CN104762438A - A converter device replacing and installing method - Google Patents
A converter device replacing and installing method Download PDFInfo
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- CN104762438A CN104762438A CN201510128003.8A CN201510128003A CN104762438A CN 104762438 A CN104762438 A CN 104762438A CN 201510128003 A CN201510128003 A CN 201510128003A CN 104762438 A CN104762438 A CN 104762438A
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 238000010276 construction Methods 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 59
- 241001125879 Gobio Species 0.000 claims description 29
- 239000000725 suspension Substances 0.000 claims description 17
- 230000002787 reinforcement Effects 0.000 claims description 9
- 210000005069 ears Anatomy 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
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- 239000003638 chemical reducing agent Substances 0.000 abstract description 4
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- 238000005516 engineering process Methods 0.000 description 1
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Abstract
A split and inserting type converter device replacing and installing method is disclosed. The method mainly comprises following steps: dismantling a furnace body coaming; rotating the converter; cutting a converter shell into two parts in the converter, splitting and dismantling; splitting and dismantling a fully-suspended furnace tilting reducer; dismantling a bearing pedestal upper cover; dismantling a bracket ring; dismantling a lower bearing pedestal; installing, regulating and centering a lower bearing pedestal, conveying a lower cover of a furnace tilting reducer to a furnace tilting chamber in an upturned manner; assembling bracket ring trunnions, hoisting and installing; assembling the furnace body of the converter, hoisting, installing and regulating; installing spherical supports; and installing a skirt plate, then converter device replacing is completed. According to the method, a before-furnace steel structure platform having been completed is not dismantled, present bridge cranes and winches are utilized so that the investment cost of hoisting tools is not added, using of a large amount of steel structure materials is reduced, the method has no influence on production of other converters, furnace body assembling slag traps and other accessories are not dismantled, furnace body assembling accessories are installed in advance, a big gear wheel is installed in advance, and the method is short in actual construction time, high in operationality and suitable for converter device replacing.
Description
Technical field
The present invention relates to a kind of converter installation replacing options, particularly relate to a kind of being applicable at incline with converter body assembling, ring trunnion assembling, the stove dismounting of replacing speed reducer, installation method.
Background technology
Mainly converter body assembling is carried out in employing " jacking sliding method ", ring trunnion assembles, stove inclines, and step-down gear assembles replacing for converter current equipment replacement, installation, its principal feature utilizes metallurgical vehicle metallurgy vehicle fabrication and installation steel construction lift bench under stove, backing ring is placed on platform, then with driving, body of heater assembling is lifted on backing ring, rise and be raised to ball socketed bearing seat higher than steel structure base, then with ground vehicle by converter slippage to installation position, fall after rise installation.Main drawback be need remove the stokehold platform that completed and steel construction facility, rise heavy industry facility consumption many, need in advance fabrication and installation steel construction lifting platform, long in time limit, construction investment is large, maintainer is many.
Summary of the invention
The object of the invention is to; a kind of " split, insert " converter installation replacing options is provided; the method effectively can reduce participation maintainer; do not need to remove a large amount of existing workshop steel structure platform column; existing driving is effectively utilized to wait heavy industry facility; improve equipment pre-installation proportion under line, reduce converter stop time.
For achieving the above object, present invention employs following technical scheme:
Converter installation of the present invention changes installation method, comprises the following steps:
(1) elevator and suspension centre are arranged: windlass is arranged in medullary ray both sides, platform converter opposite, stokehold, and arranges suspension centre;
(2) remove coaming plate successively, old body of heater assembles, old stove inclines step-down gear, old ring trunnion assembles, old stove inclines lower cover, old torsion bar and old bearing support;
(3) new bearing support is installed: cleaning bearing block base, lifts new lower bearing seat and put in place, carry out lower bearing seat centering; The step-down gear lower cover that simultaneously new torsion bar and new stove inclined is put into stove and to be inclined room, the step-down gear lower cover and stationary furnace inclines;
(4) new ring trunnion erection:
(4-1) new backing ring online under assemble ball socketed bearing and master wheel; Inside the ball socketed bearing seat of new backing ring both sides, be tied wireline, backing ring hoists by level, and handling is on ball socketed bearing and bearing support longitudinal cenlerline;
(4-2) coordinates new backing ring to rise with driving with elevator and be raised to lower surface higher than stokehold platform, slow decline elevator and driving, new ring trunnion is assembled and puts in bearing support;
(4-3) new backing ring is fixed by H profile steel;
(4-4) bearing support top closing lid and fastening;
(5) new stove incline step-down gear upper cover install:
(5-1) coordinate the step-down gear upper cover that to be inclined by new stove to lift with elevator with driving to put in place, closing lid holding bolt;
(5-2) torsion bar centering, connects connecting rod;
(5-3) the stove motor that inclines connects electricity, and motor debugging turns to one by one;
(6) new body of heater erection:
(6-1) in advance skimming plate, fire door water tank and spherical support are installed on new furnace shell, below tap hole, both sides gusset and spherical support both sides, tap hole opposite gusset cut out totally four erection opening respectively, be tied suspension centre respectively with the first row car owner hook and first auxiliary hook of driving a vehicle, and the first row car owner hook is tied the tap hole side at new body of heater; Coordinate body of heater of slinging to assemble with the first row car owner hook and first auxiliary hook of driving a vehicle, hoist in process, utilize body of heater to conduct oneself with dignity and body of heater assembling tilted to 10 degree to 20 degree, handling is extremely on new backing ring medullary ray;
(6-2) new backing ring is shaken to position within the scope of 50 to 70 degree to direction, stokehold;
(6-3) coordinate new body of heater to assemble tilt to new backing ring angle consistent with the first row car owner hook and first auxiliary hook of driving a vehicle, move the first row car owner hook and first to new backing ring side and to drive a vehicle auxiliary hook, make furnace bottom upper surface near new backing ring;
(6-4) new backing ring to 50 is shaken to 55 degree, the new body of heater that falls assembles, it is made to come on new backing ring, the first row that hoists car owner's hook and first is driven a vehicle auxiliary hook, adjust new body of heater assembling angle of inclination consistent with new backing ring, landing the first row car owner's hook and first is driven a vehicle auxiliary hook, new body of heater is assembled hypomere and inserts in new backing ring;
(6-5) shake new backing ring to 40 to 50 degree, continue landing furnace shell, until spherical support is fallen in new backing ring otic placode, push up on new backing ring;
(6-6) remove the first row car owner hook and first to drive a vehicle the wireline of auxiliary hook, shake new backing ring to level;
(6-7) under stove, adjust furnace shell height, finely tune in spherical support both sides, align spherical support open holes, bearing pin is installed;
(6-8) fastening spherical support big nut;
(6-9) upper scotch is close to bracket, scotch on reinforcement of weld;
(6-10) grate body to 180 degree, takes platform in stove, installs lower bracket, after holding bolt, is close to lower scotch, scotch under reinforcement of weld;
(7) coaming plate is installed: installed by the coaming plate removed, and reinforcement of weld.
Installation method is changed according to converter installation of the present invention, step (1) shares three windlasss, wherein, two is 10t elevator, one is 5t elevator, is arranged in factory building column place, medullary ray both sides, platform converter opposite, stokehold, and first leading block utilizes converter two heel post to be fixed, second leading block is arranged on converter second layer platform, and three fixed pulley groups are arranged on the 4th layer of steel platform structure beam;
Described suspension centre is set to: wherein two suspension centres arrange the 4th layer of platform crossbeam directly over corresponding converter back side gudgeon and non-drive axle of picking up the ears respectively, and the 3rd suspension centre is arranged on stove and inclines the 4th layer of platform crossbeam directly over step-down gear.
Change installation method according to converter installation of the present invention, described step (2) specifically comprises the following steps:
(2-1) coaming plate is removed: hung by coaming plate, gudgeon is divided into block to side, stokehold coaming plate, and block-by-block is removed;
(2-2) body of heater assembling is removed:
(2-2-1) grate fire door is to tapping steel construction crossbeam side, side (namely putting steel side), personnel enter in body of heater, at furnace shell stage casing backing ring lower surface position, body of heater is divided into two portions to cut off, and cuts out erection opening near the corresponding gudgeon place, both sides of furnace bottom;
(2-2-2) continue fire door downward, personnel stand on backing ring and are cut off by remainder body of heater, and above the gudgeon of both sides, the connection of place's reservation primary reformer body is not cut off;
(2-2-3) be tied wireline cutting erection opening place in advance, with driving, body of heater assembled epimere and hang, grate personnel stand in both sides and connect with primary reformer body step (2-2-2) retained and cut off;
(2-2-4) body of heater under cutting is hung away;
(2-2-5) grate to fire door upwards, tap hole two side position with just erection opening is cut off to gusset place, tap hole spherical support both sides, be tied wireline, cut off tap hole both sides spherical support slip-knot stud, body of heater assembling hung, grate to 55 is spent to 65, cuts off tap hole opposite spherical support slip-knot stud, the assembling of residue body of heater, within the scope of 50 degree, is extracted by grate to 40 from backing ring;
(2-2-6) backing ring is shaken flat;
(2-3) stove incline step-down gear split remove:
(2-3-1) incline on the accident base of step-down gear bottom with steel plate plug at stove, remove torsion bar and stove and to incline step-down gear union lever;
(2-3-2) be tied with stove top elevator stove the inclined upper casing that inclines, do not remove a step-down gear and driving mechanism, directly cut off stove to incline step-down gear upper cover and lower cover joint bolt, outside side steel construction crossbeam of slagging tap, (namely stove inclines step-down gear near platform side, stokehold) is tied with driving simultaneously, and the step-down gear upper cover that inclined by stove forwards stokehold platform to above gudgeon;
(2-4) ring trunnion assembling is removed: inside bearing support, converter both sides gudgeon is tied wireline; To coordinate with elevator ring trunnion assemble with the driving of two, stokehold and forward stokehold platform to from converter bay, dismounting elevator, driving a vehicle ring trunnion to assemble with two transfers;
(2-5) incline lower cover and torsion bar of stove is removed and bearing support is removed: hang out with to be inclined by stove lower cover and torsion bar of driving and elevator cooperation, transfer; Two side shaft holders are removed.
Change installation method according to converter installation of the present invention, as preferably, the half of furnace shell stage casing backing ring lower surface position body of heater is cut off by step (2-2-1).
Change installation method according to converter installation of the present invention, as preferably, the primary reformer body of step (2-2-2) described reservation connects in long 200mm to 500mm scope.
Change installation method according to converter installation of the present invention, as preferably, step (2-3-2) to coordinate first to hoist, land with elevator mode with the driving a vehicle step-down gear upper cover that inclined by stove forwards stokehold platform to above gudgeon.
Change installation method according to converter installation of the present invention, as preferably, step (2-4) does not remove master wheel; Inside bearing support, converter both sides gudgeon is tied four groups of wireline, two groups, axle of often picking up the ears, wherein one group has been tied wireline with two elevators, and the driving of another group stokehold is tied; With the driving of two, stokehold to coordinate with elevator first to hoist, ring trunnion to assemble and forwards stokehold platform to from converter bay, dismounting elevator by the mode of landing again; One in described two drivings for walking.
Installation method is changed according to converter installation of the present invention, as preferably, step (4-1) is respectively tied two groups of wireline inside the ball socketed bearing seat of new backing ring both sides, with two driving each lifting both sides gudgeon one group of wireline, backing ring is worked that be raised to can by the height of stokehold platform by level; Step (4-2) is tied with elevator above the gudgeon of both sides and remains two groups of wireline, coordinates backing ring to rise to be raised to lower surface higher than stokehold platform with elevator with driving.
Change installation method according to converter installation of the present invention, as preferably, above step (6-1) spherical support, three pieces of skimming plates are not installed on new furnace shell; After the described fastening spherical support big nut of step (6-8), installation steps (6-1) do not have install spherical support above three pieces of skimming plates.
Through above-mentioned steps, just can complete converter body assembling, ring trunnion assembles, stove inclines replacing speed reducer work.
The present invention, compared with the converter installation installation method adopted at present, mainly has following main beneficial effect:
1, maintenance duration is short.Due to stokehold steel structure platform need not be removed, need not prefabricated jacking steel structure, a large amount of spare parts online lower shut down before assembled, practice of construction is only left mainly to lift work, therefore effectively can save the duration.
2, participant is few.Due to decrease steel structure platform remove with recover, the work such as prefabricated, the spare part assembling of steel construction, so the personnel participating in maintenance reduce.
3, reduce investment outlay.Present method makes full use of driving in existing factory building, decreases structure steel fabrication, because this reducing the fund input of work facility and material.
4, present method be suitable for in the dismounting with converter installation, installation, especially can carry out operation under the condition not affecting other converter producing.
Accompanying drawing explanation
Fig. 1 is that converter body assembling hypomere lifting schematic diagram is removed in split of the present invention.
Fig. 2 is that grate of the present invention removes converter body assembling epimere lifting schematic diagram.
Fig. 3 is ring trunnion of the present invention assembling two driving lifting schematic diagram.
Fig. 4 is that the overall backing ring that inserts of converter body of the present invention assembling lifts schematic diagram.
Reference numeral
1, tapping side steel construction crossbeam; 2, body of heater assembling; 3, ring trunnion assembling;
4, body of heater assembling epimere; 5, the first row car owner hook; 5-1 first drives a vehicle auxiliary hook;
6, to slag tap side steel construction crossbeam; 7, body of heater assembling hypomere;
8, non-drive axle bearing of picking up the ears; 9, non-drive side elevator is tied a little;
10, the second driving main hook; 11, back side elevator is tied a little
12, back side ball socketed bearing; 13, master wheel; 14, skimming plate;
15, fire door water tank; 16, spherical support
Embodiment
The invention provides one " split, insert " converter installation replacing options, the method step comprises that elevator and suspension centre are arranged, coaming plate is removed, body of heater assembling is removed, stove inclines, and step-down gear is removed, ring trunnion assembling is removed, stove inclines dismountings of step-down gear lower cover, bearing support installation, ring trunnion erection, stove incline the installation of step-down gear upper cover, the installation of body of heater erection, coaming plate.Specifically perform according to the following step:
Converter installation of the present invention changes installation method, comprises the following steps:
Step (1). elevator and suspension centre are arranged:
(1-1) the present invention shares three windlasss, two 10t elevators, 5t elevators, mainly be arranged in factory building column place, medullary ray both sides, platform converter opposite, stokehold, first leading block utilizes converter two heel post to be fixed, second leading block is arranged on converter second layer platform, and three fixed pulley groups are arranged on the 4th layer of steel platform structure beam;
(1-2) wherein two suspension centres arrange the 4th layer of platform crossbeam directly over corresponding converter back side gudgeon, non-drive axle of picking up the ears respectively, and suspension centre is arranged on stove and inclines the 4th layer of platform crossbeam directly over step-down gear;
Step (2). remove coaming plate successively, old body of heater assembles, old stove inclines step-down gear, old ring trunnion assembles, old stove inclines lower cover, old torsion bar and old bearing support, specific as follows:
(2-1) coaming plate is removed:
Coaming plate chain block hangs, and is divided into block, and block-by-block is removed, and only need remove gudgeon to side, stokehold;
(2-2) body of heater assembling 2 is removed:
(2-2-1) grate fire door is to tapping steel construction crossbeam 1 side, side, and personnel enter in body of heater, and in furnace shell stage casing, body of heater half is cut off by backing ring lower surface position gas cutting, and is cutting out erection opening near the corresponding gudgeon place, both sides of furnace bottom;
(2-2-2) continue fire door downward, personnel stand on backing ring and are cut off by remainder body of heater, and above the gudgeon of both sides, place stays 200mm to 500mm not cut off;
(2-2-3) be tied wireline cutting erection opening place in advance, with driving, body of heater assembled epimere 4 and hang, grate personnel stand in both sides and to be connected by reserved body of heater with 1.5 meters of gas cuttings and cut off;
(2-2-4) with driving, body of heater is assembled hypomere to hang away;
(2-2-5) grate to fire door upwards, tap hole two side position with just erection opening is cut off to gusset place, tap hole spherical support both sides, be tied wireline, cut off tap hole both sides spherical support slip-knot stud, with driving, body of heater is assembled epimere section to hang, grate to 55, within the scope of 65 degree, cuts off tap hole opposite spherical support slip-knot stud, body of heater, within the scope of 50 degree, is assembled epimere with driving and extracts from backing ring by grate to 40;
(2-2-6) backing ring is shaken flat;
(2-3) stove incline step-down gear split remove:
(2-3-1) incline on the accident base of step-down gear bottom with steel plate plug at stove, remove torsion bar and stove and to incline step-down gear union lever;
(2-3-2) be tied with stove top elevator stove the inclined upper casing that inclines, do not remove a step-down gear and driving mechanism, directly cut off stove to incline step-down gear upper cover and lower cover joint bolt, be tied with driving outside side steel construction crossbeam 6 of slagging tap simultaneously, to coordinate with elevator with driving first hoist, the mode of landing the again step-down gear upper cover that inclined by stove forwards stokehold platform to above gudgeon, walk with traveling crane;
(2-4) ring trunnion assembling is removed:
Do not remove master wheel 13; Inside bearing support, converter both sides gudgeon is tied four groups of wireline, two groups, axle of often picking up the ears, one group has been tied wireline with two elevators, and the driving of another group stokehold is tied.To coordinate with elevator with the driving of two, stokehold first hoist, the mode of landing again forwards ring trunnion assembling 3 to stokehold platform from converter bay, removes elevator, driving a vehicle ring trunnion to assemble with two transfers; Identical for ensureing two driving speeds of travel, only use a walking of driving a vehicle time mobile;
(2-5) stove inclines, and lower cover and torsion bar are removed, bearing support is removed:
With driving and elevator coordinate the lower cover that to be inclined by stove, torsion bar hangs out from steel construction crossbeam side, side of slagging tap, falls away; Place 25t mobile crane one at stokehold platform, two side shaft holders are removed;
Step (3). bearing support is installed:
Cleaning bearing block base, puts in place with mobile crane lifting lower bearing seat, carries out lower bearing seat centering; The step-down gear lower cover (assembling a step-down gear and driving) that simultaneously torsion bar, stove inclined to incline room by pouring stove into, and lower cover finds out center to bearing support width between centers, and fixing;
Step (4). new ring trunnion erection:
(4-1) new backing ring online under assemble ball socketed bearing and master wheel; Two groups of wireline are respectively tied inside the ball socketed bearing seat of new backing ring both sides, amount to four groups of wireline, with two driving each lifting both sides gudgeon one group of wireline, backing ring is worked that be raised to can by the height of stokehold platform by level, and handling is on ball socketed bearing and bearing support longitudinal cenlerline;
Be specially, under new backing ring is online, assemble ball socketed bearing and master wheel 13; Inside the ball socketed bearing seat of the non-drive axle bearing 8 of picking up the ears in new backing ring both sides with inside the ball socketed bearing seat of back side ball socketed bearing 12, be respectively tied two groups of wireline respectively, amount to four groups of wireline (namely non-drive side elevator be tied a little 9 and back side elevator be tied a little 11 places and be tied wireline); Wherein, two elevators in one group, every side have been tied wireline, and the driving of another group stokehold is tied wireline; Be specially in non-drive side, be tied wireline with the first row car owner hook 5; Wireline is tied with the second driving main hook 10 in non-drive side; With two driving each lifting both sides gudgeon one group of wireline, backing ring is worked that be raised to can by the height of stokehold platform by level, and handling is on ball socketed bearing and bearing support longitudinal cenlerline;
(4-2) be tied with elevator above the gudgeon of both sides and remain two groups of wireline, to coordinate with driving backing ring to rise with elevator and be raised to lower surface higher than stokehold platform, slow decline elevator and driving, ring trunnion is assembled and puts in bearing support;
(4-3) backing ring is fixed by H profile steel;
(4-4) bearing support top closing lid and fastening;
Step (5). stove incline step-down gear upper cover install
(5-1) coordinate the step-down gear upper cover (assembling a step-down gear and driving) that to be inclined by stove to lift with elevator with driving to put in place, closing lid holding bolt;
(5-2) torsion bar centering, connects connecting rod;
(5-3) the stove motor that inclines connects electricity, and motor debugging turns to one by one;
Step (6). body of heater erection:
(6-1) in advance by skimming plate 14 (except above spherical support three pieces), fire door water tank 15, spherical support 16 be installed on furnace shell, below tap hole, both sides gusset and spherical support both sides, tap hole opposite gusset cut out four erection opening, be tied suspension centre respectively with the first row car owner hook 5, first driving auxiliary hook 5-1, the first row car owner hook is tied in tap hole side.Coordinate with the first row car owner hook, the first driving auxiliary hook body of heater assembling of slinging, hoist in process, about utilizing body of heater deadweight that body of heater assembling is tilted to 10 to 20 degree scopes, the body of heater that hoists assembling lower surface lower-most point is higher than stokehold platform, and handling is on backing ring medullary ray.
(6-2) backing ring is shaken within the scope of 50 to 70 degree to direction, stokehold;
(6-3) coordinate body of heater to assemble tilt to backing ring angle consistent with the first row car owner hook and first auxiliary hook of driving a vehicle, move the first row car owner hook and first to backing ring side and to drive a vehicle auxiliary hook, treat that furnace bottom upper surface stops near backing ring;
(6-4) backing ring to 50 is shaken within the scope of 55 degree, whereabouts body of heater assembling, come on backing ring, the first row that hoists car owner hook and first drive a vehicle auxiliary hook adjust body of heater assemble angle of inclination and backing ring consistent, landing the first row car owner's hook and first is driven a vehicle auxiliary hook, body of heater is assembled hypomere 7 to insert in backing ring, until furnace bottom exposes backing ring lower surface;
(6-5) shake backing ring to 40 to 50 degree of scopes, continue landing furnace shell, until spherical support is fallen in backing ring otic placode, push up on backing ring;
(6-6) remove the first row garage car owner hook and first to drive a vehicle auxiliary hook wireline, shake backing ring is to level 0 degree;
(6-7) under stove, utilize vehicle under furnace screw block to adjust furnace shell height, in spherical support both sides, screw block is finely tuned, and aligns spherical support open holes, installs bearing pin;
(6-8) fastening spherical support big nut, mounting spherical supports the 3 pieces of skimming plates in top;
(6-9) upper scotch is close to bracket, with carbon-dioxide arc welding reinforcement of weld scotch;
(6-10) grate to 180 is spent, in stove, take platform, installs lower bracket, after holding bolt, is close to lower scotch, with carbon-dioxide arc welding reinforcement of weld scotch;
Step (7). coaming plate is installed:
To coordinate with chain block with 25t mobile crane and the coaming plate removed is installed, and reinforcement of weld.
Certainly; the present invention can also have various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can openly make various corresponding change and modification according to of the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.
Claims (9)
1. converter installation changes an installation method, comprises the following steps:
(1) elevator and suspension centre are arranged: windlass is arranged in medullary ray both sides, platform converter opposite, stokehold, and arranges suspension centre;
(2) remove coaming plate successively, old body of heater assembles, old stove inclines step-down gear, old ring trunnion assembles, old stove inclines lower cover, old torsion bar and old bearing support;
(3) new bearing support is installed: cleaning bearing block base, lifts new lower bearing seat and put in place, carry out lower bearing seat centering; The step-down gear lower cover that simultaneously new torsion bar and new stove inclined is put into stove and to be inclined room, the step-down gear lower cover and stationary furnace inclines;
(4) new ring trunnion erection:
(4-1) new backing ring online under assemble ball socketed bearing and master wheel; Inside the ball socketed bearing seat of new backing ring both sides, be tied wireline, backing ring hoists by level, and handling is on ball socketed bearing and bearing support longitudinal cenlerline;
(4-2) coordinates new backing ring to rise with driving with elevator and be raised to lower surface higher than stokehold platform, slow decline elevator and driving, new ring trunnion is assembled and puts in bearing support;
(4-3) new backing ring is fixed by H profile steel;
(4-4) bearing support top closing lid and fastening;
(5) new stove incline step-down gear upper cover install:
(5-1) coordinate the step-down gear upper cover that to be inclined by new stove to lift with elevator with driving to put in place, closing lid holding bolt;
(5-2) torsion bar centering, connects connecting rod;
(5-3) the stove motor that inclines connects electricity, and motor debugging turns to one by one;
(6) new body of heater erection:
(6-1) in advance skimming plate, fire door water tank and spherical support are installed on new furnace shell, below tap hole, both sides gusset and spherical support both sides, tap hole opposite gusset cut out totally four erection opening respectively, be tied suspension centre respectively with the first row car owner hook and first auxiliary hook of driving a vehicle, and the first row car owner hook is tied the tap hole side at new body of heater; Coordinate body of heater of slinging to assemble with the first row car owner hook and first auxiliary hook of driving a vehicle, hoist in process, utilize body of heater to conduct oneself with dignity and body of heater assembling tilted to 10 degree within the scope of 20 degree, in handling to new backing ring medullary ray;
(6-2) new backing ring is shaken to position within the scope of 50 to 70 degree to direction, stokehold;
(6-3) coordinate new body of heater to assemble tilt to new backing ring angle consistent with the first row car owner hook and first auxiliary hook of driving a vehicle, move the first row car owner hook and first to new backing ring side and to drive a vehicle auxiliary hook, make furnace bottom upper surface near new backing ring;
(6-4) new backing ring to 50 is shaken to 55 degree, the new body of heater that falls assembles, it is made to come on new backing ring, the first row that hoists car owner's hook and first is driven a vehicle auxiliary hook, adjust new body of heater assembling angle of inclination consistent with new backing ring, landing the first row car owner's hook and first is driven a vehicle auxiliary hook, new body of heater is assembled hypomere and inserts in new backing ring;
(6-5) shake new backing ring to 40 to 50 degree, continue landing furnace shell, until spherical support is fallen in new backing ring otic placode, push up on new backing ring;
(6-6) remove the first row car owner hook and first to drive a vehicle the wireline of auxiliary hook, shake new backing ring to level;
(6-7) under stove, adjust furnace shell height, finely tune in spherical support both sides, align spherical support open holes, bearing pin is installed;
(6-8) fastening spherical support big nut;
(6-9) upper scotch is close to bracket, scotch on reinforcement of weld;
(6-10) grate body to 180 degree, takes platform in stove, installs lower bracket, after holding bolt, is close to lower scotch, scotch under reinforcement of weld;
(7) coaming plate is installed: installed by the coaming plate removed, and reinforcement of weld.
2. converter installation according to claim 1 changes installation method, it is characterized in that, step (1) shares three windlasss, wherein, two is 10t elevator, and one is 5t elevator, be arranged in factory building column place, medullary ray both sides, platform converter opposite, stokehold, first leading block utilizes converter two heel post to be fixed, and second leading block is arranged on converter second layer platform, and three fixed pulley groups are arranged on the 4th layer of steel platform structure beam;
Described suspension centre is set to: wherein two suspension centres arrange the 4th layer of platform crossbeam directly over corresponding converter back side gudgeon and non-drive axle tapered section of picking up the ears respectively, and the 3rd suspension centre is arranged on stove and inclines the 4th layer of platform crossbeam directly over step-down gear.
3. converter installation according to claim 1 changes installation method, and it is characterized in that, described step (2) comprises the following steps:
(2-1) coaming plate is removed: hung by coaming plate, gudgeon is divided into block to side, stokehold coaming plate, and block-by-block is removed;
(2-2) body of heater assembling is removed:
(2-2-1) grate fire door is to tapping steel construction crossbeam side, side, and personnel enter in body of heater, at furnace shell stage casing backing ring lower surface position, body of heater are divided into two portions and cut off, and is cutting out erection opening near the corresponding gudgeon place, both sides of furnace bottom;
(2-2-2) continue fire door downward, personnel stand on backing ring and are cut off by remainder body of heater, and above the gudgeon of both sides, the connection of place's reservation primary reformer body is not cut off;
(2-2-3) be tied wireline cutting erection opening place in advance, with driving, body of heater assembled epimere and hang, grate personnel stand in both sides and connect with primary reformer body step (2-2-2) retained and cut off;
(2-2-4) body of heater under cutting is hung away;
(2-2-5) grate to fire door upwards, tap hole two side position with just erection opening is cut off to gusset place, tap hole spherical support both sides, be tied wireline, cut off tap hole both sides spherical support slip-knot stud, body of heater assembling hung, grate to 55 is spent within the scope of 65 degree, cuts off tap hole opposite spherical support slip-knot stud, the assembling of residue body of heater, within the scope of 50 degree, is extracted by grate to 40 from backing ring;
(2-2-6) backing ring is shaken flat;
(2-3) stove incline step-down gear split remove:
(2-3-1) incline on the accident base of step-down gear bottom with steel plate plug at stove, remove torsion bar and stove and to incline step-down gear union lever;
(2-3-2) be tied with stove top elevator stove the inclined upper casing that inclines, do not remove a step-down gear and driving mechanism, directly cut off stove to incline step-down gear upper cover and lower cover joint bolt, be tied with driving outside side steel construction crossbeam of slagging tap, the step-down gear upper cover that inclined by stove forwards stokehold platform to above gudgeon simultaneously;
(2-4) ring trunnion assembling is removed: inside bearing support, converter both sides gudgeon is tied wireline; To coordinate with elevator ring trunnion assemble with the driving of two, stokehold and forward stokehold platform to from converter bay, dismounting elevator, driving a vehicle ring trunnion to assemble with two transfers;
(2-5) incline lower cover and torsion bar of stove is removed and bearing support is removed: hang out with to be inclined by stove lower cover and torsion bar of driving and elevator cooperation, transfer; Two side shaft holders are removed.
4. converter installation according to claim 3 changes installation method, and it is characterized in that, the half of furnace shell stage casing backing ring lower surface position body of heater is cut off by step (2-2-1).
5. converter installation according to claim 3 changes installation method, it is characterized in that, the primary reformer body of step (2-2-2) described reservation connects for long 200mm to 500mm.
6. converter installation according to claim 3 changes installation method, it is characterized in that, step (2-3-2) to coordinate first to hoist, land with elevator mode with the driving a vehicle step-down gear upper cover that inclined by stove forwards stokehold platform to above gudgeon.
7. converter installation according to claim 3 changes installation method, and it is characterized in that, step (2-4) does not remove master wheel; Inside bearing support, converter both sides gudgeon is tied four groups of wireline, two groups, axle of often picking up the ears, wherein one group has been tied wireline with two elevators, and the driving of another group stokehold is tied; With the driving of two, stokehold to coordinate with elevator first to hoist, ring trunnion to assemble and forwards stokehold platform to from converter bay, dismounting elevator by the mode of landing again; One in described two drivings for walking.
8. converter installation according to claim 1 changes installation method, it is characterized in that, step (4-1) is respectively tied two groups of wireline inside the ball socketed bearing seat of new backing ring both sides, with two driving each lifting both sides gudgeon one group of wireline, backing ring is worked that be raised to can by the height of stokehold platform by level; Step (4-2) is tied with elevator above the gudgeon of both sides and remains two groups of wireline, coordinates backing ring to rise to be raised to lower surface higher than stokehold platform with elevator with driving.
9. converter installation according to claim 1 changes installation method, and it is characterized in that, above step (6-1) spherical support, three pieces of skimming plates are not installed on new furnace shell; After the described fastening spherical support big nut of step (6-8), installation steps (6-1) do not have install spherical support above three pieces of skimming plates.
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| CN201510128003.8A CN104762438B (en) | 2015-03-23 | 2015-03-23 | A kind of converter installation changes installation method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463151A (en) * | 2015-12-30 | 2016-04-06 | 莱芜钢铁集团有限公司 | Overhauling method for converter equipment |
| CN106011370A (en) * | 2016-08-09 | 2016-10-12 | 莱芜钢铁集团有限公司 | Converter furnace mouth flange on-line replacement method |
| CN106834589A (en) * | 2015-12-04 | 2017-06-13 | 中冶宝钢技术服务有限公司 | Converter Maintenance method |
| CN107299186A (en) * | 2017-06-30 | 2017-10-27 | 攀钢集团工程技术有限公司 | Change the device and method of converter mouth |
| CN108676960A (en) * | 2018-06-04 | 2018-10-19 | 中国十七冶集团有限公司 | A kind of ultra-large type steelmaking converter modularization method installation method |
| CN109940358A (en) * | 2019-03-26 | 2019-06-28 | 武钢集团襄阳重型装备材料有限公司 | A kind of detachable trunnion assembly method of large-scale metallurgical slag ladle |
| 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 |
| CN111961800A (en) * | 2020-06-30 | 2020-11-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for replacing fixed steelmaking converter shell |
| CN111975310A (en) * | 2020-07-02 | 2020-11-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for replacing trunnion bearing at transmission side under abnormal condition of steel converter |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106834589A (en) * | 2015-12-04 | 2017-06-13 | 中冶宝钢技术服务有限公司 | Converter Maintenance method |
| CN106834589B (en) * | 2015-12-04 | 2019-01-22 | 中冶宝钢技术服务有限公司 | Converter Maintenance method |
| CN105463151A (en) * | 2015-12-30 | 2016-04-06 | 莱芜钢铁集团有限公司 | Overhauling method for converter equipment |
| CN105463151B (en) * | 2015-12-30 | 2018-06-15 | 莱芜钢铁集团有限公司 | A kind of repair method of converter installation |
| CN106011370A (en) * | 2016-08-09 | 2016-10-12 | 莱芜钢铁集团有限公司 | Converter furnace mouth flange on-line replacement method |
| CN106011370B (en) * | 2016-08-09 | 2019-01-04 | 莱芜钢铁集团有限公司 | The online replacing options of fire door flange of converter |
| CN107299186B (en) * | 2017-06-30 | 2018-11-30 | 攀钢集团工程技术有限公司 | Replace the device and method of converter mouth |
| CN107299186A (en) * | 2017-06-30 | 2017-10-27 | 攀钢集团工程技术有限公司 | Change the device and method of converter mouth |
| CN108676960A (en) * | 2018-06-04 | 2018-10-19 | 中国十七冶集团有限公司 | A kind of ultra-large type steelmaking converter modularization method installation method |
| CN109940358A (en) * | 2019-03-26 | 2019-06-28 | 武钢集团襄阳重型装备材料有限公司 | A kind of detachable trunnion assembly method of large-scale metallurgical slag ladle |
| 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 |
| CN111961800A (en) * | 2020-06-30 | 2020-11-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for replacing fixed steelmaking converter shell |
| CN111975310A (en) * | 2020-07-02 | 2020-11-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for replacing trunnion bearing at transmission side under abnormal condition of steel converter |
| CN111975310B (en) * | 2020-07-02 | 2022-02-18 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for replacing trunnion bearing at transmission side under abnormal condition of steel converter |
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