CN102703640B - Method of maintenance and lifting for moving section flue at converter mouth - Google Patents

Method of maintenance and lifting for moving section flue at converter mouth Download PDF

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Publication number
CN102703640B
CN102703640B CN201210111947.0A CN201210111947A CN102703640B CN 102703640 B CN102703640 B CN 102703640B CN 201210111947 A CN201210111947 A CN 201210111947A CN 102703640 B CN102703640 B CN 102703640B
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CN
China
Prior art keywords
lifting
fire door
active segment
converter
flue
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Application number
CN201210111947.0A
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Chinese (zh)
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CN102703640A (en
Inventor
朱道付
程玉洲
张俊
周美初
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中国十七冶集团有限公司
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Application filed by 中国十七冶集团有限公司 filed Critical 中国十七冶集团有限公司
Priority to CN201210111947.0A priority Critical patent/CN102703640B/en
Publication of CN102703640A publication Critical patent/CN102703640A/en
Application granted granted Critical
Publication of CN102703640B publication Critical patent/CN102703640B/en

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Abstract

The invention provides a method of maintenance and lifting for a moving section flue at a converter mouth and belongs to the technical field of equipment lifting. The method includes the steps of firstly, setting a lifting pulley set and a pulley set driving and hoisting device; secondly, distributing lifting steel wire ropes and lifting spots; and thirdly, removing a lifting device for the moving section flue at the converter mouth and the mouth moving section flue. A certain movement and lifting space for the mouth moving section flue and a 360-degree rotation function of a converter are fully utilized in normal production of the converter and the mouth moving section flue, the lifting device is set and used reasonably, and accordingly upper parts of the mouth moving section flue can be moved into a converter feeding span with conveying conditions and large conveying space from the space above the converter mouth without removing the upper parts, the range of replacing and maintaining the mouth moving section flue is narrowed greatly. In addition, the method is fast and safe, removing efficiency is improved, maintenance cost is reduced, and maintenance time is reduced.

Description

Hanging method is removed in a kind of converter mouth active segment flue maintenance

Technical field

The invention belongs to equipment hoisting technical field, relate in particular to a kind of converter mouth active segment flue maintenance and remove hanging method.

Background technology

At present, in metallurgical converter steel-making, often can run into need be to its replacing because of the movable evaporated flue production of fire door serious wear situation, but the technique platform in converter region, equipment layout flyover is more, the movable evaporated flue of fire door is arranged in converter and fixedly between flue section, solid space is very compact narrow and small, change conventionally need at that time to remove this flue supports and top fixedly flue section and the part technique platform affecting in hoisting passage and with medium pipeline that fixedly flue section is connected, to allow plug for outlet movable flue remove the passage of hoisting transportation, this usual method defect is: for removing, change fire door movable flue, technique platform and the top flue working face removed are large, dismounting parts are many, not only because dismounting scope extends the repair time greatly, affect owner's plant produced, also can be because removing the maintainer of the large input of working face and using mechanical means to strengthen the input of the engineering cost of overhaul.

Summary of the invention

The object of this invention is to provide a kind of converter mouth active segment flue maintenance and remove hanging method, these hanging method concrete steps are as follows:

(1) lifting tackleblock and tackleblock are set and drive winding plant:

Fire door active segment flue 4 is positioned at directly over converter 3 fire doors, and converter 3 is supported on basis converter 1 by bearing support 2, and converter 3 can be under the support of bearing support 2 360 0rotation, fire door active segment flue 4 is fixed on the supporting seat 6 of fixing flue section 8 by active segment flue lifting device 5; After Converter, on two-layer platform 7, place for driving the driving windlass 13 of 20t tackleblock 15,20t tackleblock 15 is fixed on oxygen rifle landing beam 12, the direct effect that on point of fixity selection assurance 20t tackleblock 15, the haulage cable 14 of lifting hinders without gear, to fire door active segment flue 4, meets the lifting requirements that next step lifts fire door active segment flue 4;

(2) arrange lifting wireline and suspension centre:

One end is fixed on to the lifting wireline 18 on 20t tackleblock 15, be fixedly attached to fire door active segment flue 4 centers, upper back, again the master on lifting main hook 9 on reinforced inter-bank car 11 is lifted to rope 16 and be fixedly attached to fire door active segment flue 4 front upper part centers, then open respectively and drive windlass 13 and driving main hook 9, make to lift wireline 18 and the main rope 16 that lifts in micro-strained condition, for the dismounting of next step lifting device 5 is prepared;

(3) remove fire door active segment flue lifting device:

Lifting wireline 18 and the main rope 16 that lifts hoist respectively, until work the gravity that the lifting device 5 be raised to fire door active segment flue 4 does not bear fire door active segment flue 4, and now the weight of fire door active segment flue 4 is shared jointly by lifting wireline 18 and the main rope 16 that lifts, then remove lifting device 5, remove the fixed constraints state of fire door active segment flue 4;

(4) fire door active segment flue is removed:

Lifting wireline 18 and the main rope 16 that lifts progressively decline, make on the fire door that is placed on converter 3 that fire door active segment flue 4 is vertical, now the weight of fire door active segment flue 4 is respectively by lifting wireline 18, master lifts rope 16 and three strength of converter 3 supports are shared, rotary converter 3, lift wireline 18 and the main rope 16 that lifts according to converter 3 simultaneously, the state of fire door active segment flue 4 rotation and the stressing conditions wireline that declines respectively, meet fire door active segment flue 4 together rotates to converter reinforced across interior with converter 3 under the state that is not subject to large obstruction power, make converter 3 fire doors rotate to 90 0allow the maximum space of plug for outlet active segment flue 4 activities, the lifting auxiliary hook 10 of the reinforced inter-bank car 11 of decline, make pair disposed thereon lift the suspension centre place that rope 17 is connected to fire door active segment flue 4 lifting wireline 18, be attached thereto firmly and the auxiliary hook 10 that hoists makes pair lift rope 17 in strained condition, then the windlass playback of reverse drive tackleblock 15 lifts wireline 18, making the power of this suspension centre transfer to pair lifts on rope 17, removal lifting wireline 18 hoists simultaneously, and pair lifts rope 17 and main lifting restricts 16, upgrade fire door active segment flue 4, mobile driving 11 lifts fire door active segment flue 4 to specified location, complete the dismounting lifting work of fire door active segment flue 4.

Hanging method is removed in a kind of converter mouth active segment flue maintenance provided by the present invention, makes full use of the space and the converter 360 that when converter and fire door active segment flue are normally produced, there are certain fire door active segment flue mobile lifting between the two 0the function of rotation, in conjunction with above 2 conditions again by setting and the utilization of rational tackle gear, realized the converter bay by former narrow space by fire door active segment flue, do not removing under the prerequisite of the movable evaporated flue upper member of fire door, from the top of converter mouth, move to the converter that transport condition and transport space are large reinforced across interior, greatly reduced to change the dismounting scope of this fire door active segment flue maintenance, and fast and safely, improve and remove work efficiency, reduce the cost of overhaul and reduced the repair time.The inventive method arranges rationally, safe and reliable, has effectively improved efficiency and quality that the maintenance of converter mouth active segment flue is removed.

Accompanying drawing explanation

Fig. 1 is the configuration of converter mouth active segment flue and arranges schematic diagram;

Fig. 2 is that converter mouth active segment flue proposed by the invention is removed lifting suspension centre and weight handling equipment is arranged schematic diagram;

Fig. 3 is that converter mouth active segment flue proposed by the invention is removed one of hoisting process schematic diagram;

Fig. 4 is that converter mouth active segment flue proposed by the invention is removed two of hoisting process schematic diagram;

Fig. 5 is that converter mouth active segment flue proposed by the invention is removed three of hoisting process schematic diagram.

In figure: 1, basis converter; 2, bearing support; 3, converter; 4, fire door active segment flue; 5, lifting device; 6, supporting seat; 7, converter rear portion two-layer platform; 8, converter fixed section flue; 9, lifting main hook; 10, lifting auxiliary hook; 11, reinforced inter-bank car; 12, oxygen rifle landing beam; 13, drive windlass; 14, haulage cable; 15,20t tackleblock; 16, the main rope that lifts; 17, pair lifts rope; 18, lifting wireline.

Embodiment

Hanging method is removed in a kind of converter mouth active segment flue maintenance provided by the present invention, and its construction procedure is: 1, lifting tackleblock and tackleblock are set and drive winding plant; 2, arrange lifting wireline and suspension centre; 3, remove fire door active segment flue lifting device; 4, fire door active segment flue is removed.Concrete steps are as follows:

1, lifting tackleblock and tackleblock are set and drive winding plant:

Fire door active segment flue 4 is arranged in directly over converter 3 fire doors, and converter 3, by bearing support 2, is supported on basis converter 1, and converter 3 can be under the support of bearing support 2 360 0rotation.Fire door active segment flue 4, by its lifting device 5, is fixed on fixedly on 1 section of 8 supporting seat 6 of flue.After Converter, on two-layer platform 7, place the driving windlass 13 of 20t tackleblock 15, and 20t tackleblock 15 is fixed on oxygen rifle landing beam 12, meet next step hanging apparatus that lifts fire door active segment flue 4 requirement (seeing accompanying drawing 1) is set.

2, arrange lifting wireline and suspension centre:

One end is fixed on to the lifting wireline 18 on tackleblock 15, is connected to fire door active segment flue 4 centers, upper back, and with its fixation.Again the master on lifting main hook 9 on reinforced inter-bank car 11 is lifted to rope 16 and be fixed on fire door active segment flue 4 front upper part centers, same and its fixation.Converter 3 is rotated to fire door position vertically upward, then open respectively and drive windlass 13 and driving main hook 9, make to lift wireline 18 and the main rope 16 that lifts in micro-strained condition, for next step lifting device 5, remove and prepare.(seeing accompanying drawing 1).

3, remove fire door active segment flue lifting device:

Lifting wireline 18 and the main rope 16 that lifts hoist respectively, until work the gravity that the lifting device 5 be raised to fire door active segment flue 4 does not bear fire door active segment flue 4, and now the weight of fire door active segment flue 4 by lifting wireline 18 and the main rope 16 that lifts is shared jointly.Then remove lifting device 5, removed fire door active segment flue 4 fixed constraints states (seeing accompanying drawing 1,2).

4, fire door active segment flue is removed:

Progressively decline lifting wireline 18 and the main rope 16 that lifts, make on the fire door that is placed on converter 3 that fire door active segment flue 4 is vertical, now the weight of fire door active segment flue 4 respectively by lifting wireline 18, mainly lift rope 16 and converter 3 and support three strength and share.Rotary converter 3, lift wireline 18 and the main rope 16 that lifts according to the states of converter 3,4 rotations of fire door active segment flue and the stressing conditions wireline that declines respectively simultaneously, meet fire door active segment flue 4 together rotates to converter reinforced across direction with converter 3 under the state that is not subject to large obstruction power, and progressively strengthen converter 3 and select gyration, until fire door rotates to 90 0allow the maximum space of plug for outlet active segment flue 4 activities.(seeing accompanying drawing 2,3).

The lifting auxiliary hook 10 of the reinforced inter-bank car 11 of decline, make pair disposed thereon lift the suspension centre place that rope 17 is connected to fire door active segment flue 4 lifting wireline 18, be attached thereto firmly and the auxiliary hook 10 that hoists makes pair lift rope 17 in strained condition, then the windlass playback of reverse drive tackleblock 15 lifts wireline 18, making the power of this suspension centre transfer to pair lifts on rope 17, removal lifting wireline 18, the pair that simultaneously hoists lifts rope 17 and the main rope 16 that lifts, upgrade fire door active segment flue 4, then mobile lifting auxiliary hook 10 and lifting main hook 9 move to spacious position between reinforced span centre by fire door active segment flue 4 simultaneously, mobile driving 11 lifts fire door active segment flue 4 to specified location again, realize the dismounting lifting work of fire door active segment flue 4.(seeing accompanying drawing 3,4,5)

At certain steelworks 60t converter evaporation cooling air flue, remove to change and adopt present method construction, dismounting amount in flue region is very little, whole dismounting hoisting process operation implementation procedure is smooth, make the original fire door movable flue dismounting replacing time advance to 3 days by former 5 days, implementation result is very obvious, has reduced because removing parts scope compared with the impact greatly production restoration being delayed.Certain steelworks, successively 2 100t converter evaporation cooling air flues are removed to change and are adopted equally present method construction, and effect is fairly obvious, and dismounting efficiency is high, product protection good.

Claims (1)

1. a hanging method is removed in the maintenance of converter mouth active segment flue, it is characterized in that these hanging method concrete steps are as follows:
(1) lifting tackleblock and tackleblock are set and drive winding plant:
fire door active segment flue (4) is positioned at directly over converter (3) fire door, and it is upper that converter (3) is supported in basis converter (1) by bearing support (2), and converter (3) can be under the support of bearing support (2) 360° rotation, fire door active segment flue (4) is fixed on the supporting seat (6) of fixing flue section (8) by active segment flue lifting device (5); The upper driving windlass (13) that is used for driving 20t tackleblock (15) of placing of two-layer platform after Converter (7), 20t tackleblock (15) is fixed on oxygen rifle landing beam (12), point of fixity selects to guarantee that the haulage cable (14) of the upper lifting of 20t tackleblock (15) is upper to fire door active segment flue (4) without keeping off the direct effect hindering, and meets the lifting requirements that next step lifts fire door active segment flue (4);
(2) arrange lifting wireline and suspension centre:
one end is fixed on to the lifting wireline (18) on 20t tackleblock (15), be fixedly attached to fire door active segment flue (4) center, upper back, again the master on the upper lifting main hook (9) of the inter-bank car (11) that feeds in raw material is lifted to rope (16) and be fixedly attached to fire door active segment flue (4) front upper part center, then open respectively and drive windlass (13) and driving main hook (9), make to lift wireline (18) and main lift rope (16) in micro-strained condition, for the dismounting of next step lifting device (5) is prepared;
(3) remove fire door active segment flue lifting device:
lifting wireline (18) and the main rope (16) that lifts hoist respectively, until work the gravity that the lifting device (5) be raised to fire door active segment flue (4) does not bear fire door active segment flue (4), and now the weight of fire door active segment flue (4) by lifting wireline (18) and main lift rope (16) and jointly share, then remove lifting device (5), remove the fixed constraints state of fire door active segment flue (4);
(4) fire door active segment flue is removed:
lifting wireline (18) and the main rope (16) that lifts progressively decline, make on the fire door that is placed on converter (3) that fire door active segment flue (4) is vertical, now the weight of fire door active segment flue (4) is respectively by lifting wireline (18), master lifts rope (16) and three strength of converter (3) support are shared, rotary converter (3), lift wireline (18) simultaneously and lead and lift rope (16) according to converter (3), the state of fire door active segment flue (4) rotation and the stressing conditions wireline that declines respectively, meet fire door active segment flue (4) together rotates to converter reinforced across interior with converter (3) under the state that is not subject to large obstruction power, make converter (3) fire door rotate to 90° allow the movable maximum space of plug for outlet active segment flue (4), the lifting auxiliary hook (10) of the reinforced inter-bank car (11) of decline, make pair disposed thereon lift the suspension centre place that rope (17) is connected to fire door active segment flue (4) lifting wireline (18), be attached thereto firmly and the auxiliary hook that hoists (10) makes pair lift rope (17) in strained condition, then the windlass playback of reverse drive tackleblock (15) lifts wireline (18), making the power of this suspension centre transfer to pair lifts on rope (17), removal lifting wireline (18), the pair that simultaneously hoists lifts rope (17) and the main rope (16) that lifts, upgrade fire door active segment flue (4), reinforced inter-bank car (11) lifts fire door active segment flue (4) to specified location, complete the dismounting lifting work of fire door active segment flue (4).
CN201210111947.0A 2012-04-17 2012-04-17 Method of maintenance and lifting for moving section flue at converter mouth CN102703640B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210111947.0A CN102703640B (en) 2012-04-17 2012-04-17 Method of maintenance and lifting for moving section flue at converter mouth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210111947.0A CN102703640B (en) 2012-04-17 2012-04-17 Method of maintenance and lifting for moving section flue at converter mouth

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CN102703640B true CN102703640B (en) 2014-03-19

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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103805738A (en) * 2012-11-06 2014-05-21 西林钢铁集团有限公司 Method for efficiently dismounting furnace mouth of converter
CN104418240B (en) * 2013-08-27 2016-06-22 中国五冶集团有限公司 The lifting of a kind of flue and group are to method
CN105986057B (en) * 2015-01-29 2017-10-20 江苏永钢集团有限公司 A kind of gasification cooling flue heat pipe replacing options
CN104846143B (en) * 2015-06-09 2017-03-22 中国十九冶集团有限公司 Construction method for replacing steelmaking converter flue
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
CN108946470B (en) * 2018-07-09 2019-11-15 莱芜钢铁集团有限公司 A kind of replacing options for converter entirety flue
CN108728605B (en) * 2018-08-20 2020-05-05 攀钢集团工程技术有限公司 Converter trunnion ring replacing method
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

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CN101812564A (en) * 2010-04-27 2010-08-25 武汉一冶机电工程有限责任公司 Method for installing converter in plug-in mode

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CN101812564A (en) * 2010-04-27 2010-08-25 武汉一冶机电工程有限责任公司 Method for installing converter in plug-in mode

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