CN102094106A - Quick installation method for large four-point suspended type converter - Google Patents
Quick installation method for large four-point suspended type converter Download PDFInfo
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- CN102094106A CN102094106A CN 201110067838 CN201110067838A CN102094106A CN 102094106 A CN102094106 A CN 102094106A CN 201110067838 CN201110067838 CN 201110067838 CN 201110067838 A CN201110067838 A CN 201110067838A CN 102094106 A CN102094106 A CN 102094106A
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Abstract
The invention provides an installation method for a large four-point suspended type converter, which ensures short installation construction time and safe and reliable construction. The method comprises the following steps of: arranging a high rack on a ladle buggy; arranging a bearing block on a trunnion pin on a trunnion assembly platform; arranging a hanging mechanism on the trunnion; welding upper and lower sections of furnace shell assemblies on a furnace shell welding platform to obtain a furnace shell; welding a plurality of temporary positioning support plates at the periphery of the furnace shell, arranging a jack used for jacking the trunnion and a base plate on the high rack, and hoisting and placing the trunnion onto the jack and the base plate on the high rack; hoisting the furnace shell, and putting into the trunnion, so that the temporary positioning support plates support the trunnion; connecting the hanging mechanism and the furnace shell; arranging a bearing block support on a converter foundation; ensuring that the upper surface of the bearing block support is lower than the lower surface of the bearing block; moving the ladle buggy to make the bearing block positioned on the upper part of the bearing block support; adjusting the jack and the base plate to make the bearing block arranged on the bearing block support; and arranging a tilting mechanism and detaching the temporary positioning support plates.
Description
Technical field
The present invention relates to four-point suspended mammoth conveter method for rapidly mounting.
Background technology
Four-point suspended converter mainly is made up of furnace shell, backing ring, four hanging mechanisms, two ring trunnions, two bearing supports, two bearing support bearings, tilting mechanism etc.Be connected with four hanging mechanisms on the backing ring, four hanging mechanisms link to each other with furnace shell.Bearing in two ring trunnions and two bearing supports is rotationally connected; Bearing support is fixed on the bearing support bearing.Tilting mechanism links to each other with a ring trunnion, to drive rotations such as backing ring, furnace shell.
Four-point suspended mammoth conveter refers generally to single stove (molten steel) output at the four-point suspended converter more than 200 tons.For example, be 250 tons four-point suspended mammoth conveter for single stove (molten steel) output, the about 365t of backing ring (containing hanging mechanism, bearing support) gross weight, heavily about 107 tons of tilting mechanism, the heavily about 180t of furnace shell.Fast Installation how, shortening the engineering time is a difficult problem.
Summary of the invention
The purpose of this invention is to provide short, the reliable four-point suspended mammoth conveter installation method of construction safety of a kind of installation time.
Four-point suspended mammoth conveter method for rapidly mounting of the present invention comprises the steps:
A, on the ladle chassis, be provided with one and be used to support the overhead of backing ring;
B, on the backing ring assembly platform, bearing support is installed on the ring trunnion; Four hanging mechanisms are installed on the backing ring;
C, when step b carries out, on the furnace shell jig, up and down sectional furnace shell assembly is welded at furnace shell; And weld a plurality of interim positioning supports plates at the periphery of furnace shell,
D, overheadly go up to place a plurality of screw block and backing plates that are used for the jacking backing ring, with the backing ring lifting and be placed on the screw block and backing plate on overhead; Furnace shell is lifted and is placed in the backing ring, make interim positioning supports plate be supported on the backing ring;
E, hanging mechanism is linked to each other with furnace shell;
F, the bearing support bearing is installed on the basis converter; The upper surface of bearing support bearing is lower than the lower surface of bearing support;
G, mobile ladle chassis make bearing seat in bearing support bearing top;
H, adjusting screw block and backing plate make bearing support be placed on the bearing support bearing;
I, installation tilting mechanism are removed interim positioning supports plate.
Beneficial effect of the present invention: 1, independently on the assembly platform, the assembling duration is shortened in same time period assembling, improves effect for furnace shell, each leisure of backing ring.
2, the ladle chassis is provided with and supports the overhead of backing ring, and after devices such as backing ring, furnace shell, hanging mechanism and bearing support installation connection was finished, mobile ladle chassis can move to them the bearing support bearing top on the basis converter easily; Also can the reduction of erection time.
3, use a plurality of interim positioning supports plates that furnace shell is supported on the backing ring, be convenient to being connected the hanging mechanism on the backing ring and furnace shell.
4, with screw block and backing plate jack-up backing ring, make bearing support drop on the bearing support bearing by regulating screw block and backing plate, effectively simple, save executive cost.
Above-mentioned installation method, adopting the non junction rope during lifting is rigging.Non junction rope flexibility is good, intensity is high, the lifting space requirement is little, is specially adapted to the limited or super-huge hoisting engineering in space.
Above-mentioned installation method, overhead eight root posts that comprise, eight root posts are that symmetry axis is symmetrical arranged with the chassis axis of pitch perpendicular to ladle chassis travel direction, wherein form by being the two sections that removably connect at four root posts of chassis axis of pitch one side; The junction of two sections is lower than the bottom of furnace shell.We know that behind four-point suspended mammoth conveter installation in position, the steelframe on the ladle chassis will be removed (to carry out second stage employ).If eight root posts all are an integral body that comprises dismounting, be mobile during steelframe, will block four root posts of chassis axis of pitch one side, steelframe and ladle chassis could move to the opposite side of intercepted column.For the ease of moving of steelframe, also be convenient to the utilization once more of steelframe, four root posts of chassis axis of pitch one side are formed by being the two sections that removably connect.Like this, before mobile overhead, only need get final product the dismounting of the epimere of four root posts.And, utilize once more when overhead, two sections are coupled together get final product.
Above-mentioned installation method, backing ring assembly platform comprise a plurality of slab groups and are placed on height adjuster on the slab group; The slab group is stacked by dummy sketch and forms; Backing ring bottom and ring trunnion bottom are placed on the height adjuster.Height adjuster comprises with the inclined-plane and becomes the moving adjustment piece of sliding contact, quiet adjustment piece, adjusts bolt and rotates and be arranged on the quiet adjustment piece, adjusts bolt and is threaded with moving adjustment piece; When rotating the adjustment bolt, the moving piece of adjusting can move with respect to quiet adjustment piece along the inclined-plane.This backing ring assembly platform need not independent making, stacks with dummy sketch to get final product, and is simple and reliable, and quick construction is cheap.Can adjust height by height adjuster.
Above-mentioned installation method, described screw block are four, and described interim positioning supports plate is eight, and the slab group is ten.
Description of drawings
Fig. 1 is overhead front view.
Fig. 2 is overhead (removing stull between platform, the column top etc.) side-view (Fig. 1 is a left view)
Fig. 3 is the vertical view of the column among Fig. 2.
Fig. 4 is the connection diagram of column and platform.
Fig. 5 is the column synoptic diagram of chassis axis of pitch one side.
Fig. 6 is the synoptic diagram of backing ring on the backing ring assembly platform.
Fig. 7 is the A-A amplification view of Fig. 6.
Furnace shell hypomere synoptic diagram after Fig. 8 welding.
Fig. 9 is that backing ring (having removed bearing support) is placed on the synoptic diagram on overhead.
Figure 10 is that the furnace shell hypomere is held in place the synoptic diagram on the backing ring on overhead.
Figure 11 is the relative position vertical view of furnace shell hypomere, backing ring, interim positioning supports plate.
Figure 12 is that backing ring, furnace shell etc. fall into the synoptic diagram on the bearing support.
Figure 13 withdraws from when overhead, with the synoptic diagram after the epimere dismounting of four root posts.
Figure 14 withdraws from when overhead, with the overhead side-view after the epimere dismounting of four root posts.
Figure 15 is a converter synoptic diagram in place.
Figure 16 is the installation technology schema of 2 four-point suspended mammoth conveters
Embodiment
2 single stoves (molten steel) output is the installation of 250 tons four-point suspended mammoth conveter.
1, general introduction
Newly-built 2 block converters of certain steel mill are large-scale four-point suspended top and bottom combined blown converters, and it mainly is made up of furnace shell, backing ring, four hanging mechanisms, two ring trunnions, two bearing supports, two bearing support bearings, tilting mechanism etc.Be connected with four hanging mechanisms on the backing ring, four hanging mechanisms link to each other with furnace shell.Bearing in two ring trunnions and two bearing supports is rotationally connected; Bearing support is fixed on the bearing support bearing.Tilting mechanism links to each other with a ring trunnion, to drive rotations such as backing ring, furnace shell.
According to this steel mill's overall network plan requirement, the duration only is one month at interval, and promptly 2 block converters must be constructed simultaneously, and construction task is tight; 2 block converters are positioned at furnace bay, and 5. line-7. is between line, and the workyard is narrow, and difficulty of construction is big.This constructional method is according to engineering characteristic, and the equipment self characteristics have formed one and overlapped operating technique applied widely, remarkable in economical benefits.
2, constructional method determines
2.1 the assembling of two cover converter bodies, lifting transportation, installation in position
The assembling of backing ring and furnace shell, installation utilize reinforced 420/80t driving lifting of striding to transport.The construction of integral translation method is adopted in the installation of backing ring and furnace shell.Be about to 2 ladle chassis connects temporarily, by channel-section steel firm be welded into as a whole, it is overhead to put a steel construction jacking on the ladle chassis, overhead and ladle chassis adopts the segmentation welding, form a firm integral body, overhead going up placed 4 300t whisky jack, respectively backing ring and furnace shell are hung overhead on, (this moment, the bearing support lower surface was higher than bearing support bearing 50mm with backing plate wedging load, the hydraulic pressure top is in the state of not stressing), traction is transferred to furnace axis bearing bearing place with backing ring and furnace shell to the ladle chassis to adopt 3 tons of elevators, utilizes the jacking of 4 300t whisky jack then, take out backing plate, slowly descend until falling on the bearing support bearing.
At 2 the cover converters repeat to install, simultaneously the construction, the narrow and small characteristics in place, and the duration is short and safe requirement, on-site actual situations in conjunction with this converter construction, our scene of having taked is set up furnace shell, 2 assembly platforms of backing ring, the constructional method that furnace shell, backing ring can be assembled simultaneously, lift simultaneously.To guarantee that the first cover furnace shell, backing ring finish, and just carry out the second cover furnace shell, backing ring assembling.By reasonable control, guarantee that two cover converters are from being assembled into the reasonable link of lifting, to reach the purpose of reduction of erection time, Fast Installation to packaging technology, hoisting.
2.2 become the installation of sleeve-bearing
According to the mounting process requirement, bearing support and the partial installation of bearing support bearing.Be that the bearing support bearing is installed on the basis converter in advance, adopt trapezoid seat slurry cassette holder slurry method construction; Bearing support is installed on the ring trunnion in advance, adopts the construction of electrically heated oil bath method.
2.3 the installation adjustment of four-point suspension mechanism
By levelling,, measure unwrapping wire then, to guarantee four-point suspension institution freedom space to determine the four-point suspension mechanism position to backing ring, furnace shell relative position.
Backing ring adjustment location adopts whisky jack to be aided with taper liner plate levelling capturing, and furnace shell adjustment location adopts 8 interim positioning supports plates to be aided with producer's sign levelling capturing that dispatches from the factory.
2.4 the hoisted in position of tiling arrangement secondary speed-reducing machine
Tilting mechanism secondary speed-reducing machine hoisted in position is one of important procedure of converter installation.Tilting mechanism is positioned at furnace bay, 107 tons of substances, and this is striden no crane trolley and can use, and its hoisting difficulty is big.In order to reach the purpose of Fast Installation, shorten installation period, the integral hoisting of tilting mechanism secondary speed-reducing machine is in place, adopts 500 tons of omnidirectional vehicle hydraulic pressure to hang and is aided with slippage beam hoisted in position.Its advantage be can be within one day hoisted in position 2 cover tilting mechanism secondary speed-reducing machines, save time, laborsaving, economize machine-team.
3, the major technique characteristics of constructional method
3.1 furnace shell, backing ring be the independent groups assembling platform separately, the assembling duration is shortened in furnace shell, the same time period assembling of backing ring, improves effect.
3.2 rationally arrange the packaging technology order according to field apparatus hoisting order, assembled lifting at once to overhead, in time be that the second cover furnace shell, backing ring are abdicated assembling position, from being assembled to the lifting reasonable link, processing step is clear, do not influence the duration, improved progress greatly, more saved cost.
3.3 two cover stoves, a cover measure.Overhead being designed to detachable (four root posts of chassis axis of pitch one side are formed by being the two sections that removably connect), after the first cover stove translation is in place, promptly detachable rear column, overhead smooth release is installed and used for the second cover stove.Cost is saved in overhead recycling, the reduction of erection time, improve effect, and reach the purpose of installing safely and fast.
4, technological principle
This constructional method is by doing preparation of construction in advance, and reasonably optimizing device assembles, handling order are simplified inflation method, reduce interim measure, to reach the saving cost, the purpose of Fast Installation.
5, technical process and key points for operation
5.1 technical process is referring to Figure 16
5.2 main constructional method and step
5.2.1 preparation of construction
(1) design and produce overhead in conjunction with four-point suspended mammoth conveter characteristics.
Four-point suspension mechanism in the four-point suspended mammoth conveter is distributed in around the body of heater.Newly-built 2 block converters, the overhead needs reuses.In conjunction with above characteristics, designed and produced overheadly, overheadly should reserve four-point suspension mechanism fitting operation space, guarantee recycling once more again.Referring to Fig. 1-5, shown in Figure 14.
(2) overhead general assembly is prepared: two mounted ladle chassis are connected into an integral body, install overhead, overhead firmly safe and reliable thereon.On overhead, 4 300t whisky jack and steel support (shaped steel and steel plate combination) are installed, and make screw block stretch out the high 50mm of height of the aspect ratio bearing support bearing (upper surface) of rear bearing block (lower surface).The ladle chassis performing check that walks up and down is added up ladle chassis traveling deviation, goes up the converter design and revises to the central point sign in length and breadth overhead.
(3), set up in advance and adjust furnace shell, backing ring assembly welding (assembling) platform in conjunction with backing ring, furnace shell packaging technology characteristics.
Height adjuster comprises with the inclined-plane and becomes the moving adjustment piece 43 of sliding contact, quiet adjustment piece 44, adjusts bolt 45 and rotates and be arranged on the quiet adjustment piece, adjusts bolt and is threaded with moving adjustment piece.When rotating the adjustment bolt, the moving piece of adjusting can move with respect to quiet adjustment piece along the inclined-plane.After finishing the welding of backing ring on backing ring assembly welding (assembling) platform, again hanging mechanism 37 is installed on the backing ring.
(4) bearing heating fuel tank and bearing hoister have been designed and produced in advance in conjunction with converter driving side, non-drive side bearing.
(5) tilting mechanism is positioned at furnace bay, 107 tons of substances, and this is striden no crane trolley and can use, and its hoisting difficulty is big.In conjunction with tilting mechanism installation site limitation, be ready to sliding platform in advance.
(6), and, be ready to the lifting suspender in advance through tight calculating in conjunction with body of heater field assembly, lifting, process for lateral translation.
5.2.2 measurement unwrapping wire
Before equipment was installed, reply converter axis and longitudinal and transverse medullary ray were measured inspection, and the measurement achievement of tackling last operation carries out the repetition measurement inspection, and its precision should not be lower than " steel-making mechanical means project installation acceptance specification " GB50403-2007.Converter vertical, horizontal medullary ray with retest-ok is as the criterion, and surveys the reference line of establishing the mechanical means installation and buries center permanent center target underground and permanent reference point, measures following installation reference line:
(1) converter vertical, horizontal medullary ray;
(2) furnace axis bearing vertical, horizontal medullary ray;
(3) ladle trolley track medullary ray (is benchmark with the converter medullary ray);
5.2.3 the bearing support bearing is installed
Referring to Figure 12,13, bearing support bearing 71,72 is installed on the basis converter 73.Detailed process is as follows.
(1) seat slurry plastic sheet is installed
Since parallels more greatly, heavier, controlled in order to make parallels place present slurry layer back slump, adopt trapezoid seat slurry box to carry out seat slurry and construct.Promptly trapezoidal box is positioned over seat slurry position, in box, adds the slurry tamping of taking a seat then, and place seat slurry plastic sheet, treat to remove trapezoidal box after the initial set.
According to pedestal base size and wall screw position, determine seat slurry plastic sheet position and specification.
(2) the bearing support bearing is installed
A, insert fundamentally in the foot bolt box T shape wall screw and half-twist;
B, diaxon bearing bearing is transported to the converter center with the ladle chassis, selects for use the lifting of mobile hydraulic mobile crane in place;
C, be benchmark, adjust and centering bearing support absolute altitude, center, standoff distance, diagonal lines, levelness etc. with gudgeon center, absolute altitude;
D, record and the position of mark bearing support on the bearing support bearing winch to bearing support 38 assembling of backing ring assembly platform and gudgeon then;
After E, the adjustment in place of non-back side hinge type bearing support bearing are intact, should take to support, topple over preventing temporarily.
5.2.4 the assembling of furnace shell, backing ring
(1) furnace shell and backing ring should be carried out group to sign before dispatching from the factory.Before dispatching from the factory, furnace shell should carry out the sign of medullary ray, particularly the medullary ray reference mark should be marked on furnace shell outside surface (put on medullary ray reference mark or center mint-mark in 0 degree, 90 degree, 180 degree, the 360 degree positions of furnace shell I section, II section, III section, IV section respectively, sign requires obviously, is difficult for wiping).
(2) furnace shell divides four sections to march into the arena, and field assembly becomes 2 sections liftings, and as shown in Figure 8, furnace shell I section is a furnace shell epimere 65, and furnace shell II section 61, III section 62, IV section 63 are welded into furnace shell hypomere 64.After 64 welding of furnace shell hypomere are finished, at eight interim positioning supports plates 54 of furnace shell hypomere periphery welding.Referring to Fig. 8,10.
(3) referring to Fig. 6,7, backing ring divides four (backing ring assemblies) to march into the arena, and field assembly becomes an integral body (as shown in the figure) lifting, and lifting front-end bearing pedestal 38 is installed in (referring to Figure 10) on the ring trunnion.
(4) furnace shell, backing ring are assembled on assembly platform separately simultaneously, shorten assembling cycle.
5.2.5 the lifting of backing ring, adjustment
(1) on the backing ring overhead before, bearing support 38 grades have been installed on the ring trunnion, four screw block 51 should be put and be fixed on four columns by design attitude.Place backing plate 52 on remaining four column.
(2) lifting: the backing ring gross weight 365t (containing bearing support) that has assembled.Utilize the 420/80t driving with extremely overhead go up (referring to the Fig. 9) of backing ring lifting.GJT72 high-performance non junction fake and the shackle of S-BX150-4 type that suspender selects for use Chinese huge Lik-Sang to produce, this kind combination is safe and reliable.
(3) adjust: backing ring hangs flat when lifting as far as possible.Backing ring is put into after overhead the going up, adjust the center and the gudgeon of backing ring according to the center target of having buried underground and absolute altitude reference point on overhead and (arrange on 8 root posts that 8 groups of taper liner plates cooperate whisky jack to be used to adjust the backing ring medullary ray with the parallelism of bearing support, gudgeon levelness and absolute altitude), after adjustment finishes, determine that the backing ring center overlaps fully with the design and installation center, the bearing support medullary ray is parallel with bearing support bearing medullary ray, bearing support bottom surface absolute altitude is than the high 50mm of bearing support upper surface of support, backing ring is aided with the taper liner plate with the steel support props up and fixed, this moment, 4 300 tons of whisky jack were in the state of not stressing.
5.2.6 the lifting of furnace shell hypomere, adjustment
(1) lifting: 144 tons of the furnace shell hypomere combination gross weights of having assembled.Utilize 420/80t driving with the lifting of furnace shell hypomere on overhead.GJT66 high-performance non junction fake and the shackle of S-BX55-2 type that suspender selects for use Chinese huge Lik-Sang to produce, this kind combination is safe and reliable.
(2) adjust: the combination of furnace shell hypomere hang on overhead before, by the relative position between backing ring in the design paper and the furnace shell 8 interim support positioning plates 54 are welded on the furnace shell hypomere 64 and (treat to cut off interim strongback after hangar system and last block seat install), the furnace shell hypomere hang on overhead after, carry out smart centering between furnace shell hypomere and the backing ring.Interim support positioning plates adopts eight point locations to support, and its weld strength is enough to accept furnace shell gravity shearing resistance.
5.2.7 lifting, the adjustment of furnace shell I section (furnace shell epimere)
(1) lifting: furnace shell I section is made up of I section body, fire door flange, stiffening ring.Backing ring and the combination of furnace shell hypomere just lift furnace shell I section after adjusting, and earlier stiffening ring and I section body are carried out assembly welding before the handling of furnace shell I section.Utilize 420/80t driving with the lifting of furnace shell I section on overhead.
(2) its centering is a benchmark with backing ring medullary ray and absolute altitude, dispatches from the factory to identify according to producer and reserves the position.Referring to Figure 12,12, fix with 64 spot welding of furnace shell hypomere after furnace shell I section 65 centerings.
5.2.8 four-point suspension mechanism and furnace shell lower set are set up weldering jointly
(1) referring to Fig. 9,10, hanging mechanism 37 hangs at backing ring and is installed to earlier on the backing ring 3 before overhead, lifts overheadly then with backing ring, takes interim measures and earlier backing ring is fixed, and carries out the whole centering of furnace shell then; After centering is finished with hanging mechanism 37 and furnace shell bottom (hypomere) 64 Combination Welding.
(2), with definite four-point suspension mechanism position, and then emit the four-point suspension position line on the body of heater, to guarantee four-point suspension institution freedom space by levelling to backing ring, furnace shell relative position.
(3) backing ring adjustment location adopts whisky jack to be aided with the backing plate levelling capturing, and furnace shell adjustment location adopts 8 interim positioning supports plates to be aided with producer's sign levelling capturing that dispatches from the factory.
5.2.9 the body of heater integral level is traversing
Be aided with 3 * 3 tackleblock with the 3t elevator furnace shell and backing ring traction are transported to the converter center, 3 tons of chain blocks respectively are set furnace shell and backing ring are positioned adjustment forward and reverse, make the bearing support standard lines overlap (bearing support bearing mark position) with bearing support bearing standard lines.
5.2.10 body of heater is in place
(1) control 4 cover whisky jack 51 rise simultaneously, the backing ring lower surface is exceeded support backing ring backing plate 52 upper surface 5mm, extract out and support backing plate 52, controlling whisky jack 51 then descends simultaneously, so whisky jack 51 and backing plate 52 alternations, body of heater and backing ring fallen fall within on the bearing support bearing 71,72, check mated condition, installation shaft bearing loam cake.
5.2.11 withdraw from overhead, carry out the traversing installation in place of 2# converter
(1) the 1# converter in place after, overhead epimere by 4 root posts 11 behind the stove is removed (referring to Figure 13), again the ladle chassis is released, then with overhead hoisted in position on 2# converter ladle trolley track, be used to install the traversing installation in place of 2# converter.
(2) 2# converter shell, backing ring are from assembling--lifting-process for lateral translation is identical with the 1# converter.
(3) after the lifting of 1# backing ring, just begin assembling 2# backing ring on platform; After the lifting of 1# furnace shell, just begin assembling 2# furnace shell on platform; When accomplishing traversing in place the finishing of 1# body of heater, 2# backing ring, furnace shell have been assembled and have been finished, and after overhead the withdrawing from, lift the state of 2# backing ring, furnace shell at once.
5.2.12 tilting mechanism secondary speed-reducing machine hoisted in position
Tilting mechanism secondary speed-reducing machine hoisted in position is one of important procedure of converter installation.Tilting mechanism is positioned at furnace bay, 107 tons of substances, and this is striden no crane trolley and can use, and its hoisting difficulty is big.In order to reach the purpose of Fast Installation, shorten installation period, the integral hoisting of tilting mechanism secondary speed-reducing machine is in place, adopts 500 tons of omnidirectional vehicle hydraulic pressure to hang and is aided with slippage beam hoisted in position.Its advantage be can be within one day hoisted in position 2 cover tilting mechanism secondary speed-reducing machines, save time, laborsaving, economize machine-team.
The installation of present embodiment is prepared by sufficient technology measure, and reasonable optimizing assembling, hoisting are accomplished 2 backing rings, the shared cover working measure of furnace shell, accomplish good linking from being assembled into lifting.The purpose that has shortened assembling cycle, saved the settling time, improved working efficiency, shifted to an earlier date the construction period, reached Fast Installation, saved construction cost.
This constructional method can be widely used in 150 tons, 250 tons and the installation work of above large suspension-type converter body, and is particularly newly-built simultaneously or transform 2 and 2 projects under construction that above mammoth conveter body equipment is installed.
Claims (6)
1. four-point suspended mammoth conveter method for rapidly mounting, it is characterized in that: it comprises the steps:
A, on the ladle chassis, be provided with one and be used to support the overhead of backing ring;
B, on the backing ring assembly platform, bearing support is installed on the ring trunnion; Four hanging mechanisms are installed on the backing ring;
C, when step b carries out, on the furnace shell jig, up and down sectional furnace shell assembly is welded at furnace shell; And weld a plurality of interim positioning supports plates at the periphery of furnace shell;
D, overheadly go up to place a plurality of screw block and backing plates that are used for the jacking backing ring, with the backing ring lifting and be placed on the screw block and backing plate on overhead; Furnace shell is lifted and is placed in the backing ring, make interim positioning supports plate be supported on the backing ring;
E, hanging mechanism is linked to each other with furnace shell;
F, the bearing support bearing is installed on the basis converter; The upper surface of bearing support bearing is lower than the lower surface of bearing support;
G, mobile ladle chassis make bearing seat in bearing support bearing top;
H, adjusting screw block and backing plate make bearing support be placed on the bearing support bearing;
I, installation tilting mechanism are removed interim positioning supports plate.
2. installation method as claimed in claim 1 is characterized in that: adopting the non junction rope during lifting is rigging.
3. installation method as claimed in claim 1, it is characterized in that: overhead eight root posts that comprise, eight root posts are that symmetry axis is symmetrical arranged with the chassis axis of pitch perpendicular to ladle chassis travel direction, wherein form by being the two sections that removably connect at four root posts of chassis axis of pitch one side; The junction of two sections is lower than the bottom of furnace shell.
4. installation method as claimed in claim 1 is characterized in that: the backing ring assembly platform comprises a plurality of slab groups and is placed on height adjuster on the slab group; The slab group is stacked by dummy sketch and forms; Backing ring bottom and ring trunnion bottom are placed on the height adjuster.
5. installation method as claimed in claim 4 is characterized in that: height adjuster comprises with the inclined-plane and becomes the moving adjustment piece of sliding contact, quiet adjustment piece, adjusts bolt and rotates and be arranged on the quiet adjustment piece, adjusts bolt and is threaded with moving adjustment piece; When rotating the adjustment bolt, the moving piece of adjusting can move with respect to quiet adjustment piece along the inclined-plane.
6. installation method as claimed in claim 5 is characterized in that: described screw block is four, and described interim positioning supports plate is eight, and the slab group is ten.
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| CN 201110067838 CN102094106A (en) | 2011-03-21 | 2011-03-21 | Quick installation method for large four-point suspended type converter |
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| CN112756965A (en) * | 2020-12-30 | 2021-05-07 | 上海二十冶建设有限公司 | Split mounting method for tilting speed reducer of converter |
| CN113234882A (en) * | 2021-05-10 | 2021-08-10 | 中国华冶科工集团有限公司 | Converter equipment installation method |
| CN113333991A (en) * | 2021-06-16 | 2021-09-03 | 中国二十二冶集团有限公司 | Pairing installation method of converter shells |
| CN114131234A (en) * | 2021-11-26 | 2022-03-04 | 中冶京诚工程技术有限公司 | Installation method of horizontal hanging device |
| CN115747413A (en) * | 2022-11-23 | 2023-03-07 | 中国三冶集团有限公司 | Rotary assembly type converter environment-friendly transformation device and use method |
| CN115977363A (en) * | 2022-12-15 | 2023-04-18 | 中国十九冶集团有限公司 | Operation rack for repairing water-cooled furnace cover of refining furnace |
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| CN102242240A (en) * | 2011-07-18 | 2011-11-16 | 永兴特种不锈钢股份有限公司 | AOD furnace |
| CN103849709A (en) * | 2012-12-03 | 2014-06-11 | 攀钢集团工程技术有限公司 | Installation method for tilting system of steelmaking converter |
| CN103849709B (en) * | 2012-12-03 | 2015-09-16 | 攀钢集团工程技术有限公司 | The installation method of the tilting system of steel-making converter |
| CN105154616A (en) * | 2015-09-29 | 2015-12-16 | 中国一冶集团有限公司 | Method for mounting suspended ball joint converter |
| CN105710550A (en) * | 2016-03-31 | 2016-06-29 | 中冶南方工程技术有限公司 | Splicing and welding method of large converter five-connection-rod hanging device |
| CN105755205A (en) * | 2016-04-14 | 2016-07-13 | 中国十七冶集团有限公司 | Combination-method mounting method of ultra-large converter |
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| CN110878384A (en) * | 2019-10-31 | 2020-03-13 | 张家港宏昌钢板有限公司 | Converter integral replacing device and replacing method |
| CN111575438A (en) * | 2020-03-31 | 2020-08-25 | 上海宝冶集团有限公司 | Mounting method of full-suspension four-point meshing type super-large converter |
| CN112708722A (en) * | 2020-11-30 | 2021-04-27 | 中国十九冶集团有限公司 | Overhead and converter installation method |
| CN112609037A (en) * | 2020-12-07 | 2021-04-06 | 中国十九冶集团有限公司 | Converter translation device and converter installation method |
| CN112756965A (en) * | 2020-12-30 | 2021-05-07 | 上海二十冶建设有限公司 | Split mounting method for tilting speed reducer of converter |
| CN113234882A (en) * | 2021-05-10 | 2021-08-10 | 中国华冶科工集团有限公司 | Converter equipment installation method |
| CN113333991A (en) * | 2021-06-16 | 2021-09-03 | 中国二十二冶集团有限公司 | Pairing installation method of converter shells |
| CN113333991B (en) * | 2021-06-16 | 2024-01-23 | 中国二十二冶集团有限公司 | Assembling and installing method for converter shell |
| CN114131234A (en) * | 2021-11-26 | 2022-03-04 | 中冶京诚工程技术有限公司 | Installation method of horizontal hanging device |
| CN115747413A (en) * | 2022-11-23 | 2023-03-07 | 中国三冶集团有限公司 | Rotary assembly type converter environment-friendly transformation device and use method |
| CN115977363A (en) * | 2022-12-15 | 2023-04-18 | 中国十九冶集团有限公司 | Operation rack for repairing water-cooled furnace cover of refining furnace |
| CN115977363B (en) * | 2022-12-15 | 2024-04-02 | 中国十九冶集团有限公司 | Operating bench for repairing water-cooled furnace cover of refining furnace |
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Application publication date: 20110615 |