CN106015729A - Reverse in-position method for vaporization flue in closed plant - Google Patents
Reverse in-position method for vaporization flue in closed plant Download PDFInfo
- Publication number
- CN106015729A CN106015729A CN201610418404.1A CN201610418404A CN106015729A CN 106015729 A CN106015729 A CN 106015729A CN 201610418404 A CN201610418404 A CN 201610418404A CN 106015729 A CN106015729 A CN 106015729A
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- China
- Prior art keywords
- flue
- hoist
- hoist engine
- work
- steel wire
- Prior art date
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- 238000009834 vaporization Methods 0.000 title claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 238000010276 construction Methods 0.000 claims abstract description 9
- 239000002965 ropes Substances 0.000 claims description 44
- 238000010079 rubber tapping Methods 0.000 claims description 15
- 235000019504 cigarettes Nutrition 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 8
- 238000009628 steelmaking Methods 0.000 claims description 7
- 206010022000 Influenza Diseases 0.000 claims description 4
- 238000006073 displacement reactions Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000000463 materials Substances 0.000 claims description 3
- 238000000034 methods Methods 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 2
- 239000010410 layers Substances 0.000 claims 3
- 281000141029 Simple Mobile companies 0.000 claims 1
- 239000003570 air Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
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 [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
Abstract
The invention discloses a reverse in-position method for a vaporization flue in a closed plant. Hoisting points are arranged on roof beams over the in-position position of the flue, and in-position work of the vaporization flue is completed in a reverse hoisting manner through two winch sets and a travelling crane arranged in the plant. The method comprises the construction steps of firstly, arrangement of a lifting device, secondly, steam pocket horizontal spanning, thirdly, hoisting of an upper flue body, fourthly, shifting of the lifting device and fifthly, hoisting of middle and lower flue bodies. According to the method, on the premise that a roof steel structure does not need to be demounted, by means of the structure of the plant, the arranged travelling crane and the self-arranged lifting device, reverse in-position work of flue equipment is achieved, the influence on production of a production line is reduced, the engineering input cost is reduced, and the progress of engineering construction is guaranteed.
Description
Technical field
The invention belongs to equipment installation method, especially relate to the method that evaporated flue under sealing power house is the most in place.
Background technology
Evaporated flue equipment is one of key equipment of steelmaking converter, and when being converter smelting, the passage of soot emissions sets
Standby, it is applied between the most high-rise drum platform of steel-making high building converter mouth, conventional being linked up by seven sections of flues forms,
Maximum one section of weight of equipment cannot be done directly the work in place of a whole set of flue in about 20t, Converter Maintenance driving.
Domestic similar engineering is constructed, and generally uses the mode with the steel-making Tong Bu lifting of tower steel structure to complete flue piecemeal and sets
Standby in place.High-rise steel structure carries out flue installation or replacing after closing again, as used on large-scale crane directly carries out
Portion's flue is the most in place, is necessary for removing the roofing at steel-making high building flue and low at Factory Building Standing position of a crane
Layer Steel Structure, long construction period and directly affect production line produce, simultaneously engineering Meteorological increase.
Summary of the invention
The technical problem to be solved is, proposes the method that under sealing power house, evaporated flue is the most in place,
Realize flue on the premise of not removing layer Steel Structure, utilize mill construction, the driving of configuration and from setting
Refitting is put, it is achieved the work in place of air flue equipment safety, decreases the Influence of production to production line, reduces engineering
Meteorological, it is ensured that the progress of engineering construction.
In order to solve above-mentioned technical problem, the invention provides following technical scheme: vapour under a kind of sealing power house
Change the method that flue is the most in place, it is characterised in that construction procedure is: the first step, hoisting apparatus are arranged；The
Two steps, drum level cross across；3rd step, top flue lift；4th step, hoisting apparatus shift；5th step,
Middle and lower part flue lifting；
The first step, hoisting apparatus are arranged；
A, according to flue lifting involved by two lifting point roof girder structures, carry out structure stress checking computations, two
Root roof girder center, respectively uses two block plates, is welded on roof girder both sides, makes two roof girder centers be formed
Box-structure；
B, centered by evaporated flue hole for hoist diagonal angle arrange First, second 5t hoist engine, vaporization cigarette
The roof girder center of hole for hoist upper end, road respectively arranges a set of assembly pulley, with steel wire rope and evaporated flue hole for hoist pair
First and second 5t hoist engines that angle is arranged connect, and complete the hoisting apparatus setting that flue inversely hoists；
Second step, air flue horizontal cross across；
Utilize tapping inter-bank car owner's flat lifting mode of hook WAWQ, by flue to steel-making high building ground floor platform translation,
Stretch into the flue A right-hand member in platform to fall in the simple mobile device arranged in advance, then play cigarette with auxiliary hook load-bearing
After road A left end, withdraw from tapping inter-bank car owner's hook, the hoisting apparatus that recycling roofing is arranged, pass through evaporated flue
Hoist rope is arranged on flue A right-hand member by hole for hoist, starts first and second 5t hoist engines simultaneously,
Make steel wire rope stress, formed and inter-bank car auxiliary hook of tapping is to lifting the setting of flue A, synchronize micro-tapping inter-bank car
Auxiliary hook and two 5t steel wire rope of windlass, make flue A form gravity motion under stress premise, by simply
Mobile device sliding, completes flue A and moves horizontally, thus the level realizing flue A is crossed across work；Flue B,
Flue C is also adopted by the same manner and completes level and cross across work；
3rd step, top flue lift；
A, first and second 5t hoist engines of startup, make flue A right-hand member vertical-lift, removal tapping inter-bank car
Auxiliary hook, makes flue A form upright state；
B, continue two the 5t hoist engines that hoist, make flue A right-hand member absolute altitude exceed flue A absolute altitude in place 500mm
After, stop two 5t hoist engines simultaneously；Middle and lower part on the right side of flue A, arranges a 10t chain block,
According to center size in place for flue A, reverse starting First, second 5t hoist engine, make therewith
The steel wire rope connected returns rope, pulls with chain block simultaneously, makes the most micro-movement in flue A center, by volume
Raise repeatedly the returning of machine and chain block, pull work, complete flue A and be seated in the work on vapotron top,
Stop First, second 5t hoist engine and chain block action, with flue connecting bolt, flue A is fixed
At the platform of layout design, then remove hoist engine and the chain block control action to flue A, complete cigarette
The work in place of road A；
C, complete the work in place of flue B in the same way, utilize first and second 5t hoist engines by cigarette
Road C lifts to next layer of platform of hoist engine platform, and horizontal positioned flue C, removes first and second 5t
Hoist engine is arranged on the steel wire rope on flue C, completes the work in place of top flue at this；
4th step, hoisting apparatus shift；
Mobile First 5t hoist engine is to next layer of platform, and assembly pulley A moves to this platform upper, and even
Connect complete hoist rope, complete First 5t hoist engine and the connection of assembly pulley A；Move second 5 again
T hoist engine is to lower two-layer platform, and assembly pulley B moves to left diagonal angle platform Lin Bianchu, and connects complete lifting
Steel wire rope, completes second 5t hoist engine and the connection of assembly pulley B, thus completes the displacement work of hoisting apparatus
Make；
5th step, middle and lower part flue lift；
A, the steel wire rope of First 5t hoist engine is arranged on the top of flue C, second 5t hoist engine
Steel wire rope be arranged on the bottom of flue C, start first and second 5t hoist engines simultaneously, make flue C exist
First and second 5t hoist engines to carrying off, complete work in place；
Flue D, to inside the sinistral platform upper right corner, is lifted to flue by b, mobile pulley group B with maintenance driving
In the lower platform of D on-station position, the steel wire rope of second 5t hoist engine is arranged on flue D top, inspection
Repair driving steel wire rope and be arranged on flue D bottom, use hoist engine and maintenance driving to lifting, just complete flue D
Position work；
C, directly utilize maintenance driving by flue F, flue G lift to converter mouth operating position；
D, after other flues all complete centering, utilize maintenance driving directly to lift flue E to operating position,
Realize the through of a whole set of flue, thus complete the reverse installment work of evaporated flue under closed workshop.
As a preferred technical solution of the present invention, in the described first step, the specification of described steel plate is 2000
× 750 × 30mm, material is Q235；In the described first step, described assembly pulley be 4 × 4 specifications be 32t
Assembly pulley, described steel wire rope is with a diameter ofSpecification is the steel wire rope of 6 × 37+1.
The present invention is reached to provide the benefit that: arrange suspension centre on roof girder directly over flue place in place, utilizes
The driving that two set elevator units and Factory Building are arranged, uses reverse lifting mode, completes the work in place of evaporated flue；
Reduce engineering cost to put into, it is ensured that the progress of engineering construction.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, with the present invention
Embodiment be used for together explaining the present invention, be not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is that the method enforcement vertical section that under sealing power house proposed by the invention, evaporated flue is the most in place shows
It is intended to；
Fig. 2 is that air flue horizontal is crossed across schematic cross-sectional view；
Fig. 3 is flue vertical-lift schematic diagram；
Fig. 4 is that flue A implements schematic longitudinal section；
Fig. 5 is that flue B implements schematic longitudinal section；
Fig. 6 is flue C vertical-lift schematic longitudinal section；
Fig. 7 is flue C schematic cross-sectional view in place；
Fig. 8 is flue D schematic cross-sectional view in place；
Fig. 9 is flue F, G schematic cross-sectional view in place；
Figure 10 flue E schematic cross-sectional view in place；
Figure 11 is a whole set of flue schematic longitudinal section；
In figure: 1, converter；2, vapotron；3-1, flue A；3-2, flue B；3-3, flue
C；3-4, flue D；3-5, flue E；3-6, flue F；3-7, flue G；4-1, First 5t
Hoist engine；4-2, second 5t hoist engine；5-1, assembly pulley A；5-2, assembly pulley S；6, simply move
Device；7, maintenance driving；8-1, roof girder A；8-2, roof girder B；9,10t chain block；10、
Tapping inter-bank car.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated, it will be appreciated that described herein excellent
Select embodiment to be merely to illustrate and explain the present invention, being not intended to limit the present invention.
The present invention provides a kind of method that under sealing power house, evaporated flue is the most in place, and construction procedure is: the first step,
Hoisting apparatus is arranged；Second step, drum level cross across；3rd step, top flue lift；4th step, lifting
Device shifts；5th step, middle and lower part flue lift.
As shown in Figure 1 and Figure 2, step one, hoisting apparatus are arranged；
A, the roof girder A8-1 according to involved by flue lifting, roof girder B8-2 structure, carry out structure stress
Checking computations, two roof girder centers, respectively with two pieces of 2000 × 750 × 30mm, material is the steel plate of Q235,
It is welded on roof girder both sides, makes roof girder A8-1, roof girder B8-2 center form box-structure, in raising
Stress bearing capacity at heart suspension centre；
B, centered by evaporated flue hole for hoist diagonal angle arrange First 5t hoist engine 4-1, second 5t volume
Raise machine 4-2, the roof girder A8-1 in evaporated flue hole for hoist upper end, roof girder B8-2 center, respectively arrange
Assembly pulley A5-1 and assembly pulley B5-2, with a diameter ofSpecification is steel wire rope and the vaporization of 6 × 37+1
First 5t hoist engine 4-1 and second 5t hoist engine 4-2 that flue hole for hoist diagonal angle is arranged connect, and complete
The hoisting apparatus that flue inversely hoists is arranged.
As shown in Figure 2 and Figure 3, step 2, air flue horizontal cross across；
Utilize the tapping inter-bank car 10 flat lifting mode of main hook WAWQ, by flue A3-1 to steel-making high building ground floor
Platform translation, stretches into the flue A3-1 right-hand member in platform, falls in the simple mobile device 6 arranged in advance,
Then after playing flue A3-1 left end with auxiliary hook load-bearing, withdrawing from tapping inter-bank car 10 main hook, recycling roofing is arranged
Hoisting apparatus, by evaporated flue hole for hoist, hoist rope is arranged on flue A3-1 right-hand member, simultaneously
Start First 5t hoist engine 4-1 and second 5t hoist engine 4-2, make steel wire rope stress, formed and tap
Inter-bank car 10 auxiliary hook, to lifting the setting of flue A3-1, synchronizes micro-tapping inter-bank car 10 auxiliary hook and First 5t
Hoist engine 4-1 and second 5t hoist engine 4-2 steel wire rope, make flue A3-1 form center of gravity under stress premise
Mobile, by the sliding of simple mobile device 6, complete flue A3-1 and move horizontally, thus realize flue A3-1
Level cross across work.Flue B3-2, flue C3-3 are also adopted by the same manner and complete level and cross across work.
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, step 3, top flue lift；
A, startup First 5t hoist engine 4-1 and second 5t hoist engine 4-2, make flue A3-1 right-hand member hang down
Straight lifting, removal tapping inter-bank car 10 auxiliary hook, make flue A3-1 form upright state；
B, continue the First 5t hoist engine 4-1 and second 5t hoist engine 4-2 that hoists, make flue A3-1 right
After end absolute altitude exceedes flue A3-1 absolute altitude in place 500mm, stop First 5t hoist engine 4-1 and second simultaneously
Platform 5t hoist engine 4-2.Middle and lower part on the right side of flue A3-1, arranges a 10t chain block 9, according to cigarette
Center size in place for road A3-1, reverse starting First 5t hoist engine 4-1 and second 5t elevator
Machine 4-2, makes the steel wire rope being attached thereto return rope, pulls with chain block 9 simultaneously, make flue A3-1 center to
The micro-movement in right side, by First 5t hoist engine 4-1 and second 5t hoist engine 4-2 and chain block 9
Repeatedly return rope and pull, complete flue A3-1 and be seated in the work on vapotron 2 top, stop first
Platform 5t hoist engine 4-1 and second 5t hoist engine 4-2 and chain block 9 action, will with flue connecting bolt
Flue A3-1 is fixed at the platform of layout design, then splits out First 5t hoist engine 4-1 and second
5t hoist engine 4-2 and the chain block 9 control to flue A3-1, complete the work in place of flue A3-1；
C, complete the work in place of flue B3-2 in the same way.Utilize First 5t hoist engine 4-1 and
Flue C3-3 is lifted to next layer of platform of hoist engine platform by second 5t hoist engine 4-2, and horizontal positioned
Flue C3-3, removes First 5t hoist engine 4-1 and second 5t hoist engine 4-2 and is arranged on flue C3-3
On steel wire rope, complete the work in place of top flue at this.
As shown in Figure 6, step 4, hoisting apparatus displacement；
Mobile hoist engine 4-1 to next layer platform of First 5t, and assembly pulley A5-1 is moved on this platform
Portion, and connect complete hoist rope, complete First 5t hoist engine 4-1 and the connection of assembly pulley A5-1；
Move second 5t hoist engine 4-2 again to lower two-layer platform, and assembly pulley B5-2 is moved to left diagonal angle platform
Lin Bianchu, and connect complete hoist rope, complete second 5t hoist engine 4-2's and assembly pulley B5-2
Connect, thus complete the shift operation of hoisting apparatus.
As shown in Fig. 8, Fig. 9, Figure 10, Figure 11, step 5, middle and lower part flue lift；
A, the steel wire rope of First 5t hoist engine 4-1 is arranged on the top of flue C3-3, second 5t
The steel wire rope of hoist engine 4-2 is arranged on the bottom of flue C3-3, starts First 5t hoist engine 4-1 simultaneously
With second 5t hoist engine 4-2, make flue C3-3 at First 5t hoist engine 4-1 and second 5t elevator
Machine 4-2 to carrying off, complete work in place；
Flue D3-4, to inside the sinistral platform upper right corner, is hung by b, mobile pulley group B5-2 with maintenance driving 7
It is filled on the platform below flue D3-4 on-station position, the steel wire rope of second 5t hoist engine 4-2 is arranged
On flue D3-4 top, maintenance driving 7 steel wire ropes are arranged on flue D3-4 bottom, use second 5t
Hoist engine 4-2 and maintenance driving 7 work in place to having lifted flue D3-4；
C, directly utilize maintenance driving 7 by flue F3-6, flue G3-7 lift to converter 1 fire door working position
Put；
D, after other flues all complete centering, utilize maintenance driving 7 directly by flue E3-5 lifting to work
Position, it is achieved a whole set of flue through, thus complete the reverse installment work of evaporated flue under closed workshop.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to this
Bright, although the present invention being described in detail with reference to previous embodiment, those skilled in the art is come
Saying, the technical scheme described in foregoing embodiments still can be modified by it, or to wherein part skill
Art feature carries out equivalent.All within the spirit and principles in the present invention, any amendment of being made, equivalent are replaced
Change, improvement etc., should be included within the scope of the present invention.
Claims (2)
1. the method that under a sealing power house, evaporated flue is the most in place, it is characterised in that construction procedure is: the
One step, hoisting apparatus are arranged；Second step, drum level cross across；3rd step, top flue lift；4th step,
Hoisting apparatus shifts；5th step, middle and lower part flue lift；
The first step, hoisting apparatus are arranged；
A, according to flue lifting involved by two lifting point roof girder structures, carry out structure stress checking computations, two
Root roof girder center, respectively uses two block plates, is welded on roof girder both sides, makes two roof girder centers be formed
Box-structure；
B, centered by evaporated flue hole for hoist diagonal angle arrange First, second 5t hoist engine, vaporization cigarette
The roof girder center of hole for hoist upper end, road respectively arranges a set of assembly pulley, with steel wire rope and evaporated flue hole for hoist pair
First and second 5t hoist engines that angle is arranged connect, and complete the hoisting apparatus setting that flue inversely hoists；
Second step, air flue horizontal cross across；
Utilize tapping inter-bank car owner's flat lifting mode of hook WAWQ, by flue to steel-making high building ground floor platform translation,
Stretch into the flue A right-hand member in platform to fall in the simple mobile device arranged in advance, then play cigarette with auxiliary hook load-bearing
After road A left end, withdraw from tapping inter-bank car owner's hook, the hoisting apparatus that recycling roofing is arranged, pass through evaporated flue
Hoist rope is arranged on flue A right-hand member by hole for hoist, starts first and second 5t hoist engines simultaneously,
Make steel wire rope stress, formed and inter-bank car auxiliary hook of tapping is to lifting the setting of flue A, synchronize micro-tapping inter-bank car
Auxiliary hook and two 5t steel wire rope of windlass, make flue A form gravity motion under stress premise, by simply
Mobile device sliding, completes flue A and moves horizontally, thus the level realizing flue A is crossed across work；Flue B,
Flue C is also adopted by the same manner and completes level and cross across work；
3rd step, top flue lift；
A, first and second 5t hoist engines of startup, make flue A right-hand member vertical-lift, removal tapping inter-bank car
Auxiliary hook, makes flue A form upright state；
B, continue two the 5t hoist engines that hoist, make flue A right-hand member absolute altitude exceed flue A absolute altitude in place 500mm
After, stop two 5t hoist engines simultaneously；Middle and lower part on the right side of flue A, arranges a 10t chain block,
According to center size in place for flue A, reverse starting First, second 5t hoist engine, make therewith
The steel wire rope connected returns rope, pulls with chain block simultaneously, makes the most micro-movement in flue A center, by volume
Raise repeatedly the returning of machine and chain block, pull work, complete flue A and be seated in the work on vapotron top,
Stop First, second 5t hoist engine and chain block action, with flue connecting bolt, flue A is fixed
At the platform of layout design, then remove hoist engine and the chain block control action to flue A, complete cigarette
The work in place of road A；
C, complete the work in place of flue B in the same way, utilize first and second 5t hoist engines by cigarette
Road C lifts to next layer of platform of hoist engine platform, and horizontal positioned flue C, removes first and second 5t
Hoist engine is arranged on the steel wire rope on flue C, completes the work in place of top flue at this；
4th step, hoisting apparatus shift；
Mobile First 5t hoist engine is to next layer of platform, and assembly pulley A moves to this platform upper, and even
Connect complete hoist rope, complete First 5t hoist engine and the connection of assembly pulley A；Move second 5 again
T hoist engine is to lower two-layer platform, and assembly pulley B moves to left diagonal angle platform Lin Bianchu, and connects complete lifting
Steel wire rope, completes second 5t hoist engine and the connection of assembly pulley B, thus completes the displacement work of hoisting apparatus
Make；
5th step, middle and lower part flue lift；
A, the steel wire rope of First 5t hoist engine is arranged on the top of flue C, second 5t hoist engine
Steel wire rope be arranged on the bottom of flue C, start first and second 5t hoist engines simultaneously, make flue C exist
First and second 5t hoist engines to carrying off, complete work in place；
Flue D, to inside the sinistral platform upper right corner, is lifted to flue by b, mobile pulley group B with maintenance driving
In the lower platform of D on-station position, the steel wire rope of second 5t hoist engine is arranged on flue D top, inspection
Repair driving steel wire rope and be arranged on flue D bottom, use hoist engine and maintenance driving to lifting, just complete flue D
Position work；
C, directly utilize maintenance driving by flue F, flue G lift to converter mouth operating position；
D, after other flues all complete centering, utilize maintenance driving directly to lift flue E to operating position,
Realize the through of a whole set of flue, thus complete the reverse installment work of evaporated flue under closed workshop.
2., according to the method that evaporated flue under a kind of sealing power house described in claim 1 is the most in place, it is special
Levying and be, in the described first step, the specification of described steel plate is 2000 × 750 × 30mm, and material is Q235；Institute
State in the first step, described assembly pulley be 4 × 4 specifications be the assembly pulley of 32t, described steel wire rope is with a diameter ofSpecification is the steel wire rope of 6 × 37+1.
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| CN201610418404.1A CN106015729B (en) | 2016-06-08 | 2016-06-08 | A kind of reverse method in place of evaporated flue under sealing power house |
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| CN201610418404.1A CN106015729B (en) | 2016-06-08 | 2016-06-08 | A kind of reverse method in place of evaporated flue under sealing power house |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108946470A (en) * | 2018-07-09 | 2018-12-07 | 莱芜钢铁集团有限公司 | A kind of replacing options for converter entirety flue |
| CN108996396A (en) * | 2018-07-23 | 2018-12-14 | 中国化学工程第十四建设有限公司 | Installation engineering method of the large-scale tray drier in restricted clearance |
| 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 |
| CN110077963A (en) * | 2019-04-30 | 2019-08-02 | 中国二十冶集团有限公司 | A kind of installation method of large tank |
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| CN104846143A (en) * | 2015-06-09 | 2015-08-19 | 中国十九冶集团有限公司 | Construction method for replacing steelmaking converter flue |
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| US5881504A (en) * | 1995-05-15 | 1999-03-16 | Obayashi Corporation | Temporary frame system for construction |
| CN101264845A (en) * | 2008-05-06 | 2008-09-17 | 首钢总公司 | Crown block high altitude integrated suspension transposition construction method |
| CN202245865U (en) * | 2011-10-08 | 2012-05-30 | 中国十九冶集团有限公司 | Device for hoisting head pulley of sintering machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108946470A (en) * | 2018-07-09 | 2018-12-07 | 莱芜钢铁集团有限公司 | A kind of replacing options for converter entirety flue |
| CN108996396A (en) * | 2018-07-23 | 2018-12-14 | 中国化学工程第十四建设有限公司 | Installation engineering method of the large-scale tray drier in restricted clearance |
| CN108996396B (en) * | 2018-07-23 | 2019-09-20 | 中国化学工程第十四建设有限公司 | Installation engineering method of the large-scale tray drier in restricted clearance |
| 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 |
| CN110077963A (en) * | 2019-04-30 | 2019-08-02 | 中国二十冶集团有限公司 | A kind of installation method of large tank |
| CN110077963B (en) * | 2019-04-30 | 2021-03-02 | 中国二十冶集团有限公司 | Installation method of large tank |
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| CN106015729B (en) | 2018-03-06 |
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