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Mechanical 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). […]

Cutting 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 […]

Introduction 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 […]

One 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 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 […]

Although field-based measurements at individual mine sites are critical methods for assessing site conditions and recovery needs, these methods cannot be applied retrospectively to provide insight into previous site conditions and can be time- and cost-prohibitive when applied across large geographic extents. Remote sensing, however, can provide measurements of past and present surface characteristics and […]

Definition CO2 rock blasting, also known as carbon dioxide rock breaking or gas expansion cracking, is a technique used for rock excavation and breaking in various applications, including mining, quarrying, and construction projects. It is an alternative to traditional methods such as explosives or mechanical methods like drilling and hammering. The following describes how to […]

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. […]

Wet 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 […]

French 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 […]