A curing device for construction of clean concrete in a thermal power plant

Abstract

The application belongs to the technical field of concrete curing, and particularly relates to a curing device for fair-faced concrete construction in a thermal power plant, which aims at the problem that the existing concrete curing device cannot well guarantee the flatness of the protective film laying, and proposes the following scheme, which comprises a main machine box, power cavities are formed at the bottom of the main machine box, and a mobile crawler is installed in each of the two power cavities at the bottom of the main machine box, vertical roller shaft top frames are fixed at the top of the main machine box through bolts, and horizontal film winding shaft rods are installed on the top of the two roller shaft top frames through bearings. In the process of laying the protective film, the top exhaust fan inhales air from the air inlet and discharges it from the air outlet, the protective film is pulled on both sides during the air inhaling process, and the air outlet guide plate on the air outlet is offset to the two sides, so that the protective film laid on the concrete ground is stretched, and the protective film laid during the curing is more flat.

Description

Technical Field

[0001] This invention relates to the field of concrete curing technology, and in particular to a curing device for fair-faced concrete construction in thermal power plants. Background Technology

[0002] If concrete is not cured in time after pouring, the moisture will evaporate too quickly, affecting the cement hydration reaction and causing shrinkage cracks and surface peeling. The curing time for ordinary silicate cement concrete is usually no less than 7 days, while impermeable or high-strength concrete needs to be extended to more than 14 days. The concrete components are placed in a curing room filled with saturated steam or a mixture of steam and air. The high temperature and humidity environment accelerates the hardening of the concrete. During the curing process, a protective film is laid on the fully moistened concrete floor to prevent rapid moisture loss.

[0003] For example, Chinese patent document CN108527627B discloses a concrete curing device, comprising multiple sub-coating layers connected in sequence. The characteristic feature is that each sub-coating layer includes: a water-absorbing and water-retaining layer; an air-impermeable layer; and a water pipe disposed between the water-absorbing and water-retaining layer and the air-impermeable layer. Multiple water outlet holes are provided on the wall of the water pipe, and the water pipes of each sub-coating layer are connected to form a water pipe string. One end of the water pipe string is connected to a first water supply pump, and the other end of the water pipe string is connected to a water storage tank. The above-disclosed technology has the following problem: during concrete curing, a protective film needs to be laid to prevent rapid moisture loss, but current curing devices cannot guarantee the flatness of the protective film. Existing technologies do not easily solve this problem. Therefore, there is an urgent need for a curing device for fair-faced concrete construction in thermal power plants to solve the above problems. Summary of the Invention

[0004] To address the technical problem that existing concrete curing devices cannot effectively guarantee the flatness of the protective film, this invention proposes a curing device for fair-faced concrete construction in thermal power plants.

[0005] This invention proposes a curing device for fair-faced concrete construction in thermal power plants, comprising a main unit housing. Power chambers are located on both sides of the bottom of the main unit housing, and each of the two power chambers at the bottom of the main unit housing is equipped with a track. Vertically arranged roller top frames are bolted to both sides of the top of the main unit housing. Horizontally arranged film-rolling shafts are mounted on the tops of the two roller top frames via bearings. A sprayer box slot is located at one bottom end of the main unit housing. First electric push rods are fixed to both sides of the sprayer box slot, and spray nozzles are fixed to one end of each of the two first electric push rods. The spraying unit has an array of water mist nozzles installed at its bottom. A film-stretching mechanism is mounted on the side walls of the roller top frame located on both sides via bearings. A horizontally penetrating film-stretching groove is formed in the middle of the side wall of each film-stretching mechanism. Film-stretching grooves are also formed on the top and bottom inner walls of the film-stretching groove. Two second electric push rods are hinged to both ends of each film-stretching groove. Film-stretching adjustment frames are hinged to the tops of the two second electric push rods. Film-stretching rollers are mounted within each of the two film-stretching adjustment frames via bearings, and a film-stretching conveyor belt is fitted between the film-stretching rollers at both ends.

[0006] Preferably, two side fixing brackets are fixed at both ends of the main unit chassis. The two side fixing brackets are installed and fixed at an angle downwards. A sliding cavity is opened at the bottom of the two side fixing brackets. A telescopic fixing rod is slidably installed in the sliding cavity of the two side fixing brackets. The telescopic fixing rod is controlled to extend and retract by a third electric push rod, which is installed inside the side fixing bracket.

[0007] Preferably, a steam generator box is mounted on the bottom of the two telescopic fixing rods via bearings, a steam duct is fitted on the top of the steam generator box, a horizontally arranged steam spray plate is fixed on the bottom of the steam generator box, a steam generator box is fixed on the top of the main unit box, a steam top cover is installed on the top of the steam generator box, and a steam duct is fitted between the middle position of one end of the steam top cover and the steam duct. A first servo motor is installed on one side of the telescopic fixing rod, and the output shaft of the first servo motor is fixed to the rotating shaft on the top of the steam generator box.

[0008] Preferably, an exhaust fan is fixed to the top of the film stretching machine housing by bolts, an exhaust hood is fixed to the air outlet end of the exhaust fan, and an air inlet hood is fixed to the air inlet end of the exhaust fan.

[0009] Preferably, the film stretching machine housing has an air inlet in the middle of one side of the film stretching groove, and the air inlet is connected and communicates with the air inlet cover on the top.

[0010] Preferably, air outlets are provided at the top and bottom of one end of the film stretching machine housing. The air outlets are connected and communicate with the exhaust hood at the top. A swingable air outlet guide plate is installed between the top and bottom of the air outlet. The air outlet guide plates are distributed in an array and are inclined towards the outside of the film stretching machine housing.

[0011] Preferably, a cleaning mechanism is provided at the other end of the main unit chassis.

[0012] Preferably, the cleaning mechanism includes a cleaning chassis slide groove at one end of the main chassis, an inner slide groove is provided inside the cleaning chassis slide groove, and an inner slider is slidably installed inside the inner slide groove. Drive screws are installed on both sides of the inner slide groove through bearings. The drive screws are threadedly fitted to the inner slider. A cleaning chassis is installed at one end of the inner slider through a bearing. A second servo motor is installed on the top of the inner slider. The output shaft of the second servo motor is fixed to the rotating shaft of the cleaning chassis.

[0013] Preferably, a cleaning roller is installed between the two ends of the cleaning machine housing via bearings.

[0014] Preferably, the top of the cleaning chamber has three arrayed outer ring grooves, and a drive rotating block is slidably installed in each of the three outer ring grooves. The same soot blowing chamber is fixed between the three drive rotating blocks. A soot blowing fan is fixed inside the soot blowing chamber. Exhaust ports are opened on both sides of the bottom of the soot blowing chamber. A drive motor is fixed inside the drive rotating block. A drive gear is installed on the output shaft of the drive motor. An arc-shaped rack is fixed on the inner wall of the outer ring groove of the cleaning chamber. The drive gear meshes with the arc-shaped rack.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. In the curing device for fair-faced concrete construction in this thermal power plant, during the laying of the protective film, the exhaust fan at the top draws in air through the air inlet and discharges it through the air outlet. During the air intake process, the protective film is pulled outward on both sides to prevent it from shifting. The air outlet guide plate on the air outlet shifts to both sides to make the protective film laid on the concrete ground stretch out and make the curing protective film lay more flat.

[0017] 2. The curing device for fair-faced concrete construction in this thermal power plant has a cleaning mechanism that moves back and forth along the path of the curing equipment to change the cleaning direction. During cleaning, the rotating cleaning roller sweeps dust and other debris to the uncured side. At the same time, the drive motor adjusts the dust blowing machine to the side that needs to be cleaned, and the dust blowing fan blows away the dust, making the cured fair-faced concrete floor cleaner.

[0018] 3. The curing device for fair-faced concrete construction in this thermal power plant has the following functions: During the curing process, the steam generator box extends to the ground, and the first servo motor controls the maintenance of the neat generator box and the ground level. Steam is generated through the steam generator box and sprayed out through the steam duct and the bottom steam spray plate to cure the concrete. The first electric push rod extends the spraying box out of the main unit box and wets the concrete ground through the bottom water mist nozzle. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of one end of the overall structure of a curing device for fair-faced concrete construction in thermal power plants proposed in this invention.

[0020] Figure 2 This is a schematic diagram of the other end of the overall structure of a curing device for fair-faced concrete construction in thermal power plants proposed in this invention.

[0021] Figure 3 This is a bottom view schematic diagram of the overall structure of a curing device for fair-faced concrete construction in thermal power plants proposed in this invention.

[0022] Figure 4 This is a schematic diagram of the membrane extrusion machine box structure of a curing device for fair-faced concrete construction in thermal power plants proposed in this invention;

[0023] Figure 5 This invention proposes a curing device for fair-faced concrete construction in thermal power plants. Figure 4 Enlarged schematic diagram of part A of the structure;

[0024] Figure 6 This is a schematic diagram of the top structure of the film-pulling machine box of a curing device for fair-faced concrete construction in thermal power plants, as proposed in this invention.

[0025] Figure 7 This is a schematic diagram of the top structure of the steam turbine box of a curing device for fair-faced concrete construction in thermal power plants, as proposed in this invention.

[0026] Figure 8 This is a partial structural diagram of the cleaning machine box of a curing device for fair-faced concrete construction in thermal power plants, as proposed in this invention.

[0027] In the diagram: 1. Main unit housing; 2. Steam generator housing; 3. Steam top cover; 4. Steam duct; 5. Roller top frame; 6. Film winding shaft; 7. Film stretching machine housing; 8. Steam generator housing; 9. Cleaning machine housing; 10. Cleaning roller; 11. Cleaning machine housing slide groove; 12. Cleaning machine housing outer ring groove; 13. Soot blowing machine housing; 14. Track; 15. Steam spray plate; 16. Sprayer housing slot; 17. Sprayer housing; 18. 19. First electric push rod; 20. Water mist nozzle; 21. Exhaust fan; 22. Exhaust hood; 23. Air inlet hood; 24. Air outlet; 25. Air outlet guide plate; 26. Film stretching groove; 27. Second electric push rod; 28. Film stretching adjustment frame; 29. ​​Film stretching conveyor belt; 30. Side fixing frame; 31. Telescopic fixing rod; 32. Inner slider; 33. First servo motor; 34. Drive screw; 35. Second servo motor. Detailed Implementation

[0028] Reference Figures 1-8A curing device for fair-faced concrete construction in thermal power plants includes a main unit 1. Power chambers are located on both sides of the bottom of the main unit 1, and each of the two power chambers is equipped with a track 14. Vertical roller top frames 5 are bolted to both sides of the top of the main unit 1. Horizontally mounted film-rolling shafts 6 are mounted on the top of the two roller top frames 5 via bearings. A sprayer box slot 16 is located at one end of the bottom of the main unit 1. First electric push rods 18 are fixed to both sides of the sprayer box slot 16. A sprayer box 17 is fixed to one end of each of the two first electric push rods 18. Spraying... The bottom of the casing 17 is equipped with an array of water mist nozzles 19. The side walls of the roller top frame 5 located on both sides are equipped with film stretching machine casings 7 via bearings. A horizontally penetrating film stretching groove 26 is opened in the middle of the side wall of the film stretching machine casing 7. Film stretching grooves are also opened on the inner walls of the top and bottom of the film stretching groove 26 of the film stretching machine casing 7. Two second electric push rods 27 are hinged at both ends of the film stretching groove. Film stretching adjustment frames 28 are hinged at the top of the two second electric push rods 27. Film stretching rollers are installed in the two film stretching adjustment frames 28 via bearings, and a film stretching conveyor belt 29 is sleeved between the film stretching rollers at both ends.

[0029] Furthermore, two side fixing brackets 30 are fixed on both sides of one end of the main unit 1. The two side fixing brackets 30 are installed and fixed at an angle downward. The bottom of the two side fixing brackets 30 is provided with a sliding cavity. A telescopic fixing rod 31 is slidably installed in the sliding cavity of the two side fixing brackets 30. The telescopic fixing rod 31 is controlled to extend and retract by a third electric push rod. The third electric push rod is installed inside the side fixing bracket 30.

[0030] Furthermore, a steam generator box 8 is mounted on the bottom of the two telescopic fixing rods 31 via bearings. A steam duct pipe 4 is fitted on the top of the steam generator box 8. A horizontally arranged steam spray plate 15 is fixed on the bottom of the steam generator box 8. A steam generator box 2 is fixed on the top of the main unit box 1. A steam top cover 3 is installed on the top of the steam generator box 2. The middle position of one end of the steam top cover 3 is fitted between the steam duct pipe 4 and the middle position of the steam top cover 3. A first servo motor 33 is installed on one side of the telescopic fixing rod 31. The output shaft of the first servo motor 33 is fixed to the rotating shaft on the top of the steam generator box 8.

[0031] Furthermore, an exhaust fan 20 is bolted to the top of the film stretching machine housing 7. An exhaust hood 21 is fixed to the air outlet of the exhaust fan 20, and an air inlet hood 22 is fixed to the air inlet of the exhaust fan 20. An air inlet 25 is provided in the middle of one side of the film stretching groove 26 of the film stretching machine housing 7. The air inlet 25 is connected and communicates with the air inlet hood 22 on the top. An air outlet 23 is provided at the top and bottom of one end of the film stretching machine housing 7. The air outlet 23 is connected and communicates with the exhaust hood 21 on the top. A swingable air outlet guide plate 24 is installed between the top and bottom of the air outlet 23. The air outlet guide plates 24 are arranged in an array and are inclined towards the outside of the film stretching machine housing 7.

[0032] Furthermore, a cleaning mechanism is provided at the other end of the main unit 1. The cleaning mechanism includes a cleaning chassis slide 11 opened at one end of the main unit 1. An inner slide is opened inside the cleaning chassis slide 11, and an inner slide block 32 is slidably installed inside the inner slide. Drive screws 34 are installed on both sides of the inner slide via bearings. The drive screws 34 and the inner slide block 32 are threaded together. A cleaning chassis 9 is installed at one end of the inner slide block 32 via a bearing. A second servo motor 35 is installed on the top of the inner slide block 32. The output shaft of the second servo motor 35 is fixed to the rotating shaft of the cleaning chassis 9. A cleaning roller 10 is installed between the two ends of the cleaning chassis 9 via bearings.

[0033] Furthermore, the top of the cleaning housing 9 is provided with three arrayed outer ring grooves 12. Each of the three outer ring grooves 12 has a drive rotating block slidably installed inside. The same soot blowing housing 13 is fixed between the three drive rotating blocks. A soot blowing fan is fixed inside the soot blowing housing 13. Exhaust ports are provided on both sides of the bottom of the soot blowing housing 13. A drive motor is fixed inside the drive rotating block. A drive gear is installed on the output shaft of the drive motor. An arc-shaped rack is fixed on the inner wall of the outer ring groove 12 of the cleaning housing. The drive gear meshes with the arc-shaped rack.

[0034] In use, the curing device is placed on the concrete surface requiring curing. The device is moved by two moving tracks 14 at the bottom. A protective film is placed on the film-rolling shaft 6, and the film is pulled out and positioned along the film-pulling groove 26 on both sides. The extension and retraction of the second electric push rod 27 is controlled, causing the top and bottom film-pulling conveyor belts 29 to contact and compress the protective film. The film-pulling conveyor belts 29 are tilted, and as they move, the protective film is pulled to both sides. During curing, the third electric push rod extends the steam generator 8 to the ground. The first servo motor 33 controls the steam generator 8 to remain level with the ground. Steam is generated by the steam generator 2 and sprayed through the steam vent pipe 4 and the bottom steam spray plate 15 to cure the concrete. The first electric push rod 18 extends the sprayer box 17 out of the main unit box 1, and the water mist nozzle 19 at the bottom wets the concrete ground. As the curing device moves forward, the protective film covers the ground that has been steam cured and sprayed with moisture. The cleaning mechanism is set at the front end of the main unit box 1. The cleaning mechanism can move to both sides of the main unit box 1 by controlling the inner slider 32, and can be tilted by controlling the rotation of the second servo motor 35. It can move back and forth on the path of the curing equipment to change the cleaning direction. During cleaning, the dust and other dust are swept to the uncured side by the rotation of the cleaning roller 10. At the same time, the drive motor drives the dust blowing box 13 to be adjusted to the side that needs to be cleaned. The dust blowing fan blows away the dust, making the cured fair concrete ground cleaner.

[0035] During the installation of the protective film in the curing device, the exhaust fan 20 at the top draws in air through the air inlet 25 and discharges it through the air outlet 23. During the air intake process, the protective film is pulled outward on both sides to prevent it from shifting. The air outlet guide plate 24 on the air outlet 24 shifts to both sides to make the protective film laid on the concrete ground stretch out and make the curing protective film more flat.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A curing device for fair-faced concrete construction in thermal power plants, comprising a main unit (1), wherein power chambers are provided on both sides of the bottom of the main unit (1), and tracked vehicles (14) are installed in both power chambers at the bottom of the main unit (1), characterized in that, The top two sides of the main unit (1) are each bolted with vertically arranged roller top brackets (5). The tops of the two roller top brackets (5) are mounted with horizontally arranged film rolling shafts (6) via bearings. A spray box slot (16) is provided at the bottom of one end of the main unit (1). First electric push rods (18) are fixed on both sides of the spray box slot (16). A spray box (17) is fixed at one end of the two first electric push rods (18). An array of water mist nozzles (19) is installed at the bottom of the spray box (17). The rollers located on both sides... The side walls of the shaft top frame (5) are all equipped with film stretching machine housings (7) through bearings. A horizontal film stretching groove (26) is opened in the middle of the side wall of the film stretching machine housing (7). The film stretching machine housing (7) is provided with film stretching grooves on the top and bottom inner walls of the film stretching groove (26). Two second electric push rods (27) are hinged at both ends of the film stretching groove. Film stretching adjustment frames (28) are installed on the top of the two second electric push rods (27) through a hinge. Film stretching rollers are installed in the two film stretching adjustment frames (28) through bearings, and film stretching conveyor belts (29) are sleeved between the film stretching rollers at both ends. The top of the film stretching machine box (7) is fixed with an exhaust fan (20) by bolts. An exhaust hood (21) is fixed to the air outlet end of the exhaust fan (20), and an air inlet hood (22) is fixed to the air inlet end of the exhaust fan (20). The film stretching machine box (7) has an air inlet (25) in the middle of one side of the film stretching groove (26), and the air inlet (25) is connected and communicates with the air inlet cover (22) on the top. The top and bottom of one end of the film stretching machine box (7) are provided with air outlets (23). The air outlets (23) are connected and communicate with the exhaust hood (21) on the top. A swingable air outlet guide plate (24) is installed between the top and bottom of the air outlet (23). The air outlet guide plates (24) are arranged in an array and are inclined towards the outside of the film stretching machine box (7).

2. The curing device for fair-faced concrete construction in thermal power plants according to claim 1, characterized in that, The main unit (1) has two side fixing brackets (30) fixed on both sides of one end. The two side fixing brackets (30) are installed and fixed at an angle downward. The bottom of the two side fixing brackets (30) is provided with a sliding cavity. The sliding cavity of the two side fixing brackets (30) is slidably installed with a telescopic fixing rod (31). The telescopic fixing rod (31) is controlled to extend and retract by a third electric push rod. The third electric push rod is installed inside the side fixing bracket (30).

3. A curing device for fair-faced concrete construction in thermal power plants according to claim 2, characterized in that, A steam generator box (8) is mounted on the bottom of the two telescopic fixing rods (31) via bearings. A steam duct pipe (4) is fitted on the top of the steam generator box (8). A horizontally arranged steam spray plate (15) is fixed on the bottom of the steam generator box (8). A steam generator box (2) is fixed on the top of the main unit box (1). A steam top cover (3) is installed on the top of the steam generator box (2). The middle position of one end of the steam top cover (3) is fitted between the steam duct pipe (4). A first servo motor (33) is installed on one side of the telescopic fixing rod (31). The output shaft of the first servo motor (33) is fixed to the rotating shaft on the top of the steam generator box (8).

4. A curing device for fair-faced concrete construction in thermal power plants according to claim 1, characterized in that, A cleaning mechanism is provided at the other end of the main unit (1).

5. A curing device for fair-faced concrete construction in thermal power plants according to claim 4, characterized in that, The cleaning mechanism includes a cleaning chassis slide groove (11) opened at one end of the main chassis (1). The cleaning chassis slide groove (11) has an inner slide groove inside, and an inner slide block (32) is slidably installed inside the inner slide groove. Drive screws (34) are installed on both sides of the inner slide groove through bearings. The drive screws (34) and the inner slide block (32) are threaded together. A cleaning chassis (9) is installed at one end of the inner slide block (32) through a bearing. A second servo motor (35) is installed on the top of the inner slide block (32). The output shaft of the second servo motor (35) is fixed to the rotating shaft of the cleaning chassis (9).

6. A curing device for fair-faced concrete construction in thermal power plants according to claim 5, characterized in that, Cleaning rollers (10) are installed between the two ends of the cleaning housing (9) via bearings.

7. A curing device for fair-faced concrete construction in thermal power plants according to claim 5, characterized in that, The top of the cleaning machine box (9) is provided with three arrayed outer ring grooves (12). Each of the three outer ring grooves (12) is equipped with a drive rotating block. The same dust blowing machine box (13) is fixed between the three drive rotating blocks. A dust blowing fan is fixed inside the dust blowing machine box (13). Exhaust ports are provided on both sides of the bottom of the dust blowing machine box (13). A drive motor is fixed inside the drive rotating block. A drive gear is installed on the output shaft of the drive motor. An arc-shaped rack is fixed on the inner wall of the outer ring groove (12) of the cleaning machine box. The drive gear meshes with the arc-shaped rack.

Images