CN109468420A - A kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method - Google Patents
A kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method Download PDFInfo
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- CN109468420A CN109468420A CN201811540710.8A CN201811540710A CN109468420A CN 109468420 A CN109468420 A CN 109468420A CN 201811540710 A CN201811540710 A CN 201811540710A CN 109468420 A CN109468420 A CN 109468420A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
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Abstract
The art of this patent is mainly used for solving industrial system Blast Furnace Push replacement furnace body, it can be by blast-furnace body structure in the new furnace body of passage quick-replaceable, it does not influence blast-furnace body frame structure stability utmostly, reduces structural demolition for furnace body passage, save replacement and save the time.This method replaces furnace structure suitable for big volume blast furnace maintenance, solves the problems, such as that the last furnace shell replacement cycle is long, the off-time is long.
Description
Technical field
The present invention relates to blast furnace technical field of construction, and in particular to a kind of last furnace shell passage segmentation hydraulic synchronizing lifting group
Dress method.
Background technique
With the development of modern industry, equipment all develops to enlargement, high efficiency, low energy consumption.The volume of blast furnace is also got over
Come bigger, but blast furnace is continuous operation at high temperature, and furnace structure and equipment life are shorter, and traditional method is typically all
Blast furnace Divisional carries out maintenance replacement, also has and elapses replacement furnace structure offline using blast furnace, but traditional replacing options blowing out
Time is long, is locally overhauled, big to Influence of production.The method of offline passage replacement furnace structure, need to destroy part body frame
Frame structural beams impact the stability of main structure, and frame structural beam is repaired in high-altitude, and security risk is big.
Summary of the invention
It is hydraulic same that the present invention provides a kind of last furnace shell passage segmentation to solve technical problem present in well-known technique
Step promotes assemble method, and the quantity for removing blast-furnace body Vierendeel girder during blast furnace elapses offline can be reduced using this method, is mentioned
High blast-furnace body frame reduces industrial accident, accelerates speed of application.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method, includes the following steps:
(1) in the steel structure frame of original old blast furnace frame on four corner posts, horizontal direction welding hydraulic synchronization is mentioned
System cantilever steel girder is risen, four corner posts of cantilever steel girder and frame must guarantee welding quality when welding, and reinforce welding with stiffener；
Cantilever steel girder length will exceed furnace body frame platform, it is ensured that hydraulic lifting apparatus is vertical with furnace body hoist point；
(2) in Cantilever Beams lower weld support column, it is mounted on main beam in frame, it is ensured that can will bear to promote pulling force effect；Branch
Dagger is selectively mounted at the 1/3 of cantilever steel girder；
(3) the reserved installation hydraulic lifting device installation position of cantilever steel girder and support column front end position is being located at, because of cantilever steel girder
It is made of H profile steel, flexible steel twisted wire is used when hydraulic lifting device is promoted, and flexible steel twisted wire is in cantilever steel girder end
Center is worn by H profile steel to upper of furnace body point；
(4) in the position of above-mentioned cantilever steel girder end hydraulic lifting device by upper and lower flange plate center making circular hole,
Upper and lower hole site ensures vertical correspondence；Round hole aperture is greater than flexible steel twisted wire diameter, and installs moccasin in hole inner wall, prevents
Flexible steel twisted wire and circular-hole internal-wall friction damage flexible steel twisted wire.
(5) weld bearing diagonal beam in the side of Cantilever Beams and support column, one end and landing beam weld, one end and Cantilever Beams and
The welding of support column junction, soldering angle are in 45 degree；
(6) hydraulic synchronizing lifting system is installed on platform, including hydraulic station, control platform, flexible steel twisted wire and hydraulic is mentioned
Rise equipment；
(7) put more energy into ring flat-plate lower part setting bracket structure in upper furnace body, using bracket structure as promoting time suspension centre, bracket
The position of setting is corresponding with the hydraulic synchronizing lifting system that upper brace is arranged；
(8) divide furnace body to put more energy into making circular hole on ring flat-plate and bracket in upper of furnace body, and moccasin is installed in hole inner wall, it is ensured that is soft
Property steel strand wires put more energy into ring flat-plate and bracket in same vertical line from top hydraulic synchronizing lifting system to furnace body；
(9) flexible steel twisted wire is worn into put more energy into ring flat-plate and bracket circular hole from hydraulic synchronizing lifting system, and fixed；
(10) start Synchronous lifting, until promotion is to designed elevation and Synchronous Radio lower furnace body is docked with lower portion of furnace body point, remove
Hydraulic synchronous system.
Moreover, the cantilever steel girder uses H profile steel, model HN700x300x13x24.
Moreover, the support column uses H profile steel, model HM488x300x11x18.
It passes through, hydraulic pressure lift need to be set moreover, the cantilever steel girder H profile steel web is in center influence flexible steel twisted wire
The cantilever steel girder web of standby installed position is cut off, and to guarantee to promote safety, is cut off position two sides in web and is respectively welded with thickness
Web is spent, welding position ensures that steel strand wires pass through, while flange plate is divided into trisection, it is ensured that uniform force when promotion.
Moreover, the bearing diagonal uses hot rolling HW300x300x10x15 section steel manufacture.
Moreover, when the cantilever steel girder and frame column weld, while flange plate welds stiffener, stiffener above and below fashioned iron
Steel plate thickness cannot be less than web thickness, guarantee fusion length.
Moreover, the bearing diagonal beam is welded on the side of cantilever steel girder and support column, but the oblique branch in symmetry angle
Support the opposite to that direction of beam, the corresponding installation of four bearing diagonal beams.
Moreover, first checking whether four flexible steel twisted wire length are identical, it is ensured that in lifting process not before the Synchronous lifting
Weight offset occurs；And examination is first carried out in lifting process to mention, can be promoted after acceptance(check).
Advantages of the present invention and economic effect are:
The quantity for removing blast-furnace body Vierendeel girder during blast furnace elapses offline can be reduced using this method, improve blast furnace sheet
Body frame reduces industrial accident, accelerates speed of application, by using lifting steel structural bracket, bracket and blast-furnace body frame
Trestle and Main Girder Welding form stable structure, and bracket is made of H profile steel, for placing hydraulic synchronizing lifting equipment, bracket
4 top suspension centres, uniform branch in 360 degree are set altogether with hydraulic synchronizing lifting equipment；Lower part suspension centre makes bracket using steel plate,
It is welded on furnace shell stiffening ring lower part, is coexisted on a vertical plane with bracket and hydraulic synchronizing lifting equipment, it is ensured that promotes furnace body knot
The Synchronous lifting of the safety and stability of structure.After upper of furnace body separation structure is promoted to designed elevation, by lower portion of furnace body point passage to furnace
It is welded in body frame with upper part.It is realization is safe, accurate in place using this Synchronous lifting method, reduction dismounting, repair
Amount.This method occupies little space, is easy to make, is promoted and stablizes, is conducive to lower step constructing operation, creates the bigger output value for construction.
Detailed description of the invention
Fig. 1 is blast furnace hydraulic Synchronous lifting plan view of the present invention；
Fig. 2 is blast furnace hydraulic Synchronous lifting sectional view of the present invention.
In figure: 1 blast-furnace body frame column, 2 cantilever steel girder, 3 bearing diagonal beam, 4 support column, 5 hydraulic synchronizing lifting system 6
7 upper of furnace body of flexible steel twisted wire point 8 furnace bodies are put more energy into 9 bracket of ring flat-plate
Specific embodiment
For that can further appreciate that the contents of the present invention, feature and effect, the following examples are hereby given, and cooperates attached drawing detailed
It is described as follows.It should be noted that the present embodiment be it is descriptive, be not restrictive, cannot thus limit guarantor of the invention
Protect range.
A kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method, includes the following steps:
(1) in the steel structure frame of original old blast furnace frame on four corner posts, horizontal direction welding hydraulic synchronization is mentioned
System cantilever steel girder is risen, cantilever steel girder is made of H profile steel (HN700x300x13x24), cantilever steel girder and four corner posts of frame
It must guarantee welding quality when welding, and reinforce welding with stiffener；Cantilever steel girder length will exceed furnace body frame platform, it is ensured that liquid
Press lifting device vertical with furnace body hoist point；
(2), in Cantilever Beams lower weld support column, support column is made of H profile steel (HM488x300x11x18), is mounted on
On main beam in frame, it is ensured that can will bear to promote pulling force effect；Support column is selectively mounted at the 1/3 of cantilever steel girder；
(3) the reserved installation hydraulic lifting device installation position of cantilever steel girder and support column front end position is being located at, because of cantilever steel girder
It is made of H profile steel, flexible steel twisted wire is used when hydraulic lifting device is promoted, and flexible steel twisted wire is in cantilever steel girder end
Center is worn by H profile steel to upper of furnace body point；
(4) in the position of above-mentioned cantilever steel girder end hydraulic lifting device by upper and lower flange plate center making circular hole,
Upper and lower hole site ensures vertical correspondence；Round hole aperture is greater than flexible steel twisted wire diameter, and installs moccasin in hole inner wall, prevents
Flexible steel twisted wire and circular-hole internal-wall friction damage flexible steel twisted wire.
(5) weld bearing diagonal beam in the side of Cantilever Beams and support column, one end and landing beam weld, one end and Cantilever Beams and
The welding of support column junction, soldering angle are in 45 degree；
(6) hydraulic synchronizing lifting system is installed on platform, including hydraulic station, control platform, flexible steel twisted wire and hydraulic is mentioned
Rise equipment；
(7) put more energy into ring flat-plate lower part setting bracket structure in upper furnace body, using bracket structure as promoting time suspension centre, bracket
The position of setting is corresponding with the hydraulic synchronizing lifting system that upper brace is arranged；
(8) divide furnace body to put more energy into making circular hole on ring flat-plate and bracket in upper of furnace body, and moccasin is installed in hole inner wall, it is ensured that is soft
Property steel strand wires put more energy into ring flat-plate and bracket in same vertical line from top hydraulic synchronizing lifting system to furnace body；
(9) flexible steel twisted wire is worn into put more energy into ring flat-plate and bracket circular hole from hydraulic synchronizing lifting system, and fixed；
(10) start Synchronous lifting, until promotion is to designed elevation and Synchronous Radio lower furnace body is docked with lower portion of furnace body point, remove
Hydraulic synchronous system.
The cantilever steel girder H profile steel web is in center influence flexible steel twisted wire and passes through, and need to pacify hydraulic lifting device
Cantilever steel girder web at holding position is cut off, and to guarantee to promote safety, cuts off position two sides in web and stack pile abdomen is respectively welded
Plate, welding position ensures that steel strand wires pass through, while flange plate is divided into trisection, it is ensured that uniform force when promotion.
The bearing diagonal uses hot rolling HW300x300x10x15 section steel manufacture.
When the cantilever steel girder and frame column weld, while flange plate welds stiffener, stiffener steel plate above and below fashioned iron
Thickness cannot be less than web thickness, guarantee fusion length.
The bearing diagonal beam is welded on the side of cantilever steel girder and support column, but the bearing diagonal beam in symmetry angle with
Its opposite direction, the corresponding installation of four bearing diagonal beams.
Before the Synchronous lifting, first check whether four flexible steel twisted wire length are identical, it is ensured that do not occur in lifting process
Weight offset；And examination is first carried out in lifting process to mention, can be promoted after acceptance(check).
The operation principle of the present invention is that:
Last furnace shell passage segmentation hydraulic synchronizing lifting assemble method, be blast furnace passage when by new furnace body be segmented into
Row passage installation utilizes the principal post and girder of blast-furnace body frame in new upper of furnace body point passage to blast-furnace body frame
Structural behaviour welds hydraulic synchronization lifting system in four corner post positions of body frame and overhangs support steel beam, installs on girder steel
Hydraulic synchronization equipment, and hydraulic system is installed on body frame platform.By the soft of hydraulic synchronizing lifting system after installation is in place
Property steel strand wires and new upper of furnace body point suspension centre connect and synchronize promotion furnace body.Hydraulic synchronizing lifting system uses hydraulic pressure lift
Device is as lifting machinery, and flexible steel twisted wire is as load-bearing rigging.Hydraulic rockshaft is core-theaded type structure, using steel strand wires as promotion
Rigging, having safe and reliable, supporting part own wt, light, easy to transportation and installation, intermediate a series of uniquenesses such as need not to splice excellent
Point.
Hydraulic pressure lift process is that a process is one stroke of hydraulic rockshaft.When the repetitive operation of hydraulic rockshaft period
When, it is elevated weight and then moves up step by step.
Although the preferred embodiment of the present invention is described above in conjunction with attached drawing, the invention is not limited to upper
The specific embodiment stated, the above mentioned embodiment is only schematical, be not it is restrictive, this field it is common
Technical staff under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, may be used also
By make it is many in the form of, within these are all belonged to the scope of protection of the present invention.
Claims (8)
1. a kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method, characterized by the following steps:
(1) in the steel structure frame of original old blast furnace frame on four corner posts, horizontal direction welds hydraulic synchronizing lifting system
System cantilever steel girder, four corner posts of cantilever steel girder and frame must guarantee welding quality when welding, and reinforce welding with stiffener；Overhanging
Girder steel length will exceed furnace body frame platform, it is ensured that hydraulic lifting apparatus is vertical with furnace body hoist point；
(2) in Cantilever Beams lower weld support column, it is mounted on main beam in frame, it is ensured that can will bear to promote pulling force effect；Support column
It is selectively mounted at the 1/3 of cantilever steel girder；
(3) the reserved installation hydraulic lifting device installation position of cantilever steel girder and support column front end position is being located at, because cantilever steel girder uses
H profile steel production, uses flexible steel twisted wire, and flexible steel twisted wire is in cantilever steel girder end center when hydraulic lifting device is promoted
Position is worn by H profile steel to upper of furnace body point；
(4) in the position of above-mentioned cantilever steel girder end hydraulic lifting device by upper and lower flange plate center making circular hole, above and below
Hole site ensures vertical correspondence；Round hole aperture is greater than flexible steel twisted wire diameter, and installs moccasin in hole inner wall, prevents flexible steel
Twisted wire and circular-hole internal-wall friction damage flexible steel twisted wire.
(5) bearing diagonal beam is welded in the side of Cantilever Beams and support column, one end and landing beam weld, one end and Cantilever Beams and support
The welding of column junction, soldering angle are in 45 degree；
(6) hydraulic synchronizing lifting system is installed on platform, including hydraulic station, control platform, flexible steel twisted wire and hydraulic pressure lift are set
It is standby；
(7) put more energy into ring flat-plate lower part setting bracket structure in upper furnace body, be arranged using bracket structure as lower suspension centre, bracket is promoted
Position it is corresponding with the hydraulic synchronizing lifting system that upper brace is arranged；
(8) divide furnace body to put more energy into making circular hole on ring flat-plate and bracket in upper of furnace body, and moccasin is installed in hole inner wall, it is ensured that flexible steel
Twisted wire puts more energy into ring flat-plate and bracket in same vertical line from top hydraulic synchronizing lifting system to furnace body；
(9) flexible steel twisted wire is worn into put more energy into ring flat-plate and bracket circular hole from hydraulic synchronizing lifting system, and fixed；
(10) start Synchronous lifting, until promotion is to designed elevation and Synchronous Radio lower furnace body is docked with lower portion of furnace body point, remove hydraulic
Synchronization system.
2. a kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method according to claim 1, it is characterised in that:
The cantilever steel girder uses H profile steel, model HN700x300x13x24.
3. a kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method according to claim 1, it is characterised in that:
The support column uses H profile steel, model HM488x300x11x18.
4. a kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method according to claim 1, it is characterised in that:
The cantilever steel girder H profile steel web is in center influence flexible steel twisted wire and passes through, need to be by hydraulic lifting device installed position
Cantilever steel girder web cut off, for guarantee promoted safety, cut off position two sides in web and stack pile web, welding position be respectively welded
Setting ensures that steel strand wires pass through, while flange plate is divided into trisection, it is ensured that uniform force when promotion.
5. a kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method according to claim 1, it is characterised in that:
The bearing diagonal uses hot rolling HW300x300x10x15 section steel manufacture.
6. a kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method according to claim 1, it is characterised in that:
When the cantilever steel girder and frame column weld, while flange plate welds stiffener above and below fashioned iron, and stiffener steel plate thickness must not
Less than web thickness, guarantee fusion length.
7. a kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method according to claim 1, it is characterised in that:
The bearing diagonal beam is welded on the side of cantilever steel girder and support column, but the opposite to that side of bearing diagonal beam in symmetry angle
To the corresponding installation of four bearing diagonal beams.
8. a kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method according to claim 1, it is characterised in that:
Before the Synchronous lifting, first check whether four flexible steel twisted wire length are identical, it is ensured that weight offset does not occur in lifting process；
And examination is first carried out in lifting process to mention, can be promoted after acceptance(check).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540710.8A CN109468420A (en) | 2018-12-17 | 2018-12-17 | A kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811540710.8A CN109468420A (en) | 2018-12-17 | 2018-12-17 | A kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method |
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| CN109468420A true CN109468420A (en) | 2019-03-15 |
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| CN201811540710.8A Pending CN109468420A (en) | 2018-12-17 | 2018-12-17 | A kind of last furnace shell passage segmentation hydraulic synchronizing lifting assemble method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114058750A (en) * | 2021-11-30 | 2022-02-18 | 中国十九冶集团有限公司 | Lapping method for new and old foundations of blast furnace integrally and horizontally pushed |
| CN114480758A (en) * | 2021-12-23 | 2022-05-13 | 中国华冶科工集团有限公司 | Modular dismantling method for blast furnace frame |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2866514Y (en) * | 2006-02-22 | 2007-02-07 | 宝山钢铁股份有限公司 | Blast furnace body frame |
| CN203079579U (en) * | 2012-11-16 | 2013-07-24 | 河南省耕生耐火材料有限公司 | Steel ladle hydraulic rod suspending device |
| CN206769354U (en) * | 2017-05-10 | 2017-12-19 | 中城投集团第八工程局有限公司 | A kind of steel structure hoisting platform |
| CN108996385A (en) * | 2018-09-17 | 2018-12-14 | 安徽马钢设备检修有限公司 | A kind of last furnace shell lifting lifting device and its it is set using method |
-
2018
- 2018-12-17 CN CN201811540710.8A patent/CN109468420A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2866514Y (en) * | 2006-02-22 | 2007-02-07 | 宝山钢铁股份有限公司 | Blast furnace body frame |
| CN203079579U (en) * | 2012-11-16 | 2013-07-24 | 河南省耕生耐火材料有限公司 | Steel ladle hydraulic rod suspending device |
| CN206769354U (en) * | 2017-05-10 | 2017-12-19 | 中城投集团第八工程局有限公司 | A kind of steel structure hoisting platform |
| CN108996385A (en) * | 2018-09-17 | 2018-12-14 | 安徽马钢设备检修有限公司 | A kind of last furnace shell lifting lifting device and its it is set using method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114058750A (en) * | 2021-11-30 | 2022-02-18 | 中国十九冶集团有限公司 | Lapping method for new and old foundations of blast furnace integrally and horizontally pushed |
| CN114058750B (en) * | 2021-11-30 | 2022-10-14 | 中国十九冶集团有限公司 | Lap joint method for new and old foundations of whole horizontal moving of blast furnace |
| CN114480758A (en) * | 2021-12-23 | 2022-05-13 | 中国华冶科工集团有限公司 | Modular dismantling method for blast furnace frame |
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Application publication date: 20190315 |
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