CN107490004B - Power plant boiler central cylinder of separator remodeling method - Google Patents
Power plant boiler central cylinder of separator remodeling method Download PDFInfo
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- CN107490004B CN107490004B CN201710715789.2A CN201710715789A CN107490004B CN 107490004 B CN107490004 B CN 107490004B CN 201710715789 A CN201710715789 A CN 201710715789A CN 107490004 B CN107490004 B CN 107490004B
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- cylinder
- central tube
- separator
- platform
- assembling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
- F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
- F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
- F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of power plant boiler central cylinder of separator remodeling methods, it is small in size to efficiently use industrial elevator transhipment by the way that whole circle cylinder is cut into six equal aliquots, without setting up high tower crane, the small no security risk of risk factor, it is easier to be welded and fixed, intensity is high after welding, and service life is long, use cost is low, easy to operate simple and direct without removing railing when lifting, installation effectiveness is high.
Description
Technical field
The invention belongs to power plant boilers, and field, the in particular to novel remodeling method of a kind of central cylinder of separator is transformed.
Background technique
The central tube of power plant boiler separator use the time after will deformed damaged, use is just unable to satisfy after deformation and is wanted
It asks, it is therefore desirable to center of deformation cylinder remove and is installed newly, existing installation remodeling method is the multiple high tower cranes of setting, then
The central tube lifting of one whole circle is welded again up, the whole method sling of enclosing of this high tower crane can satisfy certain installation
Transformation requires, but there is also many significant deficiencies, high tower crane is set up at high cost, and installation operation is very troublesome, and a whole circle lifts
Danger coefficient is big, and there are larger security risks, needs frequently to remove railing, cumbersome and inconvenient, whole lap welding in hoisting process
It is big to connect difficulty, welding rear center cylinder intensity is inadequate, and service life is short, and use cost is high.
The technical problem to be solved in the present invention is to provide one kind without setting up the small dangerous system of high tower crane, cutting piece hoisting difficulty
Number it is small, substantially without in security risk, hoisting process without remove railing, it is easy to operate it is simple and direct, welding difficulty is small, welding rear center
The central tube remodeling method that cylinder intensity is high, service life is long, use cost is low.
Summary of the invention
For solve the above-mentioned prior art need to set up high tower crane, set up at high cost, risk factor it is big there are larger security risk,
Railing, welding difficulty are big, welding rear center cylinder intensity is inadequate, service life is short, use cost is high etc. need to be frequently removed when lifting
Problem, the present invention adopts the following technical scheme:
The present invention provides a kind of power plant boiler central cylinder of separator remodeling method, includes the following steps standard before one) construction
Standby be laid on central tube track route builds the landing stage of scaffold, to facilitate chain block to the hook that connects of disassemblerassembler, in addition
Set up full hall frame inside central tube, height distance central tube bottom 600mm, and as the dismounting of old central tube continuation is up taken
If the load capacity of full hall frame meets 70kg/ ㎡；Two) according to field condition, adaptation to local conditions is hung crane tool arrangement with crane
To flat surface, then in place with hoist engine lifting；Three) the new central tube of material transport is laminated structure, and full-size monolithic is 1.5 meters
× 2.1 meters, industrial elevator transhipment can be used, 8 layers of elevator, 43.9 meters of exits to are transported all material by industrial elevator, then lead to
It crosses push trolley to be transported to by separator, is then hung at 8.5 layers using bottle gouard moved by hands, is finally transported in cylinder, it is entire to transport
Defeated process is completed in the case where not removing railing as far as possible；Four) former central tube removes 4.1 and first opens clean-out cover at the top of separator,
Do support suspension centre with I-steel in hole location, for the lifting of 5 tons of cucurbits, then opened again at the top of separator one it is vertical in
The center hole for hoist of heart cylinder, convenient for the vertical missing of correction center cylinder, tapping should I-steel from furnace over top nearby
The carrying being easy to lift, after in separator outlet enter to open 1.2 meters wide 1.8 meters high of transport of materials channel above hole, and separating
Device exports the periphery below hole and builds an operating platform, convenient for the disengaging of entire construction material；4.2 old central tubes are because become
Shape has had no value for use, and cuts respectively by 1.2 × 1.5 meters of size since central tube bottom, in old central tube when cutting
On hold funeral rites annular distance, facilitate lifting equipment to hang, the old material cut down is slowly hung exit by hoist crane and removed outside burner hearth,
It is transported to specified storage point again, successively removes had been friends in the past central tube；Five) cone cylinder reparation and the installation of central tube support are to former cone cylinder
Lower deformation part is repaired, and pad in cone cylinder first must be removed polishing completely after removing old central tube, with to cone cylinder
The filler material of periphery is removed, and is corrected simultaneously to former cone cylinder, setting-out aperture, then carry out the connecting welding of support, and support is adopted
With inside and outside sealing welding, guarantee that the support strength of support, horizontal distance are uniformly distributed；Six) new central tube splicing composition installation 6.1
For the verticality and circularity for ensuring central tube, when assembling, first will most the preceding paragraph be assembled at separator outlet flue, be considered
If first segment central tube can not reach outside the lower mouth of cone cylinder, second segment to after being placed into cone cylinder first segment central tube
Central tube can not carry out outer ring weld welding when assembling, therefore most upper two sections of central tubes are lifted after assembling at flue；6.2
The first deashing at two separator outlet air flue horizontal sections (4.9 meters of platform size, 5.3 meters wide, 6.3 meters long, 3.7 meters of height) is looked for
It is flat, and the double-rail track of a long 6m is made of #10 channel steel respectively, the track of installation is hanging in separator end stretching flue
800mm simultaneously carries out support；Installation in orbit places one 6 wheel mobile platform and keeps the level of platform；6.3 tracks and movement
After platform completes, by the most upper two section cylinder of new central tube assembly welding on a mobile platform, it is ensured that between upper and lower seam
Peripheral welds can be fully welded, while it is the connection of the double-deck large flange of central tube horizontal ends most suitable for reading is upper and welded；6.4
After most upper two sections of cylinders are completed, two suspension centres are done at the top of flue and do a pulling force point in the flue other end, at top
Mobile platform is drawn forward cylinder by two suspension centre suspension chain blocks, and one chain block of rear suspension advances in mobile platform
While slowly unclamp, guarantee the movement of mobile platform safety and steady, mobile platform be moved to after most endpoint with interim suspension centre
Chain block central tube is sling, remove platform, cut off the track extended to outside platform, be suspended on central tube center suspension centre
Chain block draws forward cylinder, while the cucurbit of interim suspension centre cooperates it slowly to loosen, until cylinder is hung to and center
Cylinder center suspension centre is vertical, then cylinder is placed on the support of lower section cone cylinder；6.5 in cylinder ring after every section of central tube assembling and spot welding
To looking for 6 points to carry out verification cylinder roundness, the verticality of suspension horizontal ruler measurement cylinder, occurring if any deformation will be using flower
The method of basket pull rod correction corrects, guarantee not lose circle, it is unbiased in the case where cylinder welded, and measure 6 at any time
The distance and observation horizontal ruler of a point, it is ensured that circularity, verticality after the completion of the welding of cylinder assembly comply with standard；6.6 continue to connect
The cylinder board for connecing lower end completes cylinder assembling, and the method for assembling is the assembling of block-by-block docking from top to bottom, still according to upper when assembling
The connection method for holding cylinder, the butt weld up and down that is staggered are attached, and are gradually completing all 4 sections assemblings, assembling while institute
Having the inside and outside pivot flange of weld seam will carry out together, and the welding effect of weld seam, cylinder are also ensured while guaranteeing cylinder circularity
Body welding position is polished, and weld bond is smooth, no rusty stain, and central tube new so is just installed.
As improvement of the present invention, the mobile platform 3 to the relative mounting location of wheel be from left to right 800mm,
1900mm, 4000mm guarantee that the center of cylinder is placed on the second half section of mobile platform.
Add as a further refinement of the present invention, installing 4 channel steel shapes additional after 4 sections of cylinders are completed, outside cylinder
Strong circle, stiffening ring installation site are supreme from lower port: 230mm, 930mm, 1800mm, 2600mm.
As a further refinement of the present invention, being filled at gap between cone cylinder and new central tube resistance to 1600 DEG C or more high
Absorption of the tapetum fibrosum of temperature as swell increment, while stopping the anti-channeling of flue gas, and be welded with sealing ring flange in new central tube periphery,
Reach better barriering effect.
As a further refinement of the present invention, being welded with a circle plane face flange on the inside of cone cylinder.
The beneficial effects of the present invention are: whole circle cylinder is cut into six equal aliquots, it is small in size to efficiently use industrial electro
Ladder transhipment, without setting up high tower crane, the small no security risk of risk factor is easier to be welded and fixed, and intensity is high after welding, service life
Long, use cost is low, and without removing railing when lifting, easy to operate simple and direct, installation effectiveness is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an embodiment of the present invention hoisting process.
Specific embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
A kind of power plant boiler central cylinder of separator remodeling method prepares before including the following steps one) construction in central tube
It is laid on track route and builds the landing stage of scaffold, to facilitate chain block to the hook that connects of disassemblerassembler, in addition in central tube
Portion sets up full hall frame, height distance central tube bottom 600mm, and as the dismounting of old central tube continuation is up set up, full hall frame
Load capacity meet 70kg/ ㎡；Two) according to field condition, adaptation to local conditions is hung to flat surface with crane to crane tool arrangement,
Again in place with hoist engine lifting；Three) the new central tube of material transport is laminated structure, and full-size monolithic is 1.5 meters × 2.1 meters,
Industrial elevator transhipment can be used, 8 layers of elevator, 43.9 meters of exits to are transported all material by industrial elevator, then pass through push trolley
It is transported to by separator, is then hung at 8.5 layers, is finally transported in cylinder, entire transportational process exists using bottle gouard moved by hands
It is completed in the case where not removing railing as far as possible；Four) former central tube removes 4.1 and first opens clean-out cover at the top of separator, in hole position
It sets and does support suspension centre with I-steel, for the lifting of 5 tons of cucurbits, then opened again at the top of separator in a vertical centre cylinder
Heart hole for hoist, convenient for the vertical missing of correction center cylinder, tapping should the I-steel from furnace over top be nearby easy to lift
Carrying, after in separator outlet enter to open 1.2 meters wide 1.8 meters high of transport of materials channel above hole, and enter in separator outlet
An operating platform is built in periphery below hole, convenient for the disengaging of entire construction material；4.2 old central tubes because deformation without making
It with value, is cut respectively by 1.2 × 1.5 meters of size since central tube bottom, when cutting holds funeral rites ring on old central tube
Hole facilitates lifting equipment to hang, and the old material cut down is slowly hung exit by hoist crane and removed outside burner hearth, then is transported to
Specified storage point successively removes had been friends in the past central tube；Five) cone cylinder reparation and the installation of central tube support are to former cone cylinder lower deformation
Part is repaired, and pad in cone cylinder first must be removed polishing completely after removing old central tube, filled out with to cone cylinder periphery
Charge is removed, and is corrected simultaneously to former cone cylinder, setting-out aperture, then carry out the connecting welding of support, and support is using inside and outside close
Soldering and sealing connects, and guarantees that the support strength of support, horizontal distance are uniformly distributed；Six) new central tube splicing composition installation 6.1 is in ensuring
The verticality and circularity of heart cylinder, when assembling, first will most the preceding paragraph assemble at separator outlet flue, it is contemplated that if will
After first segment central tube is placed into cone cylinder, first segment central tube can not be reached outside the lower mouth of cone cylinder, second segment central tube group
Outer ring weld welding can not be carried out when dress, therefore most upper two sections of central tubes are lifted after assembling at flue；6.2 first at two
It is deashing at separator outlet air flue horizontal section (4.9 meters of platform size, 5.3 meters wide, 6.3 meters long, 3.7 meters of height), levelling, and respectively
The double-rail track of a long 6m is made of #10 channel steel, the track of installation stretches out the hanging 800mm of flue at separator end and carries out branch
Support；Installation in orbit places one 6 wheel mobile platform and keeps the level of platform；6.3 tracks and mobile platform complete
Afterwards, by the most upper two section cylinder of new central tube assembly welding on a mobile platform, it is ensured that the peripheral welds energy between upper and lower seam
It is enough fully welded, while the connection of the double-deck large flange of central tube horizontal ends most suitable for reading above and being welded；6.4 most upper two sections of cylinders
After being completed, two suspension centres are done at the top of flue and do a pulling force point in the flue other end, in the suspension centre suspension of two, top
Mobile platform is drawn forward cylinder by chain block, and one chain block of rear suspension is slowly loose while mobile platform advances
It opens, as shown in Figure 1, guaranteeing the movement of mobile platform safety and steady, mobile platform is moved to after most endpoint with interim suspension centre
Chain block slings central tube, removes platform, cuts off the track extended to outside platform, is suspended on the hand of central tube center suspension centre
Cucurbit is drawn to draw cylinder forward, while the cucurbit of interim suspension centre cooperates it slowly to loosen, until cylinder is hung to and central tube
Center suspension centre is vertical, then cylinder is placed on the support of lower section cone cylinder；In cylinder circumferential direction after 6.5 every section of central tube assembling and spot weldings
6 points are looked for carry out verification cylinder roundness, the verticality of suspension horizontal ruler measurement cylinder will use the gaily decorated basket if any deformation appearance
The method of pull rod correction corrects, guarantee not lose circle, it is unbiased in the case where cylinder welded, and measure 6 at any time
The distance and observation horizontal ruler of point, it is ensured that circularity, verticality after the completion of the welding of cylinder assembly comply with standard；6.6 continue to connect
The cylinder board of lower end completes cylinder assembling, and the method for assembling is the assembling of block-by-block docking from top to bottom, still according to upper end when assembling
The connection method of cylinder, the butt weld up and down that is staggered are attached, and are gradually completing all 4 sections assemblings, and assembling while is all
The inside and outside pivot flange of weld seam will carry out together, and the welding effect of weld seam, cylinder are also ensured while guaranteeing cylinder circularity
Welding position is polished, and weld bond is smooth, no rusty stain, and central tube new so is just installed.
In the present invention, the mobile platform 3 to the relative mounting location of wheel be from left to right 800mm, 1900mm,
4000mm guarantees that the center of cylinder is placed on the second half section of mobile platform.
In the present invention, after 4 sections of cylinders are completed, 4 channel steel shape stiffening rings, stiffening ring installation position are installed outside cylinder additional
It sets supreme from lower port: 230mm, 930mm, 1800mm, 2600mm.
In the present invention, the tapetum fibrosum of resistance to 1600 DEG C or more high temperature is filled as swollen at gap between cone cylinder and new central tube
The absorption of bulk, while stopping the anti-channeling of flue gas, and be welded with sealing ring flange in new central tube periphery, reach preferably barrier effect
Fruit.
In the present invention, it is welded with a circle plane face flange on the inside of cone cylinder, further enhances the intensity of central tube, guarantees in heat expansion
It is indeformable unaffected afterwards.
It is small in size to efficiently use industrial elevator transhipment by the way that whole circle cylinder is cut into six equal aliquots, without setting up height
Tower crane, the small no security risk of risk factor, is easier to be welded and fixed, and intensity is high after welding, and service life is long, and use cost is low, hangs
Easy to operate simple and direct without removing railing when dress, installation effectiveness is high.
Above-described embodiment and schema and non-limiting product form and style of the invention, any technical field it is common
The appropriate changes or modifications that technical staff does it all should be regarded as not departing from patent category of the invention.
Claims (5)
1. a kind of power plant boiler central cylinder of separator remodeling method, it is characterised in that: remodeling method includes the following steps one) to apply
Prepare to be laid on central tube track route before work to build the landing stage of scaffold, to facilitate chain block to connect disassemblerassembler
Hook, in addition sets up full hall frame inside central tube, height distance central tube bottom 600mm, and with the dismounting of old central tube after
Continuous up to set up, the load capacity of full hall frame meets 70kg/ ㎡；Two) crane tool is arranged according to field condition, adaptation to local conditions,
It is hung to flat surface with crane, then in place with hoist engine lifting；Three) the new central tube of material transport is laminated structure, full-size list
Piece is 1.5 meters × 2.1 meters, and industrial elevator transhipment can be used, transport all material to 8 layers of elevator 43.9 meters by industrial elevator and go out
Mouthful place, then be transported to by separator by push trolley, then bottle gouard moved by hands is used to be hung at 8.5 layers, is finally transported to cylinder
Interior, entire transportational process is completed in the case where not removing railing as far as possible；Four) former central tube removes 4.1 and first opens separator top
Portion's clean-out cover does support suspension centre with I-steel in hole location, for the lifting of 5 tons of cucurbits, then opens again at the top of separator
The center hole for hoist of one vertical centre cylinder, convenient for the vertical missing of correction center cylinder, tapping should be from the work of furnace over top
The carrying that word steel is nearby easy to lift, after in separator outlet to enter to open 1.2 meters wide 1.8 meters of high transport of materials above hole logical
Road, and enter the periphery below hole in separator outlet and build an operating platform, convenient for the disengaging of entire construction material；4.2 old
Central tube is cut by 1.2 × 1.5 meters of size since central tube bottom respectively because deformation has had no value for use, and is cut
When hold funeral rites on old central tube annular distance, facilitate lifting equipment to hang, the old material cut down is slowly hung outlet by hoist crane
Place removes outside burner hearth, then is transported to specified storage point, successively removes had been friends in the past central tube；Five) cone cylinder reparation and central tube branch
Former cone cylinder lower deformation part is repaired in seat installation, pad in cone cylinder first must be removed polishing after removing old central tube
Completely, it is removed, and former cone cylinder is corrected simultaneously, setting-out aperture, then carry out the company of support with the filler material to cone cylinder periphery
Welding is connect, support uses inside and outside sealing welding, guarantees that the support strength of support, horizontal distance are uniformly distributed；Six) new central tube is spelled
Connecing composition installation 6.1 is the verticality and circularity for ensuring central tube, and when assembling first will most the preceding paragraph at separator outlet flue
It is assembled, it is contemplated that if after first segment central tube is placed into cone cylinder, first segment central tube can not reach cone cylinder
Outside lower mouth, second segment central tube can not carry out outer ring weld welding when assembling, therefore most upper two sections of central tubes are assembled at flue
After lifted；6.2 first deashings, levelling at two separator outlet air flue horizontal sections, and one is made with #10 channel steel respectively
The track of the double-rail track of long 6m, installation stretches out the hanging 800mm of flue at separator end and carries out support；Installation is put in orbit
It sets one 6 wheel mobile platform and keeps the level of platform；After 6.3 tracks and mobile platform complete, most by new central tube
Upper two sections cylinder assembly welding on a mobile platform, it is ensured that the peripheral welds between upper and lower seam can be fully welded, while will in
The double-deck large flange connection of heart cylinder horizontal ends most suitable for reading is upper and is welded；After 6.4 most upper two sections of cylinders are completed, in flue
Top does two suspension centres and does a pulling force point in the flue other end, and two, top, suspension centre suspension chain block will move cylinder
Moving platform is drawn forward, and one chain block of rear suspension slowly unclamps while mobile platform advances, and guarantees mobile platform peace
It is complete smoothly mobile, mobile platform is moved to after most endpoint and is sling central tube with the chain block of interim suspension centre, is removed flat
Platform cuts off the track extended to outside platform, and the chain block for being suspended on central tube center suspension centre draws forward cylinder, while interim
The cucurbit of suspension centre cooperates it slowly to loosen, vertical with central tube center suspension centre up to being hung to cylinder, then cylinder is placed into
On the support of lower section cone cylinder；It looks for 6 points to carry out verification cylinder roundness in cylinder circumferential direction after 6.5 every section of central tube assembling and spot weldings, hangs
The verticality for hanging horizontal ruler measurement cylinder is occurred correcting the method corrected using gaily decorated basket pull rod, protected if any deformation
Card do not lose circle, it is unbiased in the case where cylinder is welded, and measure the distance and observation horizontal ruler of 6 points at any time, it is ensured that
Circularity, verticality after the completion of cylinder assembly welding comply with standard；6.6 cylinder boards for continuing to connect lower end complete cylinder assembling,
The method of assembling is the assembling of block-by-block docking from top to bottom, and still according to the connection method of upper end cylinder when assembling, it is right up and down to be staggered
Welding seam is attached, and is gradually completing all 4 sections assemblings, assembling while all weld seams inside and outside pivot flange will together into
Row, also ensures the welding effect of weld seam while guaranteeing cylinder circularity, and barrel soldering position is polished, and weld bond is smooth,
Without rusty stain, central tube new so is just installed.
2. power plant boiler central cylinder of separator remodeling method according to claim 1, it is characterised in that: the movement is flat
Platform 3 is 800mm, 1900mm, 4000mm to the relative mounting location of wheel from left to right, guarantees that the center of cylinder is placed on movement
The second half section of platform.
3. power plant boiler central cylinder of separator remodeling method according to claim 1, it is characterised in that: in 4 sections of cylinders
After being completed, 4 channel steel shape stiffening rings are installed outside cylinder additional, stiffening ring installation site is supreme from lower port: 230mm,
930mm、1800mm、2600mm。
4. power plant boiler central cylinder of separator remodeling method according to claim 1, it is characterised in that: in cone cylinder and newly
Absorption of the tapetum fibrosum as swell increment of resistance to 1600 DEG C or more high temperature is filled between central tube at gap, while stopping the anti-of flue gas
It alters, and is welded with sealing ring flange in new central tube periphery, reach better barriering effect.
5. power plant boiler central cylinder of separator remodeling method according to claim 1, it is characterised in that: on the inside of cone cylinder
It is welded with a circle plane face flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710715789.2A CN107490004B (en) | 2017-08-20 | 2017-08-20 | Power plant boiler central cylinder of separator remodeling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710715789.2A CN107490004B (en) | 2017-08-20 | 2017-08-20 | Power plant boiler central cylinder of separator remodeling method |
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| Publication Number | Publication Date |
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| CN107490004A CN107490004A (en) | 2017-12-19 |
| CN107490004B true CN107490004B (en) | 2019-10-11 |
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| CN201710715789.2A Expired - Fee Related CN107490004B (en) | 2017-08-20 | 2017-08-20 | Power plant boiler central cylinder of separator remodeling method |
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| CN1863977A (en) * | 2003-10-06 | 2006-11-15 | 安德斯·比约克隆德 | Apparatus for faciliating new construction and the internal inspection and repair of large vessels, such as recovery boilers and tanks |
| CN102864936A (en) * | 2012-10-10 | 2013-01-09 | 江苏南通六建建设集团有限公司 | Combination lifting construction method for large-scale high hollow building roof of steel structure |
| CN103273281A (en) * | 2013-06-20 | 2013-09-04 | 中航虹波风电设备有限公司 | Construction technology for thin-wall barrel bodies |
| CN104016089A (en) * | 2014-06-25 | 2014-09-03 | 中国五冶集团有限公司 | Slipping installation method of big flue of sintering machine and rail installation mechanism thereof |
| CN106395628A (en) * | 2015-11-30 | 2017-02-15 | 中国化学工程第三建设有限公司 | Hoisting and overhead-assembling method for sections of heavy tower equipment |
| CN106567548A (en) * | 2016-11-07 | 2017-04-19 | 山东电力建设第三工程公司 | Segmented mounting method for square raw coal hopper |
-
2017
- 2017-08-20 CN CN201710715789.2A patent/CN107490004B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863977A (en) * | 2003-10-06 | 2006-11-15 | 安德斯·比约克隆德 | Apparatus for faciliating new construction and the internal inspection and repair of large vessels, such as recovery boilers and tanks |
| CN102864936A (en) * | 2012-10-10 | 2013-01-09 | 江苏南通六建建设集团有限公司 | Combination lifting construction method for large-scale high hollow building roof of steel structure |
| CN103273281A (en) * | 2013-06-20 | 2013-09-04 | 中航虹波风电设备有限公司 | Construction technology for thin-wall barrel bodies |
| CN104016089A (en) * | 2014-06-25 | 2014-09-03 | 中国五冶集团有限公司 | Slipping installation method of big flue of sintering machine and rail installation mechanism thereof |
| CN106395628A (en) * | 2015-11-30 | 2017-02-15 | 中国化学工程第三建设有限公司 | Hoisting and overhead-assembling method for sections of heavy tower equipment |
| CN106567548A (en) * | 2016-11-07 | 2017-04-19 | 山东电力建设第三工程公司 | Segmented mounting method for square raw coal hopper |
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| Publication number | Publication date |
|---|---|
| CN107490004A (en) | 2017-12-19 |
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