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For most mining operations, a familiar reality sets in after years of production: ore grades are declining, stripping ratios are rising, and the traditional way of chasing volume is hitting a financial wall.

When facing this bottleneck, many mine managers immediately think of a massive plant expansion—buying more ball mills, expanding flotation circuits, or upgrading the entire wet processing line. But in today’s economic climate, that approach often traps operations in a capital expenditure (Cap

The scanning target is a metal mine goaf located approximately 650 meters underground. We conducted detailed and accurate scanning of the goaf and built a complete 3D model of the mine cavity, providing comprehensive data support for subsequent backfilling operations.

The mine features narrow passages, complex surroundings and crisscross routes. Long-term disuse has rendered some areas hazardous and inaccessible to conventional scanning equipment. Poor lighting and single access passages across m

The density of steel balls is approximately 7.6-7.8g/cm³, while the density of ceramic balls is generally 3.6-3.8g/cm³, roughly half that of steel balls. When the filling rate of the ball mill remains unchanged, the lower density results in the grinding media being half as heavy, reducing the load on the ball mill and consequently lowering the current. If the grinding efficiency and hourly production of the mill remain unchanged, the power consumption for grinding will inevitably decrease.

The ba

The charge length in blasting operations significantly influences the fragmentation of rock (Taiwo, 2022)i. It defines the quantity of explosive loaded into each blast hole, directly correlating with the amount of energy generated along each meter of the borehole profile. An optimal charge length ensures efficient energy distribution, which is critical for achieving the desired fragmentation size and shape.

Charge length is contingent upon several factors, including the total length of the boreho

Blast fragmentation analysis is a crucial process in mining, designed to evaluate the size distribution of rock fragments after a blast. It plays a key role in optimizing the performance of downstream operations, such as loading, hauling, crushing, and grinding. By assessing the fragmentation, mining engineers can determine how well the blast was executed and make adjustments to improve future blasts.
Effective fragmentation ensures that the rock size is compatible with the crusher gape, minimizi

Definition of Burden
Burden is defined as the horizontal distance from the front of the blast hole to the nearest free face of rock. It plays a crucial role in determining how effectively explosive energy is utilized during blasting operations.

Burden and Spacing
Burden is closely related to spacing, which is the distance between adjacent blast holes. Together, these factors influence the distribution of explosive energy throughout the rock mass. Optimal burden and spacing ensure that energy is eff

ey-gl-top-10-business-risks-and-opportunities-for-mining-and-metals-in-2025-09-2024.pdf

Forbes World's Billionaires List. The Richest in 2023. MINING & METALLURGY (Top 1-10): 

1. #24 Gautam Adani & family (India) - coal
2. #52 Gina Rinehart (Australia) - iron ore
3. #54 German Larrea Mota Velasco & family (Mexico) - copper, molybdenum, silver, coal
4.  #56  Low Tuck Kwong (Indonesia) - coal
5. #58 Andrey Melnichenko (Russia) -  baddeleyite concentrate, apatite concentrate, iron  concentrate, phosphate fertilizers,  feed phosphates, potash fertilizers, coal
6. #62 Vladimir Potanin (Russi

The Key Minerals in an EV Battery

Surface and underground mining technology - Anna Gogolewska.pdf

Underwater blasting, often known as submarine blasting, is used for a wide range of purposes. This includes harbor and channel widening, trench excavation for establishing oil and gas pipelines and communication cables, demolition operations, and substructure construction. Particularly, underwater rock blasting is the most difficult and least understood source of vibration, which may have a significant impact on the safety of neighboring buildings and structures, especially berthing structures.