Cradle to Gate
Identity ID
4f13efff-005a-4b8d-83dd-e1582857dd89
Materials
Associated ID
ff8b797f-9036-4153-a8a4-bc81c01a38fa
Included activities starts
Included activities ends
Description
This dataset represents the open-pit mining of magnetite ore in Jiangxi. It provides a life cycle inventory (cradle-to-gate) from drilling to the production of iron ore, covering all activities related to magnetite mining and production, but excluding the production of drilling rigs, transportation equipment, and other machinery, as well as direct or indirect greenhouse gas emissions from personnel commuting and daily office operations during the mining production process. The dataset was formed by consolidating data from multiple 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 open-pit magnetite mining in Jiangxi.
Activity Description
This dataset describes open-pit mining of iron ore in Jiangxi Province, with the following operational procedures:
1. Drilling
Drilling is a step in open-pit mining used to prepare for blasting. Typically, a drill rig is employed to bore a series of holes into the ore body, which will later be filled with explosives. The primary objective of drilling is to ensure effective fragmentation of the ore during blasting, 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 blasting agents (such as emulsion explosives, dynamite, etc.) and then detonating them, the ore is broken into smaller pieces. The effectiveness of blasting directly influences the efficiency of subsequent loading and hauling operations. Blasting operations must carefully control parameters such as timing, charge quantity, and blasting methods to ensure uniform fragmentation of the ore and operational safety.
3. Shoveling and Loading
Shoveling and loading is the process of loading broken ore into transport equipment. This operation is typically carried out using excavators, loaders, and similar machinery. The efficiency of shoveling and loading directly affects ore transportation and the overall economic viability of the mining process. Shoveling and loading operations must consider factors such as ore distribution, equipment operational range, and efficiency. Transportation
Transportation is the process of moving the excavated ore from the mining area to the processing plant or storage area. Common transportation methods include haul trucks, conveyors, and belt conveyors. The main 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 factors such as mine topography, ore characteristics, and transport distance. Drainage
During the open-pit mining process, large amounts of 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 drainage ditches, pumping stations, and drainage pipes, designed to rapidly remove accumulated water from the mining area and prevent operational disruptions and safety hazards caused by water accumulation.
Process Description
Iron ore is the primary raw material for steel production, and steel is one of the core materials in modern industry and infrastructure development. China is the world's largest steel producer and has enormous demand for iron ore. Based on the natural types of ore and ore processing technological properties, ores are classified into three categories according to the TFe/FeO ratio. Among them, magnetite ore (TFe/FeO ≤ 3.5): steel-gray to dark gray, granular texture, with massive, banded, spotted, or disseminated structure.
Time period
2022
2026
Geography
China,Jiangxi
Geography comment
Forming Jiangxi's average data through merging data from multiple sources
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Open-pit mining includes processes such as drilling, blasting, loading, transportation, drainage, environmental protection, and road maintenance.