72f576a5-9e18-47f9-b52d-8ae3693ea742 cement production;cement, portland fly-ash cement;new dry process precalciner kiln, 4000 t/d;fly ash 水泥生产;水泥, 粉煤灰硅酸盐水泥;新型干法预分解窑, 4000 t/d;粉煤灰 Unit processes Materials production Other mineralic materials The new dry pre-decomposition cement production model is selected. 选用了预分解窑干法水泥生产模型。 15 This article selects a pre-decomposition kiln-drying cement production model. The new dry pre-decomposition cement production technology is based on suspension preheating and pre-decomposition technology. It is a production technology that is more in line with environmental protection requirements and meets high productivity requirements, and has become the future development trend of China's cement industry. Therefore, the selection of new dry pre-decomposition cement production technology as cement model production technology has advanced and environmentally friendly requirements. 本文选用预分解窑干法水泥生产模型。新型干法预分解水泥生产技术以悬浮预热和预分解技术为核心，是一种比较符合环保要求、符合高生产率要求的生产技术，成为中国水泥行业未来的发展趋势。故选用新型干法预分解水泥生产技术作为水泥模型生产技术具有先进性和环保性需求。 The data set describes the cement production process using a new dry pre-decalciner kiln with a capacity of 4000 tons per day, suitable for the manufacturing of portland fly-ash cement. This technology is identified as a progressive and eco-friendly technique that aligns with the growth trajectory of China's cement industry. It utilizes suspension preheating and pre-decomposition to meet high productivity needs while being more environmentally responsible. The primary usage of the produced cement is large-scale construction and infrastructure development, where portland fly-ash cement offers the desired durability and strength. 该数据集描述了日产量为4000吨的新型干法预分解窑水泥生产过程，适用于硅酸盐水泥的制造。这项技术被认为是一种符合中国水泥行业发展趋势的先进环保技术。它采用悬浮预热和预分解技术以满足较高的生产率需求，同时具有更好的环保性能。所生产的水泥主要用于大规模建设和基础设施发展，硅酸盐水泥提供了所需的耐久性和强度。 W7xpbNceMouvc4x6CXkcyMPUnze.png The life cycle functional unit is selected as 1t of cement to construct the life cycle model.The cement industry system boundary includes the production of cement, the production and transportation of raw materials, and the production of electricity, but does not include the use and processing of cement.For auxiliary materials such as fly ash, only the transportation and preparation process will be considered, and the production process will not be considered. 选用生命周期功能单位为 1t 水泥来构建生命周期模型。水泥工业系统边界包括水泥的生产、原材料的生产与运输、电力的生产，不包括水泥的使用和处理。对于粉煤灰等辅助材料只考虑其交通运输和准备过程，不考虑其生产过程。 Unit process, black box None 无 None 无 None 无 Pollutant emission data from limestone and gypsum mining come from the China Life Cycle Reference Database (CLCD). Due to the lack of mining data for clay and iron ore and the small amount of mining, the pollutant emission data from limestone mining were used as estimates. The pollutant emission data from coal mining adopt the raw coal mining data from the China Life Cycle Reference Database (CLCD).The power production pollutant emission data uses the national average grid power mixing and transmission data from the China Life Cycle Reference Database (CLCD).The transportation stage considers the transportation of all raw materials required for cement production, including limestone, clay, iron powder, gypsum, coal and industrial waste. For the convenience of calculation, a diesel truck with a load of 10t on highway transportation is taken as an example. It is assumed that the average transportation of all raw materials The distance is 100km. The pollutant emission inventory data of diesel trucks with a load of 10 tons in the China Life Cycle Reference Data (CLCD) are used. 石灰石、石膏开采中污染物排放数据来自于中国生命周期参考数据库（CLCD）。由于缺乏粘土和铁矿石的开采数据，且其开采量较少，故采用石灰石的开采污染物排放数据作为估算。煤炭开采的污染物排放数据采用中国生命周期参考数据库（CLCD）中的原煤开采数据。电力生产污染物排放数据采用中国生命周期参考数据库（CLCD）中的全国平均电网电力混合与传输数据。运输阶段考虑水泥生产所需要所有原材料的运输，包括石灰石、粘上、铁粉、石膏、煤以及工业废弃物，为计算方便以载重10t的柴油货车高速公路运输为例，假定所有原材料的运输平均距离为100km。采用中国生命周期参考数据（CLCD）中载重10t的柴油货车污染物排放清单数据。 None 无 None 无 徐小宁. (2013). 中国水泥工业的生命周期评价 [硕士, 大连理工大学]. 徐小宁. (2013). 中国水泥工业的生命周期评价 [硕士, 大连理工大学]. Users of this data set should note that environmental impacts from the extraction of limestone and gypsum are sourced from the China Life Cycle Reference Database (CLCD). However, due to the lack of specific data for clay and iron ore extraction and considering their lesser quantities, limestone mining emission data are used as estimations. When using this LCA data, attention should be given to the system boundary which consists only of cement production, the extraction and transportation of raw materials, and the production of electricity. The use and end-of-life processing of cement is excluded. The transportation and preparation phases of auxiliary materials such as fly ash are included, but their production stages are omitted from the analysis. For industrial waste, only the transportation and preparation process are considered, with the environmental impacts caused by the production of these materials being allocated to the original producer. The functional unit for the life cycle model is set as 1 ton of cement. 使用此数据集的用户应注意，石灰石和石膏采矿的环境影响数据来源于中国生命周期参考数据库（CLCD）。但由于缺少特定的粘土和铁矿石开采数据，且它们的采矿量较小，因此使用石灰石开采排放数据作为估算。使用此生命周期评价(LCA)数据时，应注意系统边界仅包括水泥的生产、原材料的开采与运输、电力的生产。不包括水泥的使用和终生处理。辅助材料如粉煤灰的交通运输和准备阶段包括在内，但其生产阶段从分析中省略。对于工业废弃物，只考虑运输和准备过程，这些材料的生产造成的环境影响归原始生产者承担。生命周期模型的功能单位设置为1吨水泥。 Only the transport and preparation process of industrial waste is considered, and the environmental impact of the production of industrial waste is borne by the producer who generated it. 只考虑工业废弃物的运输和准备过程，生产工业废弃物的环境影响由产生该废弃物的生产者承担。 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 2024-04-19T19:59:18+08:00 2024-04-20T14:41:36.950559+08:00 00.01.005 https://lcadata.tiangong.world/showProcess.xhtml?uuid=72f576a5-9e18-47f9-b52d-8ae3693ea742&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 864.9 864.9 Limestone 石灰石 clay Input 155.51 155.51 Clay 粘土 iron, powder Input 28.21 28.21 Iron powder 铁粉 gypsum stone (CaSO4-dihydrate) Input 50.0 50.0 Gypsum. The standard values of GB-175-2007 General Portland Cement in China are used for each component of the cement. 石膏。各通用水泥组分使用中国GB-175-2007通用硅酸盐水泥标准值。 hard coal;  26.3 MJ/kg Input 74.1 74.1 Coal. The statistical values of Chinese production lines are used, and the standard coal consumption for large and medium-sized precalciner kilns is 114 kg/t clinker. The coal consumption can also be calculated based on the chemical composition of coal ash and the industrial analysis values of coal. 煤。采用中国生产线中统计值，大中型预分解窑的标煤耗为114kg/t熟料，同时根据煤灰的化学成分以及煤的工业分析值，可对煤的消耗量进行计算。 ash Input 300.0 300.0 Fly ash. Each general-purpose cement component uses China GB-175-2007 general-purpose silicate cement standard value. 粉煤灰。各通用水泥组分使用中国GB-175-2007通用硅酸盐水泥标准值。 Electricity Input 340.092 340.092 Electricity consumption. The average level of domestic electricity consumption in China is used. For dry-process cement production lines, the electricity consumption for milling operations accounts for more than 60% of the total electricity consumption, with raw material milling accounting for about 30% and cement milling accounting for about 40%. Due to limited data on raw material mining, a simplified treatment is adopted for various raw materials, and the electricity consumption data of 13.89 kWh/t raw materials are used. For different types of blended cement, the electricity consumption for milling different raw materials varies due to differences in their shapes and properties. The estimation is based on the percentage of electricity consumption for milling raw materials in the United States. 电耗。中国国内电力消耗平均水平。对于干法水泥生产线，粉磨作业消耗的电力占全部电力消耗的60%以上，其中生料粉磨约占30%，水泥粉磨约占40%。由于原料开采数据有限，对各种原料合并进行简化处理，采用电力消耗数据13.89kwh/t原料。对于不同品种的混合水泥，出于原材料形状、性质的差异，粉磨不同原料所消耗的电力不同，根据美国粉磨原料消耗电力百分比进行估计计算。 carbon dioxide (fossil) Output 642.0 642.0 CO2. The CO2 emissions during the cement production stage come from two parts: one is the decomposition of calcium carbonate and magnesium carbonate in the raw materials during the calcination process, and the other is the release of CO2 from coal combustion as fuel. The formulas for CO2 emissions from raw materials are: CaCO3→CaO+CO2; MgCO3→MgO+CO2. The emission factor for CO2 from coal combustion is based on the carbon emission coefficient from the Chinese Academy of Engineering, which is 2.4933 kg CO2 per kg of standard coal. CO2。水泥生产阶段二氧化碳排放来自两个部分，一部分为煅烧时原料中碳酸钙和碳酸镁的分解释放，另一部分为燃料煤燃烧释放。原料中排放二氧化碳公式： CaCO3→Cao+CO2；MgCO3→Mgo+CO2。煤燃烧的二氧化碳释放量采用中国工程院的碳排放系数，CO2排放系数为2.4933kgCO2/(kg标准煤)。 sulfur dioxide Output 0.365 0.365 SO2. The emission of SO2 is based on the results of the first national survey of pollution sources in the Chinese cement industry (SO2 0.066kg/t clinker). SO2。SO2排放量来自第一次中国水泥制造业污染源普查结果（SO20.066kg/t熟料）。 Nitrogen oxides Output 2.0 2.0 NOx. The emission of NOx is based on the results of the first national survey of pollution sources in the Chinese cement industry (NOx 1.584kg/t clinker). NOx。NOx排放量来自第一次中国水泥制造业污染源普查结果（NOx1.584kg/t熟料）。 particles (> PM10) Output 0.341 0.341 Dust, with an unspecified particle size, is treated as PM > 10 micrometers in diameter. The emissions of dust during cement production are based on the upper limit values of the Chinese cement industry atmospheric pollutant emission standards. According to the dust emission concentration from different equipment in cement production, the dust emission quantity from each production stage can be calculated. Among them, the dust emission from raw material grinding accounts for approximately 55% of the total, cement grinding accounts for about 20%, coal preparation stage accounts for 13%, and clinker calcination process accounts for 12%. 粉尘，未标明粒径，按PM>10处理。水泥生产过程中粉尘的排放数据采用中国水泥工业大气污染物排放标准的上限值。根据水泥生产不同设备的粉尘排放浓度计算水泥生产过程中各个生产阶段的粉尘排放量，其中生料粉磨排放粉尘浓度约占55%，水泥粉磨约占 20%，煤粉制备阶段占 13%，煅烧过程占12%。 chemical oxygen demand Output 0.0102 0.0102 COD. The emission of COD is based on the results of the first national survey of pollution sources in the Chinese cement industry (COD 0.06g/t clinker). COD。COD排放量来自第一次中国水泥制造业污染源普查结果（COD0.06g/t熟料）。 Oils, unspecified Output 0.269 0.269 Oil 油 methane (fossil) Output 0.754 0.754 Methane 甲烷 mercury Output 0.0086 0.0086 Mercury 汞 cement, portland fly-ash cement Output 1000.0 1000.0 portland fly ash cement 粉煤灰硅酸盐水泥