Gold edged down on Friday and was set for its worst week in more than three years, hurt by a stronger U.S. dollar amid expectations of fewer Federal Reserve rate cuts. Spot gold was down 0.1% at $2,562.61 per ounce, as of 0554 GMT. It has fallen more than 4% so far in the week. […]
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Wet scrubbler dust collector
Mining DocWet scrubbers accomplish particulate collection by employing water or another liquid as the collection media. There are many scrubber designs, but most particulate scrubbers work by creating a wetted target for particle collection. This wetted target plate can be a bed of water or a zone where the particle and water droplet collide. Benefits of […]
France's Orano warns of financial problems at Niger uranium plant Somair
Mining DocFrench nuclear fuels company Orano warned on Friday of a “deteriorating financial situation” at its Somair uranium plant in Niger, whose board it said had sought a temporary halt on expenditures related to mining and processing ore. Orano owns more than 60% of Somair, while Niger’s state-owned Sopamin holds the rest. Niger is one of […]
High-Sulfidation vs. Low-Sulfidation Epithermal Systems
Mining DocEpithermal deposits are types of hydrothermal mineral deposits formed from hot, mineral-rich fluids circulating near the Earth’s surface. They’re important for gold and silver mining because they can contain high concentrations of these precious metals. Epithermal deposits are generally classified into two main types: high-sulfidation (HS) and low-sulfidation (LS). Both types form in volcanic settings, […]
Dust control with pulse jet collectors
Mining DocPulse jet collectors use bags supported from a metal cage fastened onto a tube sheet at the top of the collector as shown in the figure below. Dust-laden air enters the collector and flows from outside to inside the bag. The dust cake deposits on the outside of the bag and is cleaned by short […]
Gold declines to 8-week low on stronger US dollar, yields
Mining DocGold fell for a fifth straight session on Thursday to hit its lowest level in eight weeks, pressured by a stronger U.S. dollar and rising Treasury yields amid uncertainty over the pace of the Federal Reserve’s interest rate cuts. Spot gold was down 0.7% at $2,555.85 per ounce as of 0744 GMT, after hitting its […]
Screening: Work Practices to Minimize Dust Exposure from Screens
Mining DocIntroduction Screening operations can produce high levels of dust because smaller-sized material is handled. Airborne dust is generated from the vibrating screen decks that accomplish the size separation. Additionally, material must fall some distance as part of the separation process, and some dust will be suspended by this process. Dust control for screening Dust control […]
Mining Excavators: the LIEBHERR R9800
Mining DocLiebherr R 9800 is a crawler excavator manufactured since 2014, with a weight of 800 tons and a track width of 1630 mm. It has a tear-out force of 1760 kN, a dredging depth of 9 meters, and a bucket capacity of 42 cubic meters. The excavator is equipped with a quick hitch hydraulic system. […]
980E-5 Dump Truck
Mining DocThe Komatsu 980E-5 is indeed a real model and one of Komatsu’s largest electric-drive haul trucks designed for high-capacity mining operations. The truck is powered by a 2,610 kW (3,500 HP) engine, supporting a gross vehicle weight (GVW) of approximately 1,385,000 lbs (627,999 kg) and a payload capacity of up to 400 short tons (363 […]
Gold drops 1% to two-month low as US dollar marches higher
Mining DocGold prices dipped 1% to their lowest levels in nearly two months on Tuesday as the U.S. dollar soared ahead of economic data and comments from Federal Reserve officials that could shed light on the interest-rate path under the Trump administration. Spot gold slipped 1% to $2,594.55 per ounce by 0940 GMT, after hitting its […]
What is a mine shaft?
Mining DocYou’ve probably heard the term “mineshaft” before if you’ve ever been near a mining operation. Although this usage isn’t absolutely accurate, laypeople frequently use the word to refer to any subterranean tunnel used for mining. A mining shaft, then, is what? To find out more about this unusual and audacious excavation project, continue reading. What […]
Gold ETF demand turns positive for year-to-date, says WGC
Mining DocGlobal physically-backed gold exchange-traded funds (ETFs) saw inflows for the sixth straight month in October, with year-to-date flows turning positive for the first time this year, the World Gold Council (WGC) said on Thursday. Demand was supported by North American and Asian flows, the WGC added. As geopolitical tensions rise and market uncertainties persist, investors […]
Centrifugal collectors or cyclones
Mining DocCyclones are a dust collection device that separates particulate from the air by centrifugal force. The cyclone works by forcing the incoming air stream to spin in a vortex. As the air stream is forced to change direction, the inertia of the particulates causes them to continue in the original direction and to be separated […]
Rio Tinto and China’s State Power Investment Corporation partner to trial battery swap truck technology
Mining DocRio Tinto will partner with China’s State Power Investment Corporation (SPIC) to demonstrate battery swap electric haul truck technology at the Oyu Tolgoi copper mine in Mongolia. Battery swapping technology allows a battery electric vehicle to quickly exchange a discharged battery pack for a fully charged one, instead of recharging the vehicle at a static […]
Hoods: Hoods and blowing versus exhausting ventilation
Mining Doc
Introduction Hoods are specifically designed to meet the characteristics of the type of ore or product being processed. An effective hood is a critical part to any system because if the hood does not capture the dust, the rest of the exhaust ventilation system becomes meaningless. A properly designed hood will create an effective flow […]

