CN-122021992-A - Cement process optimization method and equipment for multi-production-industry symbiotic zero-carbon park

CN122021992ACN 122021992 ACN122021992 ACN 122021992ACN-122021992-A

Abstract

The application provides a cement process optimization method and equipment for a multi-production symbiotic zero-carbon park, and relates to the technical fields of cement industry, system optimization and zero-carbon park planning, wherein the method comprises the steps of constructing a multi-station technical information database which covers the whole cement production process and covers the traditional process, the emerging and green low-carbon technologies; on the basis, a cement process operation system with cross-industry resource cooperation is constructed, a process main flow module, a cross-industry cooperation interface module, a resource adaptation module and a technology optimization model module are integrated, raw fuel, mixed materials, waste heat and carbon resources from the industries of steel, electric power, chemical industry and the like are introduced, a plurality of types of cooperation process units are in butt joint, process adaptability configuration is realized, the technology optimization model module aims at energy conservation, carbon reduction, pollution reduction and cost control under the constraint of a process and the like, and optimization of a process technology and system configuration is realized. The application effectively controls the energy consumption, carbon emission and pollutant emission of the cement industry in the scene of the zero-carbon park.

Inventors

WEI YIMING
LV YANG
ZHANG HONGLIANG
YU BIYING
ZHANG CHENGYAO
TANG BAOJUN
LV HEWU
FU JIAHAO
WU YUN
ZHAO ZIHAO
HAN TE

Assignees

北京理工大学
山东国舜建设集团有限公司

Dates

Publication Date: 20260512
Application Date: 20251216

Claims (9)

1. The cement process optimization method for the multi-industry symbiotic zero-carbon park is characterized by comprising the following steps of: collecting various production technical data related to cement production procedures, and constructing a multi-working-procedure technical information database; On the basis of the multi-industry technology information database, the cooperative utilization of byproducts, energy and carbon sources in the whole cement production process is considered, the performance adaptation and configuration optimization of various production technologies in a cement process system are considered, and a cement process integrated operation and control platform facing the cross-industry resource cooperation is formed, wherein the platform comprises a process main flow module, a cross-industry cooperation interface module, a resource adaptation module and a technology optimization module, The process main flow module is used for carrying out systematic division on the cement production flow and determining a plurality of key procedure links; The cross-industry collaborative interface module is used for identifying, accessing and standardizing cross-industry byproduct material flows, energy flows and carbon resources; The resource adaptation module is used for carrying out process adaptation configuration and process coupling on the accessed cross-industry resources and key processes in the cement production system, and matching corresponding adaptation devices or carrying out systematic process transformation by combining the heat value, chemical components, physical form and pollution control requirements of the resources; The technology optimization module is used for integrating a process flow module, a cross-industry collaborative interface module and a resource adaptation module, constructing a technology optimization model, and carrying out optimization and system integration configuration of a feasible technical scheme aiming at meeting cost requirements, productivity requirements and green low-carbon requirements.
2. The method of optimizing a cement process for a multi-industry co-production zero-carbon park of claim 1, wherein the multi-industry technical information database includes, but is not limited to, process parameters, equipment configuration, energy consumption levels, carbon emissions, pollutant emission characteristics, and occupancy and application maturity information for each technology within the industry.
3. The method for optimizing cement process for a multi-industry symbiotic zero-carbon park of claim 1 wherein the cross industry is an industry related to cement production, including but not limited to steel, chemical, nonferrous metals, coal electricity and municipal solid waste, the consideration of co-utilization of by-products, energy and carbon sources in the whole cement production process comprises: by using byproduct resources of cross industries to replace raw materials and fuels used in the cement production process, the raw materials and fuels are replaced and utilized cooperatively; recovering heat energy generated during cement production or cross-industry production, and configuring heat energy exchange and conversion equipment to realize energy flow coupling, assist power generation or heat supply, and realize waste heat recovery and utilization; CO 2 generated during cement production or cross-industry generation is guided into a carbon resource recycling and reusing chain in a cement system by deploying a carbon complement and reuse device, so that closed-loop management of carbon flow is realized.
4. The method for optimizing the cement process for the multi-industry symbiotic zero-carbon park of claim 1 wherein the cement production process comprises raw material preparation, raw material homogenization, clinker calcination, clinker cooling, cement grinding and terminal emission control, The cement production process includes the material crushing device in the material preparing stage, the grinding equipment in the material homogenizing stage, the cooperative combustion system in the clinker calcining stage, the cooling and heat energy recovering device in the clinker cooling stage, the combined grinding and sorting system in the cement grinding stage, and the pollutant treating and carbon reducing system in the terminal emission controlling stage.
5. The cement process optimization method for the multi-industry symbiotic zero-carbon park of claim 4 wherein the resource adaptation module is specifically configured to: in the raw material preparation and raw material homogenization stage, a physical pretreatment device, a chemical stabilization device and an automatic metering blending system of industrial byproducts are arranged to realize the stabilization and quality control of raw material components; In the clinker calcination link, a combustible solid waste cooperative combustion system is configured, and the system comprises a multi-channel combustor facing high-heat-value solid waste and biomass fuel, a fuel pretreatment system and a heat value recognition device, and a front end interface of a carbon capture system and a decomposing furnace adapting device suitable for cooperative fuel are arranged, so that the controllable heat supply and emission controllability of the cooperative fuel is ensured; In the clinker cooling and waste heat recovery stage, a waste heat boiler, a heat exchanger group and a low-temperature waste heat power generation system are configured, so that the energy recycling of high-temperature waste energy is realized; in the cement grinding link, arranging a high-blending-ratio adjustable feeding system, a combined grinding device and an intelligent powder selecting system, wherein the high-blending-ratio adjustable feeding system, the combined grinding device and the intelligent powder selecting system are used for adapting to the collaborative grinding of exogenous mixed materials, and the exogenous materials comprise desulfurized gypsum and slag powder; In the terminal emission control link, denitration, desulfurization, dust removal and carbon capture technical components are integrated, including but not limited to a carbon absorption tower, a compression purification unit and a storage and transportation interface, so as to support pollutant emission reduction and carbon resource recycling.
6. The multi-industry symbiotic zero-carbon park oriented cement process optimization method of claim 1 wherein the optimization objective of the technical optimization model is minimization of total process cost, energy consumption, carbon emissions and pollutant emissions, and the constraint conditions of the technical optimization model include cement yield constraints, cement production energy supply constraints, cement production intermediate material supply constraints, cement production elimination equipment constraints, cement production technology configuration proportion and resource constraints, cross-industry resource availability constraints and substitution proportion constraints.
7. The method for optimizing a cement process for a multi-industry symbiotic zero-carbon park of claim 6 wherein the optimization objective is: Wherein, the Is the first The total cost of the time period, 、 Respectively refers to the type of the equipment and the fuel variety, Representation device In the first place The investment cost is equal to the period of the period, Representation device In the first place The number of new-up periods of time, Represent the first Time period per unit equipment The cost of operation and maintenance is high, Representing energy sources In the first place The price of the time period is set to be equal to the price of the time period, Representing energy sources In the first place The amount of consumption in the period of time, Represent the first Total energy consumption of the cement industry in the period, Represent the first The period is to collect the energy tax of unit energy consumption, Represent the first Period cement industry No The total emissions of seed gas or contaminants, Represent the first Time period for unit gas or pollutant The tax to be imposed is discharged, Representation device In the first place The number of runs of a period, expressed as: Represent the first The number of runs of all the plants for the production of the same product or intermediate product, Representation device In the first place Popularity of time period.
8. The method for optimizing cement process for a productive symbiotic zero-carbon park of claim 6 wherein the cement yield constraint is that the cement supply at any period is greater than or equal to the social demand of the cement at that period, expressed as: Wherein, the Represent the first Time period, unit equipment Is used for the production of the product, As a matter of the kind of the device, For the period of time it is time period, Representation device In the first place The number of runs of the time period, Represent the first Time period equipment Due to the improvement of the yield efficiency caused by the technical improvement, Represent the first The demand for cement in the period; the cement production energy supply constraint is that the energy consumption for producing cement at any period does not exceed the maximum supply amount and is equal to or more than the minimum demand amount, expressed as: Wherein, the Representing energy sources In the first place The amount of consumption in the period of time, 、 Is the minimum demand and the maximum supply; the supply constraint of the intermediate materials in cement production is that the input amount of the intermediate materials used in the subsequent process is not more than the output amount of the intermediate materials corresponding to the upstream process, and the supply constraint is expressed as follows: Wherein, the Is a device Is provided with a plurality of upstream devices, Represent the first Time period equipment A raw material input reduction ratio due to technical improvement; The cement production elimination equipment is constrained to be smaller than the stock of the equipment in the previous period, and the constraint is expressed as follows: Wherein, the Representation device In the first place The inventory of the time period is made up of, Representation device Is used for the life of the car, Representation device In the first place The number of new-up periods of time, Representation device In the first place The elimination amount of the period; The cement production technology configuration proportion and resource constraint comprise technology configuration proportion constraint and resource constraint, wherein the technology configuration proportion constraint is technical configuration proportion of equipment, the proportion is between 0 and 1, when the technology configuration proportion is set, for technologies with energy efficiency higher than a set threshold value or emission lower than the set threshold value, the future market permeability is set to be not less than a reference period corresponding value, for technologies with energy efficiency lower than the set threshold value or emission higher than the set threshold value, the future market permeability is set to be not greater than the reference period corresponding value, the resource constraint is actual usage of equipment in any period, the equipment configuration proportion is not less than theoretical quantity for providing social services, and the equipment stock in the period is not greater than the period, and the cement production technology configuration proportion and the resource constraint are expressed as: Wherein, the Representation device In the first place The minimum required amount of time period is set, 、 Representation device In the first place The minimum popularity and the maximum popularity of the period, Representation device In the first place The popularity of the time period is that, Represent the first Time period equipment Energy is supplied to the energy source due to the improvement of energy efficiency Is used for the saving rate of the (a), Representing a unit device For the first The rate of emission of the seed gas or the contaminant, Representing energy sources In the device Is used for the combustion rate of the fuel, Represent the first For periods of time, for devices with energy efficiency above a set threshold or emissions below a set threshold The minimum popularization rate of the method is that, Represent the first For periods of time, for devices with energy efficiency below a set threshold or emissions above a set threshold The maximum popularization rate of the utility model is that, Representation device The popularization rate in the reference period, Representation device In the first place The average period of the period is the cost, Representing energy sources In the first place The price of the time period is set to be equal to the price of the time period, Representing energy sources In the first place The amount of consumption in the period of time, Represent the first Total energy consumption of the cement industry in the period, Represent the first Time period power to the first The emission coefficient of the seed gas or the pollutant, Represent the first The period is the energy tax imposed on the consumption of unit energy, Represent the first Period cement industry No The total emissions of seed gas or contaminants, Represent the first Time period for unit gas or pollutant Discharging the tax collected; the cross-industry resource availability constraint is that the alternative resource should be less than or equal to the maximum availability or supply capacity under specific time, space, policy or industry collaboration conditions at any one time period, expressed as: Wherein, the Represent the first Period of time, actually used in cement production system The amount of usage of the co-resource outside the class, Represent the first Period of time, item I Maximum available provisioning capacity of class resources within a set area, time period; The substitution ratio constraint is that under the limits of process feasibility, product quality and equipment compatibility at any period, the technical upper limit of a certain type of substitution resource in cement production is smaller than or equal to the maximum allowable doping ratio or substitution ratio, and the technical upper limit is expressed as: Wherein, the Represent the first Period of time, actually used in cement production system The amount of usage of the co-resource outside the class, Represent the first The period corresponds to the usage amount of the alternative reference materials in the process flow, Represent the first The class resource is the maximum allowed substitution doping ratio in the flow.
9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the multi-industry symbiotic zero-carbon park oriented cement process optimization method of any of claims 1-8 when the computer program is executed.

Description

Cement process optimization method and equipment for multi-production-industry symbiotic zero-carbon park Technical Field The application relates to the technical fields of cement industry, system optimization and zero-carbon park planning, in particular to a cement process optimization method and equipment for a multi-production symbiotic zero-carbon park. Background The traditional industrial park generally has pain points with high energy consumption, carbon emission amplification and low resource utilization efficiency, and particularly in the construction of the zero-carbon park with multi-industry symbiosis, the existing low-carbon technology is difficult to construct a deep linkage low-carbon ecological system due to the lack of a cross-industry resource complementation and collaborative optimization mechanism, so that the deep linkage low-carbon ecological system becomes a key challenge for the large-scale development of the zero-carbon park. The cement industry is taken as the national economy basic industry, belongs to the high energy consumption process industry, has huge production scale and outstanding energy consumption and carbon emission intensity. The production process spans multiple links of raw material preparation, clinker calcination, cement grinding and the like, and the energy consumption and emission characteristic difference of each ring are obvious. In addition, in the scene of a zero-carbon park with multi-industry symbiosis, the comprehensive coordination of cement production and other industries in the park in the aspects of energy, substances, information and the like is not realized, and the unified evaluation and intelligent scheduling of the carbon emission, pollutant emission and resource utilization efficiency of the whole cement process cannot be performed, so that the green transformation of the cement industry is difficult to be deeply fused with the multi-industry collaborative carbon reduction target of the zero-carbon park. Therefore, there is a need to construct an adaptive cement process system optimization method aiming at a scene of a multi-industry symbiotic zero-carbon park, and the low-carbon ecological system construction of the park multi-industry collaborative carbon reduction and power-assisted zero-carbon park is promoted while carbon reduction and emission reduction of the cement industry are realized through optimization of a full-flow process technology and system configuration. Disclosure of Invention The present application aims to solve at least one of the technical problems in the related art to some extent. Therefore, the first aim of the application is to provide a cement process optimization method for a multi-industry symbiotic zero-carbon park, which solves the problems of high energy consumption, high carbon emission and high pollutant emission in the existing cement industry, and realizes the maximization of energy utilization efficiency and the improvement of environmental protection benefits. A second object of the application is to propose a computer device. In order to achieve the above object, an embodiment of the first aspect of the present application provides a cement process optimization method for a multi-industry symbiotic zero-carbon park, including: collecting various production technical data related to cement production procedures, and constructing a multi-working-procedure technical information database; On the basis of a technical information database, the cooperative utilization of byproducts, energy and carbon sources in the whole cement production process is considered, the performance adaptation and configuration optimization of various production technologies in a cement process system are considered, a cement process integrated operation and control platform oriented to the cooperation of cross-industry resources is formed, wherein the platform comprises a process main flow module, a cross-industry cooperation interface module, a resource adaptation module and a technology optimization module, The process main flow module is used for carrying out systematic division on the cement production flow and determining a plurality of key process links; the cross-industry collaborative interface module is used for identifying, accessing and standardizing cross-industry byproduct material flows, energy flows and carbon resources; The resource adaptation module is used for carrying out process adaptation configuration and process coupling on the accessed cross-industry resources and key processes in the cement production system, and matching corresponding adaptation devices or carrying out systematic process transformation by combining the heat value, chemical components, physical form and pollution control requirements of the resources; the technical optimization module is used for integrating the process flow module, the cross-industry collaborative interface module and the resource adaptation module, constructing a technical