CN106480250A - The assembly and disassembly methods of blast branch pipe of blast furnace equipment - Google Patents
The assembly and disassembly methods of blast branch pipe of blast furnace equipment Download PDFInfo
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- CN106480250A CN106480250A CN201510547935.6A CN201510547935A CN106480250A CN 106480250 A CN106480250 A CN 106480250A CN 201510547935 A CN201510547935 A CN 201510547935A CN 106480250 A CN106480250 A CN 106480250A
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Abstract
The present invention provides a kind of assembly and disassembly methods of blast branch pipe of blast furnace equipment, during belly pipe partial dismantling, removes bottom pull bar, belly pipe bearing pin, belly pipe successively, and is placed in predeterminable area to after all belly pipe numberings removed；Air port part and middle set are partly all dismounted using vehicular hydraulic drawbench, during the partial dismantling of air port, after gib head stretches into the through hole in the middle of air port, strut pull bar and open gib head, make gib head hook air port head, air port is pulled out by drawing cylinder action；During middle set partial dismantling, after gib head passes through middle set end face, strut pull bar and open gib head, make gib head catch on middle set end face, drawing cylinder action makes middle set and big inner room produce and loosen, and is carried away middle set by fork truck.The efficiency of construction that the present invention can lift the dismounting of blast branch pipe of blast furnace equipment, change, reduces blast furnace because overhauling construction and the time of damping down, also improves the installation quality of belly pipe, air port and middle complete equipment, it is to avoid blowpipe equipment sealing surface leaks simultaneously.
Description
Technical field
The present invention relates to the plant maintenance of large blast furnace；
More particularly, to a kind of assembly and disassembly methods of blast branch pipe of blast furnace equipment.
Background technology
Refering to shown in Fig. 1, blast branch pipe of blast furnace equipment is mainly made up of blow-through tube portion, air port part, middle set part etc., main
Acting on is to be blown into inside blast furnace by the hot blast in bustle pipe, and general large blast furnace has 40 sets about blowpipe equipment works simultaneously
Make.Up to 1400 DEG C of the hot blast temperature sent in bustle pipe, first passes through blow-through tube portion, then is partially into height by air port
Furnace body, under the operating mode of long-term continuous high temperature, air port part and middle set part, it is possible that the situation of scaling loss, now just need
The air port part of blast furnace, middle set part are carried out changing construction.
Change air port part and middle set part, blow-through tube portion, complex procedures must be first removed in construction.And due to air port part,
The equipment self-weight of middle set part is big, locus are little, and air port part is extremely difficult with the Demolition Construction of middle set part.Air port part
All sealing is contacted by face between blow-through tube portion, middle set part, installation quality has high demands.
Content of the invention
The technical problem to be solved is aiming at the air port part of current blast furnace, the replacing constructional difficulties of middle set part,
There is provided a kind of assembly and disassembly methods of blast branch pipe of blast furnace equipment, in order to the above-mentioned difficult problem overcoming prior art to exist.
For achieving the above object and other related purposes, the present invention provides a kind of assembly and disassembly methods of blast branch pipe of blast furnace equipment, described
Blast branch pipe of blast furnace equipment at least includes blow-through tube portion, air port part and middle set part, during belly pipe partial dismantling, tears open successively
Except bottom pull bar, belly pipe bearing pin, belly pipe, and it is placed in predeterminable area to after all belly pipe numberings removed；
Air port part and middle set are partly all dismounted using vehicular hydraulic drawbench, and described vehicular hydraulic drawbench includes a base,
Described base is provided with a slide block, and described slide block is slidably connected with described base, and described slide block is connected with drawing oil cylinder, described draws
Pull out oil cylinder to be fixed on described base, the front end of described slide block is hinged with two pull bars with eave tile, and described slide block is provided with a support
Open oil cylinder, described strut oil cylinder and strut bar with one be connected, the described bar that struts is located between described two pull bars, and the described bar that struts leads to
Cross two poles to be connected with the middle part of described two pull bars respectively, the two ends of described pole are hinged with described bar, the pull bar of strutting respectively,
The front end of described base forms a bracing frame；
During the partial dismantling of air port, after gib head stretches into the through hole in the middle of air port, strut pull bar and open gib head, make gib head hook air port head
Portion, air port is pulled out by drawing cylinder action；
During middle set partial dismantling, after gib head passes through middle set end face, strut pull bar and open gib head, make gib head catch on middle set end face, draw
Pulling out cylinder action makes middle set loosen with big inner room generation, is carried away middle set by fork truck.
Further, remove belly pipe bearing pin before, by fork truck fork arm pass through belly pipe below baffle plate in the hole, and on lift to stress
Position.
Further, the adpting flange between each several part all carries out compression installation using flange face auxiliary mould, and described flange face is auxiliary
Assistant engineer's dress includes the hydraulic clamp clamp of at least two C-shapeds, and hydraulic clamp clamp are arranged on the upper end of a support bar, support bar
Lower end be connected with a hoistable platform by omnidirectional mechanism, hydraulic clamp clamp be respectively arranged at two ends with fixing backing plate and clamping cylinder,
Described clamping cylinder is connected with Hydraulic Station.
Further, using bore gauge, the gap between flange face is measured, spacing is between 6 ± 1mm.
Further, it is provided with gasket seal between flange face, measure pad outer rim to the distance at flange face edge using Steel Ruler,
Distance is between 110 ± 2.5mm or 60 ± 2.5mm.
Further, flange face gap and pads placement all detect qualified after, leak detection of fetching water is carried out to sealing surface.
Further, also include the cleaning of the sealing surface to each several part, using edge of a knife cloth by sealing surface wiped clean, to sealing surface
Depression in the surface or projection, are smoothed using sand papering.
Further, when air port part is installed, air port is hit 2-3 minute using blow cylinder and is carried out pretension, and is surveyed using clearance gauge
Whether amount air port sealing surface gap is qualified, if air port installation is not in place, is hit again, until qualified.
Further, when middle set part is installed, it is welded and fixed with the band iron of thickness 6mm between middle set and big set.
By above technical scheme, the present invention has following technique effect compared to prior art：The present invention can lift blast furnace and send
The efficiency of construction that wind props up tube apparatus dismounting, changes, reduces blast furnace because overhauling construction and the time of damping down, also improves blow-through simultaneously
The installation quality of pipe, air port and middle complete equipment, it is to avoid blowpipe equipment sealing surface leaks.
Brief description
Fig. 1 is shown as the structural representation of blowpipe equipment；
Fig. 2 is shown as method of the present invention flow chart；
What Fig. 3 was shown as blow-through tube portion puts predeterminable area schematic diagram；
Fig. 4 is shown as the schematic view of the mounting position of pad；
Fig. 5 is shown as the structural representation of vehicular hydraulic drawbench；
Fig. 6 is shown as the structural representation of flange face auxiliary mould.
Component label instructions：
1 blow-through tube portion
Part is covered in 2
3 air port parts
4 cover greatly
Specific embodiment
Hereinafter embodiments of the present invention are illustrated by particular specific embodiment, those skilled in the art can be taken off by this specification
The content of dew understands other advantages and effect of the present invention easily.
Refer to Fig. 1 to Fig. 6.It should be clear that structure depicted in this specification institute accompanying drawings, ratio, size etc., all only in order to
Content disclosed in cooperation description, so that those skilled in the art understands and reads, being not limited to the present invention can implement
Qualificationss, therefore do not have technical essential meaning, the adjustment of the modification of any structure, the change of proportionate relationship or size,
Under not affecting present invention effect that can be generated by and the purpose that can reach, all should still fall in disclosed technology contents
Obtain in the range of covering.Meanwhile, in this specification cited as " on ", D score, "left", "right", " in
Between " and " one " etc. term, be merely convenient to describe understands, and is not used to limit the enforceable scope of the present invention, its phase
Relation is altered or modified, under no essence change technology contents, when being also considered as the enforceable category of the present invention.
Refering to shown in Fig. 2, it is described in further detail below in conjunction with method of the present invention flow chart：
The replacing of blow-through tube portion：
During belly pipe partial dismantling, need to remove bottom pull bar, belly pipe bearing pin, belly pipe successively.
Bottom pull bar one end is connected with blast-furnace body by hinge, and pull bar can be rotated with around hinge.The other end passes through screw-pressing
Mode fixes belly pipe.When removing bottom railing, by handle rotate counterclockwise, after screw bolt loosening, pull bar is taken off.Pull bar tail
Portion is hexagon bolt, can coordinate the sleeve-board construction of 36mm using pneumatic impact spanner, lift work efficiency.
Before starting to remove belly pipe bearing pin, first that fork truck is in place.Fork truck fork arm passes through the baffle plate in the hole below belly pipe, and upper lift
To forced position.After fork truck is in place, start to remove belly pipe bearing pin.Every belly pipe passes through lock clasp flange face.During construction,
Hit wedge using hand hammer and remove belly pipe flange face bearing pin, for cannot be cut off using gas cutting by hitting the bearing pin removed.Tear open
Under bearing pin, wedge is placed in Special collecting box.
When belly pipe is removed, first disconnect cooling water pipe.Cooling water pipe is located at blow-through tube head, passes through quickly to connect using metal hose
Head connects.Before removing cooling water pipe, confirm that cooling water valve has been switched off.Metal hose must be broken after closing by cooling water immediately
Open, and using fork truck, belly pipe is transported burner hearth, it may occur that steam after otherwise remaining cooling water is heated in belly pipe
Spray the danger hurted sb.'s feelings.Then have bad luck belly pipe using fork truck.During periodical repair, need all to remove belly pipe, and compiled
Number, determine the need for changing according to inspection result.It is placed in regulation refering to the belly pipe shown in Fig. 3, pulled down as requested
Predeterminable area, not affect being normally carried out of construction.
It is provided with gasket seal, when changing pad, first to short above belly pipe head seal face, flange face and belly pipe between flange
Pipe flange face is cleared up, and the old pad of flange face surfaces stick, fluid sealant, impurity etc. are removed, and flange face surface smooths no
The defects such as pit, projection, burr.The groove installing pad is had on belly pipe flange face, gasket seal must be placed in groove
Interior, and fluid sealant is smeared on pad.Pad has two kinds, and inner ring is asbestos washer, and outer ring is metal jacketed gasket, wherein stone
Cotton pad piece does not need to smear fluid sealant.For avoiding fluid sealant to harden, sealing effectiveness is led to decline, smearing sealing glue process should not mistake
Early, should control in a pre-installation within 15 minutes.
Before belly pipe returns dress, to the belly pipe numbering, the cleaning situation in head seal face and the afterbody flange face pad that prepare installation
Installation situation is confirmed.When returning dress, using forklift transport belly pipe, by blow-through tube head be aligned air port contact surface, then will be straight
Lift on blowpipe afterbody flange face, make upper and lower flange face pin shaft hole be aligned, subsequently just can be with mounting pin axle.
Bearing pin is installed, and after being directed at the pin shaft hole of belly pipe flange face using fork truck, bearing pin is penetrated in the hole, inserts wedge, enter
Row pretension.Bearing pin, by the way of diagonal installation, after installing all bearing pins, measures pad to flange face edge using Steel Ruler
Distance.Refering to shown in Fig. 4, belly pipe pads placement criterion of acceptability is：A=110 ± 2.5mm, B=60 ± 2.5mm.Detection is closed
After lattice, it is subsequently mounted pull bar.
Pull bar is installed, and the effect of pull bar is the contact situation of the sealing surface between adjustment blow-through tube head and air port, and pull bar is installed
After the completion of, first carry out pretension, then fork truck is withdrawn.Meanwhile, urgent, flange face stress is carried out using diagonal order to wedge
Uniformly.
Installation quality detects：Carry out flange face gap detection first, using bore gauge, belly pipe upper and lower flange face gap is surveyed
Amount, spacing should be between 6 ± 1mm.As being unsatisfactory for this standard, it is adjusted using flange face auxiliary mould.Refering to shown in Fig. 6,
Described flange face auxiliary mould includes the hydraulic clamp clamp of at least two C-shapeds, and hydraulic clamp clamp are arranged on a support bar
Upper end, the lower end of support bar is connected with a hoistable platform by omnidirectional mechanism, and pad is fixed in being respectively arranged at two ends with of hydraulic clamp clamp
Plate and clamping cylinder, described clamping cylinder is connected with Hydraulic Station.The clamp of flange face butt joint auxiliary device are blocked upper flange surface,
Open Hydraulic Station, jacking cylinder holds out against simultaneously, and belly pipe flange face gap is adjusted to critical field.Each hydraulic clamp card
Pincers are all arranged on the upper end of a support bar, connect hydraulic pressure grip wrench and support bar with a movable spring.Described movable bullet
Spring is the no guide spring having certain bending stiffness, can bend so that clamping device operationally allows to different directions
Work surface has certain angle, so that movable spring can be individually tilted in allowed band, so that elevating mechanism and flange docking
The chassis of auxiliary device still keeps level, so also allow for shrink, adjustment support bar more stable in order to work.Lifting is flat
The bottom of platform is provided with hoist cylinder, and hoist cylinder is connected with Hydraulic Station and is arranged on the front of Hydraulic Station, and hoist cylinder promotes and rises descending branch
The rough adjustment of flange butt joint auxiliary device height realized by hoistable platform on frame.
The replacing of air port part：
Push rod is removed, and air port push rod is located in the big-and-middle set in air port, and one end withstands on air port six-o ' clock position, and the other end passes through screw top
Tightly.Before removing push rod, first fastening screw is unclamped, you can take out push rod.
Air port drawing, vehicular hydraulic drawbench is provided simultaneously with vehicle-mounted and hydraulic drawing function, refering to shown in Fig. 5, vehicular
Hydraulic drawbench includes a base, and described base is provided with a slide block, and described slide block is slidably connected with described base, described slide block
It is connected with drawing oil cylinder, described drawing oil cylinder is fixed on described base, the front end of described slide block is cut with scissors with two pull bars with eave tile
Connect, described slide block is provided with one and struts oil cylinder, described strut oil cylinder and strut bar with one be connected, described strut bar be located at described two
Between pull bar, the described bar that struts is connected with the middle part of described two pull bars respectively by two poles, and the two ends of described pole are respectively
Hinged with described bar, the pull bar of strutting, the front end of described base forms a bracing frame.First air port drawbench gib head is aligned in air port
Air port drawbench is subsequently slowly driven towards tuyere position by the through hole of the heart, when gib head is soon close to air port, adjustment gib head height,
Gib head is enable smoothly to inject the through hole in the middle of air port.After gib head is fully inserted into the through hole in the middle of air port, gib head is opened in lifting,
Gib head is made to hook air port head.After air port drawbench is in place, start fitting machine pull-out air port.Air port drawbench is by hydraulic coupling
Pull-out air port, in fact it could happen that the phenomenon of gib head slippage during the pull-out of air port, now it is accomplished by readjusting gib head position.
It is necessary to first close air port cooling water valve after air port pulls loose, and disconnect the joint of air port cooling water flexible pipe.Cooling water flexible pipe joint
Connected by snap joint it is necessary to first disconnect water inlet pipe, then disconnect return pipe.Subsequently using air port drawbench, air port is drawn completely
Go out.
Air port is had bad luck, and using the electric block around stove, the old air port pulling out is placed in the region that tuyere platform is specified, and generally needs
Cooling water pipe with regard to air port is pulled down, and is installed on fresh wind port the use that reuses.When installing air port cooling water pipe, note rubber
The installation of leather packing ring must put in place, prevents cooling water pipe leak.
Air port sealing surface confirms, the form that air port sealing surface is contacted with copper face for copper, before fresh wind port prepares to install, needs to wind
Mouth sealing surface is cleared up and is confirmed.When tuyere body sealing surface confirms, first using edge of a knife cloth, tuyere body sealing surface is wiped
Only, the defect such as the pit deeper to sealing surface surface, projection, burr, is smoothed using sand papering.Middle set inner sealing surface is really
Recognize and carry out after the completion of the stifled mud of production operation personnel, clear thorax, equally use edge of a knife cloth wiped clean sealing surface surface it is ensured that nothing is big
The impurity such as granule slag.
Air port loads, and fresh wind port is loaded into position during loading, noting cooling water pipe on the fitting machine of air port.Water inlet pipe is 12
O'clock direction, return pipe is in 9 o'clock direction, and will pass in and out water tube hose colligation firmly with iron wire, prevents extruding in installation process
Water pipe.
Air port is installed, and chain-drive section be aligned Zhong Tao center is installed in air port, air port fitting machine subsequently slowly drives towards the position of air port installation
Put, when air port is soon close to middle set, the height of adjustment fresh wind port, in so that fresh wind port is aligned, the center of set, can smoothly load
In middle set.Meanwhile, air port installation chain-drive section is locked by bearing pin with furnace shell, manipulation air port fitting machine, slowly air port is pushed
To installation site.Connect cooling water pipe.After the cooling water pipe in air port is connected, open cooling water valve immediately, so that cooling water is followed
Ring, prevents air port from burning out.Meanwhile, confirm that cooling water water inlet pipe and water outlet pipe connects correctly, joint no drainage.Cooling water starts
After circulation, start air port is installed.Air port fitting machine holds out against air port by the way of blow cylinder strike, first connects compressed air hose,
After air port reaches installation site, open compressed air, hit 2-3 minute.The position that subsequently measurement air port is installed, and use
Whether clearance gauge measurement air port sealing surface gap is qualified, if air port installation is not in place, is again turned on compressed air and is hit, directly
Extremely qualified.
Air port push rod is installed, and after air port is installed in place, push rod is put into installation site, and afterbody bolt is held out against.
Middle set part is changed
Puller bolt is removed, and middle set puller bolt is evenly distributed on the big set inwall in middle set outside, and its effect is to prevent from dismantling air port
When in set loosen.Using burning torch, it is cut from root.
Pressing plate cuts off, and for the sealing of set and big inner room in ensureing, needs middle set and big set inwall typically in installing after covering
Between with steel plate welding and full weld, using burning torch, the steel plate originally being welded is cut off.
After vehicular hydraulic drawbench is in place, it is mounted to fork truck, fork truck fork arm passes through middle set drawbench bottom baffle in the hole,
And on lift to forced position.Start fork truck to middle set position, adjustment pull bar center is basically identical with Zhong Tao center, little after centering
Car is pinned with blast-furnace body.Fluid pressure drive device makes pull bar stretch into middle set (now pull bar is in contraction state), treats that pull bar gib head is stretched
Going out middle set end face rear distraction pull bar makes pull bar gib head catch on middle set end face.Hydraulic means drives pull bar so that dolly is propped up toward post-tensioning simultaneously
Frame is adjacent to big set flange face, and hydraulic means pressure gradually rises, just so that middle set is produced with big set after reaching certain pulling force
Loosen, that is, middle set " pulling loose ".After middle set " pulling loose ", jacket water pipe in disconnection, carried using chain block and blast furnace
Electric block in cover and hang out to fork truck, by fork truck, middle set is carried away
Remove cooling water pipe.Cooling water pipe is located at middle set head, by hose connection.Before removing cooling water pipe, contact produces really
Recognize cooling water valve to have been switched off.Middle set is had bad luck.During periodical repair, the middle set under removing needs to put according to fixationization management requirement
In the position of regulation, and do not affect being normally carried out of other constructions.
Middle set loads, and using electric block around stove, newly middle set is lifted on middle set fitting machine, then by fitting machine Integral lifting
To installation site.Ensure that fitting machine center is basically identical with Zhong Tao center, promote fitting machine dolly after centering, middle set is seated to
Installation site, finally exits fitting machine.
Middle set install, by the cooling water pipe removed before recover connect, and in time contact production open cooling water valve it is ensured that in
Cooling water Efficient Cycle in set.
Set, big set faying face gap in adjustment.After middle jacket water pipe connects, again fitting machine is pushed into installation site, then
Fitting machine leading portion is connected with blast-furnace body pinning, starts hydraulic means, middle set is slowly compacted to gap and meets requirement,
Backed off after random fitting machine.Fill in that faying face depth not can exceed that faying face with 0.1mm clearance gauge 50%.
Middle set puller bolt and pressing plate are installed, after middle set is installed in place, middle set is solid with the welding of thickness t=6mm band iron with big inner room
Fixed.Welding slag, the full uniform No leakage of weld seam is removed after welding.Puller bolt recovers.After pressing plate welding finishes, middle set is pushed up
Tight bolt recovers, and puller bolt is fastened to till withstanding middle set.
Above-described embodiment only principle of the illustrative present invention and its effect, not for the restriction present invention.Any it is familiar with this skill
The personage of art all can carry out modifications and changes without prejudice under the spirit and the scope of the present invention to above-described embodiment.Therefore, such as
Those of ordinary skill in the art completed under without departing from disclosed spirit and technological thought all etc.
Effect modifications and changes, must be covered by the claim of the present invention.
Claims (9)
1. a kind of assembly and disassembly methods of blast branch pipe of blast furnace equipment, described blast branch pipe of blast furnace equipment at least includes blow-through tube portion, air port
Part and middle set part it is characterised in that：
During belly pipe partial dismantling, remove bottom pull bar, belly pipe bearing pin, belly pipe successively, and all straight to remove
It is placed in predeterminable area after blowpipe numbering；
Air port part and middle set are partly all dismounted using vehicular hydraulic drawbench, and described vehicular hydraulic drawbench includes one
Base, described base is provided with a slide block, and described slide block is slidably connected with described base, and described slide block is with drawing oil cylinder even
Connect, described drawing oil cylinder is fixed on described base, the front end of described slide block is hinged with two pull bars with eave tile, described
Slide block is provided with one and struts oil cylinder, described strut oil cylinder and strut bar with one be connected, the described bar that struts is located at described two pull bars
Between, the described bar that struts is connected with the middle part of described two pull bars respectively by two poles, and the two ends of described pole are respectively
Hinged with described bar, the pull bar of strutting, the front end of described base forms a bracing frame；
During the partial dismantling of air port, after gib head stretches into the through hole in the middle of air port, strut pull bar and open gib head, make gib head hook wind
Oral portion, air port is pulled out by drawing cylinder action；
During middle set partial dismantling, after gib head passes through middle set end face, strut pull bar and open gib head, make gib head catch on middle set end face,
It is loosening that drawing cylinder action makes middle set and big inner room produce, and is carried away middle set by fork truck.
2. before the assembly and disassembly methods of blast branch pipe of blast furnace equipment according to claim 1 are it is characterised in that remove belly pipe bearing pin,
By fork truck fork arm pass through belly pipe below baffle plate in the hole, and on lift to forced position.
3. the assembly and disassembly methods of blast branch pipe of blast furnace equipment according to claim 1 are it is characterised in that connection between each several part
Flange all carries out compression using flange face auxiliary mould and installs, and described flange face auxiliary mould includes the liquid of at least two C-shapeds
Pressure grip wrench, hydraulic clamp clamp are arranged on the upper end of a support bar, and omnidirectional mechanism and is passed through in the lower end of support bar
Hoistable platform connect, hydraulic clamp clamp be respectively arranged at two ends with fixing backing plate and clamping cylinder, described clamping cylinder and liquid
Pressure station is connected.
4. the assembly and disassembly methods of blast branch pipe of blast furnace equipment according to claim 3 are it is characterised in that use bore gauge to flange
Gap between face measures, and spacing is between 6 ± 1mm.
5. the assembly and disassembly methods of blast branch pipe of blast furnace equipment according to claim 4 are it is characterised in that be provided with close between flange face
Gasket, measures pad outer rim to the distance at flange face edge using Steel Ruler, distance is in 110 ± 2.5mm or 60 ± 2.5mm
Between.
6. the assembly and disassembly methods of blast branch pipe of blast furnace equipment according to claim 5 are it is characterised in that flange face gap and pad
Position all detect qualified after, leak detection of fetching water is carried out to sealing surface.
7. the assembly and disassembly methods of blast branch pipe of blast furnace equipment according to claim 1 are it is characterised in that also include to each several part
The cleaning of sealing surface, using edge of a knife cloth by sealing surface wiped clean, to sealing surface depression in the surface or projection, using sand paper
Polishing is smooth.
8. blast branch pipe of blast furnace equipment according to claim 1 assembly and disassembly methods it is characterised in that air port part install when,
Whether air port is hit 2-3 minute using blow cylinder and is carried out pretension, and qualified using clearance gauge measurement air port sealing surface gap,
If air port installation is not in place, hit again, until qualified.
9. blast branch pipe of blast furnace equipment according to claim 1 assembly and disassembly methods it is characterised in that middle set part install when,
It is welded and fixed with the band iron of thickness 6mm between middle set and big set.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547935.6A CN106480250B (en) | 2015-08-31 | 2015-08-31 | The assembly and disassembly methods of blast branch pipe of blast furnace equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547935.6A CN106480250B (en) | 2015-08-31 | 2015-08-31 | The assembly and disassembly methods of blast branch pipe of blast furnace equipment |
Publications (2)
| Publication Number | Publication Date |
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| CN106480250A true CN106480250A (en) | 2017-03-08 |
| CN106480250B CN106480250B (en) | 2018-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510547935.6A Active CN106480250B (en) | 2015-08-31 | 2015-08-31 | The assembly and disassembly methods of blast branch pipe of blast furnace equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643769A (en) * | 2019-10-09 | 2020-01-03 | 中冶宝钢技术服务有限公司 | Blast furnace air supply branch pipe belly pipe inclined pin pressing device and pressing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010053747A (en) * | 1999-12-01 | 2001-07-02 | 이구택 | Dismantlement apparatus of tuyere in the blast furnace |
| CN201793604U (en) * | 2010-09-21 | 2011-04-13 | 中冶宝钢技术服务有限公司 | Large-scale blast furnace mid-sleeve drawing device |
| CN202846128U (en) * | 2012-08-30 | 2013-04-03 | 中冶宝钢技术服务有限公司 | Flange docking auxiliary device |
-
2015
- 2015-08-31 CN CN201510547935.6A patent/CN106480250B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010053747A (en) * | 1999-12-01 | 2001-07-02 | 이구택 | Dismantlement apparatus of tuyere in the blast furnace |
| CN201793604U (en) * | 2010-09-21 | 2011-04-13 | 中冶宝钢技术服务有限公司 | Large-scale blast furnace mid-sleeve drawing device |
| CN202846128U (en) * | 2012-08-30 | 2013-04-03 | 中冶宝钢技术服务有限公司 | Flange docking auxiliary device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643769A (en) * | 2019-10-09 | 2020-01-03 | 中冶宝钢技术服务有限公司 | Blast furnace air supply branch pipe belly pipe inclined pin pressing device and pressing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106480250B (en) | 2018-08-28 |
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