Energy-saving steam-curing equipment for producing building concrete precast slabs

Abstract

The invention relates to the technical field of precast slab steam curing, in particular to energy-saving type building concrete precast slab production steam curing equipment which comprises a bottom plate and further comprises a steam assembly, a curing chamber and a steam curing device, the steam assembly is arranged on the upper side of the bottom plate, and the steam assembly is used for conducting steam curing on a precast slab in the curing chamber; through the steam assembly, steam curing can be carried out on the prefabricated slab in the curing chamber so as to accelerate hardening of concrete, through the detection assembly, the size of the prefabricated slab on the transfer trolley can be detected, and through the adjusting assembly, according to the size of the prefabricated slab detected by the detection assembly, the concrete can be cured. The temperature rise rate and the constant temperature of the steam assembly during steam curing of the prefabricated slab can be automatically adjusted, so that the temperature rise rate and the constant temperature during steam curing are matched with the size of the prefabricated slab, and the situation that the temperature rise rate and the constant temperature are too large or too small, and the steam curing effect on the prefabricated slab is affected is prevented.

Description

Technical Field

[0001] This invention relates to the field of precast concrete steam curing technology, specifically to an energy-saving steam curing equipment for the production of precast concrete slabs for buildings. Background Technology

[0002] Precast concrete slabs are prefabricated components widely used in construction projects. They refer to concrete slabs that are prefabricated in factories or prefabrication yards and then transported to the construction site for installation. During the production and processing of precast concrete slabs, a steam curing process is required to accelerate the hardening of the concrete.

[0003] When steam curing precast concrete slabs, the slabs are typically transported to the curing chamber by a transfer vehicle moving along guide rails. The chamber door is then closed, and the slabs are steam-cured using a steam generator. However, the heating rate and constant temperature during steam curing cannot be automatically adjusted according to the size of the slabs. For large slabs, a high heating rate and constant temperature may cause excessive temperature differences between the inside and outside of the slab, leading to cracking. For small slabs, a low heating rate and constant temperature may affect the strength development of the slab and reduce production efficiency, thus impacting the steam curing effect. Therefore, we propose an energy-saving steam curing equipment for the production of precast concrete slabs. Summary of the Invention

[0004] The purpose of this invention is to provide an energy-saving steam curing equipment for the production of precast concrete slabs, in order to solve the problem mentioned in the background art that the heating rate and constant temperature during steam curing cannot be automatically adjusted according to the size of the precast slab. For large-sized precast slabs, if the heating rate and constant temperature are too high, it may cause excessive temperature difference between the inside and outside of the precast slab, leading to cracking. For small-sized precast slabs, if the heating rate and constant temperature are too low, it may affect the development of the strength of the precast slab and reduce the production efficiency of the precast slab, thereby affecting the steam curing effect of the precast slab.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving steam curing equipment for the production of precast concrete slabs, comprising: a base plate, a curing chamber and a transfer vehicle arranged on the base plate, and a guide rail arranged on the upper side of the base plate;

[0006] It also includes: a steam unit, which is installed on the upper side of the base plate and is used to steam cure the precast slabs in the curing chamber;

[0007] The detection component is located on the upper side of the base plate and is used to detect the size of the precast slab placed on the transfer vehicle.

[0008] The regulating component is located on one side of the curing chamber. The regulating component automatically adjusts the heating rate and constant temperature of the steam component during the steam curing of the precast slab according to the size of the precast slab detected by the detection component.

[0009] The touch control component is located on one side of the curing chamber. The touch control component automatically adjusts the steam jet spacing of the steam component according to the size of the precast slab detected by the detection component.

[0010] The steam assembly includes a steam generator fixed on the upper side of the base plate. The output end of the steam generator is fixed with a connecting pipe. Multiple nozzles are fixedly connected to the side end of the connecting pipe at equal intervals. The nozzles pass through the side end of the curing chamber and are fixed to the curing chamber. A controller is installed on one side of the curing chamber.

[0011] The detection component includes multiple first connecting pipes fixed at equal intervals on the upper side of the transport vehicle. Multiple branch pipes are equally spaced on the upper side of the first connecting pipes. A first sealing gasket is fixed on the upper side of the branch pipes of the first connecting pipes. A second connecting pipe is fixedly connected to one side of the multiple first connecting pipes.

[0012] The base plate has a bracket fixed on the upper side, an air pump fixed on the upper side of the bracket, a third connecting pipe fixed at the output end of the air pump, a plurality of spheres slidably arranged around the inner side of one end of the second connecting pipe at equal intervals, a first spring fixed inside the spheres and fixed to the second connecting pipe, a groove adapted to the spheres being arranged around the outer side of one end of the third connecting pipe at equal intervals, and a second sealing gasket fixed inside one end of the second connecting pipe.

[0013] The curing chamber has a limiting shell fixed on one side, which extends through the curing chamber. A connector is slidably installed inside the limiting shell. A second spring is fixed on one side of the connector and fixed to the limiting shell. A first switch is installed inside the limiting shell. An alarm is installed on one side of the curing chamber. A pressure sensor is installed inside the third connecting pipe. An ultrasonic sensor, a temperature sensor, and a humidity sensor are installed inside the curing chamber.

[0014] The adjustment component includes a mounting shell fixed to one side of the curing chamber. Two fixing blocks are fixed to the top inner side of the mounting shell, and a resistance strip is fixed between the two fixing blocks. A slider is slidably arranged on the outer side of the resistance strip. A mounting block is fixed to the lower side of the slider and slidably arranged with the bottom inner side of the mounting shell. A first electromagnetic block is fixed to the inner side of the mounting shell. The first electromagnetic block is electrically connected to a pressure sensor and an ultrasonic sensor. A first magnetic block that repels the first electromagnetic block is fixed to one side of the mounting block, and a third spring that is fixed to the inner side of the mounting shell is fixed to the other side of the mounting block.

[0015] The mounting block has a connecting shell fixed on one side, a second electromagnetic block fixed inside the connecting shell, a toothed block that attracts the second electromagnetic block slidably on the inside of the connecting shell, a fourth spring that is fixed to the inside of the connecting shell symmetrically fixed on the inside of the toothed block, and a toothed rod fixed to the mounting shell on one side of the toothed block. The toothed block and the toothed rod cooperate with each other.

[0016] The mounting housing has a fourth electromagnetic block fixed inside. A connecting block that slides on the bottom of the mounting housing is provided on one side of the fourth electromagnetic block. A third magnetic block that repels the fourth electromagnetic block is fixed on one side of the connecting block. A sixth spring that is fixed on the other side of the connecting block is fixed to the inside of the mounting housing. The fourth electromagnetic block is electrically connected to the temperature sensor. A second switch is installed on both sides of the mounting block.

[0017] The mounting housing has a third electromagnetic block fixed inside, which is electrically connected to the humidity sensor. A movable block is slidably arranged inside the mounting housing. A second magnetic block that repels the third electromagnetic block is fixed on one side of the movable block, and a fifth spring that is fixed to the inside of the mounting housing is fixed on the other side of the movable block.

[0018] The touch control component includes a mounting bracket set on one side of the mounting block. The mounting bracket is fixed to the mounting shell. Two third switches are installed on one side of the mounting bracket, and a solenoid valve is installed on the nozzle.

[0019] The present invention has at least the following beneficial effects:

[0020] This invention utilizes a steam unit to steam-cur precast slabs in a curing chamber, accelerating the hardening of the concrete. A detection unit monitors the dimensions of the precast slabs on the transport vehicle, and an adjustment unit automatically adjusts the heating rate and constant temperature during steam curing based on the detected dimensions. This ensures the heating rate and constant temperature are appropriate for the slab size, preventing excessively high or low temperatures that could negatively impact the steam curing effect. Furthermore, for larger precast slabs, a relatively larger steam volume can be provided during curing. The heat output enhances the steam curing effect on large-sized precast slabs. Through a touch-sensitive component, the steam jet spacing of the steam assembly can be automatically adjusted based on the size of the precast slab detected by the detection component. For large-sized precast slabs, the steam jet spacing can be relatively large to avoid overheating of the slab surface, ensuring heat penetration into the interior and preventing excessive temperature differences between the inside and outside of the slab. For small-sized precast slabs, the steam jet spacing can be relatively small to ensure uniform coverage of the slab surface, preventing excessive evaporation of surface moisture and cracking, thus further improving the steam curing effect on precast concrete slabs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a cross-sectional structural schematic diagram of the curing chamber of the present invention;

[0023] Figure 3This is a partial cross-sectional view of the curing chamber of the present invention from another perspective;

[0024] Figure 4 This is a partial structural schematic diagram of the detection component on the upper side of the transfer vehicle of the present invention;

[0025] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A;

[0026] Figure 6 This is a partial cross-sectional view of the second and third connecting pipes of the present invention.

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point B;

[0028] Figure 8 This is a partial cross-sectional view of the curing chamber and limiting shell of the present invention located at the connecting part;

[0029] Figure 9 This is a cross-sectional structural diagram of the mounting shell of the present invention;

[0030] Figure 10 This is a structural schematic diagram of the mounting shell of the present invention from another cross-sectional perspective;

[0031] Figure 11 This is a cross-sectional view of the connecting shell and a partial structural schematic diagram of the toothed rod of the present invention;

[0032] Figure 12 This is a schematic diagram of the connection between the mounting block and the moving block of the present invention;

[0033] Figure 13 This is a schematic diagram of the mounting bracket connection structure of the present invention.

[0034] In the diagram: 11. Base plate; 12. Curing chamber; 13. Transfer vehicle; 14. Guide rail; 2. Steam assembly; 21. Steam generator; 22. Connecting pipe; 23. Nozzle; 24. Controller; 3. Detection assembly; 31. First connecting pipe; 32. Second connecting pipe; 33. First sealing gasket; 34. Air pump; 35. Bracket; 36. Third connecting pipe; 37. Ball; 38. First spring; 39. Second sealing gasket; 310. Groove; 311. Limiting shell; 312. Connector; 313. Second spring; 314. First switch; 315. Air pressure sensor; 316. Ultrasonic sensor; 317. Temperature sensor; 318. Warning. 4. Adjustment component; 41. Mounting housing; 42. Fixing block; 43. Resistance bar; 44. Sliding plate; 45. Mounting block; 46. First electromagnetic block; 47. First magnetic block; 48. Third spring; 49. Gear rod; 410. Connecting housing; 411. Second electromagnetic block; 412. Gear block; 413. Fourth spring; 414. Third electromagnetic block; 415. Moving block; 416. Second magnetic block; 417. Fifth spring; 418. Second switch; 419. Fourth electromagnetic block; 420. Connecting block; 421. Third magnetic block; 422. Sixth spring; 5. Touch control component; 51. Mounting bracket; 52. Third switch; 53. Solenoid valve. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] Please see Figures 1 to 12 The present invention provides a technical solution: an energy-saving steam curing equipment for the production of precast concrete slabs for buildings, comprising: a base plate 11, a curing chamber 12 and a transfer vehicle 13 provided on the base plate 11, and a guide rail 14 provided on the upper side of the base plate 11.

[0038] It also includes: steam assembly 2, which is installed on the upper side of the base plate 11 and is used to steam cure the precast slabs in the curing chamber 12;

[0039] The detection component 3 is set on the upper side of the base plate 11 and is used to detect the size of the precast slab placed on the transfer vehicle 13.

[0040] Adjustment component 4 is located on one side of curing chamber 12. Adjustment component 4 automatically adjusts the heating rate and constant temperature of steam component 2 during steam curing of precast slab according to the size of precast slab detected by detection component 3.

[0041] The touch component 5 is located on one side of the curing chamber 12. The touch component 5 automatically adjusts the steam jet spacing of the steam component 2 according to the size of the precast slab detected by the detection component 3.

[0042] When steam curing precast concrete slabs, the slabs are placed on a transfer cart 13. The transfer cart 13 moves along guide rail 14 to transport the slabs into the curing chamber 12. After the chamber door of the curing chamber 12 is closed, the steam assembly 2 steam-cures the slabs inside, accelerating the hardening of the concrete. The detection assembly 3 detects the dimensions of the slabs on the transfer cart 13. The adjustment assembly 4 automatically adjusts the heating rate and constant temperature of the steam assembly 2 based on the detected dimensions, ensuring that the heating rate and constant temperature are appropriate for the slab dimensions and preventing excessively high or low temperatures from affecting the steam curing process. The steam curing effect is improved, and for large-sized precast slabs, the amount of steam during curing can be relatively large to provide more heat and improve the steam curing effect on large-sized precast slabs. Through the touch component 5, the steam spraying distance of the steam component 2 can be automatically adjusted according to the size of the precast slab detected by the detection component 3. For large-sized precast slabs, the steam spraying distance of the steam component 2 can be relatively large to avoid overheating of the precast slab surface and ensure that heat can penetrate into the interior to prevent excessive temperature difference between the inside and outside of the precast slab. For small-sized precast slabs, the steam spraying distance of the steam component 2 can be relatively small to ensure uniform coverage of the precast slab surface and prevent surface moisture from evaporating too quickly and causing cracking, thereby further improving the steam curing effect on concrete precast slabs.

[0043] The steam assembly 2 includes a steam generator 21 fixed on the upper side of the base plate 11. A connecting pipe 22 is fixedly provided at the output end of the steam generator 21. Multiple nozzles 23 are fixedly connected at equal intervals on the side end of the connecting pipe 22. The nozzles 23 pass through the side end of the curing chamber 12 and are fixed to the curing chamber 12. A controller 24 is provided on one side of the curing chamber 12. The controller 24 can control the operation of the steam generator 21 to transport steam through the connecting pipe 22 and spray it into the curing chamber 12 through the nozzles 23 to perform steam curing on the precast slabs in the curing chamber 12.

[0044] The detection component 3 includes multiple first connecting pipes 31 that are fixed at equal intervals on the upper side of the transfer vehicle 13. Multiple branch pipes are equally spaced on the upper side of the first connecting pipes 31. A first sealing gasket 33 is fixed on the upper side of the branch pipes of the first connecting pipes 31. A second connecting pipe 32 is fixedly connected to one side of the multiple first connecting pipes 31. The upper surface of the first sealing gasket 33 is slightly higher than the upper surface of the transfer vehicle 13. After the precast plate is placed on the transfer vehicle 13, the lower surface of the precast plate can press against the first sealing gasket 33 on the multiple branch pipes of the first connecting pipes 31.

[0045] A bracket 35 is fixedly mounted on the upper side of the base plate 11. An air pump 34 is fixedly mounted on the upper side of the bracket 35. A third connecting pipe 36 is fixedly mounted at the output end of the air pump 34. The third connecting pipe 36 passes through one side of the curing chamber 12. The second connecting pipe 32 is positioned corresponding to the third connecting pipe 36. Multiple spheres 37 are slidably arranged around the inner side of one end of the second connecting pipe 32 at equal intervals. A first spring 38 is fixedly mounted inside the spheres 37 and is fixed to the second connecting pipe 32. Correspondingly, the second connecting pipe 32 is provided with an installation groove that matches the spheres 37 at the location of the spheres 37. The spheres 37 are slidably arranged along the installation groove. A groove 310 that matches the spheres 37 is provided around the outer side of one end of the third connecting pipe 36 at equal intervals. A second sealing gasket 39 is fixedly mounted inside one end of the second connecting pipe 32.

[0046] A limiting shell 311 is fixedly installed on one side of the curing chamber 12, penetrating one side of the curing chamber 12. A connector 312 is slidably arranged inside the limiting shell 311. A guide groove adapted to the connector 312 is provided inside the limiting shell 311. The connector 312 is slidably arranged along the guide groove, which can guide and limit the movement of the connector 312. An annular sealing gasket can be provided at the circular sliding connection between the limiting shell 311 and the connector 312. A connector 312 is fixedly installed on one side with a corresponding limiting shell. The second spring 313 is fixed in 311. The first switch 314 is installed inside the limiting shell 311. An alarm 318 is installed on one side of the curing chamber 12. The alarm 318 is electrically connected to the first switch 314. A pressure sensor 315 is installed inside the third connecting pipe 36. An ultrasonic sensor 316, a temperature sensor 317, and a humidity sensor are installed inside the curing chamber 12. The installation of the temperature sensor 317 and the humidity sensor inside the curing chamber 12 is existing publicly available technology.

[0047] When the precast slab is transferred to the curing chamber 12 by the transfer car 13 moving along the guide rail 14, after the transfer car 13 moves to one end of the connecting member 312, the connecting member 312 moves synchronously as the transfer car 13 continues to move, so that the second spring 313 is compressed. When the connecting member 312 moves to press the first switch 314, it means that the transfer car 13 has moved into place. At this time, the controller 24 can control the transfer car 13 to stop moving and will control the alarm 318 to issue an alarm to remind. At this time, one end of the second connecting pipe 32 can be moved to engage with the third connecting pipe 36, and multiple balls 37 can be respectively inserted into multiple grooves 310. The third connecting pipe 36 presses against the second sealing gasket 39, which can improve the stability of the connection between the second connecting pipe 32 and the third connecting pipe 36.

[0048] The controller 24 controls the operation of the air pump 34 to deliver gas into the third connecting pipe 36, and then through the second connecting pipe 32 and the first connecting pipe 31. The gas is then ejected through multiple branch pipes on the first connecting pipe 31. When the bottom area of ​​the precast slab is large, the number of branch pipes on the first connecting pipe 31 covered by the precast slab is greater, resulting in a relatively smaller amount of gas discharged through the branch pipes. Consequently, the pressure detected by the pressure sensor 315 is relatively higher, leading to a relatively larger current in the circuit connected to the pressure sensor 315. Conversely, when the bottom area of ​​the precast slab is small, the amount of gas discharged through the branch pipes is relatively larger, resulting in a relatively smaller amount of gas detected by the pressure sensor 315. The small size of the precast slab results in a relatively small current in the circuit connected to the pressure sensor 315. Through the detection of the ultrasonic sensor 316, when the precast slab thickness is large, the distance detected by the ultrasonic sensor 316 from the upper surface of the precast slab is relatively small, resulting in a relatively large current in the circuit connected to the ultrasonic sensor 316. Conversely, when the precast slab thickness is small, the distance detected by the ultrasonic sensor 316 from the upper surface of the precast slab is relatively large, resulting in a relatively small current in the circuit connected to the ultrasonic sensor 316. Therefore, the size of the precast slab can be detected by the detection component 3, and this method can also be used to detect the size of irregularly shaped precast slabs, thus improving the applicability of the detection component 3.

[0049] Meanwhile, through the detection of the detection component 3, when the gas is discharged through the uncovered branch pipe, the precast slab can also be purged to remove dust, debris and other impurities from the surface of the precast slab, which can improve the cleanliness of the surface of the precast slab, help the subsequent steam to contact the precast slab more effectively, reduce the risk of cracks and improve the curing effect. A filter screen can be fixed inside the upper side of the branch pipe on the first connecting pipe 31 to prevent dust and other impurities from entering the first connecting pipe 31.

[0050] The adjustment assembly 4 includes a mounting shell 41 fixed to one side of the curing chamber 12. Two fixing blocks 42 are fixed to the top inner side of the mounting shell 41, and a resistance strip 43 is fixed between the two fixing blocks 42. A slider 44 is slidably disposed on the outer side of the resistance strip 43. The resistance strip 43 is electrically connected to the controller 24 and the steam generator 21, and the resistance value of the resistance strip 43 located on the slider 44 near the first electromagnetic block 46 is connected to the circuit. A mounting block 45 is fixed to the lower side of the slider 44 and slidably disposed with respect to the bottom inner side of the mounting shell 41. The bottom inner side of the mounting housing 41 is provided with a first limiting groove that is adapted to the mounting block 45. The mounting block 45 is slidably disposed along the first limiting groove, which can guide and limit the movement of the mounting block 45. A first electromagnetic block 46 is fixedly disposed inside the mounting housing 41. The first electromagnetic block 46 is electrically connected to the air pressure sensor 315 and the ultrasonic sensor 316. A first magnetic block 47 that repels the first electromagnetic block 46 is fixedly disposed on one side of the mounting block 45. A third spring 48 that is fixed to the inner side of the mounting housing 41 is fixedly disposed on the other side of the mounting block 45.

[0051] When the bottom area and thickness of the precast slab are large, the repulsive force of the first electromagnetic block 46 on the first magnetic block 47 can be relatively large through the detection of the air pressure sensor 315 and the ultrasonic sensor 316. This results in a relatively large distance that the mounting block 45 moves away from the first electromagnetic block 46 along the first limiting groove. The compression of the third spring 48 and the movement of the mounting block 45 can drive the synchronous movement of the slider 44, resulting in a relatively large resistance value of the resistor strip 43 and a relatively small current in the connection circuit. Through the controller 24, the power of the steam generator 21 can be relatively small, which in turn results in a relatively small heating rate during steam curing. Conversely, when the bottom area and thickness of the precast slab are small, the heating rate can be relatively large.

[0052] A connecting shell 410 is fixedly provided on one side of the mounting block 45. A second electromagnetic block 411 is fixedly provided inside the connecting shell 410. A toothed block 412 that attracts the second electromagnetic block 411 is slidably provided inside the connecting shell 410. A fourth spring 413 that is fixed to the inside of the connecting shell 410 is symmetrically fixed inside the toothed block 412. A toothed rod 49 that is fixed to the mounting shell 41 is provided on one side of the toothed block 412. The toothed block 412 and the toothed rod 49 cooperate with each other.

[0053] During the detection by the detection component 3, the second electromagnetic block 411 is energized, generating an attraction effect on the toothed block 412, causing the toothed block 412 to detach from the toothed rod 49. The fourth spring 413 is compressed to avoid hindering the movement of the mounting block 45. After the detection by the detection component 3 is completed, the controller 24 can control the second electromagnetic block 411 to be de-energized. Under the elastic force of the fourth spring 413, the toothed block 412 moves closer to the toothed rod 49 and engages with the toothed rod 49 to maintain the current position of the mounting block 45.

[0054] A fourth electromagnetic block 419 is fixedly disposed inside the mounting housing 41. A connecting block 420 is provided on one side of the fourth electromagnetic block 419 and is slidably disposed with the bottom of the inner side of the mounting housing 41. A second limiting groove is provided at the bottom of the inner side of the mounting housing 41 and is adapted to the connecting block 420. The connecting block 420 is slidably disposed along the second limiting groove, which can guide and limit the movement of the connecting block 420. A third magnetic block 421 that repels the fourth electromagnetic block 419 is fixedly disposed on one side of the connecting block 420. A sixth spring 422 that is fixed to the inner side of the mounting housing 41 is fixedly disposed on the other side of the connecting block 420. The fourth electromagnetic block 419 is electrically connected to the temperature sensor 317. A second switch 418 is installed on both sides of the mounting block 45. The side of the connecting block 420 near the mounting block 45 is set with an arc-shaped end face to facilitate the contact of the second switch 418 near the side of the sixth spring 422.

[0055] Temperature sensor 317 can detect the temperature during steam curing in curing chamber 12. When the temperature detected by temperature sensor 317 is high, the current in the circuit connected to temperature sensor 317 will be relatively large, resulting in a relatively strong repulsive force of the fourth electromagnetic block 419 on the third electromagnetic block 421. This causes the connecting block 420 to move a relatively large distance away from the fourth electromagnetic block 419, compressing the sixth spring 422. For large precast slabs, this will cause the mounting block 45 to move a relatively large distance away from the first electromagnetic block 46, resulting in the connecting block 420... 20 moves a relatively small distance to contact the second switch 418 near the sixth spring 422. Once contacted, it indicates that the constant temperature has been reached, and the controller 24 controls the constant temperature curing of the precast slab. For large-sized precast slabs, the constant temperature during steam curing can be adjusted to be relatively low, while for small-sized precast slabs, the constant temperature can be adjusted to be relatively high. Thus, the heating rate and constant temperature during steam curing can be automatically adjusted according to the size of the precast slab to prevent the heating rate and constant temperature from being too high or too low, which would affect the steam curing effect of the precast slab.

[0056] A third electromagnetic block 414 is fixedly disposed inside the mounting housing 41. The third electromagnetic block 414 is electrically connected to the humidity sensor. A movable block 415 is slidably disposed inside the mounting housing 41. A third limiting groove adapted to the movable block 415 is provided at the bottom of the inner side of the mounting housing 41. The movable block 415 is slidably disposed along the third limiting groove, which can guide and limit the movement of the movable block 415. A second magnetic block 416 that repels the third electromagnetic block 414 is fixedly disposed on one side of the movable block 415. A fifth spring 417 fixed to the inner side of the mounting housing 41 is fixedly disposed on the other side of the movable block 415. The side of the movable block 415 near the mounting block 45 is set with an arc-shaped end face to facilitate the contact of the second switch 418 near the fifth spring 417.

[0057] The humidity in the curing chamber 12 is detected by a humidity sensor. When the humidity detected by the humidity sensor is high, the current in the circuit connected to the humidity sensor will be relatively large. This results in a relatively strong repulsive force between the third electromagnetic block 414 and the second magnetic block 416, causing the moving block 415 to move a relatively large distance away from the third electromagnetic block 414. The fifth spring 417 is compressed. For large-sized precast slabs, this requires the moving block 415 to move a relatively large distance before it can contact the second switch 418 near the fifth spring 417. Once contact is made, it indicates that the required amount of steam for the current size of the precast slab has been reached. That is, for large-sized precast slabs, the amount of steam during curing can be relatively large to provide more heat. Conversely, for small-sized precast slabs, the amount of steam during curing can be relatively small to improve the steam curing effect of the precast slab. Thus, by adjusting the heating rate, constant temperature, and steam volume of the adjustment component 4, the steam curing effect can be improved while also saving energy and improving the practicality of the equipment.

[0058] Example 2

[0059] The touch component 5 includes a mounting bracket 51 disposed on one side of the mounting block 45. The mounting bracket 51 is fixed to the mounting shell 41. Two third switches 52 are mounted on one side of the mounting bracket 51. A solenoid valve 53 is mounted on the nozzle 23. The third switches 52 are electrically connected to the controller 24 and the solenoid valve 53. The side of the mounting block 45 near the mounting bracket 51 is set with an arc-shaped end face so that the mounting block 45 can abut against the third switches 52.

[0060] When the precast slab dimensions are detected by the detection component 3, if the mounting block 45 moves away from the first electromagnetic block 46 and does not touch the third switch 52, the controller 24 will open the solenoid valves 53 on multiple nozzles 23, allowing steam to be ejected through the multiple nozzles 23. If the mounting block 45 moves and touches the first third switch 52 near the mounting block 45, the controller 24 can control the solenoid valves 53 on multiple nozzles 23 on both sides of the curing chamber 12 to open intermittently (e.g., every other nozzle 23, or every two nozzles). If the mounting block 45 moves to touch the second third switch 52, the controller 24 will control the solenoid valves 53 on multiple nozzles 23 on both sides of the curing chamber 12 to open intermittently. Device 24 can control the solenoid valves 53 on multiple nozzles 23 on both sides of the curing chamber 12 to open every two nozzles 23 or every three nozzles 23. This, in contrast to the first and third switches 52, further increases the spacing of steam sprayed through the nozzles 23. For large-sized precast slabs, this allows for a relatively large steam spray spacing to avoid overheating of the precast slab surface, ensuring that heat can penetrate into the interior and preventing excessive temperature differences between the inside and outside of the precast slab. Conversely, for small-sized precast slabs, this allows for a relatively small steam spray spacing to ensure uniform coverage of the precast slab surface and prevent excessive evaporation of surface moisture, which could lead to cracking. This further improves the steam curing effect on precast concrete slabs.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving steam curing equipment for the production of precast concrete slabs, comprising: A base plate, on which a curing room and a transfer vehicle are provided, and a guide rail is provided on the upper side of the base plate; Its features include: a steam assembly, which is disposed on the upper side of the base plate and is used to steam-cure the precast slabs in the curing chamber; A detection component is disposed on the upper side of the base plate, and the detection component is used to detect the size of the precast slab placed on the transfer vehicle; An adjustment component is installed on one side of the curing chamber. The adjustment component automatically adjusts the heating rate and constant temperature of the steam component during the steam curing of the precast slab according to the size of the precast slab detected by the detection component. A touch control component is installed on one side of the curing chamber. The touch control component automatically adjusts the steam jet spacing of the steam component according to the size of the precast slab detected by the detection component.

2. The steam curing equipment for producing precast concrete slabs according to claim 1, characterized in that: The steam assembly includes a steam generator fixed on the upper side of the base plate. The output end of the steam generator is fixedly provided with a connecting pipe. Multiple nozzles are fixedly connected to the side end of the connecting pipe at equal intervals. The nozzles pass through the side end of the curing chamber and are fixed to the curing chamber. A controller is provided on one side of the curing chamber.

3. The steam curing equipment for producing precast concrete slabs according to claim 2, characterized in that: The detection component includes multiple first connecting pipes fixed at equal intervals on the upper side of the transport vehicle. Multiple branch pipes are equally spaced on the upper side of the first connecting pipes. A first sealing gasket is fixed on the upper side of the branch pipes of the first connecting pipes. A second connecting pipe is fixedly connected to one side of the multiple first connecting pipes.

4. The steam curing equipment for producing precast concrete slabs according to claim 3, characterized in that: A bracket is fixed to the upper side of the base plate, an air pump is fixed to the upper side of the bracket, a third connecting pipe is fixed to the output end of the air pump, a plurality of spheres are slidably arranged around the inner side of one end of the second connecting pipe at equal intervals, a first spring is fixed to the inner side of the spheres and fixed to the second connecting pipe, and grooves that fit the spheres are arranged around the outer side of one end of the third connecting pipe at equal intervals, and a second sealing gasket is fixed to the inner side of one end of the second connecting pipe.

5. The steam curing equipment for producing precast concrete slabs according to claim 4, characterized in that: A limiting shell is fixedly installed on one side of the curing chamber, the limiting shell penetrates one side of the curing chamber, a connector is slidably installed on the inner side of the limiting shell, a second spring is fixedly installed on one side of the connector and fixed to the limiting shell, a first switch is installed on the inner side of the limiting shell, an alarm is installed on one side of the curing chamber, a pressure sensor is installed on the inner side of the third connecting pipe, and an ultrasonic sensor, a temperature sensor and a humidity sensor are installed on the inner side of the curing chamber.

6. The steam curing equipment for producing precast concrete slabs according to claim 5, characterized in that: The adjustment assembly includes a mounting shell fixed to one side of the curing chamber. Two fixing blocks are fixed to the top inner side of the mounting shell, and a resistance strip is fixed between the two fixing blocks. A slider is slidably disposed on the outer side of the resistance strip. A mounting block is fixed to the lower side of the slider and slidably disposed with the bottom inner side of the mounting shell. A first electromagnetic block is fixed to the inner side of the mounting shell. The first electromagnetic block is electrically connected to a pressure sensor and an ultrasonic sensor. A first magnetic block that repels the first electromagnetic block is fixed to one side of the mounting block. A third spring that is fixed to the inner side of the mounting shell is fixed to the other side of the mounting block.

7. The steam curing equipment for producing precast concrete slabs according to claim 6, characterized in that: A connecting shell is fixed on one side of the mounting block, a second electromagnetic block is fixed on the inner side of the connecting shell, a toothed block that attracts the second electromagnetic block is slidably arranged on the inner side of the connecting shell, a fourth spring that is symmetrically fixed on the inner side of the toothed block and fixed on the inner side of the connecting shell, and a toothed rod that is fixed on one side of the toothed block and is fixed to the mounting shell, and the toothed block and the toothed rod cooperate with each other.

8. The steam curing equipment for producing precast concrete slabs according to claim 6, characterized in that: A fourth electromagnetic block is fixed inside the mounting housing. A connecting block that slides with the bottom of the inner side of the mounting housing is provided on one side of the fourth electromagnetic block. A third magnetic block that repels the fourth electromagnetic block is fixed on one side of the connecting block. A sixth spring that is fixed to the inner side of the mounting housing is fixed on the other side of the connecting block. The fourth electromagnetic block is electrically connected to a temperature sensor. A second switch is installed on each side of the mounting block.

9. The steam curing equipment for producing precast concrete slabs according to claim 6, characterized in that: A third electromagnetic block is fixed inside the mounting housing. The third electromagnetic block is electrically connected to the humidity sensor. A movable block is slidably arranged inside the mounting housing. A second magnetic block that repels the third electromagnetic block is fixed on one side of the movable block. A fifth spring that is fixed to the inside of the mounting housing is fixed on the other side of the movable block.

10. The steam curing equipment for producing precast concrete slabs according to claim 6, characterized in that: The touch component includes a mounting bracket disposed on one side of the mounting block, the mounting bracket being fixed to the mounting shell, two third switches being mounted on one side of the mounting bracket, and a solenoid valve being mounted on the nozzle.

Images