CN101215615A - Combination method mounting technique for ultra-large type steel converter - Google Patents
Combination method mounting technique for ultra-large type steel converter Download PDFInfo
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- CN101215615A CN101215615A CNA2007101919742A CN200710191974A CN101215615A CN 101215615 A CN101215615 A CN 101215615A CN A2007101919742 A CNA2007101919742 A CN A2007101919742A CN 200710191974 A CN200710191974 A CN 200710191974A CN 101215615 A CN101215615 A CN 101215615A
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Abstract
The invention relates to a combination method installation technology for an ultra large steel-smelting converter, belonging to the installation of steel-smelting devices, which is characterized in that respectively installing hydraulic presses and cylindrical safety cushion blocks on the upper portions of four vertical props of a supporting platform relatively to the chassis portions of bearing bases on the driving side and non driving side of the converter, installing pad beams which are respectively indentified with height marks of the chassis of the bearing bases and are integrated together on steel pillars or steel beams of the operational platform on the front of the converter, assembling three components of the converter on charging bays, suspending the three components on the hydraulic presses on the supporting platform and the pad beams which are provided with rolling rods and assembling integrally, regulating the hydraulic presses to make each supporting point with balance force, installing a winding engine and a main pulley block on the advancing end of a ladle car to drag the ladle car and the supporting platform, arranging a single-sheaved block on the driving lateral bearing base which is dragged by a line hook of a steel-melting bay, correcting directions by regulating the rolling rods, and slowly dragging the whole converter to the installation position of the steel-melting bay, which is safe and reliable, and has high effect and strong operability.
Description
Technical field
The invention belongs to steelmaking equipment and install, especially relate to a kind of installation of large-scale or ultra-large type steel-making converter.
Background technology
Because it is big that large-scale or ultra-large type steel-making converter has a volume, Heavy Weight, weigh after the assembling hundreds of ton even nearly kiloton, steel-making stride can not with driving directly lifting put in place, install large-scale at present both at home and abroad or the ultra-large type steel-making converter generally adopts " sliding method " or " chassis method " to install; Sliding method: stride reinforced during assembling, with the three-major-items of reinforced large bridge crane of striding: backing ring and bearing support with revolving furnace body, furnace shell and converter transmission mechanism are assembled into integral body, integral slipping is to making steel the installation site of striding then, adopt sliding method to install at Shanghai Baosteel stainless steel steel-making engineering transfer stove, but the steel column basis and the steel column of flushing and casting platform, girder steel all must strengthen design loading, must change the design of bearing base, strengthened construction investment, also there is security risk, so sliding method is installed large-scale or ultra-large type steel-making converter, construction investment is big and have a security risk; Large-scale at present or ultra-large type steel-making converter is installed the general ladle chassis method that adopts, promptly on the ladle chassis, set up support bed, but can only be with two big parts of the revolving furnace body that assembles: backing ring and bearing support and furnace shell, integral body moves to the installation site, poor stability when mobile can't be simultaneously be in place the transmission mechanism of steel-making converter.
Summary of the invention
The combined method field engineering that the purpose of this invention is to provide a kind of ultra-large type steel-making converter solves the problem that large-scale or ultra-large type steel-making converter is installed effectively, simple, safe and reliable, effect is high, workable.
The object of the present invention is achieved like this: a kind of combined method field engineering of ultra-large type steel-making converter, be installed as the basis with the chassis method, comprise ladle car and support bed, be benchmark promptly with the converter medullary ray, utilize the walking track of ± 0.00 ladle car, on two ladle cars on this walking track, support bed is set, it is characterized in that installing respectively oil press and cylindricality insurance cushion block at the top of four root posts of support bed, two outsides about the walking track, the position of the base of the back side of the converter of striding corresponding to steel-making and the bearing support of non-back side, on the steel column of intrinsic flushing and casting platform or girder steel, bearing beam is installed, adjusting pad is set with the adjusting pad depth of beam between bearing beam and steel column, bearing beam is consistent with the base absolute altitude of converter back side and non-back side bearing support respectively and fuse, rolling bar is set on bearing beam, and this rolling bar diameter is 50-60mm; Simultaneously, the cruciform support is established in weldering between adjacent two steel columns, this support can be 20#-30#H shaped steel, to increase the stability of steel column and service platform, at the reinforced three-major-items of assembling revolving furnace body respectively of striding: backing ring and bearing support, furnace shell and converter transmission rig, respectively these three-major-items are lifted support bed then and be equipped with on the bearing beam of rolling bar and be assembled into converter integral body, the backing ring of converter is bearing on the oil press at four root post tops, and the bearing block support of converter back side and non-back side is on the rolling bar above the bearing beam, make bearing beam stressed, adjust oil press, make each supporting-point stress equalization, in addition, in the preceding inlet side of ladle car hoisting machine and head pulley group are set, this windlass is 5t-8t, and the head pulley group is 30t-40t, the traction ladle car and on support bed, simultaneously establish the 10t-15t single-sheaved block at back side bearing support place, the driving main hook traction of striding with steel-making with the adjustment rolling bar direction of rectifying a deviation, slowly is drawn to converter integral body to make steel and strides on the installation site.
The combined method field engineering of ultra-large type steel-making converter, its installation steps are as follows: 1, install to prepare: flushing and casting platform, bearing support base base point of installation and center target are buried underground, support bed is made, bearing beam is made, the bearing support base is installed and the torsion bar base installs 2, assembling backing ring and bearing support 3, lifting backing ring and bearing support 4, furnace shell group pair with backing ring assembling 5, assemble the installation of transmission rig 6. integral shifts
Wherein
1, preparation is installed:
1.1, flushing and casting platform (see figure 2), remove and reserve backing ring, furnace shell and transmission rig assembling desired position, the steel column of intrinsic flushing and casting platform, girder steel must be in place, and ladle car walking track construction finishes under the stove, on this walking track ladle car are set; Two outsides about the walking track, the position of the base of the back side of the converter of striding corresponding to steel-making and the bearing support of non-back side on the steel column of intrinsic flushing and casting platform bearing beam is installed, but the stokehold steel column is treated could install after converter is in place.
1.2, bearing support base base point of installation and center target bury underground: be reference measurement converter mounting center and bury center target (see figure 3) underground with the factory building columns base center, datum grade with SURVEYING CONTROL NETWORK is that reference point is buried reference point underground, regularly settlement observation is carried out on the basis.
1.3, support bed makes
Force Calculation is installed in converter, make support bed according to the data calculated that each supporting-point is stressed, support bed making (see figure 4) is the support zone corresponding to backing ring 9, adopt four uniform roll-welding steel pipes of symmetry to make the square framework as column 5, thickness of steel pipe is 12-16mm, load onto at the equal balanced welding in upper and lower of column 5 in twos, bottom end rail 2,4, on, bottom end rail 2,4 is H shaped steel 30#-40#, on with one side, bottom end rail 2, the diagonal angle channel-section steel diagonal ligament 3 of welding strip plate respectively between 4, channel-section steel can be 20#-30#, make support bed form stable skeleton construction, then this support bed is welded on the base plate of two ladle cars 6 that afterbody docks, oil press 1 and cylindricality insurance cushion block 12 is installed respectively in the upper end of each column 5.
1.4, bearing beam makes
Make bearing beam according to the data calculated that each supporting-point is stressed, bearing beam is made (see figure 5), and bearing beam 7 is rectangular I-steel structure weldment, and top board, base plate and web are Plate Steel, and thickness is 30-40mm, and the web both sides are the uniform gusset that is welded with of symmetry all.
1.5, the bearing support base installs
Annotate: the bearing support base is meant the bearing support base of converter back side and non-back side, describes below to be called for short the bearing support base
1.5.1, the bearing support base must conscientiously remove the burr on the base upper surface before installing, and marks base and cross centre line is installed and stamped foreign dotting punch, marks the concrete measuring position of placement water level gauge;
1.5.2, according to the target center of measure throwing in, the center coil holder is set, with drawing steel wire messenger wire drop method check mounting center, with N3 precision level measuring shaft bearing base installation absolute altitude and levelness;
1.5.3, bearing support base installation specification is as follows:
The bearing support base adopts no parallels that method is installed or has parallels that method is installed.
A, mobile, inboardend bearing support vertical, horizontal central limit deviation ± 1mm;
The width between centers L1 of b, diaxon bearing, L2 limit deviation ± 1mm, diagonal L 3, L4 deviation＜4mm;
Absolute altitude limit deviation ± the 5mm of c, bearing support axis, the diaxon bearing high and low poor＜1mm;
D, bearing support be≤0.1/1000 to the levelness tolerance in length and breadth, its vergence direction furnace shell one side is suitable on the low side; The transverse horizontal degree is≤0.1/1000.
Centering is through after the assay was approved, at the mark of bearing support base subscript medullary ray, so that after converter moves into place, and accurately contraposition.
1.5.4, bearing support base back-grouting
The surface of base water is rinsed well before a, the back-grouting;
Wall screw sleeve pipe winding flax silk suitable for reading 200mm before b, the back-grouting, and use the rubber plate capping, prevent that concrete from entering in the wall screw sleeve pipe; For guaranteeing that wall screw is in the central position of base aperture, must be around wall screw and base aperture contact position choker block sheet, treat to extract pad again out after concrete reaches design strength after the back-grouting, tighten wall screw.
C, back-grouting material must be used the MG-40 material, during grouting concrete from base one end pour into, tamping, treating that the back-grouting material is discharged from venting hole can; After the intensity of back-grouting reaches design requirements, unclamp jackscrew after, tighten the lower margin nut.
1.6, the installation of torsion bar base
Adopt seat slurry method to place parallels, the torsion bar device is installed parallels and is arranged (see figure 6),
The back-grouting of torsion bar base device, treat that converter moves into place after, tangential key are assembled, the torsion bar base device with carry out after transmission rig is connected so that adjust absolute altitude is installed.
2, assembling backing ring and bearing support
2.1, backing ring 9 is because volume, weight are big, on reinforced oil press 1 of striding on-the-spot corresponding intrument in addition and cylindricality insurance cushion block 12, assemble the welding (see figure 7), should guarantee during assembling that backing ring 9 placing directions are consistent with installation direction, after treating that backing ring 9 whole assembling welding finish, through after the assay was approved, carry out ball socketed bearing and bearing support assembling in the reinforced assembling place of striding.
2.2, ball socketed bearing assembling
2.2.1, want marking during the bearing support dismounting, check mark during assembling, notice that each trim is coated with lock packing, in case leak-stopping oil;
2.2.2, the assembling before should conscientiously see wiring layout, check whether complete, the not damaged of spare and accessory parts of assembling;
2.2.3, clean gudgeon and bearing, remove the burr on the gudgeon, with the external diameter of inside and outside milscale or inside and outside clamp repetition measurement bearing bore diameter and axle journal, and, be placed on the axle journal in advance with the ring of bearing inboard;
2.2.4, adopt electrically heated oil bath method, make round oil groove electricity consumption heating bearing with δ=6mm steel plate, the oil temperature should be controlled in 100 ℃, about 2 hours of heat-up time, when treating that temperature equalisation is delivered to bearing, check bearing bore diameter with lining bar again, but when bearing reaches fitted position, hang out oil sump and assemble rapidly.
3, lifting backing ring and bearing support
After backing ring 9 is assembled with bearing support, directly lift with the crossbeam of reinforced inter-bank car owner hook on four oil presses 1 and bearing beam 7 of support bed, select suspender for use according to hanging thing weight, cable wire is wrapped on the root both sides backing ring of gudgeon, two strands of cable wires of every side are with unloading the padlock jail;
The position that backing ring 9 and bearing support hang: should cross centre line be installed with bearing support and be as the criterion; On the bearing beam 7 at axial centre place, bearing support installation site, emit cross centre line, and make and move sign;
After backing ring 9 and bearing support hang onto on four oil presses 1 of support bed and the bearing beam 7, four oil presses, 1 synchronous jack-up on the column 5, with rolling bar 11 be placed on below the bearing support be bearing beam 7 above, adjust the weight that support bed column 5 and bearing beam 7 are respectively born with four oil presses 1 then, 7 of bearing beams are born the weight that transmission rig promptly hangs the tooth case, allow cylindricality insure cushion block 12 and be 3-5mm, in case furnace shell 8 and transmission rig are assembled in oil press 1 release then from backing ring 9.(seeing Fig. 8 and Fig. 8-1)
4, group is to furnace shell
5, furnace shell and backing ring assembling
5.1, furnace shell 8 lifting: the furnace bottom that assembles, body of heater middle part furnace shell weight are big, with reinforced driving main hook crossbeam lifting of striding, main suspender: four of 80t shackles, stress point everywhere, every 2 strands of cable wires, cable wire specification: Φ 60-6 * 37;
5.2, the gap and the modes of circle assembling in furnace shell 8 cylindricals and the backing ring 9, by the design paper requirement, carry out according to the practical situation at scene.
6, assembling transmission rig
6.1, transmission rig is the flexible transmissions of integral 4 point toothing, manufactory generally divides four: the master wheel assembly, go up lower box and a transmission and torsion bar device;
6.2, on ground with three: the master wheel assembly, go up lower box and a drive assembly is integral, with reinforced inter-bank car owner hook crossbeam, three integral body are sling, together pack on the ring trunnion, should remove the burr on gudgeon, the master wheel axis hole before the assembling, with the external diameter of inside and outside milscale repetition measurement shaft hole diameter and axle journal, guarantee to have the fit-up gap; Adjust levels with 2 20t chain blocks during lifting, notice that the tangential key of master wheel are consistent with ring trunnion, during suit, the driving main hook falls after rise wants accurate slow toward gudgeon on, and push up to lira or with the 50t screw block inward with 10t tension cucurbit both sides;
6.3, transmission rig when assembling, notice that each trim will be coated with seal gum, prevents leakage of oil according to the identity markings assembling;
6.4, the assembling of the two pairs of tangential key is by figure, the master wheel side is a positioning key, gudgeon side load key must not be adorned mistake; One auxiliary bond inclined-plane with 1: 100 when assembling matches, two working faces match with the race working face in addition, grind pre-allowance: the every limit 0.15-0.2mm of two working faces of every key, to grind the back contact surface and be not less than 80%, tangential key assembling optimum position is below ring trunnion;
6.5, the every pair of key leaves 2mm process redundancy when making, and according to surveying size after the field assembly, determines process redundancy.
7. the converter integral shift is installed
Utilize ladle car 6 as mobile platform, four post support bed are established in weldering on two ladle cars 6, corresponding to the back side bearing support 14 of converter and the base of non-back side bearing support 10, two bearing beams 7 are installed on the steel column 13 of flushing and casting platform, bearing beam adds the height that the 20mm adjusting pad is adjusted bearing beam 7 for 7 times, and bearing beam 7 fuses with the bearing support base and keeps absolute altitude consistent; Stride the converter that assembles with large bridge crane reinforced, integral body is carried on the oil press 1 of four root posts, 5 tops of support bed and on the rolling bar 11 of bearing beam 7, windlass and head pulley group 15 are installed in preceding inlet side at ladle car 6, utilize 5t-8t windlass and 30t-40t head pulley group 15 traction ladle cars 6 and on support bed, simultaneously establish 10t-15t single-sheaved block group 16 at back side bearing support 14 places, the driving main hook of striding with steel-making draws, with adjusting rolling bar 11 direction of rectifying a deviation, slowly being drawn to steel-making strides on the installation site, when converter moves to the installation site, be that bearing support cross centre mark is when overlapping with bearing support base mark, the welding link stopper, four 1 while of oil press jack-up, to be placed on after rolling bar 11 below the bearing support withdraws from, four oil presses 1 fall after rise simultaneously, fixed bearing block and revolving furnace body, and converter integral body moves into place (see figure 9).
The combined method field engineering of the ultra-large type steel-making converter that the utility model proposed solves problem large-scale or that the ultra-large type steel-making converter is installed effectively, and is simple, safe and reliable, workable, reduced mounting cost, shortened the duration.
Now the combined method field engineering of the ultra-large type steel-making converter of in conjunction with the accompanying drawings and embodiments the utility model being carried is further described.
Description of drawings
Fig. 1 is the installation steps schema of the combined method field engineering of ultra-large type steel-making converter.
Fig. 2 is a flushing and casting platform scheme of installation
Fig. 3 is that bearing support base base point of installation and center target are buried the layout synoptic diagram underground
Fig. 4 is that support bed is made synoptic diagram
Fig. 5 is that bearing beam is made synoptic diagram
Fig. 6 is a torsion bar ram pack layout drawing
Fig. 7 is that group is to furnace shell and backing ring and bearing support assembling synoptic diagram
Fig. 8 is lifting backing ring and bearing support synoptic diagram
Fig. 8-the 1st, B enlarged diagram among Fig. 8
Fig. 9 is a converter integral shift scheme of installation
Among Fig. 4: 1, oil press 2, top end rail 3, diagonal ligament 4, bottom end rail 5, column 6, ladle car
Among Fig. 5: 7, bearing beam
Among Fig. 7: 8, protective case 9, backing ring
Among Fig. 8: 10, non-back side bearing support 11, rolling bar 13, steel column 14, back side bearing support
Fig. 8-1:12, insurance cushion block
Among Fig. 9: 15, head pulley group 16, single-sheaved block group
Embodiment
Embodiment: 2 300t converters in the horse steel newly developed area of undertaking the construction of by China No.17 Metallurgy Construction Co., Ltd, in construction, adopt combined method to install, there be the reinforced of large bridge crane to stride in the factory building, with the converter three-major-items: backing ring and bearing support: 302t, furnace shell and " VAI " Con Link three-link hitch: 260t and transmission rig: 130t, be assembled into converter integral body, gross weight; 692t; The whole support of converter is in support bed and add on the bearing beam of rolling bar; Chassis is that ladle car moves with 5t windlass and the traction of 30t head pulley group, and back side bearing support place is drawn to steel-making jointly and strides on the converter installation site with 10t single-sheaved block group and the traction of steel-making inter-bank car owner hook, and the converter complete installation is in place.
First converter 13:00 on October 20th, 2006 begins to stride from feeding in raw material mobile, and 13:40 all moves on to steel-making reposefully and strides on the furnace axis bearing position base, only uses 40 minutes; Second converter 15:00 on December 22nd, 2006 begins to stride from feeding in raw material mobile, and 15:38 all moves on on the furnace axis bearing position base reposefully, only uses 38 minutes, and the ratio of precision that once moves into place increases for the first time; Do not have security incident in the construction process, the fastest record is moved in the wound converter, and installation quality is good, and the converter current production status is good.
The combined method installing converter has the following advantages:
1. safe and reliable: combined method is installed the 300t converter and is compared with the chassis method, has overcome in mobile converter Shaking phenomenon in the journey; It is the load of ladle car that the bearing beam of combined method has not only been shared chassis, and rises Stable and safety effect have been arrived; Adopt the electric oil pressure machine, the load of each stress point that can evenly distribute, converter The moving process safety and reliability.
2. simple: as not need to resemble and considered by design department the sliding method: the base of flushing and casting platform Plinth, steel column and girder steel all will strengthen Design cooling load, the design of change bearing base; Saved construction investment, Simple, workable.
3. work efficiency height: the converter transmission mechanism that assembles is moved into place simultaneously, avoided striding branch in steel-making The sheet assembling also need be set up the hard work of hoisting machine tool, owing to adopted the sassafras that rubs that rolls, makes mobile more province Power, translational speed is fast, has shortened the duration.
4. installation accuracy height: the rolling bar that arranges on the bearing beam of combined method, make the adjustment center more convenient, install Errors of centration is little.
5, economic benefit height: reduced installation fee.
Claims (3)
1. the combined method field engineering of a ultra-large type steel-making converter, comprise ladle car and support bed, it is characterized in that installing respectively oil press and cylindricality insurance cushion block at the top of four root posts of support bed, two outsides about the walking track, the position of the base of the back side of the converter of striding corresponding to steel-making and the bearing support of non-back side, on the steel column of intrinsic flushing and casting platform or girder steel, bearing beam is installed, adjusting pad is set with the adjusting pad depth of beam between bearing beam and steel column, bearing beam is consistent with the base absolute altitude of converter back side and non-back side bearing support respectively and fuse, rolling bar is set on bearing beam, simultaneously, the cruciform support is established in weldering between steel column and service platform, to increase the stability of service platform and steel column, at the reinforced three-major-items of assembling revolving furnace body respectively of striding: backing ring and bearing support, furnace shell and converter transmission rig, respectively these three-major-items are lifted support bed then and be equipped with on the bearing beam of rolling bar and be assembled into converter integral body, the backing ring of converter is bearing on the oil press at four root post tops and the bearing block support of converter back side and non-back side on the rolling bar above the bearing beam, make bearing beam stressed, adjust oil press, make each supporting-point stress equalization, in addition, hoisting machine and head pulley group are installed in preceding inlet side at ladle car, the traction ladle car and on support bed, simultaneously establish single-sheaved block at back side bearing support place, the driving main hook of striding with steel-making draws, adjust the rolling bar direction of rectifying a deviation, converter integral body slowly is drawn to steel-making strides on the installation site;
The installation steps of the combined method field engineering of ultra-large type steel-making converter are as follows:
(1), preparation is installed: flushing and casting platform, bearing support base base point of installation and center target are buried underground, support bed is made, bearing beam is made, the bearing support base is installed and the torsion bar base is installed;
(2), assembling backing ring and bearing support;
(3), lifting backing ring and bearing support;
(4), furnace shell group pair and backing ring assembling;
(5), assembling transmission rig;
(6). integral shift is installed;
Wherein
Install and prepare:
The flushing and casting platform: remove and reserve backing ring, furnace shell and transmission rig assembling desired position, ladle car walking track construction finishes under the stove; Two outsides about the walking track, bearing beam is installed in the position of the base of the back side of the converter of striding corresponding to steel-making and the bearing support of non-back side on the steel column of intrinsic flushing and casting platform;
Support bed is made: Force Calculation is installed in converter, make support bed according to the data calculated that each supporting-point is stressed; The support bed making is to make the square framework corresponding to uniform four roll-welding steel pipes of support zone employing symmetry of backing ring (9) as column (5), thickness of steel pipe is 12-16mm, load onto at the equal balanced welding in upper and lower of column (5) in twos, bottom end rail (2,4), on, bottom end rail (2,4) be H shaped steel, on with one side, bottom end rail (2,4) the diagonal angle channel-section steel diagonal ligament (3) of welding strip plate respectively between, make support bed form stable skeleton construction, then support bed is welded on the base plate of two buggy ladles (6) that afterbody docks, oil press (1) and cylindricality insurance cushion block (12) is installed respectively in the upper end of each column (5);
Bearing beam is made: make bearing beam according to the data calculated that each supporting-point is stressed, bearing beam (7) is rectangular I-steel structure weldment, and top board, base plate and web are Plate Steel, and thickness is 30-40mm, and the web both sides are the uniform gusset that is welded with of symmetry all;
Assembling backing ring and bearing support:
Backing ring (9) insures on the cushion block (12) in reinforced oil press (1) of striding on-the-spot corresponding intrument in addition and cylindricality assembles welding, should guarantee during assembling that backing ring (9) placing direction is consistent with installation direction, after treating that the whole assembling welding of backing ring (9) finish, through after the assay was approved, carry out ball socketed bearing and bearing support assembling in the reinforced assembling place of striding;
Lifting backing ring and bearing support:
Backing ring (9) uses the crossbeam of reinforced inter-bank car owner hook directly to lift on four oil presses (1) and bearing beam (7) of support bed after assembling with bearing support, selects suspender for use according to hanging thing weight; Cable wire is wrapped on the root both sides backing ring of gudgeon, and two strands of cable wires of every side are with unloading the padlock jail;
The position that bearing support and backing ring (9) hang: should cross centre line be installed with bearing support and be as the criterion; On the bearing beam (7) at axial centre place, bearing support installation site, emit cross centre line, and make and move sign;
Bearing support and backing ring (9) hang onto after four oil presses (1) of support bed and bearing beam (7) go up, four oil presses (1) on the column (5) are jack-up synchronously, with rolling bar (11) be placed on below the bearing support be bearing beam (7) above, the weight of using four oil presses (1) adjustment support bed column (5) and bearing beam (7) respectively to bear then, bearing beam (7) is only born the weight that transmission rig promptly hangs the tooth case, allow the insurance cushion block (12) be 3-5mm from backing ring (9), in case furnace shell (8) and transmission rig are assembled in oil press (1) release then;
The converter integral shift is installed: utilize ladle car (6) as mobile platform, go up weldering at two ladle cars (6) and establish four post support bed, corresponding to the back side bearing support (14) of converter and the base of non-back side bearing support (10), steel column on the flushing and casting platform (13) is gone up two bearing beams (7) is installed, add the 20mm adjusting pad under the bearing beam (7) and adjust the height of bearing beam (7), bearing beam (7) fuses with the bearing support base and keeps absolute altitude consistent; Stride the converter that assembles with large bridge crane reinforced, the oil press (1) that integral body is carried on four root posts (5) top of support bed go up and the rolling bar (11) of bearing beam (7) on, windlass and head pulley group (15) are installed in preceding inlet side at ladle car (6), utilize 5t-8t windlass and 30t-40t head pulley group (15) traction ladle car (6) and on support bed, simultaneously locate to establish 10t-15t single-sheaved block group (16) at back side bearing support (14), the driving main hook of striding with steel-making draws, adjust rolling bar (11) direction of rectifying a deviation, slowly be drawn to steel-making and stride on the installation site; When converter moves to the installation site, when promptly bearing support cross centre mark overlaps with bearing support base mark, the welding link stopper, four oil presses (1) are jack-up simultaneously, will be placed on after rolling bar (11) below the bearing support withdraws from; Four oil presses (1) fall after rise simultaneously, fixed bearing block and revolving furnace body.
2. the combined method field engineering of ultra-large type steel-making converter according to claim 1 is characterized in that the H shaped steel of upper and lower crossbeam (2,4) is 30#-40#.
3. the combined method field engineering of ultra-large type steel-making converter according to claim 1, the channel-section steel that it is characterized in that diagonal ligament (3) is 20#-40#.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101919742A CN100526000C (en) | 2007-12-28 | 2007-12-28 | Combination method mounting technique for ultra-large type steel converter |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101919742A CN100526000C (en) | 2007-12-28 | 2007-12-28 | Combination method mounting technique for ultra-large type steel converter |
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| CN100526000C CN100526000C (en) | 2009-08-12 |
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