A steam-pressurized concrete slab steam curing equipment

Abstract

This utility model relates to a steam curing device for steam-pressurized concrete slabs, belonging to the field of steam-pressurized concrete slab curing technology. It includes a curing chamber and a placement rack. Tracks are symmetrically installed on both sides of the lower end of the curing chamber, and the placement rack slides on the tracks. Steam nozzles are arranged in an array inside the curing chamber, with the steam outlet direction of the nozzles tilted downwards. Horizontal plates are fixedly installed in an array on both sides of the placement rack, and fixed beams are symmetrically fixed on the horizontal plates. Lifting beams are installed between the front and rear fixed beams. By using the combination of fixed beams and lifting beams, during placement, the rising of the lifting beams transforms the steam-pressurized concrete slab from being supported by fixed beams to being supported by lifting beams, improving the comprehensiveness of steam curing. When supported by lifting beams, the steam-pressurized concrete slab is in a slightly tilted state, and the impact force of the steam blown out by the steam nozzles facilitates the removal of condensed water droplets, reducing water adhesion and improving curing quality.

Description

Technical Field

[0001] This utility model relates to the field of steam-pressurized concrete slab curing technology, and in particular to a steam-pressurized concrete slab steam curing equipment. Background Technology

[0002] Steam-pressurized concrete slabs are a lightweight, porous, new type of green and environmentally friendly building material made primarily of cement, lime, and silica sand, with varying amounts of corrosion-resistant steel mesh added according to structural requirements. Autoclaved aerated concrete (AAC) slabs are produced through high-temperature, high-pressure, and steam curing, resulting in porous crystalline structures. These slabs have a lower density than ordinary cementitious materials and possess unparalleled properties such as fire resistance, sound insulation, heat insulation, and thermal insulation. They are widely used in modern construction projects. Steam curing is a crucial step in the production and processing of AAC slabs. Steam curing uses steam to increase the temperature and humidity of the concrete slab, thereby accelerating its hardening process. Currently, curing chambers are commonly used. The AAC slabs are placed on a frame and then pushed into the chamber, where steam is introduced for curing. However, during use, the areas where the AAC slabs contact the frame often fail to come into direct contact with steam, resulting in ineffective steam curing in certain areas. Furthermore, when the moisture carried by the steam comes into contact with the AAC slabs, condensation occurs, forming water droplets on the surface and affecting the curing quality. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides a steam curing equipment for steam-pressurized concrete slabs, which has the effect of steam contacting various parts of the steam-pressurized concrete slabs and reducing the adhesion of condensate on the surface of the steam-pressurized concrete slabs.

[0004] The technical solution adopted by this utility model is: a steam-pressurized concrete slab steam curing device, including a curing chamber and a placement rack. Tracks are symmetrically installed on both sides of the lower end of the curing chamber. The placement rack is slidably placed on the tracks. Steam nozzles are arranged in an array inside the curing chamber, with the steam outlet direction of the steam nozzles inclined downwards. Horizontal plates are fixedly installed in an array on both sides of the placement rack. Fixed beams are symmetrically fixedly installed on the horizontal plates, and lifting beams are installed between the front and rear fixed beams. During use, the lifting beams are first lowered to their lowest position, and the slab to be cured is then placed... The steam-cured pressurized concrete slab is placed on the fixed beam, and the placement frame is pushed so that it enters the interior of the curing chamber along the track, sealing the curing chamber. Steam is then supplied into the interior of the curing chamber through the steam nozzle, and the steam-cured concrete slab is steam-cured by the steam. During the curing process, the lifting beam is raised, allowing the steam-cured concrete slab to switch from the fixed beam support to the lifting beam support, which facilitates adjustment of the support position and improves the adequacy of the contact between the steam and the steam-cured concrete slab.

[0005] Preferably, a steam supply pipe is fixedly installed on the outside of the curing chamber, and the steam supply pipe is connected to the steam nozzle. A steam exhaust valve is fixedly installed on one side of the upper end of the curing chamber, and a chamber door is hinged to one end of the curing chamber. The steam supply pipe allows external steam to be injected into the interior of the curing chamber through the steam nozzle. The steam exhaust valve improves the pressure stability inside the curing chamber, and the chamber door facilitates sealing of the curing chamber after the placement rack is pushed into the chamber.

[0006] Preferably, rollers are arranged in an array on both sides of the lower end of the placement rack. The placement rack is slidably placed on the track by the rollers. When the placement rack is pushed, the rollers rotate on the track. The track has a concave structure to facilitate the guidance of the placement rack.

[0007] Preferably, both the fixed beam and the lifting beam are concave structures, which facilitates limiting the two sides of the steam-pressurized concrete slab when placing it.

[0008] Preferably, a first hydraulic cylinder and a second hydraulic cylinder are respectively installed on both sides of the upper end of the horizontal plate. The lifting beam is installed on the horizontal plate through the first hydraulic cylinder and the second hydraulic cylinder, and can extend and retract through the telescopic ends of the first hydraulic cylinder and the second hydraulic cylinder, so as to facilitate switching the support position of the steam-pressurized concrete slab.

[0009] Preferably, a hinge seat is installed at the upper end of the first hydraulic cylinder. The first hydraulic cylinder is fixedly connected to the lower surface of one end of the lifting beam through the hinge seat. Through the hinge seat, when the lifting beam rises, if the extension length of the second hydraulic cylinder is greater than the extension length of the first hydraulic cylinder, the lifting beam will be tilted. The impact force of the steam ejection will help to blow off the water droplets condensed on the surface of the steam-pressurized concrete slab, thus preventing water droplets from adhering and affecting the curing effect.

[0010] Preferably, a slider is fixedly installed at the upper end of the second hydraulic cylinder, and the upper surface of the slider has an arc-shaped structure. The second hydraulic cylinder is slidably connected to one end of the lower surface of the lifting beam through the slider, thereby preventing jamming.

[0011] Preferably, a limiting frame is fixedly installed on one side of the lower surface of the lifting beam, and the upper end of the slider is located inside the limiting frame. When the slider slides on the lifting beam, the slider slides along the limiting frame, which not only facilitates the guidance of the slider, but also limits the tilt of the steam-pressurized concrete slab.

[0012] The beneficial effects of this utility model are: by adopting a combination of fixed beam and lifting beam, the rising of the lifting beam during placement allows the steam-pressurized concrete slab to switch from fixed beam support to lifting beam support, improving the comprehensiveness of steam curing. When supported by the lifting beam, the steam-pressurized concrete slab is in a slightly tilted state, and the impact force of the steam blown out by the steam nozzle makes it easy to blow off the condensed water droplets, reducing the adhesion of water droplets and improving the curing quality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the structure of the curing chamber in this utility model.

[0015] Figure 3 This is a schematic diagram of the structure of the placement rack in this utility model.

[0016] Figure 4 This utility model Figure 3 A magnified structural diagram of location A in the middle.

[0017] Figure 5 This is a schematic diagram of the lifting beam in this utility model.

[0018] Explanation of reference numerals in the attached diagram: 1. Curing chamber; 2. Placement rack; 3. Track; 4. Steam nozzle; 5. Horizontal plate; 6. Fixed beam; 7. Lifting beam; 8. Steam supply pipe; 9. Exhaust valve; 10. Chamber door; 11. Roller; 12. First hydraulic cylinder; 13. Second hydraulic cylinder; 14. Hinge seat; 15. Slider; 16. Limit frame. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings:

[0020] like Figures 1-5 As shown, this embodiment provides a steam curing device for pressurized concrete slabs, including a curing chamber 1 and a placement rack 2. Tracks 3 are symmetrically installed on both sides of the lower end of the curing chamber 1. The placement rack 2 is slidably placed on the tracks 3. Steam nozzles 4 are arranged in an array inside the curing chamber 1, with the steam outlet direction of the steam nozzles 4 inclined downwards. Horizontal plates 5 are fixedly installed in an array on both sides of the placement rack 2. Fixed beams 6 are symmetrically fixedly installed on the horizontal plates 5, and lifting beams 7 are installed between the front and rear fixed beams 6. In use, the external auxiliary rails are first connected to the tracks 3, causing the lifting beams 7 to descend to their lowest position, and the concrete slab requiring steam curing is then placed on the tracks. The steam-pressurized concrete slab is placed on the fixed beam 6, and the placement frame 2 is pushed so that it enters the curing chamber 1 along the external auxiliary rail and track 3, sealing the curing chamber 1. Then, steam is supplied into the curing chamber 1 through the steam nozzle 4 to steam-cur the steam-pressurized concrete slab. During the curing process, the steam-pressurized concrete slab is switched from being supported by the fixed beam 6 to being supported by the lifting beam 7 by the rising beam 7. This facilitates the adjustment of the support position, thereby improving the full contact between the steam and the steam-pressurized concrete slab, preventing the supported position from being uncured, facilitating use, and improving the curing effect.

[0021] As a technical optimization solution of this utility model, specifically as follows: Figure 2 and Figure 3As shown, a steam supply pipe 8 is fixedly installed on the outside of the curing chamber 1, and the steam supply pipe 8 is connected to the steam nozzle 4. A steam exhaust valve 9 is fixedly installed on one side of the upper end of the curing chamber 1, and a chamber door 10 is hinged to one end of the curing chamber 1. Through the steam supply pipe 8, external steam can be injected into the interior of the curing chamber 1 through the steam nozzle 4 to steam cure the steam-pressurized concrete slab inside the curing chamber 1. Through the steam exhaust valve 9, when too much steam is supplied, a high-pressure state is formed inside the curing chamber 1, which can be relieved through the steam exhaust valve 9. To improve the stability of the pressure inside the curing chamber 1, and to facilitate the sealing of the curing chamber 1 after the placement rack 2 is pushed into the curing chamber 1 through the chamber door 10, the placement rack 2 is equipped with rollers 11 arranged in an array on both sides of its lower end. The placement rack 2 is slidably placed on the track 3 by the rollers 11. When the placement rack 2 is pushed, the rollers 11 rotate on the track 3. The track 3 has a concave structure, which facilitates the guidance of the placement rack 2 and avoids the steam-pressurized concrete plate on the placement rack 2 from contacting the inner wall of the curing chamber 1 and causing collisions.

[0022] As a technical optimization solution of this utility model, specifically as follows: Figure 4 and Figure 5As shown, both the fixed beam 6 and the lifting beam 7 have concave structures, which facilitates the limiting of both sides of the steam-pressurized concrete slab when placing it, preventing slippage. A first hydraulic cylinder 12 and a second hydraulic cylinder 13 are respectively installed on the upper sides of the horizontal plate 5. The lifting beam 7 is mounted on the horizontal plate 5 via the first hydraulic cylinder 12 and the second hydraulic cylinder 13. The lifting beam 7 is raised and lowered by extending and retracting the telescopic ends of the first hydraulic cylinder 12 and the second hydraulic cylinder 13, facilitating the switching of the support position of the steam-pressurized concrete slab. A hinge seat 14 is installed on the upper end of the first hydraulic cylinder 12. The first hydraulic cylinder 12 is fixedly connected to the lower surface of one end of the lifting beam 7 via the hinge seat 14. When the lifting beam 7 rises, if the extension length of the second hydraulic cylinder 13 is greater than the extension length of the first hydraulic cylinder 12, one end of the lifting beam 7 rotates along the hinge seat 14, causing the lifting beam 7 to tilt. This results in the steam-pressurized concrete slab being in a slightly tilted state, and the steam... The nozzle 4 is installed at an angle downwards, so that the impact force of the steam spray can easily blow off the water droplets condensed on the surface of the steam-pressurized concrete slab, preventing water droplets from adhering and affecting the curing effect. The upper end of the second hydraulic cylinder 13 is fixedly installed with a slider 15, and the upper surface of the slider 15 is an arc-shaped structure. The second hydraulic cylinder 13 is slidably connected to one end of the lower surface of the lifting beam 7 through the slider 15. When the steam-pressurized concrete slab is tilted, the slider 15 at the telescopic end of the second hydraulic cylinder 13 slides at the lower end of the lifting beam 7 to avoid jamming. A limit frame 16 is fixedly installed on one side of the lower surface of the lifting beam 7. The upper end of the slider 15 is located inside the limit frame 16. When the slider 15 slides on the lifting beam 7, the slider 15 slides along the limit frame 16, which not only facilitates the guidance of the slider 15, but also limits the extension length of the second hydraulic cylinder 13, thereby controlling the tilt degree of the steam-pressurized concrete slab and preventing the tilt angle from being too large.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A steam curing apparatus for steam-cured concrete panels, characterized by: The device includes a maintenance chamber (1) and a placement rack (2). The lower sides of the interior of the maintenance chamber (1) are symmetrically equipped with rails (3). The placement rack (2) is slidably placed on the rails (3). The interior of the maintenance chamber (1) is equipped with an array of steam nozzles (4). The steam nozzles (4) are inclined downwards. The two sides of the placement rack (2) are fixedly equipped with an array of horizontal plates (5). Fixed beams (6) are fixedly installed on the horizontal plates (5) in a symmetrical manner. Lifting beams (7) are installed between the fixed beams (6) distributed in the front and back.

2. The steam pressurized concrete panel steam curing apparatus of claim 1, wherein: A steam supply pipe (8) is fixedly installed on the outside of the maintenance chamber (1), and the steam supply pipe (8) is connected to the steam nozzle (4). A steam exhaust valve (9) is fixedly installed on one side of the upper end of the maintenance chamber (1), and a chamber door (10) is hinged to one end of the maintenance chamber (1).

3. The steam pressurized concrete panel steam curing apparatus of claim 1, wherein: The lower end of the placement rack (2) is equipped with rollers (11) arranged in an array on both sides, and the placement rack (2) is slidably placed on the track (3) by means of the rollers (11).

4. The steam pressurized concrete panel steam curing apparatus of claim 1, wherein: Both the fixed beam (6) and the lifting beam (7) are concave structures.

5. The steam pressurized concrete panel steam curing apparatus of claim 1, wherein: The upper sides of the horizontal plate (5) are respectively equipped with a first oil cylinder (12) and a second oil cylinder (13), and the lifting beam (7) is installed on the horizontal plate (5) through the first oil cylinder (12) and the second oil cylinder (13).

6. The steam pressurized concrete panel steam curing apparatus of claim 5, wherein: The upper end of the first hydraulic cylinder (12) is equipped with a hinge seat (14), and the first hydraulic cylinder (12) is fixedly connected to the lower surface of one end of the lifting beam (7) through the hinge seat (14).

7. The steam pressurized concrete panel steam curing apparatus of claim 5, wherein: The upper end of the second oil cylinder (13) is fixedly installed with a slider (15), and the upper surface of the slider (15) is an arc-shaped structure. The second oil cylinder (13) is slidably connected to one end of the lower surface of the lifting beam (7) through the slider (15).

8. The steam pressurized concrete panel steam curing apparatus of claim 7, wherein: A limiting frame (16) is fixedly installed on one side of the lower surface of the lifting beam (7), and the upper end of the slider (15) is located inside the limiting frame (16).

Images