CN105177202B - A kind of blast furnace overhaul method - Google Patents
A kind of blast furnace overhaul method Download PDFInfo
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- CN105177202B CN105177202B CN201510691477.3A CN201510691477A CN105177202B CN 105177202 B CN105177202 B CN 105177202B CN 201510691477 A CN201510691477 A CN 201510691477A CN 105177202 B CN105177202 B CN 105177202B
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- 238000000034 method Methods 0.000 title claims abstract 10
- 238000001816 cooling Methods 0.000 claims abstract 18
- 239000011449 brick Substances 0.000 claims abstract 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract 4
- 239000010959 steel Substances 0.000 claims abstract 4
- 238000009434 installation Methods 0.000 claims abstract 2
- 238000013517 stratification Methods 0.000 claims abstract 2
- 239000012141 concentrate Substances 0.000 claims 1
- 230000003028 elevating effect Effects 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 230000001360 synchronised effect Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 238000004904 shortening Methods 0.000 abstract 1
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Abstract
The invention discloses a kind of blast furnace overhaul method, belong to blast furnace overhaul, its step is：A, balladeur train is set on blast furnace；B, dismounting furnace shell and cooling wall, every layer of furnace shell piecemeal are removed together with cooling wall；C, transport from different outlets and the interspersed progress of stove is taken off in furnace shell and cooling wall, stove, accelerate dismounting progress；Layered platform, stratified operation are set on D, the furnace shell installed below balladeur train；E, the lifting device built by laying bricks or stones in stove is divided into layered platform；The upside-down mounting furnace shell on layered platform；After F, furnace shell are installed, the cooling wall and steel brick on layered platform top are installed, the cooling wall that landing beam at layered platform takes cooling wall position is finally installed；Secondary stratification operation in G, stove, the layered platform 4 of dismounting, then layered platform is reset on steel brick, the installation of gas export control, roof support ring and furnace top equipment is carried out on layered platform.It can realize the shortening blast furnace overhaul main line engineering time, and the engineering time is short.
Description
Technical field
The present invention relates to blast furnace overhaul field, more particularly to a kind of blast furnace overhaul method.
Background technology
The general furnace body frame of overhaul of blast furnace is motionless, the following furnace shell of roof support ring and equipment integral replacing, due to height
Stove periphery tapped a blast furnace the system such as factory building and feeding, flushing cinder encirclement, large-scale crane can not be close, thus furnace shell be difficult to it is whole circle install,
The technique for carrying out building by laying bricks or stones in stove again by normal dismounting, installation furnace shell and cooling wall simultaneously, the engineering time is long.
The current state-of-the-art quick overhaul pipeline of blast furnace is passage method, i.e., nearby position installs furnace shell and cooling wall
Monolithic push is to installation site again, building by laying bricks or stones for resistance to material in stove is carried out after being connected with furnace foundation again, due to this method long construction period, technique
It is required that high, application conditions require harsh, and large-scale interim measure is more, costly.
Chinese invention patent, Authorization Notice No.：The B of CN 101688256, authorized announcement date：It is on July 13rd, 2011, open
The handling device and the overhaul method of blast furnace of a kind of annular component for not using chassis.The overhaul method bag of blast furnace
Include：Preparatory process, sets the transport passage for transporting from job site to operation field, and sets and can be slided and upper table in transport passage for transporting
Face has the carrying stand of loading end；Separation circuit, flatly cuts the furnace foundation below body of heater at the height and position of loading end
Part, and in the horizontal direction between cutting body of heater upper section and furnace bottom component, so as to cut out furnace bottom component；Transfer process,
Furnace bottom component is moved horizontally, by its transfer to loading end；Transportation process, carries the carrying stand edge for carrying furnace bottom component
Passage is moved towards operation field.Its weak point is：The patent need to set special transport passage for transporting, and scene must have transport passage for transporting
Large scale equipment is required in space, separation circuit, transfer process and transportation process and assists completion, this method cost is high, construction week
Phase is long, and can produce influence to the stability of blast furnace.
The content of the invention
1. the invention technical problem to be solved
For the problem of the blast furnace overhaul engineering time is long in the prior art, the invention provides a kind of blast furnace overhaul side
Method.It can realize the shortening blast furnace overhaul main line engineering time, and the engineering time is short.
2. technical scheme
To solve the above problems, the technical scheme that the present invention is provided is：
A kind of blast furnace overhaul method, its step is：
A, balladeur train is set on blast furnace；
B, dismounting furnace shell and cooling wall, every layer of furnace shell piecemeal are removed together with cooling wall；
C, from different outlets furnace shell and cooling wall are transported, while stove is taken off in stove intersects progress, accelerate dismounting progress；
Layered platform, stratified operation are set on D, the furnace shell installed below balladeur train and at furnace throat band；
E, the lifting device built by laying bricks or stones under layered platform in setting stove；The upside-down mounting furnace shell on layered platform；
After F, furnace shell are installed, the cooling wall and steel brick on layered platform top are installed, platform at layered platform is finally installed
Beam takes the cooling wall of cooling wall position；
Secondary stratification operation in G, stove, the layered platform of dismounting, then layered platform is reset on steel brick, it is flat in layering
The installation of gas export control, roof support ring and furnace top equipment is carried out on platform.
Preferably, if bustle pipe is not changed in overhaul, balladeur train, which is arranged on, to tap a blast furnace in factory building, can remove and set balladeur train side
Tuyere platform；If bustle pipe is changed in overhaul, tuyere platform is without removing.
Preferably, balladeur train is arranged on the framework in the middle part of body of heater.
Preferably, the suspension hook driven a vehicle using furnace roof, is carried out blocked breaking to furnace shell and cooling wall by elevating capacity and removed, i.e., every layer
Cooling wall piecemeal is removed together with furnace shell.
Preferably, ground is fallen into from furnace roof during the dismounting above tuyere zone of blocked breaking is removed furnace shell and cooling wall position,
Tuyere zone and the furnace shell of following part are transported when being removed with cooling wall from cast house；Stove can be taken off in stove when furnace top equipment is removed,
Once after the dismounting of furnace roof water cooling gear-box, concentrate one's energy daytime to remove furnace shell, take off the progress of stove night, have little time if taking off stove, when
When furnace shell is removed to tuyere zone, stove is taken off synchronous with furnace shell dismounting.
Preferably, when the upper surface that furnace shell and cooling wall are attached to furnace shell is slightly below the balladeur train lower surface that need to be set,
Layered platform is set on cooling wall, and 8 points of layered platform point are supported on furnace shell.
Preferably, the method for upside-down mounting is from top to bottom first to be hung on the beam of furnace body frame platform, then by the suitable of formal dress
Sequence centering is welded.
3. beneficial effect
The technical scheme provided using the present invention, compared with prior art, is had the advantages that：
(1) if bustle pipe is changed in overhaul, balladeur train is arranged in cast house factory building at tapping hole, and balladeur train is in cast house factory
Room inner support is simple, highly with tuyere platform sustained height, and using the driving assembling furnace shell tapped a blast furnace in factory building, furnace shell can be with whole
Circle is installed, and saves cost, reduces expenditure；If bustle pipe is changed without in overhaul, balladeur train is arranged on the framework in the middle part of body of heater, good
Place is that the time of cross-operation is longer during cooling wall and furnace shell is removed, and shortens the main line construction period, with prior art
Middle use first tears stove open, and the method for reconstruction stove is compared, and is shortened the engineering time, is saved 2 times of cost；
(2) present invention removes furnace shell and cooling wall, and every layer of furnace shell piecemeal is removed together with cooling wall；Driven a vehicle using furnace roof
Suspension hook, carries out blocked breaking to furnace shell and cooling wall and removes, i.e., every layer some pieces of furnace shell point is removed together with cooling wall, crossed construction,
Shorten the engineering time；
(3) furnace top equipment typically also needs overhaul during blast furnace overhaul, and protectability is removed, it is therefore an objective to the suspension hook for making furnace roof drive a vehicle
It can be used in removing furnace shell and cooling wall, because furnace roof driving is mainly used for the maintenance of furnace top equipment, so elevating capacity
Limited, the weight of furnace shell and cooling wall after piecemeal in this way, is not damaged in the range of the elevating capacity that furnace roof is driven a vehicle
Bad furnace shell and cooling wall, and some pieces of every layer of furnace shell point remove with cooling wall together with, crossed construction, dismounting job placement rationally has
Sequence, realizes the purpose of protective demolition, time and cost is saved, without building crane gear in addition；
(4) can take off stove in stove when furnace top equipment of the present invention is removed, after the water cooling gear-box of furnace roof is removed, daytime collection
Middle energy removes furnace shell, and night progress is taken off stove, had little time if taking off stove, when furnace shell is removed to tuyere zone, takes off stove and stove
Shell removes synchronous progress, to shorten the construction period；
(5) present invention divides into the lifting device built by laying bricks or stones in stove in layered platform, to build refractory brick, stove by laying bricks or stones in blast furnace
Interior building by laying bricks or stones is not take up the main line construction period substantially；
(6) present invention upside-down mounting furnace shell on layered platform；The method of upside-down mounting is from top to bottom first respectively to hang furnace shell II5
Welded on the beam of different furnace body frame platforms, then by the order centering of formal dress；Another method is that furnace shell is from top to bottom
Weld, then carried on the beam for hanging over furnace body frame platform after docking, next band furnace shell is installed；Two methods are compared, the side of the latter one
Face needs the big lifting gear of elevating capacity, on the other hand, two furnace shells is hung on the beam of a furnace body frame platform, to body of heater
The beam load-bearing requirements of framework platform are high, and the former intensity requirement to landing beam is low, without the lifting gear that hoisting power is larger,
Without special lifting device, excessive reinforcing need not be made to framework platform beam；
(7) present invention faces greatly facility simply, without complicated construction technology without special lifting device.
Brief description of the drawings
Fig. 1 is schematic diagram of the invention.
Label declaration in schematic diagram：
1st, balladeur train；2nd, furnace shell I；3rd, elevator；4th, layered platform；5th, furnace shell II；6th, furnace body frame.
Embodiment
To further appreciate that present disclosure, with reference to drawings and Examples, the present invention is described in detail.
Embodiment 1
A kind of blast furnace overhaul method, its step is：
A, the setting balladeur train 1 on blast furnace；
If bustle pipe is changed in overhaul, balladeur train 1 is arranged in cast house factory building at tapping hole, and balladeur train 1 is in cast house factory
Room inner support is simple, highly with tuyere platform sustained height, and using the driving assembling furnace shell tapped a blast furnace in factory building, furnace shell can be with whole
Circle is installed, and saves cost, reduces expenditure；Have the disadvantage that the position of body of heater stratified operation is relatively low, the time of cross-operation is less.
If bustle pipe is changed without in overhaul, balladeur train 1 is arranged on the framework in the middle part of body of heater, and benefit is to remove cooling wall
During furnace shell, the time of cross-operation is longer, shortens the main line construction period.
B, dismounting furnace shell and cooling wall, every layer of furnace shell piecemeal are removed together with cooling wall；The suspension hook driven a vehicle using furnace roof, it is right
Furnace shell and cooling wall carry out blocked breaking and removed, i.e., every layer some pieces of furnace shell point is removed together with cooling wall, does not influence blast furnace
Stability, crossed construction shortens the engineering time.Furnace top equipment typically also needs overhaul during blast furnace overhaul, and protectability is removed, purpose
It is that the suspension hook for making furnace roof drive a vehicle can be used in removing furnace shell and cooling wall, is driven a vehicle due to furnace roof and be mainly used for the inspection of furnace top equipment
Repair, so elevating capacity is limited, the weight of furnace shell and cooling wall after piecemeal in the range of the elevating capacity that furnace roof is driven a vehicle,
In this way, furnace shell and cooling wall are not damaged, and every layer of some pieces of furnace shell point is removed together with cooling wall, crossed construction,
Job placement rational and orderly is removed, the purpose of protective demolition is realized, time and cost is saved, is reseted without erecting in addition
It is standby.
C, from different outlets furnace shell and cooling wall are transported, while carrying out taking off stove in stove, understand material remaining in stove, in order to avoid
Influence construction, accelerates dismounting progress；When being removed to the furnace shell above tuyere zone and cooling wall blocked breaking, the furnace shell removed and cooling
The ground that wall is transported to outside stove from furnace roof by furnace roof driving, when being removed to tuyere zone and the furnace shell of following part with cooling wall, from
Tapping hole is transported；Stove can be taken off in stove when furnace top equipment is removed, after the water cooling gear-box of furnace roof is removed, daytime concentrates one's energy
Furnace shell is removed, night progress is taken off stove, had little time if taking off stove, when furnace shell is removed to tuyere zone, take off stove and removed with furnace shell
It is synchronous to carry out, to shorten the construction period.
D, the setting layered platform 4 on furnace shell；When the upper surface that furnace shell and cooling wall are attached to furnace shell is slightly below setting
During 1 lower surface of balladeur train, layered platform 4 is set on the lower surface of balladeur train 1, furnace shell, 8 points of layered platform 4 point are supported on furnace shell.
E, stratified operation, the lifting device built by laying bricks or stones in stove is divided into layered platform 4, to build fire resisting by laying bricks or stones in blast furnace
Building by laying bricks or stones in brick, stove is not take up the main line construction period substantially；The upside-down mounting furnace shell on layered platform 4；The method of upside-down mounting is, by upper and
On the lower beam that furnace shell II5 is first hung over to different furnace body frame platforms 6 respectively, then by the order centering welding of formal dress；Other one
The method of kind is that furnace shell is welded after from top to bottom docking, then has been carried on the beam for hanging over furnace body frame platform 6, installs next band furnace shell.
Two methods are compared, and on the one hand the latter needs the big lifting gear of elevating capacity, on the other hand, furnace body frame platform 6
Two furnace shells are hung on beam, high to the beam load-bearing requirements of furnace body frame platform 6, the former intensity requirement to landing beam is low, also without
The lifting gear that hoisting power is larger is needed, without special lifting device, excessive reinforcing need not be made to framework platform beam.
After F, furnace shell are installed, the cooling wall and steel brick on the top of layered platform 4 are installed, platform at layered platform is finally installed
Beam takes the cooling wall of cooling wall position；Wherein, steel brick is located at furnace throat band.
Secondary stratification operation in G, stove, the layered platform 4 of dismounting is arranged on as protecting platform on steel brick, in protecting platform
The upper installation for carrying out gas export control, roof support ring and furnace top equipment；
Embodiment 2
The method, totally 66 days engineering time, with existing skill have been used in the extending capacity reformation overhaul of certain steel plant 3# blast furnaces
Using stove is first torn open in art, the method for reconstruction stove is compared, shortens the engineering time, save 2 times of cost, wherein balladeur train 1 is to set
Put on cast house roof, the furnace shell of ground assembling hangs on balladeur train by loop wheel machine, slides onto in furnace body frame, by being arranged on throat platform
On elevator installed, the furnace shell on layered platform 4 has carried out upside-down mounting with the method hung on furnace body frame beam.
Specific method is：
1st, 250t crawler cranes and furnace shell assembly platform are set in gravitational precipitator east side, furnace shell assembly platform can be suitable for two
Band furnace shell assembling, crawler crane operating mode uses 45m mobile jibs.
2nd, equipment protection of the furnace roof from hopper to pressure box is removed, and hinders furnace roof 25t drivings operation to body of heater center
Vierendeel girder and platform removal on position.
3rd, furnace shell is removed with one of blocked breaking of steel brick and cooling wall.
4th, in gravitational dust collection side highly at+19.6m positions, to set the balladeur train 1 slided during furnace shell installation, balladeur train 1 is by H types
Steel is made, and the support column of balladeur train 1 falls on cast house platform.Blast furnace framework+23.1m platforms are removed, by dedusting curb girder
And diagonal brace, because hindering the furnace shell I2 being placed on balladeur train 1 to be dragged in center position in stove in+23.1m height.
5th, set four furnace shells that suspension centre is installed on furnace body frame+30.5m landing beams, 250t crawler cranes hang on furnace shell I2
Sliding after beam for balladeur train 1 is drawn into furnace body frame by elevator 3, is installed using elevator 3 is lifted.
6th, when furnace shell is attached to about+19.5m, tuyere big sleeve is installed, during furnace shell is installed, furnace bottom water cooling tube will construct
Finish.
Explanation：The band of furnace shell the 1st needs partial demolition bustle pipe hanging beam due to whole circle installation, influences the stability of bustle pipe, therefore real
It is changed to assemble in furnace bottom burst in the construction of border and installs.
The 7th, 1-9 layers of cooling wall is installed.
The 8th, layered platform 4 is set at the 9th layer of cooling wall height and position, and 4 times setting hoisting slings of layered platform facilitate stove
Interior refractory material laying construction.
9th, upside-down installation method layered platform upper furnace shell is utilized.
Explanation：Furnace throat band can enter in the case of the ring beam of weighing pot support beam bottom is not assembled from furnace roof, without falling
Dress, therefore cooling wall of the furnace throat band more than 9 layers is just filled after installing in practice of construction, the method accelerates being installed into for cooling wall
Degree.
10th, 10-15 layers of cooling wall and steel brick enter in stove from furnace roof installs, wherein the 9th layer of cooling wall is setting layered platform
8 pieces of cooling walls of position of the fulcrum are not installed.
11st, layered platform 4 is removed, is installed at the position of the fulcrum of layered platform 4 after cooling wall, layering flat 4 is located on steel brick
It is used as protecting platform.
12nd, installed on protecting platform under roof support ring, hexsteel, delivery line and furnace top equipment, protecting platform stove after
Continuous construction, removes temporary facility, clearing furnace in stove after finishing.
The 13rd, distributor chute, furnace top equipment debugging are installed.
14th, whole temporary facilities are removed, recovers the component removed temporarily during construction, handles handing over procedure in kind, hand over owner
Baker.
Embodiment 3
The method be the same as Example 1 of the present embodiment, its step is as follows：
The 1st, support is set on cast house platform, balladeur train 1 is set in support, balladeur train 1 is made up of two parts, furnace body frame
It is inside movable, is fixed outside furnace body frame, two parts joint is connected with.
2nd, ground is assembled into the last furnace shell of whole circle and hangs on balladeur train 1 by 250t crawler crane loop wheel machines, is drawn by elevator 3 to body of heater
In framework.
3rd, furnace shell is sling using the elevator 3 being located on furnace top frame platform, furnace shell of the balladeur train below 1 is installed.
The 4th, 9th layer of cooling wall be installed to the position lower than furnace shell, layered platform 4 is set, and layered platform 4 divides into stove construction
Suspender, the resistance to material of body of heater starts construction.
5th, the upper furnace shell II5 of layered platform 4 from top to bottom enters in furnace body frame from the position of balladeur train 1, hangs up properly safely.
6th, furnace shell I2 enters in furnace body frame, is docked with the bottom furnace shell installed.
7th, furnace shell II5 is from bottom to top installed.
8th, furnace shell III7 is installed after the cooling wall for installing the top of layered platform 4, steel brick is installed.
9th, the landing beam that layered platform 4 is supported on furnace shell is removed, mounting platform Liang Weizhichu 8 pieces of cooling walls will be layered
Platform 4 falls makees protecting platform on steel brick.
10th, stratified operation is continued above and below protecting platform.
Schematical above that the present invention and embodiments thereof are described, the description does not have restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, are designed and the technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (7)
1. a kind of blast furnace overhaul method, its step is：
A, the setting balladeur train (1) on blast furnace；
B, dismounting furnace shell and cooling wall, every layer of furnace shell piecemeal are removed together with cooling wall；
The interspersed progress of stove is taken off in C, the furnace shell and cooling wall for transporting from different outlets dismounting, stove, accelerates dismounting progress；
Layered platform (4), stratified operation are set on D, the furnace shell installed below balladeur train (1)；
E, the lifting device built by laying bricks or stones under layered platform (4) in setting stove；The upside-down mounting furnace shell on layered platform (4)；
After F, furnace shell are installed, the cooling wall and steel brick on layered platform (4) top are installed, layered platform (4) place is finally installed and put down
Platform beam takes the cooling wall of cooling wall position；
Secondary stratification operation in G, stove, removes layered platform (4), then resets layered platform (4) on steel brick, flat in layering
The installation of gas export control, roof support ring and furnace top equipment is carried out on platform (4).
2. a kind of blast furnace overhaul method according to claim 1, it is characterised in that if bustle pipe in overhaul more
Change, balladeur train (1), which is arranged on, to tap a blast furnace in factory building, need to only remove the tuyere platform that balladeur train (1) side is set.
3. a kind of blast furnace overhaul method according to claim 1, it is characterised in that if bustle pipe in overhaul not more
Change, balladeur train (1) is arranged on the framework in the middle part of body of heater.
4. a kind of blast furnace overhaul method according to claim 1, it is characterised in that the suspension hook driven a vehicle using furnace roof,
Blocked breaking is carried out by elevating capacity to furnace shell and cooling wall to remove, i.e., every layer cooling wall piecemeal is removed together with furnace shell.
5. a kind of blast furnace overhaul method according to claim 1, it is characterised in that furnace shell and cooling that blocked breaking is removed
Ground is fallen into from furnace roof, during dismounting of the wall position above tuyere zone when the furnace shell of tuyere zone and following part is removed with cooling wall
Transported from cast house；Stove can be taken off in stove when furnace top equipment is removed, once after the dismounting of furnace roof water cooling gear-box, daytime concentrates one's energy
Furnace shell is removed, the progress of stove night is taken off, has little time if taking off stove, when furnace shell is removed to tuyere zone, stove is taken off and is removed with furnace shell
It is synchronous.
6. a kind of blast furnace overhaul method according to claim 1, it is characterised in that when furnace shell and cooling wall are attached to
When the upper surface of furnace shell is slightly below balladeur train (1) lower surface that need to be set, layered platform (4), layered platform (4) are set on furnace shell
8 points are divided to be supported on furnace shell.
7. a kind of blast furnace overhaul method according to claim 1, it is characterised in that the method for upside-down mounting is, by upper and
It is lower to be first hung on the beam of furnace body frame platform (6), then welded by the order centering of formal dress.
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| CN201510691477.3A CN105177202B (en) | 2015-10-22 | 2015-10-22 | A kind of blast furnace overhaul method |
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| CN201510691477.3A CN105177202B (en) | 2015-10-22 | 2015-10-22 | A kind of blast furnace overhaul method |
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| CN105177202B true CN105177202B (en) | 2017-08-08 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107779530A (en) * | 2016-08-26 | 2018-03-09 | 上海宝冶集团有限公司 | The installation method of last furnace shell |
| CN106755680B (en) * | 2017-01-12 | 2018-09-18 | 马钢集团设计研究院有限责任公司 | A kind of middle-size and small-size heavy wall blast furnace furnace wall remodeling method and its structure |
| CN109097516A (en) * | 2018-09-29 | 2018-12-28 | 中国冶集团有限公司 | The construction method of blast furnace overhaul engineering replacement last furnace shell |
| CN109735671A (en) * | 2019-02-28 | 2019-05-10 | 上海二十冶建设有限公司 | Three layers of operational method of one are dismounted in the furnace of medium and small blast furnace |
| CN110592300A (en) * | 2019-08-29 | 2019-12-20 | 上海宝冶冶金工程有限公司 | Conveying system and method for blast furnace shell |
| CN114480758B (en) * | 2021-12-23 | 2023-07-14 | 中国华冶科工集团有限公司 | Modular dismantling method for blast furnace frame |
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| CN1222579A (en) * | 1998-12-02 | 1999-07-14 | 酒泉钢铁(集团)有限责任公司 | Moving Technology and Devices for Blast Furnace Overhaul |
| CN101688256A (en) * | 2007-08-09 | 2010-03-31 | 新日铁工程技术株式会社 | Ring block conveying apparatus, and remedy method for blast furnace casing |
| CN101812558A (en) * | 2010-04-02 | 2010-08-25 | 攀钢集团冶金工程技术有限公司 | Construction method for replacing intermediate furnace body of blast furnace |
| CN103266192A (en) * | 2013-05-17 | 2013-08-28 | 中国十七冶集团有限公司 | Hoisting method for replacing cooling wall in overhauling of blast furnace |
| CN203247279U (en) * | 2013-05-07 | 2013-10-23 | 中国十七冶集团有限公司 | Gliding platform for mounting furnace shell in major overhaul of blast furnace |
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2015
- 2015-10-22 CN CN201510691477.3A patent/CN105177202B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1222579A (en) * | 1998-12-02 | 1999-07-14 | 酒泉钢铁(集团)有限责任公司 | Moving Technology and Devices for Blast Furnace Overhaul |
| CN101688256A (en) * | 2007-08-09 | 2010-03-31 | 新日铁工程技术株式会社 | Ring block conveying apparatus, and remedy method for blast furnace casing |
| CN101812558A (en) * | 2010-04-02 | 2010-08-25 | 攀钢集团冶金工程技术有限公司 | Construction method for replacing intermediate furnace body of blast furnace |
| CN203247279U (en) * | 2013-05-07 | 2013-10-23 | 中国十七冶集团有限公司 | Gliding platform for mounting furnace shell in major overhaul of blast furnace |
| CN103266192A (en) * | 2013-05-17 | 2013-08-28 | 中国十七冶集团有限公司 | Hoisting method for replacing cooling wall in overhauling of blast furnace |
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| CN105177202A (en) | 2015-12-23 |
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