CN-121981384-A - Carbon emission metering method and device for cement industry

CN121981384ACN 121981384 ACN121981384 ACN 121981384ACN-121981384-A

Abstract

The invention relates to a carbon emission metering method and a device in the cement industry, belonging to the technical field of carbon emission management, wherein the carbon emission metering method in the cement industry comprises the steps of constructing an emission data set based on process state data and emission data of a plurality of process steps at a plurality of sampling moments; the method comprises the steps of carrying out pretreatment on a target production scene, carrying out fitting on a preprocessed emission data set based on an SVR model to determine reference emission data corresponding to a plurality of process steps, determining uncertainty of the reference emission data corresponding to the plurality of process steps based on uncertainty of the emission data set and uncertainty of the SVR model, and determining uncertainty of a carbon emission metering result of the target production scene and uncertainty of a carbon emission metering result of the target production scene based on the process steps contained in the target production scene, the reference emission data corresponding to the plurality of process steps and the uncertainty of the reference emission data corresponding to the plurality of process steps. The invention effectively improves the flexibility and accuracy of carbon emission metering in the cement industry.

Inventors

DENG XIKUN
HU HONGBO
YANG GUANGXING
WANG XINGPENG
YE MENG
YANG GUANG
MENG LINGDONG

Assignees

湖北省计量测试技术研究院
华新建材集团股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260116

Claims (10)

1. A method for metering carbon emissions in the cement industry, comprising: acquiring process state data and emission data of a plurality of process steps at a plurality of sampling moments, and constructing an emission data set based on the process state data and the emission data of the plurality of process steps at the plurality of sampling moments; Fitting the preprocessed emission data set based on the SVR model, and determining reference emission data corresponding to a plurality of process steps; determining uncertainty of reference emission data corresponding to the plurality of process steps based on the uncertainty of the emission data set and the uncertainty of the SVR model; and determining the uncertainty corresponding to the carbon emission metering result of the target production scene and the carbon emission metering result of the target production scene based on the uncertainty of the process steps contained in the target production scene, the reference emission data corresponding to the process steps and the reference emission data corresponding to the process steps.
2. The method of carbon emission metering in the cement industry of claim 1, wherein the pretreatment of the emission data set comprises: And performing hysteresis compensation on the emission data set based on a time sliding window algorithm, and eliminating abnormal data in the emission data set.
3. The method for metering carbon emissions in the cement industry according to claim 1, wherein the fitting the preprocessed emission data set based on the SVR model to determine the reference emission data corresponding to the plurality of process steps comprises: And carrying out quantile regression or envelope analysis on the preprocessed emission data set based on the SVR model, and determining reference emission data corresponding to a plurality of process steps.
4. The method of claim 1, wherein determining uncertainty of reference emission data corresponding to a plurality of process steps based on uncertainty of emission data set and uncertainty of SVR model comprises: and determining the uncertainty of the reference emission data corresponding to the plurality of process steps based on the uncertainty of the emission data set, the sensitivity coefficient of the SVR model to the emission data set and the residual standard deviation of the SVR model.
5. The method according to claim 1, wherein determining the uncertainty of the carbon emission measurement result of the target production scene and the carbon emission measurement result of the target production scene based on the uncertainty of the process steps included in the target production scene, the reference emission data corresponding to the plurality of process steps, and the reference emission data corresponding to the plurality of process steps, comprises: and determining the sum of the reference emission data corresponding to the process steps contained in the target production scene as a carbon emission measurement result of the target production scene, and determining the variance superposition result of the uncertainty of the reference emission data corresponding to the process steps contained in the target production scene as the uncertainty corresponding to the carbon emission measurement result of the target production scene.
6. The method of carbon emissions metering in the cement industry of claim 1, further comprising: Determining a carbon emission threshold of the target production scene based on the carbon emission measurement result of the target production scene and the uncertainty corresponding to the carbon emission measurement result of the target production scene; and determining that the target production scene has a carbon emission overflow problem under the condition that the actual carbon emission amount of the target production scene is larger than the carbon emission threshold value.
7. The method of carbon emissions metering in the cement industry of claim 6, further comprising: Under the condition that the problem of carbon emission overflow exists in the target production scene is determined, determining a carbon emission threshold value corresponding to the process step contained in the target production scene based on the reference emission data corresponding to the process step contained in the target production scene and the uncertainty of the reference emission data corresponding to the process step contained in the target production scene; And determining the process steps, which are larger than the carbon emission threshold corresponding to the process steps contained in the target production scene, in the actual carbon emission values corresponding to the process steps contained in the target production scene as the process steps to be improved.
8. A carbon emission metering device for the cement industry, comprising: The acquisition module is used for acquiring process state data and emission data of a plurality of process steps at a plurality of sampling moments and constructing an emission data set based on the process state data and the emission data of the plurality of process steps at the plurality of sampling moments; The fitting module is used for fitting the preprocessed emission data set based on the SVR model and determining reference emission data corresponding to a plurality of process steps; A first determining module, configured to determine uncertainty of reference emission data corresponding to a plurality of process steps based on uncertainty of emission data set and uncertainty of SVR model; And the second determining module is used for determining the uncertainty corresponding to the carbon emission metering result of the target production scene and the carbon emission metering result of the target production scene based on the uncertainty of the process steps contained in the target production scene, the reference emission data corresponding to the process steps and the reference emission data corresponding to the process steps.
9. A metering device comprising a memory and a processor, wherein, The memory is used for storing programs; The processor, coupled to the memory, for executing the program stored in the memory to implement the steps in the carbon emission metering method of the cement industry of any one of the above claims 1 to 7.
10. A computer readable storage medium storing a computer readable program or instructions which when executed by a processor is capable of carrying out the steps of the carbon emission metering method of the cement industry of any one of the preceding claims 1 to 7.

Description

Carbon emission metering method and device for cement industry Technical Field The invention relates to the technical field of carbon emission management, in particular to a carbon emission metering method and device in the cement industry. Background Currently, carbon emission accounting in the cement industry is mainly performed according to industry standards, and a macroscopic statistical method or a material balance algorithm is mostly adopted. The existing carbon emission metering method in the cement industry has the defects of coarse granularity and strong hysteresis, often accounting by taking month or year as a unit, being incapable of reflecting fluctuation in the production process in real time, and completing production and being incapable of performing real-time intervention when the emission exceeds the standard. The existing accounting can only inform enterprises of 'how much to rank', and cannot accurately indicate 'which links, which equipment and what technological parameters' cause high emission, so that specific optimization is difficult to guide. The simulation capability is lost, the newly built factory or process transformation lacks data model support, experience is often relied on, and the actual carbon emission level is difficult to estimate before construction. The method has the advantages that the data dependence is high, the region suitability is poor, the actual production data (such as actual output, raw material consumption and other private data) of enterprises are required to be comprehensively mastered in accounting, the collection difficulty is high, the time is long, the method is difficult to be applied to all enterprises in the region in a scale, the influence of external factors such as environmental protection policies and seasonal changes on the production time is not considered, and the applicability of the model in different regions and different time periods is limited. Therefore, how to improve the flexibility and accuracy of carbon emission metering in the cement industry becomes a technical problem to be solved. Disclosure of Invention In view of the foregoing, it is necessary to provide a method and a device for measuring carbon emissions in the cement industry, which are used for solving the problems of insufficient flexibility and accuracy of the existing carbon emission measuring scheme in the cement industry. In order to solve the above problems, in a first aspect, the present invention provides a carbon emission metering method in the cement industry, comprising: acquiring process state data and emission data of a plurality of process steps at a plurality of sampling moments, and constructing an emission data set based on the process state data and the emission data of the plurality of process steps at the plurality of sampling moments; Fitting the preprocessed emission data set based on the SVR model, and determining reference emission data corresponding to a plurality of process steps; determining uncertainty of reference emission data corresponding to the plurality of process steps based on the uncertainty of the emission data set and the uncertainty of the SVR model; and determining the uncertainty corresponding to the carbon emission metering result of the target production scene and the carbon emission metering result of the target production scene based on the uncertainty of the process steps contained in the target production scene, the reference emission data corresponding to the process steps and the reference emission data corresponding to the process steps. In one possible implementation, the preprocessing of the emission data set includes: And performing hysteresis compensation on the emission data set based on a time sliding window algorithm, and eliminating abnormal data in the emission data set. In one possible implementation manner, the fitting the preprocessed emission data set based on the SVR model, to determine the reference emission data corresponding to the plurality of process steps includes: And carrying out quantile regression or envelope analysis on the preprocessed emission data set based on the SVR model, and determining reference emission data corresponding to a plurality of process steps. In one possible implementation manner, the determining the uncertainty of the reference emission data corresponding to the plurality of process steps based on the uncertainty of the emission data set and the uncertainty of the SVR model includes: and determining the uncertainty of the reference emission data corresponding to the plurality of process steps based on the uncertainty of the emission data set, the sensitivity coefficient of the SVR model to the emission data set and the residual standard deviation of the SVR model. In one possible implementation manner, the determining the uncertainty of the carbon emission measurement result of the target production scene and the uncertainty of the carbon emission measurement result of the t