CN109317847A - A kind of rotary kiln kiln body assembling alignment device and construction method - Google Patents
A kind of rotary kiln kiln body assembling alignment device and construction method Download PDFInfo
- Publication number
- CN109317847A CN109317847A CN201811241690.4A CN201811241690A CN109317847A CN 109317847 A CN109317847 A CN 109317847A CN 201811241690 A CN201811241690 A CN 201811241690A CN 109317847 A CN109317847 A CN 109317847A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- shell ring
- nut
- rotary kiln
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses a kind of rotary kiln kiln body assembling alignment device and construction methods, belong to Rotary kiln installation technical field.The present invention includes cylinder, the cylinder is made of seven shell rings, the inner surface of shell ring is separately installed with longitudinal adjustment apparatus and radial adjustment device, longitudinal adjustment apparatus is made of hold-down support, inner screw nut standing screw and outboard nut, and the radial adjustment device is made of L-type fixed block, radiai adjustment nut and radiai adjustment bolt.Cylinder is broken the whole up into parts and carries out installation on ground by the present invention, it is lifted in the air after being spliced into section, effectively improve working efficiency, reducing construction cost can be adjusted when the weld spacing of such as adjacent shell ring is larger or smaller by longitudinal adjustment apparatus, recess can also be jacked up using radiai adjustment bolt, after the completion of ensuring construction, cylinder has globality, no open defect.
Description
Technical field
The present invention relates to Rotary kiln installation technical fields, look for more specifically to a kind of rotary kiln kiln body assembling
Equipment and construction method.
Background technique
Rotary kiln is a kind of relatively conventional cement building material equipment, has important application in fields such as metallurgy, cement, chemical industry
Value, since rotary kiln kiln body is relatively large in diameter and heavier-weight, though can be assembled using crawler crane, the spacing between two section cylinders is very
Difficult accurate control, and be self-possessed due to kiln body and collided in transit, kiln body circularity is deviated.But since rotary kiln is project core
Heart equipment, it is high to rotary kiln entirety straightness and assembled welding requirements, therefore need between two section kiln bodies lifting group to rear to whole
A contact surface distance is accurately adjusted, it is ensured that subsequent welding quality is met the requirements.
Summary of the invention
1. technical problems to be solved by the inivention
In view of the defects existing in the prior art with deficiency, the present invention provides a kind of rotary kiln kiln body assembling centering dresses
It sets and construction method, the device effectively solves fixation problem of the two section rotary kiln kiln bodies after docking, and two section kiln body contact surfaces
Spacing accuracy it is adjustable, meet welding requirements, after assembled, for rotary kiln kiln body without obvious open defect, globality is more excellent.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of rotary kiln kiln body assembling alignment device of the invention, including cylinder, the cylinder is by seven shell rings
Composition, the inner surface of shell ring are separately installed with longitudinal adjustment apparatus and radial adjustment device, longitudinal adjustment apparatus by hold-down support,
Inner screw nut standing screw and outboard nut composition, hold-down support are arranged at the inner surface interval of shell ring, the side of hold-down support
It is fitted with standing screw, the outer ring of standing screw is also respectively installed with inner screw nut and outboard nut, and standing screw passes through inside
Nut, outboard nut and hold-down support assemble；
The radial adjustment device is made of L-type fixed block, radiai adjustment nut and radiai adjustment bolt, and L-type is fixed
Block is fixedly mounted on the inner surface of shell ring, and one end of radiai adjustment bolt through L-type fixed block and is socketed with radiai adjustment nut,
The other end of radiai adjustment bolt extends to the inner surface of cylinder.
Further, the hold-down support is welded to each other by four blocks of steel plates as " mouth " font.
Further, the radial adjustment device is arranged at the position while welding between adjacent shell ring.
Further, the cylinder is divided into an equal portions along the center of circle, and the inner surface of each equal portions is mounted on longitudinal direction
Regulating device.
A kind of rotary kiln kiln body assembling construction method, the steps include:
Step 1: being divided into seven shell rings for cylinder, and be transported to on-site assembly, and cylinder carries out installation on ground, wherein 1,2 group of cylinder
Section is spliced into A sections, and 3,4,5 groups of shell rings are spliced into B sections, and 6,7 groups of shell rings are spliced into C sections, then are installed in the air；
Step 2: by splicing levelling of the land, compacting, hardening, and accounting ensures that the deflection of Barrel hoisting rear cylinder body is less than
1mm checks buttress absolute altitude as interim splicing platform using H profile steel production buttress, and ensures that buttress absolute altitude is consistent；
Step 3: using crawler belt and crane respectively by different sections of shell ring handling at buttress, adjacent shell ring is adjusted
Between port position；
Step 4: by shell ring, circumferentially face is divided into 16 equal portions, and white line is drawn at each equal portions as label, is existed respectively
Mark installs longitudinal adjustment apparatus；
Step 5: checking nozzle recess situation along weld seam circumference, installs radial adjustment device in recess；
Step 6: checking the unfitness of butt joint of weld spacing and adjacent shell ring with straight steel ruler, and using longitudinal adjustment apparatus and
Radial adjustment device is adjusted, and after examining qualified report prison to pass through, carries out the welding of adjacent shell ring；
Step 7: be sequentially completed every group of shell ring to just and welding, i.e. the integral assembling work of completion cylinder.
Further, the long 70m of the cylinder, diameter 4.8m, weight 383.2t, are divided into 7 sections for cylinder and are transported to on-site assembly,
It is ground spliced at being lifted in the air after 3 sections.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, have the following beneficial effects:
Cylinder is broken the whole up into parts and carries out installation on ground by the present invention, is lifted in the air after being spliced into section, effectively improves work
Make efficiency, the hold-down support of longitudinal adjustment apparatus can be existed when the weld spacing of such as adjacent shell ring is larger by reducing construction cost
Firm welding at the shell ring at the end A of side unclamps the inner screw nut at the shell ring at the end B, tightens the outside spiral shell at the shell ring at the end B
Mother, the strength by tightening outboard nut are by force adjusted cylinder；It, can be by longitudinal adjustment apparatus if weld spacing is smaller
Hold-down support loosens the outboard nut at the shell ring at the end B, at the shell ring for turning the end B in the shell ring firm welding at the end A of side
Inner screw nut, drive shell ring expand outwardly movement, achieve the purpose that adjust spacing, successively using longitudinal adjustment apparatus can will
Weld seam at position of halving is adjusted, and jacks up recess also with radiai adjustment bolt, achievees the purpose that adjustment recess,
After the completion of ensuring construction, cylinder has globality, no open defect.
Detailed description of the invention
Fig. 1 is shell ring plan view of the invention；
Fig. 2 is cylinder subsection efect figure of the invention；
Fig. 3 is to divide equally schematic diagram at cylinder docking of the invention；
Fig. 4 is longitudinal adjustment apparatus structure chart of the invention；
Fig. 5 is radial adjustment device structure chart of the invention.
In figure: 1, cylinder；2, shell ring；3, longitudinal adjustment apparatus；31, hold-down support；32, inner screw nut；33, fixed spiral shell
Bar；34, outboard nut；4, radial adjustment device；41, L-type fixed block；42, radiai adjustment nut；43, radiai adjustment bolt.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples:
Embodiment 1
It can be seen that a kind of rotary kiln kiln body assembling alignment device of the present embodiment, including cylinder 1, cylinder from Fig. 1-5
Body 1 is made of seven shell rings 2, and the inner surface of shell ring 2 is separately installed with longitudinal adjustment apparatus 3 and radial adjustment device 4, longitudinal to adjust
Regulating device 3 is made of hold-down support 31, inner screw nut 32, standing screw 33 and outboard nut 34, and hold-down support 31 is in shell ring 2
The setting of inner surface interval, hold-down support 31 are welded to each other by four blocks of steel plates as " mouth " font, and the side of hold-down support 31 is fitted with
Standing screw 33, the outer ring of standing screw 33 are also respectively installed with inner screw nut 32 and outboard nut 34, and standing screw 33 passes through
Inner screw nut 32, outboard nut 34 and hold-down support 31 assemble, and unclamp inner screw nut 32, turn outboard nut 34, i.e., adjustable
The installation site of standing screw 33 and hold-down support 31, vice versa, by the peace for changing standing screw 33 and hold-down support 31
Holding position, that is, can be changed the spacing between adjacent shell ring 2, and cylinder 1 is divided into 16 equal portions along the center of circle, each equal portions it is interior
Surface is mounted on longitudinal adjustment apparatus 3, and multiple groups longitudinal adjustment apparatus 3 is adjusted in synchronism, it is ensured that adjacent shell ring 2 can be sufficiently right
Just, accuracy is improved.
Radial adjustment device 4 is made of L-type fixed block 41, radiai adjustment nut 42 and radiai adjustment bolt 43, and L-type is fixed
Block 41 is fixedly mounted on the inner surface of shell ring 2, and one end of radiai adjustment bolt 43 through L-type fixed block 41 and is socketed with radial tune
Nut 42 is saved, the other end of radiai adjustment bolt 43 extends to the inner surface of cylinder 1, and radial adjustment device 4 is arranged in adjacent
At position while welding between shell ring 2, by turning radiai adjustment bolt 43, i.e., the stretching of adjustable radiai adjustment bolt 43 is long
Degree, to jack up 2 inner surface recess of shell ring, makes its recovery.
A kind of rotary kiln kiln body assembling construction method, the steps include:
Step 1: cylinder 1 being divided for seven shell rings 2, and is transported to on-site assembly, and cylinder 1 carries out installation on ground, wherein 1,2
Group shell ring 2 is spliced into A sections, and 3,4,5 groups of shell rings 2 are spliced into B sections, and 6,7 groups of shell rings 2 are spliced into C sections, then are installed in the air, cylinder
Body 1 is 70m long, diameter 4.8m, weight 383.2t, and cylinder 1 is divided and is transported to on-site assembly for 7 sections, ground spliced aerial at carrying out after 3 sections
Lifting effectively improves efficiency, reduces construction cost；
Step 2: by splicing levelling of the land, compacting, hardening, and accounting ensure that the deflection of the lifting rear cylinder body 1 of cylinder 1 is small
In 1mm, buttress absolute altitude is checked as interim splicing platform using H profile steel production buttress, and ensure that buttress absolute altitude is consistent；
Step 3: using crawler belt and crane respectively by different sections of 2 handling of shell ring at buttress, adjacent shell ring is adjusted
Port position between 2；
Step 4: by shell ring 2, circumferentially face is divided into 16 equal portions, and white line is drawn at each equal portions as label, respectively
Installing longitudinal adjustment apparatus 3 in mark can be by the hold-down support 31 of longitudinal adjustment apparatus 3 one when as larger such as weld spacing
Firm welding at the shell ring 2 at the end A of side unclamps the inner screw nut 32 at the shell ring 2 at the end B, tightens the outside at the shell ring 2 at the end B
Nut 34, the strength by tightening outboard nut 34 are by force adjusted cylinder 1；It, can be by longitudinal tune if weld spacing is smaller
The hold-down support 31 of regulating device 3 loosens the outboard nut 34 at the shell ring 2 at the end B in 2 firm welding of shell ring at the end A of side, twists
Inner screw nut 32 at the shell ring 2 at the dynamic end B, drives shell ring 2 to expand outwardly movement, achievees the purpose that adjust spacing, successively utilize
Weld seam at 16 position of halving can be adjusted by longitudinal adjustment apparatus 3；
Step 5: checking nozzle recess situation along weld seam circumference, radial adjustment device 4 is installed in recess, such as the end A
2 part of shell ring is recessed, and can select installation radial adjustment device 4 in the shell ring 2 at the end B, the L-type fixed block 41 in device is welded
It connects at the shell ring 2 at the end B, turns the radiai adjustment bolt 43 in device, recess is jacked up using radiai adjustment bolt 43, is reached
To the purpose of adjustment recess；
Step 6: the unfitness of butt joint of weld spacing and adjacent shell ring 2 is checked with straight steel ruler, and utilizes longitudinal adjustment apparatus 3
It is adjusted with radial adjustment device 4, after examining qualified report prison to pass through, carries out the welding of adjacent shell ring 2；
Step 7: be sequentially completed every group of shell ring 2 to just and welding, i.e. the integral assembling work of completion cylinder 1.
Cylinder 1 is broken the whole up into parts and carries out installation on ground by the present invention, is lifted, is effectively improved in the air after being spliced into 3 sections
Working efficiency reduces construction cost, can be by the fixed branch of longitudinal adjustment apparatus 3 when the weld spacing of such as adjacent shell ring 2 is larger
The firm welding at the shell ring 2 at the end A of side of seat 31, unclamps the inner screw nut 32 at the shell ring 2 at the end B, tightens the shell ring 2 at the end B
The outboard nut 34 at place, the strength by tightening outboard nut 34 are by force adjusted cylinder 1；It, can if weld spacing is smaller
2 firm welding of shell ring by the hold-down support 31 of longitudinal adjustment apparatus 3 at the end A of side loosens the outside at the shell ring 2 at the end B
Nut 34 turns the inner screw nut 32 at the shell ring 2 at the end B, and shell ring 2 is driven to expand outwardly movement, achievees the purpose that adjust spacing,
The weld seam at 16 position of halving can be successively adjusted using longitudinal adjustment apparatus 3, also with radiai adjustment bolt
43 jack up recess, achieve the purpose that adjustment recess, it is ensured that after the completion of construction, cylinder 1 has globality, no open defect.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (6)
1. a kind of rotary kiln kiln body assembling alignment device, including cylinder (1), it is characterised in that: the cylinder (1) is by seven
A shell ring (2) composition, the inner surface of shell ring (2) is separately installed with longitudinal adjustment apparatus (3) and radial adjustment device (4), longitudinal
Regulating device (3) is made of hold-down support (31), inner screw nut (32), standing screw (33) and outboard nut (34), fixed branch
Seat (31) is arranged at the inner surface interval of shell ring (2), and the side of hold-down support (31) is fitted with standing screw (33), standing screw
(33) outer ring is also respectively installed with inner screw nut (32) and outboard nut (34), and standing screw (33) passes through inner screw nut
(32), outboard nut (34) and hold-down support (31) are assembled；
The radial adjustment device (4) is by L-type fixed block (41), radiai adjustment nut (42) and radiai adjustment bolt (43) group
At L-type fixed block (41) is fixedly mounted on the inner surface of shell ring (2), and L-type fixed block is run through in one end of radiai adjustment bolt (43)
(41) it and is socketed with radiai adjustment nut (42), the other end of radiai adjustment bolt (43) extends to the inner surface of cylinder (1).
2. a kind of rotary kiln kiln body assembling alignment device according to claim 1, it is characterised in that: the fixation
Support (31) is welded to each other by four blocks of steel plates as " mouth " font.
3. a kind of rotary kiln kiln body assembling alignment device according to claim 1, it is characterised in that: the radial direction
Regulating device (4) is arranged at the position while welding between adjacent shell ring (2).
4. a kind of rotary kiln kiln body assembling alignment device according to claim 1, it is characterised in that: the cylinder
(1) 16 equal portions are divided into along the center of circle, the inner surface of each equal portions is mounted on longitudinal adjustment apparatus (3).
5. a kind of rotary kiln kiln body assembling construction method, it is characterised in that: the steps include:
Step 1: being divided into seven shell rings (2) for cylinder (1), and be transported to on-site assembly, and cylinder (1) carries out installation on ground, wherein 1,
2 groups of shell rings (2) are spliced into A sections, and 3,4,5 groups of shell rings (2) are spliced into B sections, and 6,7 groups of shell rings (2) are spliced into C sections, then carry out aerial
Installation；
Step 2: by splicing levelling of the land, compacting, hardening, and accounting ensure that the deflection of cylinder (1) lifting rear cylinder body (1) is small
In 1mm, buttress absolute altitude is checked as interim splicing platform using H profile steel production buttress, and ensure that buttress absolute altitude is consistent；
Step 3: different sections shell ring (2) handling at buttress, is adjusted into adjacent shell ring respectively using crawler belt and crane
(2) port position between；
Step 4: by shell ring (2), circumferentially face is divided into 16 equal portions, and white line is drawn at each equal portions as label, is existed respectively
Mark installs longitudinal adjustment apparatus (3)；
Step 5: checking nozzle recess situation along weld seam circumference, installs radial adjustment device (4) in recess；
Step 6: the unfitness of butt joint of weld spacing and adjacent shell ring (2) is checked with straight steel ruler, and utilizes longitudinal adjustment apparatus (3)
It is adjusted with radial adjustment device (4), after examining qualified report prison to pass through, carries out the welding of adjacent shell ring (2)；
Step 7: be sequentially completed every group of shell ring (2) to just and welding, i.e. the integral assembling work of completion cylinder (1).
6. a kind of rotary kiln kiln body assembling construction method according to claim 5, it is characterised in that: the cylinder
(1) cylinder (1) is divided into 7 sections and is transported to on-site assembly by long 70m, diameter 4.8m, weight 383.2t, ground spliced empty at carrying out after 3 sections
Middle lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241690.4A CN109317847A (en) | 2018-10-24 | 2018-10-24 | A kind of rotary kiln kiln body assembling alignment device and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241690.4A CN109317847A (en) | 2018-10-24 | 2018-10-24 | A kind of rotary kiln kiln body assembling alignment device and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109317847A true CN109317847A (en) | 2019-02-12 |
Family
ID=65263119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811241690.4A Pending CN109317847A (en) | 2018-10-24 | 2018-10-24 | A kind of rotary kiln kiln body assembling alignment device and construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109317847A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774792A (en) * | 2020-07-23 | 2020-10-16 | 安徽宏源铁塔有限公司 | Multi-spliced steel pipe joint-closing positioning device |
| CN113909796A (en) * | 2021-10-29 | 2022-01-11 | 上海市安装工程集团有限公司 | Adjustable girth welding auxiliary device and using method thereof |
| CN113909647A (en) * | 2021-09-17 | 2022-01-11 | 中信重工机械股份有限公司 | Rapid manufacturing method of large steel pipe pile of offshore wind power foundation |
| CN113977124A (en) * | 2021-10-26 | 2022-01-28 | 小跃科技(北京)有限公司 | Welding method for internal structure of external combustion kiln |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU432320A1 (en) * | 1972-05-03 | 1974-06-15 | П. В. Банников | ROLLER SUPPORT |
| CN102728985A (en) * | 2012-06-21 | 2012-10-17 | 中国十五冶金建设集团有限公司 | Butt welding method for thick-wall steel cylinder |
| CN202752794U (en) * | 2012-08-17 | 2013-02-27 | 中国十七冶集团有限公司 | Positioning device for barrel high-altitude lifting assembling |
| CN103486850A (en) * | 2013-10-08 | 2014-01-01 | 中国十九冶集团有限公司 | Butt joint method for giant rotary kiln barrels |
| CN104266482A (en) * | 2014-09-15 | 2015-01-07 | 中国十七冶集团有限公司 | Method for air abutment support of rotary kiln cylinder |
| CN105823329A (en) * | 2016-03-29 | 2016-08-03 | 中化二建集团有限公司 | Mounting construction method for rotary kiln |
-
2018
- 2018-10-24 CN CN201811241690.4A patent/CN109317847A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU432320A1 (en) * | 1972-05-03 | 1974-06-15 | П. В. Банников | ROLLER SUPPORT |
| CN102728985A (en) * | 2012-06-21 | 2012-10-17 | 中国十五冶金建设集团有限公司 | Butt welding method for thick-wall steel cylinder |
| CN202752794U (en) * | 2012-08-17 | 2013-02-27 | 中国十七冶集团有限公司 | Positioning device for barrel high-altitude lifting assembling |
| CN103486850A (en) * | 2013-10-08 | 2014-01-01 | 中国十九冶集团有限公司 | Butt joint method for giant rotary kiln barrels |
| CN104266482A (en) * | 2014-09-15 | 2015-01-07 | 中国十七冶集团有限公司 | Method for air abutment support of rotary kiln cylinder |
| CN105823329A (en) * | 2016-03-29 | 2016-08-03 | 中化二建集团有限公司 | Mounting construction method for rotary kiln |
Non-Patent Citations (1)
| Title |
|---|
| 陈春林CCL: "回转窑吊装方案", 《百度文库》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111774792A (en) * | 2020-07-23 | 2020-10-16 | 安徽宏源铁塔有限公司 | Multi-spliced steel pipe joint-closing positioning device |
| CN113909647A (en) * | 2021-09-17 | 2022-01-11 | 中信重工机械股份有限公司 | Rapid manufacturing method of large steel pipe pile of offshore wind power foundation |
| CN113909647B (en) * | 2021-09-17 | 2023-05-12 | 中信重工机械股份有限公司 | Rapid manufacturing method of large-scale steel pipe pile for offshore wind power foundation |
| CN113977124A (en) * | 2021-10-26 | 2022-01-28 | 小跃科技(北京)有限公司 | Welding method for internal structure of external combustion kiln |
| CN113909796A (en) * | 2021-10-29 | 2022-01-11 | 上海市安装工程集团有限公司 | Adjustable girth welding auxiliary device and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109317847A (en) | A kind of rotary kiln kiln body assembling alignment device and construction method | |
| CN103486850B (en) | Butt joint method for giant rotary kiln barrels | |
| CN107717346B (en) | Mast construction process for 1600T mast crane | |
| WO2019000750A1 (en) | Method for installing propeller shaft bracket | |
| CN113148058B (en) | Process for installing and positioning double rudder sleeve and tail casting in stage of sectional construction | |
| CN114248030B (en) | Control construction method for flatness of flange of tower barrel before welding | |
| CN108894580B (en) | Construction process of flare tower | |
| CN110877681A (en) | Large-span deck flatness control process | |
| CN207671554U (en) | A kind of large-scale steel pipe lifting integrated positioning regulating device | |
| CN114083242A (en) | Manufacturing method of large-diameter thin-wall suction cylinder body of offshore wind power | |
| CN105438400A (en) | Mounting method for large movable ramp | |
| CN107877093B (en) | Curved surface plate machining tool and machining method | |
| CN208686187U (en) | A kind of hydraulic lifting flipped device for variable diameter tower | |
| CN114522869A (en) | Manufacturing process of drum screen and using method thereof | |
| CN109366099A (en) | Abnormal-shaped screw body production method | |
| CN110480261A (en) | A kind of broken stone leveling ship spud leg building technology | |
| CN212670312U (en) | Adjusting device for construction of corrugated steel web PC (polycarbonate) composite beam bridge | |
| CN103406708B (en) | Lime kiln barrel assembling and welding method | |
| CN217897203U (en) | Metal cylinder assembling operation frame | |
| CN113814676A (en) | Manufacturing method of large-diameter tower equipment | |
| CN215393354U (en) | Pipe body sectional connecting device | |
| CN112570851B (en) | Pile leg rack installation method | |
| CN117900770A (en) | Manufacturing method and device for large-diameter split thin-wall vertical storage tank | |
| CN216226235U (en) | Large-size revolving body thin-wall part shape correcting tool | |
| CN216740772U (en) | Jig frame assembly for assembling steel plate wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190212 |