 230000003100 immobilizing Effects 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000203 mixtures Substances 0.000 abstract 1
- 238000010586 diagrams Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering processes Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 239000007787 solids Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000004744 fabrics Substances 0.000 description 1
- 239000003546 flue gases Substances 0.000 description 1
- 239000007789 gases Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011901 water Substances 0.000 description 1
Abstract
Description
Technical field
The present invention relates to a kind of construction method, more particularly, to a kind of construction method for changing steel-smelting revolving furnace smoke canal, Belong to metallurgical production maintenance of equipment maintenance technology field.
Background technology
Steel mill vaporizing flue of steelmaking converter equipment operationally will collect high-temperature flue gas to greatest extent, bear highest Furnace gas temperature and acutely frequently temperature change.Therefore the evaporated flue equipment for using under such rugged environment is easy to always Change, inevitably there is the situation for burning out, corroding.When there is drainage if as there is scaling loss, corrosion etc., meeting again Hidden danger is left to safety in production, it is impossible to meet normal Production requirement, therefore the evaporated flue equipment to steelmaking converter is When replacing just become maintenance of equipment, safeguard requisite work.And it is arranged on the evaporated flue at the top of steelmaking converter The middle and upper part of the factory building of narrow space is usually located at all, either maintenance, maintenance or integral replacing are all inconvenient.Existing skill In art, especially in integral replacing, not only need to remove the plant and equipment around evaporated flue, will also use large-scale mobile Hanging device, such as large-scale crane etc., it is not only costly, and also the cycle is long.
The content of the invention
The technical problem to be solved is：A kind of simple to operate, construction period first mate shortening, renewal cost are provided The construction method for changing steel-smelting revolving furnace smoke canal for substantially reducing.
By solving the technical scheme that adopts of above-mentioned technical problem it is：A kind of construction party for changing steel-smelting revolving furnace smoke canal Method, comprises the following steps,
To first need the group's cover of evaporated flue changed, and the installation center of fixed petticoat pipe section that is connected with this group of covers and On immobilizing foundation outside absolute altitude difference mapping to the steelmaking converter；Then in the vertical direction and horizontal outer side of group cover It is respectively mounted lifting appliance；Then by described group's cover and described fixed petticoat pipe section successively respectively from described evaporated flue On cut apart；Hang under the cooperation of the hoisting machinery subsequently arranged on the outside of the steelmaking converter by described lifting appliance Remove；It is last to cover for the new group for changing again and fixed petticoat pipe section, the installation center carried over mapping before and mark A height of measuring basis, is installed on described evaporated flue by cooperation of the described lifting appliance in the hoisting machinery, this Sample just completes the replacing construction working of a steel-smelting revolving furnace smoke canal
Wherein in the described fixed petticoat pipe section of cutting, the group's cover for cutting off to be cut is carried out after hanging dismounting again.
The invention has the beneficial effects as follows：The application has been respectively mounted by the vertical direction covered in the group and horizontal outer side Equipment is hung, is removed under the cooperation of the hoisting machinery then arranged on the outside of the steelmaking converter by described lifting appliance and is pacified The described group's cover of dress and fixed petticoat pipe section.So, the factory building that not only need not remove, recover afterwards evaporated flue position in advance sets It is standby, large-scale movable hoisting equipment is not more needed, group's cover and the replacing behaviour of fixed petticoat pipe section of evaporated flue is not only made Make very simple, construction period first mate to shorten, and due to no substantial amounts of dismounting plant and equipment, it is not required that such as large-scale crane The large-scale mobile hanging device of class, also makes renewal cost substantially reduce, in maintenance, maintenance and replacing suitably in similar devices Popularization and application.
It is further to remove described group's cover and described consolidate being coordinated using lifting appliance and described hoisting machinery Determine to be carried out by following steps in advance during petticoat pipe section, the lifting appliance for first passing through vertical direction is sling the group's cover or fixed for cutting down Then described group is covered by the lifting appliance of horizontal outer side or fixed petticoat pipe section is pulled under described hoisting machinery by petticoat pipe section Side, then dismounting scene is hung by described hoisting machinery, complete the dismounting of group's cover and fixed petticoat pipe section；It is used in installation Sequence of construction when the new group's cover changed and fixed petticoat pipe section is contrary.
It is further that described hoisting machinery is the driving on the outside of the steelmaking converter in workshop.
Such scheme it is preferable that, described lifting appliance is hoist engine.
Be further be arranged in group's cover vertical direction hoist engine be load-carrying hoist engine, the load-carrying hoist engine Arrangement height and the driving setting height(from bottom) be adapted.
Be further be arranged in group's cover horizontal outer side hoist engine be rack winch, the rack winch That running track away from the steelmaking converter of horizontally disposed distance and the driving be adapted.
It is further to there also is provided pull rope between described rack winch and described steelmaking converter and stably turn To pulley, after the pull rope pulled out from described rack winch first bypasses described pull rope stable turning pulley, then with institute State group's cover or fixed petticoat pipe section connection.
It is further that the setting height(from bottom) of the pull rope stable turning pulley is not higher than the installation of the rack winch Highly, setting height(from bottom) of the setting height(from bottom) of the rack winch less than group cover.
Description of the drawings
Fig. 1 is that arrangement of the present invention for changing the lifting appliance being related to of the construction method of steel-smelting revolving furnace smoke canal is illustrated Figure；
The step of Fig. 2～Fig. 3 is covered for dismounting group schematic diagram；
The step of Fig. 4～Fig. 7 is for removing fixed petticoat pipe section schematic diagram.
It is labeled as in figure：Group's cover 1, fixed petticoat pipe section 2, steelmaking converter 3, lifting appliance 4, hoisting machinery 5, running track 6, Pull rope stable turning pulley 7, pull rope 8.
Specific embodiment
It is that a kind of simple to operate, the construction period first mate shortening that provides of the present invention, renewal cost are bright as shown in Fig. 1～Fig. 7 The aobvious construction method for changing steel-smelting revolving furnace smoke canal for reducing.Described construction method is comprised the following steps,
First by group's cover 1 of the evaporated flue for needing to change, and in the installation of the fixed petticoat pipe section 2 being connected with this group of covers 1 On immobilizing foundation outside the heart and absolute altitude difference mapping to the steelmaking converter 3；Then in vertical direction and the water of group cover 1 Flat outside is respectively mounted lifting appliance 4；Then by described group's cover 1 and described fixed petticoat pipe section 2 successively respectively from described Evaporated flue on cut apart；The hoisting machinery subsequently arranged on the outside of the steelmaking converter 3 by described lifting appliance 4 Dismounting is hung under 5 cooperation；It is last to cover 1 and fixed petticoat pipe section 2 for the new group for changing again, carried over mapping before Installation center and absolute altitude be measuring basis, by described lifting appliance 4 the hoisting machinery 5 cooperation be installed to it is described Evaporated flue on, complete the replacing construction working of a steel-smelting revolving furnace smoke canal,
Wherein in the described fixed petticoat pipe section 2 of cutting, the group's cover 1 for cutting off to be cut is carried out after hanging dismounting again.This Shen Lifting appliance 4 is respectively mounted by the vertical direction and horizontal outer side in group cover 1 please, then by described lifting appliance Described group's cover 1 and fixed petticoat pipe section is removed and is installed under the cooperation of 4 hoisting machineries 5 arranged on the outside of the steelmaking converter 3 2.So, not only need not remove, recover afterwards the plant and equipment at evaporated flue position in advance, more not need large-scale movable type Hanging device, not only makes group's cover and replacement operation very simple, the construction period first mate of fixed petticoat pipe section of evaporated flue Shorten, and due to no substantial amounts of dismounting plant and equipment, it is not required that such as the large-scale mobile hanging device of large-scale crane class, Renewal cost is also made substantially to reduce, popularization and application in maintenance, maintenance and replacing suitably in similar devices.
Above-mentioned embodiment, in order to reduce dismounting and the amount of resuming work of plant and equipment to greatest extent, while and improve The security of operation, and reduce the buying and/or production of patent equipment as far as possible, using lifting appliance 4 and described lifting Machinery 5 coordinates to be carried out in advance by following steps when removing described groups' cover 1 and described fixed petticoat pipe section 2, first passes through on vertically The lifting appliance 4 of side is sling the 1 or fixed petticoat pipe section 2 of group's cover for cutting down, then by the lifting appliance 4 of horizontal outer side by institute The group's cover 1 or fixed petticoat pipe section 2 stated is pulled to below described hoisting machinery 5, then it is existing to hang dismounting by described hoisting machinery 5 , complete the dismounting of group's cover 1 and fixed petticoat pipe section 2；In the new group's cover 1 and fixed petticoat pipe section 2 installed for changing Sequence of construction it is contrary；Described hoisting machinery 5 is the driving on the outside of the steelmaking converter in workshop；Described lifting Equipment 4 is hoist engine；Be arranged in the group to cover the hoist engine of 1 vertical direction is load-carrying hoist engine, the cloth of the load-carrying hoist engine The setting height(from bottom) that height is put with the driving is adapted；The hoist engine for being arranged in 1 horizontal outer side of group's cover is rack winch, That running track 6 away from the steelmaking converter 3 of the horizontally disposed distance of the rack winch and the driving is mutually fitted Should；Pull rope stable turning pulley 7 is there also is provided between described rack winch and described steelmaking converter 3, from described The pull rope 8 that pulls out of rack winch first bypass described pull rope stable turning pulley 7 after, then with group cover 1 or solid Determine petticoat pipe section 2 to connect；The installation that the setting height(from bottom) of the pull rope stable turning pulley 7 is not higher than the rack winch is high Degree, the setting height(from bottom) of the rack winch cover 1 setting height(from bottom) less than the group.So, not only construct convenient, security risk Substantially reduce, and reduce measure workload to greatest extent, reduce the cost of overhaul, highly shortened maintenance duration, For resuming production early, realize that productivity effect provides solid foundation.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314092.5A CN104846143B (en) | 2015-06-09 | 2015-06-09 | Construction method for replacing steelmaking converter flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510314092.5A CN104846143B (en) | 2015-06-09 | 2015-06-09 | Construction method for replacing steelmaking converter flue |
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| Publication Number | Publication Date |
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| CN104846143A CN104846143A (en) | 2015-08-19 |
| CN104846143B true CN104846143B (en) | 2017-03-22 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015729B (en) * | 2016-06-08 | 2018-03-06 | 中国十七冶集团有限公司 | A kind of reverse method in place of evaporated flue under sealing power house |
| CN107513599A (en) * | 2016-06-17 | 2017-12-26 | 中冶宝钢技术服务有限公司 | Upper petticoat pipe hanging method based on BIM technology |
| CN106435087B (en) * | 2016-08-29 | 2018-08-17 | 中国十七冶集团有限公司 | A kind of converter vaporization flue piecewise combination installation method |
| CN108817841A (en) * | 2018-07-17 | 2018-11-16 | 迁安首钢设备结构有限公司 | Mammoth conveter waste heat boiler evaporated flue uses later period maintenance, local replacing technique |
| CN109022672B (en) * | 2018-08-24 | 2020-03-10 | 中国二十冶集团有限公司 | Installation method of converter vaporization cooling flue during maintenance |
| CN109505423A (en) * | 2018-11-26 | 2019-03-22 | 五冶集团上海有限公司 | A kind of concrete chimney method for dismounting and its application |
| CN110241285A (en) * | 2019-07-25 | 2019-09-17 | 攀钢集团工程技术有限公司 | Converter mouth petticoat pipe more changing device, replacement structure and replacing options |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS602617A (en) * | 1983-06-21 | 1985-01-08 | Kawasaki Heavy Ind Ltd | Method for fractionating, recovering and reutilizing converter gas |
| CN102703640A (en) * | 2012-04-17 | 2012-10-03 | 中国十七冶集团有限公司 | Method of maintenance and lifting for moving section flue at converter mouth |
-
2015
- 2015-06-09 CN CN201510314092.5A patent/CN104846143B/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS602617A (en) * | 1983-06-21 | 1985-01-08 | Kawasaki Heavy Ind Ltd | Method for fractionating, recovering and reutilizing converter gas |
| CN102703640A (en) * | 2012-04-17 | 2012-10-03 | 中国十七冶集团有限公司 | Method of maintenance and lifting for moving section flue at converter mouth |
Non-Patent Citations (1)
| Title |
|---|
| 福建三钢1号转炉汽化烟道炉口段拆除更换施工技术;王茂伙;《南方金属》;20081031(第164期);第47-50页 * |
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|---|---|
| CN104846143A (en) | 2015-08-19 |
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