15ca2205-eb54-4487-945f-9ca8cb10d978 cement production;cement, alternative constituents 6-20%, 42.5MPa;new suspension preheater;mixed solid wastes 水泥生产;水泥, 替代成分 6-20%, 42.5MPa;新型悬浮预热器;混合固废 Unit processes Materials production Other mineralic materials Common cement where the 3rd day compressive strength is greater than 17 MPa and the 28th day compressive strength is 42.5 MPa. Industrial solid waste that contains silica and flue gas desulfurized (FGD) gypsum is used in cement manufacture instead of clay and gypsum. The main stream of cement production – new suspension preheater (NSP) – is applied in the Chinese cement industry. There are three primary production processes: The pulverized coal and raw material preparation process, including the transfer, grinding, homogenization, and storage of raw materials, and the grinding and storage of coal. In the incineration process, the ground and mixed raw materials are inputted into the preheater and then the calciner and decomposed with 60% coal at 950 ◦C. The limestone decomposes to about 95% in the calciner and 5% in the kiln. The decomposed materials fall into the kiln and are incinerated to clinker with 40% coal at a temperature of over 1400 ◦C. In the finishing process, the cement is produced when the clinker, mineral additions, and gypsum are granulated finely by a grinding mill. The raw materials are suspended and heated by recycled hot air in the preheater. 普通水泥的第三天抗压强度大于17 MPa，第28天抗压强度为42.5 MPa。新型悬浮预热器（New suspension preheater，NSP）是中国水泥工业中主要的水泥生产工艺。该工艺包括三个主要的生产过程：煤粉和生料制备过程，包括原材料的输送、研磨、均化和存储以及煤的研磨和存储；在燃烧过程中，混合磨碎的生料被输入到预热器中，然后经过煅烧器分解，60％的煤在950℃下燃烧。在煅烧器中，石灰石分解率约为95％，在窑中分解率为5％。分解后的物料落入窑中，在超过1400℃的温度下与40％的煤燃烧成熟料。在成品处理过程中，当熟料、矿物添加剂和石膏在磨煤机中细细粉碎时，水泥就被生产出来了。生料在预热器中通过再生的热空气悬浮并加热。 23 The China United Cement Corporation 中国联合水泥公司 The main stream of cement production – new suspension preheater (NSP) – is applied in the Chinese cement industry. There are three primary production processes: The pulverized coal and raw material preparation process, including the transfer, grinding, homogenization, and storage of raw materials, and the grinding and storage of coal. In the incineration process, the ground and mixed raw materials are inputted into the preheater and then the calciner and decomposed with 60% coal at 950 ◦C. The limestone decomposes to about 95% in the calciner and 5% in the kiln. The decomposed materials fall into the kiln and are incinerated to clinker with 40% coal at a temperature of over 1400 ◦C. In the finishing process, the cement is produced when the clinker, mineral additions, and gypsum are granulated finely by a grinding mill. The raw materials are suspended and heated by recycled hot air in the preheater (Hasanbeigi et al., 2010). The main stream of cement production – new suspension preheater (NSP) – is applied in the Chinese cement industry. There are three primary production processes: The pulverized coal and raw material preparation process, including the transfer, grinding, homogenization, and storage of raw materials, and the grinding and storage of coal. In the incineration process, the ground and mixed raw materials are inputted into the preheater and then the calciner and decomposed with 60% coal at 950 ◦C. The limestone decomposes to about 95% in the calciner and 5% in the kiln. The decomposed materials fall into the kiln and are incinerated to clinker with 40% coal at a temperature of over 1400 ◦C. In the finishing process, the cement is produced when the clinker, mineral additions, and gypsum are granulated finely by a grinding mill. The raw materials are suspended and heated by recycled hot air in the preheater (Hasanbeigi et al., 2010). This dataset represents the cement manufacturing process with a strength grade of 42.5 MPa, where 6-20% of alternative constituents are included in the mix. This cement is suitable for construction applications requiring high early and definitive strength. The new suspension preheater (NSP) technology employed improves thermal efficiency and allows the use of mixed solid industrial wastes, reducing the reliance on conventional raw materials and leveraging waste heat energy recovery for power generation. 该数据集代表了强度等级为42.5 MPa的水泥生产过程，其中混合物含有6-20%的替代成分。这种水泥适用于需要高初期和最终强度的建筑应用。采用的新型悬浮预热器（NSP）技术提高了热效率，允许使用混合的固体工业废物，减少了对传统原材料的依赖，并利用废热能回收进行发电。 CpYRbbNgzo3Oo3xicwrcWTnrnhh.png One ton of cement with 42.5 MPa strength grade is used as functional unit (FU).System boundaries involve raw material and energy production, road transport, raw material crushing, clinker production, cement milling and packaging, waste heat energy recovery, direct emissions, on-site flue gas treatment and solid waste reuse in cement plants. 使用42.5 MPa强度等级的1吨水泥作为功能单位（FU）。系统边界涉及原材料和能源生产、道路运输、原材料破碎、熟料生产、水泥磨和包装、废热能回收、直接排放、现场烟气处理和水泥厂中固体废物再利用。 LCI result None 无 None 无 None 无 Annual average data on the operational processes of cement production (e.g. raw material and energy consumption, transportation distance, energy recovery, direct emissions, waste disposal, capital costs) were obtained from a survey of China United Cement Company. 水泥生产的操作过程（如原材料和能源消耗、运输距离、能量回收、直接排放、废弃物处理、资本成本）的年度平均数据是从中国联合水泥公司的调查中获得的。 None 无 None 无 Dong Yang, Lin Fan, Feng Shi, Qian Liu, & Yajing Wang. (2017). Comparative study of cement manufacturing with different strength grades using the coupled LCA and partial LCC methods-A case study in China. RESOURCES CONSERVATION AND RECYCLING, 119, 60–68. Dong Yang, Lin Fan, Feng Shi, Qian Liu, & Yajing Wang. (2017). Comparative study of cement manufacturing with different strength grades using the coupled LCA and partial LCC methods-A case study in China. RESOURCES CONSERVATION AND RECYCLING, 119, 60–68. China United Cement Co., Ltd. accounts for 9.45% of China's cement market.According to data from the "2014 China Cement Yearbook", the number of 5000t/d and 2500t/d cement production lines using new suspension preheater technology accounted for 56.1% and 28.3% of all cement production lines in China respectively. Production lines with a scale of 5000t/d and 2500t/d may have relative accuracy, reflecting the main characteristics of China's cement production.Parameter: value;Cement production line scale: 5000t/d×1, 2500t/d×2;Cement production technology: new suspended preheater;Power generation recovery efficiency: 30%;Dust removal technology: dry bag dust removal;Dust removal efficiency: 99.95%;Denitrification technology: selective non-catalytic reduction method;Denitrification efficiency: 50.00%. 中国联合水泥有限公司，占中国水泥市场的9.45%。根据《2014年中国水泥年鉴》的数据，采用新型悬浮预热器技术的5000t/d和2500t/d水泥生产线数量分别占中国所有水泥生产线的56.1%和28.3%。规模为5000t/d和2500t/d的生产线可能具有相对准确性，反映了中国水泥生产的主要特点。参数：数值；水泥生产线规模：5000t/d×1，2500t/d×2；水泥生产技术：新型悬浮预热器；发电回收效率：30%；除尘技术：干法袋式除尘；除尘效率：99.95%；脱硝技术：选择性非催化还原法；脱硝效率：50.00%。 When utilizing this LCA data set, users should consider the inclusion of all relevant environmental impacts within the system boundaries specified: raw material and energy production, transportation, production processes, energy recovery, and waste management. Attention should be paid to the methodology for allocation of environmental impacts where mixed solid wastes are used as raw materials. The data set reflects the practices of the China United Cement Corporation and should not be extrapolated without adjusting for regional and technological differences. 在使用此LCA数据集时，用户应考虑在指定的系统边界内包括所有相关的环境影响：原材料和能源生产、运输、生产过程、能源回收和废物管理。在使用混合固体废物作为原料时，应注意环境影响分配方法的适用性。该数据集反映了中国联合水泥公司的实践，并且在没有调整区域和技术差异的情况下不应进行推算。 The manufacturing of raw materials except limestone is ignored because almost all of these materials are industrial solid waste. 除了石灰石外，原材料的制造被忽略，因为几乎所有这些材料都是工业固体废物。 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 2024-04-20T14:41:55.049300+08:00 00.01.005 https://lcadata.tiangong.world/showProcess.xhtml?uuid=15ca2205-eb54-4487-945f-9ca8cb10d978&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 calcium carbonate Input 974.67 974.67 Limestone 石灰石 ash Input 174.54 174.54 Fly ash 粉煤灰 gypsum Input 50.11 50.11 Gypsum 石膏 Iron tailings Input 49.95 49.95 lron powder mineral mud 铁粉矿泥 clay Input 36.9 36.9 Quartz sand mineral mud 石英砂矿物泥 blast furnace slag Input 54.67 54.67 Slag 矿渣 shale Input 10.78 10.78 Shale 页岩 Construction waste Input 6.04 6.04 Construction waste 建筑垃圾 Mineral waste Input 3.99 3.99 Coal gangue 煤矸石 Carbide slag Input 7.27 7.27 Acetylene sludge 乙炔渣 ammonia, anhydrous, liquid Input 0.65 0.65 Ammonia 氨 water Input 290.0 290.0 Water 水 Electricity Input 238.464 238.464 Electricity. The LCI data for electricity and coal were collected from the literature. 电。从文献中收集了电力和煤的LCI数据。 hard coal;  26.3 MJ/kg Input 100.78 100.78 Coal. The LCI data for electricity and coal were collected from the literature. 煤炭。从文献中收集了电力和煤的LCI数据。 transport in t*km Input 294.1 294.1 Road transport. According to the survey, the transport distance of raw materials in the cement production is about 200 km. The environmental impacts of road transportation were taken from the literature. 公路运输。根据调查，原材料在水泥生产中的运输距离约为200公里。道路运输的环境影响取自文献。 carbon dioxide (fossil) Output 561.85 561.85 CO2 二氧化碳 sulfur dioxide Output 0.1 0.1 SO2 SO2 Nitrogen oxides Output 0.2 0.2 NOX NOx particles (> PM10) Output 0.13 0.13 Particulates. The particle size is not specified. Here we treat it as PM>10. 颗粒，未标明粒径，按PM>10处理。 fluoride Output 0.00259 0.00259 Fluoride 氟化物 ammonia Output 0.00811 0.00811 Ammonia 氨 mercury Output 0.0001084 0.0001084 Hg Hg Water Output 0.023 0.023 Waste water 废水 cement, alternative constituents 6-20%, 42.5MPa Output 1000.0 1000.0 42.5 MPa cement 42.5MPA水泥