Process information
| Key Data Set Information | |
| Location | CN |
| Reference year | 2005 |
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| Use advice for data set | When utilizing this data set for Life Cycle Assessment (LCA), the user must ensure that the scope of their study matches the defined boundaries of the dataset, which include raw material pretreatment, raw material grinding, raw material calcination, clinker grinding, cement homogenization, and cement storage. It is important to note that the data represents a specific compressive strength (42.5MPa at 28 days) and the wet process technology. Data users should not extrapolate this information to other types of cement or different production methods without proper adjustment. |
| Technical purpose of product or process | This data set describes the production process of ordinary Portland cement with a strength grade of 42.5MPa, using the wet rotary kiln method. The cement produced is suitable for construction applications requiring high early strength gain, such as large-scale infrastructure projects, commercial buildings, and residential constructions. |
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| General comment on data set | Wet rotary kiln production process.The raw material limestone is crushed by crusher, and the raw materials were crushed and washed into a slurry. The limestone, clay (slurry), iron powder, and appropriate amount of water are fed into the mill for grinding at the grinding head of raw material mill. The ground raw material slurry is pumped into the slurry storage by slurry pump, and then fed into the wet rotary kiln for calcination after evenly blending and meeting the requirements. The clinker from the kiln is cooled by the clinker cooling equipment and then sent to the clinker storage, then mixed with mixed materials and gypsum in a certain ratio, ground by the cement mill and then into the cement warehouse, packaged by the packaging machine and shipped out of the factory or in bulk. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Technological representativeness | |
| Technology description including background system | The raw material limestone is crushed by the crusher 4, and the raw material clay is crushed and washed into a slurry. At the grinding head of the raw material grinding mill 7, the limestone, clay (slurry), iron powder and appropriate amount of water are fed into the grinding mill for powder grinding. The raw material slurry made by grinding is sent to the material slurry warehouse 8 by the mud pump. After being evenly prepared and meeting the requirements, it is fed to the wet rotary kiln 9 for calcining. The kiln clinker is cooled by the clinker cooling equipment and then sent to the clinker storage warehouse. It is then mixed with mixed materials and gypsum in a certain proportion, ground by a cement mill, and then put into the cement warehouse. It is packaged by a packaging machine and shipped out of the factory or in bulk. Factory. |
| Flow diagram(s) or picture(s) | |
| Mathematical model | |
| Model description | The functional unit is the service performance of 1 kilogram of cement with a 28-day compressive strength of 42.5MPa, that is, IFu=42.5kgMPa.The research scope is defined as: raw material pretreatment, raw material grinding, raw material calcination, clinker grinding, cement homogenization, and cement storage. |
Modelling and validation
Administrative information
Inputs and Outputs