Cradle to Gate
Identity ID
61dc41aa-d88d-4b21-aa63-126ea6867c9e
Materials
Associated ID
ffebbbc6-e169-4775-979d-94e42742d181
Included activities starts
Included activities ends
Description
This dataset represents the life cycle inventory (cradle-to-gate) of magnetite ore mining in Hunan, covering all activities related to iron ore mining and production from the beginning of rock drilling to iron ore output, but excluding the production of drilling rigs, transportation equipment, and other machinery, as well as direct or indirect greenhouse gas emissions from personnel commuting and daily office operations during the mining production process. The dataset was compiled from multiple data sources based on national standards such as the 'Manual of Production and Emission Coefficients for the Iron Ore Mining and Processing Industry (0810)', 'Emission standard of pollutants for mining and mineral procressing industry (GB 28661-2012)', 'Cleaning production standard Iron ore mining and mineral processing industry', and 'The norm of the energy consumption per unit product of iron ore dressing(GB31337-2014)', and is representative of the average production level of magnetite mining in Hunan.
Activity Description
This dataset describes the mining of magnetite ore in Hunan Province, which primarily involves two basic methods: open-pit mining and underground mining.
Open-pit mining: Open-pit mining is a method that involves removing the overlying rock and soil covering the ore body to directly expose the ore body at the surface for extraction. This technique is typically applied to ore bodies that are relatively shallow and large in scale, offering advantages such as lower mining costs and higher production efficiency. Typical open-pit mining steps include drilling, blasting, stripping overburden, ore loading, and transportation. The main equipment used includes excavators, drill rigs, bulldozers, and haul trucks. Underground mining: Underground mining is primarily used for deeper ore bodies, accessing the deposit through the construction of underground shafts and tunnels. This method is suitable for ore bodies that are deeply buried or where surface conditions are not suitable for open-pit mining. The underground mining process includes mine development, ore extraction, and ore hoisting. Equipment used includes drilling rigs, hoists, and mine cars. The advantages of underground mining are minimal surface disturbance, but it involves higher costs and strict safety requirements.
Process Description
Iron ore is the primary raw material for steel production, and steel is one of the core materials for modern industry and infrastructure development. China is the world's largest steel producer and has a significant demand for iron ore. Based on the natural types of ore and ore processing technological properties, ores are classified into three types according to the TFe/FeO ratio. Among them, magnetite ore (TFe/FeO ≤ 3.5): steel-gray to dark gray, granular in texture, with massive, banded, spotted, or disseminated structures.
Time period
2022
2026
Geography
China,Hunan
Geography comment
Forming Hunan's average data through merging data from multiple sources
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
This dataset describes the mining of iron ore, mainly including two forms:
Open-pit mining: Directly accessing the ore by removing surface rock and soil, suitable for shallow deposits, with lower cost and high production efficiency, often using large equipment such as excavators and bulldozers.
Underground mining: Accessing deep ore bodies through constructing underground tunnels, suitable for deeply buried deposits, with higher cost and less surface disturbance, but requiring higher safety measures.