CN206616185U - The loss flue dust dust gathering arrester of coke oven installs chassis - Google Patents
The loss flue dust dust gathering arrester of coke oven installs chassis Download PDFInfo
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- CN206616185U CN206616185U CN201720194295.XU CN201720194295U CN206616185U CN 206616185 U CN206616185 U CN 206616185U CN 201720194295 U CN201720194295 U CN 201720194295U CN 206616185 U CN206616185 U CN 206616185U
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- gathering arrester
- dust gathering
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Abstract
The utility model offer is a kind of can to save set-up time, quick construction, the loss flue dust dust gathering arrester installation chassis of the coke oven of job safety in the case of coke oven does not stop production, and the dust gathering arrester is fixed on above the furnace roof coal charging car track of coal tower sidepiece；The two ends of dust gathering arrester, which are supported on, to be fixed on the support column in the end stand resistance wall of coke oven both sides, and the centre of dust gathering arrester is connected by drag-line with coal tower；Described to install the transverse-moving trolley that chassis includes to move on coal charging car track, the assembly platform being integrally fixed with transverse-moving trolley is removably attachable to the moulding bed on assembly platform top；The moulding bed has multiple, is arranged along coal charging car track direction；The distance between moulding bed is as big as possible in the length on coal charging car track direction, but no more than two support columns；The height of moulding bed is not less than the height that the support beam on the support columns, for supporting dust gathering arrester is fixed at two ends.
Description
Technical field
The loss flue dust dust gathering arrester that the utility model is related to coke oven installs chassis.
Background technology
1,200,000 tons/year of certain company coking engineering projects 2011 put into operation, go into operation within 2012.Two 6m coke ovens and surrounding village
Village distance is more than 1.2km, meets environmental regulation requirement at that time.But stepped up recently as national environmental standard and certain company
Consider from enterprise's long term growth, the spirit being responsible in line with Green Development and for society, intend that the processing of coke oven loss flue dust collecting is installed
Device.
The engineering belongs to environmental protection project, be by 2 × 58 hole 6m top dress coke oven in normal productive process, fire door, discharge,
Coaling the ash-laden gas of hole etc. leakage, above-mentioned situation solved by a set of coke oven loss flue dust collecting processing unit for setting up,
Two flue dust collecting facilities (dust gathering arrester) are set i.e. at the top of two coke ovens, the excessive of flue dust are controlled, in flue dust collecting
Facility top sets exhaust hood, through ventilation, reduces harmful gas concentration in flue dust collecting facility, will be collected by cleaning shaft
Flue dust import dedusting earth station, discharge fuel gas and dust after the purification of removing dust device, etc. concentration of harmful substance meet《Coking chemistry work
Industry pollutant emission standard》Requirement.The various operating modes thus brought are taken into full account simultaneously, required with meeting safety in production.
But dust enclosure volume is big, weight weight, how the dust gathering arrester positions, how to install, and is not especially changing coke oven
Original structure and situation about not stopping production, how the purpose of Fast Installation, save the set-up time, reduce to coke oven produce influence,
It is a problem.
Utility model content
The purpose of this utility model, which is to provide one kind, can save the set-up time in the case of coke oven does not stop production, fast apply
Work, the loss flue dust dust gathering arrester of the coke oven of job safety install chassis.
The loss flue dust dust gathering arrester of coke oven described in the utility model installs chassis, and dust gathering arrester is fixed on the stove of coal tower sidepiece
Push up above coal charging car track；The two ends of dust gathering arrester, which are supported on, to be fixed on the support column in the end stand resistance wall of coke oven both sides, dust
The centre of cover is connected by drag-line with coal tower；It is described that the transverse-moving trolley that chassis includes to move on coal charging car track is installed,
The assembly platform being integrally fixed with transverse-moving trolley, is removably attachable to the moulding bed on assembly platform top；The moulding bed has many
It is individual, arranged along coal charging car track direction；Moulding bed is as big as possible in the length on coal charging car track direction, but can not
The distance between more than two support columns；The height of moulding bed is not less than two ends and fixed on the support columns, for supporting dust gathering arrester
The height of support beam.
The loss flue dust dust gathering arrester of coke oven described in the utility model installs chassis, the upper surface of assembly platform and support column
Top end face is concordant.
The loss flue dust dust gathering arrester of coke oven described in the utility model, which is installed, sets multiple for pushing up on chassis, assembly platform
Play the jack of dust gathering arrester.
When assembling installation is carried out to dust gathering arrester using this installation chassis, dust gathering arrester is at least divided on coal charging car track direction
Three sections are assembled：First section close to coal tower side, the latter end away from coal tower, remaining be interlude；The dust gathering arrester installation method
Comprise the steps：
A, installation support column：Fix two respectively in the resistance wall of coke oven both sides end stand and be located at coal charging car track both sides
Support column；
B, assembling temporary mounting station car：It is described that the transverse-moving trolley that chassis includes to move on coal charging car track is installed,
The assembly platform being integrally fixed with transverse-moving trolley, is removably attachable to the moulding bed on assembly platform top；The moulding bed has many
It is individual, arranged along coal charging car track direction；Moulding bed is as big as possible in the length on coal charging car track direction, but can not
The distance between more than two support columns；The height of moulding bed is not less than two ends and fixed on the support columns, for supporting dust gathering arrester
The height of support beam；
C, the assembling of first section dust gathering arrester：First support beam is placed between two moulding beds on assembly platform, then group
It is placed on after into each component lifting of first section dust gathering arrester on moulding bed, then the integrally welded formation first section dust gathering arrester of each component,
First support beam and first section dust gathering arrester are fixedly linked again；By multiple jack on installation chassis first section
Dust gathering arrester and first support beam jack-up so that first support beam bottom surface is slightly above end face at the top of support column；
D, first section dust gathering arrester are installed：First section dust gathering arrester by coke oven coal-charging handlebar erecting bed car and on chassis is installed
Coal tower sidepiece is elapsed, first support beam is located above two support columns of coal tower；Jack pressure release, by first
Support beam is placed on two support columns；First support beam and support column are fixedly linked；Before first section dust gathering arrester
End is fixedly linked with coal tower；
E, installation chassis return：The moulding bed dismantled on installation chassis, is elapsed installation chassis away from coal tower by charging car
Coke oven end stand at, then the moulding bed of dismounting resetted；
F, the assembling of interlude dust gathering arrester：Being placed on after each component lifting of composition interlude dust gathering arrester on moulding bed, then
The integrally welded formation interlude dust gathering arrester of each component；By multiple jack on installation chassis interlude collection
Dust hood jack-up so that interlude dust gathering arrester is slightly above first section dust gathering arrester；
G, cable support are installed：Cable support is fixed on coal tower upper end；
H, interlude dust gathering arrester are installed：Interlude collection by coke oven coal-charging handlebar erecting bed car and on chassis is installed
First section dust gathering arrester sidepiece is arrived in dust hood passage；In the case of drag-line does not stress the two ends of drag-line respectively with cable support and centre
Section dust gathering arrester top is connected；Jack declines so that interlude dust gathering arrester aligns with first section dust gathering arrester, the process that jack declines
Gradually stress gradually increases middle drag-line；Weld the joint of interlude dust gathering arrester and first section dust gathering arrester；Jack pressure release；
L, installation chassis return：Installation chassis is elapsed by charging car at the coke oven end stand away from coal tower；
M, the assembling of latter end dust gathering arrester：Second support beam is placed between two moulding beds on assembly platform, then group
It is placed on after into each component lifting of latter end dust gathering arrester on moulding bed, then the integrally welded formation latter end dust gathering arrester of each component,
Second support beam and latter end dust gathering arrester are fixedly linked again；By multiple jack on installation chassis latter end
Dust gathering arrester and second support beam jack-up so that second support beam bottom surface is slightly above end face at the top of support column；
N, latter end dust gathering arrester are installed：Latter end dust gathering arrester by coke oven coal-charging handlebar erecting bed car and on chassis is installed
Interlude dust gathering arrester sidepiece is elapsed, second support beam is located remotely from above two support columns of coal tower；Jack pressure release,
Second support beam is placed on two support columns；Second support beam and support column are fixedly linked；Welding and end
The joint of section dust gathering arrester and interlude dust gathering arrester；
O, installation chassis return are simultaneously removed：The moulding bed dismantled on installation chassis, elapses installation chassis by charging car remote
Removed at the coke oven end stand of coal tower, then installation chassis.
The beneficial effects of the utility model：
1st, the loss flue dust dust gathering arrester is novel in design, is skillfully constructed, just as having added a lid to coke oven, prevents flue dust from escaping
Dissipate, build bottom and collect flue dust, reach national requirements for environmental protection.
2nd, the loss flue dust dust gathering arrester utilizes original coke oven construction, and extension supporting post is used in the end stand resistance wall of coke oven both sides
In support dust gathering arrester, dust gathering arrester is installed using drag-line, and is connected using coal tower with drag-line, space has been saved, has substantially reduced construction
Cost, with good application prospect and promotional value.
3rd, dust gathering arrester sectional making, assembling, solve the lifting problem of big wt pts.
4th, using the coal charging car track of coke oven, chassis is installed setting thereon.It is both the group for being segmented dust gathering arrester to install chassis
Assembling platform, is also the shipping platform for being segmented dust gathering arrester, is also the mounting platform for being segmented dust gathering arrester.Installed point using Assembling Jack Plane Set
After the dust gathering arrester of section, installation site is arrived in convenient passage, greatly saves the engineering time so that be mounted for possibility online, is produced
Substantially do not stop production, remarkable in economical benefits.
5th, chassis is installed using charging car traction, without setting other power-equipments again to install chassis, saves construction cost
With.
6th, the height of moulding bed is not less than the height of support beam so that support beam can be placed on installation chassis, with
The movement of installation chassis, facilitates the installation of support beam.Certainly, the height of best moulding bed and the height of support beam are identical, this
Sample can play a part of moulding bed before support beam is installed on support column, and branch is played to installing the dust gathering arrester on chassis
Support is acted on.
7th, the upper surface of assembly platform is concordant with end face at the top of support column, enables to jack only to need the less height of jack-up
Degree allows for being located at the bottom surface for installing the support beam on chassis higher than end face at the top of support column, reduces workload, contracts
The short activity duration.
8th, install chassis on jack after each section of dust gathering arrester of jack-up then decline, during decline, drag-line gradually by
Power gradually increases, it is therefore prevented that drag-line moment is suddenly by larger shock loading, it is ensured that job safety.
Brief description of the drawings
Fig. 1 is coke oven loss flue dust dust gathering arrester supporting construction schematic diagram；
Schematic diagram when Fig. 2 is the assembling of first section dust gathering arrester；
Fig. 3 is schematic diagram when first section dust gathering arrester is installed；
Fig. 4 is schematic diagram when second segment dust gathering arrester is installed；
Fig. 5 is schematic diagram when latter end dust gathering arrester is installed；
Fig. 6 is the schematic diagram for installing chassis；
Fig. 7 is to install the schematic diagrames such as chassis, support column；
The schematic diagram of what Fig. 8 was first section dust gathering arrester in assembling install chassis, first support beam, dust gathering arrester etc.；
Fig. 9 is the schematic diagram that jack installs chassis, first support beam, dust gathering arrester etc. in jack-up；
Figure 10 is the plan of reinforcement and coal tower；
Figure 11 is the plan for reinforcing collar tie beam and coal tower；
Figure 12 is the schematic diagram of the loss smoke collecting device after installation etc.；
Figure 13 is the side view of the dust gathering arrester in Figure 12.
Figure 14 is construction flow chart.
In figure, dust gathering arrester 1, first section 11, second segment 12, the 3rd section 13, latter end 14, support beam 2, first support beam
21, second support beam 22, installation chassis 3, transverse-moving trolley 31, assembly platform 32, moulding bed 33, reinforcement 4, jack 5, plus
Gu collar tie beam 6, cable support 7, drag-line 8, oblique roof truss 15, coal charging car track 16, support column 17, resistance wall 18, coal tower 19, coke oven
20。
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
1st, the contents of a project
Field conditions：Existing coke oven two i.e. 1#, 2# coke oven 20, positioned at the both sides of coal tower 19.Furnace roof has coal charging car track 16,
Coke oven both sides end stand has resistance wall 18.
Coke oven loss flue dust collecting processing unit is made up of the part such as two dust gathering arresters, cleaning shaft, dedusting earth station.
Each 95.36 meters of dust gathering arrester overall length, 81.36 meters of span.23.78 meters of setting height(from bottom), 2.5 meters of support beam deck-molding,
Dust gathering arrester always weighs about 460t.Weight is evenly distributed on 4 support columns, and top has inclined guy cable stretching to prevent sagging in the middle of dust gathering arrester become
Shape.Span is big, from great, high to dust gathering arrester girder, cable support, support column, support beam welding requirements, is applying for the engineering
The maximum part of work difficulty.
Engineering construction is carried out simultaneously with coking production, belongs to online hot charging construction, and cross-operation is more, and construction space is narrow and small,
Duration is tight, is constructed in addition in coke oven producing region, construction period workmen is in harmful health of human body environment, construction safety
Environmentally friendly management difficulty is big.
Construction technology process, referring to Figure 14.
2nd, preparation of construction
The condition possessed is needed before installation
1) component assembly, lifting region barrier and debris are cleaned out, and paved, are padded.Crawler crane travel region roadbed
Compacting, substrate of paving the way.
2) fully linked up with owner, coordinate the cross-operation time.It is required that owner's cold stoking time.
3) because job site place is limited, whole structure steel fabrication work processing place in selection scene by processing factory or in addition
Complete, erecting bed is transported to according to erection sequence one by one by flat car, to scene after carry out assembling splicing, reach lifting requirements.
3rd, the installation process of dust gathering arrester etc.
Referring to Fig. 1, the both sides of dust gathering arrester 1 have the oblique roof truss 15 outwards tilted down；Dust gathering arrester is fixed on coal tower sidepiece
The top of furnace roof coal charging car track 16；Support column 17 is fixed in coke oven both sides end stand resistance wall 18, and the two ends of dust gathering arrester pass through
Support beam 2 is supported on the support columns.Dust gathering arrester is divided into four sections on coal charging car track direction and assembled：Close to coal tower side
First section 11, second segment 12, the 3rd section 13, the latter end 14 away from coal tower.Second and third section of dust gathering arrester passes through drag-line and coal tower phase
Even.
The installation process of dust gathering arrester etc. is as follows.
A, installation support column 17 and reinforcement 4：Fix two respectively in the resistance wall 18 of coke oven both sides end stand and be located at dress
The support column 17 of coal car track both sides；Referring to Figure 10, the coal tower sidepiece relative with dust gathering arrester front end is provided with reinforcement 4, and
Reinforcing bar is implanted into reinforcement.
B, assembling temporary mounting station car 3：Referring to Fig. 6, the installation chassis includes what can be moved on coal charging car track
Transverse-moving trolley 31, the assembly platform 32 being integrally fixed with transverse-moving trolley, is removably attachable to the moulding bed on assembly platform top
33；The moulding bed has multiple, is arranged along coal charging car track direction；Referring to Fig. 7, moulding bed is on coal charging car track direction
Length it is as big as possible, but the distance between no more than two support columns；The height phase of the height of moulding bed and support beam
Deng；
C, first section dust gathering arrester 11 are assembled：Referring to Fig. 2, Fig. 8, first support beam 21 is placed two on assembly platform
It is then that each component is integrally welded between moulding bed, then being placed on after each component lifting of composition first section dust gathering arrester on moulding bed
First section dust gathering arrester is formed, then first support beam and first section dust gathering arrester are fixedly linked；By on installation chassis
Multiple jack 5 are first section dust gathering arrester and first support beam jack-up so that first support beam bottom surface is higher than support column
Top end face 50mm；
D, first section dust gathering arrester are installed：Referring to Fig. 3, Fig. 9, by coke oven coal-charging handlebar erecting bed car and on chassis is installed
The passage of first section dust gathering arrester arrive coal tower sidepiece, first support beam 21 is located above two support columns of coal tower；It is very heavy
5 pressure releases are pushed up, first support beam is placed on two support columns；First support beam and support column are fixedly linked；
The front end of first section dust gathering arrester is connected with the reinforcing bar in implantation reinforcement 4；
E, installation chassis return：In order to prevent first piece branch of the moulding bed with being already installed on support column during return
Crossbeam interference is supportted, installation chassis is elapsed the coke oven end stand away from coal tower by the moulding bed 33 installed on chassis of dismantling by charging car
Place, then the moulding bed of dismounting is resetted；
F, the assembling of second segment dust gathering arrester：Being placed on after each component lifting of composition second segment dust gathering arrester 12 on moulding bed, connect
The integrally welded formation second segment dust gathering arrester of each component；By multiple jack 5 on installation chassis second
Section dust gathering arrester jack-up so that second segment dust gathering arrester is slightly above first section dust gathering arrester；
G, cable support are installed：Referring to Figure 11, Figure 13, set in coal top of tower and reinforce collar tie beam 6, cable support 7 is fixed
On collar tie beam is reinforced；
H, second segment dust gathering arrester are installed：Referring to Fig. 4, by coke oven coal-charging handlebar erecting bed car and on chassis is installed
First section dust gathering arrester sidepiece is arrived in the passage of second segment dust gathering arrester；In the case of drag-line 8 does not stress the two ends of drag-line respectively with drag-line
Support is connected with second segment dust gathering arrester top；Jack 5 declines so that second segment dust gathering arrester aligns with first section dust gathering arrester, very heavy
Gradually stress gradually increases drag-line during top declines；Weld the joint of second segment dust gathering arrester and first section dust gathering arrester；It is very heavy
Push up pressure release；
I, installation chassis return：Installation chassis is elapsed by charging car at the coke oven end stand away from coal tower；
J, the 3rd section of dust gathering arrester assembling：Being placed on after each component lifting of the 3rd section of dust gathering arrester of composition on moulding bed, then
Each component the 3rd section of dust gathering arrester of integrally welded formation；By the way that the 3rd section is collected installed in the multiple jack installed on chassis
Dust hood jack-up so that the 3rd section of dust gathering arrester is slightly above second segment dust gathering arrester；
K, the 3rd section of dust gathering arrester are installed：With reference to Fig. 4, by coke oven coal-charging handlebar erecting bed car and on chassis is installed
Second segment dust gathering arrester sidepiece is arrived in 3rd section of dust gathering arrester passage；In the case of drag-line does not stress the two ends of drag-line respectively with drag-line
Support and the 3rd section of dust gathering arrester top are connected；Jack declines so that the 3rd section of dust gathering arrester aligns with second segment dust gathering arrester, very heavy
Gradually stress gradually increases drag-line during top declines；Weld the joint of the 3rd section of dust gathering arrester and second segment dust gathering arrester；Thousand
Jin top pressure release.
L, installation chassis return：Installation chassis is elapsed by charging car at the coke oven end stand away from coal tower；
M, the assembling of latter end dust gathering arrester：Second support beam 22 is placed between two moulding beds on assembly platform, then
It is placed on after each component lifting of composition latter end dust gathering arrester on moulding bed, then the integrally welded formation latter end dust of each component
Cover, then second support beam and latter end dust gathering arrester are fixedly linked；By installed in the multiple jack handles installed on chassis
Latter end dust gathering arrester and second support beam jack-up so that second support beam bottom surface is slightly above end face at the top of support column；
N, latter end dust gathering arrester are installed：Referring to Fig. 5, the end by coke oven coal-charging handlebar erecting bed car and on chassis is installed
Interlude dust gathering arrester sidepiece is arrived in section dust gathering arrester passage, and second support beam 22 is located remotely from above two support columns of coal tower；
Jack pressure release, second support beam is placed on two support columns；Second support beam and support column stationary phase
Even；Welding and the joint of latter end dust gathering arrester and interlude dust gathering arrester；
O, installation chassis return are simultaneously removed：The moulding bed dismantled on installation chassis, elapses installation chassis by charging car remote
Removed at the coke oven end stand of coal tower, then installation chassis.Oblique roof truss 15 is finally sling using crane, the two of dust gathering arrester are fixed on
Side, is basically completed installation process, referring to Figure 12, Figure 13.
4th, the key point of this technology
4.1 hoisting technology
(1) Hoisting Program principle
1) loop wheel machine selection does not influence coke oven to be produced as the first principle to try one's best.
2) according to the weight and setting height(from bottom) of structure, it is necessary to consider the lifting performance of lifting machine, mainly include
Whether weight, the radius of clean-up, lifting altitude, the radius of gyration meet lifting requirements.
3) walking road and the site environment in lifting site location region simultaneously for hoisting machine tool, it is main to consider
Build up structures, cable duct, support of pipelines, the influence to crane lifting erect-position.
4) lifting machine is selected according to the personnel labour of construction period, input.
5) walking road and the foundation in lifting site location region simultaneously for hoisting machine tool must smooth, heavily fortified point
Real reliable, its operating position should not be arranged on slope and soft soil horizon.
6) suspension centre：According to the angle of the weight of girder steel, steel wire rope and girder steel, the new and old of steel wire rope, radical and use safety
The parameters such as coefficient, select the steel wire rope of suitable diameter, it is ensured that every steel wire rope institute's stress is in its allowed band.Consider to hang simultaneously
The lifting altitude of machine and the setting height(from bottom) of girder steel, selected steel wire rope are unsuitable long.
(2) the selected scheme of main loop wheel machine
1) dust gathering arrester assembling Hoisting Program
Dust gathering arrester girder weighs about 110t, 95.36 meters of overall length, 81.36 meters of span.23.78 meters of setting height(from bottom), support beam is high
2.5 rice.Dust gathering arrester is integrally divided into 4 sections of installations, in place using parallel passage method.Respectively in the charging car of 1#, 2# coke oven top platform
Chassis is installed in rail superior portion fabrication and installation.Constitute the girder of dust gathering arrester, support beam, wind up, lower edge, support, both sides flank etc.
Part is hung at the top of coke oven by the tower auxiliary operating mode crawler cranes of QUY260 after completing and installs carry out group pair on chassis.
1#, 2# coke oven lift site location in the middle of the ram track just to the position at each repairing fire door respectively, so
Ram is not influenceed normally to discharge of the coke.Most heavy 29 tons of dust gathering arrester girder lifting capacity, 28 meters of operating radius.
In summary, according to crane performance parameter, and this engineering practice is combined, this engineering is 2 from main loop wheel machine
260t crawler cranes.Dust gathering arrester girder uses segmental hoisting, first to fourth section of dust gathering arrester girder substance be respectively 24t, 29t, 30t,
27t.Main frame is lifted using 260 tons of crawler cranes, plus tower auxiliary operating mode.42 meters of mobile jib length, 28 meters of the radius of gyration, rated load weight
33 tons, meet lifting requirements.
2) Hoisting Program of support column.
2# coke-oven coal towers side 2 support column is installed first, single support column most weighs about 11t, and Standing position of a crane is in coal tower with supporting
Outside, 2 tracks centres of ram are lifted in the middle of anti-wall.Radius of gyration 28m when support column is lifted, but cleaning shaft is with hanging
Car large arm conflicts, and crane large arm need to carry out operation above cleaning shaft, and 76 meters of crane brachium is needed through measuring and calculating.According to crane performance
Parameter, and this engineering practice is combined, this engineering is 500t truck cranes from loop wheel machine.Radius of gyration when support column post is lifted
28m, 78.6 meters of principal arm length, rated load weight 18.6t meets and required.After support column is installed in place, to prevent it by ring around
Shift in position occurs for border influence, need to do temporary support with 6 meters long I 20a I-steel, is removed after dust gathering arrester integral installation is in place.
Secondly 1# coke-oven coal towers side 2 support column is installed, single support column most weighs about 17.5t, Standing position of a crane and operating mode
The machine-team of 500t truck cranes 1 can need to be used during installation with 2# coke ovens.Temporary support is with 2# coke oven methods.
3) coal tower cable support Hoisting Program.
Cable support center section is installed first, single hook weighs about 14t, 52 meters of setting height(from bottom), during because installing coke side coal tower with
Suspension arm of crane conflicts, and can not be lifted through measuring and calculating with the direct erect-position of 1 500t truck crane, station need to be located at coal tower and resistance wall during lifting
Coordinated in the middle of middle outside, two tracks of ram and with 2 500T cranes and installed, 4 groups of cable support center section point (4 hook)
Lifting.
Secondly cable support two-end part is installed, single hook weighs about 13t, is divided into the lifting of 4 hooks, and install cable support needs 2 altogether
500T truck cranes 3 days.
4) cleaning shaft Hoisting Program, as needed setting.
4.2 steel construction processing and fabricatings
95.36 meters of this engineering single seat dust gathering arrester overall length, 81.36 meters of span.23.78 meters of setting height(from bottom), 2.5 meters of deck-molding, collection
Dust hood always weighs about 460t, manufacturing process：
(1) setting-out number is expected, (2) cutting, the requirement of (3) groove, (4) correction, (5) drilling, (6) assembling, (7) welding, (8)
Steel member is pre-splicing, (9) derusting, paint, numbering.
4.3 coal tower strengthening reconstruction technologies
Dust gathering arrester first, the 4th section (first section, latter end) when installing, the support of bracing members post, bracing members are arranged at dust gathering arrester bottom
Post is set up on the resistance wall top of coke oven.First section dust gathering arrester truss is with increasing built-in fitting weldering newly at the ▽ 26.780m platforms in the middle part of coal tower
Connect in succession.Second and third section of dust gathering arrester bottom of the loss smoke collecting device is supported without support column, is suspended in midair and supported using drag-line, needed
Zip support is set up after original coal top of tower strengthening reconstruction, the fixation of drag-line is carried out.
(1) the ▽ 26.780m platform reinforcement means in the middle part of coal tower
Referring to Figure 10, consolidation process is carried out to pusher side and the coal tower landing beam in coke side direction using the method for bar planting.Figure 10
Middle dotted line represents coal tower original structure, and solid line represents reinforcement 4.
(2) coal top of tower reinforcement technique method
Strengthening reconstruction carried out using bar planting method to the beams of original coal top of tower ▽ 52.000m surroundings, and by the burnt both sides of machine
Inclined roof is changed to flat-top, is easy to the installation of cable support to fix.Dotted line represents coal tower original structure in Figure 11, and solid line represents fixing collar
Beam 6.
(3) concrete beam strengthening construction technology
Construction technology:Snap the line positioning → drilling → hole flushing → injecting glue → bar planting → curing conservation → pullout tests (sampling observation) →
Tie up muscle pouring concrete.
(4) coal top of tower cable support is installed
Single cable rack beams weigh about 10t, 52 meters of setting height(from bottom), because coal tower conflicts with truck crane arm when installing coke side,
Erect-position in the middle of coal tower and resistance wall centre outside, 2 tracks of ram and coordinates installation with 2 500t truck cranes during lifting.
4.4 design and fabrications install chassis
The installation of dust gathering arrester is carried out using passage method, the engineering time under production conditions is reduced, is that owner brings economy
Benefit, temporary mounting station car is devised for this, Fig. 6, Fig. 7 is seen.
The installation chassis is made up of transverse-moving trolley, assembly platform, moulding bed, is assembled in coke oven end stand, built-up time
One day, lifted with main loop wheel machine 260t crawler cranes.The installation chassis utilizes charging car using the coal charging car track on former coke oven top
Progress is drawn to installation site.The height and width of assembly platform above be not to influence chassis to pass through and collect on furnace roof
Most long section after dust hood segmentation smoothly can be assembled into principle on platform and be designed, and the design of moulding bed and support beam size
Consistent, after convenient passage in place, fast accurate is really in place, is easy to save on line the set-up time.
The assembling of 4.5 dust gathering arresters
When chassis is installed in assembling, arrange dust gathering arrester member segments to march into the arena, be placed in predetermined surface dump on the ground, treat
Assembling Jack Plane Set install finish after, first carry out girder lifting, lifted using 260t crawler cranes.
Integrated cover girder is divided into four sections.
(1) assembly of dust gathering arrester girder
Dust gathering arrester girder does framework by 4 H profile steels, and centre is supported and stay bolt with angle steel, wind up, lower edge, oblique roof truss it is equal
Welded for angle steel, longer using steel section size, single shaped steel can not meet size requirement, need to carry out shaped steel splicing.
Dust gathering arrester girder mainly takes on-site consolidation.The assembly of dust gathering arrester girder is from 50t and 25t truck cranes, 10t gantry
Hang, and strictly carried out by drawing size.Consider transport routes and haulage vehicle, every section of dust gathering arrester girder respectively long 23m, 23m,
27m, 22m, every meter of dust gathering arrester girder nearly weigh 1.05 tons.Every section nearly weighs 24t, 29t, 30t, 27t respectively, totally 4 sections.Every section of dust
The 2 sections of transports, on-site consolidation group pair again of cover girder point.
Dust gathering arrester girder will consider that group, to direction, according to loop wheel machine rotational case, determines group to direction when assembled.
Dust gathering arrester girder uses segmental hoisting, and first to fourth section of dust gathering arrester girder substance is respectively 24t, 29t, 30t, 27t.
Main frame is lifted using 260 tons of crawler cranes, plus tower auxiliary operating mode.42 meters of mobile jib length, 28 meters of the radius of gyration, rated load weight 33
Ton, meets lifting requirements.
Crawler crane is marched into the arena after assembling finishes, and dust gathering arrester girder starts segmentation and marched into the arena, with the shortest time by dust gathering arrester girder group
To completing, special messenger checks tie point welding quality, reinforcement measure etc..Wire line hitch is fastened and two ends slips rope, slipped rope and use φ
20mm coir ropes 4, every 100 meters.
Examination is first carried out before lifting to hang, and is slowly risen when 200mm is high from the ground and stopped by special messenger commander, observation lifting lockset,
Suspension centre, deformation of member degree welds situation, and whether loop wheel machine performance etc. meets safe condition.After confirmation has no problem, loop wheel machine raising
1 meter, then fall 0.5 meter, be repeated 2 times, confirm it is errorless after, loop wheel machine, which slowly rises, rises to hoisting height, then slowly counterclockwise
Above rotation extremely installation chassis, now both sides slip rope it is noted that the angle of observation dust gathering arrester girder, controls it steadily, forward direction.Rotation
Go to behind position, slowly return hook, by dust gathering arrester girder being placed on installation chassis steadily.After the completion of to arrange special messenger to check, close
Can decoupling device after lattice.
Dust gathering arrester main cable and girder uses 4, φ 26mm steel wire ropes, single 18 meters of rope length, 4 suspension centres.Take into full account in lifting
The structural strength and stability of operating mode next part dust hood girder in itself.Consider the reinforcement measure of suspension centre.10 tons of high-strength snap rings 4.
First paragraph assembles points for attention：
First the center line of two crossbeams is marked on chassis is installed, by 260t crawler cranes by 2 sections of dust gathering arrester girders
And the support beam of support portal frame is hung to the installation chassis of the completion of fabrication and installation and put on right position, support beam is placed on dust
The blending bolt fastening of cover girder bottom.
(2) truss assembling
When dust gathering arrester girder both sides main couple is assembled, drawing requirement has spring quantum, and its springing height size is by drawing
Control.Lateral rigidity difference produces flexural deformation during to prevent that dust gathering arrester girder main couple from turning over vertical and lifting, while in view of spelling
Place limitation is filled, reinforcement measure will be taken by taking in segmented assembly method, transportation, prevent the assembled matter of moderate finite deformation influence
Amount.
By lower edge, wind up, the lifting such as bearing diagonal to install chassis and with 2 dust gathering arrester girder weldings.
Assembled program is：The unit that will splice is placed on platform for lining, and → levelling → the logical line → welding is positioned → of drawing is checked
Size → welding.
Component is checked before assembling, when the deformation of member, defect exceed tolerance, must be handled.Should when assembled
Arch camber is carried out by design drawing requirement.
(3) top closing plate is welded in dust gathering arrester assembly after finishing, and installs cleaning shaft.
4.6 dust gathering arresters quickly elapse technology
(1) general arrangement：
1) after the completion of first paragraph dust gathering arrester group pair with 4 100t hydraulic jacks by the overall jack-up of dust gathering arrester and support beam
More than support beam designed elevation 50mm.Then chassis will be installed and be pulled to the slow pressure release of jack after dust gathering arrester installation site, will
Support beam is placed on support column top, after Pass line adjustment is good, support beam and support column firm welding, dust gathering arrester and coal tower
Locate the complete release of jack after embedded board firm welding, remove.First paragraph dust gathering arrester is installed.
2) chassis will be installed and is pulled to stove end stand, start second segment assembling.Second segment assembling sequence is with first paragraph dust gathering arrester phase
Same but second segment is without support beam.
3) after second segment dust gathering arrester is completed, with 4 100t hydraulic jacks by the overall jack-up 50mm of dust gathering arrester.Will peace
Dress chassis is pulled to second segment dust gathering arrester and first paragraph dust gathering arrester junction firm welding behind dust gathering arrester designated mounting position.Drag-line
Producer starts to install first group of 4 drag-line.Tensioning immediately after drag-line is installed, tensioning requirement will make dust gathering arrester girder reach requirement mark
Height, the complete release of jack, is removed.Second segment dust gathering arrester is installed.
4) the 3rd section of dust gathering arrester assembling, installation are completely identical with second segment dust gathering arrester.
5) after the 3rd section of dust gathering arrester installation, start that other two support columns away from coal tower are installed, now 260t is carried out
Band, which is hung, to be mounted directly.
6) the 4th section of dust gathering arrester assembling, installation are completely identical with first paragraph dust gathering arrester.
2 coke oven erection sequences are identical.
(2) first paragraph dust gathering arrester is installed：
1) before first paragraph dust gathering arrester is installed, the necessary installation of support column, support beam above wouldn't be installed, so
Passage work is not below interfered with.And support beam above is hung to the installation that fabrication and installation are completed with 260t crawler cranes
Chassis is simultaneously placed on the blending bolt fastening of dust gathering arrester girder bottom, and play the moulding bed effect installed on chassis.
2) after the completion of first paragraph dust gathering arrester group pair, in order to save the set-up time in place, it will be collected with 4 100t hydraulic jacks
Dust hood and the overall jack-up of support beam exceed support beam designed elevation 50mm.Then it is pulled to collection by chassis is installed with firing machine machine
The slow pressure release of jack after dust hood installation site, support column top is placed on by support beam, after Pass line adjustment is good, support beam
With support column firm welding, dust gathering arrester and the complete release of jack after embedded board firm welding at coal tower, remove.First paragraph dust
Cover is installed.
(2) second segment, the 3rd section of installation
1) chassis will be installed and is pulled to coke oven end stand, start second segment assembling.Second segment assembling sequence is with first paragraph dust gathering arrester
Identical but second segment is without support beam.
2) after second segment dust gathering arrester is completed, with 4 100t hydraulic jacks by the overall jack-up 50mm of dust gathering arrester.With adding
Coal car will install chassis and be pulled to second segment dust gathering arrester and the progress of first paragraph dust gathering arrester junction behind dust gathering arrester designated mounting position
Group pair, whole weld seam firm welding backstay producers start to install first group of 4 drag-line.Tensioning immediately, tensioning after drag-line is installed
It is required that to make dust gathering arrester girder reach requirement absolute altitude, the complete release of jack, remove.Second segment dust gathering arrester is installed.
(3) the 3rd sections of dust gathering arrester assemblings, installations are completely identical with second segment dust gathering arrester.
(4) the 4th sections of dust gathering arresters are installed
1) after the 3rd section of dust gathering arrester installation, start that support support column is installed, now 260t crawler cranes can be mounted directly.
2) the 4th section of dust gathering arrester assembling, installation are essentially identical with first paragraph dust gathering arrester.
(5) tiltedly roof truss is installed
Dust gathering arrester assembling opportunity side part has chimney to influence dust gathering arrester integral slipping, therefore tiltedly roof truss is first without overall peace
Dress, after installing oblique roof truss after dust gathering arrester installation again.
5th, the principal character (or feature) of this technology
(1) remaking coal-towers technology
Because second and third section of dust gathering arrester bottom of the engineering is supported without support column, suspended in midair and supported using drag-line.Need to be in original coal
Consolidation process is carried out in the middle part of tower, support is set up after original coal top of tower strengthening reconstruction, the fixation of drag-line is carried out.In the middle part of coal tower
▽ 26.780m platforms consolidation process is carried out to pusher side and the landing beam in coke side direction using the method for bar planting.In original coal tower
Top surrounding carries out strengthening reconstruction, sets up the support of stay guy, the cable support bears the loss cigarette of 1#, 2# coke oven at two ends
The pulling force of dirt collection device, such strengthening reconstruction may make full use of original structure, save construction cost.
(2) design and make the installation chassis of dust gathering arrester assembling and passage
Using the method for assembling, being installed using special installation chassis passage to installation site in coke oven end stand, effective solution
The problems such as Active workings are limited, the duration is tight when certainly being constructed in production, reaches the purpose of Fast Installation.Chassis is installed and uses furnace roof
Coal charging car track, is drawn using charging car.
(3) using quick passage technology, fast accurate installs dust gathering arrester
After the completion of dust gathering arrester group pair, dust gathering arrester and the overall jack-up of support beam are exceeded into branch with 4 100t hydraulic jacks
Support crossbeam designed elevation 50mm.Then chassis will be installed and draw to dust gathering arrester installation site the slow pressure release of jack, will be supported
Crossbeam is placed on support column top, saves the set-up time.
(4) technology is synchronously symmetrically installed using drag-line
The reinforcing collar tie beam that coal tower napex is set up is while bear the drawing of the loss smoke collecting device of 1#, 2# coke oven at two ends
Power, to ensure collar tie beam stress balance, prevents one end stress from pullling coal tower and causing coal tower to tilt, destroy.Treat suspension cable installation
Afterwards again by hydraulic jack pressure release, while installing makes coal tower be solely subjected to pressure and be not subject to lateral pull, when installing hoist cable,
The hoist cable of 1#, 2# coke oven loss smoke collecting device is installed and symmetrically synchronously carried out, synchronous symmetrical tensioning.
6th, this technology is actually reached effect and the function and significance to Promote Technology
New Type Coke Oven loss smoke collecting device hot line Fast Installation technology has broken routine, the assembled cigarette on passage platform
Dirt collecting hood, operation side is small, little impact on production, fast using passage method efficiency of construction height, installation rate；Next uses 4
The top adjustment of individual hydraulic pressure jin, regulates the speed fast, installation period is short, and the mounting technique is in a leading position level.
The characteristics of this technology makes full use of coke oven original structure frame frame, using rational construction method and special measure, adopts
Passage method installs dust gathering arrester method, even more saves great amount of cost for manufacturing enterprise, on producing no influence, is successfully realized side
Produce side construction, it is ensured that construction quality, safety and environmental protection, greatly shorten the construction period, applied while also being saved for construction enterprises
Workshop, it is a kind of quick, economic method.The success of the technology will have wide market prospects, and same type engineering is applied
Instrument has important directive significance and reference value.
Claims (3)
1. the loss flue dust dust gathering arrester of coke oven installs chassis, it is characterized in that：Dust gathering arrester is fixed on the furnace roof charging car of coal tower sidepiece
Above track；The two ends of dust gathering arrester, which are supported on, to be fixed on the support column in the end stand resistance wall of coke oven both sides, the centre of dust gathering arrester
It is connected by drag-line with coal tower；It is described that the transverse-moving trolley that chassis includes to move on coal charging car track is installed, with traversing
The assembly platform that car is integrally fixed, is removably attachable to the moulding bed on assembly platform top；The moulding bed has multiple, along dressing
Coal car orbital direction is arranged；Moulding bed is as big as possible in the length on coal charging car track direction, but no more than two
The distance between support column；The height of moulding bed is not less than the support beam of two ends fixation on the support columns, for supporting dust gathering arrester
Height.
2. the loss flue dust dust gathering arrester of coke oven as claimed in claim 1 installs chassis, it is characterized in that：The upper surface of assembly platform
It is concordant with end face at the top of support column.
3. the loss flue dust dust gathering arrester of coke oven as claimed in claim 1 installs chassis, it is characterized in that：Set on assembly platform many
The individual jack for jack-up dust gathering arrester.
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| CN201720194295.XU CN206616185U (en) | 2017-03-01 | 2017-03-01 | The loss flue dust dust gathering arrester of coke oven installs chassis |
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| CN201720194295.XU CN206616185U (en) | 2017-03-01 | 2017-03-01 | The loss flue dust dust gathering arrester of coke oven installs chassis |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910717A (en) * | 2018-08-08 | 2018-11-30 | 中国十七冶集团有限公司 | A kind of handling apparatus for prefabricated base board |
| CN109653043A (en) * | 2019-01-23 | 2019-04-19 | 中国五冶集团有限公司 | Oven top of coke oven dust-removing vehicle rail set and installation method |
-
2017
- 2017-03-01 CN CN201720194295.XU patent/CN206616185U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108910717A (en) * | 2018-08-08 | 2018-11-30 | 中国十七冶集团有限公司 | A kind of handling apparatus for prefabricated base board |
| CN109653043A (en) * | 2019-01-23 | 2019-04-19 | 中国五冶集团有限公司 | Oven top of coke oven dust-removing vehicle rail set and installation method |
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