CO2 in-situ mineralization and block chain traceability system and method in concrete mixing system

Abstract

The invention discloses a CO2 in-situ mineralization and block chain traceability system and method in a concrete mixing system, and belongs to the technical field of low-carbon building materials and digital authentication. Aiming at the pain points of low mineralization efficiency, incompatibility with a continuous production system, lack of credible traceability means of carbon data and the like in the existing CO2 curing technology, the CO2 mineralization reaction is innovatively moved forward from a traditional curing stage to a concrete stirring stage, and efficient dispersion and rapid mineralization of CO2 are realized by virtue of a dynamic stirring flow field. The system integrates four core modules of CO2 in-situ injection, process cooperative control, carbon metering and block chain traceability. The method comprises the following steps: cooperatively injecting quantitative CO2 in a stirring process, metering the carbon sequestration amount in real time, and uploading key data to a block chain for evidence storage to generate a tamper-resistant digital carbon certificate. According to the method, the CO2 mineralization efficiency is remarkably improved, low-cost deep integration with an existing production line is achieved, the concrete carbon emission reduction amount is endowed with checkable and tradable asset attributes through the block chain technology, and a complete solution from negative carbon manufacturing to value fulfillment is created for the industry.

Description

Technical Field

[0001] This invention relates to the field of low-carbon manufacturing and digital authentication technology for building materials, specifically to a CO2 in-situ mineralization and blockchain traceability system and method in a concrete mixing system. Background Technology

[0002] The cement concrete industry is one of the world's leading sources of carbon dioxide emissions, accounting for approximately 7%-8% of global anthropogenic carbon emissions. CO2 mineralization curing technology is a promising carbon-negative technology. Its basic principle involves utilizing cement hydration products such as calcium hydroxide and calcium silicate hydrate to react with CO2 through a carbonation reaction, generating thermodynamically stable substances like calcium carbonate (CaCO3) and silica gel, thereby permanently sealing CO2 within the concrete. This process not only achieves carbon fixation but also improves the early strength, abrasion resistance, and durability of the concrete.

[0003] However, current mainstream CO2 curing technologies generally suffer from significant technical bottlenecks and application limitations. Existing technologies typically schedule the mineralization process during a separate curing stage after the concrete components have been formed, such as by introducing high-pressure CO2 gas into the precast components in a curing kiln or sealed chamber. This post-curing method has the following inherent drawbacks:

[0004] First, the reaction efficiency is low. During mineralization in hardened concrete, CO2 gas mainly diffuses slowly through the already formed dense microstructure via its concentration gradient, resulting in extremely high mass transfer resistance and severely limiting the reaction rate. Typically, long curing periods of several to tens of hours are required to achieve a certain depth and efficiency of carbon fixation, which is difficult to meet the pace of continuous and rapid production and supply of modern ready-mixed concrete.

[0005] Second, it is out of step with mainstream production methods. Ready-mixed concrete accounts for the vast majority of total concrete production, characterized by centralized mixing, fluidized transport, and on-site pouring. Existing independent curing processes are difficult to reconcile with this continuous flow model of mixing-transportation-pouring, limiting the application of this technology in a wider market.

[0006] Third, environmental benefits are difficult to credibly quantify and realize. Although the technology itself has the potential to sequester carbon, the resulting carbon emission reductions lack accurate, real-time, transparent, and widely recognized measurement and verification methods. Existing methods mostly rely on theoretical calculations or interim testing, and the data is easily tampered with and difficult to trace. This fails to meet the stringent requirements of carbon trading markets or green building certification systems for data authenticity, verifiability, and uniqueness, making it difficult to realize the assetization of its environmental value.

[0007] In summary, there is an urgent need in this field for an innovative solution that can efficiently and cost-effectively embed the CO2 mineralization process into existing concrete mixing processes and provide each production unit with real-time, tamper-proof carbon credit data credentials. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a CO2 in-situ mineralization and blockchain traceability system and method in concrete mixing systems.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A CO2 in-situ mineralization and blockchain traceability system in a concrete mixing system includes:

[0011] The CO2 in-situ mineralization injection module is used to quantitatively introduce CO2 into the mixture during the concrete mixing process.

[0012] The carbon metering and data acquisition module is used to measure the amount of CO2 introduced by the CO2 in-situ mineralization injection module and calculate the net CO2 sequestration of this batch of concrete based on this.

[0013] The blockchain carbon footprint traceability module is used to upload batch production data, including the net CO2 sequestration, to the blockchain network for storage and to generate an immutable digital carbon footprint certificate.

[0014] Furthermore, the CO2 in-situ mineralization injection module is integrated with the concrete mixing host and includes a CO2 supply unit and an injection terminal; the injection terminal is located inside the mixing host or in the feed inlet area and is used to inject gaseous CO2 or a solution containing dissolved CO2 into the mixture inside the mixing host.

[0015] Furthermore, the CO2 in-situ mineralization injection module also includes a metering and control unit for precisely controlling the CO2 supply flow rate.

[0016] Furthermore, it also includes a process coordination control unit, which is communicatively connected to the control system of the CO2 in-situ mineralization injection module and the concrete mixing host, and is used to coordinately control the start-up timing, injection parameters and mixing parameters of the mixing host of CO2 injection according to the preset mixing process program.

[0017] Furthermore, the preset mixing process is a step-by-step feeding and mixing process; the process coordination control unit is configured to trigger the CO2 in-situ mineralization injection module to start after the cementitious material has been initially hydrated and the fluidity of the mixture slurry meets the preset conditions in the step-by-step feeding and mixing process.

[0018] Furthermore, the carbon metering and data acquisition module has a built-in or connected carbon sequestration metering model; the model uses the amount of CO2 consumed and the cementitious material composition of the batch of concrete as input to calculate the net amount of CO2 sequestration.

[0019] Secondly, this application provides a method for CO2 in-situ mineralization and blockchain traceability using the above system, comprising the following steps:

[0020] S1. During the concrete mixing process, CO2 is quantitatively introduced into the mixture to induce an in-situ mineralization reaction.

[0021] S2. Measure the amount of CO2 consumed in this batch and calculate the net CO2 sequestration of this batch of concrete;

[0022] S3. Upload the batch production data containing the net CO2 sequestration to the blockchain network for evidence storage and obtain a carbon footprint traceability certificate;

[0023] S4. Associate the carbon footprint traceability certificate with the product information of the batch of concrete.

[0024] Furthermore, the step of quantitatively introducing CO2 into the mixture specifically involves: in the stepwise feeding and mixing process, when the cementitious material has been initially hydrated and the mixture slurry has reached the predetermined fluidity, CO2 is injected into the mixing host.

[0025] Furthermore, the carbon footprint traceability certificate is a blockchain transaction hash, which is converted into a QR code or digital label and attached to the factory invoice or product of that batch of concrete.

[0026] Compared with the prior art, this application has the following beneficial effects:

[0027] The present invention has the following significant advancements and beneficial effects:

[0028] 1. Disruptive Innovation and Revolutionary Efficiency Improvement in Mineralization Process: This invention breaks through the traditional thinking of limiting CO2 mineralization to the curing stage, creatively placing the carbon fixation reaction pre-positioned in the stirring stage. In the dynamic high-shear flow field formed by the mixer, CO2 is instantly dispersed into microbubbles, maximizing contact with the not-yet-fully-coagulated slurry. This completely changes the slow, diffusion-controlled process of mineralization reaction into a fast, kinetically controlled process. According to literature and experimental data, injecting CO2 in the optimized stirring stage can increase the initial reaction rate by several times compared to traditional curing kiln methods, completing primary mineralization of most reactive interfaces within minutes. Based on cementitious material theory, the overall mineralization efficiency of carbideable calcium content can be significantly increased from 20%-40% in traditional curing to 50%-70%. This not only significantly shortens the time required to reach the equivalent carbon fixation amount, achieving carbon fixation during production, but also ensures that the calcium carbonate generated by the reaction is more uniformly distributed in the slurry, contributing more effectively to the early microstructure densification.

[0029] 2. Seamless integration with existing production systems and low-cost deployment advantages: The system of this invention is designed as an add-on functional module for concrete batching plants, without requiring changes to the main structure, production process, or the construction of new independent curing facilities. It directly utilizes the existing mixing host as a reactor, achieving in-situ deep integration of the carbon sequestration process with the concrete production process. This integration method greatly reduces fixed asset investment and additional site and energy consumption requirements, making the large-scale promotion and application of negative carbon concrete technology extremely feasible in terms of economy and operability, especially suitable for commercial concrete batching plants with large production volumes.

[0030] 3. Credibility, Assetization, and Blockchain Application Innovation of Carbon Data: This invention is the first to deeply integrate blockchain technology into the carbon footprint traceability of the concrete production process, addressing the core pain point of lack of trust in carbon data in this industry. Traditional carbon accounting relies on post-event reporting and centralized databases, which are susceptible to tampering and double-counting. This invention automatically collects key data through IoT devices and stores it on the blockchain in real time. Utilizing the distributed, immutable, and traceable characteristics of blockchain, it transforms physical carbon sequestration into credible digital carbon assets in the digital world. Each batch of concrete possesses a unique, blockchain-verified carbon footprint certificate, giving its carbon emission reductions internationally recognized measurable, reportable, and verifiable attributes. This provides a solid technical and data foundation for concrete products to directly participate in carbon emission trading or assist construction projects in obtaining green building certification.

[0031] 4. Intelligent Process Collaboration and Performance Optimization: Through a process collaborative control unit, this invention achieves intelligent linkage between CO2 injection and concrete mixing processes. In particular, when combined with advanced mixing processes such as step-by-step feeding, CO2 can be precisely injected at the golden window—the initial stage of cement hydration exothermic reaction, when the slurry pH has risen to the ideal range, and before the fluidity decreases due to over-hydration. This collaborative control not only maximizes the efficiency of the mineralization reaction but also optimizes the temperature rise process and early performance development of concrete through the utilization of reaction heat and the immediate formation of calcium carbonate. Experimental data shows that concrete produced using this method exhibits a 10%-20% increase in 1-day compressive strength compared to the baseline group, maintains stable or slightly improved 28-day strength, and meets construction requirements in terms of workability. Attached Figure Description

[0032] Figure 1 This is a module diagram of CO2 in-situ mineralization and blockchain traceability system in a concrete mixing system.

[0033] Figure 2 A flowchart of CO2 in-situ mineralization and blockchain traceability method.

[0034] Figure 3 This schematic diagram illustrates the composition of an electronic device according to an exemplary embodiment of the present disclosure.

[0035] Figure 4 The schematic diagram illustrates the composition of a storage medium in an exemplary embodiment of the present disclosure. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Furthermore, in this invention, an element referred to as fixed to or disposed on another element may be directly disposed on the other element, or there may be an intermediate element. When an element is considered to be connected to another element, it may be directly connected to the other element, or there may be an intermediate element present simultaneously. The terms vertical, horizontal, left, right, and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] Example 1

[0039] Combination Figures 1-4 This application provides a method and system for CO2 in-situ mineralization and blockchain carbon footprint traceability integrated into a concrete mixing system.

[0040] To achieve the above objectives, the present invention adopts the following technical solution:

[0041] Firstly, such as Figure 1 As shown: This invention provides a CO2 in-situ mineralization and blockchain carbon footprint traceability system integrated into a concrete mixing system. The system includes a CO2 in-situ mineralization injection module, a carbon metering and data acquisition module, and a blockchain carbon footprint traceability module.

[0042] The CO2 in-situ mineralization injection module is used to quantitatively introduce CO2 into the concrete mixture during the mixing process. This module can be integrated with the concrete mixing host for technological purposes. In a preferred embodiment, the module includes a CO2 supply unit such as a liquid CO2 storage tank, a gasification unit, and an injection terminal. The injection terminal is located within the internal cavity of the mixing host, such as near the mixing arm or inlet area. During mixing, the module injects metered gaseous CO2 directly into the dynamically mixed concrete mixture slurry according to instructions. Alternatively, a bypass system can be used to pre-dissolve CO2 in a portion of the mixing water to prepare a saturated carbonated aqueous solution, which is then pumped into the mixing host through a liquid pipeline. More preferably, the module also includes a precision mass flow meter and other metering and control unit for precise control of the CO2 flow rate.

[0043] The carbon metering and data acquisition module is used to measure the amount of CO2 introduced by the CO2 in-situ mineralization injection module and calculate the net CO2 sequestration of this batch of concrete. This module is signal-connected to the metering control unit, continuously acquiring and recording the cumulative CO2 consumption during the injection process in real time. Simultaneously, it can correlate and acquire key process parameters such as the real-time power of the mixing host, the mixing time at each stage, and slurry temperature sensor data. This module has a built-in carbon sequestration metering model, either internally or via an interface. Based on the input actual CO2 consumption, the detailed composition and quantity of the cementitious materials in this batch of concrete (such as cement type, admixture type and proportion), and a preset reaction kinetic efficiency coefficient, the model estimates and outputs the net CO2 sequestration of this batch of concrete in real time, i.e., the actual sequestered CO2 mass after deducting losses such as escape.

[0044] The blockchain carbon footprint traceability module is used to upload batch production data, including the net CO2 sequestration, to the blockchain network for notarization, generating an immutable digital carbon footprint certificate. This module is connected to the carbon metering and data acquisition module. Its core function is to solidify and upload key information generated during each batch of concrete production to the blockchain. Specifically, it packages and generates a unique data hash value, such as SHA-256, for the batch, including a unique identifier such as a production batch number containing time and production line information, key production data such as precise timestamps, formula codes, total cementitious material usage, and core carbon data such as the net CO2 sequestration estimated by the metering model. Subsequently, this hash and related necessary plaintext information are uploaded to a pre-built permissioned blockchain or industry consortium blockchain network node through a secure application programming interface (API). The blockchain network verifies and confirms the notarization request through a consensus mechanism and records it in an immutable distributed ledger, while generating a globally unique transaction hash TxID for this batch of data, which can serve as a digital carbon asset certificate.

[0045] Furthermore, to optimize the efficiency of the mineralization reaction, the system also includes a process coordination control unit. This unit establishes a bidirectional communication connection with the control terminal of the CO2 in-situ mineralization injection module and the control system of the concrete mixer. This unit is configured to receive and execute predefined mixing process instructions or those issued by the upstream AI formula optimization system. It can precisely control the start-up timing, duration, and injection flow rate of CO2 injection according to the timing requirements of an optimized mixing process, and simultaneously adjust the rotation speed and mixing intensity of the mixer. The goal is to ensure that CO2 is introduced during the reaction window period when the concrete mixture has optimal fluidity and the active components of the cementitious materials are fully exposed, and that instantaneous and efficient mixing and initial reaction of the gas-liquid-solid three phases are achieved under strong mechanical stirring. In a preferred embodiment, the optimized process is a step-by-step feeding and mixing process. Specifically, the process coordination control unit is configured to trigger the CO2 in-situ mineralization injection module to start working when the cementitious materials have completed preliminary hydration and the mixture slurry reaches a predetermined fluidity and alkalinity range in the step-by-step feeding and mixing process.

[0046] Secondly, such as Figure 2 As shown: This invention provides a method for CO2 in-situ mineralization and blockchain carbon footprint traceability using the above system, comprising the following steps:

[0047] During the concrete mixing process, according to optimized process instructions, CO2 injection is initiated at a preset mixing stage. A quantitative amount of CO2 is introduced into the mixture within the mixing host, causing an in-situ mineralization reaction in a strong shear flow field. Preferably, the timing of CO2 injection is coordinated with the concrete mixing process stage, especially in step-feed mixing processes, where CO2 is injected at a stage where the cementitious materials have partially hydrated, the mixture slurry has good fluidity, and the alkalinity has increased. Under the intense shearing, convection, and compression effects generated by the mixing blades, the CO2 is rapidly broken into micro- and nano-sized bubbles and uniformly dispersed throughout the slurry system. It then undergoes a rapid mineralization reaction with dissolved calcium ions and the surface of cement hydration products, generating calcium carbonate.

[0048] The system simultaneously measures the total CO2 consumed in this batch in real time and calculates the net CO2 sequestration of this batch of concrete based on the carbon sequestration metering model. During CO2 injection and reaction, the carbon metering module records the cumulative CO2 consumption in real time. At the end of batch mixing or injection, the carbon sequestration metering model is invoked to automatically calculate the net CO2 sequestration of this batch of concrete, taking into account CO2 consumption, raw material data, and efficiency coefficients.

[0049] The unique identification information, key production data, and calculated net CO2 sequestration of this batch of concrete are hashed and uploaded to a blockchain network for notarization, obtaining a unique carbon footprint traceability certificate. The blockchain traceability module packages the core information of this batch, including production ID, formula ID, time, and net sequestration, generates a hash, and sends it to the blockchain network. After verification by network nodes, this information is permanently recorded, and a unique on-chain transaction ID is returned as a trusted credential. The blockchain network is preferably a permissioned blockchain or a construction industry consortium blockchain.

[0050] The carbon footprint traceability certificate is linked to the product information of the concrete batch for subsequent querying, certification, or trading. Specifically, the transaction ID returned by the blockchain or the QR code generated from it can be strongly linked to the electronic invoice, transport document, or product label of the concrete batch. Downstream construction units, supervision units, owners, third-party certification bodies, or carbon asset verification parties can all publicly verify the tamper-proof carbon sequestration record of the concrete batch in the corresponding blockchain explorer by scanning the QR code or entering the transaction ID.

[0051] Example 2

[0052] This invention system, as a functional enhancement module, is integrated into a standard commercial concrete mixing plant. A liquid CO2 storage tank and gasification unit serve as the gas source, providing gaseous CO2 at a stable pressure. Pipelines connect to a valve assembly equipped with a precision mass flow meter, ultimately leading into the mixing unit. The injection point is preferably located on the mixing unit cover plate, extending above the mixing zone through a wear-resistant nozzle, or installed on the side wall at a location avoiding direct impact from the blades.

[0053] A specific implementation process is as follows:

[0054] Before production begins, the mixing plant control system determines the production formula (C35 strength grade) based on the order and adds fly ash. The process coordination control unit receives specific mixing process instructions for this production from the formula management system. This embodiment adopts an optimized step-by-step feeding and mixing process: In the first stage, all cementitious materials, fly ash, approximately 70% of the total water, and some fine aggregate are added to the mixing host and mixed at medium speed for about 30 seconds to fully wet the cementitious materials and begin initial hydration. At this time, the alkalinity of the slurry increases and its fluidity is excellent. In the second stage, the remaining coarse and fine aggregates and remaining mixing water are added, and high-speed mixing is switched to the second stage.

[0055] Approximately 15 seconds after the second stage of mixing begins (the exact timing can be optimized experimentally), the process control unit determines the optimal CO2 injection window. It simultaneously sends precise commands to the mixing control system and the CO2 injection valve assembly. The mixer maintains a high-speed mixing state, such as 25-30 rpm, while the valve assembly opens. CO2 gas is injected into the violently churning concrete flow through nozzles at a pre-set constant mass flow rate of 0.5 kg / s. The powerful fluid shear force immediately tears and pulverizes the CO2 gas flow, dispersing it as tiny bubbles throughout the mixture within the mixing tank.

[0056] The carbon metering and data acquisition module monitors and accumulates the CO2 flow meter readings throughout the process. Assuming this batch of concrete production is 30 cubic meters, the entire injection process lasts 90 seconds, and the cumulative CO2 consumption is 45 kg. After mixing, the carbon metering and data acquisition module calls its built-in carbon sequestration metering model. The model input parameters include: cement dosage 300 kg / m³, fly ash dosage, and CO2 consumption 45 kg. It uses a comprehensive reaction efficiency coefficient of 0.85-0.90, calibrated based on extensive experiments, considering partial physical dissolution of CO2 and trace escape. The model calculates that the net CO2 sequestration for this batch is approximately 40 kg, which, in CO2 equivalent terms, translates to approximately 1.33 kg of CO2 sequestrated per cubic meter of concrete.

[0057] The process enters the data storage stage. The blockchain carbon footprint traceability module operates automatically. It structures and encapsulates key information about this batch of production into a data packet, including: a unique production batch number (formula code C35-FA25), production start and end timestamps, total amount of cementitious materials used, and a calculated net CO2 sequestration of 40 kg CO2. The module uses the SHA-256 encryption algorithm to generate a unique digital fingerprint hash value for this data packet. Subsequently, through a secure API gateway, this hash value, along with necessary publicly queryable plaintext information, is uploaded to a pre-connected construction industry carbon emission traceability consortium blockchain network. Multiple consensus nodes in the consortium blockchain, potentially including industry associations, testing institutions, and large developer nodes, verify this data storage transaction. After successful verification, the transaction is packaged into a new block and appended to the chain. The blockchain network returns a unique global identifier for this transaction: the transaction hash TxID.

[0058] Finally, the system automatically converts the TxID into a QR code image and associates it with the electronic delivery note and quality certificate for that batch of concrete for printing. When the concrete arrives at the construction site, supervisors or green building certification inspectors can simply scan the QR code on the delivery note with their mobile phones to be directly redirected to the public browser page of the consortium blockchain, clearly seeing the undeniable and tamper-proof carbon record of the batch of concrete: production information, carbon sequestration amount, and certificate storage time, etc. The manufacturer can also use this on-chain record to apply for certification from national or local carbon emission registration agencies, converting it into tradable carbon emission reduction credits (CCERs) or similar products.

[0059] This invention provides a highly efficient carbon-negative concrete manufacturing technology and constructs a complete infrastructure to support the digitization and assetization of its environmental value, which is expected to profoundly transform the low-carbon development model of the building materials industry.

[0060] Example 3

[0061] In an exemplary embodiment of this disclosure, an electronic device capable of implementing the above-described method is also provided.

[0062] Those skilled in the art will understand that various aspects of the present invention can be implemented as systems, methods, or program products. Therefore, various aspects of the present invention can be specifically implemented in the following forms: entirely in hardware, entirely in software (including firmware, microcode, etc.), or in a combination of hardware and software, collectively referred to herein as “circuit,” “module,” or “system.”

[0063] The following reference Figure 3 To describe an electronic device 300 according to this embodiment of the present invention. Figure 3The electronic device 300 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of the present invention.

[0064] like Figure 3 As shown, the electronic device 300 is manifested in the form of a general-purpose computing device. The components of the electronic device 300 may include, but are not limited to: at least one processing unit 310, at least one storage unit 320, and a bus 330 connecting different system components (including storage unit 320 and processing unit 310).

[0065] The storage unit stores program code that can be executed by the processing unit 310, causing the processing unit 310 to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of the present invention. For example, the processing unit 310 can perform actions such as... Figure 2 As shown in the diagram, S1. During the concrete mixing process, CO2 is quantitatively introduced into the mixture to induce an in-situ mineralization reaction; S2. The amount of CO2 consumed in this batch is measured, and the net CO2 sequestration of this batch of concrete is calculated; S3. The batch production data containing the net CO2 sequestration is uploaded to a blockchain network for notarization to obtain a carbon footprint traceability certificate; S4. The carbon footprint traceability certificate is associated with the product information of this batch of concrete.

[0066] Storage unit 320 may include readable media in the form of volatile storage units, such as random access memory (RAM) 3201 and / or cache memory 3202, and may further include read-only memory (ROM) 3203.

[0067] Storage unit 320 may also include a program / utility 3204 having a set (at least one) program module 3205, such program module 3205 including but not limited to: operating system, one or more application programs, other program modules and program data, each or some combination of these examples may include an implementation of a network environment.

[0068] Bus 330 can represent one or more of several bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the various bus structures.

[0069] Electronic device 300 can also communicate with one or more external devices 200 (e.g., keyboard, pointing device, Bluetooth device, etc.), and with one or more devices that enable a user to interact with electronic device 300, and / or with any device that enables electronic device 300 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed via input / output (I / O) interface 350. Furthermore, electronic device 300 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 360. As shown, network adapter 360 communicates with other modules of electronic device 300 via bus 330. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with electronic device 300, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0070] From the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this disclosure can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, terminal device, or network device, etc.) to execute the methods according to the embodiments of this disclosure.

[0071] In exemplary embodiments of this disclosure, a computer-readable storage medium is also provided, on which a program product capable of implementing the methods described above is stored. In some possible embodiments, various aspects of the invention may also be implemented as a program product comprising program code that, when the program product is run on a terminal device, causes the terminal device to perform the steps of the various exemplary embodiments of the invention described in the "Exemplary Methods" section of this specification.

[0072] refer to Figure 4 As shown, a program product 400 for implementing the above-described method according to an embodiment of the present invention is described. This product may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited thereto. In this document, the readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0073] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: electrical connections having one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0074] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of sending, propagating, or transmitting programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0075] The program code contained on the readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0076] Program code for performing the operations of this invention can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Java and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0077] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0078] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A CO2 in-situ mineralization and blockchain traceability system in a concrete mixing system, characterized in that, include: The CO2 in-situ mineralization injection module is used to quantitatively introduce CO2 into the mixture during the concrete mixing process. The carbon metering and data acquisition module is used to measure the amount of CO2 introduced by the CO2 in-situ mineralization injection module and calculate the net CO2 sequestration of this batch of concrete based on this. The blockchain carbon footprint traceability module is used to upload batch production data, including the net CO2 sequestration, to the blockchain network for storage and to generate an immutable digital carbon footprint certificate.

2. The system according to claim 1, characterized in that, The CO2 in-situ mineralization injection module is integrated with the concrete mixing host and includes a CO2 supply unit and an injection terminal. The injection terminal is located inside the mixing host or in the feed inlet area and is used to inject gaseous CO2 or a solution containing dissolved CO2 into the mixture inside the mixing host.

3. The system according to claim 2, characterized in that, The CO2 in-situ mineralization injection module also includes a metering and control unit for precisely controlling the CO2 supply flow rate.

4. The system according to claim 1, characterized in that, It also includes a process coordination control unit, which is communicatively connected to the control system of the CO2 in-situ mineralization injection module and the concrete mixing host, and is used to coordinately control the start-up timing, injection parameters and mixing parameters of the mixing host according to the preset mixing process program.

5. The system according to claim 4, characterized in that, The preset mixing process is a step-by-step feeding and mixing process; the process coordination control unit is configured to trigger the CO2 in-situ mineralization injection module to start when the cementitious material is initially hydrated and the fluidity of the mixture slurry meets the preset conditions in the step-by-step feeding and mixing process.

6. The system according to any one of claims 1 to 5, characterized in that, The carbon metering and data acquisition module has a built-in or connected carbon sequestration metering model; the model uses the amount of CO2 consumed and the cementitious material composition of the batch of concrete as input to calculate the net amount of CO2 sequestration.

7. A method for CO2 in-situ mineralization and blockchain traceability using the system described in any one of claims 1 to 6, characterized in that, Includes the following steps: S1. During the concrete mixing process, CO2 is quantitatively introduced into the mixture to induce an in-situ mineralization reaction. S2. Measure the amount of CO2 consumed in this batch and calculate the net CO2 sequestration of this batch of concrete; S3. Upload the batch production data containing the net CO2 sequestration to the blockchain network for evidence storage and obtain a carbon footprint traceability certificate; S4. Associate the carbon footprint traceability certificate with the product information of the batch of concrete.

8. The method according to claim 7, characterized in that, The step of quantitatively introducing CO2 into the mixture is as follows: in the stepwise feeding and mixing process, when the cementitious material is initially hydrated and the mixture slurry reaches the predetermined fluidity, CO2 is injected into the mixing host.

9. The method according to claim 7, characterized in that, The carbon footprint traceability certificate is a blockchain transaction hash, which is converted into a QR code or digital label and attached to the factory invoice or product of that batch of concrete.

Images