Concrete member steam curing device

Abstract

The utility model relates to a concrete member steam curing device which comprises a steam generator used for providing steam and a mold used for forming a concrete member. The steam pipe is arranged on the inner side wall of the mold in a winding mode and connected with the steam generator through a connecting pipe, the upper end of the mold is covered with the tent cover, and a plurality of through holes are distributed in the steam pipe in the length direction of the steam pipe at intervals. The steam pipe is arranged on the inner side wall of the mold and can be used for directly carrying out steam curing on a concrete member without mold stripping, compared with an existing curing mode needing a curing kiln or a curing box, the steam curing device can be suitable for production curing of a large concrete member, after pouring is completed, the member does not need to be moved, on-site curing is not needed, and the production efficiency is improved. And the purposes of convenient operation and efficient production are achieved while steam curing is carried out on the concrete member.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete component curing devices, in particular to a concrete component steam curing device. Background Art

[0002] Precast concrete components are the main body of building structures, and their production quality is of vital importance. In order to accelerate the hydration of materials, increase the rate of strength development, and ensure the production quality of components, precast concrete components are generally maintained by different means after production. For precast components with larger sizes and higher strength requirements, such as wind turbine towers, natural or standard maintenance generally cannot achieve the required strength in a short period of time. Therefore, it is essential to ensure stable and rapid growth of strength through economical, convenient and reliable high-temperature maintenance.

[0003] Patent CN215702676U discloses a steam curing device for the production of prefabricated concrete products, but the device is only applicable to the curing of flat-type prefabricated components, and cannot be applied to the curing of vertical annular components. Patent CN215511584U discloses "a steam curing device for pipe segment production", which places the pipe segment in a curing box for steam curing, and patent CN117445163A discloses "an energy-saving and environmentally friendly pipe segment steam curing kiln and its curing method". Both of these curing methods require the establishment of a steam curing kiln or curing box to steam-cure the pipe segment. For large concrete components, the kiln curing method requires large investment and cumbersome operation, which is not conducive to the rapid curing and turnover of components. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a steam curing device for concrete components with simple operation and high production efficiency in view of the deficiencies in the prior art.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A steam curing device for concrete components, comprising a steam generator for providing steam, a mold for forming concrete components, the top of the mold is open, the steam curing device for concrete components also includes a steam pipe arranged around the inner wall of the mold and connected to the steam generator through a connecting pipe, and a canopy covering the upper end of the mold, and a plurality of through holes are distributed at intervals along the length direction of the steam pipe.

[0007] According to some implementation aspects of the utility model, each of the through holes is opened at the lower side of the steam pipe, and the through holes are opened toward the inner side wall of the mold.

[0008] In some specific embodiments, in the radial direction of the steam pipe, a connecting line between the center of the steam pipe and the center of the through hole forms an angle of 15 to 75 degrees with the horizontal direction.

[0009] In some specific embodiments, the mold is an annular mold, and the steam pipe is spirally wound around the inner wall of the mold.

[0010] In some specific implementations, the distance between the steam pipe and the inner wall of the mold is 15 to 20 cm; the upper and lower spacing of the steam pipe is 30 to 40 cm.

[0011] In some embodiments, the mold includes an inner mold and an outer mold surrounding the outer side of the inner mold, and a molding cavity for a concrete component is provided between the inner mold and the outer mold. The mold also includes a sealing plate for closing the bottom end of the inner mold, and the steam pipe is arranged around the inner wall of the inner mold.

[0012] In some specific embodiments, the outer side wall of the outer mold and the inner side wall of the inner mold are respectively provided with ribs; the inner mold and the outer mold are respectively made of cast iron.

[0013] In some specific embodiments, the connecting pipe is detachably connected to the steam pipe and the steam generator.

[0014] In some specific embodiments, the concrete component steam curing device further includes a fixing clamp for fixing the steam pipe to the inner wall of the mold.

[0015] In some specific implementations, the canopy is a waterproof and heat-insulating canopy; the steam pipe and the connecting pipe are respectively steel pipes.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] The utility model arranges a steam pipe on the inner wall of the mold, which can be used to directly perform steam curing on the concrete components that have not been demolded. Compared with the existing curing method that requires a curing kiln or a curing box, the utility model can be applicable to the production and curing of large concrete components. After the pouring is completed, there is no need to move the components and curing can be carried out on the spot. While the concrete components are steam-cured, the purpose of convenient operation and efficient production is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A steam curing device for concrete components according to a representative embodiment of the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the opening of the steam pipe of the steam curing device for concrete components;

[0020] In the figure: 1, canopy; 2, steam pipe; 3, connecting pipe; 4, steam generator; 5, fixing clamp; 6, mold; 7, through hole. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] See also Figure 1-2 The steam curing device for concrete components shown in the figure comprises a steam generator 4 for providing steam and a mould 6 for forming concrete components. The top of the mould 6 is open and the bottom of the mould 6 has a sealing plate.

[0023] The steam curing device for concrete components also includes a steam pipe 2 wound around the inner wall of a mold 6 and connected to a steam generator 4 through a connecting pipe 3, a canopy 1 covering the upper end of the mold 6, and a fixing clamp 5 for fixing the steam pipe 2 to the inner wall of the mold 6. The steam pipe 2 has a plurality of through holes 7 spaced apart along its length. The high-temperature steam generated by the steam generator 4 is sprayed into the interior of the mold 6 through the through holes 7 on the steam pipe 2. After a period of time, the steam will fill the internal space of the mold 6, and the concrete components on the mold 6 will be continuously cured.

[0024] Each through hole 7 is opened at the lower side of the steam pipe 2 , and the through hole 7 is opened toward the inner side wall of the mold 6 .

[0025] In some embodiments, Figure 2 As shown, in the radial direction of the steam pipe 2, the angle α between the connecting line between the center of the steam pipe 2 and the center of the through hole 7 and the horizontal direction is 15 to 75°, further 30 to 60°, specifically 45°, so that the steam can be better sprayed toward the inner wall of the mold 6 through the through hole 7.

[0026] like Figure 2 As shown, the distance H1 between the steam pipe 2 and the inner wall of the mold 6 is 15-20 cm, and the upper and lower spacing H2 of the steam pipe 2 is 30-40 cm.

[0027] In some embodiments, the mold 6 is an annular mold, and the steam pipe 2 is spirally wound around the inner wall of the mold 6. For example, the mold 6 can be used for forming large concrete components, such as a wind turbine tower.

[0028] Specifically, the mold 6 includes an inner mold and an outer mold arranged around the outer side of the inner mold. There is a molding cavity for the concrete component between the inner mold and the outer mold. The sealing plate is used to close the lower end of the inner mold. The steam pipe 2 is arranged around the inner wall of the inner mold. The outer mold is composed of multiple connectable modules to facilitate demolding of the concrete component.

[0029] The outer wall of the outer mold and the inner wall of the inner mold are respectively provided with ribs to strengthen the strength of the mold and prevent the mold from deformation; the material of the outer mold and the inner mold is cast iron, which has good thermal conductivity.

[0030] The canopy is a waterproof and heat-insulating canopy, which has the functions of heat preservation and waterproofing; the steam pipe 2 and the connecting pipe 3 are both seamless steel pipes, and the connecting pipe 3 is detachably connected to the steam pipe 2 and the steam generator 4 respectively.

[0031] The curing method of the concrete component steam curing device provided above is as follows:

[0032] Concrete is poured into the molding cavity of the mold. After molding, the top of the mold 6 is covered with a canopy 1, and the steam generator 4 is turned on. The steam is transported to the steam pipe 2 through the connecting pipe 3, and then sprayed through the through hole 7 on the steam pipe 2 to cover the inner wall of the mold 6, so that the concrete component is slowly steam-heated. After a period of time, the steam will fill the entire space inside the mold, and the concrete component will be continuously cured.

[0033] After the pouring of concrete components is completed, there is no need to move the components and they can be cured on the spot. While steam curing the concrete components, it achieves the purpose of convenient operation and efficient production. After the curing is completed, the formwork is removed and hoisted to the destination.

[0034] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A steam curing device for concrete components, comprising a steam generator for providing steam, characterized in that: The steam curing device for concrete components also includes a mold for forming concrete components, the top of the mold is open, the steam curing device for concrete components also includes a steam pipe wrapped around the inner wall of the mold and connected to the steam generator through a connecting pipe, and a canopy covering the upper end of the mold, and a plurality of through holes are spaced apart on the steam pipe along its length direction.

2. The steam curing device for concrete components according to claim 1, characterized in that: Each of the through holes is opened at the lower side of the steam pipe, and the through holes are opened toward the inner side wall of the mold.

3. The steam curing device for concrete components according to claim 2, characterized in that: In the radial direction of the steam pipe, a connecting line between the center of the steam pipe and the center of the through hole forms an angle of 15 to 75 degrees with the horizontal direction.

4. The steam curing device for concrete components according to claim 1, characterized in that: The mold is an annular mold, and the steam pipe is spirally wound around the inner wall of the mold.

5. The steam curing device for concrete components according to claim 1 or 4, characterized in that: The distance between the steam pipe and the inner wall of the mold is 15 to 20 cm; and / or the upper and lower spacing of the steam pipe is 30 to 40 cm.

6. The steam curing device for concrete components according to claim 1 or 4, characterized in that: The mold includes an inner mold and an outer mold surrounding the outer side of the inner mold, a forming cavity for a concrete component is provided between the inner mold and the outer mold, the mold also includes a sealing plate, the sealing plate is used to close the bottom end of the inner mold, and the steam pipe is arranged around the inner side wall of the inner mold.

7. The steam curing device for concrete components according to claim 6, characterized in that: The outer side wall of the outer mold and the inner side wall of the inner mold are respectively provided with ribs; and / or the inner mold and the outer mold are respectively made of cast iron.

8. The steam curing device for concrete components according to claim 1, characterized in that: The connecting pipe is detachably connected to the steam pipe and the steam generator.

9. The steam curing device for concrete components according to claim 1, characterized in that: The concrete component steam curing device also includes a fixing clamp for fixing the steam pipe to the inner side wall of the mold.

10. The steam curing device for concrete components according to claim 1, characterized in that: The canopy cover is a waterproof and heat-insulating canopy cover; and / or the steam pipe and the connecting pipe are respectively steel pipes.

Images