Abstract: Aiming at the status that the effective support of green manufacturing theory and cleaner production technology were lacked in process design stage,the optimization and decision-making model of conceptual design of cleaner production was established.The concept of clean characteristic was put forward to aggregate and describe the environmental information in conceptual design stage of production process.The expression model of environmental information based on the clean characteristic was proposed.Through mapping function,the environmental information could be identified,selected,extracted and aggregated,and the expression model of clean characteristic was set up,which was taken as the basic unit of cleaner production's comprehensive evaluation system to select,reform and improve the production process design according to the evaluation results.An example of granite plate production process was used to verify the feasibility of the extraction,evaluation and feedback process of cleaner production.

Key words: conceptual design, life cycle assessment, cleaner production, clean characteristic, comprehensive evaluation

摘要： 针对生产工艺方案设计阶段缺少有效的绿色制造理论和清洁生产技术支持的现状,建立了清洁生产方案设计优化决策模型。提出洁净特征的概念,对生产工艺设计阶段的各种环境信息进行聚合和描述,并提出基于洁净特征的生产工艺方案设计的环境信息表达模型。通过映射函数对环境信息进行识别、筛选、提取和聚合,建立了洁净特征表达模型,并将其作为清洁生产综合评价体系的基本单元,根据评价结果对生产工艺设计方案进行有针对性的选择、改造和完善。以花岗石定型板材的生产过程为例,验证了洁净特征的提取、评价和反馈的可行性。

关键词: 工艺方案, 全生命周期评价, 清洁生产, 洁净特征, 综合评价