Why are core drilling machines widely used in the mining industry
Core drilling machines are widely used in the mining industry because they can accurately obtain "core samples" of underground rock formations, providing irreplaceable geological data support for mineral exploration, reserve calculation, and mining design. At the same time, they are suitable for the entire mining process and have mature and controllable technology.
Core drilling machines are widely used in the mining industry because they can accurately obtain "core samples" of underground rock formations, providing irreplaceable geological data support for mineral exploration, reserve calculation, and mining design. At the same time, they are suitable for the entire mining process and have mature and controllable technology.
1. Core value: Directly obtaining first-hand geological evidence to support mineral development decisions
The key prerequisite for mining development is to clarify the location, reserves, and quality of underground minerals. The "core" extracted by the core drilling rig through drilling is a physical sample that can intuitively reflect the underground rock strata, which cannot be replaced by other exploration equipment such as geophysical and geochemical instruments.
Mineral exploration stage: Through core analysis, it is possible to determine whether there are minerals in the strata, the mineral composition of minerals (such as gold grade of gold mines and copper content of copper mines), and their distribution patterns, to determine whether the area has mining value and avoid blind investment.
Reserve calculation stage: Based on the core data extracted from different boreholes and combined with the distribution location of boreholes, the correct distribution map of mineral resources reserves can be drawn, and the recoverable reserves can be calculated. This is the core basis for mining project initiation and investment accounting.
Mining design stage: The rock hardness, fracture development, and interface depth reflected by the rock core can guide the design of mining methods (such as open-pit or underground mining), determine the location of tunnels, select mining equipment, and reduce mining risks (such as collapse and permeability).
2. Technical adaptation: Meet the complex working conditions of mining, while balancing efficiency and accuracy
Mining exploration and mining scenarios are diverse, such as shallow surface exploration, deep underground drilling, and complex terrain operations. The technical characteristics of core drilling machines can correctly adapt to these needs, balancing "drilling efficiency" and "sample quality".
Adapting to complex geology and terrain: Whether it is hard granite formations, fractured sedimentary rock formations, or complex terrains such as mountains, plateaus, mining areas, etc., core drilling machines can achieve stable drilling by replacing different types of drilling tools (such as diamond drill bits, alloy drill bits), adjusting drilling parameters (rotation speed, pressure), and controlling drilling verticality to ensure the integrity of core samples.
Balancing depth and accuracy: Lightweight core drilling machines can be used for shallow exploration (tens to hundreds of meters) to quickly obtain near surface mineral information; Heavy core drilling machines can be used for deep exploration (several kilometers), which can extract continuous and complete rock cores even underground, meeting the needs of deep mineral development (such as copper and lithium mines).
Automation upgrade improves efficiency: Modern core drilling rigs are often equipped with automated control systems, which can achieve automatic loading and unloading of drill rods, real-time monitoring and adjustment of drilling parameters, reduce manual intervention, not only improve daily drilling footage (some models can reach over 100 meters per day), but also avoid core damage caused by manual operation, ensuring sample accuracy.
3. Industry demand: Meet mining industry standards and ensure development compliance
Global mining development has strict industry standards and regulatory requirements, and core drilling data is the "hard basis" for mining project approval, reserve filing, and mining supervision, making core drilling machines an "essential tool" for compliant mining development.
Project approval process: When applying for a mining license, mining enterprises must submit a mineral resource reserve report supported by core drilling data to prove the authenticity and reliability of the resource quantity. Otherwise, it cannot be approved by government departments.
Production supervision process: During the mining process, it is necessary to regularly supplement drilling with core drilling machines to verify whether the actual mining quality and reserves are consistent with the previous exploration data, ensuring that there is no excessive mining, no waste of resources, and compliance with environmental protection and resource control requirements.
Safety and environmental requirements: Compared with other exploration methods such as digging trenches, core drilling has less damage to surface vegetation, and through core analysis, safety hazards such as groundwater and gas can be predicted in advance, providing a basis for the development of mining safety and environmental protection measures, in line with the trend of "green development" in modern mining.
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