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https://www.cat.com/en_US/products/new/equipment/underground-longwall.html
Cat® customized systems for longwall mining range from hydraulic roof supports and automated plow systems to shearers, face conveyors and roof support carriers.
https://en.wikipedia.org/wiki/Longwall_mining
Longwall mining is a form of underground coal mining where a long wall of coal is mined in a single slice (typically 0.6–1.0 m (2 ft 0 in–3 ft 3 in) thick). The longwall panel (the block of coal that is being mined) is typically 3–4 km (1.9–2.5 mi) long and 250–400 m (820–1,310 ft) wide.
http://s7d2.scene7.com/is/content/Caterpillar/C841461
Caterpillar is the world leader in longwall roof support technology. In the early 1970s, demanding mining conditions in German coal mines set the stage for extensive R&D in roof support technology. Steeply inclined coal seams both thick and
http://jeteas.scholarlinkresearch.com/articles/Design%20of%20a%20Powered%20Support%20System%20in%20Enugu%20Coal%20Mine%20%202.pdf
Design of a Powered Support System in Enugu Coal Mine Akande, J.M. and Saliu M.A. Department of Mining Engineering, The Federal University of Technology, P.M.B. 704, Akure. Corresponding Author: Akande, J.M _____ Abstract The main aim of this research work is to design the power support system that will create a safe work
http://www.undergroundcoal.com.au/fundamentals/07_overview.aspx
LONGWALL MINING Overview. In the method of secondary extraction known as longwall mining a relatively long mining face (typically in the range 100 to 300m but may be longer) is created by driving a roadway at right angles between two roadways that form the sides of the longwall block, with one rib of this new roadway forming the longwall face.
https://www.mining.com/web/caterpillar-to-present-new-longwall-mining-products-and-advanced-technologies-at-katowice-mining-fair/
Aug 21, 2019 · Caterpillar will present a number of new longwall mining products and solutions at the International Trade Fair for Mining, Power Generation and Metallurgy, September 10 through 13 in …
https://mining.komatsu/underground-mining/longwall-systems
Joy complete longwall systems represent the ultimate solution for high-production longwall mining. Joy incorporates best-in-breed shearers, roof supports, face conveyors, stageloaders, crushers, and mobile belt tail pieces to deliver a complete longwall system that is in a class of its own.
https://mining.komatsu/technology/mining-intelligence/longwall-3d-visualization
This allows operators to rapidly become familiar with key components and the operation of the longwall equipment. Train your operators. Longwall visualization also allows for mining companies to provide training to operators in a safe environment that fully visualizes and enhances in 3D the equipment and conditions in which they will be working.
https://www.ampcontrolgroup.com/underground-mining-services/
Underground Mining Services. Print Underground Mining Services. As an OEM of underground and longwall power distribution equipment, Ampcontrol is committed to supporting its customers to maintain efficient and safe operations. We strive to optimise your electrical assets in harsh underground environments. ... Longwall Support. As an electrical ...
https://www.britannica.com/technology/coal-mining/Underground-mining
Longwall mining. In the longwall mining method, mine development is carried out in such a manner that large blocks of coal, usually 100 to 300 metres wide and 1,000 to 3,000 metres long, are available for complete extraction (see photograph).A block of coal is extracted in slices, the dimensions of which are fixed by the height of coal extracted, the width of the longwall face, and the ...
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