CN104846143A - Construction method for replacing steelmaking converter flue - Google Patents

Construction method for replacing steelmaking converter flue Download PDF

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Publication number
CN104846143A
CN104846143A CN201510314092.5A CN201510314092A CN104846143A CN 104846143 A CN104846143 A CN 104846143A CN 201510314092 A CN201510314092 A CN 201510314092A CN 104846143 A CN104846143 A CN 104846143A
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China
Prior art keywords
cover
steel
petticoat pipe
changing
constructional
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CN201510314092.5A
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Chinese (zh)
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CN104846143B (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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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 constructional method of steel-smelting revolving furnace smoke canal

Technical field

The present invention relates to a kind of constructional method, especially relating to a kind of constructional method for changing steel-smelting revolving furnace smoke canal, belong to metallurgical production maintenance of equipment maintenance technology field.

Background technology

Steelworks vaporizing flue of steelmaking converter equipment operationally will collect high-temperature flue gas to greatest extent, bears the highest furnace gas temperature and violent temperature variation frequently.Therefore the evaporated flue equipment used under rugged environment like this is easy to aging, inevitably there is the situation burning out, corrode.If when there is drainage because there is scaling loss, corrosion etc., hidden danger can be left again to safety in production, cannot meet normal Production requirement, therefore carrying out instant replacing to the evaporated flue equipment of steel-making converter just becomes maintenance of equipment, safeguards requisite work.And the evaporated flue being arranged on steel-making converter top is all usually located at the middle and upper part of the factory building of narrow space, is no matter maintenance, safeguards or integral replacing be all inconvenience.In prior art, especially when integral replacing, not only need to remove the plant and equipment around evaporated flue, also will use large-scale mobile hanging device, as large-scale crane etc., not only costly, and the cycle is long.

Summary of the invention

Technical problem to be solved by this invention is: provide the constructional method for changing steel-smelting revolving furnace smoke canal that a kind of simple to operate, construction period first mate shortens, replacement charge obviously reduces.

For solving the problems of the technologies described above adopted technical scheme be: a kind of constructional method for changing steel-smelting revolving furnace smoke canal, comprises the following steps,

First will need group's cover of the evaporated flue changed, and cover the mounting center of the fixing petticoat pipe section be connected with this group and absolute altitude distinguishes mapping on the fixed base of described steel-making converter outside; The vertical direction of then covering described group and horizontal outer side install lifting rig respectively; Then described group cover and described fixing petticoat pipe section are successively cut apart from described evaporated flue respectively; Dismounting is hung under the cooperation of the hoisting machinery arranged outside described steel-making converter by described lifting rig subsequently; Finally the newer group being used for changing is covered and fixes petticoat pipe section, the mounting center carried over mapping before and absolute altitude are measuring basis, be installed on described evaporated flue in the cooperation of described hoisting machinery by described lifting rig, complete the replacing construction working of a steel-smelting revolving furnace smoke canal

Wherein when the fixing petticoat pipe section described in cutting, carry out again after the group's cover got off to be cut hangs dismounting.

The invention has the beneficial effects as follows: the application installs lifting rig respectively by the vertical direction of covering described group and horizontal outer side, the group's cover described in removing and install under the cooperation of the hoisting machinery then arranged outside described steel-making converter by described lifting rig and fix petticoat pipe section.Like this, not only do not need the plant and equipment removing in advance, recover afterwards evaporated flue position, more do not need large-scale movable hoisting equipment, not only make the described group of evaporated flue cover and fix that the replacement operation of petticoat pipe section is very simple, construction period first mate shortens, and owing to there is no a large amount of dismounting plant and equipments, do not need the large-scale mobile hanging device as large-scale crane class, also make replacement charge obviously reduce, be suitable for applying in the maintenance of similar devices, maintenance and replacing yet.

Be further, coordinate the group described in removing to cover adopting lifting rig with described hoisting machinery and described fixing petticoat pipe section time carry out in advance by following step, first by the lifting rig of vertical direction sling cut down group cover or fix petticoat pipe section, then by the lifting rig of horizontal outer side by described group cover or fix petticoat pipe section and be pulled to below described hoisting machinery, hang by described hoisting machinery the scene of dismounting again, complete the dismounting that described group covers and fixes petticoat pipe section; Sequence of construction at the new group's cover installed for changing and when fixing petticoat pipe section is contrary.

Further, described hoisting machinery is be arranged on the driving outside described steel-making converter in workshop.

The optimal way of such scheme is, described lifting rig is windlass.

Further, the windlass being arranged in described group's cover vertical direction is load-carrying windlass, and the layout height of described load-carrying windlass adapts with the mounting height of described driving.

Further, the windlass being arranged in described group's cover horizontal outer side is rack winch, and the horizontally disposed distance of described rack winch adapts with that orbit away from described steel-making converter of described driving.

Be further, traction rope stable turning pulley is also furnished with between described rack winch and described steel-making converter, after first walking around described traction rope stable turning pulley from the traction rope of described rack winch pull-out, then cover with described group or fix petticoat pipe section and be connected.

Further, the mounting height of described traction rope stable turning pulley not higher than the mounting height of described rack winch, the mounting height that the mounting height of described rack winch is covered lower than described group.

Accompanying drawing explanation

Fig. 1 is that the present invention is for changing the layout schematic diagram of the lifting rig related to of the constructional method of steel-smelting revolving furnace smoke canal;

Fig. 2 ~ Fig. 3 is the step schematic diagram removing group's cover;

Fig. 4 ~ Fig. 7 is the step schematic diagram removing fixing petticoat pipe section.

Be labeled as in figure: group covers 1, fixes petticoat pipe section 2, steel-making converter 3, lifting rig 4, hoisting machinery 5, orbit 6, traction rope stable turning pulley 7, traction rope 8.

Embodiment

It is the constructional method for changing steel-smelting revolving furnace smoke canal that a kind of simple to operate, construction period first mate provided by the invention shortens, replacement charge obviously reduces as shown in Fig. 1 ~ Fig. 7.Described constructional method comprises the following steps,

The group of evaporated flue changed first will be needed to cover 1, and cover the mounting center of the fixing petticoat pipe section 2 that 1 is connected with this group and absolute altitude distinguishes mapping on the fixed base of described steel-making converter 3 outside; Then described group cover 1 vertical direction and horizontal outer side lifting rig 4 is installed respectively; Then described group is covered 1 and described fixing petticoat pipe section 2 successively cut apart from described evaporated flue respectively; Dismounting is hung under the cooperation of the hoisting machinery 5 arranged outside described steel-making converter 3 by described lifting rig 4 subsequently; Finally the newer group being used for changing is covered 1 and fixing petticoat pipe section 2, the mounting center carried over mapping before and absolute altitude are measuring basis, be installed on described evaporated flue by described lifting rig 4 in the cooperation of described hoisting machinery 5, complete the replacing construction working of a steel-smelting revolving furnace smoke canal

Wherein cut described in fixing petticoat pipe section 2 time, the group got off to be cut cover 1 hang dismounting after carry out again.The application installs lifting rig 4 respectively by the vertical direction and horizontal outer side of covering 1 described group, and the group described in removing under the cooperation of the hoisting machinery 5 then arranged outside described steel-making converter 3 by described lifting rig 4 and installing covers 1 and fixing petticoat pipe section 2.Like this, not only do not need the plant and equipment removing in advance, recover afterwards evaporated flue position, more do not need large-scale movable hoisting equipment, not only make the described group of evaporated flue cover and fix that the replacement operation of petticoat pipe section is very simple, construction period first mate shortens, and owing to there is no a large amount of dismounting plant and equipments, do not need the large-scale mobile hanging device as large-scale crane class, also make replacement charge obviously reduce, be suitable for applying in the maintenance of similar devices, maintenance and replacing yet.

Above-mentioned embodiment, in order to reduce dismounting and the amount of resuming work of plant and equipment to greatest extent, improve again the security of operation simultaneously, and reduce buying and/or the production of patent equipment as far as possible, carry out in advance by following step when adopting lifting rig 4 to coordinate the group described in removing to cover 1 and described fixing petticoat pipe section 2 with described hoisting machinery 5, first cover 1 or fixing petticoat pipe section 2 by the lifting rig 4 of the vertical direction group cut down that slings, then by the lifting rig 4 of horizontal outer side described group covered 1 or fixing petticoat pipe section 2 be pulled to below described hoisting machinery 5, the scene of dismounting is hung again by described hoisting machinery 5, complete the dismounting that described group covers 1 and fixing petticoat pipe section 2, sequence of construction when 1 and fixing petticoat pipe section 2 are covered in installation for the new group changed is contrary, described hoisting machinery 5 is for being arranged on the driving outside described steel-making converter in workshop, described lifting rig 4 is windlass, being arranged in the windlass that described group covers 1 vertical direction is load-carrying windlass, and the layout height of described load-carrying windlass adapts with the mounting height of described driving, being arranged in the windlass that described group covers 1 horizontal outer side is rack winch, and the horizontally disposed distance of described rack winch adapts with that orbit 6 away from described steel-making converter 3 of described driving, traction rope stable turning pulley 7 is also furnished with between described rack winch and described steel-making converter 3, from described rack winch pull-out traction rope 8 first walk around described traction rope stable turning pulley 7 after, then with described group cover 1 or fixing petticoat pipe section 2 be connected, the mounting height of described traction rope stable turning pulley 7 is not higher than the mounting height of described rack winch, and the mounting height of described rack winch covers the mounting height of 1 lower than described group.Like this, not only construct convenient, security risk obviously reduces, and decreases measure workload to greatest extent, reduces the cost of overhaul, highly shortened maintenance duration, for resuming production early, realizing productivity effect and providing solid foundation.

Claims (8)

1., for changing a constructional method for steel-smelting revolving furnace smoke canal, it is characterized in that: comprise the following steps,
First will need group's cover (1) of the evaporated flue changed, and cover the mounting center of the fixing petticoat pipe section (2) that (1) is connected and the mapping of absolute altitude difference with this group on the fixed base of described steel-making converter (3) outside; Then in the vertical direction of described group cover (1) and horizontal outer side, lifting rig (4) is installed respectively; Then described group cover (1) and described fixing petticoat pipe section (2) are successively cut apart from described evaporated flue respectively; Under the cooperation of the hoisting machinery (5) of described steel-making converter (3) outside layout, dismounting is hung subsequently by described lifting rig (4); Last new group's cover (1) and the fixing petticoat pipe section (2) will being used for changing again, the mounting center carried over mapping before and absolute altitude are measuring basis, be installed on described evaporated flue by described lifting rig (4) in the cooperation of described hoisting machinery (5), complete the replacing construction working of a steel-smelting revolving furnace smoke canal
Wherein when fixing petticoat pipe section (2) described in cutting, carry out again after group's cover (1) got off to be cut hangs dismounting.
2. the constructional method for changing steel-smelting revolving furnace smoke canal according to claim 1, it is characterized in that: carry out in advance by following step when adopting lifting rig (4) to coordinate the group described in removing to cover (1) and described fixing petticoat pipe section (2) with described hoisting machinery (5), first by the lifting rig (4) of vertical direction sling cut down group cover (1) or fixing petticoat pipe section (2), then by the lifting rig (4) of horizontal outer side, described group cover (1) or fixing petticoat pipe section (2) are pulled to described hoisting machinery (5) below, the scene of dismounting is hung again by described hoisting machinery (5), complete the dismounting of described group cover (1) and fixing petticoat pipe section (2), sequence of construction when new group's cover (1) installed for changing and fixing petticoat pipe section (2) is contrary.
3. the constructional method for changing steel-smelting revolving furnace smoke canal according to claim 1, is characterized in that: described hoisting machinery (5) is for being arranged on the driving outside described steel-making converter in workshop.
4. the constructional method for changing steel-smelting revolving furnace smoke canal according to claim 3, is characterized in that: described lifting rig (4) is windlass.
5. the constructional method for changing steel-smelting revolving furnace smoke canal according to claim 4, it is characterized in that: the windlass being arranged in described group cover (1) vertical direction is load-carrying windlass, and the layout height of described load-carrying windlass adapts with the mounting height of described driving.
6. the constructional method for changing steel-smelting revolving furnace smoke canal according to claim 4, it is characterized in that: the windlass being arranged in described group cover (1) horizontal outer side is rack winch, and the horizontally disposed distance of described rack winch adapts with that orbit (6) away from described steel-making converter (3) of described driving.
7. the constructional method for changing steel-smelting revolving furnace smoke canal according to claim 6, it is characterized in that: between described rack winch and described steel-making converter (3), be also furnished with traction rope stable turning pulley (7), after first walking around described traction rope stable turning pulley (7) from the traction rope (8) of described rack winch pull-out, then cover (1) with described group or fixing petticoat pipe section (2) is connected.
8. the constructional method for changing steel-smelting revolving furnace smoke canal according to claim 7, it is characterized in that: the mounting height of described traction rope stable turning pulley (7) is not higher than the mounting height of described rack winch, and the mounting height of described rack winch covers the mounting height of (1) lower than described group.
CN201510314092.5A 2015-06-09 2015-06-09 Construction method for replacing steelmaking converter flue CN104846143B (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106015729A (en) * 2016-06-08 2016-10-12 中国十七冶集团有限公司 Reverse in-position method for vaporization flue in closed plant
CN106435087A (en) * 2016-08-29 2017-02-22 中国十七冶集团有限公司 Sectional assembling and mounting method for converter vaporization flue
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
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
CN109022672A (en) * 2018-08-24 2018-12-18 中国二十冶集团有限公司 The installation method of converter evaporation cooling air flue when a kind of 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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Title
王茂伙: "福建三钢1号转炉汽化烟道炉口段拆除更换施工技术", 《南方金属》 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106015729A (en) * 2016-06-08 2016-10-12 中国十七冶集团有限公司 Reverse in-position method for vaporization flue in closed plant
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
CN106435087A (en) * 2016-08-29 2017-02-22 中国十七冶集团有限公司 Sectional assembling and mounting method for converter vaporization flue
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
CN109022672A (en) * 2018-08-24 2018-12-18 中国二十冶集团有限公司 The installation method of converter evaporation cooling air flue when a kind of 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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