Cradle to Gate
Identity ID
d1fc86cb-c4cd-40e1-9e2f-df6235523824
Materials
Associated ID
f8e99336-1c66-444e-8189-fee1a9cb06b1
Included activities starts
Included activities ends
Description
This dataset represents iron ore mined underground in Inner Mongolia. It covers the life cycle inventory (cradle-to-gate) from drilling to iron ore production, including all activities related to iron ore mining and production, but excluding direct or indirect greenhouse gas emissions from the production of drilling rigs, transportation equipment, personnel travel during mining production, and 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 underground iron ore mining in Inner Mongolia.
Activity Description
This dataset describes underground iron ore mining in Inner Mongolia, with the following process steps:
1. Drilling
Drilling is the process of creating boreholes in underground ore bodies in preparation for blasting. Drilling machines (such as drill jumbos) are used to bore holes into the ore body to load explosives. The accuracy and efficiency of drilling directly affect the subsequent blasting performance and overall mining efficiency.
2. Blasting
Blasting involves using explosives detonated in pre-drilled holes to fragment the ore. Through blasting, the ore is broken 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. Shoveling and Loading
Shoveling and loading is the process of loading broken ores into mine trucks or other transportation equipment. Equipment such as loaders and excavators are used for ore loading. The efficiency of shoveling and loading is crucial for subsequent transportation and mining progress.
4. Transportation
Underground ore transportation is the process of moving the loaded ore to the hoisting point. Transportation methods include mine cars, electric carts, or belt conveyors. The transportation system must be designed properly to ensure safe and efficient ore delivery.
5. Hoisting
Hoisting is the process of transporting underground ore to the surface using a hoisting system. Hoists or lifting equipment are primarily used to raise the ore to the surface. The safety and efficiency of the hoisting equipment directly affect the overall mining operation.
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 conditioning equipment to ensure a suitable working environment underground.
7. Drainage
Underground mine drainage is the process of managing accumulated water within the mine, including groundwater and seepage. Equipment such as drainage pumps and pipelines is used to remove 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,Inner Mongolia Autonomous Region
Geography comment
Forming average data for Inner Mongolia through data consolidation from multiple sources
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The process of underground iron ore mining includes procedures such as drilling, blasting, loading, transportation, hoisting, ventilation, and drainage.