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Process Data set: cement production;cement, portland-composite cement, 32.5RMPa;modern dry process, five-stage kiln external decomposition, 4000 t/d (en) en zh

Key Data Set Information
Location DL-LN-CN
Geographical representativeness description Dalian Cement Company
Name
cement production;cement, portland-composite cement, 32.5RMPa;modern dry process, five-stage kiln external decomposition, 4000 t/d
Use advice for data set When using this LCA dataset, the user should consider the technological applicability of the RSP five-stage kiln external decomposition technology and the specific context of production in Dalian, China. Due to the difficulties in data collection, the users should exercise caution regarding the emission factors and may need to adjust them based on locale-specific environmental regulations and emission data. Users should also take into account that the data may need to be converted to reflect energy and raw material relationships, and that the LCA method was not used for modeling in this dataset.
Technical purpose of product or process The described process is utilized for the production of portland-composite cement of 32.5R MPa grade. This type of cement is commonly used for general construction purposes, such as in the making of precast concrete elements, residential buildings, pavements, and other infrastructures requiring moderate strength. The process implements modern dry production with RSP technology to enhance efficiency and produce cement at a large scale of 4000 tonnes per day.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Materials production / Other mineralic materials
General comment on data set The company's production process uses RSP five-stage kiln external decomposition technology, and mainly adopts advanced production equipment from Germany, France, Japan, and some domestic companies. The cement production line consists of a vertical raw mill, a 5-stage RSP (kiln external pre-decomposition tower), a rotary kiln, and a large ball mill equipped with a roller press, as well as gypsum crushing, limestone grinding, and conveying and adding equipment.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Technological representativeness
Technology description including background system The company now has a 4000t/d modern dry process production line (RSP kiln external decomposition equipment) as shown in Figure 6.2, its own independently mined open-pit limestone mine (annual limestone production capacity of 2 million tons) and a dedicated railway line in the factory. The special line for bulk cement outputs the terminal, with an annual cement production of 1.9 million tons.The company's production process adopts RSP five-stage kiln external decomposition technology, mainly using advanced production equipment from Germany, France, Japan and some domestic countries. The cement production line consists of main equipment such as a vertical raw material mill (as shown in Figure 6.1), a 5-stage RSP (pre-calcining tower outside the kiln), a rotary kiln and a large ball mill equipped with a roller press. It is also equipped with gypsum crushing and limestone crushing and conveying and adding equipment.
Mathematical model
Model description LCA method was not used for modeling.
LCI method and allocation
Type of data set Unit process, black box
Deviation from LCI method principle / explanations None
Deviation from modelling constants / explanations None
Data sources, treatment and representativeness
Deviation from data cut-off and completeness principles / explanations None
Data selection and combination principles Cement product evaluation index data is obtained through on-site surveys at cement production enterprises, and the index data comes from enterprise production process data.Due to the lack of specific industrial pollutant emission statistics, the data collection process is very difficult, and some data cannot be obtained directly, so it is obtained by converting related energy and raw materials.
Deviation from data selection and combination principles / explanations None
Deviation from data treatment and extrapolations principles / explanations None
Data source(s) used for this data set
Sampling procedure DOCC is a large-scale cement production enterprise jointly constructed and operated by Pacific Cement Co., Ltd. and China Huaneng Integrated Industries Corporation. The company was founded in 1989, covering an area of ​​500,000 square meters with a total investment of US$188 million. The company currently has 376 employees. The company now has a 4,000t/d modern dry process production line (reinforced suspension preheater (RSP) outside the kiln decomposition equipment), its own independently mined open-pit limestone mine (annual limestone production capacity of 2 million tons) and The factory has a dedicated railway line and a dedicated line for bulk cement output to the terminal, with an annual production of 1.9 million tons of cement. The company has now passed the ISO14001:2004 environmental management system certification.
Completeness
Completeness of product model No statement
Validation
Type of review
Dependent internal review
Reviewer name and institution
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2024-03-19T21:18:09+08:00
Publication and ownership
UUID c02cb8e4-fad3-4718-9147-b09862c5bf1e
Date of last revision 2024-04-20T14:40:57.305050+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=c02cb8e4-fad3-4718-9147-b09862c5bf1e&version=01.00.000&stock=TianGong
Owner of data set
Copyright No
License type Free of charge for all users and uses

Inputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow
Materials production / Other mineralic materials 985.3 kg985.3 kg
General comment limestone
Elementary flow
Resources / Resources from ground / Non-renewable material resources from ground 184.1 kg184.1 kg
General comment clay
Product flow
Materials production / Metals and semimetals 38.4 kg38.4 kg
General comment Iron powder
Product flow
Materials production / Other mineralic materials 30.0 kg30.0 kg
General comment gupsum
Product flow
Energy carriers and technologies / Electricity 230.17284 MJ230.17284 MJ
General comment Electricity
Product flow
Energy carriers and technologies / Hard coal based fuels 95.6324 kg95.6324 kg
General comment Coal

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.41 kg0.41 kg
General comment SO2. The main source of SO2 emissions in the production of building materials is from sulfides contained in fuels and raw materials.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.6815 kg0.6815 kg
General comment NOX. The emissions of NOx in the production of building materials come from two main sources. The first is the combination of N and O2 in the air at high temperatures, which is directly related to the temperature. The second is the low-temperature combination of N and O2 in the fuel, which is related to the concentration of O2.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 586.3985 kg586.3985 kg
General comment CO2. The main sources of CO2 emissions in the building materials industry are from fuel combustion and raw material decomposition. Due to the lack of statistical data on industrial pollutant emissions, it is very difficult to collect data, and some data cannot be obtained directly. Therefore, an energy and raw material conversion method is used to obtain the data.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.3002 kg0.3002 kg
General comment Dust, with an unspecified particle size, is treated as PM > 10 micrometers in diameter. The production of dust in the production of building materials is related to the content of powdered materials in the raw materials.
Elementary flow
Emissions / Emissions to water / Emissions to water, unspecified 3.9838E-5 kg3.9838E-5 kg
General comment COD (chemical oxygen demand) (mg/l). Chemical oxygen demand (COD) refers to the amount of oxidant consumed when treating wastewater with a strong oxidant. It is used to measure the degree of organic pollution in wastewater. The larger the COD value, the more severe the wastewater pollution.
Elementary flow
Emissions / Emissions to water / Emissions to water, unspecified 4.5116E-5 kg4.5116E-5 kg
General comment SS (suspended solids) (mg/l). The suspended solids in the wastewater discharged from the building materials industry mainly refer to inorganic substances, organic substances, sediment, clay, microorganisms, and other substances that are insoluble in water.
Elementary flow
Emissions / Emissions to water / Emissions to water, unspecified 1.702E-7 kg1.702E-7 kg
General comment Petroleum (mg/l). Oil pollution in wastewater mainly comes from production enterprises such as steel, coking, and petrochemicals. According to the size of the oil droplet diameter, there are three forms of oil substances in wastewater: floating oil, dispersed oil, and emulsified oil, and the difficulty of separation from wastewater increases in that order.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 41.8922 kg41.8922 kg
General comment Solid waste refers to the solid waste generated during the production process, such as dust (with an unspecified particle size, is treated as PM > 10 micrometers in diameter).
Product flow
Materials production / Other mineralic materials 1000.0 kg1000.0 kg
General comment Cement, PC32.5R