CN107143143A - Urea synthesizer construction method for hanging - Google Patents
Urea synthesizer construction method for hanging Download PDFInfo
- Publication number
- CN107143143A CN107143143A CN201710405108.2A CN201710405108A CN107143143A CN 107143143 A CN107143143 A CN 107143143A CN 201710405108 A CN201710405108 A CN 201710405108A CN 107143143 A CN107143143 A CN 107143143A
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- Prior art keywords
- urea synthesizer
- lifting
- urea
- concrete frame
- hydraulic
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000004202 carbamide Substances 0.000 title claims abstract description 73
- 238000010276 construction Methods 0.000 title claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 36
- 239000010959 steel Substances 0.000 claims abstract description 36
- 239000004567 concrete Substances 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 17
- 230000001360 synchronised effect Effects 0.000 claims abstract description 13
- 238000013519 translation Methods 0.000 claims abstract description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 11
- 238000013461 design Methods 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000003908 quality control method Methods 0.000 description 2
- 230000001568 sexual effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001669679 Eleotris Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a kind of urea synthesizer construction method for hanging, belong to large scale equipment handling technical field of construction, construction procedure is as follows：Specified location in urea synthesizer translational thrust concrete frame；Lifting platform is built in concrete frame top of the trellis, two hoisting beams are installed, two hydraulic rockshafts are arranged on above two girders；Two hydraulic rockshafts are connected with following urea synthesizer respectively by steel strand wires；Two hydraulic rockshaft Synchronous lifting work, overall lifting urea synthesizer；Meanwhile, 300t pedrail cranes do revolution action, and translation synthetic tower moves forward, lifts urea synthesizer to vertical state under the cooperation of pedrail crane；Continue Synchronous lifting urea synthesizer to installment work height, hydraulic rockshaft is stopped, and keeps the aerial statue of urea synthesizer；Unloaded after installing, remove hydraulic rockshaft.The problem of big lifting operating cost, complex operation step, inefficiency can preferably be solved.
Description
Technical field
The invention belongs to large scale equipment handling technical field of construction, more particularly to a kind of urea synthesizer lifting construction side
Method.
Background technology
Urea synthesizer is the maximum device in urea synthesizing ammonia chemical project, is weighed more than 500 tons, length up to more than 20 meters,
During transport of the urea synthesizer by equipment factory to erecting bed, it is typically completed using large-scale crane lifting mode
Loading-unloading vehicle operation, because large-scale crane use cost is very high, and assemble crane expend the time it is long, Standing position of a crane is to field in addition
Ground requirement is also very strict, not only to remove periphery barrier, but also ground need to be handled and lay steel plate, ability
Foundation capability is met standard requirement, therefore have using lifting loading-unloading vehicle mode that crane equipment operating cost is big, operation
The low drawback of complex steps, operating efficiency.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of urea synthesizer construction method for hanging, can preferably solve
The problem of certainly lifting big operating cost, complex operation step, inefficiency.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of urea synthesizer lifting construction side
Method, construction procedure is as follows：
Specified location in urea synthesizer translational thrust concrete frame；
Lifting platform is built in concrete frame top of the trellis, two hoisting beams are installed, two hydraulic rockshafts are arranged on two
Above root girder；
Two hydraulic rockshafts are connected with following urea synthesizer respectively by steel strand wires；
Two hydraulic rockshaft Synchronous lifting work, overall lifting urea synthesizer；Meanwhile, 300t pedrail cranes are turned round
Action, translation synthetic tower is moved forward, and lifts urea synthesizer to vertical state under the cooperation of pedrail crane；
Continue Synchronous lifting urea synthesizer to installment work height, hydraulic rockshaft is stopped, and keeps urea to close
Into the aerial statue of tower；
Unloaded after installing, remove hydraulic test.
Further, the crossbeam of the concrete frame needs the height in reserved four floor rooms, treats that urea synthesizer is in place
Construct again afterwards.
Further, the steel structure platform in the concrete frame all should again be applied after urea synthesizer is installed in place
Work.
Further, installed at the top of the concrete frame absolute altitude and pre-embedded steel slab is placed at hoisting beam.
Further, to be welded when hoisting beam is installed with the pre-embedded steel slab of concrete frame top of the trellis, and two liftings
It is connected firmly between beam with channel-section steel.
Further, two pieces of temporary platforms, the absolute altitude of the temporary platform are set at the top of the concrete frame absolute altitude
Higher than the absolute altitude for installing the hoisting beam.
Further, the pedestal beam of urea synthesizer first carry out it is pre-assembled, it is qualified after be temporarily placed at concrete frame
It is low across on concrete frame in frame, it is again that pedestal beam is in place after urea synthesizer is sling more than setting height(from bottom).
It is using the beneficial effect produced by above-mentioned technical proposal：The present invention is used as load-bearing using concrete frame itself
Structure, two jury hoisting beams are set in concrete frame top of the trellis, set hydraulic rockshaft to be used as urea on hoisting beam
Synthetic tower main hoisting machinery, urea synthesizer afterbody send tail using large-scale crane, coordinates lift to send as auxiliary lifting machine, completes urine
Plain synthetic tower is upright in framework, is finally promoted to installation site using hydraulic rockshaft complete independently urea synthesizer,
Fast, safely and steadly synthetic tower can be lifted in place, safe, small to the additional load of framework, construction equipment is few,
Influence Construction of Steel Structure less, be a relatively advanced reliable hoisting, have received preferable economic and social profit.
Brief description of the drawings
Fig. 1 is the structural representation of suspender in urea synthesizer construction method for hanging provided in an embodiment of the present invention；
Fig. 2 is Fig. 1 side view.
In figure：The level boards of 1- the 3rd；2- strengthens riser；3- vertical plates；4- first level plates；5- clamps；6- annular boss；
7- pin-and-holes；The level boards of 8- second；9- through holes.
Embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Urea synthesizer construction method for hanging provided in an embodiment of the present invention, construction procedure is as follows：
Specified location in urea synthesizer translational thrust concrete frame；
Lifting platform is built in concrete frame top of the trellis, two hoisting beams are installed, two hydraulic rockshafts are arranged on two
Above root girder；
Two hydraulic rockshafts are connected with following urea synthesizer respectively by steel strand wires；
Two hydraulic rockshaft Synchronous lifting work, overall lifting urea synthesizer；Meanwhile, 300t pedrail cranes are turned round
Action, translation synthetic tower is moved forward, and lifts urea synthesizer to vertical state under the cooperation of pedrail crane；
Continue Synchronous lifting urea synthesizer to installment work height, hydraulic rockshaft is stopped, and keeps urea to close
Into the aerial statue of tower；
Unloaded after installing, remove hydraulic test.
Compared with prior art, the present invention is (to produce 520000 tons of urea synthesizers per year in concrete frame elevation of top 61m
Exemplified by) two hoisting beams are set on place's beams of concrete, preferably girder steel sets hydraulic rockshaft to be closed as urea on girder steel
Into tower main hoisting machinery, urea synthesizer afterbody send tail as auxiliary lifting machine using large-scale crane and coordinates lift to send, and completes urea
Synthetic tower is upright in framework, is finally promoted to installation site using hydraulic rockshaft complete independently equipment, can fast,
Safely and steadly synthetic tower is lifted in place, safe, small to the additional load of framework, construction equipment is few, influence steel construction
Construction is less, is a relatively advanced reliable hoisting, have received preferable economic and social profit.
Here, exemplified by producing 520000 tons of urea synthesizers per year, 1 set of 350t hydraulic rockshaft is set on every girder steel,
Advantage is：Hydraulic lifting apparatus uses flexible rigging load-bearing, as long as there is rational suspension centre, hoisting depth is unrestricted；Hydraulic pressure
Lifter anchorage has reverse movement self-locking performance, makes lifting process fool proof, and times that component can be in lifting process
Meaning position is locked reliably and with long-term；Hydraulic rockshaft is driven by hydraulic circuit, and acceleration is minimum in action process, to elevated structure
Part and lifting frame structure are almost without additional dynamic load；Hydraulic lifting device small volume, from heavy and light, large carrying capacity；Machine rigging
Consumption is few, easy to operate, preparation is few, light labor intensity, labour expenditure are few；Construction area scope is small, not by equipment arrival
The limitation of time；The reinforced concrete frame crossbeam of influence equipment hoisting is reserved less；In construction speed, safety, quality, benefit
Aspect obtains Reliable guarantee.
Wherein, hydraulic rockshaft uses hydraulic synchronizing lifting, and hydraulic synchronizing lifting construction technology uses core-theaded type structured liquid
Press lifter as lifting machinery, using flexible steel twisted wire as lifting load-bearing rigging, monitor and count using stroke and displacement sensing
Calculation machine is controlled, and is transmitted by data feedback and control instruction, can automatically realize that synchronization action, load balancing, posture are corrected, answered
Power control, operation locking, process shows and a variety of functions such as fault alarm that capital equipment, which is removed, includes hydraulic rockshaft, in addition to
Hydraulic pump source system and synchronous control system.
Further, the embodiment of the urea synthesizer provided as the present invention, the horizontal stroke of the concrete frame
Beam needs the height in reserved four floor rooms, is constructed again after urea synthesizer is in place.
Further, in the embodiment of the urea synthesizer provided as the present invention, the concrete frame
Steel structure platform all should again construct after urea synthesizer is installed in place.
Further, the embodiment of the urea synthesizer provided as the present invention, the concrete frame absolute altitude
Top, which is installed, places pre-embedded steel slab at hoisting beam.
Further, the embodiment of the urea synthesizer provided as the present invention, will be with mixing when hoisting beam is installed
The pre-embedded steel slab welding of solidifying soil frame roof, and be connected firmly between two hoisting beams with channel-section steel.
Further, the embodiment of the urea synthesizer provided as the present invention, in the concrete frame mark
High top sets two pieces of temporary platforms, and the absolute altitude of the temporary platform is higher than the absolute altitude for installing the hoisting beam.
Further, the embodiment of the urea synthesizer provided as the present invention, the pedestal beam of urea synthesizer
First carry out it is pre-assembled, meet be temporarily placed at after design requirement it is low across on concrete frame, waiting to urinate in concrete frame
Plain synthetic tower is sling again that pedestal beam is in place more than after setting height(from bottom).
The present invention is to produce 520000 tons of urea engineering urea synthesizers (Ф 2800 × 166 × 34700, weight 418t) per year below
Example, illustrates main equipment, rigging consumption.The engineering machinery of coordinating operation, such as excavator, small crane can as the case may be and
It is fixed.
The hydraulic lifting system construction equipment table of table 1
The other construction equipment tables of table 2
The technical measures materials table of table 3
The lifting cost comparison sheet of table 4
The tolerance and actual deviation that urea synthesizer is installed are compared as follows table 5：
Equipment installs tolerance and the comparison sheet 5 of actual deviation
| Inspection project | Tolerance (mm) | Actual deviation (mm) |
| Position of center line | ±10 | +4 |
| Absolute altitude | ±5 | +3 |
| Verticality | 30 | 11 |
| Orientation | 15 are measured along base ring circumference | 8 are measured along base ring circumference |
First, the force analysis of hoisting beam is as follows：
The stress form for lifting crossbeam is simply supported beam centric load, and characteristic value of load is 418t, suspender, steel strand wires, lifting
The temporary components such as device temporarily count 12t, design load P=1.1 × (418+ of partial safety factor for load 1.1, then single lifting crossbeam
12) t/2=236.5t.
Lifting beam section is 800 × 1000 × 20 × 30mm, material Q345B.Beam span L=6m.
Cross section property：Ix=140 × 108mm4, Wx=28 × 106mm3,
Edge of a wing web junction：W1=26 × 106mm3
M=PL/4=236.5 × 104× 6/4=354.75 × 104N·m
Strength check：
Maximum (normal) stress
Maximum shear stress
Edge of a wing web junction
Lift beam strength and meet requirement.
Resistance to overturning：
h/b0=1000/510=2<6, l/b0=6000/510=12<65, the requirement of monolithic stability sexual satisfaction.
Local stability：
b0/ t=510/30=17<33, h0/tw=940/20=47<66, the requirement of local stability sexual satisfaction.
2nd, the force analysis of 350 tons of suspenders is as follows：
The characteristic value of load of single suspension centre be 430t/2=215t, partial safety factor 1.1, then design load P=1.1 ×
215t=236.5t.
Component material Q345
Perforate is checked：(not considering the effect of weight pound)
Weld seam is checked at earth anchor stress：
Symbol is shown in《Hoisting and hanging Simple Calculation》Page 200.
Calculated with synthetic tower otic placode attachment weld：
Bearing pin is checked：
Pin diameter Φ 158mm, W=π D3/ 32=0.387 × 103mm3, A=π D2/ 4=19590mm2, material 40Cr tune
Matter.
M=FL/4-ql2/ 8=236.5 × 104×0.25/4-236.5×104× 0.16/8=10.1 × 104N·m
350t suspenders, which are met, to be required.
Hanger structure referring to Fig. 1 to Fig. 2, including including two pieces of vertical plates be arrangeding in parallel 3, be fixedly connected on described in two pieces
Between vertical plate 3 and and interval the first level plate 4, second level board 8 and threeth water that are sequentially arranged vertical with the vertical plate 3
Flat board 1, the clamp 5 of two pieces of otic placode insertions for being set at the top of tower body is fixedly connected on the lower surface of the first level plate 4,
The pin-and-hole 7 passed through for bearing pin is provided with two pieces of clamps 5, in the level board 1 of the second level board 8 and the 3rd
Between be equipped with the through hole 9 passed through for steel strand wires.
Wherein, each plate thickness is 40mm, vertical plate length 1090mm, width 480mm, the second level board and the 3rd level board
Between spacing be 400mm, the 3rd long 618mm of level board, width 480mm, distance of the first level plate away from vertical plate lower end be
250mm, the lower surface of the second level board is 650mm, two of the two adjacent inner sides of two clamps with the distance of vertical plate lower end
Spacing between annular round platform is 170mm, and it is 320mm to strengthen the spacing between riser.
3rd, the making and examination of lifting device beam：
(1) lift as follows with the installation of equipment, rigging：
The installing of the installation fixation-steel strand wires of fixation-hoisting beam of path formation-hanging beam and upper anchorage-lower anchorage is consolidated
Fixed-equipment level is transported-, which hangs, send pygochord tool-examination to hang-formally lift in place.
(1) smooth lifting construction place, compacting steel arranges the ground of track route：
The group of upper anchorage and hoisting beam to, fixed, installation tool beam and fixation；
Steel strand wires, steel strand wires are installed to fix with lower anchorage；
Whether the assembling of checking tool beam, the setting of machine rigging meet scheme requirement.
(2) equipment is unloaded
Equipment is transported in urea synthesizer framework installation site framework by planker, connection lifting rigging, and equipment is hung
Trailer plate face 200mm.
Organization security joint thorough examination, checks the stressing conditions of main member and machine rigging.
Equipment is continued to lift up until planker can exit framework completely.
Equipment is put in steel row, rolling bar, on sleeper, horizontal towing appliance to Hoisting Position.
Equipment is put on ground, is hung in equipment afterbody and send tail binding rope.
(3) lift in place
Using 2 sets of 350t hydraulic lifting systems as main device for hoisting, pedrail crane send tail to coordinate lifting to plumbness, so
It is individually in place using hydraulic lifting system lifting afterwards.
(4) key points for operation
The making of lifting device beam should observe Construction Technology of Steel Configuration regulation.
Site operation should mark the set location of good tool beam.
Before lifting device is installed on framework top, 2 pieces of special temporary platforms should be set at top, so that work high above the ground is pacified
Entirely.
Hoisting beam should be welded when installing with the built-in fitting of frame roof, be connected firmly between two crossbeams with channel-section steel, stably.
Two hoisting beams necessarily keep respective levelness when installing.
Before equipment hoisting, tackle footing foundation acceptance(check), and by synthetic tower pedestal beam carry out it is pre-assembled, it is qualified after by its
The low across on concrete frame of urea framework is temporarily placed at, it is again that it is in place after equipment is sling more than setting height(from bottom), then
Equipment is in place.
Equipment ensures plumbness as far as possible during lifting, it is ensured that steel strand wires do not rub with the bottom of hoisting steel beam
Wipe.
During equipment hoisting, the stressing conditions of top 2 hydraulic lifting systems of care provider's close observation, it is ensured that 2
The uniform stressed of hydraulic rockshaft.
(5) the lifting quality control of urea synthesizer is as follows：
1) hydraulic system Synchronization Control
Lift Strategy For Synchronization Control：Ensure in lifting process, each lifter stand under load is uniform；Ensure the aerial steady of lift structure
It is fixed, namely require that each suspension centre can keep synchronous in lifting process on direction of improvement.
2) Principle of Synchronic Control
Computer is controlled, and is transmitted by data feedback and control instruction, realize synchronization action, load balancing, posture correction,
Stress Control, process are shown and a variety of functions such as fault alarm.
3) prepare before being lifted and check
Before structure lifting, reply lifting system and lifting (decline) auxiliary equipment check comprehensively and debugging efforts,
Mainly include lifter, leading truck, steel strand wires, lower suspender, pipeline machine valve block, sensor, preloading, temporary facility and barrier
Removing.
4) lifting process quality control
Examination lifting：By try in lifting process to the equipment such as synthetic tower, lifting facility, lifting system observation and monitoring,
Confirmation meets simulation condition calculating and design condition, it is ensured that the safety of lifting process.
Formal lifting：The examination improvement stage starts formal lifting in the case of all going well.Should during whole Synchronous lifting
Check at any time：
Each uniform situation of suspension centre lifter stand under load；The monolithic stability situation of upper suspension centre platform；The equipment liftings such as synthetic tower
The resistance to overturning of process；Computer controls the synchronism of each suspension centre；Lift load bearing system monitoring：Hydraulic power system is monitored.
5) lifted in place
After near equipment Synchronous lifting to design attitude, pause, each suspension centre fine setting makes structure precise elevation reach design position
Put, lifting means pause, locking, the aerial statue of holding structure stablize constant.
6) load shedding is in place
It is same as lifting operating mode, is also synchronous load shedding during unloading, 20%, 40%, 60%, 80% is followed successively by, true
Recognize each several part it is without exception in the case of, can continue to be offloaded to 100%, i.e. lifter steel strand wires no longer stress, structural loads are complete
It is transferred to basis.Structure stress form is converted into design conditions.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
1. a kind of urea synthesizer construction method for hanging, it is characterised in that construction procedure is as follows：
Specified location in urea synthesizer translational thrust concrete frame；
Lifting platform is built in concrete frame top of the trellis, two hoisting beams are installed, two hydraulic rockshafts are arranged on two masters
Above beam；
Two hydraulic rockshafts are connected with following urea synthesizer respectively by steel strand wires；
Two hydraulic rockshaft Synchronous lifting work, overall lifting urea synthesizer；Meanwhile, 300t pedrail cranes do back rotation
Make, translation synthetic tower is moved forward, and lifts urea synthesizer to vertical state under the cooperation of pedrail crane；
Continue Synchronous lifting urea synthesizer to installment work height, hydraulic rockshaft is stopped, and keeps urea synthesizer
Aerial statue；
Unloaded after installing, remove hydraulic rockshaft.
2. urea synthesizer construction method for hanging according to claim 1, it is characterised in that the horizontal stroke of the concrete frame
Beam needs the height in reserved four floor rooms, is constructed again after urea synthesizer is in place.
3. urea synthesizer construction method for hanging according to claim 1, it is characterised in that in the concrete frame
Steel structure platform all should again construct after urea synthesizer is installed in place.
4. urea synthesizer construction method for hanging according to claim 1, it is characterised in that the concrete frame absolute altitude
Top, which is installed, places pre-embedded steel slab at hoisting beam.
5. urea synthesizer construction method for hanging according to claim 1, it is characterised in that will be with mixing when hoisting beam is installed
The pre-embedded steel slab welding of solidifying soil frame roof, and be connected firmly between two hoisting beams with channel-section steel.
6. urea synthesizer construction method for hanging according to claim 1, it is characterised in that in the concrete frame mark
High top sets two pieces of temporary platforms, and the absolute altitude of the temporary platform is higher than the absolute altitude for installing the hoisting beam.
7. urea synthesizer construction method for hanging according to claim 1, it is characterised in that the pedestal beam of urea synthesizer
First carry out it is pre-assembled, it is qualified after be temporarily placed at low across on concrete frame in concrete frame, treat urea synthesizer
Sling again that pedestal beam is in place more than after setting height(from bottom).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405108.2A CN107143143A (en) | 2017-05-31 | 2017-05-31 | Urea synthesizer construction method for hanging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405108.2A CN107143143A (en) | 2017-05-31 | 2017-05-31 | Urea synthesizer construction method for hanging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107143143A true CN107143143A (en) | 2017-09-08 |
Family
ID=59780572
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710405108.2A Pending CN107143143A (en) | 2017-05-31 | 2017-05-31 | Urea synthesizer construction method for hanging |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05321469A (en) * | 1992-05-20 | 1993-12-07 | Kumagai Gumi Co Ltd | All-weather type automatic construction of building |
| CN102777044A (en) * | 2012-08-07 | 2012-11-14 | 中化二建集团有限公司 | Hoisting method of steel-structured spraying layer of urea prilling tower |
| CN103774857A (en) * | 2014-02-25 | 2014-05-07 | 中国化学工程第三建设有限公司 | Hoisting construction method for fixed hydraulic lifting large-sized equipment in frame |
| CN104631839A (en) * | 2015-01-29 | 2015-05-20 | 浙江勤业建工集团有限公司 | Construction method for integrally lifting super-high, super-heavy, large-span space corridor |
| CN104847124A (en) * | 2015-05-19 | 2015-08-19 | 中铁上海工程局集团第五工程有限公司 | Space abnormal shape dissymmetry steel main tower movable type high altitude lifting loading device and method |
-
2017
- 2017-05-31 CN CN201710405108.2A patent/CN107143143A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05321469A (en) * | 1992-05-20 | 1993-12-07 | Kumagai Gumi Co Ltd | All-weather type automatic construction of building |
| CN102777044A (en) * | 2012-08-07 | 2012-11-14 | 中化二建集团有限公司 | Hoisting method of steel-structured spraying layer of urea prilling tower |
| CN103774857A (en) * | 2014-02-25 | 2014-05-07 | 中国化学工程第三建设有限公司 | Hoisting construction method for fixed hydraulic lifting large-sized equipment in frame |
| CN104631839A (en) * | 2015-01-29 | 2015-05-20 | 浙江勤业建工集团有限公司 | Construction method for integrally lifting super-high, super-heavy, large-span space corridor |
| CN104847124A (en) * | 2015-05-19 | 2015-08-19 | 中铁上海工程局集团第五工程有限公司 | Space abnormal shape dissymmetry steel main tower movable type high altitude lifting loading device and method |
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