Still kettle with CO2 auxiliary gas supply device and mineralization system

Abstract

The utility model provides a still kettle with a CO2 auxiliary gas supply device and a mineralization system. The still kettle with the CO2 auxiliary gas supply device comprises the CO2 auxiliary gas supply device, the CO2 auxiliary gas supply device comprises a CO2 conveying pipe located in an inner cavity, the CO2 conveying pipe comprises at least two holes which are formed in the CO2 conveying pipe and are different in position, the CO2 auxiliary gas supply device further comprises a gas inlet located outside a kettle body, the gas inlet is communicated with the CO2 conveying pipe, and the CO2 conveying pipe is communicated with the gas inlet. And the gas inlet can be connected with a CO2 supply device positioned outside the kettle body. The at least two open pores with different positions can synchronously convey CO2 at different positions of the inner cavity, so that the CO2 in the inner cavity is uniformly distributed, the mineralization curing time of the concrete blocks of the existing still kettle is shortened, the efficiency of curing the concrete blocks by using the CO2 in the existing still kettle is improved, and in addition, the uniformity of the quality of the concrete blocks cured in the same batch can also be improved. Furthermore, the CO2 holes disperse CO2 and centrally discharge air, so that sudden drop of the temperature near the holes is avoided, and the problem that the concrete block is easy to crack is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of CO2 emission reduction, and in particular to a CO2 mineralization device. Background Art

[0002] In the traditional technical solution for CO2 mineralization curing of concrete blocks, there are few carbon dioxide inlet holes and the CO2 gas is unevenly distributed in the kettle, resulting in long mineralization curing time for concrete blocks, low concrete mineralization efficiency, and inconsistent quality of concrete blocks cured in the same batch. At the same time, the localized concentrated entry of CO2 causes a sudden drop in temperature near the air inlet, making the concrete blocks extremely prone to cracking due to large temperature stress. Utility Model Content

[0003] The embodiments of the present application provide an autoclave and a mineralization system with a CO2 auxiliary gas supply device to at least solve the technical problems of the existing autoclave mineralization curing of concrete blocks taking a long time and the inconsistent quality of concrete blocks cured in the same batch.

[0004] The first embodiment of the present application provides an autoclave with a CO2 auxiliary gas supply device, comprising:

[0005] The kettle body includes an opening for allowing the concrete blocks to enter and exit, and the kettle wall of the kettle body forms an inner cavity;

[0006] a kettle cover, disposed on the opening to close the inner cavity;

[0007] A CO2 auxiliary gas supply device, the CO2 auxiliary gas supply device includes a CO2 delivery pipe located in the inner cavity, the CO2 delivery pipe includes at least two openings at different positions arranged on the CO2 delivery pipe, the CO2 auxiliary gas supply device also includes an air inlet located outside the kettle body, the air inlet is connected to the CO2 delivery pipe, and the air inlet can be connected to the CO2 supply device located outside the kettle body.

[0008] The autoclave according to the embodiment of the present application has at least the following beneficial effects:

[0009] The CO2 auxiliary gas supply device of this embodiment supplies CO2 provided by an external CO2 supply device to the inner cavity of the autoclave. The CO2 delivery pipe of the CO2 auxiliary gas supply device located in the inner cavity of the autoclave is provided with at least two openings at different positions, thereby achieving the simultaneous supply of CO2 at different positions in the autoclave. This allows the CO2 to be distributed more evenly within the inner cavity, allowing concrete blocks located at different positions in the inner cavity to maintain similar reaction effects and produce consistent products. This also avoids the problem of concrete blocks at locations with low CO2 concentrations or pressures failing to achieve the predetermined mineralization effect. At the same time, the uneven distribution of CO2 will cause concrete blocks at locations with low CO2 concentrations or pressures to require more time to achieve the same mineralization effect. This embodiment also reduces the curing time of concrete blocks and improves the operating efficiency of concrete blocks. Furthermore, multiple CO2 openings disperse the concentrated CO2 outflow, avoid sudden temperature drops near the openings, and reduce the problem of concrete blocks being prone to cracking due to high temperature stress.

[0010] In one possible embodiment, at least one of the at least two openings is located in the upper portion of the inner cavity, and at least one of the at least two openings is located in the lower portion of the inner cavity. The space above the vertical center of the inner cavity is defined as the upper portion of the inner cavity, and the space below the vertical center of the inner cavity is defined as the lower portion of the inner cavity. Placing the openings in the upper and lower portions of the inner cavity helps to quickly and evenly distribute the CO2 within the upper and lower portions of the inner cavity.

[0011] In one possible embodiment, the inner cavity extends horizontally to the opening, the autoclave has a circular cross-section along the axial direction of the autoclave, and the CO2 delivery pipe includes a first tube portion extending circumferentially along the autoclave, with the at least two openings provided in the first tube portion. Designing the first tube portion to extend circumferentially along the autoclave avoids vertically extending deep into the center of the inner cavity, which would hinder the insertion of large concrete blocks into the inner cavity because the first tube portion would block the concrete blocks. Therefore, designing the first tube portion to extend circumferentially along the autoclave helps increase the available space within the autoclave, allowing for the curing of more concrete blocks in a single batch.

[0012] In one possible embodiment, the autoclave further includes a transport device disposed at the bottom of the inner cavity and configured to transport concrete blocks along the axial direction of the autoclave body, with the projection of the first pipe portion along the axial direction of the autoclave located outside the projection of the transport device along the axial direction of the autoclave. Designing the dimensions of the transport device in a manner correlated with the dimensions of the first pipe portion allows the first pipe portion to occupy more space within the inner cavity while improving space utilization within the inner cavity, resulting in a more uniform distribution within the inner cavity. Furthermore, the transport device facilitates the movement of concrete blocks into and out of the inner cavity, facilitating easier loading and unloading of concrete blocks by workers.

[0013] In one possible embodiment, the first tube portion is annular in shape. Since the cross-section of the kettle body along the circumferential direction of the kettle body is circular, designing the first tube portion to be circular can allow the first tube portion to be distributed in more space in the inner cavity, thereby making the CO2 in the inner cavity more evenly distributed.

[0014] In one possible embodiment, the at least two openings form a non-zero angle α with a line connecting the centerline of the first tube portion, and the at least two openings are both oriented toward the inner cavity. By defining the opening directions, CO2 delivered by the CO2 delivery tube into the inner cavity moves directly to the center of the inner cavity, optimizing the CO2 movement path and reducing CO2 delivery time.

[0015] In one possible embodiment, the CO2 delivery pipe further includes a second pipe portion extending axially along the autoclave and a plurality of first pipe portions. The plurality of first pipe portions are all connected to the second pipe portion, and the second pipe portion is connected to the exterior of the inner cavity. The plurality of first pipe portions are spaced apart axially along the autoclave. Spaced apart axially along the autoclave, the first pipe portions are distributed across a larger area within the inner cavity, resulting in more uniform CO2 distribution within the inner cavity along the axial direction of the autoclave.

[0016] In one possible embodiment, the CO2 delivery pipe includes a second pipe portion extending in the axial direction of the autoclave, and the at least two openings are spaced apart on the second pipe portion along the extension direction of the second pipe portion. The at least two openings are spaced apart along the axial direction of the autoclave 1, facilitating the simultaneous delivery of carbon dioxide at multiple locations, thereby achieving more uniform distribution of carbon dioxide within the inner cavity.

[0017] In one possible embodiment, the CO2 delivery tube includes a second tube portion extending axially along the autoclave. The at least two openings are disposed on the second tube portion, and a line connecting the at least two openings and the centerline of the second tube portion forms a non-zero angle β. By defining the opening orientation, the CO2 delivery tube can be transported directly into the inner cavity to the center of the inner cavity, optimizing the CO2 movement path and reducing CO2 delivery time.

[0018] The second aspect of the present application provides a mineralization system, which includes the autoclave of the first aspect, a CO2 supply device and a temperature and pressure regulating device, wherein the CO2 supply device is connected to the CO2 auxiliary gas supply device, and the temperature and pressure regulating device is used to regulate the temperature of the CO2 delivered to the CO2 auxiliary gas supply device.

[0019] The mineralization system according to the embodiment of the present application has at least the following beneficial effects:

[0020] The mineralization system of the present application reduces the mineralization curing time of concrete blocks in existing autoclaves, improves the efficiency of existing autoclaves in curing concrete blocks using CO2, and furthermore, improves the uniformity of the quality of concrete blocks cured in the same batch. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 It is a structural schematic diagram of an autoclave with a CO2 auxiliary gas supply device;

[0023] Figure 2 It is a schematic cross-sectional view of the autoclave body;

[0024] Figure 3 It is a schematic cross-sectional view of another first tube portion in the autoclave body;

[0025] Figure 4 is a schematic cross-sectional view of the first pipe portion;

[0026] Figure 5 It is a structural schematic diagram of an autoclave provided with a second pipe portion;

[0027] Figure 6 is a schematic cross-sectional view of the second tube portion;

[0028] Figure 7 is a schematic diagram of the mineralization system.

[0029] Reference numerals:

[0030] 1-Autoclave with CO2 auxiliary gas supply device, 11-autoclave body, 111-opening, 112-inner cavity, 1121 lower part of the inner cavity, 1122-upper part of the inner cavity, 1123-center of the inner cavity in the vertical direction, 113-mounting hole, 12-autoclave cover, 13-CO2 auxiliary gas supply device, 131-CO2 delivery pipe, 1311-opening, 1312-first pipe part, 1313 second pipe part, 132-air inlet, 14-transport device, 15-water inlet, 16-sewage outlet, 17-temperature sensor, 18-first pressure sensor, 2-CO2 supply device, 3-temperature and pressure regulating device, 4-second pressure sensor, 5-control device. DETAILED DESCRIPTION

[0031] Examples of the present embodiment are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present embodiment and are not to be construed as limiting the present embodiment.

[0032] The following combination Figures 1 to 6 The autoclave 1 with a CO2 auxiliary gas supply device according to an embodiment of the present application is described in detail.

[0033] like Figure 1As shown, the autoclave 1 includes a body 11, a lid 12, and a CO2 auxiliary gas supply device 13. The CO2 auxiliary gas supply device 13 includes a CO2 delivery pipe 131 located within an inner cavity 112. The CO2 delivery pipe 131 includes at least two openings 1311 disposed at different positions on the CO2 delivery pipe 131. The CO2 auxiliary gas supply device 13 also includes an air inlet 132 located outside the body 11. The air inlet 132 is connected to the CO2 delivery pipe 131 and can be connected to a CO2 supply device located outside the body 11. Existing CO2 curing autoclaves 1 take a long time to cure concrete, affecting the efficiency of the curing operation. Existing CO2-cured concrete utilizes CO2 to enter the cracks of the concrete blocks to be cured, reacting with alkaline magnesium, calcium, and other salts to form a mineralization reaction, thereby fixing the CO2 within the concrete blocks. This solidification of CO2 serves as a CO2 disposal method, reducing CO2 emissions into the atmosphere and achieving the environmentally friendly effect of reducing the greenhouse effect. Furthermore, solidifying CO2 into the concrete blocks improves their strength. Furthermore, industrial CO2 curing requires a relatively short curing time for economical feasibility, so the mineralization reaction typically occurs under relatively high pressures. To influence the mineralization rate, it is crucial to ensure that all concrete blocks to be cured are exposed to a uniform, high-pressure environment to ensure rapid mineralization across the entire block. Existing CO2 mineralization autoclaves use a single CO2 input pipe to introduce CO2 into the autoclave. This results in uneven CO2 distribution throughout the autoclave, hindering the simultaneous reaction of the mineralized concrete blocks, extending the curing time and reducing the curing efficiency of the concrete blocks. The CO2 auxiliary gas supply device 13 of this embodiment supplies CO2 provided by the external CO2 supply device to the inner cavity 112 of the autoclave 1, wherein the CO2 delivery pipe 131 of the CO2 auxiliary gas supply device 13 located in the inner cavity 112 of the autoclave body 11 is provided with at least two openings 1311 at different positions, thereby achieving the simultaneous supply of CO2 at different positions in the inner cavity 112 of the autoclave 1. In this way, the CO2 distribution in the inner cavity 112 is relatively uniform, so that the concrete blocks located at different positions in the inner cavity 112 maintain similar reaction effects and consistent products, and can also avoid the problem that the concrete blocks at low CO2 concentrations or low pressure positions cannot achieve the predetermined mineralization effect. At the same time, the uneven distribution of CO2 will cause the concrete blocks at low CO2 concentrations or low pressure positions to require more time to achieve the same mineralization effect. This embodiment also reduces the curing time of the concrete blocks and improves the operation efficiency of the concrete blocks. Furthermore, multiple CO2 openings disperse the concentrated CO2 outgassing, avoiding a sudden drop in temperature near the openings and reducing the problem of concrete blocks being prone to cracking due to high temperature stress.

[0034] In some embodiments, the kettle body 11 includes an opening 111, which is used for concrete blocks to enter and exit. The kettle wall of the kettle body 11 forms an inner cavity 112, which is connected to the aforementioned opening 111. The concrete blocks enter the aforementioned inner cavity 112 through the opening 111 and complete CO2 mineralization curing in the inner cavity 112.

[0035] In some embodiments, the lid 12 is disposed at the opening 111 to seal the inner cavity 112. The lid 12 can be hinged to the opening 111 of the autoclave 11. A sealing ring can be provided at the portion where the lid 12 and the opening 111 meet, thereby maintaining a stable pressure within the autoclave 1 even under high pressure. In some embodiments, the lid 12 is electrically driven, i.e., the lid 12 is driven by a motor to open and close the autoclave 11.

[0036] In some embodiments, a mounting hole 113 is provided through the wall of the kettle body 11, and the CO2 auxiliary gas supply device 13 is installed through the mounting hole 113. In some embodiments, the number of mounting holes 113 is 1, 2, 3, etc., and is not specifically limited. Among them, 2 or more mounting holes 113 help prevent the CO2 delivery pipe 131 from rotating and twisting, and improve the installation stability of the CO2 auxiliary gas supply device 13. In some embodiments, 2 or more mounting holes 113 are provided along the length direction of the kettle body 11. It is understood that 2 or more mounting holes 113 can also be provided along the circumferential direction of the kettle body 11.

[0037] In some embodiments, please refer to Figure 2 At least one of the at least two openings 1311 is located in the upper portion 1122 of the inner cavity, and at least one of the at least two openings 1311 is located in the lower portion 1121 of the inner cavity. The space above the vertical center 1123 of the inner cavity 112 is the upper portion 1122 of the inner cavity, and the space below the vertical center 1123 of the inner cavity 112 is the lower portion 1121 of the inner cavity. Disposing openings 1311 in the upper and lower portions of the inner cavity 112 helps to quickly and evenly distribute CO2 within the upper and lower portions of the inner cavity 112.

[0038] In some embodiments, the line connecting at least two openings 1311 may be parallel to the vertical direction, may form a certain angle with the vertical direction, or may be parallel to the horizontal direction, which is not limited here.

[0039] In some embodiments, the kettle body 11 is generally cylindrical, with the axial direction of the kettle body 11 parallel to the horizontal direction. That is, when in use, the circumferential curved surface of the cylindrical kettle body 11 contacts the ground. The inner cavity 112 extends horizontally to the opening 111, and the cross-section of the kettle body 11 along the axial direction of the kettle body 11 is circular. The CO2 delivery pipe 131 includes a first pipe portion 1312 extending along the circumference of the kettle body 11, with at least two openings 1311 provided in the first pipe portion 1312. The shape of the first pipe portion 1312 is designed to extend along the circumference of the kettle body 11 to avoid extending vertically deep into the center of the inner cavity 112, which would hinder the installation of large-sized concrete blocks into the inner cavity 112 because the first pipe portion 1312 would block the concrete blocks. Therefore, designing the first pipe portion 1312 to extend along the circumference of the kettle body 11 helps increase the available space inside the kettle body 11, allowing more concrete blocks to be cured in a single batch. In some embodiments, the first pipe portion 1312 is as close to the inner wall of the kettle body 11 as possible, which can provide a larger curing space for the concrete blocks and improve the space utilization of the kettle body 11.

[0040] In some embodiments, the autoclave 1 further includes a transport device 14 disposed at the bottom of the inner cavity 112. The transport device 14 is used to transport concrete blocks along the axial direction of the autoclave 1. The projection of the first tube portion 1312 in the axial direction of the autoclave 1 is located outside the projection of the transport device 14 in the axial direction of the autoclave 1. Correlating the dimensions of the transport device 14 with the dimensions of the first tube portion 1312 allows the first tube portion 1312 to occupy more space in the inner cavity 112 while improving space utilization of the inner cavity 112, resulting in a more uniform distribution of CO2 in the inner cavity 112. Furthermore, the transport device 14 facilitates the movement of concrete blocks into and out of the inner cavity 112, making it easier for workers to load and unload concrete blocks.

[0041] In some embodiments, the first tube portion 1312 is horseshoe-shaped, that is, the first tube portion 1312 includes a gap for the transport device 14 to enter and exit the inner cavity 112 .

[0042] In some embodiments, please refer to Figure 3 Another embodiment of the first tube portion 1312 is in the shape of a ring. Since the cross-section of the kettle body 11 along the circumferential direction of the kettle body 11 is circular, designing the first tube portion 1312 in a circular shape allows the first tube portion 1312 to be distributed in more space in the inner cavity 112, making the CO2 in the inner cavity 112 more evenly distributed.

[0043] In some embodiments, please refer to Figure 4The line connecting at least two openings 1311 and the centerline of the first tube portion 1312 forms a non-zero angle α, and the opening directions of at least two openings 1311 are both oriented toward the inner cavity 112. By defining the directions of the openings 1311, the CO2 transported by the CO2 delivery tube 131 into the inner cavity 112 is directly transported to the center of the inner cavity 112, thereby optimizing the CO2 movement path and reducing the CO2 delivery time.

[0044] In some embodiments, a plurality of openings 1311 are provided at the same position along the axial direction of the first tube portion 1312. In some embodiments, two openings 1311 are provided at the same position along the axial direction of the first tube portion 1312, and the angles between the lines connecting the two openings 1311 and the axis of the first tube portion 1312 and the line connecting the center of the first tube portion 1312 and the axis of the first tube portion 1312 are 45 degrees. In some embodiments, three openings 1311 are provided at the same position along the axial direction of the first tube portion 1312, one of the openings 1311 being located on the line connecting the center of the first tube portion 1312 and the axis of the first tube portion 1312, and the angles α between the lines connecting the other two openings 1311 and the axis of the first tube portion 1312 are 45 degrees.

[0045] In some embodiments, please refer to Figure 1 The CO2 delivery pipe 131 also includes a second pipe portion 1313 extending in the axial direction of the autoclave 1 and a plurality of first pipe portions 1312. The plurality of first pipe portions 1312 are all connected to the second pipe portion 1313, and the second pipe portion 1313 is connected to the exterior of the inner cavity 112. The plurality of first pipe portions 1312 are spaced apart in the axial direction of the autoclave 1. By arranging the plurality of first pipe portions 1312 in the axial direction of the autoclave 11 at intervals, the first pipe portions 1312 are distributed in more space within the inner cavity 112, thereby achieving a more uniform distribution of CO2 in the inner cavity 112 in the axial direction of the autoclave 11.

[0046] In some embodiments, please refer to Figure 5 and Figure 6 The CO2 delivery pipe 131 includes a second pipe portion 1313 extending in the axial direction of the autoclave 1, and at least two openings 1311 are spaced apart on the second pipe portion 1313 along the extending direction of the second pipe portion 1313. The at least two openings 1311 are spaced apart along the axial direction of the autoclave 1, which facilitates the simultaneous delivery of carbon dioxide at multiple different locations, thereby achieving more uniform distribution of carbon dioxide within the inner cavity 112.

[0047] In some embodiments, please refer to Figure 5 and Figure 6The CO2 delivery pipe 131 includes a second pipe portion 1313 extending axially along the autoclave 1. At least two openings 1311 are disposed on the second pipe portion 1313. A line connecting the at least two openings 1311 and the centerline of the second pipe portion 1313 forms a non-zero angle β. By defining the orientation of the openings 1311, the CO2 delivered by the CO2 delivery pipe 131 into the inner cavity 112 is directed directly to the center of the inner cavity 112, optimizing the CO2's movement path and reducing CO2 delivery time.

[0048] In some embodiments, please refer to Figure 1 The autoclave 1 further includes a temperature sensor 17 and a first pressure sensor 18. The temperature sensor 17 and the first pressure sensor 18 are disposed in the inner cavity 112 for detecting the temperature and pressure in the autoclave body 11 in real time.

[0049] In some embodiments, the autoclave 1 with the CO2-assisted gas supply device 13 can be improved on the basis of an existing steam autoclave 1, thereby saving the design cost of a new design. For example, the autoclave 1 with the CO2-assisted gas supply device 13 also includes a water inlet 15 and a sewage outlet 16. The sewage outlet 16 is located on the bottom wall of the autoclave body 11 and is used to discharge the remaining sewage in the autoclave body 11 after the concrete blocks are cured. The water inlet 15 is located above the sewage outlet 16 and is located on the side wall of the autoclave body 11 in the vertical direction near the bottom of the autoclave body 11. The water inlet 15 is used to inject water into the autoclave body 11 to provide water for forming water vapor at a certain pressure during the curing process.

[0050] It should be noted that the autoclave 1 refers to a reaction vessel that can withstand a certain pressure. Any reaction vessel that can withstand a certain pressure belongs to the autoclave 1 referred to in the embodiment of the present application. The certain pressure range is 0.2Mpa-100Mpa. Because the mineralization process of the concrete block needs to be in a high-pressure environment, the autoclave body 11 of the autoclave 1 can provide the high-pressure environment required for the mineralization reaction process.

[0051] This application embodiment also provides a mineralization system, please refer to Figure 7The mineralization system includes the autoclave 1 having the CO2 auxiliary gas supply device 13 of the above-mentioned embodiment, a CO2 supply device 2, and a temperature and pressure regulating device 3. The CO2 supply device 2 is connected to the CO2 auxiliary gas supply device 13, and the temperature and pressure regulating device 3 is used to regulate the temperature and pressure of the CO2 supplied to the CO2 auxiliary gas supply device 13. In some embodiments, the mineralization system further includes a second pressure sensor 4 and a control device 5. The second pressure sensor 4 is disposed in the inner cavity 112. The control device 5 is used to control the CO2 supply device 2 to supply CO2 into the autoclave 11. When the CO2 supply device 2 is inputting CO2 into the inner cavity 112 of the autoclave 11, if the pressure in the inner cavity 112 of the autoclave 11 reaches a preset value, the second pressure sensor 4 outputs a signal. Based on the output signal received from the second pressure sensor 4, the control device 5 controls the CO2 supply device 2 to stop supplying CO2 into the autoclave 1. During the curing process of concrete blocks, under normal circumstances, the pressure in the inner cavity 112 is within a preset range. If the second pressure sensor 4 detects that the pressure in the inner cavity 112 is lower than the preset value, it outputs a signal. The control device 5 controls the CO2 supply device 2 to deliver CO2 to the inner cavity 112 based on the output signal sent by the second pressure sensor 4 until the pressure in the inner cavity 112 reaches the preset value. At this time, the second pressure sensor 4 outputs a signal. The control device 5 controls the CO2 supply device 2 to stop delivering CO2 based on the output signal received from the second pressure sensor 4.

[0052] In some embodiments, the temperature and pressure regulating device 3 is a circulating hot water vaporizer. The CO2 supply device 2 supplies liquid CO2, which is then vaporized by the circulating hot water vaporizer to form gaseous CO2, facilitating CO2 transmission within the pipeline. In some embodiments, the temperature and pressure regulating device 3 can also be a water bath vaporizer, which is not particularly limited.

[0053] In the description of this embodiment, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this embodiment.

[0054] In the description of this embodiment, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0055] In the description of this embodiment, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this embodiment based on the specific content of the technical solution.

[0056] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present embodiment. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0057] Although examples of the present embodiment have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and intent of the present embodiment, and the scope of the present embodiment is defined by the claims and their equivalents.

Claims

1. An autoclave with a CO2 auxiliary gas supply device, characterized in that: include: The kettle body includes an opening for allowing the concrete blocks to enter and exit, and the kettle wall of the kettle body forms an inner cavity; a kettle cover, disposed on the opening to close the inner cavity; A CO2 auxiliary gas supply device, the CO2 auxiliary gas supply device includes a CO2 delivery pipe located in the inner cavity, the CO2 delivery pipe includes at least two openings at different positions arranged on the CO2 delivery pipe, the CO2 auxiliary gas supply device also includes an air inlet located outside the kettle body, the air inlet is connected to the CO2 delivery pipe, and the air inlet can be connected to the CO2 supply device located outside the kettle body.

2. The autoclave according to claim 1, wherein At least one of the at least two openings is arranged in the upper part of the inner cavity, and at least one of the at least two openings is arranged in the lower part of the inner cavity. The space above the center of the inner cavity in the vertical direction is the upper part of the inner cavity, and the space below the center of the inner cavity in the vertical direction is the lower part of the inner cavity.

3. The autoclave according to claim 2, wherein The inner cavity extends horizontally to the opening, the cross-section of the kettle body along the axial direction of the autoclave is circular, the CO2 delivery pipe includes a first pipe portion extending along the circumferential direction of the kettle body, and the at least two openings are arranged in the first pipe portion.

4. The autoclave according to claim 3, wherein The autoclave further includes a transport device, which is disposed at the bottom of the inner cavity and is used to transport concrete blocks along the axial direction of the autoclave body. The projection of the first pipe portion in the axial direction of the autoclave is located outside the projection of the transport device in the axial direction of the autoclave.

5. The autoclave according to claim 3, wherein The first tube portion is in a circular ring shape.

6. The autoclave according to claim 3, wherein A line connecting the at least two openings and the center line of the first tube portion forms a non-zero angle α, and the opening directions of the at least two openings are both toward the inner cavity.

7. The autoclave according to any one of claims 3 to 6, wherein The CO2 delivery pipe also includes a second tube portion extending along the axial direction of the autoclave and multiple first tube portions, each of the multiple first tube portions is connected to the second tube portion, and the second tube portion is connected to the outside of the inner cavity. The multiple first tube portions are spaced apart along the axial direction of the autoclave.

8. The autoclave according to claim 1, wherein The CO2 delivery pipe includes a second pipe portion extending in the axial direction of the autoclave, and the at least two openings are arranged on the second pipe portion at intervals along the extending direction of the second pipe portion.

9. The autoclave according to claim 1, wherein The CO2 delivery pipe includes a second pipe portion extending in the axial direction of the autoclave, the at least two openings are arranged on the second pipe portion, and a line connecting the at least two openings and the center line of the second pipe portion forms a non-zero angle β.

10. A mineralization system, characterized in that: It comprises the autoclave according to any one of claims 1 to 9, a CO2 supply device, and a temperature and pressure regulating device, wherein the CO2 supply device is connected to the CO2 auxiliary gas supply device, and the temperature and pressure regulating device is used to regulate the temperature of the CO2 delivered to the CO2 auxiliary gas supply device.

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