Cradle to Gate
Identity ID
6605b2f6-07b6-4f33-a810-8e4747c1ca28
Materials
Associated ID
b882cde2-68c7-428e-ae9d-e596282f8409
Included activities starts
Included activities ends
Description
This dataset represents the underground mining of magnetite ore in Heilongjiang. It provides a life cycle inventory (cradle-to-gate) from rock drilling to the production of magnetite ore, covering all activities associated with magnetite mining production, but excluding the production of drilling rigs, transport equipment, personnel travel, and the direct or indirect greenhouse gas emissions from daily office operations during the mining production process. The dataset was formed by consolidating data from multiple sources based on national standards such as '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 represents the average production level of underground magnetite mining in Heilongjiang.
Activity Description
This dataset describes the underground mining of magnetite ore in Heilongjiang Province. The process flow is as follows:
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 for loading explosives. The accuracy and efficiency of rock 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 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 broken ore into ore cars or other transport equipment after blasting. Equipment such as loaders and excavators are used to load the ore. The efficiency of loading is critical to subsequent transportation and mining progress.
4. Transportation
Underground ore transportation is the process of moving loaded ore to hoisting points. Transportation methods include ore cars, electric carts, or belt conveyors. The transport system must be properly designed to ensure safe and efficient ore delivery.
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 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 regulation devices, ensuring a suitable working environment underground.
7. Drainage
Underground mine drainage is the process of managing accumulated water within the mine, including groundwater and seepage. Pumps, drainage pipes, and other equipment are used to remove the accumulated water, preventing its adverse effects 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 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,Heilongjiang
Geography comment
Forming Heilongjiang's average data through merging data from multiple sources
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The underground mining process of iron ore in Heilongjiang includes procedures such as drilling, blasting, loading, transportation, hoisting, ventilation, and dewatering.