Cradle to Gate
Identity ID
ecc982ac-92b0-4cb6-8f40-329d253bdcd5
Materials
Associated ID
b882cde2-68c7-428e-ae9d-e596282f8409
Included activities starts
Included activities ends
Description
This dataset represents underground mining of magnetite in Hunan. It includes the life cycle inventory (cradle-to-gate) from rock drilling to iron ore production, covering all activities related to vanadium-titanium iron concentrate mining and production, but excluding direct or indirect greenhouse gas emissions from the production of drilling machinery, transportation equipment, personnel travel during mining operations, and daily office activities. The dataset was compiled from multiple sources based on national documents 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 open-pit magnetite mining in Hunan.
Activity Description
This dataset describes underground mining of magnetite in Hunan Province, with the following process flow:
1. Rock Drilling
Rock drilling is the process of drilling holes into underground ore bodies in preparation for blasting. Drilling machines (such as drill rigs) are used to create holes in the ore body to load explosives. The accuracy and efficiency of rock drilling directly affect the subsequent blasting effectiveness and overall mining performance.
2. Blasting
Blasting involves the use of explosives detonated in the 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 timing to ensure uniform ore fragmentation and operational safety.
3. Loading
Loading is the process of loading broken ore into mine trucks or other transportation equipment after blasting. Equipment such as loaders and excavators are used for loading ore. The efficiency of loading is crucial for subsequent transportation and mining progress.
4. Transportation
Underground ore transportation is the process of conveying the loaded ore to the hoisting point. Transportation methods include mine cars, electric carts, or belt conveyors. The transportation system must be designed rationally 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 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 pipes is used to remove the water, preventing adverse impacts of water accumulation on mining operations and equipment.
Process Description
This dataset describes magnetite from Hunan, with the following information: Iron ore is the primary raw material for steel production, and steel is one of the core materials in modern industry and infrastructure construction. China is the world's largest steel producer and has a tremendous demand for iron ore. Based on the natural types of ore and ore processing technical properties, ores are classified into three types according to the TFe/FeO ratio. Among them, magnetite ore (TFe/FeO ≤ 3.5) is steel-gray to dark gray, with granular texture and massive, banded, spotted, or disseminated structure.
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
The underground iron ore mining process in China includes procedures such as drilling, blasting, loading, transportation, hoisting, ventilation, and drainage.