CN104295077A - Annular hanging platform for mounting stove shell of hot-blast stove, and mounting and dismounting method thereof - Google Patents
Annular hanging platform for mounting stove shell of hot-blast stove, and mounting and dismounting method thereof Download PDFInfo
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- CN104295077A CN104295077A CN201310299072.6A CN201310299072A CN104295077A CN 104295077 A CN104295077 A CN 104295077A CN 201310299072 A CN201310299072 A CN 201310299072A CN 104295077 A CN104295077 A CN 104295077A
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Abstract
The invention discloses an annular hanging platform for mounting a stove shell of a hot-blast stove. The annular hanging platform comprises a first belt stove shell (1), a second belt stove shell (3), hanging lugs (4), tripods (5), a railing (6), a safety net (7), a steel jumping plate (8) and a steel ladder stand (9), and is characterized in that the first belt stove shell (1) and the second belt stove shell (3) are annular stove shells spliced by multiple circular arc steel plates and having the same diameter; the hanging lugs (4) are produced by steel plates, shaped like circular arc omegas and fixedly welded on the outer walls of the annular stove shells along the peripheries of the annular stove shells; the tripods (5) are right triangle brackets made of angle steels; the steel jumping plate (8) is laid on the adjacent two tripods (5); and the steel ladder stand (9) is formed by welding steps (10) between two parallel longitudinal beams (11). The annular hanging platform has the advantages of simple structure, easy machining, convenience for mounting and dismounting, repeated use, quickened construction progress and shortened construction period.
Description
Technical field
The present invention relates to a kind of the install of hot-air furnace platform, specifically, be a kind of for hot-air stove shell install annular hanging type platform and installation, method for dismounting.
Background technology
Along with China's rapid development of economy, blast furnace technology progress is very fast, provides with it the hot-blast stove of thermal source to maximization, variation, high efficiency future development.In hot-air stove shell installation process, need the from bottom to top assembled of ring by ring, now need erection construction operating platform.Conventional operation platform has full hall scaffold platform and hangs chain table two kinds.From level to level full hall scaffold platform from bottom to top sets up, and adopts and construct in this way, needs to use a large amount of materials, and cost is higher, and affects construction speed; Hang chain table and be in work high above the ground when installation and removal, there is certain safety problem.
Therefore known full hall scaffold platform and hang chain table and there is above-mentioned all inconvenience and problem.
Summary of the invention
Object of the present invention, is to propose a kind of structure simple, easy accessibility, can have enough to meet the need use, cost low and can ensure the annular hanging type platform for hot-air stove shell installation of furnace shell installation quality.
Another object of the present invention, is to propose a kind of structure simple, easy accessibility, can have enough to meet the need use, cost low and can ensure the mounting method of the annular hanging type platform for hot-air stove shell installation of furnace shell installation quality.
Another object of the present invention, is to propose a kind of structure simple, easy accessibility, can have enough to meet the need use, cost low and can ensure the method for dismounting of the annular hanging type platform for hot-air stove shell installation of furnace shell installation quality.
For achieving the above object, technical solution of the present invention is:
For the annular hanging type platform that hot-air stove shell is installed, comprise the first band furnace shell, the second band furnace shell, hangers, tripod, railing, safety net, steel springboard and steel cat ladder, it is characterized in that:
Described first band furnace shell and the second band furnace shell are the annular furnace shell of the same diameter become by some pieces of arc-shaped steel plate splicings respectively;
Described hangers is made by steel plate, the Ω shape in arc-shaped, and annularly furnace shell circumference soldering is fixed on annular furnace shell outer wall, and it is 1 ~ 1.2m that hangers is with furnace shell suitable for reading apart from first, and between hangers, circumferential distance is 1.5m ~ 2m;
Described tripod is the right-angled triangle support be made into by angle steel, bends to hook after angle steel is removed on end limit, one right angle, and described hook inserts in hangers; Establish a leg in the lower end of tripod, described leg is welded on the first band furnace shell; Vertically weld round steel railing at the other end of tripod, railing upper end welding S-hook, hook hangs with safety net; Tripod is along the first band furnace shell circumference, and between tripod, circumferential distance is 1.5m ~ 2m;
Described steel springboard is laid on above adjacent two tripods, two ends with iron wire colligation on tripod;
Described steel cat ladder is marked time formed by welding between two parallel longitudinal direction beams, and weld between two parallel longitudinal direction beams, be provided with that band steel makes caged protect cage; Described steel cat ladder is arranged between two tripods, and the upper and lower side being fixed by welding in four fixtures on hot-air stove shell and two parallel longitudinal direction beams is welded and fixed.
Annular hanging type platform for hot-air stove shell installation of the present invention can also be further achieved by the following technical measures.
The aforesaid annular hanging type platform installed for hot-air stove shell, wherein said tripod makes of channel-section steel or i iron.
The aforesaid annular hanging type platform installed for hot-air stove shell, wherein said hangers is weldingly fixed on annular furnace shell inwall, tripod, along the first band furnace shell inwall circumference, coordinates railing, safety net, steel springboard and steel cat ladder to arrange annular hanging type platform on annular furnace shell inwall.
The aforesaid annular hanging type platform installed for hot-air stove shell, wherein said hangers is weldingly fixed on annular furnace shell outer wall and inwall simultaneously, tripod, along the first band furnace shell outer wall and inwall circumference, coordinates railing, safety net, steel springboard and steel cat ladder to arrange annular hanging type platform on annular furnace shell outer wall and inwall.
For a mounting method for the annular hanging type platform that hot-air stove shell is installed, it is characterized in that comprising the following steps:
A, the first band furnace shell are after ground assembly welding completes, and be fixed on furnace shell outer wall by prefabricated hangers along furnace shell circumference soldering, it is 1 ~ 1.2m that hangers is with furnace shell suitable for reading apart from first, and between hangers, circumferential distance is 1.5m ~ 2m;
B, the hook of prefabricated tripod to be inserted in hangers, along the first band furnace shell circumference, spacing 1.5m, and lower end leg is weldingly fixed on furnace shell;
C, on adjacent two tripods, lay steel springboard, its end and tripod firm with iron wire colligation, and safety net is hung on the hook of railing, fastens with iron wire;
D, between two tripods, hang prefabricated steel cat ladder, weld four fixtures according to the length of steel cat ladder and width at the first band furnace shell, and make the upper and lower side of fixture and prefabricated steel cat ladder two parallel longitudinal direction beams be weldingly fixed on furnace shell outer wall;
E, with crane by first band furnace shell winch to installation in place on furnace bottom basis together with the ring-shaped platform made through step a ~ d;
After f, the adjustment in place of the first band furnace shell complete, repeat above-mentioned steps a ~ d, ring-shaped platform is hung on the second band furnace shell;
G, with crane, the second band furnace shell is winched to installation in place on the first band furnace shell together with the ring-shaped platform made, do upper the next docking by weld seam;
H, repetition above-mentioned steps e ~ g continue installation the 3rd and are with furnace shell, are linked with ring-shaped platform, until furnace roof.
For a method for dismounting for the annular hanging type platform that hot-air stove shell is installed, it is characterized in that comprising the following steps:
A, operating personnel stand in go up most on the annular hanging type platform of a band and remove safety net and steel springboard;
B, to be with at next and annular hanging type platform to set up the supreme annular hanging type platform bottom of band of bamboo cat ladder, operating personnel stands in leg bamboo cat ladder slicing off the annular hanging type platform tripod of a upper band with gas cutting, and with wire rope, tripod is tied down, with crane, tripod is winched to ground from hangers taking-up, remove and along the circumferential direction carry out successively;
C, with wire rope, steel cat ladder top to be tied down, operating personnel stands in next and is with and annular hanging type platform sets up the supreme annular hanging type platform bottom of band of bamboo cat ladder, operating personnel stands in four fixed connecting pieces bamboo cat ladder slicing off steel cat ladder with gas cutting, with crane, steel cat ladder is winched to ground, from top to bottom while dismounting same layer ring-shaped platform tripod, steel cat ladder is removed, remove the whole annular hanging type platform installed for hot-air stove shell until complete.
Adopt after technique scheme, the annular hanging type platform installed for hot-air stove shell of the present invention and installation, method for dismounting have the following advantages:
1, structure is simple, is easy to processing and fabricating;
2, install, remove conveniently, can use be had enough to meet the need, compared with full hall scaffold, cost-saved;
3, save and set up the full hall scaffold time, accelerate construction speed, the reduction of erection time;
4, guarantee the life security of operating personnel, facilitate the raising of construction quality.
Accompanying drawing explanation
Fig. 1 is the ring-shaped platform elevation of the embodiment of the present invention;
Fig. 2 is the hanger structure schematic diagram of the embodiment of the present invention;
Fig. 3 is the ring-shaped platform plan view of the embodiment of the present invention;
Fig. 4 is the steel cat ladder elevation of the embodiment of the present invention;
Fig. 5 is the steel cat ladder side view of the embodiment of the present invention;
Fig. 6 is the A-A sectional view in Fig. 5;
Fig. 7 is the elevational schematic view of the annular hanging type platform simultaneously installed on the inside and outside wall of hot-air stove shell of the embodiment of the present invention;
Fig. 8 is the annular hanging type platform floor map of simultaneously installing on the inside and outside wall of hot-air stove shell of the embodiment of the present invention.
In figure: 1 first band furnace shell, 2 weld seams, 3 second band furnace shells, 4 hangers, 5 tripods, 6 railings, 7 safety nets, 8 steel springboards, 9 steel cat ladders, 10 steel cat ladders are marked time, 11 steel cat ladder longitudinal beams, and 12 steel cat ladder fixtures, 13 protect cage, 14 band steels.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is illustrated further.
Embodiment 1
A kind of annular hanging type platform installed for hot-air stove shell
Now refer to Fig. 1 ~ Fig. 3, Fig. 1 is the ring-shaped platform elevation of the embodiment of the present invention, and Fig. 2 is the hanger structure schematic diagram of the embodiment of the present invention, and Fig. 3 is the ring-shaped platform plan view of the embodiment of the present invention.As shown in the figure, the hangers 4 of the annular hanging type platform that described hot-air stove shell is installed is made by steel plate, Ω shape in arc-shaped, its long 200mm, wide 80mm, thick 6mm, annularly furnace shell circumference soldering is fixed on annular furnace shell outer wall, hangers is suitable for reading apart from the first band furnace shell is 1.2m, and between hangers, circumferential distance is 1.5m.
Described tripod 5 is made by ∠ 50 × 5mm angle steel, wide 1m, high 0.55m, and its front end bends to hook after removing angle steel, long 90mm, a leg is established in lower end, is made by ∠ 50 × 5mm angle steel, long 60mm, tripod 5 hangs on hangers, and lower end leg is welded on the first band furnace shell 1; At the other end welding railing 6 of tripod 5, railing vertical rod is φ 16mm round steel, vertical rod height 1.2m, hoop railing φ 12mm round steel makes, the long S-hook of vertical interval 300mm, railing upper end welding 160mm, safety net 7 hangs on S-hook, tripod 5 is with furnace shell 1 circumference along first, spacing 1.5m.
Described steel springboard 8 is laid on above tripod 5, two ends with iron wire colligation on the crossbeam of tripod 5.
Fig. 4 is the steel cat ladder elevation of the embodiment of the present invention, and Fig. 5 is the steel cat ladder side view of the embodiment of the present invention, and Fig. 6 is the A-A sectional view in Fig. 5.Described steel cat ladder 9 every section high 3m, wide 0.5m, by marking time 10, longitudinal beam 11, fixture 12, protects cage 13 and forms; Mark time 10 long 480mm, makes of φ 16mm round steel, and longitudinal beam 11 ∠ 50 × 5mm angle steel makes, long 3m, every section of cat ladder totally two; Connector 12 ∠ 50 × 5mm angle steel makes, long 200mm, and every section of steel cat ladder totally 4, is weldingly fixed on the first band furnace shell 1, protects the thick band steel of cage 13 30mm and be made into caged, diameter 500mm, profound high 800mm; Hoop band steel spacing 500mm, stands to band steel spacing 400mm; Protect cage 13 to be weldingly fixed on two longitudinal beams 11.
Annular hanging type platform structure for hot-air stove shell installation of the present invention is simple, is easy to processing and fabricating, guarantees the life security of operating personnel, facilitates the raising of construction quality.
Embodiment 2
A kind of mounting method of the annular hanging type platform installed on hot-air stove shell outer wall
A mounting method for the annular hanging type platform installed on hot-air stove shell outer wall, is characterized in that comprising the following steps:
Prefabricated hangers 4, after ground assembly welding completes, is fixed on furnace shell outer wall along furnace shell circumference soldering by a, the first band furnace shell 1, and hangers is suitable for reading apart from the first band furnace shell 1 is 1.2m, hangers circumferential distance 1.5m.
B, the hook of prefabricated tripod 5 to be inserted in hangers 4, along the first band furnace shell 1 circumference, spacing 1.5m, and lower end leg is weldingly fixed on furnace shell.
C, on adjacent two tripods 5, lay steel springboard 8, its end and tripod 5 with iron wire colligation firmly, and safety net 7 to be hung on railing 6, fastens with iron wire.
D, between two tripods, hang prefabricated steel cat ladder 9, the length of foundation steel cat ladder 9 and width weld four fixtures 12 at the first band furnace shell 1, and making fixture 12 be weldingly fixed on furnace shell outer wall with the upper and lower side of prefabricated steel cat ladder 9 two parallel longitudinal direction beams 11, operating personnel is by the upper and lower ring-shaped platform of steel cat ladder;
E, with crane by first band furnace shell 1 winch to installation in place on furnace bottom basis together with the ring-shaped platform made through step a ~ d;
After f, the adjustment in place of the first band furnace shell 1 complete, repeat above-mentioned steps a ~ d, ring-shaped platform is hung on the second band furnace shell 3;
G, with 50 tons of cranes by second band furnace shell 3 winch to installation in place on the first band furnace shell 1 together with the ring-shaped platform made, by weld seam 2 do upper bottom docking;
H, repetition above-mentioned steps e ~ g continue installation the 3rd and are with furnace shell, and are with furnace shell to N, continue to be linked with ring-shaped platform, until furnace roof.
The mounting method of the annular hanging type platform for hot-air stove shell installation of the present invention has easy for installation, compared with full hall scaffold, cost-saved, saves and sets up the full hall scaffold time, accelerate construction speed, the reduction of erection time.
Embodiment 3
A kind of mounting method of the annular hanging type platform installed on hot-air stove shell inwall
The present embodiment removes described hangers 4 and is weldingly fixed on annular furnace shell inwall, tripod 5 is along the first band furnace shell 1 inwall circumference, coordinate railing 6, safety net 7, steel springboard 8 and steel cat ladder 9 to arrange outside annular hanging type platform on annular furnace shell inwall, all the other are with embodiment 2.
Embodiment 4
A kind of mounting method of the annular hanging type platform simultaneously installed on the inside and outside wall of hot-air stove shell
Now refer to Fig. 7 and Fig. 8, Fig. 7 is the elevational schematic view of the annular hanging type platform simultaneously installed on the inside and outside wall of hot-air stove shell of the embodiment of the present invention, and Fig. 8 is the annular hanging type platform floor map of simultaneously installing on the inside and outside wall of hot-air stove shell of the embodiment of the present invention.
In a kind of particular/special requirement design, such as when hot-air stove shell design needs two-sided welding, simultaneously at furnace shell both sides welding hangers 4, tripod 5 is along the first band furnace shell 1 inwall circumference, coordinate railing 6, safety net 7, steel springboard 8 and steel cat ladder 9 to arrange annular hanging type platform on the inside and outside wall of annular furnace shell, operating personnel can enter in hot-air stove shell from the pipe joint that the first band furnace shell 1 is reserved and construct.The present embodiment is except requiring that position that hangers 4 and tripod 5 are arranged on the inside and outside wall of furnace shell must except symmetry, and all the other are with embodiment 2 and 3.
Embodiment 5
A kind of method for dismounting of the annular hanging type platform for hot-air stove shell installation
The present embodiment mainly illustrates the method for dismounting of annular hanging type platform, comprises the following steps:
A, operating personnel stand in go up most on the annular hanging type platform of a band and remove safety net 7, steel springboard 8.
B, to be with at next and annular hanging type platform to set up the supreme annular hanging type platform bottom of band of bamboo cat ladder, operating personnel stands in leg bamboo cat ladder slicing off the annular hanging type platform tripod 5 of a upper band with gas cutting, and with wire rope, tripod 5 is tied down, with 20 tons of cranes, tripod is winched to ground from hangers 4 taking-up, remove and along the circumferential direction carry out successively.
C, with wire rope, steel cat ladder 9 top to be tied down, operating personnel stands in next and is with and annular hanging type platform sets up the supreme annular hanging type platform bottom of band of bamboo cat ladder, operating personnel stands in four fixed connecting pieces 12 bamboo cat ladder slicing off steel cat ladder with gas cutting, with 20 tons of cranes, steel cat ladder 9 is winched to ground, the like, from top to bottom while dismounting ring-shaped platform, steel cat ladder is removed.
The method for dismounting of the annular hanging type platform for hot-air stove shell installation of the present invention has removes feature easily, and the shape hanging type platform removed can have enough to meet the need use, after being with furnace shell installation when first, remove annular hanging type platform and be arranged on turnover on the 3rd band furnace shell and use, can engineering cost be saved.
The present invention has substantive distinguishing features and significant technological progress, and the annular hanging type platform installed for hot-air stove shell of the present invention and installation, method for dismounting have to save sets up the full hall scaffold time, accelerates construction speed, the advantage of reduction of erection time.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or change.Therefore, all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (6)
1. the annular hanging type platform installed for hot-air stove shell, comprise the first band furnace shell (1), the second band furnace shell (3), hangers (4), tripod (5), railing (6), safety net (7), steel springboard (8) and steel cat ladder (9), it is characterized in that:
Described first band furnace shell (1) and the second band furnace shell (3) are the annular furnace shell of the same diameter become by some pieces of arc-shaped steel plate splicings respectively;
Described hangers (4) is made by steel plate, the Ω shape in arc-shaped, and annularly furnace shell circumference soldering is fixed on annular furnace shell outer wall, and hangers is suitable for reading apart from the first band furnace shell (1) is 1 ~ 1.2m, and between hangers, circumferential distance is 1.5m ~ 2m;
Described tripod (5) is the right-angled triangle support be made into by angle steel, bends to hook after angle steel is removed on end limit, one right angle, and described hook inserts in hangers (4); Establish a leg in the lower end of tripod (5), described leg is welded on the first band furnace shell (1); Vertically weld round steel railing (6) at the other end of tripod (5), railing upper end welding S-hook, hook hangs with safety net (7); Tripod (5) is along the first band furnace shell (1) circumference, and between tripod, circumferential distance is 1.5m ~ 2m;
Described steel springboard (8) is laid on above adjacent two tripods (5), two ends with iron wire colligation on tripod;
Described steel cat ladder (9) is formed by welding mark time (10) between two parallel longitudinal direction beams (11), and weld between two parallel longitudinal direction beams (11), be provided with that band steel makes caged protect cage (13); Described steel cat ladder (9) is arranged between two tripods, is fixed by welding in four fixtures (12) on hot-air stove shell and is welded and fixed with the upper and lower side of two parallel longitudinal direction beams (11).
2. as claimed in claim 1 for the annular hanging type platform that hot-air stove shell is installed, it is characterized in that, described tripod (5) makes of channel-section steel or i iron.
3. as claimed in claim 1 for the annular hanging type platform of hot-air stove shell installation, it is characterized in that, described hangers (4) is weldingly fixed on annular furnace shell inwall, tripod (5), along the first band furnace shell (1) inwall circumference, coordinates railing (6), safety net (7), steel springboard (8) and steel cat ladder (9) to arrange annular hanging type platform on annular furnace shell inwall.
4. as claimed in claim 1 for the annular hanging type platform of hot-air stove shell installation, it is characterized in that, described hangers (4) is weldingly fixed on annular furnace shell outer wall and inwall simultaneously, tripod (5), along the first band furnace shell (1) outer wall and inwall circumference, coordinates railing (6), safety net (7), steel springboard (8) and steel cat ladder (9) to arrange annular hanging type platform on annular furnace shell outer wall and inwall.
5., for a mounting method for the annular hanging type platform of hot-air stove shell installation, it is characterized in that comprising the following steps:
Prefabricated hangers (4), after ground assembly welding completes, is fixed on furnace shell outer wall along furnace shell circumference soldering by a, the first band furnace shell (1), and hangers is suitable for reading apart from the first band furnace shell (1) is 1 ~ 1.2m, and between hangers, circumferential distance is 1.5m ~ 2m;
B, the hook of prefabricated tripod (5) is inserted in hangers (4), along the first band furnace shell (1) circumference, spacing 1.5m, and lower end leg is weldingly fixed on furnace shell;
C, laying steel springboard (8) on adjacent two tripods (5), its end and tripod (5) use iron wire colligation firm, and are hung on the hook of railing (6) by safety net (7), fasten with iron wire;
D, between two tripods, hang prefabricated steel cat ladder (9), the length of foundation steel cat ladder (9) and width the first band furnace shell (1) welding four fixtures (12), and make fixture (12) be weldingly fixed on furnace shell outer wall with the upper and lower side of prefabricated steel cat ladder (9) two parallel longitudinal direction beams (11);
E, with crane by first band furnace shell (1) winch to installation in place on furnace bottom basis together with the ring-shaped platform made through step a ~ d;
After f, the first band furnace shell (1) adjustment in place complete, repeat above-mentioned steps a ~ d, ring-shaped platform is hung on the second band furnace shell (3);
G, with crane, the second band furnace shell (3) is winched to the upper installation in place of the first band furnace shell (1) together with the ring-shaped platform made, docked by bottom weld seam (2) works on;
H, repetition above-mentioned steps e ~ g continue installation the 3rd and are with furnace shell, are linked with ring-shaped platform, until furnace roof.
6., for a method for dismounting for the annular hanging type platform of hot-air stove shell installation, it is characterized in that comprising the following steps:
A, operating personnel stand in go up most on the annular hanging type platform of a band and remove safety net (7) and steel springboard (8);
B, to be with at next and annular hanging type platform to set up the supreme annular hanging type platform bottom of band of bamboo cat ladder, operating personnel stands in leg bamboo cat ladder slicing off the annular hanging type platform tripod (5) of a upper band with gas cutting, and with wire rope, tripod (5) is tied down, with crane, tripod is winched to ground from hangers (4) taking-up, remove and along the circumferential direction carry out successively;
C, with wire rope, steel cat ladder (9) top to be tied down, operating personnel stands in next and is with and annular hanging type platform sets up the supreme annular hanging type platform bottom of band of bamboo cat ladder, operating personnel stands in four fixed connecting pieces (12) bamboo cat ladder slicing off steel cat ladder (9) with gas cutting, with crane, steel cat ladder (9) is winched to ground, from top to bottom while dismounting same layer ring-shaped platform tripod (5), steel cat ladder is removed, remove the whole annular hanging type platform installed for hot-air stove shell until complete.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310299072.6A CN104295077B (en) | 2013-07-17 | 2013-07-17 | Annular hanging platform for mounting stove shell of hot-blast stove, and mounting and dismounting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310299072.6A CN104295077B (en) | 2013-07-17 | 2013-07-17 | Annular hanging platform for mounting stove shell of hot-blast stove, and mounting and dismounting method thereof |
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| CN104295077A true CN104295077A (en) | 2015-01-21 |
| CN104295077B CN104295077B (en) | 2017-02-08 |
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| CN105108396A (en) * | 2015-09-28 | 2015-12-02 | 武汉一冶钢结构有限责任公司 | Blast furnace shell outer wall welding platform and erecting method thereof |
| CN105178681A (en) * | 2015-09-07 | 2015-12-23 | 国网河南新安县供电公司 | Temporary worktable for steel tube tower |
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| CN105108396A (en) * | 2015-09-28 | 2015-12-02 | 武汉一冶钢结构有限责任公司 | Blast furnace shell outer wall welding platform and erecting method thereof |
| CN106639333A (en) * | 2017-02-24 | 2017-05-10 | 中国电建集团河南工程公司 | Installation method of rigid scaffold during spiral water wall installation process |
| CN107587708A (en) * | 2017-09-22 | 2018-01-16 | 宁夏桥多美路桥钢模板科技有限公司 | Foldable high-altitude construction platform and high-altitude construction method |
| CN107587708B (en) * | 2017-09-22 | 2023-12-22 | 昌吉城建市政工程建设有限公司 | Foldable high-altitude construction platform and high-altitude construction method |
| CN110530218A (en) * | 2018-05-24 | 2019-12-03 | 中钢集团武汉安全环保研究院有限公司 | A method of exempt to punch demolition blasting angle steel |
| CN110530218B (en) * | 2018-05-24 | 2021-09-07 | 中钢集团武汉安全环保研究院有限公司 | Method for demolishing angle steel without punching blasting |
| CN110815098A (en) * | 2018-08-08 | 2020-02-21 | 厦门嘉达环保科技有限公司 | Blast cap silencer installation ring platform |
| CN109457971A (en) * | 2018-12-19 | 2019-03-12 | 北京首钢建设集团有限公司 | The construction method of operating platform is set up in a kind of furnace body installation using outer wall hangers |
| CN109779224A (en) * | 2019-03-24 | 2019-05-21 | 中国二十二冶集团有限公司 | Steel structure column overhead connection operating platform and construction method |
| CN112111620A (en) * | 2020-09-23 | 2020-12-22 | 广东韶钢松山股份有限公司 | Ball top refractory dismounting device and method for blast furnace hot blast stove |
| CN112111620B (en) * | 2020-09-23 | 2022-02-01 | 广东韶钢松山股份有限公司 | Ball top refractory dismounting device and method for blast furnace hot blast stove |
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