Process information
| Key Data Set Information | |
| Location | CN |
| Name |
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| Use advice for data set | When utilizing this dataset, ensure that all stages from raw meal preparation to cement grinding are included in the system boundaries. The database user should recognize that the functional unit is 1 ton of cement product, which is essential for comparison with other datasets. Methodological attention should be paid to the inclusion of industrial waste treatment and the allocation procedures for co-products and environmental burdens. Users should ensure their LCA studies are consistent with the technological applicability of the equipment and processes described, especially the 'two mills and one kiln' system with high automation and reliability. Keep in mind the advancements in distributed computer control systems which enhance process stability, when modeling use phase behavior. |
| Technical purpose of product or process | The Portland-composite cement produced using this industrial process is intended for construction purposes, including the production of concrete, mortar, and other building materials. The cement is created through a modern dry process using a rotary kiln and has a daily capacity of 4000 tons. It incorporates complex silicate compounds and a mix of industrial by-products and solid wastes to minimize environmental impacts, aligning with sustainable development principles in the construction industry. |
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| General comment on data set | The conventional production process refers to the normal operation of the rotary kiln.The company's cement production line consists of a vertical raw material mill, a 5-stage preheater, a rotary kiln, and a large ball mill (cement mill) equipped with a roller press, as well as equipment for crushing, grinding, and conveying limestone and gypsum. The production system is referred to as the "two mills and one kiln" system, namely the raw material mill, cement mill, and rotary kiln incineration. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Technological representativeness | |
| Technology description including background system | The company's cement production line consists of main equipment such as a vertical raw material mill, a 5-stage external decomposition furnace, a rotary kiln, and a large ball mill (cement mill) equipped with a roller press. It is also equipped with limestone, gypsum crushing, conveying and adding equipment. This production system is referred to as the "two grinding and one burning" system, that is, raw material mill, cement mill and rotary kiln burning. The entire production process is centrally controlled by an advanced distributed computer control system, which has the characteristics of high automation, stable process and strong reliability.The cement production process includes the stages of raw material mining and transportation, raw meal preparation, pulverized coal preparation, clinker burning and cement grinding. The main production process is that after limestone and auxiliary raw materials (glue, silica) are crushed, they are matched with treated industrial waste in appropriate proportions, crushed by a vertical raw material mill to prepare raw meal, and then enter the raw material homogenizing pile for homogenization treatment. It enters the rotary kiln through the 5-stage sealed external calciner (RSP), burns the clinker in a high temperature state, and enters the clinker storage: it is then crushed by a cement mill equipped with a compilation press, and finally forms various types of cement products. . The production process flow is shown in Figure 3.1. |
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| Mathematical model | |
| Model description | The system boundaries are raw meal preparation, pulverized coal preparation, clinker calcination, and cement grinding. Take 1 ton of cement product as 1 functional unit. |
Modelling and validation
Administrative information
Inputs and Outputs