System for mineralization curing of concrete pieces

Abstract

The application discloses a kind of concrete product mineralization curing systems, belong to building material product field.The system includes carbon dioxide gas source, curing kettle and carbon dioxide gas regulating storage chamber;Carbon dioxide gas source is connected with the gas inlet of curing kettle and carbon dioxide gas regulating storage chamber respectively;The recovery port of carbon dioxide gas regulating storage chamber is connected with the gas outlet of curing kettle, and the air inlet of curing kettle is connected with the gas outlet of carbon dioxide gas regulating storage chamber;Spraying system and vacuum pump are arranged on curing kettle, and the sensor sensor for measuring humidity, temperature, pressure and carbon dioxide concentration is arranged on curing kettle and carbon dioxide gas regulating storage chamber, and sensor is connected with control console by data connection line.The application recycles and stores the remaining carbon dioxide gas after mineralization reaction, recycling after adjusting pressure concentration, reduces the dispersion of carbon dioxide gas and improves utilization.

Description

Technical Field

[0001] This invention relates to the field of building materials, and in particular to a mineralization curing system for concrete components. Background Technology

[0002] Carbon dioxide emissions generated during industrial production, or carbon dioxide collected through other means, are applied to the curing of concrete bricks to achieve a mineralization reaction. This enhances the strength of the bricks while simultaneously utilizing carbon dioxide gas (carbon capture, utilization, and storage). The basic principle is that carbon dioxide gas permeates through the tiny pores on the surface of the bricks, reacting with the calcium and magnesium alkaline components to form carbonates, thus sealing in carbon dioxide and simultaneously enhancing the mechanical properties of the concrete bricks. This process is called mineralization curing.

[0003] Concrete components are cured with carbon dioxide under specific temperature, humidity, and pressure conditions. Whether in the laboratory or industrial production setting, after curing the specimens according to the established procedures, the carbon dioxide gas produced is typically released directly into the atmosphere, which poses an environmental problem. Summary of the Invention

[0004] This invention provides a concrete component mineralization curing system that recovers and stores the residual carbon dioxide gas after the mineralization reaction, and then recycles it after adjusting the pressure and concentration, thereby reducing the escape of carbon dioxide gas and improving the utilization rate.

[0005] The technical solution provided by this invention is as follows:

[0006] A concrete component mineralization curing system includes a carbon dioxide gas source, a curing tank, and a carbon dioxide gas conditioning and storage chamber, wherein:

[0007] The carbon dioxide gas source is connected to the inlet of the curing vessel via a carbon dioxide gas source pipeline, and the carbon dioxide gas source is connected to the inlet of the carbon dioxide gas regulating storage chamber via a carbon dioxide gas regulating pipeline; the outlet of the curing vessel is connected to the recovery port of the carbon dioxide gas regulating storage chamber via a carbon dioxide recovery pipeline, and the outlet of the carbon dioxide gas regulating storage chamber is connected to the replenishment port of the curing vessel via a carbon dioxide gas replenishment pipeline.

[0008] Each of the carbon dioxide gas source pipeline, carbon dioxide gas regulating pipeline, carbon dioxide recovery pipeline, and carbon dioxide gas replenishment pipeline is equipped with a solenoid valve. The carbon dioxide gas regulating pipeline is equipped with a gas check valve, and the conduction direction of the gas check valve is from the carbon dioxide gas source to the carbon dioxide gas regulating and storage chamber. The carbon dioxide recovery pipeline is equipped with a vacuum pump.

[0009] The curing vessel is equipped with a spray system and a vacuum pump. Sensors are installed on the curing vessel and the carbon dioxide gas conditioning and storage chamber to measure the humidity, temperature, pressure and carbon dioxide concentration in the curing vessel and the carbon dioxide gas conditioning and storage chamber. The sensors are connected to the control console via a data connection cable.

[0010] Furthermore, the number of curing tanks is multiple, and the multiple curing tanks are arranged side by side.

[0011] Furthermore, the carbon dioxide gas source pipeline includes a main gas source pipe and a number of gas source branch pipes equal to the number of curing vessels. One end of the main gas source pipe is connected to the carbon dioxide gas source, and the other end is connected in parallel to one end of a plurality of gas source branch pipes. The other ends of the plurality of gas source branch pipes are respectively connected to the air inlet of their respective curing vessels.

[0012] Furthermore, solenoid valves are installed on the main gas supply pipe and each gas supply branch pipe.

[0013] Furthermore, the carbon dioxide recovery pipeline includes a main recovery pipe and the same number of recovery branch pipes as the curing tanks. One end of each recovery branch pipe is connected to the outlet of its respective curing tank, and the other end of each recovery branch pipe is connected to one end of the main recovery pipe. The other end of the main recovery pipe is connected to the inlet of the carbon dioxide gas conditioning and storage chamber.

[0014] Furthermore, the air pump is installed on the main recovery pipe, and each air source branch pipe is equipped with a solenoid valve.

[0015] Furthermore, the carbon dioxide gas replenishment pipeline includes a main replenishment pipe and a number of replenishment branch pipes equal to the number of the curing vessels. One end of the main replenishment pipe is connected to the outlet of the carbon dioxide gas regulating and storage chamber, and the other end is connected in parallel to one end of a plurality of replenishment branch pipes. The other ends of the plurality of replenishment branch pipes are respectively connected to the gas replenishment port of their respective curing vessels.

[0016] Furthermore, solenoid valves are installed on the main supplementary pipe and each supplementary branch pipe.

[0017] The present invention has the following beneficial effects:

[0018] In this invention, after the initial mineralization reaction, the remaining carbon dioxide gas is recovered and stored to the maximum extent through a carbon dioxide gas conditioning storage chamber. After adjusting the pressure and concentration, it is used as a supplement for the next maintenance cycle, thus recycling the carbon dioxide gas, minimizing its escape and improving its utilization rate, and reducing the probability of carbon dioxide escaping into the atmosphere. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the concrete component mineralization curing system of the present invention. Detailed Implementation

[0020] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0021] This invention provides a concrete component mineralization curing system, such as... Figure 1 As shown, it includes a carbon dioxide gas source 1, curing tanks 2, 3, and 4, and a carbon dioxide gas conditioning and storage chamber 8, wherein:

[0022] Carbon dioxide source 1 is industrial-grade carbon dioxide with a purity between 99.5% and 99.9%. Carbon dioxide source 1 is connected to the inlets of curing vessels 2, 3, and 4 via carbon dioxide source pipelines (a+a1, a2, a3). The curing vessels are used for carbon dioxide mineralization curing of concrete products. Carbon dioxide source 1 is connected to the inlet of carbon dioxide gas regulating and storage chamber 8 via carbon dioxide gas regulating pipeline b. Carbon dioxide gas regulating and storage chamber 8 is used for the recovery of carbon dioxide gas after the reaction and for the regulation of its concentration and pressure.

[0023] The gas outlets of curing vessels 2, 3, and 4 are connected to the recovery port of carbon dioxide gas conditioning and storage chamber 8 through carbon dioxide recovery pipes (c1, c2, c3+c). The gas outlet of carbon dioxide gas conditioning and storage chamber 8 is connected to the gas replenishment port of curing vessels 2, 3, and 4 through carbon dioxide gas replenishment pipes (d+d1, d2, d3).

[0024] Each of the carbon dioxide gas source pipeline, carbon dioxide gas regulation pipeline, carbon dioxide recovery pipeline, and carbon dioxide gas replenishment pipeline is equipped with a solenoid valve. A gas one-way valve 11 is installed on the carbon dioxide gas regulation pipeline b. The conduction direction of the gas one-way valve 11 is from the carbon dioxide gas source 1 to the carbon dioxide gas regulation and storage chamber 8. A vacuum pump 9 is installed on the carbon dioxide recovery pipeline to draw the reacted carbon dioxide gas into the carbon dioxide gas regulation and storage chamber.

[0025] Curing tanks 2, 3, and 4 are equipped with spray systems 204, 304, and 404, and vacuum pumps 5, 6, and 7. The spray systems are installed inside the curing tanks to provide the required humidity for the curing environment. The vacuum pumps are used to evacuate the interior of the curing tanks to negative pressure, creating a vacuum environment. Curing tanks 2, 3, and 4, and the carbon dioxide gas conditioning and storage chamber 8 are equipped with sensors 12 to measure the humidity, temperature, pressure, and carbon dioxide concentration within the curing tanks and the carbon dioxide gas conditioning and storage chamber. Sensors 12 are connected to the control console 13 via data connection line e for data transmission, enabling automatic adjustment of humidity, temperature, pressure, and concentration within the tanks. Each spray system 204, 304, and 404, and each solenoid valve are remotely controlled via the control console 13.

[0026] As an improvement of this utility model embodiment, the number of curing tanks can be multiple, and multiple curing tanks can be arranged side by side. For example, Figure 1 As shown, there are three curing tanks, designated by reference numerals 2, 3, and 4. The spraying systems of curing tanks 2, 3, and 4 are designated by reference numerals 204, 304, and 404, respectively, and their vacuum pumps are designated by reference numerals 5, 6, and 7, respectively.

[0027] Based on this, the carbon dioxide gas source pipeline includes a main gas source pipe a and gas source branch pipes a1, a2, and a3, which are the same number as the curing vessels. One end of the main gas source pipe a is connected to the carbon dioxide gas source 1, and the other end is connected in parallel to one end of multiple gas source branch pipes a1, a2, and a3. The other ends of multiple gas source branch pipes a1, a2, and a3 are respectively connected to the air inlets of their respective curing vessels 2, 3, and 4.

[0028] Each gas source main pipe a and each gas source branch pipe a1, a2, a3 is equipped with its own solenoid valve 101, 201, 301, 401.

[0029] The carbon dioxide recovery pipeline includes a main recovery pipe c and recovery branch pipes c1, c2, and c3, which are the same number as the curing vessels. One end of each recovery branch pipe c1, c2, and c3 is connected to the outlet of its respective curing vessel 2, 3, or 4. The other end of each recovery branch pipe c1, c2, and c3 is connected to one end of the main recovery pipe c. The other end of the main recovery pipe c is connected to the inlet of the carbon dioxide gas conditioning and storage chamber 12.

[0030] The air pump 9 is installed on the main recovery pipe c, and each air source branch pipe c1, c2, and c3 is equipped with its own solenoid valve 203, 303, and 403.

[0031] The carbon dioxide gas replenishment pipeline includes a main replenishment pipe d and replenishment branch pipes d1, d2, and d3, which are the same number as the curing vessels. One end of the main replenishment pipe d is connected to the outlet of the carbon dioxide gas regulating and storage chamber 8, and the other end is connected in parallel to one end of each of the multiple replenishment branch pipes d1, d2, and d3. The other ends of the multiple replenishment branch pipes d1, d2, and d3 are respectively connected to the gas replenishment ports of their respective curing vessels 2, 3, and 4.

[0032] Each of the main supplementary pipe d and each supplementary branch pipe d1, d2, and d3 is equipped with its own solenoid valves 10, 202, 302, and 402.

[0033] The solenoid valve 102 on the carbon dioxide gas regulating pipeline b is located between the carbon dioxide gas source 1 and the gas check valve 11.

[0034] The process of using this invention is as follows:

[0035] S1: When starting the curing work, first open the solenoid valve 101. Carbon dioxide enters the gas source main pipe a through the solenoid valve 101. Keep the solenoid valves 201, 301 and 401 closed. Next, open curing tanks 2, 3 and 4, and put the specimens to be cured into them respectively. After closing curing tanks 2, 3 and 4 to ensure a seal, use vacuum pumps 5, 6 and 7 to evacuate the inside of curing tanks 2, 3 and 4 to create a negative pressure state inside the curing tanks and maintain it for a period of time. This operation can remove some of the air from the pores of the material of the specimens to be cured, allowing carbon dioxide gas to penetrate into the concrete more smoothly.

[0036] S2: Open solenoid valves 201, 301 and 401 to introduce carbon dioxide gas into curing tanks 2, 3 and 4, and run spray systems 204, 304 and 404. Control the pressure, concentration and humidity of the introduced carbon dioxide through data monitored by sensor 12.

[0037] S3: After the curing is completed, close solenoid valves 201, 301, 401, 101 and 102, and open solenoid valves 203, 303 and 403. Use the vacuum pump 9 to draw the remaining carbon dioxide gas in curing tanks 2, 3 and 4 into the carbon dioxide gas conditioning and storage chamber 8 through recovery branch pipes c1, c2, c3 and recovery main pipe c. Then close solenoid valves 203, 303 and 403, open solenoid valve 102 to let the carbon dioxide in the gas source enter the carbon dioxide gas conditioning and storage chamber 8 through the carbon dioxide gas conditioning pipe b to adjust the carbon dioxide concentration, pressure and other parameters. According to the monitoring data of sensor 12, adjust the carbon dioxide gas in the carbon dioxide gas conditioning and storage chamber 8 to a suitable pressure and concentration.

[0038] S4: After the carbon dioxide gas is regulated, use the gas check valve 11 to prevent the gas from flowing back into the carbon dioxide gas regulation pipeline b, close the solenoid valve 102, open the solenoid valve 10 to allow the regulated carbon dioxide gas to enter the replenishment main pipe d, keep the other valves closed, open the curing tanks 2, 3, and 4 to put in the next batch of specimens to be cured, enter the next curing work stage, and repeat S1 to treat the specimens to be cured.

[0039] Simultaneously, solenoid valves 202, 302, and 402 are opened, allowing the regulated carbon dioxide gas to enter curing tanks 2, 3, and 4 through replenishment branch pipes d1, d2, and d3. The regulated carbon dioxide gas is used for curing. At the same time, solenoid valve 101 is opened to allow the gas source carbon dioxide to enter the gas source main pipe a. Based on the monitoring data of sensor 12 in curing tanks 2, 3, and 4, the opening and closing of solenoid valves 201, 301, and 401 are adjusted in real time to replenish the gas source carbon dioxide into curing tanks 2, 3, and 4 in a timely manner, ensuring the carbon dioxide concentration and pressure during curing. Based on the monitoring data of sensor 12, the spray system 204, 304, and 404 are opened to ensure the humidity during curing.

[0040] S5. After completing the maintenance, repeat S3-S4 to form carbon dioxide maintenance and the recycling of carbon dioxide gas.

[0041] In this invention, after the initial mineralization reaction, the remaining carbon dioxide gas is recovered and stored to the maximum extent through a carbon dioxide gas conditioning storage chamber. After adjusting the pressure and concentration, it is used as a supplement for the next maintenance cycle, thus recycling the carbon dioxide gas, minimizing its escape and improving its utilization rate, and reducing the probability of carbon dioxide escaping into the atmosphere.

[0042] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A concrete article mineralization curing system, characterized in that, Includes a carbon dioxide gas source, a curing vessel, and a carbon dioxide gas conditioning and storage chamber, wherein: The carbon dioxide gas source is connected to the inlet of the curing vessel via a carbon dioxide gas source pipeline, and the carbon dioxide gas source is connected to the inlet of the carbon dioxide gas regulating storage chamber via a carbon dioxide gas regulating pipeline; the outlet of the curing vessel is connected to the recovery port of the carbon dioxide gas regulating storage chamber via a carbon dioxide recovery pipeline, and the outlet of the carbon dioxide gas regulating storage chamber is connected to the replenishment port of the curing vessel via a carbon dioxide gas replenishment pipeline. Each of the carbon dioxide gas source pipeline, carbon dioxide gas regulating pipeline, carbon dioxide recovery pipeline, and carbon dioxide gas replenishment pipeline is equipped with a solenoid valve. The carbon dioxide gas regulating pipeline is equipped with a gas check valve, and the conduction direction of the gas check valve is from the carbon dioxide gas source to the carbon dioxide gas regulating and storage chamber. The carbon dioxide recovery pipeline is equipped with a vacuum pump. The curing vessel is equipped with a spray system and a vacuum pump. The curing vessel and the carbon dioxide gas conditioning and storage chamber are equipped with sensors that measure the humidity, temperature, pressure and carbon dioxide concentration in the curing vessel and the carbon dioxide gas conditioning and storage chamber. The sensors are connected to the control console via a data connection cable. After the initial mineralization reaction, the remaining carbon dioxide gas is recovered and stored in the carbon dioxide gas conditioning and storage chamber. The pressure and concentration of carbon dioxide in the carbon dioxide gas conditioning and storage chamber are regulated by a carbon dioxide gas source and then used as a supplement for the next maintenance cycle.

2. The concrete article mineralization curing system of claim 1, wherein, The number of curing tanks is multiple, and the multiple curing tanks are arranged side by side.

3. The concrete article mineralization curing system of claim 2, wherein, The carbon dioxide gas source pipeline includes a main gas source pipe and a number of gas source branch pipes equal to the number of curing vessels. One end of the main gas source pipe is connected to the carbon dioxide gas source, and the other end is connected in parallel to one end of a plurality of gas source branch pipes. The other ends of the plurality of gas source branch pipes are respectively connected to the air inlet of their respective curing vessels.

4. The concrete article mineralization curing system of claim 3, wherein, Solenoid valves are installed on the main gas supply pipe and each gas supply branch pipe.

5. The concrete article mineralization curing system of claim 2, wherein, The carbon dioxide recovery pipeline includes a main recovery pipe and the same number of recovery branch pipes as the curing tanks. One end of each recovery branch pipe is connected to the outlet of its respective curing tank, and the other end of each recovery branch pipe is connected to one end of the main recovery pipe. The other end of the main recovery pipe is connected to the inlet of the carbon dioxide gas conditioning and storage chamber.

6. The concrete article mineralization curing system of claim 5, wherein, The air pump is installed on the main recovery pipe, and each air source branch pipe is equipped with a solenoid valve.

7. The concrete article mineralization curing system of claim 2, wherein, The carbon dioxide gas replenishment pipeline includes a main replenishment pipe and a number of replenishment branch pipes equal to the number of curing vessels. One end of the main replenishment pipe is connected to the outlet of the carbon dioxide gas regulating and storage chamber, and the other end is connected in parallel to one end of a plurality of replenishment branch pipes. The other ends of the plurality of replenishment branch pipes are respectively connected to the gas replenishment port of their respective curing vessels.

8. The concrete article mineralization curing system of claim 7, wherein, Solenoid valves are installed on the main supplementary pipe and each supplementary branch pipe.

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