•The first priority is to confirm the commercial rate of cutting in hard rock •Safety of the MRE process vs Drill and Blast •Understand what is possible for versatility\maneuverability •This will come at the expense of advance rate •First step to the future of continuous mining
Get PriceMining Mining Underground mining: When any ore body lies a considerable distance below the surface, the amount of waste that has to be removed in order to uncover the ore through surface mining becomes prohibitive, and underground techniques must be considered. Counting against underground mining are the costs, which, for each ton of material mined, are much higher underground than on the ...
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Get PriceDD321 is a twoboom, electrohydraulic mining development drill rig engineered to excel in demanding conditions and multiple applications. The various options of this mining jumbo make it suitable for a range of tasks, most commonly face drilling, crosscut drilling and bolthole drilling.
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Get Priceoffers 3,723 hydraulic hard rock drilling machine products. About 78% of these are mine drilling rig, 1% are mining machinery parts, and 1% are drill bit. A wide variety of hydraulic hard rock drilling machine options are available to you, such as ore, water well, and coal.
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Get PriceMay 15, 2018· Step 1 Drill Jumbo drillers drill holes into hard rock to load with explosives for a blast . ... Truck breakdowns can bring operations to a halt, especially if it’s on the ramp leading from an open pit. Another recent success at Cortez is the “Asset Health Tool” app, which is making major strides in flagging probable part failures to ...
Get PriceNov 22, 2014· Drilling pattern for holes of explosives may differ depending upon rock type, cross section, experience expertise and type of explosive suggested. Methods are similar in principle like Full Face Method Top Heading and benching Drift Method Continued 20. Tunneling through hard rock almost always involves blasting.
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Get PriceThe equipment selection process for an underground mine design plan has an extremely wide scope as there are a myriad of parameters to consider when incorporating mobile and stationary equipment in hard or soft rock mining applications. This article primarily focuses on the initial selection of mobile equipment in hard rock mining operations.
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Get PriceMar 23, 2017· Rock splitting solution on Hong Kong bypass 23 Mar 2017. Shani Wallis, TunnelTalk. ... a maximum of 5m of unsupported length per round and the bench following at a distance of about 30m to accommodate a ramp and space for the drilling jumbo on the bench (Fig 4). ... Performance of NATM hard rock tunnelling for large span mined tunnel underneath ...
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Get PriceThere are many hard working people from coast to coast that support their families through direct and indirect employment in the oilsands. ... run all equipment used in the mechanized style of underground mining, including electric / hydraulic 2 boom jumbo, and rock bolt jumbo, specializing in ramp development. ... jumbo drill operator di PT ...
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Get PriceRock drills We offer rock drills with speed, lower impact force, turning and flushing when drilling holes. ... Petrol rock drill. When you combine high impact rate and lower impact energy with rotation, you get a very powerful drill. Pneumatic rock drills. Surface, underground and DSI rock drills Pusher legs. Pusher legs support in production ...
Get PriceTHE MTI Ramp Runner 2 two Boom Hydraulic Drill Jumbo is designed for drilling vertical, horizontal and angled holes in underground production and development headings. It features two hydraulic percusion drifters designed to drill headings 19′ 11″ by 27′ 2″ ( m by m).
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Get PriceUnderground hard rock mining refers to various underground mining techniques used to excavate hard minerals, usually those containing metals such as ore containing gold, silver, iron, copper, zinc, nickel, tin and lead, but also involves using the same techniques for …
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Get PriceThe selection of underground mining methods is primarily based on the geological/spatial ... A ramp is an in clined opening connecting levels or stopes to ... drilling and blasting are usually employed when the ore is too hard for cutting. A drifting jumbo equipped with one or multiple rock drills is employed for penetrating horizontal
Get PriceHard Rock Tunneling through hard rock almost always involves blasting. Workers use a scaffold, called a jumbo, to place explosives quickly and safely. The jumbo moves to the face of the tunnel, and drills mounted to the jumbo make several holes in the rock.
Get PriceShaft construction. ... Foldable jumbo drills are used for all of the drilling down at the base of the shaft. The jumbos are lowered down to the working face and then its legs are expanded to allow for vertical drilling. They are removed after drilling is complete to allow for blasting. ... Hard Rock Miner's Handbook. North Bay: McIntosh ...
Get PriceNov 17, 2015· has an extensive product suite of hard rock equipment, including hydraulic jumbo drills, inthehole production drills, loaders, and trucks. Our full line of heavyduty development and production drilling jumbos for mining and tunneling use Montabert HC series drifters and Intelsense ...
Get PriceDD2710 is a development drill rig designed for underground hardrock mines that require very high capacity and reliability. It offers a good performancetocost ratio for x drifts. This drill rig will give you tools increases productivity, improves safety and lowers operating costs.
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Get PriceChoosing a Rock Drill. First – it is important to understand that a percussion rock drill does not cut through rock. Each blow shatters the rock in front of the bit the steel and bit then rotates slightly and it shatters new rock while air is blown down the center of the drill steel clearing the bit face and blowing the chips up and out of the hole.
Get PriceLPG Caverns Storage Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. ... 38 39 40 Gas Cavern Construction 41 Access Ramp (AR) Upper Connection (UC) ... (For Hard Rock) Two Boom Jumbo (Used for drilling in hard rock) Excavation using Road Headers (For Soft Rock) ...
Get PriceGetman Corporation is a global supplier of mobile equipment to the mining industry, offering customerspecific solutions to underground mines in the production and production support classes of equipment. All Getman equipment is designed with extensive research and development and is supported by over sixty years of experience in serving the underground mining industry.
Get PriceA Drilling jumbo or drill jumbo is a rock drilling machine.. Use. Drilling jumbos are usually used in underground mining, if mining is done by drilling and are also used in tunnelling, if rock hardeness prevents use of tunnelling machines.
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