A three-dimensional circulation production line and production process for large prefabricated concrete components

Abstract

The present invention discloses a three-dimensional circulation production line for large-scale precast concrete components, including an underground PC component circulation production line, an above-ground steel bar processing and binding area, a component flipping area, a component storage area and an aerial hoisting area. The underground PC component circulation production line includes a first multifunctional transfer area, a first pouring area, a component steaming area, a second pouring area, and a second multifunctional transfer area, which are multiple assembly line layouts; the first multifunctional transfer area and the second multifunctional transfer area are located at both ends of the underground PC component circulation production line, which are steel bar cage hoisting, component demoulding, and component transfer operation areas, and are provided with vertical and horizontal tracks, and components can enter the first and second pouring areas through the first and second multifunctional transfer areas. The three-dimensional circulation production line and production process of large-scale precast concrete components set by the present invention comprehensively utilize underground and above-ground space, do not need to build a separate above-ground factory building, have low investment cost, reduce floor space, have compact layout, and three-dimensional production.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated components, and in particular to a three-dimensional circulation production line and a production process for large-scale prefabricated concrete components. Background Art

[0002] As the construction of urban underground municipal infrastructure occupies the main application direction in future prefabricated construction, for some construction projects, there are factors such as insufficient construction sites and high construction period requirements. It is not convenient to produce oversized and special-shaped components on the construction site, and prefabricated prefabricated components have gradually become the preferred solution. However, in the process of factory production of large prefabricated components, pouring, maintenance, and stacking still require a large site area, and the requirements for the plant space and layout are relatively high; secondly, the curing and molding process of concrete components has a long cycle, and the dependence on molds for a long time also restricts the standardized production of assembly lines. How to reduce the site area and save space, reduce plant investment, improve the turnover efficiency of molds, shorten the processing cycle of components, and improve production capacity and production efficiency have become key issues that need to be urgently solved in the production of prefabricated concrete components.

[0003] Compared with the following prior patent application scheme, application number 201710293999.7, it adopts a high-rise three-dimensional production system. During the process, it is necessary to use a high-rise structure on the ground to work in coordination with vertical transportation elevators and transport vehicles. Compared with the existing common component production line technology, its factory cost is relatively high and requires a lot of help from external facilities. More importantly, it cannot meet the production requirements for oversized, special-shaped, and overweight precast concrete components. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a three-dimensional circulation production line and production process for large-scale precast concrete components, which solves the current problems.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a large-scale precast concrete component three-dimensional circulation production line, including an underground PC component circulation production line, an above-ground steel bar processing and binding area, a component turning area, a component storage area and an aerial hoisting area, the underground PC component circulation production line includes a first multi-functional transfer area, a first pouring area, a component steaming area, a second pouring area, and a second multi-functional transfer area, which is a multi-line layout;

[0006] The first multifunctional transfer area and the second multifunctional transfer area are located at both ends of the underground PC component circulation production line. They are the operation areas for steel cage hoisting, component removal from the bottom mold, and component transfer operation. They are equipped with vertical and horizontal tracks. Components can enter the first and second casting areas through the first and second multifunctional transfer areas.

[0007] The first pouring area and the second pouring area are adjacent to the first multifunctional transfer area and the second multifunctional transfer area respectively. They are underground tunnel type. Ground pouring openings are reserved above the pouring areas on both sides. They are poured through an automatic pouring hopper. A first channel door is provided on one side of the pouring opening, and component side molds are fixed on the walls on both sides of the pouring area.

[0008] Furthermore, a high-frequency vibrator is installed on the outside of the side mold of the component, and a laser positioning device is set at both ends of the side mold. When the bottom mold of the component moves to the pouring position, the laser positioning device determines the relative position of the side mold and the bottom mold, and then the two side molds are opened and closed through the control system. The control system can preferably use a servo system to control the servo motor or a hydraulic transmission system to control the opening and closing of the side mold.

[0009] Furthermore, the component steam curing area includes an in-situ high-temperature steam curing area and an adjustable temperature and moisture-keeping curing area;

[0010] The in-situ high-temperature steam curing area is the pouring area, which is equipped with a steam device, a steam delivery pipe, a steam nozzle, a water collection groove, and the second and third channel doors;

[0011] The temperature-adjustable and moisturizing maintenance area is equipped with a water collection groove, a temperature intelligent control system, a spray device and an automatic control host, a third channel door, and a spray water delivery pipeline. The spray water can be used as secondary recycled water underground. The temperature-adjustable and moisturizing maintenance area adopts a "temperature intelligent control system" to dynamically control the temperature in the maintenance area based on the temperature sensors reserved in the core and surface of the components.

[0012] Furthermore, the above-ground steel bar processing and binding area is located above the component steaming and curing area; the aerial hoisting area is the working area of ​​a large gantry crane, which spans the entire underground PC component circulation production line and can slide longitudinally along the production line to move the hoisted components during production; the component turning area and component storage area are both located on the ground, which is convenient for the later transportation of components.

[0013] Furthermore, the first channel door is a remote-controlled foldable liftable door, which is remotely controlled by a PLC control system, with a track arranged at the bottom, lifting rods arranged at both ends of the track, and a lifting device, which can pull the track and the first channel door up and down to adjust the size of the in-situ high-temperature steaming area;

[0014] The second and third channel doors are remote-controlled rolling shutter doors, wherein the second channel door is a double-layer stretched aluminum plate with a thick polyurethane insulation layer in the interlayer, and the third channel door is a single-layer aluminum alloy.

[0015] Furthermore, the longitudinal section of the water collecting groove has a certain slope, and the spray water and steam water can be recycled to the external water collecting well. The spray head in the spray device is rotatable and can achieve 180° spraying in the upper and lower and left and right range.

[0016] Furthermore, the first multifunctional transfer area and the second multifunctional transfer area are open underground and are provided with collection wells to facilitate the collection of rainwater, surface water, steam condensate water, etc.

[0017] A production process of a three-dimensional circulating production line for large precast concrete components, characterized in that it includes a reciprocating single production line production process and a circulating multiple production line production process, and the main process of the reciprocating single production line process is:

[0018] Step 1), steel bar binding: the incoming steel bars are processed and bound in the ground steel bar processing and binding area, and then reserved for hoisting components;

[0019] Step 2), hoisting and installing embedded parts: the mold platform and the bottom mold are vertically and horizontally tracked, and the steel cage is hoisted by the gantry crane in the aerial hoisting area to the first multi-functional transfer area or the second multi-functional transfer area, and is placed in the bottom mold for installation and fixation. After the fixation is completed, the embedded parts are installed;

[0020] Step 3), mold and component positioning: the steel cage enters the first pouring area from the first multifunctional transfer area. When the component bottom mold moves to the pouring position, the laser positioning device determines the relative position of the side mold and the bottom mold, and the two side molds are opened and closed through the control system. The mold positioning error range is ±1mm;

[0021] Step 4), pouring and vibrating: concrete is poured using a concrete placing machine; a high-frequency vibrator is installed outside the mold to assist in pouring and compacting;

[0022] Step 5), component maintenance: after pouring is completed, the first channel door covers the ground pouring port, the second and third channel doors are automatically lowered by remote control, the steam device starts to work, heats the circulating water, and the steam delivery pipe delivers steam to the steam nozzle to spray high-temperature water vapor, and the component is subjected to high-temperature steam maintenance. The side mold can be removed in 6 to 10 hours at the fastest; after the side mold is removed, the third channel door is remotely raised, and the component enters the adjustable temperature and moisturizing maintenance area for dynamic temperature control maintenance. In the initial stage of maintenance, the spray water delivery pipeline transports heated water to the spray device for spraying hot water maintenance. The intelligent temperature control system is used to monitor the temperature sensor in real time to ensure that the temperature difference between the inside and outside of the component is not greater than 20°. In the middle and late stages, the component is naturally cooled and then sprayed with cold water for maintenance;

[0023] Step 6), after the component has been cured for 18h to 24h with adjustable temperature and moisture retention, it is hoisted to the component flipping area by a gantry crane in the second multifunctional transfer area, and the component is flipped 180° and placed in the ground component storage area for storage. After cleaning the bottom mold, it can be reversed through the original production line channel through steel bar binding, hoisting and installation of embedded parts, mold and component positioning, and then cast and vibrated in the second pouring area, and steamed at high temperature in situ, and then cured in the adjustable temperature and moisture retention curing area, and then to the first multifunctional transfer area, waiting for subsequent hoisting, flipping, and stacking; or it can directly return to the first multifunctional transfer area through the original production line channel to wait for subsequent production.

[0024] Furthermore, the main production steps of the circulating multi-production line production process are the same as those of the reciprocating single production line process, except that, in step (6), after the bottom mold is cleaned, the original production line can continue to produce in the forward direction, and the bottom mold is directly returned through other production line channels, or reversely carried out through other production lines to carry out steel bar binding, hoisting and installation of embedded parts, mold and component positioning, and then cast and vibrate in the second casting area, steam-cured in situ, and then cured in the adjustable temperature and moisture maintenance area to the first multi-functional transfer area, waiting for subsequent hoisting, turning and stacking.

[0025] Beneficial Effects

[0026] The invention provides a three-dimensional circulation production line and a production process for large-scale prefabricated concrete components.

[0027] Compared with the prior art, it has the following beneficial effects:

[0028] 1. The large-scale precast concrete component three-dimensional circulation production line and production process set up in the present invention comprehensively utilize underground and above-ground space, and there is no need to build a separate above-ground factory building, so the investment cost is low, the floor space is reduced, the layout is compact, and three-dimensional production is carried out; the underground PC component circulation production line is located underground, and the production is not affected by the climate and can be constructed around the clock.

[0029] 2. The side mold is fixed, the bottom mold is recycled, and one set of side molds corresponds to multiple sets of bottom molds. This improves the turnover efficiency of the bottom mold and effectively reduces the mold cost. The side mold can be removed after the component is steamed in situ for 6 to 10 hours, and it can be hoisted and stored for 24 to 36 hours, which optimizes the operation of the mold assembly line and improves the production efficiency of the component.

[0030] 3. Set up an in-situ high-temperature steam curing warehouse, which can reduce disturbance of components and allow direct curing on the production line. The transportation distance is short, no special transportation equipment is required, and the cost is low. The lifting rod traction track and the first channel door are set up to move up and down, and the size of the in-situ high-temperature steam curing area can be adjusted to save steam energy. The component steam curing area uses the moisture and heat preservation characteristics of the underground space to create a natural humidity and temperature environment for the maintenance of concrete, which is conducive to energy saving and heat preservation.

[0031] 4. The water collection well is located in the open-air multifunctional transfer area, which can fully collect surface water, rainwater, evaporation water, etc., which is conducive to the recycling and conservation of water resources; the intelligent temperature control system can detect the temperature difference between the inside and outside of the component through sensors to ensure that the temperature difference between the inside and the surface is no more than 20°, thereby preventing cracks on the surface of the component.

[0032] 5. Circular production on multiple production lines facilitates the simultaneous production of multiple components, which can effectively shorten the construction period and labor volume, ensure production safety, reduce project costs, increase production capacity, and promote the assembly construction and standardized production of prefabricated components. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic longitudinal section diagram of functional divisions of the three-dimensional circulation production line for large precast concrete components of the present invention;

[0034] Figure 2 It is a schematic diagram of the ground pouring port of the present invention;

[0035] Figure 3 It is a schematic diagram of the first and second pouring areas and the component steaming area of ​​the present invention;

[0036] Figure 4 It is a schematic diagram of the side mold of the present invention;

[0037] Figure 5 It is a schematic diagram of the mold opening and closing system of the present invention;

[0038] Figure 6 This is a schematic diagram of the in-situ high temperature steam curing area of ​​the present invention;

[0039] Figure 7 This is a schematic diagram of the temperature-adjustable moisturizing maintenance area of ​​the present invention;

[0040] Figure 8 This is a production process flow chart of a reciprocating single production line of the present invention;

[0041] Fig. 9 This is a production process flow chart of the circulating multiple production lines of the present invention.

[0042] In the figure: underground PC component circulation production line 1, above-ground steel bar processing and binding area 2, component turning area 3, component storage area 4, first multifunctional transfer area 11, first pouring area 12, component steaming area 13, second pouring area 14, second multifunctional transfer area 15, ground pouring port 121, first channel door 122, track 1221, lifting rod 1222, side mold 123, high-frequency vibrator 1231, laser positioning device 1232, control system 1233, adjustable temperature and moisturizing curing area 131, steam delivery pipe 1311, steam nozzle 1312, water collection groove 1313, second channel door 1314, third channel door 1315, spray device 1316, spray water delivery pipeline 1317, temperature sensor 1318, gantry crane 51, water collection well 1301. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1-9 The present invention provides a large-scale precast concrete component three-dimensional circulation production line, including an underground PC component circulation production line 1, an above-ground steel bar processing and binding area 2, a component turning area 3, a component storage area 4 and an aerial hoisting area; wherein the underground PC component circulation production line 1 includes a first multi-functional transfer area 11, a first pouring area 12, a component steaming and curing area 13, a second pouring area 14, and a second multi-functional transfer area 15, which is a multi-line layout;

[0045] The first multifunctional transfer area 11 and the second multifunctional transfer area 15 are located at both ends of the underground PC component circulation production line 1. They are the operation areas for steel cage hoisting, component removal from the bottom mold, and component transfer operation. They are equipped with vertical and horizontal tracks. Components can enter the first and second casting areas 12 and 14 of different production lines through the first and second multifunctional transfer areas 11 and 15 to realize simultaneous operation on both sides of the production line.

[0046] The first pouring area 12 and the second pouring area 14 are adjacent to the first multifunctional transfer area 11 and the second multifunctional transfer area 15 respectively, and are underground tunnel types; ground pouring openings 121 are reserved above the pouring areas on both sides for pouring through automatic pouring hoppers; component side molds 123 are fixed to the walls on both sides of the pouring areas.

[0047] Furthermore, a high-frequency vibrator 1231 is installed on the outside of the component side mold 123, and a laser positioning device 1232 is set at both ends of the side mold 123; when the component bottom mold moves to the pouring position, the laser positioning device 1232 determines the relative position of the side mold 123 and the bottom mold, and then the two side molds and the bottom mold open and close the side molds through the control system 1233. The control system 1233 preferably uses a servo system to control a servo motor or a hydraulic transmission system to control the opening and closing of the side molds.

[0048] Furthermore, the component steam curing area 13 includes an in-situ high-temperature steam curing area and an adjustable temperature and moisture-keeping curing area 131; the pouring areas 12 and 14 are in-situ high-temperature steam curing areas, which are provided with a steam device, a steam delivery pipe 1311, a steam nozzle 1312, a water collection groove 1313, a second channel door 1314, and a third channel door 1315, and a first channel door 122 is provided on one side below the pouring port;

[0049] The temperature-adjustable and moisturizing maintenance area is provided with a water collection groove 1313, a temperature intelligent control system, a spray device 1316 and an automatic control host, a third channel door 1315, and a spray water delivery pipeline 1317. The spray water can be used as underground secondary recycling water, which is energy-saving and environmentally friendly. The temperature-adjustable and moisturizing maintenance area adopts a "temperature intelligent control system" to dynamically control the temperature in the maintenance area according to the temperature sensors 1318 reserved for the core and surface of the component to ensure that the temperature difference between the inside and outside of the concrete component is not more than 20°.

[0050] Furthermore, the ground steel bar processing and binding area 2 is located above the component steaming and curing area 13; the aerial hoisting area is the working area of ​​the large gantry crane 51, which spans the entire underground PC component circulation production line and can slide longitudinally along the production line to move the hoisted components during production; the component turning area 3 and the component storage area 4 are both located on the ground, which is convenient for the later transportation of components.

[0051] Furthermore, the first channel door 122 is a remote-controlled foldable liftable door, located on one side below the pouring port, and is remotely controlled by a PLC control system. A track 1221 is provided below, and lifting rods 1222 are provided at both ends of the track, equipped with a lifting device, which can pull the track and the first channel door up and down, adjust the size of the in-situ high-temperature steaming area, and save energy;

[0052] The second and third channel doors 1314 and 1315 are remote-controlled rolling shutter doors, wherein the second channel door 1314 is a double-layer stretched aluminum plate with a thick polyurethane insulation layer in the interlayer, and the third channel door 1315 is a single-layer aluminum alloy.

[0053] Furthermore, the longitudinal section of the water collection groove 1313 has a certain slope, and the spray water and steam water can be recycled to the external water collection well. The spray head in the spray device is rotatable, which can achieve 180° spraying up and down and left and right, completing the all-round water spraying maintenance of large concrete components.

[0054] Furthermore, the first multifunctional transfer area 11 and the second multifunctional transfer area 15 are open underground and are provided with a collection well 1301 to facilitate the collection of rainwater, surface water, steam condensate, spray water, etc.

[0055] A production process for a three-dimensional circulating production line of large-scale precast concrete components, characterized by comprising a reciprocating single production line production process and a circulating multiple production line production process.

[0056] The main process of the reciprocating single production line is:

[0057] Step 1), steel bar binding: the incoming steel bars are processed and bound in the ground steel bar processing and binding area 2, and then reserved for hoisting components;

[0058] Step 2), hoisting and installing embedded parts: the mold platform and the bottom mold are vertically and horizontally tracked, and the steel cage is hoisted by the gantry crane 51 in the aerial hoisting area to the first multi-functional transfer area 11 or the second multi-functional transfer area 15, and is placed in the bottom mold for installation and fixing. After the fixing is completed, the embedded parts are installed;

[0059] Step 3), positioning of mold and component: the steel cage enters the first pouring area 12 from the first multifunctional transfer area 11. When the bottom mold of the component moves to the pouring position, the laser positioning device 1232 determines the relative position of the side mold 123 and the bottom mold. The two side molds are opened and closed through the control system 1233. The mold positioning error range is ±1mm;

[0060] Step 4), pouring and vibrating: concrete is poured using a concrete placing machine; a high-frequency vibrator 1231 is installed outside the mold, and high-frequency vibration assists in pouring and compacting;

[0061] Step 5), component maintenance: after pouring is completed, the first channel door 122 covers the ground pouring port 121, the second and third channel doors 1314 and 1315 are automatically lowered by remote control, the steam device starts to work, heats the circulating water, and the steam delivery pipe 1311 delivers steam to the steam nozzle 1312 to spray high-temperature water vapor, and the component is subjected to high-temperature steam maintenance. The side mold 123 can be removed in 6 to 10 hours at the fastest; after the side mold 123 is removed, the third channel door 1315 is remotely raised, and the component enters the adjustable temperature and moisturizing maintenance area 131 for dynamic temperature control maintenance. In the initial stage of maintenance, the spray water delivery pipeline 1317 transports heated water to the spray device 1316 for spraying hot water maintenance. The intelligent temperature control system is used to monitor the temperature sensor 1318 in real time to ensure that the temperature difference between the inside and outside of the component is not greater than 20°. In the middle and late stages, the component is naturally cooled and then sprayed with cold water for maintenance;

[0062] Step 6), after the component has been subjected to 18h to 24h of adjustable temperature and moisture maintenance, it is hoisted to the component turning area 3 by the gantry crane 51 in the second multifunctional transfer area 15, and the component is turned 180° and placed in the ground component storage area 4 for storage. After cleaning the bottom mold, it can be reversed through the original production line channel through steel bar binding, hoisting and installation of embedded parts, mold and component positioning, and then poured and vibrated in the second pouring area 14, and steamed at high temperature in situ, and then cured in the adjustable temperature and moisture maintenance area 131, and then to the first multifunctional transfer area 11, waiting for subsequent hoisting, turning, and stacking; or it can directly return to the first multifunctional transfer area 11 through the original production line channel to wait for subsequent production.

[0063] Furthermore, the main production steps of the circulating multi-production line production process are the same as those of the reciprocating single production line process, except that, in step (6), after the bottom mold is cleaned, the original production line can continue to produce in the forward direction, and the bottom mold is directly returned through other production line channels, or reversely carried out through other production lines to carry out steel bar binding, hoisting and installation of embedded parts, mold and component positioning, and then cast and vibrated in the second casting area 14, steamed in situ, and then cured in the adjustable temperature and moisture maintenance area 131, and then to the first multi-functional transfer area 11, waiting for subsequent hoisting, turning and stacking.

[0064] The present invention comprehensively utilizes underground and above-ground space, does not need to build a separate above-ground plant, has a low investment cost, small floor area, compact layout, and three-dimensional production; the underground PC component circulation production line is located underground, which is not affected by the climate and can be constructed around the clock; compared with the traditional PC component production technology, the side molds in the casting area are fixed, the bottom molds are recycled, and one set of side molds corresponds to four sets of bottom molds, which saves molds and improves the turnover efficiency of molds; the side molds can be removed after the components are steamed in situ for 6 to 10 hours, and they can be hoisted and stored for 24 to 36 hours, which optimizes the operation of the mold assembly line; an in-situ high-temperature steaming warehouse is set, and the in-situ steaming has a compact layout, reduces component disturbance, and is subsequently directly maintained on the production line. No specific transfer equipment is required, and the transfer distance is short. The lifting rod traction track and the first channel door are set to rise and fall, and the size of the warehouse in the in-situ high-temperature steaming area can be adjusted to save steam energy. The component steaming area uses the moisture and heat preservation characteristics of the underground space to create a natural humidity and temperature environment for the maintenance of concrete, which is conducive to energy saving and heat preservation. Setting up underground water collection grooves and wells to fully collect surface water, rainwater, etc. is conducive to the recycling and conservation of water resources; multiple production lines are in circular production with a high degree of integration, long-term large-scale specialized production, and obvious output advantages; the production efficiency of the production line can be increased by 2-3 times compared with other similar technologies, the production labor force can be reduced by more than 80%, safe production is effectively guaranteed, 30% energy is saved, and 50% water is saved.

[0065] The circuits and electronic components involved in the present invention are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present invention does not involve improvements to internal structures and methods. It should be noted that the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the inventor will not elaborate on them here.

[0066] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-dimensional circulation production line for large precast concrete components, comprising an underground PC component circulation production line, an above-ground steel bar processing and binding area, a component turning area, a component storage area and an aerial hoisting area, characterized in that: The underground PC component circulation production line includes the first multi-functional transfer area, the first pouring area, the component steaming area, the second pouring area, and the second multi-functional transfer area, which is a multi-line layout; The first multifunctional transfer area and the second multifunctional transfer area are located at both ends of the underground PC component circulation production line. They are the operation areas for steel cage hoisting, component removal from the bottom mold, and component transfer operation. They are equipped with vertical and horizontal tracks. Components can enter the first and second casting areas through the first and second multifunctional transfer areas, so that both sides of the production line can start work at the same time. The first pouring area and the second pouring area are adjacent to the first multifunctional transfer area and the second multifunctional transfer area respectively, and are underground tunnel-type. Ground pouring openings are reserved above the pouring areas on both sides, and pouring is performed through an automatic pouring hopper. A first channel door is provided on one side of the pouring opening, and component side molds are fixed to the walls on both sides of the pouring area; The component steam curing area includes an in-situ high-temperature steam curing area and an adjustable temperature and moisture-keeping curing area; The in-situ high-temperature steam curing area is the pouring area, which is equipped with a steam device, a steam delivery pipe, a steam nozzle, a water collection groove, and the second and third channel doors; The temperature-adjustable and moisturizing maintenance area is equipped with a water collection groove, a temperature intelligent control system, a spray device and an automatic control host, a third channel door, and a spray water delivery pipeline; A high-frequency vibrator is installed outside the side mold of the component, and laser positioning devices are arranged at both ends of the side mold. When the bottom mold of the component moves to the pouring position, the laser positioning device determines the relative position of the side mold and the bottom mold, and the two side molds are opened and closed through the control system, and the control system selects the servo system to control the servo motor; The first channel door is a remote-controlled foldable liftable door, which is remotely controlled by a PLC control system. A track is arranged underneath, and lifting rods are arranged at both ends of the track. A lifting device is provided to pull the track and the first channel door up and down to adjust the size of the warehouse in the in-situ high-temperature steaming area.

2. The three-dimensional circulation production line of large precast concrete components according to claim 1 is characterized by: The spray water can be used as underground secondary recycling water, and the temperature-adjustable and moisturizing maintenance area adopts a "temperature intelligent control system" to dynamically control the temperature in the maintenance area based on the temperature sensors reserved in the core and surface of the components.

3. The large-scale precast concrete component three-dimensional circulation production line according to claim 1 is characterized in that: The above-ground steel bar processing and binding area is located above the component steaming and curing area; the aerial hoisting area is the working area of ​​a large gantry crane, which spans the entire underground PC component circulation production line. During production, it can slide longitudinally along the production line to move and hoist components; the component turning area and component storage area are both located on the ground, which is convenient for the later transportation of components.

4. The three-dimensional circulation production line of large precast concrete components according to claim 1 is characterized by: The second and third channel doors are remote-controlled rolling shutter doors, wherein the second channel door is a double-layer stretched aluminum plate with a thick polyurethane insulation layer in the interlayer, and the third channel door is a single-layer aluminum alloy.

5. The large-scale precast concrete component three-dimensional circulation production line according to claim 1 is characterized by: The longitudinal section of the water collecting groove has a certain slope, and the spray water and steam water can be recycled to the external water collecting well for secondary use. The spray head in the spray device is rotatably arranged, and can realize spraying in a range of 180° up and down and left and right.

6. The large-scale precast concrete component three-dimensional circulation production line according to claim 1 is characterized by: The first multifunctional transfer area and the second multifunctional transfer area are open underground and are equipped with collection wells to collect rainwater, surface water and steam condensate.

7. The production process of the three-dimensional circulation production line for large precast concrete components according to any one of claims 1 to 6, characterized in that: It includes the reciprocating single production line production process and the circulating multiple production line production process. The main process of the reciprocating single production line process is: Step 1), steel bar binding: the incoming steel bars are processed and bound in the ground steel bar processing and binding area, and then reserved for hoisting components; Step 2), hoisting and installing embedded parts: the mold platform and the bottom mold are vertically and horizontally tracked, and the steel cage is hoisted by the gantry crane in the aerial hoisting area to the first multi-functional transfer area or the second multi-functional transfer area, and is placed in the bottom mold for installation and fixation. After the fixation is completed, the embedded parts are installed; Step 3), mold and component positioning: the steel cage enters the first pouring area from the first multifunctional transfer area. When the component bottom mold moves to the pouring position, the laser positioning device determines the relative position of the side mold and the bottom mold, and the two side molds are opened and closed through the control system. The mold positioning error range is ±1mm; Step 4), pouring and vibrating: using a concrete placing machine to pour concrete; installing a high-frequency vibrator on the outside of the mold to assist in pouring and compacting; Step 5), component maintenance: after pouring is completed, the first channel door covers the ground pouring port, the second and third channel doors are automatically lowered by remote control, the steam device starts to work, heats the circulating water, and the steam delivery pipe delivers steam to the steam nozzle to spray high-temperature water vapor, and the component is subjected to high-temperature steam maintenance. The side mold can be removed in 6 to 10 hours at the fastest; after the side mold is removed, the third channel door is remotely raised, and the component enters the adjustable temperature and moisturizing maintenance area for dynamic temperature control maintenance. In the initial stage of maintenance, the spray water delivery pipeline transports heated water to the spray device for spraying hot water maintenance. The intelligent temperature control system is used to monitor the temperature sensor in real time to ensure that the temperature difference between the inside and outside of the component is not greater than 20°. In the middle and late stages, the component is naturally cooled and then sprayed with cold water for maintenance; Step 6), after the component has been cured for 18h to 24h with adjustable temperature and moisture retention, it is hoisted to the component flipping area by a gantry crane in the second multifunctional transfer area, and the component is flipped 180° and placed in the ground component storage area for storage. After cleaning the bottom mold, it can be reversed through the original production line channel through steel bar binding, hoisting and installation of embedded parts, mold and component positioning, and then cast and vibrated in the second pouring area, and steamed at high temperature in situ, and then cured in the adjustable temperature and moisture retention curing area, and then to the first multifunctional transfer area, waiting for subsequent hoisting, flipping, and stacking; or it can directly return to the first multifunctional transfer area through the original production line channel to wait for subsequent production.

8. The production process of a three-dimensional circulation production line for large precast concrete components according to claim 7, characterized in that: The main production steps of the circulating multi-production line production process are the same as those of the reciprocating single production line process, except that, in step (6), after the bottom mold is cleaned, the original production line continues to produce in the forward direction, and the bottom mold is directly returned through other production line channels, or reversely carried out through other production lines to tie steel bars, hoist and install embedded parts, and position the mold and components. After that, it is cast and vibrated in the second casting area, steamed in situ, and then cured in the adjustable temperature and moisture maintenance area, and then to the first multi-functional transfer area to wait for subsequent hoisting, turning and stacking.

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