Green low-carbon foam concrete steam curing device and curing method thereof

Abstract

The application discloses a kind of green low-carbon foam concrete steam curing device and its curing method, it is related to concrete curing technical field, to solve the existing concrete curing device needs artificial in turn with concrete code is placed on display rack, high labor cost, and steam curing when concrete is placed on display rack upside down, because gas float principle, it is easy to occur that curing chamber upper portion temperature is higher than lower portion temperature, lead to the uneven situation of steam curing occurs.The inlet and outlet section is provided at both ends of the curing chamber, a box door is installed on the outer wall of one end of the inlet and outlet section.The lifting frame is installed inside the inlet and outlet section, the lifting frame includes a horizontal section and a vertical section, the vertical section is provided with two vertical sections, and the two vertical sections are arranged below the two ends of the horizontal section, a first ball screw is installed inside each of the two vertical sections, a sliding table is installed on the first ball screw, and the sliding table is in transmission connection with the first ball screw.

Description

Technical Field

[0001] This invention relates to the field of foamed concrete curing technology, specifically to a green and low-carbon foamed concrete steam curing device and its curing method. Background Technology

[0002] Foamed concrete is a new type of microporous lightweight, green, and low-carbon material. It features lightweight, self-supporting, self-sealing, adjustable density and strength, convenient construction, and thermal insulation properties. It is widely used in embankment construction for soft soil sections, widened embankments, frost-heavy embankments in cold regions, structural top load reduction, bridge abutment backfilling, backfilling of embedded pipelines, cavity backfilling, rapid landslide rescue, and thermal insulation of various pipelines. After pouring, foamed concrete gradually hardens due to cement hydration. Hydration requires appropriate temperature and humidity conditions. In hot, dry climates, if not properly cured, the water in the foamed concrete evaporates too quickly, leading to dehydration. This prevents the cement particles, which have already formed a gel, from fully hydrating and transforming into stable crystals, resulting in insufficient bonding strength. Furthermore, premature evaporation of water before the foamed concrete has reached sufficient strength can cause significant shrinkage deformation, leading to drying shrinkage cracks and even penetrating cracks.

[0003] An existing foamed concrete curing device, such as the one mentioned in announcement number CN209718130U, is titled "A Concrete Curing Chamber," which relates to the technical field of foamed concrete curing. It aims to solve the problems of long humidification and heating times and uneven humidification and heating in existing foamed concrete curing chambers. The device includes a curing chamber containing display shelves for placing foamed concrete and a heating and humidification mechanism. Each display shelf has multiple display layers, and the shelves are arranged in rows or columns. The heating and humidification mechanism is located between the display shelves and includes a partition and nozzles on the side of the partition facing the display shelves. An air chamber is provided within the partition, and the nozzles are connected to the air chamber. A steam inlet pipe and a hot air pipe are also connected to the partition, both connected to the air chamber, with their other ends extending outside the chamber and connected to a steam generator and a hot air blower, respectively.

[0004] Existing foamed concrete curing equipment requires manual stacking of concrete on display racks, resulting in high labor costs. Furthermore, during steam curing, the foamed concrete is placed vertically on the display racks, and due to the principle of gas rising, the temperature at the top of the curing chamber is easily higher than that at the bottom, leading to uneven steam curing. To address this, we provide a green and low-carbon foamed concrete steam curing device and its curing method. Summary of the Invention

[0005] The purpose of this invention is to provide a green and low-carbon foamed concrete steam curing device and its curing method, in order to solve the problems mentioned in the background art. Existing foamed concrete curing devices require manual stacking of concrete on display racks, which results in high labor costs. Furthermore, during steam curing, the foamed concrete is placed vertically on the display racks, and due to the principle of gas rising, the temperature at the top of the curing chamber is higher than that at the bottom, leading to uneven steam curing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a green and low-carbon foamed concrete steam curing device, comprising a curing chamber;

[0007] Also includes:

[0008] The inlet and outlet sections are located at both ends of the curing chamber, and a door is installed on the outer wall of one end of the inlet and outlet section;

[0009] A lifting frame is installed inside the inlet / outlet section. The lifting frame includes a horizontal section and two vertical sections, which are located below both ends of the horizontal section. A first ball screw is installed inside each of the two vertical sections. A slide is mounted on the first ball screw, and the slide is drivenly connected to the first ball screw. A belt conveyor is installed between the slides, and a weighing sensor is installed at the bottom of the belt conveyor. One end of the first ball screw passes through and extends into the interior of the horizontal section, and is rotatably connected to the inner wall of the horizontal section via a first bearing. A bearing is installed on the outer wall of one end of the first ball screw. The horizontal section is equipped with a third driven bevel gear. A first servo motor is installed at the middle position of the upper end of the horizontal section. The output end of the first servo motor passes through and extends into the interior of the horizontal section. The first servo motor is equipped with a driving bevel gear. The output end of the first servo motor is connected to the driving bevel gear through a coupling. First driven bevel gears are provided on both sides of the driving bevel gear. A drive shaft is installed on the outer wall of the first driven bevel gear. A second driven bevel gear is installed at one end of the drive shaft. The drive shaft is connected to the third driven bevel gear through the meshing of the second driven bevel gear. Both ends of the outer wall of the drive shaft are connected to the inner wall of the horizontal section through bearing seats.

[0010] A laser length measuring mechanism is installed on one side of the upper end of the belt conveyor, and a third servo motor is installed on the outer wall of one end of the belt conveyor.

[0011] A partition is installed in the middle of the curing chamber. Two mesh belt conveyors are installed on the bottom surface of the curing chamber and the upper surface of the partition. The two mesh belt conveyors are arranged opposite each other. A second servo motor is installed on the outer wall of one end of the mesh belt conveyor and is connected to the mesh belt conveyor for transmission. A first curing chamber is provided below the partition and a second curing chamber is provided above the partition.

[0012] Steam ducts are installed above and below both sides of the curing chamber, and there are four steam ducts in total.

[0013] Preferably, an electrically controlled air inlet valve is installed at the middle position of the outer wall of the steam duct, and a multi-way pipe is installed on the inner wall of the steam duct. The multi-way pipe is equidistant from each other, and one end of the multi-way pipe passes through and extends into the interior of the curing chamber and is equipped with a nozzle. An electrically controlled exhaust valve is installed above both ends of the steam duct.

[0014] Preferably, a transmission door support frame is installed on both sides of the connection between the curing chamber and the inlet / outlet section. A hydraulic cylinder is installed at the middle position of the rear end of the transmission door support frame. The output end of the hydraulic cylinder passes through and extends into the interior of the transmission door support frame and is equipped with a positioning plate. A sealing door is installed on the inner wall of the positioning plate, and one side of the sealing door extends into the interior of the curing chamber.

[0015] Preferably, a sealing groove is provided on the inner wall of the sealing door, a limiting groove is provided at the connection between the curing chamber and the positioning plate, guide grooves are provided at the upper and lower ends of the inner wall of the transmission door support frame, guide blocks are provided at the upper and lower ends of the positioning plate, and the positioning plate is slidably connected to the guide grooves through the guide blocks.

[0016] Preferably, the laser length measuring mechanism includes a first guide rail, a forward lead screw, a reverse lead screw, a first slider, a laser sensor, and a stepper motor. The forward and reverse lead screws are both disposed inside the first guide rail, and one end of the forward lead screw is fixedly connected to the reverse lead screw. A bearing plate is installed at the connection between the forward and reverse lead screws. The stepper motor is installed at one end of the first guide rail, and its output end passes through and extends into the interior of the first guide rail, and is drivenly connected to the other end of the forward lead screw. Two first sliders are provided, and the two first sliders are respectively disposed on the forward and reverse lead screws and are drivenly connected to the forward and reverse lead screws. The laser sensor is installed on the outer wall of the first slider.

[0017] Preferably, a monitoring mechanism is installed on the top of the maintenance chamber and the lower surface of the partition. The monitoring mechanism includes a second guide rail, a transmission chamber, and a fourth servo motor. The transmission chamber is located at one end of the second guide rail. A second ball screw is installed inside the second guide rail. One end of the second ball screw passes through and extends into the interior of the transmission chamber. Both ends of the second ball screw are rotatably connected to the inner walls of the second guide rail and the transmission chamber, respectively, through second bearings. A driven gear is installed on the outer wall of one end of the second ball screw. The fourth servo motor is installed inside the transmission chamber. A driving gear is installed at the output end of the fourth servo motor, and the output end of the fourth servo motor is connected to the driven gear through meshing. A second slider is installed on the second ball screw, and the second slider is connected to the second ball screw through a transmission. A camera is installed at the lower end of the second slider.

[0018] Preferably, a storage chamber is provided below the other end of the second guide rail, and a sealing plate is installed on one side of the camera.

[0019] Preferably, one end of the transmission chamber extends to the outer wall of the curing chamber and is equipped with a heat dissipation plate.

[0020] Preferably, a temperature sensor is provided on the outer wall of the second guide rail, and multiple temperature sensors are provided, which are distributed at equal intervals.

[0021] Preferably, a curing method for a green, low-carbon foamed concrete steam curing device includes the following steps:

[0022] Step 1: Open the door of the inlet and outlet section, keeping the hydraulic cylinder in the closed and sealed state, to expose the inner cavity of the curing chamber;

[0023] Step 2: The staff places the foamed concrete on top of the belt conveyor in the feeding and discharging section. There are two sets of conveyors in the feeding and discharging section, which operate simultaneously. After the foamed concrete is placed, the weighing sensor at the bottom of the belt conveyor can detect it in time and send a signal back to the control terminal. The control terminal drives the laser length measuring mechanism to run. The stepper motor on the laser length measuring mechanism drives the forward and reverse lead screws to rotate, causing the laser sensors on the two sets of first sliders to move towards each other and move closer to the center. Based on the distance difference detected by the two sets of laser sensors, the length of the foamed concrete is measured and a signal is sent back to the control terminal.

[0024] Step 3: After receiving the length of the foamed concrete, the control terminal sends a feedback signal to the belt conveyor and the mesh belt conveyor at the bottom of the curing room, driving the two sets of conveyors to operate in coordination according to the length of the foamed concrete, thus receiving the foamed concrete. This process is repeated. When the total length of foamed concrete received by the control terminal exceeds the total travel length of a single mesh belt conveyor, it will change the conveying mode. Before each operation of the belt conveyor, a feedback signal is sent to the first servo motor on the lifting frame. The bevel gear mechanism on the output end of the first servo motor, in conjunction with the drive shaft and the first ball screw, drives the belt conveyor between the slides to move up to above the partition, connecting with the mesh belt conveyor on the upper layer of the curing room. The control terminal then drives the belt conveyor and the upper mesh belt conveyor to operate according to the length of the foamed concrete, receiving the foamed concrete. After the foamed concrete moves to the mesh belt conveyor, the control terminal continues to send a feedback signal to the first servo motor to reset the belt conveyor, allowing personnel to continue placing foamed concrete until the upper mesh belt conveyor is full.

[0025] Step 4: After the foamed concrete is placed, the hydraulic cylinder is extended by the control terminal, which drives the sealing door in the transmission door support frame to close, thus sealing the inlet and outlet section.

[0026] Step 5: Steam is supplied from the steam generator through the electrically controlled air inlet valve into the steam conduit, and then through the nozzle at the end of the split pipe into the first and second curing chambers for steam curing of the foamed concrete. The temperature during the curing stage is monitored in real time by temperature sensors set in sections for easy control. After each curing is completed, the monitoring mechanism in the curing chamber is driven to run. The fourth servo motor drives the second ball screw to rotate through the meshing of the drive gear and the driven gear. The camera on the second slider on the second ball screw collects image information of the foamed concrete to monitor the curing status.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. In this invention, during material feeding, workers place foamed concrete on top of a belt conveyor in the inlet / outlet section. Two sets of conveyors are installed in the inlet / outlet section, operating simultaneously. After the foamed concrete is placed, a weighing sensor at the bottom of the belt conveyor detects it and sends a signal back to the control terminal. The control terminal then drives a laser length measuring mechanism. A stepper motor on the laser length measuring mechanism drives the forward and reverse lead screws to rotate, causing the laser sensors on the two sets of first sliders to move towards each other and converge towards the center. Based on the distance difference detected by the two sets of laser sensors, the length of the foamed concrete is measured and sent back to the control terminal. Upon receiving the length of the foamed concrete, the control terminal sends a signal back to the belt conveyor and the mesh belt conveyor at the bottom of the curing chamber, driving the two conveyors to operate in coordination according to the length of the foamed concrete, thus receiving the concrete. This process is repeated until the control terminal receives a total of [amount missing]. When the total length of the foamed concrete exceeds the total travel length of a single mesh belt conveyor, the conveying mode changes. Before each operation of the belt conveyor, a feedback signal is sent to the first servo motor on the lifting frame. The bevel gear mechanism on the output end of the first servo motor, in conjunction with the drive shaft and the first ball screw, drives the belt conveyor between the slides to move up to above the partition, where it docks with the mesh belt conveyor on the upper layer of the curing chamber. Based on the length of the foamed concrete, the belt conveyor and the upper mesh belt conveyor are driven to run and receive the foamed concrete. After the foamed concrete moves to the mesh belt conveyor, the control terminal continues to send a feedback signal to the first servo motor to reset the belt conveyor, allowing personnel to continue placing foamed concrete until the upper mesh belt conveyor is full. The entire process has low labor consumption, significantly improving material feeding efficiency and solving the problem of high labor costs in existing foamed concrete curing devices that require manual stacking of concrete on display shelves.

[0029] 2. By using a partition to divide the curing chamber into two independent cavities, during steam curing, the hydraulic cylinder at the connection between the material inlet / outlet section and the curing chamber is extended, closing the sealing door and achieving a sealed chamber. At this time, the supplied steam can only flow in a single layer, making the temperature more uniform. This solves the problem that in existing devices, when foamed concrete is placed vertically on the display rack, the temperature at the top of the curing chamber is higher than the temperature at the bottom due to the principle of gas rising, which easily leads to uneven steam curing. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a partial structural diagram of the lifting frame of the present invention;

[0032] Figure 3 This is a partial structural diagram of the laser length measuring mechanism of the present invention;

[0033] Figure 4This is a schematic diagram of the connection structure between the horizontal and vertical segments of the present invention;

[0034] Figure 5 This is a partial structural diagram of the sealing door of the present invention;

[0035] Figure 6 This is a schematic diagram of the internal structure of the curing chamber of the present invention.

[0036] Figure 7 This is a schematic diagram of the internal structure of the curing chamber on the side of the present invention;

[0037] Figure 8 This is a schematic diagram of the internal structure of the monitoring mechanism of the present invention;

[0038] In the diagram: 1. Curing chamber; 2. Feeding / discharging section; 3. Lifting frame; 301. Horizontal section; 302. Vertical section; 4. First servo motor; 5. Box door; 6. Transmission door support frame; 7. Hydraulic cylinder; 8. Limiting groove; 9. Positioning plate; 10. Guide block; 11. Guide groove; 12. Steam duct; 13. Diverter pipe; 14. Electrically controlled air inlet valve; 15. Second servo motor; 16. Electrically controlled exhaust valve; 17. Heat sink; 18. First ball screw; 19. Slide table; 20. Belt conveyor; 21. Third servo motor; 22. Laser length measuring mechanism; 221. First guide rail; 222. Forward screw; 223. Reverse screw; 224. Bearing plate; 225. First slider; 226. Laser sensor; 22 7. Stepper motor; 23. Coupling; 24. Driving bevel gear; 25. First driven bevel gear; 26. Drive shaft; 27. Second driven bevel gear; 28. Bearing housing; 29. ​​Third driven bevel gear; 30. First bearing; 31. Sealing door; 311. Sealing groove; 32. Partition; 33. First curing chamber; 34. Second curing chamber; 35. Mesh belt conveyor; 36. Nozzle; 37. Monitoring mechanism; 371. Second guide rail; 372. Transmission chamber; 373. Storage chamber; 374. Second ball screw; 375. Second bearing; 376. Driven gear; 377. Driving gear; 378. Second slider; 379. Camera; 380. Sealing plate; 38. Temperature sensor; 39. Fourth servo motor. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0040] Please see Figure 1-8 The present invention provides an embodiment of a green and low-carbon foamed concrete steam curing device, comprising a curing chamber 1;

[0041] Also includes:

[0042] The inlet and outlet section 2 is located at both ends of the curing chamber 1, and a door 5 is installed on the outer wall of one end of the inlet and outlet section 2.

[0043] A lifting frame 3 is installed inside the inlet / outlet section 2. The lifting frame 3 includes a horizontal section 301 and two vertical sections 302. The two vertical sections 302 are located below both ends of the horizontal section 301. A first ball screw 18 is installed inside each of the two vertical sections 302. A slide table 19 is installed on the first ball screw 18 and is drivenly connected to the first ball screw 18. A belt conveyor 20 is installed between the slide tables 19, and a weighing sensor is installed at the bottom of the belt conveyor 20. One end of the first ball screw 18 passes through and extends into the interior of the horizontal section 301, and is rotatably connected to the inner wall of the horizontal section 301 through a first bearing 30. The outer wall of one end of the first ball screw 18... A third driven bevel gear 29 is installed on the upper part. A first servo motor 4 is installed at the middle position of the upper end of the horizontal section 301. The output end of the first servo motor 4 passes through and extends into the interior of the horizontal section 301. The first servo motor 4 is equipped with an active bevel gear 24. The output end of the first servo motor 4 is connected to the active bevel gear 24 through a coupling 23. A first driven bevel gear 25 is provided on both sides of the active bevel gear 24. A drive shaft 26 is installed on the outer wall of the first driven bevel gear 25. A second driven bevel gear 27 is installed on one end of the drive shaft 26. The drive shaft 26 is connected to the third driven bevel gear 29 through the meshing of the second driven bevel gear 27. Both ends of the outer wall of the drive shaft 26 are connected to the inner wall of the horizontal section 301 through bearing seats 28.

[0044] A laser length measuring mechanism 22 is installed on one side of the upper end of the belt conveyor 20, and a third servo motor 21 is installed on the outer wall of one end of the belt conveyor 20.

[0045] The partition 32 is installed in the middle of the curing chamber 1. Two mesh belt conveyors 35 are installed on the bottom surface of the curing chamber 1 and the upper surface of the partition 32. The two mesh belt conveyors 35 are arranged opposite each other. A second servo motor 15 is installed on the outer wall of one end of the mesh belt conveyor 35 and is connected to the mesh belt conveyor 35 for transmission. A first curing chamber 33 is provided below the partition 32 and a second curing chamber 34 is provided above the partition 32.

[0046] Steam ducts 12 are installed above and below both sides of the curing chamber 1, and there are four steam ducts 12.

[0047] Please see Figure 1 and Figure 6An electrically controlled air inlet valve 14 is installed at the middle position of the outer wall of the steam duct 12. A branch pipe 13 is installed on the inner wall of the steam duct 12. Multiple branch pipes 13 are provided and are distributed at equal intervals. One end of the branch pipe 13 passes through and extends into the interior of the curing chamber 1 and is equipped with a nozzle 36. Electrically controlled exhaust valves 16 are provided above both ends of the steam duct 12. The electrically controlled air inlet valve 14 is connected to the steam generator and is used to supply steam to the steam duct 12.

[0048] Please see Figure 1 and Figure 5 Both sides of the connection between the curing chamber 1 and the inlet / outlet section 2 are equipped with transmission door support frames 6. A hydraulic cylinder 7 is installed at the middle position of the rear end of the transmission door support frame 6. The output end of the hydraulic cylinder 7 passes through and extends into the interior of the transmission door support frame 6, and a positioning plate 9 is installed thereon. A sealing door 31 is installed on the inner wall of the positioning plate 9, and one side of the sealing door 31 extends into the interior of the curing chamber 1. The hydraulic cylinder 7 controls the opening and closing of the sealing door 31. When the sealing door 31 is closed, the curing chamber 1 is sealed, ensuring the efficiency of steam curing and reducing heat loss.

[0049] Please see Figure 5 A sealing groove 311 is provided on the inner wall of the sealing door 31. A limit groove 8 is provided at the connection between the curing chamber 1 and the positioning plate 9. Guide grooves 11 are provided at the upper and lower ends of the inner wall of the transmission door support frame 6. Guide blocks 10 are provided at the upper and lower ends of the positioning plate 9. The positioning plate 9 is slidably connected to the guide groove 11 through the guide block 10. When the hydraulic cylinder 7 drives the sealing door 31 to move, the positioning plate 9 is slidably connected to the guide groove 11 through the guide block 10, which plays an auxiliary guiding role and improves the movement of the sealing door 31.

[0050] Please see Figure 2 and Figure 3The laser length measuring mechanism 22 includes a first guide rail 221, a forward lead screw 222, a reverse lead screw 223, a first slider 225, a laser sensor 226, and a stepper motor 227. Both the forward lead screw 222 and the reverse lead screw 223 are located inside the first guide rail 221, with one end of the forward lead screw 222 fixedly connected to the reverse lead screw 223. A bearing plate 224 is installed at the connection between the forward lead screw 222 and the reverse lead screw 223. The stepper motor 227 is installed at one end of the first guide rail 221, and its output end extends through and into the interior of the first guide rail 221, and is connected to the forward lead screw 222. The other end is connected by a transmission. There are two first sliders 225, which are respectively mounted on the forward lead screw 222 and the reverse lead screw 223 and are connected to the forward lead screw 222 and the reverse lead screw 223. The laser sensor 226 is mounted on the outer wall of the first slider 225. The stepper motor 227 on the laser length measuring mechanism 22 drives the forward lead screw 222 and the reverse lead screw 223 to rotate, so that the laser sensors 226 on the two sets of first sliders 225 move towards each other and move closer to the center. Based on the distance difference detected by the two sets of laser sensors 226, the length of the foam concrete is measured.

[0051] Please see Figure 7 and Figure 8 Monitoring mechanisms 37 are installed on the top of the curing chamber 1 and the lower surface of the partition 32. Each monitoring mechanism 37 includes a second guide rail 371, a transmission chamber 372, and a fourth servo motor 39. The transmission chamber 372 is located at one end of the second guide rail 371. A second ball screw 374 is installed inside the second guide rail 371. One end of the second ball screw 374 passes through and extends into the transmission chamber 372. Both ends of the second ball screw 374 are rotatably connected to the inner walls of the second guide rail 371 and the transmission chamber 372 respectively via second bearings 375. A driven gear 376 is installed on the outer wall of one end of 374. The fourth servo motor 39 is installed inside the transmission chamber 372. The output end of the fourth servo motor 39 is equipped with a driving gear 377, and the output end of the fourth servo motor 39 is connected to the driven gear 376 through the meshing of the driving gear 377. A second slider 378 is installed on the second ball screw 374, and the second slider 378 is connected to the second ball screw 374 through transmission. A camera 379 is installed at the lower end of the second slider 378. The monitoring mechanism 37 is used to monitor the curing status of the foamed concrete.

[0052] Please see Figure 8 A storage chamber 373 is provided below the other end of the second guide rail 371. A sealing plate 380 is installed on one side of the camera 379. The storage chamber 373 is used to protect the camera 379 in conjunction with the sealing plate 380 when the camera 379 is not in use.

[0053] Please see Figure 1and Figure 7 One end of the transmission chamber 372 extends to the outer wall of the curing chamber 1 and is equipped with a heat dissipation plate 17, which ensures the heat dissipation effect of the motor in the transmission chamber 372.

[0054] Please see Figure 7 Temperature sensors 38 are provided on the outer wall of the second guide rail 371. Multiple temperature sensors 38 are provided and are equidistantly distributed. The temperature sensors 38 can monitor the temperature in the curing chamber in segments.

[0055] Please see Figure 1-8 A curing method for a green, low-carbon foamed concrete steam curing device includes the following steps:

[0056] Step 1: Open the box door 5 of the material inlet / outlet section 2, keeping the hydraulic cylinder 7 in the closed sealing door 31 state, to expose the inner cavity of the curing chamber 1;

[0057] Step 2: The workers place the foamed concrete on top of the belt conveyor 20 in the inlet / outlet section 2. There are two sets of conveyors in the inlet / outlet section 2, which operate simultaneously. After the foamed concrete is placed, the weighing sensor at the bottom of the belt conveyor 20 can detect it in time and send a signal back to the control terminal. The control terminal drives the laser length measuring mechanism 22 to run. The stepper motor 227 on the laser length measuring mechanism 22 drives the forward lead screw 222 and the reverse lead screw 223 to rotate, so that the laser sensors 226 on the two sets of first sliders 225 move towards each other and move closer to the center. Based on the distance difference detected by the two sets of laser sensors 226, the length of the foamed concrete is measured and a signal is sent back to the control terminal.

[0058] Step 3: After receiving the length of the foamed concrete, the control terminal sends a feedback signal to the belt conveyor 20 and the mesh belt conveyor 35 on the bottom floor of the curing room 1, driving the two sets of conveyors to operate in coordination according to the length of the foamed concrete, thus carrying the foamed concrete. This process repeats until the total length of foamed concrete received by the control terminal exceeds the total travel length of a single mesh belt conveyor 35. Then, it changes the conveying mode. Before each operation of the belt conveyor 20, a feedback signal is sent to the first servo motor 4 on the lifting frame 3, and the bevel gears at the output end of the first servo motor 4... The mechanism, in conjunction with the drive shaft 26 and the first ball screw 18, drives the belt conveyor 20 between the slides 19 to move up to above the partition 32, and docks with the mesh belt conveyor 35 on the upper layer of the curing room 1. It also drives the belt conveyor 20 and the upper mesh belt conveyor 35 to run according to the length of the foamed concrete, receiving the foamed concrete. After the foamed concrete moves to the mesh belt conveyor 35, the control terminal continues to feed back a signal to the first servo motor 4 to reset the belt conveyor 20, so that personnel can continue to place foamed concrete until the upper mesh belt conveyor 35 is full.

[0059] Step 4: After the foamed concrete is placed, the hydraulic cylinder 7 is extended by the control terminal, which drives the sealing door 31 in the transmission door support frame 6 to close, thereby sealing the inlet and outlet section 2.

[0060] Step 5: Steam is supplied from the steam generator through the electrically controlled air inlet valve 14 into the steam conduit 12, and then through the nozzle 36 at the end of the diversion pipe 13 to fill the first curing chamber 33 and the second curing chamber 34 for steam curing of the foamed concrete. The temperature during the curing stage is detected in real time by the segmented temperature sensors 38 for easy control. After each curing is completed, the monitoring mechanism 37 in the curing chamber is driven to run. The fourth servo motor 39 drives the second ball screw 374 to rotate through the meshing of the drive gear 377 and the driven gear 376. The camera 379 on the second slider 378 on the second ball screw 374 collects image information of the foamed concrete to monitor the curing status.

[0061] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A green low-carbon foam concrete steam curing device, comprising a curing chamber (1); characterized in that Further comprising: an inlet and outlet section (2) arranged at both ends of the curing chamber (1), a box door (5) being installed on the outer wall of one end of the inlet and outlet section (2); a lifting frame (3) installed inside the inlet and outlet section (2), the lifting frame (3) comprising a horizontal section (301) and a vertical section (302), the vertical section (302) being provided with two, and the two vertical sections (302) being arranged below both ends of the horizontal section (301), a first ball screw (18) being installed inside both the vertical sections (302), a sliding table (19) being installed on the first ball screw (18), and the sliding table (19) being in transmission connection with the first ball screw (18), a belt conveyor (20) being installed between the sliding tables (19), and a weighing sensor being arranged at the bottom of the belt conveyor (20), one end of the first ball screw (18) penetrating and extending into the inside of the horizontal section (301), and being in rotary connection with the inner wall of the horizontal section (301) through a first bearing (30), a third driven bevel gear (29) being installed on the outer wall of one end of the first ball screw (18), a first servo motor (4) being installed at the middle position of the upper end of the horizontal section (301), the output end of the first servo motor (4) penetrating and extending into the inside of the horizontal section (301), the first servo motor (4) being installed with a driving bevel gear (24), the output end of the first servo motor (4) being in transmission connection with the driving bevel gear (24) through a shaft coupling (23), the driving bevel gear (24) being provided with a first driven bevel gear (25) on both sides, a transmission shaft (26) being installed on the outer wall of the first driven bevel gear (25), the transmission shaft (26) being installed with a second driven bevel gear (27) at one end, and the transmission shaft (26) being in meshing transmission connection with the third driven bevel gear (29) through the second driven bevel gear (27), the outer wall of the transmission shaft (26) being connected with the inner wall of the horizontal section (301) through a bearing seat (28) at both ends; a laser length measuring mechanism (22) installed on one side of the upper end of the belt conveyor (20), a third servo motor (21) being installed on the outer wall of one end of the belt conveyor (20); a partition plate (32) installed at the middle position inside the curing chamber (1), two mesh belt conveyors (35) being installed on the bottom surface of the curing chamber (1) and the upper surface of the partition plate (32), the two mesh belt conveyors (35) being oppositely arranged, a second servo motor (15) being installed on the outer wall of one end of the mesh belt conveyor (35), and the second servo motor (15) being in transmission connection with the mesh belt conveyor (35), a first curing cavity (33) being arranged below the partition plate (32), and a second curing cavity (34) being arranged above the partition plate (32); steam pipes (12) arranged above and below both sides of the curing chamber (1), and the steam pipes (12) being provided with four. The maintenance room (1) and the access section (2) are connected with the transmission door support frame (6) on both sides, the middle position of the rear end of the transmission door support frame (6) is installed with the hydraulic cylinder (7), the output end of the hydraulic cylinder (7) penetrates and extends to the inside of the transmission door support frame (6), and the positioning plate (9) is installed, the sealing door (31) is installed on the inner wall of the positioning plate (9), and one side of the sealing door (31) extends to the inside of the maintenance room (1).

2. The green low-carbon foam concrete steam curing device according to claim 1, characterized in that: The middle position of the outer wall of the steam guide pipe (12) is installed with the electric control air inlet valve (14), the inner wall of the steam guide pipe (12) is installed with the shunt pipe (13), the shunt pipe (13) is provided with a plurality of shunt pipes (13), and the plurality of shunt pipes (13) are equidistantly distributed, one end of the shunt pipe (13) penetrates and extends to the inside of the maintenance room (1), and the nozzle (36) is installed, and the electric control exhaust valve (16) is arranged above the two ends of the steam guide pipe (12).

3. The green low-carbon foam concrete steam curing device according to claim 2, characterized in that: The inner wall of the sealing door (31) is provided with a sealing groove (311), the connecting part of the maintenance room (1) and the positioning plate (9) is provided with a limiting groove (8), the upper end and the lower end of the inner wall of the transmission door support frame (6) are provided with guide grooves (11), the upper end and the lower end of the positioning plate (9) are provided with guide blocks (10), and the positioning plate (9) is connected with the guide grooves (11) through the guide blocks (10).

4. The green low-carbon foam concrete steam curing device according to claim 3, characterized in that: The laser length measuring mechanism (22) comprises a first guide rail (221), a forward screw (222), a reverse screw (223), a first sliding block (225), a laser sensor (226) and a stepping motor (227), the forward screw (222) and the reverse screw (223) are arranged in the first guide rail (221), one end of the forward screw (222) is fixedly connected with the reverse screw (223), a bearing piece (224) is installed at the connecting part of the forward screw (222) and the reverse screw (223), the stepping motor (227) is installed at one end of the first guide rail (221), the output end of the stepping motor (227) penetrates and extends to the inside of the first guide rail (221), and is in transmission connection with the other end of the forward screw (222), the first sliding block (225) is provided with two, the two first sliding blocks (225) are arranged on the forward screw (222) and the reverse screw (223) respectively, and are in transmission connection with the forward screw (222) and the reverse screw (223), the laser sensor (226) is installed on the outer wall of the first sliding block (225).

5. The green low-carbon foam concrete steam curing device according to claim 4, characterized in that: The top end inside the maintenance room (1) and the lower surface of the partition (32) are both provided with a monitoring mechanism (37), the monitoring mechanism (37) comprises a second guide rail (371), a transmission chamber (372) and a fourth servo motor (39), the transmission chamber (372) is arranged at one end of the second guide rail (371), a second ball screw (374) is arranged in the second guide rail (371), one end of the second ball screw (374) penetrates and extends into the transmission chamber (372), the two ends of the second ball screw (374) are rotatably connected with the inner wall of the transmission chamber (372) and the second guide rail (371) through a second bearing (375), a driven gear (376) is arranged on the outer wall of one end of the second ball screw (374), the fourth servo motor (39) is arranged in the transmission chamber (372), a driving gear (377) is arranged on the output end of the fourth servo motor (39), and the output end of the fourth servo motor (39) is in meshing transmission connection with the driven gear (376) through the driving gear (377), a second sliding block (378) is arranged on the second ball screw (374) and in transmission connection with the second ball screw (374), and a camera (379) is arranged on the lower end of the second sliding block (378).

6. The green low-carbon foam concrete steam curing device according to claim 5, characterized in that: A receiving chamber (373) is arranged below the other end of the second guide rail (371), and a sealing plate (380) is arranged on one side of the camera (379).

7. The green low-carbon foam concrete steam curing device according to claim 6, characterized in that: One end of the transmission chamber (372) extends to the outer wall of the maintenance room (1), and a heat dissipation plate (17) is arranged on the outer wall.

8. The green low-carbon foam concrete steam curing device according to claim 7, characterized in that: A temperature sensor (38) is arranged on the outer wall of the second guide rail (371), a plurality of temperature sensors (38) are arranged, and the plurality of temperature sensors (38) are equidistantly distributed.

9. A curing method of a green low-carbon foam concrete steam curing device, based on the green low-carbon foam concrete steam curing device of claim 8, characterized in that, The method comprises the following steps: Step one: open the box door (5) of the feeding and discharging section (2), keep the state of the hydraulic cylinder (7) retracted to seal the door (31), and expose the inner cavity of the maintenance room (1); Step two: the staff places the foam concrete above the belt conveyor (20) in the feeding and discharging section (2), the feeding and discharging section (2) is provided with two groups, and the operation is carried out simultaneously, after the foam concrete is placed, the weighing sensor at the bottom of the belt conveyor (20) can detect in time and feed back a signal to the control terminal, the control terminal drives the laser length measuring mechanism (22) to operate, the stepping motor (227) on the laser length measuring mechanism (22) is driven to rotate the forward screw rod (222) and the reverse screw rod (223), so that the laser sensors (226) on the two groups of first sliding blocks (225) move opposite to each other and move towards the center, based on the distance difference of the two groups of laser sensors (226) detecting the foam concrete, the length of the foam concrete is measured, and a signal is fed back to the control terminal; Step three: After receiving the length of foam concrete, the control terminal feeds back signals to the belt conveyor (20) and the mesh belt conveyor (35) at the bottom of the curing chamber (1), drives the two conveyors to cooperate and run according to the length of foam concrete, and receives foam concrete. In this way, when the total length of foam concrete received by the control terminal is greater than the total length of the single mesh belt conveyor (35), it will change the conveying mode. Before driving the belt conveyor (20) to run each time, feedback signals are fed back to the first servo motor (4) on the lifting frame (3), and the umbrella gear on the output end of the first servo motor (4) cooperates with the transmission shaft (26) and the first ball screw (18) to drive the belt conveyor (20) between the sliding table (19) to move to the top of the partition plate (32), and the mesh belt conveyor (35) on the upper layer of the curing chamber (1) is connected, and the belt conveyor (20) and the mesh belt conveyor (35) on the upper layer are driven to run according to the length of foam concrete, and foam concrete is received. After the foam concrete moves to the mesh belt conveyor (35), the control terminal continues to feed back signals to the first servo motor (4) to reset the belt conveyor (20) to facilitate personnel to continue to place foam concrete until the mesh belt conveyor (35) on the upper layer is full; Step four: After the foam concrete is placed, the control terminal drives the hydraulic cylinder (7) to extend, drives the sealing door (31) in the transmission door support frame (6) to close, and closes the inlet and outlet section (2); Step five: Steam is supplied from the electric control inlet valve (14) to the steam guide pipe (12) by the steam generator, filled to the first curing cavity (33) and the second curing cavity (34) through the end nozzle (36) of the shunt pipe (13), and the foam concrete is steam curing treatment. The temperature is detected in real time by the temperature sensor (38) set in sections, which is convenient for control. After each curing is completed, the monitoring mechanism (37) in the curing cavity is driven to run by the fourth servo motor (39) through the meshing transmission of the driving gear (377) and the driven gear (376), which drives the second ball screw (374) to rotate. The camera (379) on the second sliding block (378) on the second ball screw (374) collects image information of the foam concrete to monitor the curing state.

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