a36505a1-9499-4566-b356-4cc7d93203b2 cement production;cement, portland cement, 42.5MPa;shaft kiln 水泥生产;水泥, 硅酸盐水泥, 42.5MPa;立窑 Unit processes Materials production Other mineralic materials Typical cement production process. 典型水泥生产工艺。原料组分包括石灰石、石膏、粘土和铁粉等。能源消耗包括各生产工序的电耗和煤耗，污染物则包括颗粒物、SO2、NOx和CO2等。 10 2004 The described cement production process is used for manufacturing Portland cement with a strength grade of 42.5MPa. This type of cement is widely used in construction for structures requiring high mechanical strength, road pavements, and commercial concrete applications. The shaft kiln method specified in the process is employed to produce cement in areas where the scale of production or technological considerations dictate its use over other types of kilns. 所述的水泥生产工艺用于生产42.5MPa硅酸盐水泥。该类型的水泥在需要高机械强度的建筑结构、道路铺面和商用混凝土应用领域广泛使用。工艺中指定的立窑方法，适用于因生产规模或技术考量需要使用立窑而非其他类型窑炉的情况。 The study used 1kg of 42.5 grade Portland cement as the functional unit for evaluation. The scope of evaluation is defined as the in-plant production process of cement products and its surrounding environment. Among them, the in-plant production process refers to the entire production process in which raw materials undergo pretreatment, raw meal grinding, calcination, clinker mill and cement homogenization in sequence and finally become cement products. The surrounding environment of the cement production process refers to the input of external resources and energy and the emission of pollutants. 研究以1kg42.5等级硅酸盐水泥作为评价的功能单位。评价范围界定为水泥产品的厂内生产过程及其周边环境。其中，厂内生产过程是指原料依次经过预处理、生料粉磨、煅烧、熟料磨和水泥均化等工序最终成为水泥产品的生产全过程。水泥生产过程的周边环境是指外部资源和能源的投人和污染物的排放等。 Unit process, black box None 无 None 无 None 无 None 无 None 无 朱天乐, 何炜, 曾小岚, 黄新, & 马保国. (2006). 中国水泥生产环境负荷研究. 环境科学, 10, 2135–2138. 朱天乐, 何炜, 曾小岚, 黄新, & 马保国. (2006). 中国水泥生产环境负荷研究. 环境科学, 10, 2135–2138. When utilizing this LCA dataset for Portland cement production, it is critical to ensure that the system boundary includes the entire in-plant production process from raw material pretreatment to the homogenization of cement, as well as the input of external resources and release of emissions. It is important to consider the specific emissions profiles of the shaft kiln process, particularly the consumption of electricity and coal, and the generation of particulate matter, SO2, NOx, and CO2. The functional unit for this dataset is 1kg of 42.5 grade Portland cement, and this detail must be considered when scaling the data for use in broader models or assessments. Any considerations for the end-of-life phase, including recycling or waste treatment, must be added to the existing data set according to the specific context of the evaluation. 在使用本生命周期评估数据集进行硅酸盐水泥生产分析时，至关重要的是确保系统边界包括从原料预处理到水泥均化的整个厂内生产过程，以及外部资源输入和排放的释放。考虑立窑工艺特有的排放特征尤为重要，尤其是电耗和煤耗以及颗粒物、SO2、NOx和CO2的生成。此数据集的功能单位为1kg 42.5等级硅酸盐水泥，使用该数据扩大模型或评估时，必须考虑此细节。对于评估的特定背景，任何关于产品末端生命周期阶段的考虑，包括回收或废物处理，必须根据具体情况添加到现有数据集中。 Inventory: The internal review was done by several iteration steps concerning raw data validation, raw data documentation, representativity, completeness and consistency of modelling with regard to ISO 14040 and 14044. 清单： 内部审查通过几个迭代步骤完成，涉及原始数据验证、原始数据记录、代表性、完整性、与 ISO 14040 和 14044 有关的建模的一致性。 Tiangong LCI Data Working Group 天工LCI数据工作小组 #REF!, ysqsophia@gmail.com ysqsophia@gmail.com ysqsophia@gmail.com 2024-03-19T21:18:09+08:00 2024-04-20T14:40:33.958658+08:00 00.01.005 https://lcadata.tiangong.world/showProcess.xhtml?uuid=a36505a1-9499-4566-b356-4cc7d93203b2&version=01.00.000&stock=TianGong Tiangong LCI Data Working Group 天工LCI数据工作小组 false Free of charge for all users and uses limestone, crushed, for mill Input 1125.9 1125.9 Limestone 石灰石 clay Input 166.5 166.5 Clay 粘土 gypsum stone (CaSO4-dihydrate) Input 56.8 56.8 Gupsum 石膏 iron, powder Input 61.3 61.3 Iron powder 铁粉 hard coal Input 210.201 210.201 Standard coal. The original data is 0.1953kg standard coal, here converted to hard coal, the conversion formula is 1kg hard coal = 0.929kg standard coal. 标准煤。原始数据为0.1953kg标准煤，这里换算为硬煤，换算公式为1kg硬煤=0.929kg标准煤。 Electricity Input 298.8 298.8 Electricity 电力 particles (> PM10) Output 0.325 0.325 Particulates, with an unspecified particle size, is treated as PM > 10 micrometers in diameter. 颗粒物，未标明粒径，按PM>10处理。 sulfur dioxide Output 0.3993 0.3993 SO2 SO2 Nitrogen oxides Output 2.4 2.4 NOx NOx carbon dioxide (fossil) Output 1070.3 1070.3 CO2 CO2 cement, portland cement, 42.5MPa Output 1000.0 1000.0 1kg42.5 MPa Portland cement 1kg42.5等级硅酸盐水泥