Cradle to Gate
Identity ID
b5bfd2df-b597-4e0e-9c03-ee8745aef1bf
Materials
Associated ID
dfc782a9-6edd-4b92-8f31-026910d5df5e
Included activities starts
Included activities ends
Description
This dataset represents the extraction of magnetite ore in Xizang. It covers the life cycle inventory (cradle-to-gate) from drilling to the production of iron ore, including all activities related to iron ore mining and production, but excluding the production of drilling rigs, transportation equipment, personnel travel during mining operations, and direct or indirect greenhouse gas emissions from daily office operations. The dataset is 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 Xizang.
Activity Description
This dataset describes the mining of magnetite ore in Tibet. The mining methods mainly include two basic forms: open-pit mining and underground mining.
Open-pit mining: Open-pit mining involves removing the overlying rock and soil covering the ore body to directly expose the ore body at the surface for extraction. This method is typically applied to ore deposits that are shallow and large in scale, offering advantages such as lower mining costs and high production efficiency. Typical open-pit mining procedures include drilling, blasting, overburden removal, ore loading, and transportation. Major equipment used includes excavators, drills, bulldozers, and mining 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 deposits with deep burial or where surface conditions are unsuitable for open-pit mining. The underground mining process includes shaft construction, ore extraction, and hoisting, using equipment such as drilling jumbos, hoists, and mine cars. The advantages of underground mining include minimal surface disturbance; however, it involves higher costs and stringent 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,Xizang Autonomous Region
Geography comment
Forming an average dataset for Tibet 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, primarily involving two methods:
Open-pit mining: Directly extracting ore by removing overlying rock and soil from the surface. This method is suitable for shallow deposits, features low costs and high production efficiency, and typically employs large equipment such as excavators and bulldozers.
Underground mining: Accessing deep ore bodies through the construction of underground tunnels. This method is suitable for deeply buried deposits, has higher costs, causes less surface disturbance, but requires enhanced safety measures.