关键数据集信息 | |
位置 | CN |
地域代表性说明 | 中国联合水泥公司 |
名字 |
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数据集使用建议 | 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。 |
产品或过程的技术目的 | 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。 |
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类名
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层次结构级别
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关于数据集的一般性意见 | 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。 |
版权 | 不 |
数据集的所有者 | |
参考定量 | |
参考流 |
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技术代表性 | |
技术说明,包括后台系统 | 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). |
流程图或图片 | |
数学模型 | |
建模说明 | 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。 |
生命周期清单方法和分配 | |||||
数据集的类型 | LCI result | ||||
偏离生命周期清单方法原理/解释 | 无 | ||||
与建模常数/解释的偏差 | 无 | ||||
数据来源、处理和代表性 | |||||
偏离数据截止和完整性原则/解释 | 无 | ||||
数据选择和组合原则 | 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。 | ||||
偏离数据选择和组合原则/解释 | 无 | ||||
偏离数据处理和外推原则/解释 | 无 | ||||
用于此数据集的数据源 | |||||
采样程序 | 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%。 | ||||
完整性 | |||||
产品模型的完整性 | No statement | ||||
验证 | |||||
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数据生成 | |
数据集生成/建模 | |
数据输入方式 | |
时间戳(上次保存) | 2024-03-19T21:18:09+08:00 |
出版和所有权 | |
UUID | 15ca2205-eb54-4487-945f-9ca8cb10d978 |
最后修订日期 | 2024-04-20T14:41:55.049300+08:00 |
数据集版本 | 00.01.005 |
永久数据集 URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=15ca2205-eb54-4487-945f-9ca8cb10d978&version=01.00.000&stock=TianGong |
数据集的所有者 | |
版权 | 不 |
许可证类型 | Free of charge for all users and uses |
输入
流类型 | 分类 | 流 | 位置 | 平均量 | 计算量 | 最小量 | 最大量 | ||
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Elementary flow | Resources / Resources from ground / Non-renewable material resources from ground | 974.67 kg | 974.67 kg | ||||||
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Waste flow | Wastes | 174.54 kg | 174.54 kg | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable material resources from ground | 50.11 kg | 50.11 kg | ||||||
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Product flow | Wastes / Mining waste | 49.95 kg | 49.95 kg | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable material resources from ground | 36.9 kg | 36.9 kg | ||||||
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Waste flow | Wastes / Post consumer waste | 54.67 kg | 54.67 kg | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable material resources from ground | 10.78 kg | 10.78 kg | ||||||
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Waste flow | Wastes | 6.04 kg | 6.04 kg | ||||||
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Waste flow | Wastes | 3.99 kg | 3.99 kg | ||||||
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Waste flow | Wastes / Radioactive waste | 7.27 kg | 7.27 kg | ||||||
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Product flow | Materials production / Other mineralic materials | 0.65 kg | 0.65 kg | ||||||
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Elementary flow | Resources / Resources from water / Renewable material resources from water | 290.0 m3 | 290.0 m3 | ||||||
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Product flow | Energy carriers and technologies / Electricity | 238.464 MJ | 238.464 MJ | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable energy resources from ground | 100.78 MJ | 100.78 MJ | ||||||
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Product flow | Transport services / Other transport | 294.1 t*km | 294.1 t*km | ||||||
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输出
流类型 | 分类 | 流 | 位置 | 平均量 | 计算量 | 最小量 | 最大量 | ||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 561.85 kg | 561.85 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.1 kg | 0.1 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.2 kg | 0.2 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.13 kg | 0.13 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.00259 kg | 0.00259 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.00811 kg | 0.00811 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 1.084E-4 kg | 1.084E-4 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to fresh water | 0.023 m3 | 0.023 m3 | ||||||
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Product flow | Materials production / Other mineralic materials | 1000.0 kg | 1000.0 kg | ||||||
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