CN106760830A - 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 PDF

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Publication number
CN106760830A
CN106760830A CN201611128900.XA CN201611128900A CN106760830A CN 106760830 A CN106760830 A CN 106760830A CN 201611128900 A CN201611128900 A CN 201611128900A CN 106760830 A CN106760830 A CN 106760830A
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China
Prior art keywords
steel
coal hopper
construction
platform
freely lifted
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Application number
CN201611128900.XA
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Chinese (zh)
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CN106760830B (en
Inventor
杨基好
李永
左鹏
左一鹏
杨炜林
孟冲
张延军
欧阳光辉
吕彦平
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FOURTH ENGINEERING Co Ltd OF CHINA RAIWAY TENTH GROUP
China Railway No 10 Engineering Group Co Ltd
Fourth Engineering Co Ltd of China Railway No 10 Engineering Group Co Ltd
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FOURTH ENGINEERING Co Ltd OF CHINA RAIWAY TENTH GROUP
China Railway No 10 Engineering Group Co Ltd
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Application filed by FOURTH ENGINEERING Co Ltd OF CHINA RAIWAY TENTH GROUP, China Railway No 10 Engineering Group Co Ltd filed Critical FOURTH ENGINEERING Co Ltd OF CHINA RAIWAY TENTH GROUP
Priority to CN201611128900.XA priority Critical patent/CN106760830B/en
Publication of CN106760830A publication Critical patent/CN106760830A/en
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H7/00Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
    • E04H7/22Containers for fluent solids, e.g. silos, bunkers; Supports therefor
    • E04H7/24Constructions, with or without perforated walls, depending on the use of specified materials
    • E04H7/30Constructions, with or without perforated walls, depending on the use of specified materials mainly of metal

Abstract

The invention discloses a kind of ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction method.It carries out assembling construction using platform and electric block is freely lifted, and steel coal hopper is divided into some sections first, and steel plate is cut into fan ring, and roll-forming by the size blanking machine according to every section steel coal hopper;Then head is saved into steel coal hopper welding fabrication at the scene, and suspension ring is evenly arranged on the outside of first section steel coal hopper, lifted in place head section steel coal hoppers using truck crane, and electric block is installed at suspension ring;Installation on ground is freely lifted platform at the scene, its center of circle is overlapped with the steel coal hopper center of circle;Being freely lifted, positioning baffle is set on platform, the fan ring that next section steel coal hopper will be constituted is placed on and is freely lifted on platform and constitutes shape, then welding longitudinal joint, finally parts needed for docking are placed on and are freely lifted on platform, platform will be freely lifted using electric block be 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

Ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction method
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 method.
Background technology
Ultra-large type boundling polygon coal bunker group is honeycomb type coal bunker, using reinforced concrete frame structure, 210.35m long, 60.45m wide, 45m high, warehouse are made up of several hexagon coal bunkers, and each honeycomb storehouse is warehouse stalk knot in more than 20.6m Structure, below 20.6m is steel scuttle.Steel coal hopper is conical structure, 16.1m high, back cut diameter 14.8m, lower port diameter 2.86m, belongs to ultra-large type coal bunker.
At present, installed for the mode that the installation of steel coal hopper is typically with setting up scaffold in inner peripheral, it is this Construction method construction speed is slow, and costly, safe mass cannot be ensured, and be difficult to eliminate each section steel coal hopper in work progress Between welding stress, construction quality is difficult to ensure that, thus using it is traditional set up scaffold the method for steel coal hopper be installed be difficult to reach To the construction requirement of large-scale steel coal hopper, and the duration can be impacted.
The content of the invention
For drawbacks described above present in prior art, each section can be eliminated during assembly the invention provides one kind Welding stress between steel coal hopper, improves steel coal hopper assembly quality, and can realize the assembled ultra-large type collection of high-efficiency and low-cost 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 cone steel coal Bucket assembling and construction method, it is characterized in that:Using being freely lifted platform and electric block carries out assembling construction, 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 includes that through truss structure centrally disposed multiple steel-tube constructions the steel-tube construction is in truss structure Center be fixed together, per being provided with two I-shapeds of the steel-tube construction end points of connection between the two neighboring steel-tube construction Steel A and two parallel and adjacent with this with the I-steel A I-steel B of the steel-tube construction connection, each described steel Tubular construction includes the top boom be arrangeding in parallel and lower boom and the web member being connected between the top boom and the lower boom;Tool Body assembling construction step is as follows:
(1) steel coal hopper is divided axially into some sections along it, the design size according to every section steel coal hopper utilizes CNC cutting machine Steel plate is cut into the corresponding fan ring that composition often saves steel coal hopper, and ring roll-forming will be fanned using veneer reeling machine;
(2) by head section steel coal hopper welding fabrications on construction ground, and the head section steel coal hoppers after welding fabrication outside Six suspension ring are evenly arranged, it is using 500t truck cranes that head section steel coal hopper liftings is in place, and hung at each after lifting is in place 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 of platform is freely lifted to be overlapped with the center of circle of steel coal hopper;
(4) the bottom size setting positioning baffle according to next section steel coal hopper to be installed is being freely lifted on platform, will The prefabricated profiled fan ring for constituting the section steel coal hopper is placed on and is freely lifted on platform, and the positioning by being freely lifted on platform Baffle plate makes all fan ring groups into the shape of the section steel coal hopper, and then the shaping of welding longitudinal joint, then carries out lining processing, finally This section steel coal hopper is placed on parts needed for upper one section steel coal hopper joint and is freely lifted on platform, by the electric block It is connected with the hanger for being freely lifted platform, will be freely lifted platform by electric block is promoted to docking location, then organizes butt welding Connect circumferential weld;
(5) repeat step (4), the assembly of remaining each section steel coal hopper is sequentially completed using upside-down method of hull-section construction.
Further, in order to ensure welding quality, controlled freely by electric block in each section steel coal hopper butt welding Hoistable platform eliminates welding stress.
For ease of the control to being freely lifted platform, each electric block has individually control power supply and switch.By list Solely the electric block of control can be realized to being freely lifted freely controlling for platform.For example:By the electronic calabash of each independent control Reed carries out automatic aligning to hoistable platform.
To ensure construction quality, lifting and the falling speed no more than 1m/min of platform are freely lifted.
For the ease of quick assembling, each the described steel-tube construction for being freely lifted platform is divided into core and both ends Point, the core is connected with the two end portions by flange, the core connection of each steel-tube construction It is entirety.
The beneficial effects of the invention are as follows:Assembly by realizing each section steel coal hopper using platform is freely lifted of the invention, It is not required to carry out interior support arm during assembly to set up and remove, reduces construction risk coefficient and construction workload, accelerates and apply Work progress, and reduce in construction cost, and work progress and be freely lifted between platform can eliminate each section steel coal hopper by control Welding stress, internal support need not be increased in work progress to prevent deformation excessive, construction quality can be greatly improved.This The platform that is freely lifted used in invention uses truss structure, and overall construction intensity is high, using reliability, can meet completely large-scale The assembled demand of steel coal hopper.Construction method strong adaptability of the invention, 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, it is ensured that the safety of personnel, effectively increases the safety coefficient of work high above the ground, There is very strong practicality and superiority for Chinese large-sized steel construction feed bin and similar Structural Engineering construction.
Brief description of the drawings
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 the structure diagram that platform is freely lifted in the specific embodiment of the invention;
Fig. 3 is the schematic diagram of the hanger that platform is freely lifted in the specific embodiment of the invention;
Fig. 4 is the schematic diagram of the steel-tube construction A that platform is freely lifted in the specific embodiment of the invention;
Fig. 5 is the A-A direction views of Fig. 4;
Fig. 6 is the schematic diagram of the first connecting plate that platform is freely lifted in the specific embodiment of the invention;
Fig. 7 is the schematic diagram of second connecting plate that platform is freely lifted in the specific embodiment of the invention;
Fig. 8 is the schematic diagram of the stiffener that platform is freely lifted in the specific embodiment of the invention;
Fig. 9 is to be freely lifted the schematic diagram of assembled steel coal hopper on platform in the specific embodiment of the invention;
Figure 10 is the B-B schematic diagrames in Fig. 9;
In figure, 1, truss structure, 2, hanger, 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, core, 38, two end portions, 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 the present invention is further illustrated with reference to accompanying drawing:
As shown in drawings, a kind of ultra-large type boundling polygon coal bunker group cone steel coal hopper assembling and construction method, its utilization Being freely lifted platform 11 and electric block carries out assembling construction.Wherein, the platform 11 that is freely lifted includes circular truss knot Structure 1, the steel plate (not shown) being laid on the truss structure 1 and it is connected to the multiple at the truss structure edge and hangs Ear 2, truss structure 1 is included through the centrally disposed multiple steel-tube constructions 3 of truss structure, there is provided 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 Individual steel-tube construction 3 is fixed together at the center of truss structure, and connection two is provided between every two neighboring steel-tube construction 3 The I-steel A4 of the end points of the steel-tube construction 3 and two steel-tube constructions parallel and adjacent with this with the I-steel A4 The I-steel B5 of 3 connections, wherein, between steel-tube construction B32 and steel-tube construction C33 is I-steel A141 and I-steel B151, between steel-tube construction A31 and steel-tube construction B32 is I-steel A242 and I-steel B252, positioned at steel-tube construction Between A31 and steel-tube construction C33 is I-steel A343 and I-steel B353, each steel-tube construction 3 includes that what is be arranged 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.Hanger 2 is arranged on The end of steel-tube construction 3.For convenience of the assembly of platform, 3 points of each steel-tube construction is core 37 and two end portions 38, center Part 37 is connected with two end portions 38 by flange 9, and the core 37 of each steel-tube construction 3 is welded by middle central tube 10 Entirety is connected in succession, each steel-tube construction 3 is provided with multiple connecting plates 6, the form of connecting plate 6 is included as shown in Figure 5 and Figure 6 Two kinds of forms, I-steel B5 is fixedly connected by connecting plate 6 with steel-tube construction, to increase the intensity of truss structure 1, core Stiffener 7 is provided with the central tube 10 of 37 center;Be preferably supporting steel plate, the steel plate on truss structure and its top it Between be evenly arranged with some steel bars 8 linked together with truss structure, steel bar 8 is consolidated by the connecting plate 6 with steel-tube construction 3 Fixed connection.
Specific assembling construction step is as follows:
(1) steel coal hopper is divided axially into some sections along it, the design size according to every section steel coal hopper utilizes CNC cutting machine Steel plate is cut into the corresponding fan ring that composition often saves steel coal hopper, and ring roll-forming will be fanned using veneer reeling machine.To enter during blanking Row size Control:1. the angle of pipette tips is cut in control;2. cutting slit width surplus 0.5mm is increased;3. welding contracted quantity is increased 1.0mm.During roll bending, arc length is averagely segmented, 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, Decile fans ring.
(2) by head section steel coal hopper welding fabrications on construction ground, and the head section steel coal hoppers after welding fabrication outside Six suspension ring of uniform welding, it is using 500t truck cranes that head section steel coal hopper liftings is in place, and hung at each after lifting is in place 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 is provided for the control point of positioning centre, existing Field assembles and is freely lifted platform, and makes to be freely lifted the center of circle of platform and overlapped with the center of circle of steel coal hopper;
(4) bottom size according to next section steel coal hopper to be installed is being freely lifted on platform in its outer rim setting positioning Baffle plate 12, positioning baffle 12 is used to ensure steel coal hopper line style size that positioning baffle 12 to be thickness 2cm* height 5cm* length The carbon steel steel plate of 10cm, spacing 50cm, positioning baffle error≤3mm puts the prefabricated profiled fan ring for constituting the section steel coal hopper Put being freely lifted on platform, and all fan ring groups into the section steel coal hopper are made by the positioning baffle 12 being freely lifted on platform Shape, then welding longitudinal joint, is molded the section steel coal hopper, then carries out lining processing, finally by this section steel coal hopper and upper Parts needed for section steel coal hopper joint are placed on and are freely lifted on platform, and electric block is connected with the hanger for being freely lifted platform Connect, will be freely lifted platform by electric block is promoted to docking location, then welding circumferential weld;Electric block lifted and under Terminal-velocity degree is not more than 1m/min.Control to be freely lifted platform by electric block to eliminate in each section steel coal hopper butt welding Welding stress.
(5) repeat step (4), 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 and eliminates welding stress by control, can quick and precisely install each section steel coal hopper, makes Obtain 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 bunker upper and lower opening inner diameter deviation≤D/500), construction quality is guaranteed, cost-effective.
Other parts in the present embodiment use known technology, will not be repeated here.

Claims (5)

1. a kind of ultra-large type boundling polygon coal bunker group cone steel coal hopper assembling and construction method, it is characterized in that:Using free liter Drop platform and electric block carry out assembling construction, and the platform that is freely lifted includes circular truss structure, is laid on the purlin Steel plate in frame structure and the hanger at the truss structure edge is connected to, the truss structure is included through in truss structure Multiple steel-tube constructions that the heart is set, the steel-tube construction is fixed together at the center of truss structure, per the two neighboring steel Be provided between tubular construction the I-steel A of two steel-tube construction end points of connection and it is parallel with the I-steel A and with the phase Two adjacent I-steel B of the steel-tube construction connection, each described steel-tube construction includes the top boom and lower edge that be arranged in parallel Bar and the web member being connected between the top boom and the lower boom;Specific assembling construction step is as follows:
(1) steel coal hopper is divided axially into some sections along it, the design size according to every section steel coal hopper utilizes CNC cutting machine by steel Plate cuts into the corresponding fan ring that composition often saves 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 hoppers after welding fabrication is uniform Six suspension ring of arrangement, it is using 500t truck cranes that head section steel coal hopper liftings is in place, and after lifting is in place at each suspension 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 overlaps with the center of circle of steel coal hopper;
(4) the bottom size setting positioning baffle according to next section steel coal hopper to be installed is being freely lifted on platform, will be being constituted The prefabricated profiled fan ring of the section steel coal hopper is placed on and is freely lifted on platform, and the positioning baffle by being freely lifted on platform Make all fan ring groups into the shape of the section steel coal hopper, then the shaping of welding longitudinal joint, then carries out lining processing, finally incite somebody to action this Section steel coal hopper is placed on parts needed for upper one section steel coal hopper joint and is freely lifted on platform, by the electric block and certainly Connected by the hanger of hoistable platform, platform will be freely lifted by electric block and be promoted to docking location, then welding ring Seam;
(5) repeat step (4), the assembly of remaining each section steel coal hopper is sequentially completed using upside-down method of hull-section construction.
2. ultra-large type boundling polygon coal bunker according to claim 1 group cone steel coal hopper assembling and construction method, it is special Levying is:Control to be freely lifted platform by electric block to eliminate welding stress in each section steel coal hopper butt welding.
3. ultra-large type boundling polygon coal bunker according to claim 1 group cone steel coal hopper assembling and construction method, it is special Levying is:Each electric block has individually control power supply and switch.
4. ultra-large type boundling polygon coal bunker according to claim 1 group cone steel coal hopper assembling and construction method, it is special Levying is:It is freely lifted lifting and the falling speed no more than 1m/min of platform.
5. ultra-large type boundling polygon coal bunker according to claim 1 group cone steel coal hopper assembling and construction method, it is special Levying is:Each the described steel-tube construction for being freely lifted platform is divided into core and two end portions, the core with it is described Two end portions are connected by flange, and the core of each steel-tube construction is connected as entirety.
CN201611128900.XA 2016-12-09 2016-12-09 Ultra-large type boundling polygon coal bunker group's cone steel coal hopper assembling and construction method Active CN106760830B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109759774A (en) * 2019-01-23 2019-05-17 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 A kind of 500kV converter transformer valve side sleeve ring flange root cracking defect field repairing method

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN109759774A (en) * 2019-01-23 2019-05-17 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 A kind of 500kV converter transformer valve side sleeve ring flange root cracking defect field repairing method

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