Precast concrete unit fixed die table mineralization maintenance device

Abstract

The utility model relates to the technical field of precast concrete production and carbon dioxide resource utilization, and provides a mineralization maintenance device for a precast concrete unit fixed mold table. The mineralization maintenance cover covers the fixed mold table, and a mineralization space is defined by the mineralization maintenance cover and the fixed mold table; a bin door is arranged at the top end of the mineralization maintenance cover; the carbon dioxide gas supply system is used for introducing carbon dioxide into the mineralization space to realize mineralization; the steam heat exchange system comprises a steam boiler and a steam pipeline, the two ends of the steam pipeline are connected with the steam boiler to jointly form a steam circulation loop, and part of the steam pipeline extends into the mineralization space and supplies heat to the mineralization space. According to the utility model, efficient mineralization curing can be carried out on the precast concrete member, traditional steam curing of a fixed mold table is replaced, so that the precast concrete member is rapidly cured to form mechanical properties, and meanwhile, a new idea is provided for large-scale efficient mass production application of the mold table and resource utilization of carbon dioxide.

Description

Technical Field

[0001] The utility model relates to the technical fields of precast concrete production technology and carbon dioxide resource utilization technology, and particularly relates to a mineralization curing device for a fixed die table of precast concrete components. Background Technique

[0002] In recent years, with the booming development of green building technologies, the proportion and scale of prefabricated buildings have gradually increased. This not only helps to save resources and energy, reduce construction pollution, but also can improve production efficiency, enhance the quality and safety level of buildings, and promote the sustainable and healthy development of the construction industry. However, in the face of an increasingly large project volume and more stringent project requirements, there are higher demands for further improving the production efficiency and quality of prefabricated precast components.

[0003] The production process of precast precast concrete components is usually: formwork assembly → steel bar arrangement → embedding part arrangement → concrete pouring → curing and forming → demoulding and finished product inspection. Among them, the key to the production efficiency and quality of precast concrete components lies in the curing and forming method. The faster and more efficient the curing process is, the lower the required mold cost and supporting resource cost will be.

[0004] The most commonly used curing method for traditional precast precast components is steam curing. Through this method, the early strength of the components can be quickly improved, enabling them to reach the demoulding strength as soon as possible and improving production efficiency. However, there is a thermal damage effect on the components, generating microcracks, causing internal structural damage, and thus having an adverse impact on mechanical properties and durability. Especially for large-volume, high-height, and special-shaped components, they are not suitable for curing in a flow-through curing kiln and can only be produced using a fixed die table curing method. The fixed die table process is the most important and widely used process for the production of PC components in a fixed manner.

[0005] At present, steam curing devices / systems are generally used for the fixed die tables of precast concrete components, and there is no relevant device system for mineralization curing. When using steam curing for fixed die tables, telescopic covers / simple tarpaulins are often used, with poor sealing performance, resulting in a large amount of steam leakage and waste, difficult to accurately and uniformly control the temperature and humidity, steam condensate dripping on the surface of the components, and a long curing time cycle. This causes the quality of precast concrete components to be unstable, the production efficiency to be low, and it cannot be mass-produced and applied on a large scale. Content of the Utility Model

[0006] The utility model provides a mineralization curing device for a fixed die table of precast concrete components to solve the defects existing in the prior art and achieve the following technical effects: it can efficiently mineralize and cure precast concrete components, replacing the traditional steam curing of fixed die tables. While enabling the precast concrete components to be quickly cured to form mechanical properties, it also provides a new idea for the large-scale and high-efficiency mass production application of such die tables and the collaborative resource utilization of carbon dioxide.

[0007] The mineralization curing device for a precast concrete member fixing die table according to the first aspect embodiment of the present utility model includes:

[0008] A fixing die table for producing precast concrete members;

[0009] A mineralization curing cover, which is covered on the fixing die table and jointly defines a mineralization space with the fixing die table; a hatch door for opening or closing the mineralization space is provided at the top of the mineralization curing cover;

[0010] A carbon dioxide gas supply system for introducing carbon dioxide into the mineralization space to achieve mineralization;

[0011] A steam heat exchange system includes a steam boiler and steam pipes. Both ends of the steam pipes are connected to the steam boiler and jointly form a steam circulation loop. Part of the steam pipes extend into the mineralization space to supply heat for it.

[0012] According to an embodiment of the present utility model, the steam pipes include a steam supply pipe, steam heat exchange pipes and a return pipe. The steam supply pipe is communicated with the steam supply port of the steam boiler, the return pipe is communicated with the steam return port of the steam boiler. Two through holes are provided on the mineralization curing cover. The steam supply pipe and the return pipe are respectively connected to the steam heat exchange pipes through the two through holes. The steam heat exchange pipes are located in the mineralization space to supply heat for it.

[0013] According to an embodiment of the present utility model, the two through holes are respectively provided at both ends of the same side wall of the mineralization curing cover. The steam heat exchange pipe starts from one through hole and extends along the circumferential direction of the mineralization curing cover to the other through hole, and the steam heat exchange pipe is fixed on the inner surface of the side wall of the mineralization curing cover.

[0014] According to an embodiment of the present utility model, in the height direction of the mineralization curing cover, the two through holes and the steam heat exchange pipes are all located at the middle position of the mineralization curing cover.

[0015] According to an embodiment of the present utility model, it further includes:

[0016] A temperature control system includes a first solenoid valve, a temperature detector and a temperature controller. The temperature detector is arranged inside the hatch door of the mineralization curing cover. The first solenoid valve is arranged on the steam supply pipe. The temperature controller is used to receive the temperature detection result of the temperature detector and control the opening degree of the first solenoid valve according to the temperature detection result.

[0017] According to an embodiment of the present utility model, the carbon dioxide gas supply system includes a carbon dioxide delivery pipe and a carbon dioxide switch valve. The carbon dioxide delivery pipe extends into the mineralization space through a carbon dioxide inlet and extends outwards through a carbon dioxide outlet. Carbon dioxide spray holes are spacedly arranged on the carbon dioxide delivery pipe extending into the mineralization space for uniformly delivering gas into the mineralization space.

[0018] The inlet end of the carbon dioxide delivery pipe is connected to the outlet of a liquid carbon dioxide storage tank after pressure reduction or a carbon-containing flue gas pipeline discharged from a process industrial kiln.

[0019] According to an embodiment of the present utility model, the carbon dioxide inlet and the carbon dioxide outlet are respectively arranged at two ends of the same side wall of the mineralization curing cover. The carbon dioxide delivery pipe starts from the carbon dioxide inlet and extends along the circumferential direction of the mineralization curing cover to the carbon dioxide outlet, and the carbon dioxide delivery pipe is fixed on the inner surface of the side wall of the mineralization curing cover.

[0020] In the height direction of the mineralization curing cover, the carbon dioxide inlet, the carbon dioxide outlet, and the carbon dioxide delivery pipe are all located at the bottom position of the mineralization curing cover.

[0021] According to an embodiment of the present utility model, it further includes:

[0022] A carbon dioxide concentration control system, including a carbon dioxide concentration detector, a carbon dioxide concentration controller, and a second solenoid valve. The carbon dioxide concentration detector is arranged inside the door of the mineralization curing cover, the second solenoid valve is arranged on the carbon dioxide delivery pipe, and the carbon dioxide concentration controller is used to receive the carbon dioxide concentration detection result of the carbon dioxide concentration detector and control the opening degree of the second solenoid valve according to the carbon dioxide concentration detection result.

[0023] According to an embodiment of the present utility model, it further includes a chamber pressure detector arranged inside the door of the mineralization curing cover. An exhaust port is provided at the top of the side wall of the mineralization curing cover, and an exhaust control valve is installed on the exhaust port.

[0024] And / or, it further includes a circulation fan installed on the inner side wall of the mineralization curing cover and above the steam pipe.

[0025] According to an embodiment of the present utility model, the mineralization curing cover is a rectangular curing cover made of hard steel or acrylic material. Heat preservation films are covered and adhered to the four side walls and the top end of the mineralization curing cover, and the bottom of the mineralization curing cover is fixedly and hermetically connected to the fixed mold table.

[0026] The beneficial effects of the present utility model are as follows.

[0027] 1) The mineralization curing device for precast concrete member fixed formwork provided by the present utility model can effectively improve the mineralization reaction speed of concrete members, improve the production efficiency of precast concrete members, and enhance the stability and uniformity of the quality performance of each part of precast members. The device system is simple, easy to clean, and has wide applicability, providing a new idea for its large-scale industrial application.

[0028] 2) The mineralization curing device for precast concrete member fixed formwork provided by the present utility model completely replaces the manual adjustment of steam valves in the usual steam curing method. Only the heat exchange of the steam heat exchange pipes is used to provide the internal temperature, and the steam does not directly contact the concrete members, avoiding the adverse effects of the condensate water in traditional steam curing on the quality of concrete members, and reducing the consumption and waste of steam. The members produced by the device of the present utility model have a smooth, flat surface without peeling, good color uniformity, and significantly improved appearance quality compared with traditional fixed formwork curing, and have better mechanical strength and durability.

[0029] 3) The mineralization curing device system provided by the present utility model can accurately and stably control the temperature and CO2 concentration, has high processing efficiency, is easy to operate, accelerates the turnover of the mold, and improves the production efficiency of precast production on fixed formwork. It can also synergistically consume and utilize a large amount of CO2 gas or carbon-containing flue gas from industrial kilns, has excellent carbon reduction and carbon sequestration effects, and has significant social and environmental benefits. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0031] Figure 1 It is a structural schematic diagram of the mineralization curing device for precast concrete member fixed formwork provided by the present utility model.

[0032] Reference Signs:

[0033] 1. Fixed mold table; 2. Mineralization curing cover; 3. Thermal insulation film; 4. Steam boiler; 5. Carbon dioxide supply pipe; 6. Carbon dioxide injection holes; 7. Steam heat exchange pipes; 8. First solenoid valve; 9. Return pipe; 10. Temperature detector; 11. Temperature controller; 12. Steam supply pipe; 13. Carbon dioxide concentration detector; 14. Chamber pressure detector; 15. Circulation fan; 16. Exhaust port; 17. Exhaust control valve; 18. Carbon dioxide switch valve; 19. Second solenoid valve; 20. Carbon dioxide concentration controller; 21. Carbon dioxide inlet; 22. Through hole; 23. Chamber door; 24. Carbon dioxide outlet. Detailed implementation mode

[0034] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0035] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0036] In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0037] In the embodiments of the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0038] The following describes a mineralization curing device for a precast concrete member fixed formwork according to the present utility model with reference to the accompanying drawings. It should be noted that this device is used for efficient mineralization curing of precast concrete members. The device of the present utility model can replace traditional fixed formwork steam curing, enabling the rapid curing of precast concrete members to form mechanical properties, and at the same time providing a new idea for the large-scale and high-efficiency mass production application of such formworks and the collaborative resource utilization of carbon dioxide. The specific introduction is as follows.

[0039] As Figure 1 shown, the mineralization curing device for a precast concrete member fixed formwork according to the embodiments of the present utility model includes a fixed formwork 1, a mineralization curing cover 2, a carbon dioxide gas supply system and a steam heat exchange system.

[0040] The fixed formwork 1 is used for producing and placing precast concrete members; the mineralization curing cover 2 is covered on the fixed formwork 1, and the mineralization curing cover 2 and the fixed formwork 1 jointly define a mineralization space; a hatch door 23 for opening or closing the mineralization space is provided at the top of the mineralization curing cover 2.

[0041] The carbon dioxide gas supply system is used for introducing carbon dioxide into the mineralization space to achieve mineralization. The steam heat exchange system includes a steam boiler 4 and steam pipes. Both ends of the steam pipes are connected to the steam boiler 4 and jointly form a steam circulation loop. Part of the steam pipes extends into the mineralization space to supply heat to it.

[0042] It should be explained that mineralization curing refers to introducing carbon dioxide (CO2) into the mineralization space, and using the chemical reaction between carbon dioxide and the calcium silicate mineral phase in the concrete or the hydration products calcium hydroxide (Ca(OH)2) and calcium silicate hydrate (C-S-H) to generate calcium carbonate (CaCO3) and silica gel (SiO2∙H2O). This process can accelerate the hardening and strength development of the concrete, and at the same time improve the durability of the concrete. Further, the mineralization curing device provides heat through the steam heat exchange system to keep the mineralization space within a suitable temperature range to promote the mineralization reaction and ensure uniform curing of the concrete.

[0043] Therefore, it can be understood that in the curing device of the present utility model, after the precast concrete component is cast and formed in the mold on the fixed mold table 1, the precast concrete component is covered by the mineralization curing cover 2 in the mineralization space inside it. During the mineralization process, the carbon dioxide gas supply system will supply carbon dioxide gas into the mineralization space to carry out mineralization curing on the precast concrete component. At the same time, the high-temperature steam in the steam boiler 4 flows in the steam pipeline. In this way, the steam pipeline extending into the mineralization space will heat the mineralization space through the high-temperature steam inside it, ensuring that the mineralization curing is carried out at a certain temperature, thereby promoting the progress of the mineralization reaction.

[0044] As described above, the specific working process of the precast concrete component fixed mold table mineralization curing device according to the embodiment of the present utility model is as follows: (1) Preparation stage: Open the hatch 23 at the top of the mineralization curing cover 2, and place the steel-bar arranged component mold on the fixed mold table 1 through the hoisting equipment for concrete pouring. (2) Sealing stage: After the concrete component is poured, close the hatch 23 at the top of the mineralization curing cover 2 and seal it. (3) Heating stage: Set the target temperature of the mineralization curing, and pass high-temperature steam into the steam pipeline in the mineralization space through the steam boiler 4. The high-temperature steam heats the mineralization space through the steam pipeline. (4) Carbon dioxide mineralization stage: Set the target carbon dioxide concentration of the mineralization curing, and the carbon dioxide gas supply system passes carbon dioxide gas into the mineralization space. (5) Curing completion: After reaching the predetermined curing time and conditions, turn off each system, open the hatch 23 at the top of the mineralization curing cover 2, and then use the hoisting equipment to lift and demold the cured component as a whole and carry out subsequent processing.

[0045] In summary, through the above process, the device can achieve efficient mineralization curing of precast concrete components, improve the early strength of the components, improve the quality of the components, and can effectively utilize carbon dioxide, reduce energy consumption, and improve production efficiency.

[0046] In the related art, the most common curing method for traditional assembled precast components is steam curing. Through this method, the early strength of the components can be quickly improved, enabling them to reach the demolding strength as soon as possible and improving production efficiency. However, there is a thermal damage effect on the components, generating microcracks, causing internal structural damage, and thus having an adverse impact on the mechanical properties and durability. Especially for large-volume, high-height, and special-shaped components, they are not suitable for curing in a flow-line curing kiln and can only be cured using a fixed mold table. The fixed mold table 1 process is the most important and widely used process for the production of PC components in a fixed manner.

[0047] At present, steam curing devices / systems are commonly used for fixed formworks of precast concrete components. There is no relevant device system for mineralization curing yet. When using steam curing for fixed formworks, telescopic covers / simple tarpaulins are often used, with poor sealing performance. There are problems such as a large amount of steam leakage and waste, difficulty in accurately and uniformly controlling temperature and humidity, steam condensate dripping on the surface of components, and long curing time cycles, resulting in unstable quality of precast concrete components, low production efficiency, and inability to be mass-produced and applied.

[0048] Therefore, in order to solve the technical defects existing in the above-mentioned related technologies, the present utility model provides a mineralization curing device for a fixed formwork of precast concrete components. Compared with the traditional steam curing device, on the one hand, this device uses mineralization curing to replace the traditional steam curing. On the other hand, this device uses a steam pipe to pass through the mineralization space to achieve heating, thus avoiding the direct entry of steam into the mineralization space to cause adverse effects.

[0049] It should be emphasized that the advantages of mineralization curing compared with traditional steam curing are as follows: Cement concrete materials can improve early strength by accelerating the carbonation reaction. The calcium carbonate generated by the reaction can stably exist in the paste and further promote the hydration reaction as a nucleating agent to generate more hydration products, making the pore structure of the paste dense. Thus, while rapidly improving early mechanical properties, the late mechanical properties and durability are also enhanced. In addition, carbon dioxide mineralization curing can avoid the problems of high cost, relatively complex process, high energy consumption and large emissions, and adverse effects on the microstructure brought by steam curing. And by mineralization curing precast concrete components, not only can their performance be improved, but also it can play a role in mineral sequestering carbon dioxide and assisting in decarbonization of industrial furnace flue gas, with excellent economic and environmental benefits.

[0050] Furthermore, the mineralization curing device provided by the present utility model has at least the following advantages compared with the traditional steam curing device.

[0051] (1) Improving production efficiency: Through mineralization curing, the early strength of concrete components can be significantly improved, thereby accelerating the turnover of molds and improving production efficiency. Mineralization curing reaches the strength required for demolding faster than traditional steam curing, reducing the curing time.

[0052] (2) Improving component quality: Mineralization curing can avoid common thermal damage effects in steam curing, such as generating microcracks, and thus reduce the adverse effects on the mechanical properties and durability of components. Mineralization curing can make the surface of concrete components smoother, flatter, without peeling, and with good color uniformity, and the appearance quality is significantly improved compared with traditional fixed formwork curing.

[0053] (3) Reduction of steam consumption: The device of the present utility model only utilizes the steam heat exchange tube 7 to provide a certain temperature by exchanging heat with the gas inside the mineralization curing cover 2, without directly introducing steam, which can greatly reduce the consumption and waste of steam. In this way, the problem of condensate water generated by the direct contact of steam with the concrete surface in traditional steam curing is avoided, and the quality of components is further improved.

[0054] (4) Resource utilization of carbon dioxide: Through mineralization curing, a large amount of carbon dioxide gas or carbon-containing flue gas emitted from industrial kilns can be synergistically consumed and utilized, with excellent carbon reduction and carbon sequestration effects. This utilization method helps to reduce greenhouse gas emissions and meets the requirements of sustainable development.

[0055] (5) Simplified operation and reduced energy consumption: The mineralization curing device is easy to operate, does not require frequent manual intervention, and reduces the possibility of operation errors. In addition, due to the reduction of steam usage, the mineralization curing device of the present utility model effectively saves energy resources and reduces production costs.

[0056] Through these advantages, the mineralization curing device for precast concrete component fixed formwork of the utility model not only improves production efficiency and product quality, but also realizes the effective utilization of resources and environmental protection.

[0057] As Figure 1 shown, according to some embodiments of the present utility model, the steam pipeline includes a steam supply pipe 12, a steam heat exchange tube 7 and a return pipe 9. The steam supply pipe 12 is communicated with the steam supply port of the steam boiler 4, the return pipe 9 is communicated with the steam return port of the steam boiler 4, two through holes 22 are provided on the mineralization curing cover 2, the steam supply pipe 12 and the return pipe 9 are respectively connected with the steam heat exchange tube 7 through the two through holes 22, and the steam heat exchange tube 7 is located in the mineralization space and provides heat for it.

[0058] In this embodiment, the steam in the steam boiler 4 is transported to the steam heat exchange tube 7 through the steam supply pipe 12. The steam heat exchange tube 7 is used for heat exchange with the air in the mineralization space to provide heat for the mineralization space. The return pipe 9 is used to return the steam after heat exchange to the steam boiler 4.

[0059] Among them, the steam heat exchange tube 7 is located in the mineralization space inside the mineralization curing cover 2. The steam heat exchange tube 7 provides the required heat for the mineralization space by exchanging heat with the air in the mineralization space. Different from the traditional steam curing method in which steam directly acts on the surface of concrete components, the steam heat exchange tube 7 in the present utility model only exchanges heat with the air in the mineralization space to provide a certain temperature condition in mineralization curing, avoiding the problem of condensate water caused by the direct contact of steam with the concrete surface, and thus protecting the quality of concrete components.

[0060] Specifically, the working principle of the steam circulation loop is as follows: Steam is transported from the steam boiler 4 to the steam supply pipe 12 through the steam heat exchange pipe 7. In the steam heat exchange pipe 7, the steam exchanges heat with the air in the mineralization space, transferring heat to the air. The steam after heat exchange returns to the steam boiler 4 through the return pipe 9. In this way, through such a circulation loop, the steam can be reused, reducing steam consumption and improving energy utilization efficiency.

[0061] Through the above design, the steam pipeline system of the present utility model can effectively provide heat for the mineralization space, while reducing energy consumption and the impact on the quality of concrete components, improving the overall performance and practicability of the precast concrete component fixed mold table mineralization curing device.

[0062] As Figure 1 shown, in some specific embodiments of the present utility model, the two through holes 22 are respectively arranged at both ends of the same side wall of the mineralization curing cover 2. The steam heat exchange pipe 7 starts from one through hole 22 and extends along the circumferential direction of the mineralization curing cover 2 until it reaches the other through hole 22, and the steam heat exchange pipe 7 is fixed on the inner surface of the side wall of the mineralization curing cover 2.

[0063] It can be understood that the steam heat exchange pipe 7 starts from one of the through holes 22 and extends along the circumferential direction of the mineralization curing cover 2 until it reaches the other through hole 22. This means that the steam heat exchange pipe 7 is arranged in a U-shaped or similar shape inside the mineralization curing cover 2, ensuring that the steam heat exchange pipe 7 can cover most of the mineralization space and improving the uniformity of heat distribution.

[0064] In this way, due to the U-shaped or similar shape layout of the steam heat exchange pipe 7, the steam heat exchange pipe 7 can exchange heat along multiple sides of the mineralization space. This layout method can ensure that heat is evenly distributed throughout the mineralization space, thereby ensuring uniform temperature of the concrete components during the curing process and avoiding phenomena of local overheating or overcooling.

[0065] For example Figure 1 shown, both of the two through holes 22 are arranged on the left side wall of the mineralization curing cover 2, which are respectively located at the front and rear ends of the left side wall. The steam heat exchange pipe 7 starts from one through hole 22 and sequentially extends through the rear side wall, the right side wall and the front side wall of the mineralization curing cover 2, and finally extends to the other through hole 22.

[0066] As Figure 1 shown, further, in the height direction of the mineralization curing cover 2, both of the two through holes 22 and the steam heat exchange pipe 7 are located at the middle position of the mineralization curing cover 2.

[0067] In this way, on the one hand, placing the steam heat exchange tube 7 in the middle position of the mineralization curing cover 2 helps to ensure uniform heat distribution throughout the mineralization space, accelerate the mineralization reaction process, and thus improve production efficiency. On the other hand, placing the steam heat exchange tube 7 in the middle position of the mineralization space simplifies the device design, making the installation and maintenance of the steam heat exchange tube 7 more convenient. This layout also helps to reduce the length of the steam heat exchange tube 7, further reducing the manufacturing cost.

[0068] As Figure 1 shown, according to some embodiments of the present invention, the mineralization curing device further includes a temperature control system.

[0069] Among them, the temperature control system includes a first solenoid valve 8, a temperature detector 10, and a temperature controller 11. The temperature detector 10 is arranged inside the door 23 of the mineralization curing cover 2. The first solenoid valve 8 is arranged on the steam supply pipe 12. The temperature controller 11 is used to receive the temperature detection result of the temperature detector 10 and control the opening degree of the first solenoid valve 8 according to the temperature detection result.

[0070] It can be understood that the function of the temperature detector 10 is to monitor the temperature inside the mineralization curing cover 2 in real time and send the temperature data to the temperature controller 11. The function of the first solenoid valve 8 is to control the steam flow according to the instruction of the temperature controller 11, that is, to control the amount of steam entering the mineralization space. The temperature controller 11 receives the temperature detection result from the temperature detector 10. According to the received temperature information, the temperature controller 11 will adjust the opening degree of the first solenoid valve 8 to control the amount of steam entering the mineralization space, so as to achieve the purpose of adjusting the temperature inside the mineralization space.

[0071] The specific working principle of the temperature control system is as follows: The user sets a target temperature, which is the temperature to be maintained during the mineralization curing process. The temperature detector 10 monitors the temperature in the mineralization space in real time and transmits the data to the temperature controller 11. When the actual temperature detected by the temperature detector 10 is lower than the set target temperature, the temperature controller 11 will control the first solenoid valve 8 to open wider, increasing the steam flow, thereby increasing the temperature in the mineralization space. Conversely, when the actual temperature is higher than the set target temperature, the temperature controller 11 will control the first solenoid valve 8 to reduce the opening degree, reducing the steam flow, and lowering the temperature in the mineralization space.

[0072] In this way, on the one hand, through the coordinated use of the temperature detector 10 and the temperature controller 11, the temperature in the mineralization space can be accurately controlled to ensure that the temperature conditions during the mineralization curing process meet the requirements; on the other hand, by adjusting the steam flow, unnecessary steam waste can be avoided, energy can be saved, and the curing efficiency can be improved. In addition, stable temperature conditions help to improve the mineralization effect of concrete components, thereby improving the early strength and durability of the components.

[0073] As Figure 1As shown, according to some embodiments of the present utility model, a carbon dioxide gas supply system includes a carbon dioxide delivery pipe 5 and a carbon dioxide switch valve 18. The carbon dioxide delivery pipe 5 extends into the mineralization space through a carbon dioxide inlet 21 and extends outwards through a carbon dioxide outlet 24. Carbon dioxide nozzles 6 are spacedly arranged on the carbon dioxide delivery pipe 5 extending into the mineralization space for uniformly feeding the gas into the mineralization space.

[0074] The inlet end of the carbon dioxide delivery pipe 5 is connected to the outlet of the liquid carbon dioxide storage tank after pressure reduction or the carbon-containing flue gas pipe discharged from the process industrial furnace.

[0075] In this embodiment, the carbon dioxide gas can be sourced from a liquid carbon dioxide storage tank or carbon-containing flue gas discharged from an industrial furnace. The carbon dioxide switch valve 18 is used to control the on / off of the carbon dioxide delivery pipe 5, that is, to control the supply of carbon dioxide gas. When the carbon dioxide switch valve 18 is opened, the carbon dioxide gas is fed into the carbon dioxide delivery pipe 5. Carbon dioxide nozzles 6 are spacedly arranged on the carbon dioxide delivery pipe 5 extending into the mineralization space, and these carbon dioxide nozzles 6 are used to uniformly feed the carbon dioxide gas into the mineralization space to ensure uniform distribution of the carbon dioxide gas in the mineralization space.

[0076] The specific working principle of the carbon dioxide gas supply system is as follows: When it is necessary to supply carbon dioxide gas into the mineralization space, by opening the carbon dioxide switch valve 18, the carbon dioxide gas is fed into the carbon dioxide delivery pipe 5 after pressure reduction from the liquid carbon dioxide storage tank or the carbon-containing flue gas pipe discharged from the industrial furnace. The carbon dioxide delivery pipe 5 extends into the mineralization space, and the carbon dioxide gas is uniformly fed into the mineralization space through the carbon dioxide nozzles 6 on the pipe. The carbon dioxide gas evenly distributed through the carbon dioxide nozzles 6 can ensure uniform distribution of the carbon dioxide gas concentration in the mineralization space. At the same time, the evenly distributed carbon dioxide gas helps to improve the effect of mineralization curing and ensure the consistency of the mineralization effect of each part of the concrete member.

[0077] In this way, by evenly distributing the carbon dioxide gas, it can be ensured that each part of the concrete member undergoes the same mineralization treatment, improving the consistency of the mineralization effect. Moreover, using the liquid carbon dioxide storage tank or the carbon-containing flue gas discharged from the industrial furnace as the source of carbon dioxide gas can effectively utilize carbon dioxide resources, reduce carbon dioxide emissions, and contribute to environmental protection.

[0078] The evenly distributed carbon dioxide gas helps to accelerate the mineralization reaction, improve the early strength of the concrete member, and thus improve production efficiency.

[0079] Such as Figure 1As shown, in some specific embodiments of the present utility model, the carbon dioxide inlet 21 and the carbon dioxide outlet 24 are respectively arranged at both ends of the same side wall of the mineralization curing cover 2. The carbon dioxide delivery pipe 5 starts from the carbon dioxide inlet 21 and extends along the circumferential direction of the mineralization curing cover 2 until it reaches the carbon dioxide outlet 24, and the carbon dioxide delivery pipe 5 is fixed on the inner surface of the side wall of the mineralization curing cover 2.

[0080] In this embodiment, the layout of the carbon dioxide inlet 21 and the carbon dioxide outlet 24 ensures that the carbon dioxide delivery pipe 5 can enter the mineralization space from one side and leave from the other side, thereby covering most of the mineralization space. At the same time, due to the above layout of the carbon dioxide inlet 21 and the carbon dioxide outlet 24, the structure of the carbon dioxide delivery pipe 5 can form a path similar to a U shape, so that the carbon dioxide delivery pipe 5 can cover most of the mineralization space, thereby improving the uniformity of carbon dioxide gas distribution.

[0081] It can be understood that due to the U-shaped or similar-shaped layout of the carbon dioxide delivery pipe 5, the carbon dioxide delivery pipe 5 can distribute gas along multiple sides of the mineralization space. This layout can ensure that carbon dioxide gas can be evenly distributed throughout the mineralization space, thereby ensuring uniform carbon dioxide concentration during the curing process of concrete components and avoiding the phenomenon of insufficient or excessive local carbon dioxide concentration.

[0082] Through this design, the carbon dioxide delivery pipe 5 can evenly distribute carbon dioxide gas inside the mineralization curing cover 2, ensuring uniform carbon dioxide concentration throughout the mineralization space, thereby improving the curing quality and efficiency of precast concrete components. This layout and connection method simplify the structure of the device and improve the reliability and practicality of the device.

[0083] For example Figure 1 As shown, both the carbon dioxide inlet 21 and the carbon dioxide outlet 24 are arranged on the left side wall of the mineralization curing cover 2, and they are respectively located at the front and rear ends of the left side wall. The carbon dioxide delivery pipe 5 starts from the carbon dioxide inlet 21, extends successively through the rear side wall, the right side wall and the front side wall of the mineralization curing cover 2, and finally extends to the carbon dioxide outlet 24.

[0084] Such as Figure 1 As shown, further, in the height direction of the mineralization curing cover 2, the carbon dioxide inlet 21, the carbon dioxide outlet 24 and the carbon dioxide delivery pipe 5 are all located at the bottom position of the mineralization curing cover 2.

[0085] It can be understood that since the density of carbon dioxide is greater than that of air, after being ejected from the bottom, it will deposit in the mineralization space and gradually cover the entire space. As time goes by, the carbon dioxide will fill the entire mineralization space, ensuring a uniform distribution of the carbon dioxide concentration in the mineralization space and avoiding dead corners that cannot be covered.

[0086] In this way, since the carbon dioxide gas is ejected from the bottom and deposits in the mineralization space, it helps to reduce the dead corners in the mineralization space and ensure that each corner can come into contact with sufficient carbon dioxide gas. This design can avoid affecting the mineralization effect of concrete components due to insufficient local carbon dioxide concentration.

[0087] At the same time, the uniformly distributed carbon dioxide gas helps to improve the effect of mineralization curing and ensure the consistency of the mineralization effect of each part of the concrete component. This consistency is crucial for improving the overall performance and quality of the concrete component. In addition, by ensuring a uniform distribution of the carbon dioxide concentration in the mineralization space, the speed and efficiency of the mineralization reaction can be increased. This helps to shorten the curing time and improve production efficiency.

[0088] As Figure 1 shown, according to some embodiments of the present utility model, the mineralization curing device further includes a carbon dioxide concentration control system.

[0089] Among them, the carbon dioxide concentration control system includes a carbon dioxide concentration detector 13, a carbon dioxide concentration controller 20, and a second solenoid valve 19. The carbon dioxide concentration detector 13 is arranged inside the door 23 of the mineralization curing cover 2, the second solenoid valve 19 is arranged on the carbon dioxide supply pipe 5, and the carbon dioxide concentration controller 20 is used to receive the carbon dioxide concentration detection result of the carbon dioxide concentration detector 13 and control the opening degree of the second solenoid valve 19 according to the carbon dioxide concentration detection result.

[0090] In this embodiment, the function of the carbon dioxide concentration detector 13 is to monitor the carbon dioxide concentration inside the mineralization curing cover 2 in real time and send the carbon dioxide concentration data to the carbon dioxide concentration controller 20. The function of the second solenoid valve 19 is to control the flow rate of the carbon dioxide gas according to the instruction of the carbon dioxide concentration controller 20, that is, to control the amount of carbon dioxide gas entering the mineralization space.

[0091] The carbon dioxide concentration controller 20 receives the carbon dioxide concentration detection result from the carbon dioxide concentration detector 13. According to the received carbon dioxide concentration information, the carbon dioxide concentration controller 20 will adjust the opening degree of the second solenoid valve 19 to control the amount of carbon dioxide gas entering the mineralization space, so as to achieve the purpose of adjusting the carbon dioxide concentration inside the mineralization space.

[0092] The specific working principle of the carbon dioxide concentration control system is as follows: The user sets a target carbon dioxide concentration, which is the carbon dioxide concentration to be maintained during the mineralization curing process. The carbon dioxide concentration detector 13 monitors the carbon dioxide concentration in the mineralization space in real time and transmits the data to the carbon dioxide concentration controller 20. When the actual carbon dioxide concentration detected by the carbon dioxide concentration detector 13 is lower than the set target carbon dioxide concentration, the carbon dioxide concentration controller 20 will control the second solenoid valve 19 to open wider, increasing the carbon dioxide gas flow rate, thereby increasing the carbon dioxide concentration in the mineralization space. Conversely, when the actual carbon dioxide concentration is higher than the set target carbon dioxide concentration, the carbon dioxide concentration controller 20 will control the second solenoid valve 19 to reduce the opening degree, reducing the carbon dioxide gas flow rate and lowering the carbon dioxide concentration in the mineralization space.

[0093] In this way, by the combined use of the carbon dioxide concentration detector 13 and the carbon dioxide concentration controller 20, the carbon dioxide concentration in the mineralization space can be accurately controlled to ensure that the carbon dioxide concentration conditions during the mineralization curing process meet the requirements. At the same time, the stable carbon dioxide concentration conditions help to improve the mineralization effect of concrete components, thereby enhancing the early strength and durability of the components.

[0094] Through the above design, the carbon dioxide concentration control system of the present utility model can ensure that the carbon dioxide concentration during the mineralization curing process is stable within an ideal range, improving the curing efficiency and component quality. At the same time, the present utility model realizes a mineralization curing control system for a fixed mold table 1 with the functions of automatically adjusting the carbon dioxide concentration and temperature by setting the carbon dioxide concentration and temperature conditions, enabling the rapid increase of the early strength of precast concrete components, ensuring the demolding quality, accelerating the mold turnover, and enhancing the production efficiency.

[0095] As Figure 1 shown, according to some embodiments of the present utility model, the mineralization curing device further includes a chamber pressure detector 14, which is arranged inside the door 23 of the mineralization curing cover 2. An exhaust port 16 is provided at the top of the side wall of the mineralization curing cover 2, and an exhaust control valve 17 is installed on the exhaust port 16.

[0096] In this embodiment, the chamber pressure detector 14 monitors the pressure change in the mineralization space in real time and transmits the data to the control system. If the pressure in the mineralization space exceeds the safe range, the control system will take corresponding measures, such as opening the exhaust control valve 17 and releasing the pressure through the exhaust port 16, to ensure the safety of the mineralization curing process.

[0097] In this way, by monitoring the pressure in the mineralization space with the chamber pressure detector 14 and adjusting the pressure in the mineralization space with the exhaust control valve 17, potential safety problems can be detected and solved in a timely manner to ensure the safety of the mineralization curing process.

[0098] As Figure 1 shown, according to some embodiments of the present utility model, the mineralization curing device further includes a circulation fan 15, which is installed on the inner side wall of the mineralization curing cover 2 and above the steam pipeline.

[0099] In this embodiment, the circulation fan 15 promotes the gas to circulate in the mineralization space, ensuring uniform distribution of carbon dioxide gas and heat in the mineralization space. Through the gas circulation, the situation of insufficient or excessive local carbon dioxide concentration can be avoided, and at the same time, the temperature in the mineralization space can be evenly distributed, improving the mineralization effect.

[0100] In this way, the circulation fan 15 promotes the gas to circulate, ensuring uniform distribution of carbon dioxide gas and heat in the mineralization space, which helps to improve the mineralization effect and ensure the consistency of the mineralization effect of each part of the concrete member.

[0101] For example Figure 1 shown, the circulation fan 15 is installed above the steam heat exchange tube 7 on the inner side wall of the mineralization curing cover 2. Since the carbon dioxide gas has a large density and is easy to deposit at the bottom and then gradually rise, resulting in large differences in the mineralization effect and mechanical strength of the concrete member samples at different positions in the vertical height direction. After setting the circulation fan 15, the carbon dioxide gas inside the mineralization curing cover 2 can be evenly distributed in the internal space, reducing the concentration difference at different heights, which is beneficial to the uniform diffusion, penetration and transmission of carbon dioxide inside the member, improving the mineralization effect, and making the mechanical strength of the mineralized concrete members at different heights more uniform and stable.

[0102] As Figure 1 shown, according to some embodiments of the present utility model, the mineralization curing cover 2 is a rectangular curing cover made of hard steel or acrylic material. The four side walls and the top of the mineralization curing cover 2 are all covered and adhered with a heat preservation film 3, and the bottom of the mineralization curing cover 2 is fixedly and hermetically connected to the fixed mold table 1.

[0103] In this embodiment, the mineralization curing cover 2 is made of hard steel or acrylic material to ensure the firmness and transparency of the structure (such as acrylic material).

[0104] The mineralization curing cover 2 is a rectangular curing cover, which is suitable for accommodating precast concrete members of various sizes and shapes. The four side walls and the top of the mineralization curing cover 2 are all covered and adhered with a heat preservation film 3, and this design helps to reduce heat loss and keep the temperature in the mineralization space stable.

[0105] The bottom of the mineralization curing cover 2 is fixedly and hermetically connected to the fixed mold table 1, ensuring the tightness of the mineralization space and preventing heat and gas leakage.

[0106] Through the above design, the mineralization curing cover 2 of the utility model can provide a stable curing environment to ensure the quality and efficiency of precast concrete components during the mineralization curing process.

[0107] The following gives a specific embodiment of the mineralization curing device of the utility model.

[0108] As Figure 1 shown, when the mineralization curing is carried out on the component, first open the hatch 23 at the top of the mineralization curing cover 2, transfer and place the steel mold of the reinforced component on the steel fixed formwork 1 through a hoisting device, and then carry out concrete pouring. After the concrete component is poured, cover the hatch 23 and seal it with a seal.

[0109] Set the target temperature for mineralization curing, pass steam into the steam heat exchange pipe 7, and heat the concrete component inside the mineralization curing cover 2 through convective heat transfer. A temperature detector 10 is arranged on the lower surface of the hatch 23 of the mineralization curing cover 2 to test the real-time temperature inside the mineralization curing cover 2, and it is transmitted to the temperature controller 11 for processing. The temperature controller 11 controls the switch of the first solenoid valve 8, and controls the internal temperature of the mineralization curing cover 2 by controlling the switch of the steam inlet.

[0110] While controlling the temperature, set the target carbon dioxide concentration value for mineralization curing, pass carbon dioxide gas or carbon-containing flue gas from an industrial kiln into the carbon dioxide supply pipe 5, and the carbon dioxide gas is ejected into the internal space of the mineralization curing cover 2 through the carbon dioxide spray holes 6 to carry out carbon dioxide mineralization curing on the concrete component. A carbon dioxide concentration detector 13 is arranged on the lower surface of the hatch 23 of the mineralization curing cover 2 to test the real-time carbon dioxide concentration inside the mineralization curing cover 2, and it is transmitted to the carbon dioxide concentration controller 20 for processing. The carbon dioxide concentration controller 20 controls the switch of the second solenoid valve 19, and controls the internal carbon dioxide concentration of the mineralization curing cover 2 by controlling the switch of the carbon dioxide gas inlet.

[0111] While controlling the temperature and carbon dioxide concentration, the circulation fan 15 inside the mineralization curing cover 2 is turned on, which can make the carbon dioxide gas evenly distributed and circulated in the internal space of the mineralization curing cover 2, so that the carbon dioxide gas concentration levels at different heights in the space are consistent, which is more conducive to the uniform diffusion, penetration and transmission of carbon dioxide inside the concrete component, improves the overall mineralization effect of the concrete component, and makes its mechanical strength more uniform and stable.

[0112] While controlling the temperature and carbon dioxide concentration for mineralization curing, a chamber pressure detector 14 is provided on the lower surface of the door 23 of the mineralization curing hood 2. This chamber pressure detector 14 can provide real-time pressure monitoring of the overall interior of the mineralization curing hood 2, facilitating technicians to monitor the internal pressure of the mineralization curing hood 2 and preventing excessive pressure. If the pressure is too high, the exhaust control valve 17 can be operated in a timely manner to relieve the pressure, providing timely and effective pressure safety warnings and prevention measures to ensure the normal operation of the mineralization curing device.

[0113] Finally, mineralization curing is carried out by controlling within the temperature and carbon dioxide concentration control range and combining with real-time pressure monitoring, precisely regulating the setting speed and strength development of precast concrete components to ensure the quality of the components. After the mineralization curing is completed, first, the carbon dioxide gas control system and the temperature control system are shut down, the pressure monitoring and the circulation fan 15 are turned off, the top door 23 of the mineralization curing hood 2 is opened, and the formwork-bearing components are lifted as a whole, demolded, and shipped out.

[0114] In summary, the beneficial effects of the present utility model are as follows.

[0115] 1) The mineralization curing device for the fixed formwork of precast concrete components provided by the present utility model can effectively improve the mineralization reaction speed of concrete components, improve the production efficiency of precast concrete components, and enhance the stability and uniformity of the quality performance of each part of the precast components. The device system is simple, easy to clean, and has a wide range of applicability, providing a new idea for its large-scale industrial application.

[0116] 2) The mineralization curing device for the fixed formwork of precast concrete components provided by the present utility model completely replaces the manual adjustment of the steam valve mode in the usual steam curing method. Only the heat exchange of the steam heat exchange tube 7 is used to provide the internal temperature, and the steam does not directly contact the concrete components, avoiding the adverse effects of the condensate water in the traditional steam curing on the quality of the concrete components and reducing the consumption and waste of steam. The components produced by the device of the present utility model have a smooth, flat surface, do not peel off, have good color uniformity, and the appearance quality is significantly improved compared with the traditional fixed formwork 1 curing, and the mechanical strength and durability are better.

[0117] 3) The mineralization curing device system provided by the present utility model can accurately and stably control the temperature and carbon dioxide concentration, has high processing efficiency, is easy to operate, accelerates the turnover of the molds, and improves the production efficiency of the precast production on the fixed formwork 1. It can also synergistically consume and utilize a large amount of carbon dioxide gas or carbon-containing flue gas from industrial kilns, and has excellent carbon reduction and carbon sequestration effects, with remarkable social and environmental benefits.

[0118] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A mineralized curing device for a fixed formwork of precast concrete components, characterized in that, Comprising: A fixed mold table for producing precast concrete components; A mineralized curing cover which is disposed over the fixed mold table and together with the fixed mold table defines a mineralized space; a hatch door capable of opening or closing the mineralized space is provided at the top end of the mineralized curing cover; A carbon dioxide gas supply system for introducing carbon dioxide into the mineralized space to achieve mineralization; A steam heat exchange system, including a steam boiler and steam pipes, both ends of the steam pipes are connected to the steam boiler and together form a steam circulation loop, and part of the steam pipes extend into the mineralized space to supply heat thereto.

2. The mineralization curing device for the precast concrete component fixing die table according to claim 1, wherein, The steam pipes include a steam supply pipe, steam heat exchange pipes and a return pipe. The steam supply pipe is communicated with the steam supply port of the steam boiler, the return pipe is communicated with the steam return port of the steam boiler. Two through holes are provided on the mineralized curing cover. The steam supply pipe and the return pipe are respectively connected to the steam heat exchange pipes through the two through holes. The steam heat exchange pipes are located in the mineralized space to supply heat thereto.

3. The mineralization curing device for the precast concrete member fixing die table according to claim 2, characterized in that, The two through holes are respectively provided at two ends of the same side wall of the mineralized curing cover. The steam heat exchange pipes start from one of the through holes and extend along the circumferential direction of the mineralized curing cover to the other through hole, and the steam heat exchange pipes are fixed on the inner surface of the side wall of the mineralized curing cover.

4. The mineralization curing device for the precast concrete member fixing die table according to claim 3, characterized in that, In the height direction of the mineralized curing cover, the two through holes and the steam heat exchange pipes are all located at the middle position of the mineralized curing cover.

5. The mineralization curing device for the precast concrete member fixing die table according to claim 2, wherein, Further comprising: A temperature control system, including a first solenoid valve, a temperature detector and a temperature controller. The temperature detector is disposed inside the hatch door of the mineralized curing cover. The first solenoid valve is disposed on the steam supply pipe. The temperature controller is used for receiving the temperature detection result of the temperature detector and controlling the opening degree of the first solenoid valve according to the temperature detection result.

6. The mineralization curing device for precast concrete component fixing die tables according to any one of claims 1 to 5, characterized in that, The carbon dioxide gas supply system includes a carbon dioxide supply pipe and a carbon dioxide switch valve. The carbon dioxide supply pipe extends into the mineralized space through a carbon dioxide inlet and extends outwards through a carbon dioxide outlet; carbon dioxide spray holes are arranged at intervals on the carbon dioxide supply pipe extending into the mineralized space for uniformly sending the gas into the mineralized space; The inlet end of the carbon dioxide supply pipe is connected to the outlet of the liquid carbon dioxide storage tank after decompression or the carbon-containing flue gas pipe discharged from the process industrial kiln.

7. The mineralization curing device for the precast concrete component fixing die table according to claim 6, characterized in that, The carbon dioxide inlet and the carbon dioxide outlet are respectively provided at two ends of the same side wall of the mineralized curing cover. The carbon dioxide supply pipe starts from the carbon dioxide inlet and extends along the circumferential direction of the mineralized curing cover to the carbon dioxide outlet, and the carbon dioxide supply pipe is fixed on the inner surface of the side wall of the mineralized curing cover; In the height direction of the mineralized curing cover, the carbon dioxide inlet, the carbon dioxide outlet and the carbon dioxide supply pipe are all located at the bottom position of the mineralized curing cover.

8. The mineralization curing device for the precast concrete component fixing die table according to claim 7, characterized in that, Further comprising: The carbon dioxide concentration control system includes a carbon dioxide concentration detector, a carbon dioxide concentration controller, and a second solenoid valve. The carbon dioxide concentration detector is arranged inside the door of the mineralization curing cover. The second solenoid valve is arranged on the carbon dioxide supply pipe. The carbon dioxide concentration controller is used to receive the carbon dioxide concentration detection result of the carbon dioxide concentration detector and control the opening degree of the second solenoid valve according to the carbon dioxide concentration detection result.

9. The mineralization curing device for the precast concrete member fixing die table according to any one of claims 1 to 5, characterized in that It further includes a chamber pressure detector arranged inside the door of the mineralization curing cover. An exhaust port is provided at the top of the side wall of the mineralization curing cover, and an exhaust control valve is installed on the exhaust port. And / or, it further includes a circulation fan installed on the inner side wall of the mineralization curing cover and above the steam pipe.

10. The mineralization curing device for the precast concrete member fixing die table according to any one of claims 1 to 5, characterized in that, The mineralization curing cover is a rectangular curing cover made of hard steel or acrylic material. Heat insulation films are covered and adhered to the four side walls and the top end of the mineralization curing cover. The bottom of the mineralization curing cover is fixedly and sealedly connected to the fixed mold table.

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