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  • BULKtalk: Best practice in chute design - Part one
    BULKtalk: Best practice in chute design - Part one

    Chutes protect personnel from contact with ore moving at high velocity, from rotating components such as pulleys and drives, and provide safe access for operation and maintenance activities. Integrate chutes into adjacent guards to cover nip points

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  • Search Results
    Search Results

    Search Lincoln Electric Welders, Welding Consumables, Gear and Lincoln Electric Promotions

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  • Safety Considerations For Transport Of Ore And Waste In
    Safety Considerations For Transport Of Ore And Waste In

    Jan 01, 1998 A full-scale mock-up of actual ore pass and chute assemblies was duplicated and tested for load response. Data from a particle flow code and the mock-ups were com-pared. Loads on an active ore pass chute were measured

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  • Sudbury tech company says its sending world's largest ore
    Sudbury tech company says its sending world's largest ore

    Aug 12, 2019 Variant Mining Technologies is calling it the biggest ore chute in the world. The Sudbury-based company said it built the chute for Rio Tinto's Oyu Tolgoi mine— a combined underground and open

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  • Underground Mining Methods - UFRGS
    Underground Mining Methods - UFRGS

    Mining advances downward along the step room angle. Classic Room-and-Pillar Mining. In classic room-and- pillar mining, only a minimum of development work is required to prepare a flat-bedded deposit for mining. Roadways for ore transport and communication are established inside production stopes. Excavation of roadways can be combined with ore

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  • Ore pass practice in Canadian mines | Request PDF
    Ore pass practice in Canadian mines | Request PDF

    A typical finger raise-ore pass configuration is illustrated in Fig. 3. In Canadian underground mines, a typical finger raise has cross-section dimensions of 1.5 9

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  • Loading Systems - Wabi Crop
    Loading Systems - Wabi Crop

    Loading systems designed and manufactured by Wabi: Single or double compartment skip loading station designs. Volumetric or gravimetric payload measurement. Ore pass or belt conveyor feed capabilities. In-line ore pass discharge chutes for rail or truck haulage and arc gate style loading chutes. Systems provided with either pneumatic or

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  • Chutes - Metso Outotec
    Chutes - Metso Outotec

    Customized chutes for mining operations. Metso Outotec designs, manufactures and supplies engineered and tailored chute solutions to your exact needs. This includes lined hood and spoon style chutes as well as our Wearback™ chutes, which are the industry leading rock-on-rock transfer technology. All chute designs are backed by extensive

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  • ORE PASS REPLACEMENT and REHABILITATION
    ORE PASS REPLACEMENT and REHABILITATION

    conveyor load-out chute – 2.0m diameter x 10m long Hardox steel lined. WOODCUTTERS MINE (NT) Stage 1 and 2 – installation of grizzlies, ore passes and feeders. BOUNTY MINE (WA) Installation of grizzlies, ore passes, surge chamber, control chute and feeder. MOUNT ISA MINES (QLD) Enterprise Design, supply and install ore pass grizzlies

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  • Ore Passes - MiningInfo
    Ore Passes - MiningInfo

    Material within the ore pass that is high in fines should be constantly moving; Water inflow into the ore pass should be avoided. Ratholing. This can be controlled by modifying the size of the chute or hole drawing from the ore pass. Its a subject for detailed engineering stage. Wear Based on a review of ore pass literature, operators differ in

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  • Our underground mines - LKAB
    Our underground mines - LKAB

    Chute loading/transport. The ore is transported from the rock bins at the ore pass to huge crushers. In Kiruna, transport takes place using driverless trains to the main level, 1,365 metres below ground. In Malmberget, where mining is performed in several ore bodies at the same time, the ore is transported to the crushers in large trucks

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  • Mining Case Studies - Vesconite
    Mining Case Studies - Vesconite

    The primary door allows the required ore to pass through the chute, while the secondary door ensures that the chute remains closed in the case of a mud rush. In the case of a door jam, the secondary door serves as a backup to avoid any ore or

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  • Descender Systems - Variant Mining Technologies
    Descender Systems - Variant Mining Technologies

    Descender Pass is a permanent ore pass solution that provides a wear-resistant lining. The Descender Pass is also suitable for replaceable wear liners with several options for attachment with no access to the outside of the system

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  • Grizzly - Mining School - Mines
    Grizzly - Mining School - Mines

    A grating placed over an opening to an ore pass or chute usually made of steel rails that prevents large rocks or ore from falling below. Adit Chute Collar Country Rock Cribbing Crosscut Crusher Deposit Dip: Drift Exploration Fault Footwall Grizzly Hanging Wall Headframe Hematite: Hoist Incline Inclined Shaft Level Magnetite Outcrop Ore Ore

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  • Department of Civil & Mineral Engineering John
    Department of Civil & Mineral Engineering John

    Ore Pass Systems Expand. Recognized as the leading mining authority on ore pass systems. My contribution has been multi-faceted: a comprehensive database of ore pass and chute performance in over 25 mines in Canada, USA and Africa has identified best practices and documented ore pass failures

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  • Design Analysis of Underground mine Ore Passes:
    Design Analysis of Underground mine Ore Passes:

    Title: Design Analysis of Underground mine Ore Passes: Curent Research Approaches Author: Deanna Baumann Created Date: Thursday, December 09, 1999 3:27:18 PM

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  • World's largest ore chute created in Sudbury - Northern
    World's largest ore chute created in Sudbury - Northern

    Aug 06, 2019 A manufacturing shop in Greater Sudbury has created the largest ore chute in the world, which will soon be shipped out and installed in one of the largest copper and gold mining operations in the world, the Rio Tinto Oyu Tolgoi mine in Mongolia.. The massive steel chute, as big as a house and with built-in safety features, was manufactured at Variant Mining

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  • CDC - Mining - Application of Physical Modelling and
    CDC - Mining - Application of Physical Modelling and

    The statistics show that nearly 75% of injuries are directly or indirectly related to pulling or freeing of ore-pass chutes, the use of hand tools in ore passes, falls of broken rock in ore passes and structural failures of chutes or gates and ore-pass walls

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  • Glossary of Mining Terms - SEC
    Glossary of Mining Terms - SEC

    Grizzly (or mantle) - A grating, usually constructed of steel rails, placed over the top of a chute or ore pass for the purpose of stopping large pieces of rock or ore that may hang up in the pass. Gross value - The theoretical value of ore determined simply by applying the assay of metal or metals and the current market price

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  • Ore and waste chute design guide - IRSST
    Ore and waste chute design guide - IRSST

    Influence of excavation inclination and particle shape on ore pass hang-ups. Hadjigeorgiou J., Turcotte P., Lessard J.-F. Source: in Canadian Institute of Mining, Metallurgy and Petroleum Annual General Meeting (105th : 4-7 May, 2003 : Montr al, Canada), 2003. Rock pass operational problems in Quebec underground mines

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  • HPE are Suppliers and Manufacturers of Underground Mining
    HPE are Suppliers and Manufacturers of Underground Mining

    Hydropower as an energy medium, is the use of high pressure water (typically 100 bar – 250 bar) to power, drive and operate various items of equipment such as tunnel development drill rigs, reef boring drill rigs, ore pass development drill rigs, drain hole drill rigs, hand held rock drills, drifters, DTH hammers, monorail systems, rock loaders, ore pass chutes, cooling fans, emulsion

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  • Ore Pass - Mining Fundamentals
    Ore Pass - Mining Fundamentals

    May 24, 2014 Unloading of ores from the passes can be carried out using underflow or side discharge chutes. Ore passes are developed using two conventional methods: the mechanical method, which uses a raised borer, and drill and blast methods. Alimak is one of the most common ore pass raising and drop-raising techniques

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  • Ore Pass Chute - YouTube
    Ore Pass Chute - YouTube

    Nov 23, 2017 About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators

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  • 04 - Ore Passes, Chute Loading & Horizontal Haulage
    04 - Ore Passes, Chute Loading & Horizontal Haulage

    Jan 29, 2021 04 – Ore Passes, Chute Loading & Horizontal Haulage EngineeringOre passes Ore pass grizzlies Ore pass liners Inline loading chutes Rail haulage cars Rail haulage dump stations Instrumentation & control Supply specification Implementation program Capital cost estimate Procurement See supply of mine equipment & infrastructure. ConstructionOre pass

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  • Waste & Ore Pass Design @ Underground Transfer Points
    Waste & Ore Pass Design @ Underground Transfer Points

    Apr 02, 2017 In vertical or steep ore passes, chunks of hard ore falling considerable distances are likely to break the chute gates unless some ore is left in the bottom at all times. The fall in long ore passes may be broken by short offsets or by reversing the dip

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  • Chute - Mining School - Mines
    Chute - Mining School - Mines

    An inclined opening by which ore is drawn from a stope into mine cars. This is usually constructed of wood and at its bottom has a manual gate to control the flow of ore

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  • Taking Intelligence Underground - Mining Chutes | Variant
    Taking Intelligence Underground - Mining Chutes | Variant

    A chute system is located at the bottom of each ore pass. “The chute is a device that allows ore to be transferred safely to the haulage vehicles,” Meloche explained. “It controls the flow so haulage equipment can be loaded quickly and safely.”

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  • Analysis of Ore Pass Hang-Ups in Long Vertical Ore Passes
    Analysis of Ore Pass Hang-Ups in Long Vertical Ore Passes

    Sep 01, 2020 As is well known, once an ore pass hang-up occurs, it can cause extensive damage during mining operations, because the ore supply is interrupted. Moreover, considerable labor is required to eliminate hang-ups

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