Cradle to Gate
Identity ID
c388f540-9930-40ae-b443-a2c350307405
Materials
Associated ID
ff8b797f-9036-4153-a8a4-bc81c01a38fa
Included activities starts
Included activities ends
Description
This dataset represents open-pit mining of magnetite in Hunan. It includes a life cycle inventory cradle-to-gate, covering the entire process from drilling to iron ore production, encompassing all activities related to vanadium-titanium iron concentrate mining and production, but excluding direct or indirect greenhouse gas emissions from the production of drilling rigs, transportation equipment, personnel travel, and daily office operations during the mining production process. The dataset was compiled from multiple sources based on national references 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)', representing the average production level of open-pit magnetite mining in Hunan.
Activity Description
This dataset describes open-pit mining of magnetite in Hunan Province, with the following process flow:
1. Drilling
Drilling is a step in open-pit mining used to prepare for blasting. Drilling rigs are generally used to bore a series of holes into the ore body, which will then be filled with explosives. The main objective of drilling is to ensure that the blasting effectively fragments the ore, facilitating subsequent loading and transportation. Parameters such as drilling depth, hole spacing, and hole diameter must be designed according to the characteristics of the ore body and the mining plan.
2. Blasting
Blasting is one of the most critical steps in open-pit mining. By filling pre-drilled holes with explosives (such as emulsion explosives, nitroglycerin explosives, etc.) and then detonating them, the ore is broken into smaller fragments. The effectiveness of blasting directly affects the efficiency of subsequent loading and hauling operations. Blasting operations require strict control over timing, quantity of explosives, and blasting methods to ensure uniform ore fragmentation and operational safety.
3. Shoveling
Shoveling is the process of loading crushed ore into transportation equipment. This operation is typically carried out using excavators, loaders, and similar machinery. The efficiency of shoveling directly affects ore transportation and the overall economic performance of the mining process. Shoveling operations must take into account factors such as ore distribution, equipment operating range, and efficiency.
4. Transportation
Transportation is the process of moving excavated ore from the mining area to processing plants or storage areas. Common transportation methods include haul trucks, conveyor belts, and belt conveyors. The primary tasks during transportation are to ensure the safe and efficient movement of ore, minimizing ore loss and contamination. The selection and layout of transportation equipment should be rationally designed based on the mine's topography, ore characteristics, and transport distance. Drainage
During open-pit mining operations, rainwater, groundwater, or other liquids often accumulate in the mining area. Therefore, drainage is a critical component in ensuring smooth mining operations. Drainage systems typically include facilities such as ditches, pumping stations, and drainage pipelines, designed to quickly remove accumulated water from the mining area and prevent equipment damage and safety hazards caused by water accumulation.
Process Description
This dataset describes magnetite, with the following information: Iron ore is the main 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 significant demand for iron ore. Based on the natural types of ore and ore processing technical properties, ores are classified into three categories according to the TFe/FeO ratio. Magnetite ore (TFe/FeO ≤ 3.5) is steel-gray to dark grayish-black, granular in texture, and exhibits massive, banded, spotted, or disseminated structures.
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 open-pit mining process of iron ore in China includes several main operations such as drilling, blasting, loading, transportation, and dewatering.