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The steel structure design branch of civil bar strives to build wechat tumunao and join the provincial and municipal exchange group ▼ Click to join the member ▼ source: Luban alliance of construction engineering figure 1 Jinan CSCEC green building precast concrete component production plant CSCEC Green Building Industrial Park (Jinan) Co., Ltd.
was established in 2017, It is invested and constructed by China Construction Eighth Engineering Bureau Co., Ltd., and the first Construction Co., Ltd.
of China Construction Eighth Engineering Bureau is responsible for operation and management.
The company takes “research and development of green building products” as the main direction, and its main business is the in-depth design, production and processing of precast concrete components.
It has developed a series of decorative products such as color concrete, transparent concrete and image concrete, as well as new products such as imitation brick hanging board and integrated heat preservation and decoration hanging board.
The company has completed about 300000 cubic meters of supply of prefabricated components and about 150 service projects.
Case application scenario and technical product features – key points of technical scheme the case systematically studies the intelligent equipment, information technology and manufacturing process for prefabricated component production and manufacturing, introduces and develops a variety of intelligent production equipment and auxiliary equipment, develops an integrated workstation for prefabricated component production and manufacturing, and establishes a system integrating data acquisition, process transmission The intelligent factory management platform of comprehensive management has developed automatic reinforcement processing equipment system, concrete curing equipment system and concrete production and transportation equipment system.
The case includes 6 precast component production lines and 2 material processing lines, including 3 precast component automatic production lines, 3 fixed formwork production lines, 1 reinforcement automatic processing line and 1 concrete processing line.
The intelligence and automation of the whole production cycle of precast concrete components are realized through intelligent production equipment.
Figure 2 key technologies and innovation points of prefabricated component production line 2 1 A smart factory information platform has been developed, which integrates the functions of Internet collaboration, QR code, data collection and big data processing, and can greatly improve the efficiency of information transmission and work collaboration.
Figure 3 intelligent factory information platform 2 A complete set of prefabricated component production equipment has been developed, and a variety of intelligent automation equipment have been developed.
Through collaborative linkage, an intelligent automatic production system for prefabricated component production has been formed.
The equipment of prefabricated component production line mainly includes: (1) intelligent movable formwork system.
The automatic assembly line is introduced, and the mold platform is equipped with an alarm system, which can run along the track and warn the safety situation.
(2) Mobile vibrating platform.
After the concrete component is poured, it needs to be fully vibrated.
The traditional vibrator is prone to the problems of uneven vibration, insufficient or too long vibration time, resulting in unstable quality.
The R & D and application of mobile vibration platform can be interspersed on each fixed formwork along the track to assist vibration, with controllable time, controllable amplitude and stable quality.
(3) Intelligent steam curing kiln.
The curing of concrete components can affect the quality of components.
The traditional maintenance method has a long cycle, requires manual operation, and the maintenance environment is unstable.
The introduction of intelligent steam curing kiln, automatic temperature control, tower storage, stable maintenance quality and greatly shortened maintenance cycle.
(4) Intelligent prestressed tensioning equipment.
The introduction of intelligent prestressed tensioning equipment, digital control can automatically tension according to the set parameters, so as to ensure the stability and reliability of the prestressed tensioning process.
Reinforcement processing equipment mainly includes: (1) automatic straightening and cutting equipment of reinforcement.
The introduction of automatic steel bar straightening and cutting equipment can quickly and accurately straighten and cut steel bars and place them in bundles.
(2) Automatic welding equipment for reinforcement mesh.
In order to solve the problems of slow manual binding speed and unstable accuracy of reinforcement mesh, automatic welding equipment of reinforcement mesh is introduced to replace binding with welding, so as to improve the welding speed and accuracy of mesh.
(3) Automatic welding production equipment for truss reinforcement.
The structure of laminated plate truss reinforcement for floor slab is complex, and it is difficult to meet the requirements by manual processing.
The introduction of automatic welding production equipment for truss reinforcement, setting parameters on the graphical interface and automatic processing of finished products meet the application requirements, with high efficiency and good quality.
Concrete equipment mainly includes: (1) mixing plant.
DMPC convection planetary mixer is introduced, which can completely cover the bottom of the mixing tank every 5S after feeding to reduce dead corners.
The concrete mixing is more uniform, which ensures the unity of the apparent color of the precast component concrete to the greatest extent, with a daily output of 2000m ³， It can meet the concrete demand when the factory is operating at full load.
(2) Storage bin.
High level bin mode is adopted to reduce the use of loader.
(3) Dust removal equipment.
The storage bin is equipped with dust removal equipment to directly absorb the dust into the dust collector, so as to achieve the purpose of environmental protection and energy saving.
(4) Concrete transport crane.
The transportation crane runs on two circular closed steel rails, which can transport the concrete to each production line in the plant and realize the goal of raw material transportation automation.
(5) Automatic concrete distribution and vibrating equipment.
Automatic distributing machine is adopted for concrete pouring.
The concrete is distributed in different grids and areas and vibrated by vibrating table, which speeds up the production pace and improves the production efficiency and component quality.
3.
The quality inspection system of prefabricated components is developed.
In the production process of prefabricated components, if the cooperation between disciplines in the construction drawing stage is not in place, the refinement of deepening design is not enough, and the production process is wrong, it will lead to the reserved holes on the laminated plate, the missing embedded parts or the deviation of the position.
The application of prefabricated component quality detection technology and system can greatly reduce the error rate and improve the quality of prefabricated components.
Figure 4.
Three application scenarios of prefabricated component quality inspection system.
The production line is applicable to the production and manufacturing process in the field of prefabricated building concrete prefabricated components.
It can realize the “machine substitution” of some processes, reduce labor, improve the degree of factory information management and control, and improve the manufacturing quality of prefabricated components.
Case implementation – basic information of the case the factory is located in Zhangqiu District, Jinan City and was officially put into operation in May 2018..
