Steam-curing kiln and production line

Abstract

The utility model discloses a steam-curing kiln and a production line, and relates to the technical field of prefabricated shield segment production, the steam-curing kiln is used for a shield segment mold, the steam-curing kiln comprises a steam-curing kiln body, a control mechanism, a plurality of steam-curing mechanisms and a plurality of temperature measuring structures, the steam-curing kiln body forms a steam-curing space for accommodating the shield segment mold; the plurality of steam-curing mechanisms are accommodated in the steam-curing space; the number of the temperature measuring structures is consistent with that of the preformed holes, and the temperature measuring structures and the preformed holes are arranged in a one-to-one correspondence manner; each temperature measuring structure extends into the corresponding preformed hole and the corresponding reserved pipeline; the plurality of temperature measuring structures and the plurality of steam curing mechanisms are electrically connected with the control mechanism; by arranging the steam curing mechanism and the temperature measuring structure, accurate steam curing of concrete in the shield segment mold is achieved, controllability of the steam curing process is improved, production defects caused by temperature fluctuation are reduced, production efficiency is improved, and quality of prefabricated shield segments is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated shield segment production, in particular to a steaming kiln and a production line. Background Art

[0002] Shield tunneling technology, a key tool in modern urban tunnel construction, is widely used in projects such as subways and underground pipeline corridors. During the prefabrication of shield segments, concrete curing technology has evolved from natural curing to artificial curing. Initially, natural curing methods were used for prefabricated concrete, but this curing was unstable due to weather and environmental conditions. With the development of shield tunneling technology, artificial curing has gradually become the mainstream method, improving concrete strength and durability by controlling temperature and humidity.

[0003] At present, the steam curing of concrete in shield segment molds mainly relies on centrally installed steam pipes, using uniform temperature and humidity for steam curing.

[0004] However, due to the differences in heating conditions of the concrete in different areas of the shield segment mold, the concrete temperature in some areas is too high or too low, which causes cracks and affects the overall performance of the prefabricated shield segment. Utility Model Content

[0005] The main purpose of the utility model is to propose a steam curing kiln and a production line, aiming to solve the problem of cracks caused by uneven temperature distribution in the concrete of shield segment molds during the steam curing process.

[0006] To achieve the above-mentioned object, the steam curing kiln proposed in the present invention is used for a shield segment mold, wherein the shield segment mold is filled with concrete, and the concrete is coated with a segment reinforcement cage and a plurality of reserved pipes. A side wall of the shield segment mold is provided with a plurality of reserved holes, the number of the reserved holes being consistent with the number of the reserved pipes and being arranged in a one-to-one correspondence, and each of the reserved holes is connected to its corresponding reserved pipe;

[0007] The steaming kiln comprises:

[0008] A steaming kiln body, wherein the steaming kiln body forms a steaming space for accommodating the shield segment mold;

[0009] a door body, the door body being arranged on the steaming kiln body, the door body being movable between an open position for opening the steaming space and a closed position for closing the steaming space;

[0010] A plurality of steaming curing mechanisms, each of which is accommodated in the steaming curing space, and each of which is spaced apart on the top of the steaming curing kiln body along the length direction of the shield segment mold;

[0011] A plurality of temperature measuring structures, each of which is provided on a bracket, the bracket being spaced apart on a side of the shield segment mold having the plurality of pre-reserved holes, the bracket being connected to the inner wall of the steaming kiln body, the number of the temperature measuring structures being consistent with the number of the pre-reserved holes and being provided in a one-to-one correspondence, each of the temperature measuring structures extending into a corresponding pre-reserved hole and a corresponding pre-reserved pipe;

[0012] The control mechanism, the plurality of temperature measuring structures and the plurality of steaming mechanisms are all electrically connected to the control mechanism.

[0013] In one embodiment, each of the temperature measuring structures includes a mounting tube and a temperature sensor, one end of the mounting tube is detachably connected to the bracket, and the other end of the mounting tube is formed with a groove, the temperature sensor is inserted into the groove, the temperature sensor extends into the corresponding reserved hole and the corresponding reserved pipe, and the temperature sensor is electrically connected to the control mechanism.

[0014] In one embodiment, the outer diameter of the installation cylinder is smaller than the inner diameter of the reserved hole.

[0015] In one embodiment, the outer shell of the mounting cylinder is provided with a heat insulating sleeve.

[0016] In one embodiment, each of the steaming mechanisms includes a hanger, a mounting plate and a steam generating device, one end of the hanger is installed on the top of the steaming kiln body, the other end of the hanger is connected to the mounting plate, the steam generating device is installed on the mounting plate, and the steam generating device is electrically connected to the control mechanism.

[0017] In one embodiment, the mounting plate is spaced apart above the shield segment mold, and the mounting plate has a curvature that matches the shield segment mold.

[0018] In one embodiment, a plurality of vent holes are formed on the mounting plate, and the plurality of vent holes are connected to the steam generating device through a pipe.

[0019] In one embodiment, a receiving space is formed between the mounting plate and the top wall of the steam curing kiln body, and the steam generating device is accommodated in the receiving space.

[0020] In one embodiment, the bracket is arched upward from bottom to top, and has a curvature that matches the shield segment mold.

[0021] The utility model also provides a production line, which uses the steaming kiln as described above.

[0022] The technical solution of the present invention realizes precise steaming of concrete in shield segment molds by setting up multiple steaming mechanisms and temperature measuring structures in conjunction with a control mechanism. Each steaming mechanism can operate independently, so that the steaming kiln can adapt to concrete of different specifications and characteristics. At the same time, multiple steaming mechanisms ensure that the steam can evenly cover the entire shield segment mold, so that the concrete is evenly heated during the steaming process. Multiple temperature measuring structures monitor the temperature changes of the concrete in the shield segment mold in real time, and cooperate with multiple steaming mechanisms. They can not only capture the temperature information of each area in a timely manner, but also adjust the steam supply according to these data, thereby ensuring that the temperature of the concrete in each area of ​​the shield segment mold is maintained within the preset temperature requirement range. This greatly reduces the risk of concrete cracks caused by uneven temperature in traditional steaming methods, and significantly improves the overall performance and quality of prefabricated shield segments. In addition, this technical solution significantly reduces production defects caused by temperature fluctuations by improving the controllability of the steaming process, thereby improving the strength and durability of prefabricated shield segments. This not only improves production efficiency, but also provides a guarantee for the long-term use safety of prefabricated shield segments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0024] Figure 1 This is a structural diagram of an embodiment of a steaming kiln provided by the present invention;

[0025] Figure 2 A schematic structural diagram of another embodiment of the steam curing kiln provided by the present invention;

[0026] Figure 3 This is a structural diagram of an embodiment of a steaming mechanism provided by the present invention;

[0027] Figure 4 A schematic structural diagram of an embodiment of a shield segment mold provided by the present invention;

[0028] Figure 5 This is a structural diagram of an embodiment of the control mechanism provided by the utility model.

[0029] Description of Figure Numbers:

[0030] 10. Shield segment mold; 11. Reserved hole; 20. Steaming kiln body; 21. Steaming space; 30. Steaming mechanism; 40. Temperature measuring structure; 50. Bracket; 60. Control mechanism; 41. Mounting tube; 42. Temperature sensor; 22. Hanging rack; 23. Mounting plate; 24. Steam generating device; 25. Vent; 26. Accommodation space.

[0031] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] At present, the steam curing of concrete in shield segment molds mainly relies on centrally installed steam pipes, using uniform temperature and humidity for steam curing.

[0036] However, significant differences in steam curing temperatures between different areas of the shield segment mold can easily lead to localized overheating of the concrete, which can cause cracks and compromise the overall performance of the prefabricated shield segments. Existing technologies often lack targeted temperature monitoring and adjustment methods, preventing precise management and making temperature fluctuations during the steam curing process difficult to control. Furthermore, traditional steam curing methods consume a lot of energy and have limited environmental adaptability, increasing maintenance costs.

[0037] In order to solve this technical problem, the utility model proposes a steaming kiln and a production line.

[0038] See also Figures 1 to 5 In one embodiment of the present invention, the steaming kiln is used for a shield segment mold 10. The shield segment mold 10 is filled with concrete, and the concrete is coated with a segment steel cage and a plurality of reserved pipes. A plurality of reserved holes 11 are opened on one side wall of the shield segment mold 10. The number of the reserved holes 11 is consistent with the number of the reserved pipes and is arranged one-to-one. Each reserved hole 11 is connected to its corresponding reserved pipe; the steaming kiln includes a steaming kiln body 20, a door body, a control mechanism 60, a plurality of steaming mechanisms 30 and a plurality of temperature measuring structures 40. The steaming kiln body 20 forms a steaming space 21 for accommodating the shield segment mold 10; the door body is arranged on the steaming kiln body 20, and the door body can be opened when the steaming space 21 is opened. It moves between an open position and a closed position for closing the steaming space 21; multiple steaming mechanisms 30 are all accommodated in the steaming space 21, and multiple steaming mechanisms 30 are arranged at intervals on the top of the steaming kiln body 20 along the length direction of the shield pipe segment mold 10; multiple temperature measuring structures 40 are all arranged on the bracket 50, and the bracket 50 is arranged at intervals on one side of the shield pipe segment mold 10 where multiple reserved holes 11 are opened. The bracket 50 is connected to the inner wall of the steaming kiln body 20. The number of temperature measuring structures 40 is consistent with the number of reserved holes 11 and is arranged one by one. Each temperature measuring structure 40 extends into the corresponding reserved hole 11 and the corresponding reserved pipe; the multiple temperature measuring structures 40 and the multiple steaming mechanisms 30 are all electrically connected to the control mechanism 60.

[0039] Specifically, the steam curing kiln body 20 forms a steam curing space 21 specifically for accommodating shield segment molds 10. A door is mounted on the steam curing kiln body 20 and can move between an open and closed position. When the door is in the open position, the shield segment molds 10 can be easily moved into and out of the steam curing space 21. When the door is in the closed position, the steam curing space 21 is sealed to facilitate the steam curing process. This makes the steam curing process more flexible and facilitates daily maintenance and management for operators.

[0040] Multiple steaming mechanisms 30 are located within the steaming space 21 and spaced apart along the length of the shield segment mold 10. This ensures uniform steam distribution across the entire shield segment mold 10, improving the uniformity of concrete heating during the steaming process. Furthermore, each steaming mechanism 30 can operate independently, further enhancing the flexibility and adaptability of the steaming kiln and facilitating optimized steaming for varying production environments and concrete properties.

[0041] Multiple temperature-measuring structures 40 are mounted on a bracket 50 and connected to the inner wall of the steam-curing kiln body 20. The number of temperature-measuring structures 40 matches the number of pre-set holes 11, ensuring that each temperature-measuring structure 40 accurately monitors the temperature of its corresponding area. Each temperature-measuring structure 40 extends into the corresponding pre-set holes 11 and pre-set conduits, acquiring real-time concrete temperature information and transmitting this data to the control mechanism 60 for processing. This real-time monitoring effectively reflects actual concrete temperature changes during the steam-curing process, enabling timely adjustments to the operating status of the steam-curing mechanism 30 to ensure that the temperature of each concrete area remains within the preset required range.

[0042] Furthermore, the multiple temperature-measuring structures 40 and the multiple steam-curing mechanisms 30 are electrically connected to a control mechanism 60, forming a closed-loop control system. Through intelligent regulation by the control mechanism 60, the steam-curing kiln automatically adjusts steam supply based on real-time temperature data, achieving zoned steam-curing. This significantly improves steam-curing accuracy and avoids cracking caused by uneven temperatures.

[0043] In the technical solution provided by the present invention, by providing multiple steaming mechanisms 30 and temperature measuring structures 40, in conjunction with a control mechanism 60, precise steaming of the concrete in the shield segment mold 10 is achieved. Each steaming mechanism 30 can operate independently, allowing the steaming kiln to adapt to concrete of different specifications and characteristics. At the same time, the multiple steaming mechanisms 30 ensure that the steam can evenly cover the entire shield segment mold 10, so that the concrete is evenly heated during the steaming process. The multiple temperature measuring structures 40 monitor the temperature changes of the concrete in the shield segment mold 10 in real time, and in conjunction with the multiple steaming mechanisms 30, not only can they capture the temperature information of each area in a timely manner, but they can also adjust the steam supply based on this data, thereby ensuring that the temperature of the concrete in each area of ​​the shield segment mold 10 is maintained within the preset temperature requirement range. This greatly reduces the risk of concrete cracks caused by uneven temperature in traditional steaming methods, and significantly improves the overall performance and quality of prefabricated shield segments. In addition, this technical solution significantly reduces production defects caused by temperature fluctuations by improving the controllability of the steaming process, thereby improving the strength and durability of prefabricated shield segments. This not only improves production efficiency, but also provides a guarantee for the long-term use safety of prefabricated shield segments.

[0044] Please continue reading Figures 3 to 5In an embodiment of the present utility model, each temperature measuring structure 40 includes a mounting tube 41 and a temperature sensor 42. One end of the mounting tube 41 is detachably connected to the bracket 50. The other end of the mounting tube 41 is formed with a groove. The temperature sensor 42 is inserted into the groove. The temperature sensor 42 extends into the corresponding reserved hole 11 and the corresponding reserved pipe. The temperature sensor 42 is electrically connected to the control mechanism 60.

[0045] It should be noted that the temperature sensor 42 may be, but is not limited to, an NTC thermistor sensor in the prior art.

[0046] Specifically, each temperature measurement structure 40 includes a mounting tube 41 and a temperature sensor 42. One end of the mounting tube 41 is detachably connected to the bracket 50 using a conventional clamp or bolt, making maintenance and replacement of the temperature measurement structure 40 more convenient. The other end of the mounting tube 41 is formed with a groove into which the temperature sensor 42 is inserted. This allows the temperature sensor 42 to remain stable within the mounting tube 41, ensuring that its position does not shift during temperature measurement, thereby improving temperature measurement accuracy.

[0047] More specifically, the temperature sensor 42 extends into the corresponding reserved hole 11 and the reserved pipe, effectively monitoring temperature changes within the concrete in the shield segment mold 10. This not only enables the temperature sensor 42 to accurately acquire temperature data from various areas of the concrete, but also provides excellent conditions for subsequent data transmission and processing. The temperature sensor 42 is electrically connected to the control mechanism 60, ensuring that the acquired temperature information is transmitted to the control mechanism 60 in real time for analysis and processing. Based on this real-time temperature data, the control mechanism 60 can rapidly adjust the operating state of the steaming mechanism 30 to achieve precise control of the concrete steaming process.

[0048] In the embodiment of the present invention, the outer diameter of the installation cylinder 41 is smaller than the inner diameter of the reserved hole 11 .

[0049] Specifically, the outer diameter of the mounting tube 41 is smaller than the inner diameter of the pre-set hole 11. This ensures that the mounting tube 41 can be smoothly inserted into the pre-set hole 11, maintaining sufficient clearance during placement. This clearance not only facilitates installation and removal but also effectively prevents potential tightening due to thermal expansion or other external factors.

[0050] In the embodiment of the present invention, the outer periphery of the mounting tube 41 is provided with a heat insulating sleeve.

[0051] Specifically, the thermal insulation sleeve is made of polyester fiber, a material commonly used in the prior art. It isolates the temperature measurement structure 40 from the effects of high-temperature steam generated during the steaming process, thereby ensuring the accuracy and stability of the temperature sensor 42. By wrapping the thermal insulation sleeve around the mounting tube 41, interference from external heat sources on the temperature sensor 42 is reduced, thereby improving temperature measurement accuracy. This ensures the stability of the temperature measurement structure 40 during long-term operation, ensuring the long-term effectiveness of the real-time monitoring function.

[0052] Please continue reading Figure 3 and Figure 5 In an embodiment of the present invention, each steaming mechanism 30 includes a hanger 22, a mounting plate 23 and a steam generating device 24. One end of the hanger 22 is installed on the top of the steaming kiln body 20, and the other end of the hanger 22 is connected to the mounting plate 23. The steam generating device 24 is installed on the mounting plate 23, and the steam generating device 24 is electrically connected to the control mechanism 60.

[0053] It should be noted that the steam generating device 24 is a water-tube steam generator or an electrically heated steam generator in the prior art, and the control mechanism 60 is also in the prior art.

[0054] Specifically, each steaming mechanism 30 includes a bracket 22, a mounting plate 23, and a steam generator 24. One end of the bracket 22 is mounted on the top of the steaming kiln body 20, ensuring the stability and safety of the steaming mechanism 30 while also providing an ideal location for the uniform release of steam. The other end of the bracket 22 is connected to the mounting plate 23, which serves as a support platform for the steam generator 24, ensuring the stability and continuous operation of the equipment. On this basis, the steam generator 24 is mounted on the mounting plate 23 and is primarily responsible for converting water into steam and releasing it evenly into the steaming space 21. This effectively provides the required amount of steam, thereby meeting the heat requirements of the concrete during the steaming process and ensuring uniform heating of the concrete.

[0055] More specifically, the steam generator 24 is electrically connected to a control mechanism 60, enabling intelligent control of the steam curing process. Based on real-time data collected by the temperature sensor 42, the control mechanism 60 automatically adjusts the operating state of the steam generator 24, such as the amount of steam generated and the frequency of steam release, to ensure that the temperature of the concrete remains within a preset range during the curing process. This closed-loop control system significantly improves the accuracy of the concrete curing process, enabling timely response to temperature fluctuations and avoiding potential problems caused by uneven steam supply.

[0056] In an embodiment of the present invention, the mounting plate 23 is spaced apart and disposed above the shield segment mold 10 , and the mounting plate 23 has a curvature that matches the shield segment mold 10 .

[0057] Specifically, the spacing of the mounting plates 23 creates an effective steam transmission channel between the shield segment mold 10 and the mounting plates 23, ensuring that the steam is not blocked or obstructed, allowing it to flow freely into the interior of the shield segment mold 10, thereby heating and moistening the concrete. This not only improves steam utilization efficiency but also helps maintain temperature uniformity within the mold.

[0058] Furthermore, the curvature of the mounting plate 23 matches the shield segment mold 10, allowing the steam to better adhere to the top surface of the shield segment mold 10, reducing the occurrence of cold and hot spots and helping to maintain the overall temperature consistency of the concrete. This ensures that the steam effectively covers every area of ​​the mold, providing excellent conditions for uniform steam curing of the concrete.

[0059] In the embodiment of the present invention, a plurality of vent holes 25 are formed on the mounting plate 23 , and the plurality of vent holes 25 are connected to the steam generating device 24 through pipes.

[0060] Specifically, the multiple vents 25 allow steam to be evenly released from the mounting plate 23 into the shield segment mold 10, ensuring that the steam covers every part of the shield segment mold 10. This effectively prevents uneven drying or inadequate hardening of the concrete due to insufficient steam. This uniform steam distribution is crucial for improving the strength and performance of concrete.

[0061] Each vent hole 25 is connected to the steam generating device 24 through a pipeline, which can flexibly adjust the supply amount and flow rate of steam, further ensuring the uniform diffusion of steam in the shield segment mold 10.

[0062] Please continue reading Figure 1 and Figure 2 In an embodiment of the present invention, an accommodating space 26 is formed between the mounting plate 23 and the top wall of the steam curing kiln body 20 , and the steam generating device 24 is accommodated in the accommodating space 26 .

[0063] Specifically, the accommodating space 26 provides an independent working area for the steam generating device 24, effectively preventing the direct impact of high temperature and steam on other components, thereby increasing the service life of the entire device. It also reduces steam leakage, making the steam utilization efficiency in the steam curing space 21 higher.

[0064] Secondly, the steam generating device 24 is accommodated in the accommodating space 26, which can effectively reduce the external space occupied by the equipment, make the overall structure more compact, and improve the flexibility and adaptability of the steam-curing kiln.

[0065] In addition, the accommodating space 26 also facilitates the maintenance and overhaul of the steam generating device 24. When maintenance is required, the operator can easily disassemble and assemble the steam generating device 24 without having to disassemble other parts of the equipment, thereby reducing the complexity and time cost of maintenance.

[0066] In an embodiment of the present invention, the bracket 50 is arched upward from bottom to top, and the bracket 50 has an arc that is adapted to the shield segment mold 10.

[0067] Specifically, first, the bracket 50 that arches upward from the bottom can effectively improve the bearing capacity and stability of the bracket 50 itself, ensuring that the load from the temperature measuring structure 40 can be evenly distributed during the steam curing process, reducing deformation or damage caused by gravity. The overall strength of the bracket 50 is effectively improved, allowing it to maintain stability during long-term use. Secondly, the bracket 50 is adapted to the curvature of the shield segment mold 10, so that the bracket 50 can fit closely to the shape of the shield segment mold 10, ensuring that the temperature measuring structure 40 can better match the reserved hole 11 of the shield segment mold 10, and improving the reliability of temperature monitoring during the steam curing process. In addition, the arched bracket 50 also provides a more ideal path for the flow of steam to a certain extent, allowing the steam to circulate and diffuse better within the steam curing space 21, further improving the steam curing efficiency. This fluidity not only helps promote heat transfer, but also effectively avoids the accumulation of moisture, ensuring the steam curing quality of concrete.

[0068] The present invention also provides a production line utilizing the aforementioned steam-curing kiln. The specific structure of the steam-curing kiln is similar to that of the aforementioned embodiments. Since this production line utilizes all of the technical solutions of all of the aforementioned embodiments, it exhibits at least all of the beneficial effects provided by the technical solutions of the aforementioned embodiments, which will not be further elaborated here. The production line includes multiple automated processes, such as concrete pouring, the installation and release of curing membranes, and the monitoring and adjustment of the curing environment, ensuring efficient and consistent production. Combined with the aforementioned steam-curing kiln, it can guarantee the quality and consistency of concrete products, meeting the demands of modern construction projects.

[0069] The above are merely exemplary embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A steaming kiln, characterized in that: Used for a shield segment mold, the shield segment mold is filled with concrete, the concrete is coated with a segment steel cage and a plurality of reserved pipes, a side wall of the shield segment mold is provided with a plurality of reserved holes, the number of the reserved holes is consistent with the number of the reserved pipes and is arranged in a one-to-one correspondence, and each of the reserved holes is connected to the corresponding reserved pipe; The steaming kiln comprises: A steaming kiln body, wherein the steaming kiln body forms a steaming space for accommodating the shield segment mold; a door body, the door body being arranged on the steaming kiln body, the door body being movable between an open position for opening the steaming space and a closed position for closing the steaming space; A plurality of steaming curing mechanisms, each of which is accommodated in the steaming curing space, and each of which is spaced apart on the top of the steaming curing kiln body along the length direction of the shield segment mold; A plurality of temperature measuring structures, each of which is provided on a bracket, the bracket being spaced apart on a side of the shield segment mold having the plurality of pre-reserved holes, the bracket being connected to the inner wall of the steaming kiln body, the number of the temperature measuring structures being consistent with the number of the pre-reserved holes and being provided in a one-to-one correspondence, each of the temperature measuring structures extending into a corresponding pre-reserved hole and a corresponding pre-reserved pipe; The control mechanism, the plurality of temperature measuring structures and the plurality of steaming mechanisms are all electrically connected to the control mechanism.

2. The steaming kiln according to claim 1, wherein: Each of the temperature measuring structures includes a mounting tube and a temperature sensor. One end of the mounting tube is detachably connected to the bracket, and the other end of the mounting tube is formed with a groove. The temperature sensor is inserted into the groove. The temperature sensor extends into the corresponding reserved hole and the corresponding reserved pipe. The temperature sensor is electrically connected to the control mechanism.

3. The steaming kiln according to claim 2, wherein: The outer diameter of the installation cylinder is smaller than the inner diameter of the reserved hole.

4. The steaming kiln according to claim 3, characterized in that: The outer shell of the installation cylinder is provided with a heat insulation sleeve.

5. The steam curing kiln according to any one of claims 1 to 4, characterized in that: Each of the steaming mechanisms includes a hanger, a mounting plate and a steam generating device. One end of the hanger is installed on the top of the steaming kiln body, and the other end of the hanger is connected to the mounting plate. The steam generating device is installed on the mounting plate, and the steam generating device is electrically connected to the control mechanism.

6. The steaming kiln according to claim 5, characterized in that: The mounting plate is spaced apart and arranged above the shield segment mold, and the mounting plate has a curvature that is adapted to the shield segment mold.

7. The steaming kiln according to claim 5, characterized in that: A plurality of vent holes are formed on the mounting plate, and the plurality of vent holes are connected to the steam generating device through pipes.

8. The steaming kiln according to claim 5, wherein: An accommodating space is formed between the mounting plate and the top wall of the steaming kiln body, and the steam generating device is accommodated in the accommodating space.

9. The steaming kiln according to any one of claims 1 to 4, characterized in that: The bracket is arched upward from bottom to top, and has an arc that is adapted to the shield segment mold.

10. A production line, characterized in that: The steam curing kiln according to any one of claims 1 to 9 is used.

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