Assembly type bridge floor system production line steam curing device and working method thereof

Abstract

The application discloses an assembled bridge floor system production line steam curing device and a working method thereof, and relates to the technical field of bridge precast member curing, which comprises a steam curing shed, a closed curing mechanism, a steam curing assembly, a moving assembly and a curing detection assembly. The closed curing mechanism forms a sealed space through a curing cover and a coaming, and the steam curing assembly sprays steam through an atomizing head. The moving assembly drives the detection mechanism to move along the surface of the precast member. The curing detection assembly uses a sponge cover to adsorb condensed water and cleans it through a water scraping cover. A water amount detector feeds back data in real time to adjust the steam flow and the spraying angle. The device dynamically controls the temperature rising rate and automatically cleans the condensed water, effectively improves the surface strength of the precast member, avoids cracks, and reduces energy consumption in combination with waste heat recovery technology. The working method comprises the steps of sealed curing, dynamic adjustment, constant temperature curing and controllable cooling, realizes efficient and accurate automatic curing, and significantly improves the quality and production efficiency of the bridge precast member.

Description

Technical Field

[0001] This invention relates to the field of bridge prefabricated component maintenance technology, specifically a steam curing device for prefabricated bridge deck production line and its working method. Background Technology

[0002] Steam curing involves artificially creating specific humidity and temperature conditions to allow freshly poured concrete to harden and gain strength normally or at an accelerated pace. The gradual hardening and strength gain of concrete is a result of cement hydration, which requires certain temperature and humidity conditions. If these conditions are not present in the surrounding environment, artificial curing of the concrete is necessary. In the manufacturing process of precast bridge components, steam curing is a crucial step in improving their strength and durability. Generally, it involves first slowly increasing the temperature and humidity, then maintaining a constant temperature and humidity, and finally cooling down for curing to obtain precast bridge components of good quality.

[0003] However, traditional steam curing technology has problems such as inaccurate control of heating rate and condensation accumulation leading to a decrease in the surface strength of precast components. If water on the surface of precast components is not cleaned in time during the heating process, it is easy to form a weak layer or cracks on the surface of the precast components, affecting the strength of the precast components. Traditional equipment lacks real-time monitoring and feedback mechanisms, making it difficult to optimize curing parameters and affecting the final quality of precast components.

[0004] With the rapid development of prefabricated bridge technology, the demand for efficient and precise steam curing devices is becoming increasingly urgent. Therefore, there is a pressing need for a device that can automatically adjust steam curing parameters, clean condensate in real time, and improve curing quality to meet the high standards required for modern prefabricated bridge components. Summary of the Invention

[0005] This invention provides a steam curing device and its working method for a prefabricated bridge deck production line, which solves the problem in the prior art where the heating rate is not accurately controlled during the heating curing process, resulting in water accumulation on the surface of the prefabricated components that cannot be cleaned in time and thus affects the strength of the bridge prefabricated components.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a steam curing device for a prefabricated bridge deck production line, comprising a steam curing shed, a closed curing mechanism inside the steam curing shed, the closed curing mechanism including a curing cover, closed components on both sides of the curing cover, a temperature sensor and a humidity sensor respectively installed inside the closed components, a steam curing component on the curing cover, the steam outlet of the steam curing component extending into the curing cover and the end of the steam curing component being provided with a curing adjustment component, a moving component inside the curing cover, and curing detection components on both sides of the bottom of the moving component, the curing detection components cleaning and detecting the moisture on the surface of the prefabricated bridge components during the curing process, controlling the steam curing component and the curing adjustment component to adjust the steam curing heating rate, reducing the moisture content on the surface of the prefabricated bridge components during the heating curing process, and maintaining the surface strength of the prefabricated bridge components.

[0007] As a preferred embodiment of the present invention, the steam curing assembly includes a steam generator fixedly mounted on the curing hood, a steam input pipe fixedly connected to the outlet end of the steam generator, the steam input pipe extending into the curing hood and a guide pipe fixedly connected to its end, a throttling valve fixedly connected to one side of the guide pipe, an adjusting shell fixedly connected to one side of the throttling valve, a valve switch fixedly connected inside the adjusting shell, an installation pipe fixedly connected to the bottom of the guide pipe, and a steam distribution pipe fixedly connected to the bottom of the installation pipe.

[0008] As a preferred embodiment of the present invention, the maintenance adjustment assembly includes a spray pump fixedly installed at the outlet end of the steam diversion pipe, a swing tube rotatably connected to both sides of the bottom of the spray pump, an atomizing head fixedly connected to the outlet end of the swing tube, a hose fixedly connected to the outlet end of the swing tube and the spray pump, a first electric adjustment column fixedly connected to the bottom of the spray pump between the swing tubes, an adjustment rod fixedly connected to the telescopic end of the first electric adjustment column, and the end of the adjustment rod hinged to the swing tube.

[0009] As a preferred embodiment of the present invention, the movable component includes an adjusting motor fixedly disposed on the inner side wall of the curing cover, an adjusting screw fixedly connected to the output shaft end of the adjusting motor, an adjusting block threadedly disposed on the adjusting screw, the top of the adjusting block being slidably connected to the curing cover, an electric telescopic column fixedly connected to the bottom of the adjusting block, an installation plate disposed on the telescopic end of the electric telescopic column, and a guide pipe fixedly disposed on the installation plate.

[0010] As a preferred embodiment of the present invention, the maintenance and inspection component includes a fixed frame fixedly disposed on both sides of the bottom of the mounting plate, a hydraulic lifting column fixedly connected to the fixed frame, a bearing plate fixedly connected to the top of the hydraulic lifting column, a transmission shell fixedly connected to both sides of the bottom of the bearing plate, a rotating tube rotatably connected between the transmission shells, a sponge sleeve sleeved on the rotating tube, and a wiper blade fixedly connected to the bottom of the bearing plate on the side of the rotating tube closest to the maintenance adjustment component, the wiper blade contacting the sponge sleeve.

[0011] As a preferred embodiment of the present invention, a drain pipe is fixedly connected to the bottom of the wiper cover, and a detection shell is fixedly connected to the bottom of the drain pipe. A valve rod is slidably connected through the side wall of the drain pipe, and a linkage rod is fixedly connected to the end of the valve rod. A transmission cam is rotatably connected inside the transmission shell, and a movable rod is slidably connected through the side wall of the transmission shell on one side of the transmission cam. A reset member is fixedly connected between the end of the movable rod and the inner wall of the transmission shell. The end of the movable rod is in movable contact with the transmission cam, and the movable rod outside the transmission shell is fixedly connected to the linkage rod.

[0012] As a preferred embodiment of the present invention, a drive motor is fixedly connected inside the transmission housing, and the output shaft of the drive motor is connected to the rotating shaft of the transmission cam. The rotating shaft of the rotating tube extends into the transmission housing and its end is fixedly connected to the rotating shaft of the transmission cam. A perforated plate is fixedly connected inside the detection housing, and a water level detector is fixedly connected to the perforated plate. A collection tank is fixedly connected to the water level detector, and a water valve is provided on the bottom wall of the collection tank. A drain valve is provided at the bottom of the detection housing.

[0013] As a preferred embodiment of the present invention, an integrated treatment box is fixedly connected to the mounting plate, the integrated treatment box is correspondingly connected to the water level detector, a second electric adjustment column is fixedly connected to one side of the integrated treatment box, the telescopic end of the second electric adjustment column is fixedly connected to a trigger rod, and the trigger rod extends into the adjustment housing and is correspondingly set to the valve switch.

[0014] As a preferred embodiment of the present invention, the sealing assembly includes a surrounding plate rotatably disposed on both sides of the curing cover, with mounting components fixedly connected to the surrounding plate and vent valves fixedly disposed on the mounting components. Sealing airbags are provided on both the surrounding plate and the inner wall of the curing cover. Heat exchangers are fixedly connected to both sides of the top of the curing cover, and an exhaust fan is fixedly connected to the side wall of the curing cover. An exhaust pipe is fixedly connected to the exhaust end of the exhaust fan, and the exhaust pipe passes through the heat exchanger and its end is fixedly connected to an exhaust connecting pipe. An inlet pipe is fixedly connected to the liquid inlet end of the steam generator, and the liquid inlet pipe passes through the heat exchanger.

[0015] A working method of a steam curing device for a prefabricated bridge deck production line includes the following steps: S1, sending the prefabricated bridge components into the corresponding curing hoods, then closing the sealing component, adjusting the sealing component to contact the prefabricated bridge component mold shell to achieve sealing, and then starting the steam curing component, the moving component and the curing detection component respectively.

[0016] S2. When the temperature sensor is observed to reach the maximum curing temperature, the steam curing component, the moving component, and the curing detection component are turned off respectively to enter the constant temperature curing stage. After the constant temperature curing is completed, the exhaust cooling function on the sealed component is turned on, the changes in the temperature sensor are observed, and the exhaust cooling rate of the sealed component is adjusted to carry out cooling curing.

[0017] S3. After the cooling and curing process is completed, open the sealed components, remove the precast bridge components that have been cured, and then drain the water recovered from the curing and testing components.

[0018] This invention offers the following advantages: The device monitors environmental parameters in real time through temperature and humidity sensors within a closed curing mechanism. Combined with the coordinated control of the steam curing component and the curing adjustment component, it achieves dynamic adjustment of the heating rate, preventing surface cracking of the precast component due to sudden temperature changes. Simultaneously, the curing detection component, through rolling adsorption of condensate on the precast component surface and intermittent centralized cleaning, significantly reduces water droplet erosion of the precast component surface, ensuring its hardened strength. Furthermore, this intermittent centralized cleaning and detection enables real-time monitoring of the heating rate during the curing process, allowing the curing adjustment component to flexibly adjust the curing heating rate based on the monitoring results. This ensures both curing efficiency and quality, resulting in higher-quality precast components.

[0019] High degree of automation: Moving components drive the detection and adjustment mechanism along the surface of the precast component, achieving full-coverage curing; the integrated treatment box automatically adjusts the steam flow and injection angle based on water volume detection data, improving curing efficiency. Energy-saving and environmentally friendly: The closed design combined with a heat exchanger recovers waste heat, reducing energy consumption and steam waste, resulting in better economic efficiency; and through steps such as sealed curing, dynamic adjustment, constant temperature curing, and controllable cooling, efficient and precise automated curing is achieved, significantly improving the quality and production efficiency of bridge precast components. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a steam curing device for a prefabricated bridge deck production line.

[0021] Figure 2 This is a schematic diagram of the internal curing unit of a steam curing device for a prefabricated bridge deck production line.

[0022] Figure 3 This is a side view of the curing unit in a steam curing device for a prefabricated bridge deck production line.

[0023] Figure 4 This is a schematic diagram of the steam curing mechanism in a steam curing device for a prefabricated bridge deck production line.

[0024] Figure 5 This is a side view of the steam curing mechanism in a steam curing device for a prefabricated bridge deck production line.

[0025] Figure 6 This is a schematic diagram of the structure of a steam curing and testing component in a prefabricated bridge deck production line.

[0026] Figure 7This is a cross-sectional structural diagram of the curing and testing components in a steam curing device for a prefabricated bridge deck production line.

[0027] Figure 8 for Figure 7 A magnified structural diagram of A in the middle.

[0028] Figure 9 This is a schematic diagram of the internal structure of the regulating shell in a steam curing device for a prefabricated bridge deck production line.

[0029] Figure 10 This is a cross-sectional schematic diagram of the curing and regulating component in a steam curing device for a prefabricated bridge deck production line.

[0030] Figure 11 This is a partial structural diagram of the curing and testing components in a steam curing device for a prefabricated bridge deck production line.

[0031] In the diagram: 1. Steam curing shed; 2. Enclosed curing mechanism; 201. Curing cover; 202. Enclosure panel; 203. Mounting component; 204. Ventilation valve; 205. Humidity sensor; 206. Temperature sensor; 207. Sealing airbag; 3. Steam curing assembly; 301. Steam generator; 302. Liquid inlet pipe; 303. Gas outlet connecting pipe; 304. Gas outlet pipe; 305. Steam input pipe; 306. Heat exchanger; 307. Exhaust fan; 308. Steam distribution pipe; 309. Throttling valve; 310. Guide pipe; 311. Mounting pipe; 312. Adjusting shell; 313. Valve switch; 4. Curing adjustment assembly; 401. Spray pump; 402. Hose; 403. Swing pipe; 404. Atomizing head; 405. First electric adjusting column; 406. 5. Adjusting rod; 5. Moving assembly; 501. Adjusting motor; 502. Adjusting screw; 503. Adjusting block; 504. Electric telescopic column; 505. Mounting plate; 6. Maintenance and testing assembly; 601. Transmission housing; 602. Sponge sleeve; 603. Integrated processing box; 604. Second electric adjusting column; 605. Touch rod; 606. Bearing plate; 607. Drive motor; 608. Transmission cam; 609. Movable rod; 610. Reset component; 611. Linkage rod; 612. Wiper cover; 613. Drain pipe; 614. Detection housing; 615. Valve rod; 616. Collection tank; 617. Water level detector; 618. Orifice plate; 619. Drain valve; 620. Water valve; 621. Fixing frame; 622. Hydraulic lifting column; 623. Rotating pipe. Detailed Implementation

[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0033] Please see Figures 1-11 As an embodiment of the present invention, a steam curing device for a prefabricated bridge deck production line includes a steam curing shed 1, a closed curing mechanism 2 is provided inside the steam curing shed 1, the closed curing mechanism 2 includes a curing cover 201, the curing cover 201 is fixedly connected to the steam curing shed 1 by a fixed arm, a sealing component is provided on both sides of the curing cover 201, a temperature sensor 206 and a humidity sensor 205 are respectively provided inside the sealing component, a steam curing component 3 is provided on the curing cover 201, the air outlet of the steam curing component 3 extends into the curing cover 201 and a curing adjustment component 4 is provided at the end, a moving component 5 is provided inside the curing cover 201, and curing detection components 6 are provided on both sides of the bottom of the moving component 5. The curing detection components 6 clean and detect the moisture on the surface of the prefabricated bridge components during the curing process, control the steam curing component 3 and the curing adjustment component 4 to adjust the steam curing heating rate, reduce the moisture on the surface of the prefabricated bridge components during the heating curing process, and maintain the surface strength of the prefabricated bridge components.

[0034] The closed curing mechanism 2 forms a sealed space through the curing cover 201 and the sealing components. The moving component 5 drives the detection mechanism to move along the surface of the precast component, while driving the steam curing component 3 to uniformly spray steam to achieve heating and curing. At the same time, the curing detection component 6 absorbs condensate and records intermittent detection, and provides real-time feedback data to adjust the steam flow rate and spray angle. By dynamically controlling the heating rate and automatically cleaning the condensate, the surface strength of the precast component is effectively improved, and cracks are avoided.

[0035] Please see Figures 3-6 In another embodiment of the present invention, the steam curing assembly 3 includes a steam generator 301 fixedly mounted on the curing hood 201. The steam generator 301 is fixedly connected to a steam input pipe 305 at its outlet end. Multiple steam input pipes 305 are provided. The steam input pipe 305 is a retractable pipe. The steam input pipe 305 extends into the curing hood 201 and is fixedly connected to a guide pipe 310 at its end. A throttling valve 309 is fixedly connected to one side of the guide pipe 310. An adjusting shell 312 is fixedly connected to one side of the throttling valve 309. A valve switch 313 is fixedly connected inside the adjusting shell 312. An installation pipe 311 is fixedly connected to the bottom of the guide pipe 310. A steam distribution pipe 308 is fixedly connected to the bottom of the installation pipe 311.

[0036] See Figure 10The maintenance adjustment component 4 includes a spray pump 401 fixedly installed at the outlet of the steam diversion pipe 308. Swing pipes 403 are rotatably connected to both sides of the bottom of the spray pump 401. An atomizing head 404 is fixedly connected to the outlet of the swing pipes 403. A hose 402 is fixedly connected between the swing pipes 403 and the outlet of the spray pump 401. A first electric adjustment column 405 is fixedly connected to the bottom of the spray pump 401 between the swing pipes 403. An adjustment rod 406 is fixedly connected to the telescopic end of the first electric adjustment column 405. The end of the adjustment rod 406 is hinged to the swing pipe 403. In use, the telescopic extension of the first electric adjustment column 405 can drive the swing pipe 403 to rotate via the adjustment rod 406, thereby adjusting the spray direction of the swing pipe 403 and thus adjusting the duration of steam spray onto the surface of the bridge precast component.

[0037] See Figure 5 The movable component 5 includes an adjusting motor 501 fixedly installed on the inner wall of the curing cover 201. The output shaft end of the adjusting motor 501 is fixedly connected to an adjusting screw 502. An adjusting block 503 is threaded onto the adjusting screw 502. The top of the adjusting block 503 is slidably connected to the curing cover 201. The bottom of the adjusting block 503 is fixedly connected to an electric telescopic column 504. The telescopic end of the electric telescopic column 504 is fixedly provided with an mounting plate 505. The guide pipe 310 is fixedly installed on the mounting plate 505.

[0038] See Figures 6-11 The maintenance and inspection component 6 includes a fixed frame 621 fixedly installed on both sides of the bottom of the mounting plate 505. A hydraulic lifting column 622 is fixedly connected to the fixed frame 621. A bearing plate 606 is fixedly connected to the top of the hydraulic lifting column 622. A transmission shell 601 is fixedly connected to both sides of the bottom of the bearing plate 606. A rotating tube 623 is rotatably connected between the transmission shells 601. A sponge sleeve 602 is sleeved on the rotating tube 623. A wiper 612 is fixedly connected to the bottom of the bearing plate 606 on the side of the rotating tube 623 closest to the maintenance adjustment component 4. The wiper 612 is in contact with the sponge sleeve 602. In actual use, the sponge sleeve 602 has a good water absorption effect. The sponge sleeve 602 on the rotating tube 623 rolls on the precast bridge component. The sponge sleeve 602 can absorb the water droplets condensed on the precast bridge component. Under the action of the wiper 612, the water absorbed on the sponge sleeve 602 can be scraped out and flow into the wiper 612.

[0039] See Figures 7-8The bottom of the wiper cover 612 is fixedly connected to the drain pipe 613, and the bottom of the drain pipe 613 is fixedly connected to the detection shell 614. A valve rod 615 is slidably inserted through the side wall of the drain pipe 613, and a linkage rod 611 is fixedly connected to the end of the valve rod 615. A transmission cam 608 is rotatably connected inside the transmission shell 601. A movable rod 609 is slidably inserted through the side wall of the transmission shell 601 on one side of the transmission cam 608. A reset member 610 is fixedly connected between the end of the movable rod 609 and the inner wall of the transmission shell 601. The end of the movable rod 609 is in movable contact with the transmission cam 608. The movable rod 609 outside the transmission shell 601 is fixedly connected to the linkage rod 611.

[0040] A drive motor 607 is fixedly connected inside the transmission housing 601. The output shaft of the drive motor 607 is connected to the rotating shaft of the transmission cam 608 via a transmission belt. The rotating shaft of the rotating tube 623 extends into the transmission housing 601 and its end is fixedly connected to the rotating shaft of the transmission cam 608. A perforated plate 618 is fixedly connected inside the detection housing 614. A water level detector 617 is fixedly connected to the perforated plate 618. A collection tank 616 is fixedly connected to the water level detector 617. A water valve 620 is provided on the bottom wall of the collection tank 616. A drain valve 619 is provided at the bottom of the detection housing 614. The water level detector 617 can weigh and detect the water in the collection tank 616.

[0041] An integrated treatment box 603 is fixedly connected to the mounting plate 505. The integrated treatment box 603 is correspondingly connected to the water level detector 617. A second electric adjustment column 604 is fixedly connected to one side of the integrated treatment box 603. The telescopic end of the second electric adjustment column 604 is fixedly connected to a trigger rod 605. The trigger rod 605 extends into the adjustment shell 312 and is correspondingly set to the valve switch 313.

[0042] See Figures 2-4 The enclosed assembly includes a surrounding plate 202 rotatably mounted on both sides of the curing cover 201. A rotating motor is fixedly connected to the outside of the curing cover 201 on one side of the rotating shaft of the surrounding plate 202. The output shaft end of the rotating motor is fixedly connected to the rotating shaft of the surrounding plate 202. An installation component 203 is fixedly connected to the surrounding plate 202. A vent valve 204 is fixedly mounted on the installation component 203. Sealing airbags 207 are fixedly mounted on the inner walls of both the surrounding plate 202 and the curing cover 201. Heat exchangers 306 are fixedly connected to both sides of the top of the curing cover 201. An exhaust fan 307 is fixedly connected to the side wall of the curing cover 201. An exhaust pipe 304 is fixedly connected to the exhaust end of the exhaust fan 307. The exhaust pipe 304 passes through the heat exchanger 306 and its end is fixedly connected to an exhaust connecting pipe 303. An inlet pipe 302 is fixedly connected to the liquid inlet end of the steam generator 301. The liquid inlet pipe 302 passes through the heat exchanger 306.

[0043] In the actual implementation of this embodiment, the precast bridge component is placed inside the curing cover 201. Then, the rotating motor drives the surrounding plate 202 to rotate and fit into the curing cover 201. Subsequently, the sealing airbag 207 is inflated to seal the curing space. Then, the steam generator 301 is started to generate steam. Under the action of the spray pump 401, the steam is dispersed through the atomizing head 404 of the swing pipe 403 and sprayed out. Under the action of the high-temperature steam, the temperature and humidity inside the curing cover 201 begin to increase, realizing temperature curing. At the same time, under the action of the adjusting motor 501, the adjusting screw 502 is driven to rotate. The adjusting block 503 on the adjusting screw 502 drives the mounting plate 505 below the electric telescopic column 504 to move. During this process, the electric telescopic column 504 drives the mounting plate 505 to move down, so that the sponge sleeve 602 on the rotating pipe 623 contacts the surface of the precast bridge component. During the aforementioned process, the spray pump 401 moves laterally back and forth with the mounting plate 505 to evenly spray the high-temperature steam onto the curing cover. Inside the curing hood 201, as the high-temperature steam gradually increases, the temperature inside the curing hood 201 begins to rise. However, the surface temperature of the precast bridge component is significantly lower than that of the high-temperature steam before curing. During the curing process, if the high-temperature steam rushes into the curing hood 201 at a relatively high speed and with a large flow rate, the temperature inside the curing hood 201 will inevitably rise at a relatively high speed. In this case, because the surface temperature of the precast bridge component is low, a large amount of high-temperature steam will generate condensation droplets on the surface of the precast bridge component when it comes into contact with it during the curing process. The water droplets dissolve cement particles to form a weak layer, which will significantly reduce the surface strength of the bridge precast component. In severe cases, it may cause cracks to appear on the bridge precast component, thereby affecting the hardening treatment effect of the bridge precast component. However, during the steam curing process, the sponge sleeve 602 on the rotating pipe 623 rolls on the bridge precast component and can absorb the condensation droplets, thereby effectively preventing the water droplets from affecting the bridge precast component and ensuring the surface strength of the bridge precast component.

[0044] While the sponge sleeve 602 rolls and absorbs water, the wiper 612 scrapes the water absorbed by the sponge sleeve 602. The water scraped from the sponge sleeve 602 flows into the wiper 612. Under the action of the drive motor 607, the drive cam 608 actively drives the rotating tube 623 to rotate. During this process, for each rotation of the sponge sleeve 602, the drive cam 608 drives the movable rod 609 to move. The movable rod 609 drives the valve rod 615 to move through the linkage rod 611 at its end. The valve rod 615 moves out of the drain pipe 613, and the scraped water flows into the collection tank 61. Inside the 6th section, the water level detector 617 detects the amount of water absorbed by the sponge sleeve 602 with each rotation. If the detected water volume is too large, it indicates a high steam flow rate and a rapid heating rate, resulting in more water droplets on the surface of the precast bridge components. An excessively rapid heating rate can also affect the hardness formation of the precast bridge components. Conversely, if the detected water volume is small, it indicates a slow heating rate. While this may not significantly affect the hardness of the precast bridge components, it does impact the efficiency of the curing process. Therefore, after the water level detector 617 sends the detected water volume signal to the integrated processing box 603, the integrated processing box 603 processes the water based on the actual water volume. The measured water volume adjusts the heating rate of steam curing. If the water volume is large, the second electric regulating column 604 moves the trigger rod 605, which contacts the valve switch 313 to close the corresponding throttling valve 309, thereby reducing the number of steam supply pipes 310. This reduces the amount of steam supplied per unit time, lowering the rate. Simultaneously, the second electric regulating column 604 moves the regulating rod 406, which in turn rotates the rotating pipe 623, adjusting the steam outflow angle and increasing the contact time between the steam and the precast bridge components. As the duration of steam curing increases, the temperature at which the water comes into contact with the precast bridge components decreases, thus reducing the heating rate. Conversely, if the amount of water being tested is small, the process is reversed to increase the heating rate and ensure the efficiency of steam curing. Overall, this device not only effectively removes water droplets from the precast bridge components, reducing their impact on the surface, but also allows for flexible adjustment of the heating rate based on the testing results. This ensures the surface strength of the precast bridge components during the heating process, prevents cracks, and results in precast bridge components with higher hardness and better quality.

[0045] After the temperature is raised to the standard temperature, constant temperature curing is carried out. After the constant temperature curing is completed, the exhaust fan 307 is started, and the vent valve 204 on the mounting part 203 is opened. The external low temperature gas enters the curing cover 201 to achieve cooling. At the same time, the high temperature steam in the curing cover 201 can be discharged through the heat exchanger 306. The heat exchanger 306 can absorb the residual heat in the steam to achieve heat energy recovery. When it is necessary to fill the steam generator 301 with liquid, the liquid inlet pipe 302 enters the steam generator 301 through the heat exchanger 306 to preheat the liquid and improve the heat energy utilization rate. The overall economic efficiency of the device will be higher. At the same time, if the temperature sensor 206 detects that the cooling rate is too fast, the number of vent valves 204 can be adjusted in time to prevent the hardness of the bridge precast components from being affected by the rapid cooling.

[0046] A working method of a steam curing device for a prefabricated bridge deck production line includes the following steps: S1, sending the prefabricated bridge components into the corresponding curing covers 201, then closing the sealing components, adjusting the sealing components to contact the prefabricated bridge component mold shell to achieve sealing, and then starting the steam curing components 3, the moving components 5 and the curing detection components 6 respectively.

[0047] S2. When the temperature sensor 206 is observed to reach the maximum curing temperature, the steam curing component 3, the moving component 5 and the curing detection component 6 are turned off respectively to enter the constant temperature curing stage. After the constant temperature curing is completed, the exhaust cooling function on the sealing component is turned on, the change of the temperature sensor 206 is observed, and the exhaust cooling rate of the sealing component is adjusted to carry out cooling curing.

[0048] S3. After the cooling and curing process is completed, open the sealed components, remove the precast bridge components that have been cured, and then drain the water recovered in the curing and testing components 6.

[0049] The working method in this embodiment includes steps such as sealing and curing, dynamic adjustment, constant temperature curing and controllable cooling, which realizes efficient and precise automated curing and significantly improves the quality and production efficiency of bridge precast components.

[0050] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steam curing device for a prefabricated bridge deck production line, comprising a steam curing shed (1), characterized in that, The steam curing shed (1) is equipped with a closed curing mechanism (2). The closed curing mechanism (2) includes a curing cover (201). The curing cover (201) is equipped with a sealing component on both sides. The sealing component is equipped with a temperature sensor (206) and a humidity sensor (205) respectively. The curing cover (201) is equipped with a steam curing component (3). The steam outlet of the steam curing component (3) extends into the curing cover (201) and the end is equipped with a curing adjustment component (4). The curing cover (201) is equipped with a moving component (5). The moving component (5) is equipped with a curing detection component (6) on both sides of the bottom of the moving component (5). The curing detection component (6) cleans and detects the moisture on the surface of the precast bridge component during the curing process, controls the steam curing component (3) and the curing adjustment component (4) to adjust the steam curing heating rate, reduces the moisture content on the surface of the precast bridge component during the heating curing process, and maintains the surface strength of the precast bridge component. The steam curing assembly (3) includes a steam generator (301) fixedly installed on the curing hood (201). The steam generator (301) is fixedly connected to a steam input pipe (305) at its outlet. The steam input pipe (305) extends into the curing hood (201) and is fixedly connected to a guide pipe (310) at its end. A throttling valve (309) is fixedly connected to one side of the guide pipe (310). An adjusting shell (312) is fixedly connected to one side of the throttling valve (309). A valve switch (313) is fixedly connected inside the adjusting shell (312). An installation pipe (311) is fixedly connected to the bottom of the guide pipe (310). A steam distribution pipe (308) is fixedly connected to the bottom of the installation pipe (311). The maintenance adjustment assembly (4) includes a spray pump (401) fixedly installed at the outlet of the steam diversion pipe (308). The bottom sides of the spray pump (401) are rotatably connected to the swing pipe (403). The outlet of the swing pipe (403) is fixedly connected to the atomizing head (404). The swing pipe (403) and the outlet of the spray pump (401) are fixedly connected to the hose (402). The bottom of the spray pump (401) between the swing pipe (403) is fixedly connected to the first electric adjustment column (405). The telescopic end of the first electric adjustment column (405) is fixedly connected to the adjustment rod (406). The end of the adjustment rod (406) is hinged to the swing pipe (403).

2. The steam curing device for a prefabricated bridge deck production line according to claim 1, characterized in that, The moving component (5) includes an adjusting motor (501) fixedly installed on the inner wall of the curing cover (201). The output shaft end of the adjusting motor (501) is fixedly connected to an adjusting screw (502). An adjusting block (503) is threaded onto the adjusting screw (502). The top of the adjusting block (503) is slidably connected to the curing cover (201). The bottom of the adjusting block (503) is fixedly connected to an electric telescopic column (504). An installation plate (505) is provided at the telescopic end of the electric telescopic column (504). The guide pipe (310) is fixedly installed on the installation plate (505).

3. The steam curing device for a prefabricated bridge deck production line according to claim 2, characterized in that, The maintenance and inspection component (6) includes a fixed frame (621) fixedly installed on both sides of the bottom of the mounting plate (505). A hydraulic lifting column (622) is fixedly connected to the fixed frame (621). A bearing plate (606) is fixedly connected to the top of the hydraulic lifting column (622). A transmission shell (601) is fixedly connected to both sides of the bottom of the bearing plate (606). A rotating tube (623) is rotatably connected between the transmission shells (601). A sponge sleeve (602) is fitted on the rotating tube (623). A wiper (612) is fixedly connected to the bottom of the bearing plate (606) on the side of the rotating tube (623) closest to the maintenance adjustment component (4). The wiper (612) is in contact with the sponge sleeve (602).

4. The steam curing device for a prefabricated bridge deck production line according to claim 3, characterized in that, The bottom of the wiper cover (612) is fixedly connected to the drain pipe (613), and the bottom of the drain pipe (613) is fixedly connected to the detection shell (614). A valve rod (615) is slidably inserted through the side wall of the drain pipe (613). A linkage rod (611) is fixedly connected to the end of the valve rod (615). A transmission cam (608) is rotatably connected inside the transmission shell (601). A movable rod (609) is slidably inserted through the side wall of the transmission shell (601) on one side of the transmission cam (608). A reset member (610) is fixedly connected between the end of the movable rod (609) and the inner wall of the transmission shell (601). The end of the movable rod (609) is in movable contact with the transmission cam (608). The movable rod (609) outside the transmission shell (601) is fixedly connected to the linkage rod (611).

5. The steam curing device for a prefabricated bridge deck production line according to claim 4, characterized in that, The drive motor (607) is fixedly connected inside the transmission housing (601). The output shaft of the drive motor (607) is connected to the rotating shaft of the transmission cam (608). The rotating shaft of the rotating tube (623) extends into the transmission housing (601) and its end is fixedly connected to the rotating shaft of the transmission cam (608). The orifice plate (618) is fixedly connected inside the detection housing (614). The water level detector (617) is fixedly connected on the orifice plate (618). The water level detector (617) is fixedly connected to the collection tank (616). A water valve (620) is provided on the bottom wall of the collection tank (616). A drain valve (619) is provided at the bottom of the detection housing (614).

6. The steam curing device for a prefabricated bridge deck production line according to claim 5, characterized in that, The integrated processing box (603) is fixedly connected to the mounting plate (505). The integrated processing box (603) is correspondingly connected to the water level detector (617). A second electric adjusting column (604) is fixedly connected to one side of the integrated processing box (603). The telescopic end of the second electric adjusting column (604) is fixedly connected to the trigger rod (605). The trigger rod (605) extends into the adjusting shell (312) and is correspondingly set to the valve switch (313).

7. A steam curing device for a prefabricated bridge deck production line according to claim 6, characterized in that, The enclosed assembly includes a surrounding plate (202) rotatably mounted on both sides of the curing cover (201), a mounting component (203) fixedly connected to the surrounding plate (202), a vent valve (204) fixedly mounted on the mounting component (203), and a sealing airbag (207) provided on the inner wall of both the surrounding plate (202) and the curing cover (201); a heat exchanger (306) is fixedly connected to both sides of the top of the curing cover (201), an exhaust fan (307) is fixedly connected to the side wall of the curing cover (201), an exhaust pipe (304) is fixedly connected to the exhaust end of the exhaust fan (307), the exhaust pipe (304) passes through the heat exchanger (306) and its end is fixedly connected to the exhaust connecting pipe (303); the liquid inlet end of the steam generator (301) is fixedly connected to the liquid inlet pipe (302), and the liquid inlet pipe (302) passes through the heat exchanger (306).

8. The working method of the steam curing device for a prefabricated bridge deck production line as described in claim 1, characterized in that, Includes the following steps: S1. Send the precast bridge components into the corresponding curing cover (201), then close the sealing component, adjust the sealing component to contact the precast bridge component mold shell to achieve sealing, and then start the steam curing component (3), the moving component (5) and the curing detection component (6) respectively. S2. When the temperature sensor (206) is observed to reach the highest curing temperature, the steam curing component (3), the moving component (5) and the curing detection component (6) are turned off respectively, and the constant temperature curing stage is entered. After the constant temperature curing is completed, the exhaust cooling function on the sealed component is turned on, the change of the temperature sensor (206) is observed, the exhaust cooling rate of the sealed component is adjusted, and cooling curing is carried out. S3. After the cooling and curing is completed, open the sealing component, remove the precast bridge component that has been cured, and then drain the water recovered in the curing and testing component (6).

Images