CN102556853A - Metallurgical crane dismantling method - Google Patents
Metallurgical crane dismantling method Download PDFInfo
- Publication number
- CN102556853A CN102556853A CN2011104595436A CN201110459543A CN102556853A CN 102556853 A CN102556853 A CN 102556853A CN 2011104595436 A CN2011104595436 A CN 2011104595436A CN 201110459543 A CN201110459543 A CN 201110459543A CN 102556853 A CN102556853 A CN 102556853A
- Authority
- CN
- China
- Prior art keywords
- girder
- crane
- metallurgical
- hoist ceiling
- main
- Prior art date
- 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.)
- Granted
Links
Images
Abstract
A metallurgical crane dismantling method includes the following steps: using a first truck crane to place a plate hook of a metallurgical crane on the ground, and using a second truck crane to carry the plate hook to a specific position; using an electric hoist to dismantle a speed reducer and a winding drum on a main trolley and an auxiliary trolley of the metallurgical crane; using the other metallurgical crane to haul the metallurgical crane to a hoisting beam on the other side of a workshop, and enabling a winch to dismantle a main trolley body and an auxiliary trolley body; using the electric hoist and the winch to dismantle a cab and an electric room; using the other metallurgical crane to haul the metallurgical crane to the other side of the workshop, and using the electric hoist to dismantle a first auxiliary beam, a second auxiliary beam, a first auxiliary end beam and a second auxiliary end beam; using the electric hoist to dismantle a first main end beam and a second main end beam; using the electric hoist to dismantle a main trolley running device, a main trolley transmission system, an auxiliary trolley running device and an auxiliary trolley transmission system, and dismantling tracks on the first main end beam and the second main end beam; and partially hollowing out a first main beam and a second main beam, and using the electric hoist to dismantle the first main beam and the second main beam in a subsection mode.
Description
Technical field
The invention belongs to the large-scale hanging device maintenance of smelting system field, more particularly, relate to a kind of large-scale metallurgical crane method for dismounting.
Background technology
In the smelting process of iron and steel, produce the steel-making slab through sheet billet continuous casting technology usually.The weight of steel-making slab can reach hundreds of tons, therefore needs the large-scale metallurgical crane that the steel-making slab is carried out handling, so that carry out subsequent technique.
(for example, remove the new factory building of old the enlargement of the factory buildings) in some cases, need to remove the large-scale metallurgical crane.Yet generally, it is narrow and small that the large-scale metallurgical crane dismounts and mounts the workyard, can't arrange large-scale hoisting machine tool, can't directly utilize winch to lift, and auxiliary hoisting machine tools such as mast can't be set.Therefore, also there are many difficulties at the present large-scale metallurgical crane of removing.
Summary of the invention
To removing the difficulty that the large-scale metallurgical crane exists in the prior art, the present invention provides a kind of metallurgical crane method for dismounting, adopts this method can remove the metallurgical crane that is used for the steel-making slab of handling more than 200 tons easily and safely.
According to an aspect of the present invention; A kind of metallurgical crane method for dismounting is provided; Said method comprising the steps of: before metallurgical crane stops, use said metallurgical crane first wheel crane to be placed on the hole for hoist platform of predetermined altitude in the factory building, then metallurgical crane is parked in a side of factory building, use first wheel crane that the plate hook of metallurgical crane is put to ground from the hole for hoist platform; Place second wheel crane on ground, use second wheel crane that plate hook is transported to assigned address; Use the hoist ceiling crane that is provided with in the factory building that reductor on the reductor on the main carriage of metallurgical crane and reel and the secondary dolly and reel are removed and be placed on the said platform, use first wheel crane and second wheel crane that the reductor on the main carriage of removing and the reductor on reel and the secondary dolly and reel cooperation are transported to ground and are transported to assigned address; Use another the metallurgical crane in the factory building that said metallurgical crane is hauled the lifting beam to the opposite side that is arranged on factory building, utilize the winch on this lifting beam to remove main carriage car body and secondary dolly car body; Utilize hoist ceiling crane and winch to decompose operator's compartment and the electric panel room of removing metallurgical crane; Use said another metallurgical crane that metallurgical crane is hauled the said side to factory building, use hoist ceiling crane to remove first auxiliary girder and second auxiliary girder of metallurgical crane, use hoist ceiling crane to remove the first secondary end carriage and the second secondary end carriage of metallurgical crane then; Use hoist ceiling crane to remove the first main end carriage and the second main end carriage of metallurgical crane respectively; Use hoist ceiling crane to remove main carriage running gear, main carriage driving system, secondary dolly running gear and secondary dolly driving system, remove the track on the first main end carriage and the second main end carriage; First girder of metallurgical crane and second girder are carried out the part hollow out, use the hoist ceiling crane segmentation to remove first girder and second girder, accomplish the dismounting of metallurgical crane.
When removing the first main end carriage and the second main end carriage, can be in that to add cushion block below first girder and second girder and between the wheel of metallurgical crane fixing and weld temporarily.
The step of removing first girder can comprise: first fixed arm and second fixed arm are set, first girder is fixed to the hoist ceiling crane hanging beam; Upper flange, first web, second web of first girder carried out the part to be hollowed out; The first girder segmentation is cut into a plurality of parts, and use hoist ceiling crane with said a plurality of part handlings to ground.
One end of first fixed arm can be welded to about 1/6 girder extension position place of first girder, and the other end of first fixed arm extends straight up and is welded to the hoist ceiling crane hanging beam; One end of second fixed arm can be welded to about 5/6 extension position place of first girder, and the other end of second fixed arm extends straight up and is welded to the hoist ceiling crane hanging beam.
Can hollow out a plurality of zones according to size compartment of terrain on upper flange of upper flange.
Can be at twice first web of first girder and second web be carried out the part dislocation and hollow out, hollow out for the first time: hollow out a plurality of first areas in the first web compartment of terrain; Hollow out a plurality of the 3rd zones in the second web compartment of terrain; Said a plurality of the 3rd zone is corresponding one by one with a plurality of second areas between said a plurality of first areas of first web; Hollow out for the second time: hollow out a plurality of second areas in the first web compartment of terrain, said a plurality of second areas lay respectively between a plurality of first areas; Hollow out a plurality of the 4th zones in the second web compartment of terrain, said a plurality of the 4th zones lay respectively between said a plurality of the 3rd zone, and said a plurality of the 4th zones are corresponding one by one with the said a plurality of first areas between a plurality of second areas of first web.
The first girder segmentation is cut into a plurality of parts and uses hoist ceiling crane that said a plurality of part handlings to ground-surface step can be comprised: first girder is divided into five parts; First is that an end of first girder arrives about 1/6 girder extension position; Second portion is about 1/6 girder extension position to about 1/3 girder extension position; Third part is about 1/3 girder extension position to about 2/3 girder extension position; The 4th part is about 2/3 girder extension position to about 5/6 girder extension position; The 5th part is the other end of about 5/6 girder extension position to the first girder 3, and first comprises the position of weld of first fixed arm and first girder, and the 5th part comprises the position of weld of second fixed arm and first girder; Hang nose two of the two ends of the third part of first girder welding, connect two through steel cable and hang nose and hoist ceiling crane suspension hook, cut away third part from first girder then, the use hoist ceiling crane with the third part handling to ground; Nose is hung in welding at the middle part of second portion, connects through steel cable and hangs nose and hoist ceiling crane suspension hook, cuts away second portion from first girder then, the use hoist ceiling crane with the second portion handling to ground; Hang nose in the welding of tetrameric middle part, connect through steel cable and hang nose and hoist ceiling crane suspension hook, cut away the 4th part from first girder then, use hoist ceiling crane the 4th part handling to ground; Nose is hung in welding at the middle part of first, connects through steel cable and hangs nose and hoist ceiling crane suspension hook, cuts away first fixed arm from first then, the use hoist ceiling crane with first's handling to ground; Nose is hung in welding at the middle part of the 5th part, connects through steel cable and hangs nose and hoist ceiling crane suspension hook, cuts away second fixed arm from the 5th part then, the use hoist ceiling crane with the 5th part handling to ground.
Can remove second girder according to the dismounting mode identical with first girder.
Can carry out through cutter and hollow out operation and cutting operation.
Through adopting according to metallurgical crane method for dismounting of the present invention; Need not to use large-scale hoisting machine tool; Utilize the existing hoist ceiling crane of factory building, winch etc. can remove the metallurgical crane that is used for the steel-making slab of handling more than 200 tons easily, be convenient to the replacing or the maintenance of metallurgical crane.
Description of drawings
Through the description of exemplary embodiment being carried out below in conjunction with accompanying drawing, these and/or others of the present invention and advantage will become clear, and are easier to understand, wherein:
Fig. 1 is the birds-eye view according to the overall structure of metallurgical crane of the present invention;
Fig. 2 is the diagram of circuit according to metallurgical crane method for dismounting of the present invention;
Fig. 3 shows the scheme drawing of working fastening girder;
Fig. 4 shows the section drawing of the girder of metallurgical crane;
Fig. 5 shows the scheme drawing that the upper flange to girder hollows out;
Fig. 6 shows the scheme drawing that the web to girder hollows out.
The specific embodiment
Below, describe embodiments of the invention in detail with reference to accompanying drawing.
Usually, in factory building, be provided with two metallurgical cranes that structure is identical, these two metallurgical cranes can be operated separately, and the operation that also can be fitted to each other is used for handling steel-making slab and other associated components, material etc.
Fig. 1 is the birds-eye view of the overall structure of a metallurgical crane.With reference to Fig. 1, metallurgical crane comprises main carriage 1 and secondary dolly 2.Main carriage 1 is installed on first girder 3 and second girder 4, and main carriage 1 can be through the main carriage running gear along the guide rail cross motion on first girder 3 and second girder 4.Secondary dolly 2 is installed on first auxiliary girder 5 and second auxiliary girder 6, and secondary dolly 2 can be through secondary dolly running gear along the guide rail cross motion on first auxiliary girder 5 and second auxiliary girder 6.First girder 3 and second girder 4 are connected to each other through the first main end carriage 7 and the second main end carriage 8.First auxiliary girder 5 and second auxiliary girder 6 are connected to each other through the first secondary end carriage 9 and the second secondary end carriage 10.The first secondary end carriage 9 and the second secondary end carriage 10 all are connected to first girder 3 and second girder 4.The two ends of first girder 3 are provided with wheel; The two ends of second girder 4 also are provided with wheel; These wheels can be supported by two longitudinal rails of the desired height position that is arranged on factory building, and can move along said two longitudinal rails, longitudinally move with secondary dolly 2 thereby drive main carriage 1.Therefore, metallurgical crane can the side (for example factory building north side/southern side) along two longitudinal rails from factory building moves to the relative opposite side (for example factory building southern side/north side) of factory building.But the heavier steel-making slab of main carriage 1 handling (for example weigh 200 tons steel-making slab), but the lighter relatively steel-making slab of secondary dolly 2 handlings (for example weigh 60 tons steel-making slab).Through the cross motion and the longitudinal movement of main carriage 1 and secondary dolly 2, can be with the steel-making slab handling of Different Weight to assigned address.
Fig. 2 is the diagram of circuit according to metallurgical crane method for dismounting of the present invention.
See figures.1.and.2, before removing metallurgical crane,, carry out the preparation (for example, the card of clearing the way, Warning light, suspension warning mark etc. are set) of each item work, after the dead work completion, can carry out the dismounting work of metallurgical crane according to the requirement of dead work.
In step 201; The said metallurgical crane of use (for example is placed in the factory building predetermined altitude with first wheel crane (for example 50 tons of wheel cranes) before metallurgical crane stops; 16 meters are high) the hole for hoist platform on; Then metallurgical crane is parked in a side (for example factory building southern side) of factory building, uses first wheel crane that the plate hook of metallurgical crane is put to zero meter face from the hole for hoist platform, break off steel cable; Place second wheel crane (for example 75 tons of wheel cranes) at zero meter face, use second wheel crane that plate hook is transported to assigned address.
In step 202; Using the hoist ceiling crane (for example 16 tons of hoist ceiling cranes) that is provided with in the factory building that reductor on the reductor on the main carriage of metallurgical crane and reel and the secondary dolly and reel etc. are carried out protectiveness removes (promptly; Non-destructive is removed) and put to 16 meters platforms; Use first wheel crane and second wheel crane that the reductor on the reductor on the main carriage of removing and reel, the secondary dolly and reel are cooperated and be transported to zero meter face, and be transported to assigned address.
In step 203, use another the metallurgical crane in the factory building that metallurgical crane is hauled the lifting beam to the opposite side that is arranged on factory building (for example factory building north side).At this moment, this lifting beam has performed lifting and has prepared, and utilizes the winch on this lifting beam to remove main carriage car body and secondary dolly car body.
In step 204, utilize hoist ceiling crane and winch, decompose operator's compartment and the electric panel room of removing metallurgical crane.Operator's compartment is arranged on the lower surface of lower wing plate of a girder in first girder 3 and second girder 4, and electric panel room is arranged on the upper surface of upper flange of a girder in first girder 3 and second girder 4.
In step 205, use said another metallurgical crane that metallurgical crane is hauled the said side (for example southern side) to factory building.For example, first auxiliary girder 5 and second auxiliary girder 6 can weigh 16.35 tons respectively, after removing the auxiliary girder track, can heavily about respectively 14.35 tons, and can use 16 tons of hoist ceiling cranes to remove first auxiliary girder 5 and second auxiliary girder 6.Can adopt the mode of segmentation to remove, use hoist ceiling crane to remove first auxiliary girder 5 and second auxiliary girder 6 earlier, use hoist ceiling crane to remove the first secondary end carriage 9 and the second secondary end carriage 10 then.
In step 206, after removing first auxiliary girder 5 and second auxiliary girder 6, use hoist ceiling crane to remove the first main end carriage 7 and the second main end carriage 8 respectively.The first main end carriage 7 all is connected with second girder 4 with first girder 3 with the second main end carriage 8.When removing the first main end carriage 7 with the second main end carriage 8, need the moveable hinge of first girder 3 and second girder 4 is fixed, particularly, can fix also and weld temporarily adding cushion block below first girder 3 and second girder 4 and between the wheel of metallurgical crane.
In step 207, use hoist ceiling crane to remove main carriage running gear, main carriage driving system, secondary dolly running gear, secondary dolly driving system, remove the track on the first main end carriage 7 and the second main end carriage 8.Can comprise corresponding smallclothes in the track, remove the just subsidiary smallclothes of having removed of track.For example, track and smallclothes can nearly weigh 3 tons.
In step 208, first girder 3 and second girder 4 are carried out the part hollow out, use hoist ceiling crane to remove first girder 3 and second girder 4, accomplish the dismounting of metallurgical crane.Because girder is heavier, therefore need hollow out and the segmentation dismounting the girder part.
Particularly, first fixed arm and second fixed arm are set, an end of first fixed arm is welded to about 1/6 girder extension position place of first girder 3, and the other end of first fixed arm extends straight up and is welded to the hoist ceiling crane hanging beam; One end of second fixed arm is welded to about 5/6 extension position place of first girder 3, and the other end of second fixed arm extends straight up and is welded to the hoist ceiling crane hanging beam.First fixed arm and second fixed arm are fixed to the hoist ceiling crane hanging beam as temporary fastening device with first girder 3.First fixed arm and second fixed arm can be processed by No. 20 steel.Fig. 3 shows the scheme drawing of working fastening first girder 3, and wherein, (b) among Fig. 3 is along the section drawing of the A-A line intercepting of (a) among Fig. 3; Wherein, label 301,302 expression intercolumniations support lower edge, label 303 expressions first fixed arm; Label 304 expressions second fixed arm; Label 305,306 expressions 2 * 2 polyspast, label 307 expression hoist ceiling crane hanging beams, label 308 is illustrated in the clamp that welds on the hoist ceiling crane hanging beam; Label 309 is illustrated in the nose that hangs that welds on the girder, and label 310 expression first fixed arms and second fixed arm are inserted in the upper flange of girder and weld.
Fig. 4 shows the section drawing of first girder 3.With reference to Fig. 4, first girder 3 comprises upper flange 31, first web 32, second web 33 and lower wing plate 34.Upper flange 31, first web 32, second web 33 and lower wing plate 34 have predetermined thickness, and the girder of the hollow that forms strip shape of being bonded to each other.The structure of second girder 4 can be identical with the structure of first girder 3.
When removing first girder 3, need carry out the part and hollow out upper flange 31, first web 32, second web 33, to alleviate the weight of first girder 3.Can use cutter to cut away the specific part of upper flange 31, first web 32, second web 33, carry out the part and hollow out.
Fig. 5 shows the scheme drawing that the upper flange to girder hollows out.Referring to Fig. 5, can hollow out a plurality of zones according to size compartment of terrain on upper flange of upper flange.Preferably, can equally spaced hollow out a plurality of zones.The a plurality of zones that in upper flange, hollowed out two kinds of sizes have been shown among Fig. 5, i.e. the zone and the zone of 3 second sizes of 18 first sizes, but this only is an example, but the quantity in the zone that appropriate change hollows out and size.
Fig. 6 shows the scheme drawing that the web to girder hollows out.Referring to Fig. 6, can be at twice first web of first girder 3 and second web being misplaced hollows out.Hollow out for the first time: hollow out a plurality of first areas in the first web compartment of terrain, shown in the part of the I among Fig. 6; Hollow out a plurality of the 3rd zones in the second web compartment of terrain, shown in the II among Fig. 6 part, a plurality of second areas between a plurality of first areas of a plurality of the 3rd zones and first web are corresponding one by one.Hollow out for the second time: hollow out a plurality of second areas in the first web compartment of terrain, a plurality of second areas lay respectively between a plurality of first areas, shown in the part of the II among Fig. 6; Hollow out a plurality of the 4th zones in the second web compartment of terrain, a plurality of the 4th zones lay respectively between a plurality of the 3rd zones, and shown in the I among Fig. 6 part, a plurality of first areas between a plurality of second areas of a plurality of the 4th zones and first web are corresponding one by one.Can carry out hollowing out the first time at the auxiliary girder period for removal.
That is, be as the criterion with the line of centers of girder, can not hollow out with respect to the line of centers symmetry of girder, the hole that at every turn hollows out needs dislocation, prevents like this that crane girder partial points position is stressed and collapses.For example, the weight that hollows out for twice of first web of first girder 3 and second web amounts to can reach 5.875 tons.
With reference to Fig. 6, twice of first web/second web hollowed out 27 zones altogether, but this only is an example, but the quantity in the zone that appropriate change hollows out.
The shape of the area of knockout of upper flange, first web, second web can be rectangle, circle, ellipse etc.
After first girder 3 is hollowed out, 3 segmentations of first girder are cut into a plurality of parts, use hoist ceiling crane with said a plurality of part handlings to ground.
Preferably, with reference to Fig. 3, at first first girder 3 is divided into five parts, first is that an end of first girder 3 arrives about 1/6 girder extension position; Second portion is about 1/6 girder extension position to about 1/3 girder extension position; Third part is about 1/3 girder extension position to about 2/3 girder extension position; The 4th part is about 2/3 girder extension position to about 5/6 girder extension position; The 5th part is the other end of about 5/6 girder extension position to the first girder 3.First comprises the position of weld of first fixed arm and first girder 3, and the 5th part comprises the position of weld of second fixed arm and first girder 3.
Then, hang nose, connect two through steel cable and hang nose and hoist ceiling crane suspension hook, cut away third part from first girder 3 then two of the two ends of the third part of first girder 3 welding, the use hoist ceiling crane with the third part handling to ground.
Then, nose is hung in welding at the middle part of second portion, connects through steel cable and hangs nose and hoist ceiling crane suspension hook, cuts away second portion from first girder 3 then, the use hoist ceiling crane with the second portion handling to ground.
Then, hang nose, connect through steel cable and hang nose and hoist ceiling crane suspension hook, cut away the 4th part from first girder 3 then in the tetrameric middle part welding, the use hoist ceiling crane with the 4th part handling to ground.
Second portion and tetrameric dismounting order are interchangeable.
Then, nose is hung in welding at the middle part of first, connects through steel cable and hangs nose and hoist ceiling crane suspension hook, cuts away first fixed arm from first then, the use hoist ceiling crane with first's handling to ground.
Then, nose is hung in welding at the middle part of the 5th part, connects through steel cable and hangs nose and hoist ceiling crane suspension hook, cuts away second fixed arm from the 5th part then, the use hoist ceiling crane with the 5th part handling to ground.
The dismounting order of first and the 5th part is interchangeable.Can respectively handling to ground-surface first to the five parts be transported to assigned address.
At last, can be according to removing second girder 4 with first girder, 3 identical dismounting modes.
Through adopting according to metallurgical crane method for dismounting of the present invention; Need not to use large-scale hoisting machine tool; Utilize the existing hoist ceiling crane of factory building, winch etc. can remove the metallurgical crane that is used for the steel-making slab of handling more than 200 tons easily, be convenient to the replacing or the maintenance of metallurgical crane.
Though the present invention is specifically described with reference to its exemplary embodiment and is shown; But will be understood by those skilled in the art that; Under the situation that does not break away from the spirit and scope of the present invention that are defined by the claims, can carry out the various changes of form and details to it.
Claims (9)
1. metallurgical crane method for dismounting may further comprise the steps:
, use by metallurgical crane said metallurgical crane first wheel crane to be placed on the hole for hoist platform of predetermined altitude in the factory building before stopping; Then metallurgical crane is parked in a side of factory building; Use first wheel crane that the plate hook of metallurgical crane is put to ground from the hole for hoist platform; Place second wheel crane on ground, use second wheel crane that plate hook is transported to assigned address;
Use the hoist ceiling crane that is provided with in the factory building that reductor on the reductor on the main carriage of metallurgical crane and reel and the secondary dolly and reel are removed and be placed on the said platform, use first wheel crane and second wheel crane that the reductor on the main carriage of removing and the reductor on reel and the secondary dolly and reel cooperation are transported to ground and are transported to assigned address;
Use another the metallurgical crane in the factory building that said metallurgical crane is hauled the lifting beam to the opposite side that is arranged on factory building, utilize the winch on this lifting beam to remove main carriage car body and secondary dolly car body;
Utilize hoist ceiling crane and winch to decompose operator's compartment and the electric panel room of removing metallurgical crane;
Use said another metallurgical crane that metallurgical crane is hauled the said side to factory building, use hoist ceiling crane to remove first auxiliary girder and second auxiliary girder of metallurgical crane, use hoist ceiling crane to remove the first secondary end carriage and the second secondary end carriage of metallurgical crane then;
Use hoist ceiling crane to remove the first main end carriage and the second main end carriage of metallurgical crane respectively;
Use hoist ceiling crane to remove main carriage running gear, main carriage driving system, secondary dolly running gear and secondary dolly driving system, remove the track on the first main end carriage and the second main end carriage;
First girder of metallurgical crane and second girder are carried out the part hollow out, use the hoist ceiling crane segmentation to remove first girder and second girder, accomplish the dismounting of metallurgical crane.
2. method according to claim 1, wherein, when removing the first main end carriage and the second main end carriage, cushion block fixing and weld temporarily adding below first girder and second girder and between the wheel of metallurgical crane.
3. method according to claim 1, wherein, the step of removing first girder comprises:
First fixed arm and second fixed arm are set, first girder is fixed to the hoist ceiling crane hanging beam;
Upper flange, first web, second web of first girder carried out the part to be hollowed out;
The first girder segmentation is cut into a plurality of parts, and use hoist ceiling crane with said a plurality of part handlings to ground.
4. method according to claim 3, wherein, an end of first fixed arm is welded to about 1/6 girder extension position place of first girder, and the other end of first fixed arm extends straight up and is welded to the hoist ceiling crane hanging beam; One end of second fixed arm is welded to about 5/6 extension position place of first girder, and the other end of second fixed arm extends straight up and is welded to the hoist ceiling crane hanging beam.
5. method according to claim 4 wherein, hollows out a plurality of zones according to size compartment of terrain on upper flange of upper flange.
6. method according to claim 5 wherein, is carried out the part dislocation to first web of first girder and second web at twice and is hollowed out,
Hollow out for the first time: hollow out a plurality of first areas in the first web compartment of terrain; Hollow out a plurality of the 3rd zones in the second web compartment of terrain, said a plurality of the 3rd zones are corresponding one by one with a plurality of second areas between said a plurality of first areas of first web,
Hollow out for the second time: hollow out a plurality of second areas in the first web compartment of terrain, said a plurality of second areas lay respectively between a plurality of first areas; Hollow out a plurality of the 4th zones in the second web compartment of terrain, said a plurality of the 4th zones lay respectively between said a plurality of the 3rd zone, and said a plurality of the 4th zones are corresponding one by one with the said a plurality of first areas between a plurality of second areas of first web.
7. method according to claim 6 wherein, is cut into the first girder segmentation a plurality of parts and uses hoist ceiling crane that said a plurality of part handlings to ground-surface step is comprised:
First girder is divided into five parts; First is that an end of first girder arrives about 1/6 girder extension position; Second portion is about 1/6 girder extension position to about 1/3 girder extension position; Third part is about 1/3 girder extension position to about 2/3 girder extension position, and the 4th part is about 2/3 girder extension position to about 5/6 girder extension position, and the 5th part is the other end of about 5/6 girder extension position to the first girder 3; First comprises the position of weld of first fixed arm and first girder, and the 5th part comprises the position of weld of second fixed arm and first girder;
Hang nose two of the two ends of the third part of first girder welding, connect two through steel cable and hang nose and hoist ceiling crane suspension hook, cut away third part from first girder then, the use hoist ceiling crane with the third part handling to ground;
Nose is hung in welding at the middle part of second portion, connects through steel cable and hangs nose and hoist ceiling crane suspension hook, cuts away second portion from first girder then, the use hoist ceiling crane with the second portion handling to ground;
Hang nose in the welding of tetrameric middle part, connect through steel cable and hang nose and hoist ceiling crane suspension hook, cut away the 4th part from first girder then, use hoist ceiling crane the 4th part handling to ground;
Nose is hung in welding at the middle part of first, connects through steel cable and hangs nose and hoist ceiling crane suspension hook, cuts away first fixed arm from first then, the use hoist ceiling crane with first's handling to ground;
Nose is hung in welding at the middle part of the 5th part, connects through steel cable and hangs nose and hoist ceiling crane suspension hook, cuts away second fixed arm from the 5th part then, the use hoist ceiling crane with the 5th part handling to ground.
8. method according to claim 7 wherein, is removed second girder according to the dismounting mode identical with first girder.
9. method according to claim 8, wherein, through cutter carry out hollow out the operation and cutting operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459543.6A CN102556853B (en) | 2011-12-31 | 2011-12-31 | Metallurgical crane dismantling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110459543.6A CN102556853B (en) | 2011-12-31 | 2011-12-31 | Metallurgical crane dismantling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102556853A true CN102556853A (en) | 2012-07-11 |
| CN102556853B CN102556853B (en) | 2014-03-19 |
Family
ID=46403710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110459543.6A Active CN102556853B (en) | 2011-12-31 | 2011-12-31 | Metallurgical crane dismantling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102556853B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107416547A (en) * | 2017-05-23 | 2017-12-01 | 五冶集团上海有限公司 | A kind of Anti-knocking method that ship unloaders cantilever girder is removed |
| CN110453934A (en) * | 2019-08-26 | 2019-11-15 | 攀钢集团工程技术有限公司 | Method for dismounting for large-scale steel structure roofing workshop |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS537068A (en) * | 1976-07-08 | 1978-01-23 | Nippon Crane Works | Automatic mounting and demounting device of tong* etc* in crane |
| JPH01252495A (en) * | 1988-03-30 | 1989-10-09 | Hitachi Plant Eng & Constr Co Ltd | Installation construction method of indoor crane |
| JPH03272998A (en) * | 1990-03-20 | 1991-12-04 | Kawaden Co Ltd | Method and device for exchanging wire rope of crane |
| CN101264845A (en) * | 2008-05-06 | 2008-09-17 | 首钢总公司 | Crown block high altitude integrated suspension transposition construction method |
| CN101723252A (en) * | 2009-11-11 | 2010-06-09 | 甘肃省电力公司刘家峡水电厂 | Overhead-traveling installation method of 400t overhead travelling crane replacement equipment |
-
2011
- 2011-12-31 CN CN201110459543.6A patent/CN102556853B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS537068A (en) * | 1976-07-08 | 1978-01-23 | Nippon Crane Works | Automatic mounting and demounting device of tong* etc* in crane |
| JPH01252495A (en) * | 1988-03-30 | 1989-10-09 | Hitachi Plant Eng & Constr Co Ltd | Installation construction method of indoor crane |
| JPH03272998A (en) * | 1990-03-20 | 1991-12-04 | Kawaden Co Ltd | Method and device for exchanging wire rope of crane |
| CN101264845A (en) * | 2008-05-06 | 2008-09-17 | 首钢总公司 | Crown block high altitude integrated suspension transposition construction method |
| CN101723252A (en) * | 2009-11-11 | 2010-06-09 | 甘肃省电力公司刘家峡水电厂 | Overhead-traveling installation method of 400t overhead travelling crane replacement equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107416547A (en) * | 2017-05-23 | 2017-12-01 | 五冶集团上海有限公司 | A kind of Anti-knocking method that ship unloaders cantilever girder is removed |
| CN110453934A (en) * | 2019-08-26 | 2019-11-15 | 攀钢集团工程技术有限公司 | Method for dismounting for large-scale steel structure roofing workshop |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102556853B (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101880006B (en) | Roll-on device and method for large fixed type rotary crane | |
| CN104805773A (en) | Segmental assembled bridge girder erection machine for construction of small curved bridge | |
| CN103669215A (en) | Vertical-horizontal overall-sliding type side mold of fulcrum-few support | |
| CN109653105A (en) | Box girder bridge cantilever construction main truss cradle system and its application method | |
| CN102556853B (en) | Metallurgical crane dismantling method | |
| CN102408069A (en) | Rail-type gantry crane | |
| CN103662704A (en) | Rail-spanning transportation assembly wagon | |
| KR101234090B1 (en) | Method for changing girder of railway plate girder bridge | |
| CN110758421B (en) | Vehicle maintenance vehicle suitable for air rail transit system | |
| CN209873593U (en) | Bridge erecting machine | |
| CN209652772U (en) | Box girder bridge cantilever construction main truss cradle system | |
| KR101665291B1 (en) | Two hook two trolley type crane for a ship | |
| JP2021021252A (en) | Viaduct replacing method | |
| CN206800228U (en) | Remove the frame mounting of arch bridge | |
| CN205171288U (en) | Magnetism floats section of track and moves gantry crane | |
| CN211619794U (en) | Low-space simple gantry hoisting device | |
| CN211769751U (en) | Hanging beam device for lifting double overhead travelling cranes | |
| JP6873435B2 (en) | Suspended scaffolding and its erection method | |
| CN102229408A (en) | Bridge crane for mine | |
| CN207811107U (en) | A kind of three trolley bridge crane of three beam | |
| CN213011191U (en) | Crane steel wire rope replacing support | |
| CN102153017A (en) | Bridge crane trolley for mine | |
| CN218371201U (en) | Hoisting device of converter dismantling machine | |
| JP2009242081A (en) | Lane moving method and device using carriage of rail mount type portal crane | |
| CN202022668U (en) | Mine bridge crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |