CN104846143B - Construction method for replacing steelmaking converter flue - Google Patents

Construction method for replacing steelmaking converter flue Download PDF

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Publication number
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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CN
China
Prior art keywords
cover
construction
petticoat pipe
steelmaking converter
lifting appliance
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Application number
CN201510314092.5A
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Chinese (zh)
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CN104846143A (en
Inventor
徐琦
张雨
胡健
云飞
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中国十九冶集团有限公司
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Priority to CN201510314092.5A priority Critical patent/CN104846143B/en
Publication of CN104846143A publication Critical patent/CN104846143A/en
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Publication of CN104846143B publication Critical patent/CN104846143B/en

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Abstract

The invention discloses a construction method, in particular relates to a construction method for replacing a steelmaking converter flue and belongs to the technical field of repair and maintenance of metallurgical production equipment. The construction method for replacing the steelmaking converter flue is simple to operate, and the construction period of the construction method is greatly shortened, while the replacement cost is obviously reduced. According to the construction method, hoisting apparatuses are mounted above a cluster cover in the vertical direction and on the outer side of the cluster cover in the horizontal direction, respectively; and next, the cluster cover and a fixed smoke cover section can be removed and mounted by use of the hoisting apparatuses in combination with a hoisting machine arranged on the outer side of the steelmaking converter.

Description

For changing the construction method of steel-smelting revolving furnace smoke canal

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)

1. a kind of construction method for changing steel-smelting revolving furnace smoke canal, it is characterised in that:Comprise the following steps,
First by group's cover (1) of the evaporated flue for needing to change, and the installation of fixed petticoat pipe section (2) being connected with group's cover (1) Center and absolute altitude are corresponded on the outside immobilizing foundation of the steelmaking converter (3) respectively;Then the group cover (1) it is vertical on Side and horizontal outer side are respectively mounted lifting appliance (4);Then by described group's cover (1) and described fixed petticoat pipe section (2) point first Cut apart from described evaporated flue respectively afterwards;Subsequently by described lifting appliance (4) in the steelmaking converter (3) outward Dismounting is hung under the cooperation of the hoisting machinery (5) of side arrangement;It is last to cover (1) and fixed petticoat pipe section for the new group for changing again (2) installation center for, being carried over mapping before and absolute altitude as measuring basis, by described lifting appliance (4) described The cooperation of hoisting machinery (5) is installed on described evaporated flue, and the replacing for completing a steel-smelting revolving furnace smoke canal is applied Work works,
Wherein at cutting described fixed petticoat pipe section (2), group's cover (1) for cutting off to be cut is carried out after hanging dismounting again,
Described hoisting machinery (5) is the driving on the outside of the steelmaking converter in workshop,
Described lifting appliance (4) is hoist engine.
2. the construction method for changing steel-smelting revolving furnace smoke canal according to claim 1, it is characterised in that:Using lifting It is to press that equipment (4) is coordinated with described hoisting machinery (5) when removing described group's cover (1) and described fixed petticoat pipe section (2) State what step was carried out, the lifting appliance (4) for first passing through vertical direction is sling group's cover (1) or fixed petticoat pipe section (2) for cutting down, Then described group's cover (1) or fixed petticoat pipe section (2) are pulled to by described hoisting machinery by the lifting appliance (4) of horizontal outer side (5) below, then dismounting scene is hung by described hoisting machinery (5), completes group's cover (1) and fix petticoat pipe section (2) Remove;Sequence of construction in new group's cover (1) and fixed petticoat pipe section (2) installed for changing is contrary.
3. the construction method for changing steel-smelting revolving furnace smoke canal according to claim 1, it is characterised in that:It is arranged in described The hoist engine of group's cover (1) vertical direction is load-carrying hoist engine, the arrangement height of the load-carrying hoist engine and the installation of the driving Highly it is adapted.
4. the construction method for changing steel-smelting revolving furnace smoke canal according to claim 1, it is characterised in that:It is arranged in described Group cover (1) horizontal outer side hoist engine be rack winch, horizontally disposed distance and the driving of the rack winch It is adapted away from that running track (6) of the steelmaking converter (3).
5. the construction method for changing steel-smelting revolving furnace smoke canal according to claim 4, it is characterised in that:Lead in described Draw and pull rope stable turning pulley (7) is there also is provided between hoist engine and described steelmaking converter (3), from described traction elevator After the pull rope (8) that machine is pulled out first bypasses described pull rope stable turning pulley (7), then (1) or fixed cigarette is covered with the group Cover section (2) connects.
6. the construction method for changing steel-smelting revolving furnace smoke canal according to claim 5, it is characterised in that:The pull rope The setting height(from bottom) of stable turning pulley (7) is not higher than the setting height(from bottom) of the rack winch, the installation of the rack winch The setting height(from bottom) of (1) is covered less than the group highly.
CN201510314092.5A 2015-06-09 2015-06-09 Construction method for replacing steelmaking converter flue CN104846143B (en)

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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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CN104846143B true CN104846143B (en) 2017-03-22

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
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

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JPS602617A (en) * 1983-06-21 1985-01-08 Kawasaki Heavy Ind Ltd Method for fractionating, recovering and reutilizing converter gas
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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

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