CN103602769A - Construction method for translation and replacement of blast furnace top air-tight box device - Google Patents
Construction method for translation and replacement of blast furnace top air-tight box device Download PDFInfo
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- CN103602769A CN103602769A CN201310612944.XA CN201310612944A CN103602769A CN 103602769 A CN103602769 A CN 103602769A CN 201310612944 A CN201310612944 A CN 201310612944A CN 103602769 A CN103602769 A CN 103602769A
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Abstract
The invention relates to a construction method for translation and replacement of a blast furnace top air-tight box device, and belongs to the technical field of construction of blast furnaces. The construction method comprises the following steps: manufacturing two translation girders, dismantling a material distribution chute, a connecting bolt of an air-tight box, a connecting pipe and an upper pup joint after shutdown of the blast furnace, heightening the air-tight box by about 1m by using four 20-ton chain blocks, penetrating the two translation girders, passing the center of the blast furnace by 2m, coating butter on tracks of the translation girders, placing the air-tight box on the girders, arranging one set of power device of a hoisting machine on an eight-angle platform, translating out the air-tight box by utilizing traction force of the hoisting machine, and moving the air-tight box to the position to which a furnace top crown block can be hoisted; when the new air-tight box is mounted, the direction which is opposite to that of a pulley block arranged in dismantling is used, and then the new air-tight box can be translated to the place. The construction method has the advantages of playing a great role in protecting an interface of an upper flange and a lower flange, solving the difficult problem that the air-tight box can not be directly dismantled by the furnace top crown block, performing replacement by utilizing a translation technology and avoiding the phenomenon of pulling by force; and facilities are simple, safe and high-efficient.
Description
Technical field
The invention belongs to blast furnace technical field of construction, particularly a kind of constructional method of sliding and replacing blast furnace roof airtight box equipment, is applicable to for the construction of blast furnace maintenance airtight box quick-replaceable, and narrow space, cannot vertical lifting etc. construction.
Background technology
Blast furnace top equipment airtight box, it is one of blast furnace top equipment important component part, it plays the sealing function of blast furnace ironmaking feeding system, owing to being subject to for a long time the impact of furnace high-temperature, high pressure, the tightness of airtight box is easy to be affected, when serious, affect blast furnace and produce, so just need to complete at short notice dismounting, the installation work of airtight box.
The about 40T of blast furnace top equipment airtight box gross weight, 3.6 meters of diameters, high 2.5 meters, it is positioned at (approximately 40 meters of positions) on blast furnace hole steel ring, furnace roof overhead traveling crane can not directly be sling it, and the dismounting of airtight box, installation work are generally to carry out during blast furnace maintenance, how airtight box dismounting, installation work is completed smoothly, and to try one's best the time more than more piece for other operations, the problem that present technique need to solve just.
Because airtight box tonnage is heavy, volume is large, especially upper and lower flange-interface place will protect, and furnace roof overhead traveling crane can not directly hang installation site again.We have adopted the mode of airtight box translation to complete its dismounting, installation work, with windlass, tackleblock, translation crossbeam, airtight box are moved to fire door center, just can solve the difficult problem that cannot use the lifting of furnace roof overhead traveling crane.Its facility is simple, safety, efficiently, do not damage existing equipment, is a kind of best operating technique of replacing.
Summary of the invention
The object of the present invention is to provide a kind of constructional method of sliding and replacing blast furnace roof airtight box equipment; especially upper and lower flange-interface place plays a very good protection; having solved furnace roof overhead traveling crane can not directly remove a difficult problem is installed airtight box; utilize translation technology to change; avoided the phenomenon of stretching the meaning; its facility is simple, safety, efficient, is a kind of best operating technique of replacing.
Construction procedure of the present invention is as follows:
(1) making of translation crossbeam:
(2) remove airtight box appurtenances:
Remove airtight box parts and comprise top sub, flange bolt, the various pipelines of connection, distributor chute, during dismounting, each interface will protect;
(3) translation facility is set:
The most important link of airtight box translation, translation facility is set exactly, it is the technological core of integral translation, being the key that realizes translation airtight box, is the center of whole construction process, the installation of translation crossbeam, to carry out in anistree position of platform, extended to fire door place, the good channel-section steel of translation crossbeam bottom pad, backing plate (for levelling), and be welded and fixed; In the middle of two crossbeams, with channel-section steel, carry out lateral brace; The setting of translation hoisting facilities, arranges one, windlass, goes out door guide roller, leading sheave, tackleblock; Old airtight box is put on translation crossbeam, and has been tied wireline, above the crossbeam of translation simultaneously, coat butter;
(4) airtight box translation:
Start windlass, old airtight box is shifted out slowly, move on to the position that furnace roof overhead traveling crane can lift, it is hung out from translation crossbeam, in translation process, notice that the wireline of tackleblock, guide deflection sheave has or not fast knot phenomenon, note the variation of the tightening force of fast line simultaneously; Utilize furnace roof overhead traveling crane to put it on translation crossbeam 2 new airtight box 7, reset tackleblock 5 reverse, shift-in is with to shift out process identical; New airtight box 7 is moved on to furnace roof center, with 4 20 tons of jacks, played, extract translation crossbeam 1 out, new airtight box 7 is put into fire door place slowly, just complete more changing jobs of airtight box.
The invention has the advantages that: other construction operation, without any impact, guaranteeing to have accelerated construction speed on safe basis, has been improved to working efficiency, and solution cannot be used a difficult problem for furnace roof overhead traveling crane lifting; Adopt present technique, solved a difficult problem for airtight box finished product protection, improved setting accuracy, in the progress of assurance, guaranteed construction quality; This technology less investment, easy to operate, durable.
Accompanying drawing explanation
Fig. 1 is that old airtight box is removed translation schematic diagram.Wherein, translation crossbeam 1, windlass 2, go out door guide roller 3, leading sheave 4, tackleblock 5, old airtight box 6.
The new airtight box of Fig. 2 is installed translation schematic diagram.Wherein, new airtight box 7, tackleblock 5 Opposite direction connections.
Specific implementation method
Below in conjunction with embodiment of the present invention is described shown in specific implementation method and figure:
1, the making of translation crossbeam
2, remove airtight box appurtenances
Remove airtight box parts and comprise top sub, flange bolt, the various pipelines of connection, distributor chute, during dismounting, each interface will protect.
3, translation facility is set
The most important link of airtight box translation, translation facility is set exactly, it is the technological core of integral translation, being the key that realizes translation airtight box, is the center of whole construction process, the installation of translation crossbeam, to carry out in anistree position of platform, extended to fire door place, the good channel-section steel of translation crossbeam bottom pad, backing plate (for levelling), and be welded and fixed; In the middle of two crossbeams, with channel-section steel, carry out lateral brace; The setting of translation hoisting facilities, arranges 2 one, windlass, goes out door guide roller 3, leading sheave 4, tackleblock 5; Old airtight box 6 is put on translation crossbeam 1, and has been tied wireline, above the crossbeam of translation simultaneously, coat butter.
4, airtight box translation
Start windlass, old airtight box is shifted out slowly, move on to the position that furnace roof overhead traveling crane can lift, it is hung out from translation crossbeam, in translation process, notice that the wireline of tackleblock, guide deflection sheave has or not fast knot phenomenon, note the variation of the tightening force of fast line simultaneously; Utilize furnace roof overhead traveling crane to put it on translation crossbeam 1 new airtight box 7, reset tackleblock 5(reverse), shift-in is with to shift out process identical; New airtight box 7 is moved on to furnace roof center, with 4 20 tons of jacks, played, extract translation crossbeam 1 out, new airtight box 7 is put into fire door place slowly, just complete more changing jobs of airtight box.
Claims (1)
1. a constructional method for sliding and replacing blast furnace roof airtight box equipment, is characterized in that, construction procedure is:
1) making of translation crossbeam:
Translation crossbeam (1) is formed by joist steel and track welding, i.e. joist steel top flange plate welded rails, and translation crossbeam is the principal facility of airtight box in translation process, is that airtight box makes its translation in the above in the upper form that reduces friction of utilizing of translation crossbeam (1);
2) remove airtight box appurtenances:
Remove airtight box parts and comprise top sub, flange bolt, the various pipelines of connection, distributor chute, during dismounting, each interface will protect;
3) translation facility is set:
The most important link of airtight box translation, translation facility is set exactly, it is the technological core of integral translation, being the key that realizes translation airtight box, is the center of whole construction process, the installation of translation crossbeam, to carry out in anistree position of platform, extended to fire door place, the good channel-section steel of translation crossbeam bottom pad, backing plate (for levelling), and be welded and fixed; In the middle of two crossbeams, with channel-section steel, carry out lateral brace; The setting of translation hoisting facilities, arranges (2) one, windlass, goes out door guide roller (3), leading sheave (4), tackleblock (5); Old airtight box (6) is put into translation crossbeam (1) upper, and has been tied wireline, above the crossbeam of translation simultaneously, coat butter;
4) airtight box translation:
Start windlass, old airtight box is shifted out slowly, move on to the position that furnace roof overhead traveling crane can lift, it is hung out from translation crossbeam, in translation process, notice that the wireline of tackleblock, guide deflection sheave has or not fast knot phenomenon, note the variation of the tightening force of fast line simultaneously; Utilize furnace roof overhead traveling crane to put it to translation crossbeam (2) new airtight box (7) upper, reset tackleblock (5) reverse, shift-in is with to shift out process identical; New airtight box (7) is moved on to furnace roof center, with 4 20 tons of jacks, played, extract translation crossbeam (1) out, new airtight box (7) is put into fire door place slowly, just complete more changing jobs of airtight box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310612944.XA CN103602769A (en) | 2013-11-27 | 2013-11-27 | Construction method for translation and replacement of blast furnace top air-tight box device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310612944.XA CN103602769A (en) | 2013-11-27 | 2013-11-27 | Construction method for translation and replacement of blast furnace top air-tight box device |
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| CN103602769A true CN103602769A (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310612944.XA Pending CN103602769A (en) | 2013-11-27 | 2013-11-27 | Construction method for translation and replacement of blast furnace top air-tight box device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316449A (en) * | 2014-07-29 | 2016-02-10 | 宝山钢铁股份有限公司 | Method for lifting integrated petticoat and water seal cylinder of converter |
| CN105483302A (en) * | 2015-12-04 | 2016-04-13 | 中国一冶集团有限公司 | Installing construction method for large blast furnace top valve box |
| CN113441923A (en) * | 2021-06-18 | 2021-09-28 | 中天钢铁集团有限公司 | Quick dismounting device of dephosphorization machine |
| CN115386670A (en) * | 2022-08-26 | 2022-11-25 | 北京首钢股份有限公司 | Blast furnace blow-off valve replacing device and replacing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202157076U (en) * | 2011-06-17 | 2012-03-07 | 南京梅山冶金发展有限公司 | Trolley special for replacing air tight box of blast furnace |
| CN203143964U (en) * | 2013-01-02 | 2013-08-21 | 河北钢铁股份有限公司承德分公司 | Device for quickly changing blast furnace air-tight box |
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2013
- 2013-11-27 CN CN201310612944.XA patent/CN103602769A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202157076U (en) * | 2011-06-17 | 2012-03-07 | 南京梅山冶金发展有限公司 | Trolley special for replacing air tight box of blast furnace |
| CN203143964U (en) * | 2013-01-02 | 2013-08-21 | 河北钢铁股份有限公司承德分公司 | Device for quickly changing blast furnace air-tight box |
Non-Patent Citations (2)
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| 王裕博等: "高炉本体炉顶设备更换", 《科技与生活》 * |
| 高志刚等: "5#高炉气密箱更换方案的优化选取", 《邯钢科技》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316449A (en) * | 2014-07-29 | 2016-02-10 | 宝山钢铁股份有限公司 | Method for lifting integrated petticoat and water seal cylinder of converter |
| CN105483302A (en) * | 2015-12-04 | 2016-04-13 | 中国一冶集团有限公司 | Installing construction method for large blast furnace top valve box |
| CN113441923A (en) * | 2021-06-18 | 2021-09-28 | 中天钢铁集团有限公司 | Quick dismounting device of dephosphorization machine |
| CN115386670A (en) * | 2022-08-26 | 2022-11-25 | 北京首钢股份有限公司 | Blast furnace blow-off valve replacing device and replacing method thereof |
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Application publication date: 20140226 |