CN113232144A - High-speed railway prefabricated box girder production line and production process - Google Patents
High-speed railway prefabricated box girder production line and production process Download PDFInfo
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- CN113232144A CN113232144A CN202110533834.9A CN202110533834A CN113232144A CN 113232144 A CN113232144 A CN 113232144A CN 202110533834 A CN202110533834 A CN 202110533834A CN 113232144 A CN113232144 A CN 113232144A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 83
- 239000004567 concrete Substances 0.000 claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 51
- 239000010959 steel Substances 0.000 claims abstract description 51
- 238000005507 spraying Methods 0.000 claims abstract description 20
- 238000004140 cleaning Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims abstract description 15
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000012423 maintenance Methods 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000007689 inspection Methods 0.000 claims description 19
- 239000004574 high-performance concrete Substances 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000006082 mold release agent Substances 0.000 abstract description 3
- 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 abstract description 2
- 239000003795 chemical substances by application Substances 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/04—Producing shaped prefabricated articles from the material by tamping or ramming
- B28B1/045—Producing shaped prefabricated articles from the material by tamping or ramming combined with vibrating or jolting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
A production line and a production process for a high-speed railway prefabricated box girder comprise a reinforcing steel bar processing station, a reinforcing steel bar binding and hoisting station, an inner mold storage station, a template installation station, a concrete pouring and vibrating station, a maintenance station, a template removal station, a tensioning station, a girder lifting station, a conversion station, a template cleaning station, a mold release agent spraying station, a detection and transverse moving station and the like which are sequentially arranged according to a process sequence to form the production line, a steel template is selected and transported along a rail by adopting an electric wheel set to integrally move to form a hollow closed-loop line assembly line, eleven steps of reinforcing steel bar processing, reinforcing steel bar binding and hoisting, template installation, concrete pouring and vibrating, concrete steam maintenance, template dismantling, pre-primary lifting, girder stripping, tensioning box girder outer mold transferring and cleaning, mold release agent spraying, outer mold detection and transverse moving and the like are realized to adapt to the production requirement of the high-speed railway prefabricated box girder, the product structure size is accurate, and the production efficiency of the square-shaped closed loop assembly line production is improved and the production cost is saved compared with the production by a fixed pedestal method.
Description
Technical Field
The invention belongs to the technical field of high-speed railway prefabricated box girder production, and particularly relates to a high-speed railway prefabricated box girder production line and a production process.
Background
At present, a large number of prefabricated box girders are adopted in railway engineering, the construction procedures of the prefabricated box girders are multiple, the existing procedures and process characteristics are limited, the production is mainly carried out by a fixed die and fixed pedestal method at the present stage, the production efficiency is not high, the number of steel templates and beam-making pedestals is large, the occupied production field is large, and the assembly line operation is not realized.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a high-speed railway precast box girder production line and a production process, which establish a set of factory and assembly line production processes to integrally precast box girders, reduce the number of template pedestals, improve the production efficiency by work station operation, reduce the number of templates and reduce the cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
a high-speed railway precast box girder production line and a production process thereof comprise a steel bar processing station (1), a steel bar binding and hoisting station (2), an internal mold storage station (3), a template installation station (4), a concrete pouring and vibrating station (5), a maintenance station (6), a template removal station (7), a tensioning station (8), a girder lifting station (9), a conversion station (10), a template cleaning station (11), a mold release agent spraying station (12) and a detection transverse moving station (13) which are sequentially arranged to form the production line; a concrete production station (14) is arranged beside the concrete pouring and vibrating station (5);
the steel bar processing station (1) is used for storing raw materials of the steel bars and manufacturing and processing the steel bars;
the steel bar binding and hoisting station (2) is used for integrally binding and hoisting the steel bar top and bottom plates;
the internal mold storage station (3) is used for cleaning and storing the internal mold of the box girder;
the template mounting station (4) is used for placing the box girder external mold (17) and hoisting the reinforcing steel bars into the mold, and mounting the internal mold and the end mold;
the concrete pouring and vibrating station (5) is used for pouring and vibrating concrete by the longitudinally moved box girder outer die (17);
the curing station (6) is used for carrying out steam curing on the box girder outer mold (17) which is transferred after the concrete is poured;
the mould removing station (7) is used for removing the inner mould and the end mould of the box girder outer mould (17) with the strength reaching the steam curing completion strength;
the tensioning station (8) is used for penetrating and pre-tensioning the longitudinally transferred box girder external mold (17);
the lifting beam station (9) is used for lifting the box beam which is longitudinally moved and is stretched in the box beam outer mold (17), and transporting away and storing the box beam;
the conversion station (10) is used for transversely moving the box girder outer mold (17) after the lifting beam is stripped to a return production line and adjusting the size of the box girder outer mold;
the template cleaning station (11) is used for polishing and cleaning the box girder external mold (17) which is transversely moved;
the release agent spraying station (12) is used for spraying a water-soluble release agent on the longitudinally moved box girder external mold (17);
the inspection transverse moving station (13) is used for carrying out various inspections on the longitudinally moved box girder outer mold (17), and transversely moving the box girder outer mold into a production line after the inspection transverse moving station is qualified;
the concrete produced by the concrete production station (14) is directly conveyed to the concrete pouring and vibrating station (5) by the concrete pouring and vibrating station (5) through a conveying pump (15) and a horizontal spreader (16);
the steel bar binding and hoisting station (2) loads the bound steel bars into a box girder outer mold (17) on the template mounting station (4) through a gantry crane (18);
the internal mold storage station (3) is driven to enter the box girder external mold (17) through a gear, and the central lines of the two stations are required to be kept consistent;
the box girder outer mold (17) is a steel template, the box girder is transported by adopting an electric wheel set to integrally move a rail, and the advancing process and the position control are automatic control and remote control command.
The conversion station (10) and the inspection traverse station (12) form a square closed loop circuit on a non-linear production line, and a square production line production process of the prefabricated box girder with small occupied area is formed on the premise of ensuring each process and technology.
A production line and a production process for high-speed railway precast box girders comprise the following steps:
at a steel bar processing station (1), steel bar numerical control processing equipment is used for blanking and processing the steel bars, and meanwhile, the processed and qualified semi-finished steel bars are transported to a steel bar binding and hoisting station (2) by a forklift;
hoisting reinforcing steel bars to be bound to a fixed clamping fixture of a reinforcing steel bar binding and hoisting station (2) by using a gantry crane (18) matched manually, and performing binding operation, after the binding is detected to be qualified, hoisting a reinforcing cage to a box girder outer mold (17) on a template installation station (4) by using two gantry cranes (18) matched through a special hoisting tool;
hoisting and installing two box girder end molds at two end parts of a box girder outer mold (17) by using a gantry crane (18), and automatically dragging the box girder inner mold to a reinforcement cage core part in the box girder outer mold (17) from an inner mold storage station (3) through a self-propelled inner mold bracket and supporting and installing;
after the box girder external mold (17) to be poured reaches the concrete pouring vibration station (5), a concrete production station (14) arranged beside produces high-performance concrete, the high-performance concrete is conveyed into the box girder external mold (17) to be poured directly through a conveying pump (15) and a concrete conveying pipeline to two horizontal distributing machines (16), and simultaneously, the vibration rod is adopted to carry out vibration and pouring at the same time until the concrete construction is finished;
step 5, concrete steam curing;
after the box girder external mold (17) with the poured concrete reaches the curing station (6), the periphery is sealed, and steam curing is carried out according to the processes of standing, heating, keeping constant temperature and cooling;
step 6, removing the template;
removing the inner mold and the end mold of the box girder outer mold (17) with the steam-cured strength reaching at a mold removing station (7), and removing the fixing bolts of various embedded parts;
the box girder prestressed duct in the longitudinally moved box girder external mold (17) is penetrated, and intelligent tensioning equipment is adopted to perform pre-primary tensioning operation of the prefabricated box girder;
lifting the box girder in the longitudinally moved box girder outer mold (17) out of the template by a tire type girder lifting machine (19) and transporting the box girder to a girder storage area where the box girder can be stored;
9, transferring and cleaning the outer die of the box girder;
transversely moving the box girder outer mold (17) after the lifting beam is demoulded to a return production line conversion station (10) through a wheel set track, adjusting the size of the box girder outer mold (17), longitudinally moving the box girder outer mold (17) to a template cleaning station (11) to clean residues on the surface of a template and polishing the residues;
spraying a water-soluble release agent on the longitudinally moved box girder external mold (17) at a release agent spraying station (12);
and (3) carrying out the inspection of the quality and the appearance size of the template on the longitudinally moved box girder outer mold (17) at an inspection transverse moving station (13), after the template is qualified, transversely moving the box girder outer mold (17) to a template mounting station (4) of a production line, and circularly and repeatedly carrying out the operations from the step (1) to the step (11) to form the high-speed railway prefabricated box girder production line process.
The invention has the beneficial effects that:
the invention provides a high-speed railway precast box girder production line and a production process thereof, which form a set of factory-like and square-shaped production line production process according to the production requirement and the installation process requirement of the high-speed railway precast box girder, greatly save the production cost and the investment cost, and improve the production quality of the box girder precast member.
Drawings
FIG. 1 is a schematic view of a production line of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in figure 1, a prefabricated case roof beam production line of high-speed railway and production technology, reinforcing bar processing station (1), reinforcement hoist and mount station (2), centre form deposit station (3), template installation station (4), concrete placement vibration station (5), maintenance station (6), form removal station (7), stretch-draw station (8), handle station (9), converting station (10), template clearance station (11), release agent spraying station (12), inspection sideslip station (13) arrange according to order in proper order and constitute the production line: a concrete production station (14) is arranged beside the concrete pouring and vibrating station (5);
the steel bar processing station (1) is used for storing raw materials of the steel bars and manufacturing and processing the steel bars;
the steel bar binding and hoisting station (2) is used for integrally binding and hoisting the steel bar top and bottom plates;
the internal mold storage station (3) is used for cleaning and storing the internal mold of the box girder;
the template mounting station (4) is used for placing the box girder external mold (17) and hoisting the reinforcing steel bars into the mold, and mounting the internal mold and the end mold;
the concrete pouring and vibrating station (5) is used for pouring and vibrating concrete by the longitudinally moved box girder outer die (17);
the curing station (6) is used for carrying out steam curing on the box girder outer mold (17) which is transferred after the concrete is poured;
the mould removing station (7) is used for removing the inner mould and the end mould of the box girder outer mould (17) with the strength reaching the steam curing completion strength;
the tensioning station (8) is used for penetrating and pre-tensioning the longitudinally transferred box girder external mold (17);
the lifting beam station (9) is used for lifting the box beam which is longitudinally moved and is stretched in the box beam outer mold (17), and transporting away and storing the box beam;
the conversion station (10) is used for transversely moving the box girder outer mold (17) after the lifting beam is stripped to a return production line and adjusting the size of the box girder outer mold;
the template cleaning station (11) is used for polishing and cleaning the box girder external mold (17) which is transversely moved;
the release agent spraying station (12) is used for spraying a water-soluble release agent on the longitudinally moved box girder external mold (17);
the inspection transverse moving station (13) is used for carrying out various inspections on the longitudinally moved box girder outer mold (17), and transversely moving the box girder outer mold into a production line after the inspection transverse moving station is qualified;
the concrete produced by the concrete production station (14) is directly conveyed to the concrete pouring and vibrating station (5) by the concrete pouring and vibrating station (5) through a conveying pump (15) and a horizontal spreader (16);
the steel bar binding and hoisting station (2) loads the bound steel bars into a box girder outer mold (17) on the template mounting station (4) through a gantry crane (18);
the internal mold storage station (3) is driven to enter the box girder external mold (17) through a gear, and the central lines of the two stations are required to be kept consistent;
the box girder outer mold (17) is a steel template, the box girder is transported by adopting an electric wheel set to integrally move a rail, and the advancing process and the position control are automatic control and remote control command.
The conversion station (10) and the inspection traverse station (12) form a square closed loop circuit on a non-linear production line, and a square production line production process of the prefabricated box girder with small occupied area is formed on the premise of ensuring each process and technology.
A production line and a production process for high-speed railway precast box girders comprise the following steps:
at a steel bar processing station (1), steel bar numerical control processing equipment is used for blanking and processing the steel bars, and meanwhile, the processed and qualified semi-finished steel bars are transported to a steel bar binding and hoisting station (2) by a forklift;
hoisting reinforcing steel bars to be bound to a fixed clamping fixture of a reinforcing steel bar binding and hoisting station (2) by using a gantry crane (18) matched manually, and performing binding operation, after the binding is detected to be qualified, hoisting a reinforcing cage to a box girder outer mold (17) on a template installation station (4) by using two gantry cranes (18) matched through a special hoisting tool;
hoisting and installing two box girder end molds at two end parts of a box girder outer mold (17) by using a gantry crane (18), and automatically dragging the box girder inner mold to a reinforcement cage core part in the box girder outer mold (17) from an inner mold storage station (3) through a self-propelled inner mold bracket and supporting and installing;
after the box girder external mold (17) to be poured reaches the concrete pouring vibration station (5), a concrete production station (14) arranged beside produces high-performance concrete, the high-performance concrete is conveyed into the box girder external mold (17) to be poured directly through a conveying pump (15) and a concrete conveying pipeline to two horizontal distributing machines (16), and simultaneously, the vibration rod is adopted to carry out vibration and pouring at the same time until the concrete construction is finished;
step 5, concrete steam curing;
after the box girder external mold (17) with the poured concrete reaches the curing station (6), the periphery is sealed, and steam curing is carried out according to the processes of standing, heating, keeping constant temperature and cooling;
step 6, removing the template;
removing the inner mold and the end mold of the box girder outer mold (17) with the steam-cured strength reaching at a mold removing station (7), and removing the fixing bolts of various embedded parts;
the box girder prestressed duct in the longitudinally moved box girder external mold (17) is penetrated, and intelligent tensioning equipment is adopted to perform pre-primary tensioning operation of the prefabricated box girder;
lifting the box girder in the longitudinally moved box girder outer mold (17) out of the template by a tire type girder lifting machine (19) and transporting the box girder to a girder storage area where the box girder can be stored;
9, transferring and cleaning the outer die of the box girder;
transversely moving the box girder outer mold (17) after the lifting beam is demoulded to a return production line conversion station (10) through a wheel set track, adjusting the size of the box girder outer mold (17), longitudinally moving the box girder outer mold (17) to a template cleaning station (11) to clean residues on the surface of a template and polishing the residues;
spraying a water-soluble release agent on the longitudinally moved box girder external mold (17) at a release agent spraying station (12);
and (3) carrying out the inspection of the quality and the appearance size of the template on the longitudinally moved box girder outer mold (17) at an inspection transverse moving station (13), after the template is qualified, transversely moving the box girder outer mold (17) to a template mounting station (4) of a production line, and circularly and repeatedly carrying out the operations from the step (1) to the step (11) to form the high-speed railway prefabricated box girder production line process.
Claims (3)
1. A high-speed railway precast box girder production line and a production process are characterized in that a steel bar processing station (1), a steel bar binding and hoisting station (2), an internal mold storage station (3), a template installation station (4), a concrete pouring and vibrating station (5), a maintenance station (6), a template removal station (7), a tensioning station (8), a lifting beam station (9), a conversion station (10), a template cleaning station (11), a release agent spraying station (12) and a detection transverse moving station (13) are sequentially arranged to form the production line; a concrete production station (14) is arranged beside the concrete pouring and vibrating station (5);
the steel bar processing station (1) is used for storing raw materials of the steel bars and manufacturing and processing the steel bars;
the steel bar binding and hoisting station (2) is used for integrally binding and hoisting the steel bar top and bottom plates;
the internal mold storage station (3) is used for cleaning and storing the internal mold of the box girder;
the template mounting station (4) is used for placing the box girder external mold (17) and hoisting the reinforcing steel bars into the mold, and mounting the internal mold and the end mold;
the concrete pouring and vibrating station (5) is used for pouring and vibrating concrete by the longitudinally moved box girder outer die (17);
the curing station (6) is used for carrying out steam curing on the box girder outer mold (17) which is transferred after the concrete is poured;
the mould removing station (7) is used for removing the inner mould and the end mould of the box girder outer mould (17) with the strength reaching the steam curing completion strength;
the tensioning station (8) is used for penetrating and pre-tensioning the longitudinally transferred box girder external mold (17);
the lifting beam station (9) is used for lifting the box beam which is longitudinally moved and is stretched in the box beam outer mold (17), and transporting away and storing the box beam;
the conversion station (10) is used for transversely moving the box girder outer mold (17) after the lifting beam is stripped to a return production line and adjusting the size of the box girder outer mold;
the template cleaning station (11) is used for polishing and cleaning the box girder external mold (17) which is transversely moved;
the release agent spraying station (12) is used for spraying a water-soluble release agent on the longitudinally moved box girder external mold (17);
the inspection transverse moving station (13) is used for carrying out various inspections on the longitudinally moved box girder outer mold (17), and transversely moving the box girder outer mold into a production line after the inspection transverse moving station is qualified;
the concrete produced by the concrete production station (14) is directly conveyed to the concrete pouring and vibrating station (5) by the concrete pouring and vibrating station (5) through a conveying pump (15) and a horizontal spreader (16);
the steel bar binding and hoisting station (2) loads the bound steel bars into a box girder outer mold (17) on the template mounting station (4) through a gantry crane (18);
the internal mold storage station (3) is driven to enter the box girder external mold (17) through a gear, and the central lines of the two stations are required to be kept consistent;
the box girder outer mold (17) is a steel template, the box girder is transported by adopting an electric wheel set to integrally move a rail, and the advancing process and the position control are automatic control and remote control command.
2. The production line and the production process of the precast box girders for the high-speed railway according to claim 1 are characterized in that the conversion station (10) and the inspection traverse station (12) form a square closed loop line on a non-linear production line, and form a square production line production process of the precast box girders with small floor area on the premise of ensuring all processes and processes.
3. A high-speed railway precast box girder production line and a production process are characterized by comprising the following steps:
step 1, processing a steel bar;
at a steel bar processing station (1), steel bar numerical control processing equipment is used for blanking and processing the steel bars, and meanwhile, the processed and qualified semi-finished steel bars are transported to a steel bar binding and hoisting station (2) by a forklift;
step 2, binding and hoisting the steel bars;
hoisting reinforcing steel bars to be bound to a fixed clamping fixture of a reinforcing steel bar binding and hoisting station (2) by using a gantry crane (18) matched manually, and performing binding operation, after the binding is detected to be qualified, hoisting a reinforcing cage to a box girder outer mold (17) on a template installation station (4) by using two gantry cranes (18) matched through a special hoisting tool;
step 3, installing a template;
hoisting and installing two box girder end molds at two end parts of a box girder outer mold (17) by using a gantry crane (18), and automatically dragging the box girder inner mold to a reinforcement cage core part in the box girder outer mold (17) from an inner mold storage station (3) through a self-propelled inner mold bracket and supporting and installing;
step 4, pouring and vibrating concrete;
after the box girder external mold (17) to be poured reaches the concrete pouring vibration station (5), a concrete production station (14) arranged beside produces high-performance concrete, the high-performance concrete is conveyed into the box girder external mold (17) to be poured directly through a conveying pump (15) and a concrete conveying pipeline to two horizontal distributing machines (16), and simultaneously, the vibration rod is adopted to carry out vibration and pouring at the same time until the concrete construction is finished;
step 5, concrete steam curing;
after the box girder external mold (17) with the poured concrete reaches the curing station (6), the periphery is sealed, and steam curing is carried out according to the processes of standing, heating, keeping constant temperature and cooling;
step 6, removing the template;
removing the inner mold and the end mold of the box girder outer mold (17) with the steam-cured strength reaching at a mold removing station (7), and removing the fixing bolts of various embedded parts;
step 7, pre-primary tensioning;
the box girder prestressed duct in the longitudinally moved box girder external mold (17) is penetrated, and intelligent tensioning equipment is adopted to perform pre-primary tensioning operation of the prefabricated box girder;
step 8, lifting the beam and stripping the mold;
lifting the box girder in the longitudinally moved box girder outer mold (17) out of the template by a tire type girder lifting machine (19) and transporting the box girder to a girder storage area where the box girder can be stored;
9, transferring and cleaning the outer die of the box girder;
transversely moving the box girder outer mold (17) after the lifting beam is demoulded to a return production line conversion station (10) through a wheel set track, adjusting the size of the box girder outer mold (17), longitudinally moving the box girder outer mold (17) to a template cleaning station (11) to clean residues on the surface of a template and polishing the residues;
step 10, spraying a release agent;
spraying a water-soluble release agent on the longitudinally moved box girder external mold (17) at a release agent spraying station (12);
step 11, inspecting and transversely moving the outer die;
and (3) carrying out the inspection of the quality and the appearance size of the template on the longitudinally moved box girder outer mold (17) at an inspection transverse moving station (13), after the template is qualified, transversely moving the box girder outer mold (17) to a template mounting station (4) of a production line, and circularly and repeatedly carrying out the operations from the step (1) to the step (11) to form the high-speed railway prefabricated box girder production line process.
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CN113681704A (en) * | 2021-08-26 | 2021-11-23 | 成都锐龙机械制造有限公司 | Beam prefabricating device and control system applying same |
CN113601695A (en) * | 2021-09-09 | 2021-11-05 | 德州海天机电科技有限公司 | Prefabricated component production line |
CN113878703A (en) * | 2021-10-11 | 2022-01-04 | 北京好运达智创科技有限公司 | Bent cap production line system |
CN113878703B (en) * | 2021-10-11 | 2022-12-09 | 北京好运达智创科技有限公司 | Bent cap production line system |
CN114193607A (en) * | 2021-12-16 | 2022-03-18 | 中铁三局集团广东建设工程有限公司 | Portable reinforcement mould of prefabricated box girder |
CN114311268A (en) * | 2021-12-31 | 2022-04-12 | 中交二航局第四工程有限公司安徽混凝土装配化构件分公司 | Automatic segmental beam pouring process |
CN116373098A (en) * | 2023-04-19 | 2023-07-04 | 武汉建工集团股份有限公司 | Integrated preparation device and method for recycled concrete member |
CN116373098B (en) * | 2023-04-19 | 2024-05-10 | 武汉建工集团股份有限公司 | Integrated preparation device and method for recycled concrete member |
CN117124430A (en) * | 2023-10-27 | 2023-11-28 | 湖南恒运建筑科技发展有限公司 | Prefabricated equipment is used in processing of haydite concrete prefabricated wallboard |
CN117124430B (en) * | 2023-10-27 | 2024-01-05 | 湖南恒运建筑科技发展有限公司 | Prefabricated equipment is used in processing of haydite concrete prefabricated wallboard |
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