Remote sensing technology is widely used in detection of earth resources, prediction of earthquake and volcanic eruption, monitoring of environmental pollution as well as departments such as metallurgy, geology, oil, agriculture, forestry, water conservancy, surveying and mapping, weather, ocean and so on. Remote sensing technology is superior with characteristics of wide range, fast speed and […]
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Resolute Mining's CEO and two executives released by Mali government
Mining Doc
Australia’s Resolute Mining said on Thursday its CEO Terence Holohan and two other employees, who were detained by the Mali government earlier this month, have been released from the country. Resolute’s CEO and two executives were detained in Mali’s capital Bamako to hold discussions with mining and tax authorities regarding general activities related to the company’s business practices, […]
Gold gains for fourth day as geopolitical tensions escalate
Mining Doc
Gold prices rose for a fourth straight session on Thursday, driven by safe-haven demand amid escalating tensions between Ukraine and Russia, while investors awaited remarks from U.S. Federal Reserve policymakers for clues on the interest rate outlook. Spot gold was up 0.5% to $2,663.47 per ounce, as of 0745 GMT, while U.S. gold futures rose […]
Reverse air collectors: an overview
Mining Doc
Reverse air collectors use a traveling manifold to distribute low-pressure cleaning air—3–7 pounds-force per square inch gauge (psig)—to the filter bags for reconditioning. They have no compressed air requirements and involve no freezing of air lines. On the negative side, they have larger footprints than conventional collectors and maintaining their cleaning mechanisms is difficult. They […]
China finds $83 billion worth of gold reserves in Hunan
Mining Doc
China has found gold reserves worth 600 billion yuan ($82.9 billion) in central Hunan province, state outlet Xinhua news said on Thursday. China is the world’s largest gold producer, accounting for around 10% of global output in 2023, data from the World Gold Council showed. It consumed 741.732 metric tons of gold in the first three quarters […]
Mechanical shaker collector
Mining DocMechanical shakers use a mechanical rapping device to remove the excess dust cake; however, the airflow through the collector must be temporarily stopped to clean the bags. These shakers involve low maintenance and low operating costs, but they require large amounts of space, have limited design flexibility, and have low air to cloth ratios (2:1). […]
Important influence factors of cut blasting
Mining DocCutting blasting is the key to the blasting excavation of rock tunnel, and the main factors influencing the blasting effect are the cutting method and blasting parameters. Cutting blasting is a physical and chemical process of rock and explosive, which is accompanied by high temperature, high pressure and high strain. There are four main factors […]
Collector discharge devices
Mining DocIntroduction The dust collected in a baghouse falls into a hopper below the bags. This hopper must have a discharge device that not only releases the accumulated dust but also ensures a seal between the baghouse and outside air to maintain negative pressure within the unit. Common hopper waste discharge devices available for baghouses are […]
The challenges of scaling operations in underground mines
Mining DocOne of the most important tasks in underground mining for worker safety and mine stability is scaling, which is the act of removing loose rock from mine walls and ceilings (sometimes referred to as “backs”). Miners and engineers must overcome a number of obstacles in scaling operations despite their significance in order to preserve productivity […]
The Kamoa-Kakula complex
Mining DocThe Kamoa-Kakula Copper Mine — a joint venture between Ivanhoe Mines (39.6%), Zijin Mining Group (39.6%), Crystal River Global Limited (0.8%) and the Government of the Democratic Republic of Congo (20%) — is a very large, near-surface, flat-lying, stratiform copper deposit with adjacent prospective exploration areas within the Central African Copperbelt, approximately 25 kilometres west […]