John Crane Retrofit Helps Copper Mine Save Around 288,000 Liters of Sealing Water Per Day on Critical Tailings Pump
John Crane retrofitted a mechanical seal on a large underflow thickener pump at a major copper mine, slashing the clean water required for sealing by roughly 288,000 liters per day. The new seal replaces a traditional stuffing‑box that demanded shaft‑sleeve changes every four months, a process that consumed two shifts, a 100‑ton crane, and heightened safety risk. By integrating a controlled seal‑flush system with diamond‑faced materials, the pump now runs reliably with 7.5‑8 m³/h of water versus 20 m³/h previously. The upgrade aligns maintenance with the plant’s annual service window, reducing unplanned downtime.
Marble Powder Strengthens Sustainable Mine Haul Roads
A new Scientific Reports study shows that blending 25% marble‑powder waste with 2% hydrated lime transforms weak, swelling clay into a high‑performance base for mine haul roads. Laboratory tests and PLAXIS 3D simulations recorded a stiffness increase from 23.8 MPa to 164 MPa...
Deep Mining Models Improve Gas Drainage and Safety
Researchers have combined dual‑porosity modeling with triaxial laboratory tests to map how stress‑driven plastic damage around deep coal‑seam boreholes influences methane flow. The study shows a four‑fold increase in in‑situ stress can produce a 13‑fold rise in damage, and identifies...
Rising Gold Prices Reshape Engagement Ring Market as Material Value Dynamics Shift
New research from 77 Diamonds shows that soaring gold prices have cut jewelry‑sector gold demand by more than 23% in Q1 2026, even as overall global gold demand rose 2.1% year‑on‑year. Gold prices jumped 16.2% quarter‑over‑quarter, making newly produced gold rings less...
Variscan Mines Uncovers High-Grade Historic Zinc Results Across Novales Trend in Spain
Variscan Mines released a compiled historic drilling dataset for its Novales‑Udías Zinc Project, revealing multiple high‑grade zinc intercepts across the Novales Trend in northern Spain. The data, drawn from over 146 historic holes and more than 52,000 m of drilling, extends...
Focus Graphite Announces One of the Largest Identified Graphite Deposits Globally at the Lac Tetepisca Project
Focus Graphite announced an upgraded NI 43‑101 mineral resource estimate for its 100% owned Lac Tetepisca project in Quebec, identifying 120,163 kt of indicated graphite at 10.27 % Cg and 24,143 kt of inferred material at 9.88 % Cg. The estimate uses a conservative 3.5 % cut‑off...
Plant-Based Mining Recovers Rare Earth Elements Sustainably
Researchers have demonstrated that hyperaccumulator plants such as Dicranopteris linearis and Phytolacca americana can extract rare‑earth elements (REEs) from soils and mine tailings, achieving recovery efficiencies near 89%. The biomass is processed via hydrometallurgical methods to produce high‑purity rare‑earth oxides,...
Underground Mine Voids Enable Large-Scale Energy Storage
A new study shows that abandoned coal‑mine goafs can be transformed into large‑scale compressed‑air energy storage (CAES) reservoirs, using detailed 3D geological modeling to assess volume and stability. The Nanshan Mine case demonstrated that pressurizing the voids between 6 MPa and...
Rising CO2 Levels Accelerate Metal Release in Mine Waste
A new study in Communications Earth & Environment shows that rising atmospheric carbon dioxide dramatically boosts microbial activity in acid mine drainage (AMD) systems, leading to faster acid generation and heightened metal leaching. Global data from 82 sites and lab...
Lithium Extraction Models Improve Sustainable Resource Management
A new study integrates Variable Weight (VW) theory with the Driver‑Pressure‑State‑Impact‑Response‑Management (DPSIRM) framework to dynamically assess ecological security in lithium‑rich Huaqiao Township. The model tracks 17 indicators at 30‑meter resolution across four time points (2010‑2024) and reveals a V‑shaped security...
Dense Drilling Improves Coal Roadway Stability
Researchers published a study in Scientific Reports demonstrating that dense drilling—a technique of closely spaced boreholes in coal‑mine roofs—significantly improves roadway stability by relieving roof stress. Field tests at the Chahasu Mine’s 31315 workface showed that reducing borehole spacing to...
Iron-Rich Slag Enables Efficient Carbon Sequestration
A recent Chemical Engineering Journal study demonstrates that iron‑rich slag can capture up to 99.5% of carbon dioxide through direct mineral carbonation, converting mining waste into stable carbonates. Two Quebec‑sourced samples were tested; the coarser S2 achieved 99.5% CO₂ removal...
Seismic Velocity Tomography Predicts Mining-Induced Rockburst Risks
A study in Scientific Reports shows that passive seismic velocity tomography can forecast mining‑induced rockbursts with over 86% accuracy. By mapping high P‑wave velocity zones, researchers linked these anomalies to future seismic events at the 1,100‑meter‑deep Xingcun Coal Mine in...
Terahertz Spectroscopy and AI Enable Coal-Rock Interface Detection
Researchers have merged Terahertz Time‑Domain Spectroscopy (THz‑TDS) with machine‑learning algorithms to create a real‑time coal‑rock interface detector that achieves 96% accuracy. Using the TAS7500SP system, they captured spectral data across 0.7‑1.3 THz, applied PCA, and trained four models, with Random Forest...
Transformer Network Enhances Underground Mining Image Resolution
Researchers introduced BDL, a transformer‑based super‑resolution network that restores degraded underground coal‑mine images. The architecture combines a Bidirectional Adaptive Interaction Module, Dual‑Group Feedforward Network, and Local Convolution Block to fuse local and global features. In tests, BDL achieved 32.07 dB PSNR...