CN107699650A - A kind of installation method of blast furnace cooling stave - Google Patents
A kind of installation method of blast furnace cooling stave Download PDFInfo
- Publication number
- CN107699650A CN107699650A CN201711218926.8A CN201711218926A CN107699650A CN 107699650 A CN107699650 A CN 107699650A CN 201711218926 A CN201711218926 A CN 201711218926A CN 107699650 A CN107699650 A CN 107699650A
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- CN
- China
- Prior art keywords
- cooling wall
- cooling
- old
- new
- water pipe
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
Abstract
The invention discloses a kind of installation method of blast furnace cooling stave, including old cooling wall is removed and the installation of new cooling wall, and old cooling wall, which is removed, to be comprised the following steps：Furnace roof opens big square hole, and distributor chute is reequiped；Connecting leg outside old cooling wall is removed；The setting of hoist engine；Old cooling wall water pipe reeves；Erecting and welding is used for the gate stand for ejecting old cooling wall；Jack ejects cooling wall；Center slider gib head is hung；Center slider coordinates with hoist engine, and old cooling wall is hung out from big square hole；Cleaning；New cooling wall installation comprises the following steps：The new hot face of cooling wall sets suspension centre and hot face is sprayed；New cooling wall water pipe reeves；New cooling wall water pipe extraction cable wire end is connected with hoist engine fag end, coordinates installation dropping place using two hoist engines and center slider；Adjust new cooling wall mounting technique parameter；Cooling wall is fixed, and completes installation.Present invention reduces maintenance duration, reduces cost, and blast furnace is resumed production and provides advantage.
Description
Technical field
The present invention relates to a kind of installation method of blast furnace cooling stave, and in particular to one kind be applied to annual overhaul or in change when repairing
The installation method of a small amount of cooling wall, belongs to blast-furnace technique field.
Background technology
Blast furnace cooling stave is to avoid the key equipment that stove skin is impacted by blast furnace heat load during blast fumance is smelted.Once peace
Dress, need to use generation furnace life, but by high temperature erosion and the erosive wear of furnace charge, indivedual cooling walls often premature deterioration, lose
Cooling effect, influences that blast furnace is normal, safety in production.
Faced with this situation, it is common practice to using the chance of intermediate repair, stockline dropping blowing out, maintenance are carried out to blast furnace
Personnel enter in stove, set up movable hanging scaffold, and local replacing is carried out to cooling wall, then dig cupola well and recover blast fumance.
This technology can realize the local replacing of cooling wall, but the time between overhauls(TBO) is grown, and cost is higher, and blast furnace throws Recovery
It is slower.
The content of the invention
Instant invention overcomes the defects of prior art, there is provided a kind of installation method of blast furnace cooling stave, it is possible to achieve utilizes
Blast furnace annual overhaul chance（The general 5-6 days time）Local replacing is carried out to cooling wall.
What the present invention was realized in：
A kind of installation method of blast furnace cooling stave, including old cooling wall is removed and the installation of new cooling wall,
Old cooling wall, which is removed, to be comprised the following steps：
（1）, furnace roof open big square hole, remove valve box and central throat tube, distributor chute reequiped, pacify on distributor chute top
Dress changed course pulley, installs fixed pulley in distributor chute bottom, by the use of batch can as main suspension centre, installs main tackle pulley；
（2）, connecting leg outside old cooling wall removed, the water pipe metal for upper and lower section of cooling wall being connected with the old cooling wall is soft
Pipe connects, it is ensured that upper and lower section of cooling wall current are unimpeded, protect the cooling wall being changed without；Old cooling wall seal closure is cut, is exposed cold
But wall copper pipe and appropriate length is cut to, to facilitate very heavy ejecting force as principle；
（3）, hoist engine setting, 1#, 2# hoist engine are set in platform residing for lower nozzle on old cooling wall, furnace roof center slider
Hoist engine is arranged at the big square hole platform of furnace roof, and the fag end of 1# and 2# hoist engines is respectively led into puts down with lower nozzle level on old cooling wall
Line position is put；
（4）, old cooling wall water pipe reeves；Make draught line by two cooling waters among steel wire penetrating cooling wall with iron wire
Pipe, and fixed steel wire rope and the cooling water pipe mouth of pipe with taper holding clamp, prevent steel cable sliding；Then by 1# hoist engines and
The fag end of 2# hoist engines is connected with the steel wire rope of upper and lower ends respectively, and somewhat stress；
（5）, erecting and welding be used to eject the gate stand of old cooling wall, installation site is diagonal two cooling water pipes of old cooling wall
Outside hole；
（6）, the old cooling wall bolt of dismounting, two jack are installed respectively on gate stand, push up loose cooling wall, while 1#, 2#
Hoist engine coordinates gradually ejection cooling wall, and cooling wall is ejected；
（7）, center slider gib head hangs；Fall center slider to height is changed, rotated using distributor chute and go to eave tile more
Cooling wall direction is changed, center slider is hooked into the sling of cooling wall with cleek, crawl center slider, makes gib head stress；
（8）, center slider and 1#, 2# hoist engine coordinate, old cooling wall is hung out from big square hole, now 1#, 2# hoist engine fag end
Synchronously rise to big square hole platform；
（9）, cleaning remove old cooling wall around and its furnace shell on the inside of grouting material, stretched at cooling wall of furnace shell water pipe hole, use
Scoop, chisel clean out grouting material, are ready to install new cooling wall；
New cooling wall installation comprises the following steps：
（1）, before the new cooling wall of installation, suspension centre is set in new cooling wall hot face and hot face is sprayed, while filler will be substituted
Sealing plate be installed in place；
（2）, new cooling wall water pipe reeves；Make draught line by two water pipes among the new cooling wall of steel wire penetrating with iron wire,
And fixed steel wire rope and the cooling wall water pipe mouth of pipe with taper holding clamp, prevent steel cable sliding；
（3）, new cooling wall water pipe is drawn into cable wire end be connected in advance with 1#, 2# hoist engine fag end, will be newly with furnace roof crane
Cooling wall is hung to big square hole and switched to the slider of center, and center slider gib head is hung on the hot face hanger of new cooling wall repacking；
（4）, coordinated using two hoist engines and center slider new cooling wall slowly drop to installation place, utilize 1#, 2# elevator
Machine is by new cooling wall stress dropping place；
（5）, the new cooling wall of adjustment every technical parameter, including the new cooling wall of adjustment and adjacent cooling wall gap and new cooling are installed
The cooling water pipe of wall and furnace shell gap；
（6）, cooling wall fix, after adjusting gap, fastening bolt, from stove skin external apertures be in the milk, complete the installation of cooling wall,
Realize that whole process is unmanned to operate into stove is interior.
Further scheme is：
One end of the taper holding clamp is filled in cooling water pipe and fixed, and has one to run through steel wire among taper holding clamp
The aperture of rope, after steel wire penetrating aperture, steel wire rope is compressed and consolidated by filling in one end of cooling water pipe by taper holding clamp
It is fixed.
Further scheme is：
The gate stand uses I-steel I16.
Further scheme is：
Two jack installed on the gate stand are 50t jack.
Further scheme is：
The furnace roof crane is 65T cranes.
Further scheme is：
Adjustment cooling wall is 20mm ± 5mm with adjacent cooling wall gap, and cooling water pipe is more than 8mm with furnace shell gap.
Further scheme is：
The pretightning force of the fastening bolt is 400Nm.
For safety operation, it is necessary to which stockline, which is down to, to be needed to change the lower along 0.5 meter of cooling wall before cooling wall is changed
Place, pressure grain slag control in-furnace temperature, installation burning torch are lighted charge level coal gas to control gas content.
The application to distributor chute by reequiping, it is ensured that the cooling wall that center slider lifting rope is changed closer to needs.
Cooling wall suspension centre is reequiped, the hot face of cooling wall is changed to by original upper side, and do not influence the spraying of hot face refractory matter.Add
The special taper fixture of work Locking stylet rope.Make cooling wall joint measurement cover plate and substitute original hand-stuff, it is ensured that grouting material
Do not leak.
The present invention can realize carries out local replacing on the premise of blast furnace not stockline dropping blowing out to damage cooling wall.Shorten
Maintenance duration, cost is reduced, while blast furnace is resumed production favourable condition is provided.
Brief description of the drawings
Lifting schematic diagram in Fig. 1 stoves；
The old cooling wall lifting steel wire ropes of Fig. 2 fix figure；
The old cooling walls of Fig. 3 remove schematic diagram；
The new cooling wall scheme of installations of Fig. 4.
Wherein, in Fig. 2 at A it is gate stand close-up schematic view；Illustrate at B for taper holding clamp partial enlargement
Figure.
Embodiment
The present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings.
A kind of installation method of blast furnace cooling stave, including：
1st, old cooling wall is removed
（1）, as shown in Figure 1, furnace roof opens big square hole 6, removes valve box and central throat tube, retains gear-box 2 and does not remove, to cloth
After material chute 3 is reequiped, changed course pulley 4 is installed on the top of distributor chute 3, fixed pulley 5 is installed in distributor chute bottom, utilized
Batch can 1 is used as main suspension centre, installs main tackle pulley 16.
（2）, connecting leg outside old cooling wall removed, upper and lower section of cooling wall water pipe metal being connected with the cooling wall is soft
Pipe connects, it is ensured that hypomere cooling wall current are unimpeded, protect the cooling wall being changed without.Old cooling wall seal closure is cut, that exposes is cold
But wall copper pipe and appropriate length is cut to, to facilitate very heavy ejecting force as principle.
In the present embodiment, it is specifically described exemplified by changing the old cooling wall above the 6th section of cooling wall.
（3）, hoist engine setting, 1# hoist engines 7,2# hoist engines 8 are set in platform, stove residing for lower nozzle on old cooling wall
The hoist engine of top center slider 9 is arranged at the big square hole platform of furnace roof, the fag end of 1# hoist engines 7 and 2# hoist engines 8 be respectively led into
Lower nozzle horizontal parallel position on old cooling wall.
（4）, old cooling wall water pipe reeves.Make draught line by steel wire rope 12 through two among old cooling wall with iron wire
Cooling water pipe 13, and fixed steel wire rope 12 and the mouth of pipe of cooling water pipe 13 with the taper holding clamp 11 specially processed, prevent steel
Cord is slided（As accompanying drawing 2 B at enlarged drawing）.Then by the fag end of 1# hoist engines 7 and 2# hoist engines 8 respectively with upper and lower ends
Steel wire rope is connected, and somewhat stress.
（5）, the old cooling wall in erecting and welding top gate stand 14, gate stand uses I-steel I16, and installation site is
Outside diagonal two cooling water pores.Specifically as shown in enlarged drawing at A in accompanying drawing 2.
（6）, the old cooling wall bolt of dismounting, two 50t jack 15 are installed respectively on gate stand 14, the old cooling of top pine
Wall, while 1#, 2# hoist engine coordinate gradually ejection cooling wall, treat old cooling wall ejection position as shown in Figure 3.
（7）, center slider gib head hangs.As shown in Figure 3, fall center slider 9 to height is changed, utilize distributor chute
3 rotations, which go to eave tile, changes cooling wall direction, is hooked into cleek in the sling of cooling wall, crawl center slider, makes hook
Head stress.
（8）, center slider and 1#, 2# hoist engine coordinate, old cooling wall is hung out from big square hole, now 1#, 2# hoist engine
Fag end synchronously rises to big square hole platform.
（9）, cleaning remove cooling wall around and its furnace shell on the inside of grouting material, stretched at cooling wall of furnace shell water pipe hole,
Grouting material is cleaned out with scoop, chisel, is ready to install new cooling wall.
The 2nd, new cooling wall is installed
（1）, before installation cooling wall, suspension centre is set in the hot face of new cooling wall and hot face is sprayed, the sealing of filler will be substituted
Plate is installed in place.
（2）, new cooling wall water pipe reeves.Make draught line by two water among the new cooling wall of steel wire penetrating with iron wire
Pipe, and fixed steel wire rope and the new cooling wall water pipe mouth of pipe with the taper holding clamp specially processed, prevent steel cable sliding.
（3）, cooling wall water pipe drawn into cable wire end be connected in advance with 1#, 2# hoist engine fag end, with furnace roof 65T cranes
New cooling wall is hung to big square hole and switched to the slider of center, the hot face that the gib head of center slider 9 is hung on new cooling wall repacking is hung
On ear 17, as shown in Figure 4.
（4）, coordinated using two hoist engines and center slider new cooling wall slowly drop to installation place, utilize 1#, 2#
Hoist engine is by cooling wall stress dropping place.
（5）, adjustment each technical parameter of cooling wall, cooling wall and adjacent cooling wall gap（20mm±5）, cooling water pipe and stove
Shell gap（More than 8mm）.
（6）, cooling wall fix, after adjusting gap, fastening bolt, pretightning force 400Nm.Filled from stove skin external apertures
Slurry, completes the installation of cooling wall, and realization is whole unmanned into operation in stove.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiments of the present invention are simultaneously not restricted to the described embodiments, it should be appreciated that people in the art
Member can be designed that a lot of other modifications and embodiment, and these modifications and embodiment will fall in principle disclosed in the present application
Within scope and spirit.
Claims (7)
1. a kind of installation method of blast furnace cooling stave, including old cooling wall is removed and the installation of new cooling wall, it is characterised in that：
Old cooling wall, which is removed, to be comprised the following steps：
（1）, furnace roof open big square hole, remove valve box and central throat tube, distributor chute reequiped, pacify on distributor chute top
Dress changed course pulley, installs fixed pulley in distributor chute bottom, by the use of batch can as main suspension centre, installs main tackle pulley；
（2）, connecting leg outside old cooling wall removed, the water pipe metal for upper and lower section of cooling wall being connected with the old cooling wall is soft
Pipe connects, it is ensured that upper and lower section of cooling wall current are unimpeded, protect the cooling wall being changed without；Old cooling wall seal closure is cut, is exposed cold
But wall copper pipe and appropriate length is cut to, to facilitate very heavy ejecting force as principle；
（3）, hoist engine setting, 1#, 2# hoist engine are set in platform residing for lower nozzle on old cooling wall, furnace roof center slider
Hoist engine is arranged at the big square hole platform of furnace roof, and the fag end of 1# and 2# hoist engines is respectively led into puts down with lower nozzle level on old cooling wall
Line position is put；
（4）, old cooling wall water pipe reeves；Make draught line by two cooling waters among steel wire penetrating cooling wall with iron wire
Pipe, and fixed steel wire rope and the cooling water pipe mouth of pipe with taper holding clamp, prevent steel cable sliding；Then by 1# hoist engines and
The fag end of 2# hoist engines is connected with the steel wire rope of upper and lower ends respectively, and somewhat stress；
（5）, erecting and welding be used to eject the gate stand of old cooling wall, installation site is diagonal two cooling water pipes of old cooling wall
Outside hole；
（6）, the old cooling wall bolt of dismounting, two jack are installed respectively on gate stand, push up loose cooling wall, while 1#, 2#
Hoist engine coordinates gradually ejection cooling wall, and cooling wall is ejected；
（7）, center slider gib head hangs；Fall center slider to height is changed, rotated using distributor chute and go to eave tile more
Cooling wall direction is changed, center slider is hooked into the sling of cooling wall with cleek, crawl center slider, makes gib head stress；
（8）, center slider and 1#, 2# hoist engine coordinate, old cooling wall is hung out from big square hole, now 1#, 2# hoist engine fag end
Synchronously rise to big square hole platform；
（9）, cleaning remove old cooling wall around and its furnace shell on the inside of grouting material, stretched at cooling wall of furnace shell water pipe hole, use
Scoop, chisel clean out grouting material, are ready to install new cooling wall；
New cooling wall installation comprises the following steps：
（1）, before the new cooling wall of installation, suspension centre is set in new cooling wall hot face and hot face is sprayed, while filler will be substituted
Sealing plate be installed in place；
（2）, new cooling wall water pipe reeves；Make draught line by two water pipes among the new cooling wall of steel wire penetrating with iron wire,
And fixed steel wire rope and the cooling wall water pipe mouth of pipe with taper holding clamp, prevent steel cable sliding；
（3）, new cooling wall water pipe is drawn into cable wire end be connected in advance with 1#, 2# hoist engine fag end, will be newly with furnace roof crane
Cooling wall is hung to big square hole and switched to the slider of center, and center slider gib head is hung on the hot face hanger of new cooling wall repacking；
（4）, coordinated using two hoist engines and center slider new cooling wall slowly drop to installation place, utilize 1#, 2# elevator
Machine pulls new cooling wall installation dropping place；
（5）, the new cooling wall of adjustment every technical parameter, including the new cooling wall of adjustment and adjacent cooling wall gap and new cooling are installed
The cooling water pipe of wall and furnace shell gap；
（6）, cooling wall fixes；
After adjusting gap, fastening bolt, it is in the milk from stove skin external apertures, completes the installation of cooling wall, realizing whole process, nobody enters
Enter in stove and operate.
2. the installation method of blast furnace cooling stave according to claim 1, it is characterised in that：
One end of the taper holding clamp is filled in cooling water pipe and fixed, and has one to run through steel wire among taper holding clamp
The aperture of rope, after steel wire penetrating aperture, steel wire rope is compressed and consolidated by filling in one end of cooling water pipe by taper holding clamp
It is fixed.
3. the installation method of blast furnace cooling stave according to claim 1, it is characterised in that：
The gate stand uses I-steel I16.
4. the installation method of blast furnace cooling stave according to claim 1, it is characterised in that：
Two jack installed on the gate stand are 50t jack.
5. the installation method of blast furnace cooling stave according to claim 1, it is characterised in that：
The furnace roof crane is 65T cranes.
6. the installation method of blast furnace cooling stave according to claim 1, it is characterised in that：
Adjustment cooling wall is 20mm ± 5mm with adjacent cooling wall gap, and cooling water pipe is more than 8mm with furnace shell gap.
7. the installation method of blast furnace cooling stave according to claim 1, it is characterised in that：
The pretightning force of the fastening bolt is 400Nm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218926.8A CN107699650B (en) | 2017-11-28 | 2017-11-28 | A kind of installation method of blast furnace cooling stave |
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| CN201711218926.8A CN107699650B (en) | 2017-11-28 | 2017-11-28 | A kind of installation method of blast furnace cooling stave |
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| CN107699650B CN107699650B (en) | 2019-04-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108384909A (en) * | 2018-04-17 | 2018-08-10 | 中冶天工集团天津有限公司 | A kind of blast furnace cooling stave mounting device and its application method |
| CN109722497A (en) * | 2018-10-30 | 2019-05-07 | 上海宝冶冶金工程有限公司 | A kind of blast furnace repairs construction method in changing in short term |
| CN113832275A (en) * | 2021-09-09 | 2021-12-24 | 武汉钢铁有限公司 | Method for replacing whole circle of blast furnace copper cooling wall without entering people |
| CN114395652A (en) * | 2021-12-24 | 2022-04-26 | 安阳钢铁股份有限公司 | Process method for online replacement of large-scale blast furnace throat cooling wall protection plate |
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| JPS528882A (en) * | 1975-07-11 | 1977-01-24 | Nippon Steel Corp | Machine cooler damage detector unit |
| JPS5877511A (en) * | 1981-10-31 | 1983-05-10 | Nippon Steel Corp | Stripping and removing method for stave of blast furnace |
| JP2007308747A (en) * | 2006-05-17 | 2007-11-29 | Nippon Steel Corp | Stave cooler for blast furnace |
| CN102912051A (en) * | 2012-10-26 | 2013-02-06 | 莱芜钢铁集团有限公司 | Method for exchanging cooling wall of blast furnace taphole online |
| 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 |
| CN103484587A (en) * | 2013-09-30 | 2014-01-01 | 天津二十冶建设有限公司 | Method for replacing cooling wall of blast furnace with material |
| CN105420432A (en) * | 2015-12-04 | 2016-03-23 | 山东钢铁股份有限公司 | Replacing method for cooling wall of blast furnace |
| CN106086263A (en) * | 2016-08-04 | 2016-11-09 | 河北钢铁股份有限公司承德分公司 | A kind of collaborative hanging method of blast furnace cooling stave |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS528882A (en) * | 1975-07-11 | 1977-01-24 | Nippon Steel Corp | Machine cooler damage detector unit |
| JPS5877511A (en) * | 1981-10-31 | 1983-05-10 | Nippon Steel Corp | Stripping and removing method for stave of blast furnace |
| JP2007308747A (en) * | 2006-05-17 | 2007-11-29 | Nippon Steel Corp | Stave cooler for blast furnace |
| CN102912051A (en) * | 2012-10-26 | 2013-02-06 | 莱芜钢铁集团有限公司 | Method for exchanging cooling wall of blast furnace taphole online |
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| CN103484587A (en) * | 2013-09-30 | 2014-01-01 | 天津二十冶建设有限公司 | Method for replacing cooling wall of blast furnace with material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108384909A (en) * | 2018-04-17 | 2018-08-10 | 中冶天工集团天津有限公司 | A kind of blast furnace cooling stave mounting device and its application method |
| CN108384909B (en) * | 2018-04-17 | 2023-09-08 | 中冶天工集团天津有限公司 | Blast furnace cooling wall mounting device and application method thereof |
| CN109722497A (en) * | 2018-10-30 | 2019-05-07 | 上海宝冶冶金工程有限公司 | A kind of blast furnace repairs construction method in changing in short term |
| CN113832275A (en) * | 2021-09-09 | 2021-12-24 | 武汉钢铁有限公司 | Method for replacing whole circle of blast furnace copper cooling wall without entering people |
| CN113832275B (en) * | 2021-09-09 | 2023-01-24 | 武汉钢铁有限公司 | Method for replacing whole circle of blast furnace copper cooling wall without entering people |
| CN114395652A (en) * | 2021-12-24 | 2022-04-26 | 安阳钢铁股份有限公司 | Process method for online replacement of large-scale blast furnace throat cooling wall protection plate |
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| Publication number | Publication date |
|---|---|
| CN107699650B (en) | 2019-04-26 |
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