CN106760830B - Ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction method - Google Patents
Ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction method Download PDFInfo
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- CN106760830B CN106760830B CN201611128900.XA CN201611128900A CN106760830B CN 106760830 B CN106760830 B CN 106760830B CN 201611128900 A CN201611128900 A CN 201611128900A CN 106760830 B CN106760830 B CN 106760830B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/22—Containers for fluent solids, e.g. silos, bunkers; Supports therefor
- E04H7/24—Constructions, with or without perforated walls, depending on the use of specified materials
- E04H7/30—Constructions, with or without perforated walls, depending on the use of specified materials mainly of metal
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Abstract
The invention discloses a kind of ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction methods.Steel coal hopper is divided into several sections first, steel plate is cut into fan ring, and roll-forming with blanking machine according to the size of every section steel coal hopper by it using platform and electric block progress assembling construction is freely lifted；Then head is saved into steel coal hopper welding fabrication at the scene, and is evenly arranged hanging ring on the outside of first section steel coal hopper, lifted head section steel coal hopper in place using truck crane, and electric block is installed at hanging ring；Installation on ground is freely lifted platform at the scene, is overlapped its center of circle with the steel coal hopper center of circle；Positioning baffle is set on being freely lifted platform, the fan ring for forming next section steel coal hopper is placed on and is freely lifted on platform and organizes forming, then welding longitudinal joint, components needed for finally docking, which are placed on, to be freely lifted on platform, platform, which will be freely lifted, using electric block is promoted to docking location, welding circumferential weld；The assembly of remaining each section steel coal hopper is sequentially completed using upside-down method of hull-section construction.
Description
Technical field
The present invention relates to a kind of ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction methods.
Background technique
Ultra-large type boundling polygon coal bunker group is honeycomb type coal bunker, using reinforced concrete frame structure, long 210.35m,
Wide 60.45m, high 45m, warehouse are made of several hexagon coal bunkers, and in 20.6m, the above are warehouse stalk knots in each honeycomb storehouse
Structure, the following are steel scuttles by 20.6m.Steel coal hopper is conical structure, high 16.1m, back cut diameter 14.8m, lower port diameter
2.86m belongs to ultra-large type coal scuttle.
Currently, be usually to be installed using in such a way that inner peripheral sets up scaffold for the installation of steel coal hopper, it is this
Construction method construction speed is slow, costly, and safe mass cannot ensure, and is difficult to eliminate each section steel coal hopper in the construction process
Between welding stress, construction quality is difficult to ensure, therefore is difficult to reach using traditional method for setting up scaffold installation steel coal hopper
To the construction requirement of large-scale steel coal hopper, and the duration can be impacted.
Summary of the invention
In view of the above defects of the prior art, the present invention provides one kind, and each section can be eliminated during assembly
Welding stress between steel coal hopper improves steel coal hopper assembly quality, and can be realized the ultra-large type collection of high-efficiency and low-cost assembly
Beam polygon coal bunker group's cone steel coal hopper assembling and construction method.
The present invention is achieved by the following technical solution: a kind of ultra-large type boundling polygon coal bunker group's cone steel coal
Struggle against assembling and construction method, it is characterized in that: carry out assembling construction using platform and electric block is freely lifted, it is described be freely lifted it is flat
Platform includes circular truss structure, the steel plate being laid on the truss structure and is connected to hanging for the truss structure edge
Ear, the truss structure include multiple steel-tube constructions across the setting of truss structure center, and the steel-tube construction is in truss structure
Center be fixed together, between steel-tube construction described in each adjacent two be equipped with connection two steel-tube construction endpoints I-shaped
The I-steel B that steel A and two parallel with the I-steel A and adjacent with this steel-tube constructions are connect, each steel
Pipe structure includes top boom and lower boom disposed in parallel and the web member that is connected between the top boom and the lower boom；Tool
Steps are as follows for body assembling construction:
(1) steel coal hopper is divided axially into several sections along it, CNC cutting machine is utilized according to the design size of every section steel coal hopper
Steel plate is cut into the corresponding fan ring for forming every section steel coal hopper, and ring roll-forming will be fanned using veneer reeling machine；
(2) by head section steel coal hopper welding fabrication, and the outside of the head section steel coal hopper after welding fabrication on construction ground
Six hanging rings are evenly arranged, it is using 500t truck crane that head section steel coal hopper lifting is in place, and hung after lifting is in place each
Electric block is installed at ring；
(3) measurement and positioning goes out the center of circle of each steel coal hopper on the ground, is freely lifted platform described in assembly at the scene, and make
The center of circle for being freely lifted platform is overlapped with the center of circle of steel coal hopper；
(4) positioning baffle is arranged according to the bottom size of next section steel coal hopper to be installed on being freely lifted platform, it will
The prefabricated profiled fan ring for forming the section steel coal hopper, which is placed on, to be freely lifted on platform, and the positioning by being freely lifted on platform
Baffle makes all fan rings form the shape of the section steel coal hopper, and then welding longitudinal joint forms, and then carries out lining processing, finally
This section steel coal hopper with upper section steel coal hopper is docked into place components is needed to be placed on and be freely lifted on platform, by the electric block
It is connect with the lifting lug for being freely lifted platform, platform will be freely lifted by electric block and be promoted to docking location, then organize butt welding
Connect circumferential weld；
(5) step (4) are repeated, the assembly of remaining each section steel coal hopper is sequentially completed using upside-down method of hull-section construction.
Further, it in order to guarantee welding quality, is controlled freely in each section steel coal hopper butt welding by electric block
Hoistable platform eliminates welding stress.
For convenient for the control to platform is freely lifted, each electric block has individually control power supply and switch.Pass through list
The electric block solely controlled may be implemented to being freely lifted freely controlling for platform.Such as: pass through each electronic calabash individually controlled
Reed carries out automatic aligning to hoistable platform.
To guarantee construction quality, the promotion for being freely lifted platform and falling speed are no more than 1m/min.
For the ease of quickly assembling, it is freely lifted each of platform steel-tube construction and is divided into central part and both ends
Point, by flanged joint, the central part of each steel-tube construction is connected for the central part and the both ends part
For entirety.
The beneficial effects of the present invention are: the present invention realizes the assembly of each section steel coal hopper by using platform is freely lifted,
It is not required to carry out interior support arm during assembled to set up and remove, reduces construction risk coefficient and construction workload, accelerate and apply
Work progress, and reduce construction cost, and platform is freely lifted by control in work progress can eliminate between each section steel coal hopper
Welding stress, it is excessive to prevent from deforming not need to increase internal support in work progress, can greatly improve construction quality.This
What is used in invention is freely lifted platform using truss structure, and overall structural strength is high, using reliable, can satisfy large size completely
The assembled demand of steel coal hopper.Construction method of the invention is adaptable, has a wide range of application, and is specially adapted to large-scale cone feed bin
Assembling construction saves the costs such as human and material resources, ensure that the safety of personnel, effectively increases the safety coefficient of high altitude operation,
There are very strong practicability and superiority for Chinese large-sized steel construction feed bin and similar Structural Engineering construction.
Detailed description of the invention
Fig. 1 is the inside schematic diagram of the cone steel coal hopper in the specific embodiment of the invention；
Fig. 2 is the overlooking structure diagram that platform is freely lifted in the specific embodiment of the invention；
Fig. 3 is the schematic diagram that the lifting lug of platform is freely lifted in the specific embodiment of the invention；
Fig. 4 is the schematic diagram that the steel-tube construction A of platform is freely lifted in the specific embodiment of the invention；
Fig. 5 is the A-A direction view of Fig. 4；
Fig. 6 is the schematic diagram that the first connecting plate of platform is freely lifted in the specific embodiment of the invention；
Fig. 7 is the schematic diagram that second of connecting plate of platform is freely lifted in the specific embodiment of the invention；
Fig. 8 is the schematic diagram that the stiffener of platform is freely lifted in the specific embodiment of the invention；
Fig. 9 is the schematic diagram of the assembled steel coal hopper on being freely lifted platform in the specific embodiment of the invention；
Figure 10 is the B-B schematic diagram in Fig. 9；
In figure, 1, truss structure, 2, lifting lug, 3, steel-tube construction, 31, steel-tube construction A, 32, steel-tube construction B, 33, steel pipe knot
Structure C, 34, top boom, 35, lower boom, 36, web member, 37, central part, 38, both ends part, 4, I-steel A, 41, I-steel
A1, 42, I-steel A2, 43, I-steel A3, 5, I-steel B, 51, I-steel B1, 52, I-steel B2, 53, I-steel B3, 6, connection
Plate, 7, stiffener, 8, steel bar, 9, flange, 10, central tube, 11, be freely lifted platform, 12, positioning baffle, 13, steel coal hopper.
Specific embodiment
Below by non-limiting embodiment and in conjunction with attached drawing, the present invention is further illustrated:
As shown in the picture, a kind of ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction method utilizes
It is freely lifted platform 11 and electric block carries out assembling construction.Wherein, the platform 11 that is freely lifted includes circular truss knot
It structure 1, the steel plate (not shown) being laid on the truss structure 1 and is connected to the multiple of truss structure edge and hangs
Ear 2, truss structure 1 include multiple steel-tube constructions 3 across the setting of truss structure center, are provided with three in the embodiment of the present invention
Steel-tube construction 3, three steel-tube constructions 3 are evenly arranged, respectively steel-tube construction A31, steel-tube construction B32 and steel-tube construction C33, and three
A steel-tube construction 3 is fixed together at the center of truss structure, and connection two is equipped between steel-tube construction 3 described in each adjacent two
The I-steel A4 of 3 endpoint of steel-tube construction and two steel-tube constructions parallel and adjacent with this with the I-steel A4
The I-steel B5 of 3 connections, wherein be I-steel A between steel-tube construction B32 and steel-tube construction C33141 and I-steel
B151, it is I-steel A between steel-tube construction A31 and steel-tube construction B32242 and I-steel B252, it is located at steel-tube construction
It is I-steel A between A31 and steel-tube construction C33343 and I-steel B353, each steel-tube construction 3 includes disposed in parallel winds up
Bar 34 and lower boom 35 and several web members 36 being connected between top boom 34 and lower boom 35.The setting of lifting lug 2 exists
The end of steel-tube construction 3.For convenience of the assembly of platform, each steel-tube construction 3 divides for central part 37 and both ends part 38, center
Part 37 is connect with both ends part 38 by flange 9, and the central part 37 of each steel-tube construction 3 is welded by intermediate central tube 10
It is connected in entirety in succession, each steel-tube construction 3 is equipped with multiple connecting plates 6, and the form of connecting plate 6 includes as shown in Figure 5 and Figure 6
Two kinds of forms, I-steel B5 are fixedly connected by connecting plate 6 with steel-tube construction, for the intensity for increasing truss structure 1, central part
Stiffener 7 is equipped in the central tube 10 of 37 center；For preferably supporting steel plate, the steel plate of truss structure and upper part it
Between be evenly arranged with several steel bars 8 to link together with truss structure, steel bar 8 is solid by the connecting plate 6 and steel-tube construction 3
Fixed connection.
Steps are as follows for specific assembling construction:
(1) steel coal hopper is divided axially into several sections along it, CNC cutting machine is utilized according to the design size of every section steel coal hopper
Steel plate is cut into the corresponding fan ring for forming every section steel coal hopper, and ring roll-forming will be fanned using veneer reeling machine.Blanking Shi Yaojin
Row size Control: the 1. angle of control cutting pipette tips；2. increasing cutting slit width surplus 0.5mm；3. increasing welding contracted quantity
1.0mm.During roll bending, it is averagely segmented arc length, first calculates the outer arc length of fan ring, it is adjacent then along outer arc dash Along ent
Outer arc between Along ent is failed to grow up in 1.1 meters, and according to each Along ent, actionradius control-rod draws radial line segments on plate,
Equal part fans ring.
(2) by head section steel coal hopper welding fabrication, and the outside of the head section steel coal hopper after welding fabrication on construction ground
Six hanging rings of uniform welding, it is using 500t truck crane that head section steel coal hopper lifting is in place, and hung after lifting is in place each
Electric block is installed at ring；Wherein, each electric block should have individually control power supply and switch.
(3) measurement and positioning goes out the center of circle of each steel coal hopper on the ground, and the control point for being used for positioning centre is arranged, existing
Field, which assembles, is freely lifted platform, and is overlapped the center of circle for being freely lifted platform with the center of circle of steel coal hopper；
(4) it is arranged according to the bottom size of next section steel coal hopper to be installed in its outer rim on being freely lifted platform and is positioned
Baffle 12, for positioning baffle 12 for guaranteeing steel coal hopper line style size, positioning baffle 12 is thickness 2cm* height 5cm* length
The carbon steel steel plate of 10cm, spacing 50cm, positioning baffle error≤3mm put the prefabricated profiled fan ring for forming the section steel coal hopper
It sets on being freely lifted platform, and the positioning baffle 12 by being freely lifted on platform makes all fan rings form the section steel coal hopper
Shape, then welding longitudinal joint, forms the section steel coal hopper, then carries out lining processing, finally by this section steel coal hopper and upper one
Section steel coal hopper docking place needs components to be placed on to be freely lifted on platform, and electric block is connected with the lifting lug for being freely lifted platform
It connects, platform will be freely lifted by electric block and be promoted to docking location, then welding circumferential weld；Electric block promoted and under
Terminal-velocity degree is not more than 1m/min.It is controlled in each section steel coal hopper butt welding by electric block and is freely lifted platform to eliminate
Welding stress.
(5) step (4) are repeated, the assembly of remaining each section steel coal hopper is from top to bottom sequentially completed using upside-down method of hull-section construction.
The present invention is freely lifted platform by control and eliminates welding stress, can quick and precisely install each section steel coal hopper, make
It obtains steel coal hopper assembly unfitness of butt joint to control within 1mm, steel coal hopper upper and lower opening inner diameter deviation is respectively less than 5mm, meets code requirement
(unfitness of butt joint≤t/10, coal scuttle upper and lower opening inner diameter deviation≤D/500), construction quality is guaranteed, save the cost.
Other parts in the present embodiment use known technology, and details are not described herein.
Claims (3)
1. a kind of ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction method, it is characterized in that: using freely rising
It drops platform and electric block carries out assembling construction, the platform that is freely lifted includes circular truss structure, is laid on the purlin
Steel plate in frame structure and the lifting lug for being connected to the truss structure edge, the truss structure includes in truss structure
Multiple steel-tube constructions of heart setting, the steel-tube construction are fixed together at the center of truss structure, steel described in each adjacent two
Be equipped between pipe structure two steel-tube construction endpoints of connection I-steel A and it is parallel with the I-steel A and with the phase
The I-steel B of the steel-tube construction connection of adjacent two, each steel-tube construction includes top boom and lower edge disposed in parallel
Bar and the web member being connected between the top boom and the lower boom；Each of platform steel-tube construction is freely lifted to be divided into
Central part and both ends part, the central part and the both ends part pass through flanged joint, each steel-tube construction
The central part is connected as entirety；Steps are as follows for specific assembling construction:
(1) steel coal hopper is divided axially into several sections along it, utilizes CNC cutting machine by steel according to the design size of every section steel coal hopper
Plate is cut into the corresponding fan ring for forming every section steel coal hopper, and will fan ring roll-forming using veneer reeling machine；
(2) head is saved into steel coal hopper welding fabrication on construction ground, and the outside of the head section steel coal hopper after welding fabrication is uniform
Arrange six hanging rings, it is using 500t truck crane that head section steel coal hopper lifting is in place, and after lifting is in place at each hanging ring
Electric block is installed；
(3) measurement and positioning goes out the center of circle of each steel coal hopper on the ground, is freely lifted platform described in assembly at the scene, and make freedom
The center of circle of hoistable platform is overlapped with the center of circle of steel coal hopper；
(4) positioning baffle is arranged according to the bottom size of next section steel coal hopper to be installed on being freely lifted platform, will formed
The prefabricated profiled fan ring of the section steel coal hopper, which is placed on, to be freely lifted on platform, and the positioning baffle by being freely lifted on platform
All fan rings are made to form the shape of the section steel coal hopper, then welding longitudinal joint forms, and then carries out lining processing, finally incite somebody to action this
It saves steel coal hopper and with a upper section steel coal hopper dock place components is needed to be placed on and be freely lifted on platform, by the electric block and oneself
It is connected by the lifting lug of hoistable platform, platform will be freely lifted by electric block and be promoted to docking location, then welding ring
Seam；
(5) step (4) are repeated, the assembly of remaining each section steel coal hopper is sequentially completed using upside-down method of hull-section construction；In each section steel coal hopper butt welding
Platform is freely lifted to eliminate welding stress by electric block control when connecing.
2. ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction method according to claim 1, special
Sign is: each electric block has individually control power supply and switch.
3. ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction method according to claim 1, special
Sign is: the promotion for being freely lifted platform and falling speed are no more than 1m/min.
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| CN106760830B true CN106760830B (en) | 2019-03-26 |
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| CN109759774B (en) * | 2019-01-23 | 2020-10-20 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | On-site repair method for root cracking defect of 500kV converter transformer side sleeve flange plate |
| CN110436063B (en) * | 2019-06-21 | 2022-05-24 | 中机国能电力工程有限公司 | Method for reinforcing bulge of suspended rectangular steel coal bucket |
| CN114922489A (en) * | 2022-05-13 | 2022-08-19 | 中化二建集团有限公司 | Modular construction method of large-diameter centrum equipment |
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