Cradle to Gate
Identity ID
90f3a053-2386-48e3-adbb-2ed81bcd93b3
Materials
Associated ID
b882cde2-68c7-428e-ae9d-e596282f8409
Included activities starts
Included activities ends
Description
This dataset represents iron ore from underground mining in Jiangxi. It covers the life cycle inventory cradle-to-gate, starting 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, transport equipment, personnel commuting, and direct or indirect greenhouse gas emissions from 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 underground iron ore mining in Jiangxi.
Activity Description
This dataset describes underground iron ore mining in Jiangxi, with the following operational processes:
1. Drilling
Drilling is the process of creating boreholes in underground ore bodies in preparation for blasting. Drilling equipment (such as drill jumbos) is used to bore holes into the ore body for charging with explosives. The accuracy and efficiency of drilling directly affect the subsequent blasting effectiveness and overall mining efficiency.
2. Blasting
Blasting involves detonating explosives loaded into pre-drilled holes to fragment the ore. Through blasting, the ore is broken down into smaller pieces suitable for loading and transportation. Blasting operations require precise control of explosive quantity and detonation timing to ensure uniform ore fragmentation and operational safety.
3. Loading
Loading is the process of loading blasted ore into mine carts or other transport equipment. Equipment such as loaders and excavators are used to load the ore. The efficiency of loading is crucial to subsequent transportation and mining progress.
4. Transportation
Underground ore transportation is the process of moving loaded ore to the hoisting point. Transportation methods include mine carts, electric trolleys, or belt conveyors. The transportation system must be designed rationally to ensure safe and efficient delivery of the ore.
5. Hoisting
Hoisting is the process of transporting underground ore to the surface using hoisting systems. Hoists or lifting equipment are primarily used to raise the ore to the surface. The safety and efficiency of hoisting equipment directly affect the overall mining operations.
6. Ventilation
Ventilation is the process of ensuring air circulation in underground mines to provide fresh air and remove harmful gases. Ventilation systems include fans, air ducts, and air regulation devices, ensuring a suitable working environment underground.
7. Drainage
The drainage of underground mining areas is the process of removing accumulated water from mines, including groundwater and seepage. Equipment such as drainage pumps and drainage pipelines are used to discharge the accumulated water, preventing its impact on mining operations and equipment.
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. China is the world's largest steel producer and has enormous demand for iron ore. However, China's iron ore resources are characterized by low grade and high impurity content, requiring most iron ore to undergo beneficiation before use. Magnetic separation is the main beneficiation technology for iron ore in China, especially suitable for magnetite and vanadium-titanium magnetite. For non-magnetic or weakly magnetic ores such as hematite, limonite, and siderite, a combination of processes including roasting, gravity separation, high-intensity magnetic separation, and flotation is typically required to improve the yield and grade of iron concentrate.
Time period
2022
2026
Geography
China,Jiangxi
Geography comment
Forming Jiangxi average data through merging data from multiple sources
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The underground iron ore mining process in China includes procedures such as drilling, blasting, loading, transportation, hoisting, ventilation, and drainage.